CN111436120B

CN111436120B - Feedback codebook processing method, terminal equipment and network side equipment

Info

Publication number: CN111436120B
Application number: CN201910027379.8A
Authority: CN
Inventors: 司倩倩; 高雪娟
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-01-11
Filing date: 2019-01-11
Publication date: 2023-04-07
Anticipated expiration: 2039-01-11
Also published as: CN111436120A

Abstract

The invention provides a feedback codebook processing method, terminal equipment and network side equipment, wherein the method comprises the following steps: receiving a configuration message sent by a network side device, wherein the configuration message is used for configuring PDSCH (physical downlink shared channel) candidate time domain resources, the PDSCH candidate time domain resources configured by the configuration message are divided into X PDSCH candidate time domain resource groups, and X is an integer greater than or equal to 2; generating a feedback codebook, wherein the feedback codebook comprises bits for indicating feedback information of each PDSCH candidate time-domain resource group of the X PDSCH candidate time-domain resource groups; and sending the feedback codebook to the network side equipment. The feedback codebook processing method provided by the invention can increase the number of the feedback information of the PDSCH transmitted to the network side equipment, thereby reducing the times of unnecessary retransmission performed by the network side equipment.

Description

Feedback codebook processing method, terminal equipment and network side equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a feedback codebook processing method, a terminal device, and a network device.

Background

In future Mobile communication systems, for example, in New Radio (NR) of the sixteenth Release (Release 16, rel-16), simultaneous transmission of enhanced Mobile Broadband (eMBB) and Ultra-Reliable and Low-Latency Communications (URLLC) traffic will be supported. However, when there is Downlink data multiplexing transmission in one User Equipment (UE) (which may also be referred to as a terminal device), the current semi-static codebook scheme cannot support that two Physical Downlink Shared Channels (PDSCHs) for multiplexing transmission perform feedback on the same Physical Uplink Control Channel (PUCCH) resource.

For example, as shown in fig. 1, when a base station schedules an eMBB service to transmit on a longer PDSCH1 and a higher priority URLLC service arrives at the same time, in order to reduce transmission delay, a base station schedules a terminal device to transmit the URLLC service on a PDSCH2 overlapped with the PDSCH1, and since a current semi-static codebook generates feedback information for non-overlapping PDSCH transmission positions, for the PDSCH1 and the PDSCH2 shown in fig. 1, according to the existing technical solution, a UE generates feedback information only for one PDSCH transmission position, but cannot generate feedback information for both PDSCHs at the same time.

It can be seen that, in the prior art, when there is downlink data multiplexing transmission inside one UE, the UE must discard the feedback information of at least one PDSCH, so that the base station cannot determine whether the terminal correctly receives the PDSCH discarded with the feedback information, and further performs unnecessary retransmission, thereby causing a decrease in spectrum efficiency.

Disclosure of Invention

The embodiment of the invention provides a feedback codebook processing method, terminal equipment and network side equipment, and aims to solve the problem that the number of feedback information of a PDSCH (physical downlink shared channel) which can be transmitted when downlink data of the terminal equipment is multiplexed and transmitted is small in the prior art.

The embodiment of the invention provides a feedback codebook processing method, which is applied to terminal equipment and comprises the following steps:

receiving a configuration message sent by a network side device, wherein the configuration message is used for configuring PDSCH (physical downlink shared channel) candidate time domain resources, the PDSCH candidate time domain resources configured by the configuration message are divided into X PDSCH candidate time domain resource groups, and X is an integer greater than or equal to 2;

generating a feedback codebook, wherein the feedback codebook comprises bits for indicating feedback information of each PDSCH candidate time-domain resource group of the X PDSCH candidate time-domain resource groups;

and sending the feedback codebook to the network side equipment.

Optionally, the configuration message further carries packet indication information of the PDSCH candidate time domain resources, where the packet indication information is used to indicate a packet of each PDSCH candidate time domain resource in the PDSCH candidate time domain resources configured by the configuration message.

Optionally, the configuration message configures multiple PDSCH candidate time domain resources, the grouping indication information includes multiple PDSCH candidate time domain resource group numbers, the allocation information of the multiple PDSCH candidate time domain resources and the multiple PDSCH candidate time domain resource group numbers are both stored in a PDSCH candidate time domain resource configuration table, and each item in the PDSCH candidate time domain resource configuration table includes allocation information of one PDSCH candidate time domain resource and a corresponding PDSCH candidate time domain resource group number.

Optionally, the method further includes:

receiving packet indication information of PDSCH candidate time domain resources sent by the network side equipment;

wherein the grouping indication information includes a corresponding relationship between the PDSCH candidate time domain resources configured by the configuration message and the PDSCH candidate time domain resource group number.

Optionally, the terminal device generates the feedback codebook according to the following codebook generation rule:

respectively cascading the feedback information of the X PDSCH candidate time domain resource groups on each time slot on each carrier wave configured by the network side equipment according to the serial number sequence of the PDSCH candidate time domain resource groups to obtain the cascaded feedback information corresponding to each time slot; respectively cascading the cascade feedback information corresponding to all the time slots on each carrier according to a time sequence to obtain the cascade feedback information corresponding to each carrier; cascading the cascading feedback information corresponding to all the carriers configured by the network side equipment according to the carrier numbering sequence to obtain the feedback codebook;

or alternatively

Respectively cascading the feedback information belonging to the same PDSCH candidate time domain resource group in the feedback information corresponding to all time slots on each carrier configured by the network side equipment according to the time sequence to obtain the cascaded feedback information corresponding to each PDSCH candidate time domain resource group on each carrier; respectively cascading the cascading feedback information corresponding to the X PDSCH candidate time domain resource groups on each carrier according to the serial number sequence of the PDSCH candidate time domain resource groups to obtain the cascading feedback information corresponding to each carrier; cascading the cascading feedback information corresponding to all carriers configured by the network side equipment according to the carrier number sequence to obtain the feedback codebook;

or

Respectively cascading the feedback information belonging to the same PDSCH candidate time domain resource group in the feedback information corresponding to all time slots on each carrier configured by the network side equipment according to a time sequence to obtain first cascaded feedback information corresponding to each PDSCH candidate time domain resource group on each carrier; respectively cascading first cascading feedback information corresponding to the same PDSCH candidate time domain resource group on all carriers configured by the network side equipment according to the carrier number sequence to obtain second cascading feedback information corresponding to each PDSCH candidate time domain resource group; and cascading second cascading feedback information corresponding to the X PDSCH candidate time domain resource groups according to the serial number sequence of the PDSCH candidate time domain resource groups to obtain the feedback codebook.

Optionally, the codebook generation rule is predefined for a protocol.

Optionally, the value of X is predefined for a protocol or configured for a network side.

The embodiment of the invention also provides a feedback codebook processing method, which is applied to network side equipment and comprises the following steps:

sending a configuration message to terminal equipment, wherein the configuration message is used for configuring PDSCH (physical downlink shared channel) candidate time domain resources, the PDSCH candidate time domain resources configured by the configuration message are divided into X PDSCH candidate time domain resource groups, and X is an integer greater than or equal to 2;

receiving a feedback codebook sent by the terminal device, wherein the feedback codebook comprises bits for indicating feedback information of each PDSCH candidate time domain resource group in the X PDSCH candidate time domain resource groups.

Optionally, the method further includes:

sending packet indication information of PDSCH candidate time domain resources to the terminal equipment;

Optionally, the network side device determines, from the feedback codebook, feedback information of each PDSCH candidate time domain resource group in the X PDSCH candidate time domain resource groups according to a codebook generation rule as follows:

respectively cascading the feedback information of the X PDSCH candidate time domain resource groups on each time slot on each carrier wave configured by the network side equipment according to the serial number sequence of the PDSCH candidate time domain resource groups to obtain the cascaded feedback information corresponding to each time slot; respectively cascading the cascading feedback information corresponding to all the time slots on each carrier according to a time sequence to obtain the cascading feedback information corresponding to each carrier; cascading the cascading feedback information corresponding to all carriers configured by the network side equipment according to the carrier number sequence to obtain the feedback codebook;

or

Respectively cascading the feedback information belonging to the same PDSCH candidate time domain resource group in the feedback information corresponding to all time slots on each carrier configured by the network side equipment according to the time sequence to obtain first cascading feedback information corresponding to each PDSCH candidate time domain resource group on each carrier; respectively cascading first cascading feedback information corresponding to the same PDSCH candidate time domain resource group on all carriers configured by the network side equipment according to the carrier number sequence to obtain second cascading feedback information corresponding to each PDSCH candidate time domain resource group; and cascading second cascading feedback information corresponding to the X PDSCH candidate time domain resource groups according to the serial number sequence of the PDSCH candidate time domain resource groups to obtain the feedback codebook.

Optionally, the codebook generation rule is predefined for a protocol.

The embodiment of the invention also provides the terminal equipment. The terminal device includes:

the system comprises a first receiving module, a second receiving module and a third receiving module, wherein the first receiving module is used for receiving a configuration message sent by a network side device, the configuration message is used for configuring PDSCH (physical downlink shared channel) candidate time domain resources, the PDSCH candidate time domain resources configured by the configuration message are divided into X PDSCH candidate time domain resource groups, and X is an integer greater than or equal to 2;

a generating module, configured to generate a feedback codebook, where the feedback codebook includes bits for indicating feedback information of each PDSCH candidate time domain resource group in the X PDSCH candidate time domain resource groups;

a sending module, configured to send the feedback codebook to the network side device.

respectively cascading the feedback information of the X PDSCH candidate time domain resource groups on each time slot on each carrier wave configured by the network side equipment according to the serial number sequence of the PDSCH candidate time domain resource groups to obtain the cascaded feedback information corresponding to each time slot; respectively cascading the cascade feedback information corresponding to all the time slots on each carrier according to a time sequence to obtain the cascade feedback information corresponding to each carrier; cascading the cascading feedback information corresponding to all carriers configured by the network side equipment according to the carrier number sequence to obtain the feedback codebook;

or

or alternatively

The embodiment of the invention also provides network side equipment. The network side device includes:

a first sending module, configured to send a configuration message to a terminal device, where the configuration message is used to configure a PDSCH candidate time domain resource of a physical downlink shared channel, and the PDSCH candidate time domain resource configured by the configuration message is divided into X PDSCH candidate time domain resource groups, where X is an integer greater than or equal to 2;

a receiving module, configured to receive a feedback codebook sent by the terminal device, where the feedback codebook includes bits used to indicate feedback information of each PDSCH candidate time domain resource group in the X PDSCH candidate time domain resource groups.

respectively cascading the feedback information of the X PDSCH candidate time domain resource groups on each time slot on each carrier wave configured by the network side equipment according to the serial number sequence of the PDSCH candidate time domain resource groups to obtain the cascaded feedback information corresponding to each time slot; respectively cascading the cascading feedback information corresponding to all the time slots on each carrier according to a time sequence to obtain the cascading feedback information corresponding to each carrier; cascading the cascading feedback information corresponding to all the carriers configured by the network side equipment according to the carrier numbering sequence to obtain the feedback codebook;

or alternatively

or

An embodiment of the present invention further provides a terminal device, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor:

the transceiver is configured to receive a configuration message sent by a network side device, where the configuration message is used to configure a PDSCH candidate time domain resource of a physical downlink shared channel, the PDSCH candidate time domain resource configured by the configuration message is divided into X PDSCH candidate time domain resource groups, and X is an integer greater than or equal to 2;

the transceiver or the processor configured to generate a feedback codebook, wherein the feedback codebook includes bits for indicating feedback information for each PDSCH candidate time-domain resource group of the X PDSCH candidate time-domain resource groups;

the transceiver is further configured to send the feedback codebook to the network side device.

Optionally, the transceiver is further configured to:

or alternatively

or

An embodiment of the present invention further provides a network side device, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor:

the transceiver is configured to send a configuration message to a terminal device, where the configuration message is used to configure a PDSCH candidate time domain resource of a physical downlink shared channel, the PDSCH candidate time domain resource configured by the configuration message is divided into X PDSCH candidate time domain resource groups, and X is an integer greater than or equal to 2;

the transceiver is further configured to receive a feedback codebook sent by the terminal device, where the feedback codebook includes bits used to indicate feedback information of each PDSCH candidate time domain resource group in the X PDSCH candidate time domain resource groups.

Optionally, the transceiver is further configured to:

or

Respectively cascading the feedback information belonging to the same PDSCH candidate time domain resource group in the feedback information corresponding to all time slots on each carrier configured by the network side equipment according to the time sequence to obtain first cascading feedback information corresponding to each PDSCH candidate time domain resource group on each carrier; respectively cascading first cascading feedback information corresponding to the same PDSCH candidate time domain resource group on all carriers configured by the network side equipment according to the carrier numbering sequence to obtain second cascading feedback information corresponding to each PDSCH candidate time domain resource group; and cascading second cascading feedback information corresponding to the X PDSCH candidate time domain resource groups according to the numbering sequence of the PDSCH candidate time domain resource groups to obtain the feedback codebook.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and the computer program, when executed by a processor, implements the steps of the feedback codebook processing method on the terminal device side provided in the embodiment of the present invention, or when executed by the processor, implements the steps of the feedback codebook processing method on the network side provided in the embodiment of the present invention.

In the embodiment of the invention, a configuration message sent by a network side device is received, wherein the configuration message is used for configuring PDSCH (physical downlink shared channel) candidate time domain resources, the PDSCH candidate time domain resources configured by the configuration message are divided into X PDSCH candidate time domain resource groups, and X is an integer greater than or equal to 2; generating a feedback codebook, wherein the feedback codebook comprises bits for indicating feedback information of each PDSCH candidate time-domain resource group of the X PDSCH candidate time-domain resource groups; and sending the feedback codebook to the network side equipment, so that the network side equipment can acquire the feedback information of each PDSCH candidate time domain resource group. Compared with the prior art, the number of the feedback information of the PDSCH transmitted to the network side equipment can be increased, and the times of unnecessary retransmission performed by the network side equipment can be further reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic diagram of simultaneous transmission of eMBB and URLLC services provided in the related art;

fig. 2 is one of schematic diagrams of configured PDSCH time domain resources provided by an embodiment of the present invention;

FIG. 3 is a schematic diagram of a network architecture to which embodiments of the present invention are applicable;

fig. 4 is a flowchart of a feedback codebook processing method according to an embodiment of the present invention;

FIG. 5 is a flow chart of another feedback codebook processing method according to an embodiment of the present invention;

fig. 6 is a second schematic diagram of configured PDSCH time domain resources provided by the embodiment of the present invention;

fig. 7 is one of schematic diagrams of bit information for indicating feedback information according to an embodiment of the present invention;

fig. 8 is a second schematic diagram of bit information for indicating feedback information according to an embodiment of the present invention;

fig. 9 is a third schematic diagram of configured PDSCH time domain resources provided by the embodiment of the present invention;

fig. 10 is a third schematic diagram of bit information for indicating feedback information according to an embodiment of the present invention;

fig. 11 is a fourth schematic diagram of bit information for indicating feedback information according to an embodiment of the present invention;

fig. 12 is a fifth schematic diagram of bit information for indicating feedback information according to an embodiment of the present invention;

fig. 13 is a structural diagram of a terminal device according to an embodiment of the present invention;

fig. 14 is a structural diagram of a network side device according to an embodiment of the present invention;

fig. 15 is a block diagram of another terminal device according to an embodiment of the present invention;

fig. 16 is a block diagram of another network-side device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

For ease of understanding, some of the matters related to the embodiments of the present invention are described below:

when a terminal device (also referred to as UE) is configured to use a semi-static (Hybrid Automatic Repeat reQuest, HARQ) (also referred to as HARQ-ACK) codebook, the terminal device first determines a PDSCH position set M corresponding to the same timeslot n for HARQ-ACK feedback on each carrier C according to a HARQ-ACK feedback timing sequence (i.e., K1), a semi-static timeslot structure (if configured), and allocation information of PDSCH candidate time domain resources _A,C . Then according to M _A,C And mapping the HARQ-ACK of the PDSCH received in the PDSCH position set to the corresponding position in the HARQ-ACK feedback sequence, thereby obtaining the HARQ-ACK codebook transmitted in the time slot n.

Specifically, the terminal device first determines the number of slots that need to be fed back in a slot on a carrier based on the HARQ feedback timing configured by the higher layer signaling, and then determines the maximum number of PDSCHs that can be transmitted in each slot in the slots. If a semi-static slot structure is configured, candidate PDSCHs that do not satisfy PDSCH transmission conditions may be dropped based on the slot structure. When carrier aggregation exists, the HARQ-ACK code book on each carrier needs to be determined according to the process, and finally the HARQ-ACK code books of different carriers are cascaded according to the carrier sequence to obtain the final HARQ-ACK code book.

If the terminal device can receive more than 1 unicast PDSCH transmission in a timeslot of the carrier, determining the maximum number of PDSCHs that can be Time-Division multiplexed (TDM) transmitted in each timeslot based on the allocation information of the PDSCH candidate Time domain resources configured by Radio Resource Control (RRC). The specific determination steps may be as follows:

the method comprises the following steps: determining each element in a PDSCH time domain resource allocation table as a set R;

step two: finding the element X with the earliest end position in the set R;

step three: finding all the elements (containing element X) in the set R whose starting symbol is earlier than the ending position, these elements overlapping in the time domain and therefore cannot be scheduled at the same time;

step four: and (3) the elements obtained in the first step and the second step correspond to a PDSCH transmission opportunity, the elements obtained in the first step and the second step are removed from the set R, and the second step is executed until the set R does not contain any elements any more.

For example, as shown in fig. 2, a PDSCH time domain resource allocation table configured by the network side device for the terminal device through high-level signaling includes 5 rows of elements a to E, where element a corresponds to a starting symbol 0 and has a length of 10 symbols; element B corresponds to the start symbol 3 and is 2 symbols long; element C corresponds to the start symbol 4, and is 8 symbols long; element D corresponds to a

starting symbol

10, 4 symbols in length; element E corresponds to the starting symbol 10 and is 2 symbols in length.

According to the above steps, the element B with the earliest end position can be found first, and all elements of the element B with the start symbol earlier than the earliest end position in the remaining elements are found, including the element a, the element B and the element C, so that only one PDSCH in the element a, the element B and the element C can be scheduled, corresponding to one HARQ-ACK feedback bit, the element E with the earliest end position in the remaining elements is the element D, and the start symbol of the element D is earlier than the element E, so that only one PDSCH in the element D and the element E can be scheduled, corresponding to one HARQ-ACK feedback bit. Therefore, in the example shown in fig. 2, the maximum number of receivable PDSCHs in one slot by the terminal device is 2.

Based on the above scheme, when there is downlink data multiplexing transmission inside the terminal device, it cannot be supported that two PDSCH multiplexing transmission are fed back on the same PUCCH resource. Therefore, an embodiment of the present invention provides a feedback codebook processing method to solve the above problem.

Referring to fig. 3, fig. 3 is a schematic diagram of a network structure applicable to the embodiment of the present invention, as shown in fig. 3, the network structure includes a terminal Device 11 and a network side Device 12, where the terminal Device 11 may be a user terminal side Device such as a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), or a Wearable Device (Wearable Device), and it should be noted that a specific type of the terminal Device 11 is not limited in the embodiment of the present invention. The network side device 12 may be a base station, for example: macro station, LTE eNB, 5G NR NB, etc.; the network side device 12 may also be a small station, such as a Low Power Node (LPN) pico, femto, or the network side device 12 may be an Access Point (AP); the base station may also be a network node formed by a Central Unit (CU) and a plurality of Transmission Reception Points (TRPs) whose management is controlled. It should be noted that, in the embodiment of the present invention, the specific type of the network-side device 12 is not limited.

The embodiment of the invention provides a feedback codebook processing method which is applied to terminal equipment. Referring to fig. 4, fig. 4 is a flowchart of a feedback codebook processing method according to an embodiment of the present invention, and as shown in fig. 4, the method includes the following steps:

step 401, receiving a configuration message sent by a network side device, where the configuration message is used to configure PDSCH candidate time domain resources of a physical downlink shared channel, and the PDSCH candidate time domain resources configured by the configuration message are divided into X PDSCH candidate time domain resource groups, where X is an integer greater than or equal to 2.

In this embodiment, the configuration message may be a higher layer signaling message, for example, an RRC message. The configuration message may carry allocation information of PDSCH candidate time domain resources to configure multiple PDSCH candidate time domain resources. Specifically, the PDSCH candidate time domain resources configured by the configuration message are divided into PDSCH candidate time domain resource groups, and each PDSCH candidate time domain resource group may include one or more PDSCH candidate time domain resources.

It should be noted that the grouping indication information of the PDSCH candidate time domain resources may be carried in the configuration information or other higher layer messages, which is not limited in this embodiment. In addition, the embodiment of the present invention does not limit how the network side device specifically groups multiple PDSCH candidate time domain resources.

Optionally, the value of X may be predefined by a protocol, or may be configured by a network device.

Optionally, the value of X may be set reasonably according to the number of supportable services simultaneously transmitted. For example, the value of X may be 2 in the case where the number of supportable simultaneous transmission services is 2, and may be 3 in the case where the number of supportable simultaneous transmission services is 3.

For example, in a scenario supporting simultaneous transmission of eMBB and URLLC services, the value of X may be 2.

Step 402, generating a feedback codebook, wherein the feedback codebook includes bits for indicating feedback information of each PDSCH candidate time domain resource group in the X PDSCH candidate time domain resource groups.

In this embodiment, the feedback information may be HARQ-ACK information.

Specifically, after receiving the configuration message, the terminal device may generate a feedback codebook, where the feedback codebook at least includes bits used for indicating feedback information of each PDSCH candidate time-domain resource group in the multiple candidate time-domain resource groups.

For example, the 6 PDSCH candidate time domain resources are divided into PDSCH candidate time domain resource group 1, PDSCH candidate time domain resource group 2, and PDSCH candidate time domain resource group 3, and the feedback codebook at least includes bits for indicating HARQ-ACK information of PDSCH candidate time domain resource group 1, bits for indicating HARQ-ACK information of PDSCH candidate time domain resource group 2, and bits for indicating HARQ-ACK information of PDSCH candidate time domain resource group 3.

It should be noted that the feedback information of each PDSCH candidate time domain resource group may include feedback information of one or more PDSCH candidate time domain resources in the PDSCH candidate time domain resource group. The feedback codebook may be a semi-static feedback codebook.

Step 403, sending the feedback codebook to the network side device.

In this embodiment, the terminal device may send the generated feedback codebook to the network side device, so that the network side device may obtain feedback information of each PDSCH candidate time domain resource group based on the feedback codebook. Compared with the prior art, the method and the device have the advantages that the number of the feedback information of the PDSCH transmitted to the network side device can be increased, the number of times of unnecessary retransmission performed by the network side device can be reduced, the frequency spectrum efficiency of transmission is increased, and the transmission performance is improved.

In this embodiment, the configuration message carries the packet indication information of the PDSCH candidate time domain resource, which can save signaling overhead.

For example, the PDSCH candidate time domain resource configuration table shown in table 1, where K0 represents a slot interval between the PDCCH and the scheduled PDSCH candidate time domain resource, S represents a starting symbol of the PDSCH candidate time domain resource, L represents a symbol length of the PDSCH candidate time domain resource, and the group number represents a PDSCH candidate time domain resource group number.

TABLE 1

Line index	PDSCH mapping type	K ₀	S	L	Group number
							1	Type A	0	0	11	0
2	Type B	0	4	2	1
						3	Type B	0	4	7	0
4	Type B	0	7	7	0

In table 1, the PDSCH candidate time domain resource allocation information with row index value of 1 (i.e. PDSCH mapping type of type A, K) ₀ 0, S is 0, L is 11) the corresponding PDSCH candidate time domain resource group number is 0; PDSCH candidate time domain resource allocation information with row index value of 2 (i.e. PDSCH mapping type of type B, K) ₀ 0, S is 4, L is 2) the corresponding PDSCH candidate time domain resource group number is 1; PDSCH candidate time domain resource allocation information with row index value of 3 (i.e. PDSCH mapping type of type B, K) ₀ 0, S is 4, L is 7) the corresponding PDSCH candidate time domain resource group number is 0; PDSCH candidate time domain resource allocation information with index value of 4 (i.e. PDSCH mapping type of type B, K) ₀ 0, S is 7, L is 7) is 0. That is, the PDSCH candidate time domain resource allocation information with row index value of 1, the PDSCH candidate time domain resource allocation information with row index value of 3, and the PDSCH candidate time domain resource indicated by the PDSCH candidate time domain resource allocation information with row index value of 4 belong to PDSCH candidate time domain resource group 0, and the PDSCH candidate time domain resource indicated by the PDSCH candidate time domain resource allocation information with row index value of 2 belong to PDSCH candidate time domain resource group 1.

In practical application, taking the example that the allocation information of the PDSCH candidate time domain resources is stored in the PDSCH candidate time domain resource configuration table in rows, a column for storing the PDSCH candidate time domain resource group number may be added to the PDSCH candidate time domain resource configuration table, so that the PDSCH candidate time domain resource group corresponding to each row of PDSCH candidate time domain resource allocation information may be determined relatively simply and conveniently.

In this embodiment, each item in the PDSCH candidate time domain resource configuration table includes allocation information of one PDSCH candidate time domain resource and a corresponding PDSCH candidate time domain resource group number, which not only can indicate grouping of each PDSCH candidate time domain resource relatively easily, but also can save signaling overhead.

Optionally, the grouping indication information may include a correspondence between the PDSCH candidate time domain resources and PDSCH candidate time domain resource group numbers, where the allocation information of the PDSCH candidate time domain resources is stored in a PDSCH candidate time domain resource configuration table, and the correspondence is stored in a PDSCH candidate time domain resource grouping table.

For example, the correspondence relationship may include an index of the PDSCH candidate time domain resource and a PDSCH candidate time domain resource group number corresponding thereto.

In this embodiment, the allocation information of the PDSCH candidate time domain resources is stored in the PDSCH candidate time domain resource configuration table, the correspondence is stored in the PDSCH candidate time domain resource grouping table, and the management is facilitated by storing the allocation information of the PDSCH candidate time domain resources and the correspondence in different tables.

Optionally, the method may further include:

In this embodiment of the present invention, the packet indication information may be carried in a higher layer message different from the configuration message. For example, the packet indication information may be received after receiving the configuration message.

Optionally, the correspondence between the PDSCH candidate time domain resources and the PDSCH candidate time domain resource group numbers may be the correspondence between the indexes of the PDSCH candidate time domain resources and the PDSCH candidate time domain resource group numbers.

The embodiment of the invention can improve the flexibility of the transmission of the grouping indication information by carrying the grouping indication information of the PDSCH candidate time domain resources by the messages except the configuration message.

or

In this embodiment, the network side device may configure 1 or multiple carriers for PDSCH transmission, and each carrier may include one or multiple time slots. In addition, the terminal device may generate feedback information for each PDSCH candidate time domain resource group on each time slot on each carrier, respectively.

For convenience of understanding, the following description takes the carrier number as 2, the number of time slots per carrier as 2, and the number of PDSCH candidate time domain resource groups per time slot as 2 as an example.

In an embodiment, first, feedback information of X PDSCH candidate time domain resource groups on each time slot on each carrier configured by the network side device may be cascaded according to the serial number sequence of the PDSCH candidate time domain resource groups, so as to obtain cascaded feedback information corresponding to each time slot.

For example, feedback information corresponding to the PDSCH candidate time domain resource group 1 and the PDSCH candidate time domain resource group 2 on the time slot a1 on the carrier a1 is concatenated according to the numbering sequence, so as to obtain concatenated feedback information a1 corresponding to the time slot a1 on the carrier a1; cascading HARQ-ACK information corresponding to the PDSCH candidate time domain resource group 1 and the PDSCH candidate time domain resource group 2 on the time slot a2 of the carrier a1 according to a group number sequence (namely, the number sequence of the PDSCH candidate time domain resource group), and obtaining cascading feedback information a2 corresponding to the time slot a2 on the carrier a1; cascading the feedback information corresponding to the PDSCH candidate time domain resource group 1 and the PDSCH candidate time domain resource group 2 on the time slot b1 on the carrier b1 according to the group number sequence to obtain cascaded feedback information b1 corresponding to the time slot b1 on the carrier b1; and cascading the HARQ-ACK information corresponding to the PDSCH candidate time domain resource group 1 on the time slot b2 on the carrier b1 and the PDSCH candidate time domain resource group 2 according to the group number sequence to obtain the cascading feedback information b2 corresponding to the time slot b2 on the carrier b 1.

Secondly, the cascade feedback information corresponding to all the time slots on each carrier can be cascaded according to the time sequence, so as to obtain the cascade feedback information corresponding to each carrier.

For example, cascade feedback information a1 corresponding to a time slot a1 on a carrier a1 and cascade feedback information a2 corresponding to a time slot a2 on the carrier a1 are cascaded according to a time sequence to obtain cascade feedback information corresponding to the carrier a1, and cascade feedback information b1 corresponding to a time slot b1 on the carrier b1 and cascade feedback information b2 corresponding to a time slot b2 on the carrier b1 are cascaded according to a time sequence to obtain cascade feedback information corresponding to the carrier b 1.

And finally, cascading the cascading feedback information corresponding to all the carriers configured by the network side equipment according to the carrier number sequence to obtain the feedback codebook.

For example, the cascade feedback information corresponding to the carrier a1 and the cascade feedback information corresponding to the carrier b1 are cascaded according to the carrier number to obtain a feedback codebook.

In another embodiment, first, the feedback information belonging to the same PDSCH candidate time domain resource group in the feedback information corresponding to all timeslots on each carrier configured by the network side device may be concatenated according to a time sequence, so as to obtain the concatenated feedback information corresponding to each PDSCH candidate time domain resource group on each carrier.

For example, feedback information corresponding to the PDSCH candidate time domain resource group 1 on the time slot a1 on the carrier a1 and the PDSCH candidate time domain resource group 1 on the time slot a2 on the carrier a1 are concatenated according to the time sequence, so as to obtain concatenated feedback information a1 corresponding to the PDSCH candidate time domain resource group 1 on the carrier a1; cascading feedback information corresponding to the PDSCH candidate time domain resource group 2 on the time slot a1 on the carrier a1 and the PDSCH candidate time domain resource group 2 on the time slot a2 on the carrier a1 according to a time sequence to obtain cascaded feedback information a2 corresponding to the PDSCH candidate time domain resource group 2 on the carrier a1; cascading feedback information corresponding to the PDSCH candidate time domain resource group 1 on the time slot b1 of the carrier b1 and the PDSCH candidate time domain resource group 1 on the time slot b2 of the carrier b1 according to a time sequence to obtain cascading feedback information b1 corresponding to the PDSCH candidate time domain resource group 1 on the carrier b1; and cascading the feedback information corresponding to the PDSCH candidate time domain resource group 2 on the time slot b1 on the carrier b1 and the feedback information corresponding to the PDSCH candidate time domain resource group 2 on the time slot b2 on the carrier b1 according to the time sequence to obtain the cascaded feedback information b2 corresponding to the PDSCH candidate time domain resource group 2 on the carrier b 1.

Secondly, the cascade feedback information corresponding to the X PDSCH candidate time domain resource groups on each carrier can be cascaded according to the serial number sequence of the PDSCH candidate time domain resource groups, so as to obtain the cascade feedback information corresponding to each carrier.

For example, cascading feedback information a1 corresponding to a PDSCH candidate time domain resource group 1 on a carrier a1 and cascading feedback information a2 corresponding to a PDSCH candidate time domain resource group 2 on the carrier a1 according to the serial number sequence of the PDSCH candidate time domain resource groups to obtain cascading feedback information corresponding to the carrier a1; cascading feedback information b1 corresponding to the PDSCH candidate time domain resource group 1 on the carrier b1 and cascading feedback information b2 corresponding to the PDSCH candidate time domain resource group 2 on the carrier b1 according to the serial number sequence of the PDSCH candidate time domain resource groups to obtain cascading feedback information corresponding to the carrier b 1.

Finally, cascade feedback information corresponding to all carriers configured by the network side device may be cascaded according to a carrier number sequence to obtain the feedback codebook.

For example, the cascade feedback information corresponding to the carrier a1 and the cascade feedback information corresponding to the carrier b1 are cascaded according to the carrier number sequence to obtain the feedback codebook.

In another embodiment, first, in the feedback information corresponding to all timeslots on each carrier configured by the network side device, the feedback information belonging to the same PDSCH candidate time domain resource group may be cascaded according to a time sequence, so as to obtain first cascaded feedback information corresponding to each PDSCH candidate time domain resource group on each carrier.

For example, feedback information corresponding to the PDSCH candidate time domain resource group 1 on the time slot a1 on the carrier a1 and the PDSCH candidate time domain resource group 1 on the time slot a2 on the carrier a1 are concatenated according to a time sequence to obtain concatenated feedback information a1 corresponding to the PDSCH candidate time domain resource group 1 on the carrier a1; cascading feedback information corresponding to the PDSCH candidate time domain resource group 2 on the time slot a1 of the carrier a1 and the PDSCH candidate time domain resource group 2 on the time slot a2 of the carrier a1 according to a time sequence to obtain cascading feedback information a2 corresponding to the PDSCH candidate time domain resource group 2 on the carrier a1; cascading feedback information corresponding to the PDSCH candidate time domain resource group 1 on the time slot b1 on the carrier b1 and the PDSCH candidate time domain resource group 1 on the time slot b2 on the carrier b1 according to a time sequence to obtain cascading feedback information b1 corresponding to the PDSCH candidate time domain resource group 1 on the carrier b1; and cascading the feedback information corresponding to the PDSCH candidate time domain resource group 2 on the time slot b1 of the carrier b1 and the feedback information corresponding to the PDSCH candidate time domain resource group 2 on the time slot b2 of the carrier b1 according to a time sequence to obtain the cascaded feedback information b2 corresponding to the PDSCH candidate time domain resource group 2 on the carrier b 1.

Secondly, the first cascade feedback information corresponding to the same PDSCH candidate time domain resource group on all carriers configured by the network side device may be cascaded according to the carrier number sequence, so as to obtain the second cascade feedback information corresponding to each PDSCH candidate time domain resource group.

For example, the cascade feedback information a1 corresponding to the PDSCH candidate time domain resource group 1 on the carrier a1 and the cascade feedback information b1 corresponding to the PDSCH candidate time domain resource group 1 on the carrier b1 may be cascaded according to the carrier number sequence to obtain the cascade feedback information corresponding to the PDSCH candidate time domain resource group 1; cascading the cascade feedback information a2 corresponding to the PDSCH candidate time domain resource group 2 on the carrier a1 and the cascade feedback information b2 corresponding to the PDSCH candidate time domain resource group 2 on the carrier b1 according to the carrier number sequence to obtain the cascade feedback information corresponding to the PDSCH candidate time domain resource group 2;

and finally, cascading second cascading feedback information corresponding to the X PDSCH candidate time domain resource groups according to the serial number sequence of the PDSCH candidate time domain resource groups to obtain the feedback codebook.

For example, the feedback codebook may be obtained by concatenating the concatenated feedback information corresponding to the PDSCH candidate time domain resource group 1 and the concatenated feedback information corresponding to the PDSCH candidate time domain resource group 2 according to the numbering sequence of the PDSCH candidate time domain resource groups.

It should be noted that the concatenated feedback information may be feedback information after concatenation.

In practical applications, the terminal device may generate a feedback codebook including bits of feedback information indicating each PDSCH candidate time domain resource group on each time slot on each carrier according to the codebook generation rule.

Optionally, the codebook generation rule is predefined for a protocol.

The embodiment of the invention also provides a feedback codebook processing method which is applied to network side equipment. Referring to fig. 5, fig. 5 is a flowchart of a feedback codebook processing method according to an embodiment of the present invention, and as shown in fig. 5, the method includes the following steps:

step 501, sending a configuration message to a terminal device, where the configuration message is used to configure a PDSCH candidate time domain resource of a physical downlink shared channel, the PDSCH candidate time domain resource configured by the configuration message is divided into X PDSCH candidate time domain resource groups, and X is an integer greater than or equal to 2.

It should be noted that the grouping indication information of the multiple PDSCH candidate time domain resources may be carried in the configuration information, or may be carried in other higher layer messages, which is not limited in this embodiment. In addition, the embodiment of the present invention does not limit how the network side device specifically groups the multiple PDSCH candidate time domain resources.

Optionally, the value of X may be predefined by a protocol, or may be configured by a network side device.

Step 502, receiving a feedback codebook sent by the terminal device, where the feedback codebook includes bits used for indicating feedback information of each PDSCH candidate time domain resource group in the X PDSCH candidate time domain resource groups.

In this embodiment, the feedback information may be HARQ-ACK information. The feedback codebook at least includes bits for indicating feedback information of each PDSCH candidate time domain resource group in the plurality of candidate time domain resource groups.

For example, the 6 PDSCH candidate time domain resources are divided into PDSCH candidate time domain resource group 1, PDSCH candidate time domain resource group 2, and PDSCH candidate time domain resource group 3, and the feedback codebook at least includes bits for indicating HARQ-ACK information of PDSCH candidate time domain resource group 1, bits for indicating HARQ-ACK information of PDSCH candidate time domain resource group 2, and bits for indicating HARQ-ACK information of PDSCH candidate time domain resource group 1.

It should be noted that the feedback information of each PDSCH candidate time domain resource group may include feedback information of one or more DSCH candidate time domain resources in the PDSCH candidate time domain resource group. The feedback codebook may be a semi-static feedback codebook.

In this embodiment, the network side device may receive a feedback codebook sent by the terminal device, so that the network side device may obtain feedback information of each PDSCH candidate time domain resource group based on the feedback codebook. Compared with the prior art, the number of feedback information of the PDSCH which can be known by the network side equipment is increased, so that the times of unnecessary retransmission performed by the network side equipment can be reduced, the frequency spectrum efficiency of transmission is increased, and the transmission performance is improved.

For example, refer to the PDSCH candidate time domain resource configuration table shown in table 1 above, where each entry in table 1 includes allocation information (i.e., index, PDSCH mapping type, K0, S, and L) of one PDSCH candidate time domain resource and its corresponding PDSCH candidate time domain resource group number (i.e., group number).

Optionally, the grouping indication information may include a corresponding relationship between the PDSCH candidate time domain resource and a PDSCH candidate time domain resource group number, where the allocation information of the PDSCH candidate time domain resource is stored in a PDSCH candidate time domain resource configuration table, and the corresponding relationship is stored in a PDSCH candidate time domain resource grouping table.

Optionally, the method may further include:

In this embodiment of the present invention, the packet indication information may be carried in a higher layer message different from the configuration message. For example, the above grouping indication information may be transmitted to the terminal device after the above configuration message is transmitted.

or

or alternatively

For example, feedback information corresponding to the PDSCH candidate time domain resource group 1 and the PDSCH candidate time domain resource group 2 on the time slot a1 on the carrier a1 is concatenated according to the numbering sequence, so as to obtain concatenated feedback information a1 corresponding to the time slot a1 on the carrier a1; cascading HARQ-ACK information corresponding to the PDSCH candidate time domain resource group 1 and the PDSCH candidate time domain resource group 2 on the time slot a2 on the carrier a1 according to a group number sequence (namely the numbering sequence of the PDSCH candidate time domain resource group), and obtaining cascading feedback information a2 corresponding to the time slot a2 on the carrier a1; cascading feedback information corresponding to the PDSCH candidate time domain resource group 1 and the PDSCH candidate time domain resource group 2 on the time slot b1 on the carrier b1 according to the group number sequence to obtain cascading feedback information b1 corresponding to the time slot b1 on the carrier b1; and cascading the HARQ-ACK information corresponding to the PDSCH candidate time domain resource group 1 on the time slot b2 on the carrier b1 and the PDSCH candidate time domain resource group 2 according to the group number sequence to obtain the cascading feedback information b2 corresponding to the time slot b2 on the carrier b 1.

For example, feedback information corresponding to the PDSCH candidate time domain resource group 1 on the time slot a1 on the carrier a1 and the PDSCH candidate time domain resource group 1 on the time slot a2 on the carrier a1 are concatenated according to the time sequence, so as to obtain concatenated feedback information a1 corresponding to the PDSCH candidate time domain resource group 1 on the carrier a1; cascading feedback information corresponding to the PDSCH candidate time domain resource group 2 on the time slot a1 of the carrier a1 and the PDSCH candidate time domain resource group 2 on the time slot a2 of the carrier a1 according to a time sequence to obtain cascading feedback information a2 corresponding to the PDSCH candidate time domain resource group 2 on the carrier a1; cascading feedback information corresponding to the PDSCH candidate time domain resource group 1 on the time slot b1 of the carrier b1 and the PDSCH candidate time domain resource group 1 on the time slot b2 of the carrier b1 according to a time sequence to obtain cascading feedback information b1 corresponding to the PDSCH candidate time domain resource group 1 on the carrier b1; and cascading the feedback information corresponding to the PDSCH candidate time domain resource group 2 on the time slot b1 on the carrier b1 and the feedback information corresponding to the PDSCH candidate time domain resource group 2 on the time slot b2 on the carrier b1 according to the time sequence to obtain the cascaded feedback information b2 corresponding to the PDSCH candidate time domain resource group 2 on the carrier b 1.

For example, cascading feedback information a1 corresponding to a PDSCH candidate time domain resource group 1 on a carrier a1 and cascading feedback information a2 corresponding to a PDSCH candidate time domain resource group 2 on the carrier a1 according to the serial number sequence of the PDSCH candidate time domain resource groups to obtain cascading feedback information corresponding to the carrier a1; cascading feedback information b1 corresponding to the PDSCH candidate time domain resource group 1 on the carrier b1 and cascading feedback information b2 corresponding to the PDSCH candidate time domain resource group 2 on the carrier b1 according to the numbering sequence of the PDSCH candidate time domain resource groups to obtain cascading feedback information corresponding to the carrier b 1.

Finally, cascade feedback information corresponding to all carriers configured by the network side device may be cascaded according to a carrier numbering sequence to obtain the feedback codebook.

For example, feedback information corresponding to the PDSCH candidate time domain resource group 1 on the time slot a1 on the carrier a1 and the PDSCH candidate time domain resource group 1 on the time slot a2 on the carrier a1 are concatenated according to a time sequence to obtain concatenated feedback information a1 corresponding to the PDSCH candidate time domain resource group 1 on the carrier a1; cascading feedback information corresponding to the PDSCH candidate time domain resource group 2 on the time slot a1 of the carrier a1 and the PDSCH candidate time domain resource group 2 on the time slot a2 of the carrier a1 according to a time sequence to obtain cascading feedback information a2 corresponding to the PDSCH candidate time domain resource group 2 on the carrier a1; cascading feedback information corresponding to the PDSCH candidate time domain resource group 1 on the time slot b1 of the carrier b1 and the PDSCH candidate time domain resource group 1 on the time slot b2 of the carrier b1 according to a time sequence to obtain cascading feedback information b1 corresponding to the PDSCH candidate time domain resource group 1 on the carrier b1; and cascading the feedback information corresponding to the PDSCH candidate time domain resource group 2 on the time slot b1 on the carrier b1 and the feedback information corresponding to the PDSCH candidate time domain resource group 2 on the time slot b2 on the carrier b1 according to the time sequence to obtain the cascaded feedback information b2 corresponding to the PDSCH candidate time domain resource group 2 on the carrier b 1.

Secondly, the first cascade feedback information corresponding to the same PDSCH candidate time domain resource group on all carriers configured by the network side device may be cascaded according to the order of the carrier numbers, so as to obtain the second cascade feedback information corresponding to each PDSCH candidate time domain resource group.

For example, the cascade feedback information a1 corresponding to the PDSCH candidate time domain resource group 1 on the carrier a1 and the cascade feedback information b1 corresponding to the PDSCH candidate time domain resource group 1 on the carrier b1 may be cascaded according to the order of the carrier numbers, so as to obtain the cascade feedback information corresponding to the PDSCH candidate time domain resource group 1; cascading the cascade feedback information a2 corresponding to the PDSCH candidate time domain resource group 2 on the carrier a1 and the cascade feedback information b2 corresponding to the PDSCH candidate time domain resource group 2 on the carrier b1 according to the carrier number sequence to obtain the cascade feedback information corresponding to the PDSCH candidate time domain resource group 2;

For example, the feedback codebook may be obtained by concatenating the concatenated feedback information corresponding to the PDSCH candidate time domain resource group 1 and the concatenated feedback information corresponding to the PDSCH candidate time domain resource group 2 according to the serial number sequence of the PDSCH candidate time domain resource groups.

It should be noted that the concatenated feedback information may refer to feedback information after concatenation.

In practical applications, the network side device may determine the feedback information of each PDSCH candidate time domain resource group on each time slot on each carrier according to the codebook generation rule.

Optionally, the codebook generation rule is predefined for a protocol.

The following describes embodiments of the present invention with reference to examples:

example one:

assuming that the base station configures the terminal device for feedback using a semi-static codebook scheme, the terminal device can receive multiple PDSCH transmissions in one time slot, assuming that the predefined PDSCH candidate time domain resources are divided into 2 groups. The base station configures PDSCH candidate time domain resource allocation information through a table 2, and in the table 2, the last column indicates a PDSCH candidate time domain resource allocation information group to which the PDSCH candidate time domain resource allocation information in the corresponding row belongs, wherein the value of the group number is 0 to represent that the PDSCH candidate time domain resource allocation information in the row belongs to the PDSCH candidate time domain resource group with the group number of 0, and the value of the group number is 1 to represent that the PDSCH candidate time domain resource allocation information in the row belongs to the PDSCH candidate time domain resource group with the group number of 1.

For example, in the example shown in table 2, PDSCH candidate time domain resources indicated by PDSCH candidate time domain resource allocation information with row index values of 1, 3, 4, and 6 belong to a PDSCH candidate time domain resource group with group number 0, and PDSCH candidate time domain resources indicated by PDSCH candidate time domain resource allocation information with row index values of 2 and 5 belong to a PDSCH candidate time domain resource group with group number 1.

TABLE 2

Line index	PDSCH mapping type	K ₀	S	L	Group number
							1	Type A	0	0	11	0
2	Type B	0	4	2	1
						3	Type B	0	4	7	0
4	Type B	0	7	7	0
						5	Type B	0	8	2	1
6	Type B	0	10	4	0

In this embodiment, a schematic diagram of PDSCH candidate time domain resources may be as shown in fig. 6, where for a PDSCH candidate time domain resource group with a group number of 0, the maximum PDSCH quantity that can be TDM-transmitted in each timeslot is 1, and for a PDSCH candidate time domain resource group with a group number of 1, the maximum PDSCH quantity that can be TDM-transmitted in each timeslot is 2.

It should be noted that, for each PDSCH candidate time domain resource group, the maximum number of PDSCHs that can be TDM-transmitted in each timeslot can be determined according to the manners described in the foregoing step one to step four, respectively.

Assuming that the base station configures the terminal device to use single carrier transmission and single codeword transmission based on a Transport Block (TB) in this embodiment, there are at most 2 timeslots for PDSCH feedback on the same PUCCH resource, and assuming that 2 timeslots corresponding to one PUCCH are all full downlink timeslots, that is, there is no uplink and downlink collision, when generating the semi-static feedback codebook, bit information for indicating feedback information may be determined in one of the following manners:

the first method is as follows: in the 2 downlink time slots, feedback information is respectively generated for each PDSCH candidate time domain resource group, then the feedback information corresponding to two PDSCH candidate time domain resource groups in one time slot is cascaded according to the numbering sequence of the PDSCH candidate time domain resource groups, namely 3-bit feedback information is generated for each time slot, wherein the first bit corresponds to the feedback information of the PDSCH candidate time domain resource group with the group number of 0, and the second two bits correspond to the feedback information of the PDSCH candidate time domain resource group with the group number of 1; then, the feedback information of the 2 downlink time slots is concatenated according to a time sequence, so as to obtain feedback information of 6 bits in total, which may be specifically shown in fig. 7, where a group 0 represents a PDSCH candidate time domain resource group 0, and a group 1 represents a PDSCH candidate time domain resource group 1.

The second method comprises the following steps: in the 2 downlink time slots, feedback information is generated for each PDSCH candidate time domain resource group, then the feedback information belonging to the same PDSCH candidate time domain resource group corresponding to the 2 downlink time slots is concatenated according to a time sequence, that is, a PDSCH candidate time domain resource group with a group number of 0 corresponds to 2-bit feedback information, a PDSCH candidate time domain resource group with a group number of 1 corresponds to 4-bit feedback information, and then the concatenation is performed according to a numbering sequence of the PDSCH candidate time domain resource group to obtain 6-bit feedback information, which may be specifically as shown in fig. 8, where group 0 represents PDSCH candidate time domain resource group 0 and group 1 represents PDSCH candidate time domain resource group 1.

Example two:

assuming that the base station configures the terminal device to perform feedback using the semi-static codebook scheme, the terminal device can receive multiple PDSCH transmissions in one time slot, and assuming that the allocation information of the PDSCH candidate time domain resources configured by the base station is shown in table 3:

TABLE 3

The PDSCH candidate time domain resources configured by the base station through the high-level signaling are divided into 3 groups, PDSCH candidate time domain resources indicated by PDSCH candidate time domain resource allocation information with row index values of 1 and 4 are contained in PDSCH candidate time domain resource groups with group number of 0, PDSCH candidate time domain resources indicated by PDSCH candidate time domain resource allocation information with row index values of 2 and 5 are contained in PDSCH candidate time domain resource groups with group number of 1, and PDSCH candidate time domain resources indicated by PDSCH candidate time domain resource allocation information with row index values of 3 and 6 are contained in PDSCH candidate time domain resource groups with group number of 2.

In this embodiment, a schematic diagram of PDSCH candidate time domain resources may be as shown in fig. 9, where for a PDSCH candidate time domain resource group with a group number of 0, the maximum PDSCH quantity that can be TDM-transmitted in each time slot is 1, for a PDSCH candidate time domain resource group with a group number of 1, the maximum PDSCH quantity that can be TDM-transmitted in each time slot is 2, and for a PDSCH candidate time domain resource group with a group number of 2, the maximum PDSCH quantity that can be TDM-transmitted in each time slot is 2.

It should be noted that, for each PDSCH candidate time domain resource group, the maximum number of PDSCHs that can be TDM-transmitted in each timeslot can be determined according to the manners described in the above step one to step four.

In this embodiment, it is assumed that a base station configures a terminal device to use two carrier transmissions and a single codeword transmission based on a TB, a PDSCH in at most 2 slots feeds back on the same PUCCH resource, and it is assumed that 2 slots on two carriers corresponding to one PUCCH are all full downlink slots, that is, there is no uplink and downlink collision, and when a semi-static feedback codebook is generated, bit information for indicating feedback information may be determined in one of the following manners:

the first method is as follows: firstly, respectively generating feedback information for each PDSCH candidate time domain resource group, then cascading the feedback information of 3 PDSCH candidate time domain resource groups in one time slot according to the serial number sequence of the PDSCH candidate time domain resource groups, namely generating 5-bit feedback information for each time slot, wherein the first bit corresponds to the feedback information of the PDSCH candidate time domain resource group with the group number of 0, the second bit and the third bit correspond to the feedback information of the PDSCH candidate time domain resource group with the group number of 1, and the last two bits correspond to the feedback information of the PDSCH candidate time domain resource group with the group number of 2; then, the feedback information of 2 downlink time slots on the same carrier (i.e., CC1 and CC 2) is cascaded according to a time sequence, and finally, the feedback information of two carriers is cascaded according to a carrier number sequence, so that 20-bit feedback information is obtained in total, which may be specifically shown in fig. 10, where CC1 represents a first carrier, CC2 represents a second carrier, group 0 represents PDSCH candidate time-domain resource group 0, group 1 represents PDSCH candidate time-domain resource group 1, and group 2 represents PDSCH candidate time-domain resource group 2.

The second method comprises the following steps: firstly, feedback information is respectively generated for each PDSCH candidate time domain resource group, then the feedback information belonging to the same PDSCH candidate time domain resource group corresponding to 2 downlink time slots on each carrier is cascaded according to a time sequence, that is, the PDSCH candidate time domain resource group with the group number of 0 corresponds to 2-bit feedback information on each carrier, the PDSCH candidate time domain resource group with the group number of 1 corresponds to 4-bit feedback information on each carrier, and the PDSCH candidate time domain resource group with the group number of 2 corresponds to 4-bit feedback information on each carrier, then 10-bit feedback information is obtained by cascading the feedback information of two carriers according to the number sequence of the PDSCH candidate time domain resource group, and finally 20-bit feedback information is obtained by cascading the feedback information of two carriers according to the carrier number sequence, specifically, as shown in fig. 11, wherein CC1 represents a first carrier, CC2 represents a second carrier, group 0 represents PDSCH candidate time domain resource group 0, group 1 represents PDSCH candidate time domain resource group 1, and group 2 represents candidate time domain PDSCH resource group 2.

The third method comprises the following steps: firstly, feedback information is respectively generated for each PDSCH candidate time domain resource group, then, the feedback information corresponding to 2 downlink time slots and belonging to the same PDSCH candidate time domain resource group is cascaded according to a time sequence on each carrier, then, the feedback information corresponding to 2 carriers and belonging to the same PDSCH candidate time domain resource group is cascaded according to a carrier number sequence, that is, the PDSCH candidate time domain resource group with the group number of 0 corresponds to 4-bit feedback information, the PDSCH candidate time domain resource group with the group number of 1 corresponds to 8-bit feedback information, the PDSCH candidate time domain resource group with the group number of 2 corresponds to 8-bit feedback information, and finally, the feedback information with 20-bit is obtained by cascading according to the number sequence of the PDSCH candidate time domain resource group, which may be specifically shown in fig. 12, wherein CC1 represents a first carrier, CC2 represents a second carrier, group 0 represents PDSCH candidate time domain resource group 0, group 1 represents PDSCH candidate time domain resource group 1, and group 2 represents PDSCH candidate time domain resource group 2.

As can be seen from the above, in this embodiment, when there is downlink data multiplexing transmission inside one terminal device, the terminal device may generate feedback information for multiple overlapped PDSCHs, and send the feedback information to the network side device, so that the network side device may be prevented from performing unnecessary retransmission, the frequency spectrum efficiency of transmission is increased, and the transmission performance of the system is improved.

Referring to fig. 13, fig. 13 is a structural diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 13, the terminal apparatus 1300 includes:

a first receiving module 1301, configured to receive a configuration message sent by a network side device, where the configuration message is used to configure a PDSCH candidate time domain resource of a physical downlink shared channel, the PDSCH candidate time domain resource configured by the configuration message is divided into X PDSCH candidate time domain resource groups, where X is an integer greater than or equal to 2;

a generating module 1302, configured to generate a feedback codebook, where the feedback codebook includes bits used for indicating feedback information of each PDSCH candidate time domain resource group in the X PDSCH candidate time domain resource groups;

a sending module 1303, configured to send the feedback codebook to the network side device.

Optionally, the terminal device further includes:

a second receiving module, configured to receive packet indication information of PDSCH candidate time domain resources sent by the network side device;

or alternatively

or

Respectively cascading the feedback information belonging to the same PDSCH candidate time domain resource group in the feedback information corresponding to all time slots on each carrier configured by the network side equipment according to a time sequence to obtain first cascaded feedback information corresponding to each PDSCH candidate time domain resource group on each carrier; respectively cascading first cascading feedback information corresponding to the same PDSCH candidate time domain resource group on all carriers configured by the network side equipment according to the carrier numbering sequence to obtain second cascading feedback information corresponding to each PDSCH candidate time domain resource group; and cascading second cascading feedback information corresponding to the X PDSCH candidate time domain resource groups according to the numbering sequence of the PDSCH candidate time domain resource groups to obtain the feedback codebook.

Optionally, the codebook generation rule is predefined for a protocol.

Optionally, the value of X is predefined for the protocol or configured for the network side.

The terminal device 1300 provided by the embodiment of the present invention can implement each process implemented by the terminal device in the foregoing method embodiments, and for avoiding repetition, details are not described here again.

The terminal device 1300 of the embodiment of the present invention, the first receiving module 1301 is configured to receive a configuration message sent by a network side device, where the configuration message is used to configure a PDSCH candidate time domain resource of a physical downlink shared channel, the PDSCH candidate time domain resource configured by the configuration message is divided into X PDSCH candidate time domain resource groups, and X is an integer greater than or equal to 2; a generating module 1302, configured to generate a feedback codebook, where the feedback codebook includes bits used for indicating feedback information of each PDSCH candidate time domain resource group in the X PDSCH candidate time domain resource groups; a sending module 1303, configured to send the feedback codebook to the network side device. Therefore, the network side equipment can acquire the feedback information of each PDSCH candidate time domain resource group, and the times of unnecessary retransmission performed by the network side equipment can be further reduced.

Referring to fig. 14, fig. 14 is a structural diagram of a network side device according to an embodiment of the present invention. As shown in fig. 14, the network side device 1400 includes:

a first sending module 1401, configured to send a configuration message to a terminal device, where the configuration message is used to configure a PDSCH candidate time domain resource of a physical downlink shared channel, and the PDSCH candidate time domain resource configured by the configuration message is divided into X PDSCH candidate time domain resource groups, where X is an integer greater than or equal to 2;

a receiving module 1402, configured to receive a feedback codebook sent by the terminal device, where the feedback codebook includes bits used to indicate feedback information of each PDSCH candidate time domain resource group in the X PDSCH candidate time domain resource groups.

Optionally, the network side device further includes:

a second sending module, configured to send packet indication information of PDSCH candidate time domain resources to the terminal device;

or alternatively

or

Optionally, the codebook generation rule is predefined for a protocol.

The network side device 1400 provided in the embodiment of the present invention can implement each process implemented by the network side device in the foregoing method embodiments, and is not described here again to avoid repetition.

The network side device 1400 of the embodiment of the present invention, the first sending module 1401 is configured to send a configuration message to the terminal device, where the configuration message is used to configure a PDSCH candidate time domain resource of a physical downlink shared channel, the PDSCH candidate time domain resource configured by the configuration message is divided into X PDSCH candidate time domain resource groups, X is an integer greater than or equal to 2; a receiving module 1402, configured to receive a feedback codebook sent by the terminal device, where the feedback codebook includes bits used to indicate feedback information of each PDSCH candidate time-domain resource group in the X PDSCH candidate time-domain resource groups. Therefore, the network side equipment can acquire the feedback information of each PDSCH candidate time domain resource group based on the feedback codebook. Compared with the prior art, the number of feedback information of the PDSCH which can be known by the network side equipment is increased, and the times of unnecessary retransmission performed by the network side equipment can be further reduced.

Referring to fig. 15, fig. 15 is a structural diagram of another terminal device according to an embodiment of the present invention, and as shown in fig. 15, the terminal device includes: a transceiver 1510, a memory 1520, a processor 1500, and a program stored on the memory 1520 and executable on the processor, wherein:

the transceiver 1510 is configured to receive a configuration message sent by a network side device, where the configuration message is used to configure a PDSCH candidate time domain resource of a physical downlink shared channel, the PDSCH candidate time domain resource configured by the configuration message is divided into X PDSCH candidate time domain resource groups, where X is an integer greater than or equal to 2;

the transceiver 1510 or the processor 1500, configured to generate a feedback codebook, wherein the feedback codebook includes bits for indicating feedback information for each PDSCH candidate time-domain resource group of the X PDSCH candidate time-domain resource groups;

the transceiver 1510 is further configured to transmit the feedback codebook to the network side device.

The transceiver 1510, among other things, may be used to receive and transmit data under the control of the processor 1500.

In fig. 15, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1500 and various circuits of memory represented by memory 1520 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1510 may be a plurality of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.

The processor 1500 is responsible for managing the bus architecture and general processing, and the memory 1520 may store data used by the processor 1500 in performing operations.

It should be noted that the memory 1520 is not limited to only the terminal device, and the memory 1520 and the processor 1500 may be separated in different geographical locations.

Optionally, the transceiver 1510 is further configured to:

or

or alternatively

Optionally, the codebook generation rule is predefined for a protocol.

It should be noted that, in this embodiment, the terminal device may be a terminal device in any implementation manner in the method embodiment of the present invention, and any implementation manner of the terminal device in the method embodiment of the present invention may be implemented by the terminal device in this embodiment, so as to achieve the same beneficial effects, and details are not described here.

Referring to fig. 16, fig. 16 is a structural diagram of another network-side device according to an embodiment of the present invention, and as shown in fig. 16, the network-side device includes: a transceiver 1610, a memory 1620, a processor 1600, and a program stored on the memory 1620 and executable on the processor, wherein:

the transceiver 1610 is configured to send a configuration message to a terminal device, where the configuration message is used to configure a PDSCH candidate time domain resource of a physical downlink shared channel, the PDSCH candidate time domain resource configured by the configuration message is divided into X PDSCH candidate time domain resource groups, where X is an integer greater than or equal to 2;

the transceiver 1610 is further configured to receive a feedback codebook sent by the terminal device, where the feedback codebook includes bits used to indicate feedback information of each PDSCH candidate time-domain resource group in the X PDSCH candidate time-domain resource groups.

The transceiver 1610 may be used for receiving and transmitting data under the control of the processor 1600, among other things.

In fig. 16, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, in particular one or more processors, represented by the processor 1600, and memory, represented by the memory 1620. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1610 can be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.

The processor 1600 is responsible for managing the bus architecture and general processing, and the memory 1620 may store data used by the processor 1600 in performing operations.

It should be noted that the memory 1620 is not limited to be on a network side device, and the memory 1620 and the processor 1600 may be separated in different geographical locations.

Optionally, the transceiver 1610 is further configured to:

or

Optionally, the codebook generation rule is predefined for a protocol.

It should be noted that, in this embodiment, the network-side device may be a network-side device in any implementation manner in the method embodiment of the present invention, and any implementation manner of the network-side device in the method embodiment of the present invention may be implemented by the network-side device in this embodiment, so as to achieve the same beneficial effects, and details are not described here.

Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the program, when executed by a processor, implements the steps in the feedback codebook processing method on the terminal side provided in the embodiments of the present invention, or the program, when executed by the processor, implements the steps in the feedback codebook processing method on the network side provided in the embodiments of the present invention.

In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the method for processing the information data block according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A feedback codebook processing method is applied to terminal equipment and is characterized by comprising the following steps:

sending the feedback codebook to the network side equipment;

the terminal equipment generates the feedback codebook according to the following codebook generation rules:

or

Respectively cascading the feedback information belonging to the same PDSCH candidate time domain resource group in the feedback information corresponding to all time slots on each carrier configured by the network side equipment according to the time sequence to obtain the cascaded feedback information corresponding to each PDSCH candidate time domain resource group on each carrier; respectively cascading the cascading feedback information corresponding to the X PDSCH candidate time domain resource groups on each carrier according to the serial number sequence of the PDSCH candidate time domain resource groups to obtain the cascading feedback information corresponding to each carrier; cascading the cascading feedback information corresponding to all the carriers configured by the network side equipment according to the carrier numbering sequence to obtain the feedback codebook;

or

Respectively cascading the feedback information belonging to the same PDSCH candidate time domain resource group in the feedback information corresponding to all time slots on each carrier configured by the network side equipment according to a time sequence to obtain first cascaded feedback information corresponding to each PDSCH candidate time domain resource group on each carrier; respectively cascading first cascading feedback information corresponding to the same PDSCH candidate time domain resource group on all carriers configured by the network side equipment according to the carrier numbering sequence to obtain second cascading feedback information corresponding to each PDSCH candidate time domain resource group; and cascading second cascading feedback information corresponding to the X PDSCH candidate time domain resource groups according to the serial number sequence of the PDSCH candidate time domain resource groups to obtain the feedback codebook.

2. The method of claim 1, wherein the configuration message further carries grouping indication information of the PDSCH candidate time domain resources, and the grouping indication information is used for indicating grouping of each PDSCH candidate time domain resource in the PDSCH candidate time domain resources configured by the configuration message.

3. The method of claim 2, wherein the configuration message configures a plurality of PDSCH candidate time domain resources, wherein the grouping indication information comprises a plurality of PDSCH candidate time domain resource group numbers, wherein the allocation information of the plurality of PDSCH candidate time domain resources and the plurality of PDSCH candidate time domain resource group numbers are stored in a PDSCH candidate time domain resource configuration table, and wherein each entry in the PDSCH candidate time domain resource configuration table comprises allocation information of one PDSCH candidate time domain resource and a corresponding PDSCH candidate time domain resource group number.

4. The method of claim 1, further comprising:

5. The method of claim 1, wherein the codebook generation rule is predefined for a protocol.

6. The method of claim 1, wherein the value of X is predefined for a protocol or configured for a network side.

7. A feedback codebook processing method is applied to network side equipment and is characterized by comprising the following steps:

sending a configuration message to a terminal device, wherein the configuration message is used for configuring PDSCH (physical downlink shared channel) candidate time domain resources, the PDSCH candidate time domain resources configured by the configuration message are divided into X PDSCH candidate time domain resource groups, and X is an integer greater than or equal to 2;

receiving a feedback codebook sent by the terminal device, wherein the feedback codebook comprises bits for indicating feedback information of each PDSCH candidate time domain resource group in the X PDSCH candidate time domain resource groups;

the network side equipment determines the feedback information of each PDSCH candidate time domain resource group in the X PDSCH candidate time domain resource groups from the feedback codebook according to the following codebook generation rules:

or

8. The method of claim 7, wherein the configuration message further carries grouping indication information of the PDSCH candidate time domain resources, and the grouping indication information is used to indicate a grouping of each PDSCH candidate time domain resource in the PDSCH candidate time domain resources configured by the configuration message.

9. The method of claim 8, wherein the configuration message configures a plurality of PDSCH candidate time domain resources, wherein the grouping indication information comprises a plurality of PDSCH candidate time domain resource group numbers, wherein the allocation information of the plurality of PDSCH candidate time domain resources and the plurality of PDSCH candidate time domain resource group numbers are stored in a PDSCH candidate time domain resource configuration table, and wherein each entry in the PDSCH candidate time domain resource configuration table comprises allocation information of one PDSCH candidate time domain resource and a corresponding PDSCH candidate time domain resource group number.

10. The method of claim 7, further comprising:

11. The method of claim 7, wherein the codebook generation rule is predefined for a protocol.

12. The method of claim 7, wherein the value of X is predefined for a protocol or configured for a network side.

13. A terminal device, comprising:

a generating module, configured to generate a feedback codebook, where the feedback codebook includes bits used to indicate feedback information of each PDSCH candidate time domain resource group in the X PDSCH candidate time domain resource groups;

a sending module, configured to send the feedback codebook to the network side device;

or

14. A network-side device, comprising:

a receiving module, configured to receive a feedback codebook sent by the terminal device, where the feedback codebook includes bits used to indicate feedback information of each PDSCH candidate time domain resource group in the X PDSCH candidate time domain resource groups;

or

or alternatively

15. A terminal device, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor, wherein:

the transceiver is configured to receive a configuration message sent by a network side device, where the configuration message is used to configure PDSCH candidate time domain resources of a physical downlink shared channel, the PDSCH candidate time domain resources configured by the configuration message are divided into X PDSCH candidate time domain resource groups, where X is an integer greater than or equal to 2;

the transceiver or the processor, configured to generate a feedback codebook, where the feedback codebook includes bits for indicating feedback information of each PDSCH candidate time-domain resource group of the X PDSCH candidate time-domain resource groups;

the transceiver is further configured to send the feedback codebook to the network side device;

wherein the transceiver or the processor is configured to generate the feedback codebook according to the following codebook generation rule:

or

or alternatively

16. The terminal device of claim 15, wherein the configuration message further carries grouping indication information of the PDSCH candidate time domain resources, and the grouping indication information is used to indicate a grouping of each PDSCH candidate time domain resource in the PDSCH candidate time domain resources configured by the configuration message.

17. The terminal device of claim 16, wherein the configuration message configures a plurality of PDSCH candidate time domain resources, wherein the grouping indication information includes a plurality of PDSCH candidate time domain resource group numbers, wherein allocation information of the plurality of PDSCH candidate time domain resources and the plurality of PDSCH candidate time domain resource group numbers are stored in a PDSCH candidate time domain resource configuration table, and wherein each entry in the PDSCH candidate time domain resource configuration table includes allocation information of one PDSCH candidate time domain resource and a corresponding PDSCH candidate time domain resource group number.

18. The terminal device of claim 15, wherein the transceiver is further configured to:

19. A network-side device, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor, wherein:

the transceiver is further configured to receive a feedback codebook sent by the terminal device, where the feedback codebook includes bits used to indicate feedback information of each PDSCH candidate time-domain resource group in the X PDSCH candidate time-domain resource groups;

wherein the transceiver or the processor is configured to determine, from the feedback codebook, feedback information for each PDSCH candidate time domain resource group of the X PDSCH candidate time domain resource groups according to a codebook generation rule as follows:

or alternatively

20. The network side equipment of claim 19, wherein the configuration message further carries grouping indication information of the PDSCH candidate time domain resources, and the grouping indication information is used to indicate a grouping of each PDSCH candidate time domain resource in the PDSCH candidate time domain resources configured by the configuration message.

21. The network-side device of claim 20, wherein the configuration message configures a plurality of PDSCH candidate time domain resources, the grouping indication information includes a plurality of PDSCH candidate time domain resource group numbers, the allocation information of the plurality of PDSCH candidate time domain resources and the plurality of PDSCH candidate time domain resource group numbers are stored in a PDSCH candidate time domain resource configuration table, and each entry in the PDSCH candidate time domain resource configuration table includes allocation information of one PDSCH candidate time domain resource and a corresponding PDSCH candidate time domain resource group number.

22. The network-side device of claim 19, wherein the transceiver is further configured to:

23. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps in the feedback codebook processing method as claimed in one of the claims 1 to 6, or which program, when being executed by a processor, carries out the steps in the feedback codebook processing method as claimed in one of the claims 7 to 12.