Method and device for partial sensing of sidelink resources

Abstract

The present disclosure discloses a method and device for partial sensing of sidelink resources, including: a terminal determining at least one set of partial sensing configuration parameters from at least two sets of different partial sensing configuration parameters; and the terminal performing partial sensing using the at least one set of partial sensing configuration parameters.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This disclosure claims priority to a Chinese patent application with application number 202110356871.7, filed in China on April 1, 2021, the entire contents of which are incorporated herein by reference.

[0002] The present disclosure relates to the mobile communication technology field, and in particular to a method and device for partial sensing of sidelink resources. [Background technology]

[0003] In a 5th Generation Mobile Communication Technology (5G) New Radio (NR) intelligent network vehicle (V2X) system, communication is performed between terminals using a sidelink, and the time-frequency resources used for data communication and related standards support two types of resource allocation modes for scheduling them. The first type is a Mode 1 resource allocation mode, in which a base station uniformly schedules the time-frequency resources required for terminal communication. The second type is a Mode 2 resource allocation mode, in which a terminal independently selects the time-frequency resources required for communication when there is no participation of a base station.

[0004] Here, in the Mode 2 resource allocation mode, since there is no unified scheduling by the base station, a terminal / user equipment (UE) determines the resource occupancy status of other UEs through a resource sensing mechanism, and performs resource selection based on the resource sensing result, thereby reducing the collision probability and enhancing the robustness of transmission.

[0005] The V2X standard of the 4th Generation Mobile Communication Technology (4G) Long Time Evolution (LTE) supports a partial sensing mechanism for the energy saving demand of power usage effectiveness (PUE), and the terminal can sense intermittently to achieve the purpose of power saving. Currently, partial sensing technology is only applied to LTE, and PUE applies partial sensing operation based on energy saving demand. The V2X standard of NR does not support partial sensing. In addition, the current NR standard only supports continuous sensing, has no energy saving sensing mechanism for PUE, and only considers periodic transmission for partial sensing operation in LTE, has no re-evaluation mechanism, and has only one configuration of partial sensing operation for one service transmission, which cannot be flexibly configured according to the effects of periodic and non-periodic transmission. Summary of the Invention [Problem to be solved by the invention]

[0006] At least one embodiment of the present disclosure provides a method and device for partial sensing of sidelink resources that can support different partial sensing operation configuration parameters and improve the flexibility of partial sensing operation. [Means for solving the problem]

[0007] According to one aspect of the present disclosure, at least one embodiment provides a method for partial sensing of sidelink resources, the method including: The terminal determines at least one set of partial sensing configuration parameters from at least two different sets of partial sensing configuration parameters; The terminal performs partial sensing using the at least one set of partial sensing configuration parameters.

[0008] Optionally, the partial sensing configuration parameters of each set have different sensing densities.

[0009] Optionally, the partial sensing configuration parameters of each set include a minimum number of candidate resources and a bit sequence of candidate sensing intervals.

[0010] Optionally, after performing partial sensing using the at least one set of partial sensing configuration parameters, the method further includes performing an initial transmission and / or retransmission of data based on the sensing result obtained by the partial sensing.

[0011] Optionally, the at least one set of partial sensing configuration parameters includes a first set of configuration parameters and a second set of configuration parameters, and the terminal performing partial sensing using the at least one set of partial sensing configuration parameters includes the terminal performing partial sensing using the first set of configuration parameters when in the active state DRX on duration of discontinuous reception DRX, and performing partial sensing using the second set of configuration parameters when in the inactive state DRX inactive duration of DRX.

[0012] Optionally, the terminal performing partial sensing using the first set of configuration parameters when in the active state DRX on duration of discontinuous reception DRX, and performing partial sensing using the second set of configuration parameters when in the inactive state DRX inactive duration of DRX, specifically means that the terminal performs partial sensing using the first set of configuration parameters when in the DRX on duration of DRX within the period from the sensing start time to the resource selection time, and performs partial sensing using the second set of configuration parameters when in the DRX inactive duration of DRX, or The terminal performs partial sensing using the first set of configuration parameters when in a DRX on duration of DRX during a period from a sensing start time to a data initial transmission time, and performs partial sensing using the second set of configuration parameters when in a DRX inactive duration of DRX; Or, The terminal performs partial sensing using the first set of configuration parameters when in a DRX on duration of DRX within a period from a sensing start time to a last data retransmission time, and performs partial sensing using the second set of configuration parameters when in a DRX inactive duration of DRX.

[0013] Optionally, the at least one set of partial sensing configuration parameters includes a first set of configuration parameters and a second set of configuration parameters, and the terminal performing partial sensing using the at least one set of partial sensing configuration parameters includes: The terminal includes performing partial sensing using the first set of configuration parameters and the second set of configuration parameters within a period from a sensing start time to a data first transmission time.

[0014] The selective partial sensing by the terminal using the first set of configuration parameters and the second set of configuration parameters during a period from a sensing start time to a data initial transmission time can be specifically The terminal performs partial sensing using the first set of configuration parameters during a period from a sensing start time to a resource selection time, and performs partial sensing using the second set of configuration parameters during a period from a resource selection time to a data initial transmission time; Or, The terminal performs partial sensing using the first set of configuration parameters within a period from a sensing start time to a first time, and performs partial sensing using the second set of configuration parameters within a period from the first time to a first data transmission time, the first time being located before the first data transmission time and the interval between the first time and the first data transmission time being a first preset time length f1.

[0015] Optionally, the at least one set of partial sensing configuration parameters includes a first set of configuration parameters and a second set of configuration parameters, and the terminal performing partial sensing using the at least one set of partial sensing configuration parameters includes: The terminal performs partial sensing using the first set of configuration parameters and the second set of configuration parameters within a period from a sensing start time to a data retransmission time.

[0016] Optionally, the terminal performs partial sensing using the first set of configuration parameters and the second set of configuration parameters within a period from a sensing start time to a data retransmission time, specifically, the terminal performs partial sensing using the first set of configuration parameters during a period from a sensing start time to a resource selection time, and performs partial sensing using the second set of configuration parameters during a period from a resource selection time to a data retransmission time; Or, The terminal performs partial sensing using the first set of configuration parameters within a period from a sensing start time to a second time, and performs partial sensing using the second set of configuration parameters within a period from the second time to a last data retransmission time, the second time being located before a data first transmission time and an interval between the second time and the data first transmission time being a second preset time length f2.

[0017] Optionally, the at least one set of partial sensing configuration parameters includes only a first set of configuration parameters or only a second set of configuration parameters, and the terminal performing partial sensing using the at least one set of partial sensing configuration parameters includes: The terminal includes performing partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a data initial transmission time.

[0018] The selective partial sensing by the terminal using the first set of configuration parameters or the second set of configuration parameters during a period from a sensing start time to a data initial transmission time can be specifically The terminal performs partial sensing using the first set of configuration parameters during a period from a sensing start time to a resource selection time, and continues to perform partial sensing using the first set of configuration parameters during a period from a resource selection time to a data initial transmission time; Or, the terminal performs partial sensing using the second set of configuration parameters during a period from a sensing start time to a resource selection time, and continues to perform partial sensing using the second set of configuration parameters during a period from a resource selection time to a data initial transmission time; Or, The terminal performs partial sensing using the first set of configuration parameters during a period from a sensing start time to a third time, and continues to perform partial sensing using the first set of configuration parameters during a period from the third time to a first data transmission time, the third time being located before the first data transmission time and an interval between the third time and the first data transmission time is a third preset time length f3; Or, The terminal performs partial sensing using the second set of configuration parameters within a period from a sensing start time to a third time, and continues to perform partial sensing using the second set of configuration parameters within a period from the third time to a first data transmission time, the third time being located before the first data transmission time and the interval between the third time and the first data transmission time being a third preset time length f3.

[0019] Optionally, the at least one set of partial sensing configuration parameters includes only a first set of configuration parameters or only a second set of configuration parameters, and the terminal performing partial sensing using the at least one set of partial sensing configuration parameters includes: The terminal includes performing partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a data retransmission time.

[0020] The selective partial sensing by the terminal using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a data retransmission time can be specifically the terminal performs partial sensing using the first set of configuration parameters during a period from a sensing start time to a resource selection time, and continues to perform partial sensing using the first set of configuration parameters during a period from a resource selection time to a last data retransmission time; Or, the terminal performs partial sensing using the second set of configuration parameters during a period from a sensing start time to a resource selection time, and continues to perform partial sensing using the second set of configuration parameters during a period from a resource selection time to a last data retransmission time; Or, Within the period from the sensing start time to the fourth time, the terminal performs partial sensing using the first set of configuration parameters, and within the period from the fourth time to the last data retransmission time, continues to perform partial sensing using the first set of configuration parameters, where the fourth time is located before the first data transmission time and the interval between the fourth time and the first data transmission time is the fourth preset time length f4. Or, Within the period from the sensing start time to the fourth time, the terminal performs partial sensing using the second set of configuration parameters, and within the period from the fourth time to the last data retransmission time, continues to perform partial sensing using the second set of configuration parameters, where the fourth time is located before the first data transmission time and the interval between the fourth time and the first data transmission time is the fourth preset time length f4.

[0021] Optionally, the sensing density of the first set of configuration parameters is lower than that of the second set of configuration parameters.

[0022] According to another aspect of the present disclosure, at least one embodiment provides a terminal including a memory, a transceiver, and a processor. The memory is configured to store a computer program. The transceiver is configured to transmit and receive data under the control of the processor. The processor reads out the computer program in the memory. Determine at least one set of partial sensing configuration parameters from at least two sets of different partial sensing configuration parameters. Perform partial sensing using the at least one set of partial sensing configuration parameters. The processor is configured to execute the operations.

[0023] Optionally, each set of partial sensing configuration parameters has a different sensing density.

[0024] Optionally, each set of partial sensing configuration parameters includes a minimum number of candidate resources and a bit sequence of a candidate sensing interval.

[0025] Optionally, the processor is further adapted to read a computer program in the memory to: The system is configured to perform the operations of: performing partial sensing using the at least one set of partial sensing configuration parameters, and then performing initial transmission and / or retransmission of data based on sensing results obtained by partial sensing.

[0026] Optionally, the at least one set of partial sensing configuration parameters includes a first set of configuration parameters and a second set of configuration parameters, and the processor is further configured to read a computer program in the memory to: The terminal is configured to perform an operation of performing partial sensing using the first set of configuration parameters when in a discontinuous reception DRX activation state DRX on duration, and performing partial sensing using the second set of configuration parameters when in a DRX inactivation state DRX inactive duration.

[0027] Optionally, the processor is further adapted to read a computer program in the memory to: performing partial sensing using the first set of configuration parameters when in a DRX on duration of DRX during a period from a sensing start time to a resource selection time, and performing partial sensing using the second set of configuration parameters when in a DRX inactive duration of DRX; Or, performing partial sensing using the first set of configuration parameters when in a DRX on duration of DRX during a period from a sensing start time to a data first transmission time, and performing partial sensing using the second set of configuration parameters when in a DRX inactive duration of DRX; Or, The device is configured to perform the operations of performing partial sensing using the first set of configuration parameters when in a DRX on duration of DRX, and performing partial sensing using the second set of configuration parameters when in a DRX inactive duration of DRX, within a period from a sensing start time to a last data retransmission time.

[0028] Optionally, the at least one set of partial sensing configuration parameters includes a first set of configuration parameters and a second set of configuration parameters, and the processor is further configured to read a computer program in the memory to: performing partial sensing using the first set of configuration parameters and the second set of configuration parameters within a period from a sensing start time to a data first transmission time.

[0029] Optionally, the processor is further adapted to read a computer program in the memory to: performing partial sensing using the first set of configuration parameters during a period from a sensing start time to a resource selection time, and performing partial sensing using the second set of configuration parameters during a period from a resource selection time to a data first transmission time; Or, The device is configured to perform the operations of performing partial sensing using the first set of configuration parameters within a period from a sensing start time to a first time, and performing partial sensing using the second set of configuration parameters within a period from the first time to a first data transmission time, wherein the first time is located before the first data transmission time and an interval between the first time and the first data transmission time is a first preset time length f1.

[0030] Optionally, the at least one set of partial sensing configuration parameters includes a first set of configuration parameters and a second set of configuration parameters, and the processor is further configured to read a computer program in the memory to: performing partial sensing using the first set of configuration parameters and the second set of configuration parameters within a period from a sensing start time to a data retransmission time.

[0031] Optionally, the processor is further adapted to read a computer program in the memory to: performing partial sensing using the first set of configuration parameters within a period from a sensing start time to a resource selection time, and performing partial sensing using the second set of configuration parameters within a period from a resource selection time to a data retransmission time; Or, The device is configured to perform the operations of performing partial sensing using the first set of configuration parameters within a period from a sensing start time to a second time, and performing partial sensing using the second set of configuration parameters within a period from the second time to a last data retransmission time, the second time being located before a data first transmission time and an interval between the second time and the data first transmission time being a second preset time length f2.

[0032] Optionally, the at least one set of partial sensing configuration parameters includes only a first set of configuration parameters or only a second set of configuration parameters, and the processor is further configured to read a computer program in the memory to: performing partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a data first transmission time.

[0033] Optionally, the processor is further adapted to read a computer program in the memory to: performing partial sensing using the first set of configuration parameters or the second set of configuration parameters during a period from a sensing start time to a resource selection time, and continuing to perform partial sensing using the first set of configuration parameters or the second set of configuration parameters during a period from a resource selection time to a data initial transmission time; Or, The device is configured to perform the following operations: performing partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a third time, and continuing to perform partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from the third time to a first data transmission time, wherein the third time is located before the first data transmission time and the interval between the third time and the first data transmission time is a third preset time length f3.

[0034] Optionally, the at least one set of partial sensing configuration parameters includes only a first set of configuration parameters or only a second set of configuration parameters, and the processor is further configured to read a computer program in the memory to: performing partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a data retransmission time.

[0035] Optionally, the processor is further adapted to read a computer program in the memory to: performing partial sensing using the first set of configuration parameters or the second set of configuration parameters during a period from a sensing start time to a resource selection time, and subsequently performing partial sensing using the first set of configuration parameters or the second set of configuration parameters during a period from a resource selection time to a last data retransmission time; Or, The device is configured to perform the operations of performing partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a fourth time, and continuing to perform partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from the fourth time to a last data retransmission time, wherein the fourth time is located before the first data transmission time and the interval between the fourth time and the first data transmission time is a fourth preset time length f4.

[0036] Selectably, a sensing density of the first set of configuration parameters is lower than a sensing density of the second set of configuration parameters.

[0037] According to another aspect of the present disclosure, at least one embodiment provides a terminal, the terminal comprising: a determining unit configured to determine at least one set of partial sensing configuration parameters from at least two sets of different partial sensing configuration parameters; a sensing unit configured to perform partial sensing using the at least one set of partial sensing configuration parameters.

[0038] Selectably, each set of partial sensing configuration parameters has a different sensing density.

[0039] Optionally, each set of partial sensing configuration parameters includes a minimum number of candidate resources and a bit sequence of a candidate sensing interval.

[0040] Optionally, the terminal further comprises: and a transmission unit configured to perform partial sensing using the at least one set of partial sensing configuration parameters, and then perform initial transmission and / or retransmission of data based on sensing results obtained by partial sensing.

[0041] Optionally, the at least one set of partial sensing configuration parameters includes a first set of configuration parameters and a second set of configuration parameters, and the sensing unit further comprises: The mobile station is configured to perform partial sensing using the first set of configuration parameters when in a discontinuous reception DRX activation state DRX on duration, and to perform partial sensing using the second set of configuration parameters when in a DRX inactivation state DRX inactive duration.

[0042] Optionally, the sensing unit further comprises: performing partial sensing using the first set of configuration parameters when in a DRX on duration of DRX during a period from a sensing start time to a resource selection time, and performing partial sensing using the second set of configuration parameters when in a DRX inactive duration of DRX; Or, performing partial sensing using the first set of configuration parameters when in a DRX on duration of DRX during a period from a sensing start time to a data first transmission time, and performing partial sensing using the second set of configuration parameters when in a DRX inactive duration of DRX; Or, The device is configured to perform partial sensing using the first set of configuration parameters when in a DRX on duration of DRX, and to perform partial sensing using the second set of configuration parameters when in a DRX inactive duration of DRX, within a period from a sensing start time to a last data retransmission time.

[0043] Optionally, the at least one set of partial sensing configuration parameters includes a first set of configuration parameters and a second set of configuration parameters, and the sensing unit further comprises: performing partial sensing using the first set of configuration parameters and the second set of configuration parameters within a period from a sensing start time to a data first transmission time.

[0044] Optionally, the sensing unit further comprises: performing partial sensing using the first set of configuration parameters during a period from a sensing start time to a resource selection time, and performing partial sensing using the second set of configuration parameters during a period from a resource selection time to a data first transmission time; Or, The device is configured to perform partial sensing using the first set of configuration parameters within a period from a sensing start time to a first time, and to perform partial sensing using the second set of configuration parameters within a period from the first time to a first data transmission time, the first time being located before the first data transmission time and the interval between the first time and the first data transmission time being a first preset time length f1.

[0045] Optionally, the at least one set of partial sensing configuration parameters includes a first set of configuration parameters and a second set of configuration parameters, and the sensing unit further comprises: performing partial sensing using the first set of configuration parameters and the second set of configuration parameters within a period from a sensing start time to a data retransmission time.

[0046] Optionally, the sensing unit further comprises: performing partial sensing using the first set of configuration parameters during a period from a sensing start time to a resource selection time, and performing partial sensing using the second set of configuration parameters during a period from a resource selection time to a data retransmission time; Or, The device is configured to perform partial sensing using the first set of configuration parameters within a period from a sensing start time to a second time, and to perform partial sensing using the second set of configuration parameters within a period from the second time to a last data retransmission time, the second time being located before a data first transmission time and having an interval between the second time and the data first transmission time being a second preset time length f2.

[0047] Optionally, the at least one partial set of sensing configuration parameters includes only a first set of configuration parameters or only a second set of configuration parameters, and the sensing unit further comprises: performing partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a data first transmission time.

[0048] Optionally, the sensing unit further comprises: performing partial sensing using the first set of configuration parameters or the second set of configuration parameters during a period from a sensing start time to a resource selection time, and continuing to perform partial sensing using the first set of configuration parameters or the second set of configuration parameters during a period from a resource selection time to a data initial transmission time; Or, The device is configured to perform partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a third time, and to continue performing partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from the third time to a first data transmission time, wherein the third time is located before the first data transmission time and the interval between the third time and the first data transmission time is a third preset time length f3.

[0049] Optionally, the at least one partial set of sensing configuration parameters includes only a first set of configuration parameters or only a second set of configuration parameters, and the sensing unit further comprises: performing partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a data retransmission time.

[0050] Optionally, the sensing unit further comprises: performing partial sensing using the first set of configuration parameters or the second set of configuration parameters during a period from a sensing start time to a resource selection time, and subsequently performing partial sensing using the first set of configuration parameters or the second set of configuration parameters during a period from a resource selection time to a last data retransmission time; Or, The system is configured to perform partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a fourth time, and to continue performing partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from the fourth time to a last data retransmission time, wherein the fourth time is located before the first data transmission time and the interval between the fourth time and the first data transmission time is a fourth preset time length f4.

[0051] Selectably, a sensing density of the first set of configuration parameters is lower than a sensing density of the second set of configuration parameters.

[0052] According to another aspect of the present disclosure, at least one embodiment provides a processor-readable storage medium having a computer program stored thereon, the computer program being adapted to cause the processor to execute the method described above. Effect of the Invention

[0053] Compared with the related art, the method and device for partial sensing of sidelink resources according to the embodiment of the present disclosure can set multiple sets of partial sensing configuration parameters for one transmission resource pool, and thus, the terminal can perform subsequent partial sensing operations for a certain period of time using different configuration parameters based on the difference in the impact of periodic transmission and aperiodic transmission on resource selection reliability at different times, for example, during the period of monitoring periodic transmission, a low-density partial sensing operation can be performed using a first set of partial sensing configuration parameters to ensure energy saving effect, and during the period of monitoring aperiodic transmission, a short-term high-density partial sensing operation can be performed using a second set of partial sensing configuration parameters to ensure reliability of sensing result and reduce transmission collision. In addition, when power saving is performed using DRX, the embodiment of the present disclosure can perform partial sensing using two sets of configuration parameters, and when achieving power saving effect, resource collision can be further appropriately reduced. [Brief description of the drawings]

[0054] [Figure 1] FIG. 1 is a schematic diagram of one related art partial sensing; [Diagram 2] FIG. 1 is a schematic diagram of a related art resource allocation re-evaluation; [Diagram 3] FIG. 1 is a flow diagram of a method for partial sensing of sidelink resources according to an embodiment of the present disclosure; [Figure 4] 1A-1C are multiple example diagrams of partial sensing according to an embodiment of the present disclosure. [Diagram 5] 1A-1C are multiple example diagrams of partial sensing according to an embodiment of the present disclosure. [Figure 6] 1A-1C are multiple example diagrams of partial sensing according to an embodiment of the present disclosure. [Figure 7] 1A-1C are multiple example diagrams of partial sensing according to an embodiment of the present disclosure. [Figure 8] 1A-1C are multiple example diagrams of partial sensing according to an embodiment of the present disclosure. [Figure 9] 1A-1C are multiple example diagrams of partial sensing according to an embodiment of the present disclosure. [Figure 10] 1A-1C are multiple example diagrams of partial sensing according to an embodiment of the present disclosure. [Figure 11] 1A-1C are multiple example diagrams of partial sensing according to an embodiment of the present disclosure. [Figure 12] 1A-1C are multiple example diagrams of partial sensing according to an embodiment of the present disclosure. [Figure 13] 1A-1C are multiple example diagrams of partial sensing according to an embodiment of the present disclosure. [Figure 14] 1A-1C are multiple example diagrams of partial sensing according to an embodiment of the present disclosure. [Figure 15] FIG. 2 is a structural schematic diagram of a terminal according to an embodiment of the present disclosure; [Figure 16] FIG. 2 is another structural schematic diagram of a terminal according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0055] Various other benefits and advantages will become apparent to those skilled in the art upon reading the following detailed description of the preferred embodiments. The drawings are used only to illustrate the preferred embodiments and are not to be considered as limitations of the present disclosure. Also, the same reference numerals refer to the same parts throughout the drawings.

[0056] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although the drawings show exemplary embodiments of the present disclosure, it should be understood that the present disclosure should not be limited by the embodiments described herein, but may be implemented in various forms. On the contrary, these embodiments are provided to enable a more complete understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0057] The terms "first", "second", and the like in the specification and claims of the present disclosure are not used to describe a particular order or sequence, but are used to distinguish between similar objects. It should be understood that the data so used may be appropriately exchanged so that the embodiments of the present disclosure described herein are performed, for example, in an order other than that shown or described herein. Furthermore, the terms "comprise" and "have" and any variations thereof are intended to be non-exclusive, for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units expressly recited, but may include other steps or units not expressly recited or inherent to the process, method, product, or apparatus. Additionally, "and / or" as used in the specification and claims means at least one of the connected objects.

[0058] The techniques described herein are not limited to NR systems and Long Time Evolution (LTE) / LTE-Advanced (LTE-A) systems, and may also be used in various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system may implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), etc. UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variations. A TDMA system may implement radio technologies such as Global System for Mobile Communication (GSM). An OFDMA system may implement radio technologies such as UltraMobile Broadband (UMB), Evolution-UTRA (E-UTRA), IEEE 802.21 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS).LTE and more advanced LTE (e.g., LTE-A) are newer versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP®). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein may be used for both the systems and radio technologies mentioned above, as well as other systems and radio technologies. However, the following description describes an NR system for illustrative purposes, and most of the following description uses NR terminology, although the techniques may be applied to applications other than NR system applications.

[0059] The following description provides examples rather than limitations on the scope, applicability, or configuration of the claimed invention. The functions and configurations of the elements discussed may be modified without departing from the spirit and scope of the present disclosure. Various examples may omit, substitute, or add various provisions or components as appropriate. For example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

[0060] To facilitate understanding of this disclosure, some concepts that may be relevant to the present disclosure will be briefly described.

[0061] partial sensing The basic principle of partial sensing is that the terminal periodically senses a preselected resource set and finally selects an available resource from the resource set. Specifically, the terminal itself determines a candidate reserved resource set consisting of at least Y subframes, and the physical layer detects the sensing period P stepThen, the upper layer sets a candidate sensing interval sequence for the physical layer, i.e., a sequence of 0s and 1s, whose length is 10 bits, where each bit corresponds to one sensing period. If the value corresponding to a bit in the sequence is 1, the terminal selects k×P step , eliminate unavailable resources, and finally select an available subframe from Y subframes, where k is an index value corresponding to the current bit of the sequence. Figure 1 shows a schematic diagram of partial sensing, where a rectangular box filled with small circular dots indicates a sensing period corresponding to a bit in the sequence whose value is 1, and a dashed rectangular box indicates a sensing period corresponding to a bit in the sequence whose value is 0.

[0062] In sidelink communication, LTE only includes periodic transmission, and two variables, a resource reservation interval and a sensing period, are set in the resource pool, and the terminal obtains the transmission period by multiplying the two variables, and performs partial sensing using one variable, a sensing period. In NR, periodic transmission and non-periodic transmission are included, and a variable, a resource reservation period, is set in the resource pool, and since the related standard only supports continuous sensing, there is no variable, a sensing period, and the terminal performs periodic transmission of the first retransmission of the service through the resource reservation period, and the terminal does not use the variable when performing non-periodic transmission, and performs only one first retransmission operation.

[0063] In the related NR standard, for the mode 2 resource allocation re-evaluation mechanism, the terminal determines whether there are any reserved resources transmitted by other terminals that collide with the resource selected at time n during the period based on the continuous sensing result between time m and time n when the service arrives and selects the resource at time m-T3 (m is the transmission time of the first transmission resource, and T3 is the transmission processing delay), eliminates the colliding resources, and reselects them. Figure 2 shows a schematic diagram of one re-evaluation.

[0064] The discontinuous reception (DRX) mechanism in the related NR mainly operates to appropriately reduce the monitoring of the physical downlink control channel (PDCCH) and to achieve the purpose of power saving by receiving the PDCCH in the active state (DRX on duration) and not receiving the PDCCH in the inactive state (DRX inactive duration). Sidelink may introduce DRX into the power saving mechanism in a subsequent version.

[0065] As described above, in the related NR standard, a re-evaluation operation is performed only before the first transmission, and a re-evaluation operation is not performed before a re-transmission, and the results obtained by continuous sensing are used for the re-evaluation part. Therefore, if the partial sensing operation in the LTE standard is applied to the sensing part of the re-evaluation operation in the NR standard for energy saving, the reliability of sensing for aperiodic transmission may be reduced.

[0066] At present, the NR V2X standard does not support partial sensing. A partial sensing mechanism is introduced in the NR V2X system for energy saving, and the same configuration method in LTE is adopted. That is, when one set of partial sensing configuration parameters is configured in one transmission resource pool, the terminal will use the same set of partial sensing configurations in the partial sensing process by one or multiple service transmissions. However, at different times, the impact of periodic transmission and non-periodic transmission on the resource selection reliability is different, and the periodic transmission of other terminals can be sensed more effectively before one transmission period of the resource selection trigger, and the sensing density set for the purpose of energy saving can be lower. Within one transmission period before and after the resource selection trigger, before the first service transmission, the resource selection may be affected by the retransmission of non-periodic transmission by other terminals. In this case, if the sensing is performed with the same low-density sensing configuration as before, the non-periodic services that can be sensed are very limited, and the reliability of the selected resources or the re-evaluation result is reduced.

[0067] In an embodiment of the present disclosure, a method for partial sensing is provided that can support different partial sensing operation configuration parameters, thereby improving the flexibility of partial sensing operation. For example, different partial sensing configuration parameters can be used according to different times. Specifically, in an embodiment of the present disclosure, multiple sets of partial sensing configuration parameters can be set based on high or low sensing density, and the terminal can determine to use one or multiple sets of partial sensing configuration parameters based on implementation or (pre)configuration, thereby selecting appropriate partial sensing configuration parameters as needed, which is beneficial to terminal energy saving and can improve the robustness of partial sensing.

[0068] As shown in FIG. 3, the method for partial sensing of sidelink resources according to an embodiment of the present disclosure is performed by a terminal, and specifically includes steps 31 to 32.

[0069] In step 31, the terminal determines at least one set of partial sensing configuration parameters from at least two sets of different partial sensing configuration parameters.

[0070] Here, the terminal side pre-obtains at least two sets of partial sensing configuration parameters set in one transmission resource pool, and each set of partial sensing configuration parameters has different parameters, for example, each set of partial sensing configuration parameters has a different sensing density. Each set of partial sensing configuration parameters generally includes a minimum number of candidate resources and a bit sequence of candidate sensing intervals. The bit sequence generally has a certain preset length, for example 10 bits, each bit corresponding to one sensing period, and k×P step represents the time when the available subframe is detected, the unavailable resource is eliminated, and finally, an available subframe is selected from Y subframes, where k is an index value corresponding to the bit bit, and P step is the sensing period, and Y is the minimum number of candidate resources.

[0071] In addition, in an embodiment of the present disclosure, the at least two sets of partial sensing configuration parameters can be stored locally in the terminal in advance, or the terminal can receive setting information transmitted from the network and obtain the at least two sets of partial sensing configuration parameters.

[0072] In step 32, the terminal performs partial sensing using the at least one set of partial sensing configuration parameters.

[0073] Here, the terminal performs partial sensing of sidelink resources according to the partial sensing configuration parameters determined in step 31. For specific sensing means, reference may be made to the related art, and description thereof will be omitted in the embodiments of the present disclosure.

[0074] Through the above steps, in the embodiment of the present disclosure, multiple sets of partial sensing configuration parameters can be provided, and the terminal can be supported to sense using different partial sensing operation configuration parameters, for example, different partial sensing configuration parameters can be used based on different times, thereby improving the flexibility of partial sensing operation.

[0075] After the above step 32, the terminal further performs initial transmission and / or retransmission of data based on the sensing result obtained by partial sensing, where the retransmission may include one or more retransmissions corresponding to one or more retransmission resources respectively.

[0076] As one embodiment, in the embodiment of the present disclosure, the at least two sets of partial sensing configuration parameters are set based on the high or low sensing density. In the above step 31, the at least one set of partial sensing configuration parameters determined by the terminal are two sets of partial sensing configuration parameters, which are a first set of configuration parameters and a second set of configuration parameters, respectively. Here, the sensing densities of the first set of configuration parameters and the second set of configuration parameters are different. Here, it is assumed that the sensing density of the first set of configuration parameters is smaller than the sensing density of the second set of configuration parameters. That is, it is assumed that the number of bits with a value of 1 in the bit sequence of the candidate sensing interval of the first set of configuration parameters is smaller than the number of bits with a value of 1 in the bit sequence of the candidate sensing interval of the second set of configuration parameters. In this way, in the above step 32, the terminal performs partial sensing using the first set of configuration parameters and the second set of configuration parameters. Specifically, the following 1) to 3) can be realized.

[0077] 1) The terminal performs partial sensing using the first set of configuration parameters when in a DRX on duration of DRX, and performs partial sensing using the second set of configuration parameters when in a DRX inactive duration of DRX, i.e., the terminal performs partial sensing using different configuration parameters in different DRX states, and the configuration parameters corresponding to each DRX state are different.

[0078] For example, the terminal performs partial sensing using the first set of configuration parameters when in the DRX on duration of DRX within the period from the sensing start time to the resource selection time, and performs partial sensing using the second set of configuration parameters when in the DRX inactive duration of DRX.

[0079] Also, for example, the terminal performs partial sensing using the first set of configuration parameters when in the DRX on duration of DRX within the period from the sensing start time to the first data transmission time, and performs partial sensing using the second set of configuration parameters when in the DRX inactive duration of DRX.

[0080] Further, for example, the terminal performs partial sensing using the first set of configuration parameters when in the DRX on duration of DRX within the period from the sensing start time to the last data retransmission time, and performs partial sensing using the second set of configuration parameters when in the DRX inactive duration of DRX.

[0081] 2) The terminal performs partial sensing using the first set of configuration parameters and the second set of configuration parameters during a period from a sensing start time to a data first transmission time.

[0082] For example, the terminal performs partial sensing using the first set of configuration parameters within a period from a sensing start time to a resource selection time, and performs partial sensing using the second set of configuration parameters within a period from a resource selection time to a first data transmission time.

[0083] Also, for example, the terminal performs partial sensing using the first set of configuration parameters during a period from a sensing start time to a first time, and performs partial sensing using the second set of configuration parameters during a period from the first time to a first data transmission time, where the first time is located before the first data transmission time and the interval between the first time and the first data transmission time is a first preset time length f1. Considering the characteristics of current periodic transmission and non-periodic transmission, the first preset time length f1 can be 31 slots.

[0084] 3) The terminal performs partial sensing using the first set of configuration parameters and the second set of configuration parameters during a period from a sensing start time to a data retransmission time.

[0085] For example, the terminal performs partial sensing using the first set of configuration parameters within a period from a sensing start time to a resource selection time, and performs partial sensing using the second set of configuration parameters within a period from a resource selection time to a data retransmission time.

[0086] Also, for example, the terminal performs partial sensing using the first set of configuration parameters within a period from a sensing start time to a second time, and performs partial sensing using the second set of configuration parameters within a period from the second time to a last data retransmission time, where the second time is located before the first data transmission time and the interval between the second time and the first data transmission time is a second preset time length f2. Considering the characteristics of current periodic transmission and non-periodic transmission, the second preset time length f2 can be 31 slots.

[0087] As can be seen from the above, in the embodiment of the present disclosure, multiple sets of partial sensing configuration parameters are set for one transmission resource pool, and the terminal can use different configuration parameters to perform subsequent partial sensing operations for a certain period of time at different times according to the difference in the impact of periodic transmission and aperiodic transmission on resource selection reliability, for example, in the period of monitoring periodic transmission, a low-density partial sensing operation can be performed using a first set of partial sensing configuration parameters to ensure energy saving effect, and in the period of monitoring aperiodic transmission, a short-term high-density partial sensing operation can be performed using a second set of partial sensing configuration parameters to ensure the reliability of sensing results and reduce transmission collision. In addition, when power saving is performed using DRX, the embodiment of the present disclosure can use two sets of configuration parameters to perform partial sensing, and when achieving power saving effect, resource collision can be further appropriately reduced.

[0088] As one embodiment, in the embodiment of the present disclosure, the at least two sets of partial sensing configuration parameters are set based on the high or low sensing density. In the above step 31, the at least one set of partial sensing configuration parameters determined by the terminal is one set of partial sensing configuration parameters, and specifically, can be a first set of configuration parameters or a second set of configuration parameters. Thus, in the above step 32, the terminal performs partial sensing using the first set of configuration parameters or the second set of configuration parameters. The sensing densities of the first set of configuration parameters and the second set of configuration parameters are different. Here, it is assumed that the sensing density of the first set of configuration parameters is smaller than the sensing density of the second set of configuration parameters. Specifically, the following 1) to 2) can be realized for performing partial sensing using the first set of configuration parameters or the second set of configuration parameters.

[0089] 1) The terminal performs partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a data initial transmission time.

[0090] For example, the terminal performs partial sensing using the first set of configuration parameters during a period from a sensing start time to a resource selection time, and continues to perform partial sensing using the first set of configuration parameters during a period from a resource selection time to a first data transmission time, or the terminal performs partial sensing using the second set of configuration parameters during a period from a sensing start time to a resource selection time, and continues to perform partial sensing using the second set of configuration parameters during a period from a resource selection time to a first data transmission time.

[0091] Also, for example, the terminal performs partial sensing using the configuration parameters of the first set during a period from a sensing start time to a third time, and continues to perform partial sensing using the configuration parameters of the first set during a period from the third time to a first data transmission time, where the third time is located before the first data transmission time and the interval between the third time and the first data transmission time is a third preset time length f3. Or, the terminal performs partial sensing using the configuration parameters of the second set during a period from a sensing start time to a third time, and continues to perform partial sensing using the configuration parameters of the second set during a period from the third time to the first data transmission time, where the third time is located before the first data transmission time and the interval between the third time and the first data transmission time is a third preset time length f3.

[0092] Considering the characteristics of the current periodic and non-periodic transmission, here, the third preset time length f3 can be 31 slots.

[0093] 2) The terminal performs partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a data retransmission time.

[0094] For example, the terminal performs partial sensing using the first set of configuration parameters during a period from a sensing start time to a resource selection time, and continues to perform partial sensing using the first set of configuration parameters during a period from a resource selection time to a last data retransmission time, or the terminal performs partial sensing using the second set of configuration parameters during a period from a sensing start time to a resource selection time, and continues to perform partial sensing using the second set of configuration parameters during a period from a resource selection time to a last data retransmission time.

[0095] Also, for example, the terminal performs partial sensing using the first set of configuration parameters during a period from a sensing start time to a fourth time, and continues to perform partial sensing using the first set of configuration parameters during a period from the fourth time to a last data retransmission time, where the fourth time is located before a first data transmission time and the interval between the fourth time and the first data transmission time is a fourth preset time length f4. Or, the terminal performs partial sensing using the second set of configuration parameters during a period from a sensing start time to a fourth time, and continues to perform partial sensing using the second set of configuration parameters during a period from the fourth time to a last data retransmission time, where the fourth time is located before a first data transmission time and the interval between the fourth time and the first data transmission time is a fourth preset time length f4. Considering the characteristics of current periodic transmission and non-periodic transmission, the fourth preset time length f4 may be 31 slots.

[0096] The method of the embodiment of the present disclosure will be further described below by several examples. The following examples include performing partial sensing using two sets of configuration parameters, which are specifically classified into the following A to C.

[0097] A, Partial sensing is performed using two sets of configuration parameters in different DRX states. B. Partial sensing is performed using two sets of configuration parameters from the start of sensing to the first transmission. C. Partial sensing is performed using two sets of configuration parameters from sensing start to retransmission.

[0098] The following example further includes performing partial sensing using one set of configuration parameters, which are specifically classified into D to E below.

[0099] D. Partial sensing is performed using one set of parameters from the start of sensing to the first transmission. E. Partial sensing is performed using one set of parameters from sensing start to retransmission.

[0100] In each of the following examples and in Figures 4 to 14, each candidate resource may specifically be a unit such as one subframe or one slot, where n represents the resource selection time, n-T0 represents the partial sensing start time before the resource selection, [n+T1,n+T2] represents the resource selection window, n-Tproc,0 represents the sensing result processing start time, m represents the first transmission start time of data, r represents the last retransmission start time, y represents the partial sensing start time after the resource selection, p represents the partial sensing period, and t y represents the slot corresponding to y, and t y+k×p represents the slot corresponding to y+k×p, f represents the partial sensing start time before the first transmission, and t f represents the slot corresponding to f, and t f+k×p represents the slot corresponding to f+k×p.

[0101] Also, for convenience, in the text below and in the drawings, the first set of configuration parameters may be referred to as "partial sensing configuration 1" or "configuration 1," and the second set of configuration parameters may be referred to as "partial sensing configuration 2" or "configuration 2."

[0102] A. Example of using two sets of partial sensing configuration parameters to accommodate DRX In the following three examples, two sets of partial sensing configuration parameters are set in the resource pool, where it is assumed that the service transmission period set in the resource pool is 200 ms and 300 ms, and the following two sets of partial sensing configuration parameters are set.

[0103] 1) Partial sensing configuration 1 The minimum number of candidate resources is 4, and the bit sequence of the candidate sensing interval is 1000100010 (low sensing density).

[0104] 2) Partial sensing configuration 2 The minimum number of candidate resources is 7, and the bit sequence of the candidate sensing interval is 1010101110 (high sensing density).

[0105] As an example 1, as shown in FIG. 4, partial sensing is performed using configuration 1 during the DRX inactive duration from sensing start to resource selection, and partial sensing is performed using configuration 2 during the DRX on duration.

[0106] (1) The terminal selects a set of resources from the resource selection window [n+T1, n+T2] as candidate resources. (2) The upper layer of the terminal transmits parameters such as the partial sensing period p and the partial sensing configuration 2 to the physical layer, where the upper layer may be a Radio Resource Control (RRC) and / or a Media Access Control (MAC) layer. (3) The terminal starts partial sensing at time n-T0 based on parameters such as period p and partial sensing configuration, and reports the sensing result to the upper layer. (4) When the DRX state of the terminal changes, the upper layer sends parameters such as the partial sensing period p and the partial sensing configuration 1 to the physical layer, where the partial sensing period p is a predefined or configured parameter. (5) The terminal performs partial sensing based on parameters such as periodicity p and partial sensing configuration, and reports the sensing result to upper layers. (6) At time n, the terminal performs resource selection based on the previous partial sensing result to obtain the time-frequency locations of the initial transmission and retransmission resources.

[0107] As an example 2, as shown in FIG. 5, partial sensing is performed using configuration 1 during the DRX inactive duration from the start of sensing to the first data transmission, and partial sensing is performed using configuration 2 during the DRX on duration.

[0108] (1) The terminal selects a set of resources from the resource selection window [n+T1, n+T2] as candidate resources. (2) The upper layer of the terminal transmits parameters such as the partial sensing period p and the partial sensing configuration 2 to the physical layer. (3) The terminal starts partial sensing at time n-T0 based on parameters such as period p and partial sensing configuration, and reports the sensing result to the upper layer. (4) When the DRX state of the terminal changes, the upper layer sends parameters such as the partial sensing period p and the partial sensing configuration 1 to the physical layer. (5) The terminal performs partial sensing based on parameters such as periodicity p and partial sensing configuration, and reports the sensing result to upper layers. (6) At time n, the terminal performs resource selection based on the previous partial sensing result to obtain the time-frequency locations of the initial transmission and retransmission resources. (7) If the number of slots between the first data transmission time and the resource selection time n reaches a (pre-)configuration threshold, the terminal may select to perform partial sensing between the n time and the first transmission using a partial sensing configuration, where the (pre-)configuration threshold and whether to perform partial sensing are determined by the terminal. (8) When the upper layer of the terminal receives an instruction to perform partial sensing between time n and the first transmission, it transmits parameters such as the partial sensing period p (which may be an updated value) and partial sensing configuration 2 to the physical layer based on the DRX state. (9) Based on parameters such as partial sensing period p and partial sensing configuration 2, when the physical layer receives upper layer parameters and processing is completed, the terminal starts partial sensing, ends partial sensing at the first transmission start time m, and reports the sensing result to the upper layer.

[0109] The method of sensing If p×c=my, then slot t y Starting from t y+k×p The terminal senses in a slot, c is the number of bits in the candidate sensing interval bit sequence, k is the index value of a bit having a value of 1 in the candidate sensing interval bit sequence, and the terminal ends partial sensing at time m. If p×c>my, then slot t y Starting from t y+k×pSense in the slot, where c is the number of bits in the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, and the terminal ends the partial sensing at time m. If p×c < m - y, slot t y starts from, and t y+(k+c×q)×p Sense in the slot, where c is the number of bits in the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, q = 0, 1, …, Q, Q = |(m - y) / (p×c)|, and when the candidate sensing sequence traverses once, the value of q is updated to add 1 to the current value of q. When it traverses Q times, the terminal ends the partial sensing at time m.

[0110] As an example 3, as shown in Fig. 6, from the start of sensing to retransmission, partial sensing is performed using Configuration 1 within the DRX inactive duration time, and partial sensing is performed using Configuration 2 within the DRX on duration time.

[0111] (1) The terminal selects a set of resources from the resource selection window [n + T1, n + T2] as candidate resources. (2) The upper layer of the terminal transmits parameters such as the period p of partial sensing and partial sensing Configuration 2 to the physical layer. (3) The terminal starts partial sensing at time n - T0 based on parameters such as the period p and partial sensing configuration, and reports the sensing result to the upper layer. (4) When the DRX state of the terminal changes, the upper layer transmits parameters such as the period p of partial sensing and partial sensing Configuration 1 to the physical layer. (5) The terminal performs partial sensing based on parameters such as the period p and partial sensing configuration, and reports the sensing result to the upper layer. (6) The terminal performs resource selection based on the previous partial sensing result at time n to obtain the time - frequency positions of the first - transmission and re - transmission resources. When the number of slots between the last retransmission and the resource selection time n reaches the (pre-)configured threshold, the terminal can choose to perform partial sensing from time n to the last retransmission using the partial sensing configuration (the (pre-)configured threshold and whether to perform partial sensing are determined by the terminal). (8) When the upper layer of the terminal receives an instruction to perform partial sensing from time n to the first transmission, it transmits parameters such as the partial sensing period p (which may be an updated value) and the partial sensing configuration 2 to the physical layer based on the DRX state. (9) Based on parameters such as the partial sensing period p and the partial sensing configuration 2, when the physical layer receives and finishes processing the upper layer parameters, the terminal starts partial sensing, ends partial sensing at the last retransmission start time r, and reports the sensing result to the upper layer.

[0112] Regarding the method of sensing, If p×c = r - y, starting from slot t y sensing is performed in the t y+k×p slot, c is the number of bits in the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, and the terminal ends partial sensing at time r. If p×c > r - y, starting from slot t y sensing is performed in the t y+k×p slot, c is the number of bits in the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, and the terminal ends partial sensing at time r. If p×c < r - y, starting from slot t y sensing is performed in the t y+(k+c×q)×p slot, c is the number of bits in the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, q = 0, 1, …, Q, Q = |(r - y) / (p×c)|, when the candidate sensing sequence traverses once, the value of q is updated by adding 1 to the current value of q, and when it traverses Q times, the terminal ends partial sensing at time r.

[0113] B. Example of using two sets of partial sensing configuration parameters from sensing start to first transmission. In the following two examples, two sets of partial sensing configuration parameters are set in the resource pool, where it is assumed that the service transmission period set in the resource pool is 200 ms and 300 ms, and the following two sets of partial sensing configuration parameters are set.

[0114] 1) Partial sensing configuration 1 The minimum number of candidate resources is 4, and the bit sequence of the candidate sensing interval is 1000101010 (low sensing density).

[0115] 2) Partial sensing configuration 2 The minimum number of candidate resources is 7, and the bit sequence of the candidate sensing interval is 1010101110 (high sensing density).

[0116] As an example 1, as shown in FIG. 7, partial sensing is performed using configuration 1 from sensing start to resource selection, and partial sensing is performed using configuration 2 from resource selection to first transmission.

[0117] (1) The terminal selects a set of resources from the resource selection window [n+T1, n+T2] as candidate resources. (2) The upper layer of the terminal transmits parameters such as the partial sensing period p and the partial sensing configuration 1 to the physical layer. (3) The terminal starts partial sensing at time n-T0 based on parameters such as period p and partial sensing configuration, and reports the sensing result to the upper layer. (4) At time n, the terminal performs resource selection based on the previous partial sensing result to obtain the time-frequency locations of the initial transmission and retransmission resources. (5) If the number of slots between the first transmission and the resource selection time n reaches a (pre-)configuration threshold, the terminal may choose to perform partial sensing between time n and the first transmission using a partial sensing configuration (the (pre-)configuration threshold and whether to perform partial sensing are determined by the terminal). When the upper layer of the terminal receives an instruction to perform partial sensing from time n to the first transmission, it transmits parameters such as the partial sensing period p (which may be an updated value), the partial sensing configuration 2, etc. to the physical layer. (7) When the physical layer has received and completed processing the upper layer parameters, based on parameters such as the partial sensing period p and the partial sensing configuration 2, the terminal starts partial sensing, ends the partial sensing at the first transmission start time m, and reports the sensing result to the upper layer.

[0118] Regarding the method of sensing, If p×c = m - y, starting from slot t y sensing is performed in t y+k×p slots, where c is the number of bits of the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, and the terminal ends the partial sensing at time m. If p×c > m - y, starting from slot t y sensing is performed in t y+k×p slots, where c is the number of bits of the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, and the terminal ends the partial sensing at time m. If p×c < m - y, starting from slot t y sensing is performed in t y+(k+c×q)×p slots, where c is the number of bits of the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, q = 0, 1, …, Q, Q = |(m - y) / (p×c)|, and for the candidate sensing sequence, when traversed once, the value of q is updated by adding 1 to the current value of q, and when traversed Q times, the terminal ends the partial sensing at time m.

[0119] As an example 2, as shown in Fig. 8, partial sensing is performed using configuration 1 from the start of sensing to time f before the first transmission, and partial sensing is performed using configuration 2 from time f before the first transmission to the first transmission.

[0120] (1) The terminal selects a set of resources from the resource selection window [n+T1, n+T2] as candidate resources. (2) The upper layer of the terminal transmits parameters such as the partial sensing period p and the partial sensing configuration 1 to the physical layer. (3) The terminal starts partial sensing at time n-T0 based on parameters such as period p and partial sensing configuration, and reports the sensing result to the upper layer. (4) At time n, the terminal performs resource selection based on the previous partial sensing result to obtain the time-frequency locations of the initial transmission and retransmission resources. (5) If the number of slots between the first transmission and the resource selection time n reaches a (pre-)configuration threshold, the terminal may choose to perform partial sensing between time n and the first transmission using a partial sensing configuration (the (pre-)configuration threshold and whether to perform partial sensing are determined by the terminal). (6) When the upper layer of the terminal receives an instruction to perform partial sensing between time n and the first transmission, it transmits parameters such as the partial sensing period p (which may be an updated value) and partial sensing configuration 2 to the physical layer. (7) Based on parameters such as partial sensing period p and partial sensing configuration 2, the terminal starts partial sensing in the 31st slot before the first transmission time m, ends partial sensing at the first transmission start time m, and reports the sensing result to the upper layer.

[0121] The method of sensing If p×c=mf, then slot t f Starting from t f+k×p The terminal senses in a slot, c is the number of bits in the candidate sensing interval bit sequence, k is the index value of a bit having a value of 1 in the candidate sensing interval bit sequence, and the terminal ends partial sensing at time m. If p×c>mf, slot t f Starting from t f+k×p The terminal senses in a slot, c is the number of bits in the candidate sensing interval bit sequence, k is the index value of a bit having a value of 1 in the candidate sensing interval bit sequence, and the terminal ends partial sensing at time m. When p×c < m - f, slot t f starts from, and t f+(k+c×q)×p is sensed in the slot. Here, c is the number of bits in the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, q = 0, 1, …, Q, Q = |(m - f) / (p×c)|. When the candidate sensing sequence traverses once, the value of q is updated to add 1 to the current value of q. When it traverses Q times, the terminal finishes the partial sensing at time m.

[0122] C. Example of using two sets of partial sensing configurations from sensing start to retransmission In the following two examples, two sets of partial sensing configuration parameters are set in the resource pool. Here, assuming that the service transmission periods set in the resource pool are 200 ms and 300 ms, the following two sets of partial sensing configuration parameters are set.

[0123] 1) Partial sensing configuration 1 The minimum number of candidate resources is 4, and the bit sequence of the candidate sensing interval is 1000101010 (low sensing density).

[0124] 2) Partial sensing configuration 2 The minimum number of candidate resources is 7, and the bit sequence of the candidate sensing interval is 1010101110 (high sensing density).

[0125] As an example 1, as shown in FIG. 9, partial sensing is performed using configuration 1 from sensing start to resource selection, and partial sensing is performed using configuration 2 from resource selection to retransmission.

[0126] (1) The terminal selects one set of resources from the resource selection window [n + T1, n + T2] as candidate resources. (2) The upper layer of the terminal transmits parameters such as the period p of partial sensing and partial sensing configuration 1 to the physical layer. (3) The terminal starts partial sensing at time n-T0 based on parameters such as period p and partial sensing configuration, and reports the sensing result to the upper layer. (4) The terminal performs resource selection based on the previous partial sensing result at time n to obtain the time-frequency positions of the initial transmission and retransmission resources. (5) If the number of slots between the last retransmission and the resource selection time n reaches the (pre-)configured threshold, the terminal can choose to perform partial sensing from time n to the last retransmission using the partial sensing configuration (the (pre-)configured threshold and whether to perform partial sensing are determined by the terminal). (6) When the upper layer of the terminal receives an instruction to perform partial sensing from time n to the last retransmission, it sends parameters such as the partial sensing period p (which may be an updated value) and the partial sensing configuration 2 to the physical layer. (7) Based on parameters such as the partial sensing period p and the partial sensing configuration 2, when the physical layer receives and finishes processing the upper layer parameters, the terminal starts partial sensing, ends partial sensing at the last retransmission start time r, and reports the sensing result to the upper layer.

[0127] Regarding the sensing method, When p×c = r-y, starting from slot t y sensing in t y+k×p slots, where c is the number of bits in the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, and the terminal ends partial sensing at time r. When p×c > r-y, starting from slot t y sensing in t y+k×p slots, where c is the number of bits in the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, and the terminal ends partial sensing at time r. When p×c < r-y, starting from slot t y sensing in t y+(k+c×q)×pThe terminal senses in a slot, c is the number of bits in the candidate sensing interval bit sequence, k is the index value of a bit whose value is 1 in the candidate sensing interval bit sequence, and q = 0, 1, ..., Q, Q = |(ry) / (p × c)|. After one traversal of the candidate sensing sequence, the value of q is updated by adding 1 to the current value of q, and after Q traversals, the terminal completes partial sensing at time r.

[0128] As an example 2, as shown in FIG. 10, partial sensing is performed using configuration 1 from the start of sensing to time f before the first transmission, and partial sensing is performed using configuration 2 from time f before the first transmission to the final retransmission.

[0129] (1) The terminal selects a set of resources from the resource selection window [n+T1, n+T2] as candidate resources. (2) The upper layer of the terminal transmits parameters such as the partial sensing period p and the partial sensing configuration 1 to the physical layer. (3) The terminal starts partial sensing at time n-T0 based on parameters such as period p and partial sensing configuration, and reports the sensing result to the upper layer. (4) At time n, the terminal performs resource selection based on the previous partial sensing result to obtain the time-frequency locations of the initial transmission and retransmission resources. (5) If the number of slots between the last retransmission and resource selection time n reaches a (pre-)configuration threshold, the terminal may choose to perform partial sensing between time n and the last retransmission using a partial sensing configuration (the (pre-)configuration threshold and whether to perform partial sensing are determined by the terminal). (6) When the upper layer of the terminal receives an instruction to perform partial sensing between time n and the last retransmission, it transmits parameters such as the partial sensing period p (which may be an updated value) and partial sensing configuration 2 to the physical layer. (7) Based on parameters such as partial sensing period p and partial sensing configuration 2, the terminal starts partial sensing at the 31st slot before the first transmission time m, ends partial sensing at the final retransmission start time r, and reports the sensing result to the upper layer.

[0130] Regarding the sensing method, When p×c = r - f, starting from slot t f and sensing in the t f+k×p slot, where c is the number of bits in the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, and the terminal ends the partial sensing at time r. When p×c > r - f, starting from slot t f and sensing in the t f+k×p slot, where c is the number of bits in the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, and the terminal ends the partial sensing at time r. When p×c < r - f, starting from slot t f and sensing in the t f+(k+c×q)×p slot, where c is the number of bits in the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, q = 0, 1, …, Q, Q = |(r - f) / (p×c)|. When the candidate sensing sequence traverses once, the value of q is updated to add 1 to the current value of q. When it traverses Q times, the terminal ends the partial sensing at time r.

[0131] D. Example of using a set of partial sensing configurations from the start of sensing to the first transmission In the following two examples, two sets of partial sensing configuration parameters are set in the resource pool. Here, assuming that the service transmission periods set in the resource pool are 200 ms and 300 ms, the following two sets of partial sensing configuration parameters are set.

[0132] 1) Partial sensing configuration 1 The minimum number of candidate resources is 5, and the bit sequence of the candidate sensing interval is 1000101010 (low sensing density).

[0133] 2) Partial sensing configuration 2 The minimum number of candidate resources is 5, and the bit sequence of the candidate sensing interval is 1010101110 (high sensing density).

[0134] As an example 1, as shown in FIG. 11, partial sensing is performed using configuration 1 from sensing start to resource selection, and partial sensing is performed using configuration 1 from resource selection to initial transmission.

[0135] (1) The terminal selects a set of resources from the resource selection window [n+T1, n+T2] as candidate resources. (2) The upper layer of the terminal transmits parameters such as the partial sensing period p and the partial sensing configuration 1 to the physical layer. (3) The terminal starts partial sensing at time n-T0 based on parameters such as period p and partial sensing configuration, and reports the sensing result to the upper layer. (4) At time n, the terminal performs resource selection based on the previous partial sensing result to obtain the time-frequency locations of the initial transmission and retransmission resources. (5) If the number of slots between the first transmission and the resource selection time n reaches a (pre-)configuration threshold, the terminal may choose to perform partial sensing between time n and the first transmission using a partial sensing configuration (the (pre-)configuration threshold and whether to perform partial sensing are determined by the terminal). (6) When the upper layer of the terminal receives an instruction to perform partial sensing between time n and the first transmission, it transmits parameters such as the partial sensing period p (which may be an updated value) and the partial sensing configuration 1 to the physical layer. (7) Based on parameters such as partial sensing period p and partial sensing configuration 1, when the physical layer receives upper layer parameters and processing is completed, the terminal starts partial sensing, ends partial sensing at the first transmission start time m, and reports the sensing result to the upper layer.

[0136] The method of sensing If p×c=my, then slot t y Starting from t y+k×pSense at the slot, where c is the number of bits in the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, and the terminal finishes partial sensing at time m. If p×c>m - y, then at slot t y starting from, t y+k×p Sense at the slot, where c is the number of bits in the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, and the terminal finishes partial sensing at time m. If p×c<m - y, then at slot t y starting from, t y+(k+c×q)×p Sense at the slot, where c is the number of bits in the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, q = 0, 1, …, Q, Q = |(m - y) / (p×c)|. When the candidate sensing sequence traverses once, update the value of q by adding 1 to the current value of q. When it traverses Q times, the terminal finishes partial sensing at time m.

[0137] As an example 2, as shown in FIG. 12, perform partial sensing using Configuration 1 from the start of sensing to time f before the first transmission, and perform partial sensing using Configuration 1 from time f before the first transmission to the first transmission.

[0138] (1) The terminal selects one set of resources from the resource selection window [n + T1, n + T2] as candidate resources. (2) The upper layer of the terminal transmits parameters such as the period p of partial sensing and Configuration 1 of partial sensing to the physical layer. (3) The terminal starts partial sensing at time n - T0 based on parameters such as the period p and the partial sensing configuration, and reports the sensing result to the upper layer. (4) The terminal performs resource selection based on the previous partial sensing result at time n to obtain the time - frequency positions of the first - transmission and re - transmission resources. (5) If the number of slots between the initial transmission and the resource selection time n reaches the (pre-)configured threshold, the terminal can choose to perform partial sensing from time n to the initial transmission using the partial sensing configuration (the (pre-)configured threshold and whether to perform partial sensing are determined by the terminal). (6) When the upper layer of the terminal receives an instruction to perform partial sensing from time n to the initial transmission, it transmits parameters such as the partial sensing period p (which may be an updated value), the partial sensing configuration 1, etc. to the physical layer. (7) Based on parameters such as the partial sensing period p and the partial sensing configuration 1, the terminal starts partial sensing at the 31st slot before the initial transmission time m and ends partial sensing at the initial transmission start time m, and reports the sensing result to the upper layer.

[0139] Regarding the sensing method, If p×c = m - f, starting from slot t f and sensing at t f+k×p slots, where c is the number of bits in the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the candidate sensing interval bit sequence, and the terminal ends partial sensing at time m. If p×c > m - f, starting from slot t f and sensing at t f+k×p slots, where c is the number of bits in the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the candidate sensing interval bit sequence, and the terminal ends partial sensing at time m. If p×c < m - f, starting from slot t f and sensing at t f+(k+c×q)×p slots, where c is the number of bits in the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the candidate sensing interval bit sequence, q = 0, 1, …, Q, Q = |(m - f) / (p×c)|, and for the candidate sensing sequence, when traversed once, the value of q is updated by adding 1 to the current value of q, and when traversed Q times, the terminal ends partial sensing at time m.

[0140] E. An example of using one set of partial sensing configurations from sensing start to retransmission In the following two examples, two sets of partial sensing configuration parameters are set in the resource pool, where it is assumed that the service transmission period set in the resource pool is 200 ms and 300 ms, and the following two sets of partial sensing configuration parameters are set.

[0141] 1) Partial sensing configuration 1 The minimum number of candidate resources is 5, and the bit sequence of the candidate sensing interval is 1000101010 (low sensing density).

[0142] 2) Partial sensing configuration 2 The minimum number of candidate resources is 5, and the bit sequence of the candidate sensing interval is 1010101110 (high sensing density).

[0143] As an example 1, as shown in FIG. 13, partial sensing is performed using configuration 1 from sensing start to the resource selection time, and partial sensing is performed using configuration 1 from the resource selection time to the last retransmission.

[0144] (1) The terminal selects a set of resources from the resource selection window [n+T1, n+T2] as candidate resources. (2) The upper layer of the terminal transmits parameters such as the partial sensing period p and the partial sensing configuration 2 to the physical layer. (3) The terminal starts partial sensing at time n-T0 based on parameters such as period p and partial sensing configuration, and reports the sensing result to the upper layer. (4) At time n, the terminal performs resource selection based on the previous partial sensing result to obtain the time-frequency locations of the initial transmission and retransmission resources. (5) If the number of slots between the last retransmission and resource selection time n reaches a (pre-)configuration threshold, the terminal may choose to perform partial sensing between time n and the last retransmission using a partial sensing configuration (the (pre-)configuration threshold and whether to perform partial sensing are determined by the terminal). When the upper layer of the terminal receives an instruction to perform partial sensing between time n and the last retransmission, it transmits parameters such as the partial sensing period p (which may be an updated value), the partial sensing configuration 2, etc. to the physical layer. (7) When the physical layer has received and completed processing of the upper layer parameters based on parameters such as the partial sensing period p and the partial sensing configuration 2, the terminal starts partial sensing and ends the partial sensing at the last retransmission start time r, and reports the sensing result to the upper layer.

[0145] Regarding the method of sensing, When p×c = r - y, starting from slot t y and sensing in t y+k×p slots, where c is the number of bits of the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, and the terminal ends the partial sensing at time r. When p×c > r - y, starting from slot t y and sensing in t y+k×p slots, where c is the number of bits of the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, and the terminal ends the partial sensing at time r. When p×c < r - y, starting from slot t y and sensing in t y+(k+c×q)×p slots, where c is the number of bits of the candidate sensing interval bit sequence, k is the index value of the bit with a value of 1 in the bit sequence of the candidate sensing interval, q = 0, 1, …, Q, Q = |(r - y) / (p×c)|, and for the candidate sensing sequence, when traversing once, the value of q is updated by adding 1 to the current value of q, and when traversing Q times, the terminal ends the partial sensing at time r.

[0146] As an example 2, as shown in FIG. 14, the terminal performs partial sensing using configuration 1 from the start of sensing to time f before the first transmission, and performs partial sensing using configuration 1 from time f before the first transmission to the retransmission.

[0147] (1) The terminal selects a set of resources from the resource selection window [n+T1, n+T2] as candidate resources. (2) The upper layer of the terminal transmits parameters such as the partial sensing period p and the partial sensing configuration 1 to the physical layer. (3) The terminal starts partial sensing at time n-T0 based on parameters such as period p and partial sensing configuration, and reports the sensing result to the upper layer. (4) At time n, the terminal performs resource selection based on the previous partial sensing result to obtain the time-frequency locations of the initial transmission and retransmission resources. (5) If the number of slots between the last retransmission and resource selection time n reaches a (pre-)configuration threshold, the terminal may choose to perform partial sensing between time n and the last retransmission using a partial sensing configuration (the (pre-)configuration threshold and whether to perform partial sensing are determined by the terminal). (6) When the upper layer of the terminal receives an instruction to perform partial sensing between time n and the last retransmission, it transmits parameters such as the partial sensing period p (which may be an updated value) and partial sensing configuration 1 to the physical layer. (7) Based on parameters such as partial sensing period p and partial sensing configuration 1, the terminal starts partial sensing at the 31st slot before the first transmission time m, ends partial sensing at the final retransmission start time r, and reports the sensing result to the upper layer.

[0148] The method of sensing If p×c=rf, then slot t f Starting from t f+k×p The terminal senses in a slot, c is the number of bits in the candidate sensing interval bit sequence, k is the index value of a bit having a value of 1 in the candidate sensing interval bit sequence, and the terminal finishes partial sensing at time r. If p×c>rf, then slot t f Starting from t f+k×p The terminal senses in a slot, c is the number of bits in the candidate sensing interval bit sequence, k is the index value of a bit having a value of 1 in the candidate sensing interval bit sequence, and the terminal finishes partial sensing at time r. When p×c < r - f, slot t f starts from, and t f+(k+c×q)×p is sensed in the slot, c is the number of bits in the candidate sensing interval bit sequence, k is the index value of the bit with value 1 in the candidate sensing interval bit sequence, q = 0, 1, …, Q, Q = |(r - f) / (p×c)|, and for the candidate sensing sequence, when traversed once, the value of q is updated to add 1 to the current value of q, and when traversed Q times, the terminal ends the partial sensing at time r.

[0149] Above, various methods of the embodiments of the present disclosure have been described. The following provides an apparatus for implementing the above methods.

[0150] As shown in FIG. 15, in the embodiments of the present disclosure, a terminal is provided, and the terminal includes a determination unit 151 and a sensing unit 152.

[0151] The determination unit 151 is configured to determine at least one set of partial sensing configuration parameters from at least two sets of different partial sensing configuration parameters. The sensing unit 152 is configured to perform partial sensing using the at least one set of partial sensing configuration parameters.

[0152] Optionally, each set of partial sensing configuration parameters has different sensing densities.

[0153] Optionally, each set of partial sensing configuration parameters includes a minimum number of candidate resources and a bit sequence of the candidate sensing interval.

[0154] Optionally, the terminal further includes a transmission unit configured to perform initial transmission and / or retransmission of data based on the sensing result obtained by partial sensing after performing partial sensing using the at least one set of partial sensing configuration parameters.

[0155] Optionally, the at least one set of partial sensing configuration parameters includes a first set of configuration parameters and a second set of configuration parameters, and the sensing unit further comprises: The mobile station is configured to perform partial sensing using the first set of configuration parameters when in a discontinuous reception DRX activation state DRX on duration, and to perform partial sensing using the second set of configuration parameters when in a DRX inactivation state DRX inactive duration.

[0156] Optionally, the sensing unit further comprises: performing partial sensing using the first set of configuration parameters when in a DRX on duration of DRX during a period from a sensing start time to a resource selection time, and performing partial sensing using the second set of configuration parameters when in a DRX inactive duration of DRX; Or, performing partial sensing using the first set of configuration parameters when in a DRX on duration of DRX during a period from a sensing start time to a data first transmission time, and performing partial sensing using the second set of configuration parameters when in a DRX inactive duration of DRX; Or, The device is configured to perform partial sensing using the first set of configuration parameters when in a DRX on duration of DRX, and to perform partial sensing using the second set of configuration parameters when in a DRX inactive duration of DRX, within a period from a sensing start time to a last data retransmission time.

[0157] Optionally, the at least one set of partial sensing configuration parameters includes a first set of configuration parameters and a second set of configuration parameters, and the sensing unit further comprises: performing partial sensing using the first set of configuration parameters and the second set of configuration parameters within a period from a sensing start time to a data first transmission time.

[0158] Optionally, the sensing unit further comprises: performing partial sensing using the first set of configuration parameters during a period from a sensing start time to a resource selection time, and performing partial sensing using the second set of configuration parameters during a period from a resource selection time to a data first transmission time; Or, The device is configured to perform partial sensing using the first set of configuration parameters within a period from a sensing start time to a first time, and to perform partial sensing using the second set of configuration parameters within a period from the first time to a first data transmission time, the first time being located before the first data transmission time and the interval between the first time and the first data transmission time being a first preset time length f1.

[0159] Optionally, the at least one set of partial sensing configuration parameters includes a first set of configuration parameters and a second set of configuration parameters, and the sensing unit further comprises: performing partial sensing using the first set of configuration parameters and the second set of configuration parameters within a period from a sensing start time to a data retransmission time.

[0160] Optionally, the sensing unit further comprises: performing partial sensing using the first set of configuration parameters during a period from a sensing start time to a resource selection time, and performing partial sensing using the second set of configuration parameters during a period from a resource selection time to a data retransmission time; Or, The device is configured to perform partial sensing using the first set of configuration parameters within a period from a sensing start time to a second time, and to perform partial sensing using the second set of configuration parameters within a period from the second time to a last data retransmission time, the second time being located before a data first transmission time and having an interval between the second time and the data first transmission time being a second preset time length f2.

[0161] Optionally, the at least one partial set of sensing configuration parameters includes only a first set of configuration parameters or only a second set of configuration parameters, and the sensing unit further comprises: performing partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a data first transmission time.

[0162] Optionally, the sensing unit further comprises: performing partial sensing using the first set of configuration parameters or the second set of configuration parameters during a period from a sensing start time to a resource selection time, and continuing to perform partial sensing using the first set of configuration parameters or the second set of configuration parameters during a period from a resource selection time to a data initial transmission time; Or, The device is configured to perform partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a third time, and to continue performing partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from the third time to a first data transmission time, wherein the third time is located before the first data transmission time and the interval between the third time and the first data transmission time is a third preset time length f3.

[0163] Optionally, the at least one partial set of sensing configuration parameters includes only a first set of configuration parameters or only a second set of configuration parameters, and the sensing unit further comprises: performing partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a data retransmission time.

[0164] Optionally, the sensing unit further comprises: performing partial sensing using the first set of configuration parameters or the second set of configuration parameters during a period from a sensing start time to a resource selection time, and subsequently performing partial sensing using the first set of configuration parameters or the second set of configuration parameters during a period from a resource selection time to a last data retransmission time; Or, The system is configured to perform partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a fourth time, and to continue performing partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from the fourth time to a last data retransmission time, wherein the fourth time is located before the first data transmission time and the interval between the fourth time and the first data transmission time is a fourth preset time length f4.

[0165] Selectably, a sensing density of the first set of configuration parameters is lower than a sensing density of the second set of configuration parameters.

[0166] It should be noted that the device in this embodiment corresponds to the method shown in FIG. 3, and the implementations in each of the above embodiments can be applied to the device embodiment to achieve the same technical effects. The device according to the embodiment of the present disclosure can achieve all the method steps achieved by the above method embodiment and achieve the same technical effects. Here, the same parts and beneficial effects of the method embodiment in this embodiment will not be described in further detail.

[0167] As shown in FIG. 16, it is a structural schematic diagram of a terminal according to an embodiment of the present disclosure, which includes: a processor 1601, a transceiver 1602, a memory 1603, a user interface 1604 and a bus interface.

[0168] In an embodiment of the present disclosure, the terminal further includes a program stored in the memory 1603 and executable by the processor 1601 .

[0169] The transceiver 1602 is used to transmit and receive data under the control of the processor.

[0170] The processor 1601 reads the computer program in the memory, determining at least one set of partial sensing configuration parameters from at least two different sets of partial sensing configuration parameters; and performing partial sensing using the at least one set of partial sensing configuration parameters.

[0171] Selectably, each set of partial sensing configuration parameters has a different sensing density.

[0172] Optionally, each set of partial sensing configuration parameters includes a minimum number of candidate resources and a bit sequence of a candidate sensing interval.

[0173] Optionally, the processor is further adapted to read a computer program in the memory to: The system is configured to perform the operations of: performing partial sensing using the at least one set of partial sensing configuration parameters, and then performing initial transmission and / or retransmission of data based on sensing results obtained by partial sensing.

[0174] Optionally, the at least one set of partial sensing configuration parameters includes a first set of configuration parameters and a second set of configuration parameters, and optionally the processor is further configured to read a computer program in the memory to: The mobile station is configured to perform the operations of: performing partial sensing using the first set of configuration parameters when in a discontinuous reception DRX activation state DRX on duration; and performing partial sensing using the second set of configuration parameters when in a DRX inactivation state DRX inactive duration.

[0175] Optionally, the processor is further adapted to read a computer program in the memory to: performing partial sensing using the first set of configuration parameters when in a DRX on duration of DRX during a period from a sensing start time to a resource selection time, and performing partial sensing using the second set of configuration parameters when in a DRX inactive duration of DRX; Or, performing partial sensing using the first set of configuration parameters when in a DRX on duration of DRX during a period from a sensing start time to a data first transmission time, and performing partial sensing using the second set of configuration parameters when in a DRX inactive duration of DRX; Or, The device is configured to perform the operations of performing partial sensing using the first set of configuration parameters when in a DRX on duration of DRX, and performing partial sensing using the second set of configuration parameters when in a DRX inactive duration of DRX, within a period from a sensing start time to a last data retransmission time.

[0176] Optionally, the at least one set of partial sensing configuration parameters includes a first set of configuration parameters and a second set of configuration parameters, and the processor is further configured to read a computer program in the memory to: performing partial sensing using the first set of configuration parameters and the second set of configuration parameters within a period from a sensing start time to a data first transmission time.

[0177] Optionally, the processor is further adapted to read a computer program in the memory to: performing partial sensing using the first set of configuration parameters during a period from a sensing start time to a resource selection time, and performing partial sensing using the second set of configuration parameters during a period from a resource selection time to a data first transmission time; Or, The device is configured to perform the operations of performing partial sensing using the first set of configuration parameters within a period from a sensing start time to a first time, and performing partial sensing using the second set of configuration parameters within a period from the first time to a first data transmission time, wherein the first time is located before the first data transmission time and an interval between the first time and the first data transmission time is a first preset time length f1.

[0178] Optionally, the at least one set of partial sensing configuration parameters includes a first set of configuration parameters and a second set of configuration parameters, and the processor is further configured to read a computer program in the memory to: performing partial sensing using the first set of configuration parameters and the second set of configuration parameters within a period from a sensing start time to a data retransmission time.

[0179] Optionally, the processor is further adapted to read a computer program in the memory to: performing partial sensing using the first set of configuration parameters within a period from a sensing start time to a resource selection time, and performing partial sensing using the second set of configuration parameters within a period from a resource selection time to a data retransmission time; Or, The device is configured to perform the operations of performing partial sensing using the first set of configuration parameters within a period from a sensing start time to a second time, and performing partial sensing using the second set of configuration parameters within a period from the second time to a last data retransmission time, the second time being located before a data first transmission time and an interval between the second time and the data first transmission time being a second preset time length f2.

[0180] Selectable, The at least one set of partial sensing configuration parameters includes only a first set of configuration parameters or only a second set of configuration parameters, and the processor is further configured to read a computer program in the memory to: The terminal is configured to perform an operation of performing partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a data initial transmission time.

[0181] Optionally, the processor is further adapted to read a computer program in the memory to: performing partial sensing using the first set of configuration parameters or the second set of configuration parameters during a period from a sensing start time to a resource selection time, and continuing to perform partial sensing using the first set of configuration parameters or the second set of configuration parameters during a period from a resource selection time to a data initial transmission time; Or, The device is configured to perform the following operations: performing partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a third time, and continuing to perform partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from the third time to a first data transmission time, wherein the third time is located before the first data transmission time and the interval between the third time and the first data transmission time is a third preset time length f3.

[0182] Optionally, the at least one set of partial sensing configuration parameters includes only a first set of configuration parameters, and the processor is further configured to read a computer program in the memory to: The terminal is configured to perform an operation of performing partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a data retransmission time.

[0183] Optionally, the processor is further adapted to read a computer program in the memory to: performing partial sensing using the first set of configuration parameters or the second set of configuration parameters during a period from a sensing start time to a resource selection time, and subsequently performing partial sensing using the first set of configuration parameters or the second set of configuration parameters during a period from a resource selection time to a last data retransmission time; Or, The device is configured to perform the operations of performing partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a fourth time, and continuing to perform partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from the fourth time to a last data retransmission time, wherein the fourth time is located before the first data transmission time and the interval between the fourth time and the first data transmission time is a fourth preset time length f4.

[0184] Selectably, a sensing density of the first set of configuration parameters is lower than a sensing density of the second set of configuration parameters.

[0185] It can be understood that in the embodiments of the present disclosure, when the computer program is executed by the processor 1601, it can realize each process of the method embodiment shown in Figure 3 above, and achieve the same technical effect. To avoid duplication, the description will be omitted here.

[0186] In FIG. 16, the bus architecture may include any number of interconnected buses and bridges, specifically connecting various circuits, such as one or more processors, represented by processor 1601, and memory, represented by memory 1603. The bus architecture may further connect various other circuits, such as peripherals, regulators, and power management circuits, which are well known in the art and therefore will not be described here. The bus interface provides an interface. The transceiver 1602 may be multiple elements, i.e., may include a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium. For different user equipment, the user interface 1604 may further be an interface that can be externalized / internalized to the required device, and the connected equipment may include but is not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

[0187] The processor 1601 is responsible for managing the bus architecture and general processing, and the memory 1603 may store data used by the processor 1601 when performing operations.

[0188] It should be noted that the device in this embodiment corresponds to the method shown in FIG. 3, and the implementations in each of the above embodiments can be applied to the device embodiment to achieve the same technical effect. In this device, the transceiver 1602 and the memory 1603, and the transceiver 1602 and the processor 1601 can be communicatively connected via a bus interface, and the function of the processor 1601 can be realized by the transceiver 1602, and the function of the transceiver 1602 can be realized by the processor 1601. It should be noted that the above device according to the embodiment of the present disclosure can realize all the method steps realized by the above method embodiment and achieve the same technical effect. Here, the same parts and beneficial effects of the method embodiment in this embodiment will not be described in further detail.

[0189] Some embodiments of the present disclosure further provide a computer-readable storage medium having a program stored therein, the program being capable of, when executed by a processor, determining at least one set of partial sensing configuration parameters from at least two different sets of partial sensing configuration parameters; performing partial sensing using the at least one set of partial sensing configuration parameters.

[0190] When the program is executed by a processor, all the embodiments of the partial sidelink resource sensing method applied to the terminal side can be realized and the same technical effects can be achieved. To avoid duplication, the description will be omitted here.

[0191] Those of ordinary skill in the art will understand that the units and algorithm steps of each embodiment described in connection with the embodiments disclosed herein can be realized in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods for each specific application to realize the described functions, but such realization shall not be deemed to go beyond the scope of the present disclosure.

[0192] As will be apparent to those skilled in the art, for convenience and conciseness of description, the specific operating processes of the above-described systems, devices and units may refer to the corresponding processes in the method embodiments, and the description will be omitted here.

[0193] In the embodiments of the present disclosure, it is to be understood that the disclosed apparatus and method can be realized in other forms. For example, the above-described apparatus embodiments are merely exemplary, and the division of the units is only a logical function division, and may have other division methods when actually realized. For example, multiple units or components may be combined or integrated into other systems, or some features may be omitted or not implemented. In addition, the couplings or direct couplings or communication connections between the shown or discussed mutually may be indirect couplings or communication connections through some interfaces, devices or units, and may be electrical, mechanical, or other forms.

[0194] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place or distributed among multiple network units, among which some or all of the units may be selected according to actual needs to achieve the objective of the solution of the present embodiment.

[0195] In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, each unit may physically exist alone, or two or more units may be integrated into one unit.

[0196] If the above functions are realized in the form of software functional units and sold or used as independent products, they can be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present disclosure, in essence or the part that contributes to the prior art, or all or part of the technical solution can be represented in the form of a software product. The computer software product is stored in the storage medium and includes several commands to cause a computer device (which may be a personal computer, a server, a network device, etc.) or a processor to execute all or part of the steps of the methods described in each embodiment of the present disclosure. The storage medium includes various media that can store program codes, such as a USB disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0197] What has been described above is only the specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. For any technician familiar with the technical field, within the technical scope disclosed by the present disclosure, it can be easily considered that changes or substitutions should be included within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the scope of the claims.

[0198] It should be understood that the division of each module described above is merely a division of logical functions, and that when actually realized, all or part of the modules may be integrated into one physical entity or may be physically separated. In addition, these modules may all be realized in a form in which software is called by a processing element, all may be realized in a form in which the processing element calls software, or some modules may be realized in a form in which the processing element calls software. For example, the determination module may be a processing element established independently, or may be integrated and implemented in a chip of the device, or may be stored in the memory of the device in the form of program code, or may be executed by calling the function of the determination module by a processing element of the device. The same applies to the realization of other modules. It should be noted that these modules may all or partly be integrated or independently implemented. The processing element described herein may be an integrated circuit having a signal processing capability. In the realization process, each step of the method or each module may be completed by an integrated logic circuit of hardware in a processor element or by instructions in the form of software.

[0199] For example, each module, unit, sub-unit, or sub-module may be configured as one or more integrated circuits that perform the above method, such as one or more application specific integrated circuits (ASICs), one or more microprocessors (digital signal processors, DSPs), or one or more field programmable gate arrays (FPGAs). For example, when a certain module is realized in a form in which a processing element calls a program code, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or a processor that can call other program code. For example, these modules may be integrated together and realized in the form of a system-on-a-chip (SOC).

[0200] The terms "first", "second", and the like in the specification and claims of the present disclosure are not used to describe a particular order or sequence, but are used to distinguish between similar objects. It should be understood that the data used in this way may be appropriately exchanged so that the embodiments of the present disclosure described herein are performed, for example, in an order other than that shown or described herein. Furthermore, the terms "comprise" and "have" and any variations thereof are intended to be non-exclusive, for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are specifically recited, but may include other steps or units that are not specifically recited or that are inherent to the process, method, product, or apparatus. In addition, "and / or" as used in the specification and claims means at least one of the connected objects. For example, A and / or B and / or C include seven types of cases: A alone, B alone, C alone, both A and B are present, both B and C are present, both A and C are present, and both A, B, and C are present. Similarly, "at least one of A and B" as used in the specification and claims should be understood to mean "there is a single A, a single B, or both A and B."

[0201] Although the embodiments of the present disclosure have been described above with reference to the drawings, the present disclosure is not limited to the above-mentioned embodiments, which are merely illustrative and not limiting, and those skilled in the art may take many forms that fall within the scope of protection of the present disclosure under the suggestion of the present disclosure without departing from the spirit and scope of the claims of the present disclosure.

Claims

1. A method for partial sensing of sidelink resources, comprising: The terminal determines at least one set of partial sensing configuration parameters from at least two different sets of partial sensing configuration parameters; The terminal performs partial sensing using the at least one set of partial sensing configuration parameters; When the at least one set of partial sensing configuration parameters includes a first set of configuration parameters and a second set of configuration parameters, the terminal performing partial sensing using the at least one set of partial sensing configuration parameters includes: performing partial sensing using the first set of configuration parameters when the terminal is in a discontinuous reception DRX activation state (DRX on duration), and performing partial sensing using the second set of configuration parameters when the terminal is in a DRX inactive state (DRX inactive duration).

2. Each set of partial sensing configuration parameters has a different sensing density. The method of claim 1.

3. Each set of partial sensing configuration parameters includes a minimum number of candidate resources and a bit sequence of a candidate sensing interval. The method of claim 2.

4. After performing partial sensing using the at least one set of partial sensing configuration parameters, the method further comprises: and performing initial transmission and / or retransmission of data based on sensing results obtained by partial sensing. The method of claim 2.

5. The partial sensing using the first set of configuration parameters when the terminal is in a discontinuous reception DRX activation state (DRX on duration) and the partial sensing using the second set of configuration parameters when the terminal is in a DRX inactive duration state (DRX inactive duration) may include The terminal performs partial sensing using the first set of configuration parameters when in a DRX on duration of DRX during a period from a sensing start time to a resource selection time, and performs partial sensing using the second set of configuration parameters when in a DRX inactive duration of DRX; Or, The terminal performs partial sensing using the first set of configuration parameters when in a DRX on duration of DRX during a period from a sensing start time to a data initial transmission time, and performs partial sensing using the second set of configuration parameters when in a DRX inactive duration of DRX; Or, The terminal performs partial sensing using the first set of configuration parameters when in a DRX on duration of DRX during a period from a sensing start time to a last data retransmission time, and performs partial sensing using the second set of configuration parameters when in a DRX inactive duration of DRX during a period from a sensing start time to a last data retransmission time. The method of claim 1.

6. When the at least one set of partial sensing configuration parameters includes a first set of configuration parameters and a second set of configuration parameters, the terminal performing partial sensing using the at least one set of partial sensing configuration parameters further includes: The terminal performs partial sensing using the first set of configuration parameters and the second set of configuration parameters within a period from a sensing start time to a data first transmission time. The method of claim 1.

7. The terminal performs partial sensing using the first set of configuration parameters and the second set of configuration parameters during a period from a sensing start time to a data initial transmission time, The terminal performs partial sensing using the first set of configuration parameters during a period from a sensing start time to a resource selection time, and performs partial sensing using the second set of configuration parameters during a period from a resource selection time to a data initial transmission time; Or, The terminal performs partial sensing using the first set of configuration parameters within a period from a sensing start time to a first time, and performs partial sensing using the second set of configuration parameters within a period from the first time to a data initial transmission time, the first time being located before the data initial transmission time and an interval between the first time and the data initial transmission time being a first preset time length f1. The method according to claim 6.

8. When the at least one set of partial sensing configuration parameters includes a first set of configuration parameters and a second set of configuration parameters, the terminal performing partial sensing using the at least one set of partial sensing configuration parameters further includes: The terminal performs partial sensing using the first set of configuration parameters and the second set of configuration parameters within a period from a sensing start time to a data retransmission time. The method of claim 1.

9. When the at least one set of partial sensing configuration parameters includes only a first set of configuration parameters or only a second set of configuration parameters, the terminal performs partial sensing using the at least one set of partial sensing configuration parameters, The terminal performs partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a data initial transmission time. The method of claim 1.

10. The terminal performs partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a data initial transmission time, The terminal performs partial sensing using the first set of configuration parameters during a period from a sensing start time to a resource selection time, and continues to perform partial sensing using the first set of configuration parameters during a period from a resource selection time to a data initial transmission time; Or, the terminal performs partial sensing using the second set of configuration parameters during a period from a sensing start time to a resource selection time, and continues to perform partial sensing using the second set of configuration parameters during a period from a resource selection time to a data initial transmission time; Or, The terminal performs partial sensing using the first set of configuration parameters during a period from a sensing start time to a third time, and continues to perform partial sensing using the first set of configuration parameters during a period from the third time to a first data transmission time, the third time being located before the first data transmission time and an interval between the third time and the first data transmission time is a third preset time length f3; Or, The terminal performs partial sensing using the second set of configuration parameters during a period from a sensing start time to a third time, and continues to perform partial sensing using the second set of configuration parameters during a period from the third time to a data initial transmission time, the third time being located before the data initial transmission time and an interval between the third time and the data initial transmission time being a third preset time length f3.

10. The method of claim 9.

11. When the at least one set of partial sensing configuration parameters includes only a first set of configuration parameters or only a second set of configuration parameters, the terminal performs partial sensing using the at least one set of partial sensing configuration parameters, The terminal performs partial sensing using the first set of configuration parameters or the second set of configuration parameters within a period from a sensing start time to a data retransmission time. The method of claim 1.

12. A terminal, a determining unit configured to determine at least one set of partial sensing configuration parameters from at least two sets of different partial sensing configuration parameters; a sensing unit configured to perform partial sensing using the at least one set of partial sensing configuration parameters; When the at least one set of partial sensing configuration parameters includes a first set of configuration parameters and a second set of configuration parameters, the sensing unit further comprises:

4. A terminal configured to: perform partial sensing using the first set of configuration parameters when in a discontinuous reception DRX activation state (DRX on duration); and perform partial sensing using the second set of configuration parameters when in a DRX inactive state (DRX inactive duration).

13. Each set of partial sensing configuration parameters has a different sensing density. The terminal according to claim 12.

14. Each set of partial sensing configuration parameters includes a minimum number of candidate resources and a bit sequence of a candidate sensing interval. The terminal according to claim 13.

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