CN112398609B

CN112398609B - Resource mapping method and device, terminal and computer storage equipment

Info

Publication number: CN112398609B
Application number: CN201910750612.5A
Authority: CN
Inventors: 郑石磊; 赵锐
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2021-10-29
Anticipated expiration: 2039-08-14
Also published as: CN112398609A

Abstract

The application discloses a method and a device for resource mapping, a terminal and a computer storage device, wherein the method comprises the following steps: a first terminal receives first indication information sent by a second terminal, wherein the first indication information is used for indicating the mapping position of a feedback channel on a feedback resource pool, and the feedback channel is used for receiving/sending feedback information by the terminal of a direct link; and the first terminal determines the mapping position of the feedback channel of the first terminal on a feedback resource pool based on the first indication information. The technical problem that no scheme for mapping the feedback resources for the through link communication exists in the prior art is solved.

Description

Resource mapping method and device, terminal and computer storage equipment

Technical Field

The present application relates to the field of electronic communications technologies, and in particular, to a method and an apparatus for resource mapping, a terminal, and a computer storage device.

Background

In recent years, intelligent transportation technologies represented by the internet of vehicles have been rapidly developed, vehicle-to-all (V2X) technologies have been generated, and V2X is mainly used for realizing communication between vehicles, roadside infrastructure (infrastructure), pedestrians, networks, and the like, and is essentially direct link sidelink communication.

A V2X communication technology is also introduced in a New Radio (NR) technology of 5G, and in an NR-V2X system, there are two main ways of mapping feedback resources, one is to schedule feedback resources by a base station, and the other is to schedule feedback resources in a broadcast manner, but with the further development of the V2X technology, in order to support wider services, for example, in the fields of vehicle formation, advanced driving, sensor information sharing or remote control, and the like, the NR-V2X system also introduces two communication modes, namely a unicast mode and a multicast mode, into the NR-V2X system.

Currently, in the 3GPP standard, NR PUCCH format0 is defined as an uplink control channel of a new air interface Uu, or as a feedback channel of ACK (acknowledgement) information or Negative Acknowledgement (NACK) information determined in a Hybrid Automatic Repeat Request (HARQ), since resource mapping of an NR Uu port requires a base station to participate in resource scheduling, however, in an NR-V2X system, two communication modes of unicast and multicast are inherently sidelink communication, and no base station participates in resource scheduling, and therefore, an existing resource mapping method of the NR Uu port is not suitable for the two communication modes of unicast and multicast, and a scheme for feedback resource mapping of direct link communication is not provided in the prior art.

Disclosure of Invention

The application provides a resource mapping method and device, which are used for solving the technical problem that no scheme for feeding back resource mapping for direct link communication exists in the prior art.

In a first aspect, an embodiment of the present application provides a method for resource mapping, which is applied to a first terminal in an NR-V2X system, and the method includes:

a first terminal receives first indication information sent by a second terminal, wherein the first indication information is used for indicating the mapping position of a feedback channel on a feedback resource pool, and the feedback channel is used for receiving/sending feedback information by the terminal of a direct link;

and the first terminal determines the mapping position of the feedback channel of the first terminal on a feedback resource pool based on the first indication information.

In the scheme provided by the embodiment of the application, the first terminal determines the mapping position of the feedback channel of the first terminal on the feedback resource pool by receiving the first indication information sent by the second terminal. Therefore, in the scheme provided by the embodiment of the application, the first terminal determines the mapping position of the feedback channel on the feedback resource pool, and no base station participates in scheduling, so that the scheme of mapping the feedback resource of the direct link terminal is realized when no base station participates in scheduling.

Optionally, the first indication information is used to indicate a location of a feedback channel mapped on a feedback resource pool, and includes:

if all receiving terminals in any group of the multicast service multiplex the same feedback resource mapping feedback channel, the first indication information is used for indicating the mapping position of one feedback channel on the resource pool; or

If each receiving terminal in any group of the multicast service uses different feedback resource mapping feedback channels, the first indication information is used for indicating the mapping positions of the multiple feedback channels on the feedback resource pool.

Optionally, the determining, by the first terminal, a position on a feedback resource pool where a feedback channel of the first terminal is mapped based on the first indication information includes:

the first terminal divides the feedback resource pool into at least one sub-resource pool;

the first terminal acquires a time slot number of a receiving resource of the first terminal, and determines a first sub-resource pool mapped by a feedback channel of the first terminal on the at least one sub-resource pool based on the time slot number;

the first terminal obtains sub-channel parameters, and determines the mapping position of a feedback channel of the first terminal on the first sub-resource pool according to the sub-channel parameters, wherein the sub-channel parameters are sub-channel parameters of a receiving resource of the first terminal and comprise a sub-channel starting index, a sub-channel ending index and the total number of sub-channels in the feedback resource pool.

Optionally, the dividing, by the first terminal, the feedback resource pool into at least one sub-resource pool includes:

if all receiving terminals in any group of the multicast service multiplex the same feedback resource mapping feedback channel, the first terminal divides the feedback resource into N second sub-resource pools, wherein N represents the period of allocating the feedback resource on a wireless frame, and N is a positive integer not less than 1; or

If each receiving terminal in any group of multicast service uses different feedback resource mapping feedback channels, the first terminal divides the feedback resource pool into N third sub-resource pools and N fourth sub-resource pools, wherein the third sub-resource pools are used for mapping physical resources of the feedback channels of the first terminal in a unicast mode, and the fourth sub-resource pools are used for mapping physical resources of the feedback channels of the first terminal in a multicast mode.

In the embodiment of the application, if all receiving terminals in any group of the multicast service multiplex the same feedback resource mapping feedback channel, the first terminal divides the feedback resource into N second sub-resource pools; if each receiving terminal in any group of the multicast service uses different feedback resource mapping feedback channels, the first terminal divides a feedback resource pool into a third sub-resource pool for mapping the feedback channel of the first terminal in a unicast mode and a fourth sub-resource pool for mapping the feedback channel of the first terminal in a multicast mode. Therefore, in the scheme provided by the embodiment of the present application, the feedback resource pool is divided in different manners according to different communication modes, which not only improves the applicability of the scheme, but also divides the feedback resource pool into a sub-resource pool for mapping a feedback channel of the first terminal in a unicast mode and a sub-resource pool for mapping a feedback channel of the first terminal in a multicast mode, thereby avoiding interference between a unicast service and a multicast service, and improving communication quality.

Optionally, the dividing, by the first terminal, the feedback resource pool into N third sub-resource pools and N fourth sub-resource pools includes:

the first terminal divides the feedback resource pool into a first resource pool and a second resource pool, divides the first resource pool into N third sub-resource pools, and divides the second resource pool into N fourth sub-resource pools, wherein the first resource pool is the feedback resource pool of the first terminal in a unicast mode, and the second resource pool is the feedback resource pool of the first terminal in a multicast mode; or

The first terminal divides the feedback resource pool into N sub-resource pools; and the first terminal divides each sub-resource pool into one third sub-resource pool and one fourth sub-resource pool respectively to obtain N third sub-resource pools and N fourth sub-resource pools.

Optionally, determining a mapping position of a feedback channel of the first terminal on the first sub-resource pool according to the sub-channel parameter includes:

the first terminal divides the first sub-resource pool into at least one resource granularity, wherein the size of each resource granularity frequency domain is equal to the bandwidth of at least one feedback channel;

the first terminal determines the position of the feedback channel of the first terminal on the first sub-resource pool according to the sub-channel parameters and the following formula:

PSFCH _ index ═ INT (start _ SubCH _ index ═ n/Sub _ channel _ Num) or

PSFCH_index＝INT(end_SubCH_index*n/Sub_channel_Num)

The PSFCH _ index represents an initial position of a feedback channel mapped on the first sub-resource pool; start _ SubCH _ index represents the subchannel start index; end _ SubCH _ index represents the subchannel end index; sub _ channel _ Num represents the total number of Sub-channels in the feedback resource pool; INT () is a rounding function; INT (B/len), B representing a bandwidth of said first sub-resource pool, len representing a size of each of said resource granularity frequency domains;

and the first terminal determines the position of a feedback channel of the first terminal mapped on the first sub-resource pool according to the PSFCH _ index.

Optionally, the determining, by the first terminal, a location on the first sub-resource pool where a feedback channel of the first terminal is mapped according to the PSFCH _ index includes:

if all receiving terminals in any group of multicast service multiplex the same feedback resource mapping feedback channel, and the first terminal is in unicast service or multicast service, the first terminal takes the PSFCH _ index as the mapping position of the feedback channel of the first terminal on the first sub-resource pool; or

If each receiving terminal in any group of the multicast service uses a different feedback resource mapping feedback channel, and the first terminal is in the unicast service, the first terminal takes the PSFCH _ index as a mapping position of the feedback channel of the first terminal on the first sub-resource pool; or

If each receiving terminal in any group of the multicast service uses different feedback resource mapping feedback channels, and the first terminal is in the multicast service, the first terminal acquires the group ID of each receiving terminal or the destination ID of each receiving terminal in the group where the first terminal is located, sorts all the receiving terminals in the group according to the size of the group ID or the destination ID to obtain a sequence, and determines the sequence number Num of the first terminal in the sequence; and the first terminal takes the position of PSFCH _ index + Num as the position of the feedback channel of the first terminal mapped on the first sub-resource pool.

Optionally, the first sub-resource pool is one of N second sub-resource pools, one of N third sub-resource pools, or one of N fourth sub-resource pools.

Optionally, if the first sub-resource pool is one of N second sub-resource pools or one of N third sub-resource pools, the size of each resource granularity frequency domain is equal to the bandwidth of one feedback channel;

if the first sub-resource pool is one of the N fourth sub-resource pools, the size of each resource granularity frequency domain is equal to the bandwidth of m feedback channels, where m represents the maximum number of members allowed to be multiplexed in the multicast mode, and m is a positive integer not less than 1.

In a second aspect, an embodiment of the present application provides a method for resource mapping, which is applied to a second terminal in an NR-V2X system, and includes:

a second terminal generates first indication information and sends the first indication information to at least one first terminal, wherein the first indication information is used for indicating the position of a feedback channel on a feedback resource pool, and the feedback resource is used for receiving/sending feedback information by a terminal of a direct link;

and the second terminal determines the mapping position of the feedback channel of each first terminal in the at least one first terminal on the feedback resource pool according to the first indication information.

if all receiving terminals in any group of the multicast service multiplex the same feedback resource mapping feedback channel, the first indication information is used for indicating the mapping position of one feedback channel on the resource pool, wherein the receiving terminal refers to a terminal sending the feedback information; or

Optionally, the determining, by the second terminal, a mapping position of a feedback channel of each first terminal in the at least one first terminal on a feedback resource pool according to the first indication information includes:

the second terminal divides the feedback resource pool into at least one sub-resource pool;

the second terminal acquires a time slot number of the at least one first terminal receiving resource, and determines a first sub-resource pool mapped on a feedback resource pool by a feedback channel of the at least one first terminal on the at least one sub-resource pool based on the time slot number;

and the second terminal acquires sub-channel parameters, and determines the mapping position of the feedback channel of each first terminal on the first sub-resource pool according to the sub-channel parameters, wherein the sub-channel parameters are sub-channel parameters of the first terminal receiving resources, and comprise a sub-channel starting index, a sub-channel ending index and the total number of sub-channels in the feedback resource pool.

Optionally, the dividing, by the second terminal, the feedback resource pool into at least one sub-resource pool includes:

if all receiving terminals in any group of the multicast service multiplex the same feedback resource mapping feedback channel, the second terminal divides the feedback resource into N second sub-resource pools, wherein N represents the period of allocating the feedback resource on a wireless frame, and N is a positive integer not less than 1; or

If each receiving terminal in any group of multicast service uses different feedback resource mapping feedback channels, the second terminal divides the feedback resource pool into N third sub-resource pools and N fourth sub-resource pools, wherein the third sub-resource pools are used for mapping physical resources of the feedback channels of the first terminal in a unicast mode, and the fourth sub-resource pools are used for mapping physical resources of the feedback channels of the first terminal in a multicast mode.

Optionally, the dividing, by the second terminal, the feedback resource pool into N third sub-resource pools and N fourth sub-resource pools includes:

the second terminal divides the feedback resource pool into a first resource pool and a second resource pool, divides the first resource pool into N third sub-resource pools, and divides the second resource pool into N fourth sub-resource pools, wherein the first resource pool is the feedback resource pool of the first terminal in a unicast mode, and the second resource pool is the feedback resource pool of the first terminal in a multicast mode; or

The second terminal divides the feedback resource pool into N sub-resource pools; and the second terminal divides each sub-resource pool into one third sub-resource pool and one fourth sub-resource pool respectively to obtain N third sub-resource pools and N fourth sub-resource pools.

Optionally, determining, according to the sub-channel parameter, a mapping position of the feedback channel of each first terminal on the first sub-resource pool includes:

the second terminal divides the first sub-resource pool into at least one resource granularity, wherein the size of each resource granularity frequency domain is equal to the bandwidth of at least one feedback channel;

the second terminal determines the position of the feedback channel of each first terminal on the first sub-resource pool according to the sub-channel parameters and the following formula:

PSFCH _ index ═ INT (start _ SubCH _ index ═ n/Sub _ channel _ Num) or

PSFCH_index＝INT(end_SubCH_index*n/Sub_channel_Num)

and the second terminal determines the mapping position of the feedback channel of each first terminal on the first sub-resource pool according to the PSFCH _ index.

Optionally, the determining, by the second terminal, a location of the feedback channel of each first terminal mapped on the first sub-resource pool according to the PSFCH _ index includes:

if all receiving terminals in any group of multicast service multiplex the same feedback resource mapping feedback channel, and the first terminal is in unicast service or multicast service, the second terminal takes the PSFCH _ index as the mapping position of the feedback channel of the first terminal on the first sub-resource pool; or

If each receiving terminal in any group of the multicast service uses different feedback resource mapping feedback channels, and the first terminal is in the unicast service, the second terminal takes the PSFCH _ index as the mapping position of the feedback channel of the first terminal on the first sub-resource pool; or

If each receiving terminal in any group of the multicast service uses different feedback resource mapping feedback channels, and the first terminal is in the multicast service, the second terminal acquires the group ID of each receiving terminal or the destination ID of each receiving terminal in the group where the first terminal is located, sorts all the receiving terminals in the group according to the size of the group ID or the destination ID to obtain a sequence, and determines the sequence number Num of the first terminal in the sequence; and the second terminal takes the position of PSFCH _ index + Num as the position of the feedback channel of the first terminal mapped on the first sub-resource pool.

In a third aspect, an embodiment of the present application provides a first terminal, which is applied to an NR-V2X system, where the first terminal includes: a processor, a memory, and a transceiver; wherein the content of the first and second substances,

the transceiver is configured to receive first indication information sent by a second terminal, where the first indication information is used to indicate a mapping position of a feedback channel on a feedback resource pool, and the feedback channel is used for receiving/sending feedback information by a terminal of a direct link;

the processor is used for reading the program in the memory and executing the following processes:

and determining the position of the feedback channel of the first terminal mapped on the feedback resource pool based on the first indication information.

Optionally, the processor is specifically configured to:

dividing the feedback resource pool into at least one sub-resource pool;

acquiring a time slot number of a receiving resource of the first terminal, and determining a first sub-resource pool mapped by a feedback channel of the first terminal on the at least one sub-resource pool based on the time slot number;

obtaining sub-channel parameters, and determining the mapping position of the feedback channel of the first terminal on the first sub-resource pool according to the sub-channel parameters, wherein the sub-channel parameters are sub-channel parameters of the first terminal receiving resources, and include a sub-channel starting index, a sub-channel ending index and the total number of sub-channels in the feedback resource pool.

Optionally, the processor is specifically configured to:

if all receiving terminals in any group of the multicast service multiplex the same feedback resource mapping feedback channel, dividing the feedback resource into N second sub-resource pools, wherein N represents the period of allocating the feedback resource on a wireless frame, and is a positive integer not less than 1; or

If each receiving terminal in any group of the multicast service uses different feedback resource mapping feedback channels, dividing the feedback resource pool into N third sub-resource pools and N fourth sub-resource pools, wherein the third sub-resource pools are used for mapping physical resources of the feedback channels of the first terminal in a unicast mode, and the fourth sub-resource pools are used for mapping physical resources of the feedback channels of the first terminal in a multicast mode.

Optionally, the processor is specifically configured to:

dividing the feedback resource pool into a first resource pool and a second resource pool, dividing the first resource pool into N third sub-resource pools, and dividing the second resource pool into N fourth sub-resource pools, wherein the first resource pool is the feedback resource pool of the first terminal in the unicast mode, and the second resource pool is the feedback resource pool of the first terminal in the multicast mode; or

Dividing the feedback resource pool into N sub-resource pools; and dividing each sub resource pool into one third sub resource pool and one fourth sub resource pool respectively to obtain N third sub resource pools and N fourth sub resource pools.

Optionally, the processor is specifically configured to:

dividing the first sub-resource pool into at least one resource granularity, wherein the size of each resource granularity frequency domain is equal to the bandwidth of at least one feedback channel;

determining the position of the feedback channel of the first terminal on the first sub-resource pool according to the sub-channel parameters and the following formula:

PSFCH _ index ═ INT (start _ SubCH _ index ═ n/Sub _ channel _ Num) or

PSFCH_index＝INT(end_SubCH_index*n/Sub_channel_Num)

and determining the position of the feedback channel of the first terminal mapped on the first sub-resource pool according to the PSFCH _ index.

Optionally, the processor is specifically configured to:

if all receiving terminals in any group of the multicast service multiplex the same feedback resource mapping feedback channel, and the first terminal is in the unicast service or the multicast service, taking the PSFCH _ index as the mapping position of the feedback channel of the first terminal on the first sub-resource pool; or

If each receiving terminal in any group of the multicast service uses different feedback resource mapping feedback channels, and the first terminal uses the PSFCH _ index as a mapping position of the feedback channel of the first terminal on the first sub-resource pool under the unicast service; or

If each receiving terminal in any group of the multicast service uses different feedback resource mapping feedback channels, and the first terminal obtains a group ID of each receiving terminal or a destination ID of each receiving terminal in the group where the first terminal is located under the multicast service, all receiving terminals in the group are sequenced according to the size of the group ID or the destination ID to obtain a sequence, and a sequence number Num of the first terminal in the sequence is determined; and taking the position of PSFCH _ index + Num as the position of the feedback channel of the first terminal mapped on the first sub-resource pool.

In a fourth aspect, an embodiment of the present application provides a second terminal, which is applied to an NR-V2X system, where the second terminal includes: a processor, a memory, and a transceiver; wherein the content of the first and second substances,

generating first indication information and sending the first indication information to at least one first terminal, wherein the first indication information is used for indicating the position of a feedback channel on a feedback resource pool, and the feedback resource is used for receiving/sending feedback information by a terminal of a direct link;

and determining the mapping position of the feedback channel of each first terminal in the at least one first terminal on the feedback resource pool according to the first indication information.

Optionally, the processor is specifically configured to:

dividing the feedback resource pool into at least one sub-resource pool;

acquiring a time slot number of the receiving resource of the at least one first terminal, and determining a first sub-resource pool mapped on a feedback resource pool by a feedback channel of the at least one first terminal on the at least one sub-resource pool based on the time slot number;

obtaining sub-channel parameters, and determining the mapping position of the feedback channel of each first terminal on the first sub-resource pool according to the sub-channel parameters, wherein the sub-channel parameters are sub-channel parameters of the first terminal receiving resources, and include a sub-channel starting index, a sub-channel ending index and the total number of sub-channels in the feedback resource pool.

Optionally, the processor is specifically configured to:

PSFCH _ index ═ INT (start _ SubCH _ index ═ n/Sub _ channel _ Num) or

PSFCH_index＝INT(end_SubCH_index*n/Sub_channel_Num)

Optionally, the processor is specifically configured to:

In a fifth aspect, an embodiment of the present application provides an apparatus for resource mapping, which is applied to an NR-V2X system, and the apparatus includes:

a receiving unit, configured to receive first indication information sent by a second terminal, where the first indication information is used to indicate a mapping position of a feedback channel on a feedback resource pool, and the feedback channel is used for receiving/sending feedback information by a terminal of a direct link;

the processing unit is configured to determine, based on the first indication information, a location where a feedback channel of the first terminal is mapped on a feedback resource pool.

Optionally, the processing unit includes: the device comprises a dividing unit, a first determining unit and a second determining unit; wherein the content of the first and second substances,

the dividing unit is configured to divide the feedback resource pool into at least one sub-resource pool;

the first determining unit is configured to obtain a time slot number of a receiving resource of the first terminal, and determine, on the at least one sub-resource pool, a first sub-resource pool mapped by a feedback channel of the first terminal based on the time slot number;

the second determining unit is configured to obtain a sub-channel parameter, and determine, according to the sub-channel parameter, a mapping position of a feedback channel of the first terminal on the first sub-resource pool, where the sub-channel parameter is a sub-channel parameter of a receiving resource of the first terminal, and includes a sub-channel start index, a sub-channel end index, and a total number of sub-channels in the feedback resource pool.

Optionally, the dividing unit is specifically configured to:

Optionally, the dividing unit is specifically configured to: dividing the first sub-resource pool into at least one resource granularity, wherein the size of each resource granularity frequency domain is equal to the bandwidth of at least one feedback channel;

the second determining unit is specifically configured to determine, according to the sub-channel parameter, a mapping position of the feedback channel of the first terminal on the first sub-resource pool:

PSFCH _ index ═ INT (start _ SubCH _ index ═ n/Sub _ channel _ Num) or

PSFCH_index＝INT(end_SubCH_index*n/Sub_channel_Num)

Wherein the PSFCH _ index represents a starting position of a feedback resource of the at least one first terminal on the first sub-resource pool; start _ SubCH _ index represents the subchannel start index; end _ SubCH _ index represents the subchannel end index; sub _ channel _ Num represents the total number of Sub-channels in the feedback resource pool; INT () is a rounding function; INT (B/len), B representing a bandwidth of said first sub-resource pool, len representing a size of each of said resource granularity frequency domains;

the second determining unit is specifically configured to determine, according to the PSFCH _ index, a position of the feedback resource of the first terminal on the first sub-resource pool.

Optionally, the second determining unit is specifically configured to:

In a sixth aspect, an embodiment of the present application provides an apparatus for resource mapping, which is applied to an NR-V2X system, and the apparatus includes:

a transceiver unit, configured to generate first indication information and send the first indication information to at least one first terminal, where the first indication information is used to indicate a position of a feedback channel on a feedback resource pool, and the feedback resource is used for a terminal of a direct link to receive/send feedback information;

and the processing unit is used for determining the mapping position of the feedback channel of each first terminal in the at least one first terminal on the feedback resource pool according to the first indication information.

Optionally, the first indication information is used to indicate a location of a feedback resource mapped on a feedback resource pool, and includes:

if the at least one first terminal multiplexes the same feedback resource mapping feedback channel, the first indication information is used for indicating the position of one feedback resource on the resource pool; or

If each of the at least one first terminal uses a different feedback resource mapping feedback channel, the first indication information is used to indicate the position of the multiple feedback resources on the feedback resource pool.

the first determining unit is configured to obtain a time slot number of a receiving resource of the at least one first terminal, and determine, on the at least one sub-resource pool, a first sub-resource pool mapped on a feedback resource pool by a feedback channel of the at least one first terminal based on the time slot number;

the second determining unit is configured to obtain a sub-channel parameter, and determine, according to the sub-channel parameter, a mapping position of the feedback channel of each first terminal on the first sub-resource pool, where the sub-channel parameter is a sub-channel parameter of a receiving resource of the first terminal, and includes a sub-channel start index, a sub-channel end index, and a total number of sub-channels in the feedback resource pool.

Optionally, the dividing unit is specifically configured to:

Dividing the feedback resource pool into N sub-resource pools; and the second terminal divides each sub-resource pool into one third sub-resource pool and one fourth sub-resource pool respectively to obtain N third sub-resource pools and N fourth sub-resource pools.

Optionally, the dividing unit is specifically configured to divide the first sub-resource pool into at least one resource granularity, where a size of each resource granularity frequency domain is equal to a bandwidth of at least one feedback channel;

the second determining unit is specifically configured to:

determining the position of the feedback channel of each first terminal on the first sub-resource pool according to the sub-channel parameters and the following formula:

PSFCH _ index ═ INT (start _ SubCH _ index ═ n/Sub _ channel _ Num) or

PSFCH_index＝INT(end_SubCH_index*n/Sub_channel_Num)

and determining the mapping position of the feedback channel of each first terminal on the first sub-resource pool according to the PSFCH _ index.

Optionally, the second determining unit is specifically configured to:

In a seventh aspect, this application provides a computer-readable storage medium storing computer instructions, which, when executed on a computer, cause the computer to perform the method of the first aspect or the second aspect.

Drawings

Fig. 1 is a schematic diagram of a system architecture according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a system for resource mapping according to an embodiment of the present disclosure;

fig. 3 is a flowchart of a method for resource mapping according to an embodiment of the present application;

fig. 4 is a schematic time domain structure diagram of a radio frame according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of resource pool partitioning according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of resource pool partitioning according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of each sub-resource pool partition provided in the embodiment of the present application;

fig. 8 is a flowchart of a method for resource mapping according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a first terminal according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a second terminal according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of an apparatus for resource mapping according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a processing unit according to an embodiment of the present disclosure;

fig. 13 is a schematic structural diagram of an apparatus for resource mapping according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of a processing unit according to an embodiment of the present disclosure.

Detailed Description

In the solutions provided in the embodiments of the present application, the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to better understand the technical solutions, the technical solutions of the present application are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present application are detailed descriptions of the technical solutions of the present application, and are not limitations of the technical solutions of the present application, and the technical features in the embodiments and examples of the present application may be combined with each other without conflict.

The resource mapping method and device provided by the embodiment of the application are used for realizing the scheduling of the feedback resources without the participation of a base station; wherein the method and the device are based on the same application concept, and the implementation of the device and the method can be mutually referred as the principle of solving the problems of the method and the device is similar.

Various embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the display sequence of the embodiment of the present application only represents the sequence of the embodiment, and does not represent the merits of the technical solutions provided by the embodiments.

Fig. 1 is a schematic diagram illustrating a system architecture implemented by the present application, as shown in fig. 1, in a future 5G system architecture, a terminal 101 and a terminal 102 may communicate with a core network device 104 via an access node 103, for example, the terminal may refer to a UE, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. For convenience of description, fig. 1 only illustrates 2 terminals, and in an actual network, multiple terminals may coexist, which is not described herein again.

The link through which the

terminals

101 and 102 can communicate with the core network device 104 via the access node 103 is a cellular communication link between the network and the terminal, which may also be referred to as uulink, and the link through which the

terminals

101 and 102 communicate is a direct communication link between the devices, which may also be referred to as Side link.

The embodiment of the application is applied to a scenario that a V2X multicast or unicast service uses a direct communication link to perform communication under 5G NR, and for the multicast or unicast service in the prior art, after a sending end UE sends data, other UEs in the same group or terminals of the unicast service may all receive the data, and after receiving the data, other UEs may all send a feedback message to the sending end UE. However, other UEs generally schedule or broadcast by a base station when sending feedback information or feedback resources of UE feedback information at a sending end, and there is no scheme for mapping feedback resources for unicast or multicast services at present.

In view of the above problem, an embodiment of the present invention provides a system for resource mapping, which includes at least one first terminal 201 and a second terminal 202, as shown in fig. 2.

The first terminal 201 is configured to, after receiving the first indication information sent by the second terminal 202, determine, according to the first indication information, a position where a feedback channel of the first terminal 201 is mapped on the feedback resource pool, and send the feedback information on the feedback channel of the first terminal 201, where the first indication information is used to indicate the position where the feedback channel is mapped on the feedback resource pool.

The second terminal 202 is configured to send first indication information to the first terminal 201, and determine, according to the first indication information, a position on the feedback resource pool where the feedback channel of the first terminal 201 is mapped.

As shown in fig. 3, a specific process of a method for resource mapping provided in the embodiment of the present application is applied to a first terminal in an NR-V2X system, and a specific implementation manner of the method may include the following steps:

step 301, a first terminal receives first indication information sent by a second terminal, where the first indication information is used to indicate a mapping position of a feedback channel on a feedback resource pool, and the feedback channel is used to receive and send feedback information between direct link terminals.

Step 302, the first terminal determines, based on the first indication information, a location of a feedback channel of the first terminal mapped on a feedback resource pool.

In the embodiment of the application, the first terminal is a feedback terminal, the feedback terminal can be understood as a terminal device that sends feedback information, the second terminal is a sending terminal, and the sending terminal can be understood as a terminal that sends data and/or controls instructions. The first indication information may be direct link control information SCI and/or higher layer signaling RRC, and the first indication information at least includes some or all of the following parameters: the method comprises the following steps of sub-channel parameters, a source ID, a destination ID, a domain ID, a member ID in a group and a time slot number for receiving first indication information on a first terminal receiving resource, wherein the sub-channel parameters comprise: a subchannel start index, a subchannel end index, and the number of subchannels included in the first terminal reception resource.

In the embodiment of the present application, after introducing a unicast or multicast service in a V2X scenario, a terminal needs to determine a position of a feedback resource on a feedback resource pool without scheduling by a base station. The embodiment of the application provides a method for determining a mapping position of a feedback channel on a feedback resource pool as follows.

In a possible implementation manner, the first indication information is used to indicate a location where a feedback channel is mapped on a feedback resource pool, and includes:

Specifically, under the multicast service, a group corresponding to the second terminal has a plurality of receiving terminals; after receiving the service data sent by the second terminal, the multiple second receiving terminals need to send feedback information to the second terminal through the feedback channel, wherein all the receiving terminals in a group may multiplex the same feedback channel to send the feedback information, or may send the feedback information using different feedback channels.

When all receiving terminals in a group can multiplex the same feedback channel to transmit feedback information, or each receiving terminal uses a different feedback channel to transmit feedback information, the following two cases are included:

in case 1, all receiving terminals multiplex the same feedback resource mapping feedback channel.

Case 2, each receiving terminal maps a feedback channel using a different feedback resource.

In view of the above situation 1, when all receiving terminals multiplex the same feedback resource mapping feedback channel, there is only one feedback channel corresponding to multiple receiving terminals in a group, and the first indication information is used to indicate a mapping position of one feedback channel on the resource pool.

For the above case 2, when each receiving terminal uses a different feedback resource to map the feedback channels, there are multiple feedback channels of multiple receiving terminals in a group, and the first indication information is used to indicate positions where the multiple feedback channels are mapped on the feedback resource pool.

In the embodiment of the present application, the relationship between the feedback channels of the plurality of first terminals is configured or predefined by the first terminal.

In the embodiment of the application, the first terminal and the second terminal respectively determine the mapping positions of the feedback channels on the feedback resource pool according to the following methods.

In a possible implementation manner, the determining, by the first terminal, a location on a feedback resource pool where a feedback channel of the first terminal is mapped based on the first indication information includes:

Specifically, in this implementation manner, as shown in fig. 4, a feedback resource pool is allocated to each N time slots in a radio frame, where each feedback resource pool occupies one OFDM symbol or two OFDM symbols at the end of the N time slots, and the first terminal obtains a time slot number N of a receiving resource of the first terminal_s,fWherein the first terminal receives the slot number of the resourceThe time slot number of the resource is the same as the time slot number of the transmission resource of the second terminal, wherein the time slot number of the reception resource can be understood as the time slot position of the physical resource of the first terminal for receiving the data transmitted by the second terminal on the wireless frame, and the time slot number of the transmission resource can be understood as the time slot position of the physical resource of the second terminal for transmitting the data on the wireless frame, wherein n_s,fMay be second terminal configured or predefined.

The first terminal obtains n_s,fAnd according to n_s,fAnd after the first terminal determines the feedback resource pool, the feedback resource pool is divided into at least one sub-resource pool. In the embodiment of the present application, there are various ways to divide the feedback resource pool into at least one sub-resource pool, and the following description takes two preferable examples.

If all receiving terminals in any group of the multicast service multiplex the same feedback resource mapping feedback channel, the first terminal divides the feedback resource into N second sub-resource pools, wherein N represents the period of allocating the feedback resource on a wireless frame, and N is a positive integer not less than 1.

For example, fig. 5 shows a schematic diagram of resource pool division provided in this embodiment, where the first terminal uniformly divides the feedback resource pool into N second sub-resource pools, where N represents a period for allocating a feedback resource on a radio frame, and N is a positive integer not less than 1.

If each receiving terminal in any group of multicast services uses different feedback resources to map a feedback channel, the first terminal divides the feedback resource pool into N third sub-resource pools and N fourth sub-resource pools, wherein the third sub-resource pools are used for mapping physical resources of the feedback channel of the first terminal in a unicast mode, and the fourth sub-resource pools are used for mapping physical resources of the feedback channel of the first terminal in a multicast mode.

In an implementation manner, the first terminal divides the feedback resource pool into N third sub-resource pools and N fourth sub-resource pools by any one of the following manners:

in the method 1, the first terminal divides the feedback resource pool into a first resource pool and a second resource pool, divides the first resource pool into N third sub-resource pools, and divides the second resource pool into N fourth sub-resource pools, wherein the first resource pool is the feedback resource pool of the first terminal in the unicast mode, and the second resource pool is the feedback resource pool of the first terminal in the multicast mode.

For example, fig. 6 shows a schematic diagram of resource pool division provided in the embodiment of the present application, where a first terminal firstly divides a feedback resource pool into a first resource pool (corresponding to a Unicast resource pool in fig. 6) and a second resource pool (corresponding to a Groupcast resource pool in fig. 6), where the first resource pool is a feedback resource pool of the first terminal in a Unicast mode, and the second resource pool is a feedback resource pool of the first terminal in a multicast mode. In this embodiment of the present application, the first terminal may divide the feedback resource pool based on a ratio of unicast traffic to multicast traffic in the NR-V2X system, for example, the ratio of unicast traffic to multicast traffic is 1:2, and a bandwidth ratio of the divided first resource pool to the divided second resource pool is also 1: 2; the feedback resource pool may also be equally divided into a first resource pool and a second resource pool, which is not limited herein.

Then, the first terminal divides the first resource pool into N third sub-resource pools, and the second resource pool into N fourth sub-resource pools, where the first terminal may divide the first resource pool into N third sub-resource pools uniformly, or may divide the first resource pool into N third sub-resource pools in other manners, which is not limited herein. The manner of dividing the second resource pool refers to the manner of dividing the first resource pool, which is not described herein again.

In the mode 2, the first terminal divides the feedback resource pool into N sub-resource pools; and the first terminal divides each sub-resource pool into one third sub-resource pool and one fourth sub-resource pool respectively to obtain N third sub-resource pools and N fourth sub-resource pools.

For example, fig. 7 shows a schematic diagram of dividing each sub-resource pool provided in this embodiment, a first terminal first divides a feedback resource pool into N second sub-resource pools, and then divides each second sub-resource pool into a third sub-resource pool and a fourth sub-resource pool respectively to obtain N third sub-resource pools and N fourth sub-resource pools, where the first terminal may determine bandwidths occupied by the third sub-resource pool and the fourth sub-resource pool in each sub-resource pool according to a ratio of unicast traffic and multicast traffic in an NR-V2X system, for example, the ratio of unicast traffic and multicast traffic is 1:2, and the ratio of bandwidths of the third sub-resource pool and the fourth sub-resource pool after being divided in each sub-resource pool is also 1: 2; each sub-resource pool may also be equally divided into a third sub-resource pool and a fourth sub-resource pool, which is not limited herein.

Further, after dividing the feedback resource pool into at least one sub-resource pool, the first terminal divides the feedback resource pool into at least one sub-resource pool according to n_s,fAnd determining a first sub-resource pool mapped by a feedback channel of the first terminal according to the following formula:

SubPR_Index＝mod(n_s,f，N)

the subPR _ Index represents a first sub-resource pool mapped by a feedback channel of the first terminal; n represents that a feedback resource is allocated every N time slots on a wireless frame; mod () represents the remainder function.

Further, after determining a first sub-resource pool mapped by a feedback channel of the first terminal, the first terminal acquires sub-channel parameters, wherein the sub-channel parameters include a sub-channel start index, a sub-channel end index and the total number of sub-channels in the feedback resource pool; after the first terminal obtains the sub-channel parameters, the position of a feedback channel of the first terminal mapped on the first sub-resource pool is determined according to the sub-channel parameters.

In a possible implementation manner, determining, according to the subchannel parameter, a location on the first sub-resource pool where the feedback channel of the first terminal is mapped includes:

PSFCH _ index ═ INT (start _ SubCH _ index ═ n/Sub _ channel _ Num) or

PSFCH_index＝INT(end_SubCH_index*n/Sub_channel_Num)

In a possible implementation manner, if the first sub-resource pool is one of N second sub-resource pools or one of N third sub-resource pools, the size of each resource granularity frequency domain is equal to the bandwidth of one feedback channel; or

In a possible implementation manner, the determining, by the first terminal, a location on the first sub-resource pool where a feedback channel of the first terminal is mapped according to the PSFCH _ index includes:

In the embodiment of the application, the first terminal determines the mapping position of the feedback channel between the first terminal and the second terminal on the feedback resource pool through the first indication information sent by the second terminal, so that the mapping of the feedback resources between the terminals of the direct link is realized, and the problem that the feedback resources cannot be mapped under the condition that no base station schedules the feedback resources in the direct link is avoided.

As shown in fig. 8, a specific flow of a method for resource mapping provided in the embodiment of the present application is applied to a second terminal in an NR-V2X system, and a specific implementation manner of the method may include the following steps:

step 801, a second terminal generates first indication information and sends the first indication information to at least one first terminal, wherein the first indication information is used for indicating the position of a feedback channel on a feedback resource pool, and the feedback resource is used for receiving/sending feedback information by a terminal of a direct link;

step 802, the second terminal determines, according to the first indication information, a mapping position of a feedback channel of each first terminal in the at least one first terminal on a feedback resource pool.

PSFCH _ index ═ INT (start _ SubCH _ index ═ n/Sub _ channel _ Num) or

PSFCH_index＝INT(end_SubCH_index*n/Sub_channel_Num)

The resource mapping method using the second terminal as the execution subject and the resource mapping method using the first terminal as the execution subject provided by the embodiment of the present application are based on the same application concept, and the principles of solving the problems are similar, so that the specific implementation method using the second terminal as the execution subject and the implementation method using the first terminal as the execution subject may be mutually referred to, and are not repeated herein.

Based on the same technical concept, the embodiment of the present application further provides a first terminal, which is applied to the NR-V2X system, and the first terminal can implement the process executed in fig. 3 in the foregoing embodiment.

Referring to fig. 9, a schematic structural diagram of a first terminal provided in an embodiment of the present application is shown, where the first terminal includes: a processor 901, a memory 902, a transceiver 903, and a bus interface 904.

The processor 901 is responsible for managing a bus architecture and general processing, and the memory 902 may store data used by the processor 901 in performing operations. The transceiver 903 is used for receiving and transmitting data under the control of the processor 901.

The bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 901, and various circuits, represented by memory 902, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The processor 901 is responsible for managing a bus architecture and general processing, and the memory 902 may store data used by the processor 901 in performing operations.

The processes disclosed in the embodiments of the present application may be applied to the processor 901 and the transceiver 903, or implemented by the processor 901 and the transceiver 903. In implementation, the steps of the signal processing flow may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 901. The processor 901 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof that may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 902, and the processor 901 reads the information in the memory 902, and completes the steps of the signal processing flow in combination with the hardware thereof.

Specifically, the transceiver 903 is configured to receive first indication information sent by a second terminal, where the first indication information is used to indicate a mapping position of a feedback channel on a feedback resource pool, and the feedback channel is used for receiving/sending feedback information by a terminal in a direct link;

the processor 901 is configured to read the computer instructions in the memory 902 and execute the functions implemented in fig. 3:

Optionally, the processor 901 is specifically configured to:

dividing the feedback resource pool into at least one sub-resource pool;

Optionally, the processor 901 is specifically configured to:

PSFCH _ index ═ INT (start _ SubCH _ index ═ n/Sub _ channel _ Num) or

PSFCH_index＝INT(end_SubCH_index*n/Sub_channel_Num)

Optionally, the processor 901 is specifically configured to:

In this embodiment, the first terminal may perform all the steps in the method flow of resource mapping described in fig. 3 in the foregoing embodiment.

Based on the same technical concept, the embodiment of the present application further provides a second terminal, where the second terminal can implement the process executed in fig. 7 in the foregoing embodiment.

Referring to fig. 10, a schematic structural diagram of a second terminal provided in the embodiment of the present application is shown in fig. 10, where the second terminal may include: a processor 1001, a memory 1002, a transceiver 1003, and a bus interface 1004.

The processor 1001 is responsible for managing the bus architecture and general processing, and the memory 1002 may store data used by the processor 1001 in performing operations. The transceiver 1003 is used for receiving and transmitting data under the control of the processor 1001.

The bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by the processor 1001, and various circuits, represented by the memory 1002, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The processor 1001 is responsible for managing the bus architecture and general processing, and the memory 1002 may store data used by the processor 1001 in performing operations.

The processes disclosed in the embodiments of the present application may be applied to the processor 1001, or implemented by the processor 1001. In implementation, the steps of the signal processing flow may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 1001. The processor 1001 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 602, and the processor 1001 reads the information in the memory 1002 and completes the steps of the signal processing flow in combination with the hardware thereof.

Specifically, the processor 1001 is configured to read the computer instructions in the memory 1002 and execute the functions implemented in fig. 8:

Optionally, the processor 1001 is specifically configured to:

dividing the feedback resource pool into at least one sub-resource pool;

Optionally, the processor 1001 is specifically configured to:

PSFCH _ index ═ INT (start _ SubCH _ index ═ n/Sub _ channel _ Num) or

PSFCH_index＝INT(end_SubCH_index*n/Sub_channel_Num)

Optionally, the processor 1001 is specifically configured to:

In this embodiment of the present application, the second terminal may perform all the steps in the method flow of resource mapping described in fig. 7 in the foregoing embodiment.

As shown in fig. 11, a schematic structural diagram of an apparatus for resource mapping according to an embodiment of the present application is applied to an NR-V2X system, where the apparatus includes:

a receiving unit 1101, configured to receive first indication information sent by a second terminal, where the first indication information is used to indicate a mapping position of a feedback channel on a feedback resource pool, and the feedback channel is used for receiving/sending feedback information by a terminal of a direct link;

a processing unit 1102, configured to determine, based on the first indication information, a location where a feedback channel of the first terminal is mapped on a feedback resource pool.

Optionally, referring to fig. 12, the processing unit 1102 includes: a dividing unit 1201, a first determining unit 1202, and a second determining unit 1203; wherein the content of the first and second substances,

the dividing unit 1201 is configured to divide the feedback resource pool into at least one sub-resource pool;

the first determining unit 1202 is configured to obtain a time slot number of a receiving resource of the first terminal, and determine, on the at least one sub-resource pool, a first sub-resource pool mapped by a feedback channel of the first terminal based on the time slot number;

the second determining unit 1203 is configured to obtain a sub-channel parameter, and determine, according to the sub-channel parameter, a mapping position of a feedback channel of the first terminal on the first sub-resource pool, where the sub-channel parameter is a sub-channel parameter of a receiving resource of the first terminal, and includes a sub-channel start index, a sub-channel end index, and a total number of sub-channels in the feedback resource pool.

Optionally, the dividing unit 1201 is specifically configured to:

Optionally, the dividing unit 1201 is specifically configured to: dividing the first sub-resource pool into at least one resource granularity, wherein the size of each resource granularity frequency domain is equal to the bandwidth of at least one feedback channel;

the second determining unit 1203 is specifically configured to determine, according to the sub-channel parameter, a mapping position of the feedback channel of the first terminal on the first sub-resource pool:

PSFCH _ index ═ INT (start _ SubCH _ index ═ n/Sub _ channel _ Num) or

PSFCH_index＝INT(end_SubCH_index*n/Sub_channel_Num)

the second determining unit 1203 is specifically configured to determine, according to the PSFCH _ index, a position of the feedback resource of the first terminal on the first sub-resource pool.

Optionally, the second determining unit 1203 is specifically configured to:

In the embodiment of the present application, the resource mapping apparatus may perform all the steps in the method flow of resource mapping described in fig. 3 in the foregoing embodiment.

As shown in fig. 13, a schematic structural diagram of an apparatus for resource mapping according to an embodiment of the present application is applied to an NR-V2X system, where the apparatus includes:

a transceiving unit 1301, configured to generate first indication information and send the first indication information to at least one first terminal, where the first indication information is used to indicate a position of a feedback channel on a feedback resource pool, and the feedback resource is used for a terminal of a direct link to receive/send feedback information;

a processing unit 1302, configured to determine, according to the first indication information, a location of a feedback channel of each of the at least one first terminal mapped on a feedback resource pool.

Optionally, referring to fig. 14, the processing unit 1302 includes: a dividing unit 1401, a first determining unit 1402, and a second determining unit 1403; wherein the content of the first and second substances,

the dividing unit 1401 is configured to divide the feedback resource pool into at least one sub-resource pool;

the first determining unit 1402, configured to obtain a time slot number of a receiving resource of the at least one first terminal, and determine, on the at least one sub-resource pool, a first sub-resource pool mapped on a feedback resource pool by a feedback channel of the at least one first terminal based on the time slot number;

the second determining unit 1403 is configured to obtain a sub-channel parameter, and determine, according to the sub-channel parameter, a mapping position of the feedback channel of each first terminal on the first sub-resource pool, where the sub-channel parameter is a sub-channel parameter of a receiving resource of the first terminal, and includes a sub-channel start index, a sub-channel end index, and a total number of sub-channels in the feedback resource pool.

Optionally, the dividing unit 1401 is specifically configured to:

Optionally, the dividing unit 1401 is specifically configured to divide the first sub-resource pool into at least one resource granularity, where a size of each resource granularity frequency domain is equal to a bandwidth of at least one feedback channel;

the second determining unit 1403 is specifically configured to:

PSFCH _ index ═ INT (start _ SubCH _ index ═ n/Sub _ channel _ Num) or

PSFCH_index＝INT(end_SubCH_index*n/Sub_channel_Num)

Optionally, the second determining unit 1403 is specifically configured to:

In this embodiment of the present application, the resource mapping apparatus may perform all the steps in the method flow of resource mapping described in fig. 7 in the foregoing embodiment.

An embodiment of the present application provides a computer-readable storage medium, which stores computer instructions, and when the computer instructions are executed on a computer, the computer is caused to execute the method for resource mapping.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method for resource mapping, applied to a first terminal in an NR-V2X system, comprising:

2. The method of claim 1, wherein the first indication information is used for indicating a position of a feedback channel mapped on a feedback resource pool, and comprises:

3. The method of claim 2, wherein the first terminal dividing the feedback resource pool into at least one sub-resource pool, comprises:

4. The method of claim 3, wherein the first terminal dividing the feedback resource pool into N third sub-resource pools and N fourth sub-resource pools comprises:

5. The method of claim 3 or 4, wherein determining the location on the first pool of sub-resources where the feedback channel of the first terminal is mapped according to the sub-channel parameters comprises:

PSFCH _ index ═ INT (start _ SubCH _ index ═ n/Sub _ channel _ Num) or

PSFCH_index＝INT(end_SubCH_index*n/Sub_channel_Num)

6. The method of claim 5, wherein the first terminal determining, from the PSFCH _ index, a location on the first sub-resource pool where a feedback channel of the first terminal is mapped, comprises:

7. The method of claim 6, wherein the first sub-resource pool is one of N of the second sub-resource pools, or one of N of the third sub-resource pools, or one of N of the fourth sub-resource pools.

8. The method of claim 7, wherein if the first sub-resource pool is one of N second sub-resource pools or one of N third sub-resource pools, the size of each of the resource granularity frequency domains is equal to a bandwidth of a feedback channel;

9. A method for resource mapping, applied to a second terminal in an NR-V2X system, comprising:

and the second terminal acquires sub-channel parameters, and determines the mapping position of the feedback channel of each first terminal on the first sub-resource pool according to the sub-channel parameters, wherein the sub-channel parameters are sub-channel parameters of the first terminal receiving resources and comprise a sub-channel starting index, a sub-channel ending index and the total number of sub-channels in the feedback resource pool.

10. The method of claim 9, wherein the first indication information is used for indicating a position on a feedback resource pool where a feedback channel is mapped, and comprises:

11. The method of claim 10, wherein the second terminal dividing the feedback resource pool into at least one sub-resource pool, comprises:

12. The method of claim 11, wherein the second terminal dividing the feedback resource pool into N third sub-resource pools and N fourth sub-resource pools comprises:

13. The method of claim 11 or 12, wherein determining the location on the first pool of sub-resources where the feedback channel for each first terminal is mapped according to the sub-channel parameters comprises:

PSFCH _ index ═ INT (start _ SubCH _ index ═ n/Sub _ channel _ Num) or

PSFCH_index＝INT(end_SubCH_index*n/Sub_channel_Num)

14. The method of claim 13, wherein the second terminal determining, according to the PSFCH _ index, a location on the first sub-resource pool where the feedback channel for each first terminal is mapped, comprises:

15. The method of claim 14, wherein the first sub-resource pool is one of N of the second sub-resource pools, or one of N of the third sub-resource pools, or one of N of the fourth sub-resource pools.

16. The method of claim 15, wherein if the first sub-resource pool is one of N second sub-resource pools or one of N third sub-resource pools, a size of each of the resource granularity frequency domains is equal to a bandwidth of a feedback channel;

17. A first terminal for use in an NR-V2X system, comprising: a processor, a memory, and a transceiver; wherein the content of the first and second substances,

dividing the feedback resource pool into at least one sub-resource pool;

acquiring a time slot number of a first terminal receiving resource, and determining a first sub-resource pool mapped by a feedback channel of the first terminal on the at least one sub-resource pool based on the time slot number;

18. The first terminal of claim 17, wherein the first indication information is used for indicating a location of a feedback channel mapped on a feedback resource pool, and comprises:

19. The first terminal of claim 18, wherein the processor is specifically configured to:

20. The first terminal of claim 19, wherein the processor is specifically configured to:

21. The first terminal of claim 19 or 20, wherein the processor is specifically configured to:

PSFCH _ index ═ INT (start _ SubCH _ index ═ n/Sub _ channel _ Num) or

PSFCH_index＝INT(end_SubCH_index*n/Sub_channel_Num)

22. The first terminal of claim 21, wherein the processor is specifically configured to:

23. The first terminal of claim 22, wherein the first sub-resource pool is one of N of the second sub-resource pools, or one of N of the third sub-resource pools, or one of N of the fourth sub-resource pools.

24. The first terminal of claim 23, wherein if the first sub-resource pool is one of N second sub-resource pools or one of N third sub-resource pools, the size of each of the resource granularity frequency domains is equal to a bandwidth of a feedback channel;

25. A second terminal, for use in an NR-V2X system, comprising: a processor, a memory, and a transceiver; wherein the content of the first and second substances,

dividing the feedback resource pool into at least one sub-resource pool;

26. The second terminal of claim 25, wherein the first indication information is used for indicating a mapping position of a feedback channel on a feedback resource pool, and comprises:

27. The second terminal of claim 26, wherein the processor is specifically configured to:

28. The second terminal of claim 27, wherein the processor is specifically configured to:

29. The second terminal according to claim 27 or 28, wherein the processor is specifically configured to:

PSFCH _ index ═ INT (start _ SubCH _ index ═ n/Sub _ channel _ Num) or

PSFCH_index＝INT(end_SubCH_index*n/Sub_channel_Num)

30. The second terminal of claim 29, wherein the processor is specifically configured to:

31. The second terminal in claim 30, wherein the first sub-resource pool is one of N second sub-resource pools, or one of N third sub-resource pools, or one of N fourth sub-resource pools.

32. The second terminal in claim 31, wherein if the first sub-resource pool is one of N second sub-resource pools or one of N third sub-resource pools, the size of each of the resource granularity frequency domains is equal to the bandwidth of one feedback channel;

33. An apparatus for resource mapping, applied to an NR-V2X system, comprising:

a processing unit, configured to divide the feedback resource pool into at least one sub-resource pool; acquiring a time slot number of a first terminal receiving resource, and determining a first sub-resource pool mapped by a feedback channel of the first terminal on the at least one sub-resource pool based on the time slot number; obtaining sub-channel parameters, and determining the mapping position of the feedback channel of the first terminal on the first sub-resource pool according to the sub-channel parameters, wherein the sub-channel parameters are sub-channel parameters of the first terminal receiving resources, and include a sub-channel starting index, a sub-channel ending index and the total number of sub-channels in the feedback resource pool.

34. An apparatus for resource mapping, applied to an NR-V2X system, comprising:

a processing unit, configured to divide the feedback resource pool into at least one sub-resource pool; acquiring a time slot number of the receiving resource of the at least one first terminal, and determining a first sub-resource pool mapped on a feedback resource pool by a feedback channel of the at least one first terminal on the at least one sub-resource pool based on the time slot number; obtaining sub-channel parameters, and determining the mapping position of the feedback channel of each first terminal on the first sub-resource pool according to the sub-channel parameters, wherein the sub-channel parameters are sub-channel parameters of the first terminal receiving resources, and include a sub-channel starting index, a sub-channel ending index and the total number of sub-channels in the feedback resource pool.

35. A computer-readable storage medium characterized by:

the computer readable storage medium stores computer instructions that, when executed on a computer, cause the computer to perform the method of any of claims 1-8 or 9-16.