CN116095628A

CN116095628A - Method performed by user equipment and user equipment

Info

Publication number: CN116095628A
Application number: CN202111302955.9A
Authority: CN
Inventors: 罗超; 赵毅男; 刘仁茂
Original assignee: Sharp Corp
Current assignee: Sharp Corp
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2023-05-09
Also published as: WO2023078344A1

Abstract

According to the present invention, there is provided a method performed by a user equipment, characterized by comprising: receiving a collaboration request in time slot n, wherein the collaboration request indicates a resource selection window start time slot offset

And determining the starting time slot of the resource selection window as

Wherein L is ^RESP Is the length of the collaboration response window associated with the collaboration request.

Description

Method performed by user equipment and user equipment

Technical Field

The present invention relates to a method performed by a user equipment and to a user equipment.

Background

In SL (sidelink, or simply sidelink) communication (e.g., when configured in SL resource allocation mode 2), an inter-UE (User Equipment) cooperation function may be supported, e.g., cooperation between two or more UEs on resource allocation. The inter-UE cooperation function needs to solve a series of problems, for example, how to determine two or more UEs related to inter-UE cooperation; as another example, how to determine the definition, configuration, mapping, transmission and reception of one or more messages related to inter-UE cooperation and the resources used by them, respectively, etc.

Prior art literature

Non-patent literature

Non-patent document 1: RP-152293,New WI proposal: support for V2V services based on LTE sidelink

Non-patent document 2: RP-170798,New WID on 3GPP V2X Phase 2

Non-patent document 3: RP-170855,New WID on New Radio Access Technology

Non-patent document 4: RP-190766,New WID on 5G V2X with NR sidelink

Non-patent document 5: RP-201385,WID revision: NR sidelink enhancement

Disclosure of Invention

In order to solve at least part of the above problems, the present invention provides a method performed by a user equipment and the user equipment, which can improve transmission efficiency of signaling related to inter-UE cooperation by indicating an offset from an end slot of a corresponding cooperation response window to a start slot of a resource selection window in a cooperation request so that a position of the resource selection window can be indicated with a very small signaling overhead.

And determining a resource selection windowThe starting time slot is +. >

Furthermore, according to the present invention, there is provided a user equipment comprising: a processor; and a memory storing instructions, wherein the instructions, when executed by the processor, perform the method described above.

Therefore, the present invention provides a method for improving transmission efficiency of signaling related to inter-UE cooperation by indicating an offset from an end slot of a corresponding cooperation response window to a start slot of a resource selection window in a cooperation request so that a position of the resource selection window can be indicated with a very small signaling overhead.

Drawings

The foregoing and other features of the invention will become more apparent from the following detailed description, taken in conjunction with the accompanying drawings in which:

fig. 1 is a flowchart illustrating a method performed by a user equipment according to an embodiment one of the present invention.

Fig. 2 shows a block diagram of a user equipment UE to which the present invention relates.

Detailed Description

The invention is described in detail below with reference to the drawings and the detailed description. It should be noted that the present invention should not be limited to the specific embodiments described below. In addition, for the sake of brevity, detailed descriptions of well-known techniques, which are not directly related to the present invention, are omitted to prevent confusion of the understanding of the present invention.

Various embodiments according to the present invention are described in detail below with respect to a 5G (or NR ("New Radio") or 5G NR) mobile communication system and its subsequent evolved version (e.g., 5G Advanced) as an example application environment. However, it should be noted that the present invention is not limited to the following embodiments, but is applicable to many other wireless communication systems, such as a communication system after 5G, a 4G mobile communication system before 5G, and the like.

The terms given in the present invention may be named differently in LTE (Long Term Evolution ), LTE-Advanced Pro, NR and later communication systems, but the present invention uses uniform terms and may be replaced by terms used in the corresponding systems when applied to a specific system.

In all examples and embodiments of the invention, unless otherwise specified:

alternatively, the eNB may refer to a 4G base station. For example, the eNB may provide termination of E-UTRA (Evolved UMTS Terrestrial Radio Access) user plane and control plane protocols to the UE; as another example, an eNB may connect to EPC (Evolved Packet Core ) through an S1 interface.

Alternatively, the ng-eNB may refer to an enhanced 4G base station. For example, the ng-eNB may provide termination of the E-UTRA user plane and control plane protocols to the UE; as another example, a NG-eNB may connect to a 5GC (5G Core Network) through a NG interface.

Alternatively, gNB may refer to a 5G base station. For example, the gNB may provide the UE with termination of NR user plane and control plane protocols; as another example, the gNB may be connected to the 5GC through an NG interface.

Alternatively, "send" (send) and "transmit" (transmit) may be interchanged, where applicable.

Alternatively, "symbol" may refer to an OFDM (Orthogonal Frequency Division Multiplexing ) symbol.

Alternatively, any two of "within X", "in X", and "on X" may be interchanged, where applicable; where X may be one or more carriers (e.g., SL carriers), or one or more BWP (Bandwidth Part, bandwidth segment, e.g., SL BWP), or one or more Resource pool (e.g., SL Resource pool), or one or more links (e.g., UL, uplink, such as DL, downlink), such as SL), or one or more channels (e.g., PSSCH (Physical Sidelink Shared Channel, physical side shared channel)), or one or more sub-channels, or one or more RBGs (Resource Block Group ), or one or more RBs (Resource Block), resource Block), or one or more "occasions" (e.g., PDCCH (Physical Downlink Control Channel, physical downlink control channel) listening occasions, such as PSSCH transmission occasions, such as PSSCH reception occasions, such as PSFCH (Physical Sidelink Feedback Channel, physical side feedback channel) transmission occasions, such as PSFCH reception occasions, etc.), or one or more OFDM symbols, or one or more slots, or one or more subframes, or one or more half frames, or one or more other time and/or frequency domains and/or code domains and/or spatial resources, etc.

Alternatively, "higher layer(s), or upper layer (s)) may refer to one or more protocol layers or protocol sublayers above a reference protocol layer (or reference protocol sublayer) in a given protocol stack (protocol stack). For example, for the physical layer, "higher layer" may refer to a MAC (Medium Access Control, medium challenge control) layer, or RLC (Radio Link Control, radio link control protocol) layer, or PDCP (Packet Data Convergence Protocol ) layer, or PC5 RRC (Radio Resource Control, radio resource control) layer, or PC5-S layer, or RRC layer, or V2X (Vehicle-to-everything) layer, or application layer, or V2X application layer, or the like. The reference protocol layer (or reference protocol sub-layer) refers to the physical layer, unless specifically stated.

Alternatively, "pre-configuration" may be pre-configured in a higher layer (e.g., RRC layer) protocol. Such as presetting a specific memory location in the UE (e.g., preset in the specification of the higher layer protocol) or presetting a specific memory location accessible to the UE (e.g., preset in the specification of the higher layer protocol).

Alternatively, "configuration" may be configured by signaling in a higher layer protocol. The UE is configured, for example, by RRC signaling transmitted from the base station to the UE.

Alternatively, one "resource" may correspond to one or more parameters in the time domain (e.g., a starting symbol of the resource; another example, a starting slot of the resource; another example, a number of symbols occupied by the resource; another example, a number of slots occupied by the resource; another example, a symbol in which the resource is located (e.g., when the resource occupies only one symbol)), another example, a slot in which the resource is located (e.g., when the resource occupies only one slot)), and/or one or more parameters in the frequency domain (e.g., a starting subchannel of the resource; another example, a starting resource block of the resource; another example, a starting subcarrier of the resource; another example, a number of subchannels occupied by the resource; another example, a number of subcarriers occupied by the resource), and/or one or more parameters in the code domain (e.g., a cyclic shift (cyclic shift) or a corresponding index, such as a cyclic shift (MIMO) and/or a corresponding layer (e.g., a layer (35) of the input or a corresponding to the resources).

Alternatively, time-domain (time-domain) resources may also be referred to as time (time) resources.

Frequency-domain (frequency-domain) resources may alternatively be referred to as frequency (frequency) resources.

Alternatively, a resource block may refer to a VRB (virtual resource block ), or PRB (physical resource block, physical resource block), or CRB (common resource block ), or otherwise defined resource block.

Alternatively, the numbering of the frequency domain resources (e.g., in order of frequency from low to high) may start from 0. For example, if the number of sub-channels (or sub-channels) configured in one resource pool is

Then the set of subchannels in the resource poolCan be represented as a set of corresponding subchannel numbers

As another example, a set of subcarriers in one resource block may be represented as {0,1,..11 } with a corresponding set of subcarrier numbers.

Alternatively, the numbering of the time domain resources (e.g. chronological order) may start from 0. For example, for 30kHz SCS, the set of slots in one subframe may be represented as {0,1} with the set of corresponding slot numbers.

Alternatively, "SCI" (Sidelink Control Information, sidestream control information) may refer to an instance of an SCI format (e.g., a first stage SCI format, as well as a second stage SCI format), or a combination of an instance of a first stage SCI format (e.g., SCI format 1-a) and an instance of a corresponding second stage SCI format (e.g., SCI format 2-a), where applicable. For example, a received SCI format 1-a, wherein each field corresponds to a determined value. As another example, a SCI format 1-a for transmission (or to be transmitted) wherein each field corresponds to a value that has been determined (or is to be determined), respectively. As another example, a received SCI format 1-A and corresponding SCI format 2-A, wherein each field of the SCI format 1-A corresponds to a determined value, and each field of the SCI format 2-A corresponds to a determined value.

Alternatively, "SL transmission" may include any one or more of the following, where applicable:

PSSCH transmission.

PSCCH (Physical Sidelink Control Channel ) and corresponding (or associated) PSSCH transmissions.

PSCCH or corresponding (or associated) psch transmissions.

PSFCH transmission.

S-SS/PSBCH (Sidelink-Synchronization Signal/Physical Sidelink Broadcast Channel ) transmission. (alternatively referred to as S-SSB transmission)

Optionally, a "SL resource" is a resource that may be used for SL transmission and/or SL reception.

Alternatively, where applicable, the "resource pool" may be replaced by a "SL resource pool".

Alternatively, where applicable, the "PSSCH transmission" may be replaced by "PSCCH and/or corresponding (or associated) PSSCH transmission".

Alternatively, a "SL slot" is a slot that may belong to a certain resource pool. For example, the set of numbers (e.g. called "physical slots") of all slots (e.g. from sfn=0 to sfn=1023, as well as dfn=0 to dfn=1023) recorded in a predefined period (e.g. an SFN (System Frame Number, system frame number) period, as well as a DFN (Direct Frame Number ) period, e.g. of duration 10240 ms; e.g. from sfn=0 to sfn=1023)

(wherein mu) _SL Is the subcarrier spacing configuration of the corresponding SL carrier or SL BWP, +.>

) Then the "SL time slot" set (e.g. denoted +.>

Wherein T is _max Is the SL time slot set->

The number of elements in) may be in the set of physical time slots T _all Excluding the set of slots remaining after the slots in the following sets:

S-SSB slot sets: a set of slots of the S-SSB is configured. The number of time slots in the S-SSB time slot set is recorded as N _{S_SSB} 。

non-SL time slot sets: in the phaseSL symbols configured in the corresponding SL BWP (e.g. slave symbols

Beginning of the succession

A symbol of->

And->

Configured by the parameters sl-startsymbols and sl-LengthSymbols, respectively), at least one symbol is not configured as a slot of UL symbols. The number of time slots in the S-SSB time slot set is recorded as N _nonSL 。

Reserving a time slot set: recording from said set of physical time slots T _all Excluding the time slots in the S-SSB time slot set and the time slots in the S-SSB time slot set, wherein the remaining time slots are respectively l according to the ascending sequence of the time slot index ₀ ，l ₁ ，…，

If->

Time slot

Belonging to the reserved time slot set. Wherein m=0, 1, …, N _reserved -1，

Wherein L is _bitmap Is a bitmap of a higher layer configuration (exampleFor example, one for determining the set of time slots +. >

A bitmap of which timeslots belong to a certain resource pool).

Alternatively, a "logical time slot" is a time slot within a given resource pool. For example, the resource pool u is kept in a predefined period (e.g. one SFN period, another e.g. one DFN period; e.g. 10240 ms in duration; e.g. from SFN=0 to SFN=1023, another e.g. from DFN=0 to DFN=1023) as a set of time slots

Then it can be considered that slot +.>

And time slot->

Is two adjacent logical time slots within the resource pool u (although the physical or SL time slots corresponding to these two time slots may not be adjacent).

Alternatively, time slot t ₁ And time slot t ₂ Offset between (or referred to as time slot t ₂ Relative to time slot t ₁ Is referred to as the offset from time slot t ₁ To time slot t ₂ Offset of (d) can be expressed as delta (t) ₁ ，t ₂ ). Alternatively, if delta (t ₁ ，t ₂ ) > 0, then the time slot t ₁ Earlier than the time slot t ₂ The method comprises the steps of carrying out a first treatment on the surface of the Alternatively, if delta (t ₁ ，t ₂ ) < 0, then the time slot t ₁ Later than the time slot t ₂ The method comprises the steps of carrying out a first treatment on the surface of the Alternatively, if delta (t ₁ ，t ₂ ) =0, then the time slot t ₁ Equal to the time slot t ₂ 。Δ(t ₁ ，t ₂ ) May be defined in one of the following ways:

physical slot offset. For example, delta (t ₁ ，t ₂ ) May be the time slot t ₂ At the set of physical time slots T _all The number and the place of the code The time slot t ₁ At the set of physical time slots T _all The difference in the numbers in (c). Wherein the time slot t ₁ And the time slot t ₂ It may belong to the same resource pool, or to two different resource pools, or not to any resource pool, or one of them belongs to a certain resource pool, and the other does not belong to any resource pool.

SL slot offset. For example, delta (t ₁ ，t ₂ ) May be the time slot t ₂ At the SL time slot set

And the time slot t ₁ In the SL time slot set->

The subscript difference in (c). Wherein the time slot t ₁ And the time slot t ₂ All belonging to "SL slots"; the time slot t ₁ And the time slot t ₂ It may belong to the same resource pool, or to two different resource pools, or not to any resource pool, or one of them belongs to a certain resource pool, and the other does not belong to any resource pool.

Logical slot offset. For example, for resource pools u, delta (t ₁ ，t ₂ ) May be the time slot t ₂ At the set

And the time slot t ₁ In the set->

The subscript difference in (c). Wherein (1)>

Is the set->

The number of elements in the matrix; the time slot t ₁ And the time slot t ₂ All belong toIn resource pool u.

Slot offsets within a given set of slots are referenced. For example, a predefined period (e.g. an SFN period, again e.g. a DFN period; e.g. a duration of 10240 ms; e.g. from sfn=0 to sfn=1023, again e.g. from dfn=0 to dfn=1023) is recorded as a set of time slots

Delta (t) ₁ ，t ₂ ) May be the time slot t ₂ At the set T _any And the time slot t ₁ At the set T _any The subscript difference in (c). Wherein,,

is the set T _any The number of elements in the matrix; the time slot t ₁ And the time slot t ₂ All belong to the set T _any 。

The allocation of the resources related to SL operation (e.g., time domain resources, e.g., frequency domain resources, e.g., code domain resources, e.g., space domain resources) may include:

mode 1 (Mode 1, or resource allocation Mode 1,Resource Allocation Mode 1, or straight-going resource allocation Mode 1,Sidelink Resource Allocation Mode 1): the base station schedules resources for SL transmissions.

Mode 2 (Mode 2, or resource allocation Mode 2,Resource Allocation Mode 2, or straight-going resource allocation Mode 2,Sidelink Resource Allocation Mode 2): the UE determines the resources for SL transmission (i.e., the base station does not participate in scheduling of the resources for SL transmission). For example, a UE performing a SL transmission operation autonomously determines resources for SL transmission.

Alternatively, in SL resource allocation mode 2, when a UE needs to select (or reselect) resources for initial transmission and/or retransmission for one or more transport blocks that it will transmit, a subset of resources (e.g., denoted as resource subset S) may be determined by a first resource subset determination procedure (alternatively referred to as a "first resource set determination procedure") _A Or referred to as resource set S _A ) However, it isBased on the resource subset S _A Resource selection or resource reselection is performed. For example, one transport block (or each of a plurality of transport blocks, respectively) may be derived from the subset of resources S _A One or more resources are selected for the primary or retransmission of the transport block, wherein each primary or retransmission may be a PSSCH/PSCCH transmission (e.g., a PSSCH transmission, such as a PSCCH transmission, and a PSSCH transmission and a PSCCH transmission multiplexed in the same resource). Optionally, in the case of a resource from said subset S of resources _A In selecting resources, a "random selection" may be used, e.g. from the subset of resources S in an equi-probability manner _A A resource is randomly selected.

Optionally, a specific way of triggering the first resource subset determining procedure (e.g. selected parameters, purpose of triggering the first resource subset determining procedure, etc.) and/or specific execution steps of the first resource subset determining procedure and/or from the resource subset S _A The combination of the ways of selecting resources corresponds to a kind of "resource selection mechanism". Alternatively, if the UE uses a certain resource selection mechanism in SL resource allocation pattern 2, the UE may be said to perform SL resource allocation pattern 2 based on the resource selection mechanism.

Alternatively, the first resource subset determination procedure may be performed by a physical layer entity.

Alternatively, the first resource subset determination procedure may be triggered by a physical layer entity, or by a higher layer entity (e.g., a MAC layer entity), or otherwise. Specifically, for example, if the first resource subset determining process is triggered by a higher layer entity, the higher layer entity may request the physical layer entity to determine a resource subset from which resources may be selected (i.e., the resource subset S _A ) Accordingly, the physical layer entity may determine the subset of resources S _A Which is then reported to the higher layer entity.

Optionally, the first resource subset determination process is associated with a set of parameters (e.g., denoted as P _A ) Related to the parameters of (a). For example, a certain step in the first resource subset determination process uses the parameter set P _A Values of one or more parameters of the system. Optionally, the parameter set P _A Each of which may be determined by a higher layer entity of the UE or by a physical layer entity of the UE or a predefined or configured or preconfigured value or determined from one or more predefined or configured or preconfigured parameters or provided upon triggering the first resource subset determination procedure.

Optionally, the parameter set P _A May comprise one or more of the following:

a pool of resources (e.g., denoted as u) for making resource selections. For example, the resource subset S _A May be a subset of a candidate set of resources in the resource pool u.

Priority (e.g., layer one priority, or physical layer priority). For example, the priority may be a priority associated with PSCCH and/or PSSCH transmissions on the selected resource, e.g., the corresponding priority value may be noted as prio _TX 。

Parameters related to the size of the resource. For example, the "size of the resource" may include the number of sub-channels occupied by each resource (e.g., the number of consecutive sub-channels), or the number of sub-channels corresponding to the PSCCH and/or PSSCH transmissions on the resource, e.g., denoted as L _subCH . Each resource may be defined within a time slot (which may be referred to as a single-slot resource at this time).

Resource reservation interval (resource reservation interval, RRI), e.g. denoted P _{rsvp_TX} 。

A set of resources for re-evaluation operations, e.g. denoted (r) ₀ ，r ₁ ，r ₂ ，...)。

A set of resources for preemption (pre-emption) operations, e.g. denoted (r' ₀ ，r′ ₁ ，r′ ₂ ，...)。

Parameters related to the resource selection window. For example, the resource selection window may be a time interval [ n+T ] ₁ ，n+T ₂ ]A corresponding time window, wherein n is a time slot triggering the first resource subset determining process, T ₁ And T ₂ May be two values determined by the UE that satisfy a certain condition. For example T ₁ May be related to the processing capabilities of the UE (e.g.,

wherein->

May be a predefined parameter related to the subcarrier spacing of the corresponding SL BWP configuration). T (T) ₂ Can be associated with the remaining packet delay budget (remaining packet delay budget, e.g. by taking it as +.>

) Related, e.g. to->

Wherein T is _2min May be a and prio _TX The relevant predefined or configured or preconfigured values.

Optionally, in the first resource subset determining process, the resource subset S is determined _A May be performed by initializing it to a candidate set of resources (e.g., a first candidate full set of single-slot resources) and then performing zero or one or more exclusionary operations thereon to obtain a final subset of resources S _A Wherein in each exclusion operation, in the current subset S of resources _A Zero or one or more resources meeting certain conditions are excluded. Wherein the first candidate single-slot resource corpus may be all corresponding L in a certain slot within the resource selection window in the resource pool u _subCH A set of resources for successive sub-channels (e.g. denoted as

) Or the set->

Is (e.g. denoted +.>

For example, the subset->

Not including resources in slots within the resource selection window where the corresponding PSSCH DMRS pattern does not exist). Alternatively, one in slot +.>

Occupied subchannel set { x, x+1., x+l. _subCH The candidate single slot resource of-1 may be denoted +.>

Optionally, the pair set S _A The excluding operations performed may include one or more of the following:

resources on which SL transmissions cannot be made due to the transmission capability limitations of the UE. For example, due to the limitation of the number of simultaneous transmissions supported by the UE, the UE cannot be in the set S when transmitting on other carriers _A And carrying out SL transmission on the corresponding SL carrier. As another example, the UE cannot be on the set S when transmitting on other carriers due to limitations of carrier combinations supported by the UE _A And carrying out SL transmission on the corresponding SL carrier. As another example, due to tuning to the set S _A The time required for a certain resource in (a) exceeds the capability of the UE, resulting in the UE being unable to make SL transmissions on the resource.

Resources (e.g., resources that have been reserved by other UEs) that the UE recognizes through sensing and/or other operations that satisfy certain conditions. Specifically, for example, by listening (monitor) or detecting (detect) or receiving (receive) resource reservation information (e.g., resource reservation information in SCI) sent on (e.g., by other UEs) SL links, further determined reserved resource sets and/or resource sets that cannot be determined whether reserved resource sets and/or resource sets that may result in collisions and/or resource sets that have been allocated and/or resource sets that are not available for allocation, etc. Optionally, the "resources already reserved by other UEs" includes resources reserved periodically as indicated by a "resource reservation interval" field in SCI, etc.

Optionally, in the first resource subset determining process, the resource subset S is determined _A In such a way that it is initialized to an empty set and then subjected to zero or one or more addition operations to obtain the final subset S of resources _A Wherein in each adding operation, in the current resource subset S _A Zero or one or more resources satisfying a certain condition are added.

A resource selection mechanism may be considered a "sensing-based resource selection mechanism" if it identifies resources that need to be excluded through a sensing operation. Wherein the sensing operation may be "full sensing" (or simply "sensing"), e.g., the UE must listen to a sensing window (e.g., time interval

All slots within (or may belong to) the resource pool u, except for those slots that cannot be monitored for some exceptions (e.g., those slots that cannot be monitored when performing SL transmissions due to half-duplex limitations) and/or some special slots (e.g., slots that cannot be used for transmission of PSCCHs and/or PSSCHs), within the corresponding time window, and/or the otherwise defined time window; wherein T is ₀ May be configured by higher layer parameters (e.g. parameter sl-SensingWindow)>

May be a predefined parameter related to the subcarrier spacing of the corresponding SL BWP configuration. The corresponding resource selection mechanism may be referred to as a "full sensing based resource selection mechanism", or a "baseResource selection at full sensing).

The sensing operation may also be "partial sensing" (e.g., the UE need only monitor partial time slots (e.g., periodically occurring partial time slots) belonging to (or possibly belonging to) the resource pool u within the sensing window. The corresponding resource selection mechanism may be referred to as a "partial sensing based resource selection mechanism", or "partial sensing based resource selection", or simply "partial sensing".

A resource selection mechanism may be considered to be a "non-sensing-based resource selection mechanism" if it does not involve (or does not perform) a sensing operation. For example, the resource subset S _A May be equal to the first full set of candidate single-slot resources or to a set of candidate single-slot resources excluding some special resources (e.g., resources in slots that cannot be used for transmission of PSCCH/PSSCH; e.g., resources on which SL transmissions cannot be made due to the UE's transmission capability limitations).

Alternatively, in a resource selection mechanism that is not based on sensing, if the UE uses a "random selection" approach from the subset of resources S _A Selecting resources (e.g. from the subset S of resources in an equi-probabilistic manner) _A The corresponding resource selection mechanism may be referred to as "random resource selection" (random resource selection), or simply "random selection").

An inter-UE cooperation (inter-UE cooperation) function may be supported in SL communication (e.g., in SL resource allocation mode 2), e.g., cooperation between two or more UEs over resource allocations and/or reservations and/or indications to increase efficiency of resource allocations and/or reservations and/or indications, and/or to reduce collisions of resource allocations and/or reservations and/or indications, and/or to mitigate and/or eliminate interference, etc. Specifically, for example, one UE (e.g., referred to as UE-A) may transmit "inter-UE cooperation information" (inter-UE-UE coordination information) or "cooperation information" (coordination information) to one or more other UEs (e.g., UE-B if there is only one other UE, and as another example, UE-B1, UE-B2, … …, respectively) where the cooperation information may explicitly or implicitly indicate (or correspond to, or be associated with) one or more resource sets (e.g., each such resource set is referred to as a "cooperation resource set" and, accordingly, each resource in a cooperation resource set is referred to as a "cooperation resource").

Optionally, one UE may support one or more collaboration schemes (coordination scheme), wherein the manner in which the collaboration information is determined and/or the content of the collaboration information (in particular the content of the set of collaboration resources) and/or the conditions triggering the transmission of the collaboration information and/or the manner in which the collaboration information is transmitted, etc. may be different among the different collaboration schemes.

Alternatively, in one collaboration scheme (e.g., referred to as a first collaboration scheme), the resources in one collaboration resource set may be "priority resources" (preferred resources), and accordingly, the collaboration resource set may be referred to as a "priority resource set", and the collaboration information carrying one "priority resource set" may be referred to as "priority collaboration information" (preferred co-ordination information, or "priority inter-UE collaboration information", preferred inter-UE co-ordination information). Wherein one priority resource indicated by UE-a to UE-B may be a resource that the UE-a expects to use (or preferentially use) by the UE-B, e.g., when the resource is used for PSCCH and/or PSCCH transmissions by the UE-B to the UE-a (or other UEs), the UE-a expects the UE-B to preferentially use the resource. The UE-B, upon receiving the priority resource set, may perform resource selection or resource reselection based on one or more resource sets, e.g., the one or more resource sets may include the collaborative resource set (e.g., referred to as a set

) And/or the set of resources identified by the UE-B based on its own sensing result (e.g., referred to as set S _SNS ) The method comprises the steps of carrying out a first treatment on the surface of the In particular, for example, if the set

And the set S _SNS The number of resources in the intersection of (a) is greater than (or greater than or equal to) a certain threshold, then the UE-B is based on the set +.>

And the set S _SNS Performs resource selection or resource reselection.

Alternatively, in the first collaboration scheme, the resources in one collaboration resource set may be "non-priority resources" (non-preferred resources), and accordingly, the collaboration resource set may be referred to as "non-priority resource set", and collaboration information carrying one "non-priority resource set" may be referred to as "non-priority collaboration information" (non-preferred co-ordination information, or "non-priority inter-UE collaboration information"). Wherein a non-priority resource indicated by UE-a to UE-B may be a resource that the UE-a expects the UE-B to not use (or preferably not use, or to preferentially exclude), e.g., when the resource is used for PSCCH and/or PSSCH transmissions by the UE-B to the UE-a (or other UEs), the UE-a expects the UE-B to preferentially exclude the resource. The UE-B, upon receiving the set of collaborative resources, may perform resource selection or resource reselection based on one or more sets of resources. For example, the one or more resource sets may include the non-priority resource set (e.g., referred to as a set

) And/or the UE-B identifies a set of resources S based on its own sensing results _SNS The method comprises the steps of carrying out a first treatment on the surface of the Specifically, for example, the UE-B is performing resource selection or resource reselection (e.g., when based on the set S _SNS Performing resource selection or resource reselection), the set may be excluded from +.>

Resources overlapping resources in (a).

Optionally, the first collaboration scheme may be configured or preconfigured to be enabled or disabled. The UE-a and/or UE-B enables the first collaboration scheme when the first collaboration scheme is configured or preconfigured to be enabled.

Alternatively, the transmission of the cooperation information may be triggered by the UE transmitting the cooperation information according to one or more predefined or configured or preconfigured conditions. For example, after UE-A completes resource selection or resource reselection for one transport block transmitted to UE-B, UE-A may trigger a cooperative information transmission to UE-B.

Alternatively, the collaboration information may be a response to or otherwise triggered by a "collaboration request" (coordination request, otherwise referred to as an "explicit collaboration request", explicit coordination request, otherwise referred to as an "explicit request". For example, UE-B transmits a cooperation request to UE-A requesting a set of cooperation resources (e.g., requesting a set of priority resources; e.g., requesting a set of non-priority resources); in response to the collaboration request, the UE-A may determine a corresponding set of collaboration resources and include it in collaboration information for transmission to the UE-B.

If UE-A is in time slot t _CR Receiving a cooperation request from UE-B, the UE-A can perform a time slot t _CRRW，0 A first time window (e.g. called collaboration request response window, in particular, e.g. time interval t _CRRW，0 ，t _CRRW，1 ]The corresponding time window) to transmit the cooperation information to the UE-B. Wherein the time slot t _CRRW，0 May be relative to the time slot t _CR Offset of

The time slots obtained after a time slot, i.e. +.>

Wherein->

Can represent a "collaboration requestSolving the response window initial time slot offset ", +.>

Accordingly, the UE-B may receive the cooperation information within the cooperation request response window. />

Optionally, if the UE-a cannot transmit the collaboration information within the collaboration request response window, the UE-a does not schedule transmission of the collaboration information (or cancels transmission of the collaboration information). Specifically, for example, the UE-a no longer selects (or reselects) resources for transmission of the collaboration information.

Optionally, if the UE-B cannot receive the collaboration information within the collaboration request response window, the UE-B does not schedule the receiving of the collaboration information (or cancels the receiving of the collaboration information).

Alternatively, in the first cooperative scenario, the UE-a may determine a subset of resources (e.g., denoted as a subset of resources) through a second subset of resources determination procedure (alternatively referred to as a "second set of resources determination procedure")

Or referred to as a resource collection

) And the resource subset +.>

As a set of cooperative resources (e.g., a set of priority resources, as well as a set of non-priority resources), is included in the cooperative information for transmission to the UE-B.

Optionally, the UE-A is determining the subset of resources

Later, the resource subset is first +.>

To exclude zero or one or more resources to satisfy collaboration messagesExtinguishing the limitation of the load size and then re-grouping the resource subset +.>

And transmitting to the UE-B in the cooperation information. At this point, a "set of collaborative resources" (e.g. "set of preferential resources", as well as "set of non-preferential resources") may refer to said subset of resources +_ before performing said excluding operation>

Or means the resource subset after performing the exclusion operation +.>

Optionally, in the second resource subset determination procedure, UE-a may perform one or more steps in the first resource subset determination procedure (or perform the complete first resource subset determination procedure, but replace one or more conditions and/or parameters and/or steps therein). Wherein one or more conditions and/or parameters and/or steps in the first resource subset determination procedure may be different from when the UE-a performs the first resource subset determination procedure in selecting (or reselecting) resources for transport blocks to be transmitted by itself.

Optionally, in the second resource subset determining process, a resource subset is determined

(e.g. when said resource subset +.>

When a preferred set of resources) may be obtained by initializing it to a candidate set of resources (e.g., a first candidate full set of single-slot resources) and then performing zero or one or more exclusionary operations thereon to obtain a final subset of resources +.>

Wherein in each exclusion operation, the current resource subset is +>

Zero or one or more resources meeting certain conditions are excluded.

Optionally, in the second resource subset determining process, the resource subset is determined

(e.g. when said resource subset +.>

The excluding operation performed when it is a priority resource set may be to overlap the resources reserved in the received SCI (e.g. SCI format 1-A) and satisfy a certain RSRP (Reference Signal Received Power ) condition and/or priority condition from the current resource subset->

Excluding from the middle.

(e.g. when said resource subset +.>

Is a set of priority resources) may be to +_ free resources in a time slot in which SL reception is not desired due to half duplex limitations from the current subset of resources >

Optionally, if UE-a performs the second resource subset determination procedure in order to determine the cooperation information to be transmitted to UE-B, the excluding operation is performed when UE-a is a receiving UE of one or more transport blocks of UE-B.

(e.g. when said resource subset +.>

Is a non-preferential resource set) may be performed by initializing it to an empty set and then performing zero or one or more add operations on it to obtain the final resource subset +.>

Wherein in each addition operation, the current resource subset is +>

Zero or one or more resources satisfying a certain condition are added.

(e.g. when said resource subset +.>

Is a non-priority resource set) may be to add resources reserved in the received SCI (e.g., SCI format 1-a) and meeting certain RSRP conditions and/or priority conditions to the current resource subset

(e.g. when said resource subset +.>

Is a non-priority resource set) may be to add resources in a time slot in which SL reception is not desired due to half-duplex limitations to the current subset of resources +.>

(optionally, if UE-a performs the second resource subset determination procedure in order to determine the cooperation information to transmit to UE-B, the adding operation is performed when UE-a is a receiving UE of one or more transport blocks of UE-B).

Alternatively, some or all of the information in the collaboration information may be included in the control information. Wherein, the control information may be physical layer control information or higher layer control information. For example, some or all of the information in the collaboration information may be included in the first stage SCI. As another example, some or all of the collaboration information may be included in the second stage SCI. As another example, some or all of the information in the collaboration information may be contained in SFCI (sidelink feedback control information, side-row feedback control information). As another example, some or all of the collaboration information may be included in other control information (e.g., referred to as SCCI, sidelink coordination control information, side-by-side collaboration control information).

Alternatively, some or all of the information in the cooperative information may be included in higher layer (e.g., MAC layer, also e.g., RRC layer) signaling. For example, some or all of the information in the cooperation information may be contained in one MAC CE (MAC Control Element ). As another example, some or all of the information in the cooperation information may be included in one RRC message.

Alternatively, part or all of the information in the cooperation information may be carried by one physical layer channel (or transmission of one of the physical layer channels), or by one physical layer signal (or transmission of one of the physical layer signals). For convenience, the physical layer channel/Signal may be referred to as a "physical sidelink collaboration information channel/Signal" (PSCICHS). Alternatively, the pscischs may be different physical layer channels or signals depending on the type of cooperation, e.g., for a priority resource indication and/or a non-priority resource indication, the pscischs may be a PSCCH, or a pscch+pscch, or a PSCCH, or one other physical layer channel, or one physical layer signal.

Alternatively, the resources (e.g., a time and/or frequency domain and/or code domain and/or spatial domain resource) occupied by one pscchs (or one pscchs transmission) may be referred to as a "pscchs resource". Alternatively, one pscischs resource (or a time domain resource corresponding to the pscischs resource, for example, a time slot in which the pscischs resource is located, and, for example, one or more symbols in which the pscischs resource is located) may be referred to as a "pscischs occasion" (pscischcision), or a "pscischs occasion resource" (PSCICHS occasion resource), or a "pscischs resource occasion" (PSCICHS resource occasion); for a UE transmitting pscchs, a pscchs resource (or a time domain resource corresponding to the pscchs resource, e.g., a time slot in which the pscchs resource is located, or one or more symbols in which the pscchs resource is located) may be referred to as a "pscchs transmission resource" (PSCICHS transmission resource), or a "pscchs transmission occasion" (PSCICHS transmission occasion), or a "pscchs transmission occasion resource" (PSCICHS transmission occasion resource), or a "pscchs transmission resource occasion" (PSCICHS transmission resource occasion); for a UE receiving pscchs, a pscchs resource (or a time domain resource corresponding to the pscchs resource, e.g., a slot in which the pscchs resource is located, or one or more symbols in which the pscchs resource is located) may be referred to as a "pscchs reception resource" (PSCICHS reception resource), or a "pscchs reception occasion" (PSCICHS reception occasion), or a "pscchs reception occasion resource" (PSCICHS reception occasion resource), or a "pscchs reception resource occasion" (PSCICHS reception resource occasion).

Alternatively, PSCICHS resources may be determined by sensing and/or resource selection mechanisms. For example, one pscischs may be one PSCCH and/or one pscsch.

Alternatively, one pscischs transmission may be associated with one priority. The priority may be represented by a priority value, e.g., the set of values of the priority value may be {0,1,., 7}; as another example, the set of values of the priority value may be {1,2,..8 }. Alternatively, a higher priority value indicates a lower priority (or "priority order"). Alternatively, a lower priority value indicates a lower priority (or "priority order"). Alternatively, without causing confusion, the priority of pscischs transmission may be referred to as the priority of pscischs.

Alternatively, one pscischs reception may be associated with one priority. The priority may be represented by a priority value, e.g., the set of values of the priority value may be {0,1,., 7}; as another example, the set of values of the priority value may be {1,2,..8 }. Alternatively, a higher priority value indicates a lower priority (or "priority order"). Alternatively, a lower priority value indicates a lower priority (or "priority order"). Alternatively, without causing confusion, the priority of PSCICHS reception may be referred to as the priority of PSCICHS.

Alternatively, the priorities associated with pscischs transmission and pscischs reception may be defined in the same manner. For example, the priority of one pscischs transmission and the range of values of the priority of one pscischs reception may be the same and may be compared with each other (e.g., when only one operation can be performed between one pscischs transmission and one pscischs reception due to the limitation of UE capability, the higher priority operation is performed). Alternatively, the manner of definition of the priorities associated with pscischs transmission and pscischs reception may be different.

Alternatively, the manner of determining the priority value corresponding to the priority associated with the pscischs transmission and the pscischs reception may be the same or different.

Alternatively, the cooperation information may be transmitted and/or received only in a case where the inter-UE cooperation function is enabled. The manner in which the inter-UE cooperative functionality is enabled (or disabled) may include semi-static (e.g., via higher layer protocol configuration or pre-configuration), and/or dynamic (e.g., indicated in SCI).

Alternatively, the collaboration request may be included in the control information. Wherein, the control information may be physical layer control information or higher layer control information. For example, some or all of the information in the collaboration request may be contained in the first stage SCI. As another example, some or all of the information in the collaboration request may be contained in the second stage SCI. As another example, some or all of the information in the collaboration request may be contained in the SFCI. As another example, some or all of the information in the collaboration request may be contained in other control information (e.g., SCCI).

Alternatively, some or all of the information in the collaboration request may be contained in a higher layer (e.g., MAC layer, as well as RRC layer) signaling. For example, some or all of the information in the collaboration request may be contained in one MAC CE. As another example, some or all of the information in the collaboration request may be contained in one RRC message.

Alternatively, part or all of the information in the cooperation request may be carried by one physical layer channel (or transmission of one of the physical layer channels), or by one physical layer signal (or transmission of one of the physical layer signals). For convenience, the physical layer channel/Signal may be referred to as a "physical sidelink collaboration request channel/Signal" (psclchs). Alternatively, the PSCCHs may be different physical layer channels or signals depending on the type of cooperation, e.g., for a priority resource indication and/or a non-priority resource indication, the PSCCHs may be PSCCHs, or pscch+pscchs, or PSCCH, or one other physical layer channel, or one physical layer signal; for resource collision indication, the PSCRCHS may be PSFCH, or one other physical layer channel, or one physical layer signal.

Alternatively, the resources (e.g., a time and/or frequency domain and/or code domain and/or spatial domain resource) occupied by one pscchs (or one pscchs transmission) may be referred to as a "pscchs resource". Alternatively, one pscchs resource (or a time domain resource corresponding to the pscchs resource, for example, a time slot in which the pscchs resource is located, and one or more symbols in which the pscchs resource is located, for example, may be referred to as a "pscchs occasion" (pscchs ocction), or a "pscchs occasion resource" (PSCRCHS occasion resource), or a "pscchs resource occasion" (PSCRCHS resource occasion); for a UE transmitting pscchs, a pscchs resource (or a time domain resource corresponding to the pscchs resource, e.g., a time slot in which the pscchs resource is located, or one or more symbols in which the pscchs resource is located) may be referred to as a "pscchs transmission resource" (PSCRCHS transmission resource), or a "pscchs transmission occasion" (PSCRCHS transmission occasion), or a "pscchs transmission occasion resource" (PSCRCHS transmission occasion resource), or a "pscchs transmission resource occasion" (PSCRCHS transmission resource occasion); for a UE receiving pscchs, a pscchs resource (or a time domain resource corresponding to the pscchs resource, e.g., a slot in which the pscchs resource is located, or one or more symbols in which the pscchs resource is located) may be referred to as a "pscchs reception resource" (PSCRCHS reception resource), or a "pscchs reception occasion" (PSCRCHS reception occasion), or a "pscchs reception occasion resource" (PSCRCHS reception occasion resource), or a "pscchs reception resource occasion" (PSCRCHS reception resource occasion).

Alternatively, the PSCRCHS resources may be determined by sensing and/or resource selection mechanisms. For example, one psclchs may be one PSCCH and/or one pscsch.

Example one

A method performed by a user equipment according to a first embodiment of the present invention is described below with reference to fig. 1.

As shown in fig. 1, in the first embodiment of the present invention, the steps performed by the user equipment UE (e.g., referred to as UE-a) include: step S101 and step S103.

Specifically, in step S101, one or more parameters related to the collaboration information are acquired.

Optionally, the one or more parameters include one or more parameters related to a resource selection window, for example, one or more of the following:

resource selection window reference slot (e.g., denoted t _RSW，ref )。

Resource selection window start slot offset (e.g., denoted as

)。

Resource selection window length (e.g., denoted as L ^RSW )。

Optionally, the resource selection window refers to time slot t _RSW，ref The corresponding physical time slot can be noted as

Optionally, the resource selection window refers to time slot t _RSW，ref The corresponding SL time slot can be noted as

Optionally, the resource selection window refers to time slot t _RSW，ref The corresponding logical time slots can be noted as

Optionally, the resource selection window starts slot offset

The corresponding number of physical time slots can be recorded as

Optionally, the resource selection window starts slot offset

The corresponding number of SL slots can be recorded as

Optionally, the resource selection window starts slot offset

The number of corresponding logical time slots can be recorded as

Optionally, the resource selection window length L ^RSW The corresponding number of physical time slots can be recorded as

Optionally, the resource selection window length L ^RSW The corresponding number of SL slots can be recorded as

Optionally, the resource selection window length L ^RSW The number of corresponding logical time slots can be recorded as

Optionally, the one or more parameters include one or more windows corresponding to the collaboration request response (e.g., note that the corresponding time interval is [ t ] _CRRW，0 ，t _CRRW，1 ]) Related parameters, such as one or more of the following:

the collaboration request response window start slot offset (e.g., denoted as

)。

Collaboration request response window length (e.g., denoted as L ^RESP )。

Optionally, the collaboration request response window starts time slot biasMoving

The corresponding number of physical time slots can be noted +.>

Optionally, the collaboration request response window starts time slot offset

The corresponding number of SL slots can be recorded as +. >

Optionally, the collaboration request response window starts time slot offset

The number of corresponding logical time slots can be recorded as +.>

Optionally, the collaboration request response window length L ^RESP The corresponding number of physical time slots can be recorded as

Optionally, the collaboration request response window length L ^RESP The corresponding number of SL slots can be recorded as

Optionally, the collaboration request response window length L ^RESP The number of corresponding logical time slots can be recorded as

Optionally, each of some or all of the one or more parameters may be indicated by one or more fields in a coordination request transmitted by another UE (e.g., referred to as UE-B) received by the UE.

Alternatively, each of some or all of the one or more parameters may be a predefined or configured or preconfigured value or determined from one or more predefined or configured or preconfigured parameters.

Optionally, the resource selection window refers to time slot t _RSW，ref May be based on the time slot (e.g., denoted as time slot t) in which the UE received the coordination request _CR The corresponding physical time slot is

SL time slot is +.>

Logical time slot is +.>

) And (5) determining. For example, a->

In another example, ->

As another example of the use of a catalyst,

wherein, optionally, O _CR，ref May be a predefined or configured or preconfigured value, or may be determined based on one or more predefined or configured or preconfigured parameters, e.g., O _CR，ref =0. Alternatively, O _CR，ref The value of (c) may relate to the subcarrier spacing of the corresponding SL BWP. Alternatively, O _CR，ref May be indicated in the collaboration request, e.g. in the time slot t _CR The SCI associated with the SL transmission (e.g., PSCCH and/or PSSCH transmission) carrying the collaboration request includes a "resource selection window reference time slot" field for indicating O _CR，ref Is a value of (2). Wherein, optionallyThe time slot t _CR Is the time slot in which the UE successfully decodes the information bits in the cooperation request was received before the last transmission (initial transmission or retransmission) of the cooperation request.

Optionally, the resource selection window refers to time slot t _RSW，ref Is a periodically occurring time slot, for example,

satisfy->

(or i) _RSW，ref mod T _RSW，ref ＝O _RSW，ref ) The method comprises the steps of carrying out a first treatment on the surface of the In another example, ->

Satisfy->

(or j) _RSW，ref mod T _RSW，ref ＝O _RSW，ref ) The method comprises the steps of carrying out a first treatment on the surface of the For example, a->

Satisfy->

(or k) _RSW，ref mod T _RSW，ref ＝O _RSW，ref ). Wherein T is _RSW，ref May be a predefined or configured or preconfigured value, or determined from one or more predefined or configured or preconfigured parameters, or indicated in the collaboration request; o (O) _RSW，ref May be a predefined or configured or preconfigured value or determined from one or more predefined or configured or preconfigured parameters or indicated in the collaboration request.

Optionally, the resource selection window starts slot offset

Can be associated withIs related to the subcarrier spacing of SL BWP.

Optionally, the resource selection window starts slot offset

May be a predefined or configured or preconfigured value or determined from one or more predefined or configured or preconfigured parameters.

Optionally, the resource selection window starts slot offset

It may be indicated in the collaboration request, for example, that the collaboration request contains a "resource selection window start slot offset" field with a value of +.>

Accordingly, optionally, according to +.>

Determine->

(e.g.)>

) Or according to->

Determine->

(e.g.)>

) Or according to->

Determine->

(e.g.

)。

Optionally, the resource selection window length L ^RSW May be related to the subcarrier spacing of the corresponding SL BWP.

Optionally, the resource selection window length L ^RSW May be a predefined or configured or preconfigured value or determined from one or more predefined or configured or preconfigured parameters.

Optionally, the resource selection window length L ^RSW May be indicated in the collaboration request, e.g. the collaboration request contains a "resource selection window length" field with a value of l ^RSW Accordingly, optionally according to l ^RSW Determination of

(e.g.)>

) Or according to l ^RSW Determine->

(e.g.)>

) Or according to l ^RSW Determination of

(e.g.)>

)。/>

Optionally, the collaboration request response window starts time slot offset

May be based on the time slot t _CR Is defined, is a single offset. For example，

Wherein->

Is time slot t _CRRW，0 Corresponding physical time slots. In another example, ->

Wherein->

Is time slot t _CRRW，0 Corresponding SL slots. As another example of the use of a catalyst,

wherein->

Is time slot t _CRRW，0 Corresponding logical time slots.

Optionally, the collaboration request response window starts time slot offset

May be based on the time slot t _RSW，ref Is defined, is a single offset. For example, a->

As another example of the use of a catalyst,

in another example, ->

Optionally, the collaboration request response window starts time slot offset

May be related to the subcarrier spacing of the corresponding SL BWP.

Optionally, the collaboration request response window starts time slot offset

May be a predefined or configured or preconfigured value or determined from one or more predefined or configured or preconfigured parameters or indicated in the collaboration request. For example, a->

Optionally, the collaboration request response window length L ^RESP May be related to the subcarrier spacing of the corresponding SL BWP.

Optionally, the collaboration request response window length L ^RESP May be a predefined or configured or preconfigured value or determined from one or more predefined or configured or preconfigured parameters or indicated in the collaboration request. Further, in step S103, the collaboration information is determined based on the one or more parameters.

Optionally, determining a subset of resources by said second subset of resources determination procedure

And sub-set of said resources->

(or the resource subset->

Is included in the collaboration information.

Optionally, in the second resource subset determining process, the length of the corresponding resource selection window is determined as one of the following:

·

and physical time slots.

·

And SL slots.

·

And logical time slots.

Optionally, in the second resource subset determining process, a starting time slot of a corresponding resource selection window is determined as one of the following:

physical time slots

Time slot

Corresponding physical time slots.

SL time slot

Time slot

Corresponding SL slots. />

Logical time slot

Time slot

Corresponding logical time slots.

Physical time slots

Time slot

Corresponding physical time slots.

SL time slot

Time slot

Corresponding SL slots.

Logical time slot

Time slot

Corresponding logical time slots.

Alternatively, in the first embodiment of the present invention, the "resource selection window start slot offset" may be named in other manners, for example, referred to as "resource selection window start slot", or "resource selection window start slot offset", etc.

Alternatively, in a first embodiment of the present invention, A ₁ Is a predefined or configured or preconfigured value or is determined according to one or more predefined or configured or preconfigured parameters, e.g. a ₁ =0; as another example, A ₁ =1; as another example, A ₁ = -1. Alternatively, A ₁ The value of (c) may relate to the subcarrier spacing of the corresponding SL BWP.

Alternatively, in a first embodiment of the present invention, A ₂ Is a predefined or configured or preconfigured value or is determined according to one or more predefined or configured or preconfigured parameters, e.g. a ₂ =0; as another example, A ₂ =1; as another example, A ₂ = -1. Alternatively, A ₂ The value of (c) may relate to the subcarrier spacing of the corresponding SL BWP.

Alternatively, in a first embodiment of the present invention, A ₃ Is a predefined or configured or preconfigured value or is determined according to one or more predefined or configured or preconfigured parameters, e.g. a ₃ =0; as another example, A ₃ =1; as another example, A ₃ ＝-1。Alternatively, A ₃ The value of (c) may relate to the subcarrier spacing of the corresponding SL BWP.

Thus, according to a first embodiment, the present invention provides a method for improving the transmission efficiency of signaling related to inter-UE cooperation by indicating an offset from an end slot of a corresponding cooperation response window to a start slot of a resource selection window in a cooperation request, so that a position of the resource selection window can be indicated with a very small signaling overhead.

In the present invention, "inter-UE collaboration" and other related terms (e.g., "collaboration information," "collaboration request," "priority resource," "non-priority resource," "sidestream collaboration control information," "physical sidestream collaboration information channel/signal," "physical sidestream collaboration request channel/signal," "collaboration resource set" field, etc.) may be defined by their functions in the system and/or the corresponding flows and/or the corresponding signaling. These terms may be replaced by other names as applied to a particular system.

Modification example

Next, a user equipment that can perform the method performed by the user equipment described in detail above of the present invention as a modification will be described with reference to fig. 2.

Fig. 2 is a block diagram showing a user equipment UE according to the present invention.

As shown in fig. 2, the user equipment UE20 comprises a processor 201 and a memory 202. The processor 201 may include, for example, a microprocessor, microcontroller, embedded processor, or the like. The memory 202 may include, for example, volatile memory (such as random access memory RAM), a Hard Disk Drive (HDD), non-volatile memory (such as flash memory), or other memory. The memory 202 has stored thereon program instructions. Which, when executed by the processor 201, may perform the above-described method performed by the user equipment as described in detail herein.

The method and the apparatus involved of the present invention have been described above in connection with preferred embodiments. It will be appreciated by those skilled in the art that the methods shown above are merely exemplary and that the embodiments described above can be combined with one another without contradiction. The method of the present invention is not limited to the steps and sequences shown above. The network nodes and user equipment shown above may comprise further modules, e.g. modules that may be developed or developed in the future, available for base stations, AMFs (Access and Mobility Management Function, access and mobility management functions), UPFs (User Plane Function, user plane functions), MMEs (Mobility Management Entity, mobility management entities), S-GWs (Serving Gateway) or UEs, etc. The various identifiers shown above are merely exemplary and are not intended to be limiting, and the present invention is not limited to the specific cells that are examples of such identifiers. Many variations and modifications may be made by one of ordinary skill in the art in light of the teachings of the illustrated embodiments. It will be appreciated by those skilled in the art that some or all of the mathematical expression or mathematical equation or mathematical inequality may be reduced or transformed or rewritten to some extent, for example combining constant terms, as well as exchanging two addition terms, as well as exchanging two multiplication terms, as well as moving one term from left to right of the equation or inequality after changing the sign, as well as moving one term from right to left of the equation or inequality after changing the sign, etc.; the mathematical expressions or mathematical equations or mathematical inequalities before and after simplification or transformation or rewriting may be regarded as equivalent.

It should be understood that the above-described embodiments of the present invention may be implemented by software, hardware, or a combination of both software and hardware. For example, the various components within the base station and user equipment in the above embodiments may be implemented by a variety of means including, but not limited to: analog circuit devices, digital Signal Processing (DSP) circuits, programmable processors, application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs), programmable logic devices (CPLDs), and the like.

In the present invention, a "base station" may refer to a mobile communication data and/or control switching center having a certain transmission power and a certain coverage area, and includes, for example, functions of resource allocation scheduling, data receiving and transmitting, and the like. "user equipment" may refer to user mobile terminals including, for example, mobile phones, notebooks, etc., that may communicate wirelessly with a base station or micro base station.

Furthermore, embodiments of the invention disclosed herein may be implemented on a computer program product. More specifically, the computer program product is one of the following: has a computer readable medium encoded thereon with computer program logic that, when executed on a computing device, provides relevant operations to implement the above-described aspects of the invention. The computer program logic, when executed on at least one processor of a computing system, causes the processor to perform the operations (methods) described in embodiments of the invention. Such an arrangement of the present invention is typically provided as software, code and/or other data structures arranged or encoded on a computer readable medium, such as an optical medium (e.g., CD-ROM), floppy disk or hard disk, or other a medium such as firmware or microcode on one or more ROM or RAM or PROM chips, or as downloadable software images in one or more modules, shared databases, etc. The software or firmware or such configuration may be installed on a computing device to cause one or more processors in the computing device to perform the techniques described by embodiments of the present invention.

Furthermore, each functional module or each feature of the base station apparatus and the terminal apparatus used in each of the above embodiments may be implemented or performed by a circuit, which is typically one or more integrated circuits. Circuits designed to perform the functions described in this specification may include a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC) or a general purpose integrated circuit, a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, or discrete hardware components, or any combination thereof. A general purpose processor may be a microprocessor, or the processor may be an existing processor, controller, microcontroller, or state machine. The or each circuit may be configured by digital circuitry or may be configured by logic circuitry. In addition, when advanced technologies capable of replacing the current integrated circuits are presented due to advances in semiconductor technology, the present invention can also use integrated circuits obtained using the advanced technologies.

While the invention has been shown above in connection with the preferred embodiments thereof, it will be understood by those skilled in the art that various modifications, substitutions and changes may be made thereto without departing from the spirit and scope of the invention. Accordingly, the invention should not be limited by the above-described embodiments, but by the following claims and their equivalents.

Claims

1. A method performed by a user equipment, UE, comprising:

receiving a collaboration request in time slot n, wherein the collaboration request indicates a resource selection window start time slot offset

The method comprises the steps of,

determining a starting time slot of a resource selection window as

Wherein,,

L ^RESP is the length of the collaboration response window associated with the collaboration request.

2. A user equipment, comprising:

a processor; and

a memory in which instructions are stored,

wherein the instructions, when executed by the processor, perform the method according to claim 1.