WO2023078342A1 - Method executed by user equipment, and user equipment - Google Patents

Abstract

According to the present invention, a method executed by user equipment is provided, characterized by comprising: receiving collaboration information, which comprises an extended time resource indicator value etriv0 and a frequency resource bitmap frb0; and determining all different time slots (2) corresponding to a collaboration resource set (1) indicated in the collaboration information and frequency resources of the collaboration resource set (1) in each time slot, wherein (3), and for (4), if the value of the bit numbered (4) in frb0 is 1, a subchannel j in the time slot (5) overlaps one or more resources in the collaboration resource set (6), wherein (7) is the length of a corresponding resource selection window, and (8) is the number of subchannels of a corresponding resource pool.

Description

Method performed by user equipment and user equipment technical field

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

Background technique

In SL (sidelink, sidelink, or simply sidelink) communication (for example, when configured as SL resource allocation mode 2) can support UE (User Equipment, user equipment) inter-cooperation function, for example, two or more Coordination on resource allocation among multiple UEs. The inter-UE cooperation function needs to solve a series of problems, for example, how to determine two or more UEs related to the inter-UE cooperation; another example, how to determine one or more messages related to the inter-UE cooperation and their respective use Definition, configuration, mapping, transmission and reception of resources.

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

Contents of the invention

In order to solve at least part of the above problems, the present invention provides a method performed by user equipment and user equipment, by introducing extended time resource indicator values on the basis of frequency resource bitmaps, eliminating the need for In the indication manner, there is no overhead on time slots where resources need to be indicated, which improves the transmission efficiency of signaling related to cooperation between UEs.

According to the present invention, a method performed by user equipment is proposed, which is characterized by comprising: receiving cooperation information, which includes an extended time resource indicator value etriv ₀ and a frequency resource bitmap frb ₀ ; and determining the cooperation The collection of collaboration resources indicated in the message

Corresponding to all different time-hidden

and the collection of collaboration resources

frequency resources in each of said time slots. in,

and to

If the number in frb ₀ is

The bit value of is 1, then the time slot

The subchannel j in and the collaborative resource set

One or more resources in overlap. in,

is the length of the corresponding resource selection window, and

is the number of sub-channels in the corresponding resource pool.

In addition, according to the present invention, a user equipment is proposed, including: a processor; and a memory storing instructions, wherein the instructions execute the above method when executed by the processor.

Therefore, the present invention provides a method, by introducing an extended time resource indicator value on the basis of the frequency resource bitmap, eliminating the overhead on time slots that do not have resources to indicate in the general bitmap-based indication mode, The transmission efficiency of signaling related to inter-UE cooperation is improved.

Description of drawings

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

Fig. 1 is a flow chart showing a method executed by a user equipment according to Embodiment 1 of the present invention.

Fig. 2 shows a block diagram of a user equipment UE involved in the present invention.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. 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 known technologies that are not directly related to the present invention are omitted to prevent confusion to the understanding of the present invention.

The following uses the 5G (or called NR ("New Radio"), or called 5G NR) mobile communication system and its subsequent evolution version (for example, 5G Advanced) as an example application environment, and specifically describes multiple radios according to the present invention. implementation. However, it should be pointed out that the present invention is not limited to the following embodiments, but is applicable to more other wireless communication systems, such as communication systems after 5G and 4G mobile communication systems before 5G.

The term that the present invention provides may adopt different nomenclatures in LTE (Long Term Evolution, long-term evolution), LTE-Advanced, LTE-Advanced Pro, NR and subsequent communication systems, but adopts unified term in the present invention, in When applied to a specific system, it can be replaced by the term used in the corresponding system.

In all embodiments and implementations of the present invention, if not specified otherwise:

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

● Optionally, ng-eNB may refer to enhanced 4G base station. For example, ng-eNB can provide UE with the termination of E-UTRA user plane and control plane protocol; another example, ng-eNB can connect to 5GC (5G Core Network, 5G core network) through NG interface.

● Optionally, gNB may refer to a 5G base station. For example, the gNB can provide the termination of the NR user plane and control plane protocols to the UE; for another example, the gNB can connect to the 5GC through the NG interface.

• Optionally, "send" (send) and "transmit" (transmit) are interchangeable where applicable.

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

● Optionally, where applicable, any two of "in X", "in X" and "on X" can be interchanged; where X can be one or more carriers (e.g. SL Carrier), or one or more BWP (Bandwidth Part, bandwidth segment, such as SL BWP), or one or more resource pools (resource pool, such as SL resource pool), or one or more links (such as UL (uplink , uplink), or DL (downlink, downlink), and SL), or one or more channels (such as PSSCH (Physical Sidelink Shared Channel, Physical Sidelink Shared Channel)), or one or more sub Channel, or one or more RBG (Resource Block Group, resource block group), or one or more RB (Resource Block, resource block), or one or more "opportunities" (occasion, such as PDCCH (Physical Downlink Control Channel , physical downlink control channel) monitoring timing, and PSSCH transmission timing, and PSSCH receiving timing, and PSFCH (Physical Sidelink Feedback Channel, physical sidelink feedback channel) transmission timing, and PSFCH receiving timing, etc.), or One or more OFDM symbols, or one or more time slots, or one or more subframes, or one or more half frames, or one or more frames, or one or more other time domain and/or frequency domain and/or code domain and/or airspace resources, etc.

● Optionally, "higher layer(s), or upper layer(s)" may refer to a reference protocol layer (or reference protocol sublayer) above a given protocol stack One or more protocol layers or protocol sublayers. For example, for the physical layer, "higher layer" can refer to the MAC (Medium Access Control, Media Access Control) layer, or the RLC (Radio Link Control, Radio Link Control Protocol) layer, or PDCP (Packet Data Convergence Protocol, packet data convergence protocol ) layer, or PC5RRC (Radio Resource Control, radio resource control) layer, or PC5-S layer, or RRC layer, or V2X (Vehicle-to-everything, vehicle to everything) layer, or application layer, or V2X application layer, etc. Unless otherwise specified, the reference protocol layer (or reference protocol sublayer) refers to the physical layer.

● Optionally, "pre-configure" (pre-configure) may be pre-configured in a high layer (eg RRC layer) protocol. For example, a specific storage location in the UE is preset (for example, preset according to the specification of the high-level protocol), or a specific storage location accessible to the UE is preset (for example, preset according to the specification of the high-level protocol).

● Optionally, "configuration" may be configured through signaling in a high-level protocol. For example, it is configured for the UE through RRC signaling transmitted from the base station to the UE.

● Optionally, a "resource" may correspond to one or more parameters in the time domain (for example, the starting symbol of the resource; another example, the starting time slot of the resource; another example, the occupied resource number of symbols; another example, the number of time slots occupied by the resource; another example, the symbol where the resource is located (for example, when the resource only occupies one symbol); another example, the time slot where the resource is located (for example, when the resource only occupies one time slot)), and/or one or more parameters in the frequency domain (for example, the starting subchannel of the resource; another example, the starting resource block of the resource ; as another example, the starting subcarrier of the resource; as another example, the number of subchannels occupied by the resource; as another example, the number of resource blocks occupied by the resource; as another example, the number of subcarriers occupied by the resource number), and/or one or more parameters on the code domain (for example, the cyclic shift (cyclic shift) corresponding to the resource or the corresponding cyclic shift index; another example, the cyclic shift pair corresponding to the resource (cyclic shift pair) or the corresponding cyclic shift pair index), and/or one or more parameters on the airspace (for example, the layer corresponding to the resource (layer, or called MIMO (Multiple Input Multiple Output, multiple input Multiple output)layer)).

● Optionally, time domain (time-domain) resources may also be called time (time) resources.

● Optionally, frequency-domain (frequency-domain) resources may also be called frequency (frequency) resources.

Optionally, the resource block can refer to VRB (virtual resource block, virtual resource block), or PRB (physical resource block, physical resource block), or CRB (common resource block, public resource block), or defined in other ways resource blocks.

● Optionally, the numbering of frequency domain resources (for example, in the order from low frequency to high frequency) may start from 0. For example, if the number of subchannels (subchannels, or sub-channels) configured in a resource pool is

Then the set of subchannels in the resource pool can be expressed as a set of corresponding subchannel numbers as

As another example, a set of subcarriers in a resource block can be expressed as {0, 1, . . . , 11} by a set of corresponding subcarrier numbers.

● Optionally, the numbering of time-domain resources (for example, in chronological order) may start from 0. For example, for 30kHz SCS, the set of slots in a subframe can be denoted as {0,l} by the set of corresponding slot numbers.

Optionally, where applicable, "SCI" (Sidelink Control Information) may refer to an instance of an SCI format (such as a first-stage SCI format, or a second-stage SCI format), Or a combination of an instance of a first-stage SCI format (eg, SCI format 1-A) and a corresponding instance of a second-stage SCI format (eg, SCI format 2-A). For example, in a received SCI format 1-A, each field corresponds to a certain value. As another example, in an SCI format 1-A used for transmission (or to be transmitted), each field corresponds to a determined (or to be determined) value. 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 certain value, and each field of the SCI format 2-A Each field corresponds to a certain value.

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

◆PSSCH transmission.

◆PSCCH (Physical Sidelink Control Channel, physical sidelink control channel) and corresponding (or associated) PSSCH transmission.

◆ PSCCH or corresponding (or associated) PSSCH transmission.

◆PSFCH transmission.

◆S-SS/PSBCH (Sidelink-Synchronization Signal/Physical Sidelink Broadcast Channel, Sidelink-Synchronization Signal/Physical Sidelink Broadcast Channel) transmission. (Alternatively known as S-SSB transmission)

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

● Optionally, "resource pool" may be replaced with "SL resource pool" when applicable.

• Optionally, "PSSCH transmission" may be replaced with "PSCCH and/or corresponding (or associated) PSSCH transmission" where applicable.

• Optionally, an "SL slot" is a slot that can belong to a certain resource pool. For example, it is recorded in a predefined cycle (such as a SFN (System Frame Number, system frame number) cycle, and a DFN (Direct Frame Number, direct frame number) cycle; for example, the duration is 10240 milliseconds; for example, from SFN= 0 to SFN=1023, and for example from DFN=0 to DFN=1023), the set of numbers of all time slots (for example, called "physical time slots") is

(where μSL is the subcarrier spacing configuration of the corresponding SL carrier or SL BWP,

Then the set of "SL time slots" (for example denoted as

where T _max is the SL slot set

The number of elements in) can be the set of remaining time slots after excluding the time slots in the following sets in the physical time slot set T _all :

◆S-SSB time slot set: a set of time slots configured with S-SSB. Record the number of time slots in the S-SSB time slot set as N _{S_SSB} .

◆Non-SL slot set: SL symbols configured in the corresponding SL BWP (for example, slave symbols

start of continuation

symbols, of which

and

In the time slot configured by parameters sl-StartSymbol and sl-LengthSymbols respectively), at least one symbol is not configured as a UL symbol. Note that the number of time slots in the S-SSB time slot set is N _nonSL .

◆Reserved time slot set: After excluding the time slots in the S-SSB time slot set and the time slots in the S-SSB time slot set from the physical time slot set T _all , the remaining time slots are scheduled The increasing order of the slot index is

Then if

then time slot

Belongs to the set of reserved slots. Among them, m=0, 1, ..., N _resumed -1,

Wherein L _bitmap is a bitmap of high-level configuration (for example, one for determining the time slot set

The length of the bitmap which slots belong to a resource pool in .

• Optionally, a "logical slot" is a slot within a given resource pool. For example, record resource pool u in a predefined cycle (such as a SFN cycle, and a DFN cycle; for example, the duration is 10240 milliseconds; for example, from SFN=0 to SFN=1023, and for example from DFN=0 to DFN= 1023) The set of time slots is

time slot

and slots

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

● Optionally, the offset between time slot _t1 and time slot _t2 (or called the offset of time slot _t2 relative to time slot _t1 , or called from time slot _t1 to time slot _t2 offset) can be written as Δ(t ₁ , t ₂ ). Optionally, if Δ(t ₁ , t ₂ )>0, then the time slot t ₁ is earlier than the time slot t ₂ ; alternatively, if Δ(t ₁ , t ₂ )<0, then the time slot t 2 is earlier than the time slot t 2 ; The time slot t ₁ is later than the time slot t ₂ ; optionally, if Δ(t ₁ , t ₂ )=0, the time slot t ₁ is equal to the time slot t ₂ . Δ(t ₁ , t ₂ ) can be defined in one of the following ways:

◆Physical time slot offset. For example, Δ(t ₁ , t ₂ ) may be the number of the time slot t ₂ in the physical time slot set T _all and the number of the time slot t ₁ in the physical time slot set T _all Difference. Wherein, the time slot _t1 and the time slot _t2 may belong to the same resource pool, or belong to two different resource pools, or do not belong to any resource pool, or one of them belongs to a certain resource pool and the other does not. Belongs to any resource pool.

◆SL time slot offset. For example, Δ(t ₁ , t ₂ ) may be the time slot t ₂ in the SL slot set

The subscripts in the SL slot set with the slot t ₁ in the

The difference of the subscripts in . Wherein, both the time slot _t1 and the time slot _t2 belong to the "SL time slot"; the time slot _t1 and the time slot _t2 may belong to the same resource pool, or belong to two different resources pools, or do not belong to any resource pool, or one of them belongs to a resource pool and the other does not belong to any resource pool.

◆Logical time slot offset. For example, for resource pool u, Δ(t ₁ , t ₂ ) can be the time slot t ₂ in the set

The subscripts in the set with the slot t ₁ in the

The difference of the subscripts in . in,

is the collection

The number of elements in ; both the time slot t ₁ and the time slot t ₂ belong to the resource pool u.

◆ The slot offset within a given slot set. For example, remember a predefined cycle (such as a SFN cycle, and a DFN cycle; such as a duration of 10240 milliseconds; such as from SFN=0 to SFN=1023, and such as from DFN=0 to DFN=1023) A set of time slots is

Then Δ(t ₁ , t ₂ ) may be the difference between the subscript of the time slot t ₂ in the set T _any and the subscript of the time slot t ₁ in the set T _any . in,

is the number of elements in the set T _any ; both the time slot t ₁ and the time slot t ₂ belong to the set T _any .

The allocation of resources related to SL operation (such as time domain resources, such as frequency domain resources, such as code domain resources, and such as air domain resources) may include:

● Mode 1 (Mode 1, or resource allocation mode 1, Resource Allocation Mode 1, or direct resource allocation mode 1, Sidelink Resource Allocation Mode 1): the base station schedules resources for SL transmission.

● Mode 2 (Mode 2, or resource allocation mode 2, Resource Allocation Mode 2, or direct resource allocation mode 2, Sidelink Resource Allocation Mode 2): UE determines the resources used for SL transmission (that is, the base station does not participate in the resources used for SL transmission scheduling). For example, a UE performing an SL transmission operation autonomously determines resources for SL transmission.

Optionally, in SL resource allocation mode 2, when the UE needs to select (or reselect) resources for initial transmission and/or retransmission for one or more transport blocks to be transmitted, the first The resource subset determination process (or called "the first resource set determination process") determines a resource subset (for example, denoted as resource subset S _A , or resource set S _A ), and then based on the resource subset S _A performs resource selection or resource reselection. For example, one or more resources may be selected from the resource subset _SA for a transport block (or each of a plurality of transport blocks) for initial transmission or retransmission of the transport block, wherein, Each initial transmission or retransmission may be a PSSCH/PSCCH transmission (such as PSSCH transmission, or PSCCH transmission, or PSSCH transmission and PSCCH transmission multiplexed in the same resource). Optionally, when selecting resources from the resource subset _SA , a "random selection" manner may be used, for example, a resource is randomly selected from the resource subset _SA in an equal-probability manner.

Optionally, a specific way of triggering the process of determining the first subset of resources (such as selected parameters, the purpose of triggering the process of determining the first subset of resources, etc.) and/or determining the process of the first subset of resources The combination of the specific execution steps of the process and/or the manner of selecting resources from the resource subset _SA corresponds to a "resource selection mechanism". Optionally, if the UE uses a certain resource selection mechanism in the SL resource allocation mode 2, it can be said that the UE executes the SL resource allocation mode 2 based on the resource selection mechanism.

Optionally, the process of determining the first resource subset may be performed by a physical layer entity.

Optionally, the process of determining the first resource subset may be triggered by a physical layer entity, or by a high-layer entity (such as a MAC layer entity), or in other ways. Specifically, for example, if the process of determining the first resource subset is triggered by a high-level entity, the high-level entity may request the physical layer entity to determine a resource subset from which resources can be selected (that is, the resource subset S _A ), and the corresponding Specifically, the physical layer entity may report it to the high-level entity after determining the resource subset S _A.

Optionally, the process of determining the first resource subset is related to parameters in a parameter set (for example, denoted as _PA ). For example, a certain step in the process of determining the first resource subset uses values of one or more parameters in the parameter set _PA . Optionally, each of some or all parameters in the parameter set _PA may be determined by a high-level entity of the UE, or determined by a physical layer entity of the UE, or be predefined or configured or pre-configured or determined according to one or more predefined or configured or preconfigured parameters, or provided when the process of determining the first resource subset is triggered.

Optionally, the parameter set _PA may include one or more of the following:

● A resource pool for resource selection (for example, denoted as u). For example, the resource subset _SA may be a subset of a candidate resource set in the resource pool u.

• Priority (eg layer one priority, or physical layer priority). For example, the priority may be a priority associated with PSCCH and/or PSSCH transmission on the selected resource, for example, the corresponding priority value may be denoted as prio _TX .

• Parameters related to the size of the resource. For example, the "resource size" may include the number of subchannels (such as the number of continuous subchannels) occupied by each resource, or the number of subchannels corresponding to PSCCH and/or PSSCH transmission on the resource. number, for example recorded as L _subCH . Each resource can be defined in one time slot (in this case, the resource can be called a single-slot resource, single-slot resource).

● A resource reservation interval (resource reservation interval, RRI), for example marked as P _{rsvp_TX} .

• A set of resources for re-evaluation operations, eg denoted as (r ₀ , r ₁ , t ₂ , . . . ).

● A set of resources for pre-emption operations, eg denoted as (r' ₁ , r' ₁ , r' ₂ , . . . ).

● Parameters related to the resource selection window. For example, the resource selection window may be a time window corresponding to a time interval [n+T ₁ , n+T ₂ ], where n is the time slot that triggers the process of determining the first resource subset, and T ₁ and T ₂ may be two values determined by the UE and meeting certain conditions. For example, T ₁ may be related to the processing capability of the UE (e.g.,

in

may be a predefined parameter related to the subcarrier spacing of the corresponding SL BWP configuration). T ₂ can be related to the remaining packet delay budget (remaining packet delay budget, for example, its value is recorded as

) related to, for example,

Where T _2min may be a predefined or configured or preconfigured value related to prio _TX .

Optionally, in the process of determining the first resource subset, the way to determine the resource subset _SA may be to first initialize it as a candidate resource set (for example, the first candidate single-slot resource set) , and then perform zero or one or more exclusion operations on it to obtain the final resource subset S _A , wherein, in each exclusion operation, zero or one or more resources are excluded from the current resource subset S _A Resources that meet certain conditions. Wherein, the first candidate single-slot resource set may be a set of resources corresponding to L _subCH consecutive subchannels in a certain time slot in the resource selection window in the resource pool u (e.g. written as

), or the set

A subset of (for example denoted as

For example, the subset

does not include resources in the time slots in the resource selection window that do not have corresponding PSSCH DMRS patterns). Optionally, a slot in

In , the candidate single-slot resources occupying the sub-channel set {x, x+1, ..., x+L _subCH -1} can be written as

Optionally, the exclusion operation performed on the set _SA may include one or more of the following:

• Resources on which SL transmission is not possible due to transmission capability limitations of the UE. For example, due to the limitation of the number of simultaneous transmissions supported by the UE, when the UE transmits on other carriers, it cannot perform SL transmission on the SL carrier corresponding to the set _SA . For another example, due to the limitation of the combination of carriers supported by the UE, when the UE performs transmission on other carriers, SL transmission cannot be performed on the SL carrier corresponding to the set _SA . In another example, because the time required for tuning to a certain resource in the set _SA exceeds the capability of the UE, the UE cannot perform SL transmission on the resource.

● Resources that meet certain conditions (for example, resources that have been reserved by other UEs) identified by the UE through sensing and/or other operations. Specifically, for example, by monitoring (monitoring) or detecting (detecting) or receiving (receiving) resource reservation information sent on the SL link (for example, sent by other UEs) (for example, resource reservation information in SCI), and then determine The set of resources that have been reserved and/or the set of resources that cannot be determined to be reserved and/or the set of resources that may cause conflicts and/or the set of resources that have been allocated and/or the set of resources that are not available for allocation, etc. Optionally,

The "resources reserved by other UEs" include periodically reserved resources indicated by the "resource reservation interval" field in the SCI.

Optionally, in the process of determining the first resource subset, the manner of determining the resource subset S _A may be to first initialize it as an empty set, and then perform zero or one or more additions to it After the operation, the final resource subset S _A is obtained, wherein, in each adding operation, zero or one or more resources satisfying certain conditions are added to the current resource subset S _A .

If a resource selection mechanism identifies resources that need to be excluded through a sensing operation, the resource selection mechanism can be considered as a "sensing-based resource selection mechanism". Wherein, the sensing operation may be "full sensing" (full sensing, or simply referred to as "sensing", sensing), for example, the UE must monitor the sensing window (for example, time interval

corresponding time window, and/or in a time window defined in other ways) that belong (or may belong) to said resource pool u, except those time slots that cannot be monitored due to some exceptions (for example, due to semi-double all time slots except those time slots which cannot be listened to while performing SL transmission) and/or some special time slots (e.g., time slots which cannot be used to transmit PSCCH and/or PSSCH); where T ₀ can be passed Configure high-level parameters (such as the 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 "full-sensing-based resource selection".

The sensing operation may also be "partial sensing", for example, the UE only needs to monitor part of the time slots belonging to (or may belong to) the resource pool u within the sensing window (for example, periodically part of the time slot that occurs). The corresponding resource selection mechanism may be called "resource selection mechanism based on partial sensing", or "resource selection based on partial sensing", or "partial sensing" for short.

If a resource selection mechanism does not involve (or does not perform) a sensing operation, then the resource selection mechanism can be considered as a "non-sensing-based resource selection mechanism". For example, the resource subset S _A may be equal to the full set of first candidate single-slot resources, or equal to exclude some special resources (for example, cannot be used to transmit PSCCH/ resources in the time slots of the PSSCH; another example, resources on which SL transmission cannot be performed due to the transmission capability limitation of the UE).

Optionally, in the non-sensing-based resource selection mechanism, if the UE uses a "random selection" method to select resources from the resource subset S _A (for example, select resources from the resource subset S A in an equal probability manner Random selection of a resource in _A ), the corresponding resource selection mechanism may be called "random resource selection" (random resource selection), or simply "random selection".

Inter-UE coordination (inter-UE coordination) functions can be supported in SL communication (e.g. in SL resource allocation mode 2), e.g. resource allocation and/or reservation and/or indication between two or more UEs Collaborate on resources to improve resource allocation and/or reservation and/or indication efficiency, and/or reduce resource allocation and/or reservation and/or indication conflicts, and/or mitigate and/or eliminate interference, and so on. Specifically, for example, a UE (for example, called UE-A) may send a message to one or more other UEs (for example, if there is only one other UE, it may be called UE-B; for another example, if there are more than one other UE , which can be referred to as UE-B1, UE-B2, ...) respectively transmit "inter-UE coordination information" (inter-UE coordination information) or "coordination information", wherein the coordination information can be explicitly Or implicitly indicate (or correspond to, or associate with) one or more resource sets (for example, each such resource set is referred to as a "collaborative resource set", and correspondingly, each resource in a collaborative resource set is called a "Collaboration Resource").

Optionally, a UE may support one or more coordination schemes (coordination schemes), wherein, in different coordination schemes, the manner of determining the coordination information and/or the content of the coordination information (especially the content of the coordination resource set) and The condition for triggering the transmission of the cooperation information and/or the manner of transmitting the cooperation information may be different.

Optionally, in a cooperation scheme (for example, called the first cooperation scheme), the resources in a cooperation resource set may be "preferred resources", and correspondingly, the cooperation resource set may be called "preferred resources". Resource set", the cooperation information carrying a "preferred resource set" may be called "preferred co-ordination information" (preferred co-ordination information, or "preferred inter-UE co-ordination information", preferred inter-UE co-ordination information). Wherein, a priority resource indicated by UE-A to UE-B may be a resource that UE-A wants UE-B to use (or preferentially use), for example, when the resource is used for UE-B to When the UE-A (or other UE) transmits the PSCCH and/or PSSCH, the UE-A hopes that the UE-B will use the resource preferentially. After receiving the priority resource set, the UE-B may perform resource selection or resource reselection based on one or more resource sets, for example, the one or more resource sets may include the cooperative resource set (eg called collection

), and/or the resource set identified by the UE-B based on its own sensing results (for example, called the set S _SNS ); specifically, for example, if the set

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

The intersection with said set S _SNS performs resource selection or resource reselection.

Optionally, in the first cooperation scheme, the resources in a cooperative resource set may be "non-preferred resources", and accordingly, the cooperative resource set may be called a "non-preferred resource set". ", the cooperation information carrying a "non-preferred resource set" can be called "non-preferred co-ordination information" (non-preferred co-ordination information, or "non-preferred inter-UE co-ordination information", non-preferred inter-UE co -ordination information). Wherein, a non-priority resource indicated by UE-A to UE-B may be a resource that UE-A wishes UE-B not to use (or preferably not to use, or preferentially excluded), for example, when the resource When used for PSCCH and/or PSSCH transmission from the UE-B to the UE-A (or other UE), the UE-A hopes that the UE-B will preferentially exclude the resource. After receiving the coordinated resource set, the UE-B may perform resource selection or resource reselection based on one or more resource sets. For example, the one or more sets of resources may include the set of non-preferred resources (eg, referred to as set

), and/or the resource set S _SNS identified by the UE-B based on its own sensing results; specifically, for example, the UE-B is performing resource selection or resource reselection (for example, when based on the set When _SNS performs resource selection or resource reselection), it can exclude the set

Resources that overlap resources in .

Optionally, the first cooperation scheme may be configured or preconfigured to be enabled or disabled. When the first cooperation scheme is configured or preconfigured to be enabled, the UE-A and/or UE-B enables the first cooperation scheme.

Optionally, 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 a transport block transmitted to UE-B, UE-A may trigger the transmission of cooperation information to UE-B.

Optionally, the coordination information may be a response to a "coordination request" (coordination request, or "explicit coordination request", explicit coordination request, or "explicit request", explicit request), or by the The "Collaboration Request" trigger described above. For example, UE-B transmits a cooperation request to UE-A, which is used to request a set of cooperative resources (for example, requesting a set of priority resources; another example, requesting a set of non-priority resources); as a response to the cooperation request, The UE-A may determine a corresponding set of coordination resources, and include it in the coordination information and transmit it to the UE-B.

If UE-A receives a cooperation request from UE-B at time slot t _CR , the UE-A may start a time window (such as a cooperation request response window) at time slot t _{CRRW, 0} , specifically, For example, transmit the cooperation information to the UE-B within the time window corresponding to the time interval [t _{CRRW, 0} , t _{CRRW, 1} ]. Wherein, the time slot _{tCRRW, 0} may be offset relative to the time slot _tCR

The time slot obtained after time slots, that is,

in

It can represent a "coordination request response window start slot offset",

Correspondingly, the UE-B may receive the cooperation information within the cooperation request response window.

Optionally, if the UE-A cannot transmit the cooperation information within the cooperation request response window, no longer schedule the transmission of the cooperation information (or cancel the transmission of the cooperation information). Specifically, for example, the UE-A no longer selects (or reselects) resources for the transmission of the cooperation information.

Optionally, if the UE-B cannot receive the cooperation information within the cooperation request response window, no longer schedule the reception of the cooperation information (or cancel the reception of the cooperation information).

Optionally, in the first cooperation scheme, UE-A may determine a resource subset (for example, denoted as resource subset

or resource collection

), and subset the resource

As a cooperative resource set (for example, a priority resource set, or a non-priority resource set), it is included in the cooperation information and transmitted to UE-B.

Optionally, when UE-A determines the resource subset

After that, first in the resource subset

Zero or one or more resources are excluded from the collaboration information to satisfy the payload size constraints in the collaboration information before subsetting the resources

It is included in the cooperation information and transmitted to UE-B. At this time, "cooperative resource set" (such as "priority resource set", and "non-priority resource set") may refer to the resource subset before performing the exclusion operation

or refers to the subset of resources after performing the exclusion operation

Optionally, in the process of determining the second subset of resources, UE-A may execute one or more steps in the process of determining the first subset of resources (or, execute the entire first subset of resources identify the process, but replace one or more of the conditions and/or parameters and/or steps therein). Wherein, one or more conditions and/or parameters and/or steps in the process of determining the first resource subset may be related to the UE-A performing the selection (or reselection) of resources for the transport block to be transmitted by itself. The process of determining the first resource subset described above is different.

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

(for example, when the resource subset

is a priority resource set) can be initialized as a candidate resource set (for example, the first candidate single-slot resource set), and then perform zero or one or more exclusion operations on it to obtain the final A subset of resources for

Among them, in each exclusion operation, in the current resource subset

Exclude zero or one or more resources that meet certain criteria.

Optionally, in the process of determining the second resource subset, for the resource subset

(for example, when the resource subset

is a priority resource set), the exclusion operation performed may be to overlap with the resources reserved in the received SCI (such as SCI format 1-A) and satisfy a certain RSRP (Reference Signal Received Power, reference signal received power) condition and/or priority condition resources from the current subset of resources

excluded.

Optionally, in the process of determining the second resource subset, for the resource subset

(for example, when the resource subset

is a priority resource set) the exclusion operation performed may be to remove the resources in the time slots in which it is not desired to perform SL reception due to half-duplex constraints

(optionally, if UE-A performs the second resource subset determination process in order to determine the cooperation information to be transmitted to UE-B, when UE-A is one or more transport blocks of UE-B The exclusion operation is performed when the UE is received).

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

(for example, when the resource subset

is a non-priority resource set) can be initialized as an empty set first, and then perform zero or one or more addition operations on it to obtain the final resource subset

Among them, in each addition operation, in the current resource subset

By adding zero or one or more resources that meet certain conditions.

Optionally, in the process of determining the second resource subset, for the resource subset

(for example, when the resource subset

is a non-priority resource set), the adding operation performed may be to add resources reserved in the received SCI (such as SCI format 1-A) and satisfy certain RSRP conditions and/or priority conditions to the current A subset of resources for

Optionally, in the process of determining the second resource subset, for the resource subset

(for example, when the resource subset

is a non-preferred resource set) the addition operation performed can be to add resources in the time slots in which it is not expected to perform SL reception due to half-duplex constraints to the current resource subset

(Optionally, if UE-A performs the second resource subset determination process in order to determine the cooperation information transmitted to UE-B, when UE-A is the receiving UE of one or more transport blocks of UE-B when performing the add operation).

Optionally, part or all of the collaboration information may be included in the control information. Wherein, the control information may be physical layer control information, or high layer control information. For example, part or all of the collaboration information may be included in the first-stage SCI. As another example, part or all of the cooperation information may be included in the second-stage SCI. For another example, part or all of the information in the collaboration information may be included in SFCI (sidelink feedback control information, sidelink feedback control information). For another example, part or all of the information in the coordination information may be included in other control information (for example, SCCI, sidelink coordination control information, sidelink coordination control information).

Optionally, part or all of the information in the cooperation information may be included in high-layer (such as MAC layer, or RRC layer) signaling. For example, part or all of the information in the collaboration information may be included in a MAC CE (MAC Control Element, MAC Control Element). For another example, part or all of the cooperation information may be included in one RRC message.

Optionally, part or all of the information in the cooperation information may be carried by a physical layer channel (or the transmission of a physical layer channel), or carried by a physical layer signal (or the transmission of a physical layer signal). For convenience, the physical layer channel/signal may be referred to as "Physical Sidelink Coordination Information Channel/Signal, PSCICHS". Optionally, depending on the type of cooperation, the PSCICHS can be a different physical layer channel or signal, for example, for the priority resource indication and/or non-priority resource indication, the PSCICHS can be PSCCH, or PSSCH, or PSCCH+PSSCH, or PSFCH , or an other physical layer channel, or a physical layer signal.

Optionally, a resource (such as a time domain and/or frequency domain and/or code domain and/or air domain resource) occupied by a PSCICHS (or a PSCICHS transmission) may be referred to as a "PSCICHS resource" (PSCICHS resource). Optionally, a PSCICHS resource (or the time domain resource corresponding to the PSCICHS resource, such as the time slot where the PSCICHS resource is located, and one or more symbols where the PSCICHS resource is located) can be called a "PSCICHS opportunity" (PSCICHS occasion), or "PSCICHS occasion resource" (PSCICHS occasion resource), or "PSCICHS resource occasion" (PSCICHS resource occasion); for a UE that transmits PSCICHS, a PSCICHS resource (or the PSCICHS resource corresponding A time domain resource, such as the time slot where the PSCICHS resource is located, and one or more symbols where the PSCICHS resource is located) may be called a "PSCICHS transmission resource" (PSCICHS transmission resource), or "PSCICHS transmission opportunity" ( PSCICHS transmission occasion), or "PSCICHS transmission occasion resource" (PSCICHS transmission occasion resource), or "PSCICHS transmission resource occasion" (PSCICHS transmission resource occasion); The corresponding time domain resource, such as the time slot where the PSCICHS resource is located, and one or more symbols where the PSCICHS resource is located) can be called a "PSCICHS reception resource" (PSCICHS reception resource), or "PSCICHS reception opportunity " (PSCICHS reception occasion), or "PSCICHS reception occasion resource" (PSCICHS reception occasion resource), or "PSCICHS reception resource occasion" (PSCICHS reception resource occasion).

Optionally, PSCICHS resources may be determined through sensing and/or resource selection mechanisms. For example, a PSCICHS may be a PSCCH and/or a PSSCH.

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

Optionally, a PSCICHS reception can be associated with a priority. The priority may be represented by a priority value, for example, the value set of the priority value may be {0, 1, ..., 7}; as another example, the value set of the priority value may be is {1, 2, ..., 8}. Optionally, a higher priority value indicates a lower priority (or "priority order"). Optionally, a lower priority value indicates a lower priority (or "priority order"). Alternatively, without causing confusion, the priority received by the PSCIHS may be referred to as the priority of the PSCIHS.

Optionally, the priority levels associated with PSCICHS transmission and PSCICHS reception may be defined in the same manner. For example, the value ranges of the priority of a PSCICHS transmission and the priority of a PSCICHS reception can be the same, and can be compared with each other (for example, due to the limitation of UE capabilities, only one operation can be performed between a PSCICHS transmission and a PSCICHS reception , the higher-priority operation is performed). Optionally, the ways of defining the priorities associated with PSCICHS transmission and PSCICHS reception may be different.

Optionally, the method of determining the priority value corresponding to the priority associated with the PSCICHS transmission and the PSCICHS reception may be the same or different.

Optionally, the cooperation information may be transmitted and/or received only when the inter-UE cooperation function is enabled. Wherein, the manner of enabling (or disabling) the inter-UE cooperation function may include a semi-static manner (eg configured or pre-configured through a high-level protocol), and/or a dynamic manner (eg indicated in the SCI).

Optionally, the collaboration request can be included in the control information. Wherein, the control information may be physical layer control information, or high layer control information. For example, part or all of the information in the cooperation request may be included in the first-stage SCI. As another example, part or all of the information in the cooperation request may be included in the second-stage SCI. As another example, part or all of the information in the collaboration request may be included in the SFCI. As another example, part or all of the information in the cooperation request may be included in other control information (such as SCCI).

Optionally, part or all of the information in the cooperation request may be included in a high-level (such as MAC layer, or RRC layer) signaling. For example, part or all of the information in the collaboration request can be included in one MAC CE. As another example, part or all of the information in the cooperation request may be included in one RRC message.

Optionally, part or all of the information in the cooperation request may be carried by a physical layer channel (or a transmission of the physical layer channel), or carried by a physical layer signal (or a transmission of the physical layer signal). For convenience, the physical layer channel/signal may be referred to as a "physical sidelink coordination request channel/signal" (Physical Sidelink Coordination Request Channel/Signal, PSCRCHS). Optionally, depending on the type of cooperation, PSCRCHS can be different physical layer channels or signals, for example, for priority resource indication and/or non-priority resource indication, PSCRCHS can be PSCCH, or PSSCH, or PSCCH+PSSCH, or PSFCH , or another physical layer channel, or a physical layer signal; for resource conflict indication, the PSCRCHS may be PSFCH, or another physical layer channel, or a physical layer signal.

Optionally, a resource (such as a time domain and/or frequency domain and/or code domain and/or space domain resource) occupied by a PSCRCHS (or a PSCRCHS transmission) may be referred to as a "PSCRCHS resource" (PSCRCHS resource). Optionally, a PSCRCHS resource (or the time domain resource corresponding to the PSCRCHS resource, such as the time slot where the PSCRCHS resource is located, or one or more symbols where the PSCRCHS resource is located) can be called a "PSCRCHS opportunity" (PSCRCHS occasion), or "PSCRCHS occasion resource" (PSCRCHS occasion resource), or "PSCRCHS resource occasion" (PSCRCHS resource occasion); for a UE transmitting PSCRCHS, a PSCRCHS resource (or the PSCRCHS resource corresponding A time domain resource, such as the time slot where the PSCRCHS resource is located, and one or more symbols where the PSCRCHS resource is located) may be called a "PSCRCHS transmission resource" (PSCRCHS transmission resource), or "PSCRCHS transmission opportunity" ( PSCRCHS transmission occasion), or "PSCRCHS transmission occasion resource" (PSCRCHS transmission occasion resource), or "PSCRCHS transmission resource occasion" (PSCRCHS transmission resource occasion); for a UE receiving PSCRCHS, a PSCRCHS resource (or the PSCRCHS resource The corresponding time domain resource, such as the time slot where the PSCRCHS resource is located, and one or more symbols where the PSCRCHS resource is located) can be called a "PSCRCHS reception resource" (PSCRCHS reception resource), or "PSCRCHS reception opportunity "(PSCRCHS reception occasion), or "PSCRCHS reception occasion resource" (PSCRCHS reception occasion resource), or "PSCRCHS reception resource occasion" (PSCRCHS reception resource occasion).

Optionally, PSCRCHS resources may be determined through sensing and/or resource selection mechanisms. For example, a PSCRCHS may be a PSCCH and/or a PSSCH.

[Example 1]

The method performed by the user equipment according to Embodiment 1 of the present invention will be described below with reference to FIG. 1 .

Fig. 1 is a flow chart showing a method executed by a user equipment according to Embodiment 1 of the present invention.

As shown in FIG. 1 , in Embodiment 1 of the present invention, steps performed by a user equipment UE (for example, called UE-B) include: step S101 and step S103.

Specifically, in step S101, obtain a collaboration resource set (for example, denoted as

) related instructions.

Optionally, the set of collaborating resources

Relevant instructional information may be included in the collaboration information. Wherein, optionally, the collaboration information may only include the set of collaboration resources

Instructions about, or containing the set of resources associated with the collaboration

related instructions and other information.

Optionally, the cooperation information may be transmitted by another UE (for example, denoted as UE-A). For example, by receiving the SL transmission (for example, PSCCH and/or PSSCH transmission) of the UE-A, the cooperation information carried therein is acquired. Optionally, the cooperation information may be a response to a cooperation request previously transmitted by the UE to the UE-A.

Optionally, the cooperation information may be included in physical layer signaling (such as a first-stage SCI format, another example of a second-stage SCI format, another example of a first-stage SCI format and a corresponding second-stage SCI format combination), or included in high-level signaling (such as RRC messages, and MAC CE).

Optionally, the set of collaborating resources

The relevant indication information corresponds to one or more fields of the signaling.

Optionally, the indication information includes one or more Resource Indication Combinations (Resource Indication Combination, RIC), for example, respectively denoted as

Wherein N _RIC is the number of resource indication combinations.

Optionally, N _RIC is a predefined or configured or preconfigured value, or is determined by one or more predefined or configured or preconfigured parameters.

Optionally, _NRIC is indicated by a field in the indication information.

Optionally, N _RIC is determined by the number of RICs actually included in the indication information.

Optionally, for j ∈ {0, 1, ..., N _RIC -1}, k ∈ {0, 1, ..., N _RIC -1}, and j≠k, RIC _j and RIC _k The definitions can be the same, or different. specifically,

The definitions of can be all the same, some of them the same, or all of them different.

Alternatively, for k ∈ {0, 1, ..., N _RIC -1}, RIC _k can be defined as one of the following:

● One TRIV (Time Resource Indicator Value, time resource indicator value), one FRIV (Frequency Resource Indicator Value, frequency resource indicator value), and one RRIV (Resource Reservation Interval Value, resource reservation interval value). For example, it is recorded as RIC _k =<triv _k , friv _k , rriv _k >, where rriv _k may be used to indicate the cycle (or interval) of repeated appearance of the time-frequency resources indicated by triv _k and friv _k .

● A TRIV and a FRIV. For example, it is written as RIC _k =<triv _k , friv _k >.

● A TRIV. For example, it is written as RIC _k =<triv _k >.

● A FRIV. For example, it is written as RIC _k =<friv _k >.

Optionally, for k ∈ {0, 1, ..., N _RIC -1}, the way of defining and/or determining RIC _k may be related to the collaboration resource set

related to the type. For example, if the collaboration resource set

is a priority resource set, then RIC _k =<triv _k , friv _k >. As another example, if the collaboration resource set

is a non-priority resource set, then RIC _k =<triv _k , friv _k , rriv _k >.

Optionally, the indication information includes a Time-Frequency Resource Bitmap (Time-Frequency Resource Bitmap, TFRB). For example, the value of the TFRB is recorded as tfrb ₀ .

Optionally, the indication information includes an ETRIV (Extended Time Resource Indicator Value, extended time resource indicator value). For example, the value of ETRIV is denoted as etriv ₀ .

Optionally, the indication information includes a FRB (Frequency Resource Bitmap, frequency resource bitmap). For example, the value of the FRB is recorded as frb ₀ .

In addition, in step S103, according to the indication information, the set of cooperative resources is determined

and/or one or more parameters of the resources within it. For example, determining the collaborative resource set

By the number of resources (for example, recorded as

); As another example, determining the collaborative resource set

Time and/or frequency parameters of each resource in (for example, the time slot where the resource is located; another example, the starting subchannel corresponding to the resource; another example, the number of subchannels corresponding to the resource) .

Optionally, the collaboration resource set

The number of sub-channels (for example, denoted as u) of the resource pool where the resources in

) may be a predefined or configured or preconfigured value, or determined by one or more predefined or configured or preconfigured parameters.

Optionally, the collaboration resource set

Each resource in corresponds to one or more subchannels (eg, one or more consecutive subchannels) in a time slot.

Optionally, the collaboration resource set

All resources in belong to the same slot.

Optionally, the collaboration resource set

All resources in belong to different time slots.

Optionally, the collaboration resource set

Two different resources in can belong to the same time slot, or belong to different time slots. For example, the collection of collaborative resources

Among the three resources in , the first resource corresponds to the time slot

The set of subchannels in {0, 1, 2, 3}, the second resource corresponds to the time slot

The set of subchannels in {4, 5, 6, 7}, the third resource corresponds to the time slot

The set of subchannels {2, 3, 4, 5} in , where i ₀ ≠i ₁ .

Optionally, the collaboration resource set

The resources in the

different time slots (for example, recorded in chronological order as

and

). where, optionally,

Optionally, yes

It can correspond to a physical time slot, or an SL time slot, or a logical time slot.

Optionally, yes

time slot

can be expressed as starting from a reference slot (for example denoted as

) to the time slot

offset, such as

Among them, the reference time slot

can correspond to a physical time slot (for example, when the time slot

corresponds to a physical time slot), or an SL time slot (for example, when the time slot

corresponding to an SL time slot), or a logical time slot (such as when the time slot

corresponding to a logical time slot).

Optionally, the reference time slot

Can be the set of collaboration resources

The starting time slot of the corresponding resource selection window.

Optionally, the reference time slot

It may be related to the time slot where the SL transmission carrying the cooperation request is located.

Optionally, the reference time slot

It may be indicated in the cooperation request, or indicated in the cooperation information, or determined in other ways.

Optionally,

or

in

(or

or

) may be a predefined or configured or preconfigured value, or determined by one or more predefined or configured or preconfigured parameters, or indicated in the cooperation request, or indicated in the cooperation information, or Determined by other means. Optionally, the

can be combined with the collaboration resource

The length of the corresponding resource selection window is related. For example, the

Equal to the Collaboration Resource Collection

The length of the corresponding resource selection window.

Optionally, for k ∈ {0, 1, ..., N _RIC -1}, RIC _k indicates the collaborative resource set

A subset of (for example denoted as

in

is a subset of the resource

number of resources in ). right

Remember the resource subset

resources in

The time slot is

The starting subchannel is

Alternatively, for j ∈ {0, 1, ..., N _RIC -1}, k ∈ {0, 1, ..., N _RIC -1}, and j≠k,

and

Can be equal, or not equal.

Alternatively, for k ∈ {0, 1, ..., N _RIC -1},

Can be a predefined or configured or preconfigured value, or determined by one or more predefined or configured or preconfigured parameters. Specifically, for example, for k ∈ {0, 1, ..., N _RIC -1},

is a constant (e.g.

or

or

); Another example, for k ∈ {0, 1, ..., N _RIC -1},

Can be configured or preconfigured to 1, or,

Can be configured or preconfigured to 2, or,

Can be configured or pre-configured as 3).

Optionally, for k ∈ {0, 1, ..., N _RIC -1}, the resource subset

The number of subchannels corresponding to all resources in is equal. For example, record the number of sub-channels as

Alternatively, for k ∈ {0, 1, ..., N _RIC -1},

Wherein, optionally, L _subCH may be a predefined or configured or preconfigured value, or determined by one or more predefined or configured or preconfigured parameters, or indicated in the cooperation request.

Alternatively, for k ∈ {0, 1, ..., N _RIC -1},

The way to define and/or determine the collaborative resource set with the

related to the type. For example, if the collaboration resource set

is a priority resource set, then for k ∈ {0, 1, ..., N _RIC -1},

As another example, if the collaboration resource set

is a non-priority resource set, then

Indicated by the corresponding RIC (ie RIC _k ).

Optionally, for k∈{0, 1, ..., N _RIC -1}, triv _k and/or friv _k and/or rriv _k are defined and/or determined in the same manner as the collaboration resource set

related to the type. For example, if the collaboration resource set

is a priority resource set, then indicated in friv _k

As another example, if the collaboration resource set

is a non-priority resource set, then friv _k does not indicate

(at this time,

can be determined in other ways, such as

).

Optionally, yes

friv _k can be defined in one of the following ways:

●

●

●

Optionally, yes

friv _k can be defined in one of the following ways:

●

●

●

●

●

●

●

●

Optionally, the etriv ₀ indicates the

time slot

time slot

..., and slots

For example, the etriv ₀ may be defined as a combinatorial index. Specifically, for example, the etriv ₀ may be defined as one of the following:

●

●

Wherein, A ₁ is a predefined constant, for example A ₁ =-1, and for example A ₁ =0, and for example A ₁ =1; A ₂ is a predefined constant, for example A ₂ =-1, and for example A ₂ =0, or A ₂ =1.

●

Wherein, B ₁ is a predefined constant, such as B ₁ =-1, or B ₁ =0, or B ₁ =1; B ₂ is a predefined constant, such as B ₂ =-1, or B ₂ =0, another example is B ₂ =1.

●

●

Wherein, C ₁ is a predefined constant, for example C ₁ =-1, and for example C ₁ =0, and for example C ₁ =1; C ₂ is a predefined constant, for example C ₂ =-1, and for example C ₂ =0, another example is C ₂ =1.

●

●

Wherein, D ₁ is a predefined constant, such as D ₁ =-1, and D ₁ =0, and D ₁ =1; D ₂ is a predefined constant, such as D ₂ =-1, and D ₂ =0, or D ₂ =1.

Optionally, the

time slots (i.e. slots

time slot

..., and slots

) are each indicated with a separate field.

Optionally, each bit in the frb ₀ may correspond to a subchannel in a time slot. For example, the frb ₀ can contain

bits (for example, the corresponding bit numbers (or indices) are

), among them, for

No

The bits corresponding to the resource pool u in the slot

Subchannel j in .

Optionally, each bit in the frb ₀ may be used to indicate whether the corresponding subchannel in the corresponding time slot is related to the coordinated resource set

One of the resources overlaps (for example, indicated by using the value "0" of the bit, and indicated by the value "1" of the bit), or used to indicate whether the corresponding subchannel in the corresponding time slot is identical to the collection of collaborative resources

One or more resources in overlap (for example, indicated by using the value "0" of the bit, and indicated by using the value "1" of the bit). Wherein, optionally, a subchannel in a time slot overlaps with a certain resource, which may also be expressed as that the subchannel in the time slot belongs to the resource.

Optionally, in Embodiment 1 of the present invention,

Represents the extended binomial coefficient.

In this way, according to the first embodiment, the present invention provides a method, by introducing the value of the extended time resource indicator on the basis of the frequency resource bitmap, eliminating the need for no resource indication in the general bitmap-based indication method The overhead on the time slot improves the transmission efficiency of signaling related to cooperation between UEs.

In the present invention, "inter-UE cooperation" and other related terms (such as "cooperation information", "cooperation request", "priority resource", "non-priority resource", "sidelink coordination control information", "physical sidelink Coordination Information Channel/Signal", "Physical Sidelink Coordination Request Channel/Signal", "Coordination Resource Set" fields, etc.) may be defined by their functions in the system and/or corresponding procedures and/or corresponding signaling. These terms can be replaced by other names when applied to a specific system.

[modified example]

Next, FIG. 2 is used to illustrate a user equipment as a modified example that can execute the method performed by the user equipment described in detail above in the present invention.

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 includes a processor 201 and a memory 202 . The processor 201 may include, for example, a microprocessor, a microcontroller, an embedded processor, and the like. The memory 202 may include, for example, a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a nonvolatile memory (such as a flash memory), or other memories. Program instructions are stored on memory 202 . When the instructions are executed by the processor 201, the above method described in detail in the present invention and executed by the user equipment may be executed.

The method and related equipment of the present invention have been described above in conjunction with preferred embodiments. Those skilled in the art can understand that the methods shown above are only exemplary, and the embodiments described above can be combined with each other without conflicts. The method of the present invention is not limited to the steps and sequence shown above. The network nodes and user equipment shown above may include more modules, for example, may also include base stations, AMF (Access and Mobility Management Function, access and mobility management function), UPF ( User Plane Function, user plane function), MME (Mobility Management Entity, mobile management entity), S-GW (Serving Gateway, serving gateway) or UE modules, etc. The various identifiers shown above are only exemplary rather than restrictive, and the present invention is not limited to specific information elements as examples of these identifiers. Numerous variations and modifications may be made by those skilled in the art in light of the teachings of the illustrated embodiments. Those skilled in the art should understand that part or all of a mathematical expression, a mathematical equation, or a mathematical inequality can be simplified, transformed, or rewritten to a certain extent, such as merging constant terms, or exchanging two addition terms, or exchanging two addition terms. multiplication term, another example is to change a term to move from the left side of the equation or inequality to the right side, and another example is to change a term to move from the right side to the left side of the equation or inequality, etc.; Simplify Or the mathematical expressions or mathematical equations or mathematical inequalities before and after transformation or rewriting may be considered equivalent.

It should be understood that the above-mentioned embodiments of the present invention may be implemented by software, hardware, or a combination of software and hardware. For example, various components inside the base station and user equipment in the above embodiments can be implemented by various devices, including but not limited to: analog circuit devices, digital circuit devices, digital signal processing (DSP) circuits, programmable processing Devices, Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), Programmable Logic Devices (CPLDs), etc.

In the present invention, "base station" may refer to a mobile communication data and/or control switching center with a certain transmission power and a certain coverage area, such as including functions such as resource allocation and scheduling, data reception and transmission. "User equipment" may refer to a user's mobile terminal, including, for example, a mobile phone, a notebook, and other terminal equipment capable of wirelessly communicating with a base station or a micro base station.

Furthermore, embodiments of the present invention disclosed herein may be implemented on a computer program product. More specifically, the computer program product is a product having a computer-readable medium encoded with computer program logic that, when executed on a computing device, provides associated operations to implement Above-mentioned technical scheme of the present invention. When executed on at least one processor of a computing system, the computer program logic causes the processor to execute the operations (methods) described in the embodiments of the present invention. Such arrangements of the invention are 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 as one or more other media of firmware or microcode on a ROM or RAM or PROM chip, or a downloadable software image in one or more modules, a shared database, etc. Software or firmware or such configurations can be installed on the computing device, so that one or more processors in the computing device execute the technical solutions described in the embodiments of the present invention.

In addition, each functional module or each feature of the base station device and terminal device used in each of the above embodiments may be implemented or executed by a circuit, and the circuit is generally one or more integrated circuits. Circuits designed to perform the various functions described in this specification may include general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs) or general-purpose integrated circuits, field-programmable gate arrays (FPGAs), or other possible Program logic devices, discrete gate or transistor logic, or discrete hardware components, or any combination of the above. A general-purpose processor can be a microprocessor, or the processor can be an existing processor, controller, microcontroller, or state machine. The general-purpose processor or each circuit described above may be configured by a digital circuit, or may be configured by a logic circuit. In addition, when an advanced technology that can replace the current integrated circuit appears due to the progress of semiconductor technology, the present invention can also use an integrated circuit obtained by using the advanced technology.

Although the present invention has been illustrated in conjunction with the preferred embodiments thereof, those skilled in the art will understand that various modifications, substitutions and alterations can be made to the present invention 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 appended claims and their equivalents.

Claims (2)

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

   Receive cooperation information, which includes an extended time resource indicator value etriv ₀ and a frequency resource bitmap frb ₀ ; and,

   Determine the set of collaboration resources indicated in the collaboration information

   

   All the different time slots corresponding to

   

   and the collection of collaboration resources

   

   frequency resources in each of said time slots. in,

   

   and

   right

   

   If the number in frb ₀ is

   

   The bit value of is 1, then the time slot

   

   The subchannel j in and the collaborative resource set

   

   One or more resources in overlap. in,

   

   is the length of the corresponding resource selection window, and

   

   is the number of sub-channels in the corresponding resource pool.
2. A user equipment, comprising:

   processor; and

   memory, storing instructions,

   wherein said instructions perform the method of claim 1 when executed by said processor.

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