CN114071721A

CN114071721A - Method, device and equipment for configuring feedback resources of secondary link

Info

Publication number: CN114071721A
Application number: CN202010747222.5A
Authority: CN
Inventors: 曾裕; 刘思綦; 纪子超
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2022-02-18
Also published as: WO2022022593A1

Abstract

The application discloses a method, a device and equipment for configuring sidelink feedback resources, and belongs to the field of communication. Wherein the method comprises the following steps: acquiring resource configuration information; determining a secondary link feedback resource corresponding to a target mapping mode according to the resource configuration information; the target mapping mode is one of a plurality of mapping modes corresponding to the same resource pool, and the secondary link feedback resource corresponding to the target mapping mode is code domain multiplexed with the secondary link feedback resource corresponding to the first mapping mode in the plurality of mapping modes. By adopting the embodiment of the application, the understanding of each terminal device on the configuration of the secondary link feedback resources can be kept consistent, the coexistence of mapping modes with different feedback periods is realized, and the conflict of the secondary link feedback resources is avoided. Furthermore, the terminal equipment can support the configuration of a plurality of mapping modes in the same resource pool, and the terminal equipment configured with different mapping modes can communicate with each other, thereby flexibly adapting to various communication requirements.

Description

Method, device and equipment for configuring feedback resources of secondary link

Technical Field

The present application relates to the field of communications, and in particular, to a method, an apparatus, and a device for configuring sidelink feedback resources.

Background

Currently, a Long Term Evolution (LTE) system supports Sidelink (SL, which may also be referred to as a side link, a Sidelink, or a side link) transmission. The SL is used for data transmission between User equipments (UEs, which may also be referred to as terminal equipments) without passing through a network side device. The method can be used for a New Radio (NR) system which supports a New NR system with a larger working bandwidth and an unsupported working frequency band of more than 6GHz and is not supported by an LTE system, and also supports Sidelink interface communication of direct communication between UE.

The UE sends secondary link Control Information (SCI) through a Physical secondary link Control Channel (PSCCH), and schedules transmission of a Physical secondary link Shared Channel (PSCCH) to send data. Transmission resources may be indicated in the SCI and reserved for future transmissions. In addition, a Physical Sidelink Feedback Channel (PSFCH) is used for feeding back the Sidelink Hybrid Automatic Repeat Request (HARQ) information, and further, after determining the Sidelink HARQ information, the UE may send the Sidelink HARQ information to a network side device (e.g., a base station) through a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH).

Therefore, in the Sidelink communication, multiple different PSFCH feedback timing sequences cannot be compatible, so that the understanding of each UE on the PSFCH resource configuration is inconsistent, which results in PSFCH resource conflict, and the receiving end cannot judge which transmitting end UE the current Sidelink HARQ information comes from.

Disclosure of Invention

An object of the embodiments of the present application is to provide a method, an apparatus, and a device for configuring a sidelink feedback resource, so as to solve a problem of a feedback resource conflict caused by inconsistent understanding of a feedback resource configuration by a UE.

In a first aspect, a method for configuring sidelink feedback resources is provided, which is applied to a terminal device, and the method includes:

acquiring resource configuration information; determining a secondary link feedback resource corresponding to a target mapping mode according to the resource configuration information; the target mapping mode is one of a plurality of mapping modes corresponding to the same resource pool, and the secondary link feedback resource corresponding to the target mapping mode is code domain multiplexed with the secondary link feedback resource corresponding to the first mapping mode in the plurality of mapping modes.

In a second aspect, an apparatus for configuring sidelink feedback resources is provided, the apparatus comprising:

the acquisition module is used for acquiring resource configuration information; the determining module is used for determining the secondary link feedback resources corresponding to the target mapping mode according to the resource configuration information; the target mapping mode is one of a plurality of mapping modes corresponding to the same resource pool, and the secondary link feedback resource corresponding to the target mapping mode is code domain multiplexed with the secondary link feedback resource corresponding to the first mapping mode of the plurality of mapping modes.

In a third aspect, a method for configuring sidelink feedback resources is provided, where the method is applied to a communication device, and the method includes:

sending resource configuration information to target terminal equipment, wherein the resource configuration information is used for the target terminal equipment to determine a secondary link feedback resource corresponding to a target mapping mode; the target mapping mode is one of a plurality of mapping modes corresponding to the same resource pool, and the secondary link feedback resource corresponding to the target mapping mode is code domain multiplexed with the secondary link feedback resource corresponding to the first mapping mode in the plurality of mapping modes.

In a fourth aspect, an apparatus for configuring sidelink feedback resources is provided, the apparatus comprising:

a sending module, configured to send resource configuration information to a target terminal device, where the resource configuration information is used for the target terminal device to determine a secondary link feedback resource corresponding to a target mapping manner; the target mapping mode is one of a plurality of mapping modes corresponding to the same resource pool, and the secondary link feedback resource corresponding to the target mapping mode and the secondary link feedback resource corresponding to the first mapping mode in the plurality of mapping modes are subjected to code domain multiplexing.

In a fifth aspect, a terminal device is provided, which includes: a memory, a processor and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, implement the steps of the method according to the first or third aspect.

A sixth aspect provides a network side device, comprising: a memory, a processor and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, implement the steps of the method according to the third aspect.

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

In an eighth aspect, a chip is provided, 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 run a terminal device or a network-side device program or instruction, implement the steps of the method according to the first aspect, or implement the steps of the method according to the third aspect.

In this embodiment, a terminal device that performs communication via a sidelink may determine, according to the obtained resource configuration information, a sidelink feedback resource corresponding to a target mapping scheme required for performing sidelink feedback, where the target mapping scheme is one of multiple mapping schemes corresponding to the same resource pool, and a sidelink feedback resource corresponding to the target mapping scheme may be code domain multiplexed with a sidelink feedback resource corresponding to a first mapping scheme, which is a different mapping scheme from another mapping scheme among the multiple mapping schemes. In this way, by adopting the code division multiplexing and other modes, the understanding of each terminal device on the configuration of the sidelink feedback resources can be kept consistent, and mapping coexistence with different feedback periods is realized, so that the conflict of the sidelink feedback resources is avoided. Furthermore, the terminal device can support the configuration of multiple mapping modes in the same resource pool, and the terminal devices configured with different mapping modes can communicate with each other. Meanwhile, the method can also support the terminal equipment to adopt the most appropriate feedback cycle to perform the secondary link feedback under different communication requirements, so as to achieve the purposes of adjusting the communication reliability, feeding back the time delay and realizing energy and power saving, thereby enabling the terminal equipment to flexibly adapt to various communication requirements.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 illustrates a block diagram of a wireless communication system to which embodiments of the present application are applicable;

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

FIG. 3 is a diagram illustrating a mapping scheme according to an embodiment of the present application;

FIG. 4 is a schematic diagram of another mapping scheme in the embodiment of the present application;

FIG. 5 is a diagram illustrating yet another mapping scheme in an embodiment of the present application;

FIG. 6 is a diagram illustrating another mapping method in an embodiment of the present application;

FIG. 7 is a diagram illustrating another mapping method in an embodiment of the present application;

FIG. 8 is a diagram illustrating yet another mapping scheme in an embodiment of the present application;

FIG. 9 is a diagram illustrating yet another mapping scheme in an embodiment of the present application;

FIG. 10 is a schematic diagram of yet another mapping scheme in an embodiment of the present application;

fig. 11 is a flowchart illustrating another method for configuring sidelink feedback resources according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a sidelink feedback resource configuration in an embodiment of the present application;

fig. 13 is a schematic structural diagram of a sidelink feedback resource configuration in an embodiment of the present application;

fig. 14 is a schematic structural diagram of a communication device in an embodiment of the present application;

fig. 15 is a schematic structural diagram of another terminal device in the embodiment of the present application;

fig. 16 is a schematic structural diagram of a network-side device in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it should be understood 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 inventive effort, shall fall within the scope of protection 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 will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced otherwise than as shown or described herein and the terms "first" and "second" used in the description may generally refer to one type of object and may not necessarily refer to the same number of objects, e.g., the first object may be one or more. In addition, "and/or" in the specification and claims means at least one of connected objects, and a character "/" generally indicates a relationship in which a front and rear related objects are an "or".

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 "in the embodiments of the present application"Network "is 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 6 th generation (6 th generation)^thGeneration, 6G) communication system.

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 terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, an ultra-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a Vehicle-mounted Device (Vehicle UE, VUE), a Pedestrian terminal (Pedestrian UE, PUE), and the like, and the Wearable Device includes: bracelets, earphones, glasses and the like. Note that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network, where the Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a Transmission Reception Point (TRP), or some other suitable term in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but a specific type of the Base Station is not limited.

The method for configuring sidelink feedback resources provided in the embodiments of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Referring to fig. 2, an embodiment of the present application provides a method for configuring sidelink feedback resources, where the method is executed by a terminal device, and the method includes the following steps:

step 201: and acquiring resource configuration information.

Optionally, in this step 201, the obtaining of the resource configuration information may be implemented by one of the following manners: protocol conventions, which may be understood as predefining the resource configuration information via a communication protocol; configuring network side equipment; pre-configuring; other terminal device indication.

Step 203: determining a secondary link feedback resource corresponding to a target mapping mode according to the resource configuration information; the target mapping mode is one of a plurality of mapping modes corresponding to the same resource pool, and the secondary link feedback resource corresponding to the target mapping mode is code domain multiplexed with the secondary link feedback resource corresponding to the first mapping mode in the plurality of mapping modes.

Optionally, the code domain multiplexing between the sidelink feedback resources corresponding to the plurality of mapping manners of the same resource pool is performed.

Optionally, each mapping manner may refer to a corresponding relationship between data received by the terminal device and the feedback resource.

Optionally, the secondary link feedback resource may include a PSFCH resource and/or other types of feedback resources. Further optionally, the feedback resources corresponding to different mapping manners in the multiple mapping manners may meet one of the following requirements:

(1) the feedback resources corresponding to the mapping schemes are all secondary link feedback channel PSFCH resources, and the format, the sequence type, or the base sequence (e.g., Pseudo-random sequence, Low-PAPR sequence) corresponding to the secondary link feedback channel PSFCH resources are the same, but the PSFCH feedback resources corresponding to the mapping schemes are multiplexed, for example, Code Division Multiplexing (CDM), Frequency Division Multiplexing (FDM), or Time Division Multiplexing (TDM), etc.

(2) The feedback resources respectively corresponding to different mapping modes are secondary link feedback channel PSFCH feedback resources, but the formats or sequence types or base sequences (e.g. Pseudo-random sequence, Low-PAPR sequence) corresponding to different secondary link feedback channel PSFCH resources are different.

(3) The feedback resources corresponding to different mapping modes are different, and include the feedback resources of the secondary link feedback channel PSFCH and the feedback resources of other channel types (e.g., PSXCH feedback resources).

Optionally, the difference between any two mapping manners in the plurality of mapping manners may be: at least one of the resource period N, the feedback delay k, the occupied resource, the format and the feedback channel which correspond to the two mapping modes are different. The resources occupied by the mapping manner may include at least one of occupied time domain resources, occupied frequency domain resources, and occupied code domain resources.

In an example, a resource cycle (or feedback cycle) of one mapping (which may be understood as a source mapping or a base mapping used by the terminal device) in the mapping manners is N1, and a resource cycle (or feedback cycle) of another mapping (which may be understood as a target mapping) is N2; through the scheme of the embodiment of the application, a new mapping coexisting with an original mapping can be generated on the basis of the original mapping, and other coexisting mappings can be included, including but not limited to a target mapping, which is described herein by taking two mappings as an example. Wherein:

(1) when N1< N2, that is, the feedback period is increased, the feedback power can be reduced, and power saving (power saving) can be achieved.

(2) When N1> N2, namely the feedback period is reduced, the feedback time delay can be reduced, and the communication reliability is improved.

(3) When N1 is equal to N2, the larger the k value is, the larger the feedback time delay is, and the lower the feedback power level is; wherein, a larger time delay means a lower UE implementation cost and processing power consumption, i.e., the UE can use a lower-end, more energy-saving chip.

Optionally, in the method for configuring a secondary link feedback resource according to the embodiment of the present application, the resource configuration information includes at least one of: a cyclic shift configuration; a cyclic shift offset value; configuring a base sequence; a channel or signal format; an overhead indication value; the type of the mapping mode; an index of the mapping manner; feeding back a resource period; and feeding back the time delay. That is, the sidelink feedback resource corresponding to the target mapping manner required by the terminal device can be accurately determined through one or more of the resource configuration information.

Optionally, in the method for configuring a secondary link feedback resource according to the embodiment of the present application, the resource configuration information may be indicated based on at least one of the following:

(1) sidelink Control Information (SCI); it is understood that the above-mentioned resource configuration information may be carried in the SCI.

(2) SCI format; it can be understood that the resource configuration information is implicitly indicated to the terminal device by SCIformat. For example, the UE corresponding to the first mapping implicitly indicates the value of the feedback resource period N to the UE corresponding to the target mapping through SCI format, and one possible implementation manner is: assuming that the N value corresponding to the first mapping is 2 and the implicit indication N value of SCI format 1-A is 2, when the UE corresponding to the target mapping receives SCI format 1-A, the N value in the mapping of the UE at the opposite end is 2.

(3) A secondary link System Information Block (SIB); it is to be understood that the above configuration information may be carried in the sidelink SIB.

(4) A Medium Access Control (MAC) Control unit (CE); it is to be understood that the above configuration information may be carried in the MAC CE.

(5) MAC Protocol Data Unit (PDU); it is to be understood that the configuration information may be carried in a mac pdu.

(6) A PC5 Radio Resource Control (RRC) request; it will be appreciated that the configuration information described above may be carried in an RRC request sent over the PC5 interface.

(7) A connection establishment message; it is to be understood that the configuration information may be carried in a connection establishment message, where the connection establishment message may include at least sl-ConfigDedicatedNR, SIB12, or sildelinkpreconfignr.

Optionally, in the method for configuring sidelink feedback resources in this embodiment of the application, in step 203, when the resource configuration information is different objects, the following specific embodiments may be implemented, but are not limited to this:

detailed description of the preferred embodiment

In this embodiment one, the resource configuration information optionally includes cyclic shift configuration, and the step 203 may be specifically executed as follows:

step a: and performing cyclic shift according to the cyclic shift configuration in the resource configuration information, and determining the secondary link feedback resource corresponding to the target mapping mode. It can be understood that, in this embodiment, based on the obtained cyclic shift configuration associated with the target mapping manner to perform corresponding cyclic shift, the sidelink feedback resource corresponding to the target mapping manner required by the terminal device may be accurately determined, where the sidelink feedback resource corresponding to the target mapping manner and the sidelink feedback resource corresponding to the first mapping manner are code domain resources whose corresponding portions are the same or completely different.

Further optionally, for different situations of cyclic shift configuration in the obtained resource configuration information, the step a may be executed as different specific contents correspondingly, which may be seen in the following examples:

in an example one of the first specific embodiment, in the obtained cyclic shift configuration, a target cyclic shift configuration corresponding to a target mapping manner is different from a first cyclic shift configuration corresponding to a first mapping manner that is a specific mapping manner among a plurality of mapping manners, in this case, the step a may be performed as follows:

and under the condition that the target cyclic shift configuration corresponding to the target mapping mode in the resource configuration information is different from the first cyclic shift configuration corresponding to the first mapping mode, performing cyclic shift according to a cyclic shift value in the target cyclic shift configuration, and determining the sidelink feedback resource corresponding to the target mapping mode. That is, when the target mapping manner and the first mapping manner correspond to different cyclic shift configurations, the secondary link feedback resource corresponding to the target mapping manner may be determined directly according to the cyclic shift value selected from the target cyclic shift configuration corresponding to the acquired target mapping manner.

In example two of the first specific embodiment, in the obtained cyclic shift configuration, the target cyclic shift configuration corresponding to the target mapping manner is the same as the first cyclic shift configuration corresponding to the first mapping manner, and in this case, the step a may be executed as follows:

determining a second cyclic shift configuration different from a target cyclic shift configuration under the condition that the target cyclic shift configuration corresponding to the target mapping mode in the resource configuration information is the same as a first cyclic shift configuration corresponding to the first mapping mode; and performing cyclic shift according to the cyclic shift value in the second cyclic shift configuration, and determining the secondary link feedback resource corresponding to the target mapping mode. That is, when the target mapping scheme and the first mapping scheme correspond to the same cyclic shift configuration, a second cyclic shift configuration, which is a different cyclic shift configuration from the first cyclic shift configuration, may be selected for the target mapping scheme, and the sidelink feedback resource corresponding to the target mapping scheme may be determined according to the cyclic shift value selected from the second cyclic shift configuration.

In example three of the first specific embodiment, in the obtained cyclic shift configuration, the target cyclic shift configuration corresponding to the target mapping manner is the same as the first cyclic shift configuration corresponding to the first mapping manner, and at this time, the step a may be executed as follows:

and under the condition that the target cyclic shift configuration corresponding to the target mapping mode in the resource configuration information is the same as the cyclic shift configuration corresponding to the first mapping mode, performing cyclic shift according to a target cyclic shift offset value and a cyclic shift value in the target cyclic shift configuration, and determining the secondary link feedback resource corresponding to the target mapping mode. That is, when the target mapping manner and the first mapping manner correspond to the same cyclic shift configuration and the acquired resource configuration information further includes a cyclic shift offset value (CSoffset), the cyclic shift may be performed according to the target cyclic shift offset value and the cyclic shift value in the target cyclic shift configuration together, so as to determine the sidelink feedback resource corresponding to the target mapping manner.

Optionally, the target cyclic shift offset value is indicated by protocol agreement, pre-configuration, network side device configuration, or other terminal devices.

Optionally, for the cases in the second and third examples, where the target cyclic shift configuration corresponding to the target mapping manner is the same as the first cyclic shift configuration corresponding to the first mapping manner, in this case, the cyclic shift configurations corresponding to the multiple mapping manners may all be the same.

In an example four of the first specific embodiment, the step a may be further specifically executed as follows:

and according to the cyclic shift configuration in the resource configuration information, cyclically shifting a sequence of a first secondary link feedback resource corresponding to the target mapping mode, and determining a secondary link feedback resource corresponding to the target mapping mode, wherein the first secondary link feedback resource is a resource which conflicts with the secondary link feedback resource corresponding to the first mapping mode in the secondary link feedback resources corresponding to the target mapping mode. That is, the obtained cyclic shift configuration may be used to cyclically shift the sequence of the part of the resources where the target mapping scheme and the first mapping scheme conflict with each other, so as to determine the secondary link feedback resource corresponding to the target mapping scheme. For example, the UE selects a cyclic shift value from a selectable range of cyclic shift values, and cyclically shifts the base sequence of the conflicting frequency domain feedback resources, where the cyclic shift values of the non-conflicting frequency domain resources between different mapping may be the same or different. Further, U E may randomly select a cyclic shift value within the selectable range of cyclic shift values.

Optionally, the resource of the conflict is specifically a frequency domain resource corresponding to different feedback information in the secondary link feedback resource corresponding to the target mapping manner and the secondary link feedback resource corresponding to the first mapping manner. In an example, the first mapping and the second mapping are respectively shown in fig. 3 and fig. 4, and here, the PSFCH resources corresponding to the two mapping overlap each other in the frequency domain and occupy the same number of RBs, which are 16 RBs. The feedback resources corresponding to the PSSCH1 and the PSSCH3 collide, and the collision part occupies 2 RBs.

In an example five of the first specific embodiment, the step a may be further specifically executed as follows:

and according to the cyclic shift configuration in the resource configuration information, cyclically shifting the sequences of all the secondary link feedback resources corresponding to the target mapping mode, and determining the secondary link feedback resources corresponding to the target mapping mode. That is to say, through the obtained cyclic shift configuration, the sequences of all the sidelink feedback resources corresponding to the target mapping manner can be cyclically shifted to determine the sidelink feedback resources corresponding to the target mapping manner. For example, the UE selects a cyclic shift value from a selectable range of cyclic shift values, and cyclically shifts the base sequences of all frequency domain feedback resources. Further, the UE may randomly select a cyclic shift value among the selectable range of cyclic shift values.

Further optionally, in the first embodiment, when the terminal device performs HARQ feedback by using a first feedback mechanism, and a cyclic shift in the resource configuration information is configured as a cyclic shift pair, one cyclic shift value in the cyclic shift pair is used to feed back a sequence corresponding to negative acknowledgement NACK, and the other cyclic shift value is used to feed back a sequence corresponding to positive acknowledgement ACK. It can be understood that, if the obtained cyclic shifts are configured as cyclic shift pairs, one cyclic shift value in each cyclic shift pair is used for feeding back a sequence of NACK, and the other cyclic shift value is used for feeding back a sequence of ACK; for example, the cyclic shift pair obtained by the UE is configured as {1,3,5}, and then the cyclic shift value {1,3,5} is used for feeding back the sequence of NACK, and the cyclic shift value {1+6,3+6,5+6} ═ 7,9,11} is used for feeding back the sequence of ACK.

Further optionally, in the first embodiment, in a case that the terminal device performs HARQ feedback by using a second feedback mechanism, and a cyclic shift in the resource configuration information is configured as a cyclic shift pair, a cyclic shift value in the cyclic shift pair is used for feeding back a sequence corresponding to NACK. That is, any cyclic shift value in the cyclic shift pair can be used to feed back a sequence corresponding to NACK. It can be understood that, if the obtained cyclic shifts are configured as cyclic shift pairs, any one cyclic shift value in each cyclic shift pair may be used for feeding back a sequence of NACK, and then, further, one of the cyclic shift values in the cyclic shift pairs may be used for feeding back a sequence of NACK; for example, the cyclic shift pair obtained by the UE is configured as {1,3,5}, and then the cyclic shift values {1,3,5,7,9,11} are used for feeding back the sequence of NACKs.

For example, when different mapping obtains different cyclic shift configurations, the cyclic shift configuration obtained by the UE is a cyclic shift pair, the cyclic shift pair obtained by the UE corresponding to the first mapping according to the network configuration is {0,2,4}, and the cyclic shift pair obtained by the UE corresponding to the target mapping according to the network configuration is {1,3,5 }. Optionally, when the UE performs cyclic shift on all the sequences of the feedback resources and feeds back NACK or ACK, the UE corresponding to the target mapping randomly selects one cyclic shift value, for example, 3, from {1,3,5}, and then the UE performs cyclic shift on all the sequences of the 16RB feedback resources, where the cyclic shift value corresponding to the sequence that sends NACK is 3, and the cyclic shift value corresponding to the sequence that sends ACK is 9. Optionally, when the UE performs cyclic shift on all sequences of the feedback resources and only feeds back NACK, the UE corresponding to the target mapping randomly selects one cyclic shift value in {1,3,5,7,9,11}, for example, 7, and then the UE performs cyclic shift on all sequences of the 16RB feedback resources and the cyclic shift value corresponding to the sequence that sends NACK is 7.

For another example, when different mapping obtains the same cyclic shift configuration of the resource pool, the cyclic shift configuration obtained by the UE is a cyclic shift pair, and the UE corresponding to the first mapping and the target mapping obtains the cyclic shift pair configuration of the current resource pool as {0,2,4} according to the network configuration. Further, since the full set of cyclic shift pairs is {0,1,2,3,4,5}, the cyclic shift pairs not belonging to the current resource pool configuration are {1,3,5 }. Optionally, when the UE performs cyclic shift on the sequence of the collided feedback resource and feeds back NACK or ACK, the UE corresponding to the target mapping randomly selects one cyclic shift value in {1,3,5}, for example, 3, then the UE performs cyclic shift on the sequence of the collided 2RB feedback resource, and the cyclic shift value corresponding to the sequence sending NACK is 3 and the cyclic shift value corresponding to the sequence sending ACK is 9. The cyclic shift value of the 14RB feedback resource that does not collide at this time may be the same as or different from the cyclic shift value of the first mapping. Optionally, when the UE performs cyclic shift on all the sequences of the feedback resources and feeds back NACK or ACK, the UE corresponding to the target mapping randomly selects one cyclic shift value, for example, 3, from {1,3,5}, and then the UE performs cyclic shift on all the sequences of the 16RB feedback resources, where the cyclic shift value corresponding to the sequence that sends NACK is 3, and the cyclic shift value corresponding to the sequence that sends ACK is 9. Optionally, when the UE performs cyclic shift on the sequence of the collided feedback resource and only feeds back NACK, the UE corresponding to the target mapping randomly selects one cyclic shift value, for example, 7, from {1,3,5,7,9,11}, and then the UE performs cyclic shift on the sequence of the collided 2RB feedback resource and sends the cyclic shift value 7 corresponding to the sequence of NACK. The cyclic shift value of the 14RB feedback resource that does not collide at this time may be the same as or different from the cyclic shift value of the first mapping. Optionally, when the UE performs cyclic shift on all sequences of the feedback resources and only feeds back NACK, the UE corresponding to the target mapping randomly selects one cyclic shift value, for example, 7, from {1,3,5,7,9,11}, and then the UE performs cyclic shift on all sequences of the 16RB feedback resources and the cyclic shift value corresponding to the sequence that sends NACK is 7.

For another example, when the cyclic shifts obtained by the UE are configured as cyclic shift pairs, the cyclic shift pair configurations obtained by the UE corresponding to the first mapping and the target mapping according to the network configuration are both {0,2,4}, and the UE corresponding to the target mapping is preconfigured with a cyclic shift offset value of 1. The actually selectable cyclic shift pair for target mapping at this time is {0+1,2+1,4+1} - {1,3,5 }. Optionally, when the UE performs cyclic shift on all sequences of the feedback resources and feeds back NACK or ACK, the UE corresponding to the target mapping randomly selects one cyclic shift value, for example, 3, from {1,3,5}, and then the UE performs cyclic shift on all sequences of the 16RB feedback resources, where the cyclic shift value corresponding to the sequence that sends NACK is 3, and the cyclic shift value corresponding to the sequence that sends ACK is 9. Optionally, when the UE performs cyclic shift on all sequences of the feedback resources and only feeds back NACK, the UE corresponding to the target mapping randomly selects one cyclic shift value in {1,3,5,7,9,11}, for example, 7, and then the UE performs cyclic shift on all sequences of the 16RB feedback resources and the cyclic shift value corresponding to the sequence that sends NACK is 7.

Detailed description of the invention

In this embodiment two, the resource configuration information optionally includes a base sequence configuration, and the step 203 may be specifically executed as follows:

step b: and determining the secondary link feedback resources corresponding to the target mapping mode according to the base sequence configuration in the resource configuration information. It can be understood that, in this embodiment, based on the obtained base sequence in the base sequence configuration associated with the target mapping manner, the sidelink feedback resource corresponding to the target mapping manner required by the terminal device may be accurately determined. The secondary link feedback resource corresponding to the target mapping mode and the secondary link feedback resource corresponding to the first mapping mode correspond to code domain resources with the same or completely different parts.

Further optionally, for different situations of the obtained base sequence configuration, the step b may be executed as different specific contents correspondingly, which may be shown in the following example:

in the first example of the second specific embodiment, in the obtained cyclic shift configuration, the target base sequence configuration corresponding to the target mapping scheme is different from the first base sequence configuration corresponding to the first mapping scheme, and in this case, the step b may be executed as follows:

and under the condition that the target base sequence configuration corresponding to the target mapping mode in the resource configuration information is different from the first base sequence configuration corresponding to the first mapping mode, determining the secondary link feedback resource corresponding to the target mapping mode according to the base sequence selected from the target base sequence configuration. That is, when the target mapping manner and the first mapping manner correspond to different base sequence configurations, the secondary link feedback resource corresponding to the target mapping manner may be determined directly according to the obtained target base sequence configuration corresponding to the target mapping manner.

In example two of the second specific embodiment, in the obtained cyclic shift configuration, the target base sequence configuration corresponding to the target mapping scheme is the same as the first base sequence configuration corresponding to the first mapping scheme, and in this case, the step b may be performed as follows:

determining a second base sequence configuration different from the target base sequence configuration under the condition that the target base sequence configuration corresponding to the target mapping mode in the resource configuration information is the same as the first base sequence configuration corresponding to the first mapping mode; and determining the secondary link feedback resource corresponding to the target mapping mode according to the base sequence selected in the second base sequence configuration. That is, when the target mapping manner and the first mapping manner correspond to the same base sequence configuration, a base sequence configuration different from the first base sequence configuration, that is, a second base sequence configuration, may be selected for the target mapping manner, and the secondary link feedback resource corresponding to the target mapping manner may be determined according to the second base sequence configuration.

In a third example of the second specific embodiment, the step b may be further specifically executed as follows:

according to the base sequence configuration in the resource configuration information, applying a base sequence of a target type to a second secondary link feedback resource corresponding to the target mapping mode, and determining a secondary link feedback resource corresponding to the target mapping mode, wherein the second secondary link feedback resource is a resource which conflicts with the secondary link feedback resource corresponding to the first mapping mode in the secondary link feedback resource corresponding to the target mapping mode; and the base sequence of the target type is different from the base sequence of the first type corresponding to the first mapping mode. That is, by the obtained base sequence configuration, different types of base sequences may be applied to a part of resources where a conflict occurs between the target mapping manner and the current source mapping manner of the terminal device, so as to determine the secondary link feedback resources corresponding to the target mapping manner. For example, the UE selects a base sequence from the selectable base sequence range, and applies the selected base sequence to the conflicted resource, in which case, the cyclic shift values of the non-conflicted frequency domain resources between different mapping may be the same or may also be different. Further, U E may randomly select a motif sequence within this alternative base sequence range.

Optionally, the first secondary link feedback resource is specifically a resource where a collision occurs in a frequency domain for a secondary link feedback resource corresponding to the first mapping mode among secondary link feedback resources corresponding to the target mapping mode.

In an example four of the first specific embodiment, the step b may be further specifically executed as follows:

according to the base sequence configuration in the resource configuration information, applying the base sequence of the target type to all the secondary link feedback resources corresponding to the target mapping mode, and determining the secondary link feedback resources corresponding to the target mapping mode; and the base sequence of the target type is different from the base sequence of the first type corresponding to the first mapping mode. That is, different types of base sequences may be applied to all the secondary link feedback resources corresponding to the target mapping manner through the obtained base sequence configuration, so as to determine the secondary link feedback resources corresponding to the target mapping manner. For example, the UE selects a base sequence among a range of selectable base sequences to apply to the entire frequency-domain feedback resources. Further, the UE may randomly select a base sequence among the selectable range of base sequences.

For example, when different mapping obtains different base sequence configurations, the base sequence obtained by the UE corresponding to the first mapping according to the network configuration is a ZC sequence, and the base sequence obtained by the UE corresponding to the target mapping according to the network configuration is an m sequence, so that the UE corresponding to the target mapping selects the m sequence to transmit HARQ-ACK information. Optionally, the UE uses m-sequences for all 16RB feedback resources.

For another example, when different mapping obtains the same resource pool base sequence configuration, the UE corresponding to the first mapping and the target mapping obtains the base sequence configuration of the current resource pool as a ZC sequence according to the network configuration, and the optional base sequence preconfigured by the UE includes a ZC sequence and an m sequence, and then the UE corresponding to the target mapping selects the m sequence to send HARQ-ACK information. Optionally, the UE uses the m-sequence for the collided 2RB feedback resources, and the remaining non-collided 14RB feedback resources use the ZC sequence. Optionally, the UE uses m-sequences for all 16RB feedback resources.

Detailed description of the preferred embodiment

In a third embodiment of the present invention, the resource configuration information optionally includes a channel or a signal format, and step 203 may be specifically implemented as the following specific content:

step c: and determining the secondary link feedback resources corresponding to the target mapping mode according to the channel or signal format in the resource configuration information. It can be understood that, in this embodiment, based on the obtained channel or signal format associated with the target mapping manner, the sidelink feedback resource corresponding to the target mapping manner required by the terminal device may be accurately determined. The secondary link feedback resource corresponding to the target mapping mode and the secondary link feedback resource corresponding to the first mapping mode correspond to the same or completely different code domain resources.

Further optionally, the obtained channel or signal format is a target channel or signal format of the sidelink feedback resource corresponding to the target mapping manner, at this time, the step c may be specifically implemented as follows:

determining a secondary link feedback resource corresponding to the target mapping mode according to a target channel or signal format; and the target channel or signal format is the channel or signal format where the sidelink feedback resource corresponding to the target mapping mode is located.

Further optionally, the step of determining the sidelink feedback resource corresponding to the target mapping manner according to the target channel or the signal format may be implemented as one of the following examples:

in an example one of the third specific embodiment, the secondary link feedback resource corresponding to the target mapping manner is determined according to the sequence length of the target channel or signal format, where the sequence length of the target channel or signal format is different from the sequence length of the channel or signal format corresponding to the first mapping manner. For example, the UE sets the sequence length of PSFCHformat 0 to

I.e. the length of the sequence of the target channel or signal format, which is different from the length of the sequence corresponding to the first mapping. Wherein m is an integer greater than 0,

as the number of subcarriers in each RB.

For another example, the UE corresponding to the target mapping uses PSFCHformat 0 to send HARQ-ACK information, and the sequence length of format 0 is set to be

At this time, the length of the sequence used by the first mapping is a default value, i.e.

In example two of the third specific embodiment, according to the type of the target channel or the signal format, determining a secondary link feedback resource corresponding to the target mapping manner, where one resource set of the secondary link feedback resource corresponding to the target mapping manner is used to carry multiple HARQ feedback information, or multiple resource sets of the secondary link feedback resource corresponding to the target mapping manner are used to carry multiple HARQ feedback information together; the plurality of HARQ feedback information corresponds to a plurality of opposite terminal equipment one by one, and the resource set is associated with time-frequency domain resources corresponding to a preset time slot and a preset sub-channel. For example, in PSFCHformat X, the UE maps the reception feedback of data for all TX UEs to the same PSFCH resource set, i.e., one PSFCH resource set carries harq-ACK feedback information for multiple TXUEs.

For another example, the UE corresponding to the target mapping sends HARQ-ACK information using PSFCHformat 1, where the format 1 simultaneously carries the reception feedback on the PSSCH1, the PSSCH2, the PSSCH3 and the PSSCH4, and if the UE corresponding to the target mapping successfully receives the data from all TXUEs, the HARQ-ACK information a with a feedback length of 4bits is sent back₀,a₁,a₂,a₃The values are 1,1, respectively.

That is to say, one resource set of the secondary link feedback resources corresponding to the target mapping manner may carry multiple HARQ feedback information, for example, 1 resource set is used to carry HARQ feedback information of 4 users. Or, multiple HARQ feedback information may be carried by multiple resource sets of the secondary link feedback resource corresponding to the target mapping manner as a whole, for example, HARQ feedback information of 4 users is carried by 2 resource sets as a whole.

In the method for allocating sidelink feedback resources according to the embodiment of the present application, when the sidelink feedback resources corresponding to the target mapping scheme are determined according to the resource allocation information, the resource allocation information may be a combination of different types of information, or the like, in addition to the schemes described in the above specific embodiments. The overhead indication value is used to indicate the overhead of the sidelink feedback resource of the target mapping manner, for example, the overhead of the PSFCH resource and/or the overhead of the resource set may be specifically indicated.

In an example, when the resource configuration information indicates an overhead indication value, the UE corresponding to the first mapping indicates the overhead indication value to the UE corresponding to the second mapping through an SCI, so as to indicate the frequency domain resource overhead of the second mapping, and a possible implementation manner is: indicating through SCI format 1-A, namely adding an indication field PSFCHoverhead in SCI format 1-A and occupying a₀,a₁The total 2bits are used for indicating a percentage value, and the UE of the second mapping can calculate the number of PSFCH resources of the second mapping according to the obtained percentage value, as shown in table 1 below:

TABLE 1

a₀,a₁	Overhead value Overhead
		0,0	25％
0,1	50％
		1,0	75％
1,1	100％

In another example, when the resource configuration information indicates a value of a feedback delay k, the UE corresponding to the first mapping indicates the value of k to the UE corresponding to the second mapping through the SCI, and one possible implementation manner is: the indication of the index corresponding to the k value is realized through the indication domain 2nd-stage SCI format of the SCI format 1-A, and a is occupied₀,a₁A total of 2bits, as shown in table 2 below:

TABLE 2

2nd-stage SCI format threshold	2nd-stage SCI format
		00	SCI format 2-A
01	SCI format 2-B
		10	k＝2
11	k＝3

For example, if the k value corresponding to the first mapping is 2, then 2^nd-index of stage SCI format indication is 2, setting a₀,a₁Corresponding values are respectively1,0。

In another example, when the resource configuration information indicates values of a feedback resource period N and a feedback delay k, the UE corresponding to the first mapping indicates the values of N and k to the UE corresponding to the second mapping through SCI at the same time, and one possible implementation manner is: using Reserved (Reserved) bit indication, occupy a₀,a₁,a₂,a₃And 4bits in total, which is used to indicate the index corresponding to the combination of the N value and the k value, as shown in table 3 below:

TABLE 3

Index	N	k
				0	1	2
1	1	2
			2	2	2
3	2	2
			4	4	2
5	4	3
			6	8	3
7	8	3
			8	16	3
9	16	3

For example, if the first mapping corresponds to an N value of 2 and a k value of 2, i.e. the index to be indicated is 3, then a is set₀,a₁,a₂,a₃The corresponding values are 0,0,1, respectively.

Further optionally, in the sidelink feedback resource configuration method according to the embodiment of the present application, the resource configuration information may be used to determine a target mapping manner, and may also be used to determine a mapping manner corresponding to another terminal device.

Optionally, in the method for configuring a secondary link feedback Resource in an embodiment of the present application, when the number of Resource Blocks (RBs) of a secondary link feedback Resource corresponding to a second mapping manner of the multiple mapping manners is the same as the number of Resource blocks of a secondary link feedback Resource corresponding to a third mapping manner of the multiple mapping manners, the number of Resource blocks in a Resource set corresponding to the second mapping manner and the number of Resource blocks in a Resource set corresponding to the third mapping manner satisfy one of the following conditions:

(1) and if the first feedback period corresponding to the second mapping mode is smaller than the second feedback period corresponding to the third mapping mode, the number of resource blocks in the resource set corresponding to the third mapping mode is smaller than the number of resource blocks in the resource set corresponding to the second mapping mode.

(2) And if the first feedback period is greater than the second feedback period, the number of resource blocks in the resource set corresponding to the third mapping mode is greater than the number of resource blocks in the resource set corresponding to the second mapping mode.

(3) And if the first feedback period is equal to the second feedback period, the number of resource blocks in the resource set corresponding to the third mapping mode is equal to the number of resource blocks in the resource set corresponding to the second mapping mode.

The second mapping mode and the third mapping mode are any two different mapping modes in the multiple mapping modes, and the resource set is associated with time-frequency domain resources corresponding to a preset time slot and a preset sub-channel.

In an example, the numbers of RBs of the PSFCH resources of the second mapping and the third mapping are the same and are both 16 RBs, the number of RBs of the resource set in fig. 5 is 16/4-4, the number of RBs of the resource set in fig. 6 is 16/8-2, that is, the number of RBs of the resource set in the third mapping is smaller than the number of RBs of the resource set in the second mapping.

Optionally, in the method for configuring a secondary link feedback resource according to the embodiment of the present application, when the number of resource blocks in a resource set corresponding to a fourth mapping manner of the multiple mapping manners is the same as the number of resource blocks in a resource set corresponding to a fifth mapping manner of the multiple mapping manners, the number of resource blocks of the secondary link feedback resource corresponding to the fourth mapping manner and the number of resource blocks of the secondary link feedback resource corresponding to the fifth mapping manner satisfy one of the following conditions:

(1) if the third feedback period corresponding to the fourth mapping mode is smaller than the fourth feedback period corresponding to the fifth mapping mode, the number of resource blocks of the sidelink feedback resource corresponding to the fifth mapping mode is greater than the number of resource blocks in the resource set corresponding to the fourth mapping mode.

(2) If the third feedback period is greater than the fourth feedback period, the number of resource blocks of the sidelink feedback resource corresponding to the fifth mapping mode is less than the number of resource blocks in the resource set corresponding to the fourth mapping mode.

(3) And if the third feedback period is equal to the fourth feedback period, the number of resource blocks of the sidelink feedback resource corresponding to the fifth mapping mode is equal to the number of resource blocks in the resource set corresponding to the fourth mapping mode.

The fourth mapping mode and the fifth mapping mode are any two different mapping modes in the multiple mapping modes, and the resource set is associated with time-frequency domain resources corresponding to a preset time slot and a preset sub-channel.

In one example, the number of RBs in the resource sets of the fourth mapping and the fifth mapping is the same, and both are 1RB, then the number of RBs in the PSFCH resource in fig. 7 is 4 × 1 — 4, and the number of RBs in the PSFCH resource in fig. 8 is 8 × 1 — 8, that is, the number of RBs in the PSFCH resource in the fifth mapping is greater than the number of RBs in the PSFCH resource in the fourth mapping.

Optionally, in the method for configuring sidelink feedback resources in the embodiment of the present application, the following may also be included:

acquiring a time domain offset value; performing time domain offset on the time domain resource corresponding to a sixth mapping mode in the plurality of mapping modes according to the time domain offset value; and the time domain resource corresponding to a seventh mapping mode in the plurality of mapping modes and the time domain resource corresponding to the sixth mapping mode after time domain offset meet the target position relationship, and the time domain resource corresponding to the seventh mapping mode is not subjected to time domain offset.

It can be understood that the time domain resource corresponding to any one of the plurality of mapping manners may be time domain shifted according to the received time domain shift value, and the time domain resource corresponding to another mapping manner different from the mapping manner in which the time domain shift is performed among the plurality of mapping manners and the time domain resource corresponding to the mapping manner in which the time domain shift is performed may satisfy a certain time domain position relationship.

Optionally, the target position relationship includes one of:

(1) and aligning the even time slots corresponding to the sixth mapping mode after time domain shift with the even time slots corresponding to the seventh mapping mode.

(2) And aligning the even time slot corresponding to the sixth mapping mode after time domain shift with the odd time slot corresponding to the seventh mapping mode.

(3) The time slot starting point (for example, time slot 0) corresponding to the sixth mapping manner after the time domain shift is aligned with the time slot starting point corresponding to the seventh mapping manner.

In an example, a time domain relationship between a sixth mapping and a seventh mapping is shown in fig. 9, where the upper half of the graph is the sixth mapping, the lower half is the seventh mapping, a UE corresponding to the sixth mapping obtains a time domain offset value t _ offset of 2slots according to network configuration, and if the sixth mapping is time domain offset by using a slot index-t _ offset manner, a time domain relationship after offset is shown in fig. 10, where a slot 0 of the sixth mapping and a slot 0 of the seventh mapping are aligned at this time.

It should be noted that, in the method for configuring secondary link feedback resources in the embodiment of the present application, taking a secondary link feedback resource as a PSFCH resource as an example, two mapping rules exist between a PSSCH and a corresponding PSFCH feedback resource:

and Option 1: and the HARQ-ACK information is only transmitted on the PSFCH feedback resource corresponding to the initial sub-channel in the sub-channels occupied by the PSSCH data.

And Option 2: and the HARQ-ACK information is transmitted on the PSFCH feedback resources corresponding to all sub-channels occupied by the PSSCH data.

Referring to fig. 11, an embodiment of the present application provides a sidelink feedback resource configuration method, which is executed by a communication device, where the communication device may include a network device or one of two terminal devices that communicate via a sidelink, and the method includes the following steps:

step 301: sending resource configuration information to target terminal equipment, wherein the resource configuration information is used for the target terminal equipment to determine a secondary link feedback resource corresponding to a target mapping mode; the target mapping mode is one of a plurality of mapping modes corresponding to the same resource pool, and the secondary link feedback resource corresponding to the target mapping mode is code domain multiplexed with the secondary link feedback resource corresponding to the first mapping mode of the plurality of mapping modes.

In this embodiment of the present application, resource configuration information may be provided for a target terminal device that performs communication through a sidelink, so that the target terminal device may determine, according to the resource configuration information, a sidelink feedback resource corresponding to a target mapping manner required for performing sidelink feedback, where the target mapping manner is one of multiple mapping manners corresponding to a same resource pool, and the sidelink feedback resource corresponding to the target mapping manner may be code domain multiplexed with a sidelink feedback resource corresponding to a first mapping manner that is another different mapping manner among the multiple mapping manners. Therefore, by adopting modes such as code division multiplexing and the like, understanding of each terminal device on the configuration of the feedback resources of the secondary link can be kept consistent, mapping coexistence of mapping modes with different feedback periods is realized, and collision of the feedback resources of the secondary link is avoided. Furthermore, the terminal device can support the configuration of a plurality of mapping modes in the same resource pool, and the terminal devices configured with different mapping modes can communicate with each other. Meanwhile, the method can also support the terminal equipment to adopt the most appropriate feedback cycle to perform the secondary link feedback under different communication requirements, so as to achieve the purposes of adjusting the communication reliability, feeding back the time delay and realizing energy and power saving, thereby enabling the terminal equipment to flexibly adapt to various communication requirements.

Optionally, for the relevant description of each mapping manner of the multiple mapping manners corresponding to the same resource pool and the corresponding sidelink feedback resource, the relevant content is consistent with the relevant content in the above embodiment of the sidelink feedback resource configuration method executed by the terminal device, and details are not repeated here.

Optionally, in the method for configuring a secondary link feedback resource according to the embodiment of the present application, the resource configuration information includes at least one of: a cyclic shift configuration; a cyclic shift offset value; configuring a base sequence; a channel or signal format; an overhead indication value; the type of the mapping mode; an index of the mapping manner; feeding back a resource period; and feeding back the time delay. That is, one or more of the resource configuration information may be provided for the target terminal device, so that the target terminal device may accurately determine the secondary link feedback resource corresponding to the required target mapping manner.

indicating the resource configuration information based on at least one of: secondary link control information SCI; SCI format; a secondary link system information block, SIB; a Media Access Control (MAC) control unit (CE); a MAC protocol data unit PDU; PC5 radio resource control, RRC, request; a connection setup message. Optionally, the description of the manner of indicating the resource configuration information is consistent with the related content in the embodiment of the sidelink feedback resource configuration method executed by the terminal device, and is not described herein again.

Optionally, in the method for configuring sidelink feedback resources in this embodiment of the application, in step 301, when the resource configuration information is different objects, the following specific embodiments may be implemented, but are not limited to this:

detailed description of the preferred embodiment

In this embodiment one, the resource configuration information optionally includes cyclic shift configuration, and the step 301 may be specifically executed as follows:

and sending a cyclic shift configuration to the target terminal equipment, wherein the cyclic shift configuration is used for determining a secondary link feedback resource corresponding to the target mapping mode. It can be understood that, in this embodiment, the target terminal device may be configured to perform corresponding cyclic shift by providing a cyclic shift configuration associated with the target mapping manner, so that it may accurately determine the sidelink feedback resource corresponding to the required target mapping manner, where the sidelink feedback resource corresponding to the target mapping manner and the sidelink feedback resource corresponding to the first mapping manner correspond to code domain resources that are partially the same or completely different.

Further optionally, when the resource configuration information includes a cyclic shift configuration, and a target cyclic shift configuration in the cyclic shift configuration is different from a first cyclic shift configuration, a cyclic shift value in the target cyclic shift configuration is used to determine a secondary link feedback resource corresponding to the target mapping manner; wherein the target cyclic shift configuration corresponds to the target mapping manner, and the first cyclic shift configuration corresponds to the first mapping manner.

Further optionally, when the resource configuration information includes a cyclic shift configuration, and a target cyclic shift configuration in the cyclic shift configuration is the same as the first cyclic shift configuration, the sent cyclic shift configuration further includes a second cyclic shift configuration different from the target cyclic shift configuration, and a cyclic shift value in the second cyclic shift configuration is used to determine a secondary link feedback resource corresponding to the target mapping manner; wherein the target cyclic shift configuration corresponds to the target mapping manner, and the first cyclic shift configuration corresponds to the first mapping manner.

Further optionally, when the resource configuration information includes a cyclic shift configuration, and a target cyclic shift configuration in the cyclic shift configuration is the same as the first cyclic shift configuration, a cyclic shift value in the target cyclic shift configuration is used by the target terminal device to determine, according to a target cyclic shift offset value and a cyclic shift value in the target cyclic shift configuration, a secondary link feedback resource corresponding to the target mapping manner; wherein the target cyclic shift configuration corresponds to the target mapping manner, and the first cyclic shift configuration corresponds to the first mapping manner.

The target cyclic shift offset value may be further provided to the target terminal device by the communication device, and of course, may also be agreed or preconfigured to the target terminal device by a protocol.

Further optionally, the cyclic shift configuration in the resource configuration information is used for the target terminal device to perform one of the following operations:

(1) and circularly shifting the sequence of the first secondary link feedback resource corresponding to the target mapping mode, and determining the secondary link feedback resource corresponding to the target mapping mode, wherein the first secondary link feedback resource is a resource which conflicts with the secondary link feedback resource corresponding to the first mapping mode.

(2) And circularly shifting the sequences of all the secondary link feedback resources corresponding to the target mapping mode, and determining the secondary link feedback resources corresponding to the target mapping mode.

Further optionally, when the target terminal device performs HARQ feedback using a first feedback mechanism and the transmitted cyclic shifts are configured as cyclic shift pairs, one cyclic shift value in the cyclic shift pair is used to feed back a sequence corresponding to negative acknowledgement NACK, and the other cyclic shift value is used to feed back a sequence corresponding to positive acknowledgement ACK.

Further optionally, when the target terminal device performs HARQ feedback by using a second feedback mechanism and the sent cyclic shift is configured as a cyclic shift pair, a cyclic shift value in the cyclic shift pair is used to feed back a sequence corresponding to NACK.

Optionally, in the first embodiment, other related contents of the sidelink feedback resource corresponding to the target mapping mode are configured by providing cyclic shift for the target terminal device, and are consistent with the related contents in the above embodiment of the sidelink feedback resource configuration method executed by the terminal device, and are not described again here.

Detailed description of the invention

In this embodiment two, the resource configuration information optionally includes a base sequence configuration, and the step 301 may be specifically executed as follows:

and sending base sequence configuration to the target terminal equipment, wherein the base sequence configuration is used for determining the secondary link feedback resource corresponding to the target mapping mode. It can be understood that, in this embodiment, a base sequence configuration associated with a target mapping manner may be provided for a target terminal device, so that the target terminal device may accurately determine a sidelink feedback resource corresponding to a required target mapping manner, where the sidelink feedback resource corresponding to the target mapping manner and the sidelink feedback resource corresponding to the first mapping manner correspond to code domain resources that are partially the same or completely different.

Further optionally, when the resource configuration information includes a base sequence configuration, and a target base sequence configuration in the base sequence configuration is different from a first base sequence configuration, the target base sequence configuration is used to determine a sidelink feedback resource corresponding to the target mapping manner; the target base sequence configuration corresponds to the target mapping mode, and the first base sequence configuration corresponds to the first mapping mode.

Further optionally, when the resource configuration information includes a base sequence configuration, and a target base sequence configuration in the base sequence configuration is the same as a first base sequence configuration, the base sequence configuration further includes a second base sequence configuration different from the target base sequence configuration, and the second base sequence configuration is used to determine a secondary link feedback resource corresponding to the target mapping manner; the target base sequence configuration corresponds to the target mapping mode, and the first base sequence configuration corresponds to the first mapping mode.

Further optionally, the base sequence in the resource configuration information is configured to be used by the target terminal device to perform one of the following operations:

(1) and applying a base sequence of a target type to a second secondary link feedback resource corresponding to the target mapping mode, and determining the secondary link feedback resource corresponding to the target mapping mode, wherein the second secondary link feedback resource is a resource which conflicts with the secondary link feedback resource corresponding to the first mapping mode.

(2) And applying the base sequence of the target type to all the secondary link feedback resources corresponding to the target mapping mode, and determining the secondary link feedback resources corresponding to the target mapping mode.

Wherein the base sequence of the target type is different from the base sequence of the first type corresponding to the first mapping manner.

Optionally, in the second specific implementation, other related contents of the sidelink feedback resource corresponding to the target mapping mode determined by the target terminal device through providing the base sequence configuration are consistent with the related contents in the embodiment of the sidelink feedback resource configuration method executed by the terminal device, and are not described herein again.

Detailed description of the preferred embodiment

In a third embodiment of the present invention, the resource configuration information optionally includes a channel or a signal format, and the step 301 may be specifically implemented as the following specific content:

and sending a channel or signal format to the target terminal equipment, wherein the channel or signal format is used for determining the sidelink feedback resource corresponding to the target mapping mode. It can be understood that, in this embodiment, a channel or a signal format associated with a target mapping manner may be provided for a target terminal device, so that the target terminal device may accurately determine a secondary link feedback resource corresponding to a required target mapping manner, where the secondary link feedback resource corresponding to the target mapping manner and the secondary link feedback resource corresponding to the first mapping manner correspond to partially the same or completely different code domain resources.

Further optionally, when the resource configuration information includes a channel or signal format, and the channel or signal format is a target channel or signal format where a sidelink feedback resource corresponding to the target mapping manner is located, a sequence length of the target channel or signal format is used to determine the sidelink feedback resource corresponding to the target mapping manner, and the sequence length of the target channel or signal format is different from a sequence length of a channel or signal format corresponding to the first mapping manner.

Further optionally, when the resource configuration information includes a channel or signal format, and the channel or signal format is a target channel or signal format in which a secondary link feedback resource corresponding to the target mapping manner is located, the type of the target channel or signal format is used to determine the secondary link feedback resource corresponding to the target mapping manner, one resource set of the secondary link feedback resource corresponding to the target mapping manner is used to carry multiple HARQ feedback information, or multiple resource sets of the secondary link feedback resource corresponding to the target mapping manner are used to carry multiple HARQ feedback information together; the plurality of HARQ feedback information corresponds to a plurality of opposite terminal equipment one by one, and the resource set is associated with time-frequency domain resources corresponding to a preset time slot and a preset sub-channel.

Optionally, in the third specific implementation, other related contents of the sidelink feedback resource corresponding to the target mapping mode are determined by providing a channel or a signal format for the target terminal device, and are consistent with the related contents in the above embodiment of the sidelink feedback resource configuration method executed by the terminal device, and are not described herein again.

Optionally, in the method for configuring sidelink feedback resources in this embodiment of the present application, when the number of resource blocks of a sidelink feedback resource corresponding to a second mapping manner of the multiple mapping manners is the same as the number of resource blocks of a sidelink feedback resource corresponding to a third mapping manner of the multiple mapping manners, the number of resource blocks in a resource set corresponding to the second mapping manner and the number of resource blocks in a resource set corresponding to the third mapping manner satisfy one of the following conditions:

sending a time domain offset value to the target terminal device, where the time domain offset value is used to perform time domain offset on a time domain resource corresponding to a sixth mapping mode in the multiple mapping modes; and the time domain resource corresponding to a seventh mapping mode in the plurality of mapping modes and the time domain resource corresponding to the sixth mapping mode after time domain offset meet a target position relationship, and the time domain resource corresponding to the seventh mapping mode is not subjected to time domain offset.

It can be understood that the time domain offset value may be provided for the target terminal device, so that the time domain offset value performs time domain offset on any mapping manner of the multiple mapping manners, that is, the sixth mapping manner, and the time domain resource corresponding to the seventh mapping manner, which is another mapping manner different from the mapping manner on which the time domain offset is performed, of the multiple mapping manners and the time domain resource corresponding to the mapping manner on which the time domain offset is performed may satisfy a certain time domain position relationship.

Optionally, the target position relationship includes one of:

(3) And aligning the time slot starting point corresponding to the sixth mapping mode after time domain shift with the time slot starting point corresponding to the seventh mapping mode.

determining at least one of a resource period and a feedback delay of a secondary link feedback resource corresponding to the target mapping mode; and sending at least one of the resource period and the feedback delay of the secondary link feedback resource corresponding to the target mapping mode to the target terminal equipment.

It can be understood that at least one of the resource period and the feedback delay of the sidelink feedback resource corresponding to the target mapping manner can also be provided for the target terminal device, so that when determining the sidelink feedback resource corresponding to the target mapping manner according to the resource configuration information, at least one of the resource period and the feedback delay can be further combined.

It should be noted that, in the method for configuring sidelink feedback resources performed by a terminal device according to the embodiment of the present application, an execution main body may be a sidelink feedback resource configuring apparatus, or a control module in the sidelink feedback resource configuring apparatus, configured to execute the method for configuring sidelink feedback resources. The embodiment of the present application describes a secondary link feedback resource allocation device provided in the embodiment of the present application, by taking an example in which a secondary link feedback resource allocation device executes a secondary link feedback resource allocation method.

Referring to fig. 12, an embodiment of the present application provides a secondary link feedback resource configuration apparatus 400, where the secondary link feedback resource configuration apparatus 400 includes: an acquisition module 401 and a determination module 403.

The obtaining module 401 is configured to obtain resource configuration information; the determining module 403 is configured to determine, according to the resource configuration information, a secondary link feedback resource corresponding to a target mapping manner; the target mapping mode is one of a plurality of mapping modes corresponding to the same resource pool, and the secondary link feedback resource corresponding to the target mapping mode and the secondary link feedback resource corresponding to the first mapping mode in the plurality of mapping modes are subjected to code domain multiplexing.

Optionally, in the apparatus 400 for configuring sidelink feedback resources according to the embodiment of the present application, the manner of acquiring the resource configuration information includes at least one of: agreement is agreed; configuring network side equipment; pre-configuring; other terminal device indication.

Optionally, in the apparatus 400 for configuring secondary link feedback resources according to the embodiment of the present application, the resource configuration information includes at least one of: a cyclic shift configuration; a cyclic shift offset value; configuring a base sequence; channel or signal format; an overhead indication value; the type of the mapping mode; an index of the mapping manner; a feedback resource period; and feeding back the time delay.

Optionally, in the apparatus 400 for configuring secondary link feedback resources according to the embodiment of the present application, the resource configuration information is indicated based on at least one of the following: secondary link control information SCI; SCI format; a secondary link system information block SIB; a Media Access Control (MAC) control unit (CE); a MAC protocol data unit PDU; PC5 radio resource control, RRC, request; a connection setup message.

Optionally, in the apparatus 400 for configuring sidelink feedback resources in this embodiment of the application, the determining module 403 may be specifically configured to: and performing cyclic shift according to the cyclic shift configuration in the resource configuration information, and determining the secondary link feedback resource corresponding to the target mapping mode.

Optionally, in the apparatus 400 for configuring sidelink feedback resources in this embodiment of the application, the determining module 403 may be specifically configured to:

and under the condition that the target cyclic shift configuration corresponding to the target mapping mode is different from the first cyclic shift configuration corresponding to the first mapping mode, performing cyclic shift according to a cyclic shift value in the target cyclic shift configuration, and determining the secondary link feedback resource corresponding to the target mapping mode.

determining a second cyclic shift configuration different from the target cyclic shift configuration when the target cyclic shift configuration corresponding to the target mapping manner is the same as the first cyclic shift configuration corresponding to the first mapping manner; and performing cyclic shift according to the cyclic shift value in the second cyclic shift configuration, and determining the secondary link feedback resource corresponding to the target mapping mode.

and under the condition that the target cyclic shift configuration corresponding to the target mapping mode is the same as the cyclic shift configuration corresponding to the first mapping mode, performing cyclic shift according to a target cyclic shift offset value and a cyclic shift value in the target cyclic shift configuration, and determining the secondary link feedback resource corresponding to the target mapping mode.

Optionally, in the apparatus 400 for configuring sidelink feedback resources according to the embodiment of the present application, the determining module 403 may be specifically configured to perform one of the following operations:

according to the cyclic shift configuration in the resource configuration information, cyclically shifting a sequence of a first secondary link feedback resource corresponding to the target mapping mode, and determining a secondary link feedback resource corresponding to the target mapping mode, wherein the first secondary link feedback resource is a resource which conflicts with the secondary link feedback resource corresponding to the first mapping mode in the secondary link feedback resource corresponding to the target mapping mode; and according to the cyclic shift configuration in the resource configuration information, cyclically shifting the sequences of all the secondary link feedback resources corresponding to the target mapping mode, and determining the secondary link feedback resources corresponding to the target mapping mode.

Optionally, in the secondary link feedback resource configuration apparatus 400 in this embodiment of the application, when the terminal device performs HARQ feedback using a first feedback mechanism and the cyclic shift in the resource configuration information is configured as a cyclic shift pair, one cyclic shift value in the cyclic shift pair is used to feed back a sequence corresponding to a negative acknowledgement NACK, and the other cyclic shift value is used to feed back a sequence corresponding to a positive acknowledgement ACK.

Optionally, in the apparatus 400 for configuring secondary link feedback resources in this embodiment of the application, when the terminal device performs HARQ feedback by using the second feedback mechanism and the cyclic shift in the resource configuration information is configured as a cyclic shift pair, the cyclic shift value in the cyclic shift pair is used to feed back a sequence corresponding to NACK.

Optionally, in the apparatus 400 for configuring sidelink feedback resources in this embodiment of the application, the determining module 403 may be specifically configured to: and determining the secondary link feedback resources corresponding to the target mapping mode according to the base sequence configuration in the resource configuration information.

and under the condition that the target base sequence configuration corresponding to the target mapping mode is different from the first base sequence configuration corresponding to the first mapping mode, determining the secondary link feedback resource corresponding to the target mapping mode according to the base sequence selected from the target base sequence configuration.

determining a second base sequence configuration different from the target base sequence configuration under the condition that the target base sequence configuration corresponding to the target mapping mode is the same as the first base sequence configuration corresponding to the first mapping mode; and determining the secondary link feedback resource corresponding to the target mapping mode according to the base sequence selected in the second base sequence configuration.

according to the base sequence configuration in the resource configuration information, applying a base sequence of a target type to a second secondary link feedback resource corresponding to the target mapping mode, and determining a secondary link feedback resource corresponding to the target mapping mode, wherein the second secondary link feedback resource is a resource which conflicts with the secondary link feedback resource corresponding to the first mapping mode in the secondary link feedback resource corresponding to the target mapping mode; according to the base sequence configuration in the resource configuration information, applying the base sequence of the target type to all the secondary link feedback resources corresponding to the target mapping mode, and determining the secondary link feedback resources corresponding to the target mapping mode; and the base sequence of the target type is different from the base sequence of the first type corresponding to the first mapping mode.

Optionally, in the apparatus 400 for configuring sidelink feedback resources in this embodiment of the application, the determining module 403 may be specifically configured to: and determining the secondary link feedback resources corresponding to the target mapping mode according to the channel or signal format in the resource configuration information.

and determining the secondary link feedback resource corresponding to the target mapping mode according to the sequence length of the target channel or signal format, wherein the sequence length of the target channel or signal format is different from the sequence length of the channel or signal format corresponding to the first mapping mode.

determining a secondary link feedback resource corresponding to the target mapping mode according to the type of the target channel or the signal format, wherein one resource set of the secondary link feedback resource corresponding to the target mapping mode is used for carrying a plurality of HARQ feedback information, or a plurality of resource sets of the secondary link feedback resource corresponding to the target mapping mode are commonly used for carrying a plurality of HARQ feedback information; the plurality of HARQ feedback information corresponds to a plurality of opposite terminal equipment one by one, and the resource set is associated with time-frequency domain resources corresponding to a preset time slot and a preset sub-channel.

Optionally, in the apparatus 400 for allocating sidelink feedback resources according to this embodiment of the present application, when the number of resource blocks of a sidelink feedback resource corresponding to a second mapping scheme of the plurality of mapping schemes is the same as the number of resource blocks of a sidelink feedback resource corresponding to a third mapping scheme of the plurality of mapping schemes, the number of resource blocks in a resource set corresponding to the second mapping scheme and the number of resource blocks in a resource set corresponding to the third mapping scheme satisfy one of:

if the first feedback period corresponding to the second mapping mode is smaller than the second feedback period corresponding to the third mapping mode, the number of resource blocks in the resource set corresponding to the third mapping mode is smaller than the number of resource blocks in the resource set corresponding to the second mapping mode; if the first feedback period is greater than the second feedback period, the number of resource blocks in the resource set corresponding to the third mapping mode is greater than the number of resource blocks in the resource set corresponding to the second mapping mode; and if the first feedback period is equal to the second feedback period, the number of resource blocks in the resource set corresponding to the third mapping mode is equal to the number of resource blocks in the resource set corresponding to the second mapping mode.

Optionally, in the apparatus 400 for allocating secondary link feedback resources according to the embodiment of the present application, when the number of resource blocks in a resource set corresponding to a fourth mapping scheme of the multiple mapping schemes is the same as the number of resource blocks in a resource set corresponding to a fifth mapping scheme of the multiple mapping schemes, the number of resource blocks of the secondary link feedback resources corresponding to the fourth mapping scheme and the number of resource blocks of the secondary link feedback resources corresponding to the fifth mapping scheme satisfy one of the following conditions:

if the third feedback period corresponding to the fourth mapping mode is smaller than the fourth feedback period corresponding to the fifth mapping mode, the number of resource blocks of the sidelink feedback resource corresponding to the fifth mapping mode is larger than the number of resource blocks in the resource set corresponding to the fourth mapping mode; if the third feedback period is greater than the fourth feedback period, the number of resource blocks of the sidelink feedback resource corresponding to the fifth mapping mode is less than the number of resource blocks in the resource set corresponding to the fourth mapping mode; and if the third feedback period is equal to the fourth feedback period, the number of resource blocks of the sidelink feedback resource corresponding to the fifth mapping mode is equal to the number of resource blocks in the resource set corresponding to the fourth mapping mode.

Optionally, in the apparatus 400 for configuring secondary link feedback resources according to the embodiment of the present application, the obtaining module 401 may be further configured to: acquiring a time domain offset value; the determining module 403 may be further configured to: performing time domain offset on the time domain resource corresponding to a sixth mapping mode in the plurality of mapping modes according to the time domain offset value; and the time domain resource corresponding to a seventh mapping mode in the plurality of mapping modes and the time domain resource corresponding to the sixth mapping mode after time domain offset meet the target position relationship, and the time domain resource corresponding to the seventh mapping mode is not subjected to time domain offset.

Optionally, in the apparatus 400 for configuring sidelink feedback resource according to the embodiment of the present application, the target location relationship includes one of:

aligning the even time slots corresponding to the sixth mapping mode and the seventh mapping mode after time domain shift; aligning the even time slot corresponding to the sixth mapping mode after time domain shift with the odd time slot corresponding to the seventh mapping mode; and aligning the time slot starting point corresponding to the sixth mapping mode after time domain shift with the time slot starting point corresponding to the seventh mapping mode.

The apparatus for configuring sidelink feedback resources in the embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal device. The device can be a mobile terminal or a non-mobile terminal. For 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 secondary link feedback resource configuration device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which is not specifically limited in the embodiments of the present application.

The sidelink feedback resource allocation device provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 2, and achieve the same technical effect, and is not described here again to avoid repetition.

It should be noted that, in the method for configuring sidelink feedback resources performed by a communication device according to the embodiment of the present application, an execution main body may be a sidelink feedback resource configuring apparatus, or a control module in the sidelink feedback resource configuring apparatus, configured to execute the method for configuring sidelink feedback resources. The embodiment of the present application describes a secondary link feedback resource allocation device provided in the embodiment of the present application, by taking an example in which a secondary link feedback resource allocation device executes a secondary link feedback resource allocation method.

Referring to fig. 13, an embodiment of the present application provides a sidelink feedback resource configuration apparatus 500, where the sidelink feedback resource configuration apparatus 500 includes:

a sending module 501, configured to send resource configuration information to a target terminal device, where the resource configuration information is used for the target terminal device to determine a secondary link feedback resource corresponding to a target mapping manner; the target mapping mode is one of a plurality of mapping modes corresponding to the same resource pool, and the secondary link feedback resource corresponding to the target mapping mode and the secondary link feedback resource corresponding to the first mapping mode in the plurality of mapping modes are subjected to code domain multiplexing.

Optionally, in the apparatus 500 for configuring secondary link feedback resources according to the embodiment of the present application, the resource configuration information includes at least one of: a cyclic shift configuration; a cyclic shift offset value; configuring a base sequence; channel or signal format; an overhead indication value; the type of the mapping mode; an index of the mapping manner; a feedback resource period; and feeding back the time delay.

Optionally, the apparatus 500 for configuring sidelink feedback resources according to this embodiment of the present application may further include:

a configuration module to indicate the resource configuration information based on at least one of: secondary link control information SCI; SCI format; a secondary link system information block, SIB; a media access control, MAC, control element, CE; a MAC protocol data unit PDU; PC5 radio resource control, RRC, request; a connection setup message.

Optionally, in the apparatus 500 for configuring secondary link feedback resources according to the embodiment of the present application, when the resource configuration information includes a cyclic shift configuration and a target cyclic shift configuration in the cyclic shift configuration is different from a first cyclic shift configuration, a cyclic shift value in the target cyclic shift configuration is used to determine a secondary link feedback resource corresponding to the target mapping manner; wherein the target cyclic shift configuration corresponds to the target mapping manner, and the first cyclic shift configuration corresponds to the first mapping manner.

Optionally, in the apparatus 500 for configuring sidelink feedback resources according to the embodiment of the present application, when the resource configuration information includes a cyclic shift configuration, and a target cyclic shift configuration in the cyclic shift configuration is the same as a first cyclic shift configuration, the sent cyclic shift configuration further includes a second cyclic shift configuration different from the target cyclic shift configuration, and a cyclic shift value in the second cyclic shift configuration is used to determine a sidelink feedback resource corresponding to the target mapping manner; wherein the target cyclic shift configuration corresponds to the target mapping scheme, and the first cyclic shift configuration corresponds to the first mapping scheme.

Optionally, in the apparatus 500 for configuring sidelink feedback resources according to the embodiment of the present application, when the resource configuration information includes a cyclic shift configuration, and a target cyclic shift configuration in the cyclic shift configuration is the same as a first cyclic shift configuration, a cyclic shift value in the target cyclic shift configuration is used for the target terminal device to determine, according to a target cyclic shift offset value and the cyclic shift value in the target cyclic shift configuration, a sidelink feedback resource corresponding to the target mapping manner; wherein the target cyclic shift configuration corresponds to the target mapping manner, and the first cyclic shift configuration corresponds to the first mapping manner.

Optionally, in the apparatus 500 for configuring secondary link feedback resources according to the embodiment of the present application, when the target terminal device performs HARQ feedback using the first feedback mechanism and the sent cyclic shifts are configured as cyclic shift pairs, one cyclic shift value in the cyclic shift pairs is used to feed back a sequence corresponding to negative acknowledgement NACK, and the other cyclic shift value is used to feed back a sequence corresponding to positive acknowledgement ACK.

Optionally, in the apparatus 500 for configuring secondary link feedback resources according to the embodiment of the present application, when the target terminal device performs HARQ feedback by using the second feedback mechanism and the sent cyclic shift is configured as a cyclic shift pair, a cyclic shift value in the cyclic shift pair is used to feed back a sequence corresponding to NACK.

Optionally, in the apparatus 500 for configuring sidelink feedback resources in this embodiment of the present application, when the resource configuration information includes a base sequence configuration, and a target base sequence configuration in the base sequence configuration is different from a first base sequence configuration, the target base sequence configuration is used to determine an sidelink feedback resource corresponding to the target mapping manner; the target base sequence configuration corresponds to the target mapping mode, and the first base sequence configuration corresponds to the first mapping mode.

Optionally, in the apparatus 500 for configuring sidelink feedback resources according to this embodiment of the present application, when the resource configuration information includes a base sequence configuration, and a target base sequence configuration in the base sequence configuration is the same as a first base sequence configuration, the base sequence configuration further includes a second base sequence configuration different from the target base sequence configuration, where the second base sequence configuration is used to determine an sidelink feedback resource corresponding to the target mapping manner; the target base sequence configuration corresponds to the target mapping mode, and the first base sequence configuration corresponds to the first mapping mode.

Optionally, in the apparatus 500 for configuring sidelink feedback resources in this embodiment of the application, when the resource configuration information includes a channel or a signal format, and the channel or the signal format is a target channel or a signal format where an sidelink feedback resource corresponding to the target mapping manner is located, a sequence length of the target channel or the signal format is used to determine the sidelink feedback resource corresponding to the target mapping manner, and the sequence length of the target channel or the signal format is different from a sequence length of a channel or a signal format corresponding to the first mapping manner.

Optionally, in the apparatus 500 for configuring sidelink feedback resources according to this embodiment of the present application, when the resource configuration information includes a channel or a signal format, and the channel or the signal format is a target channel or a signal format where a sidelink feedback resource corresponding to the target mapping manner is located, a type of the target channel or the signal format is used to determine the sidelink feedback resource corresponding to the target mapping manner, where one resource set of the sidelink feedback resource corresponding to the target mapping manner is used to carry multiple HARQ feedback information, or multiple resource sets of the sidelink feedback resource corresponding to the target mapping manner are used to carry multiple HARQ feedback information together; the plurality of HARQ feedback information corresponds to a plurality of opposite terminal equipment one by one, and the resource set is associated with time-frequency domain resources corresponding to a preset time slot and a preset sub-channel.

Optionally, in the apparatus 500 for allocating sidelink feedback resources according to this embodiment of the present application, when the number of resource blocks of a sidelink feedback resource corresponding to a second mapping scheme of the plurality of mapping schemes is the same as the number of resource blocks of a sidelink feedback resource corresponding to a third mapping scheme of the plurality of mapping schemes, the number of resource blocks in a resource set corresponding to the second mapping scheme and the number of resource blocks in a resource set corresponding to the third mapping scheme satisfy one of:

Optionally, in the apparatus 500 for configuring secondary link feedback resources according to the embodiment of the present application, when the number of resource blocks in a resource set corresponding to a fourth mapping manner of the multiple mapping manners is the same as the number of resource blocks in a resource set corresponding to a fifth mapping manner of the multiple mapping manners, the number of resource blocks of the secondary link feedback resources corresponding to the fourth mapping manner and the number of resource blocks of the secondary link feedback resources corresponding to the fifth mapping manner satisfy one of the following conditions:

Optionally, in the apparatus 500 for configuring sidelink feedback resources according to the embodiment of the present application, the sending module 501 may be further configured to: sending a time domain offset value to the target terminal device, where the time domain offset value is used to perform time domain offset on a time domain resource corresponding to a sixth mapping mode in the multiple mapping modes; wherein the time domain resource corresponding to a seventh mapping mode of the plurality of mapping modes and the time domain resource corresponding to the sixth mapping mode after time domain shifting satisfy a target position relationship, and the time domain resource corresponding to the seventh mapping mode is not subjected to time domain shifting.

Optionally, in the apparatus 500 for configuring sidelink feedback resource according to the embodiment of the present application, the target location relationship includes one of:

The apparatus for configuring sidelink feedback resources in the embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a communication device. The device can be a mobile terminal, a non-mobile terminal or a network side device. 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 network-side device may include, but is not limited to, the types of network-side device 12 listed above.

The apparatus for configuring secondary link feedback resources provided in the embodiment of the present application can implement each process implemented by the method embodiments of fig. 2 and fig. 12, and achieve the same technical effect, and in order to avoid repetition, it is not described here again.

Optionally, as shown in fig. 14, an embodiment of the present application further provides a communication device 600, which includes a processor 601, a memory 602, and a program or an instruction stored in the memory 602 and executable on the processor 601, for example, when the communication device 600 is a terminal, the program or the instruction is executed by the processor 601 to implement each process of the embodiment of the sidelink resource configuration method corresponding to fig. 2, and can achieve the same technical effect. When the communication device 600 is a network-side device, the program or the instruction is executed by the processor 601 to implement each process of the sidelink feedback resource allocation method embodiment corresponding to fig. 11, and can achieve the same technical effect, and for avoiding repetition, the details are not described here again.

Fig. 15 is a schematic hardware structure diagram of a terminal implementing the embodiment of the present application.

The terminal 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710.

Those skilled in the art will appreciate that the terminal 700 may further include a power supply (e.g., a battery) for supplying power to various components, which may be logically connected to the processor 710 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system. The terminal structure shown in fig. 15 is not intended to be limiting, and a terminal may include more or less components than those shown, or may combine some components, or may be arranged differently, and will not be described again.

It should be understood that in the embodiment of the present application, the input Unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042, and the Graphics Processing Unit 7041 processes image data of still pictures or videos obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also referred to as a touch screen. The touch panel 7071 may include two parts of a touch detection device and a touch controller. Other input devices 7072 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 the embodiment of the present application, the radio frequency unit 701 receives downlink data from a network side device and then processes the downlink data in the processor 710; in addition, the uplink data is sent to the network side equipment. In general, radio unit 701 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.

The memory 709 may be used to store software programs or instructions as well as various data. The memory 709 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 by at least one function, and the like. In addition, the memory 709 may include a high-speed random access memory and 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 710 may include one or more processing units; alternatively, processor 710 may integrate an application processor that handles primarily the operating system, user interface, and application programs 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 710.

The radio frequency unit 701 is configured to obtain resource configuration information; a processor 710, configured to determine, according to the resource configuration information, a sidelink feedback resource corresponding to the target mapping manner; the target mapping mode is one of a plurality of mapping modes corresponding to the same resource pool, and the secondary link feedback resource corresponding to the target mapping mode is code domain multiplexed with the secondary link feedback resource corresponding to the first mapping mode of the plurality of mapping modes.

Optionally, the processor 710 is specifically configured to perform cyclic shift according to the cyclic shift configuration in the resource configuration information, and determine the sidelink feedback resource corresponding to the target mapping manner.

In this embodiment, based on the obtained cyclic shift configuration associated with the target mapping manner, a corresponding cyclic shift is performed, so that the sidelink feedback resource corresponding to the target mapping manner required by the terminal device can be accurately determined, where the sidelink feedback resource corresponding to the target mapping manner and the sidelink feedback resource corresponding to the first mapping manner correspond to the code domain resource that is partially the same or completely different.

Optionally, the processor 710 is specifically configured to determine, according to the base sequence configuration in the resource configuration information, the secondary link feedback resource corresponding to the target mapping manner.

In this embodiment, based on the obtained basic sequence in the basic sequence configuration associated with the target mapping manner, the sidelink feedback resource corresponding to the target mapping manner required by the terminal device may be accurately determined. The sidelink feedback resource corresponding to the target mapping mode and the sidelink feedback resource corresponding to the first mapping mode correspond to the same or completely different code domain resources.

Optionally, the processor 710 is specifically configured to determine, according to a channel or signal format in the resource configuration information, a secondary link feedback resource corresponding to the target mapping manner.

In this embodiment, based on the obtained channel or signal format associated with the target mapping manner, the sidelink feedback resource corresponding to the target mapping manner required by the terminal device may be accurately determined. The secondary link feedback resource corresponding to the target mapping mode and the secondary link feedback resource corresponding to the first mapping mode correspond to code domain resources with the same or completely different parts.

The embodiment of the application also provides network side equipment. As shown in fig. 16, the network device 800 includes: antenna 801, radio frequency device 802, baseband device 803. The antenna 801 is connected to a radio frequency device 802. In the uplink direction, the rf device 802 receives information via the antenna 801 and sends the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes information to be transmitted and transmits the information to the radio frequency device 802, and the radio frequency device 802 processes the received information and transmits the processed information through the antenna 801.

The above band processing apparatus may be located in the baseband apparatus 803, and the method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 803, where the baseband apparatus 803 includes a processor 804 and a memory 805.

The baseband apparatus 803 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 16, where one chip, for example, the processor 804, is connected to the memory 805 to call up the program in the memory 805 to perform the network device operations shown in the above method embodiments.

The baseband device 803 may further include a network interface 806, such as a Common Public Radio Interface (CPRI), for exchanging information with the radio frequency device 802.

Specifically, the network side device of the embodiment of the present invention further includes: the instructions or programs stored in the memory 805 and capable of being executed on the processor 804, and the processor 804 calls the instructions or programs in the memory 805 to execute the methods executed by the modules shown in fig. 13, and achieve the same technical effects, which are not described herein for avoiding repetition.

The embodiment of the present application further provides 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 any one of the above embodiments of the sidelink feedback resource allocation method, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the terminal 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 run a terminal device or a network-side device program or an instruction, to implement each process of the above-mentioned each corresponding sidelink feedback resource configuration method embodiment, and can achieve the same technical effect, and in order to avoid repetition, the 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 a system-on-chip, a system-on-chip or a 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 identical 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 in 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, depending on the functionality 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 above embodiment method 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 embodiment. Based on such understanding, the technical solutions of the present application may be substantially or partially embodied in the form of a software product stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk), and including instructions for enabling a terminal (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) 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 scope of the invention as defined by the appended claims.

Claims

1. A method for configuring a secondary link feedback resource is applied to a terminal device, and is characterized in that the method comprises the following steps:

acquiring resource configuration information;

determining a secondary link feedback resource corresponding to a target mapping mode according to the resource configuration information; the target mapping mode is one of a plurality of mapping modes corresponding to the same resource pool, and the secondary link feedback resource corresponding to the target mapping mode is code domain multiplexed with the secondary link feedback resource corresponding to the first mapping mode in the plurality of mapping modes.

2. The method of claim 1, wherein the manner of obtaining the resource configuration information comprises at least one of:

agreement is agreed;

configuring network side equipment;

pre-configuring;

other terminal device indication.

3. The method of claim 1, wherein the resource configuration information comprises at least one of:

a cyclic shift configuration;

a cyclic shift offset value;

configuring a base sequence;

a channel or signal format;

an overhead indication value;

the type of the mapping mode;

an index of the mapping manner;

feeding back a resource period;

and feeding back the time delay.

4. The method of claim 3, wherein the resource configuration information is based on at least one of the following indications:

secondary link control information SCI;

SCI format;

a secondary link system information block, SIB;

a Media Access Control (MAC) control unit (CE);

a MAC protocol data unit PDU;

PC5 radio resource control, RRC, request;

a connection setup message.

5. The method of claim 3, wherein the determining, according to the resource configuration information, the secondary link feedback resource corresponding to the target mapping manner comprises:

and performing cyclic shift according to the cyclic shift configuration in the resource configuration information, and determining the secondary link feedback resource corresponding to the target mapping mode.

6. The method according to claim 5, wherein the determining the secondary link feedback resource corresponding to the target mapping manner by performing cyclic shift according to the cyclic shift configuration in the resource configuration information comprises:

7. The method according to claim 5, wherein the determining the secondary link feedback resource corresponding to the target mapping manner by performing cyclic shift according to the cyclic shift configuration in the resource configuration information comprises:

determining a second cyclic shift configuration different from the target cyclic shift configuration when the target cyclic shift configuration corresponding to the target mapping manner is the same as the first cyclic shift configuration corresponding to the first mapping manner;

and performing cyclic shift according to the cyclic shift value in the second cyclic shift configuration, and determining the secondary link feedback resource corresponding to the target mapping mode.

8. The method according to claim 5, wherein the determining the secondary link feedback resource corresponding to the target mapping manner by performing cyclic shift according to the cyclic shift configuration in the resource configuration information comprises:

9. The method according to claim 5, wherein the determining the secondary link feedback resource corresponding to the target mapping manner by performing cyclic shift according to the cyclic shift configuration in the resource configuration information includes one of:

according to the cyclic shift configuration in the resource configuration information, cyclically shifting a sequence of a first secondary link feedback resource corresponding to the target mapping mode, and determining a secondary link feedback resource corresponding to the target mapping mode, wherein the first secondary link feedback resource is a resource which conflicts with the secondary link feedback resource corresponding to the first mapping mode in the secondary link feedback resource corresponding to the target mapping mode;

and according to the cyclic shift configuration in the resource configuration information, cyclically shifting the sequences of all the secondary link feedback resources corresponding to the target mapping mode, and determining the secondary link feedback resources corresponding to the target mapping mode.

10. The method of claim 5, wherein when the terminal device employs a first feedback mechanism for hybrid automatic repeat request (HARQ) feedback and the cyclic shifts in the resource configuration information are configured as cyclic shift pairs, one of the cyclic shift values in the cyclic shift pair is used for feeding back a sequence corresponding to a Negative Acknowledgement (NACK) and the other cyclic shift value is used for feeding back a sequence corresponding to a positive Acknowledgement (ACK).

11. The method of claim 5, wherein when the terminal device performs HARQ feedback by using a second feedback mechanism and the cyclic shift in the resource configuration information is configured as a cyclic shift pair, the cyclic shift value in the cyclic shift pair is used for feeding back a sequence corresponding to NACK.

12. The method of claim 3, wherein the determining, according to the resource configuration information, the secondary link feedback resource corresponding to the target mapping manner comprises:

and determining the secondary link feedback resources corresponding to the target mapping mode according to the base sequence configuration in the resource configuration information.

13. The method according to claim 12, wherein the determining, according to the base sequence configuration in the resource configuration information, the secondary link feedback resource corresponding to the target mapping manner includes:

14. The method according to claim 12, wherein the determining, according to the base sequence configuration in the resource configuration information, the secondary link feedback resource corresponding to the target mapping manner includes:

determining a second base sequence configuration different from the target base sequence configuration under the condition that the target base sequence configuration corresponding to the target mapping mode is the same as the first base sequence configuration corresponding to the first mapping mode;

and determining the secondary link feedback resource corresponding to the target mapping mode according to the base sequence selected in the second base sequence configuration.

15. The method according to claim 12, wherein the determining, according to the base sequence configuration in the resource configuration information, the secondary link feedback resource corresponding to the target mapping manner includes one of:

according to the base sequence configuration in the resource configuration information, applying a base sequence of a target type to a second secondary link feedback resource corresponding to the target mapping mode, and determining a secondary link feedback resource corresponding to the target mapping mode, wherein the second secondary link feedback resource is a resource which conflicts with the secondary link feedback resource corresponding to the first mapping mode in the secondary link feedback resource corresponding to the target mapping mode;

according to the base sequence configuration in the resource configuration information, applying the base sequence of the target type to all the secondary link feedback resources corresponding to the target mapping mode, and determining the secondary link feedback resources corresponding to the target mapping mode;

and the base sequence of the target type is different from the base sequence of the first type corresponding to the first mapping mode.

16. The method of claim 3, wherein the determining, according to the resource configuration information, the secondary link feedback resource corresponding to the target mapping manner comprises:

and determining the secondary link feedback resources corresponding to the target mapping mode according to the channel or signal format in the resource configuration information.

17. The method of claim 16, wherein the determining the sidelink feedback resource corresponding to the target mapping scheme according to the channel or signal format in the resource configuration information comprises:

determining a secondary link feedback resource corresponding to the target mapping mode according to a target channel or signal format;

and the target channel or signal format is the channel or signal format where the secondary link feedback resource corresponding to the target mapping mode is located.

18. The method of claim 17, wherein the determining the sidelink feedback resource corresponding to the target mapping scheme according to a target channel or signal format comprises:

19. The method of claim 17, wherein the determining the sidelink feedback resource corresponding to the target mapping scheme according to a target channel or signal format comprises:

determining a secondary link feedback resource corresponding to the target mapping mode according to the type of the target channel or the signal format, wherein one resource set of the secondary link feedback resource corresponding to the target mapping mode is used for carrying a plurality of HARQ feedback information, or a plurality of resource sets of the secondary link feedback resource corresponding to the target mapping mode are commonly used for carrying a plurality of HARQ feedback information;

the plurality of HARQ feedback information corresponds to a plurality of opposite terminal equipment one by one, and the resource set is associated with time-frequency domain resources corresponding to a preset time slot and a preset sub-channel.

20. The method according to claim 1, wherein when the number of resource blocks of the secondary link feedback resource corresponding to a second mapping scheme of the plurality of mapping schemes is the same as the number of resource blocks of the secondary link feedback resource corresponding to a third mapping scheme of the plurality of mapping schemes, the number of resource blocks in the resource set corresponding to the second mapping scheme and the number of resource blocks in the resource set corresponding to the third mapping scheme satisfy one of:

if the first feedback period corresponding to the second mapping mode is smaller than the second feedback period corresponding to the third mapping mode, the number of resource blocks in the resource set corresponding to the third mapping mode is smaller than the number of resource blocks in the resource set corresponding to the second mapping mode;

if the first feedback period is greater than the second feedback period, the number of resource blocks in the resource set corresponding to the third mapping mode is greater than the number of resource blocks in the resource set corresponding to the second mapping mode;

and if the first feedback period is equal to the second feedback period, the number of resource blocks in the resource set corresponding to the third mapping mode is equal to the number of resource blocks in the resource set corresponding to the second mapping mode.

21. The method according to claim 1, wherein when the number of resource blocks in a resource set corresponding to a fourth mapping scheme of the plurality of mapping schemes is the same as the number of resource blocks in a resource set corresponding to a fifth mapping scheme of the plurality of mapping schemes, the number of resource blocks of the secondary link feedback resource corresponding to the fourth mapping scheme and the number of resource blocks of the secondary link feedback resource corresponding to the fifth mapping scheme satisfy one of:

if the third feedback cycle corresponding to the fourth mapping mode is smaller than the fourth feedback cycle corresponding to the fifth mapping mode, the number of resource blocks of the sidelink feedback resource corresponding to the fifth mapping mode is larger than the number of resource blocks in the resource set corresponding to the fourth mapping mode;

if the third feedback period is greater than the fourth feedback period, the number of resource blocks of the sidelink feedback resource corresponding to the fifth mapping mode is less than the number of resource blocks in the resource set corresponding to the fourth mapping mode;

and if the third feedback period is equal to the fourth feedback period, the number of resource blocks of the sidelink feedback resource corresponding to the fifth mapping mode is equal to the number of resource blocks in the resource set corresponding to the fourth mapping mode.

22. The method of claim 1, further comprising:

acquiring a time domain offset value;

performing time domain offset on a time domain resource corresponding to a sixth mapping mode in the plurality of mapping modes according to the time domain offset value;

and the time domain resource corresponding to a seventh mapping mode in the plurality of mapping modes and the time domain resource corresponding to the sixth mapping mode after time domain offset meet the target position relationship, and the time domain resource corresponding to the seventh mapping mode is not subjected to time domain offset.

23. The method of claim 22, wherein the target location relationship comprises one of:

aligning the even time slots corresponding to the sixth mapping mode and the seventh mapping mode after time domain shift;

aligning the even time slot corresponding to the sixth mapping mode after time domain shift with the odd time slot corresponding to the seventh mapping mode;

and aligning the time slot starting point corresponding to the sixth mapping mode after time domain shift with the time slot starting point corresponding to the seventh mapping mode.

24. A method for configuring sidelink feedback resources is applied to communication equipment, and is characterized in that the method comprises the following steps:

25. The method of claim 24, wherein the resource configuration information comprises at least one of:

a cyclic shift configuration;

a cyclic shift offset value;

configuring a base sequence;

a channel or signal format;

an overhead indication value;

the type of the mapping mode;

an index of the mapping manner;

feeding back a resource period;

and feeding back the time delay.

26. The method of claim 25, further comprising:

indicating the resource configuration information based on at least one of:

secondary link control information SCI;

SCI format;

a secondary link system information block, SIB;

a Media Access Control (MAC) control unit (CE);

a MAC protocol data unit PDU;

PC5 radio resource control, RRC, request;

a connection setup message.

27. The method of claim 25, wherein if the resource configuration information includes cyclic shift configurations and a target cyclic shift configuration in the cyclic shift configurations is different from a first cyclic shift configuration, a cyclic shift value in the target cyclic shift configuration is used to determine a secondary link feedback resource corresponding to the target mapping manner;

wherein the target cyclic shift configuration corresponds to the target mapping manner, and the first cyclic shift configuration corresponds to the first mapping manner.

28. The method of claim 25, wherein if the resource configuration information includes a cyclic shift configuration, and a target cyclic shift configuration in the cyclic shift configurations is the same as a first cyclic shift configuration, a second cyclic shift configuration different from the target cyclic shift configuration is further included in the transmitted cyclic shift configurations, and a cyclic shift value in the second cyclic shift configuration is used to determine a secondary link feedback resource corresponding to the target mapping manner;

29. The method according to claim 25, wherein in a case that the resource configuration information includes a cyclic shift configuration, and a target cyclic shift configuration in the cyclic shift configuration is the same as a first cyclic shift configuration, a cyclic shift value in the target cyclic shift configuration is used for the target terminal device to determine a secondary link feedback resource corresponding to the target mapping manner according to a target cyclic shift offset value and the cyclic shift value in the target cyclic shift configuration;

30. The method of claim 25, wherein when the target terminal device employs a first feedback mechanism for HARQ feedback and the transmitted cyclic shifts are configured as cyclic shift pairs, one of the cyclic shift values in the cyclic shift pair is used for feeding back a sequence corresponding to Negative Acknowledgement (NACK) and the other cyclic shift value is used for feeding back a sequence corresponding to positive Acknowledgement (ACK).

31. The method of claim 25, wherein if the target terminal device performs HARQ feedback using a second feedback mechanism and the transmitted cyclic shift is configured as a cyclic shift pair, a cyclic shift value in the cyclic shift pair is used for feeding back a sequence corresponding to NACK.

32. The method according to claim 25, wherein when the resource configuration information includes a base sequence configuration and a target base sequence configuration in the base sequence configuration is different from a first base sequence configuration, the target base sequence configuration is used to determine a sidelink feedback resource corresponding to the target mapping manner;

the target base sequence configuration corresponds to the target mapping mode, and the first base sequence configuration corresponds to the first mapping mode.

33. The method according to claim 25, wherein when the resource configuration information includes a base sequence configuration, and a target base sequence configuration in the base sequence configuration is the same as a first base sequence configuration, the base sequence configuration further includes a second base sequence configuration different from the target base sequence configuration, and the second base sequence configuration is used to determine a secondary link feedback resource corresponding to the target mapping manner;

34. The method of claim 25, wherein when the resource configuration information includes a channel or signal format, and the channel or signal format is a target channel or signal format in which the sidelink feedback resource corresponding to the target mapping manner is located,

and the sequence length of the target channel or signal format is used for determining the secondary link feedback resource corresponding to the target mapping mode, and is different from the sequence length of the channel or signal format corresponding to the first mapping mode.

35. The method of claim 25, wherein when the resource configuration information includes a channel or signal format, and the channel or signal format is a target channel or signal format in which the sidelink feedback resource corresponding to the target mapping manner is located,

the type of the target channel or the signal format is used for determining a secondary link feedback resource corresponding to the target mapping mode, one resource set of the secondary link feedback resource corresponding to the target mapping mode is used for carrying a plurality of HARQ feedback information, or a plurality of resource sets of the secondary link feedback resource corresponding to the target mapping mode are used for carrying a plurality of HARQ feedback information together;

36. The method according to claim 24, wherein when the number of resource blocks of the secondary link feedback resource corresponding to a second mapping scheme of the plurality of mapping schemes is the same as the number of resource blocks of the secondary link feedback resource corresponding to a third mapping scheme of the plurality of mapping schemes, the number of resource blocks in the resource set corresponding to the second mapping scheme and the number of resource blocks in the resource set corresponding to the third mapping scheme satisfy one of:

37. The method according to claim 24, wherein when the number of resource blocks in a resource set corresponding to a fourth mapping scheme of the plurality of mapping schemes is the same as the number of resource blocks in a resource set corresponding to a fifth mapping scheme of the plurality of mapping schemes, the number of resource blocks of the secondary link feedback resource corresponding to the fourth mapping scheme and the number of resource blocks of the secondary link feedback resource corresponding to the fifth mapping scheme satisfy one of:

38. The method of claim 24, further comprising:

sending a time domain offset value to the target terminal device, where the time domain offset value is used to perform time domain offset on a time domain resource corresponding to a sixth mapping mode in the multiple mapping modes;

39. The method of claim 38, wherein the target location relationship comprises one of:

40. A sidelink feedback resource allocation apparatus, comprising:

the acquisition module is used for acquiring resource configuration information;

the determining module is used for determining the secondary link feedback resources corresponding to the target mapping mode according to the resource configuration information; the target mapping mode is one of a plurality of mapping modes corresponding to the same resource pool, and the secondary link feedback resource corresponding to the target mapping mode is code domain multiplexed with the secondary link feedback resource corresponding to the first mapping mode in the plurality of mapping modes.

41. A sidelink feedback resource allocation apparatus, comprising:

a sending module, configured to send resource configuration information to a target terminal device, where the resource configuration information is used for the target terminal device to determine a secondary link feedback resource corresponding to a target mapping manner; the target mapping mode is one of a plurality of mapping modes corresponding to the same resource pool, and the secondary link feedback resource corresponding to the target mapping mode is code domain multiplexed with the secondary link feedback resource corresponding to the first mapping mode in the plurality of mapping modes.

42. A terminal device, comprising: memory, processor and 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 of any one of claims 1 to 23 or the program or instructions when executed by the processor implementing the steps of the method of any one of claims 24 to 39.

43. A network-side device, comprising: memory, a processor and a program or instructions stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method of any one of claims 24 to 39.

44. A readable storage medium, on which a program or instructions are stored, which, when executed by a processor, carry out the steps of the method according to any one of claims 1 to 23, or carry out the steps of the method according to any one of claims 24 to 39, when executed by a processor.