CN114402693A - Wireless communication method and terminal equipment - Google Patents

Wireless communication method and terminal equipment Download PDF

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Publication number
CN114402693A
CN114402693A CN201980098489.1A CN201980098489A CN114402693A CN 114402693 A CN114402693 A CN 114402693A CN 201980098489 A CN201980098489 A CN 201980098489A CN 114402693 A CN114402693 A CN 114402693A
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data
time unit
terminal
priority
determining
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CN201980098489.1A
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CN114402693B (en
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赵振山
卢前溪
林晖闵
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A method and a terminal device for wireless communication, the method comprising: the method comprises the steps that a first terminal receives first data sent by a second terminal on a first time unit; the first terminal determines to send feedback information of the first data to the second terminal device in a second time unit, where the first time unit is a time unit in a first time unit set, the first time unit set includes at least one time unit, and the feedback information corresponding to data transmitted in the first time unit set is transmitted in the second time unit; and the first terminal determines a candidate resource set for transmitting second data according to the first time unit set, wherein the second data is data to be transmitted by the first terminal.

Description

Wireless communication method and terminal equipment Technical Field
The embodiment of the application relates to the field of communication, in particular to a wireless communication method and terminal equipment.
Background
The vehicle networking system is a Sidelink (SL) transmission technology based on a Long Term evolution vehicle to vehicle (Long Term evolution Device to Device, LTE D2D), and is different from a traditional method in which communication data is received or sent by a base station in an LTE system, and the vehicle networking system adopts a method of direct terminal-to-terminal communication, so that the vehicle networking system has higher spectral efficiency and lower transmission delay.
The Vehicle networking technology, Vehicle to other device (V2X) technology, is standardized in the third Generation Partnership Project (3 GPP) Rel-14, defining two modes of transmission: mode a and mode B.
Specifically, in mode a, the transmission resource of the terminal device is allocated by the base station, and the terminal device transmits data on the sidelink according to the resource allocated by the base station. The base station may allocate resources for single transmission to the terminal device, or may allocate resources for semi-static transmission to the terminal device. In mode B, the terminal device autonomously selects transmission resources on the sidelink resources. Specifically, the terminal device obtains an available transmission resource set in the resource pool by means of interception, and the terminal device randomly selects a resource from the available transmission resource set to perform data transmission.
In the car networking system, in order to improve transmission reliability, a side-line feedback channel is introduced, and under the condition that side-line feedback is activated, a receiving terminal can send Hybrid Automatic Repeat reQuest (HARQ) feedback information to a sending terminal, so that the sending terminal can determine whether to perform retransmission according to the HARQ feedback information. In this case, how to select resources in the mode B is a problem that needs to be solved.
Disclosure of Invention
The embodiment of the application provides a wireless communication method and terminal equipment, which are beneficial to avoiding the problem of resource conflict of data transmission.
In a first aspect, a method of wireless communication is provided, including: the method comprises the steps that a first terminal receives first data sent by a second terminal on a first time unit; the first terminal determines to send feedback information of the first data to the second terminal device in a second time unit, where the first time unit is a time unit in a first time unit set, the first time unit set includes at least one time unit, and the feedback information corresponding to data transmitted in the first time unit set is transmitted in the second time unit; and the first terminal determines a candidate resource set for transmitting second data according to the first time unit set, wherein the second data is data to be transmitted by the first terminal.
In a second aspect, a method of wireless communication is provided, including: the first terminal determines to send second data in a third time unit, wherein the second data is data to be sent by the first terminal; the first terminal receives first data sent by a second terminal on a first time unit before the third time unit; the first terminal determines to send feedback information of the first data to the second terminal device in a second time unit, where the first time unit is a time unit in a first time unit set, the first time unit set includes at least one time unit, and the feedback information corresponding to data transmitted in the first time unit set is transmitted in the second time unit; the first terminal determines whether to transmit the second data on the third time unit according to whether the first time unit and the third time unit belong to the same time unit set.
In a third aspect, a terminal device is provided, configured to perform the method in the first aspect or any possible implementation manner of the first aspect. In particular, the terminal device comprises means for performing the method of the first aspect described above or any possible implementation manner of the first aspect.
In a fourth aspect, there is provided a terminal device configured to perform the method of the second aspect or any possible implementation manner of the second aspect. In particular, the terminal device comprises means for performing the method of the second aspect described above or any possible implementation manner of the second aspect.
In a fifth aspect, a terminal device is provided, which includes: including a processor and memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, and executing the method in the first aspect or each implementation manner thereof.
In a sixth aspect, a terminal device is provided, which includes: including a processor and memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, and executing the method of the second aspect or each implementation mode thereof.
In a seventh aspect, a chip is provided for implementing the method in any one of the first to second aspects or its implementation manners.
Specifically, the chip includes: a processor configured to call and run the computer program from the memory, so that the device on which the chip is installed performs the method in any one of the first aspect to the second aspect or the implementation manners thereof.
In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, the computer program causing a computer to perform the method of any one of the first to second aspects or implementations thereof.
In a ninth aspect, there is provided a computer program product comprising computer program instructions to cause a computer to perform the method of any one of the first to second aspects or implementations thereof.
A tenth aspect provides a computer program that, when run on a computer, causes the computer to perform the method of any one of the first to second aspects or implementations thereof.
Based on the above technical scheme, when the terminal device has data to send, the candidate resource set of the data to be sent can be determined according to the time unit set to which the time unit of the received data that has not been fed back belongs, which is beneficial to avoiding the resource conflict problem between the feedback information of the data to be sent and the feedback information of the received data.
Drawings
Fig. 1 is a schematic diagram of an application scenario provided in an embodiment of the present application.
Fig. 2 is a schematic diagram of a specific implementation of mode B.
Fig. 3 is a schematic diagram of several communication modes between terminal devices.
Fig. 4 is a schematic diagram illustrating an example of side-line feedback.
Fig. 5 is a schematic diagram of a method of wireless communication provided by an embodiment of the present application.
Fig. 6 is a schematic diagram of another method of wireless communication provided by an embodiment of the application.
Fig. 7 is a schematic block diagram of a terminal device according to an embodiment of the present application.
Fig. 8 is a schematic block diagram of another terminal device provided in an embodiment of the present application.
Fig. 9 is a schematic block diagram of a communication device according to another embodiment of the present application.
Fig. 10 is a schematic block diagram of a chip provided in an embodiment of the present application.
Detailed Description
Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be understood that the technical solution of the embodiment of the present application may be applied to a Device to Device (D2D) communication system, for example, a vehicle networking system that performs D2D communication based on Long Term Evolution (LTE), or an NR-V2X system. Unlike the conventional LTE system in which communication data between terminals is received or transmitted through a network device (e.g., a base station), the car networking system adopts a terminal-to-terminal direct communication mode, and thus has higher spectral efficiency and lower transmission delay.
Alternatively, the communication System based on the car networking System may be a Global System for Mobile communication (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), an LTE System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication System, a 5G New Radio (NR) System, and the like.
The Network device in this embodiment may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or may be a Network device in a Mobile switching center, a relay Station, an Access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a Network side device (gNB) in an NR Network, or a Network device in a future evolved Public Land Mobile Network (PLMN), or the like.
The terminal device in the embodiment of the present application may be a terminal device capable of implementing D2D communication. For example, the terminal device may be a vehicle-mounted terminal device, or may also be a terminal device in an LTE system (LTE UE), a terminal device in an NR Network (NR UE), a terminal device in a Public Land Mobile Network (PLMN) that is an evolution in the future, and the like, and the embodiment of the present application is not limited.
The D2D communication technology can be applied to Vehicle-to-Vehicle (V2V) communication or Vehicle-to-other device (V2X) communication. In V2X communication, X may refer to any device with wireless receiving and transmitting capability, such as but not limited to a slow moving wireless device, a fast moving vehicle-mounted device, or a network control node with wireless transmitting and receiving capability. It should be understood that the embodiment of the present invention is mainly applied to the scenario of V2X communication, but may also be applied to any other D2D communication scenario, and the embodiment of the present invention is not limited in this respect.
Fig. 1 is a schematic diagram of an application scenario of an embodiment of the present application. Fig. 1 exemplarily shows one network device and two terminal devices, and optionally, the wireless communication system in the embodiment of the present application may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device, which is not limited in the embodiment of the present application.
Optionally, the wireless communication system may further include other Network entities such as a Mobile Management Entity (MME), a Serving Gateway (S-GW), a Packet Data Network Gateway (P-GW), and the like, or the wireless communication system may further include other Network entities such as a Session Management Function (SMF), a Unified Data Management (UDM), an Authentication Server Function (AUSF), and the like, which is not limited in this embodiment.
In the vehicle networking system, the terminal device can communicate in the mode a and the mode B.
Specifically, the terminal device 121 and the terminal device 122 can communicate through the D2D communication mode, and when the D2D communication is performed, the terminal device 121 and the terminal device 122 directly communicate through a D2D link, i.e., a SideLink (SL). In mode a, the transmission resource of the terminal device is allocated by the base station, and the terminal device may transmit data on SL according to the resource allocated by the base station. The base station may allocate resources for single transmission to the terminal device, or may allocate resources for semi-static transmission to the terminal device. In mode B, the terminal device autonomously selects transmission resources on the SL resources. Specifically, the terminal device obtains an available transmission resource in the resource pool by means of interception, or the terminal device randomly selects a transmission resource from the resource pool. As shown in fig. 2, when data arrives at time n, resource selection is required, specifically, the terminal device may perform resource selection within a resource selection window [ n + T1, n + T2] milliseconds according to a listening result in the past 1 second, where T1 ≦ 4; the selection of T1 is greater than the processing delay of the terminal device, the selection of T2 is determined according to the delay requirement of the service, and needs to be within the delay requirement range of the service, for example, if the delay requirement of the service is 50ms, 20< ═ T2< ═ 50, or if the delay requirement of the service is 100ms, 20< ═ T2< 100.
The process of the terminal equipment for selecting the resources in the resource selection window is as follows:
firstly, the terminal device sets all available resources in a resource selection window to a set A, and excludes the resources in the set A as follows:
1. if the terminal device sends data in some subframes in the listening window, which results in that the terminal does not listen to a Physical Sidelink Control Channel (PSCCH) in the subframes, resources on the subframes corresponding to the subframes in the resource selection window are excluded;
2. if the terminal device monitors the PSCCH in some subframes in the monitoring window, a Reference Signal Receiving Power (RSRP) of a Physical Sidelink Shared Channel (PSCCH) scheduled by the PSCCH is measured, if the RSRP of the PSCCH is higher than a RSRP threshold of a preset PSCCH, and if a reserved resource determined according to control information in the PSCCH conflicts with data to be sent by the terminal device, the reserved resource may be excluded from the set a, where the RSRP threshold may be selected according to priority information carried in the PSCCH and a priority of the data to be sent by the terminal device.
3. If the number of the remaining resources in the set a is less than 20% of the total number of the resources, the terminal device may raise the RSRP threshold by 3dB, and further repeat the foregoing step 1 and step 2 until the number of the remaining resources in the set a is greater than 20% of the total number of the resources.
4. The terminal equipment detects the Signal Strength Indication (S-RSSI) Received by the side line of the rest resources in the set A, and puts the 20 percent of resources with the lowest energy (relative to the number of the resources in the set A) into the set B according to the sequence of the energy;
5. the terminal equipment selects a resource from the set B with medium probability for data transmission.
In a New Radio (NR) -based Vehicle to other device (V2X) system (NR-V2X for short), multiple transmission modes can be supported: a unicast transmission mode, in which the receiving end terminal has only one terminal, and unicast transmission between UE1 and UE2 is shown in fig. 3 (a); in a multicast transmission mode, a receiving end terminal is all terminals in a communication group, or all terminals within a certain transmission distance, as shown in fig. 3 (b), UE1, UE2, UE3 and UE4 form a communication group, where UE1 transmits data, and then other terminal devices in the group are all receiving end terminals; in the broadcast transmission scheme, the receiving end may be any terminal, and as shown in fig. 3 (c), the UE1 is a transmitting end terminal, and other terminals around the UE may be receiving end terminals.
In the NR-V2X system, in order to improve transmission reliability, a side-line Feedback Channel is introduced, for example, for unicast transmission, a sending terminal sends side-line data (including PSCCH and PSCCH) to a receiving terminal, the receiving terminal may send Hybrid Automatic Repeat reQuest (HARQ) Feedback information to the sending terminal, and the sending terminal may determine whether retransmission is needed according to the Feedback information of the receiving terminal, where the HARQ Feedback information may be carried in the side-line Feedback Channel, for example, a Physical side-line Feedback Channel (PSFCH).
In order to reduce the overhead of the PSFCH, one slot is defined to include a PSFCH transmission resource in every N slots, for example, N-1, 2, 4, where N may be preconfigured or configured by a network device, and fig. 4 is a schematic diagram of N-4. The pschs transmitted in slots 2,3,4, and 5 have their corresponding feedback information transmitted in slot 7, so that slot {2,3,4, and 5} can be regarded as a slot set, and the pschs transmitted in the slot set have their corresponding PSFCHs transmitted in the same slot.
For unicast transmission and when the sidelink feedback is activated, if the UE1 sends the PSSCH to the UE2 at slot 2, the UE2 needs to send the sidelink feedback to the UE1 at slot 7, and similarly, if the UE2 sends the PSSCH to the UE1 at slot 3, the UE1 needs to send the sidelink feedback to the UE2 at implementation 7, but due to the half-duplex limitation, the terminal device can only send or receive data at the same time on the same carrier, so that transmission collision occurs between the UE1 and the UE2 at slot 7, and in this case, how to select resources for data transmission by the sender terminal is an urgent problem to solve.
It should be understood that the above-mentioned mode a and mode B are only exemplary to illustrate two transmission modes, and other transmission modes may be defined. For example, mode 1 and mode 2 are introduced in NR-V2X, where mode 1 indicates that sidelink transmission resources of the terminal device are allocated by the base station, and the manner in which the base station allocates the sidelink transmission resources using mode a and mode 1 may be different, for example, one of the manners may employ dynamic scheduling, the other manner may employ semi-static scheduling, or the manner employing semi-static plus dynamic scheduling, and mode 2 indicates that the sidelink transmission resources of the terminal device are selected by the terminal.
It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Fig. 5 is a schematic flow chart of a method 200 for wireless communication according to an embodiment of the present application. The method 200 may be performed by a terminal device in the communication system shown in fig. 1, and as shown in fig. 5, the method 200 may include at least part of the following:
s210, a first terminal receives first data sent by a second terminal on a first time unit;
s220, the first terminal determines to send feedback information of the first data to the second terminal device in a second time unit, where the first time unit is a time unit in a first time unit set, the first time unit set includes at least one time unit, and feedback information corresponding to data transmitted in the first time unit set is transmitted in the second time unit;
s230, the first terminal determines, according to the first time unit set, a candidate resource set for sending second data, where the second data is data to be sent by the first terminal.
In this embodiment of the application, feedback information of data transmitted in one or more time units may be transmitted in the same time unit, and then the one or more time units may form the first time unit set, and feedback information corresponding to data transmitted in a time unit in the first time unit set may be transmitted in a second time unit.
Specifically, the first terminal may receive first data sent by a second terminal in a first time unit of the first time unit set, and further may determine, according to the reception time of the first data, that feedback information of the first data is transmitted in the second time unit, if the first terminal has second data to be transmitted, in this case, the first terminal may determine, according to the first time unit set to which the first time unit belongs, a candidate resource set for transmitting the second data, and further may select a target transmission resource from the candidate resource set to transmit the second data.
As can be seen from the above description, the feedback information corresponding to the data transmitted in the time unit belonging to the same time unit set is transmitted in the same time unit, and due to the limitation of half duplex, i.e. the terminal device can only receive data or send data at the same time, in order to avoid that the feedback information of the first data and the feedback information of the second data are transmitted on the same time unit, that is, the first terminal needs to receive the feedback information of the second data and send the feedback information of the first data in the same time unit, the first terminal may determine a set of candidate resources to transmit the second data based on the first set of time units, for example, the first terminal may determine that the set of candidate resources does not include transmission resources in the first set of time units to avoid sending and receiving data on the same time unit.
It should be understood that, in this embodiment of the present application, the second data may be data sent to a third terminal, and optionally, the third terminal may be the second terminal, or may also be another terminal, which is not limited in this embodiment of the present application.
It should also be understood that the first data and the second data may be data transmitted by unicast or may also be data transmitted by multicast, which is not limited in this embodiment of the present application.
It should be noted that, in this embodiment of the present application, the time unit may be one or more time slots, or may also be one or more time domain symbols, for example, the first time unit may be a first time slot, and the first time unit set may include one or more time slots, in this case, the first time unit set may also be referred to as a first time slot set, and the time unit is taken as a time slot in the following description, but the embodiment of the present application is not limited thereto.
Optionally, in some embodiments of the present application, the 230 may include:
and the first terminal determines the candidate resource set according to the first time unit set and the data priority of the first data and the second data.
When the first terminal receives first data and second data to be sent exist, the first terminal can select resources according to data priorities of the first data and the second data, which is beneficial to ensuring timely and reliable transmission of data with high priorities.
As an embodiment, if the data priority of the first data is higher than the data priority of the second data, the first terminal may determine that the candidate resource set does not include transmission resources in a time unit of the first time unit set. Further, the first terminal sends the feedback information of the first data to the second terminal in a second time unit corresponding to a time unit in the first time unit set, and does not receive the feedback information of the second data in the second time unit.
As another embodiment, if the data priority of the first data is lower than the data priority of the second data, the first terminal may determine that the candidate resource set includes transmission resources in the at least one time unit in the first time unit set. Further, the first terminal determines a target transmission resource in the candidate resource set so that the second data can be transmitted on the target transmission resource. In this case, the first terminal may receive the feedback information of the second data sent by the receiving end of the second data in a second time unit corresponding to the time unit in the first time unit set, and may not send the feedback information of the first data in the second time unit.
As another embodiment, if the data priority of the first data is equal to the data priority of the second data, the first terminal may determine that the candidate resource set includes the transmission resource in the at least one time unit in the first time unit set, or may determine that the candidate resource set does not include the transmission resource in the time unit in the first time unit set, and refer to the description of the foregoing two embodiments for subsequent data transmission, which is not described herein again.
Taking the first time unit set shown in fig. 4 as an example, the first time unit set includes slot 2, slot 3, slot 4 and slot 5, the data transmitted in slot 2, slot 3, slot 4 and slot 5, such as psch, and the corresponding feedback information, such as PSFCH, is transmitted in slot 7.
If the first terminal receives the psch (i.e., the first data) transmitted by the second terminal in slot 2, and the priority level corresponding to the psch is 3, the first terminal needs to transmit the sidelink feedback information to the second terminal in slot 7. If the first terminal determines that new data (i.e., second data) arrives at time slot 4, resource selection is required, and the determined resource selection window is from time slot 5 to time slot 25.
Case 1: the first data has a higher priority than the second data.
For example, the priority level corresponding to the second data is 5, that is, the priority level of the second data is lower than the priority level of the first data (where, the smaller the value of the priority level is, the higher the corresponding priority level is), if the first terminal selects the transmission resource in the time slot 5 in the resource selection window to transmit the second data, in a case that the sidestream feedback is activated, the first terminal needs to receive the sidestream feedback information for the second data, which is transmitted by the receiving terminal of the second data in the time slot 7, and on the other hand, the first terminal needs to transmit the sidestream feedback information for the first data to the second terminal in the time slot 7.
In this case, since the priority of the first data is higher than that of the second data, and since the half-duplex limit, the first terminal may choose to send the sidestream feedback information of the first data to the second terminal in time slot 7, abandon the receipt of the sidestream feedback information of the second data in time slot 7, this results in an inefficient transmission of the second data transmitted by the first terminal in time slot 5, causing a waste of resources, and possibly interfering with the data transmission of other terminals, and, therefore, in the embodiment of the present application, in the case where the priority of the second data to be transmitted is lower than the priority of the first data received, the first terminal may exclude all transmission resources on slots located in the same set of slots as the slot for the first data, i.e. the first terminal may exclude transmission resources on slot 5.
Case 2: the priority of the first data is lower than the priority of the second data.
For example, if the priority level corresponding to the second data is 2, that is, the priority level of the second data is higher than the priority level of the first data, the candidate resource set may include the time slot 5, that is, the first terminal may select the transmission resource in the time slot 5. If the first terminal selects the transmission resource in the time slot 5 to transmit the second data, the first terminal needs to receive the sidestream feedback information of the second data, which is sent by a receiving terminal of the second data in the time slot 7, and although the first terminal needs to send the sidestream feedback information of the first data to the second terminal in the time slot 7, the first terminal selects the sidestream feedback information of the second data, which is sent by the receiving terminal of the second data in the time slot 7, and abandons sending the sidestream feedback information of the first data to the second terminal in the time slot 7 because the priority of the second data is higher than the priority of the first data.
In other embodiments of the present application, if a first terminal receives first data sent by a second terminal over a first time unit, and the first data indicates that a transmission resource over a third time unit is reserved, where the third time unit is a time unit in a second time unit set, the second time unit set includes at least one time unit, feedback information corresponding to the data transmitted in the second time unit set is transmitted in a fourth time unit, and the first terminal has second data to send, in this case, the first terminal may further determine a candidate resource set for sending the second data according to the second time unit set.
In some embodiments, the first terminal determines the set of candidate resources based on the second set of time units and a data priority of the first data and the second data.
As an embodiment, if the data priority of the first data is higher than the data priority of the second data, the first terminal may determine that the candidate resource set does not include transmission resources in time units of the second time unit set.
As another embodiment, if the data priority of the first data is lower than the data priority of the second data, the first terminal may determine that the candidate resource set includes transmission resources in the at least one time unit in the second time unit set.
With continued reference to the example shown in fig. 4, the first set of time units includes slot 2, slot 3, slot 4, and slot 5, the data transmitted in slot 2, slot 3, slot 4, and slot 5, e.g., pschs, and the corresponding feedback information, e.g., PSFCH, is transmitted in slot 7, the second set of time units includes slot 6, slot 7, slot 8, and slot 9, the data transmitted in slot 6, slot 7, slot 8, and slot 9, e.g., pschs, and the corresponding feedback information, e.g., PSFCH, is transmitted in slot 11.
If the first terminal receives first data sent by a second terminal in slot 2, where the first data includes a PSCCH and a PSCCH, and the priority level corresponding to the PSCCH is 3, if the PSCCH indicates that transmission resources in slot 6 are reserved, that is, the second terminal may possibly send side data (denoted as third data) in slot 6, where the third data may be, for example, retransmission data of data carried in the PSCCH, and the priority level corresponding to the retransmission data is the same as the priority level of the initially transmitted data. If the second terminal sends the third data in time slot 6, the first terminal needs to send the sideline feedback information of the third data to the second terminal in time slot 11. If the first terminal determines that new data (i.e., the second data) arrives at time slot 5, resource selection is required, and the determined resource selection window is from time slot 8 to time slot 28.
Taking the third data as the retransmission data of the first data (referred to as psch in the first data here) as an example, the priority of the third data is the same as the priority of the first data.
Case 1: the first data has a higher priority than the second data, i.e. the third data has a higher priority than the second data.
For example, the priority level corresponding to the second data is 5, that is, the priority level of the second data is lower than the priority level of the first data (where, the smaller the value of the priority level is, the higher the corresponding priority level is), if the first terminal selects the transmission resource in the time slot 8 or the time slot 9 in the resource selection window to transmit the second data, in the case that the sidestream feedback is activated, the first terminal needs to receive, at the time slot 11, the sidestream feedback information for the second data, which is transmitted by the receiving terminal of the second data, and on the other hand, the first terminal needs to transmit, at the time slot 11, the sidestream feedback information for the third data to the second terminal.
In this case, since the priority of the first data is higher than that of the second data, and due to the limitation of half duplex, the first terminal may choose to transmit the sideline feedback information of the third data to the second terminal in the time slot 11, and abandon the sideline feedback information of the second data received in the time slot 11, which may result in the invalid transmission of the second data transmitted by the first terminal in the time slot 8 or the time slot 9, causing resource waste, and possibly interfering with the data transmission of other terminals, in this embodiment of the present application, in case that the priority of the second data to be transmitted is lower than that of the third data received, the first terminal may exclude all transmission resources on the time slots belonging to the same time slot set as the time slot of the third data, that is, the first terminal may exclude the transmission resources on the time slot 8 and/or the time slot 9, i.e. not using said time slot 8 and/or time slot 9 for transmitting said first data.
Case 2: the priority of the first data is lower than the priority of the second data, i.e. the priority of the third data is lower than the priority of the second data.
For example, the priority level corresponding to the second data is 2, that is, the priority level of the second data is higher than the priority level of the third data, the candidate resource set may include all transmission resources on a timeslot located in the same timeslot set as the timeslot of the third data, for example, include the timeslot 8 and/or timeslot 9, that is, the first terminal may select a transmission resource in timeslot 8 or timeslot 9. If the first terminal selects the transmission resource in the time slot 8 to transmit the second data, the first terminal needs to receive the sidestream feedback information of the second data, which is sent by a receiving terminal of the second data in the time slot 11, although the first terminal needs to send the sidestream feedback information of the third data to the second terminal in the time slot 11, because the priority of the second data is higher than the priority of the third data, the first terminal selects the sidestream feedback information of the second data, which is sent by the receiving terminal of the second data in the time slot 11, and abandons sending the sidestream feedback information of the third data to the second terminal in the time slot 11.
In this embodiment of the present application, the feedback of the side rows may be activated or deactivated, and specifically, the feedback of the side rows may be activated or deactivated according to preconfigured information or network configuration information, for example, if the feedback of the side rows is activated, after the receiving end terminal receives the side row data sent by the sending end terminal, an HARQ Acknowledgement (ACK) or a Negative Acknowledgement (NACK) may be fed back to the sending end terminal according to a detection result, and the sending end terminal may determine whether to retransmit data or transmit new data according to the feedback information of the receiving end. If the side-line feedback is deactivated, the receiving terminal does not need to send feedback information, and in this case, the sending terminal may send data by using a blind retransmission method, for example, the sending terminal may repeat transmission of each side-line data for K times, where K is greater than or equal to 1.
That is to say, only when the sidelink feedback is activated, the receiving end terminal needs to send the sidelink feedback information to the sending end terminal, and therefore, in this embodiment of the application, when the sidelink feedback is activated, the first terminal may determine the candidate resource set according to the manner described in the foregoing embodiment.
Optionally, in this embodiment of the present application, the candidate resource set may be obtained by selecting resources from a first resource set, where the first resource set may be a resource set B obtained based on an exclusion operation in the embodiment shown in fig. 2, or a resource set a, that is, a determination manner of the candidate resource set according to the embodiment of the present application may be used as one step in the exclusion operation in the embodiment shown in fig. 2.
Therefore, in this embodiment of the application, when there is data to be sent, the first terminal may determine the candidate resource set of the data to be sent according to the time unit set to which the time unit of the received data that has not been fed back belongs, which is beneficial to avoiding a resource conflict problem between the feedback information of the data to be sent and the feedback information of the received data. Fig. 6 is a schematic flow chart of a method 300 of wireless communication according to another embodiment of the present application, the method 300 being executable by a terminal device in the communication system shown in fig. 1, as shown in fig. 6, the method 300 comprising the following:
s310, a first terminal determines to send second data in a third time unit, wherein the second data is data to be sent by the first terminal;
s320, the first terminal receives the first data sent by the second terminal in the first time unit before the third time unit;
s330, the first terminal determines to send feedback information of the first data to the second terminal device in a second time unit, where the first time unit is a time unit in a first time unit set, the first time unit set includes at least one time unit, and feedback information corresponding to data transmitted in the first time unit set is transmitted in the second time unit;
s340, the first terminal determines whether to transmit the second data in the third time unit according to whether the first time unit and the third time unit belong to the same time unit set.
In this embodiment of the application, feedback information of data transmitted in one or more time units may be transmitted in the same time unit, and then the one or more time units may form the first time unit set, and feedback information corresponding to data transmitted in a time unit in the first time unit set may be transmitted in a second time unit.
It should also be understood that the first data and the second data may be data transmitted by unicast or may also be data transmitted by multicast, which is not limited in this embodiment of the present application.
It should be noted that, in the embodiment of the present application, the time unit may be one or more time slots, or may also be one or more time domain symbols, for example, the first time unit may be a first time slot, and the first time unit set may include one or more time slots, and hereinafter, the time unit is taken as a time slot for example, but the embodiment of the present application is not limited thereto.
Specifically, if new data arrives at a fourth time unit, the first terminal may perform resource selection to determine to send second data at a third time unit, further, before the third time unit, the first terminal may continue listening, and if the first terminal receives first data sent by the second terminal at a first time unit before the third time unit, the first terminal may determine, according to the reception time of the first data, whether to transmit the second data at the third time unit, in this case, the first terminal may determine, according to a set of first time units to which the first time unit belongs, whether to transmit the second data at the third time unit, and in a case that it is determined that the second data is not to be transmitted at the third time unit, the first terminal may further perform resource reselection, determine a candidate resource set for transmitting the second data in a resource reselection process, and further select a target transmission resource from the candidate resource set to transmit the second data.
As an embodiment, if the first time unit and the third time unit do not belong to the first time unit set, the first terminal determines to transmit the second data, and further transmits the second data in the third time unit.
As another embodiment, if the first time unit and the third time unit both belong to the first time unit set, the first terminal determines whether to transmit the second data on the third time unit according to the data priority of the first data and the second data.
For example, if the data priority of the second data is higher than the data priority of the first data, determining to transmit the second data on the third time unit; or
And if the data priority of the second data is lower than that of the first data, determining not to transmit the second data in the third time unit.
As a further embodiment, if the first data indicates that transmission resources are reserved in a third time unit, that is, if the second terminal may transmit sidestream data in the third time unit, the sidestream data may be retransmission data of the first data, in this case, the first terminal may determine not to transmit the second data in the third time unit, or may also determine whether to transmit the second data in the third time unit by combining data priorities of the first data and the second data. For example, if the data priority of the second data is higher than the data priority of the first data, it is determined that the second data is transmitted in the third time unit, otherwise, the second data is not transmitted in the second time unit.
Further, if the first terminal determines not to transmit the second data in the third time unit, the first terminal may discard the second data, that is, not to transmit the second data in any time unit, or the first terminal may perform resource reselection to re-determine the candidate resource set for transmitting the second data.
As an embodiment, the first terminal may determine the candidate resource set according to the first time unit set, and the priority of the first data and the priority of the second data.
For example, if the data priority of the first data is higher than the data priority of the second data, determining that the candidate set of resources does not include transmission resources for a time unit in the first set of time units;
for another example, if the data priority of the first data is lower than the data priority of the second data, it is determined that the candidate resource set includes transmission resources in the at least one time unit of the first time unit set.
In some embodiments, the first terminal may determine whether to perform resource reselection according to whether the third time unit and the first time unit belong to the same time unit set, for example, if both the third time unit and the first time unit belong to the first time unit set, it may determine that resource reselection is required, that is, a candidate resource set for transmitting the second data is re-determined, where the specific determination manner may refer to the related description of the foregoing embodiments, or if the third time unit and the first time unit do not belong to the same time unit set, it may determine that resource reselection is not required, that is, the first terminal may transmit the second data on the third time unit.
In other embodiments of the present application, if a first terminal receives first data sent by a second terminal over a first time unit, and the first data indicates that a transmission resource over a fifth time unit is reserved, where the fifth time unit is a time unit in a second time unit set, the second time unit set includes at least one time unit, and feedback information corresponding to data transmitted in the second time unit set is transmitted in a sixth time unit, in this case, the first terminal may further determine a candidate resource set for transmitting the second data according to the second time unit set.
Optionally, in some embodiments, the first data may include a PSCCH and a PSCCH, the PSCCH may be used to indicate a transmission resource in a fifth time unit, and the fifth time unit may be used for the second terminal to transmit third data, where the third data may be, for example, retransmission data of data carried in the PSCCH, and a priority corresponding to the retransmission data is the same as a priority of the initially transmitted data. In some embodiments, the first terminal determines the set of candidate resources based on the second set of time units and a data priority of the first data and the second data.
As an embodiment, if the data priority of the first data is higher than the data priority of the second data, the first terminal may determine that the candidate resource set does not include transmission resources in time units of the second time unit set.
As another embodiment, if the data priority of the first data is lower than the data priority of the second data, the first terminal may determine that the candidate resource set includes transmission resources in the at least one time unit in the second time unit set.
In this embodiment of the present application, the feedback of the side rows may be activated or deactivated, and specifically, the feedback of the side rows may be activated or deactivated according to preconfigured information or network configuration information, for example, if the feedback of the side rows is activated, after the receiving end terminal receives the side row data sent by the sending end terminal, an HARQ Acknowledgement (ACK) or a Negative Acknowledgement (NACK) may be fed back to the sending end terminal according to a detection result, and the sending end terminal may determine whether to retransmit data or transmit new data according to the feedback information of the receiving end. If the side-line feedback is deactivated, the receiving terminal does not need to send feedback information, and the sending terminal sends data by adopting a blind retransmission mode, for example, the sending terminal can repeatedly transmit each side-line data for K times.
That is to say, in the case that the sidelink feedback is activated, the receiving end terminal needs to send the sidelink feedback information to the sending end terminal, and therefore, in this embodiment, in the case that the sidelink feedback is activated, the first terminal may determine whether to transmit the second data and determine the candidate resource set according to the manner described in the foregoing embodiment.
Optionally, in this embodiment of the present application, the candidate resource set may be obtained by selecting resources from a first resource set, where the first resource set may be a resource set B obtained based on an exclusion operation in the embodiment shown in fig. 2, or a resource set a, that is, a determination manner of the candidate resource set according to the embodiment of the present application may be used as one step in the exclusion operation in the embodiment shown in fig. 2.
Therefore, in the embodiment of the present application, when the terminal device has data to send, the candidate resource set of the data to be sent may be determined according to the time unit set to which the time unit of the received data that has not been fed back belongs, which is beneficial to avoiding the resource conflict problem between the feedback information of the data to be sent and the feedback information of the received data.
While method embodiments of the present application are described in detail above with reference to fig. 2-6, apparatus embodiments of the present application are described in detail below with reference to fig. 7-10, it being understood that apparatus embodiments correspond to method embodiments and that similar descriptions may be had with reference to method embodiments.
Fig. 7 shows a schematic block diagram of a terminal device 400 according to an embodiment of the application. As shown in fig. 7, the terminal apparatus 400 includes:
a communication module 410, configured to receive first data sent by a second terminal over a first time unit;
a determining module 420, configured to determine feedback information of the first data sent to the second terminal device over a second time unit, where the first time unit is a time unit in a first time unit set, the first time unit set includes at least one time unit, and the feedback information corresponding to data transmitted in the first time unit set is transmitted in the second time unit; and
and determining a candidate resource set for sending second data according to the first time unit set, wherein the second data is data to be sent by the first terminal.
Optionally, in some embodiments, the determining module 420 is specifically configured to:
determining that the set of candidate resources does not include transmission resources on time units in the first set of time units.
Optionally, in some embodiments, the determining module 420 is further configured to:
and determining the candidate resource set according to the first time unit set and the data priority of the first data and the second data.
Optionally, in some embodiments, the determining module 420 is specifically configured to:
determining that the candidate set of resources does not include transmission resources on a time unit in the first set of time units if the data priority of the first data is higher than the data priority of the second data; or
Determining that the candidate resource set includes transmission resources in the at least one time unit of the first time unit set if the data priority of the first data is lower than the data priority of the second data.
Optionally, in some embodiments, the determining module 420 is further configured to:
determining the set of candidate resources from the first set of time units if side row feedback is activated.
Optionally, in some embodiments, the time unit is a time slot or a time domain symbol.
Optionally, in some embodiments, the communication module may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system on a chip. The determining means may be one or more processors.
It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the terminal device 400 are respectively for implementing the corresponding processes of the first terminal in the foregoing embodiments, and are not described herein again for brevity.
Fig. 8 shows a schematic block diagram of a terminal device 500 according to another embodiment of the present application. As shown in fig. 8, the terminal device 500 includes:
a determining module 510, configured to determine to send second data in a third time unit, where the second data is data to be sent by the first terminal;
a communication module 520, configured to receive first data sent by the second terminal in a first time unit before the third time unit;
the determining module 510 is further configured to determine feedback information of the first data sent to the second terminal device in a second time unit, where the first time unit is a time unit in a first time unit set, the first time unit set includes at least one time unit, and the feedback information corresponding to the data transmitted in the first time unit set is transmitted in the second time unit; and
determining whether to transmit the second data on the third time unit according to whether the first time unit and the third time unit belong to the same time unit set.
Optionally, in some embodiments, the determining module 510 is specifically configured to:
if the first time unit and the third time unit both belong to the first time unit set, determining whether to transmit the second data on the third time unit according to the data priority of the first data and the second data; or
Determining to transmit the second data in the third time unit if the third time unit does not belong to the first time unit set.
Optionally, in some embodiments, the determining module is specifically configured to:
determining not to transmit the second data in the third time unit if the data priority of the second data is lower than the data priority of the first data; or
And if the data priority of the second data is higher than that of the first data, determining to transmit the second data in the third time unit.
Optionally, in some embodiments, the determining module 510 is further configured to:
and if the second data is determined not to be transmitted in the third time unit, determining a candidate resource set for transmitting the second data.
Optionally, in some embodiments, the determining module 510 is further configured to:
determining a candidate resource set according to the first time unit set, and the priority of the first data and the priority of the second data.
Optionally, in some embodiments, the determining module 510 is specifically configured to:
determining that the candidate resource set does not include transmission resources on time units in the first time unit set if the data priority of the second data is lower than the data priority of the first data.
Optionally, in some embodiments, the determining module 510 is further configured to:
determining whether to transmit the second data on the third time unit according to whether the first time unit and the third time unit belong to the same time unit set under the condition that side row feedback is activated.
Optionally, in some embodiments, the time unit is a time slot or a time domain symbol.
Optionally, in some embodiments, the communication module may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system on a chip. The determining means may be one or more processors.
It should be understood that the terminal device 500 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the terminal device 500 are respectively for implementing the corresponding processes of the second terminal in the foregoing embodiments, and are not described herein again for brevity.
Fig. 9 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application. The communication device 600 shown in fig. 9 includes a processor 610, and the processor 610 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
Optionally, as shown in fig. 9, the communication device 600 may further include a memory 620. From the memory 620, the processor 610 may call and run a computer program to implement the method in the embodiment of the present application.
The memory 620 may be a separate device from the processor 610, or may be integrated into the processor 610.
Optionally, as shown in fig. 9, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.
The transceiver 630 may include a transmitter and a receiver, among others. The transceiver 630 may further include one or more antennas.
Optionally, the communication device 600 may specifically be a network device in the embodiment of the present application, and the communication device 600 may implement a corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.
Optionally, the communication device 600 may specifically be a mobile terminal/terminal device in this embodiment, and the communication device 600 may implement a corresponding process implemented by the mobile terminal/terminal device in each method in this embodiment, which is not described herein again for brevity.
Fig. 10 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 700 shown in fig. 10 includes a processor 710, and the processor 710 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
Optionally, as shown in fig. 10, the chip 700 may further include a memory 720. From the memory 720, the processor 710 can call and run a computer program to implement the method in the embodiment of the present application.
The memory 720 may be a separate device from the processor 710, or may be integrated into the processor 710.
Optionally, the chip 700 may further include an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips, and in particular, may obtain information or data transmitted by other devices or chips.
Optionally, the chip 700 may further include an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips, and in particular, may output information or data to the other devices or chips.
Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.
Optionally, the chip may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, and for brevity, no further description is given here.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.
It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.
It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), Synchronous Link DRAM (SLDRAM), Direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.
The embodiment of the application also provides a computer readable storage medium for storing the computer program.
Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.
Optionally, the computer-readable storage medium may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.
Embodiments of the present application also provide a computer program product comprising computer program instructions.
Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions enable the computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.
Optionally, the computer program product may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiment of the present application, which are not described herein again for brevity.
The embodiment of the application also provides a computer program.
Optionally, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.
Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (33)

  1. A method of wireless communication, comprising:
    the method comprises the steps that a first terminal receives first data sent by a second terminal on a first time unit;
    the first terminal determines to send feedback information of the first data to the second terminal device in a second time unit, where the first time unit is a time unit in a first time unit set, the first time unit set includes at least one time unit, and the feedback information corresponding to data transmitted in the first time unit set is transmitted in the second time unit;
    and the first terminal determines a candidate resource set for transmitting second data according to the first time unit set, wherein the second data is data to be transmitted by the first terminal.
  2. The method of claim 1, wherein the determining, by the first terminal, a set of candidate resources for transmitting second data according to the first set of time units comprises:
    the first terminal determines that the set of candidate resources does not include transmission resources on time units in the first set of time units.
  3. The method of claim 1, wherein the determining, by the first terminal, a set of candidate resources for transmitting second data according to the first set of time units comprises:
    and the first terminal determines the candidate resource set according to the first time unit set and the data priority of the first data and the second data.
  4. The method of claim 3, wherein the determining, by the first terminal, the candidate resource set according to the first time unit set and the data priority of the first data and the second data comprises:
    determining that the candidate set of resources does not include transmission resources on a time unit in the first set of time units if the data priority of the first data is higher than the data priority of the second data; or
    Determining that the candidate resource set includes transmission resources in the at least one time unit of the first time unit set if the data priority of the first data is lower than the data priority of the second data.
  5. The method according to any of claims 1 to 4, wherein the determining, by the first terminal, the set of candidate resources for transmitting the second data according to the first set of time units comprises:
    and the first terminal determines the candidate resource set according to the first time unit set under the condition that the side row feedback is activated.
  6. The method according to any of claims 1 to 5, wherein the time unit is a time slot or a time domain symbol.
  7. A method of wireless communication, comprising:
    the first terminal determines to send second data in a third time unit, wherein the second data is data to be sent by the first terminal;
    the first terminal receives first data sent by a second terminal on a first time unit before the third time unit;
    the first terminal determines to send feedback information of the first data to the second terminal device in a second time unit, where the first time unit is a time unit in a first time unit set, the first time unit set includes at least one time unit, and the feedback information corresponding to data transmitted in the first time unit set is transmitted in the second time unit;
    the first terminal determines whether to transmit the second data on the third time unit according to whether the first time unit and the third time unit belong to the same time unit set.
  8. The method of claim 7, wherein the determining, by the first terminal, whether to transmit the second data on the third time unit according to whether the first time unit and the third time unit belong to the same time unit set comprises:
    if the first time unit and the third time unit both belong to the first time unit set, the first terminal determines whether to transmit the second data on the third time unit according to the data priority of the first data and the second data; or
    If the third time unit does not belong to the first time unit set, the first terminal determines to transmit the second data in the third time unit.
  9. The method of claim 8, wherein the first terminal determines whether to transmit the second data over the third time unit according to the data priority of the first data and the second data, comprising:
    determining not to transmit the second data in the third time unit if the data priority of the second data is lower than the data priority of the first data; or
    And if the data priority of the second data is higher than that of the first data, determining to transmit the second data in the third time unit.
  10. The method according to any one of claims 7 to 9, further comprising:
    if the first terminal determines not to transmit the second data in the third time unit, the first terminal determines a candidate resource set for transmitting the second data.
  11. The method of claim 10, wherein the determining, by the first terminal, a set of candidate resources for transmitting the second data comprises:
    and the first terminal determines a candidate resource set according to the first time unit set, the priority of the first data and the priority of the second data.
  12. The method of claim 11, wherein the first terminal determines the candidate resource set according to the first time unit set, and the priority of the first data and the priority of the second data, comprising:
    determining that the candidate resource set does not include transmission resources on time units in the first time unit set if the data priority of the second data is lower than the data priority of the first data.
  13. The method according to any of claims 7 to 12, wherein the determining, by the first terminal, whether to transmit the second data according to whether the second time unit belongs to the first time unit set comprises:
    and the first terminal determines whether to transmit the second data on the third time unit according to whether the first time unit and the third time unit belong to the same time unit set or not under the condition that the side row feedback is activated.
  14. The method according to any of claims 7 to 13, wherein the time unit is a time slot or a time domain symbol.
  15. A terminal device, comprising:
    the communication module is used for receiving first data sent by a second terminal on a first time unit;
    a determining module, configured to determine feedback information of the first data sent to the second terminal device in a second time unit, where the first time unit is a time unit in a first time unit set, the first time unit set includes at least one time unit, and the feedback information corresponding to data transmitted in the first time unit set is transmitted in the second time unit; and
    and determining a candidate resource set for sending second data according to the first time unit set, wherein the second data is data to be sent by the first terminal.
  16. The terminal device of claim 15, wherein the determining module is specifically configured to:
    determining that the set of candidate resources does not include transmission resources on time units in the first set of time units.
  17. The terminal device of claim 15, wherein the determining module is further configured to:
    and determining the candidate resource set according to the first time unit set and the data priority of the first data and the second data.
  18. The terminal device of claim 17, wherein the determining module is specifically configured to:
    determining that the candidate set of resources does not include transmission resources on a time unit in the first set of time units if the data priority of the first data is higher than the data priority of the second data; or
    Determining that the candidate resource set includes transmission resources in the at least one time unit of the first time unit set if the data priority of the first data is lower than the data priority of the second data.
  19. The terminal device according to any of claims 15 to 18, wherein the determining module is further configured to:
    determining the set of candidate resources from the first set of time units if side row feedback is activated.
  20. A terminal device according to any of claims 15 to 19, wherein the time unit is a time slot or a time domain symbol.
  21. A terminal device, comprising:
    a determining module, configured to determine to send second data in a third time unit, where the second data is data to be sent by the first terminal;
    the communication module is used for receiving first data sent by the second terminal on a first time unit before the third time unit;
    the determining module is further configured to determine feedback information of the first data sent to the second terminal device in a second time unit, where the first time unit is a time unit in a first time unit set, the first time unit set includes at least one time unit, and the feedback information corresponding to data transmitted in the first time unit set is transmitted in the second time unit; and
    determining whether to transmit the second data on the third time unit according to whether the first time unit and the third time unit belong to the same time unit set.
  22. The terminal device of claim 21, wherein the determining module is specifically configured to:
    if the first time unit and the third time unit both belong to the first time unit set, determining whether to transmit the second data on the third time unit according to the data priority of the first data and the second data; or
    Determining to transmit the second data in the third time unit if the third time unit does not belong to the first time unit set.
  23. The terminal device of claim 22, wherein the determining module is specifically configured to:
    determining not to transmit the second data in the third time unit if the data priority of the second data is lower than the data priority of the first data; or
    And if the data priority of the second data is higher than that of the first data, determining to transmit the second data in the third time unit.
  24. The terminal device of any of claims 21-23, wherein the determining module is further configured to: and if the second data is determined not to be transmitted in the third time unit, determining a candidate resource set for transmitting the second data.
  25. The terminal device of claim 24, wherein the determining module is further configured to:
    determining a candidate resource set according to the first time unit set, and the priority of the first data and the priority of the second data.
  26. The terminal device of claim 25, wherein the determining module is specifically configured to:
    determining that the candidate resource set does not include transmission resources on time units in the first time unit set if the data priority of the second data is lower than the data priority of the first data.
  27. The terminal device of any one of claims 21-26, wherein the determining module is further configured to: determining whether to transmit the second data on the third time unit according to whether the first time unit and the third time unit belong to the same time unit set under the condition that side row feedback is activated.
  28. A terminal device according to any of claims 21 to 27, wherein the time unit is a time slot or a time domain symbol.
  29. A terminal device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory, to perform the method of any of claims 1 to 6, or to perform the method of any of claims 7 to 14.
  30. A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any of claims 1 to 6, or the method of any of claims 7 to 14.
  31. A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 1 to 6, or the method of any one of claims 7 to 14.
  32. A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 6 or the method of any one of claims 7 to 14.
  33. A computer program, characterized in that the computer program causes a computer to perform the method of any of claims 1 to 6, or the method of any of claims 7 to 14.
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