CN110798292A

CN110798292A - Method and device for mapping feedback information

Info

Publication number: CN110798292A
Application number: CN201810871447.4A
Authority: CN
Inventors: 彭淑燕; 纪子超
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-08-02
Filing date: 2018-08-02
Publication date: 2020-02-14
Anticipated expiration: 2038-08-02
Also published as: WO2020024790A1; CN110798292B

Abstract

The embodiment of the invention provides a method and a device for mapping feedback information, relates to the technical field of communication, and is used for solving the problem that the demodulation success probability of the feedback information mapped on an RE corresponding to an AGC symbol is low if a mapping mechanism of the feedback information in the prior art is used. The method comprises the following steps: mapping the feedback information on a target resource element RE of a side link SL; wherein the starting position of the target RE corresponds to a first symbol associated with a symbol carrying a demodulation reference signal (DMRS) sequence in a frame structure of the SL. The embodiment of the invention is used for mapping the feedback information.

Description

Method and device for mapping feedback information

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for mapping feedback information.

Background

Communication over Sidelink (SL) is a technique that enables direct communication between devices without transmission or forwarding through network side equipment such as a base station. The resource utilization rate and the network capacity can be improved through sidelink communication, so that the method has wide application prospect.

The reliability requirement is very high in many scenarios of New Radio (NR) SL, for example: under the scenes of extended sensors, advanced driving, remote driving and the like of the NR SL, the reliability needs to reach 99.99% or higher, so that a feedback mechanism needs to be introduced into the NR SL. In the prior art, when Uplink Control Information (UCI) is multiplexed on a Physical Uplink Shared CHannel (Physical Uplink Shared CHannel), at most three pieces of Information may be included: hybrid Automatic Repeat reQuest-acknowledgement (HARQ-ACK), channel state information part 1(channel state information part1, CSI part1), and channel state information part 2(channel state information part2, CSI part 2). Referring to fig. 1, in which HARQ-ACK is mapped from a Resource Element (RE) corresponding to a first symbol after a first symbol carrying a DMRS sequence; the CSI part1 is mapped from RE corresponding to the first non-DMRS (non-DMRS) bearing symbol of the PUSCH; the CSI part2 is mapped from REs after the CSI part1, and is not mapped on REs to which the DMRS and HARQ-ACK are mapped. Since the first symbol is used for Automatic Gain Control (AGC) in the SL frame structure and the time of the first symbol is used to adjust the gain of the received signal so that the signal input to the amplifier is within the linear range of its power amplifier, the demodulation performance of the data transmitted on the RE corresponding to the first symbol is poor. If the mapping mechanism of the feedback information in the prior art is used in SL, the probability of successful demodulation of the feedback information mapped on the RE corresponding to the symbol used for AGC is relatively low.

Disclosure of Invention

Embodiments of the present invention provide a method and an apparatus for mapping feedback information, which are used to solve the problem that the probability of successful demodulation of feedback information mapped on an RE corresponding to an AGC symbol is low if a mapping mechanism of feedback information in the prior art is used.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a method for mapping feedback information, including:

mapping the feedback information on a target resource element RE of a side link SL;

wherein the starting position of the target RE corresponds to a first symbol associated with a symbol carrying a demodulation reference signal (DMRS) sequence in a frame structure of the SL.

In a second aspect, an embodiment of the present invention provides an apparatus for mapping feedback information, including:

a mapping unit, configured to map the feedback information on a target resource element RE of the side link SL;

In a third aspect, an embodiment of the present invention provides an apparatus for mapping feedback information, including a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the method for mapping feedback information according to the first aspect.

In a fourth aspect, the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method for mapping feedback information according to the first aspect.

The method for mapping feedback information according to the embodiment of the present invention maps feedback information on a target resource element RE of a sidelink SL, and since the starting position of the target RE corresponds to a first symbol, and the first symbol is associated with a symbol carrying a DMRS sequence in a frame structure of the SL, that is, in the embodiment of the present invention, the starting position of the target RE for mapping feedback information is determined according to the symbol carrying the DMRS sequence in the frame structure of the SL, compared with the prior art in which a CSI part1 is directly mapped on a RE corresponding to a symbol of a first non-DMRS of a PUSCH, in the embodiment of the present invention, the starting position of the target RE for mapping feedback information is determined according to the symbol carrying the DMRS sequence, so that the embodiment of the present invention can reduce or avoid sending feedback information using a RE corresponding to a symbol for AGC in the frame structure of the SL, and improve the successful demodulation probability of the feedback information, therefore, the embodiment of the present invention can solve the problem that the mapping mechanism of the feedback information in the prior art is used to make the demodulation success probability of the feedback information mapped on the RE corresponding to the symbol used for AGC low.

Drawings

Fig. 1 is a schematic diagram illustrating the location of an RE for mapping feedback information in the prior art;

fig. 2 is a schematic diagram of a possible structure of a communication system according to an embodiment of the present invention;

FIG. 3 is a flowchart illustrating steps of a method for mapping feedback information according to an embodiment of the present invention;

fig. 4 is one of schematic location diagrams of REs for mapping feedback information according to an embodiment of the present invention;

fig. 5 is a second schematic diagram illustrating the locations of REs for mapping feedback information according to an embodiment of the present invention;

fig. 6 is a third schematic diagram illustrating the locations of REs for mapping feedback information according to an embodiment of the present invention;

fig. 7 is a fourth schematic diagram illustrating the locations of REs for mapping feedback information according to an embodiment of the present invention;

fig. 8 is a fifth schematic diagram illustrating the location of an RE for mapping feedback information according to an embodiment of the present invention;

fig. 9 is a sixth schematic diagram illustrating the location of an RE for mapping feedback information according to an embodiment of the present invention;

fig. 10 is a seventh schematic diagram illustrating the location of an RE for mapping feedback information according to an embodiment of the present invention;

fig. 11 is an eighth schematic diagram illustrating the location of an RE for mapping feedback information according to an embodiment of the present invention;

fig. 12 is a ninth schematic diagram illustrating the locations of REs for mapping feedback information according to an embodiment of the present invention;

fig. 13 is a tenth schematic diagram illustrating the locations of REs mapping feedback information according to an embodiment of the present invention;

fig. 14 is an eleventh schematic diagram illustrating the locations of REs for mapping feedback information according to an embodiment of the present invention;

fig. 15 is a twelfth schematic diagram illustrating the locations of REs for mapping feedback information according to an embodiment of the present invention;

fig. 16 is a thirteen schematic diagram illustrating the locations of REs for mapping feedback information according to an embodiment of the present invention;

fig. 17 is a fourteenth schematic diagram illustrating locations of REs for mapping feedback information according to an embodiment of the present invention;

fig. 18 is a schematic structural diagram of an apparatus for mapping feedback information according to an embodiment of the present invention;

fig. 19 is a schematic hardware structure diagram of an apparatus for mapping feedback information according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. 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 invention.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship; in the formula, the character "/" indicates that the preceding and following related objects are in a relationship of "division". The term "plurality" herein means two or more, unless otherwise specified.

For the convenience of clearly describing the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, the words "first", "second", and the like are used to distinguish the same items or similar items with basically the same functions or actions, and those skilled in the art can understand that the words "first", "second", and the like do not limit the quantity and execution order.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion. In the embodiments of the present invention, the meaning of "a plurality" means two or more unless otherwise specified.

In the prior art, HARQ-ACK is mapped on a Resource Element (RE) corresponding to a first symbol after the first symbol carrying a DMRS sequence; the CSI part1 is mapped on RE corresponding to a first non-DMRS (non-DMRS) bearing symbol of the PUSCH; the CSI part2 starts mapping on REs after the CSI part1, and does not map on REs to which DMRSs and HARQ-ACKs are mapped. Since the first symbol is used for Automatic Gain Control (AGC) in the SL frame structure and the time of the first symbol is used to adjust the gain of the received signal so that the signal input to the amplifier is within the linear range of its power amplifier, the demodulation performance of data transmitted on the RE corresponding to the symbol used for AGC is poor. If the mapping mechanism of the feedback information in the prior art is used in SL, the probability that the feedback information mapped on the RE corresponding to the symbol used for AGC is successfully demodulated is relatively low.

In order to solve the problem, an embodiment of the present invention provides a method and an apparatus for mapping feedback information, where the method includes: mapping the feedback information on a target Resource Element (RE) of a sidelink SL, wherein an initial position of the target RE corresponds to a first symbol, and the first symbol is associated with a symbol carrying a DMRS sequence in a frame structure of the SL, that is, in the embodiment of the present invention, the initial position of the target RE mapping the feedback information is determined according to the symbol carrying the DMRS sequence in the frame structure of the SL, and compared with the prior art in which a CSI part1 is directly mapped on a RE corresponding to a symbol of a first non-DMRS of a PUSCH, in the embodiment of the present invention, the initial position of the target RE mapping the feedback information is determined according to the symbol carrying the DMRS sequence, so that the embodiment of the present invention can reduce or avoid sending the feedback information using the RE corresponding to the symbol for AGC in the frame structure of the SL, and improve the successful demodulation probability of the feedback information, and therefore, the embodiment of the present invention can solve the problem that the problem of using the mapping mechanism of the feedback information in the prior art, such that the feedback information mapping The probability of successful information demodulation is low.

The technical scheme provided by the invention can be applied to various communication systems, such as a 5G communication system, a future evolution system or a plurality of communication convergence systems and the like. A variety of application scenarios may be included, for example, scenarios such as Machine to Machine (M2M), D2M, macro and micro Communication, enhanced Mobile Broadband (eMBB), ultra high reliability and ultra Low Latency Communication (urrllc), and mass internet of things Communication (mtc). These scenarios include, but are not limited to: communication between the UE and the UE, communication between the network side device and the network side device, or communication between the network side device and the UE. The embodiment of the invention can be applied to the communication between the network side equipment and the UE in the 5G communication system, or the communication between the UE and the UE, or the communication between the network side equipment and the network side equipment.

Fig. 2 shows a schematic diagram of a possible structure of a communication system according to an embodiment of the present invention. As shown in fig. 2, the communication system may include: a network side device 11 (in fig. 2, the network side device is taken as a base station as an example), a first terminal device 12, and a second terminal device 13 (in fig. 2, both the first terminal device and the second terminal device are taken as mobile phones as an example). The network side device 11 establishes a wireless connection with the first terminal device 12 and the second terminal device 13 through Radio Resource Control (RRC), and establishes a sidelink between the first terminal device 12 and the second terminal device 13.

The network side device 11 in the communication system according to the embodiment of the present invention may be a base station, a core network device, a Transmission and Reception node (TRP), a relay station, an access Point, or the like. The network side device 11 may also be a Base Transceiver Station (BTS) in a Global System for Mobile communication (GSM) or Code Division Multiple Access (CDMA) network, may also be an nb (nodeb) in Wideband Code Division Multiple Access (WCDMA), and may also be an eNB or enodeb (evolved nodeb) in LTE. The Network side device 11 may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario. The network side device 11 may also be a base station (gNB) in a 5G communication system or a network side device in a future evolution network.

Terminal devices

12 and 13 may be wireless UEs, which may refer to devices that provide voice and/or other traffic data connectivity to a user, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle mounted devices, wearable devices, UEs in future 5G networks or UEs in future evolved PLMN networks, and so forth. A Wireless UE may communicate with one or more core networks via a Radio Access Network (RAN), and may be a Mobile terminal, such as a Mobile phone (or "cellular" phone) and a computer with a Mobile terminal, for example, a portable, pocket, hand-held, computer-included, or vehicle-mounted Mobile device, which exchanges languages and/or data with the RAN, and Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like, and the Wireless terminal may also be a Mobile device, a UE terminal, an Access terminal, a Wireless Communication device, a terminal unit, a Station, a Mobile Station (Mobile Station), or a vehicle-mounted Mobile device, A Remote Station (Remote Station), a Remote Station, a Remote Terminal (Remote Terminal), a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a User Agent (User Agent), a Terminal device, and the like. As an example, in the embodiment of the present invention, fig. 2 illustrates that the terminal is a mobile phone.

It should be noted that the communication system shown in fig. 2 is only one possible schematic configuration diagram of the communication system according to the embodiment of the present invention, and the embodiment of the present invention is not limited thereto, and the communication system according to the embodiment of the present invention may also be other system systems, for example: only the first terminal device 12 and the second terminal device 13 are included, and the sidelink is established between the first terminal device 12 and the second terminal device 13, and the network side device 11 is not included.

The execution main body of the method for mapping feedback information provided by the embodiment of the present invention may be the receiving end device of the communication on sidelink.

An embodiment of the present invention provides a method for mapping feedback information, and specifically, referring to fig. 3, the method for mapping feedback information includes the following steps:

s11, mapping the feedback information on the target RE of SL.

Wherein the starting position of the target RE corresponds to a first symbol associated with a symbol carrying a DMRS sequence in the SL's frame structure.

The symbol (symbol) in the embodiment of the present invention specifically refers to an Orthogonal Frequency Division Multiplexing (OFDM) symbol.

Specifically, step S11 (mapping feedback information on target RE of SL) in the above embodiment is explained in detail below.

The first implementation mode,

Optionally, the first symbol is an nth symbol that does not carry the DMRS sequence after the target symbol, or the first symbol is a symbol before the target symbol;

the target symbol is a symbol carrying a DMRS sequence in the first SL frame structure, and N is a positive integer.

Optionally, the SL includes a feedback information.

Specifically, when the SL includes one feedback information, the feedback information in the SL may be HARQ-ACK or CSI.

Optionally, when the SL includes one piece of feedback information and the first symbol is a symbol of an nth non-carrier DMRS sequence after the target symbol or a symbol before the target symbol, the step S11 (mapping the feedback information on the target REs of the SL) includes:

mapping feedback information in the SL on REs corresponding to the first to third symbols;

the third symbol precedes the symbol used for the guard slot GP in the frame structure of the SL.

Exemplarily, referring to fig. 4, in fig. 4, a symbol (N ═ 1) of a first non-carrier DMRS sequence after the first symbol is a target symbol, a symbol (symbol 2) of a frame structure in which a first carrier DMRS sequence is the SL, feedback information included in the SL is HARQ-ACK, a symbol (symbol 6) of a frame structure in which the third symbol is the SL, and a last symbol in the frame structure of the SL is used for GP is illustrated. As shown in fig. 4, the symbol after the target symbol, which is the 4 th symbol (symbol 3) in the frame structure of the SL, is the first non-DMRS sequence, so that HARQ-ACK is mapped from the RE corresponding to the 4 th symbol (symbol 3) in the frame structure of the SL, and is sequentially mapped to the RE corresponding to the 7 th symbol in the frame structure of the SL in the ascending order of symbol numbers in the frame structure of the SL.

Exemplarily, referring to fig. 5, in fig. 5, a second symbol (N ═ 2) not carrying the DMRS sequence after the first symbol is the target symbol, a 3 rd symbol (symbol 2) in a frame structure in which a first symbol carrying the DMRS sequence is SL, feedback information included in the SL is CSI, the third symbol is an 8 th symbol (symbol 7) in the frame structure of the SL, and a last symbol in the frame structure of the SL is used for GP is illustrated. As shown in fig. 5, the symbol next to the target symbol, which is not carrying the DMRS sequence, is the 5 th symbol (symbol 4) in the frame structure of the SL, so the CSI is mapped from the RE corresponding to the 5 th symbol (symbol 4) in the frame structure of the SL and sequentially mapped to the RE corresponding to the 8 th symbol (symbol 7) in the frame structure of the SL in the ascending order of the symbol numbers in the frame structure of the SL.

Exemplarily, referring to fig. 6, in fig. 6, a symbol (symbol 1) before the first symbol is a target symbol, a 3 rd symbol (symbol 2) in a frame structure in which a first symbol carrying a DMRS sequence is SL, feedback information included in the SL is HARQ-ACK, the third symbol is a 5 th symbol (symbol 4) in the frame structure of the SL, and a symbol in the frame structure of the SL is used for GP. As shown in fig. 6, the symbol before the target symbol is the 2 nd symbol (symbol 1) in the frame structure of the SL, so the HARQ-ACKs are mapped from the RE corresponding to the 2 nd symbol (symbol 1) in the frame structure of the SL and sequentially mapped to the RE corresponding to the 5 th symbol in the frame structure of the SL in the ascending order of the symbol numbers in the frame structure of the SL.

mapping feedback information in a sidelink SL on REs corresponding to a symbol before the first symbol to a symbol for GP in a frame structure of the SL and a first symbol not carrying DMRS sequence to a RE corresponding to a fourth symbol in the frame structure of the SL;

the fourth RE is located before the first symbol.

Exemplarily, referring to fig. 7, in fig. 7, a first symbol (N ═ 1) not carrying the DMRS sequence after the first symbol is the target symbol, a 3 rd symbol (symbol 2) in a frame structure in which a first symbol carrying the DMRS sequence is SL, feedback information included in the SL is CSI, a fourth symbol is a 2 nd symbol (symbol 1) in a frame structure of the SL, and a last symbol in the frame structure of the SL is used for GP is illustrated. As shown in fig. 7, the symbol after the target symbol is the 4 th symbol (symbol 3) in the frame structure of the SL, so the CSI is first mapped from the RE corresponding to the 4 th symbol (symbol 3) in the frame structure of the SL, and is sequentially mapped to the RE corresponding to the symbol before the symbol used for GP in the frame structure of the SL in the ascending order of the symbol numbers in the frame structure of the SL, and is then mapped from the RE corresponding to the first symbol (symbol 0) not carrying the DMRS sequence in the frame structure of the SL, and is sequentially mapped to the RE corresponding to the fourth symbol (symbol 1) in the ascending order of the symbol numbers in the frame structure of the SL.

Optionally, step S11 (the mapping of the feedback information in the SL on the target RE for transmission) includes:

and under the condition that the number of REs needed for mapping the feedback information in the SL is greater than a preset threshold value, discarding partial data in the feedback information in the SL, and mapping the residual data in the feedback information in the SL on a target resource element RE for transmission.

Specifically, the preset threshold may be the number of REs that the PSSCH of the SL can transmit data, or a predefined upper limit value of the number of REs that transmit feedback information, and a specific numerical value of the preset threshold is not limited in the embodiment of the present invention.

The second implementation mode,

the target symbol is a first symbol carrying a DMRS sequence in the SL, and N is a positive integer.

Optionally, the mapping method for feedback information provided in the embodiment of the present invention further includes:

in case that at least two feedback information are included in the SL, the at least two feedback information are jointly encoded.

For example, when at least two pieces of feedback information are included in the SL, the feedback information in the SL may include: the HARQ-ACK and CSI, or feedback information in SL, may include: HARQ-ACK, CSI part1, CSI part 2.

Optionally, the SL includes at least two pieces of feedback information, and the at least two pieces of feedback information are jointly encoded; and if the first symbol is the nth symbol after the target symbol or the first symbol is the symbol before the target symbol, the step S11 (mapping the feedback information on the target RE of the SL) includes:

the third symbol precedes a symbol for a GP in the frame structure of the SL.

Exemplarily, referring to fig. 8, it is illustrated in fig. 8 that two feedback information, HARQ-ACK and CSI, are included in the SL, a first symbol (N ═ 1) not carrying the DMRS sequence after the first symbol is the target symbol, a 3 rd symbol (symbol 2) in a frame structure in which the first symbol carrying the DMRS sequence is the SL, a third symbol is a 10 th symbol (symbol 9) in the frame structure of the SL, and a last symbol in the frame structure of the SL is used for GP. As shown in fig. 8, the first symbol after the target symbol, which is not carrying the DMRS sequence, is the 4 th symbol (symbol 3) in the frame structure of the SL, so the joint coding sequence of HARQ-ACK and CSI is mapped from the RE corresponding to the 4 th symbol (symbol 3) in the frame structure of the SL, and sequentially mapped to the RE corresponding to the 10 th symbol (symbol 9)) in the frame structure of the SL in the ascending order of the symbol numbers in the frame structure of the SL.

Exemplarily, referring to fig. 9, three feedback information including HARQ-ACK, CSI part1 and CSI part2 are included in SL in fig. 9, a first symbol (N ═ 1) not carrying a DMRS sequence after the first symbol is a target symbol, a 3 rd symbol (symbol 2) in a frame structure in which the first symbol carrying a DMRS sequence is SL, a third symbol (symbol 10) in a frame structure in which the third symbol is the 11 th symbol of the SL, and a last symbol in the frame structure of the SL is used for GP. As shown in fig. 9, the symbol of the first non-DMRS sequence after the target symbol is the 4 th symbol (symbol 3) in the frame structure of the SL, and thus the joint coding sequence of the HARQ-ACK, CSI part1, and CSI part2 is mapped from the RE corresponding to the 4 th symbol (symbol 3) in the frame structure of the SL, and sequentially mapped to the RE corresponding to the 11 th symbol (symbol 10) in the frame structure of the SL in the ascending order of the symbol numbers in the frame structure of the SL.

the fourth RE is located before the first symbol.

Illustratively, referring to fig. 10, fig. 10 includes in SL: HARQ-ACK, CSI part1 and CSIpart2, and the first symbol is a previous symbol of a target symbol, the first symbol carrying a DMRS sequence is a 3 rd symbol (symbol 2) in a frame structure of SL, the fourth symbol is a 1 st symbol (symbol 0) in a frame structure of SL, and the last symbol in a frame structure of SL is used for GP as illustration. As shown in fig. 10, the symbol after the target symbol, which is the first non-DMRS sequence-bearing symbol, is the 4 th symbol (symbol 3) in the SL frame structure, so the joint coding sequence of HARQ-ACK, CSI part1 and CSIpart2 is first mapped from the RE corresponding to the 4 th symbol (symbol 3) in the SL frame structure, and sequentially mapped to the RE corresponding to the second last symbol in the SL frame structure in the ascending order of symbol numbers in the SL frame structure, and then mapped from the first non-DMRS sequence-bearing symbol (symbol 0) in the SL frame structure, and sequentially mapped to the RE corresponding to the fourth symbol (symbol 0) in the ascending order of symbol numbers in the SL frame structure.

The third implementation mode,

The SL comprises at least two pieces of feedback information, and the at least two pieces of feedback information are independently coded;

step S11 (mapping feedback information on target RE of SL) in the above embodiment includes:

mapping second target feedback information on the target REs of the SL by performing rate matching or data puncturing on resources on which first target feedback information is mapped.

The first target feedback information and the second target feedback information are feedback information of the at least two pieces of feedback information, and the transmission priority of the second target feedback information is lower than that of the first target feedback information.

That is, the feedback information with lower transmission priority performs rate matching or data puncturing on the resource for mapping the feedback information with higher transmission priority.

For example: the SL comprises three pieces of feedback information including SL-FI part1, SL-FI part2 and SL-FI part3, and the transmission priority relation of the SL-FI part1, the SL-FI part2 and the SL-FI part3 is as follows: SL-FI part1 > SL-FIpart2 > SL-FI part 3; then SL-FI part2 may rate match or puncture resources mapped to SL-FI part1 and SL-FI part3 may rate match or puncture resources mapped to SL-FI part1 and/or resources mapped to SL-FI part 2.

For example, the transmission priority of the second target feedback information may be lower than the transmission priority of the first target feedback information in two cases:

1. the first target feedback information and the second target feedback information are independent of each other.

2. The size of the information mapping the second target feedback information may be known by parsing the first target feedback information.

Optionally, step S11 in the foregoing embodiment (mapping the feedback information on the target RE of the SL) further includes:

wherein the third symbol precedes a symbol for a guard slot GP in a frame structure of the SL.

Specifically, when the SL includes at least two pieces of feedback information, the at least two pieces of feedback information are independently encoded, and the resource to which the first target feedback information is mapped is rate-matched or data-punctured, and the second target feedback information is mapped on the target RE of the SL, and the feedback information in the SL is mapped on the RE corresponding to the first symbol to the third symbol, step S11 in the above embodiment (mapping the feedback information on the target RE of the SL) may specifically be:

mapping the at least two pieces of feedback information from REs corresponding to the first symbol;

the first symbol is an Nth symbol which is not used for bearing the DMRS sequence and is behind a target symbol, or the first symbol is a former symbol of the target symbol; n is a positive integer.

Exemplarily, referring to fig. 11, a symbol (N ═ 1) of a first non-DMRS sequence after the first symbol is a target symbol in fig. 11, a 3 rd symbol (symbol 2) in a frame structure where the first DMRS sequence is carried in a SL, the SL includes two feedback information of HARQ-ACK and CSI, a transmission priority of HARQ-ACK is higher than a transmission priority of CSI, CSI performs rate matching on RE resources mapping HARQ-ACK, the third symbol is a 10 th symbol (symbol 9) in the frame structure of the SL, and a last symbol in the frame structure of the SL is used for GP. As shown in fig. 11, the symbol after the target symbol, which is the 4 th symbol (symbol 3) in the frame structure of the SL, of the first non-DMRS sequence is, therefore, mapping HARQ-ACK from the RE corresponding to the 4 th symbol (symbol 3) in the frame structure of the SL first, after the HARQ-ACK mapping is completed, rate matching is performed on the RE resources for mapping HARQ-ACK by CSI, and the mapping is sequentially performed to the REs corresponding to the 10 th symbol (symbol 9) in the frame structure of the SL according to the ascending order of the symbol numbers in the frame structure of the SL.

Exemplarily, referring to fig. 12, in fig. 12, a previous symbol of a frame structure in which the first symbol is a target symbol, a first symbol carrying a DMRS sequence is SL is a 3 rd symbol (symbol 2), the SL includes three feedback information, HARQ-ACK, CSIpart1 and CSI part2, a transmission priority of HARQ-ACK is higher than a transmission priority of CSI part1, a transmission priority of CSI part1 is higher than a transmission priority of CSI part2, rate matching is performed on RE resources mapped with HARQ-ACK by CSI part1, rate matching is performed on RE resources mapped with CSI part1 by CSI part2, rate matching is performed on RE resources mapped with CSI part1 by the third symbol is a 10 th symbol (symbol 9) of the frame structure of the SL, and a last symbol in the frame structure of the SL is used for GP. As shown in fig. 12, the symbol before the target symbol is the 2 nd symbol (symbol 1) in the frame structure of the SL, so the HARQ-ACK is mapped from the RE corresponding to the 2 nd symbol (symbol 1) in the frame structure of the SL first, after the HARQ-ACK mapping is completed, the CSI part1 performs rate matching on the RE resources mapping the HARQ-ACK, and after the CSI part1 mapping is completed, the CSIpart2 performs rate matching on the RE resources mapping the CSI part1, and sequentially maps to the RE corresponding to the 8 th symbol (symbol 7) in the frame structure of the SL according to the ascending order of the symbol numbers in the frame structure of the SL.

Specifically, step S11 in the above embodiment (mapping the feedback information on the target RE of the SL may include, in the case that the SL includes at least two pieces of feedback information, the at least two pieces of feedback information are independently encoded, and the second target feedback information is mapped on the target RE of the SL and the feedback information in the SL is mapped on the RE corresponding to the first symbol to the third symbol by performing rate matching or data puncturing on the resource on which the first target feedback information is mapped, where the step S11 includes:

mapping first feedback information from the RE corresponding to the first symbol, and mapping second feedback information from the RE corresponding to the second symbol;

the first feedback information is feedback information with the highest transmission priority in the at least two pieces of feedback information, the second feedback information is feedback information with the second highest transmission priority in the at least two pieces of feedback information, the first symbol is an Nth symbol after a target symbol and not bearing a DMRS sequence, and the second symbol is a previous symbol of the target symbol; n is a positive integer.

Exemplarily, referring to fig. 13, in fig. 13, a 3 rd symbol (symbol 2) and N ═ 1 in a frame structure with a first symbol carrying a DMRS sequence as SL, the SL includes two feedback information, HARQ-ACK and CSI, a transmission priority of HARQ-ACK is higher than a transmission priority of CSI, rate matching is performed on RE resources of CSI mapped HARQ-ACK, the third symbol is an 8 th symbol (symbol 7) in the frame structure of the SL, and a last symbol in the frame structure of the SL is used for GP as an illustration. As shown in fig. 13, since the first symbol carrying the DMRS sequence is the 3 rd symbol (symbol 2) in the frame structure of the SL and N is 1, the first symbol is the 4 th symbol (symbol 3) in the frame structure of the SL, and the second symbol is the 2 nd symbol (symbol 1) in the frame structure of the SL, the HARQ-ACK is first mapped from the RE corresponding to the 4 th symbol (symbol 3) in the frame structure of the SL, and after the HARQ-ACK mapping is completed, the CSI is mapped from the RE corresponding to the 2 nd symbol (symbol 1) in the frame structure of the SL, rate matching is performed on the RE resources on which the HARQ-ACK is mapped, and the mapping is sequentially mapped to the REs corresponding to the 8 th symbol (symbol 7) in the frame structure of the SL in the ascending order of the symbol numbers in the frame structure of the SL.

Further, in the foregoing implementation manner, when the SL further includes third feedback information, the step S11 (mapping the feedback information on the target RE of the SL) further includes:

and mapping the third feedback information from the RE corresponding to the second symbol.

Exemplarily, referring to fig. 14, the 3 rd symbol (symbol 2), N ═ 1 in the frame structure of fig. 14 in which the first symbol carrying the DMRS sequence is SL, the SL includes three feedback information of HARQ-ACK, CSI part1 and CSI part2, the transmission priority of HARQ-ACK is higher than that of CSI part1, the transmission priority of CSI part1 is higher than that of CSIpart2, CSI part1 performs rate matching on RE resources mapped with HARQ-ACK, CSI part2 performs rate matching on RE resources mapped with CSI part1 and RE resources mapped with HARQ-ACK, the third symbol is the 11 th symbol (symbol 10) of the frame structure of SL, and the last symbol in the frame structure of SL is used for GP. As shown in fig. 14, since the first symbol is the 3 rd symbol (symbol 2) in the frame structure of SL where the symbol carrying the DMRS sequence is SL, the first symbol is the 4 th symbol (symbol 3) in the frame structure of SL, and the second symbol is the 2 nd symbol (symbol 1) in the frame structure of SL, HARQ-ACK is mapped from the RE corresponding to the 4 th symbol (symbol 3) in the frame structure of SL first, after HARQ-ACK mapping is completed, CSI part1 is mapped from the RE corresponding to the 2 nd symbol (symbol 1) in the frame structure of SL, and RE resources mapping HARQ-ACK are rate-matched, and finally, after CSI part1 mapping is completed, part2 is mapped from the RE corresponding to the 2 nd symbol (CSI symbol RE 1) in the frame structure of SL, and RE resources mapping HARQ-ACK and RE resources mapping CSI part1 are rate-matched, and sequentially mapped to REs corresponding to the 11 th symbol (symbol 10) in the frame structure of the SL in the ascending order of the symbol numbers in the frame structure of the SL.

Optionally, specifically, when the SL includes at least two pieces of feedback information, the at least two pieces of feedback information are independently encoded, and the resource mapped with the first target feedback information is rate-matched or data-punctured, and the second target feedback information is mapped on the target RE of the SL, and the feedback information in the SL is mapped on the RE corresponding to the first symbol to the third symbol, step S11 in the foregoing embodiment (mapping the feedback information on the target RE of the SL) may specifically be:

mapping first feedback information and second feedback information from an RE corresponding to the first symbol;

the first feedback information is feedback information with the highest transmission priority in the at least two pieces of feedback information, and the second feedback information is feedback information with the second highest transmission priority in the at least two pieces of feedback information; the first symbol is an Nth symbol which is not used for bearing the DMRS sequence and is behind the target symbol; n is a positive integer.

Exemplarily, referring to fig. 15, in fig. 15, a 3 rd symbol (symbol 2) and N ═ 1 in a frame structure with a first symbol carrying a DMRS sequence as SL, the SL includes two feedback information, HARQ-ACK and CSI, a transmission priority of HARQ-ACK is higher than a transmission priority of CSI, rate matching is performed on RE resources of CSI mapped HARQ-ACK, the third symbol is an 8 th symbol (symbol 7) in the frame structure of the SL, and a last symbol in the frame structure of the SL is used for GP as an illustration. As shown in fig. 15, since the first symbol carrying the DMRS sequence is the 3 rd symbol in the frame structure of the SL, and therefore the first symbol is the 4 th symbol (symbol 3) in the frame structure of the SL, the HARQ-ACK is mapped from the RE corresponding to the 4 th symbol (symbol 3) in the frame structure of the SL first, after the HARQ-ACK mapping is completed, the CSI performs rate matching on the resource for mapping the HARQ-ACK, and sequentially maps to the RE corresponding to the 8 th symbol (symbol 7) in the frame structure of the SL in the ascending order of the symbol numbers in the frame structure of the SL.

Further, in the above embodiment, when the SL further includes third feedback information, the step S11 (mapping the feedback information on the target RE of the SL) further includes:

mapping the third feedback information from an RE corresponding to a second symbol;

the second symbol is a symbol of a first non-bearing DMRS sequence in the frame structure of the SL.

Exemplarily, referring to fig. 16, the 3 rd symbol (symbol 2) in the frame structure of fig. 16, where the first symbol carrying the DMRS sequence is SL, the SL includes three feedback information, namely HARQ-ACK, CSI part1 and CSI part2, the transmission priority of HARQ-ACK is higher than that of CSI part1, the transmission priority of CSI part1 is higher than that of CSIpart2, CSI part1 performs rate matching on RE resources mapped with HARQ-ACK, CSI part2 performs rate matching on RE resources mapped with CSI part1 and RE resources mapped with HARQ-ACK, the third symbol is the 11 th symbol (symbol 10) of the frame structure of the SL, and the last symbol in the frame structure of the SL is GP. As shown in fig. 16, since the first symbol carrying the DMRS sequence is the 3 rd symbol (symbol 2) in the frame structure of SL, therefore, the 4 th symbol (symbol 3) in the frame structure with the first symbol being SL, the 2 nd symbol (symbol 1) in the frame structure with the second symbol being SL, mapping HARQ-ACK is performed first from the RE corresponding to the 4 th symbol (symbol 3) in the frame structure with SL, after the HARQ-ACK mapping is completed, the CSI part1 maps to perform rate matching on the RE resources of the HARQ-ACK, and finally after the CSI part1 mapping is completed, the CSI part2 is mapped from the RE corresponding to the 2 nd symbol (symbol 1) in the frame structure of the SL, and rate-matches the RE resources mapped to HARQ-ACK and the RE resources mapped to CSI part1, and sequentially mapped to REs corresponding to the 11 th symbol (symbol 10) in the frame structure of the SL in the ascending order of the symbol numbers in the frame structure of the SL.

Optionally, when the SL includes at least two pieces of feedback information, the at least two pieces of feedback information are independently encoded, and the second target feedback information is mapped to the target REs of the SL by performing rate matching or data puncturing on the resource to which the first target feedback information is mapped, and the first feedback information is mapped from the RE corresponding to the first symbol, the second feedback information is mapped from the RE corresponding to the second symbol, and the third feedback information is mapped from the RE corresponding to the second symbol, step S11 in the above embodiment (mapping the feedback information to the target RE of the SL) includes:

mapping feedback information in a sidelink SL on REs corresponding to a symbol before the first symbol to a symbol for GP in a frame structure of the SL, and mapping feedback information in the sidelink SL on REs corresponding to a first symbol not carrying DMRS sequence to a fourth symbol in the frame structure of the SL.

Wherein the first target feedback information and the second target feedback information are feedback information in the at least two pieces of feedback information, the transmission priority of the second target feedback information is lower than that of the first target feedback information, the first target feedback information and the second target feedback information are both feedback information in the at least two pieces of feedback information, the first feedback information is feedback information with the highest transmission priority in the at least two pieces of feedback information, the second feedback information is feedback information with the second highest transmission priority in the at least two pieces of feedback information, the first symbol is a symbol of an nth non-bearing DMRS sequence after a target symbol, and the second symbol is a previous symbol of the target symbol; n is a positive integer.

That is, when the SL includes at least two pieces of feedback information, the at least two pieces of feedback information are independently encoded, and the resource on which the first target feedback information is mapped is rate-matched or data-punctured, the second target feedback information is mapped to the target REs of the SL, and the first feedback information is mapped from the REs corresponding to the first symbols, the second feedback information is mapped from the REs corresponding to the second symbols, and the third feedback information is mapped from the REs corresponding to the second symbols, the feedback information in the SL is loop-mapped.

Illustratively, referring to fig. 17, fig. 17 includes in SL: HARQ-ACK, CSI part1, and CSIpart2, the first symbol after the target symbol is the first non-DMRS sequence-bearing symbol (N ═ 1), the first DMRS sequence-bearing symbol is the 3 rd symbol (symbol 2) in the frame structure of SL, the fourth symbol is the 1 st symbol (symbol 0) in the frame structure of SL, and the last symbol in the frame structure of SL used for GP is illustrated. As shown in fig. 17, since the first symbol carrying the DMRS sequence is the 3 rd symbol (symbol 2) in the frame structure of the SL, the first symbol is the 4 th symbol (symbol 3) in the frame structure of the SL, and the second symbol is the 2 nd symbol (symbol 1) in the frame structure of the SL, HARQ-ACK is first mapped from the RE corresponding to the 4 th symbol (symbol 3) in the frame structure of the SL, after HARQ-ACK mapping is completed, CSI part1 is mapped from the RE corresponding to the 2 nd symbol (symbol 1) in the frame structure of the SL, and rate matching is performed on the RE resources mapping HARQ-ACK, after CSI part1 mapping is completed, CSI part2 rate-matches the RE resources of CSI mapping part1, and maps to the RE corresponding to the second last symbol in the frame structure of the SL in ascending order of symbol numbers in the frame structure of the SL, and then mapping to REs corresponding to the fourth symbol (symbol 0) in sequence according to the ascending order of symbol numbers in the SL frame structure, starting from the RE corresponding to the first symbol not carrying the DMRS sequence in the SL frame structure.

In another embodiment of the present invention, an apparatus for mapping feedback information is provided, and specifically, as shown in fig. 18, the apparatus 180 includes:

a mapping unit 181, configured to map the feedback information on a target resource element RE of the side link SL;

the target symbol is a first symbol carrying the DMRS in the SL, and N is a positive integer.

Optionally, the mapping unit 181 is further configured to jointly encode at least two pieces of feedback information when the SL includes the at least two pieces of feedback information.

Optionally, the SL includes at least two feedback information, and the at least two feedback information are independently encoded;

the mapping unit 181 is specifically configured to map the second target feedback information to the target RE of the SL by performing rate matching or data puncturing on the resource to which the first target feedback information is mapped;

Optionally, the mapping unit 181 is specifically configured to map the at least two pieces of feedback information from an RE corresponding to the first symbol;

the first symbol is an Nth symbol which is not used for bearing the DMRS sequence after a target symbol, or the first symbol is a symbol which is one symbol before the target symbol, the target symbol is a symbol which is the first symbol bearing the DMRS in the SL, and N is a positive integer.

Optionally, the mapping unit 181 is specifically configured to map the first feedback information from an RE corresponding to the first symbol, and map the second feedback information from an RE corresponding to the second symbol;

the first feedback information is feedback information with the highest transmission priority in the at least two pieces of feedback information, the second feedback information is feedback information with the second highest transmission priority in the at least two pieces of feedback information, the first symbol is a symbol of an Nth non-bearing DMRS sequence after a target symbol, the second symbol is a previous symbol of the target symbol, the target symbol is a symbol of a first bearing DMRS in the SL, and N is a positive integer.

Optionally, the SL further includes third feedback information;

the mapping unit 181 is specifically configured to map the third feedback information from an RE corresponding to a second symbol.

Optionally, the mapping unit 181 is specifically configured to map the first feedback information and the second feedback information from an RE corresponding to the first symbol;

the first feedback information is feedback information with the highest transmission priority in the at least two pieces of feedback information, and the second feedback information is feedback information with the second highest transmission priority in the at least two pieces of feedback information; the first symbol is an Nth symbol which is not used for bearing the DMRS sequence and is behind a target symbol, the target symbol is a first symbol which is used for bearing the DMRS in the SL, and N is a positive integer.

Optionally, the SL further includes third feedback information;

the mapping unit 181 is specifically configured to map the third feedback information from an RE corresponding to a second symbol;

Optionally, the mapping unit 181 is specifically configured to map the feedback information in the SL on REs corresponding to the first symbol to the third symbol;

Optionally, the mapping unit 181 is specifically configured to map the feedback information in the sidelink SL on an RE corresponding to a symbol before the symbol used for the GP in the frame structure from the first symbol to the SL, and an RE corresponding to a first symbol not carrying a DMRS sequence to a fourth symbol in the frame structure of the SL;

the third RE is located before the first symbol.

Optionally, the mapping unit 181 is further configured to discard a part of data in the feedback information in the SL and map remaining data in the feedback information in the SL on a target resource element RE for transmission when the number of REs required for mapping the feedback information in the SL is greater than a preset threshold.

The apparatus for mapping feedback information according to the embodiment of the present invention maps feedback information on a target resource element RE of a sidelink SL, and since the starting position of the target RE corresponds to a first symbol, and the first symbol is associated with a symbol carrying a DMRS sequence in a frame structure of the SL, that is, in the embodiment of the present invention, the starting position of the target RE for mapping feedback information is determined according to the symbol carrying the DMRS sequence in the frame structure of the SL, compared with the prior art in which a CSI part1 is directly mapped on a RE corresponding to a symbol of a first non-DMRS of a PUSCH, in the embodiment of the present invention, the starting position of the target RE for mapping feedback information is determined according to the symbol carrying the DMRS sequence, so that the embodiment of the present invention can reduce or avoid sending feedback information using a RE corresponding to a symbol for AGC in the frame structure of the SL, and improve the probability of successful demodulation of the feedback information, therefore, the embodiment of the present invention can solve the problem that the mapping mechanism of the feedback information in the prior art is used to make the demodulation success probability of the feedback information mapped on the RE corresponding to the symbol used for AGC low.

Fig. 19 is a schematic hardware structure diagram of an apparatus for mapping feedback information, where the apparatus 190 for mapping feedback information includes, but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the apparatus for mapping feedback information shown in fig. 19 does not constitute a limitation of the apparatus for mapping feedback information, and the apparatus for mapping feedback information may include more or less components than those shown, or combine some components, or a different arrangement of components. In the embodiment of the present invention, the device for mapping feedback information includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

A radio frequency unit 101, configured to map the feedback information on a target resource element RE of the side link SL;

It should be understood that, in the embodiment of the present invention, the radio frequency unit 101 may be used for receiving and sending signals during a message transmission or call process, and specifically, after receiving downlink data from a base station, the downlink data is processed by the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 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. In addition, the radio frequency unit 101 can also communicate with a network and other devices through a wireless communication system.

The means for mapping feedback information 190 provides the user with wireless broadband internet access via the network module 102, such as helping the user send and receive e-mails, browse web pages, and access streaming media.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into an audio signal and output as sound. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the apparatus for mapping feedback information 190 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.

The input unit 104 is used to receive an audio or video signal. The input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the Graphics processor 1041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the network module 102. The microphone 1042 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode.

The means 190 for mapping feedback information further comprises at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or the backlight when the device 190 mapping the feedback information moves to the ear. As one type of motion sensor, an accelerometer sensor can detect the magnitude of acceleration in multiple directions (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify device gestures (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration) mapping feedback information, and vibration identification related functions (such as pedometer, tapping), etc.; the sensors 105 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the apparatus mapping the feedback information. Specifically, the user input unit 107 includes a touch panel 1071 and other input devices 1072. Touch panel 1071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 1071 (e.g., operations by a user on or near touch panel 1071 using a finger, stylus, or any suitable object or attachment). The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and receives and executes commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. Specifically, other input devices 1072 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.

Further, the touch panel 1071 may be overlaid on the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although in fig. 19, the touch panel 1071 and the display panel 1061 are two independent components to implement the input and output functions of the apparatus for mapping feedback information, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the apparatus for mapping feedback information, and is not limited herein.

The interface unit 108 is an interface through which an external device is connected to the device 190 for mapping feedback information. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the means for mapping feedback information 190 or may be used to transmit data between the means for mapping feedback information 190 and an external device.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 110 is a control center of the apparatus for mapping feedback information, connects a plurality of parts of the entire apparatus for mapping feedback information using various interfaces and lines, and performs various functions of the apparatus for mapping feedback information and processes data by running or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby monitoring the entire apparatus for mapping feedback information. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The device 190 for mapping feedback information may further include a power supply 111 (such as a battery) for supplying power to the plurality of components, and preferably, the power supply 111 may be logically connected to the processor 110 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.

In addition, the device 190 for mapping feedback information includes some functional modules that are not shown, and are not described herein again.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements multiple processes of the method for mapping feedback information in the foregoing embodiments, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

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

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for mapping feedback information, comprising:

2. The method of claim 1, wherein the first symbol is the nth symbol following the target symbol that does not carry the DMRS sequence, or the first symbol is a symbol preceding the target symbol;

the target symbol is a first symbol carrying the DMRS in the SL, wherein N is a positive integer.

3. The method of claim 2, further comprising:

4. The method of claim 1, wherein the SL includes at least two feedback information, and wherein the at least two feedback information are independently encoded;

the mapping of the feedback information on the target RE of the SL includes:

mapping second target feedback information on the target REs of the SL by performing rate matching or data puncturing on resources on which first target feedback information is mapped;

5. The method of claim 4, wherein the mapping the feedback information on the target RE of the SL comprises:

6. The method of claim 4, wherein the mapping the feedback information on the target RE of the SL comprises:

7. The method of claim 6, wherein the SL further comprises third feedback information;

the mapping the feedback information on the target RE of the SL further includes:

8. The method of claim 4, wherein the mapping the feedback information on the target RE of the SL comprises:

9. The method of claim 8, wherein the SL further comprises third feedback information;

10. The method according to any of claims 2-8, wherein the mapping feedback information in the SL for transmission on a target resource element RE of the SL comprises:

11. The method according to any of claims 2-8, wherein the mapping feedback information to be transmitted on target Resource Elements (REs) of the SL comprises:

mapping the feedback information on REs corresponding to the first symbol to the previous symbol of the symbol for GP in the SL frame structure and the first non-bearing DMRS sequence to the fourth symbol in the SL frame structure;

the fourth RE is located before the first symbol.

12. The method according to any one of claims 2 to 8,

the mapping of the feedback information on the target RE of the SL includes:

discarding partial data in the feedback information in the SL when the number of REs required for mapping the feedback information in the SL is greater than a preset threshold;

and mapping the residual data in the feedback information in the SL to a target resource element RE for transmission.

13. An apparatus for mapping feedback information, comprising:

14. The apparatus of claim 13, wherein the first symbol is a symbol of an nth non-carrier DMRS sequence after a target symbol, or the first symbol is a symbol previous to the target symbol;

15. The apparatus of claim 14, wherein the mapping unit is further configured to jointly encode at least two feedback information in case that the at least two feedback information are included in the SL.

16. The apparatus of claim 13, wherein the SL comprises at least two feedback information, and wherein the at least two feedback information are independently encoded;

the mapping unit is specifically configured to map second target feedback information on the target RE of the SL by performing rate matching or data puncturing on a resource on which first target feedback information is mapped;

17. The apparatus of claim 16,

the mapping unit is specifically configured to map the at least two pieces of feedback information from an RE corresponding to the first symbol;

18. The apparatus of claim 16,

the mapping unit is specifically configured to map first feedback information from an RE corresponding to the first symbol, and map second feedback information from an RE corresponding to a second symbol;

19. The apparatus of claim 18, wherein the SL further comprises third feedback information;

the mapping unit is specifically configured to map the third feedback information from an RE corresponding to a second symbol.

20. The apparatus of claim 16,

the mapping unit is specifically configured to map first feedback information and second feedback information from an RE corresponding to the first symbol;

21. The apparatus of claim 20, wherein the SL further comprises third feedback information;

the mapping unit is specifically configured to map the third feedback information from an RE corresponding to a second symbol;

22. The apparatus of any one of claims 14-20,

the mapping unit is specifically configured to map the feedback information in the SL on REs corresponding to the first symbol to the third symbol;

23. The apparatus of any one of claims 14-20,

the mapping unit is specifically configured to map the feedback information in the sidelink SL on an RE corresponding to a symbol before the symbol used for GP in the frame structure from the first symbol to the SL, and an RE corresponding to a first symbol not carrying a DMRS sequence to a fourth symbol in the frame structure of the SL;

the third RE is located before the first symbol.

24. The apparatus of any one of claims 14-20,

the mapping unit is further configured to discard a part of data in the feedback information in the SL and map remaining data in the feedback information in the SL on a target resource element RE for transmission when the number of REs required for mapping the feedback information in the SL is greater than a preset threshold.

25. An apparatus for mapping feedback information, comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method for mapping feedback information according to any one of claims 1 to 12.

26. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method of mapping feedback information according to any one of claims 1 to 12.