Data transmission method and data transmission device

Abstract

A data transmission method, a data transmission device, a non-transitory computer readable medium and a chip for sidelink communication are provided.

Description

[0001] This invention is a divisional application of the invention patent application with application number 202080072239.3 filed on November 19, 2020, and invention name "Data transmission method, data transmission device, non-temporary computer-readable medium and chip".

[0002] CROSS-REFERENCE TO RELATED APPLICATIONS

[0003] The present invention claims the benefit of U.S. Provisional Application No. 62 / 937,426, the entire contents of which are incorporated herein by reference. Technical Field

[0004] The present invention relates to communication technology, and in particular to side link communication. Background Art

[0005] The statements in this section only provide information related to the present invention and may not constitute prior art. In addition, the contents in this section may be used to define concepts related to the present invention.

[0006] During the development of long-term evolution-vehicle-to-everything (LTE-V2X) communications, two sidelink resource selection modes are supported, namely Mode 3 for network scheduling and Mode 4 for autonomous selection of user equipment (UE).

[0007] To avoid multiple UEs selecting the same or overlapping sidelink resources for transmission and causing collisions, the transmitting UE must first perform resource sensing to identify resources that have been reserved by other UEs before selecting unused / unoccupied resources for its own transmission. Summary of the invention

[0008] A data transmission method, a data transmission device, a non-transitory computer-readable medium and a chip for side link communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The drawings are for illustration purposes only and are not intended to limit the present invention.

[0010] Figure 1 A flow chart of a method is shown.

[0011] Figure 2 An exemplary UE is shown. DETAILED DESCRIPTION

[0012] According to various embodiments, for example, a device capable of performing a 3GPP (3 rdGeneration Partnership Project (3GPP) Release 15 or beyond the fourth generation (4 th Generation, 4G) LTE-V2X and fifth generation (5 th A method for selecting a sidelink priority threshold in LTE-V2X communication is provided for a vehicle (e.g., a car) and a user device (a smart phone) using a communication modem chipset for 5G (5G) NR-V2X.

[0013] According to the LTE sidelink mode 4 resource selection process, the UE may first identify the reserved resources by decoding the sidelink control information (SCI) transmitted from other UEs, and measure the physical sidelink shared channel (PSSCH) reference signal received power (RSRP) in the associated data resources. If the measured PSSCH RSRP level is higher than a certain threshold level, the UE may consider the associated sidelink resources to be unavailable for selection. That is, the associated sidelink resources should be excluded from the set of candidate resources for selection. Similarly, if the measured PSSCH RSRP is lower than the threshold level (for example, due to a long distance), the UE considers the reserved resources to be available for selection. The PSSCH RSRP threshold may be defined as a function of the transmission message priority level and the reception message priority level. There are 8 levels of sensing priority defined for LTE-V2X messages, sensingPriority = integer (1...8). Considering 8 levels of priority for messages to be transmitted and 8 levels of priority for received messages, there are 64 possible different priority combinations, so each transmit and receive message priority level pair has 64 different threshold levels. These threshold levels may be configurable (pre-configurable), and these threshold levels are represented in 3GPP TS36.331 and TS38.331 as information elements SL-ThresPSSCH-RSRP-List. According to various embodiments, the exact PSSCH RSRP threshold level applied for resource exclusion purposes may be derived.

[0014] According to various embodiments, in order for an LTE sidelink mode 4 UE or an NR sidelink mode 2 UE to properly select the correct threshold among the configured threshold set (SL-ThresPSSCH-RSRP-List) to determine whether the reserved sidelink resources should be excluded from the candidate resource set based on the corresponding transmission priority and reception priority, the priority threshold selection equation may be defined as i=(a-1)*8+b, where a is the priority of the message to be transmitted and b is the priority of the received message. In this way, the i-th SL-ThresPSSCH-RSRP field in the SL-ThresPSSCH-RSRP-List may have a current value range between ((1-1)*8+1)=1 and ((8-1)*8+8)=64, which may point to the entire range of the specified SL-ThresPSSCH-RSRP-List. Therefore, the UE may then select the appropriate and appropriate threshold level corresponding to the correct transmission (Tx) and reception (Rx) message priority during the resource exclusion and selection process.

[0015] According to various embodiments, to address the erroneous derivation of the PSSCH RSRP threshold For the problem, the priority threshold selection equation can be defined as i=(a-1)*8+b.

[0016] In this way, the i-th SL-ThresPSSCH-RSRP field in the SL-ThresPSSCH-RSRP-List may have a current value range between ((1-1)*8+1)=1 and ((8-1)*8+8)=64, which may point to the entire range of the SL-ThresPSSCH-RSRP-List as expected.

[0017] Therefore, the UE may then select the appropriate and proper threshold level corresponding to the correct Tx message priority and Rx message priority during the resource exclusion and selection process.

[0018] Therefore, the UE may not be affected by not finding suitable resources to transmit its message, and its V2X communication performance is expected to be improved.

[0019] Furthermore, this definition of the priority threshold selection equation is applicable to situations where local sensing is configured as well as situations where local sensing is not configured by higher layers.

[0020] The methods and devices according to various embodiments may be applied to TS 36.213v16.2.0 (2020-06) for LTE V2X, which will be described below.

[0021] According to various embodiments, a UE procedure for determining a subset of resources to be reported to higher layers in PSSCH resource selection in LTE sidelink transmission Mode 4 and in sensing measurements in LTE sidelink transmission Mode 3 may be provided as follows.

[0022] In LTE sidelink transmission mode 4, when higher layers request carriers in subframe n, the UE may determine the set of resources to be reported to higher layers for PSSCH transmission according to the steps described herein. Parameter L subCH It can be the number of subchannels used for PSSCH transmission in a subframe, P rsvp_Tx The interval can be reserved for resources, and prio TX It may be a priority transmitted by the UE in the associated SCI format 1, all of which are provided by higher layers, such as the medium access control (MAC) layer whenever there is SL data available for transmission.

[0023] The number of subframes in a set of time and frequency resources used for PSSCH transmission opportunities is given by C resei Given, and where if SL_RESOURCE_RESELECTION_COUNTER is configured, then C resel Can be determined by 10*SL_RESOURCE_RESELECTION_COUNTER, otherwise C resel is set to 1.

[0024] In sidelink transmission mode 3, when a carrier is requested by higher layers in subframe n, the UE may determine the set of resources to be reported to higher layers in sensing measurements according to the steps set out herein. Parameter L subCH , P rsvp_TX and prio TX May be provided by higher layers (eg, MAC layer).

[0025] C resel By C resel =10*SL_RESOURCE_RESELECTION_COUNTER, where SL_RESOURCE_RESELECTION_COUNTER is provided by a higher layer (e.g., MAC layer).

[0026] If local sensing is not configured by higher layers, the following steps can be used:

[0027] 1) Candidate single subframe resource R for PSSCH transmission x，y Can be defined as a subframe A set L with subchannel x+j in subCHconsecutive subchannels, where j = 0, ..., L subCH -1. The UE may assume that any set of L in the corresponding PSSCH resource pool (which is a collection of time and frequency resources for PSSCH transmission) is included in the time interval [n+T1, n+T2]. subCH consecutive subchannels correspond to a candidate single subframe resource, where if T 2min (prio TX ) is a higher layer for prio TX Provided, then T1 and T2 are selected when T1≤4 and T 2min( prio TX )≤T2≤100 depends on the UE implementation, otherwise 20≤T2≤100. The UE selection of T2 can meet the latency requirement. The total number of candidate single subframe resources can be determined by M total express.

[0028] 2) The UE may monitor subframes other than those in which it transmits Where if subframe n belongs to the set but Otherwise subframe is in the set Based on the decoded PSCCH and measured S-RSSI in these subframes, the UE may perform actions in the following steps.

[0029] 3) Parameter Th a，b It can be set to the value indicated by the i-th SL-ThresPSSCH-RSRP field in the SL-ThresPSSCH-RSRP-List, where i=(a-1)*8+b.

[0030] 4) The set S can be A Initialize to the union of all candidate single subframe resources. B Initialized to an empty set.

[0031] 5) If all of the following conditions are met, the UE can select from the set S A Exclude any candidate single subframe resource R x，y :

[0032] - The UE does not monitor the subframe in step 2

[0033] - There exists a condition that satisfies y+j×P′ rsv，p TX =z+P step ×k×q integer j, where j=0, 1, ..., C resel -1, P′ rsvp TX=P step ×P rsvp_TX / 100, k is any value allowed by the higher layer parameter restrictResourceReservationPeriod and q = 1, 2, ..., Q. Here, if k < 1 and n'-z ≤ P step × k, then and otherwise Q = 1, where if subframe n belongs to the set but Otherwise subframe Belongs to the set The first subframe after subframe n.

[0034] 6) If all of the following conditions are met, the UE can select from the set S A Exclude any candidate single subframe resource R x，y :

[0035] -UE in subframe The SCI format 1 is received, and the "Resource reservation" field and the "Priority" field in the received SCI format 1 indicate the value P respectively. rsvp RX and prio RX . With value P rsvp RX The Resource Reservation field of may indicate the time period (eg, milliseconds) for which the indicated resources are reserved by the received SCI. RX The Priority field may indicate the priority level (from 1 to 8) of the received SL message.

[0036] -PSSCH-RSRP measurement based on received SCI format 1 is higher than

[0037] - In subframe The received SCI format or the assumed subframe The same SCI format received in 1 is determined according to 14.1.1.4C A set of overlapping resource blocks and subframes, q = 1, 2, ..., Q and j = 0, 1, ..., C resel -1. Here, if P rsvp_RX <1 and n′-m≤P step ×P rsvp_RX ,but Otherwise Q = 1, where if subframe n belongs to the set but Otherwise subframe is in the set The first subframe after subframe n.

[0038] If local sensing is configured by higher layers, the following steps are used:

[0039] 1) Candidate single subframe resource R for PSSCH transmission x，y Can be defined as a subframe A set L with subchannel x+j in subCH consecutive subchannels, where j = 0, ..., L subCH -1. The UE may determine a group of subframes through its implementation, the group of subframes consisting of at least Y subframes in the time interval [n+T1, n+T2], within the time interval [n+T1, n+T2], if T 2min (prio TX ) by higher layers for prio TX Provided, then T1 and T2 are selected when T1≤4 and T 2min (prio TX )≤T2≤100 depends on the UE implementation, otherwise 20≤T2≤100. The UE selection of T2 may meet the delay requirement, and Y may be greater than or equal to the higher layer parameter minNumCandidateSF. The UE may assume that any set of L in the determined set of subframes is included in the corresponding PSSCH resource pool (which is a collection of time and frequency resources for PSSCH transmission). subCH The number of consecutive subchannels corresponds to a candidate single subframe resource. The total number of candidate single subframe resources is M total express.

[0040] 2) If the subframe set in step 1 includes subframe If the kth bit of the higher layer parameter gapCandidateSensing is set to 1, the UE can monitor any subframe Based on the decoded PSCCH and measured S-RSSI in these subframes, the UE may perform actions in the following steps.

[0041] 3) The parameter Th can be a，b Set to the value indicated by the i-th SL-ThresPSSCH-RSRP field in the SL-ThresPSSCH-RSRP-List, where i=(a-1)*8+b.

[0042] 4) The set S can be A Initialize to the union of all candidate single subframe resources. B Initialized to an empty set.

[0043] 5) If all of the following conditions are met, the UE can select from the set S A Exclude any candidate single subframe resource R x，y:

[0044] -UE in subframe The SCI format 1 is received in the received SCI format 1, and the "resource reservation" field and the "priority" field in the received SCI format 1 respectively indicate the value P rsvp RX and prio RX . With value P rsvp RX The Resource Reservation field of may indicate the time period (eg, milliseconds) for which the indicated resources are reserved by the received SCI. RX The Priority field may indicate the priority level (from 1 to 8) of the received SL message.

[0045] -PSSCH-RSRP measurement based on received SCI format 1 is higher than

[0046] - In subframe The received SCI format or the assumed subframe The same SCI format received in 1 is determined with A set of overlapping resource blocks and subframes, q = 1, 2, ..., Q and j = 0, 1, ..., C resel -1. Here, if P rsvp_RX <1 and y′-m≤P step ×P rsvp_RX +P step ,but And otherwise Q = 1, where is the last subframe among the Y subframes.

[0047] The methods and apparatus according to various embodiments may be applied to TS 38.214 v16.2.0 (2020-06) or TS 38.214 v16.3.0 (2020-09) for NR sidelink as described below.

[0048] According to various embodiments, a UE process for determining a subset of resources to be reported to higher layers in PSSCH / physical sidelink control channel (PSCCH) resource selection in NR sidelink resource allocation mode 2 may be provided as follows.

[0049] In NR sidelink resource allocation mode 2, higher layers may request the UE to determine a resource subset from which they may select resources for PSSCH / PSCCH transmission. To trigger this process, in slot n, higher layers may provide the following parameters for this PSSCH / PSCCH transmission:

[0050] - the resource pool from which the resource will be reported;

[0051] -L1 priority prio TX ;

[0052] - the remaining packet delay budget;

[0053] - The number of subchannels L used for PSSCH / PSCCH transmission in a slot subCH ;

[0054] -optionally the resource reservation interval P in ms rsvp_TX .

[0055] -If higher layers request the UE to determine a subset of resources from which the higher layers can select resources for PSSCH / PSCCH transmission as part of the re-evaluation or pre-emption process, the higher layers may provide a set of resources (r0, r1, r2, ...) that can be re-evaluated and a set of resources (r′0, r′1, r′2, ...) that can be pre-empted.

[0056] The determination of the slot r" may depend on the UE implementation. i The subset of resources requested by higher layers before or after T3, where r″ i is the slot with the smallest slot index among (r0, r1, r2, ...) and (r′0, r′1, r′2, ...), and T3 is equal to in It is defined in slots to represent the time allowed to prepare PSSCH / PSCCH in a given subcarrier spacing.

[0057] The following higher-level parameters influence this process:

[0058] -sl-SelectionWindowList: For a given prio TX Value, internal parameter T 2min Can be set to the corresponding value from the higher-level parameter sl-SelectionWindowList;

[0059] -sl-ThresPSSCH-RSRP-List: This higher layer parameter can be set for each combination (p i , p i ) provides the RSRP threshold, where p i is the value of the priority field in the received SCI format 1-A, and p i is the priority of the UE in selecting resources for transmission; for a given call to this procedure, p i =prio TX ;

[0060] -sl-RS-ForSensing can select whether the UE uses PSSCH-RSRP measurement or PSCCH-RSRP measurement;

[0061] -sl-ResourceReservePeriodList-r16;

[0062] -sl-SensingWindow: The internal parameter T0 may be defined as the number of slots corresponding to sl-SensingWindow ms;

[0063] -sl-TxPercentageList: Given prlo TX The internal parameter X can be defined as sl-TxPercentageList(priO) which converts from percentage to ratio. TX );

[0064] -sl-PreemptionEnable: If sl-PreemptionEnable-r16 is provided, and if sl-PreemptionEnable-r16 is not equal to "enabled", the internal parameter prio pre Can be set to the parameter sl-PreemptionEnable provided by a higher layer.

[0065] Resource reservation interval P rsvp TX (if provided) can be converted from ms units to logical slot units, giving P′ rsvp TX .

[0066] The set of slots that may belong to the side link resource pool may be represented.

[0067] The following steps can be used:

[0068] 1) Candidate single slot resource R for transmission x，y can be defined as a set of L subCH There are consecutive subchannels, where subchannel x+j is in slot where j = 0, ..., L subCH -1. The UE shall assume that any set of L subCH A consecutive subchannel corresponds to a candidate single slot resource, where

[0069] -The choice of T1 depends on UE implementation in the case where It is defined in slots in Table 8.1.4-2 of TS38.214, where μ SLIt is the SCS configuration of SL BWP;

[0070] -If T 2min is shorter than the remaining packet delay budget (in slots), then T2 is determined by following T 2min ≤T2≤remaining packet delay budget (in slots) for UE implementation; otherwise T2 is set to the remaining packet delay budget (in slots). The total number of candidate single slot resources can be determined by M total express.

[0071] 2) The sensing window can be made of slots , where T0 is defined as above, and The slot unit is defined to represent the time that the UE is allowed to complete its sensing operation before the resource selection in slot n is triggered. In addition to those slots in which it performs its own transmission, the UE may monitor the slots of the sidelink resource pool that may belong to the sensing window. The UE may perform the following steps based on the PSCCH decoded in these slots and the measured RSRP.

[0072] 3) The internal parameter Th(p i , p j ) is set to the corresponding value of the RSRP threshold indicated by the i-th field in sl-ThresPSSCH-RSRP-List-r16, where i=p i +(p j -1)*8.

[0073] 4) The set S can be A Initialized to the set of all candidate single-slot resources.

[0074] 5) If all of the following conditions are met, the UE can select from the set S A Exclude any candidate single slot resources R x，y :

[0075] - UE does not monitor slot in step 2

[0076] - For any period value allowed by the higher layer parameter sl-ResourceReservePeriodList-r16 and in the slot The assumed SCI format 1-A (wherein the "resource reservation period" field is set to the period value) received in step 6 and indicating all sub-channels of the resource pool in this slot will satisfy condition c in step 6.

[0077] 6) If all of the following conditions are met, the UE can select from the set S A Exclude any candidate single slot resources R x，y :

[0078] a)UE in slot The SCI format 1-A is received in the received SCI format 1-A, and the "resource reservation period" field (if present) and the "priority" field in the received SCI format 1-A respectively indicate the value P rsvp RX and prio RX . With value P rsvp_RX The Resource Reservation field of may indicate the time period (eg, milliseconds) for which the indicated resources are reserved by the received SCI. RX The Priority field may indicate the priority level (from 1 to 8) of the received SL message.

[0079] b) For the received SCI format 1-A, the RSRP measurement performed is higher than Th(prio RX , prio TX ).

[0080] c) In the slot The received SCI format or the assumed slot The same SCI format received in (if and only if the "resource reservation period" field is present in the received SCI format 1-A) is determined as The set of overlapping resource blocks and slots, q = 1, 2, ..., Q and j = 0, 1, ..., C resel -1. Here, P′ rsvp RX is P converted into logical slot units rsvp_RX , if P rsvp_RX <T scal And n′-m≤P′ rsvp RX ,but Otherwise Q = 1, where if slot n belongs to the set but Otherwise slot is in the set The first slot after slot n of T scal The selection window size T2 can be set to be converted into ms units.

[0081] 7) If the set S A The number of candidate single slot resources remaining in is less than X·M total , then for each priority value Th(p i , p j )Th(p i , p j ) is increased by 3dB and the process continues with step 4.

[0082] The methods and apparatus described herein may be applied to the 4G standard (TS 36.213) for LTE sidelink. Likewise, the methods and apparatus described herein may be applied to the 5G standard (TS 38.214) for NR sidelink. Likewise, the methods and apparatus described herein may be applied to the 5G standard (TS 38.214v16.2.02020-06 or TS 38.214v16.3.02020-09).

[0083] As mentioned above, to solve the problem of erroneous PSSCH RSRP threshold As well as the existing problem of having the UE use too high a threshold level and therefore find a smaller number of available candidate resources to choose from, the priority threshold selection equation may be defined as i=(a-1)*8+b.

[0084] Figure 1 A flow chart illustrating a method of data transmission performed by an apparatus configured for sidelink communication. At S100, a reception priority level of data to be received may be determined. At S120, a transmission priority level of data to be transmitted may be determined. At S140, a threshold may be determined (e.g., based on the reception priority level and the transmission priority level). However, it should be understood that the threshold may be determined based on any other mechanism. At S160, resources may be excluded for sidelink communication based on the threshold.

[0085] According to various embodiments, a receive priority level and / or a transmit priority level may be provided to the device by a higher communication layer.

[0086] According to various embodiments, the reception priority level and / or the transmission priority level may be provided to the device in an SCI format (e.g., SCI format 1 or SCI format 1-A). For example, in the NR side link, the reception priority level is provided in SCI format 1-A. For example, in the LTE side link, the reception priority level is provided in SCI format 1.

[0087] According to various embodiments, the threshold value may be determined based on a threshold index.

[0088] According to various embodiments, the threshold index i may be determined according to the formula i=(a-1)*8+b, where a indicates the transmission priority level, and where b indicates the reception priority level.

[0089] According to various embodiments, the threshold may be determined based on a threshold index and a threshold list.

[0090] According to various embodiments, the data transmission method may further include resource sensing for determining a threshold.

[0091] According to various embodiments, the data transmission method may further include determining whether to exclude a resource from a candidate resource list for sidelink communication based on resource sensing and the threshold.

[0092] According to various embodiments, resource sensing may include or may be sensing in which local sensing is configured.

[0093] According to various embodiments, resource sensing may include or may be sensing in which local sensing is not configured.

[0094] According to various embodiments, the apparatus may include or may be a user equipment UE (e.g. Figure 2 ), and the sidelink communication may include or may be communication between a user device and another user device.

[0095] According to various embodiments, the sidelink communication may include or may be communication according to 4G for sidelink communication.

[0096] According to various embodiments, the sidelink communication may include or may be communication according to 5G for sidelink communication.

[0097] According to various embodiments, the sidelink communication may include or may be communication operating according to NR sidelink mode 2.

[0098] According to various embodiments, the sidelink communications may include or may be communications operating in accordance with LTE sidelink Mode 4.

[0099] According to various embodiments, the threshold is determined based on the receive priority level and the transmit priority level.

[0100] Apparatus configured to carry out the methods described herein may be provided, for example Figure 2 The UE shown in .

[0101] According to various embodiments, the apparatus may include transmitting means configured to transmit data using sidelink communication and receiving means configured to receive data using sidelink communication.

[0102] According to various embodiments, the device may include one or more processors and one or more memories storing program instructions, and when the program instructions are executed by the one or more processors, the device is configured to perform the methods described herein.

[0103] There may be provided a computer program comprising program instructions which, when executed by one or more processors in a device, cause the device to perform the methods set forth herein.

[0104] A carrier (eg, a computer-readable medium) for carrying the computer program set forth herein may be provided.

[0105] The following references may be helpful in understanding the present invention:

[0106] [1] 3GPP TS 38.211 V15.5.0: "NR; Physical channels and modulation" [2] 3GPP TS 38.212 V15.5.0: "NR; Multiplexing and channel coding" [3] 3GPP TS 38.213 V15.5.0: "NR; Physical layer control procedures" [4] 3GPP TS 38.214 V15.5.0: "NR; Physical layer data procedures" [5] 3GPP TS 38.215 V15.5.0: "NR; Physical layer measurements" [6] 3GPP TS 38.321 V15.5.0: "NR; Media Access Control (MAC) Protocol Specification" [7] 3GPP TS 38.331 V15.5.0: "NR; Radio Resource Control (RRC) protocol specification"

[0107] Listed below are some of the abbreviations used in the present invention:

[0108] 3GPP Third Generation Partnership Program 5G Fifth Generation NR New Radio RRC Radio Resource Control MAC Media Access Control PSSCH Physical side link shared channel PSCCH Physical side link control channel RB Resource Block RSRP Reference signal received power SL Sidelink Tx emission Rx take over

[0109] Terms:

[0110] 1. A data transmission method performed by an apparatus, wherein the apparatus is configured for sidelink communication, the method comprising:

[0111] determining a reception priority level of data to be received;

[0112] determining a transmission priority level of data to be transmitted;

[0113] Resources are excluded for the sidelink communication based on a threshold.

[0114] 2. The data transmission method according to clause 1,

[0115] Wherein the reception priority level and / or the transmission priority level are provided to the device by a higher communication layer.

[0116] 3. The data transmission method according to at least one of clauses 1 or 2,

[0117] The receiving priority level and / or the transmitting priority level are provided to the device in SCI format.

[0118] 4. The data transmission method according to at least one of clauses 1 to 3,

[0119] The threshold is determined based on a threshold index.

[0120] 5. The data transmission method according to clause 4,

[0121] The threshold index i is determined according to the formula i=(a-1)*8+b, where a indicates the transmission priority level, and where b indicates the reception priority level.

[0122] 6. The data transmission method according to at least one of clauses 1 to 5,

[0123] The threshold is determined based on the threshold index and the threshold list.

[0124] 7. The data transmission method according to at least one of clauses 1 to 6, further comprising:

[0125] Resource sensing, used to determine thresholds.

[0126] 8. The data transmission method according to clause 7, further comprising:

[0127] A determination is made based on the resource sensing and the threshold whether to exclude a resource from a list of candidate resources for sidelink communication.

[0128] 9. The data transmission method according to at least one of clauses 7 or 8,

[0129] The resource sensing includes sensing in which local sensing is configured.

[0130] 10. The data transmission method according to at least one of clauses 7 or 8,

[0131] Wherein the resource sensing includes sensing in which local sensing is not configured.

[0132] 11. The data transmission method according to at least one of clauses 1 to 10,

[0133] The apparatus comprises a user equipment UE, and the sidelink communication comprises communication between the user equipment and another user equipment.

[0134] 12. The data transmission method according to at least one of clauses 1 to 11,

[0135] The sidelink communication includes communication according to 4G sidelink communication.

[0136] 13. The data transmission method according to at least one of clauses 1 to 12,

[0137] The side link communication includes communication according to 5G side link communication.

[0138] 14. The data transmission method according to at least one of clauses 1 to 13,

[0139] The sidelink communication includes communication operating according to NR sidelink mode 2.

[0140] 15. The data transmission method according to at least one of clauses 1 to 14,

[0141] The sidelink communications include communications operating in accordance with LTE sidelink Mode 4.

[0142] 16. The data transmission method according to at least one of clauses 1 to 15,

[0143] The threshold is determined based on the receiving priority level and the transmitting priority level.

[0144] 17. A data transmission device, wherein the device is configured for sidelink communication, the device comprising:

[0145] a processing module configured to determine a reception priority level of data to be received and a transmission priority level of data to be transmitted;

[0146] An exclusion module is configured to exclude resources for the sidelink communication based on a threshold.

[0147] 18. The apparatus according to clause 17, comprising:

[0148] Wherein the reception priority level and / or the transmission priority level are provided to the device by a higher communication layer.

[0149] 19. The device according to at least one of clauses 17 or 18,

[0150] The receiving priority level and / or the transmitting priority level are provided to the device in SCI format.

[0151] 20. The device according to at least one of clauses 17 to 19,

[0152] The threshold is determined based on a threshold index.

[0153] 21. The device according to clause 20,

[0154] The threshold index i is determined according to the formula i=(a-1)*8+b, where a indicates the transmission priority level, and where b indicates the reception priority level.

[0155] 22. The device according to at least one of clauses 17 to 21,

[0156] The threshold is determined based on the threshold index and the threshold list.

[0157] 23. The apparatus according to at least one of clauses 17 to 22, further comprising:

[0158] The processing module is configured to perform resource sensing to determine a threshold.

[0159] 24. The apparatus according to clause 23, further comprising:

[0160] The processing module is configured to determine whether to exclude a resource from a candidate resource list for sidelink communication based on the resource sensing and the threshold.

[0161] 25. The device according to at least one of clauses 23 or 24,

[0162] The resource sensing includes sensing in which local sensing is configured.

[0163] 26. The device according to at least one of clauses 23 or 24,

[0164] Wherein the resource sensing includes sensing in which local sensing is not configured.

[0165] 27. The device according to at least one of clauses 17 to 26,

[0166] The apparatus comprises a user equipment UE, and the sidelink communication comprises communication between the user equipment and another user equipment.

[0167] 28. The device according to at least one of clauses 17 to 27,

[0168] The sidelink communication includes communication according to 4G sidelink communication.

[0169] 29. The device according to at least one of clauses 17 to 28,

[0170] The side link communication includes communication according to 5G side link communication.

[0171] 30. The device according to at least one of clauses 17 to 29,

[0172] The sidelink communication includes communication operating according to NR sidelink mode 2.

[0173] 31. The device according to at least one of clauses 17 to 30,

[0174] The sidelink communications include communications operating in accordance with LTE sidelink Mode 4.

[0175] 32. The device according to at least one of clauses 17 to 31,

[0176] The threshold is determined based on the receiving priority level and the transmitting priority level.

[0177] 33. The data transmission equipment comprises one or more processors and one or more memories storing program instructions, and when the program instructions are executed by the one or more processors, the device is configured to implement the method described in any one of clauses 1 to 16.

[0178] 34. A computer program comprising program instructions which, when executed by one or more processors in a device, cause the device to perform the method of any one of clauses 1 to 16.

[0179] 35. A non-transitory computer-readable medium comprising instructions, the instructions being executable by a processor to perform the method of any one of clauses 1 to 16.

[0180] 36. A chip comprising one or more processors, wherein the one or more processors are configured to execute program instructions stored in one or more memories to perform the method described in any one of clauses 1 to 16.

[0181] It should be understood that the present invention is not limited by any details of the foregoing description, but should be broadly interpreted based on the principles defined in the appended claims. Therefore, all changes and modifications or their equivalents falling within the scope of the claims are intended to be included in the scope of protection.

Claims

1. A data transmission method performed by a device, wherein the device is configured for sidelink communication, the data transmission method comprising: determining a reception priority level of data to be received; determining a transmission priority level of data to be transmitted; Resources are excluded for the sidelink communication based on a threshold.

2. The data transmission method according to claim 1, Wherein the reception priority level and / or the transmission priority level are provided to the device by a higher communication layer.

3. The data transmission method according to claim 1 or claim 2, The reception priority level and / or the transmission priority level are provided to the device in a sidelink control information format.

4. The data transmission method according to claim 1, The threshold is determined based on a threshold index.

5. The data transmission method according to claim 4, The threshold index i is determined according to the formula i=(a-1)*8+b, where a indicates the transmission priority level, and where b indicates the reception priority level.

6. The data transmission method according to claim 1, The threshold is determined based on the threshold index and the threshold list.

7. The data transmission method according to claim 1, further comprising: Resource sensing, used to determine thresholds.

8. The data transmission method according to claim 7, further comprising: A determination is made based on the resource sensing and the threshold whether to exclude the resource from a list of candidate resources for sidelink communication.

9. The data transmission method according to claim 7, The resource sensing includes sensing configured with local sensing.

10. The data transmission method according to claim 7, The resource sensing includes sensing without configuring local sensing.

11. The data transmission method according to claim 1, The apparatus comprises a user equipment, and the sidelink communication comprises communication between the user equipment and another user equipment.

12. The data transmission method according to claim 1, Wherein the sidelink communication comprises communication according to fourth generation sidelink communication.

13. The data transmission method according to claim 1, Wherein the sidelink communication comprises communication according to fifth generation sidelink communication.

14. The data transmission method according to claim 1, Wherein the sidelink communications include communications operating in accordance with new radio sidelink mode 2.

15. The data transmission method according to claim 1, Wherein the sidelink communications include communications operating in accordance with Long Term Evolution Sidelink Mode 4.

16. The data transmission method according to claim 1, The threshold is determined based on the receiving priority level and the transmitting priority level.

17. A data transmission equipment, comprising one or more processors and one or more memories storing program instructions, wherein when the program instructions are executed by the one or more processors, the data transmission device is configured to implement the data transmission method according to any one of claims 1 to 16.

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