CN115134919A - Time unit determination method, device, terminal and network side device - Google Patents

Abstract

The present application discloses a time unit determination method, apparatus, terminal, and network side equipment, which belong to the technical field of communications. The time unit determination method in the embodiment of the present application includes: a terminal determines an available time unit; wherein, the available time unit is used for Transmission of the first information; the transmission of the first information occupies a plurality of time units of the available time unit.

Description

Time unit determination method, device, terminal and network side device

technical field

The present application belongs to the field of communication technologies, and in particular relates to a time unit determination method, apparatus, terminal and network side equipment.

Background technique

In a New Radio (New Radio, NR) system, the coverage performance of Message 3 (Msg3) is poorer than that of other channels, which makes it difficult for a terminal in an area with poor signal coverage to access a cell. Therefore, NR Rel-17 introduces the mechanism of multiple transmission of Msg3 to improve the coverage performance of Msg3. At present, the NR system supports a single transmission of Msg3, and the Physical Downlink Control Channel (Physical Downlink Control Channel) scrambled according to the scheduling information of Message 2 (Message2, Msg2) or the temporary cell radio network temporary identifier (TC-RNTI) Channel, PDCCH) can determine the transmission time slot of Msg3. But when Msg3 is repeatedly transmitted, Msg3 needs to occupy multiple time slots. The terminal and the network side device need to determine which time slots in the subsequent time slots can be used for the repeated transmission of Msg3, especially whether the flexible flexible time slot or the time slot containing flexible symbols can be used for repeated transmission of the Msg3. Further, due to the initial access phase, the terminal cannot perform complex channel measurement or beam training procedures, so the data transmission in the initial access phase, such as Msg2 PDSCH, Msg4 PDSCH, Msg3 PUSCH, etc., is compared to the PDSCH in the connected state. Or the PUSCH coverage performance is poor. In order to improve the coverage performance of the data transmission in the initial access phase, the method of repeated transmission can be used to improve the coverage performance.

The NR system defines a method for the terminal to determine the configuration of the uplink and downlink time slots, and realizes the cell-level and user-level time slot configuration through Radio Resource Control (RadioResource Control, RRC) signaling and Downlink Control Information (Downlink Control Information, DCI). The terminal provides flexible uplink and downlink time slot configuration. However, the user-level time slot configuration needs to be in the connected state to configure all the cell-level and user-level uplink and downlink time slot configuration information to the terminal. In the initial access phase, the terminal can only obtain cell-level uplink and downlink time slot configurations. In the connected state, the flexible symbols configured at the cell level can be configured as downlink/uplink symbols through user-level configuration, or downlink/uplink transmission can be scheduled. The initial access terminal cannot obtain the user-level uplink and downlink time slot configuration, which may cause a conflict between the repeated transmission of Msg3 and the downlink transmission of the connected terminal on the flexible time slot or symbol. If the initial access terminal cannot transmit data using flexible timeslots or symbols and can only transmit data using uplink/downlink timeslots/symbols configured at the cell level, in the case of repeated transmission, the transmission efficiency is very low and the initial access time increases. For example, for the repeated transmission of Msg3, for a TDD mode cell, the terminal can only use the uplink time slot to send the Msg3, so the terminal needs to go through multiple timeslot configuration periods to complete the expected number of Msg3 repetitions. If the Msg3 can be transmitted using flexible time slots or symbols, the time for repeated transmission of the Msg3 will be shortened. Further, if it is necessary to repeatedly transmit Msg2, MsgB, Msg4 or PUCCH repetition for HARQ-Ack for Msg4/MsgB, a similar problem will also be encountered.

The relevant time slot determination method cannot guarantee that the terminal and the network side equipment in the disconnected state will repeatedly transmit the Physical Downlink Shared Channel (PDSCH)/Physical Uplink Shared Channel (PUSCH)/Physical Uplink Control Channel (Physical Uplink Shared Channel) The time slot of the uplink control channel (PUCCH) has a consistent understanding, which cannot ensure the successful repeated transmission of PDSCH/PUSCH/PUCCH, and the transmission efficiency is low.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a time unit determination method, apparatus, terminal, and network side equipment, which can solve the problem that the related time slot determination method cannot ensure that the terminal and network side equipment in a disconnected state have the same time slot for repeatedly sending PDSCH/PUSCH/PUCCH. Consistent understanding leads to the problem of repeated PDSCH/PUSCH/PUCCH transmission failure and low transmission efficiency.

In a first aspect, a method for determining a time unit is provided, applied to a terminal, and the method includes:

The terminal determines the available time unit;

Wherein, the available time unit is used for transmission of the first information; the transmission of the first information occupies multiple time units of the available time unit.

In a second aspect, a method for determining a time unit is provided, which is applied to a network side device, and the method includes:

The network side device sends downlink signaling to the terminal, where the downlink signaling carries indication information of available time units;

Wherein, the available time unit is used for transmission of the first information; the transmission of the first information occupies multiple time units of the available time unit;

Wherein, the downlink signaling includes at least one of the following: downlink control information DCI, system messages, and high-level signaling; the downlink signaling is carried in at least one of the following: physical downlink control channel PDCCH, physical downlink shared channel PDSCH.

In a third aspect, a device for determining a time unit is provided, the device comprising:

a first determining unit for determining an available time unit;

Wherein, the available time unit is used for transmission of the first information; the transmission of the first information occupies multiple time units of the available time unit.

In a fourth aspect, a device for determining a time unit is provided, the device comprising:

a first sending unit, configured to send downlink signaling to the terminal, where the downlink signaling carries indication information of available time units;

Wherein, the available time unit is used for transmission of the first information; the transmission of the first information occupies multiple time units of the available time unit;

Wherein, the downlink signaling includes at least one of the following: downlink control information DCI, system messages, and high-level signaling; the downlink signaling is carried in at least one of the following: physical downlink control channel PDCCH, physical downlink shared channel PDSCH.

In a fifth aspect, a terminal is provided, the terminal includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor The steps of implementing the method as described in the first aspect.

In a sixth aspect, a terminal is provided, including a processor and a communication interface, wherein the processor is used to determine an available time unit; wherein the available time unit is used for transmission of first information; The transmission occupies a plurality of time units of the available time units.

In a seventh aspect, a network side device is provided, the network side device includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the The processor implements the steps of the method as described in the second aspect when executed.

In an eighth aspect, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to send downlink signaling to a terminal, and the downlink signaling carries indication information of available time units; wherein, The available time unit is used for transmission of the first information; the transmission of the first information occupies multiple time units of the available time unit; wherein, the downlink signaling includes at least one of the following: downlink control information DCI, System message, high-level signaling; the downlink signaling is carried in at least one of the following: physical downlink control channel PDCCH, physical downlink shared channel PDSCH.

In a ninth aspect, a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps as described in the first aspect are implemented. The steps of the method of the second aspect.

A tenth aspect provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the method according to the first aspect , or implement the method described in the second aspect.

In an eleventh aspect, a computer program/program product is provided, the computer program/program product is stored in a non-volatile storage medium, the program/program product is executed by at least one processor to implement the first The steps of the method of the aspect, or the steps of implementing the method of the second aspect.

In this embodiment of the present application, the terminal determines an available time unit for transmission of the first information, and the transmission of the first information occupies multiple time units of the available time unit, so that the terminal and the network in the disconnected state can be connected The test equipment has a consistent understanding of the time unit for repeated PDSCH/PUSCH/PUCCH transmission, thereby ensuring the successful repeated PDSCH/PUSCH/PUCCH transmission and improving transmission efficiency.

Description of drawings

FIG. 1 is a structural diagram of a wireless communication system to which an embodiment of the present application can be applied;

FIG. 2 is one of the schematic flowcharts of the method for determining a time unit provided by an embodiment of the present application;

FIG. 3 is a second schematic flowchart of a method for determining a time unit provided by an embodiment of the present application;

FIG. 4 is one of the schematic structural diagrams of the device for determining a time unit provided by an embodiment of the present application;

FIG. 5 is the second schematic structural diagram of the apparatus for determining a time unit provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

7 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a network side device according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of this application.

The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first", "second" distinguishes Usually it is a class, and the number of objects is not limited. For example, the first object may be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the associated objects are in an "or" relationship.

It is worth noting that the technologies described in the embodiments of this application are not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code division Multiple Access (Code Division Multiple Access, CDMA), Time Division Multiple Access (Time Division Multiple Access, TDMA), Frequency Division Multiple Access (Frequency Division Multiple Access, FDMA), Orthogonal Frequency Division Multiple Access (Orthogonal Frequency Division Multiple Access, OFDMA) , Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and uses NR terminology in most of the description below, but the techniques can also be applied to applications other than NR system applications, such as 6th generation (6th ^generation ) Generation, 6G) communication system.

FIG. 1 shows a structural diagram of a wireless communication system to which an embodiment of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12 . The terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant) Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile Internet Device (MID), wearable device (Wearable Device) or vehicle-mounted device (VUE) , Pedestrian Terminal (PUE) and other terminal-side devices, wearable devices include: smart watches, bracelets, headphones, glasses, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 . The network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Transmission Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. The base station in the NR system is taken as an example, but the specific type of the base station is not limited.

NR supports two types of random access procedures: the 4-step Random access channel (4-step RACH) type of Msg1 and the 2-step RACH type of MsgA. Both types of random access (Random Access, RA) procedures support contention based random access (CBRA) and contention free random access (CFRA). The 2-step RACH process is generally used in areas with better coverage to shorten the terminal access time. For areas with poor signal coverage, the terminal should use the 4-step RACH procedure to access the cell.

In 4-step RACH, the UE first sends Msg1 to the network side device, including the preamble preamble; after the UE sends the preamble, it will monitor the PDCCH within the Random Access Response (RAR) time window, and use the fallback ( fallback) DCI format, namely DCI 1_0, to receive the RAR scheduled by the PDCCH scrambled with the random access radio network temporary identifier (Random Access radio network temporary identifier, RA-RNTI). If the preamble index index in the RAR is the same as the preamble index sent by the UE, it is considered that the RAR has been successfully received. At this time, the UE can stop monitoring the RAR and send Msg3 according to the authorization instruction carried in the RAR; Msg3 is on the uplink shared channel ( Uplink shared channel, UL-SCH), and use Hybrid AutomaticRepeat reQuest (HARQ), scramble PDCCH with TC-RNTI indicated by RAR, and schedule Msg3 with fallback DCI format, DCI0_0 retransmission. The Msg3 needs to contain the unique identity of each UE. This flag will be used for Contention Resolution in Step 4. After receiving Msg3, the network side device will schedule Msg4 with DCI0_0 scrambled by TC-RNTI. When the UE successfully decodes the UE Contention Resolution Identity MAC control element contained in Msg4 and the UE Contention Resolution Identity MAC control element sent by Msg3 When the ContentionResolution Identity matches, the UE considers that the random access is successful and sets the TC-RNTI carried in the RAR to the C-RNTI, that is, the 4-step random access is completed. It should be noted that in the above four-step random access process and two-step random access process, all steps are single transmission, that is, each transmission only occupies one time slot, and the terminal device only needs to receive and transmit according to a fixed timing relationship. gap. The network equipment ensures that the random access terminal does not collide with other terminals through an internal scheduling algorithm.

When the Msg3 is repeatedly transmitted, the Msg3 needs to occupy multiple time slots. The terminal can determine the first transmission time slot of Msg3 according to the time sequence relationship; in addition, the terminal and the base station need to determine which time slots in the subsequent multiple time slots can be used for repeated transmission of Msg3. In particular, it is determined whether flexible slots or slots containing flexible symbols can be used for Msg3 repeat transmission.

The NR system has flexible configuration of uplink and downlink time slots. There are three types of OFDM symbols of radio resources: downlink symbols DL symbols, uplink symbols UL symbols and flexible symbols flexibility symbols. Flexible symbols can be used to transmit downlink signals or uplink signals, and the actual transmission situation is determined by the actual scheduling situation of the system. The uplink and downlink time slot configuration of NR adopts semi-static configuration mode, and flexible time slot configuration is realized through RRC signaling (tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-Configuration Dedicated) and downlink control information (DCI 2_0).

In the initial access phase, the terminal can only obtain cell-level uplink and downlink time slot configurations. In the connected state, the flexible symbols configured at the cell level can be configured as downlink/uplink symbols through user-level configuration, or downlink/uplink transmission can be scheduled. The initial access terminal cannot obtain the user-level uplink and downlink time slot configuration, which may cause a conflict between the repeated transmission of Msg3 and the downlink transmission of the connected terminal in the flexible time slot or in compliance. If the initial access terminal cannot transmit data using flexible timeslots or symbols and can only transmit data using uplink/downlink timeslots/symbols configured at the cell level, in the case of repeated transmission, the transmission efficiency is very low and the initial access time increases. Further, if it is necessary to repeatedly transmit Msg2, MsgB, Msg4 or PUCCH repetition for HARQ-Ack for Msg4/MsgB, a similar problem will also be encountered. That is, it is necessary to determine whether flexible time slots or symbols are available for repeated transmission. For PUCCH repetition for HARQ-Ack for MSG4/B and MSG3, it is necessary to ensure that these time slots or symbols are used for uplink transmission; for MSG2, MSG4 repeated PDSCH transmission, it is necessary to ensure that these time slots or symbol networks are used for downlink transmission.

To sum up, it is necessary to define a new time slot determination rule to ensure a consistent understanding of the time slot for repeated PDSCH/PUSCH/PUCCH transmission in the disconnected state, to ensure that the repeated PDSCH/PUSCH/PUCCH transmission is successful, and to improve transmission efficiency.

The method, apparatus, terminal, and network-side device provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings through some embodiments and application scenarios thereof.

FIG. 2 is one of the schematic flowcharts of the method for determining a time unit provided by an embodiment of the present application. As shown in Figure 2, the method includes the following steps:

Step 200, the terminal determines the available time unit;

Wherein, the available time unit is used for transmission of the first information; the transmission of the first information occupies multiple time units of the available time unit.

Wherein, the time unit may be a time slot, an OFDM symbol, a subframe or a radio frame. Optionally, each time unit may include at least one slot, OFDM symbol, subframe or radio frame.

It can be understood that the terminal determines an available time unit for transmission of the first information, and the transmission of the first information occupies a plurality of time units of the available time unit. In particular, the terminal transmits multiple copies of the first information over multiple time units in a repeated transmission manner.

If the transmission of the first information is uplink transmission, the available time unit is an available uplink time unit; if the transmission of the first information is downlink transmission, the available time unit is an available downlink time unit.

Optionally, the terminal determines an available uplink timeslot, the available uplink timeslots are used for the transmission of Msg3, and the transmission of the Msg3 occupies multiple timeslots of the available uplink timeslots.

In this embodiment of the present application, the terminal determines an available time unit for transmission of the first information, and the transmission of the first information occupies multiple time units of the available time unit, so that the terminal and the network in the disconnected state can be connected The testing equipment has a consistent understanding of the time unit for repeated PDSCH/PUSCH/PUCCH transmission, ensuring successful repeated PDSCH/PUSCH/PUCCH transmission and improving transmission efficiency.

Optionally, the first information includes at least one of the following:

message 3 Msg3;

The physical uplink control channel PUCCH for HARQ-ACK of Msg4/MsgB carrying the hybrid automatic retransmission response of message 4 or message B;

message 2 Msg2;

messageB MsgB;

Message 4 Msg4.

Optionally, the terminal determines the available time unit, including:

The terminal receives the downlink signaling sent by the network side device, and determines the available time unit according to the indication information of the available time unit carried in the downlink signaling; or,

The terminal determines the available time unit based on the time unit configuration rule predefined by the protocol.

Wherein, the downlink signaling includes at least one of the following: downlink control information DCI, system messages, and high-level signaling; the downlink signaling is carried in at least one of the following: physical downlink control channel PDCCH, physical downlink shared channel PDSCH.

Optionally, the terminal in the limited coverage area sends Msg1 (the parameters of the Msg1 may be the same as the parameters of the existing protocol, or the parameters newly defined for the repeated transmission function of Msg3). The network side device detects Msg1 and configures the terminal for repeated transmission of Msg3 according to the signal quality of Msg1.

In an implementation manner, the downlink signaling may be scheduling signaling of first information transmission, the scheduling signaling of the first information transmission carries indication information of available time units, and the scheduling signaling is carried on the PDCCH or PDSCH.

In an embodiment, the downlink signaling may be higher layer signaling, such as RRC signaling, tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-Configuration Dedicated. The indication information of the available time unit is carried in the RRC signaling.

In an implementation manner, the downlink signaling may be a system message. The indication information of the available time unit is carried in the system message.

Optionally, the downlink signaling is higher layer signaling or a combination of system messages and physical layer signaling. The high-layer signaling or system message contains a variety of optional available time unit configuration information, and the available time unit configuration information is dynamically indicated through physical layer signaling.

Optionally, the indication information of the available time unit may explicitly indicate the configuration information of the available time unit, or implicitly indicate the configuration information of the available time unit.

The available time unit configuration information includes at least one of the following:

a time unit within a time unit configuration period that can be used to transmit the first information;

the transmission direction of the time unit that can be used to transmit the first information within a time unit configuration period;

The transmission direction of flexible slots/symbols within a time unit configuration period.

The time unit configuration period may be a cycle period of upper and lower time slots defined by the network device.

Optionally, the indication information of the available time unit is used to display or implicitly indicate at least one of the following: a time unit within a time unit configuration period that can be used to transmit the first information, and a time unit within a time unit configuration period that can be used to transmit the first information. The transmission direction of the time unit for transmitting the first information, where the time unit configures the transmission direction of the flexible time slot/symbol within the period.

Optionally, the implicitly indicated available time unit may be determined by the first transmission time slot of the first information.

For example, when the terminal performs the Msg3 repeated transmission, the available uplink time slot for the Msg3 repeated transmission is explicitly or implicitly determined by the Msg3 scheduling signaling of the network side device. Wherein, the display mode is to display and indicate available uplink time slots in the scheduling signaling. The implicit method is determined by the first transmission slot of Msg3. For example, Msg3 needs to occupy a*M time slots to repeatedly send a*M times, the first time slot sent by Msg3 is determined according to the scheduling information of Msg2, and M consecutive time slots are available from the first time slot time slot, and the time slot at the same position in a consecutive time unit configuration cycle of the current time unit configuration cycle is an available time slot. The value of M is dynamically indicated by downlink signaling or predefined by a protocol.

Optionally, the terminal determines the available time unit according to the indication information of the available time unit carried in the downlink signaling sent by the network side device and the configuration result of the configured uplink and downlink time units.

For example, the terminal determines the available uplink time slot according to the RRC message tdd-UL-DL-ConfigurationCommon configured by the system and the indication information in the PDCCH or PDSCH. The available uplink timeslots may include uplink timeslots and uplink symbols indicated in the RRC message and flexible indicated in the RRC message, and the indication information indicates uplink timeslots and symbols.

In an optional implementation manner, the terminal determines the available time unit based on a time unit configuration rule predefined by the protocol. For example, the value of M is predefined in the protocol. When the first information is transmitted, the terminal uses the default value of M to determine the available time unit, or the terminal only configures the uplink and downlink time slots according to the system message and selects the time unit with the same transmission direction as the time unit. Available time units.

In this embodiment of the present application, the terminal determines an available time unit for transmission of the first information based on downlink signaling sent by the network side device or a time unit configuration rule predefined by the protocol, and the transmission of the first information occupies the The multiple time units of the available time unit can enable the terminal and the network measurement equipment to have a consistent understanding of the time unit for repeated PDSCH/PUSCH/PUCCH transmission in the disconnected state, ensure the successful repeated transmission of PDSCH/PUSCH/PUCCH, and improve transmission efficiency.

The following describes how the indication information of the available time unit is specifically carried in the downlink signaling.

Optionally, determining the available time unit according to the indication information of the available time unit carried in the downlink signaling includes at least one of the following:

In the case that the downlink signaling is carried on the PDCCH, the available time unit is determined according to the fixed field of the downlink control information DCI carried in the PDCCH;

When the downlink signaling is carried on the PDSCH, the available time unit is determined according to the first content carried in the PDSCH.

It can be understood that, in an embodiment, the downlink signaling is carried on the PDCCH, and the fixed field of the downlink control information DCI carried in the PDCCH is used to indicate the available time unit configuration information.

Optionally, determining the available time unit according to the fixed field of the downlink control information DCI carried in the PDCCH includes at least one of the following:

For the initial transmission of the first information, the available time unit is determined according to the fixed field in the first DCI scrambled by the random access wireless network temporary identifier RA-RNTI carried in the PDCCH;

For the transmission or repeated transmission of the first information, the available time unit is determined according to the fixed field in the second DCI scrambled by the temporary cell radio network temporary identifier TC-RNTI carried in the PDCCH.

Optionally, the PDCCH may carry RA-RNTI scrambled DCI1_0 for Msg3 initial transmission, TC-RNTI scrambled DCI 0_0 for Msg3 retransmission, TC-RNTI scrambled DCI 0_0 for Msg4 transmission, or Newly defined DCI in disconnected state.

Optionally, the first DCI is DCI 1_0, and the second DCI is DCI 0_0.

Optionally, for the initial transmission of the first information, the fixed field in the first DCI scrambled by the random access wireless network temporary identifier RA-RNTI carried in the PDCCH is used to indicate the available time unit configuration information.

For example, for Msg3 initial transmission (initial transmission), the fixed field in DCI 1_0 scrambled by RA-RNTI is used to indicate the configuration information of available uplink time slots.

Optionally, for the transmission or repeated transmission of the first information, an available time unit is determined according to a fixed field in the second DCI scrambled by the temporary cell wireless network temporary identifier TC-RNTI carried in the PDCCH.

For example, for Msg3 retransmission (repeated transmission), the fixed field in DCI 0_0 scrambled by the TC-RNTI is used to indicate configuration information of available uplink time slots.

For example, for Msg4 transmission, the fixed field in DCI 0_0 scrambled by the TC-RNTI is used to indicate the configuration information of available uplink time slots.

In an embodiment, the downlink signaling is carried on the PDSCH, and the first content carried in the PDSCH is used as the indication information of the available time unit, that is, the first content carried in the PDSCH is used to indicate the configuration information of the available time unit.

Optionally, the determining an available time unit according to the first content carried in the PDSCH includes at least one of the following:

For the initial transmission of the first information, determine the available time unit according to the random access response RAR of the message 2 of the first format carried in the PDSCH;

For the transmission of the first information, the available time unit is determined according to the message 4Msg4 of the second format carried in the PDSCH;

Wherein, the Msg2 RAR in the first format is obtained by compressing some fields in the RAR uplink UL grant or redefining some fields in the RAR UL grant;

Wherein, the Msg4 in the second format is obtained through the fixed fields included in the Msg4.

Optionally, for the initial transmission of Msg3, the Msg2 RAR PDSCH uses a new format, compresses some fields in the RAR UL grant, and uses the compressed fields to carry the indication information of the available time unit, or compresses the fields in the RAR UL grant. Redefine it to add the ability to indicate available time units. Specifically, for example, a corresponding parameter definition is added to a Time Domain Resource Allocation (TDRA) field or a Transmit Power Control (TPC) field, and an available uplink time slot is indicated when TDRA or TPC information is indicated.

Optionally, for the transmission of Msg4, the fixed field included in the Msg4 is used to carry the indication information of the available time unit.

In the embodiment of the present application, a possible implementation manner of the indication information of the available time unit carried/carried in the scheduling signaling is provided, and the terminal determines the available time unit for transmission of the first information by acquiring the information of the corresponding field in the scheduling signaling. Time unit, the transmission of the first information occupies multiple time units of the available time unit, so that the terminal and the network measurement device in the disconnected state have a consistent understanding of the time unit for repeatedly sending PDSCH/PUSCH/PUCCH, ensuring that PDSCH/PUSCH/PUCCH repeated transmission is successful.

Optionally, the indication information of the available time unit satisfies at least one of the following:

The indication information of the available time unit indicates that the first time unit of the first information transmission starts from the first time unit, and consecutive x time units are all available time units, where x is predefined by a protocol or configured by a system message or indicated by the indication information;

The indication information of the available time unit indicates one of multiple candidate uplink and downlink configuration combinations, and the multiple candidate uplink and downlink configuration combinations are predefined by protocols or configured by system messages or by high-layer signaling;

The indication information of the available time unit indicates, in the form of a bitmap bitmap, the transmission direction of the first time unit of the first information transmission to start the subsequent y time units, or the transmission direction of all flexible time units, or a complete time unit. Configure the transmission direction of all time units within the configuration period;

The indication information of the available time unit includes a time unit format, where the time unit format is used to indicate the transmission direction of the flexible time unit configured by the network side device;

where x and y are positive integers.

It can be understood that the indication information of the available time unit has the following possible expressions or contents:

Indicates that the first time unit of the first information transmission starts with consecutive x time units which are all available time units, wherein x is predefined by a protocol or configured by a system message or indicated by the indication information;

Or, indicate one of multiple candidate uplink and downlink configuration combinations:

One of the uplink and downlink configuration combinations is an n-bit sequence, and the value of each bit represents the transmission direction of the corresponding time unit within a time unit configuration period.

Wherein, the time unit corresponding to the first bit of the n-bit sequence is one of the following:

The starting time unit of a time unit configuration period;

the zth time unit after the time unit where the physical channel carrying the indication information of the available time unit is located;

scheduling the first time unit of the first information transmission;

A time unit determined based on other reference time unit determination methods;

Among them, n and z are positive integers.

Or, in the form of a bitmap, indicating the first time unit of the first information transmission to start the transmission direction of the subsequent y time units, or the transmission direction of all flexible time units, or all time units within a complete time unit configuration period direction of transmission;

Or, the time unit format is indicated according to the format of the uplink and downlink time slot configuration in the system message. For example, the indication information of the available time unit respectively indicates the number of downlink time units and the number of uplink time units in one time unit configuration period. The available time unit is determined according to the uplink and downlink time unit configuration rules defined by the protocol.

Optionally, the role of the indication information may be to directly indicate the position of the available time unit; or to indicate the uplink and downlink transmission directions of subsequent time units, and the time unit that is the same as the first information transmission direction is the available time unit.

In this embodiment of the present application, a possible expression form of the indication information of the available time unit is provided, and the terminal determines the available time unit for transmission of the first information by acquiring the indication information of the available time unit, and the transmission of the first information Occupying multiple time units of the available time unit can make the terminal and the network measurement device in the disconnected state have a consistent understanding of the time unit for repeatedly sending PDSCH/PUSCH/PUCCH, and ensure that the repeated PDSCH/PUSCH/PUCCH transmission is successful.

It should be noted that the indication information of the available time unit should not conflict with the transmission direction of each time unit in the configuration result of the uplink and downlink time units configured by the system (for example, configured through RRC signaling tdd-UL-DL-ConfigurationCommon), that is, For a certain time slot or symbol, if the system information has been configured as downlink or uplink, the indication information should not be configured as uplink or downlink. Therefore, if a conflict occurs, a rule needs to be defined to determine the transmission direction of the conflicting time slot or symbol, that is, to define the system configuration information and the priority of the indication information.

Optionally, the terminal determining the available time unit further includes:

In the case where there is a conflict between the indication information of the available time unit and the transmission direction of the time unit configured by the network side device, determine the transmission direction of the conflicting time unit according to a preset rule;

Optionally, the preset rules include at least one of the following:

If the uplink/downlink time unit indicated by the indication information includes the downlink/uplink time unit configured by the RRC, the indication information is invalid;

The time unit in which the collision occurs determines the transmission direction according to the RRC configuration;

If the time unit indicated by the indication information conflicts with the time unit where the synchronization signal block (SSB) or the control resource set (Control resource set, CORESET) #0 is located, the indication information is invalid, or the SSB or CORESET# The time unit where 0 is located is not affected by the indication information;

If the time unit indicated by the indication information is configured as a flexible time unit in the RRC, the time unit is determined to be an available time unit.

It can be understood that, in general, the priority of the system configuration information is higher than that of the indication information.

Optionally, within one uplink and downlink time unit configuration period, the available time unit for transmission of the first information may be the first time unit that only includes the first time unit indicated by the indication information, or the first time unit indicated by the indication information. unit and the second time unit indicated in the system configuration information, wherein the transmission direction of the first time unit and the second time unit is the same.

For example, within one uplink and downlink time slot configuration period, the available uplink time slot for repeated transmission of Msg3 may be the uplink time slot indicated by the indication information only, or the time slot indicated by the indication information and the indication in the RRC configuration. the upstream time slot.

In the embodiment of the present application, a solution is provided in the case where there is a conflict between the indication information of the available time unit and the transmission direction of the time unit configured by the network side device, which can effectively improve the efficiency of PDSCH/PUSCH/PUCCH repeated transmission , reducing the completion time of repeated transmissions.

Optionally, the valid time of the available time unit includes at least one of the following:

During the period of repeated transmission of the first information, the repeated transmission of the first information is performed according to the available time unit indicated by the initial transmission of the first information, and the repeated transmission of the first information is performed at the same time unit position in the next time unit configuration period. The first information is transmitted, and after the repeated transmission of the first information is completed, the configuration of the available time unit is invalid.

Before entering the connected state to obtain the indication information of the new uplink and downlink time slot configuration, use the available time unit configuration result of the first information;

It is only valid in the current time unit configuration period, wherein, for the next time unit configuration period, the terminal monitors the corresponding configuration information.

Optionally, after the repeated transmission of the first information is completed, the operation is restored to the time slot configuration configured by the RRC.

Optionally, the Msg3 retransmission also uses the configuration of the uplink and downlink time slots configured during the initial transmission of the Msg3, that is, the retransmission operation of the repeated transmission of the Msg3 is performed according to the available uplink time slots indicated by the initial transmission of the Msg3.

For example, the system schedules the transmission of Msg3 to be repeated four times, and the indication information indicates that two consecutive time slots are used to transmit Msg3 within one uplink and downlink time slot period. Then the terminal determines the first time slot (ie, the start time slot) of Msg3 transmission according to the received downlink scheduling information (RA-RNTI scrambled DCI and RAR) and transmits two time slots continuously, and when the next uplink and downlink Msg3 is transmitted at the same slot position within the slot configuration period.

For example, if the initial transmission of the Msg3 fails, the system schedules the retransmission of the Msg3 and configures the parameters of the available time unit used in the initial transmission of the Msg3.

Optionally, before the terminal receives tdd-UL-DL-ConfigurationDedicated, the configuration result of the available time unit of the first information is always used.

Optionally, the uplink message after Msg3 (for example, HARQ process for Msg4) may use the uplink and downlink time slot configuration determined in the Msg3 phase to determine the uplink time slot, and send the uplink information. For example, after the transmission direction of each time slot and symbol in the current time slot configuration period is determined according to the indication information, the communication is performed according to the uplink and downlink configuration results determined in the Msg3 phase in the subsequent transmission process until a new time slot is received. configuration information.

Optionally, the available time unit is only valid in the current time unit configuration period, and for the next time unit configuration period, the terminal monitors the corresponding configuration information.

In the embodiment of the present application, the effective time of the available time unit is provided, which can effectively improve the efficiency of repeated PDSCH/PUSCH/PUCCH transmission.

The time unit determination method provided by the embodiment of the present application is not only applicable to the transmission of Msg3, but also to the transmission of messages such as PUCCH for HARQ-ACK of Msg4/MsgB, Msg2, MsgB, Msg4, etc.

Optionally, when the first information is Msg3, the terminal determines the available time unit, including:

According to the result of Msg2 scheduling or TC-RNTI scrambled DCI scheduling, determine the first time unit for Msg3 transmission, and update the corresponding time unit in the time unit configuration period as the uplink time unit, and use the same time unit in subsequent time unit configuration periods. The configuration result of , determines the available uplink time units in the corresponding period.

It is stipulated in the existing protocol that if a system message indicates that a certain time slot is flexible, the scheduled Msg3 can be transmitted on this time slot.

The valid time of the updated uplink time slot configuration result may last until the repeated transmission of Msg3 is completed, or when the new time slot configuration information takes effect.

Optionally, when the first information is Msg3, the terminal determines an available time unit based on a time unit configuration rule predefined by the protocol, including at least one of the following:

Updating the uplink time unit determined by the physical random access channel PRACH to the available time unit of the Msg3; optionally, if the Msg3 time-frequency resource collides with the PRACH time-frequency resource, it is an unavailable time unit;

It is stipulated in the existing protocol that if a certain flexible time slot or symbol is configured to transmit a sounding reference signal (Sounding reference signal, SRS), PUCCH, PUSCH or RACH, it is regarded as an uplink time slot or symbol.

In a carrier aggregation (Carrier Aggregation, CA) scenario, the time unit configuration result of the current cell is determined according to the time unit configuration result of other cells.

Optionally, if a certain time slot or symbol in the time unit configuration result of other cells is uplink, the time slot or symbol corresponding to this cell is also uplink.

Optionally, when the first information is PUCCH for HARQ-ACK of Msg4/MsgB, the terminal determines an available time unit, including at least one of the following:

Determine the uplink available time unit through the indication information of the available time unit carried in the Msg4/MsgB PDSCH or the PDCCH of the scheduled Msg4/MsgB;

Determine the current time according to the configuration result of the available uplink time unit corresponding to the Msg3 repeated transmission, or according to the configuration result of the random access occasion (PRACH occasion, RO) resource of the random access channel RACH, or according to the uplink and downlink configuration results of other cells Available uplink time units within the unit configuration period.

That is, the available uplink time slots of the PUCCH for HARQ-ACK of Msg4/MsgB can be displayed and configured through the Msg4/MsgBPDSCH or the PDCCH scheduling Msg4/MsgB. That is, the indication information of the corresponding available uplink time slot is carried when the contention resolution message is sent.

The available uplink time slots of PUCCH for HARQ-ACK of Msg4/MsgB can also be implicitly configured. If Msg3 is repeatedly transmitted and an available uplink time slot is configured, or according to the configuration result of the RO resource of the RACH or the uplink and downlink configuration results of other cells, determine the (PUCCH) available uplink time slot in the current time slot configuration period.

Optionally, when the first information is Msg2, MsgB or Msg4, the terminal determines the available time unit, including:

The available downlink time unit is determined according to the time unit of SSB or CORESET#0.

Optionally, the network side device sends DCI for scheduling PDSCH of Msg2/MsgB/Msg4. The DCI includes the number of times the PDSCH of Msg2/MsgB/Msg4 is repeatedly sent and the available downlink time slots. The repetition times of the PDSCH may be indicated by a field of the DCI explicitly, or indicated jointly after being associated with the TDRA information, or specified by a protocol or configured by a system message.

Optionally, for the implicit mode, the terminal may determine the downlink time slot according to the time slot of the SSB or the time slot of CORESET#0. If it is an indication method based on symbol or time slot granularity, modify it to downlink symbols or time slots as available downlink transmission resources or a part of available downlink transmission resources (it may also include static/semi-static downlink symbols and time slots indicated by RRC signaling). gap). The possible transmission resources or time slots are determined according to the PDSCH repetition rule (eg, the repetition transmission rule defined in the NR).

In the embodiment of the present application, when the user-level time unit configuration information cannot be obtained, the terminal determines the available time unit, so that the terminal and the network measurement device in the disconnected state have the same time unit for repeatedly sending PDSCH/PUSCH/PUCCH It is understood that the repeated transmission of PDSCH/PUSCH/PUCCH is guaranteed to be successful.

FIG. 3 is a second schematic flowchart of a method for determining a time unit provided by an embodiment of the present application. As shown in Figure 3, the method includes the following steps:

Step 300: The network side device sends downlink signaling to the terminal, where the downlink signaling carries indication information of available time units;

Wherein, the available time unit is used for transmission of the first information; the transmission of the first information occupies multiple time units of the available time unit;

Wherein, the downlink signaling includes at least one of the following: downlink control information DCI, system messages, and high-level signaling; the downlink signaling is carried in at least one of the following: physical downlink control channel PDCCH, physical downlink shared channel PDSCH.

Optionally, the terminal in the limited coverage area sends Msg1 (the parameters of the Msg1 may be the same as the parameters of the existing protocol, or the parameters newly defined for the repeated transmission function of Msg3). The network side device detects Msg1 and configures the terminal for repeated transmission of Msg3 according to the signal quality of Msg1.

In an implementation manner, the downlink signaling may be scheduling signaling of first information transmission, the scheduling signaling of the first information transmission carries indication information of available time units, and the scheduling signaling is carried on the PDCCH or PDSCH.

In an embodiment, the downlink signaling may be higher layer signaling, such as RRC signaling, tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-Configuration Dedicated. The indication information of the available time unit is carried in the RRC signaling.

In an implementation manner, the downlink signaling may be a system message. The indication information of the available time unit is carried in the system message.

Optionally, the downlink signaling is higher layer signaling or a combination of system messages and physical layer signaling. The high-layer signaling or system message contains a variety of optional available time unit configuration information, and the available time unit configuration information is dynamically indicated through physical layer signaling.

Optionally, the indication information of the available time unit may explicitly indicate the available time unit configuration information, or implicitly indicate the available time unit configuration information.

The available time unit configuration information includes at least one of the following:

a time unit within a time unit configuration period that can be used to transmit the first information;

the transmission direction of the time unit that can be used to transmit the first information within a time unit configuration period;

The transmission direction of flexible slots/symbols within a time unit configuration period.

The time unit configuration period may be a cycle period of upper and lower time slots defined by the network device.

Optionally, the indication information of the available time unit is used to display or implicitly indicate at least one of the following: a time unit within a time unit configuration period that can be used to transmit the first information, and a time unit within a time unit configuration period that can be used to transmit the first information. The transmission direction of the time unit for transmitting the first information, where the time unit configures the transmission direction of the flexible time slot/symbol within the period.

Optionally, the implicitly indicated available time unit may be determined by the first transmission time slot of the first information.

In this embodiment of the present application, the network side device sends downlink signaling carrying indication information of the available time unit to the terminal, so that the terminal determines the available time unit for transmission of the first information based on the indication information of the available time unit, which can be This enables the terminal and the network measurement device to have a consistent understanding of the time unit for repeatedly transmitting PDSCH/PUSCH/PUCCH in a disconnected state, ensuring successful repeated PDSCH/PUSCH/PUCCH transmission and improving transmission efficiency.

Optionally, the first information includes at least one of the following:

message 3 Msg3;

The physical uplink control channel PUCCH for HARQ-ACK of Msg4/MsgB carrying the hybrid automatic retransmission response of message 4 or message B;

message 2 Msg2;

messageB MsgB;

Message 4 Msg4.

Optionally, the network side device sends downlink signaling to the terminal, including at least one of the following:

The network side device sends the PDDCH to the terminal, and indicates the indication information of the available time unit through the fixed field of the downlink control information DCI carried in the PDCCH;

The network side device sends the PDSCH to the terminal, and the available time unit indication information is represented by the first content carried in the PDSCH.

It can be understood that, in an embodiment, the downlink signaling is carried on the PDCCH, and the fixed field of the downlink control information DCI carried in the PDCCH is used to indicate the available time unit configuration information.

Optionally, the indication information of the available time unit represented by the fixed field of the downlink control information DCI carried in the PDCCH includes at least one of the following:

For the initial transmission of the first information, the indication information of the available time unit is represented by a fixed field in the first DCI scrambled by the random access wireless network temporary identifier RA-RNTI carried in the PDCCH;

For the transmission or repeated transmission of the first information, the indication information of the available time unit is represented by a fixed field in the second DCI scrambled by the temporary cell radio network temporary identifier TC-RNTI carried in the PDCCH.

Optionally, the PDCCH may carry DCI 1_0 scrambled with RA-RNTI for the initial transmission of Msg3 or Msg2, DCI 0_0 scrambled with TC-RNTI for Msg3 retransmission, DCI 0_0 scrambled with TC-RNTI for Msg4 transmission, Or the newly defined DCI in the disconnected state.

Optionally, the first DCI is DCI 1_0, and the second DCI is DCI 0_0.

Optionally, for the initial transmission of the first information, the fixed field in the first DCI scrambled by the random access wireless network temporary identifier RA-RNTI carried in the PDCCH is used to indicate the available time unit configuration information.

For example, for Msg3 initial transmission (initial transmission), the fixed field in DCI 1_0 scrambled by RA-RNTI is used to indicate the configuration information of available uplink time slots.

Optionally, for the transmission or repeated transmission of the first information, an available time unit is determined according to a fixed field in the second DCI scrambled by the temporary cell wireless network temporary identifier TC-RNTI carried in the PDCCH.

For example, for Msg3 retransmission (repeated transmission), the fixed field in DCI 0_0 scrambled by the TC-RNTI is used to indicate configuration information of available uplink time slots.

For example, for Msg4 transmission, the fixed field in DCI 0_0 scrambled by the TC-RNTI is used to indicate the configuration information of available uplink time slots.

In an embodiment, the downlink signaling is carried on the PDSCH, and the first content carried in the PDSCH is used as the indication information of the available time unit, that is, the first content carried in the PDSCH is used to indicate the configuration information of the available time unit.

Optionally, the available time unit indication information represented by the first content carried in the PDSCH includes at least one of the following:

For the initial transmission of the first information, the available time unit indication information is indicated by the random access response RAR of the message 2 in the first format carried in the PDSCH;

For the transmission of the first information, the available time unit indication information is represented by the message 4Msg4 in the second format carried in the PDSCH;

Wherein, the Msg2 RAR in the first format is obtained by compressing some fields in the RAR uplink UL grant or redefining some fields in the RAR UL grant;

Wherein, the Msg4 in the second format is obtained through the fixed fields included in the Msg4.

Optionally, for the initial transmission of Msg3, the Msg2 RAR PDSCH uses a new format, compresses some fields in the RAR UL grant, and uses the compressed fields to carry the indication information of the available time unit, or compresses the fields in the RAR UL grant. Redefine it to add the ability to indicate available time units. Specifically, for example, a corresponding parameter definition is added to the TDRA field or the TPC field, and an available uplink time slot is also indicated when the TDRA or TPC information is indicated.

Optionally, for the transmission of Msg4, the fixed field included in the Msg4 is used to carry the indication information of the available time unit.

In the embodiment of the present application, a possible implementation manner of the indication information of the available time unit carried/carried in the scheduling signaling is provided, so that the terminal and the network measurement device in the disconnected state can repeatedly send the time unit of PDSCH/PUSCH/PUCCH Have a consistent understanding to ensure that PDSCH/PUSCH/PUCCH repeated transmissions are successful.

Optionally, the indication information of the available time unit satisfies at least one of the following:

The indication information of the available time unit indicates that the first time unit of the first information transmission starts from the first time unit, and consecutive x time units are all available time units, where x is predefined by a protocol or configured by a system message or indicated by the indication information;

The indication information of the available time unit indicates one of multiple candidate uplink and downlink configuration combinations, and the multiple candidate uplink and downlink configuration combinations are predefined by the protocol or configured by system messages or high-layer signaling;

The indication information of the available time unit indicates in the form of a bitmap bitmap the transmission direction of the first time unit of the first information transmission starting from the subsequent y time units, or the transmission direction of all flexible time units, or a complete time unit. Configure the transmission direction of all time units within the configuration period;

The indication information of the available time unit includes a time unit format, where the time unit format is used to indicate the transmission direction of the flexible time unit configured by the network side device;

where x and y are positive integers.

It can be understood that the indication information of the available time unit has the following possible expressions or contents:

Indicating that the first time unit of the first information transmission starts from the first time unit, the consecutive y time units are all available time units, wherein y is predefined by the protocol or configured by the system message or indicated by the indication information;

Or, indicate one of multiple candidate uplink and downlink configuration combinations:

One of the uplink and downlink configuration combinations is an n-bit sequence, and the value of each bit represents the transmission direction of the corresponding time unit within a time unit configuration period.

Wherein, the time unit corresponding to the first bit of the n-bit sequence is one of the following:

The starting time unit of a time unit configuration period;

the xth time unit after the time unit where the physical channel carrying the indication information of the available time unit is located;

scheduling the first time unit of the first information transmission;

A time unit determined based on other reference time unit determination methods;

where x is a positive integer.

Or, in the form of a bitmap, indicating the first time unit of the first information transmission to start the transmission direction of the subsequent z time units, or the transmission direction of all flexible time units, or all time units within a complete time unit configuration period direction of transmission;

Or, the time unit format is indicated according to the format of the uplink and downlink time slot configuration in the system message. For example, the indication information of the available time unit respectively indicates the number of downlink time units and the number of uplink time units in one time unit configuration period. The available time unit is determined according to the uplink and downlink time unit configuration rules defined by the protocol.

Optionally, the role of the indication information may be to directly indicate the position of the available time unit; or to indicate the uplink and downlink transmission directions of subsequent time units, and the time unit that is the same as the first information transmission direction is the available time unit.

In the embodiment of the present application, a possible implementation of the indication information of the available time unit is provided, so that the terminal and the network measurement device in the disconnected state have a consistent understanding of the time unit for repeatedly sending PDSCH/PUSCH/PUCCH, ensuring that the PDSCH/PUSCH/PUCCH is repeatedly sent. PUSCH/PUCCH repeated transmission is successful.

Optionally, the valid time of the available time unit includes at least one of the following:

During the period of repeated transmission of the first information, the repeated transmission of the first information is performed according to the available time unit indicated by the initial transmission of the first information, and the repeated transmission of the first information is performed at the same time unit position in the next time unit configuration period. The first information is transmitted, and after the repeated transmission of the first information is completed, the configuration of the available time unit is invalid;

Before entering the connection state to obtain the indication information of the new available time unit, use the available time unit configuration result of the first information;

It is only valid in the current time unit configuration period, wherein, for the next time unit configuration period, the terminal monitors the corresponding configuration information.

Optionally, the Msg3 retransmission also uses the configuration of the uplink and downlink time slots configured during the initial transmission of the Msg3, that is, the retransmission operation of the repeated transmission of the Msg3 is performed according to the available uplink time slots indicated by the initial transmission of the Msg3.

Optionally, after the repeated transmission of the first information is completed, the operation is restored to the time slot configuration configured by the RRC.

For example, the system schedules the transmission of Msg3 to be repeated four times, and the indication information indicates that two consecutive time slots are used to transmit Msg3 within one uplink and downlink time slot period. Then the terminal determines the first time slot (ie, the start time slot) of Msg3 transmission according to the received downlink scheduling information (RA-RNTI scrambled DCI and RAR) and transmits two time slots continuously, and when the next uplink and downlink Msg3 is transmitted at the same slot position within the slot configuration period.

For example, if the initial transmission of the Msg3 fails, the system schedules the retransmission of the Msg3 and configures the parameters of the available time unit used in the initial transmission of the Msg3.

Optionally, before the terminal receives tdd-UL-DL-ConfigurationDedicated, the configuration result of the available time unit of the first information is always used.

Optionally, the uplink message after Msg3 (for example, HARQ process for Msg4) may use the uplink and downlink time slot configuration determined in the Msg3 phase to determine the uplink time slot, and send the uplink information. For example, after the transmission direction of each time slot and symbol in the current time slot configuration period is determined according to the indication information, the communication is performed according to the uplink and downlink configuration results determined in the Msg3 phase in the subsequent transmission process until a new time slot is received. configuration information.

Optionally, the available time unit is only valid in the current time unit configuration period, and for the next time unit configuration period, the terminal monitors the corresponding configuration information.

In the embodiment of the present application, in the case where the terminal cannot obtain the configuration information of the user-level time unit, the network side device provides the terminal with the valid time of the available time unit, so that the terminal and the network measurement device in the disconnected state can repeatedly send PDSCH/PUSCH The time unit of /PUCCH has a consistent understanding to ensure successful repeated transmission of PDSCH/PUSCH/PUCCH.

It should be noted that, in the method for determining a time unit provided by the embodiment of the present application, the execution subject may be a device for determining a time unit, or a control module in the device for determining a time unit for executing the method for determining a time unit. In the embodiment of the present application, the time unit determining device provided by the embodiment of the present application is described by taking the time unit determining device executing the time unit determining method as an example.

FIG. 4 is one of the schematic structural diagrams of the device for determining a time unit provided by an embodiment of the present application. As shown in FIG. 4 , the device includes:

a first determining unit 410, configured to determine an available time unit;

Wherein, the available time unit is used for transmission of the first information; the transmission of the first information occupies multiple time units of the available time unit.

In this embodiment of the present application, in the case where the user-level time unit configuration information cannot be obtained, by determining an available time unit for the transmission of the first information, the transmission of the first information occupies a plurality of the available time units The time unit can make the terminal and the network measurement device in the disconnected state have a consistent understanding of the time unit for repeatedly sending PDSCH/PUSCH/PUCCH, and ensure that the repeated PDSCH/PUSCH/PUCCH transmission is successful.

Optionally, the first determining unit is used for:

Receive the downlink signaling sent by the network side device, and determine the available time unit according to the indication information of the available time unit carried in the downlink signaling; or,

Determine the available time unit based on the time unit configuration rules predefined by the protocol;

Wherein, the downlink signaling includes at least one of the following: downlink control information DCI, system messages, and high-level signaling; the downlink signaling is carried in at least one of the following: physical downlink control channel PDCCH, physical downlink shared channel PDSCH.

Optionally, determining the available time unit according to the indication information of the available time unit carried in the downlink signaling includes at least one of the following:

In the case that the downlink signaling is carried on the PDCCH, the available time unit is determined according to the fixed field of the downlink control information DCI carried in the PDCCH;

When the downlink signaling is carried on the PDSCH, the available time unit is determined according to the first content carried in the PDSCH.

Optionally, determining the available time unit according to the fixed field of the downlink control information DCI carried in the PDCCH includes at least one of the following:

For the initial transmission of the first information, the available time unit is determined according to the fixed field in the first DCI scrambled by the random access wireless network temporary identifier RA-RNTI carried in the PDCCH;

For the transmission or repeated transmission of the first information, the available time unit is determined according to the fixed field in the second DCI scrambled by the temporary cell radio network temporary identifier TC-RNTI carried in the PDCCH.

Optionally, the determining an available time unit according to the first content carried in the PDSCH includes at least one of the following:

For the initial transmission of the first information, the available time unit is determined according to the random access response RAR of the message 2 Msg2 in the first format carried in the PDSCH;

For the transmission of the first information, the available time unit is determined according to the message 4Msg4 of the second format carried in the PDSCH;

Wherein, the Msg2 RAR in the first format is obtained by compressing some fields in the RAR uplink UL grant or redefining some fields in the RAR UL grant;

Wherein, the Msg4 in the second format is obtained through the fixed fields included in the Msg4.

Optionally, the indication information of the available time unit satisfies at least one of the following:

The indication information of the available time unit indicates that the first time unit of the first information transmission starts from the first time unit, and consecutive x time units are all available time units, where x is predefined by a protocol or configured by a system message or indicated by the indication information;

The indication information of the available time unit indicates one of multiple candidate uplink and downlink configuration combinations, and the multiple candidate uplink and downlink configuration combinations are predefined by the protocol or configured by system messages or high-layer signaling;

The indication information of the available time unit indicates in the form of a bitmap bitmap the transmission direction of the first time unit of the first information transmission starting from the subsequent y time units, or the transmission direction of all flexible time units, or a complete time unit. Configure the transmission direction of all time units within the configuration period;

The indication information of the available time unit includes a time unit format, where the time unit format is used to indicate the transmission direction of the flexible time unit configured by the network side device;

where x and y are positive integers.

Optionally, the first determining unit is further configured to:

In the case where there is a conflict between the indication information of the available time unit and the transmission direction of the time unit configured by the network side device, determine the transmission direction of the conflicting time unit according to a preset rule;

Wherein, the preset rules include at least one of the following:

If the uplink/downlink time unit indicated by the indication information includes the downlink/uplink time unit configured by the RRC, the indication information is invalid;

The time unit in which the collision occurs determines the transmission direction according to the RRC configuration;

If the time unit indicated by the indication information conflicts with the time unit where the synchronization signal block SSB or the control resource set CORESET#0 is located, the indication information is invalid, or the time unit where the SSB or CORESET#0 is located is not affected by the indication information;

If the time unit indicated by the indication information is configured as a flexible time unit in the RRC, the time unit is determined to be an available time unit.

Optionally, the valid time of the available time unit includes at least one of the following:

During the period of repeated transmission of the first information, the repeated transmission of the first information is performed according to the available time unit indicated by the initial transmission of the first information, and the repeated transmission of the first information is performed at the same time unit position in the next time unit configuration period. The first information is transmitted, and after the repeated transmission of the first information is completed, the configuration of the available time unit is invalid;

Before entering the connected state to obtain the indication information of the new uplink and downlink time slot configuration, use the available time unit configuration result of the first information;

It is only valid in the current time unit configuration period, wherein, for the next time unit configuration period, the corresponding configuration information is monitored.

Optionally, the first information includes at least one of the following:

message 3 Msg3;

The physical uplink control channel PUCCH for HARQ-ACK of Msg4/MsgB carrying the hybrid automatic retransmission response of message 4 or message B;

message 2 Msg2;

messageB MsgB;

Message 4 Msg4.

Optionally, when the first information is Msg3, the first determining unit is used for:

According to the result of Msg2 scheduling or TC-RNTI scrambled DCI scheduling, determine the first time unit for Msg3 transmission, and update the corresponding time unit in the time unit configuration period as the uplink time unit, and use the same time unit in subsequent time unit configuration periods. The configuration result of , determines the available uplink time units in the corresponding period.

Optionally, in the case where the first information is Msg3, the available time unit is determined based on the time unit configuration rule predefined by the protocol, including at least one of the following:

updating the uplink time unit determined by the physical random access channel PRACH to the available time unit of the Msg3;

In the carrier aggregation CA scenario, the time unit configuration result of the current cell is determined according to the time unit configuration result of other cells.

Optionally, when the first information is PUCCH for HARQ-ACK of Msg4/MsgB, the first determining unit is configured to perform at least one of the following:

Determine the uplink available time unit through the indication information of the available time unit carried in the Msg4/MsgB PDSCH or the PDCCH of the scheduled Msg4/MsgB;

According to the configuration result of the available uplink time unit corresponding to Msg3 repeated transmission, or according to the configuration result of the random access opportunity RO resource of the random access channel RACH, or according to the uplink and downlink configuration results of other cells, determine the current time unit configuration period. Available uplink time units.

Optionally, when the first information is Msg2, MsgB or Msg4, the first determining unit is used for:

The available downlink time unit is determined according to the time unit of SSB or CORESET#0.

In the embodiment of the present application, when the user-level time unit configuration information cannot be obtained, the available time unit is determined, so that the terminal and the network measurement device in the disconnected state have a consistent understanding of the time unit for repeatedly sending PDSCH/PUSCH/PUCCH , to ensure that the PDSCH/PUSCH/PUCCH repeated transmission is successful.

The apparatus for determining a time unit in this embodiment of the present application may be an apparatus, an apparatus having an operating system or an electronic device, and may also be a component, an integrated circuit, or a chip in a terminal. The apparatus or electronic device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.

The apparatus for determining a time unit provided in this embodiment of the present application can implement each process implemented by the method embodiment in FIG. 2 , and achieve the same technical effect. To avoid repetition, details are not described here.

FIG. 5 is a second schematic structural diagram of an apparatus for determining a time unit provided by an embodiment of the present application. As shown in Figure 5, the device includes:

a first sending unit 510, configured to send downlink signaling to the terminal, where the downlink signaling carries indication information of available time units;

Wherein, the available time unit is used for transmission of the first information; the transmission of the first information occupies multiple time units of the available time unit;

Wherein, the downlink signaling includes at least one of the following: downlink control information DCI, system messages, and high-level signaling; the downlink signaling is carried in at least one of the following: physical downlink control channel PDCCH, physical downlink shared channel PDSCH.

In this embodiment of the present application, by sending the downlink signaling carrying the indication information of the available time unit to the terminal, so that the terminal determines the available time unit for transmission of the first information based on the indication information of the available time unit, so that the non- In the connected state, the terminal and the network measurement device have a consistent understanding of the time unit for repeated PDSCH/PUSCH/PUCCH transmission, ensuring that the PDSCH/PUSCH/PUCCH repeated transmission is successful.

Optionally, the first sending unit is configured to perform at least one of the following:

Send the PDDCH to the terminal, and indicate the indication information of the available time unit through the fixed field of the downlink control information DCI carried in the PDCCH;

The PDSCH is sent to the terminal, and the available time unit indication information is represented by the first content carried in the PDSCH.

Optionally, the indication information of the available time unit represented by the fixed field of the downlink control information DCI carried in the PDCCH includes:

For the initial transmission of the first information, the indication information of the available time unit is represented by a fixed field in the first DCI scrambled by the random access wireless network temporary identifier RA-RNTI carried in the PDCCH;

For the transmission or repeated transmission of the first information, the indication information of the available time unit is represented by a fixed field in the second DCI scrambled by the temporary cell radio network temporary identifier TC-RNTI carried in the PDCCH.

Optionally, the indication information of the available time unit represented by the first content carried in the PDSCH includes:

For the initial transmission of the first information, the available time unit indication information is indicated by the random access response RAR of the message 2 Msg2 in the first format carried in the PDSCH;

For the transmission of the first information, the available time unit indication information is represented by the message 4Msg4 in the second format carried in the PDSCH;

Wherein, the Msg2 RAR in the first format is obtained by compressing some fields in the RAR uplink UL grant or redefining some fields in the RAR UL grant;

Wherein, the Msg4 in the second format is obtained through the fixed fields included in the Msg4.

Optionally, the indication information of the available time unit satisfies at least one of the following:

The indication information of the available time unit indicates that the first time unit of the first information transmission starts from the first time unit, and consecutive x time units are all available time units, where x is predefined by a protocol or configured by a system message or indicated by the indication information;

The indication information of the available time unit indicates one of multiple candidate uplink and downlink configuration combinations, and the multiple candidate uplink and downlink configuration combinations are predefined by the protocol or configured by system messages or high-layer signaling;

The indication information of the available time unit indicates in the form of a bitmap bitmap the transmission direction of the first time unit of the first information transmission starting from the subsequent y time units, or the transmission direction of all flexible time units, or a complete time unit. Configure the transmission direction of all time units within the configuration period;

The indication information of the available time unit includes a time unit format, where the time unit format is used to indicate the transmission direction of the flexible time unit configured by the network side device;

where x and y are positive integers.

Optionally, the valid time of the available time unit includes at least one of the following:

During the period of repeated transmission of the first information, the repeated transmission of the first information is performed according to the available time unit indicated by the initial transmission of the first information, and the repeated transmission of the first information is performed at the same time unit position in the next time unit configuration period. The first information is transmitted, and after the repeated transmission of the first information is completed, the configuration of the available time unit is invalid;

Before entering the connection state to obtain the indication information of the new available time unit, use the available time unit configuration result of the first information;

It is only valid in the current time unit configuration period, wherein, for the next time unit configuration period, the terminal monitors the corresponding configuration information.

Optionally, the first information includes at least one of the following:

message 3 Msg3;

The physical uplink control channel PUCCH for HARQ-ACK of Msg4/MsgB carrying the hybrid automatic retransmission response of message 4 or message B;

message 2 Msg2;

messageB MsgB;

Message 4 Msg4.

In the embodiment of the present application, in the case where the terminal cannot obtain the configuration information of the user-level time unit, the terminal and the network measurement device in the disconnected state can repeatedly send PDSCH/PUSCH/PUCCH by providing the terminal with the valid time of the available time unit. The time unit has a consistent understanding to ensure successful PDSCH/PUSCH/PUCCH repeated transmission.

The apparatus for determining a time unit in this embodiment of the present application may be an apparatus, an apparatus having an operating system or an electronic device, and may also be a component, an integrated circuit, or a chip in a terminal. The apparatus or electronic device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.

The apparatus for determining a time unit provided in this embodiment of the present application can implement each process implemented by the method embodiment in FIG. 3 , and achieve the same technical effect. To avoid repetition, details are not described here.

Optionally, as shown in FIG. 6 , an embodiment of the present application further provides a communication device 600, including a processor 601, a memory 602, a program or instruction stored in the memory 602 and executable on the processor 601, For example, when the communication device 600 is a terminal, when the program or instruction is executed by the processor 601, each process of the above-mentioned time unit determination method embodiment is implemented, and the same technical effect can be achieved. When the communication device 600 is a network-side device, when the program or instruction is executed by the processor 601, each process of the above-mentioned time unit determination method embodiment can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not described here.

An embodiment of the present application further provides a terminal, including a processor and a communication interface, wherein the processor is used to determine an available time unit; wherein, the available time unit is used for transmission of first information; The transmission occupies a plurality of time units of the available time units. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect. Specifically, FIG. 7 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.

The terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710, etc. at least part of the components.

Those skilled in the art can understand that the terminal 700 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 710 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions. The terminal structure shown in FIG. 7 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.

It should be understood that, in this embodiment of the present application, the input unit 704 may include a graphics processor (Graphics Processing Unit, GPU) 7041 and a microphone 7042. camera) to process the image data of still pictures or videos. The display unit 706 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 707 includes a touch panel 7071 and other input devices 7072 . The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts, a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.

In the embodiment of the present application, the radio frequency unit 701 receives the downlink data from the network side device, and then processes it to the processor 710; in addition, sends the uplink data to the network side device. Generally, the radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 709 may be used to store software programs or instructions as well as various data. The memory 709 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like. In addition, the memory 709 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. For example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

The processor 710 may include one or more processing units; optionally, the processor 710 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 710.

a processor 710, configured to determine an available time unit;

Wherein, the available time unit is used for transmission of the first information; the transmission of the first information occupies multiple time units of the available time unit.

In this embodiment of the present application, the terminal determines an available time unit for transmission of the first information, and the transmission of the first information occupies multiple time units of the available time unit, so that the terminal and the network in the disconnected state can be connected The test equipment has a consistent understanding of the time unit for repeated PDSCH/PUSCH/PUCCH transmission, ensuring that the PDSCH/PUSCH/PUCCH repeated transmission is successful.

Optionally, the processor 710 is further configured to receive downlink signaling sent by the network side device, and determine the available time unit according to the indication information of the available time unit carried in the downlink signaling; or,

Determine the available time unit based on the time unit configuration rules predefined by the protocol;

Wherein, the downlink signaling includes at least one of the following: downlink control information DCI, system messages, and high-level signaling; the downlink signaling is carried in at least one of the following: physical downlink control channel PDCCH, physical downlink shared channel PDSCH.

In this embodiment of the present application, the terminal determines an available time unit for transmission of the first information based on downlink signaling sent by the network side device or a time unit configuration rule predefined by the protocol, and the transmission of the first information occupies the The multiple time units of the available time unit can enable the terminal and the network measurement device in the disconnected state to have a consistent understanding of the time unit for repeated PDSCH/PUSCH/PUCCH transmission, ensuring that the PDSCH/PUSCH/PUCCH repeated transmission is successful.

Optionally, determining the available time unit according to the indication information of the available time unit carried in the downlink signaling includes at least one of the following:

In the case that the downlink signaling is carried on the PDCCH, the available time unit is determined according to the fixed field of the downlink control information DCI carried in the PDCCH;

When the downlink signaling is carried on the PDSCH, the available time unit is determined according to the first content carried in the PDSCH.

Optionally, determining the available time unit according to the fixed field of the downlink control information DCI carried in the PDCCH includes at least one of the following:

For the initial transmission of the first information, the available time unit is determined according to the fixed field in the first DCI scrambled by the random access wireless network temporary identifier RA-RNTI carried in the PDCCH;

For the transmission or repeated transmission of the first information, the available time unit is determined according to the fixed field in the second DCI scrambled by the temporary cell radio network temporary identifier TC-RNTI carried in the PDCCH.

Optionally, the determining an available time unit according to the first content carried in the PDSCH includes at least one of the following:

For the initial transmission of the first information, the available time unit is determined according to the random access response RAR of the message 2 Msg2 in the first format carried in the PDSCH;

For the transmission of the first information, the available time unit is determined according to the message 4Msg4 of the second format carried in the PDSCH;

Wherein, the Msg2 RAR in the first format is obtained by compressing some fields in the RAR uplink UL grant or redefining some fields in the RAR UL grant;

Wherein, the Msg4 in the second format is obtained through the fixed fields included in the Msg4.

In the embodiment of the present application, a possible implementation manner of the indication information of the available time unit carried/carried in the scheduling signaling is provided, and the terminal determines the available time unit for transmission of the first information by acquiring the information of the corresponding field in the scheduling signaling. Time unit, the transmission of the first information occupies multiple time units of the available time unit, so that the terminal and the network measurement device in the disconnected state have a consistent understanding of the time unit for repeatedly sending PDSCH/PUSCH/PUCCH, ensuring that PDSCH/PUSCH/PUCCH repeated transmission is successful.

Optionally, the indication information of the available time unit satisfies at least one of the following:

The indication information of the available time unit indicates that the first time unit of the first information transmission starts from the first time unit, and consecutive x time units are all available time units, where x is predefined by a protocol or configured by a system message or indicated by the indication information;

The indication information of the available time unit indicates one of multiple candidate uplink and downlink configuration combinations, and the multiple candidate uplink and downlink configuration combinations are predefined by protocols or configured by system messages or by high-layer signaling;

The indication information of the available time unit indicates in the form of a bitmap bitmap the transmission direction of the first time unit of the first information transmission starting from the subsequent y time units, or the transmission direction of all flexible time units, or a complete time unit. Configure the transmission direction of all time units within the configuration period;

The indication information of the available time unit includes a time unit format, where the time unit format is used to indicate the transmission direction of the flexible time unit configured by the network side device;

where x and y are positive integers.

In this embodiment of the present application, a possible expression form of the indication information of the available time unit is provided, and the terminal determines the available time unit for transmission of the first information by acquiring the indication information of the available time unit, and the transmission of the first information Occupying multiple time units of the available time unit can make the terminal and the network measurement device in the disconnected state have a consistent understanding of the time unit for repeatedly sending PDSCH/PUSCH/PUCCH, and ensure that the repeated PDSCH/PUSCH/PUCCH transmission is successful.

Optionally, the processor 710 is further configured to:

In the case where there is a conflict between the indication information of the available time unit and the transmission direction of the time unit configured by the network side device, determine the transmission direction of the conflicting time unit according to a preset rule;

Wherein, the preset rules include at least one of the following:

If the uplink/downlink time unit indicated by the indication information includes the downlink/uplink time unit configured by the RRC, the indication information is invalid;

The time unit in which the collision occurs determines the transmission direction according to the RRC configuration;

If the time unit indicated by the indication information conflicts with the time unit where the synchronization signal block SSB or the control resource set CORESET#0 is located, the indication information is invalid, or the time unit where the SSB or CORESET#0 is located is not affected by the indication information;

If the time unit indicated by the indication information is configured as a flexible time unit in the RRC, the time unit is determined to be an available time unit.

In the embodiment of the present application, a solution is provided in the case where there is a conflict between the indication information of the available time unit and the transmission direction of the time unit configured by the network side device, which can effectively improve the efficiency of PDSCH/PUSCH/PUCCH repeated transmission .

Optionally, the valid time of the available time unit includes at least one of the following:

During the period of repeated transmission of the first information, the repeated transmission of the first information is performed according to the available time unit indicated by the initial transmission of the first information, and the repeated transmission of the first information is performed at the same time unit position in the next time unit configuration period. The first information is transmitted, and after the repeated transmission of the first information is completed, the configuration of the available time unit is invalid;

Before entering the connected state to obtain the indication information of the new uplink and downlink time slot configuration, use the available time unit configuration result of the first information;

It is only valid in the current time unit configuration period, wherein, for the next time unit configuration period, the corresponding configuration information is monitored.

Optionally, the first information includes at least one of the following:

message 3 Msg3;

The physical uplink control channel PUCCH for HARQ-ACK of Msg4/MsgB carrying the hybrid automatic retransmission response of message 4 or message B;

message 2 Msg2;

messageB MsgB;

Message 4 Msg4.

Optionally, when the first information is Msg3, the processor 710 is further configured to:

According to the result of Msg2 scheduling or TC-RNTI scrambled DCI scheduling, determine the first time unit for Msg3 transmission, and update the corresponding time unit in the time unit configuration period as the uplink time unit, and use the same time unit in subsequent time unit configuration periods. The configuration result of , determines the available uplink time units in the corresponding period.

Optionally, in the case where the first information is Msg3, the available time unit is determined based on the time unit configuration rule predefined by the protocol, including at least one of the following:

updating the uplink time unit determined by the physical random access channel PRACH to the available time unit of the Msg3;

In the carrier aggregation CA scenario, the time unit configuration result of the current cell is determined according to the time unit configuration result of other cells.

Optionally, when the first information is PUCCH for HARQ-ACK of Msg4/MsgB, the processor 710 is further configured to perform at least one of the following:

Determine the uplink available time unit through the indication information of the available time unit carried in the Msg4/MsgB PDSCH or the PDCCH of the scheduled Msg4/MsgB;

According to the configuration result of the available uplink time unit corresponding to Msg3 repeated transmission, or according to the configuration result of the random access opportunity RO resource of the random access channel RACH, or according to the uplink and downlink configuration results of other cells, determine the current time unit configuration period. Available uplink time units.

Optionally, when the first information is Msg2, MsgB or Msg4, the processor 710 is further configured to:

The available downlink time unit is determined according to the time unit of SSB or CORESET#0.

In the embodiment of the present application, when the user-level time unit configuration information cannot be obtained, the terminal determines the available time unit, so that the terminal and the network measurement device in the disconnected state have the same time unit for repeatedly sending PDSCH/PUSCH/PUCCH It is understood that the repeated transmission of PDSCH/PUSCH/PUCCH is guaranteed to be successful.

An embodiment of the present application further provides a network-side device, including a processor and a communication interface, wherein the communication interface is used to send downlink signaling to a terminal, and the downlink signaling carries indication information of available time units; wherein, The available time unit is used for transmission of the first information; the transmission of the first information occupies multiple time units of the available time unit; wherein, the downlink signaling includes at least one of the following: downlink control information DCI, System message, high-level signaling; the downlink signaling is carried in at least one of the following: physical downlink control channel PDCCH, physical downlink shared channel PDSCH. This network-side device embodiment corresponds to the above-mentioned network-side device method embodiment, and each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.

Specifically, an embodiment of the present application further provides a network side device. As shown in FIG. 8 , the network device 800 includes: an antenna 801 , a radio frequency device 802 , and a baseband device 803 . The antenna 801 is connected to the radio frequency device 802 . In the uplink direction, the radio frequency device 802 receives information through the antenna 801, and sends the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes the information to be sent and sends it to the radio frequency device 802 , and the radio frequency device 802 processes the received information and sends it out through the antenna 801 .

The above-mentioned frequency band processing apparatus may be located in the baseband apparatus 803 , and the method performed by the network side device in the above embodiments may be implemented in the baseband apparatus 803 . The baseband apparatus 803 includes a processor 804 and a memory 805 .

The baseband device 803 may include, for example, at least one baseband board on which multiple chips are arranged. As shown in FIG. 8 , one of the chips is, for example, the processor 804 , which is connected to the memory 805 to call the program in the memory 805 to execute The network devices shown in the above method embodiments operate.

The baseband device 803 may further include a network interface 806 for exchanging information with the radio frequency device 802 , and the interface is, for example, a common public radio interface (CPRI for short).

Specifically, the network-side device in the embodiment of the present invention further includes: instructions or programs stored in the memory 805 and executable on the processor 804, and the processor 804 invokes the instructions or programs in the memory 805 to execute the modules shown in FIG. 5 . The implementation method and achieve the same technical effect, in order to avoid repetition, it is not repeated here.

Embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the above-mentioned time unit determination method embodiment can be achieved, and can achieve The same technical effect, in order to avoid repetition, will not be repeated here.

Wherein, the processor is the processor in the terminal described in the foregoing embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the above embodiment of the method for determining a time unit and can achieve the same technical effect, in order to avoid repetition, it will not be repeated here.

It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in the reverse order depending on the functions involved. To perform functions, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on this understanding, the technical solutions of the present application can be embodied in the form of computer software products that are essentially or contribute to the prior art, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims (43)

1. A method for time cell determination, comprising:

the terminal determines an available time unit;

wherein the available time unit is used for transmission of first information; the transmission of the first information occupies a plurality of time units of the available time units.

2. The method of claim 1, wherein the terminal determines an available time unit, comprising:

a terminal receives a downlink signaling sent by a network side device, and determines an available time unit according to indication information of the available time unit carried in the downlink signaling; or,

the terminal determines an available time unit based on a time unit configuration rule predefined by a protocol;

wherein the downlink signaling comprises at least one of the following: downlink control information DCI, system information and high-level signaling; the downlink signaling is carried in at least one of the following items: a physical downlink control channel PDCCH and a physical downlink shared channel PDSCH.

3. The method according to claim 2, wherein the determining available time units according to the indication information of available time units carried in the downlink signaling includes at least one of:

under the condition that the downlink signaling is carried in the PDCCH, determining an available time unit according to a fixed field of Downlink Control Information (DCI) carried in the PDCCH;

and under the condition that the downlink signaling is carried on the PDSCH, determining an available time unit according to the first content carried in the PDSCH.

4. The method according to claim 3, wherein the determining an available time unit according to a fixed field of Downlink Control Information (DCI) carried in the PDCCH comprises at least one of:

for the initial transmission of the first information, determining an available time unit according to a fixed field in a first DCI scrambled by a random access radio network temporary identifier (RA-RNTI) borne in the PDCCH;

and for the transmission or repeated transmission of the first information, determining an available time unit according to a fixed field in a second DCI scrambled by a temporary cell radio network temporary identifier TC-RNTI (temporary cell radio network temporary identifier) borne in the PDCCH.

5. The method for determining time units according to claim 3, wherein the determining available time units according to the first content carried in the PDSCH comprises at least one of:

for the initial transmission of the first information, determining an available time unit according to a Random Access Response (RAR) of a message 2Msg2 in a first format carried in the PDSCH;

for the transmission of the first information, determining an available time unit according to a message 4Msg4 in a second format carried in the PDSCH;

wherein, the Msg2 RAR in the first format is obtained by compressing a partial field in an RAR uplink UL grant or redefining a partial field in an RAR UL grant;

wherein the Msg4 in the second format is obtained through a fixed field contained in the Msg 4.

6. The method according to claim 2, wherein the indication information of the available time units satisfies at least one of:

the indication information of the available time unit indicates that x time units are available from the first time unit of the first information transmission, wherein x is predefined by a protocol or configured by a system message or indicated by the indication information;

the indication information of the available time unit indicates one of a plurality of candidate uplink and downlink configuration combinations, and the candidate uplink and downlink configuration combinations are predefined by a protocol or configured by system information or configured by high-level signaling;

the indication information of the available time unit indicates the transmission direction of the first time unit of the first information transmission starting with the subsequent y time units in the form of a bitmap, or the transmission directions of all flexible time units, or the transmission directions of all time units in a complete time unit configuration period;

the indication information of the available time unit comprises a time unit format, and the time unit format is used for indicating the transmission direction of the flexible time unit configured by the network side equipment;

wherein x and y are positive integers.

7. The method of claim 2, wherein the terminal determines an available time unit, further comprising:

determining the transmission direction of a conflict time unit according to a preset rule under the condition that the indication information of the available time unit conflicts with the transmission direction of the time unit configured by the network side equipment;

wherein the preset rules comprise at least one of:

if the uplink/downlink time unit indicated by the indication information contains a downlink/uplink time unit configured by RRC, the indication information is invalid;

determining the transmission direction of the time unit with the conflict according to RRC configuration;

if the time unit indicated by the indication information conflicts with the time unit of the synchronization signal block SSB or the control resource set CORESET #0, the indication information is invalid, or the time unit of the SSB or CORESET #0 is not influenced by the indication information;

and if the time unit indicated by the indication information is configured as a flexible time unit in the RRC, determining that the time unit is an available time unit.

8. The method of claim 1, wherein the valid time of the available time unit comprises at least one of:

in the time of the first information repeated transmission, the repeated transmission of the first information is carried out according to the available time unit indicated by the first information initial transmission, the first information is transmitted at the same time unit position in the next time unit configuration period, and after the repeated transmission of the first information is completed, the available time unit configuration is invalid;

before entering a connection state to obtain indication information of new uplink and downlink time slot configuration, using an available time unit configuration result of the first information;

and the terminal is only valid in the current time unit configuration period, wherein for the next time unit configuration period, the terminal monitors the corresponding configuration information.

9. The time unit determination method according to any of claims 1-8, wherein the first information comprises at least one of:

message 3Msg 3;

a physical uplink control channel PUCCH for HARQ-ACK of Msg4/MsgB carrying a hybrid automatic repeat request of message 4 or message B;

message 2Msg 2;

a message B MsgB;

message 4Msg 4.

10. The method according to claim 1, wherein in the case that the first message is Msg3, the terminal determines an available time cell, comprising:

determining a first time unit transmitted by the Msg3 according to the result of the Msg2 scheduling or the DCI scheduling scrambled by the TC-RNTI, updating a corresponding time unit in a time unit configuration period to be an uplink time unit, and determining an available uplink time unit in the corresponding period by adopting the same configuration result in a subsequent time unit configuration period.

11. The method according to claim 2, wherein in the case that the first message is Msg3, the terminal determines an available time cell based on a time cell configuration rule predefined by a protocol, and the method comprises at least one of the following:

updating an uplink time cell determined by a Physical Random Access Channel (PRACH) to an available time cell of the Msg 3;

and under the carrier aggregation CA scene, determining the time unit configuration result of the cell according to the time unit configuration results of other cells.

12. The method according to claim 9, wherein in case that the first information is PUCCH for HARQ-ACK of Msg4/MsgB, the terminal determines an available time cell, including at least one of:

determining an uplink available time unit through indication information of the available time unit carried in the PDCCH of the Msg4/MsgB PDSCH or the scheduling Msg 4/MsgB;

and repeatedly transmitting the configuration result of the corresponding available uplink time unit according to the Msg3, or determining the available uplink time unit in the current time unit configuration period according to the configuration result of the random access opportunity RO resource of the random access channel RACH, or according to the uplink and downlink configuration results of other cells.

13. The method according to claim 9, wherein in the case where the first message is Msg2, MsgB, or Msg4, the terminal determines an available time cell, including:

the available downstream time units are determined from the time units of SSB or CORESET # 0.

14. A method for time cell determination, comprising:

the network side equipment sends a downlink signaling to the terminal, wherein the downlink signaling carries indication information of an available time unit;

wherein the available time unit is used for transmission of first information; the transmission of the first information occupies a plurality of time units of the available time units;

wherein the downlink signaling comprises at least one of the following: downlink control information DCI, system information and high-level signaling; the downlink signaling is carried in at least one of the following items: a physical downlink control channel PDCCH and a physical downlink shared channel PDSCH.

15. The method according to claim 14, wherein the network side device sends downlink signaling to the terminal, and the downlink signaling includes at least one of:

the network side equipment sends a PDDCH to the terminal, and the indication information of the available time unit is represented by a fixed field of downlink control information DCI carried in the PDCCH;

and the network side equipment sends a PDSCH to the terminal, and the available time unit indication information is represented by first content carried in the PDSCH.

16. The method according to claim 15, wherein the indication information indicating the available time unit is represented by a fixed field of downlink control information, DCI, carried in the PDCCH, and includes at least one of:

for the initial transmission of the first information, indicating information of the available time unit is represented by a fixed field in first DCI scrambled by a random access radio network temporary identifier (RA-RNTI) carried in the PDCCH;

for the transmission or repeated transmission of the first information, a fixed field in a second DCI scrambled by a temporary cell radio network temporary identity (TC-RNTI) carried in the PDCCH represents indication information of the available time unit.

17. The method according to claim 15, wherein the indicating information of the available time unit is represented by a first content carried in the PDSCH, and comprises at least one of:

for the initial transmission of the first information, the available time cell indication information is represented by a random access response RAR of a message 2Msg2 in a first format carried in the PDSCH;

for the transmission of the first information, the available time cell indication information is represented by a message 4Msg4 in a second format carried in the PDSCH;

wherein, the Msg2 RAR in the first format is obtained by compressing a partial field in an RAR uplink UL grant or redefining a partial field in an RAR UL grant;

wherein the Msg4 in the second format is obtained through a fixed field contained in the Msg 4.

18. The method according to claim 14, wherein the information indicative of the available time units satisfies at least one of:

the indication information of the available time unit indicates that x time units are available from the first time unit of the first information transmission, wherein x is predefined by a protocol or configured by a system message or indicated by the indication information;

the indication information of the available time unit indicates one of a plurality of candidate uplink and downlink configuration combinations, and the candidate uplink and downlink configuration combinations are predefined by a protocol or configured by system information or configured by high-level signaling;

the indication information of the available time unit indicates the transmission direction of the first time unit of the first information transmission starting with the subsequent y time units in the form of a bitmap, or the transmission directions of all flexible time units, or the transmission directions of all time units in a complete time unit configuration period;

the indication information of the available time unit comprises a time unit format, and the time unit format is used for indicating the transmission direction of the flexible time unit configured by the network side equipment;

wherein x and y are positive integers.

19. The method of claim 14, wherein the validity time of the available time unit comprises at least one of:

in the time of the first information repeated transmission, the repeated transmission of the first information is carried out according to the available time unit indicated by the first information initial transmission, the first information is transmitted at the same time unit position in the next time unit configuration period, and after the repeated transmission of the first information is completed, the available time unit configuration is invalid;

before entering a connection state and obtaining indication information of a new available time unit, using an available time unit configuration result of the first information;

and the terminal is only valid in the current time unit configuration period, wherein for the next time unit configuration period, the terminal monitors the corresponding configuration information.

20. The time unit determination method according to any of claims 14-19, characterized in that the first information comprises at least one of the following:

message 3Msg 3;

a physical uplink control channel PUCCH for HARQ-ACK of Msg4/MsgB carrying a hybrid automatic repeat request of message 4 or message B;

message 2Msg 2;

message B MsgB;

message 4Msg 4.

21. A time cell determination apparatus, comprising:

a first determination unit for determining an available time unit;

wherein the available time unit is used for transmission of first information; the transmission of the first information occupies a plurality of time units of the available time units.

22. The time unit determination device according to claim 21, wherein the first determination unit is configured to:

receiving a downlink signaling sent by a network side device, and determining an available time unit according to indication information of the available time unit carried in the downlink signaling; or,

determining an available time unit based on a time unit configuration rule predefined by a protocol;

wherein the downlink signaling comprises at least one of the following: downlink control information DCI, system information and high-level signaling; the downlink signaling is carried in at least one of the following items: a physical downlink control channel PDCCH and a physical downlink shared channel PDSCH.

23. The apparatus for determining a time unit according to claim 22, wherein the determining an available time unit according to the indication information of an available time unit carried in the downlink signaling includes at least one of:

under the condition that the downlink signaling is carried in the PDCCH, determining an available time unit according to a fixed field of Downlink Control Information (DCI) carried in the PDCCH;

and under the condition that the downlink signaling is carried on the PDSCH, determining an available time unit according to the first content carried in the PDSCH.

24. The apparatus for determining time unit according to claim 23, wherein the determining an available time unit according to a fixed field of downlink control information, DCI, carried in the PDCCH includes at least one of:

for the initial transmission of the first information, determining an available time unit according to a fixed field in first DCI scrambled by a random access radio network temporary identifier (RA-RNTI) carried in the PDCCH;

and for the transmission or repeated transmission of the first information, determining an available time unit according to a fixed field in a second DCI scrambled by a temporary cell radio network temporary identifier TC-RNTI carried in the PDCCH.

25. The apparatus for determining time units according to claim 23, wherein said determining available time units according to the first content carried in the PDSCH comprises at least one of:

for the initial transmission of the first information, determining an available time unit according to a Random Access Response (RAR) of a message 2Msg2 in a first format carried in the PDSCH;

for the transmission of the first information, determining an available time unit according to a message 4Msg4 in a second format carried in the PDSCH;

wherein, the Msg2 RAR in the first format is obtained by compressing a partial field in an RAR uplink UL grant or redefining a partial field in an RAR UL grant;

wherein the Msg4 in the second format is obtained through a fixed field contained in the Msg 4.

26. The time unit determining apparatus according to claim 22, wherein the indication information of the available time units satisfies at least one of:

the indication information of the available time unit indicates that x time units are available from the first time unit of the first information transmission, wherein x is predefined by a protocol or configured by a system message or indicated by the indication information;

the indication information of the available time unit indicates one of a plurality of candidate uplink and downlink configuration combinations, and the candidate uplink and downlink configuration combinations are predefined by a protocol or configured by system information or configured by high-level signaling;

the indication information of the available time unit indicates the transmission direction of the first time unit of the first information transmission starting with the subsequent y time units in the form of a bitmap, or the transmission directions of all flexible time units, or the transmission directions of all time units in a complete time unit configuration period;

the indication information of the available time unit comprises a time unit format, and the time unit format is used for indicating the transmission direction of the flexible time unit configured by the network side equipment;

wherein x and y are positive integers.

27. The time unit determining apparatus of claim 22, wherein the first determining unit is further configured to:

determining the transmission direction of a conflict time unit according to a preset rule under the condition that the indication information of the available time unit conflicts with the transmission direction of the time unit configured by the network side equipment;

wherein the preset rules comprise at least one of:

if the uplink/downlink time unit indicated by the indication information contains a downlink/uplink time unit configured by RRC, the indication information is invalid;

the time unit with conflict determines the transmission direction according to RRC configuration;

if the time unit indicated by the indication information conflicts with the time unit of the synchronization signal block SSB or the control resource set CORESET #0, the indication information is invalid, or the time unit of the SSB or CORESET #0 is not influenced by the indication information;

and if the time unit indicated by the indication information is configured as a flexible time unit in the RRC, determining that the time unit is an available time unit.

28. The time unit determination device of claim 21, wherein the valid time of the available time unit comprises at least one of:

in the time of the first information repeated transmission, the repeated transmission of the first information is carried out according to the available time unit indicated by the first information initial transmission, the first information is transmitted at the same time unit position in the next time unit configuration period, and after the repeated transmission of the first information is completed, the available time unit configuration is invalid;

before entering a connection state to obtain indication information of new uplink and downlink time slot configuration, using an available time unit configuration result of the first information;

and the configuration information is valid only in the current time unit configuration period, wherein for the next time unit configuration period, the corresponding configuration information is monitored.

29. The time unit determination device according to any of claims 21-28, wherein the first information comprises at least one of:

message 3Msg 3;

a physical uplink control channel PUCCH for HARQ-ACK of Msg4/MsgB carrying a hybrid automatic repeat request of message 4 or message B;

message 2Msg 2;

message B MsgB;

message 4Msg 4.

30. The time-cell determining apparatus according to claim 29, wherein in a case where the first message is Msg3, the first determining unit is configured to:

determining a first time unit transmitted by the Msg3 according to the result of the Msg2 scheduling or the DCI scheduling scrambled by the TC-RNTI, updating a corresponding time unit in a time unit configuration period to be an uplink time unit, and determining an available uplink time unit in the corresponding period by adopting the same configuration result in a subsequent time unit configuration period.

31. The time cell determining apparatus according to claim 22, wherein in case the first message is Msg3, the determining available time cells based on the protocol predefined time cell configuration rule comprises at least one of:

updating an uplink time cell determined by a Physical Random Access Channel (PRACH) to an available time cell of the Msg 3;

and under the carrier aggregation CA scene, determining the time unit configuration result of the cell according to the time unit configuration results of other cells.

32. The time unit determining device of claim 29, wherein in case the first information is PUCCH for HARQ-ACK of Msg4/MsgB, the first determining unit is configured to perform at least one of:

determining an uplink available time unit through indication information of the available time unit carried in the PDCCH of the Msg4/MsgB PDSCH or the scheduling Msg 4/MsgB;

and repeatedly transmitting the configuration result of the corresponding available uplink time unit according to the Msg3, or determining the available uplink time unit in the current time unit configuration period according to the configuration result of the random access time RO resource of the random access channel RACH, or according to the uplink and downlink configuration results of other cells.

33. The time cell determination device according to claim 29, wherein in case the first message is Msg2, MsgB or Msg4, the first determination unit is configured to:

the available downstream time units are determined from the time units of SSB or CORESET # 0.

34. A time cell determination apparatus, comprising:

a first sending unit, configured to send a downlink signaling to a terminal, where the downlink signaling carries indication information of an available time unit;

wherein the available time unit is used for transmission of first information; the transmission of the first information occupies a plurality of time units of the available time units;

wherein the downlink signaling comprises at least one of the following: downlink control information DCI, system information and high-level signaling; the downlink signaling is carried in at least one of the following: a physical downlink control channel PDCCH and a physical downlink shared channel PDSCH.

35. The time unit determination apparatus of claim 34, wherein the first sending unit is configured to perform at least one of:

sending a PDDCH to a terminal, and indicating information of the available time unit is represented by a fixed field of downlink control information DCI carried in the PDCCH;

and sending a PDSCH to a terminal, wherein the available time unit indication information is represented by first content carried in the PDSCH.

36. The apparatus for determining time unit according to claim 35, wherein the indication information indicating the available time unit is represented by a fixed field of downlink control information, DCI, carried in the PDCCH, and includes:

for the initial transmission of the first information, indicating information of the available time unit is represented by a fixed field in first DCI scrambled by a random access radio network temporary identifier (RA-RNTI) carried in the PDCCH;

for the transmission or repeated transmission of the first information, a fixed field in a second DCI scrambled by a temporary cell radio network temporary identity (TC-RNTI) carried in the PDCCH represents indication information of the available time unit.

37. The apparatus for determining time unit according to claim 35, wherein said representing the available time unit indication information by the first content carried in the PDSCH comprises:

for the initial transmission of the first information, the available time unit indication information is represented by a random access response RAR of a message 2Msg2 in a first format carried in the PDSCH;

for the transmission of the first information, the available time unit indication information is represented by a message 4Msg4 in a second format carried in the PDSCH;

the Msg2 RAR in the first format is obtained by compressing partial fields in an RAR uplink UL grant or redefining partial fields in an RAR UL grant;

wherein the Msg4 in the second format is obtained through a fixed field contained in the Msg 4.

38. The time unit determining apparatus according to claim 34, wherein the indication information of the available time units satisfies at least one of:

the indication information of the available time unit indicates that x time units are available from the first time unit of the first information transmission, wherein x is predefined by a protocol or configured by a system message or indicated by the indication information;

the indication information of the available time unit indicates one of a plurality of candidate uplink and downlink configuration combinations, and the candidate uplink and downlink configuration combinations are predefined by a protocol or configured by system information or configured by high-level signaling;

the indication information of the available time unit indicates the transmission direction of the first time unit of the first information transmission starting with the subsequent y time units in the form of a bitmap, or the transmission directions of all flexible time units, or the transmission directions of all time units in a complete time unit configuration period;

the indication information of the available time unit comprises a time unit format, and the time unit format is used for indicating the transmission direction of the flexible time unit configured by the network side equipment;

wherein x and y are positive integers.

39. The time unit determination device of claim 34, wherein the valid time of the available time unit comprises at least one of:

in the time of the first information repeated transmission, the repeated transmission of the first information is carried out according to the available time unit indicated by the first information initial transmission, the first information is transmitted at the same time unit position in the next time unit configuration period, and after the repeated transmission of the first information is completed, the available time unit configuration is invalid;

before entering a connection state and obtaining indication information of a new available time unit, using an available time unit configuration result of the first information;

and the terminal is only valid in the current time unit configuration period, wherein for the next time unit configuration period, the terminal monitors the corresponding configuration information.

40. The time unit determination device according to any of claims 34-39, wherein the first information comprises at least one of:

message 3Msg 3;

a physical uplink control channel PUCCH for HARQ-ACK of Msg4/MsgB carrying a hybrid automatic repeat request of message 4 or message B;

message 2Msg 2;

message B MsgB;

message 4Msg 4.

41. A terminal comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, which program or instructions, when executed by the processor, carry out the steps of the time cell determination method according to any one of claims 1 to 13.

42. A network-side device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the time cell determination method according to any one of claims 14 to 20.

43. A readable storage medium, characterized in that a program or instructions are stored on the readable storage medium, which program or instructions, when executed by a processor, carry out the steps of the time unit determination method according to any one of claims 1 to 13, or carry out the steps of the time unit determination method according to any one of claims 14 to 20.

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