CN113727445A

CN113727445A - Side link resource processing method, resource determining method and related equipment

Info

Publication number: CN113727445A
Application number: CN202010457006.7A
Authority: CN
Inventors: 刘思綦; 纪子超
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-11-30
Also published as: WO2021238896A1

Abstract

The application discloses a side link resource processing method, a resource determining method and related equipment, wherein the method comprises the following steps: obtaining the configuration of a side link SL resource pool; according to the SL resource pool configuration, SL resources and feedback resources in a first time period are determined; determining an operation behavior in the case that the SL resource contains a target SL resource satisfying a first condition; the feedback resources comprise first feedback resources with the period of N; the first condition is: there is no first feedback resource satisfying a first mapping relation with the target SL resource, or there are at least two feedback resources satisfying a first mapping relation with the target SL resource, where the first mapping relation is a mapping relation between the first feedback resource and the SL resource. The embodiment of the application improves the reliability of SL transmission.

Description

Side link resource processing method, resource determining method and related equipment

Technical Field

The present application belongs to the field of communications technologies, and in particular, to a method for processing sidelink resources, a method for determining resources, and a related device.

Background

In the V2X system, a Physical Sidelink Feedback Channel (PSFCH) resource is used to transmit Feedback of a Sidelink (SL) Transport Block (TB) based on HARQ Feedback (Feedback), and at this time, a transmitting end (TX UE) may determine whether to perform next psch retransmission according to a Feedback result transmitted by a previous Physical Sidelink Feedback Channel (PSSCH). Currently, the PSFCH resource occurs periodically with a period of periododpsfchreshole, which may be 1, 2, or 4 SL slots (slots), and each SL slot may be referred to as a SL resource. However, the number of SL resources in a SL resource pool or the number of SL resources in a SL resource pool period or the number of SL resources in a given time (e.g., 10240ms) may not be guaranteed to be an integer multiple of the PSFCH period. This may result in part of SL resources not satisfying the PSFCH of the preset mapping relationship, thereby affecting transmission and/or feedback. Therefore, the prior art has the problem that the reliability of SL transmission is low.

Disclosure of Invention

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, a method for processing sidelink resources is provided, including:

obtaining the configuration of a side link SL resource pool;

according to the SL resource pool configuration, SL resources and feedback resources in a first time period are determined;

determining an operation behavior in the case that the SL resource contains a target SL resource satisfying a first condition;

the feedback resources comprise first feedback resources with the period of N; the first condition is: there is no first feedback resource satisfying a first mapping relation with the target SL resource, or there are at least two feedback resources satisfying a first mapping relation with the target SL resource, where the first mapping relation is a mapping relation between the first feedback resource and the SL resource.

In a second aspect, a resource determination method is provided, including:

obtaining the configuration of a side link SL resource pool;

determining SL resources and periodic feedback resources according to the SL resource pool configuration; wherein the feedback resource is used for feeding back feedback information corresponding to the SL resource, and the configuration of the SL resource pool satisfies at least one of the following conditions:

the number of SL resources in a second time period is integral multiple of the period N of the feedback resources;

in a third time period, the repetition times of the bitmaps configured in the SL resource pool are integral multiples of N;

the time domain interval of two adjacent feedback resources is less than or equal to N;

the time domain interval of two adjacent feedback resources is less than or equal to K, and K is the minimum interval between the SL resource and the corresponding feedback resource;

under the condition that the feedback resources are located in SL resources with indexes of s + Nxb, the last N-s SL resources in the fourth time period are the feedback resources, s represents the index of the SL resources where the first feedback resources in the fourth time period are located, and b is a natural number.

In a third aspect, a sidelink resource processing apparatus is provided, where the sidelink resource processing apparatus includes:

a first obtaining module, configured to obtain a sidelink SL resource pool configuration;

a first determining module, configured to determine, according to the SL resource pool configuration, SL resources and feedback resources in a first time period;

a second determining module, configured to determine an operation behavior if the SL resource includes a target SL resource that satisfies a first condition;

In a fourth aspect, an apparatus for determining resources is provided, including:

a second obtaining module, configured to obtain a sidelink SL resource pool configuration;

a third determining module, configured to determine SL resources and periodic feedback resources according to the SL resource pool configuration; wherein the feedback resource is used for feeding back feedback information corresponding to the SL resource, and the configuration of the SL resource pool satisfies at least one of the following conditions:

In a fifth aspect, there is provided a communication device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method according to the first aspect or implementing the steps of the method according to the second aspect.

In a sixth aspect, there is provided a readable storage medium on which a program or instructions are stored, which program or instructions, when executed by a processor, performs the steps of the method according to the first aspect, or performs the steps of the method according to the second aspect.

In a seventh aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the steps of the method according to the first aspect, or to implement the steps of the method according to the second aspect.

The method comprises the steps of determining SL resources and feedback resources in a first time period according to SL resource pool configuration by obtaining the SL resource pool configuration; determining an operation behavior in the case that the SL resource contains a target SL resource satisfying a first condition; the feedback resource comprises a first feedback resource with a period of N; the first condition is: the target SL resource does not have the corresponding first feedback resource according to a first mapping relationship or at least includes two corresponding feedback resources, and the first mapping relationship is a mapping relationship between the first feedback resource and the SL resource. Thus, under the condition that the SL resources contain the target SL resources meeting the first condition, the operation behavior is determined, so that the sending end and the receiving end can keep consistent understanding, and the influence on transmission and/or feedback caused by the fact that part of the SL resources do not meet the PSFCH of the first mapping relation is avoided. Therefore, the embodiment of the application improves the reliability of SL transmission.

Drawings

Fig. 1 is a block diagram of a network system to which an embodiment of the present application is applicable;

fig. 2 is a flowchart of a method for processing sidelink resources according to an embodiment of the present disclosure;

fig. 3 is an exemplary diagram of a corresponding relationship between SL resources and feedback resources in a sidelink resource processing method according to an embodiment of the present application;

fig. 4 is a second exemplary diagram of a corresponding relationship between SL resources and feedback resources in the sidelink resource processing method according to the embodiment of the present application;

fig. 5 is a third exemplary diagram of a corresponding relationship between SL resources and feedback resources in a sidelink resource processing method according to the embodiment of the present application;

fig. 6 is a fourth exemplary diagram of a corresponding relationship between SL resources and feedback resources in a sidelink resource processing method according to an embodiment of the present application;

fig. 7 is a fifth exemplary diagram of a corresponding relationship between SL resources and feedback resources in a method for processing sidelink resources according to an embodiment of the present application;

fig. 8 is a sixth exemplary diagram of a corresponding relationship between SL resources and feedback resources in a sidelink resource processing method according to an embodiment of the present application;

fig. 9 is a flowchart of a resource determination method provided in an embodiment of the present application;

fig. 10 is a block diagram of a sidelink resource processing apparatus according to an embodiment of the present application;

fig. 11 is a block diagram of a resource determination apparatus according to an embodiment of the present application;

fig. 12 is a block diagram of a communication device according to an embodiment of the present application;

fig. 13 is a block diagram of a terminal according to an embodiment of the present application;

fig. 14 is a block diagram of a network device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications, such as 6th Generation (6G) communication systems.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a first terminal 11, a second terminal 12 and a network device 13, wherein the first terminal 11 and the second terminal 12 may be user terminals or other terminal-side devices, such as: terminal side devices such as a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), a vehicle or a Road Side Unit (RSU), and the like, it should be noted that specific types of the first terminal 11 and the second terminal 12 are not limited in this embodiment of the present application. The network device may be a 5G base station, a later-version base station, a base station in another communication system, referred to as a node B, an evolved node B, or a Transmission Reception Point (TRP), an Access Point (AP), or another vocabulary in the field, and the network device is not limited to a specific technical vocabulary as long as the same technical effect is achieved. In addition, the network device may be a Master Node (MN) or a Secondary Node (SN). It should be noted that, in the embodiment of the present application, only the 5G base station is taken as an example, but the specific type of the network device is not limited.

Optionally, in fig. 1, for the sidelink transmission from the first terminal 12 to the second terminal 13, the first terminal 11 is a transmitting end or a sending terminal of the sidelink transmission, and the second terminal 12 is a receiving end or a receiving terminal of the sidelink transmission. Of course, in other sidelink transmissions, the first terminal 12 may also act as a receiving end or a receiving terminal for other sidelink transmissions.

For convenience of understanding, some contents related to the embodiments of the present application are described below:

time domain resource of Long Term Evolution (LTE) SL resource pool

LTE SL supports 15 kHz. LTE SL may transmit using Uu's resources, typically it may use Uplink (UL) parts on a Time Division Duplex (TDD) carrier. The parameter subframe bitmap SL-r14 used in LTE SL indicates the time domain resource of the SL resource pool, the indication information is a bitmap, and the length of the bitmap is related to the currently used TDD configuration. In particular, in most cases, the length of the bitmap is proportional to the number of uplink resources in the TDD configuration.

In LTE, one frame is 10ms, and one frame includes 10 subframes (subframes). Frame numbers 0-1023, it being understood that only a maximum of 1024 frames will be numbered, with wrap around (wrap around) numbering occurring above 1024, i.e. starting again at 0.

In the process of determining the time domain resource of the resource pool, the user may remove 1024 frames of the subframe, the downlink subframe and the special subframe used for the SL synchronization signal. If the number of remaining subframes is not an integer multiple of the bitmap length (e.g., the remainder is N), the remainder is regarded as a reserved subframe and excluded. The number of sub-frames for the SL synchronization signal within 160ms is one or two or three.

The number of remaining subframes after excluding the above subframes will be an integer multiple of the length of the subframe bitmap sl-r14 bitmap, and then the bitmap indication information is applied to these remaining subframes. Specifically, each bit corresponds to a subframe. The bitmap indication information is repeated over time. The sub-frame corresponding to bit of 1 in the bitmap belongs to the resource pool, and the sub-frame corresponding to 0 is not considered to belong to the resource pool.

Second, New Radio (NR) TDD.

The NR TDD configuration is very flexible, and the number of uplink resources in one TDD pattern (pattern) can be 0 to 80. And the TDD configuration may include 1 or 2 TDD patterns. The period of one TDD pattern may be 9. The periods (T1 and T2) of the two TDD patterns may be the same or different.

And thirdly, side link Hybrid automatic repeat request (SL HARQ) feedback.

To improve reliability and effectiveness of the sildelink transmission, NR V2X introduces SL HARQ. On SL, the sending end sends data or TB to the receiving end, the receiving end judges whether the data is received successfully, if the data is received successfully, the receiving end feeds back positive Acknowledgement (ACK) to the sending end, otherwise, feeds back Negative Acknowledgement (NACK).

The SL supports unicast (unicast), multicast (groupcast) and broadcast (broadcast) transmissions, which need to support SL HARQ feedback. For unicast transmission, the receiving end (RX UE) feeds back ACK/NACK on its PSFCH resources. For groupcast transmission, there are at least two feedback forms:

option 1: the RX UE only feeds back NACK, and does not feed back any feedback for the condition that the TB demodulation is successful; option 1 may also be referred to as a NACK only feedback mechanism;

option 2: the RX UE feeds back ACK or NACK on different resources. Option 2 may be referred to as a NACK/ACK based feedback mechanism

The above TB transmission occurs on the psch resource and the ACK/NACK transmission occurs on the corresponding PSFCH resource.

After acquiring the SL HARQ information, the transmitting end may also transmit the SL HARQ information to the network device through a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH).

And fourthly, NR SL PSFCH and a Physical Sidelink Control Channel (PSCCH) or pscsch.

The PSFCH resource occurs periodically with a period of periodpsfchreresource, which may be 1, 2, or 4 SL slots. Each PSFCH time domain opportunity (PSFCH occasion) corresponds to a period PSFCH resource SL slot, HARQ feedback corresponding to PSCCH/PSSCH transmission performed in the period PSFCH resource SL slot feeds back on one or more PSFCH resources on the PSCCH occasion, and a one-to-one or many-to-one PSCCH/PSSCH-PSFCH time domain mapping relationship is actually formed, so that a PSCCH/PSCCH transmitting user or a PSCCH/PSCCH receiving user can know which PSCCH occasion to receive or transmit a corresponding SL HARQ. It should be understood that the PSFCH occase can be understood as a PSFCH resource.

The interval between the PSCCH/psch slot and the corresponding PSFCH occast is not less than K slots, K2 or 3. In other words, the minimum separation of the PSCCH/PSSCH slot from the corresponding PSFCH occasting is K. The value of K may be indicated by the parameter MinTimeGapPSFCH.

The PSFCH occast may occur at the end of a slot according to

cycle

1, 2 or 4, where the period of mapping is also period psfchreresource. And the slot corresponding to the slot m PSFCH occast is located at slot m-K-N + 1-m-K, wherein N is the PSFCH period. Thus for a given K and N PSCCH/PSCCH-PSFCH mapping, the inter-associated PSCCH/PSCCH slots and PSFCH slots are spaced K slots to K + N-1 slots (denoted as K-K + N-1).

And fifthly, a Sidelink PSCCH/PSSCH retransmission mode.

Sidelink supports two PSSCH retransmission forms, one is HARQ feedback based retransmission (HARQ feedback based retransmission) and the other is blind retransmission (blind retransmission). If the TX UE adopts HARQ feedback based retransmission, the RX UE needs to do HARQ feedback on the PSSCH transmitted by the TX UE, and the TX UE determines whether to retransmit the PSSCH according to the HARQ feedback; if the TX UE adopts a blind retransmission mode, the TX UE directly carries out PSSCH transmission on retransmission resources.

And sixthly, selecting the resources of Sidelink.

The resource allocation scheme of Sidelink has at least two modes, mode (mode)1 and mode 2. For mode 1, the control node allocates transmission resources to the TX UE, and for mode 2, the TX UE autonomously selects transmission resources.

At least for mode 2, to ensure that the resource for psch retransmission occurs after the TX UE demodulates the feedback information, it is specified that the Time interval between any two selected psch transmission resources needs to be greater than the HARQ Round-Trip Time (RTT) Time.

And seventhly, reserving resources of Sidelink.

The TX UE performs resource reservation (reservation is divided into periodic reservation and aperiodic reservation) on its allocated resources, and the reserved resources are used for the subsequent pscch transmission.

The PSFCH resource is configured in the SL resource pool, but the uplink and downlink configuration of NR is very flexible, and supports more Subcarrier Spacing (SCS), so the resource pool configuration is much more complex than LTE V2X, and in this case, the number of SL slots in a SL resource pool or the number of SL slots in a SL resource pool period or the number of SL slots in a given time (e.g. 10240ms) is not an integer multiple of the PSFCH period N. The interval between the existence of the partial SL lot and the corresponding PSFCH resource does not satisfy the requirements of the mapping described above. The application side link resource processing method and the resource determining method are provided based on the above.

The side link resource processing method and the resource determining method provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Referring to fig. 2, fig. 2 is a flowchart of a method for processing sidelink resources according to an embodiment of the present application, where the method may be applied to a transmitting end, a receiving end, and a network device, as shown in fig. 2, and includes the following steps:

step 201, obtaining a side link SL resource pool configuration;

step 202, determining SL resources and feedback resources in a first time period according to the configuration of the SL resource pool;

step 203, determining an operation behavior under the condition that the SL resource comprises a target SL resource meeting a first condition;

In this embodiment, the configuration of the SL resource pool may be configured, agreed by a protocol, or preconfigured, and is not further limited herein, in other words, the configuration of obtaining the SL resource pool may be understood as: and receiving the SL resource pool configuration sent by the network equipment, or obtaining the SL resource pool configuration agreed by the protocol, or obtaining the pre-configured SL resource pool configuration.

The SL resource and the feedback resource in the first time period may be determined according to the first resource pool configuration, where the feedback resource may be understood as a PSFCH resource, the feedback resource may be set in the SL resource, and feedback information corresponding to data transmitted by the SL resource may be transmitted based on the feedback resource.

The first mapping relationship may be understood as a mapping relationship between slots that may be used for transmitting PSCCH/PSCCH, and slots where a PSFCH is located that may be used for feeding back feedback information of these PSCCH/PSCCH slots, and may specifically be determined according to values of N and K, where K represents a minimum interval between an SL resource and a corresponding feedback resource. It is to be understood that the slots that may be used for transmission do not represent slots actually used for transmission, i.e. may be candidate slots for transmission of PSCCH/PSCCH and feedback, or may be slots actually used for transmission of PSCCH/PSCCH and feedback.

It should be understood that, in this embodiment, the transmitting end refers to a terminal that transmits SL data and/or SL control, and the receiving end refers to a terminal that receives SL data and/or SL control. The first period is a cycle, and may include a plurality of first periods during actual transmission.

Optionally, there is no feedback resource that satisfies the first mapping relationship with the target SL resource, which may be understood as that there is no feedback resource that satisfies the first mapping relationship with the target SL resource in the current first time period. It may also be understood that a feedback resource that satisfies the first mapping relationship with the target SL resource does not exist in the next first time period, and it may also be understood that a feedback resource that satisfies the first mapping relationship with the target SL resource does not exist in the current first time period and the next first time period. The absence of a feedback resource satisfying a first mapping relationship with the target SL resource may be interpreted as: and the target SL resource does not have the corresponding first feedback resource according to the first mapping relation.

As shown in fig. 3, in an embodiment, according to the mapping with K ═ 2 and N ═ 2, if the mapping resource is searched only in the current first time period, none of N +4, N +5, and N +6 has a corresponding first feedback resource, where N +4, N +5, and N +6 represent indexes of SL resources. If the corresponding feedback resources are searched in the current first time period and the next time period, n +4 and n +5 should be mapped to n ', however, since n' is a new period (i.e. the next first time period), the PSFCH of the PSFCH will appear from n '+ 1, and thus, n' will not have the PSFCH; n '+ 1 and PSFCH correspond to SL resources at n +5 and n +6, so in practice n +5 may also correspond to n' +1 feedback, however n +4 still has no corresponding PSFCH. That is, n +4 cannot find the corresponding mapping resource anyway.

Optionally, the existence of at least two feedback resources satisfying the first mapping relation with the target SL resource may be understood as that the number of the feedback resources satisfying the first mapping relation with the target SL resource existing in the current first time period is greater than 1. It may also be understood that the number of feedback resources that satisfy the first mapping relationship with the target SL resource exists in the next first time period is greater than 1, and it may also be understood that the sum of the number of feedback resources that satisfy the first mapping relationship with the target SL resource exists in the current first time period and the next first time period is greater than 1. In this embodiment, if there are multiple PSFCH resources within K to K + N-1 slots away from the target SL resource, it may be considered that at least two corresponding feedback resources are included.

As shown in fig. 4, in the case where K is 2, N is 4, and corresponding feedback resources are searched in the current first time period and the next time period, N +4 to N +6 may find two feedback resources that meet the first mapping relationship. For example, the feedback resources satisfying the first mapping relationship with n +4 to n +6 include the feedback resources in n +8 and the feedback resources in n'.

The above operation behavior may be understood as a processing behavior for the target SL resource, and since the sending end and the receiving end first determine whether the SL resource includes the target SL resource satisfying the first condition in the first time period, and in a case where it is determined that the SL resource includes the target SL resource satisfying the first condition in the first time period, the operation behavior is determined, so that the sending end and the receiving end can keep consistent understanding.

The method comprises the steps of determining SL resources and feedback resources in a first time period according to SL resource pool configuration by obtaining the SL resource pool configuration; determining an operation behavior in the case that the SL resource contains a target SL resource satisfying a first condition; the feedback resource comprises a first feedback resource with a period of N; the first condition is: the target SL resource does not have the corresponding first feedback resource according to a first mapping relationship or at least includes two corresponding feedback resources, and the first mapping relationship is a mapping relationship between the first feedback resource and the SL resource. Thus, when the SL resource includes a target SL resource satisfying the first condition, the operation behavior is determined, so that the transmitting end and the receiving end can keep understanding consistency, and it is avoided that part of the SL resource does not satisfy the PSFCH of the first mapping relationship, or it is avoided that the feedback resources corresponding to transmission are understood differently, thereby affecting transmission and/or feedback. Therefore, the embodiment of the application improves the reliability of SL transmission.

It should be understood that the manner of how to determine whether to include the target SL resource satisfying the first condition may be set according to actual needs, for example, in an embodiment, when at least one of the following is satisfied, it is determined that the SL resource includes the target SL resource:

condition 1, the number of SL resources in the first time period is not an integer multiple of N;

condition 2, the repetition times of bitmaps (bitmaps) configured by the SL resource pool are not integral multiples of N;

and under the condition 3, a first SL resource exists in the first time period, wherein the first SL resource is located in a second SL resource according to the feedback resource corresponding to the first mapping relationship, the second SL resource is located in the next first time period, and the second SL resource is different from the SL resource where the first feedback resource is located in the next first time period.

For condition 1, it is assumed that the first time period includes 7 SL resource numbers and N is 2 as shown in fig. 3, at this time, the number of SL resources in the first time period is not an integer multiple of N, so that it may be determined that the target SL resource is included in the first time period. It should be understood that the first time period including the number of 7 SL resources may be understood as the product of the number of repetitions of the bitmap of the SL resource pool configuration and the number of resources corresponding to the bitmap of the SL resource pool configuration.

For condition 2, the bitmap configured in the SL resource pool is used to determine the SL resources, where the bitmap repetition number may be understood as: the number of times the bitmap is repeated within the first time period. For example, if N is 2, the bitmap is used to configure 10 SL resources, and the number of corresponding SL resources in the first time period is 100, the bitmap is repeated 10 times, which is an integer multiple of N; if the number of SL resources is 90, the number of times of bitmap repetition is 9, which is not an integer multiple of N, and it may be determined that the target SL resource is included in the first time period.

For condition 3, the feedback resource corresponding to the first SL resource according to the first mapping relationship may be understood as a virtual feedback resource derived according to the first mapping relationship for the first SL resource, where an SL resource where the virtual feedback resource is located is a second SL resource, and the second SL resource is different from an SL resource where the first feedback resource is located in a next first time period, that is, the virtual feedback resource is not located on the same SL resource as the first actual first feedback resource in the next first time period, and it may be determined that the first time period includes the target SL resource. It should be understood that the second SL resource described above is located after the first SL resource.

Optionally, the first SL resource may be understood as a feedback resource corresponding to the first mapping relationship: the SL resource where the virtual feedback resource derived by the first SL resource according to the first mapping relationship is located may not actually include the PSFCH resource.

It should be noted that the SL resource may be understood as a SL slot.

With respect to the above condition 3, the following different understanding modes may be included:

in an embodiment, for a virtual feedback resource determined by a first SL resource according to the first mapping relationship, the SL resource where the virtual feedback resource is located is a second SL resource, and the second SL resource is located before or after a certain SL resource, it may be determined that the target SL resource is included in the first time period. The SL resource is the closest actual feedback resource to the first SL resource that is greater than or equal to K. It should be understood that the first SL resource may be understood as the target SL resource described above, or a portion of the SL resource in the target SL resource.

In another embodiment, for a first SL resource, after the first SL resource, and the distance between the closest actual feedback resource greater than or equal to K from the first SL resource and the first SL resource is greater than N + K-1 or greater than N + K, it may be determined that a target SL resource is included in the first time period.

In another embodiment, the first SL resource cannot find the first feedback resource satisfying the first mapping relationship in the current first time period or the next first time period. At this time, it may be determined that the target SL resource is included within the first time period.

In another embodiment, the first SL resource does not have the first feedback resource on its corresponding SL resource based on the first mapping relationship. At this time, it may be determined that the target SL resource is included within the first time period.

In yet another embodiment, the first SL resource is an SL resource without a complete PSCCH/PSCCH-PSFCH mapping, and the PSCCH/PSCCH-PSFCH mapping based on N and K cannot find the corresponding first feedback resource.

Further, the feedback resource further includes a second feedback resource, where the second feedback resource is used to transmit the feedback information corresponding to the target SL resource, or the second feedback resource is used to transmit the feedback information corresponding to the target SL resource in the last first time period.

It should be understood that one second feedback resource is provided for each first time period. In this embodiment, the above operation behavior may be understood as: and determining whether to transmit the feedback information corresponding to the target SL resource in the second feedback resource.

The second feedback resource is used for transmitting the feedback information corresponding to the target SL resource, which may be understood as: the second feedback resource is used for feeding back feedback information corresponding to the target SL resource in the current first time period, and at this time, the second feedback resource should be set close to or relative to the end time point of the current first time period. The above second feedback resource is used for transmitting the feedback information corresponding to the target SL resource in the previous first time period, and may be understood as: the feedback information of the target SL resource in the previous first time period is fed back in the next first time period, and at this time, the second feedback resource should be set close to or relative to the starting time point of the first time period.

In this embodiment, the second feedback resource may transmit feedback information corresponding to the target SL resource, and may also transmit feedback information corresponding to other SL resources except the target SL resource, which is not limited herein.

It should be noted that the second feedback resource may have a time domain offset and/or a frequency domain offset with respect to the first feedback resource. That is, the second feedback resource satisfies at least one of:

the SL resource is located different from the first feedback resource;

with a frequency domain offset from the first feedback resource.

The second feedback resource may be a PSFCH time domain resource or a PSFCH frequency domain resource configured, defined by a protocol, or preconfigured by a network device. Optionally, the second feedback resource may be located in the current first time period or the next first time period, or in each first time period.

In an embodiment, the second feedback resource is located in a different SL resource than the first feedback resource. Optionally, the second feedback resource is located in the ith SL resource in the first time period, or the second feedback resource is located in the jth SL resource in the last time period.

In this embodiment, optionally, i is less than or equal to N-1, or i is greater than s +1 and less than or equal to s + N. Optionally, j is less than or equal to N-1, or j is greater than s +1 and less than or equal to s + N. Where s is the SL resource index of the first feedback resource in the first time period.

When N is equal to 2, the jth SL resource may be understood as the last SL resource of the first time period, and specifically, as shown in fig. 5, the jth SL resource within the first time period is the last SL resource of the first time period. The ith SL resource may be understood as the first SL resource of the first time period, as shown in fig. 6.

Optionally, in an embodiment, no matter how large the value of N is, the jth SL resource is the last SL resource of the first time period.

Further, in a case where the second feedback resource is located in a jth SL resource from the last in the first time period, the operational behavior includes any of:

transmitting feedback information corresponding to the target SL resource on a feedback resource in the jth SL resource from the last to last;

transmitting feedback information corresponding to an lth SL resource in the target SL resource on a feedback resource in a third SL resource, wherein the third SL resource is: and the SL resource where the first feedback resource is located in the first resource, wherein the time domain interval between the first resource and the L-th SL resource is greater than or equal to K SL resources, and K is the minimum interval between the SL resource and the corresponding feedback resource.

It should be understood that, in general, feedback information corresponding to a SL resource is transmitted on a feedback resource in the SL resource subsequent to the SL resource. That is, the jth SL resource is located after the target SL resource.

The target SL resource may include one or more SL resources, and the lth SL resource may be understood as any one of the target SL resources.

In this embodiment, the first and second feedback resources are included in the first time period, as shown in fig. 3, the SL resource with the index of n +5, that is, the jth SL resource from the last time may be fed back, or the feedback resource in the next time period may be fed back, that is, the feedback information of the SL resource (n +5) is transmitted through the first feedback resource corresponding to the even SL resource (n' + 1). By defining the position of the feedback resource corresponding to each SL resource in the target SL resource, the understanding of the transmitting end and the receiving end on the position of the feedback resource can be ensured to be consistent.

In another embodiment, the interval between the starting SL resource of the first time period and the ith SL resource of the next first time period is s + a × N SL resources;

or, the interval between the starting SL resource in the first time period and the ith SL resource in the first time period is (s + a × N) mod T SL resources;

wherein s represents an index of the SL resource where the first feedback resource is located in the first time period, a represents the number of the first feedback resources in the first time period, and T represents the number of the SL resources in the first time period.

In this embodiment, i ═ (s + (a) × N) mod T is described above. Optionally, in this embodiment, the index of the SL resource in the first time period is assumed to start from 0, and if the index of the SL resource in the first time period starts from 1, s in all index formulas is increased by 1, that is, s is changed to s + 1.

Optionally, in a case that the second feedback resource is located in an ith SL resource within the first time period, the operation behavior includes any one of:

transmitting feedback information corresponding to an lth SL resource in the target SL resource on a feedback resource in a fourth SL resource, where the fourth SL resource is: the SL resource where the first feedback resource is located in the second resource, and the time domain interval between the second resource and the L-th SL resource is greater than or equal to K SL resources;

feedback information corresponding to an lth SL resource in the target SL resources is transmitted on a feedback resource in a fifth SL resource, where the fifth SL resource is: the SL resource where the last feedback resource in the third resources is located, wherein the time domain interval between the third resource and the L-th SL resource is less than or equal to the time domain interval between the third resource and the L-th SL resource in the resources of the N + K-Y SL resources;

wherein, K is the minimum interval between the SL resource and the corresponding feedback resource, and Y is an integer.

Optionally, the value of Y may be set according to actual needs. In various embodiments of the present application, Y may be-1, 0, or 1, for example, in an alternative, Y may take the value of 1.

In this embodiment, the first feedback resource and the second feedback resource are included in the next first time period, as shown in fig. 3, for the SL resource with the index of n +5, the feedback may be performed on the ith SL resource in the next first time period, or the feedback may be performed on the first feedback resource in the next time period, that is, the feedback information of the SL resource (n +5) is transmitted on the first feedback resource corresponding to the even SL resource (n' + 1). By defining the position of the feedback resource corresponding to each SL resource in the target SL resource, the understanding of the transmitting end and the receiving end on the position of the feedback resource can be ensured to be consistent.

It should be understood that, in an embodiment, the time domain interval between the second feedback resource and the previous first feedback resource is m SL resources, where m is a natural number less than N.

In this embodiment, m may be understood as the density of the feedback resource, and optionally, when N is 2, m-0 or 1; when N is 4, m is 0, 1, 2 or 3. Wherein m-0 indicates that the psch and psch corresponding to the second feedback resource do not have corresponding feedback resources.

Optionally, in a case that the second feedback resource has a frequency domain offset from the first feedback resource, the frequency domain position of the second feedback resource comprises at least one of: frequency domain offset (offset), Resource Block (RB) occupied by the frequency domain, and frequency domain Resource indication bitmap.

The frequency domain offset may be understood as an offset with respect to an upper or lower boundary or center of the first feedback resource configuration. Each bit (bit) in the frequency domain resource indication bitmap corresponds to an RB, and in an embodiment, it may be defined that if bit ═ 1 indicates that the RB corresponding to the bit belongs to the second feedback resource. In another embodiment, it may be defined that if bit is 0, the RB corresponding to the bit belongs to the second feedback resource.

Further, the time domain position of the second feedback resource is the SL resource where the first feedback resource of the first time period is located.

Optionally, in an embodiment, the user (sending end or receiving end) does not use or restricts the use of the target SL resource part, for example, the operation behavior includes at least one of the following:

determining that the target SL resource does not belong to an SL resource pool or excluding the target SL resource from the SL resource pool under the condition that the SL resource pool contains feedback resources or starting hybrid automatic repeat request (HARQ) feedback or indicating HARQ feedback;

determining that the target SL resource is not used for SL transmission;

determining that the target SL resource does not have a corresponding feedback resource;

the sending end does not monitor the feedback resource corresponding to the target SL resource;

the receiving end does not send the feedback resource corresponding to the target SL resource;

excluding the target SL resource from candidate resources, reserved resources or reselected resources corresponding to the first transmission when the first transmission is started or needs HARQ feedback;

under the condition that the target SL resource is preempted, determining the priority of the target SL resource is lowest or determining that the priority of the target SL resource is lowest than the priority of a preempting party;

comparing the priority or not triggering the resource reselection under the condition that the target SL resource is preempted;

determining that the target SL resource has no corresponding reported information;

determining that the target SL resources are available for broadcast transmissions, blind retransmissions, or transmissions with HARQ disabled.

In this embodiment, determining that the target SL resource does not belong to the SL resource pool may be understood as determining that the target SL resource does not belong to the SL resource, and excluding the target SL resource from the SL resource pool may also be understood as excluding the target SL resource from candidate SL resources.

Optionally, in an embodiment, the target SL resources may be considered to belong to reserved (reserved) resources, so that the target SL resources are excluded from the SL resource pool or the candidate SL resources; in another embodiment, it may be considered that these target SL resources and reserved resources are excluded together.

Optionally, SL resources belonging to the SL resource pool are determined from the excluded remaining resources.

It is to be understood that not comparing priorities may be understood as not comparing preemptions to their own priorities. Feedback errors may be avoided because the target SL resource portion is not used or restricted from being used.

It should be noted that, in the embodiment of the present application, by defining the operation behavior, it may be helpful to understand consistency between the feedback resource and the transmission, and ensure the feedback reliability.

In one embodiment, the feedback of normal SL resources may be guaranteed when the operation behavior includes at least one of:

determining that the target SL resource does not belong to a SL resource pool or excluding the target SL resource from the SL resource pool under the condition that the first time period contains feedback resources or enables hybrid automatic repeat request (HARQ) feedback or indicates HARQ feedback.

In another embodiment, when the operation behavior includes at least one of the following, the target SL resource may be guaranteed to be available, and the utilization rate of the resource may be increased:

determining that the target SL resource is not used for SL transmission;

under the condition that HARQ feedback is started or required in first transmission, the target SL resource is excluded from candidate resources, reserved resources or reselected resources corresponding to the first transmission;

In another embodiment, when the operation behavior includes at least one of the following, frequent resource selection or resource reselection processing procedures may be avoided, thereby improving system performance:

in case the target SL resource is preempted, no priority comparison is made, or no resource reselection is triggered.

In another embodiment, when the operation behavior includes determining that the target SL resource does not have corresponding reporting information, overhead may be reduced because the reporting information does not need to be sent to the network device.

Optionally, in an embodiment, the operation behavior includes: determining a location of the first feedback resource according to an offset configuration.

In this embodiment, the position of the first feedback resource is adjusted. The above offset configuration is used to configure an offset amount, which can be understood as a time domain offset of the first feedback resource. Since the first feedback resource is time-domain shifted, the target SL resource can be stolen to the head of the first time period.

The offset configuration may be network device configuration, pre-configuration, or protocol defined. Optionally, a position of a first feedback resource in the first time period may be determined based on the offset configuration, where the position may be understood as an index corresponding to the SL resource, for example, the SL resource with an index of a + N × b is provided with the first feedback resource, a is an offset of the offset configuration, and b is a natural number. The value of b is less than or equal to the value of the first time period divided by N. In other words, the first feedback resource in the first period is located in the SL resource with the index of a + N × b of the first period, a is the offset of the offset configuration, and b is a natural number.

Alternatively, a above may also be understood as: offset A1+ relative offset start position s1, where s1 ≦ N. Thus, for example, a1 is 1, s1 is 2, and the first feedback resource is located at 1+ 2-3, i.e. the PSFCH is located at the third slot.

As shown in fig. 7, when a is 2 SL resources, the first feedback resource is located on the SL resource with index 2 in the first time period. The above-mentioned a is fixed to 0, i.e., it can be understood as no offset, where a satisfies: (number of SL resources in the first time period is-1) mod N + X is not less than A, or min (0, ((number of SL resources in the first time period is mod N) -1)) + X is not less than A, wherein X is 0 or-1 or +1, and mod is the remainder.

Optionally, the operational behavior further comprises at least one of:

determining that the SL resource corresponding to the offset configuration does not belong to an SL resource pool or excluding the SL resource corresponding to the offset configuration from the SL resource pool under the condition that the feedback resource is included in the first time period or hybrid automatic repeat request (HARQ) feedback is enabled or HARQ feedback is instructed;

determining that SL resources corresponding to the offset configuration are not used for SL transmission;

determining that the SL resource corresponding to the offset configuration has no corresponding feedback resource;

the sending end does not monitor the feedback resource corresponding to the SL resource corresponding to the offset configuration;

the receiving end does not send the feedback resource corresponding to the SL resource corresponding to the offset configuration;

under the condition that HARQ feedback is started or required in first transmission, excluding SL resources corresponding to the offset configuration from candidate resources, reserved resources or reselected resources corresponding to the first transmission;

under the condition that the SL resources corresponding to the offset configuration are preempted, determining the SL resources corresponding to the offset configuration to have the lowest priority or determining that the SL resources corresponding to the offset configuration to have the lowest priority than a preempting party;

comparing the priority or not triggering the resource reselection under the condition that the SL resource corresponding to the offset configuration is preempted;

determining that the SL resource corresponding to the offset configuration has no corresponding report information;

determining that SL resources corresponding to the offset configuration are available for broadcast transmission, blind retransmission, or HARQ-disabled transmission.

In this embodiment, the SL resource corresponding to the offset configuration may be understood as the SL resource located at the first feedback resource and the SL resource located before the first feedback resource in the first time period. The SL resource corresponding to the index of the first N-1 SL resources whose index is smaller than the SL resource where the first feedback resource is located can also be understood.

Optionally, in an embodiment, the user (sending end or receiving end) may use the target SL resource, for example, the operation behavior may include at least one of the following:

the sending end assumes that the feedback information corresponding to the target SL resource is ACK (acknowledgement) or NACK (negative acknowledgement);

the receiving end does not send feedback information on the feedback resource corresponding to the target SL resource;

determining the lowest or highest priority of the feedback resources corresponding to the target SL resources;

acquiring the priority of the feedback resource corresponding to the target SL resource through configuration or pre-configuration;

determining that a feedback resource corresponding to the target SL resource is invalid, absent, discarded or not transmitted;

determining that the reported information corresponding to the target SL resource is ACK or NACK;

determining the lowest or highest priority of reported information corresponding to the target SL resource;

determining the priority of the reported information corresponding to the target SL resource through configuration or pre-configuration;

and determining that the transmission resource of the report information corresponding to the target SL resource is invalid, does not exist, is discarded or is not transmitted.

Optionally, feedback information corresponding to any sixth SL resource in the SL resources is transmitted on a feedback resource in a seventh SL resource; the seventh SL resource is any one of:

the SL resource where the first feedback resource is located in the resource of which the time domain interval with the sixth SL resource is greater than or equal to K SL resources;

and in the resources of which the time domain interval with the sixth SL resource is less than or equal to N + K-Y SL resources, the SL resource where the last feedback resource is located, K is the minimum interval between the SL resource and the corresponding feedback resource, and Y is an integer.

It should be understood that the scheme of this embodiment is also applicable to the case where a certain SL resource has a corresponding feedback resource.

For slot t, the corresponding feedback resource meets any one of the following conditions:

a first PSFCH occast slot with a distance not less than K 'slots after the slot t, wherein K' represents the minimum interval between a second PSFCH resource and the corresponding slot;

the first PSFCH occasting slot after slot t and with the distance not less than K.

In an embodiment, if the 1 st slot (i.e. slot 0) of one or each first time slot is a PSFCH occast slot, no matter whether the obtained SL resource configuration meets the above integer multiple or integer division requirement, for the slot t, the corresponding feedback resource meets any of the following requirements:

a first PSFCH occast slot which is behind the slot t and has a distance not less than K slots;

the last PSFCH occast slot after slot t and with the distance not greater than N + K-1.

In an embodiment, if the 1 st slot (i.e. slot 0) of a certain or each preset time slot is a PSFCH occast slot, no matter whether the obtained SL resource configuration meets the above integer multiple or integer division requirement, for the slot t, the corresponding feedback resource meets any of the following requirements:

Optionally, in an embodiment, a time domain interval between any one of the SL resources and a feedback resource that transmits feedback information of the sixth SL resource is less than or equal to a target value, where the target value is K + N + X or K + N-X, and X is 0 or-1.

Optionally, in an embodiment, the target feedback resource is used to transmit feedback information corresponding to N1 SL resources before the target feedback resource;

the target feedback resource is any feedback resource in the first time period, among the SL resources with the spacing distance between the N1 SL resources and the target feedback resource being greater than or equal to K and less than or equal to N + K-Y, the first N1 SL resources or the last N1 SL resources, and Y is an integer.

Optionally, a value of N1 is equal to N, where N is a PSFCH period, for example, a value corresponding to period psfchreresource. It should be understood that the scheme of this embodiment is also applicable to the case where a certain SL resource has a corresponding feedback resource.

Alternatively, the first time period may be any of the following: 10240ms, a System Frame Number (SFN) period, a Direct Frame Number (DFN) period, a time period corresponding to the bitmap, and an SL resource pool period.

For a better understanding of the present application, the following detailed description is given in conjunction with specific examples.

As shown in fig. 3, according to the mapping of K ═ 2 and N ═ 2, N +4 and N +5 should be mapped to N ', however, since N' is a new period, PSFCH appears from N '+ 1, so there is no PSFCH on N', which results in error of the feedback mechanism. Thereby presenting a remainder portion. The remainder part may be understood as the above-mentioned target SL resource, and may also be understood as an SL resource including at least the above-mentioned target SL resource.

The definition of the remainder portion includes any of:

if a (PSCCH/PSCCH) slot within a preset time period (for example, 10240ms or an SFN cycle or a DFN cycle or an SL resource pool cycle or a time period corresponding to SL resource pool configuration) cannot find a first PSCCH satisfying a first mapping relationship within a current preset time period or a next preset time period, a remainder part exists, where the (PSCCH/PSCCH) slot belongs to a remainder part, for example, n +4 in the drawing.

If there is no first PSCCH on a slot corresponding to a certain preset time period (for example, 10240ms or SFN period or DFN period or SL resource pool period or time period corresponding to SL resource pool configuration) based on the first mapping relationship, there is a remainder part, where the (PSCCH/PSCCH) slot belongs to a remainder part, for example, n +4 in the drawing.

Further optionally, N-1 (PSCCH/PSSCH) slots after the first (PSCCH/PSSCH) slot that meets the above requirements are also considered to belong to the remainder portion (e.g., N +4 to N + 5).

Further optionally, the (PSCCH/PSCCH) slot after the first (PSCCH/PSCCH) slot satisfying the above requirement is considered to belong to the remainder part (e.g., n +4 to n +6) within the preset time period.

The first mapping relation: mapping relation of PSCCH/PSSCH-PSFCH mapping based on K and N

First PSFCH within a preset time period: the PSFCH resource specified by N, specifically, PSFCH occast (time domain resource), may represent s + N × b, where s is 0, 1, …, and N-1. The preset time period is an SFN/DFN cycle or 10240ms or a time period corresponding to SL resource pool bitmap configuration.

Scheme 1: when the network device configures or defines the protocol or the vendor pre-configures the SL resource, at least one of the following situations is included, and the remainder part exists:

in case 1, there is a case where the number of SL resources within a certain or some preset time period is not an integer multiple of the period of the feedback resources. For example, the number of SL resources in 10240ms is not an integer multiple of the feedback resource period, for example, the number of SL resources in a time period corresponding to the configuration of the SL resource pool is not an integer multiple of the feedback resource period.

Case 2, the number of times of repeating (mapping) the configured bitmap of the SL resource pool in a certain or some preset time period is not an integer multiple of the period of the feedback resource. For example, the number of times of repeating (mapping) the SL resource pool configuration bitmap is not an integer multiple of the feedback resource period within 10240 ms.

In case 3, the product R × T of the repetition (mapping) times of the SL resource pool configuration bitmap in the first preset time period or the first preset time periods and the second preset time period is not an integral multiple of the feedback resource period (or may not be divisible). For example, the product of the number R of SL resources in the time period corresponding to the configuration of the SL resource pool bitmap and the number T of repetitions (mapping) of the configuration of the SL resource pool bitmap in 10240ms is not an integer multiple of the period of the feedback resources.

In case 4, for a certain SL slot t, if according to the resource pool PSCCH/psch-PSFCH mapping, its corresponding 'possible' PSFCH occast is after L SL slots relative to the slot t, and the slot of the 'possible' PSFCH is located in the next preset time period (for example, the next SFN/DFN cycle), and the slot index of the slot of the 'possible' PSFCH in the next preset time period corresponding to the starting point of the preset time period is smaller than s or larger than s, it indicates that there is a remainder part, for example, the SL slot does not have (satisfies PSCCH/psch-PSFCH mapping) corresponding PSFCH resource.

In case 5, for a certain SL slot t, if according to the resource pool PSCCH/psch-PSFCH mapping, its corresponding 'possible' PSFCH occase is after L SL slots relative to the slot t, but after the SL slot t and after the slot t 'where the last actual PSFCH occase whose distance from the SL slot t is greater than or equal to K is located, and' possible 'PSFCH occase is before or after the slot t', it indicates that there is a remainder portion, for example, the SL slot t does not have (satisfies PSCCH/psch-PSFCH mapping) the corresponding PSFCH resource.

In case 6, for a certain SL slot t, if the distance between the slot and the slot t of the latest actual PSCCH ocast located after the SL slot t and having the distance from the SL slot t greater than or equal to K is greater than N + K-1 or greater than N + K according to the PSCCH/psch-PSCCH mapping of the resource pool, it indicates that there is a remainder part, for example, the SL slot t does not have a corresponding PSCCH resource (which satisfies PSCCH/psch-PSCCH mapping).

In case 7, if a (PSCCH/PSCCH) slot within a certain preset time period (for example, 10240ms or an SFN cycle or a DFN cycle or an SL resource pool cycle or a time period corresponding to SL resource pool configuration) cannot find a first PSFCH meeting a first mapping within a current preset time period or a next preset time period, a remainder exists.

In case 8, if there is no first PSCCH/PSCCH slot in a certain predetermined time period (for example, 10240ms, or SFN cycle, or DFN cycle, or SL resource pool cycle, or a time period corresponding to SL resource pool configuration) based on the first mapping and the slot corresponding thereto, there is a remainder part.

Optionally, the existence of the remainder portion in the preset time period (which does not satisfy the requirement of integer multiple or division) may be considered that the remainder portion belongs to a certain target time period, and the target time period specifically includes any one of:

the last SL resource pool cycle in a preset time period, e.g., within some or every given time period (e.g., 10240ms) or SFN/DFN cycle;

in a preset time period, for example, in a certain or each given time period (e.g., 10240ms) or SFN/DFN cycle or SL resource pool cycle, the last time when the SL resource pool bitmap configures (e.g., SL resource pool bitmap configuration) the corresponding logical or physical time;

during a preset time period, e.g., during some or every given time period (e.g., 10240ms) or SFN/DFN cycle, some or every SL resource pool cycle;

a logical or physical time corresponding to a certain or each SL resource pool bitmap configuration (e.g., SL resource pool bitmap configuration) in a preset time period, for example, in a certain or each given time period (e.g., 10240ms) or SFN/DFN cycle or SL resource pool cycle;

some or each DFN/SFN period;

some or each 10240 ms;

and configuring the corresponding logical or physical time when the or each SL resource pool bitmap is mapped (for example, SL resource pool bitmap configuration).

A certain DFN period may be referred to as a current DFN period or a next DFN period.

Optionally, the slot in which the preset time period cannot complete the complete PSCCH/PSCCH-PSFCH mapping part is called a remainder part, or the slot in which the corresponding PSCCH cannot be found according to the PSCCH/PSCCH-PSFCH mapping based on K and N is called a remainder part. It can also be understood that the slot where the PSFCH cannot be found according to the PSCCH/psch-PSFCH mapping is referred to as the remainder portion, e.g., slot n +4 as shown in fig. 3. Or that the slot itself of the PSFCH and one or more slots following it cannot be found according to the PSCCH/psch-PSFCH mapping. For example, slot n +4 and slot n +5 in fig. 3, or slot n +4 to slot n + 6.

To process the remainder portion, the following method is used.

In the method 1-1, a second PSFCH resource (time domain PSFCH resource) is introduced for a remainder part in a preset time period.

Optionally, the network device configuring or protocol defining or vendor pre-configuring the second PSFCH resource time domain position t' within the preset time period (remainder portion) includes:

t' is positioned in the jth SL slot from the last in the preset time period or each preset time period, and i is not more than N-1; optionally, the SL slot that is jth from last and not the first PSFCH is t'; alternatively, the last SL slot, as shown in FIG. 5.

t' is located at the next preset time period or SL slot i, i < N-1 in each preset time period. For example, when i is 0, as shown in fig. 6.

Optionally, t 'is located in the b' th slot of the next preset time period or each preset time period:

let the slot of a normal PSFCH in the resource pool be denoted as s, s + N, s +2N …. If the position of s + a × N exceeds the preset time period boundary (e.g., exceeds the SFN/DFN boundary), and the number of slots that exceed the boundary (i.e., enter the next preset time period) is b ' and b ' is not N, then the b ' th slot in each preset time period is t ', i.e., the next preset time period or the b ' th slot of each preset time period contains the second PSFCH resource. Thus for slot n (i.e., the nth-1 slot) within some preset time period.

The formula can be expressed as: b '═ T-s-1 mod N or b' ═ N- (T-s-1) mod N or the slot numbered (T-s-1) mod N-1 is T 'or the slot numbered (N- (T-s-1) mod N) -1 is T'. Wherein, T is the number of SL resources within a preset time period.

Optionally, the density m or m of the PSFCH time domain resource is a time domain interval of the second PSFCH resource and the previous PSFCH resource with the remainder part

Alternatively, 0 ≦ m < N, e.g., when N ≦ 2, m ≦ 0 or 1; when N is 4, m is 0, 1, 2 or 3. If m is 0, the PSSCH corresponding to the slot and the PSSCH slot do not have corresponding feedback resources.

Optionally, the distance between the second PSFCH resource and the previous first PSFCH resource is m;

the second PSFCH resource and the minimum interval K' of the corresponding slot.

Alternatively, K' ═ min (K, m). Or K' ═ min (K, N)

Alternatively, K' ≦ K.

As shown in fig. 5, the second PSFCH resource may be placed in slot n + 6. At this time, the feedback of slot n +5 may be located in the second PSFCH resource corresponding to slot n +6, or the first PSFCH resource corresponding to slot n' + 1. Corresponding to one SL slot t, one of the following rules may be specifically satisfied:

if the SL slot t belongs to the remainder part, feeding back the last slot of the slot t in the preset time period; i.e. slot n + 6;

selecting a first PSFCH resource which is behind the slot t and is not less than K' slots away from the slot t for feedback; i.e. slot n +6

Selecting a first PSFCH occast behind the slot t and with the distance from the slot t not less than K slots for feedback; i.e. slot n' + 1.

As shown in fig. 6, the second PSFCH resource may be placed in slot n'. At this time, the feedback of slot n +5 may be located in the second PSFCH resource corresponding to slot n ', or the first PSFCH resource corresponding to slot n' + 1. Corresponding to one SL slot t, one of the following rules may be specifically satisfied:

after slot t is selected, the first PSFCH occast with the distance not less than K slots is fed back; slot n';

the last PSFCH resource which is selected after slot t and has the distance not larger than N + K-1 is fed back; i.e. slot n' + 1.

Optionally, the 1 st slot (slot 0) of each preset time period is a PSFCH occast slot, and no matter whether the acquired SL resource configuration meets the integer multiple or integer division requirement or not. For slot t, the corresponding feedback resource is located behind slot t and is not less than the first PSFCH occast slot of K' slots or is located behind slot t and is not less than the first PSFCH occast slot of K.

Method 1-2, a second PSFCH resource (frequency domain PSFCH resource) is introduced for a remainder portion within a preset time period.

The network device configuration or protocol definition or vendor pre-configures the second PSFCH resource within the preset time period (remainder part), which specifically includes at least one of the following:

the PSFCH frequency domain position f ', f' comprises at least one of a frequency domain offset, a resource block RB occupied by a frequency domain, and a frequency domain resource indication bitmap;

the PSFCH time-domain position t ', t ' is the slot where the first PSFCH occase in the next preset time period is located, as shown in fig. 8, the second PSFCH resource is configured at n ' +1 for remainder portion feedback.

The second PSFCH resource is set through frequency domain offset, so that the resource utilization rate and flexibility are improved, and the resource allocation flow and the HARQ feedback flow are not influenced.

The method 2 comprises the following steps: the use of the remainder portion is not used or limited. Optionally, the target slot corresponding to the remainder part contains at least one of the following:

under the condition that feedback resources are contained in an SL resource pool or hybrid automatic repeat request (HARQ) feedback is started or HARQ feedback is indicated, the SL resource pool does not belong to the SL resource pool or the target slot is excluded from the SL resource pool;

not used for SL transmission;

there is no corresponding feedback resource;

the sending end does not monitor the feedback resource corresponding to the target slot;

the receiving end does not send the feedback resource corresponding to the target slot;

under the condition that first transmission is started or HARQ feedback is needed, excluding a target slot from candidate resources, reserved resources or reselected resources corresponding to the first transmission;

under the condition that the target SL resource is preempted, the target slot priority is the lowest or the target slot priority is determined to be lower than the priority of a preempting party;

comparing the priority or not triggering the resource reselection under the condition that the target slot is preempted;

no corresponding reporting information exists;

may be used for broadcast transmissions, blind retransmissions, or transmissions with harq (harq disabled) disabled.

Method 2-1: the remainder portion is stolen to the head of the preset time period by adding the PSFCH resource time domain offset.

When the network device configures or defines the protocol or the manufacturer pre-configures the PSFCH resource, the PSFCH resource comprises the offset configuration, and the PSFCH resource is determined based on the offset.

For example, the PSFCH resource exists at offset + N × b, b is a natural number, and b is less than or equal to a preset time period duration divided by a rounded value of N. The rounded value may be understood as a value rounded up or rounded down.

Optionally, an additional K ', K ' ≧ K may also be configured, such as shown in fig. 7, K ' ≧ K + offset.

Optionally, the SL slot corresponding to the offset includes at least one of: the method is not used for actual transmission, has no corresponding feedback resource, the PSSCH sends no feedback monitoring by a user, the PSSCH receives no feedback sending by a user, the feedback is excluded from candidate resources or reserved resources or reselection resources corresponding to TBs needing HARQ, the priority is not compared or the resource reselection is not triggered when the feedback is preempted, and no corresponding SL reporting information exists.

Method 3, the remainder part may be used (e.g. may be used for transmission of TBs requiring HARQ feedback), e.g. may include at least one of:

the PSSCH transmitting end does not monitor the corresponding feedback slot;

the PSSCH transmitting end assumes that the corresponding feedback of the PSSCH transmission of the remainder part is ACK or NACK;

the PSSCH receiving end does not feed back on the corresponding 'feedback slot';

the priority of the feedback resource corresponding to the remainder part is lowest or highest;

the priority of the feedback resource corresponding to the remainder part can be configured or pre-configured;

feedback resources corresponding to the remainder part are invalid, absent, discarded or not transmitted;

SL reporting information corresponding to the remainder part is ACK or NACK;

the SL reporting information corresponding to the remainder part has the lowest or the highest priority;

the SL reporting information priority corresponding to the remainder part can be configured or can be preconfigured;

the transmission resource (PUCCH and/or PUSCH) of the SL report information corresponding to the remainder part is invalid, absent, discarded, or not transmitted. For example, if a resource of a certain period of a SL configuration grant (SL Configured grant) includes at least one resource in the remainder portion, the PUCCH of the period of the Configuration Grant (CG) is not transmitted. Optionally, the SL configuration grant is a SL configured grant type 1.

Optionally, the time domain position of the first feedback resource in a preset time period is in the first time domain resource of the preset time period, for example, the first PSFCH event is in the first SL slot of the preset time period, so that the PSFCH event is located in s + N b slot, b is 0, 1, 2 · · integer value of the preset time period. The rounding value is a rounding value obtained by dividing the preset time period duration by N, wherein the rounding value may be a value obtained by rounding up or a value obtained by rounding down.

Optionally, the position of the PSSCH/PSCCH slot corresponding to the PSFCH occasion slot is derived according to the PSFCH occasion slot associated with the PUSCH/PUCCH.

Assuming that the PSFCH occasting slot is located at slot s', the method includes one of the following cases:

in case 1, the PSSCH/PSCCH slot is located before distance s 'and the distance s' is not less than K slots and not greater than the latest N slots of the slots of N + K-Y slots. Optionally, if the corresponding feedback slot is determined according to the PSSCH/PSCCH slot, if the first PSFCH occase of the PSSCH/PSCCH slot after the slot t and with a distance not less than K slots is determined for the PSSCH/PSCCH slot, it is suitable to use this condition to determine the corresponding PSSCH/PSCCH slot through the PSFCH slot.

In case 2, the PSSCH/PSCCH slot is located before distance s 'and the distance s' is not less than K slots and not greater than the earliest N slots of the N + K-Y slots. Optionally, if the corresponding feedback slot is determined according to the psch/PSCCH slot, if the last PSCCH resource is determined for the psch/PSCCH slot after the slot t and with a distance not greater than N + K-Y for the psch/PSCCH slot, it is suitable to use this situation to determine the corresponding psch/PSCCH slot through the PSCCH slot.

Optionally, Y is-1 or 0 or 1.

Optionally, in one implementation, the remainder part belongs to a part of the SL reserved resources, so that the remainder part is also excluded or considered not to belong to the SL resources when the SL reserved resources are excluded. Or in another implementation, the remainder portion and/or SL reserved resources are excluded or considered not to belong to SL resources.

One embodiment in which the remainder portion or SL reserved resources are excluded is achieved by:

firstly, resources occupied by SLSS signals do not contain resources of UL resources meeting preset requirements, resources of an SL resource pool are determined in at least one of the remaining resources after elimination in the remainder part, for example, the resources occupied by the SLSS signals are eliminated, the resources of the UL resources meeting the preset requirements are not contained, and the resources after the remainder part are represented as

Wherein N is_slssThe number of SLSS resources in the total number of resources Q in the preset time, N_dssfN is that the total number Q of the resources in the preset time does not contain the resources of UL resources meeting the preset requirement_remainderIs the number of SL resources that do not satisfy the mapped feedback resources within a preset time period. For example, Q may be the number of slots within 10240ms, optionally a physical slot number, further optionally a physical slot number represented with SL SCS. The resource containing the uplink resource meeting the preset requirement refers to a resource only containing an uplink symbol, or a resource containing enough uplink symbols, or a resource containing an uplink symbol, wherein the first uplink symbol is not greater than the symbol X, and the last uplink symbol is not less than the symbol X + Y.

Two for a slot lr, where l_r(0≤r＜(Q-N_slss-N_dssf-N_remainder) If this slot satisfies

Wherein m is 0_reserved-1，N_reserved＝(Q-N_slss-N_dssf-N_remainder)mod L_bitmapWherein L_bitmapIf the length of the bitmap allocated in the resource pool is the length, the bitmap belongs to the reserved resource.

Alternatively, the remainder part and the reserved resources are excluded by the above steps, and the SL resources are determined among the remaining resources. Note that the method is an illustration of excluding the remainder resources first and then excluding the reserved resources, and does not represent a unique order, and other orders, such as excluding the reserved resources first and then excluding the remainder resources, or excluding both, may be used.

Referring to fig. 9, fig. 9 is a flowchart of another resource determining method provided in this embodiment, where the method may be applied to a sending end, a receiving end, and a network device, as shown in fig. 9, and includes the following steps:

step 901, obtaining a side link SL resource pool configuration;

step 902, determining SL resources and periodic feedback resources according to the SL resource pool configuration; wherein the feedback resource is used for feeding back feedback information corresponding to the SL resource, and the configuration of the SL resource pool satisfies at least one of the following conditions:

The two adjacent feedback resources can be understood as two feedback resources adjacent in the time domain. Optionally, N is less than or equal to K.

Optionally, the second time period and the first time period may be defined by the same time, or may be defined by different times, for example, in an embodiment, the second time period is any one of the following: 10240ms, a System Frame Number (SFN) period, a Direct Frame Number (DFN) period, a time period corresponding to the bitmap and a SL resource pool period. The third time period is any one of: 10240ms, SFN period, DFN period, and SL resource pool period.

The time period corresponding to the bitmap of the SL resource pool can be understood as: the logical or physical duration corresponding to the SL resource pool bitmap, the logical or physical duration corresponding to the bit of the SL resource pool bitmap 1, or the logical or physical duration corresponding to the bit of the SL resource pool bitmap 0.

The SL resource pool period can be understood as: for example, the period of bitmap mapping of the SL resource pool, or a logical or physical period corresponding to a bitmap repetition preset number of times of the SL resource pool, an SFN period, or 10240ms, or a logical or physical period corresponding to a bitmap of the SL resource pool, a logical or physical period corresponding to a bit of a bitmap 1 set in the bitmap of the SL resource pool, or a logical or physical period corresponding to a bit of a bitmap 0 set in the bitmap of the SL resource pool. For example, the number of SL resources in one SL resource pool period is an integer multiple of the PSFCH period. For example, if the SL resource pool period is configured or preconfigured or defined as P, repeated and continuous mapping of the bitmap of the SL resource pool is performed in a certain or each P, and the mapping of the bitmap of the SL resource pool is restarted every time the next P is entered. For example, every time a new cycle is entered, mapping is started from the SL resource with index 0.

The SFN cycle can be understood as: the time between the minimum SFN to the maximum SFN, e.g. 10240 ms.

The DFN period can be understood as: the time between the minimum DFN to the maximum DFN, e.g., 10240 ms.

For example, the number of repeated mapping times of the SL resource pool bitmap configuration in one DFN or SFN period is an integer multiple of the PSFCH period.

The above-mentioned 10240ms may be understood as a given period of time.

Optionally, when the second time period is 10240ms, an SFN cycle, a DFN cycle, or the SL resource pool cycle, the integer multiple of the cycle of the SL resource number feedback resource in the second time period includes:

and the product of the bitmap repetition times in the second time period and the number of SL resources in the time period corresponding to the bitmap is integral multiple of the period of the feedback resources.

For example, the number of SL resources in the time period corresponding to the bitmap is 14 SL slots, the second time period is 10240ms, and the number of times of bitmap repetition (mapping) configured for the SL resource pool in the second time period is 98 times, assuming that the PSFCH period in the resource pool is 4, it is obvious that the product of the number of times of bitmap repetition in the second time period and the number of SL resources in the time period corresponding to the bitmap is a multiple of 4.

Alternatively, for the case where the feedback resource is located at s + N × b SL resources, the N-s last SL resources in the fourth time period as the feedback resource may be understood as if the normal PSFCH in the fourth time period is located at s + N × b, and the N-s last slots in the fourth time period are PSFCH slots.

For example:

for s ═ 0, the nth last slot is the PSFCH slot;

for s ═ 1, the N-1 slot from the last is a PSFCH slot;

for s-N-2, the 2 nd slot to last is a PSFCH slot;

for s-N-1, the last 1 slot is a PSFCH slot.

In the embodiment of the application, the SL resources and the feedback resources are determined through the configuration of the SL resource pool, and the configuration of the SL resource pool meets at least one of the following conditions: the number of SL resources in a second time period is integral multiple of the period N of the feedback resources; in a third time period, the repetition times of the bitmaps configured in the SL resource pool are integral multiples of N; the time domain interval of two adjacent feedback resources is less than or equal to N; the time domain interval of two adjacent feedback resources is less than or equal to K; under the condition that the feedback resources are located in SL resources with indexes of s + Nxb, the last N-s SL resources in the fourth time period are the feedback resources, s represents the index of the SL resources where the first feedback resources in the fourth time period are located, and b is a natural number. Therefore, all SL resources can be ensured to have the PSFCH meeting the first mapping relation, and the reliability of SL transmission is improved.

Alternatively, the number of SL resources in the second time period may be understood as the duration of the second time period. It may also be referred to as SL slot number in the second time period, or a physical duration of the second time period, such as ms number included, s number included, frame number included, and so on. In other words, in this embodiment, the number of SL resources is the number of SL slots or the number of physical time units.

Specifically, the number of SL resources in the second time period may be the number of resources corresponding to a bit of 1 in the SL resource pool configuration bitmap in the second time period, or the number of SL resources in the second time period may be the number of resources corresponding to a bit of 0 in the SL resource pool configuration bitmap in the second time period.

Further, the number of SL resources in the second time period is the number of slots corresponding to bits of 1 in the resource pool configuration bitmap of the SL resource pool where the PSFCH resource is located in the second time period. The SL resources may be interpreted as SL slots.

For example, the second time period is a SL resource pool cycle or a 10240ms or a DFN/SFN cycle, there are a resource pool 1 and a resource pool 2, the PSFCH cycle of the resource pool 1 is 2, and the PSFCH cycle of the resource pool 2 is 4, then the slot number of a bit that is 1 in the resource pool configuration bitmap corresponding to the resource pool 1 in the second time period is a multiple of 2, and the slot number of a bit that is 1 in the resource pool configuration bitmap corresponding to the resource pool 2 in the second time period is a multiple of 4.

Optionally, a time domain interval between any one of the SL resources and a feedback resource that transmits feedback information of the sixth SL resource is less than or equal to a target value, where the target value is K + N + X or K + N-X, and X is 0 or-1.

Optionally, the target feedback resource is used to transmit feedback information corresponding to N1 SL resources before the target feedback resource;

the target feedback resource is any one of the feedback resources, among the SL resources with the spacing distance between the N1 SL resources and the target feedback resource being greater than or equal to K and less than or equal to N + K-Y, the first N1 SL resources or the last N1 SL resources, and Y is an integer.

It should be noted that, the number of SL resources in the second time period is an integer multiple of the feedback resource period, and the behavior of the user has at least one of the following:

the user expects or assumes that the number R of SL resources in the time period corresponding to the configuration of the SL resource pool bitmap is integral multiple of the period of the feedback resources;

more specifically, the user expects or assumes that the number of SL resources in the second time period is an integer multiple of the feedback resource period, and the user expects or assumes that the number T of times of bitmap repetition (mapping) configured by the SL resource pool in the second time period is an integer multiple of the feedback resource period;

the user expects or assumes that R x T is an integer multiple of the feedback resource period.

Further, the feedback resource period, the number of SL resources, and the number of times that the SL resource pool is configured with bitmap repetition (mapping) correspond to the feedback resource period, the number of SL resources, and the number of times that the SL resource pool is configured with bitmap repetition (mapping) of the same resource pool.

It should be noted that, in the sidelink resource processing method provided in the embodiment of the present application, the execution main body may be a sidelink resource processing apparatus, or a control module in the sidelink resource processing apparatus for executing the sidelink resource processing method. In the embodiment of the present application, a method for performing sidelink resource processing by a sidelink resource processing device is taken as an example to describe the processing provided in the embodiment of the present application.

Referring to fig. 10, fig. 10 is a structural diagram of a sidelink resource processing apparatus according to an embodiment of the present application, and as shown in fig. 10, the sidelink resource processing apparatus 1000 includes:

a first obtaining module 1001, configured to obtain a sidelink SL resource pool configuration;

a first determining module 1002, configured to determine, according to the SL resource pool configuration, SL resources and feedback resources in a first time period;

a second determining module 1003, configured to determine an operation behavior if the SL resource includes a target SL resource that satisfies a first condition;

the feedback resources comprise first feedback resources with the period of N; the first condition is: there is no feedback resource satisfying a first mapping relation with the target SL resource or there are at least two feedback resources satisfying a first mapping relation with the target SL resource, where the first mapping relation is a mapping relation between the first feedback resource and the SL resource.

Optionally, the first determining module 1002 is further configured to determine that the SL resource includes a target SL resource when at least one of the following is satisfied:

the number of SL resources in the first time period is not integral multiple of N;

the bitmap repetition times configured by the SL resource pool are not integral multiples of N;

and a first SL resource exists in the first time period, the first SL resource is positioned in a second SL resource according to the feedback resource corresponding to the first mapping relation, the second SL resource is positioned in the next first time period, and the second SL resource is different from the SL resource in which the first feedback resource is positioned in the next first time period.

Optionally, the feedback resource further includes a second feedback resource, where the second feedback resource is used to transmit the feedback information corresponding to the target SL resource, or the second feedback resource is used to transmit the feedback information corresponding to the target SL resource in the last first time period.

Optionally, the second feedback resource satisfies at least one of:

the SL resource is located different from the first feedback resource;

with a frequency domain offset from the first feedback resource.

Optionally, the second feedback resource is located in the ith SL resource in the first time period, or the second feedback resource is located in the jth SL resource in the first time period.

Optionally, the j-last SL resource is a last SL resource of the first time period.

Optionally, in a case that the second feedback resource is located at a jth SL resource from the last in the first time period, the operation behavior includes any of:

Optionally, the interval between the starting SL resource of the first time period and the ith SL resource of the next first time period is s + a × N SL resources;

Optionally, a time domain interval between the second feedback resource and the previous first feedback resource is m SL resources, where m is a natural number smaller than N.

Optionally, in a case that the second feedback resource has a frequency domain offset from the first feedback resource, the frequency domain position of the second feedback resource comprises at least one of: frequency domain offset, resource blocks RB occupied by the frequency domain, and frequency domain resource indication bitmap.

Optionally, the time domain position of the second feedback resource is an SL resource where a first feedback resource of the first time period is located.

Optionally, the operational behavior comprises at least one of:

determining that the target SL resource is not used for SL transmission;

Optionally, the operational behavior comprises:

determining a location of the first feedback resource according to an offset configuration.

Optionally, the first feedback resource in the first period is located in an SL resource with an index of a + N × b of the first period, where a is an offset of offset configuration, and b is a natural number.

Optionally, the operational behavior further comprises at least one of:

Optionally, the operational behavior comprises at least one of:

the target feedback resource is any feedback resource in the first time period, among the SL resources with the spacing distance between the N SL resources and the target feedback resource being greater than or equal to K and less than or equal to N + K-Y, the first N1 SL resources or the last N1 SL resources, and Y is an integer.

The apparatus for processing sidelink resources provided in this embodiment of the present application can implement each process implemented by the apparatus for processing sidelink resources in the method embodiment of fig. 2, and is not described here again to avoid repetition.

It should be noted that, in the resource confirmation method provided in the embodiment of the present application, the execution main body may be a resource confirmation device, or a control module in the resource confirmation device for executing resource confirmation. In the embodiment of the present application, a resource confirmation apparatus is used as an example to perform resource confirmation, and the resource confirmation apparatus provided in the embodiment of the present application is described.

Referring to fig. 11, fig. 11 is a structural diagram of a resource confirmation apparatus according to an embodiment of the present application, and as shown in fig. 11, the resource confirmation apparatus 1100 includes:

a second obtaining module 1101, configured to obtain a sidelink SL resource pool configuration;

a third determining module 1102, configured to determine SL resources and periodic feedback resources according to the SL resource pool configuration; wherein the feedback resource is used for feeding back feedback information corresponding to the SL resource, and the configuration of the SL resource pool satisfies at least one of the following conditions:

and under the condition that the feedback resources are positioned in the SL resources with the indexes of s + Nxb, the last Nth-s SL resources in the fourth time period are the feedback resources, s represents the index of the SL resources where the first feedback resources in the fourth time period are positioned, and b is a natural number.

Optionally, the second time period is any one of: 10240ms, a System Frame Number (SFN) period, a Direct Frame Number (DFN) period, a time period corresponding to the bitmap and a SL resource pool period.

Optionally, the third time period is any one of: 10240ms, SFN period, DFN period, and SL resource pool period.

Optionally, the number of SL resources is the number of SL slots or the number of physical time units.

The resource confirmation device provided in the embodiment of the present application can implement each process implemented by the resource confirmation device in the method embodiment of fig. 9, and is not described here again to avoid repetition.

The sidelink resource processing device and the resource confirmation device in the embodiment of the present application may be devices, or may be components, integrated circuits, or chips in a terminal. The device can be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.

The sidelink resource processing device and the resource confirmation device in the embodiment of the present application may be devices having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.

The sidelink resource processing apparatus and the resource confirmation apparatus provided in the embodiment of the present application can implement each process implemented by the method embodiments of fig. 1 to fig. 9, and achieve the same technical effect, and are not described herein again to avoid repetition.

Optionally, as shown in fig. 12, an embodiment of the present application further provides a communication device 1200, which includes a processor 1201, a memory 1202, and a program or an instruction stored on the memory 1202 and executable on the processor 1201, where the program or the instruction, when executed by the processor 1201, implements the processes of the embodiments of the sidelink resource processing method and the resource confirmation method, and can achieve the same technical effect. To avoid repetition, further description is omitted here.

Fig. 13 is a schematic hardware structure diagram of a terminal implementing various embodiments of the present application.

The terminal 1300 includes but is not limited to: a radio frequency unit 1301, a network module 1302, an audio output unit 1303, an input unit 1304, a sensor 1305, a display unit 1306, a user input unit 1307, an interface unit 1308, a memory 1309, a processor 1310, and the like.

Those skilled in the art will appreciate that terminal 1300 may also include a power supply (e.g., a battery) for powering the various components, which may be logically coupled to processor 1310 via a power management system to manage charging, discharging, and power consumption management functions via the power management system. The terminal structure shown in fig. 13 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and thus will not be described again.

It should be understood that in the embodiment of the present application, the input Unit 1304 may include a Graphics Processing Unit (GPU) 13041 and a microphone 13042, and the Graphics processor 13041 processes image data of still pictures or videos obtained by an image capturing apparatus (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1306 may include a display panel 13061, and the display panel 13061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1307 includes a touch panel 13071 and other input devices 13072. A touch panel 13071, also referred to as a touch screen. The touch panel 13071 may include two parts, a touch detection device and a touch controller. Other input devices 13072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In this embodiment of the application, the radio frequency unit 1301 receives downlink data from a network side device and then processes the downlink data to the processor 1310; in addition, the uplink data is sent to the network device. In general, radio unit 1301 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 1309 may be used to store software programs or instructions as well as various data. The memory 109 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the Memory 1309 may include a high-speed random access Memory, and may also include a nonvolatile Memory, where the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 1310 may include one or more processing units; alternatively, the processor 1310 may integrate an application processor that handles primarily the operating system, user interface, and applications or instructions, etc., and a modem processor that handles primarily wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into processor 1310.

Wherein, the processor 1310 is configured to obtain the SL resource pool configuration; according to the SL resource pool configuration, SL resources and feedback resources in a first time period are determined; determining an operation behavior in the case that the SL resource contains a target SL resource satisfying a first condition;

Or processor 1310, configured to obtain a sidelink SL resource pool configuration;

It should be understood that, in this embodiment, the processor 1310 and the radio frequency unit 1301 can implement each process implemented by the terminal in the method embodiments of fig. 2 and fig. 8, and are not described herein again to avoid repetition.

Specifically, the embodiment of the application further provides a network device. As shown in fig. 14, the network device 1400 includes: antenna 1401, radio frequency means 1402, baseband means 1403. An antenna 1401 is coupled to the radio 1402. In the uplink direction, rf device 1402 receives information via antenna 1401 and sends the received information to baseband device 1403 for processing. In the downlink direction, the baseband device 1403 processes information to be transmitted and transmits the information to the rf device 1402, and the rf device 1402 processes the received information and transmits the processed information through the antenna 1401.

The above band side link resource processing means may be located in the baseband means 1403, and the method performed by the network device in the above embodiment may be implemented in the baseband means 1403, where the baseband means 1403 includes the processor 1404 and the memory 1405.

The baseband means 1403 may for example comprise at least one baseband board on which a plurality of chips are arranged, as shown in fig. 14, wherein one chip, for example, a processor 1404, is connected to the memory 1405 to call up a program in the memory 1405 to perform the network device operation shown in the above method embodiment.

The baseband device 1403 may further include a network interface 1406, such as a Common Public Radio Interface (CPRI), for exchanging information with the rf device 1402.

Specifically, the network side device of the embodiment of the present invention further includes: the instructions or programs stored in the memory 1405 and capable of running on the processor 1404, the processor 1404 calls the instructions or programs in the memory 1405 to execute the methods executed by the modules shown in fig. 10 and 11, and achieve the same technical effects, and therefore, in order to avoid repetition, the description is omitted here.

The embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the above-mentioned embodiment of the sidelink resource processing method or the resource determining method, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the above-mentioned embodiment of the side link resource processing method or the resource determining method, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a base station) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A method for processing sidelink resources, comprising:

obtaining the configuration of a side link SL resource pool;

2. The method of claim 1, further comprising:

determining that the SL resource contains the target SL resource when at least one of the following is satisfied:

and a first SL resource exists in the first time period, wherein the first SL resource is located in a second SL resource according to the feedback resource corresponding to the first mapping relation, the second SL resource is located in the next first time period, and the second SL resource is different from the SL resource where the first feedback resource is located in the next first time period.

3. The method of claim 1, wherein the feedback resources further include second feedback resources, and the second feedback resources are used for transmitting feedback information corresponding to the target SL resources, or the second feedback resources are used for transmitting feedback information corresponding to the target SL resources in the last first time period.

4. The method of claim 3, wherein the second feedback resource satisfies at least one of:

the SL resource is located different from the first feedback resource;

with a frequency domain offset from the first feedback resource.

5. The method of claim 3, wherein the second feedback resource is located in an ith SL resource in the first time period, or wherein the second feedback resource is located in a jth SL resource in the first time period.

6. The method of claim 5, wherein the j-last SL resource is a last SL resource of the first time period.

7. The method of claim 5, wherein in the case that the second feedback resource is located in a jth SL resource from the last in the first time period, the operational behavior comprises any of:

8. The method of claim 5, wherein a spacing between a starting SL resource of the first time period and an ith SL resource of a next first time period is s + a N SL resources;

9. The method of claim 5, wherein in the case that the second feedback resource is located in an ith SL resource within the first time period, the operational behavior comprises any of:

10. The method of claim 3, wherein the second feedback resource is separated from the previous first feedback resource in time domain by m SL resources, where m is a natural number less than N.

11. The method of claim 4, wherein in the case that the second feedback resource has a frequency domain offset from the first feedback resource, the frequency domain location of the second feedback resource comprises at least one of: frequency domain offset, resource blocks RB occupied by the frequency domain, and frequency domain resource indication bitmap.

12. The method of claim 11, wherein the time domain position of the second feedback resource is a SL resource where a first feedback resource of the first time period is located.

13. The method of claim 1, wherein the operational behavior comprises at least one of:

determining that the target SL resource is not used for SL transmission;

14. The method of claim 1, wherein the operational behavior comprises:

15. The method of claim 14, wherein a first feedback resource is located in a SL resource with an index a + N × b of the first time period in the first time period, a is an offset of an offset configuration, and b is a natural number.

16. The method of claim 15, wherein the operational behavior further comprises at least one of:

17. The method of claim 1, wherein the operational behavior comprises at least one of:

18. The method according to claim 1, wherein the feedback information corresponding to any sixth SL resource in the SL resources is transmitted on a feedback resource in a seventh SL resource; the seventh SL resource is any one of:

19. The method of claim 1, wherein a time domain interval between any one of the SL resources and a feedback resource transmitting feedback information of the sixth SL resource is smaller than or equal to a target value, wherein the target value is K + N + X or K + N-X, and X is 0 or-1.

20. The method of claim 1, wherein a target feedback resource is used for transmitting feedback information corresponding to N1 SL resources before the target feedback resource;

21. A method for resource determination, comprising:

obtaining the configuration of a side link SL resource pool;

22. The method of claim 21, wherein the second time period is any one of: 10240ms, a System Frame Number (SFN) period, a Direct Frame Number (DFN) period, a time period corresponding to the bitmap and a SL resource pool period.

23. The method of claim 21, wherein the third time period is any one of: 10240ms, SFN period, DFN period, and SL resource pool period.

24. The method of claim 22, wherein when the second time period is 10240ms, an SFN cycle, a DFN cycle, or the SL resource pool cycle, the integer multiple of the period of the number of SL resource feedback resources in the second time period comprises:

25. The method of claim 21, wherein the number of SL resources is a number of SL slots or a number of physical time units.

26. The method of claim 21, wherein a time domain interval between any one of the SL resources and a feedback resource transmitting feedback information of the sixth SL resource is less than or equal to a target value, wherein the target value is K + N + X or K + N-X, and X is 0 or-1.

27. The method of claim 21, wherein a target feedback resource is used for transmitting feedback information corresponding to N1 SL resources before the target feedback resource;

28. A sidelink resource handling apparatus, wherein the sidelink resource handling apparatus comprises:

29. The apparatus of claim 28, wherein the first determining module is further configured to determine that the SL resource includes the target SL resource when at least one of:

30. The apparatus of claim 28, wherein the feedback resources further comprise second feedback resources, and the second feedback resources are configured to transmit feedback information corresponding to the target SL resource, or the second feedback resources are configured to transmit feedback information corresponding to the target SL resource in the last first time period.

31. The apparatus of claim 30, wherein the second feedback resource is located at the ith SL resource in the first time period, or the second feedback resource is located at the jth SL resource from the last in the first time period.

32. A resource determination apparatus, comprising:

33. A communication device, comprising: memory, a processor and a program stored on the memory and executable on the processor, the program implementing the steps in the sidelink resource processing method as claimed in any one of claims 1 to 20 when executed by the processor or implementing the steps in the sidelink resource processing method as claimed in any one of claims 21 to 27 when executed by the processor.

34. A readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps in the sidelink resource processing method as claimed in any one of claims 1 to 20, or which when executed by a processor implement the steps in the sidelink resource processing method as claimed in any one of claims 21 to 27.