CN116158178A

CN116158178A - Data transmission method and device

Info

Publication number: CN116158178A
Application number: CN202280006148.9A
Authority: CN
Inventors: 赵文素
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-23

Abstract

The embodiment of the disclosure discloses a data transmission method and device, which can be applied to the technical field of communication, wherein the method executed by first terminal equipment comprises the following steps: and when the specific condition is met, determining to use the target symbol in the continuous multiple time slots for the data transmission of the sidelink, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the continuous multiple time slots. Therefore, the first terminal equipment can be ensured to use the last symbol of other time slots except the last time slot to transmit data in the continuous transmission of a plurality of time slots, so that the resource waste can be avoided, and the resource utilization rate can be improved.

Description

Data transmission method and device

Technical Field

The disclosure relates to the field of communication technologies, and in particular, to a data transmission method and device.

Background

In unlicensed bands, a terminal device may transmit data over a continuous number of time slots after interception (listen before talk, LBT) before a session is successful, operating in a sidelink (sidelink) in the shared spectrum.

However, in the related art sidelink slot structure, the last symbol of each slot is used as a guard symbol, and no data transmission is performed.

Disclosure of Invention

The embodiment of the disclosure provides a data transmission method and device, which can ensure that a first terminal device uses the last symbol of other time slots except the last time slot to transmit data in continuous multi-time slot transmission, so that the resource waste can be avoided, and the resource utilization rate can be improved.

In a first aspect, an embodiment of the present disclosure provides a data transmission method, which is performed by a first terminal device, the method including: and when the first terminal equipment meets a specific condition, determining to use a target symbol in a plurality of continuous time slots for performing the data transmission of the sidelink, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the plurality of continuous time slots.

In the technical scheme, when a specific condition is met, the first terminal equipment determines to use a target symbol in a plurality of continuous time slots to perform data transmission of a sidelink, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the plurality of continuous time slots. Therefore, the first terminal equipment can be ensured to use the last symbol of other time slots except the last time slot to transmit data in the continuous transmission of a plurality of time slots, so that the resource waste can be avoided, and the resource utilization rate can be improved.

In a second aspect, embodiments of the present disclosure provide another data transmission method, the method performed by a network device, the method comprising: and sending configuration information to the first terminal equipment, wherein the configuration information is used for indicating a first threshold value or a second threshold value, the first threshold value is used for the first terminal equipment to perform data transmission of the sidelink by using a target symbol in a plurality of continuous time slots under the condition that the value meeting the layer 1 priority of data to be sent is smaller than or equal to the first threshold value, or the second threshold value is used for the first terminal equipment to perform data transmission of the sidelink by using the target symbol in the plurality of continuous time slots under the condition that the value meeting the CAPC of the data to be sent is smaller than or equal to the second threshold value, and the target symbol comprises the last symbol in other time slots except the last time slot in the plurality of continuous time slots.

In a third aspect, an embodiment of the present disclosure provides a communication apparatus, where the communication apparatus has a function of implementing part or all of the first terminal device in the method described in the first aspect, for example, a function of the communication apparatus may be provided with a function in part or all of the embodiments of the present disclosure, or may be provided with a function of implementing any one of the embodiments of the present disclosure separately. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the functions described above.

In one implementation, the communication device may include a transceiver module and a processing module in a structure configured to support the communication device to perform the corresponding functions in the method. The transceiver module is used for supporting communication between the communication device and other equipment. The communication device may further comprise a memory module for coupling with the transceiver module and the processing module, which holds the necessary computer programs and data of the communication device.

In one implementation, the communication device includes: and the receiving and transmitting module is configured to determine to use a target symbol in the continuous multiple time slots for transmitting the data of the sidelink when a specific condition is met, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the continuous multiple time slots.

In a fourth aspect, an embodiment of the present disclosure provides another communications apparatus having a function of implementing part or all of the network device in the method example described in the second aspect, for example, a function of the communications apparatus may be provided with a function in part or all of the embodiments of the present disclosure, or may be provided with a function of implementing any one of the embodiments of the present disclosure separately. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the functions described above.

In one implementation, the communication device may include a transceiver module and a processing module in a structure configured to support the communication device to perform the corresponding functions of the method. The transceiver module is used for supporting communication between the communication device and other equipment. The communication device may further comprise a memory module for coupling with the transceiver module and the processing module, which holds the necessary computer programs and data of the communication device.

In one implementation, the communication device includes: and a transceiver module configured to send configuration information to the first terminal device, where the configuration information is used to indicate a first threshold or a second threshold, where the first threshold is used for the first terminal device to perform data transmission of the sidelink by using a target symbol in a continuous plurality of time slots if the value meeting the layer 1 priority of the data to be sent is determined to be less than or equal to the first threshold, or the second threshold is used for the first terminal device to perform data transmission of the sidelink by using the target symbol in the continuous plurality of time slots if the value meeting the CAPC of the data to be sent is determined to be less than or equal to the second threshold, where the target symbol includes a last symbol in other time slots except the last time slot in the continuous plurality of time slots.

In a fifth aspect, embodiments of the present disclosure provide a communication device comprising a processor, which when invoking a computer program in memory, performs the method of the first aspect described above.

In a sixth aspect, embodiments of the present disclosure provide a communication device comprising a processor that, when invoking a computer program in memory, performs the method of the second aspect described above.

In a seventh aspect, embodiments of the present disclosure provide a communication apparatus comprising a processor and a memory, the memory having a computer program stored therein; the processor executes the computer program stored in the memory to cause the communication device to perform the method of the first aspect described above.

In an eighth aspect, embodiments of the present disclosure provide a communication apparatus comprising a processor and a memory, the memory having a computer program stored therein; the processor executes the computer program stored in the memory to cause the communication device to perform the method of the second aspect described above.

In a ninth aspect, embodiments of the present disclosure provide a communications apparatus comprising a processor and interface circuitry for receiving code instructions and transmitting to the processor, the processor being configured to execute the code instructions to cause the apparatus to perform the method of the first aspect described above.

In a tenth aspect, embodiments of the present disclosure provide a communications device comprising a processor and interface circuitry for receiving code instructions and transmitting to the processor, the processor being configured to execute the code instructions to cause the device to perform the method of the second aspect described above.

In an eleventh aspect, an embodiment of the disclosure provides a data transmission system, where the system includes a communication device according to the third aspect and a communication device according to the fourth aspect, or where the system includes a communication device according to the fifth aspect and a communication device according to the sixth aspect, or where the system includes a communication device according to the seventh aspect and a communication device according to the eighth aspect, or where the system includes a communication device according to the ninth aspect and a communication device according to the tenth aspect.

In a twelfth aspect, an embodiment of the present invention provides a computer readable storage medium, configured to store instructions for use by the first terminal device, where the instructions, when executed, cause the first terminal device to perform the method according to the first aspect.

In a thirteenth aspect, an embodiment of the present invention provides a readable storage medium, configured to store instructions for use by the network-side device, where the instructions, when executed, cause the network-side device to perform the method described in the second aspect.

In a fourteenth aspect, the present disclosure also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.

In a fifteenth aspect, the present disclosure also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of the second aspect described above.

In a sixteenth aspect, the present disclosure provides a chip system comprising at least one processor and an interface for supporting a first terminal device to implement the functionality referred to in the first aspect, e.g. to determine or process at least one of data and information referred to in the above-mentioned method. In one possible design, the chip system further comprises a memory for holding the computer programs and data necessary for the first terminal device. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

In a seventeenth aspect, the present disclosure provides a chip system comprising at least one processor and an interface for supporting a network-side device to implement the functionality involved in the second aspect, e.g. to determine or process at least one of data and information involved in the above-described method. In one possible design, the chip system further includes a memory for storing computer programs and data necessary for the network-side device. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

In an eighteenth aspect, the present disclosure provides a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.

In a nineteenth aspect, the present disclosure provides a computer program which, when run on a computer, causes the computer to perform the method of the second aspect described above.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the background of the present disclosure, the following description will explain the drawings that are required to be used in the embodiments or the background of the present disclosure.

Fig. 1 is an architecture diagram of a communication system provided by an embodiment of the present disclosure;

fig. 2 is a flowchart of a data transmission method provided in an embodiment of the present disclosure;

fig. 3 is a schematic diagram of data transmission performed by a first terminal device according to an embodiment of the present disclosure;

FIG. 4 is a flow chart of another data transmission method provided by an embodiment of the present disclosure;

FIG. 5 is a flow chart of yet another data transmission method provided by an embodiment of the present disclosure;

FIG. 6 is a flow chart of yet another data transmission method provided by an embodiment of the present disclosure;

FIG. 7 is a flow chart of yet another data transmission method provided by an embodiment of the present disclosure;

FIG. 8 is a flow chart of yet another data transmission method provided by an embodiment of the present disclosure;

Fig. 9 is a schematic diagram of data transmission performed by another first terminal device according to an embodiment of the present disclosure;

FIG. 10 is a flow chart of yet another data transmission method provided by an embodiment of the present disclosure;

FIG. 11 is a flow chart of yet another data transmission method provided by an embodiment of the present disclosure;

FIG. 12 is a flow chart of yet another data transmission method provided by an embodiment of the present disclosure;

fig. 13 is a flowchart of yet another data transmission method provided by an embodiment of the present disclosure;

FIG. 14 is a flow chart of yet another data transmission method provided by an embodiment of the present disclosure;

fig. 15 is a block diagram of a communication device provided by an embodiment of the present disclosure;

fig. 16 is a block diagram of another communication device provided by an embodiment of the present disclosure;

fig. 17 is a schematic structural diagram of a chip according to an embodiment of the disclosure.

Detailed Description

In order to better understand a data transmission method and apparatus disclosed in an embodiment of the present disclosure, a description is first given below of a communication system to which the embodiment of the present disclosure is applicable.

Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present disclosure and are not to be construed as limiting the present disclosure. Wherein, in the description of the present disclosure, "/" means or is meant unless otherwise indicated, e.g., a/B may represent a or B; "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone.

Referring to fig. 1, fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the disclosure. The number and form of the devices shown in fig. 1 are only for example and not limiting the embodiments of the disclosure, and two or more network side devices and two or more terminal devices may be included in the practical application. The communication system 10 shown in fig. 1 is exemplified as including a network device 101 and a terminal device 102.

It should be noted that the technical solution of the embodiment of the present disclosure may be applied to various communication systems. For example: a long term evolution (long term evolution, LTE) system, a fifth generation (5th generation,5G) mobile communication system, a 5G New Radio (NR) system, or other future new mobile communication systems, etc.

The network device 101 in the embodiment of the present disclosure is an entity for transmitting or receiving a signal on the network side. For example, the network device 101 may be an evolved NodeB (eNB), a transmission point (transmission reception point, TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (wireless fidelity, wiFi) system, etc. The embodiments of the present disclosure do not limit the specific technology and specific device configuration employed by the network device. The network device provided by the embodiment of the disclosure may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a control unit (control unit), and the network device, for example, a protocol layer of the network device, may be split by adopting a CU-DU structure, and functions of a part of the protocol layer are put in the CU for centralized control, and functions of a part or all of the protocol layer are distributed in the DU, so that the CU centrally controls the DU.

The terminal device 102 in the embodiments of the present disclosure is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device may also be referred to as a User Equipment (UE), a terminal (terminal), a Mobile Station (MS), a Mobile Terminal (MT), or the like. The terminal device may be an automobile with a communication function, a smart car, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned-driving (self-driving), a wireless terminal device in teleoperation (remote medical surgery), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), or the like. The embodiment of the present disclosure does not limit the specific technology and the specific device configuration adopted by the terminal device.

It may be understood that, the communication system described in the embodiments of the present disclosure is for more clearly describing the technical solutions of the embodiments of the present disclosure, and is not limited to the technical solutions provided in the embodiments of the present disclosure, and those skilled in the art can know that, with the evolution of the system architecture and the appearance of new service scenarios, the technical solutions provided in the embodiments of the present disclosure are equally applicable to similar technical problems.

Further, in order to facilitate understanding of the embodiments of the present disclosure, the following description is made.

First, in embodiments of the present disclosure, "for indicating" may include for direct indication and for indirect indication. When describing a certain information for indicating a, it may be included that the information indicates a directly or indirectly, and does not necessarily represent that a is carried in the information.

In the specific implementation process, the manner of indicating the information to be indicated is various, for example, but not limited to, the information to be indicated may be directly indicated, such as the information to be indicated itself or an index of the information to be indicated. The information to be indicated can also be indicated indirectly by indicating other information, wherein the other information and the information to be indicated have an association relation. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance. For example, the indication of the specific information may also be achieved by means of a pre-agreed (e.g., protocol-specified) arrangement sequence of the respective information, thereby reducing the indication overhead to some extent.

The information to be indicated can be sent together as a whole or can be divided into a plurality of pieces of sub-information to be sent separately, and the sending periods and/or sending occasions of the sub-information can be the same or different. The specific transmission method is not limited by the disclosure. Wherein the transmission period and/or the transmission occasion of these sub-information may be predefined, for example predefined according to a protocol.

Second, the first, second, and various numerical numbers (e.g., "#1", "# 2") in this disclosure are merely for ease of description and are not intended to limit the scope of embodiments of this disclosure. For example, different terminal devices, etc.

Third, the "protocol" referred to in the embodiments of the present disclosure may refer to a standard protocol in the field of communications, and may include, for example, LTE protocol, NR protocol, WLAN protocol, and other related protocols in a communication system, which is not limited in this disclosure.

Fourth, the embodiments of the present disclosure enumerate several means to clearly illustrate the technical solutions of the embodiments of the present disclosure. Of course, those skilled in the art will appreciate that the various embodiments provided in the embodiments of the disclosure may be implemented separately, may be implemented in combination with the methods of other embodiments of the disclosure, and may be implemented separately or in combination with some methods of other related technologies; the embodiments of the present disclosure are not so limited.

Under the unlicensed frequency band, the first terminal device works under the shared frequency spectrum, and after LBT is successful, the first terminal device can support data transmission of a plurality of continuous time slots, while in the related-art sidelink time slot structure, the last 1 symbol in each time slot is guard symbol, and no data is transmitted.

To support continuous multiple slot transmission, the last symbol of the other slots except the last slot of the continuous multiple slots is designed to transmit data, i.e., PSSCH. However, in some scenarios, the last symbol of a slot is used to transmit data, which may cause a block problem between UEs, resulting in failure of LBT of other UEs, so that the last symbol of a slot is used as the transmission data only when a certain condition is satisfied. It is necessary to determine a condition that data is transmitted using the last symbol of the other slots except the last slot in consecutive multi-slot transmission.

Based on this, in the embodiment of the present disclosure, when a specific condition is satisfied, it is designed that the last 1 symbol of other slots than the last 1 slots of the consecutive multiple slots is used for data transmission, that is, the PSSCH may be transmitted.

In an embodiment of the present disclosure, a data transmission method is provided, where when a specific condition is satisfied, a first terminal device determines to use a target symbol in a plurality of consecutive slots to perform a data transmission of a sidelink, where the target symbol includes a last symbol in a plurality of consecutive slots except for the last slot. Therefore, the first terminal equipment can be supported to use the last symbol of other time slots except the last time slot to transmit data in the continuous transmission of a plurality of time slots, so that the resource waste is avoided, and the utilization rate of the resource can be improved.

A data transmission method and apparatus provided by the present disclosure are described in detail below with reference to the accompanying drawings.

Referring to fig. 2, fig. 2 is a flowchart of a data transmission method according to an embodiment of the disclosure. The method is applied to data transmission of a side uplink sidelink of a plurality of continuous time slots, and as shown in fig. 2, the method is executed by a first terminal device, and the method may include, but is not limited to, the following steps:

s21: and when the specific condition is met, determining to use the target symbol in the continuous multiple time slots for the data transmission of the sidelink, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the continuous multiple time slots.

In the embodiment of the disclosure, the first terminal device has selected resources of a continuous plurality of slots (slots), and will perform data transmission of the continuous plurality of slots.

Illustratively, the first terminal device has selected resources for M consecutive slots and will make consecutive transmissions of length M slots, M being an integer greater than 1.

Wherein the first terminal device performs data transmission of consecutive time slots, for example, physical side link shared channel (Physicalsidelink shared channel, PSSCH) transmission may be performed.

The first terminal device may determine to use a target symbol in a plurality of consecutive slots to perform data transmission of the sidelink when a specific condition is satisfied, where the target symbol includes a last symbol in other slots except for the last slot in the plurality of consecutive slots.

In the embodiment of the present disclosure, the specific condition may be that, among a plurality of consecutive time slots used by the first terminal device, the last symbol of the time slot other than the last time slot does not exist, or the data transmission needs to be performed by the other terminal device or LBT needs to be performed, or the specific condition may also be that, among the plurality of consecutive time slots used by the first terminal device, the last symbol of the time slot other than the last time slot has the highest priority for performing the data transmission, and so on.

It can be understood that if the last symbol of the other slots except the last slot in the continuous multiple slots used by the first terminal device does not exist, the other terminal devices need to perform data transmission or need to perform LBT, and at this time, when the first terminal device uses the last symbol of the other slots except the last slot in the continuous multiple slots to perform data transmission, no interference exists, and data transmission of the first terminal device can be ensured.

Of course, in the embodiment of the present disclosure, the specific condition may be other conditions, which is not particularly limited by the embodiment of the present disclosure.

Illustratively, as shown in fig. 3, the first terminal device uses 4 consecutive slots for the data transmission of the sidelink.

When a specific condition is met, the first terminal device determines to use a target symbol in 4 consecutive time slots to perform data transmission of the sidelink, wherein the target symbol comprises the last symbol of other time slots except for the 4 th time slot in the 4 th time slot, and as shown in fig. 3, the target symbol comprises a, b and c except d.

In the embodiment of the present disclosure, the first terminal device may use all symbols except d in the first time slot, the second time slot, the third time slot, and the fourth time slot to perform the data transmission of the sidelink. Therefore, the first terminal equipment can be ensured to use the last symbol of other time slots except the last time slot to transmit data in the continuous transmission of a plurality of time slots, so that the resource waste can be avoided, and the resource utilization rate can be improved.

It should be noted that the above examples are only illustrative, and not as a specific limitation on the embodiments of the present disclosure, the first terminal device may also use time slots other than 4 in succession, for example, 5 time slots in succession, 6 time slots in succession, and so on.

By implementing the embodiment of the disclosure, when a specific condition is met, the first terminal device determines to use a target symbol in a plurality of continuous time slots for performing data transmission of the sidelink, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the plurality of continuous time slots. Therefore, the first terminal equipment can be ensured to use the last symbol of other time slots except the last time slot to transmit data in the continuous transmission of a plurality of time slots, so that the resource waste can be avoided, and the resource utilization rate can be improved.

Referring to fig. 4, fig. 4 is a flowchart of another data transmission method according to an embodiment of the disclosure. The method is applied to data transmission of a side uplink sidelink of a plurality of continuous time slots, and as shown in fig. 4, the method is executed by a first terminal device, and the method may include, but is not limited to, the following steps:

s41: and when the condition that the transmission bandwidth of the first terminal equipment occupies all Resource Blocks (RBs) of the whole resource pool is met, and the indication information configured based on the resource pool is a first value, determining to use a target symbol in a plurality of continuous time slots to perform data transmission of the sidelink, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the plurality of continuous time slots.

In some embodiments, the indication information is used to indicate that the resource pool occupies all RBs in the RB set when the indication information is a first value.

In some possible implementations, the first value is 1.

In the embodiment of the present disclosure, when the indication information is a first value, that is, 1, the indication resource pool occupies all RBs in the RB set.

In the embodiment of the present disclosure, when the first terminal device occupies all the resource blocks RBs of the entire resource pool in the transmission bandwidth, and the indication information configured based on the resource pool is a first value, that is, 1, and indicates that the resource pool occupies all the RBs in the RB set, it may be determined that the target symbol in the continuous multiple timeslots is used for performing data transmission of the sidelink, where the target symbol includes the last symbol in the continuous multiple timeslots, except for the last slot.

At this time, the second terminal equipment which is frequency division multiplexed with the first terminal equipment does not exist in the RB set, so that inter-UE block can be avoided, and data transmission of the first terminal equipment is ensured.

In the embodiment of the disclosure, the first terminal device may determine a transmission bandwidth when performing data transmission, and may determine whether the transmission bandwidth occupies all Resource Blocks (RBs) of the entire Resource pool.

In some possible implementations, the first terminal device may receive a resource pool configured by the network device, where a start position and an end position of the resource pool are indicated, and indication information corresponding to the resource pool is also indicated. The first terminal device may determine whether the transmission bandwidth occupies all RBs of the entire resource pool according to the start position and the end position of the resource pool.

In the embodiment of the present disclosure, the RB set is RB set, generally 20mhz, and the RB set is a basic unit of LBT performed by the first terminal device.

In the embodiment of the present disclosure, when the transmission bandwidth occupies all resource blocks RB of the entire resource pool, and the indication information based on the resource pool configuration is a first value, that is, 1, it may be determined that the last symbol of the other slots except the last slot is used for performing the data transmission of the sidelink in the continuous multiple slots.

It can be understood that the transmission bandwidth of the first terminal device occupies all the resource blocks RB of the entire resource pool, and based on the indication information configured by the resource pool being 1, the indication resource pool occupies all the RBs in the RB set, at this time, no other terminal devices in the RB set are in frequency division multiplexing with the first terminal device, that is, no other terminal devices in the RB set need to perform data transmission or LBT, and the first terminal device uses the target symbol in the continuous multiple time slots to perform the data transmission of the sidelink, where the target symbol includes the last symbol in the continuous multiple time slots, and the other time slots except the last symbol can ensure the data transmission of the first terminal device.

In some embodiments, when the transmission bandwidth occupies all resource blocks RB of the entire resource pool, and the indication information configured based on the resource pool is the second value, the first terminal device may determine not to use the last symbol of the other slots except the last slot in the continuous multiple slots to perform the data transmission of the sidelink.

Wherein the second value may be 0, for indicating that the resource pool does not occupy all RBs in the RB set. I.e. there are multiple resource pools for frequency division multiplexing in the RB set.

It should be noted that, in the embodiment of the present disclosure, S41 may be implemented alone or in combination with any one of the other steps in the embodiment of the present disclosure, for example, in combination with S21 in the embodiment of the present disclosure, which is not limited thereto.

By implementing the embodiment of the disclosure, when the first terminal device satisfies that the transmission bandwidth of the first terminal device occupies all resource blocks RB of the entire resource pool, and the indication information configured based on the resource pool is a first value, determining to use a target symbol in a plurality of consecutive time slots to perform data transmission of a sidelink, where the target symbol includes a last symbol in the plurality of consecutive time slots except for the last time slot. Therefore, the first terminal equipment can be ensured to use the last symbol of other time slots except the last time slot to transmit data in the continuous transmission of a plurality of time slots, so that the resource waste can be avoided, and the resource utilization rate can be improved.

Referring to fig. 5, fig. 5 is a flowchart of yet another data transmission method according to an embodiment of the disclosure. The method is applied to data transmission of a side uplink sidelink of a plurality of continuous time slots, and as shown in fig. 5, the method is executed by a first terminal device, and the method may include, but is not limited to, the following steps:

s51: when the transmission bandwidth of the first terminal equipment is satisfied as part of RBs in one RB set, and a second terminal equipment which is frequency division multiplexed with the first terminal equipment and uses continuous multiple time slots with the same time slot length to perform data transmission exists in the RB set, determining to use a target symbol in the continuous multiple time slots to perform data transmission of a sidelink, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the continuous multiple time slots.

In the embodiment of the disclosure, when the first terminal device is part of an RB in one RB set, and there is one or more second terminal devices that perform data transmission using a plurality of consecutive slots with the same slot length in the RB set, it may be determined that data transmission of a sidelink is performed using a target symbol in the plurality of consecutive slots, where the target symbol includes a last symbol of other slots except for the last slot in the plurality of consecutive slots.

In some embodiments, the first terminal device and the one or more second terminal devices begin transmitting data using consecutive time slots at the same time location of one time slot.

It can be appreciated that the transmission bandwidth of the first terminal device is a portion of RBs in an RB set in which there is frequency division multiplexing with the first terminal device, and one or more second terminal devices that start to use consecutive slots of the same length for data transmission at the same time position of one slot. At this time, when the first terminal device uses the last symbol of a time slot to perform data transmission, other terminal devices need to perform LBT on the last symbol of the time slot, that is, the channel is not busy, so that the data transmission of the first terminal device can be ensured.

In some embodiments, in a case where the transmission bandwidth is a part of RBs in one RB set, where there is frequency division multiplexing with the first terminal device in the RB set and one or more second terminal devices that start to use consecutive multiple slots with the same slot length for data transmission are not in the same time position of one slot, it may be determined that the last symbol of the other slots except the last slot in the consecutive multiple slots is not used for data transmission of the sidelink.

In some embodiments, in a case where the transmission bandwidth of the first terminal device is a part of RBs in one RB set, frequency division multiplexing with the first terminal device exists in the RB set, and one or more second terminal devices that start to use consecutive multiple slots with different lengths for data transmission in the same time position of one slot, it may be determined that the last symbol of the other slots except for the last slot among the consecutive multiple slots is not used for data transmission of the sidelink.

It should be noted that, in the embodiment of the present disclosure, S51 may be implemented alone or in combination with any one of the other steps in the embodiment of the present disclosure, for example, in combination with S21 and/or S41 in the embodiment of the present disclosure, which is not limited in this embodiment of the present disclosure.

By implementing the embodiment of the disclosure, when the first terminal device satisfies that the transmission bandwidth of the first terminal device is part of RBs in one RB set, and there is a second terminal device that performs data transmission using a plurality of consecutive slots with the same slot length in the RB set, determining to perform data transmission of a sidelink using a target symbol in the plurality of consecutive slots, where the target symbol includes a last symbol of other slots except for the last slot in the plurality of consecutive slots. Therefore, the first terminal equipment can be ensured to use the last symbol of other time slots except the last time slot to transmit data in the continuous transmission of a plurality of time slots, so that the resource waste can be avoided, and the resource utilization rate can be improved.

Referring to fig. 6, fig. 6 is a flowchart of yet another data transmission method according to an embodiment of the disclosure. The method is applied to data transmission of a side uplink sidelink of a plurality of continuous time slots, and as shown in fig. 6, the method is executed by a first terminal device, and the method may include, but is not limited to, the following steps:

s61: by monitoring the first stage side link control information SCI or the second stage SCI of the second terminal device, it is determined whether the second terminal device uses a continuous plurality of time slots of the same time slot length for data transmission as the first terminal device.

In the embodiment of the disclosure, the first terminal device may determine whether the second terminal device uses a plurality of consecutive slots with the same slot length for data transmission with the first terminal device by listening to the first stage side link control information (sidelink control information, SCI) or the second stage SCI of the second terminal device.

The first stage SCI or the second stage SCI of the second terminal device indicates a time slot length of continuous transmission of the second terminal device, that is, the number of time slots of continuous time slot transmission.

Illustratively, the first terminal device listens to the first stage SCI of the second terminal device, the first stage SCI indicating to the second terminal device to use consecutive N time slots for data transmission, N being an integer greater than 1.

When the number of time slots of the first terminal device for data transmission using a plurality of continuous time slots is also N, the first terminal device may determine that the transmission bandwidth of the first terminal device is a part of RBs in one RB set, and there is a second terminal device for data transmission using a plurality of continuous time slots with the same time slot length in the RB set.

When the number of time slots of the first terminal device for data transmission using a plurality of continuous time slots is not N, the first terminal device may determine that the transmission bandwidth of the first terminal device is a part of RBs in one RB set, and there is no second terminal device for data transmission using a plurality of continuous time slots with the same time slot length in the RB set.

S62: when the transmission bandwidth of the first terminal equipment is satisfied as part of RBs in one RB set, and a second terminal equipment which is frequency division multiplexed with the first terminal equipment and uses continuous multiple time slots with the same time slot length to perform data transmission exists in the RB set, determining to use a target symbol in the continuous multiple time slots to perform data transmission of a sidelink, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the continuous multiple time slots.

The description of S62 may be referred to the description of the above embodiment, and will not be repeated here.

It should be noted that, in the embodiment of the present disclosure, S61 and S62 may be implemented separately, or may be implemented in combination with any one of the other steps in the embodiment of the present disclosure, for example, in combination with S21 and/or S41 and/or S51 in the embodiment of the present disclosure, which is not limited thereto.

By implementing the embodiment of the disclosure, the first terminal device determines whether the second terminal device uses a plurality of continuous time slots with the same time slot length for data transmission with the first terminal device by monitoring the first stage side link control information SCI or the second stage SCI of the second terminal device, when the transmission bandwidth of the first terminal device is satisfied as part of RBs in one RB set, and when the second terminal device which is in frequency division multiplexing with the first terminal device and uses a plurality of continuous time slots with the same time slot length for data transmission exists in the RB set, determining to use a target symbol in the plurality of continuous time slots for data transmission of a sidelink, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the plurality of continuous time slots. Therefore, the first terminal equipment can be ensured to use the last symbol of other time slots except the last time slot to transmit data in the continuous transmission of a plurality of time slots, so that the resource waste can be avoided, and the resource utilization rate can be improved.

Referring to fig. 7, fig. 7 is a flowchart of yet another data transmission method according to an embodiment of the disclosure. The method is applied to data transmission of a side uplink sidelink of a plurality of continuous time slots, and as shown in fig. 7, the method is executed by a first terminal device, and the method may include, but is not limited to, the following steps:

s71: according to the configuration of the resource pool or the configuration of the bandwidth part BWP, determining whether the second terminal device uses a plurality of continuous time slots with the same time slot length for data transmission with the first terminal device.

In the embodiment of the disclosure, the first terminal may determine, according to the configuration of the resource pool, whether the second terminal device uses a plurality of consecutive time slots with the same time slot length to perform data transmission with the first terminal device.

In the embodiment of the present disclosure, the first terminal may determine whether the second terminal device uses a plurality of consecutive slots with the same slot length for data transmission as the first terminal device according to a configuration of a bandwidth part (BWP).

It can be appreciated that when the first terminal device transmits a portion of the RB in the bandwidth of one RB set, there are one or more second terminal devices in the RB set that are frequency division multiplexed with the first terminal device.

At this time, if the first terminal determines that the data transmission is performed in a plurality of consecutive time slots according to the configuration of the resource pool or the configuration of the bandwidth portion, the first terminal device may determine that one or more second terminal devices that are frequency division multiplexed with the first terminal device exist in the RB set, and the lengths of the time slots in which the first terminal and the second terminal devices perform the transmission in a plurality of consecutive time slots are the same.

If the first terminal determines to perform data transmission in a plurality of continuous time slots according to the configuration of the resource pool or the configuration of the bandwidth portion, the first terminal and one or more second terminal devices that are frequency division multiplexed with the first terminal device in one RB set all use the same length of the plurality of continuous time slots to perform data transmission. Based on this, the first terminal device may determine that there are one or more second terminal devices in the RB set that are frequency division multiplexed with the first terminal device, and that the first terminal and the second terminal devices perform consecutive multiple slot transmission each have the same slot length.

S72: when the transmission bandwidth of the first terminal equipment is satisfied as part of RBs in one RB set, and a second terminal equipment which is frequency division multiplexed with the first terminal equipment and uses continuous multiple time slots with the same time slot length to perform data transmission exists in the RB set, determining to use a target symbol in the continuous multiple time slots to perform data transmission of a sidelink, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the continuous multiple time slots.

The description of S72 may be referred to the description of the foregoing embodiments, and will not be repeated here.

It should be noted that, in the embodiment of the present disclosure, S71 and S72 may be implemented separately, or may be implemented in combination with any one of the other steps in the embodiment of the present disclosure, for example, in combination with S21 and/or S41 and/or S51 in the embodiment of the present disclosure, which is not limited thereto.

By implementing the embodiment of the disclosure, the first terminal device determines whether the second terminal device uses a plurality of continuous time slots with the same time slot length for data transmission with the first terminal device according to the configuration of the resource pool or the configuration of the bandwidth part BWP, when the transmission bandwidth of the first terminal device is satisfied as part of RBs in one RB set, and when the second terminal device which is frequency division multiplexed with the first terminal device and uses a plurality of continuous time slots with the same time slot length for data transmission exists in the RB set, the target symbol in the plurality of continuous time slots is determined to be used for data transmission of the sidelink, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the plurality of continuous time slots. Therefore, the first terminal equipment can be ensured to use the last symbol of other time slots except the last time slot to transmit data in the continuous transmission of a plurality of time slots, so that the resource waste can be avoided, and the resource utilization rate can be improved.

Referring to fig. 8, fig. 8 is a flowchart of yet another data transmission method according to an embodiment of the disclosure. The method is applied to data transmission of a side uplink sidelink of a plurality of continuous time slots, and as shown in fig. 8, the method is executed by a first terminal device, and the method may include, but is not limited to, the following steps:

s81: and determining that the target symbol in the continuous multiple time slots is used for the data transmission of the sidelink when the starting symbol of the continuous multiple time slot transmission is the second starting symbol in one time slot, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the continuous multiple time slots.

In the embodiment of the disclosure, when the start symbol transmitted in the continuous multiple time slots is the second start symbol in one time slot, the first terminal device may determine to use a target symbol in the continuous multiple time slots to perform the data transmission of the sidelink, where the target symbol includes the last symbol in the continuous multiple time slots except the last time slot.

Wherein when the first terminal device LBT succeeds, starts to access the channel from the position of the second start symbol of one slot, and starts continuous multi-slot transmission, the first terminal device may transmit data (e.g. PSSCH) using the last symbol of other slots than the last slot of the continuous multi-slot.

It will be appreciated that the first terminal device may start accessing the channel at the first start symbol of a slot or may also start accessing the channel at a position other than the first start symbol.

Illustratively, as shown in fig. 9, after the first terminal device LBT succeeds, the access channel starts from the position of the second start symbol of the first slot, and starts transmission of 5 consecutive slots, the last symbol of the first slot, the second slot, the third slot and the fourth slot is used as data transmission, and the last symbol of the fifth slot is used as guard symbol.

Typically, the second start symbol in a slot is located at the fourth or seventh symbol of the slot.

It should be noted that, in the embodiment of the present disclosure, S81 may be implemented alone or in combination with any one of the other steps in the embodiment of the present disclosure, for example, in combination with S21 and/or S41 and/or S51 and/or S61 and S62 and/or S71 and S72 in the embodiment of the present disclosure, which is not limited in the embodiment of the present disclosure.

By implementing the embodiment of the disclosure, when the first terminal device satisfies that the starting symbol transmitted in the continuous multiple time slots is the second starting symbol in one time slot, determining to use the target symbol in the continuous multiple time slots for performing the data transmission of the sidelink, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the continuous multiple time slots. Therefore, the first terminal equipment can be ensured to use the last symbol of other time slots except the last time slot to transmit data in the continuous transmission of a plurality of time slots, so that the resource waste can be avoided, and the resource utilization rate can be improved.

Referring to fig. 10, fig. 10 is a flowchart of yet another data transmission method according to an embodiment of the disclosure. The method is applied to data transmission of a side uplink sidelink of a plurality of continuous time slots, and as shown in fig. 10, the method is executed by a first terminal device, and the method may include, but is not limited to, the following steps:

s101: and when the value of the layer 1 priority of the data to be transmitted of the first terminal equipment is smaller than or equal to a first threshold value, determining to use a target symbol in a plurality of continuous time slots for carrying out data transmission of the sidelink, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the plurality of continuous time slots.

In the embodiment of the present disclosure, when the value of the layer 1 priority of the data to be transmitted is smaller than the first threshold, the first terminal device may determine to use a target symbol in a plurality of consecutive slots to perform data transmission of the sidelink, where the target symbol includes a last symbol in a plurality of consecutive slots except for the last slot.

In the embodiment of the present disclosure, when the value of the layer 1 priority of the data to be transmitted is equal to the first threshold, the first terminal device may determine to use a target symbol in a plurality of consecutive slots to perform data transmission of the sidelink, where the target symbol includes a last symbol in a plurality of consecutive slots except for the last slot.

In the embodiment of the disclosure, the first terminal device may determine the first threshold based on implementation, or may further determine the first threshold based on an indication of the network device, or may further determine the first threshold based on a protocol convention.

In some embodiments, the first terminal device receives configuration information sent by the network side device, where the configuration information is used to indicate the first threshold.

In some embodiments, the first threshold may be 1 or 2.

It should be noted that, in the embodiment of the present disclosure, S101 may be implemented alone or in combination with any one of the other steps in the embodiment of the present disclosure, for example, in combination with S21 and/or S41 and/or S51 and/or S61 and S62 and/or S71 and S72 and/or S81 in the embodiment of the present disclosure, which is not limited in the embodiment of the present disclosure.

By implementing the embodiment of the present disclosure, when the first terminal device satisfies that the value of the layer 1 priority of the data to be transmitted of the first terminal device is less than or equal to the first threshold, determining to use a target symbol in a plurality of consecutive time slots to perform data transmission of a sidelink, where the target symbol includes a last symbol in other time slots except the last time slot in the plurality of consecutive time slots. Therefore, the first terminal equipment can be ensured to use the last symbol of other time slots except the last time slot to transmit data in the continuous transmission of a plurality of time slots, so that the resource waste can be avoided, and the resource utilization rate can be improved.

Referring to fig. 11, fig. 11 is a flowchart of yet another data transmission method according to an embodiment of the disclosure. The method is applied to data transmission of a side uplink sidelink of a plurality of continuous time slots, and as shown in fig. 11, the method is executed by a first terminal device, and the method may include, but is not limited to, the following steps:

s111: and when the value of the CAPC of the data to be transmitted is smaller than or equal to a second threshold value, determining to use a target symbol in the continuous multiple time slots for transmitting the data of the sidelink, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the continuous multiple time slots.

In the embodiment of the disclosure, when the value of the channel access priority level (channel access priority class, CAPC) of the data to be transmitted is smaller than the second threshold, the first terminal device may determine to use a target symbol in the consecutive multiple slots for performing the data transmission of the sidelink, where the target symbol includes a last symbol in the consecutive multiple slots except for the last slot.

In the embodiment of the present disclosure, when the value of the cap of the data to be transmitted is equal to the second threshold, the first terminal device may determine to use a target symbol in a plurality of consecutive slots to perform data transmission of the sidelink, where the target symbol includes a last symbol of other slots except for the last slot in the plurality of consecutive slots.

In the embodiment of the disclosure, the first terminal device may determine the second threshold based on implementation, or may also determine the second threshold based on an indication of the network device, or may also determine the second threshold based on protocol conventions.

In some embodiments, the first terminal device receives configuration information sent by the network side device, where the configuration information is used to indicate the second threshold.

In some embodiments, the second threshold may be 1 or 2.

It should be noted that, in the embodiment of the present disclosure, S111 may be implemented alone or in combination with any one of the other steps in the embodiment of the present disclosure, for example, in combination with S21 and/or S41 and/or S51 and/or S61 and S62 and/or S71 and S72 and/or S81 and/or S101 in the embodiment of the present disclosure, which is not limited by the embodiment of the present disclosure.

By implementing the embodiment of the disclosure, when the value of the CAPC of the data to be transmitted is less than or equal to the second threshold, the first terminal device determines to use the target symbol in the continuous multiple time slots to perform the data transmission of the sidelink, where the target symbol includes the last symbol of the continuous multiple time slots except the last time slot. Therefore, the first terminal equipment can be ensured to use the last symbol of other time slots except the last time slot to transmit data in the continuous transmission of a plurality of time slots, so that the resource waste can be avoided, and the resource utilization rate can be improved.

Referring to fig. 12, fig. 12 is a flowchart of yet another data transmission method according to an embodiment of the disclosure. The method is applied to data transmission of a side uplink sidelink of a plurality of continuous time slots, and as shown in fig. 12, the method is executed by a first terminal device, and the method may include, but is not limited to, the following steps:

s121: and when the value of the layer 1 priority of the data to be transmitted is equal to the first specific value and/or the CAPC value is equal to the second specific value, determining to use a target symbol in a plurality of continuous time slots for transmitting the data of the sidelink, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the plurality of continuous time slots.

In the embodiment of the present disclosure, when the value of the layer 1 priority of the data to be transmitted is equal to the first specific value, the first terminal device may determine to use a target symbol in a plurality of consecutive slots for performing data transmission of the sidelink, where the target symbol includes a last symbol of other slots except for the last slot in the plurality of consecutive slots.

In the embodiment of the disclosure, the first terminal device may determine to use a target symbol in a plurality of consecutive slots to perform data transmission of a sidelink when a cap value of data to be transmitted is equal to a second specific value, where the target symbol includes a last symbol of other slots except for the last slot in the plurality of consecutive slots.

It should be noted that the foregoing embodiments are not exhaustive, but are merely illustrative of some embodiments, and the embodiments may be implemented alone or in combination of two or more, and the embodiments are merely illustrative, and are not intended to limit the scope of the embodiments of the present disclosure.

In the embodiment of the disclosure, the first terminal device may determine the first specific value based on implementation, or may also determine the first specific value based on an indication of the network device, or may also determine the first specific value based on a protocol convention.

In the embodiment of the disclosure, the first terminal device may determine the second specific value based on implementation, or may also determine the second specific value based on an indication of the network device, or may also determine the second specific value based on a protocol convention.

In some embodiments, the first particular value is 0, or the second particular value is 1.

In the embodiment of the present disclosure, the first specific value may be 0, or the second specific value may be 1.

It should be noted that, in the embodiment of the present disclosure, S121 may be implemented alone or in combination with any one of the other steps in the embodiment of the present disclosure, for example, in combination with S21 and/or S41 and/or S51 and/or S61 and S62 and/or S71 and S72 and/or S81 and/or S101 and/or S111 in the embodiment of the present disclosure, which is not limited in the embodiment of the present disclosure.

By implementing the embodiment of the disclosure, when the value of the layer 1 priority of the data to be transmitted is equal to the first specific value and/or the cap value is equal to the second specific value, the first terminal device determines to use a target symbol in a plurality of consecutive time slots to perform data transmission of the sidelink, wherein the target symbol comprises the last symbol in other time slots except the last time slot in the plurality of consecutive time slots. Therefore, the first terminal equipment can be ensured to use the last symbol of other time slots except the last time slot to transmit data in the continuous transmission of a plurality of time slots, so that the resource waste can be avoided, and the resource utilization rate can be improved.

Referring to fig. 13, fig. 13 is a flowchart of yet another data transmission method according to an embodiment of the disclosure. The method is applied to the data transmission of the sidelink of the continuous multiple time slots, as shown in fig. 13, and the method is executed by the first terminal device, and may include, but is not limited to, the following steps:

s131: when the specific condition is not met, determining to cancel the data transmission of the sidelink by using the target symbol in the continuous multiple time slots, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the continuous multiple time slots.

In some embodiments, the specific conditions include: the transmission bandwidth of the first terminal device occupies all resource blocks RB of the entire resource pool, and is a first value based on the indication information of the resource pool configuration.

In some embodiments, the specific conditions include: the transmission bandwidth of the first terminal device is part of RBs in an RB set, and a second terminal device which is in frequency division multiplexing with the first terminal device and uses a plurality of continuous time slots with the same time slot length for data transmission exists in the RB set.

In some embodiments, the first terminal device and the second terminal device begin transmitting data using consecutive time slots at the same time location of one time slot.

In some embodiments, the first terminal device determines whether the second terminal device uses consecutive multiple time slots of the same time slot length for data transmission as the first terminal device by listening to the first stage side link control information SCI or the second stage SCI of the second terminal device.

In some embodiments, the first terminal device determines whether the second terminal device uses a consecutive plurality of time slots of the same time slot length for data transmission as the first terminal device according to the configuration of the resource pool, or the configuration of the bandwidth portion BWP.

In some embodiments, the specific conditions include: the starting symbol transmitted in successive slots is the second starting symbol in one slot.

In some embodiments, the specific condition includes at least one of:

the value of the layer 1 priority of the data to be transmitted of the first terminal device is smaller than a first threshold value;

the value of the layer 1 priority of the data to be transmitted of the first terminal device is equal to a first threshold value;

the value of the channel access priority level CAPC of the data to be transmitted of the first terminal device is smaller than a second threshold value;

the value of the cap of the data to be transmitted of the first terminal device is equal to the second threshold value.

In some embodiments, the first terminal device receives configuration information sent by the network side device, where the configuration information is used to indicate the first threshold or the second threshold.

In some embodiments, the specific condition includes at least one of:

the value of the layer 1 priority of the data to be transmitted of the first terminal device is equal to the first specific value;

the cap value of the data to be transmitted of the first terminal device is equal to the second specific value.

The description of S131 may be referred to the description of the foregoing embodiments, and will not be repeated here.

By implementing the embodiment of the disclosure, when a specific condition is not met, the first terminal device determines to cancel the data transmission of the sidelink by using the target symbol in the continuous multiple time slots, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the continuous multiple time slots. Therefore, the first terminal equipment can be ensured to use the last symbol of other time slots except the last time slot to transmit data in the continuous transmission of a plurality of time slots, so that the resource waste can be avoided, and the resource utilization rate can be improved.

Referring to fig. 14, fig. 14 is a flowchart of yet another data transmission method according to an embodiment of the disclosure. The method is applied to the data transmission of a sidelink of a plurality of continuous time slots, and as shown in fig. 14, the method is executed by a network device, and the method may include, but is not limited to, the following steps:

s141: transmitting configuration information to the first terminal device, wherein the configuration information is used for indicating a first threshold or a second threshold, the first threshold is used for transmitting data of a sidelink by using target symbols in a plurality of continuous time slots under the condition that the first terminal device determines that the value meeting the layer 1 priority of data to be transmitted is smaller than or equal to the first threshold,

Or the second threshold value is used for the first terminal device to perform the data transmission of the sidelink by using the target symbol in a plurality of continuous time slots under the condition that the value of the CAPC meeting the data to be transmitted is less than or equal to the second threshold value,

wherein the target symbol comprises the last symbol of other time slots except the last time slot in the continuous multiple time slots.

In the embodiment of the disclosure, the network device may send configuration information to the first terminal device, where the configuration information is used to indicate the first threshold or the second threshold.

The first threshold is used for the first terminal device to perform the data transmission of the sidelink by using the target symbol in the continuous multiple time slots under the condition that the value meeting the layer 1 priority of the data to be transmitted is smaller than or equal to the first threshold. Thus, the first terminal device may determine the first threshold value when receiving the configuration information sent by the network device, and based on this, in a case that the value of the layer 1 priority of the data to be sent is less than or equal to the first threshold value, may use a target symbol in a plurality of consecutive time slots to perform data transmission of the sidelink, where the target symbol includes a last symbol in other time slots except for the last time slot in the plurality of consecutive time slots.

The second threshold is used for the first terminal device to perform the data transmission of the sidelink by using the target symbol in the continuous multiple time slots under the condition that the value of the CAPC meeting the data to be transmitted is smaller than or equal to the second threshold. Thus, the first terminal device may determine the second threshold value when receiving the configuration information sent by the network device, and based on this, in a case where the value of the CAPC of the data to be sent is less than or equal to the second threshold value, may use the target symbol in the consecutive multiple time slots to perform data transmission of the sidelink, where the target symbol includes the last symbol in the consecutive multiple time slots, where the last symbol is other than the last time slot.

In some embodiments, the first threshold may be 1 or 2, or the second threshold may be 1 or 2.

By implementing the embodiment of the present disclosure, the network device sends configuration information to the first terminal device, where the configuration information is used to indicate a first threshold or a second threshold, where the first threshold is used for the first terminal device to perform data transmission of the sidelink by using a target symbol in a continuous plurality of time slots if it is determined that a value satisfying a layer 1 priority of data to be sent is less than or equal to the first threshold, or the second threshold is used for the first terminal device to perform data transmission of the sidelink by using a target symbol in the continuous plurality of time slots if it is determined that a value satisfying a cap of data to be sent is less than or equal to the second threshold, where the target symbol includes a last symbol in other time slots except for the last time slot in the continuous plurality of time slots. Therefore, the first terminal equipment can be ensured to use the last symbol of other time slots except the last time slot to transmit data in the continuous transmission of a plurality of time slots, so that the resource waste can be avoided, and the resource utilization rate can be improved.

For the convenience of understanding the embodiments of the present disclosure, in the exemplary embodiment, the UE may support transmission of a plurality of consecutive slots after 1 LBT success when working in a shared spectrum under an unlicensed frequency band, and in the current sidelink slot structure, the last 1 symbol in each slot is a guard symbol, no data is transmitted, and in order to support continuous transmission, the last 1 symbol of other slots than the last 1 slot of the consecutive m slots is designed to transmit data, that is, PSSCH. However, in some scenarios, transmitting data using the last 1 symbol of 1 slot may cause inter-UE block problems. For example, UE1 performs data transmission in the last 1 symbol of 1 slot, and frequency domain resources FDM of UE1 and UE2 in the same RB set, when UE2 performs LBT in the last 1 symbol of 1 slot, since UE1 transmits data on the last 1 symbol, which may result in busy channel, and the result of LBT performed by UE2 is failure, the last 1 symbol of 1 slot is used as transmission data only when a certain condition is satisfied, so that the condition of transmitting data in the last 1 symbol of other slots than the last 1 slot of continuous M slots needs to be studied in continuous multislot transmission.

Assume that: the UE has selected consecutive multislot resources and will make M consecutive multislot transmissions in length, will decide whether to use the last 1 symbol of other slots than the last 1 slot of consecutive M slots to transmit PSSCH when transmitting consecutive M slots, depending on whether the following 1 or more conditions are met:

condition 1: when the transmission bandwidth of the UE is all RBs occupying the entire resource pool, it is decided according to the 1-bit indication information preconfigured based on the resource pool, and when the transmission bandwidth of the UE occupies the entire resource pool, whether the PSSCH can be transmitted at the last 1 symbols of other slots than the last 1 slots of the consecutive M slots.

1) When the resource pool occupies all RBs in the RB set, the 1-bit indication information value is 1, which means that the UE having the transmission bandwidth occupying the entire resource pool can transmit the PSSCH at the last 1 symbols of other slots than the last 1 slots of the consecutive M slots.

2) When the resource pool occupies part of RBs in the RB set (i.e., there are multiple resource pools of FDM in 1 RB set), the 1-bit indication information value is 0, which indicates that the UE with the transmission bandwidth occupying the entire resource pool cannot transmit the PSSCH at the last 1 symbol of other slots than the last 1 slot of the consecutive M slots.

Condition 2: when the UE accesses the channel from the position of the second start symbol of 1 slot and starts continuous multi-slot transmission, the UE may transmit the PSSCH at the last 1 symbol of other slots than the last 1 slot of the continuous M slots.

Condition 3: when the transmission bandwidth of the UE is a part of the RB of one RB set, the UE and other UEs of the FDM in the same RB set both start continuous multi-slot transmission from the same time position t1, and the other UEs also perform continuous multi-slot transmission with a length of M slots, the UE may transmit the PSSCH using the last 1 symbol of other slots than the last 1 slot of the continuous M slots.

How to judge that other UEs perform continuous multislot transmission with a length of M slots:

-method 1: when the length M of consecutive multislot transmissions is dynamically indicated in the control signaling, the UE determines whether consecutive multislot transmissions of length M slots are used by other UEs FDM (frequency division multiplexing) in the same RB set as the UE by listening to the first stage SCI or the second stage SCI of the other UEs.

-method 2: when the slot length M of the continuous multislot transmission is preconfigured or predefined based on the resource pool/BWP, the slot lengths of all UEs performing the continuous multislot transmission are the same, and are all M slots.

Condition 4: when the layer 1 priority value/cap value of the data to be transmitted of the UE < the threshold N, the UE may transmit the PSSCH using the last 1 symbols of other slots than the last 1 slots of consecutive M slots.

The threshold value N is predefined or preconfigured.

Condition 5: when the layer 1 priority value/cap value of the data to be transmitted by the UE is equal to a predefined/preconfigured value, the UE may transmit the PSSCH using the last 1 symbols of other slots than the last 1 slots of the consecutive M slots.

-if the layer 1 priority value of the data is equal to 0, or the cap value of the data = 1.

In the embodiments provided in the present disclosure, the method provided in the embodiments of the present disclosure is described from the angles of the terminal device and the network device, respectively.

Fig. 15 is a schematic structural diagram of a communication device 1 according to an embodiment of the disclosure. The communication device 1 shown in fig. 15 may include a transceiver module 11 and a processing module 12. The transceiver module may include a transmitting module and/or a receiving module, where the transmitting module is configured to implement a transmitting function, the receiving module is configured to implement a receiving function, and the transceiver module may implement the transmitting function and/or the receiving function.

The communication device 1 may be a terminal device, a device in a terminal device, or a device that can be used in cooperation with a terminal device. Alternatively, the communication device 1 may be a network device, a device in a network device, or a device that can be used in cooperation with a network device.

A communication apparatus 1, which is applied to data transmission of a sidelink of a plurality of consecutive slots, the apparatus being provided at a first terminal device side, the apparatus comprising:

the transceiver module 11 is configured to determine that the target symbol in the consecutive plurality of slots is used for transmitting the data of the sidelink when a specific condition is met, wherein the target symbol comprises a last symbol of other slots except the last slot in the consecutive plurality of slots.

In some embodiments, the apparatus further comprises a processing module 12:

a processing module 12 configured to determine whether the second terminal device uses a consecutive plurality of time slots of the same time slot length for data transmission as the first terminal device by listening to the first stage side link control information SCI or the second stage SCI of the second terminal device.

In some embodiments, the processing module 12 is configured to determine, according to the configuration of the resource pool, or the configuration of the bandwidth portion BWP, whether the second terminal device uses a consecutive plurality of time slots of the same time slot length for data transmission as the first terminal device.

In some embodiments, the specific condition includes at least one of:

In some embodiments, the transceiver module 11 is further configured to receive configuration information sent by the network side device, where the configuration information is used to indicate the first threshold or the second threshold.

In some embodiments, the specific condition includes at least one of:

The communication apparatus 1 is provided on the network device side:

the device comprises: a transceiver module 11.

And a transceiver module 11 configured to send configuration information to the first terminal device, where the configuration information is used to indicate a first threshold or a second threshold, where the first threshold is used for the first terminal device to perform data transmission of the sidelink by using a target symbol in a continuous plurality of time slots if the value meeting the layer 1 priority of the data to be sent is determined to be less than or equal to the first threshold, or the second threshold is used for the first terminal device to perform data transmission of the sidelink by using the target symbol in the continuous plurality of time slots if the value meeting the cap of the data to be sent is determined to be less than or equal to the first threshold, where the target symbol includes a last symbol in other time slots except the last time slot in the continuous plurality of time slots.

With respect to the communication apparatus 1 in the above-described embodiment, the specific manner in which the respective modules perform operations has been described in detail in the embodiment concerning the method, and will not be explained in detail here.

The communication device 1 provided in the above embodiments of the present disclosure achieves the same or similar advantages as the data transmission method provided in some of the above embodiments, and will not be described herein.

Referring to fig. 16, fig. 16 is a schematic structural diagram of another communication device 1000 according to an embodiment of the disclosure. The communication device 1000 may be a terminal device, a network device, a chip system, a processor, or the like that supports the terminal device to implement the above method, or a chip, a chip system, a processor, or the like that supports the network device to implement the above method. The communication device 1000 may be used to implement the method described in the above method embodiments, and reference may be made in particular to the description of the above method embodiments.

The communications device 1000 may include one or more processors 1001. The processor 1001 may be a general purpose processor or a special purpose processor, or the like. For example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication apparatuses (e.g., network side devices, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute computer programs, and process data of the computer programs.

Optionally, the communication device 1000 may further include one or more memories 1002, on which a computer program 1004 may be stored, where the memory 1002 executes the computer program 1004, so that the communication device 1000 performs the method described in the above method embodiments. Optionally, the memory 1002 may also store data. The communication device 1000 and the memory 1002 may be provided separately or may be integrated.

Optionally, the communication device 1000 may further comprise a transceiver 1005, an antenna 1006. The transceiver 1005 may be referred to as a transceiver unit, a transceiver circuit, or the like, for implementing a transceiver function. The transceiver 1005 may include a receiver, which may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function, and a transmitter; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing a transmitting function.

Optionally, one or more interface circuits 1007 may also be included in the communications apparatus 1000. The interface circuit 1007 is used to receive code instructions and transmit them to the processor 1001. The processor 1001 executes the code instructions to cause the communication device 1000 to perform the method described in the method embodiments described above.

The communication apparatus 1000 is a terminal device: the transceiver 1005 is configured to perform S21 in fig. 2; s41 in fig. 4; s51 in fig. 5; s62 in fig. 6; s72 in fig. 7; s81 in fig. 8S 91 in fig. 9; s101 in fig. 10; s111 in fig. 11; s121 in fig. 12; s131 in fig. 13; the processor 1001 is configured to execute S61 in fig. 6; s61 in fig. 7.

The communication apparatus 1000 is a network device: the transceiver 1005 is used to perform S141 in fig. 14.

In one implementation, a transceiver for implementing the receive and transmit functions may be included in the processor 1001. For example, the transceiver may be a transceiver circuit, or an interface circuit. The transceiver circuitry, interface or interface circuitry for implementing the receive and transmit functions may be separate or may be integrated. The transceiver circuit, interface or interface circuit may be used for reading and writing codes/data, or the transceiver circuit, interface or interface circuit may be used for transmitting or transferring signals.

In one implementation, the processor 1001 may store a computer program 1003, where the computer program 1003 runs on the processor 1001, and may cause the communication device 1000 to execute the method described in the above method embodiment. The computer program 1003 may be solidified in the processor 1001, in which case the processor 1001 may be implemented by hardware.

In one implementation, the communications apparatus 1000 can include circuitry that can implement the functions of transmitting or receiving or communicating in the foregoing method embodiments. The processors and transceivers described in this disclosure may be implemented on integrated circuits (integrated circuit, ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (application specific integrated circuit, ASIC), printed circuit boards (printed circuit board, PCB), electronic devices, and the like. The processor and transceiver may also be fabricated using a variety of IC process technologies such as complementary metal oxide semiconductor (complementary metal oxide semiconductor, CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The communication apparatus in the above embodiment description may be a terminal device or a network device, but the scope of the communication apparatus described in the present disclosure is not limited thereto, and the structure of the communication apparatus may not be limited by fig. 16. The communication means may be a stand-alone device or may be part of a larger device. For example, the communication device may be:

(1) A stand-alone integrated circuit IC, or chip, or a system-on-a-chip or subsystem;

(2) A set of one or more ICs, optionally including storage means for storing data, a computer program;

(3) An ASIC, such as a Modem (Modem);

(4) Modules that may be embedded within other devices;

(5) A receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network-side device, a cloud device, an artificial intelligent device, and the like;

(6) Others, and so on.

In the case where the communication device may be a chip or a chip system, please refer to fig. 17, which is a block diagram of a chip provided in an embodiment of the disclosure.

Chip 1100 includes processor 1101 and interface 1103. Wherein the number of processors 1101 may be one or more, and the number of interfaces 1103 may be a plurality.

For the case where the chip is used to implement the functions of the terminal device in the embodiments of the present disclosure:

an interface 1103 for receiving the code instruction and transmitting the code instruction to the processor.

A processor 1101 for executing code instructions to perform the data transmission method as described in some embodiments above.

For the case where the chip is used to implement the functions of the network device in the embodiments of the present disclosure:

Optionally, the chip 1100 further comprises a memory 1102, the memory 1102 being used for storing the necessary computer programs and data.

Those of skill in the art will further appreciate that the various illustrative logical blocks (illustrative logical block) and steps (step) described in connection with the embodiments of the disclosure may be implemented by electronic hardware, computer software, or combinations of both. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Those skilled in the art may implement the described functionality in varying ways for each particular application, but such implementation is not to be understood as beyond the scope of the embodiments of the present disclosure.

The embodiment of the present disclosure also provides a data transmission system, where the system includes the communication device as a terminal device and the communication device as a network device in the embodiment of fig. 15, or the system includes the communication device as a terminal device and the communication device as a network device in the embodiment of fig. 16.

The present disclosure also provides a readable storage medium having instructions stored thereon which, when executed by a computer, perform the functions of any of the method embodiments described above.

The present disclosure also provides a computer program product which, when executed by a computer, performs the functions of any of the method embodiments described above.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer programs. When the computer program is loaded and executed on a computer, the flow or functions described in accordance with the embodiments of the present disclosure 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 apparatus. The computer program may be stored in or transmitted from one computer readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means from one website, computer, server, or data center. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

Those of ordinary skill in the art will appreciate that: the various numbers of first, second, etc. referred to in this disclosure are merely for ease of description and are not intended to limit the scope of embodiments of this disclosure, nor to indicate sequencing.

At least one of the present disclosure may also be described as one or more, a plurality may be two, three, four or more, and the present disclosure is not limited. In the embodiment of the disclosure, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "a", "B", "C", and "D", and the technical features described by "first", "second", "third", "a", "B", "C", and "D" are not in sequence or in order of magnitude.

The words "if" and "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination", depending on the context.

The correspondence relationships shown in the tables in the present disclosure may be configured or predefined. The values of the information in each table are merely examples, and may be configured as other values, and the present disclosure is not limited thereto. In the case of the correspondence between the configuration information and each parameter, it is not necessarily required to configure all the correspondence shown in each table. For example, in the table in the present disclosure, the correspondence shown by some rows may not be configured. For another example, appropriate morphing adjustments, e.g., splitting, merging, etc., may be made based on the tables described above. The names of the parameters indicated in the tables may be other names which are understood by the communication device, and the values or expressions of the parameters may be other values or expressions which are understood by the communication device. When the tables are implemented, other data structures may be used, for example, an array, a queue, a container, a stack, a linear table, a pointer, a linked list, a tree, a graph, a structure, a class, a heap, a hash table, or a hash table.

Predefined in this disclosure may be understood as defining, predefining, storing, pre-negotiating, pre-configuring, curing, or pre-sintering.

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 solution. 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 disclosure.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A data transmission method applied to data transmission of a side-link sidelink of a plurality of consecutive time slots, the method being performed by a first terminal device, comprising:

and when a specific condition is met, determining to use a target symbol in a plurality of continuous time slots for performing the data transmission of the sidelink, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the plurality of continuous time slots.

2. The method of claim 1, wherein the particular condition comprises:

the sending bandwidth of the first terminal equipment occupies all Resource Blocks (RBs) of the whole resource pool, and is a first value based on the indication information of the resource pool configuration.

3. The method of claim 2, wherein the indication information is a first value that indicates that the resource pool occupies all RBs in a set of RBs.

4. The method of claim 1, wherein the particular condition comprises:

the sending bandwidth of the first terminal equipment is part of RBs in an RB set, and second terminal equipment which is in frequency division multiplexing with the first terminal equipment and uses a plurality of continuous time slots with the same time slot length for data transmission exists in the RB set.

5. The method of claim 4, wherein the first terminal device and the second terminal device begin transmitting data using consecutive time slots at the same time location of one time slot.

6. The method of claim 4, wherein the method further comprises:

by monitoring the first stage side link control information SCI or the second stage SCI of the second terminal device, it is determined whether the second terminal device uses a continuous plurality of time slots of the same time slot length for data transmission as the first terminal device.

7. The method of claim 4, wherein the method further comprises:

and determining whether the second terminal equipment and the first terminal equipment use a plurality of continuous time slots with the same time slot length for data transmission according to the configuration of a resource pool or the configuration of a bandwidth part BWP.

8. The method of claim 1, wherein the particular condition comprises:

the starting symbol of the continuous multiple time slot transmission is the second starting symbol in one time slot.

9. The method of claim 1, wherein the particular condition comprises at least one of:

The value of the layer 1 priority of the data to be sent of the first terminal equipment is smaller than a first threshold value;

the value of the layer 1 priority of the data to be sent of the first terminal equipment is equal to a first threshold value;

the value of the channel access priority level CAPC of the data to be sent of the first terminal device is smaller than a second threshold value;

the value of the CAPC of the data to be sent of the first terminal device is equal to a second threshold value.

10. The method of claim 9, wherein the method further comprises:

and receiving configuration information sent by network side equipment, wherein the configuration information is used for indicating the first threshold value or the second threshold value.

11. The method of claim 1, wherein the particular condition comprises at least one of:

the value of the layer 1 priority of the data to be sent of the first terminal equipment is equal to a first specific value;

the CAPC value of the data to be transmitted of the first terminal device is equal to a second specific value.

12. The method of claim 11, wherein the first particular value is 0 or the second particular value is 1.

13. A method of data transmission, the method performed by a network device, comprising:

Transmitting configuration information to a first terminal device, wherein the configuration information is used for indicating a first threshold or a second threshold, the first threshold is used for transmitting data of a sidelink by using a target symbol in a plurality of continuous time slots under the condition that the first terminal device determines that the value meeting the priority of layer 1 of data to be transmitted is smaller than or equal to the first threshold,

or the second threshold is used for the first terminal equipment to perform the data transmission of the sidelink by using the target symbol in a plurality of continuous time slots under the condition that the value of the CAPC meeting the data to be transmitted is less than or equal to the second threshold,

wherein the target symbol includes a last symbol of other slots except for the last slot among the consecutive slots.

14. A communication apparatus, characterized in that it is applied to data transmission of a sidelink of a plurality of consecutive slots, said apparatus being provided at a first terminal device side, said apparatus comprising:

and the receiving and transmitting module is configured to determine to use a target symbol in a plurality of continuous time slots for transmitting data of the sidelink when a specific condition is met, wherein the target symbol comprises the last symbol of other time slots except the last time slot in the plurality of continuous time slots.

15. A communication apparatus, the apparatus being provided on a network device side, the apparatus comprising:

a transceiver module configured to send configuration information to a first terminal device, where the configuration information is used to indicate a first threshold or a second threshold, where the first threshold is used for the first terminal device to perform data transmission of a sidelink by using a target symbol in a plurality of consecutive time slots if it is determined that a value satisfying a layer 1 priority of data to be sent is less than or equal to the first threshold,

16. A communication device, characterized in that the device comprises a processor and a memory, in which a computer program is stored, the processor executing the computer program stored in the memory to cause the device to perform the method according to any one of claims 1 to 12 or the processor executing the computer program stored in the memory to cause the device to perform the method according to claim 13.

17. A communication device, comprising: a processor and interface circuit;

the interface circuit is used for receiving code instructions and transmitting the code instructions to the processor;

the processor for executing the code instructions to perform the method of any one of claims 1 to 12 or for executing the code instructions to perform the method of claim 13.

18. A computer readable storage medium storing instructions which, when executed, cause the method of any one of claims 1 to 12 to be implemented, or which, when executed, cause the method of claim 13 to be implemented.