CN117426131A - Communication method and device - Google Patents

Abstract

The application provides a communication method and device, wherein the method comprises the following steps: and the terminal equipment determines a resource pool according to configuration information when transmitting the side uplink, wherein the configuration information comprises configuration modes of micro time slots and conventional time slots. In this way, the terminal device determines the resource pool according to the configuration mode of the micro time slot and the conventional time slot, thereby ensuring coexistence of the conventional time slot and the micro time slot.

Description

Communication methods and devices Technical field

The present application relates to the field of communication technology, and in particular, to a communication method and device.

Background technique

Device-to-Device communication (Device-to-Device, D2D) is a sidelink (SL) transmission technology. Different from the traditional cellular system in which communication data is received or sent through the base station, it has a higher Spectral efficiency and lower transmission delay.

For the sidelink resource pool, in addition to regular slots, the NR New Radio (NR) User to Network interface Universal (Uu) interface transmission system also introduces mini-slots (mini- slot) transmission or scheduling. That is, the Physical Uplink Shared Channel (PUSCH) or Physical Downlink Shared Channel (PDSCH) scheduled by the network is not based on regular time slots, but is based on the time domain symbols in the regular time slots. Granularity, thereby achieving the purpose of reducing latency.

In the existing NR SL system, sidelink transmission or scheduling is based on regular time slot (slot) as the granularity. However, when NR SL is applied to scenarios such as the Industrial Internet, it has higher requirements on system latency, and micro-slot-based sidelink transmission can be used to meet latency requirements. However, in the existing NR SL system, when the micro-slot-based sidelink transmission method is used, the coexistence of micro-slots and regular time slots cannot be guaranteed.

Application content

Embodiments of the present application provide a communication method and device to solve the problem in the prior art that the coexistence of micro-time slots and regular time slots cannot be guaranteed when using sidelink transmission methods based on micro-time slots.

A first aspect of this application provides a communication method, which method includes:

The terminal device determines the resource pool according to the configuration information, and the configuration information includes the configuration mode of the micro-time slot and the regular time slot.

In an optional implementation, the configuration information is configured or pre-configured by a network device or defined by a standard.

In an optional implementation, the resource pool is used for sidelink transmission, and the sidelink transmission is sidelink transmission based at least on mini-slots.

In an optional implementation manner, the configuration method includes that the micro time slot and the regular time slot exist in resource pools of different time divisions.

In an optional implementation, the configuration information further includes first indication information, and the first indication information is used to indicate the minimum time domain granularity of the resource pool.

In an optional implementation, if some of the symbols in the regular time slot are configured as a resource pool with the mini-slot as the minimum resource granularity, then the remaining symbols in the regular time slot are also configured as The mini-slot is a resource pool with the minimum resource granularity.

In an optional implementation, the configuration information also includes second indication information and third indication information. The second indication information is used to indicate the location of the regular time slot where the mini-time slot belonging to the resource pool is located. , the third indication information is used to indicate the position of the mini-slot belonging to the resource pool in the regular time slot.

In an optional implementation, the second indication information includes bitmap information, the third indication information includes an index value or a plurality of positioning parameters, and the plurality of positioning parameters include the microcontroller belonging to the resource pool. The starting point parameter of the time slot in the regular time slot and the length parameter of the micro-time slot belonging to the resource pool.

In an optional implementation manner, the configuration method includes that the micro time slot and the regular time slot exist in different frequency division resource pools.

In an optional implementation, the configuration method includes that the micro time slot and the regular time slot exist in the same resource pool.

In an optional implementation, the configuration information also includes configuration information of the micro-slot, and the configuration information of the micro-slot includes that the length of the micro-slot is two characters, and the Mini-slots are located on the third-to-last and second-to-last symbols of a sideline slot.

In an optional implementation, the configuration information of the micro-time slot further includes that the frequency domain resources occupied by the micro-time slot do not overlap with the frequency domain resources occupied by the physical sidelink feedback channel existing on the same symbol.

In an optional implementation, the configuration information of the micro-slot also includes automatic gain control symbols of the physical sidelink control channel and the physical sidelink shared channel sent in the micro-slot when they are located on the next sidelink. on the fourth to last symbol of the gap.

In an optional implementation, the transmission time of the physical sidelink control channel and the physical sidelink shared channel sent in the mini-slot in the penultimate fourth symbol is no later than a preset time, The preset time is the end time of the fourth to last symbol.

In an optional implementation, the physical sidelink control channel sent in the mini-slot occupies two symbols and a preset number of physical resource blocks.

In an optional implementation, the configuration information of the micro-slot also includes that the automatic gain control symbols of the physical sidelink control channel and the physical sidelink shared channel sent in the micro-time slot are located in the penultimate position of the sidelink time slot. on three symbols and takes up the entire third to last symbol.

In an optional implementation, the physical sidelink control channel sent on symbols other than micro-slots in the regular time slot is used to indicate reserving resources on the micro-slot for re-transmission of the same transport block. transmission or a new transmission of another transport block.

In an optional implementation manner, the number of physical resource blocks included in one subchannel in the micro time slot is greater than the number of physical resource blocks included in one subchannel in the regular time slot.

In an optional implementation, the configuration information also includes configuration information of the regular time slot, and the configuration information of the regular time slot is used to determine whether to transmit the physical sidelink shared channel on the micro time slot. And when the number of sub-channels occupied by the physical sidelink shared channel is a preset number, the number of resources occupied by the second-order sidelink control information.

In an optional implementation, the configuration information of the regular time slot includes the number of resources available for the physical sidelink shared channel transmission in a preset number of sub-channels on the regular time slot and the regular time slot. The number of resources used for transmitting a physical sidelink control channel and the demodulation reference signal of the physical sidelink control channel in the slot.

In an optional implementation, the configuration information of the regular time slot is also used to determine the size of the transport block.

In an optional implementation, the configuration information of the regular time slot includes the demodulation reference signal configuration on the regular time slot, the number of side row symbols configuration on the regular time slot, the regular time slot The demodulation reference signal configuration of the physical sidelink shared channel on a regular time slot is the number of physical resource blocks that can be used for transmission on the physical sidelink shared channel in a preset number of sub-channels on a regular time slot.

In an optional implementation, the sidelink control information used to indicate reserved resources in the sidelink transmission includes fourth indication information, and the fourth indication information is used to indicate reserved resources. The resource is located in the mini-slot or in the regular time slot.

In an optional implementation, the downlink control information in the sidelink transmission includes fifth indication information, and the fifth indication information is used to indicate whether the mini-slot or the micro-slot is currently scheduled. Describe the regular time slot.

A second aspect of this application provides a communication method, which method includes:

The network device sends configuration information, the configuration information includes the configuration mode of the micro-time slot and the regular time slot, and the configuration information is used to determine the resource pool.

In an optional implementation, the resource pool is used for sidelink transmission, and the sidelink transmission is sidelink transmission based at least on mini-slots.

In an optional implementation manner, the configuration method includes that the micro time slot and the regular time slot exist in resource pools of different time divisions.

In an optional implementation, the configuration information further includes first indication information, and the first indication information is used to indicate the minimum time domain granularity of the resource pool.

In an optional implementation, if some of the symbols in the regular time slot are configured as a resource pool with the mini-slot as the minimum resource granularity, then the remaining symbols in the regular time slot are also configured as The mini-slot is a resource pool with the minimum resource granularity.

In an optional implementation, the configuration information also includes second indication information and third indication information. The second indication information is used to indicate the location of the regular time slot where the mini-time slot belonging to the resource pool is located. , the third indication information is used to indicate the position of the mini-slot belonging to the resource pool in the regular time slot.

In an optional implementation, the second indication information includes bitmap information, the third indication information includes an index value or a plurality of positioning parameters, and the plurality of positioning parameters include the microcontroller belonging to the resource pool. The starting point parameter of the time slot in the regular time slot and the length parameter of the micro-time slot belonging to the resource pool.

In an optional implementation manner, the configuration method includes that the micro time slot and the regular time slot exist in different frequency division resource pools.

In an optional implementation, the configuration method includes that the micro time slot and the regular time slot exist in the same resource pool.

In an optional implementation, the configuration information also includes configuration information of the micro-slot, and the configuration information of the micro-slot includes that the length of the micro-slot is two characters, and the Mini-slots are located on the third-to-last and second-to-last symbols of a sideline slot.

In an optional implementation, the configuration information of the micro-time slot further includes that the frequency domain resources occupied by the micro-time slot do not overlap with the frequency domain resources occupied by the physical sidelink feedback channel existing on the same symbol.

In an optional implementation, the configuration information of the micro-slot also includes automatic gain control symbols of the physical sidelink control channel and the physical sidelink shared channel sent in the micro-slot when they are located on the next sidelink. on the fourth to last symbol of the gap.

In an optional implementation, the transmission time of the physical sidelink control channel and the physical sidelink shared channel sent in the mini-slot in the penultimate fourth symbol is no later than a preset time, The preset time is the end time of the fourth to last symbol.

In an optional implementation, the physical sidelink control channel sent in the mini-slot occupies two symbols and a preset number of physical resource blocks.

In an optional implementation, the configuration information of the micro-slot also includes that the automatic gain control symbols of the physical sidelink control channel and the physical sidelink shared channel sent in the micro-time slot are located in the penultimate position of the sidelink time slot. on three symbols and takes up the entire third to last symbol.

In an optional implementation, the physical sidelink control channel sent on symbols other than micro-slots in the regular time slot is used to indicate reserving resources on the micro-slot for re-transmission of the same transport block. transmission or a new transmission of another transport block.

In an optional implementation manner, the number of physical resource blocks included in one subchannel in the micro time slot is greater than the number of physical resource blocks included in one subchannel in the regular time slot.

In an optional implementation, the configuration information also includes configuration information of the regular time slot, and the configuration information of the regular time slot is used to determine whether to transmit the physical sidelink shared channel on the micro time slot. And when the number of sub-channels occupied by the physical sidelink shared channel is a preset number, the number of resources occupied by the second-order sidelink control information.

In an optional implementation, the configuration information of the regular time slot includes the number of resources available for the physical sidelink shared channel transmission in a preset number of sub-channels on the regular time slot and the regular time slot. The number of resources used for transmitting a physical sidelink control channel and the demodulation reference signal of the physical sidelink control channel in the slot.

In an optional implementation, the configuration information of the regular time slot is also used to determine the size of the transport block.

In an optional implementation, the configuration information of the regular time slot includes the demodulation reference signal configuration on the regular time slot, the number of side row symbols configuration on the regular time slot, the regular time slot The demodulation reference signal configuration of the physical sidelink shared channel on a regular time slot is the number of physical resource blocks that can be used for transmission on the physical sidelink shared channel in a preset number of sub-channels on a regular time slot.

In an optional implementation, the sidelink control information used to indicate reserved resources in the sidelink transmission includes fourth indication information, and the fourth indication information is used to indicate reserved resources. The resource is located in the mini-slot or in the regular time slot.

In an optional implementation, the downlink control information in the sidelink transmission includes fifth indication information, and the fifth indication information is used to indicate whether the mini-slot or the micro-slot is currently scheduled. Describe the regular time slot.

A third aspect of this application provides a communication device, including:

The acquisition module is configured to determine the resource pool according to the configuration information, where the configuration information includes the configuration mode of micro-time slots and regular time slots.

In an optional implementation, the configuration information is configured or pre-configured by a network device or defined by a standard.

In an optional implementation, it is characterized in that the resource pool is used for sidelink transmission, and the sidelink transmission is sidelink transmission based at least on mini-slots.

In an optional implementation manner, the configuration method includes that the micro time slot and the regular time slot exist in resource pools of different time divisions.

In an optional implementation, the configuration information further includes first indication information, and the first indication information is used to indicate the minimum time domain granularity of the resource pool.

In an optional implementation, if some of the symbols in the regular time slot are configured as a resource pool with the mini-slot as the minimum resource granularity, then the remaining symbols in the regular time slot are also configured as The mini-slot is a resource pool with the minimum resource granularity.

In an optional implementation, the configuration information also includes second indication information and third indication information. The second indication information is used to indicate the location of the regular time slot where the mini-time slot belonging to the resource pool is located. , the third indication information is used to indicate the position of the mini-slot belonging to the resource pool in the regular time slot.

In an optional implementation, the second indication information includes bitmap information, the third indication information includes an index value or a plurality of positioning parameters, and the plurality of positioning parameters include the microcontroller belonging to the resource pool. The starting point parameter of the time slot in the regular time slot and the length parameter of the micro-time slot belonging to the resource pool.

In an optional implementation manner, the configuration method includes that the micro time slot and the regular time slot exist in different frequency division resource pools.

In an optional implementation, the configuration method includes that the micro time slot and the regular time slot exist in the same resource pool.

In an optional implementation, the configuration information also includes configuration information of the micro-slot, and the configuration information of the micro-slot includes that the length of the micro-slot is two characters, and the Mini-slots are located on the third-to-last and second-to-last symbols of a sideline slot.

In an optional implementation, the configuration information of the micro-time slot further includes that the frequency domain resources occupied by the micro-time slot do not overlap with the frequency domain resources occupied by the physical sidelink feedback channel existing on the same symbol.

In an optional implementation, the configuration information of the micro-slot also includes automatic gain control symbols of the physical sidelink control channel and the physical sidelink shared channel sent in the micro-slot when they are located on the next sidelink. on the fourth to last symbol of the gap.

In an optional implementation, the transmission time of the physical sidelink control channel and the physical sidelink shared channel sent in the mini-slot in the penultimate fourth symbol is no later than a preset time, The preset time is the end time of the fourth to last symbol.

In an optional implementation, the physical sidelink control channel sent in the mini-slot occupies two symbols and a preset number of physical resource blocks.

In an optional implementation, the configuration information of the micro-slot also includes that the automatic gain control symbols of the physical sidelink control channel and the physical sidelink shared channel sent in the micro-time slot are located in the penultimate position of the sidelink time slot. on three symbols and takes up the entire third to last symbol.

In an optional implementation, the physical sidelink control channel sent on symbols other than micro-slots in the regular time slot is used to indicate reserving resources on the micro-slot for re-transmission of the same transport block. transmission or a new transmission of another transport block.

In an optional implementation manner, the number of physical resource blocks included in one subchannel in the micro time slot is greater than the number of physical resource blocks included in one subchannel in the regular time slot.

In an optional implementation, the configuration information also includes configuration information of the regular time slot, and the configuration information of the regular time slot is used to determine whether to transmit the physical sidelink shared channel on the micro time slot. And when the number of sub-channels occupied by the physical sidelink shared channel is a preset number, the number of resources occupied by the second-order sidelink control information.

In an optional implementation, the configuration information of the regular time slot includes the number of resources available for the physical sidelink shared channel transmission in a preset number of sub-channels on the regular time slot and the regular time slot. The number of resources used for transmitting a physical sidelink control channel and the demodulation reference signal of the physical sidelink control channel in the slot.

In an optional implementation, the configuration information of the regular time slot is also used to determine the size of the transport block.

In an optional implementation, the configuration information of the regular time slot includes the demodulation reference signal configuration on the regular time slot, the number of side row symbols configuration on the regular time slot, the regular time slot The demodulation reference signal configuration of the physical sidelink shared channel on a regular time slot is the number of physical resource blocks that can be used for transmission on the physical sidelink shared channel in a preset number of sub-channels on a regular time slot.

In an optional implementation, the sidelink control information used to indicate reserved resources in the sidelink transmission includes fourth indication information, and the fourth indication information is used to indicate reserved resources. The resource is located in the mini-slot or in the regular time slot.

In an optional implementation, the downlink control information in the sidelink transmission includes fifth indication information, and the fifth indication information is used to indicate whether the mini-slot or the micro-slot is currently scheduled. Describe the regular time slot.

A fourth aspect of the present application provides a communication device, which includes:

A sending module, configured to send configuration information, where the configuration information includes configuration modes of micro-slots and regular time slots, and the configuration information is used to determine a resource pool.

In an optional implementation, the resource pool is used for sidelink transmission, and the sidelink transmission is sidelink transmission based at least on mini-slots.

In an optional implementation manner, the configuration method includes that the micro time slot and the regular time slot exist in resource pools of different time divisions.

In an optional implementation, the configuration information further includes first indication information, and the first indication information is used to indicate the minimum time domain granularity of the resource pool.

In an optional implementation, if some of the symbols in the regular time slot are configured as a resource pool with the mini-slot as the minimum resource granularity, then the remaining symbols in the regular time slot are also configured as The mini-slot is a resource pool with the minimum resource granularity.

In an optional implementation, the configuration information also includes second indication information and third indication information. The second indication information is used to indicate the location of the regular time slot where the mini-time slot belonging to the resource pool is located. , the third indication information is used to indicate the position of the mini-slot belonging to the resource pool in the regular time slot.

In an optional implementation, the second indication information includes bitmap information, the third indication information includes an index value or a plurality of positioning parameters, and the plurality of positioning parameters include the microcontroller belonging to the resource pool. The starting point parameter of the time slot in the regular time slot and the length parameter of the micro-time slot belonging to the resource pool.

In an optional implementation manner, the configuration method includes that the micro time slot and the regular time slot exist in different frequency division resource pools.

In an optional implementation, the configuration method includes that the micro time slot and the regular time slot exist in the same resource pool.

In an optional implementation, the configuration information also includes configuration information of the micro-slot, and the configuration information of the micro-slot includes that the length of the micro-slot is two characters, and the Mini-slots are located on the third-to-last and second-to-last symbols of a sideline slot.

In an optional implementation, the configuration information of the micro-time slot further includes that the frequency domain resources occupied by the micro-time slot do not overlap with the frequency domain resources occupied by the physical sidelink feedback channel existing on the same symbol.

In an optional implementation, the configuration information of the micro-slot also includes automatic gain control symbols of the physical sidelink control channel and the physical sidelink shared channel sent in the micro-slot when they are located on the next sidelink. on the fourth to last symbol of the gap.

In an optional implementation, the transmission time of the physical sidelink control channel and the physical sidelink shared channel sent in the mini-slot in the penultimate fourth symbol is no later than a preset time, The preset time is the end time of the fourth to last symbol.

In an optional implementation, the physical sidelink control channel sent in the mini-slot occupies two symbols and a preset number of physical resource blocks.

In an optional implementation, the configuration information of the micro-slot also includes that the automatic gain control symbols of the physical sidelink control channel and the physical sidelink shared channel sent in the micro-time slot are located in the penultimate position of the sidelink time slot. on three symbols and takes up the entire third to last symbol.

In an optional implementation, the physical sidelink control channel sent on symbols other than micro-slots in the regular time slot is used to indicate reserving resources on the micro-slot for re-transmission of the same transport block. transmission or a new transmission of another transport block.

In an optional implementation manner, the number of physical resource blocks included in one subchannel in the micro time slot is greater than the number of physical resource blocks included in one subchannel in the regular time slot.

In an optional implementation, the configuration information also includes configuration information of the regular time slot, and the configuration information of the regular time slot is used to determine whether to transmit the physical sidelink shared channel on the micro time slot. And when the number of sub-channels occupied by the physical sidelink shared channel is a preset number, the number of resources occupied by the second-order sidelink control information.

In an optional implementation, the configuration information of the regular time slot includes the number of resources available for the physical sidelink shared channel transmission in a preset number of sub-channels on the regular time slot and the regular time slot. The number of resources used for transmitting a physical sidelink control channel and the demodulation reference signal of the physical sidelink control channel in the slot.

In an optional implementation, the configuration information of the regular time slot is also used to determine the size of the transport block.

In an optional implementation, the configuration information of the regular time slot includes the demodulation reference signal configuration on the regular time slot, the number of side row symbols configuration on the regular time slot, the regular time slot The demodulation reference signal configuration of the physical sidelink shared channel on a regular time slot is the number of physical resource blocks that can be used for transmission on the physical sidelink shared channel in a preset number of sub-channels on a regular time slot.

In an optional implementation, the sidelink control information used to indicate reserved resources in the sidelink transmission includes fourth indication information, and the fourth indication information is used to indicate reserved resources. The resource is located in the mini-slot or in the regular time slot.

In an optional implementation, the downlink control information in the sidelink transmission includes fifth indication information, and the fifth indication information is used to indicate whether the mini-slot or the micro-slot is currently scheduled. Describe the regular time slot.

The fifth aspect of this application provides a terminal device, including:

Processors, memories, transmitters, and interfaces for communication with end devices;

The memory stores computer execution instructions;

The processor executes the computer execution instructions stored in the memory, so that the processor executes the communication method as described in the first aspect.

A sixth aspect of this application provides a network device, including:

Processors, memories, transmitters, and interfaces for communication with end devices;

The memory stores computer execution instructions;

The processor executes the computer execution instructions stored in the memory, so that the processor executes the communication method as described in the second aspect.

A seventh aspect of the present application provides a chip, including: a processor configured to call and run a computer program from a memory, so that a device installed with the chip executes the method described in the first aspect.

An eighth aspect of this application provides a chip, including: a processor configured to call and run a computer program from a memory, so that a device installed with the chip executes the method described in the second aspect.

A ninth aspect of the present application provides a computer-readable storage medium for storing a computer program, the computer program causing a computer to execute the method as described in the first aspect.

A tenth aspect of the present application provides a computer-readable storage medium for storing a computer program, the computer program causing a computer to execute the method described in the second aspect.

An eleventh aspect of the present application provides a computer program product, which includes computer instructions. When the computer instructions are executed by a processor, the method described in the first aspect is implemented.

A twelfth aspect of the present application provides a computer program product, which includes computer instructions. When the computer instructions are executed by a processor, the method described in the second aspect is implemented.

A thirteenth aspect of the present application provides a computer program, which causes a computer to execute the method described in the first aspect.

A fourteenth aspect of the present application provides a device. The device may include: at least one processor and an interface circuit, and the related program instructions are executed in the at least one processor, so that the communication device implements the first aspect. method described.

A fifteenth aspect of the present application provides a device. The device may include: at least one processor and an interface circuit, and the related program instructions are executed in the at least one processor, so that the communication device implements the communication device as described in the second aspect. method described.

A sixteenth aspect of the present application provides a communication system, including: a communication device as described in the third aspect, and a communication device as described in the fourth aspect.

A seventeenth aspect of the present application provides a communication device, which is used to perform the method described in the first aspect.

An eighteenth aspect of the present application provides a communication device, which is used to perform the method described in the second aspect.

In the communication method and device provided by the embodiments of the present application, the terminal equipment determines the resource pool according to the configuration information during sidelink transmission. The configuration information includes the configuration methods of micro-time slots and regular time slots. In this way, the terminal device determines the resource pool according to the configuration method of micro-time slots and regular time slots, thereby ensuring the coexistence of regular time slots and micro-time slots.

Description of the drawings

In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are of the present invention. For some embodiments of the invention, those of ordinary skill in the art can also obtain other drawings based on these drawings without exerting any creative effort.

Figure 1 is a schematic diagram of intranet communication within network coverage provided by an embodiment of the present application;

Figure 2 is a schematic diagram of side-link communication with partial network coverage provided by an embodiment of the present application;

Figure 3 is a schematic diagram of network coverage outside line communication provided by an embodiment of the present application;

Figure 4 is a schematic diagram of unicast transmission provided by an embodiment of the present application;

Figure 5 is a schematic diagram of multicast transmission provided by an embodiment of the present application;

Figure 6 is a schematic diagram of broadcast transmission provided by an embodiment of the present application;

Figure 7 is a schematic diagram of a time slot structure provided by an embodiment of the present application;

Figure 8 is a schematic diagram of another time slot structure provided by an embodiment of the present application;

Figure 9 is a resource mapping diagram of a second-order SCI provided by an embodiment of the present application;

Figure 10 is a schematic diagram of the format of a sidelink feedback channel provided by an embodiment of the present application;

Figure 11 is a schematic diagram of micro-slot scheduling provided by the embodiment of the present application;

Figure 12 is a schematic diagram of a communication method provided by an embodiment of the present application.

Figure 13 is a schematic flow chart of a communication method provided by an embodiment of the present application;

Figure 14 is a schematic diagram of the location of a micro-time slot provided by an embodiment of the present application;

Figure 15 is a schematic diagram of the time-frequency position of a micro-slot provided by an embodiment of the present application;

Figure 16 is a signaling interaction diagram of a communication method provided by an embodiment of the present application;

Figure 17 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

Figure 18 is a schematic structural diagram of another communication device provided by an embodiment of the present application;

Figure 19 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are Invent some embodiments, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

The terms "first", "second", etc. in the description, claims, and above-mentioned drawings of the embodiments of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the application described herein can, for example, be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "include" and "having" and any variations thereof are intended to cover non-exclusive inclusions, e.g., a process, method, system, product, or apparatus that encompasses a series of steps or units and need not be limited to those explicitly listed. Those steps or elements may instead include other steps or elements not expressly listed or inherent to the process, method, product or apparatus.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is just an association relationship that describes related objects, indicating that three relationships can exist. For example, A and/or B can mean: A exists alone, A and B exist simultaneously, and they exist alone. B these three situations. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

Next, sidelink communication will be described first.

In side communication, according to the network coverage of the communicating terminal, side communication can be divided into side communication within network coverage, side communication with partial network coverage, and side communication outside network coverage. Figure 1 is a schematic diagram of side-link communication with partial network coverage provided by an embodiment of the present application. Figure 2 is a schematic diagram of side-line communication with partial network coverage provided by an embodiment of the present application. Figure 3 is a schematic diagram of side-link communication with partial network coverage provided by an embodiment of the present application. Schematic diagram of network overlay outer row communications.

As shown in Figure 1, in network coverage intraline communication, all terminals performing sideline communication are within the coverage of the same network device. The above terminals can receive configuration signaling from network equipment based on the same sideline configuration. Perform side-by-side communication.

As shown in Figure 2, when part of the network covers side-link communication, some terminals performing side-link communication are located within the coverage of the network device, and the terminals located within the coverage of the network device can receive the configuration signaling of the network device. And perform sideline communication according to the configuration of the base station. The terminal located outside the network coverage cannot receive the configuration signaling of the network device. At this time, the terminal outside the network coverage will use the pre-configuration information and the physical side signal sent by the terminal located within the network coverage. The information carried in the Physical Sidelink Broadcast Channel (PSBCH) determines the sidelink configuration, thereby performing sidelink communication.

As shown in Figure 3, in the case of side-link communication outside the network coverage, all terminals performing side-link communication are located outside the network coverage, and all terminals determine the side-link configuration based on the preconfiguration information to perform side-link communication.

Device-to-device communication is a side-link transmission technology that is different from the way communication data is received or sent through base stations in traditional cellular systems. It has higher spectrum efficiency and lower transmission delay. Among them, the Internet of Vehicles system uses device-to-device communication, and the 3rd Generation Partnership Project (3GPP) defines two transmission modes: the first mode and the second mode.

In the first mode, the transmission resources of the terminal device are allocated by the network device, and the terminal device sends data on the side link according to the resources allocated by the terminal device. The network device can allocate single-transmission resources to the terminal device or allocate semi-static transmission resources to the terminal device. As shown in Figure 1, the terminal device is located within the network coverage, and the network device allocates transmission resources for sidelink transmission to the terminal.

In the first mode, the terminal device selects a resource in the resource pool for data transmission. As shown in Figure 3, the terminal device is located outside the cell coverage, and the terminal device independently selects transmission resources from the preconfigured resource pool for sidelink transmission. Or, as shown in Figure 1, the terminal device independently selects transmission resources from the resource pool configured in the network for side transmission.

The following describes NR vehicle wireless communication technology (vehicle to X, V2X).

First of all, in NR-V2X, autonomous driving needs to be supported, so higher requirements are put forward for data interaction between vehicles, such as higher throughput, lower latency, higher reliability, and greater coverage. scope, more flexible resource allocation, and more.

Secondly, in LTE-V2X, broadcast transmission is supported, and unicast and multicast transmission are also introduced. Figure 4 is a schematic diagram of a unicast transmission provided by an embodiment of the present application. Figure 5 is a schematic diagram of a multicast transmission provided by an embodiment of the present application. Figure 6 is a schematic diagram of a broadcast transmission provided by an embodiment of the present application. For unicast transmission, there is only one receiving terminal. As shown in Figure 4, unicast transmission is performed between user equipment (User Equipment, UE) 1 and UE2. For multicast transmission, the receiving end is all terminals in a communication group, or all terminals within a certain transmission distance. As shown in Figure 5, UE1, UE2, UE3 and UE4 form a communication group, in which UE1 sends data. Other terminal devices in the group are receiving terminals. For the broadcast transmission mode, the receiving end is any terminal around the sending end terminal. As shown in Figure 6, UE1 is the sending end terminal, and the other terminals around it, UE2-UE6, are all receiving end terminals.

The following describes the time slot structure of the NR-V2X system frame.

FIG. 7 is a schematic diagram of a time slot structure provided by an embodiment of the present application, and FIG. 8 is a schematic diagram of another time slot structure provided by an embodiment of the present application. The time slot structure shown in FIG. 7 does not include the Physical Sidelink Feedback Channel (PSFCH), and the time slot structure shown in FIG. 8 includes the PSFCH.

Referring to Figures 7 and 8, in NR-V2X, the Physical Sidelink Control Channel (PSCCH) starts from the second sidelink symbol of the timeslot in the time domain and occupies 2 or 3 positive Orthogonal Frequency Division Multiplexing (OFDM) symbols can occupy {10, 12, 15, 20, 25} physical resource blocks (Orthogonal Frequency Division Multiplexing, PRB) in the frequency domain. In order to avoid blind detection of PSCCH by terminal equipment, only one number of PSCCH symbols and one number of PRBs are allowed to be configured in a resource pool. In addition, since the sub-channel is the minimum granularity of PSSCH resource allocation in NR-V2X, the number of PRBs occupied by PSCCH must be less than or equal to the number of PRBs contained in a sub-channel in the resource pool to avoid affecting the physical sidelink shared channel (Physical Sidelink Shared Channel). Channel, PSSCH) resource selection or allocation causes additional restrictions. PSSCH also starts from the second sidelink symbol of the time slot in the time domain. The last time domain symbol in the time slot is a guard period (Guard period, GP) symbol, and the remaining symbols are mapped to the PSSCH. The first siderow symbol in this time slot is a repetition of the second siderow symbol. Usually the receiving terminal uses the first siderow symbol as an automatic gain control (Automatic Gain Control, AGC) symbol. The data is generally not used for data demodulation. As shown in Figure 7, PSSCH occupies K sub-channels in the frequency domain, and each sub-channel includes N consecutive PRBs.

When the time slot contains the PSFCH channel, as shown in Figure 8, the penultimate and penultimate symbols in the time slot are used for PSFCH channel transmission, and a time domain symbol before the PSFCH channel is used as a GP symbol.

The following describes the second-level system control information (SCI) mechanism in NR-V2X.

A second-order SCI is introduced in NR-V2X. The first-order SCI is carried in the PSCCH and is used to indicate the transmission resources, reserved resource information, modulation and coding strategy (Modulation and Coding Scheme, MCS) level, priority and other information of the PSSCH. , the second-order SCI is sent in the resources of PSSCH, and is demodulated using the Demodulation Reference Signal (DMRS) of PSSCH, which is used to indicate the sending end identification, receiving end identification, Hybrid Automatic Repeat Request (Hybrid Automatic Repeat Request, HARQ) identification, Network Device Interface (Network Device Interface, NDI) and other information used for data demodulation. The second-order SCI starts mapping from the first DMRS symbol of the PSSCH, mapping in the frequency domain first and then in the time domain. Figure 9 is a resource mapping diagram of a second-order SCI provided by an embodiment of the present application. As shown in Figure 9, PSCCH occupies 3 symbols (symbols 1, 2, and 3), and DMRS of PSSCH occupies symbols 4 and 11. The second-order SCI is mapped from symbol 4, and frequency division multiplexed with DMRS on symbol 4. The second-order SCI is mapped to symbols 4, 5, and 6. The resource size occupied by the second-order SCI depends on the number of bits of the second-order SCI.

The sidelink feedback channel will be described below.

In NR-V2X, in order to improve reliability, a sidelink feedback channel is introduced. For example, for unicast transmission, the sending terminal sends sideline data (including PSCCH and PSSCH) to the receiving terminal, and the receiving terminal sends HARQ feedback information (including Acknowledge character (ACK) or acknowledgment) to the sending terminal. Character (Non Acknowledge character, NACK)), the sending terminal determines whether retransmission is needed based on the feedback information from the receiving terminal. The HARQ feedback information is carried in the sidelink feedback channel, such as PSFCH.

In some embodiments, sideline feedback can be activated or deactivated through preconfiguration information or network configuration information. If sidelink feedback is activated, the receiving terminal receives the sideline data sent by the sending terminal and feeds back HARQ ACK or NACK to the sending end based on the detection results. The sending terminal decides to send retransmission data or new data based on the feedback information from the receiving end. . If sidelink feedback is deactivated, the receiving terminal does not need to send feedback information, and the sending terminal usually uses blind retransmission to send data. For example, the sending terminal repeatedly sends each sideline data K times, rather than based on the received data. The end terminal feedback information determines whether retransmission data needs to be sent.

The format of the side row feedback channel is explained below.

In NR-V2X, PSFCH is introduced, which carries only 1 bit of HARQ-ACK information and occupies 2 time domain symbols in the time domain (the second symbol carries sideline feedback information, and the data on the first symbol is a copy of the data on the second symbol, but this symbol is used as AGC) and occupies 1 PRB in the frequency domain. Figure 10 is a schematic diagram of the format of a sidelink feedback channel provided by an embodiment of the present application. As shown in Figure 10, the positions of the time domain symbols occupied by PSFCH, PSCCH and PSSCH in a time slot are given. In a time slot, the last symbol is used as GP, the second to last symbol is used for PSFCH transmission, the third to last symbol data is the same as the data of the PSFCH symbol, and is used as AGC, and the fourth to last symbol is also used as GP. The first symbol in the slot is used as AGC, and the data on this symbol is the same as the data on the second time domain symbol in the slot. PSCCH occupies 3 time domain symbols, and the remaining symbols can be used for PSSCH transmission.

The following describes the sidelink resource pool time slot configuration.

In NR-V2X, the time domain resources in the resource pool can be determined in the following way.

In some embodiments, the time domain resources of the resource pool can be determined within a System Frame Number (SFN) period or a Direct Frame Number (DFN) period. Specifically, a time domain resource of the resource pool is determined in the following manner. Which time domain resources within a SFN cycle or a DFN cycle belong to the resource pool.

For example, the total number of time slots included in one SFN cycle is 10240×2 ^μ time slots, where the parameter μ is related to the subcarrier spacing size. Among the 10240×2 ^μ time slots, the synchronization time slots, downlink time slots, special time slots, and reserved subframes are removed. The remaining time slots are renumbered to form a time slot set:

Among them, the number of remaining time slots can be evenly divided by L _bitmap , L _bitmap represents the length of the bitmap used to indicate the resource pool configuration; if a time slot includes time domain symbols Y, Y+1, Y+2, ..., if at least one time domain symbol in Y+X-1 is not configured as an uplink symbol by the network signaling (TDD-UL-DL-ConfigCommon), then the time slot is a special time slot; Y and X respectively represent sl- StartSymbol and sl-LengthSymbols are two RRC layer parameters used to indicate the bitmap of resource pool configuration. Periodically mapped to the remaining time slots; a bit value of 1 indicates that the time slot corresponding to the bit belongs to the resource pool, and a bit value of 0 indicates that the time slot corresponding to the bit does not belong to the resource pool .

An SFN cycle or a DFN cycle includes 10240×2 ^μ time slots (i.e. 10240ms). The cycle of the synchronization signal (referred to as the synchronization cycle) is 160ms. A synchronization cycle includes 2 synchronization time slots. Therefore, in an SFN There are 128 synchronization time slots in the cycle. The length of the bitmap used to indicate the resource pool configuration is 10 bits (i.e. L _bitmap = 10), so 2 reserved time slots (reserved subframe) are required, and the number of remaining time slots is (10240-128-2= 10110), can be divisible by the length of the bitmap 10, the remaining time slots are renumbered as 0, 1, 2,..., 10109, the first 3 bits of the bitmap are 1, and the remaining 7 bits are 0, that is It can be seen that among the remaining time slots, the first 3 time slots out of every 10 time slots belong to the resource pool, and the remaining time slots do not belong to the resource pool. Since the bitmap needs to be repeated 1011 times in the remaining time slots to indicate whether all time slots belong to the resource pool, and there are 3 time slots in each bitmap period that belong to the resource pool, so there are a total of 1011 times in one SFN cycle. 3033 time slots belong to the resource pool.

It should be noted that the time slots involved in the above-mentioned Figures 7 to 10 are all conventional time slots.

Micro-slots are described below.

In the Rel-15 NR Uu interface transmission system, mini-slot transmission or scheduling is introduced. That is, the PUSCH or PDSCH scheduled by the network is not based on the time slot as the granularity, but on the time domain symbol within the time slot. Granularity, thereby achieving the purpose of reducing latency.

Figure 11 is a schematic diagram of micro-slot scheduling provided by an embodiment of the present application. As shown in Figure 11, the PDCCH located at the head of the slot can either schedule the PDSCH located in the same slot (using mini-slot 1 as the resource unit) or the PUSCH located at the end of the slot (using mini-slot 2 as the resource unit). resource unit), so that uplink and downlink data can be quickly scheduled within a time slot. In the NR system, micro-slot scheduling with {2, 4, 7} time domain symbols as the time domain scheduling granularity is supported.

In the existing NR SL system, sidelink transmission or scheduling is based on regular time slot (slot) as the granularity. However, when NR SL is applied to scenarios such as the Industrial Internet, it has higher requirements on system latency, and micro-slot-based sidelink transmission can be used to meet latency requirements. However, in the existing NR SL system, when the micro-slot-based sidelink transmission method is used, the coexistence of micro-slots and regular time slots cannot be guaranteed.

In order to solve the above problems, embodiments of the present application provide a communication method and device. During sidelink transmission, the terminal device determines the resource pool according to the configuration mode of micro-time slots and regular time slots. In this way, the terminal device determines the resource pool according to the configuration method of micro-time slots and regular time slots, thereby ensuring the coexistence of regular time slots and micro-time slots.

The application scenarios of this application are illustrated below with examples.

Figure 12 is a schematic diagram of a communication method provided by an embodiment of the present application. As shown in Figure 12, the network device 102 sends configuration information to the terminal device. After obtaining the configuration information, the terminal device 101 determines the configuration mode of the micro-time slot and the regular time slot, so that the micro-time slot is used during sidelink transmission. and the configuration method of regular time slots to determine the resource pool.

The terminal device 101 may include, but is not limited to, a satellite or cellular phone, a Personal Communications System (PCS) terminal that can combine cellular radiotelephone with data processing, fax and data communication capabilities; may include a radiotelephone, a pager, the Internet / PDAs with intranet access, Web browsers, planners, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or handheld receivers or including radiotelephone transceivers other electronic devices. Terminal equipment may refer to access terminal, user equipment (User Equipment, UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or User device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a device with wireless communications Functional handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks or terminal devices in future evolved PLMNs, etc.

Network device 102 may provide communication coverage for a specific geographic area and may communicate with terminal devices located within the coverage area. Optionally, the network device 102 may be a base station (Base Transceiver Station, BTS) in the GSM system or CDMA system, a base station (NodeB, NB) in the WCDMA system, or an evolved base station in the LTE system. (Evolutional Node B, eNB or eNodeB), or a wireless controller in the Cloud Radio Access Network (Cloud Radio Access Network, CRAN), or the network device can be a mobile switching center, relay station, access point, vehicle-mounted equipment, Wearable devices, hubs, switches, bridges, routers, network equipment in 5G networks or network equipment in future evolved Public Land Mobile Networks (PLMN), etc.

The following uses terminal equipment and network equipment as examples to describe in detail the technical solutions of the embodiments of the present application using specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

Figure 13 is a schematic flowchart of a communication method provided by an embodiment of the present application. This embodiment of the present application relates to the process of how a terminal device determines a resource pool. As shown in Figure 13, the method includes:

S201. The terminal device obtains configuration information.

Among them, the configuration information includes the configuration methods of micro time slots and regular time slots. The resource pool is used for sidelink transmissions that are at least mini-slot based sidelink transmissions.

In the embodiment of the present application, in sidelink transmission based on at least micro-time slots, when the terminal device needs to determine the resource pool, the configuration of the micro-time slots and regular time slots can be determined from the configuration information sent by the network device. Way.

It should be understood that the embodiments of the present application do not limit how to obtain the configuration information. In some embodiments, the configuration information may be configured by a network device, or may be pre-configured, or may be defined by a standard.

It should be understood that the embodiment of the present application does not limit the configuration method of micro time slots and regular time slots. Examples may include resource pools where micro time slots and regular time slots exist in different time divisions, micro time slots and regular time slots. There are three ways: slots exist in different frequency-division resource pools, and mini-slots and regular time slots exist in the same resource pool.

The configuration methods of the three micro-time slots and conventional time slots provided above are described separately below.

In the first configuration method, micro-time slots and regular time slots exist in different time-division resource pools, that is, micro-time slots and regular time slots exist in different resource pools, and the time domain resources occupied by different resource pools are not the same. overlapping. If on one carrier, the granularity of the time domain resources included in a resource pool can be micro-slots. Correspondingly, the configuration information can include first indication information. The first indication information is used to indicate the minimum time domain granularity of the resource pool. .

For example, the minimum time domain granularity of the resource pool indicated by the first indication information may be 14 symbols or 7 symbols. If the first indication information indicates 14 symbols, it indicates that the minimum time domain granularity of the resource pool is a regular time slot. If the first indication information indicates 7 symbols, it indicates that the minimum time domain granularity of the resource pool is micro-time slots. gap.

In some embodiments, a carrier is configured with a resource pool with micro-slots as the minimum time domain granularity. If some symbols in the regular time slots are configured as resource pools with micro-time slots as the minimum resource granularity, then the regular time slots The remaining symbols in are also configured as resource pools with mini-slots as the minimum resource granularity.

For example, if the first 7 symbols of a time slot are configured as resource A with micro-slots as the minimum time granularity, then the remaining 7 symbols should be configured as resource pool B with micro-slots as the minimum time granularity. . Among them, resource pool A and resource pool B can be the same resource pool, or they can be different resource pools.

It should be understood that in this embodiment of the present application, the configuration information may also indicate the location of the mini-slot. Correspondingly, the configuration information also includes second indication information and third indication information. The second indication information is used to indicate the location of the regular time slot where the mini-slot belonging to the resource pool is located. The third indication information is used to indicate that the micro-time slot belonging to the resource pool is located. The position of the mini-slot in the regular time slot.

The embodiment of this application does not place any restrictions on how to determine the location of the micro-slot. In some embodiments, the second indication information includes bitmap information, and the third indication information includes an index value. The bitmap information is used to determine the location of the time slot where the mini-time slot belonging to the resource pool is located, and the index value is used to indicate the time slot. Which micro-slot within the slot belongs to the resource pool, and the location of the micro-slot can be determined through the bitmap information and index value. Exemplarily, Figure 14 is a schematic position diagram of a micro-time slot provided by the embodiment of the present application. As shown in Figure 14, a bitmap with a length of 10 indicates the 0th, 1st, and 4th time slots in every 10 time slots. , time slots No. 5, 8 and 9 contain micro-time slots belonging to the resource pool, and subsequently, the second micro-time slot in the time slot indicated by the index value 1 indicates that the bitmap belongs to the resource pool.

In other embodiments, the second indication information includes bitmap information, and the third indication information includes a plurality of positioning parameters, and the plurality of positioning parameters include a starting point parameter of a mini-slot belonging to the resource pool in a regular time slot and a parameter belonging to the resource pool. The length parameter of the mini-slot. The bitmap information is used to determine the location of the time slot where the micro-time slot belongs to the resource pool. Multiple positioning parameters are used to indicate which micro-time slot in the time slot belongs to the resource pool. Through the bitmap information and multiple positioning parameters The location of mini-slots can be determined.

In the second configuration method, micro time slots and regular time slots exist in different frequency division resource pools. In the third configuration method, micro-time slots and regular time slots exist in the same resource pool. For the second configuration method and the third configuration method, the configuration information also includes micro-slot configuration information.

Figure 15 is a schematic diagram of the time-frequency position of a micro-slot provided by an embodiment of the present application. As shown in Figure 15, in the second configuration mode and the third configuration mode, the configuration information of the micro-time slot includes that the length of the micro-time slot is two characters, and the micro-time slot is located at the penultimate position of a side row time slot. Three and on the penultimate symbol. Preferably, if there is a PSFCH on the penultimate third and second last symbols of a sidelink time slot, the PRB occupied by the PSFCH and the PRB occupied by the mini-slot do not overlap.

It should be understood that side-link time slots refer to time slots that can be used for side-link transmission.

In some embodiments, in the second configuration mode and the third configuration mode, the configuration information of the micro-slot also includes the automatic gain control symbols of the physical sidelink control channel and the physical sidelink shared channel sent in the micro-slot. Located on the fourth to last symbol of the next side row slot. The transmission time of the physical sidelink control channel and the physical sidelink shared channel sent in the mini-slot in the penultimate fourth symbol is no later than the preset time T. The preset time T is the end time of the fourth to last symbol.

It should be noted that T is a default value. For example, T is equal to the length of half a symbol. The signal sent by the terminal device in T can be the signal sent within T time starting from the third symbol from the last, and the signal sent within the last T time on the third symbol from the last is a repetition. For example, as shown in Figure 14, the last half symbol of the 10th symbol can be used as the AGC symbol of the mini-slot.

Preferably, in the second configuration mode and the third configuration mode, the physical sidelink control channel sent in the mini-slot occupies two symbols and a preset number of physical resource blocks.

Among them, the starting PRB occupied by the PSSCH scheduled by the PSCCH is adjacent to the last PRB occupied by the PSCCH. For example, the DMRS of the PSSCH sent in the mini-slot is located in the first symbol of the mini-slot.

The embodiments of the present application do not limit the number of presets. For example, they can be defined by standards, network configurations, or preconfigured.

In some embodiments, in the second configuration mode and the third configuration mode, the configuration information of the micro-slot also includes the automatic gain control symbols of the physical sidelink control channel and the physical sidelink shared channel sent in the micro-slot. It is located on the third-to-last symbol of the side row slot (the first symbol of the mini-slot) and occupies the entire third-to-last symbol. At this time, the signal sent on the AGC symbol is a repetition of the signal sent on the second symbol of the mini-slot. In this case, the PSCCH sent in the micro-slot occupies a specific number of PRBs on the second symbol of the micro-slot. The PRB of the scheduled PSSCH is actually adjacent to the last PRB of the PSCCH. The DMRS of the PSSCH is also located in the micro-slot. The second symbol of the gap.

Compared with the second configuration method, the third configuration method also has some different configuration strategies.

In some embodiments, in the third configuration mode, the micro-slots in a regular time slot and the regular time slot belong to the same resource pool, then the symbols sent on the symbols other than the micro-time slots in the regular time slot The physical sidelink control channel is used to indicate reserving resources on the mini-slot for retransmission of the same transport block or new transmission of another transport block. It should be noted that the same holds true in the opposite case.

Preferably, the number of PRBs contained in a sub-channel in a micro time slot is greater than the number of PRBs contained in a sub-channel in a regular time slot. For example, as shown in Figure 14, if the 0th to 9th symbols in the regular time slot can be used for PSCCH or PSSCH transmission, then the number of PRBs contained in a sub-channel in the micro time slot can be the regular time slot. 5 times the number of PRBs contained in one sub-channel. In this way, it can be ensured that the code rate of a TB is close when sending on regular time slots and micro time slots.

In some embodiments, in the third configuration mode, for the PSSCH sent on the mini-slot, and the number of sub-channels occupied by the PSSCH is a preset number, both the terminal and the receiving terminal are configured according to the regular time slot. Determine the number of REs occupied by the second-order SCI. Correspondingly, the configuration information also includes the configuration information of the regular time slots. The configuration information of the regular time slots is used to determine that the physical sidelink shared channel is sent on the micro time slot and the number of subchannels occupied by the physical sidelink shared channel is the preset number. When, the number of resources occupied by the second-order sidelink control information. Then the configuration information of the regular time slot includes the number of resources available for physical sidelink shared channel transmission in the preset number of sub-channels on the regular time slot and the number of resources used for one physical sidelink control channel and the physical sidelink control channel in the regular time slot. The number of resources sent by the demodulation reference signal.

Correspondingly, if the configuration information of the regular time slot is also used to determine the size of the transport block, the configuration information of the regular time slot includes the demodulation reference signal configuration on the regular time slot, the configuration of the number of side row symbols on the regular time slot, and the configuration of the regular time slot. The demodulation reference signal configuration of the physical sidelink shared channel on the time slot, the number of physical resource blocks that can be used for physical sidelink shared channel transmission in a preset number of sub-channels on a regular time slot.

In some embodiments, regular time slots may reserve resources within mini-slots, or resources within micro-slots may reserve resources within regular time slots. Correspondingly, the sidelink control information used to indicate reserved resources in sidelink transmission includes fourth indication information, which is used to indicate that the reserved resources are located in the mini-slot or in the regular time slot. .

In some embodiments, the downlink control information in sidelink transmission also includes fifth indication information, and the fifth indication information is used to indicate whether the currently scheduled time slot is a mini-slot or a regular time slot.

S202. The terminal device determines the resource pool according to the configuration information.

In this step, after obtaining the configuration information sent by the network device, the terminal device can determine the resource pool according to the configuration information during sidelink transmission.

It should be noted that the embodiment of the present application does not elaborate on how to determine the resource pool, and the determination can be based on the configuration method in step S201.

In this application, a communication method is provided in which micro-time slots and regular time slots coexist on the same carrier. Through the method proposed in this application, micro-time slots and regular time slots can belong to different time-division resource pools. Alternatively, the micro time slots may belong to different frequency division resource pools from the regular time slots, or the micro time slots may be configured in the same resource pool as the regular time slots. If the micro-time slot and the regular time slot belong to different frequency division resource pools or belong to a unified resource pool, the resources used by the station in the micro-time slot are located at the position of the PSFCH symbol. Through this method, one carrier can support regular time slots and further support micro-time slots, thereby reducing the delay of sidelink transmission and increasing the chance of sidelink transmission within a time slot.

In the communication method provided by the embodiment of the present application, the terminal device determines the resource pool according to the configuration information during sidelink transmission, and the configuration information includes the configuration mode of micro time slots and regular time slots. In this way, the terminal device determines the resource pool according to the configuration method of micro-time slots and regular time slots, thereby ensuring the coexistence of regular time slots and micro-time slots.

On the basis of the above embodiments, the configuration methods of micro time slots and regular time slots can be obtained from preconfiguration information or from configuration information sent by network devices. The following provides a way for a network device to provide configuration information to a terminal device so that the terminal device determines a resource pool. Figure 16 is a signaling interaction diagram of a communication method provided by an embodiment of the present application. As shown in Figure 16, the method includes:

S301. The network device determines configuration information, and the configuration information includes the configuration methods of micro-time slots and regular time slots.

S302. The network device sends configuration information to the terminal device.

S303. The terminal device determines the resource pool according to the configuration information.

The technical terms, technical effects, technical features, and optional implementation modes of S301-S303 can be understood with reference to S201-S202 shown in Figure 13. The repeated content will not be repeated here.

Those of ordinary skill in the art can understand that all or part of the steps to implement the above method embodiments can be completed through hardware related to program information. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, It includes the steps of the above method embodiment; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Figure 17 is a schematic structural diagram of a communication device provided by an embodiment of the present application. The communication device can be implemented by software, hardware, or a combination of both, to execute the communication method on the terminal device side in the above embodiment. As shown in Figure 17, the communication device 400 includes: an acquisition module 401 and a processing module 402.

The acquisition module 401 is used to obtain the configuration information sent by the network device. The configuration information includes the configuration methods of micro-time slots and regular time slots;

The processing module 402 is used to determine the resource pool according to the configuration information.

In an optional implementation, the configuration information is configured or pre-configured by the network device or defined by a standard.

In an optional implementation, the resource pool is used for sidelink transmission, and the sidelink transmission is sidelink transmission based at least on mini-slots.

In an optional implementation, the configuration method includes that micro-time slots and regular time slots exist in different time-division resource pools.

In an optional implementation, the configuration information also includes first indication information, and the first indication information is used to indicate the minimum time domain granularity of the resource pool.

In an optional implementation, if some symbols in the regular time slot are configured as a resource pool with micro-time slots as the minimum resource granularity, then the remaining symbols in the regular time slots are also configured as a resource pool with micro-time slots as the minimum resource granularity. Resource pool at resource granularity.

In an optional implementation, the configuration information also includes second indication information and third indication information. The second indication information is used to indicate the location of the regular time slot where the mini-time slot belonging to the resource pool is located. The third indication information The information is used to indicate the position of the mini-slots belonging to the resource pool within the regular time slots.

In an optional implementation, the second indication information includes bitmap information, and the third indication information includes an index value or a plurality of positioning parameters, and the plurality of positioning parameters include the number of mini-slots belonging to the resource pool in the regular time slot. The starting point parameter and the length parameter of the mini-slot belonging to the resource pool.

In an optional implementation, the configuration method includes that micro time slots and regular time slots exist in different frequency division resource pools.

In an optional implementation, the configuration method includes mini-slots and regular time slots existing in the same resource pool.

In an optional implementation, the configuration information also includes the configuration information of the micro-slot. The configuration information of the micro-slot includes that the length of the micro-slot is two characters, and that the micro-slot is located in a side row slot. On the third to last and second to last symbols.

In an optional implementation, the configuration information of the micro-slot also includes that the frequency domain resources occupied by the micro-slot do not overlap with the frequency domain resources occupied by the physical sidelink feedback channel existing on the same symbol.

In an optional implementation, the configuration information of the micro-slot also includes that the automatic gain control symbols of the physical sidelink control channel and the physical sidelink shared channel sent in the micro-slot are located at the penultimate position of the next sidelink time slot. on four symbols.

In an optional implementation, the transmission time of the physical sidelink control channel and the physical sidelink shared channel sent in the micro-slot in the fourth to last symbol is no later than the preset time, and the preset time is the penultimate time. Ending moment of four symbols.

In an optional implementation, the physical sidelink control channel sent in the mini-slot occupies two symbols and a preset number of physical resource blocks.

In an optional implementation, the configuration information of the mini-slot also includes the automatic gain control symbol of the physical sidelink control channel and the physical sidelink shared channel sent in the mini-slot, which is located in the third to last sidelink slot. symbol and takes up the entire third to last symbol.

In an optional implementation, the physical sidelink control channel sent on symbols other than micro-slots in regular time slots is used to indicate reserving resources on micro-slots for retransmission of the same transport block or Another new transmission of the transport block.

In an optional implementation manner, the number of physical resource blocks included in one sub-channel in the mini-slot is greater than the number of physical resource blocks included in one sub-channel in the regular time slot.

In an optional implementation, the configuration information also includes configuration information of regular time slots. The configuration information of regular time slots is used to determine whether the physical sidelink shared channel is transmitted on the micro time slot and occupied by the physical sidelink shared channel. When the number of sub-channels is the preset number, the number of resources occupied by the second-order sidelink control information.

In an optional implementation, the configuration information of the regular time slot includes the number of resources available for physical sidelink shared channel transmission in a preset number of sub-channels on the regular time slot and the number of resources available for one physical sidelink transmission in the regular time slot. The number of resources used to transmit demodulation reference signals for control channels and physical sidelink control channels.

In an optional implementation, the configuration information of the regular time slot is also used to determine the size of the transport block.

In an optional implementation, the configuration information of the regular time slot includes the demodulation reference signal configuration on the regular time slot, the configuration of the number of sidelink symbols on the regular time slot, and the configuration of the physical sidelink shared channel on the regular time slot. Demodulation reference signal configuration, the number of physical resource blocks that can be used for physical sidelink shared channel transmission in a preset number of sub-channels on a regular time slot.

In an optional implementation, the sidelink control information used to indicate reserved resources in sidelink transmission includes fourth indication information, and the fourth indication information is used to indicate that the reserved resources are located in micro-time. slot or in a regular time slot.

In an optional implementation, the downlink control information in sidelink transmission includes fifth indication information, and the fifth indication information is used to indicate whether the currently scheduled time slot is a mini-slot or a regular time slot.

The communication device provided by the embodiment of the present application can perform the actions of the communication method on the terminal device side in the above embodiment. Its implementation principles and technical effects are similar and will not be described again here.

Figure 18 is a schematic structural diagram of another communication device provided by an embodiment of the present application. The communication device can be implemented by software, hardware, or a combination of both, to execute the communication method on the network device side in the above embodiment. As shown in Figure 18, the communication device 500 includes: a processing module 501 and a sending module 502.

Processing module 501, used to determine configuration information.

The sending module 502 is used to send configuration information. The configuration information includes the configuration mode of micro time slots and regular time slots. The configuration information is used to determine the resource pool.

In an optional implementation, the resource pool is used for sidelink transmission, and the sidelink transmission is sidelink transmission based at least on mini-slots.

In an optional implementation, the configuration method includes that micro-time slots and regular time slots exist in different time-division resource pools.

In an optional implementation, the configuration information also includes first indication information, and the first indication information is used to indicate the minimum time domain granularity of the resource pool.

In an optional implementation, if some symbols in the regular time slot are configured as a resource pool with micro-time slots as the minimum resource granularity, then the remaining symbols in the regular time slots are also configured as a resource pool with micro-time slots as the minimum resource granularity. Resource pool at resource granularity.

In an optional implementation, the configuration information also includes second indication information and third indication information. The second indication information is used to indicate the location of the regular time slot where the mini-time slot belonging to the resource pool is located. The third indication information The information is used to indicate the position of the mini-slots belonging to the resource pool within the regular time slots.

In an optional implementation, the second indication information includes bitmap information, and the third indication information includes an index value or a plurality of positioning parameters, and the plurality of positioning parameters include the number of mini-slots belonging to the resource pool in the regular time slot. The starting point parameter and the length parameter of the mini-slot belonging to the resource pool.

In an optional implementation, the configuration method includes that micro time slots and regular time slots exist in different frequency division resource pools.

In an optional implementation, the configuration method includes mini-slots and regular time slots existing in the same resource pool.

In an optional implementation, the configuration information also includes the configuration information of the micro-slot. The configuration information of the micro-slot includes that the length of the micro-slot is two characters, and that the micro-slot is located in a side row slot. On the third to last and second to last symbols.

In an optional implementation, the configuration information of the micro-slot also includes that the frequency domain resources occupied by the micro-slot do not overlap with the frequency domain resources occupied by the physical sidelink feedback channel existing on the same symbol.

In an optional implementation, the configuration information of the micro-slot also includes that the automatic gain control symbols of the physical sidelink control channel and the physical sidelink shared channel sent in the micro-slot are located at the penultimate position of the next sidelink time slot. on four symbols.

In an optional implementation, the transmission time of the physical sidelink control channel and the physical sidelink shared channel sent in the micro-slot in the fourth to last symbol is no later than the preset time, and the preset time is the penultimate time. Ending moment of four symbols.

In an optional implementation, the physical sidelink control channel sent in the mini-slot occupies two symbols and a preset number of physical resource blocks.

In an optional implementation, the configuration information of the mini-slot also includes the automatic gain control symbol of the physical sidelink control channel and the physical sidelink shared channel sent in the mini-slot, which is located in the third to last sidelink slot. symbol and takes up the entire third to last symbol.

In an optional implementation, the physical sidelink control channel sent on symbols other than micro-slots in regular time slots is used to indicate reserving resources on micro-slots for retransmission of the same transport block or Another new transmission of the transport block.

In an optional implementation manner, the number of physical resource blocks included in one sub-channel in the mini-slot is greater than the number of physical resource blocks included in one sub-channel in the regular time slot.

In an optional implementation, the configuration information also includes configuration information of regular time slots. The configuration information of regular time slots is used to determine whether the physical sidelink shared channel is transmitted on the micro time slot and occupied by the physical sidelink shared channel. When the number of sub-channels is the preset number, the number of resources occupied by the second-order sidelink control information.

In an optional implementation, the configuration information of the regular time slot includes the number of resources available for physical sidelink shared channel transmission in a preset number of sub-channels on the regular time slot and the number of resources available for one physical sidelink transmission in the regular time slot. The number of resources used to transmit demodulation reference signals for control channels and physical sidelink control channels.

In an optional implementation, the configuration information of the regular time slot is also used to determine the size of the transport block.

In an optional implementation, the configuration information of the regular time slot includes the demodulation reference signal configuration on the regular time slot, the configuration of the number of sidelink symbols on the regular time slot, and the configuration of the physical sidelink shared channel on the regular time slot. Demodulation reference signal configuration, the number of physical resource blocks that can be used for physical sidelink shared channel transmission in a preset number of sub-channels on a regular time slot.

In an optional implementation, the sidelink control information used to indicate reserved resources in sidelink transmission includes fourth indication information, and the fourth indication information is used to indicate that the reserved resources are located in micro-time. slot or in a regular time slot.

In an optional implementation, the downlink control information in sidelink transmission includes fifth indication information, and the fifth indication information is used to indicate whether the currently scheduled time slot is a mini-slot or a regular time slot.

The communication device provided by the embodiment of the present application can perform the actions of the communication method on the network device side in the above embodiment. Its implementation principles and technical effects are similar and will not be described again here.

Figure 19 is a schematic structural diagram of an electronic device provided by an embodiment of the present application. As shown in Figure 19, the electronic device may include: a processor 61 (such as a CPU), a memory 62, a receiver 63 and a transmitter 64; the receiver 63 and the transmitter 64 are coupled to the processor 61, and the processor 61 controls the receiver 63, the processor 61 controls the sending action of the transmitter 64. The memory 62 may include high-speed RAM memory, and may also include non-volatile memory NVM, such as at least one disk memory. Various information may be stored in the memory 62 to complete various processing functions and implement the methods of the embodiments of the present application. step. Optionally, the electronic device involved in the embodiment of this application may also include: a power supply 65, a communication bus 66, and a communication port 66. The receiver 63 and the transmitter 64 can be integrated in the transceiver of the electronic device, or they can be independent transceiver antennas on the electronic device. The communication bus 66 is used to implement communication connections between components. The above-mentioned communication port 66 is used to realize connection and communication between the electronic device and other peripheral devices.

In this embodiment of the present application, the above-mentioned memory 62 is used to store computer executable program code, and the program code includes information; when the processor 61 executes the information, the information causes the processor 61 to perform the processing actions on the terminal device side in the above method embodiment, The transmitter 64 is caused to perform the sending action on the terminal device side in the above method embodiment, and the receiver 63 is made to perform the receiving action on the terminal device side in the above method embodiment. The implementation principles and technical effects are similar and will not be described again here.

Or, when the processor 61 executes the information, the information causes the processor 61 to perform the processing action on the network device side in the above method embodiment, causes the sender 64 to perform the sending action on the network device side in the above method embodiment, and causes the receiver 63 to perform The implementation principles and technical effects of the receiving action on the network device side in the above method embodiment are similar and will not be described again here.

An embodiment of the present application also provides a communication system, including a terminal device and a network device, to perform the above communication method.

An embodiment of the present application also provides a chip, including a processor and an interface. The interface is used to input and output data or instructions processed by the processor. The processor is used to execute the method provided in the above method embodiment. The chip can be used in terminal equipment or network equipment.

The invention also provides a computer-readable storage medium. The computer-readable storage medium may include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory) ), magnetic disks or optical disks and other media that can store program codes. Specifically, the computer-readable storage medium stores program information, and the program information is used in the above communication method.

Embodiments of the present application also provide a program, which, when executed by a processor, is used to perform the communication method provided by the above method embodiments.

Embodiments of the present application also provide a program product, such as a computer-readable storage medium. Instructions are stored in the program product. When the program product is run on a computer, it causes the computer to execute the communication method provided by the above method embodiment.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. A computer program product includes one or more computer instructions. When computer program instructions are loaded and executed on a computer, processes or functions according to embodiments of the invention are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. Computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, computer instructions may be transmitted from a website, computer, server, or data center via a wired ( For example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means to transmit to another website, computer, server or data center. Computer-readable storage media can be any available media that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated. Available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), etc.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present invention. scope.

Claims (101)

1. A method of communication, comprising:

   the terminal equipment determines a resource pool according to configuration information, wherein the configuration information comprises configuration modes of micro time slots and conventional time slots.
2. Method according to claim 1, characterized in that the configuration information is configured or preconfigured by a network device or defined by a standard.
3. The method according to claim 1 or 2, characterized in that the resource pool is used for side-link transmissions, which are at least micro-slot based side-link transmissions.
4. A method according to any of claims 1-3, characterized in that the configuration comprises a pool of resources where the micro-slots and the regular slots are present in different time divisions.
5. The method of claim 4, wherein the configuration information further includes first indication information, the first indication information being used to indicate a minimum time domain granularity of the resource pool.
6. The method of claim 5, wherein if a portion of the symbols in the regular time slot are configured as a resource pool with the minislot as a minimum resource granularity, then the remaining symbols in the regular time slot are also configured as a resource pool with the minislot as a minimum resource granularity.
7. The method of claim 4, wherein the configuration information further includes second indication information and third indication information, the second indication information is used for indicating a location of a regular time slot in which a micro time slot belonging to the resource pool is located, and the third indication information is used for indicating a location of the micro time slot belonging to the resource pool in the regular time slot.
8. The method of claim 7, wherein the second indication information comprises bitmap information, and the third indication information comprises an index value or a plurality of positioning parameters, the plurality of positioning parameters comprising a starting point parameter of the minislots belonging to the resource pool in a regular time slot and a length parameter of the minislots belonging to the resource pool.
9. A method according to any of claims 1-3, characterized in that the configuration comprises a pool of resources where the micro-slots and the regular slots are present in different frequency divisions.
10. A method according to any of claims 1-3, characterized in that the configuration comprises that the micro-slots and the regular slots are present in the same resource pool.
11. The method according to claim 9 or 10, wherein the configuration information further includes configuration information of the micro-slot, the configuration information of the micro-slot includes that the micro-slot has a length of two characters, and the micro-slot is located on the third last symbol and the second last symbol of one side slot.
12. The method of claim 11, wherein the configuration information of the minislot further comprises that frequency domain resources occupied by the minislot do not overlap with frequency domain resources occupied by a physical sidelink feedback channel present on the same symbol.
13. The method of claim 11 wherein the configuration information for the minislot further comprises automatic gain control symbols for physical sidestream control channels and physical sidestream shared channels transmitted in the minislot being located on the fourth last symbol of the next sidestream slot.
14. The method of claim 13, wherein the transmission time of the physical sidelink control channel and the physical sidelink shared channel transmitted in the minislot is no later than a preset time in the fourth last symbol, and the preset time is an end time of the fourth last symbol.
15. The method according to claim 13 or 14, wherein the physical sidelink control channel transmitted in the minislot occupies two symbols and occupies a predetermined number of physical resource blocks.
16. The method of claim 9 or 10, wherein the configuration information of the minislot further comprises that the automatic gain control symbols of the physical sidelink control channel and the physical sidelink shared channel transmitted in the minislot are located on the third last symbol of the sidelink slot and occupy the entire third last symbol.
17. The method of claim 10, wherein a physical sidelink control channel transmitted on a symbol other than a minislot in the regular time slot is used to indicate that resources on the reserved minislot are used for retransmission of the same transport block or new transmission of another transport block.
18. The method of claim 17, wherein one subchannel within the minislot comprises a greater number of physical resource blocks than one subchannel within the regular slot.
19. The method of claim 10, wherein the configuration information further includes configuration information of the regular time slot, where the configuration information of the regular time slot is used to determine a number of resources occupied by second-order side uplink control information when a physical side shared channel is transmitted on the micro time slot and a number of sub-channels occupied by the physical side shared channel is a preset number.
20. The method of claim 19 wherein the configuration information for the regular time slot includes the number of resources available for transmission of the physical side-by-side shared channel in a preset number of sub-channels in the regular time slot and the number of resources for transmission of demodulation reference signals for one physical side-by-side control channel and the physical side-by-side control channel in the regular time slot.
21. The method of claim 19, wherein the configuration information of the regular time slots is further used to determine a transport block size.
22. The method of claim 19 wherein the configuration information for the regular time slots includes a demodulation reference signal configuration for the regular time slots, a sidelink symbol number configuration for the regular time slots, and a demodulation reference signal configuration for the physical sidelink shared channels for the regular time slots, and wherein the number of physical resource blocks available for transmission by the physical sidelink shared channels in a predetermined number of sub-channels for one regular time slot.
23. The method according to claim 10, wherein side uplink control information for indicating reserved resources in side uplink transmission includes fourth indication information for indicating that reserved resources are located in the micro slot or in the regular slot.
24. The method of claim 10, wherein downlink control information in the side-link transmission includes fifth indication information indicating whether the micro-slot or the regular-slot is currently scheduled.
25. A method of communication, comprising:

    the network equipment sends configuration information, wherein the configuration information comprises configuration modes of micro time slots and conventional time slots, and the configuration information is used for determining a resource pool.
26. The method of claim 25, wherein the resource pool is used for side-link transmissions, the side-link transmissions being at least micro-slot based side-link transmissions.
27. The method according to claim 25 or 26, wherein the configuration comprises a pool of resources where the micro-slots and the regular slots exist in different time divisions.
28. The method of claim 27, wherein the configuration information further includes first indication information, the first indication information being used to indicate a minimum time domain granularity of the resource pool.
29. The method of claim 28, wherein if a portion of the symbols in the regular time slot are configured as a resource pool with the minislot as a minimum resource granularity, then the remaining symbols in the regular time slot are also configured as a resource pool with the minislot as a minimum resource granularity.
30. The method of claim 27, wherein the configuration information further includes second indication information and third indication information, the second indication information is used for indicating a location of a regular time slot in which a micro time slot belonging to the resource pool is located, and the third indication information is used for indicating a location of the micro time slot belonging to the resource pool in the regular time slot.
31. The method of claim 30, wherein the second indication information comprises bitmap information, and wherein the third indication information comprises an index value or a plurality of positioning parameters, the plurality of positioning parameters comprising a starting point parameter of the minislots belonging to the resource pool in a regular time slot and a length parameter of the minislots belonging to the resource pool.
32. The method according to claim 25 or 26, wherein the configuration comprises a pool of resources where the minislot and the regular slot exist in different frequency divisions.
33. The method of claim 25 or 26, wherein the configuration comprises the minislot and the regular time slot being present in the same resource pool.
34. The method of claim 32 or 33, wherein the configuration information further includes configuration information of the minislot, the configuration information of the minislot includes that the minislot is two characters long, and the minislot is located on third last and second last symbols of one sidestream slot.
35. The method of claim 34 wherein the configuration information of the minislot further comprises that frequency domain resources occupied by the minislot do not overlap with frequency domain resources occupied by physical sidelink feedback channels present on the same symbol.
36. The method of claim 34 wherein the configuration information for the minislot further comprises automatic gain control symbols for physical sidestream control channels and physical sidestream shared channels transmitted in the minislot being located on the fourth last symbol of the next sidestream slot.
37. The method of claim 36, wherein the transmission time of the physical sidelink control channel and the physical sidelink shared channel transmitted in the minislot is no later than a preset time in the fourth last symbol, and the preset time is an end time of the fourth last symbol.
38. The method according to claim 36 or 37, wherein the physical sidelink control channel transmitted in the minislot occupies two symbols and occupies a predetermined number of physical resource blocks.
39. The method of claim 32 or 33, wherein the configuration information of the minislot further comprises that the automatic gain control symbols of the physical sidelink control channel and the physical sidelink shared channel transmitted in the minislot are located on the third last symbol of the sidelink slot and occupy the entire third last symbol.
40. The method of claim 33, wherein a physical sidelink control channel transmitted on a symbol other than a minislot in the regular time slot is used to indicate that resources on the reserved minislot are used for retransmission of the same transport block or new transmission of another transport block.
41. The method of claim 40, wherein one subchannel within the minislot contains a greater number of physical resource blocks than one subchannel within the regular slot.
42. The method of claim 33 wherein the configuration information further includes configuration information of the regular time slot, the configuration information of the regular time slot is used for determining a number of resources occupied by second-order side uplink control information when a physical side shared channel is transmitted on the micro time slot and a number of sub-channels occupied by the physical side shared channel is a preset number.
43. The method of claim 42, wherein the configuration information for the regular time slot includes a number of resources available for transmission of the physical side-by-side shared channel in a preset number of sub-channels in the regular time slot and a number of resources for transmission of demodulation reference signals for one physical side-by-side control channel and the physical side-by-side control channel in the regular time slot.
44. The method of claim 42, wherein the configuration information of the regular time slots is further used to determine a transport block size.
45. The method of claim 42, wherein the configuration information for the regular time slots includes a demodulation reference signal configuration for the regular time slots, a sidelink symbol number configuration for the regular time slots, and a demodulation reference signal configuration for the physical sidelink shared channel for the regular time slots, and wherein the number of physical resource blocks available for transmission by the physical sidelink shared channel in a predetermined number of sub-channels for one regular time slot.
46. The method of claim 33, wherein side uplink control information in the side uplink transmission for indicating reserved resources includes fourth indication information, wherein the fourth indication information is used for indicating that reserved resources are located in the micro slot or in the regular slot.
47. The method of claim 33, wherein downlink control information in the side-link transmission includes fifth indication information indicating whether the micro-slot or the regular slot is currently scheduled.
48. A communication device, comprising:

    and the processing module is used for determining a resource pool according to configuration information, wherein the configuration information comprises configuration modes of micro time slots and conventional time slots.
49. The apparatus of claim 48, wherein the configuration information is configured or preconfigured by a network device or defined by a standard.
50. The apparatus of claim 48 or 49, wherein the resource pool is used for side-link transmissions, the side-link transmissions being at least micro-slot based side-link transmissions.
51. The apparatus of any of claims 48-50, wherein the configuration comprises a pool of resources where the minislot and the regular slot exist in different time divisions.
52. The apparatus of claim 51, wherein the configuration information further comprises first indication information, the first indication information being used to indicate a minimum time domain granularity of the resource pool.
53. The apparatus of claim 52, wherein if a portion of symbols in the regular time slot are configured as a resource pool with the minislot as a minimum resource granularity, then remaining symbols in the regular time slot are also configured as a resource pool with the minislot as a minimum resource granularity.
54. The apparatus of claim 51, wherein the configuration information further includes second indication information and third indication information, the second indication information is used for indicating a location of a regular time slot in which a micro time slot belonging to a resource pool is located, and the third indication information is used for indicating a location of the micro time slot belonging to the resource pool in the regular time slot.
55. The apparatus of claim 54, wherein the second indication information comprises bitmap information, and the third indication information comprises an index value or a plurality of positioning parameters, the plurality of positioning parameters comprising a starting point parameter of the minislots belonging to the resource pool in a regular time slot and a length parameter of the minislots belonging to the resource pool.
56. The apparatus of any of claims 48-50, wherein the configuration comprises a pool of resources where the minislot and the regular slot exist in different frequency divisions.
57. The apparatus of any of claims 48-50, wherein the configuration comprises the minislot and the regular time slot being present in a same resource pool.
58. The apparatus of claim 56 or 57, wherein the configuration information further includes configuration information for the minislot, the configuration information for the minislot including that the minislot is two characters long, and the minislot is located on third last and second last symbols of one sideslot.
59. The apparatus of claim 58, wherein the configuration information for the minislot further comprises that frequency domain resources occupied by the minislot do not overlap with frequency domain resources occupied by physical sidelink feedback channels present on the same symbol.
60. The apparatus of claim 58 wherein the configuration information for the minislot further comprises automatic gain control symbols for physical sidelink control channels and physical sidelink shared channels transmitted in the minislot being located on the fourth last symbol of the next sidelink slot.
61. The apparatus of claim 60, wherein the physical sideline control channel and the physical sideline shared channel transmitted in the minislot are transmitted in the fourth-to-last symbol at a time not later than a preset time, the preset time being an end time of the fourth-to-last symbol.
62. The apparatus of claim 60 or 61, wherein the physical sidelink control channel transmitted in the minislot occupies two symbols and occupies a predetermined number of physical resource blocks.
63. The apparatus of claim 56 or 57 wherein the configuration information for a minislot further includes automatic gain control symbols for physical sidelink control channels and physical sidelink shared channels transmitted in the minislot being located on and occupying the third last symbol of a sidelink slot.
64. The apparatus of claim 57, wherein a physical sidelink control channel transmitted on a symbol other than a minislot in the regular time slot is used to indicate that resources on a reserved minislot are used for retransmission of the same transport block or new transmission of another transport block.
65. The apparatus of claim 64, wherein one subchannel within the minislot comprises a greater number of physical resource blocks than one subchannel within the regular slot.
66. The apparatus of claim 57, wherein the configuration information further includes configuration information of the regular time slot, the configuration information of the regular time slot is used for determining a number of resources occupied by second-order side uplink control information when a physical side shared channel is transmitted on the micro time slot and a number of sub-channels occupied by the physical side shared channel is a preset number.
67. The apparatus of claim 66, wherein the configuration information for the regular time slot comprises a number of resources available for transmission of the physical side-by-side shared channel in a preset number of subchannels in the regular time slot and a number of resources for transmission of demodulation reference signals for one physical side-by-side control channel and the physical side-by-side control channel in the regular time slot.
68. The apparatus of claim 66, wherein the configuration information for the regular time slots is further used to determine a transport block size.
69. The apparatus of claim 68, wherein the configuration information for the regular time slots comprises a demodulation reference signal configuration for the regular time slots, a sidelink symbol number configuration for the regular time slots, and a demodulation reference signal configuration for the physical sidelink shared channels for the regular time slots, wherein the number of physical resource blocks available for transmission by the physical sidelink shared channels in a predetermined number of sub-channels for one regular time slot.
70. The apparatus of claim 57, wherein side uplink control information in the side uplink transmission indicating reserved resources comprises fourth indication information indicating that reserved resources are located in the micro-slot or in the regular slot.
71. The apparatus of claim 57, wherein downlink control information in a side downlink transmission includes fifth indication information indicating whether the micro-slot or the regular slot is currently scheduled.
72. A communication device, comprising:

    the device comprises a sending module, a receiving module and a resource pool determining module, wherein the sending module is used for sending configuration information, the configuration information comprises a configuration mode of a micro time slot and a conventional time slot, and the configuration information is used for determining the resource pool.
73. The apparatus of claim 72, wherein the resource pool is used for side-link transmissions that are at least micro-slot based side-link transmissions.
74. The apparatus of claim 72 or 73, wherein the configuration comprises a pool of resources where the minislots and the regular slots exist in different time divisions.
75. The apparatus of claim 74, wherein the configuration information further comprises first indication information, the first indication information being used to indicate a minimum time domain granularity of the resource pool.
76. The apparatus of claim 75, wherein if a portion of symbols in the regular time slot are configured as a resource pool with the minislot as a minimum resource granularity, then remaining symbols in the regular time slot are also configured as a resource pool with the minislot as a minimum resource granularity.
77. The apparatus of claim 74, wherein the configuration information further comprises second indication information and third indication information, the second indication information is used for indicating a location of a regular time slot in which a micro time slot belonging to a resource pool is located, and the third indication information is used for indicating a location of the micro time slot belonging to the resource pool in the regular time slot.
78. The apparatus of claim 77, wherein the second indication information comprises bitmap information, and the third indication information comprises an index value or a plurality of positioning parameters, the plurality of positioning parameters comprising a starting point parameter of the minislots belonging to a resource pool in a regular time slot and a length parameter of the minislots belonging to a resource pool.
79. The apparatus of claim 72 or 73, wherein the configuration comprises a pool of resources where the minislots and the regular slots exist in different frequency divisions.
80. The apparatus of claim 72 or 73, wherein the configuration comprises the minislots and the regular slots being in a same resource pool.
81. The apparatus of claim 79 or 80, wherein the configuration information further includes configuration information for the minislot, the configuration information for the minislot including that the minislot is two characters long, and the minislot is located on third last and second last symbols of one sideslot.
82. The apparatus of claim 81, wherein the configuration information for the minislot further comprises that frequency domain resources occupied by the minislot do not overlap with frequency domain resources occupied by physical side feedback channels present on the same symbol.
83. The apparatus of claim 81, wherein the configuration information for the minislot further comprises automatic gain control symbols for physical sidelink control channels and physical sidelink shared channels transmitted in the minislot being located on a fourth last symbol of a next sidelink slot.
84. The apparatus of claim 83, wherein the physical sidelink control channel and the physical sidelink shared channel transmitted in the minislot are transmitted in the fourth-to-last symbol at a time not later than a preset time, the preset time being an end time of the fourth-to-last symbol.
85. The apparatus of claim 83 or 84, wherein the physical sidelink control channel transmitted in the minislot occupies two symbols and occupies a predetermined number of physical resource blocks.
86. The apparatus of claim 79 or 80, wherein the configuration information of a minislot further includes automatic gain control symbols for physical sidelink control channels and physical sidelink shared channels transmitted in the minislot being located on and occupying the entire third last symbol of the sidelink slot.
87. The apparatus of claim 80, wherein a physical sidelink control channel transmitted on a symbol other than a minislot in the regular time slot is used to indicate that resources on a reserved minislot are used for retransmission of the same transport block or new transmission of another transport block.
88. The apparatus of claim 87, wherein one subchannel within the minislot comprises a greater number of physical resource blocks than one subchannel within the regular slot.
89. The apparatus of claim 80, wherein the configuration information further includes configuration information of the regular time slot, the configuration information of the regular time slot is used to determine a number of resources occupied by second-order side uplink control information when a physical side shared channel is transmitted on the micro time slot and a number of sub-channels occupied by the physical side shared channel is a preset number.
90. The apparatus of claim 89, wherein the configuration information for the regular time slot comprises a number of resources available for transmission of the physical side-by-side shared channel in a preset number of subchannels in the regular time slot and a number of resources for transmission of demodulation reference signals for one physical side-by-side control channel and the physical side-by-side control channel in the regular time slot.
91. The apparatus of claim 89, wherein configuration information for the regular time slots is further used to determine a transport block size.
92. The apparatus of claim 89, wherein the configuration information for the regular time slots comprises a demodulation reference signal configuration for the regular time slots, a sidelink symbol number configuration for the regular time slots, and a demodulation reference signal configuration for physical sidelink shared channels for the regular time slots, wherein the number of physical resource blocks available for transmission by the physical sidelink shared channels in a predetermined number of subchannels for a regular time slot.
93. The apparatus of claim 80, wherein side uplink control information in a side uplink transmission for indicating reserved resources comprises fourth indication information for indicating that reserved resources are located in the micro-slot or in the regular slot.
94. The apparatus of claim 80, wherein downlink control information in a side downlink transmission includes fifth indication information indicating whether the micro-slot or the regular slot is currently scheduled.
95. A terminal device, comprising: a memory and a processor;

    The memory is used for storing executable instructions of the processor;

    the processor is configured to perform the method of any of claims 1-24 via execution of the executable instructions.
96. A network device, comprising: a memory and a processor;

    the memory is used for storing executable instructions of the processor;

    the processor is configured to perform the method of any of claims 25-47 via execution of the executable instructions.
97. A chip, comprising: a processor and a memory;

    the processor being operative to invoke and run a computer program from the memory, causing a device on which the chip is mounted to perform the method of any of claims 1-47.
98. A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1-47.
99. A computer program product comprising program instructions involved which, when executed, implement the method of any one of claims 1-47.
100. A computer program, characterized in that the computer program causes a computer to perform the method of any of claims 1-47.
101. A communication system, comprising: the communication device of any one of claims 48-71, and the communication device of any one of claims 72-94.