CN111294182B - Method and device for determining frequency domain resources for receiving and transmitting PSFCH - Google Patents

Method and device for determining frequency domain resources for receiving and transmitting PSFCH Download PDF

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CN111294182B
CN111294182B CN201910240341.9A CN201910240341A CN111294182B CN 111294182 B CN111294182 B CN 111294182B CN 201910240341 A CN201910240341 A CN 201910240341A CN 111294182 B CN111294182 B CN 111294182B
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psfch
frequency domain
side chain
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CN111294182A (en
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周欢
顾祥新
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

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Abstract

A method and apparatus for determining frequency domain resources for receiving and transmitting PSFCH, the method comprising: sending side chain information, and determining a starting frequency domain position for sending the side chain information; determining an Mth initial position of a frequency domain resource block of an Mth PSFCH used for feeding back the side chain information by the Mth receiving UE according to the initial frequency domain position; determining the number of frequency domain resource blocks of the Mth PSFCH; and determining the Mth frequency domain resource of the PSFCH according to the Mth starting position and the number of the frequency domain resource blocks of the Mth PSFCH, so as to receive the Mth PSFCH on the Mth frequency domain resource. The scheme of the invention can determine the Mth PSFCH to be transmitted and received on which Mth frequency domain resource, and better meet the requirement of the NR V2X technology.

Description

Method and device for determining frequency domain resources for receiving and transmitting PSFCH
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for determining frequency domain resources for receiving and transmitting a PSFCH.
Background
In 2018, the 80 th congress of the third Generation Partnership Project (3rd Generation Partnership Project, 3GPP) passed the research Project of 5G New Radio (NR) internet of vehicles (Vehicle to evolution, V2X). Specifically, the V2X technology includes vehicle-vehicle (V2V), vehicle-to-person (V2P), vehicle-to-network (V2N), vehicle-to-road (V2I), vehicle-to-surrounding arbitrary node (V2X) technology, road traffic environment information is collected by using wireless communication, sensing detection and other technologies, and reliable traffic information is provided for vehicle drivers and pedestrians through real-time, efficient and bidirectional information interaction and sharing between vehicles, vehicles and persons, and vehicles and infrastructure, so that road system safety is effectively improved and traffic environment is improved.
In the LTE V2X system, a Physical Sidelink Control Channel (PSCCH) and a Physical Sidelink Shared Channel (PSCCH) are both transmitted in respective Resource pools, where a Resource pool is determined by a subframe set and a same Physical Resource Block (PRB) set on each subframe belonging to the Resource pool. In addition, a one-to-one binding relationship exists between the PSCCH resource pool and the PSCCH resource pool, that is, a PSCCH resource indicated by a PSCCH transmitted in the PSCCH resource pool belongs to the PSCCH resource pool bound to the PSCCH resource pool.
However, in the existing LTE V2X, Feedback for the PSSCH has not been set, for example, side chain Hybrid Automatic Repeat reQuest (Sidelink HARQ) acknowledgement/negative acknowledgement (ACK/NACK), but it is desirable to introduce Feedback in the NR to support HARQ retransmission, so a new Physical side chain Feedback Channel (PSFCH) Channel needs to be introduced to meet a requirement of carrying at least HARQ-ACK information, and even further meet a requirement of carrying CSI report.
At the 3GPP RAN1 time meeting, it was concluded that it is recommended to support at least the PSFCH in the next symbol or symbols of a slot, and the time interval between the PSFCH and the PSSCH is pre-configured. But how to determine the frequency domain resources of the PSFCH is not yet determined.
There is a need for a method of determining frequency domain resources of a PSFCH that satisfies the needs of the NR V2X technique.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method and apparatus for determining frequency domain resources for receiving and transmitting PSFCH, a storage medium, a transmitting UE, and a receiving UE, which can determine the mth frequency domain resource on which to transmit and receive the mth PSFCH, thereby better satisfying the requirement of the NR V2X technology.
To solve the foregoing technical problem, an embodiment of the present invention provides a method for determining frequency domain resources for receiving a PSFCH, including the following steps: sending side chain information, and determining a starting frequency domain position for sending the side chain information; determining the Mth initial position of the frequency domain resource block of the Mth PSFCH used by the Mth receiving UE for feeding back the side chain information according to the initial frequency domain position; determining the number of frequency domain resource blocks of the Mth PSFCH; determining an Mth frequency domain resource of the PSFCH according to the Mth starting position and the number of frequency domain resource blocks of the Mth PSFCH, so as to receive the Mth PSFCH on the Mth frequency domain resource, wherein M is a positive integer and is used for representing a resource index of the PSFCH, and the side chain information is selected from: psch and PSCCH.
Optionally, sequentially determining, according to the starting frequency domain position, an mth starting position of a frequency domain resource block of an mth PSFCH used by the mth receiving UE for feeding back the side chain information includes: determining the number N of values that can be taken in the range of values of the initial cyclic shift cs (ii) a Determining an index n of a starting resource block of the PSFCH PSFCHRBstart (ii) a Determining the maximum number K of the side chain information received in a single time slot; determining a first offset value N subCH (ii) a Determining the Mth starting position by using the following formula:
Figure BDA0002009452060000021
wherein n is PRB,M Denotes the Mth starting position, n PSFCHRBstart Index, N, representing the PSFCH starting resource block cs Representing the number of values which can be taken in the value range of the initial cyclic shift, m representing the initial frequency domain position of the side chain information, K representing the maximum number of the side chain information received in a single time slot, wherein K is a positive integer, N subCH Representing the first offset value.
Optionally, the number of frequency domain resource blocks of the mth PSFCH is configured in a high layer; the number N of values that can be taken in the range of values of the initial cyclic shift cs Configured or predefined for higher layers; determining an index n of a starting resource block of the PSFCH PSFCHRBstart Configured for a higher layer; the maximum number K of the side chain information received in a single time slot is determined to be configured by a high layer or predefined; the first offset value N subCH Configured for higher layers.
Optionally, if the side chain information is the psch, the maximum number K of the side chain information received in the single timeslot is the maximum number of the resource units included in the single timeslot.
Optionally, if the side chain information is PSCCH, the maximum number K of the side chain information received in the single time slot is the maximum number of the monitoring time of the PSCCH in the single time slot.
Optionally, sequentially determining the mth receiving UE according to the starting frequency domain positionThe Mth starting position of the frequency domain resource block of the Mth PSFCH for feeding back the side chain information comprises: determining a second offset value offset 1 (ii) a Determining the Mth starting position by using the following formula:
Figure BDA0002009452060000031
n PRB,M ＝n PRB +offset 1 x (M-1); wherein n is PRB,M Denotes the Mth starting position, n PRB Denotes a first starting position, n PSFCHRBstart Index, N, representing the PSFCH starting resource block cs Represents the number of values that can be taken in the range of values of the initial cyclic shift, m represents the initial frequency domain position of the side chain information, K represents the maximum number of the side chain information received in a single time slot, and K is a positive integer, offset 1 Representing the second offset value.
Optionally, the value of the initial cyclic shift of the mth PSFCH is: n is cs,M ＝{K[m+N subCH ×(M-1)]}％N cs (ii) a Wherein n is cs,M A value representing an initial cyclic shift of the Mth PSFCH, N cs Representing the number of values which can be taken in the value range of the initial cyclic shift, m representing the initial frequency domain position of the side chain information, K representing the maximum number of the side chain information received in a single time slot, wherein K is a positive integer, N subCH Representing a first offset value.
Optionally, the value of the initial cyclic shift of the mth PSFCH is: n is cs ＝(Km)％N cs ；n cs,M ＝n cs +(M-1)*offset 2 (ii) a Wherein n is cs,M A value, n, representing the initial cyclic shift of the Mth PSFCH cs Represents the value of the initial cyclic shift of the first PSFCH, N cs Represents the number of values that can be taken in the value range of the initial cyclic shift, m represents the initial frequency domain position of the side chain information, K represents the maximum number of the side chain information received in a single time slot, and K is a positive integer, offset 2 Representing a third offset value.
To solve the foregoing technical problem, an embodiment of the present invention provides a method for determining frequency domain resources for transmitting a PSFCH, including the following steps: receiving side chain information and determining a starting frequency domain position for receiving the side chain information; determining an Mth initial position of an Mth PSFCH frequency domain resource block used for feeding back the side chain information according to the initial frequency domain position; determining the number of frequency domain resource blocks of the Mth PSFCH; determining an Mth frequency domain resource of the PSFCH according to the Mth starting position and the number of frequency domain resource blocks of the Mth PSFCH, so as to send the Mth PSFCH on the Mth frequency domain resource; wherein M is a positive integer for representing the resource index of the PSFCH, and the side chain information is selected from: psch and PSCCH.
Optionally, sequentially determining, according to the starting frequency domain position, an mth starting position of a frequency domain resource block of an mth PSFCH used by the mth receiving UE for feeding back the side chain information includes: determining the number N of values that can be taken in the range of values of the initial cyclic shift cs (ii) a Determining an index n of a starting resource block of the PSFCH PSFCHRBstart (ii) a Determining the maximum number K of the side chain information received in a single time slot; determining a first offset value N subCH (ii) a Determining the Mth starting position by using the following formula:
Figure BDA0002009452060000041
wherein n is PRB,M Denotes the Mth starting position, n PSFCHRBstart Index, N, representing the PSFCH starting resource block cs Representing the number of values which can be taken in the value range of the initial cyclic shift, m representing the initial frequency domain position of the side chain information, K representing the maximum number of the side chain information received in a single time slot, wherein K is a positive integer, N is subCH Representing the first offset value.
Optionally, the number of frequency domain resource blocks of the mth PSFCH is configured by a high layer; the number N of values that can be taken in the range of values of the initial cyclic shift cs Configured or predefined for higher layers; determining an index n of a starting resource block of the PSFCH PSFCHRBstart Configured for a higher layer; the maximum number K of the side chain information received in a single time slot is determined to be configured or predefined by a high layer; the first offset value N subCH Configured for the higher layer.
Optionally, if the side chain information is the psch, the maximum number K of the side chain information received in the single timeslot is the maximum number of the resource units included in the single timeslot.
Optionally, if the side chain information is the PSCCH, the maximum number K of the side chain information received in the single time slot is the maximum number of the monitoring time of the PSCCH in the single time slot.
Optionally, sequentially determining, according to the starting frequency domain position, an mth starting position of a frequency domain resource block of an mth PSFCH used by the mth receiving UE for feeding back the side chain information includes: determining a second offset value offset 1 (ii) a Determining the Mth starting position by using the following formula:
Figure BDA0002009452060000042
n PRB,M ＝n PRB +offset 1 x (M-1); wherein n is PRB,M Denotes the Mth starting position, n PRB Denotes a first starting position, n PSFCHRBstart Index, N, representing the PSFCH starting resource block cs Representing the number of values that can be taken in the range of values of the initial cyclic shift, m representing the initial frequency domain position of the side chain information, K representing the maximum number of the side chain information received in a single time slot, and K being a positive integer, offset 1 Representing the second offset value.
Optionally, the value of the initial cyclic shift of the mth PSFCH is: n is a radical of an alkyl radical cs,M ＝{K[m+N subCH ×(M-1)]}％N cs (ii) a Wherein n is cs,M A value representing an initial cyclic shift of the Mth PSFCH, N cs Representing the number of values which can be taken in the value range of the initial cyclic shift, m representing the initial frequency domain position of the side chain information, K representing the maximum number of the side chain information received in a single time slot, wherein K is a positive integer, N subCH Representing a first offset value.
Optionally, the value of the initial cyclic shift of the mth PSFCH is: n is cs ＝(Km)％N cs ；n cs,M ＝n cs +(M-1)*offset 2 (ii) a Wherein n is cs,M A value representing the initial cyclic shift of the Mth PSFCH, n cs A value representing the initial cyclic shift of the first PSFCH, N cs Represents the number of values that can be taken in the value range of the initial cyclic shift, m represents the initial frequency domain position of the side chain information, K represents the maximum number of the side chain information received in a single time slot, and K is a positive integer, offset 2 Representing a third offset value.
To solve the foregoing technical problem, an embodiment of the present invention provides an apparatus for determining frequency domain resources for receiving a PSFCH, including: the sending module is suitable for sending the side chain information and determining the starting frequency domain position for sending the side chain information; a first starting position determining module, adapted to determine, according to the starting frequency domain position, an mth starting position of a frequency domain resource block of an mth PSFCH used by an mth receiving UE for feeding back the side chain information; the first number determining module is suitable for determining the number of the frequency domain resource blocks of the Mth PSFCH; a first frequency domain resource determining module, adapted to determine an mth frequency domain resource of the PSFCH according to the mth starting position and the number of frequency domain resource blocks of the mth PSFCH, so as to receive the mth PSFCH on the mth frequency domain resource; wherein, M is a positive integer used to represent the resource index of the PSFCH, and the side chain information is selected from: psch and PSCCH.
To solve the foregoing technical problem, an embodiment of the present invention provides an apparatus for determining frequency domain resources for transmitting a PSFCH, including: the receiving module is suitable for receiving the side chain information and determining a starting frequency domain position for receiving the side chain information; a second starting position determining module, adapted to determine, according to the starting frequency domain position, an mth starting position of a frequency domain resource block of an mth PSFCH for feeding back the side chain information; the second number determining module is suitable for determining the number of frequency domain resource blocks of the Mth PSFCH; a second frequency domain resource determining module, adapted to determine an mth frequency domain resource of the PSFCH according to the mth starting position and the number of frequency domain resource blocks of the mth PSFCH, so as to transmit the mth PSFCH on the mth frequency domain resource; wherein M is a positive integer for representing the resource index of the PSFCH, and the side chain information is selected from: psch and PSCCH.
To solve the foregoing technical problem, an embodiment of the present invention provides a storage medium, on which computer instructions are stored, and when the computer instructions are executed, the steps of the method for receiving frequency domain resources of a PSFCH or the steps of the method for transmitting frequency domain resources of a PSFCH are executed.
In order to solve the foregoing technical problem, an embodiment of the present invention provides a transmitting UE, including a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes the steps of the method for transmitting frequency domain resources of PSFCH when executing the computer instructions.
To solve the foregoing technical problem, an embodiment of the present invention provides a receiving UE, including a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes the steps of the method for transmitting frequency domain resources of PSFCH when executing the computer instructions.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
in the embodiment of the invention, side chain information is sent, and the initial frequency domain position for sending the side chain information is determined; determining an Mth initial position of a frequency domain resource block of an Mth PSFCH used for feeding back the side chain information by the Mth receiving UE according to the initial frequency domain position; determining the number of frequency domain resource blocks of the Mth PSFCH; determining an Mth frequency domain resource of the PSFCH according to the Mth starting position and the number of frequency domain resource blocks of the Mth PSFCH, so as to receive the Mth PSFCH on the Mth frequency domain resource, wherein M is a positive integer and is used for representing a resource index of the PSFCH, and the sidechain information is selected from: psch and PSCCH. By adopting the above scheme, the mth starting position of the frequency domain resource block of the mth PSFCH used by the mth receiving UE for feeding back the side chain information is determined according to the starting frequency domain position, and the mth PSFCH on which frequency domain resource block the sending UE receives can be determined according to the starting position of the frequency domain resource block, so that the requirement of the NR V2X technology can be better met.
Further, the side chain information may be PSCCH or PSCCH, so that multiple ways may be adopted to determine on which mth frequency domain resource the mth PSFCH is received, and further better meet the requirement of the NR V2X technology.
Further, in the embodiment of the present invention, the value of the initial cyclic shift of the mth PSFCH may also be set, which is helpful to improve the accuracy of determining the information of the mth PSFCH.
Drawings
Fig. 1 is a flowchart of a method for determining frequency domain resources for receiving a PSFCH according to an embodiment of the present invention;
fig. 2 to fig. 5 are schematic diagrams of first to fourth operation scenarios for determining frequency domain resources for receiving PSFCH according to the embodiment of the present invention;
fig. 6 is a flowchart of a method for determining frequency domain resources for transmitting a PSFCH according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an apparatus for determining frequency domain resources of a received PSFCH according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an apparatus for determining frequency domain resources for transmitting a PSFCH according to an embodiment of the present invention.
Detailed Description
In the prior art, a PSFCH is not yet set, and it is difficult to satisfy at least a requirement for carrying HARQ-ACK information and a requirement for carrying CSI reporting.
Specifically, in the LTE V2X system, both PSCCH and PSCCH are transmitted in respective corresponding resource pools, where a resource pool is determined by a set of subframes and the same set of physical resource blocks on each subframe belonging to the resource pool. In addition, a one-to-one binding relationship exists between the PSCCH resource pool and the PSCCH resource pool, that is, a PSCCH resource indicated by a PSCCH transmitted in the PSCCH resource pool belongs to the PSCCH resource pool bound to the PSCCH resource pool. In the current V2X, the bonded PSCCH resource pool and PSCCH resource pool are determined by the same bit map, and there may or may not be overlap between the PRB sets contained in the two resource pools. When overlapping, the PSCCH resource m is within two consecutive RBs, n PRB ＝n subCHRBstart +m*n subCHsize + j, where j is 0 and 1, n subCHRBstart (starting RB index of resource pool) and n subCHsize (the number of PRBs contained in one subchannel in the resource pool) is configured by higher layer parameters. When not overlapping, the PSCCH resource m is within two consecutive RBs, n PRB ＝n PSCCHstart +2 × m + j where j ═ 0 and 1, n PSCCHstart (indicating the lowest RB index of the PSCCH resource) is configured by higher layer parameters.
The process that a User Equipment (UE) determines which RBs are used in a PSSCH resource pool for transmission is as follows: the resource pool of the high-level configuration comprises N subCH Subchannel, subchannel m (m ═ 0, 1., N subCH -1) comprises n in succession subCHsize (number of PRBs contained in one sub-channel in resource pool) number RB, and n PRB ＝n subCHRBstart +m*n subCHsize + j where j is 0,1 subCHsize -1，n subCHRBstart (starting RB index of resource pool) and n subCHsize (the number of PRBs contained in one subchannel within the resource pool) may be configured by higher layer parameters.
The inventor of the present invention has found through research that in the prior art, there has been a conclusion to determine the time domain resource, for example, the PSFCH is in one or more symbols after one slot of the PSSCH, and the time interval between the PSFCH and the PSSCH is pre-configured. However, since it is difficult to determine the frequency domain resources of the PSFCH, it is still impossible to determine on which time-frequency resource the PSFCH is transceived.
In the embodiment of the invention, side chain information is sent, and the initial frequency domain position for sending the side chain information is determined; determining the Mth initial position of the frequency domain resource block of the Mth PSFCH used by the Mth receiving UE for feeding back the side chain information according to the initial frequency domain position; determining the number of frequency domain resource blocks of the Mth PSFCH; determining an Mth frequency domain resource of the PSFCH according to the Mth starting position and the number of frequency domain resource blocks of the Mth PSFCH, so as to receive the Mth PSFCH on the Mth frequency domain resource, wherein M is a positive integer and is used for representing a resource index of the PSFCH, and the sidechain information is selected from: psch and PSCCH. By adopting the above scheme, the mth starting position of the frequency domain resource block of the mth PSFCH used by the mth receiving UE for feeding back the side chain information is determined according to the starting frequency domain position, and the mth PSFCH on which frequency domain resource block the sending UE receives can be determined according to the starting position of the frequency domain resource block, so that the requirement of the NR V2X technology can be better met.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1, fig. 1 is a flowchart of a method for determining frequency domain resources of a received PSFCH according to an embodiment of the present invention. The method of determining frequency domain resources of a received PSFCH may be used for transmitting a UE, and may include steps S11 to S14:
step S11: sending side chain information, and determining a starting frequency domain position for sending the side chain information;
step S12: determining the Mth initial position of the frequency domain resource block of the Mth PSFCH used by the Mth receiving UE for feeding back the side chain information according to the initial frequency domain position;
step S13: determining the number of frequency domain resource blocks of the Mth PSFCH;
step S14: and determining the Mth frequency domain resource of the PSFCH according to the Mth starting position and the number of the frequency domain resource blocks of the Mth PSFCH, so as to receive the Mth PSFCH on the Mth frequency domain resource.
Wherein M is a positive integer for representing the resource index of the PSFCH, and the side chain information is selected from: psch and PSCCH.
In an implementation of step S11, the sending UE may send sidechain information to one or more receiving UEs and determine a starting frequency domain position for sending the sidechain information.
Specifically, the multiple receiving UEs may be set, and the resource index M indicating the PSFCH is used for distinguishing, that is, the first receiving UE, the second receiving UE, and the mth receiving UE.
The side chain information may be selected from: psch and PSCCH.
In the embodiment of the application, the initial frequency domain position of the PSSCH to be sent can be determined, and then the frequency domain resource of the PSFCH is determined in the subsequent steps according to the initial frequency domain position of the PSSCH; and the initial frequency domain position of sending the PSCCH can be determined, so that the frequency domain resource of the PSFCH is determined in the subsequent steps according to the initial frequency domain position of the PSCCH, and the selection and the adoption according to specific conditions are facilitated.
Each receiving UE may feed back the side chain information by using a corresponding PSFCH, and the step of determining the frequency domain resources of the PSFCH may include determining a starting position of a frequency domain resource block and determining the number of the frequency domain resource blocks.
In a specific implementation of step S12, the sending UE may determine a starting position of a frequency-domain resource block of an mth PSFCH used by the mth receiving UE for feeding back the sidechain information.
Specifically, the number N of values that can be taken in the range of values of the initial cyclic shift may be determined first cs Determining an index n of a starting resource block of the PSFCH PSFCHRBstart Determining the maximum number K of side chain information received in a single time slot and determining a first offset value N subCH 。
Further, the number N of values that can be taken in the range of values of the initial cyclic shift cs Determining an index n of a starting resource block of the PSFCH, which may be configured or predefined for higher layers PSFCHRBstart The maximum number K of sidechain information received in the single determined time slot, which can be configured for higher layers, can be configured or predefined for higher layers, and the first offset value N subCH May be configured for higher layers.
Further, the mth start position may be determined using the following equation:
Figure BDA0002009452060000101
wherein n is PRB,M Denotes the Mth starting position, n PSFCHRBstart Index, N, representing the PSFCH starting resource block cs Represents the number of values that can be taken in the range of values of the initial cyclic shift, m represents the side chainThe initial frequency domain position of the information, K represents the maximum number of the side chain information received in a single time slot, K is a positive integer, N subCH Representing the first offset value.
Further, the side chain information may be pscch.
In a first specific implementation manner of the embodiment of the present invention, a sending UE sends side-chain information to M receiving UEs in a multicast manner.
Referring to fig. 2, fig. 2 is a schematic diagram of a first operation scenario for determining frequency domain resources for receiving a PSFCH according to an embodiment of the present invention.
In fig. 2, taking M as 1 and 2 as examples, the sending UE uses the same frequency domain resource, and sends the first psch and the second psch to the first receiving UE and the second receiving UE in sequence in one timeslot, where the mth starting position of the frequency domain resource block for the first receiving UE and the second receiving UE to feed back the PSFCH to the side chain information needs to be determined.
And the transmitting UE determines the Mth initial position of the frequency domain resource block of the PSFCH according to the initial frequency domain position of the PSSCH, wherein the maximum number K of the side chain information received in a single time slot is the maximum number of the resource units contained in the single time slot.
Specifically, the following formula may be adopted to determine the starting position of the frequency domain resource block of the PSFCH:
Figure BDA0002009452060000102
wherein n is PRB,M Denotes the starting position, n, of the first PSSCH or the second PSSCH PSFCHRBstart Index, N, representing the PSFCH starting resource block cs Representing the number of values which can be taken in the value range of the initial cyclic shift, m representing the initial frequency domain position of the side chain information, K representing the maximum number of the side chain information received in a single time slot, wherein K is a positive integer, N subCH Representing the first offset value.
In a second specific implementation manner of the embodiment of the present invention, a sending UE sends side chain information to a single receiving UE in a unicast manner.
Referring to fig. 3, fig. 3 is a schematic diagram of a second operation scenario of determining frequency domain resources for receiving a PSFCH according to an embodiment of the present invention, that is, M is 1.
In fig. 3, the sending UE sends the pscch to the receiving UE in one timeslot, and needs to determine the mth starting position of the frequency domain resource block for the receiving UE to feed back the PSFCH to the side chain information.
And the sending UE determines the initial position of the frequency domain resource block of the PSFCH according to the initial frequency domain position of the PSSCH, wherein the maximum number K of the side chain information received in a single time slot is the maximum number of the resource units contained in the single time slot.
Specifically, the following formula may be adopted to determine the starting position of the frequency domain resource block of the PSFCH:
Figure BDA0002009452060000111
wherein n is PRB Denotes the starting position of the PSSCH, n PSFCHRBstart Index, N, representing the PSFCH starting resource block cs The number of values that can be taken in the value range of the initial cyclic shift is represented, m represents the initial frequency domain position of the side chain information, K represents the maximum number of the side chain information received in a single time slot, and K is a positive integer.
Further, the side chain information may be PSCCH.
In a first specific implementation manner of the embodiment of the present invention, a sending UE sends side-chain information to M receiving UEs in a multicast manner.
Referring to fig. 4, fig. 4 is a schematic diagram of a third operation scenario of determining frequency domain resources for receiving a PSFCH according to an embodiment of the present invention.
In fig. 4, taking M as 1 and 2 as examples, the sending UE uses the same frequency domain resource, and in one time slot, sends the first PSCCH and the second PSCCH to the first receiving UE and the second receiving UE in sequence, and needs to determine the mth starting position of the frequency domain resource block for the first receiving UE and the second receiving UE to perform PSFCH feedback on the side chain information.
And the transmitting UE determines the Mth initial position of the frequency domain resource block of the PSFCH according to the initial frequency domain position of the PSCCH, and the maximum number K of the side chain information received in the single time slot is the maximum number of the resource units contained in the single time slot.
Specifically, the following formula may be adopted to determine the starting position of the frequency domain resource block of the PSFCH:
Figure BDA0002009452060000121
wherein n is PRB,M Denotes a start position, n, of the first PSCCH or the second PSCCH PSFCHRBstart Index, N, representing the PSFCH starting resource block cs Representing the number of values which can be taken in the value range of the initial cyclic shift, m representing the initial frequency domain position of the side chain information, K representing the maximum number of the side chain information received in a single time slot, wherein K is a positive integer, N is subCH Representing the first offset value.
In a fourth specific implementation manner of the embodiment of the present invention, a sending UE sends side-chain information to a single receiving UE in a unicast manner.
Referring to fig. 5, fig. 5 is a schematic diagram of an operating scenario of a fourth method for determining frequency domain resources for receiving a PSFCH according to an embodiment of the present invention, that is, M is 1.
In fig. 5, the sending UE determines the starting position of the frequency domain resource block of the PSFCH according to the starting frequency domain position of the PSCCH, where the maximum number K of the side chain information received in a single time slot is the maximum number of resource units included in the single time slot.
Specifically, the following formula may be adopted to determine the starting position of the frequency domain resource block of the PSFCH:
Figure BDA0002009452060000122
wherein n is PRB Denotes the starting position, n, of the PSCCH PSFCHRBstart Represents the aboveIndex of PSFCH starting resource Block, N cs The number of values that can be taken in the value range of the initial cyclic shift is represented, m represents the initial frequency domain position of the side chain information, K represents the maximum number of the side chain information received in a single time slot, and K is a positive integer.
In the embodiment of the present invention, the side chain information may be a psch or a PSCCH, so that multiple ways may be adopted to determine on which mth frequency domain resource the mth PSFCH is received, and further better meet the requirement of the NR V2X technology.
In another specific implementation manner of the embodiment of the present invention, the step of sequentially determining, according to the starting frequency domain position, an mth starting position of a frequency domain resource block of an mth PSFCH used by an mth receiving UE for feeding back the side chain information may include: first a second offset value offset is determined 1 。
Wherein the second offset value offset 1 May be configured for higher layers.
The mth starting position may then be determined using the following equation:
Figure BDA0002009452060000123
n PRB,M ＝n PRB +offset 1 ×(M-1)；
wherein n is PRB,M Denotes the Mth starting position, n PRB Denotes a first starting position, n PSFCHRBstart Index, N, representing the PSFCH starting resource block cs Representing the number of values that can be taken in the range of values of the initial cyclic shift, m representing the initial frequency domain position of the side chain information, K representing the maximum number of the side chain information received in a single time slot, and K being a positive integer, offset 1 Representing the second offset value.
In the embodiment of the present invention, the starting position of the frequency domain resource block of the PSFCH of the first receiving UE may also be determined by calculation, and then the starting position of the frequency domain resource block of the PSFCH of the mth receiving UE may be determined according to a preset offset value, which is helpful for selecting an appropriate method to use according to specific situations.
With continued reference to fig. 1, in a specific implementation of step S13, the sending UE may determine the number of frequency domain resource blocks of the mth PSFCH.
Further, the number of frequency domain resource blocks of the mth PSFCH may be configured in a higher layer.
In a specific implementation of step S14, the sending UE may determine the mth frequency domain resource of the PSFCH according to the mth starting location and the number of frequency domain resource blocks of the mth PSFCH, so as to receive the mth PSFCH on the mth frequency domain resource.
Specifically, the mth frequency domain resource of the PSFCH may be determined by using the mth start position as a start point and using the frequency domain resource occupied by the number of frequency domain resource blocks of the mth PSFCH as a duration length.
Further, in a specific implementation manner of the embodiment of the present invention, a first method for determining a value of the initial cyclic shift of the mth PSFCH received on the mth frequency domain resource is also provided.
Specifically, the value of the initial cyclic shift of the mth PSFCH may be:
n cs,M ＝{K[m+N subCH ×(M-1)]}％N cs ；
wherein n is cs,M A value representing an initial cyclic shift of the Mth PSFCH, N cs Representing the number of values which can be taken in the value range of the initial cyclic shift, m representing the initial frequency domain position of the side chain information, K representing the maximum number of the side chain information received in a single time slot, wherein K is a positive integer, N subCH Representing a first offset value.
It should be noted that, if the sending UE uses a unicast manner to send the side chain information to a single receiving UE, the value of the initial cyclic shift of the PSFCH may be:
n cs ＝(Km)％N cs 。
in another specific implementation manner of the embodiment of the present invention, a second method for determining a value of the initial cyclic shift of the mth PSFCH received on the mth frequency domain resource is further provided.
Specifically, the value of the initial cyclic shift of the mth PSFCH may be:
n cs ＝(Km)％N cs ；
n cs,M ＝n cs +(M-1)*offset 2 ；
wherein n is cs,M A value, n, representing the initial cyclic shift of the Mth PSFCH cs A value representing the initial cyclic shift of the first PSFCH, N cs Represents the number of values that can be taken in the value range of the initial cyclic shift, m represents the initial frequency domain position of the side chain information, K represents the maximum number of the side chain information received in a single time slot, and K is a positive integer, offset 2 Representing a third offset value.
Wherein the third offset value offset 2 May be higher layer configured.
In the embodiment of the present invention, the value of the initial cyclic shift of the mth PSFCH may be set, which is helpful for improving the accuracy of determining the information of the mth PSFCH.
In the embodiment of the present invention, the mth starting position of the frequency domain resource block of the mth PSFCH, which is used by the mth receiving UE for feeding back the side chain information, is determined according to the starting frequency domain position, and it is possible to determine on which mth frequency domain resource the mth PSFCH is received by the sending UE according to the starting position of the frequency domain resource block, so as to better meet the requirement of the NR V2X technology.
Referring to fig. 6, fig. 6 is a flowchart of a method for determining frequency domain resources for transmitting PSFCH according to an embodiment of the present invention. The method for determining frequency domain resources for transmitting PSFCH may be used for receiving a UE, and may include steps S61 to S64:
step S61: receiving side chain information and determining a starting frequency domain position for receiving the side chain information;
step S62: determining the Mth initial position of the frequency domain resource block of the Mth PSFCH for feeding back the side chain information according to the initial frequency domain position;
step S63: determining the number of frequency domain resource blocks of the Mth PSFCH;
step S64: and determining the Mth frequency domain resource of the PSFCH according to the Mth initial position and the number of the frequency domain resource blocks of the Mth PSFCH, so as to send the Mth PSFCH on the Mth frequency domain resource.
Wherein M is a positive integer for representing the resource index of the PSFCH, and the side chain information is selected from: psch and PSCCH.
Further, sequentially determining, according to the starting frequency domain position, an mth starting position of a frequency domain resource block of an mth PSFCH used by the mth receiving UE for feeding back the sidechain information may include: determining the number N of values that can be taken in the range of values of the initial cyclic shift cs (ii) a Determining an index n of a starting resource block of the PSFCH PSFCHRBstart (ii) a Determining the maximum number K of the side chain information received in a single time slot; determining a first offset value N subCH (ii) a The mth starting position is then determined.
The number of the frequency domain resource blocks of the mth PSFCH may be configured by a high layer; the number N of values that can be taken in the range of values of the initial cyclic shift cs May be configured or predefined for higher layers; determining an index n of a starting resource block of the PSFCH PSFCHRBstart Configurable for higher layers; the maximum number K of the side chain information received in a single time slot is determined to be configured or predefined by a high layer; the first offset value N subCH May be configured for higher layers.
Further, the mth start position may be determined using the following equation:
Figure BDA0002009452060000151
wherein n is PRB,M Denotes the Mth starting position, n PSFCHRBstart Index, N, representing the PSFCH starting resource block cs Representing the number of values that can be taken in the value range of the initial cyclic shift, m representing the initial frequency domain position of the side chain information, K representing the maximum number of the side chain information received in a single time slot, and K being positive integerNumber, N subCH Representing the first offset value.
It should be noted that, if the sending UE sends the sidechain information to a single receiving UE in a unicast manner, the first starting position may be:
Figure BDA0002009452060000152
wherein n is PRB Representing a first starting position, n, of a frequency domain resource block of the PSFCH PSFCHRBstart Index, N, representing the PSFCH starting resource block cs The number of values that can be taken in the value range of the initial cyclic shift is represented, m represents the initial frequency domain position of the side chain information, K represents the maximum number of the side chain information received in a single time slot, and K is a positive integer.
Further, if the side chain information is the psch, the maximum number K of the side chain information received in the single slot is the maximum number of the resource units included in the single slot.
Further, if the side chain information is the PSCCH, the maximum number K of the side chain information received in the single time slot is the maximum number of the monitoring time of the PSCCH in the single time slot.
Further, sequentially determining, according to the starting frequency domain position, an mth starting position of a frequency domain resource block of an mth PSFCH used by the mth receiving UE for feeding back the side chain information includes: determining a second offset value offset 1 ；
Determining the Mth starting position by using the following formula:
Figure BDA0002009452060000161
n PRB,M ＝n PRB +offset 1 ×(M-1)；
wherein n is PRB,M Denotes the Mth starting position, n PRB Denotes a first starting position, n PSFCHRBstart Representing the PSFCH starting resourceIndex of the block, N cs Represents the number of values that can be taken in the range of values of the initial cyclic shift, m represents the initial frequency domain position of the side chain information, K represents the maximum number of the side chain information received in a single time slot, and K is a positive integer, offset 1 Representing the second offset value.
It should be noted that, if the sending UE sends the sidechain information to a single receiving UE in a unicast manner, the first starting position may be:
Figure BDA0002009452060000162
further, the value of the initial cyclic shift of the mth PSFCH may be:
n cs,M ＝{K[m+N subCH ×(M-1)]}％N cs ；
wherein n is cs,M A value representing an initial cyclic shift of the Mth PSFCH, N cs Representing the number of values which can be taken in the value range of the initial cyclic shift, m representing the initial frequency domain position of the side chain information, K representing the maximum number of the side chain information received in a single time slot, wherein K is a positive integer, N subCH Representing a first offset value.
Further, the value of the initial cyclic shift of the mth PSFCH may be:
n cs ＝(Km)％N cs ；
n cs,M ＝n cs +(M-1)*offset 2 ；
wherein n is cs,M A value, n, representing the initial cyclic shift of the Mth PSFCH cs A value representing the initial cyclic shift of the first PSFCH, N cs Represents the number of values that can be taken in the value range of the initial cyclic shift, m represents the initial frequency domain position of the side chain information, K represents the maximum number of the side chain information received in a single time slot, and K is a positive integer, offset 2 Representing a third offset value.
In the embodiment of the present invention, the mth starting position of the frequency domain resource block of the mth PSFCH, which is used by the mth receiving UE for feeding back the side chain information, is determined according to the starting frequency domain position, and the mth PSFCH on which frequency domain resource the receiving UE transmits can be determined according to the starting position of the frequency domain resource block, so as to better meet the requirement of the NR V2X technology.
For more details on the method for determining the frequency domain resource for transmitting the PSFCH shown in fig. 6, please refer to the description in fig. 1 to fig. 5 and perform the above description, which is not repeated herein.
Referring to fig. 7, fig. 7 is a schematic structural diagram of an apparatus for determining frequency domain resources of a receiving PSFCH according to an embodiment of the present invention. The determining the frequency domain resource of the receiving PSFCH may be used for transmitting the UE, and may include:
a sending module 71, adapted to send side chain information, and determine a starting frequency domain position for sending the side chain information;
a first starting position determining module 72, adapted to determine, according to the starting frequency domain position, an mth starting position of a frequency domain resource block of an mth PSFCH used by an mth receiving UE for feeding back the side chain information;
a first number determining module 73, adapted to determine the number of frequency domain resource blocks of the mth PSFCH;
a first frequency-domain resource determining module 74, adapted to determine an mth frequency-domain resource of the PSFCH according to the mth starting position and the number of frequency-domain resource blocks of the MPSFCH, so as to receive the mth PSFCH on the mth frequency-domain resource;
wherein M is a positive integer used to represent the resource index of the PSFCH, and the sidechain information is selected from: psch and PSCCH.
For the principle, specific implementation and beneficial effects of the apparatus for determining frequency domain resources for receiving a PSFCH, please refer to the related description of the method for determining frequency domain resources for receiving a PSFCH shown in the foregoing and fig. 1 to 5, which is not repeated herein.
Fig. 8 is a schematic structural diagram of an apparatus for determining frequency domain resources for transmitting a PSFCH according to an embodiment of the present invention. The determining the frequency domain resource of the received PSFCH may be for receiving a UE, and may include:
a receiving module 81, adapted to receive the side chain information and determine a starting frequency domain position for receiving the side chain information;
a second starting position determining module 82, adapted to determine, according to the starting frequency domain position, an mth starting position of a frequency domain resource block of an mth PSFCH for feeding back the side chain information;
a second number determining module 83 adapted to determine the number of frequency domain resource blocks of the mth PSFCH;
a second frequency-domain resource determining module 84, adapted to determine an mth frequency-domain resource of the PSFCH according to the mth starting location and the number of frequency-domain resource blocks of the mth PSFCH, so as to transmit the mth PSFCH on the mth frequency-domain resource;
wherein M is a positive integer for representing the resource index of the PSFCH, and the side chain information is selected from: psch and PSCCH.
For the principle, specific implementation and beneficial effects of the apparatus for determining frequency domain resources for transmitting PSFCH, please refer to the foregoing description and the related description of the method for determining frequency domain resources for transmitting PSFCH shown in fig. 6, which is not repeated herein.
Embodiments of the present invention also provide a storage medium having stored thereon computer instructions which, when executed, perform the steps of the method for receiving frequency domain resources of a PSFCH shown in fig. 1 to 5, or perform the steps of the method for transmitting frequency domain resources of a PSFCH shown in fig. 6. The storage medium may be a computer-readable storage medium, and may include, for example, a non-volatile (non-volatile) or non-transitory (non-transitory) memory, and may further include an optical disc, a mechanical hard disk, a solid state hard disk, and the like.
An embodiment of the present invention further provides a sending UE, including a memory and a processor, where the memory stores thereon computer instructions capable of being executed on the processor, and the processor executes the computer instructions to perform the steps of the method for receiving frequency domain resources of a PSFCH shown in fig. 1 to 5. The terminal includes, but is not limited to, a mobile phone, a computer, a tablet computer and other terminal devices.
An embodiment of the present invention further provides a receiving UE, which includes a memory and a processor, where the memory stores thereon a computer instruction capable of being executed on the processor, and the processor executes, when executing the computer instruction, the steps of the method for transmitting frequency domain resources of a PSFCH shown in fig. 6. The terminal includes, but is not limited to, a mobile phone, a computer, a tablet computer and other terminal devices.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (21)

1. A method of determining frequency domain resources for receiving a PSFCH, comprising the steps of:
sending side chain information, and determining a starting frequency domain position for sending the side chain information;
determining the Mth initial position of the frequency domain resource block of the Mth PSFCH used by the Mth receiving UE for feeding back the side chain information according to the initial frequency domain position;
determining the number of frequency domain resource blocks of the Mth PSFCH;
determining an Mth frequency domain resource of the PSFCH according to the Mth starting position and the number of frequency domain resource blocks of the Mth PSFCH so as to receive the Mth MPSFCH on the Mth frequency domain resource;
wherein M is a positive integer for representing the resource index of the PSFCH, and the side chain information is selected from: psch and PSCCH.
2. The method of claim 1, wherein sequentially determining, according to the starting frequency domain position, an mth starting position of a frequency domain resource block of an mth PSFCH used by an mth receiving UE for feeding back the side chain information, comprises:
determining the number N of values that can be taken in the range of values of the initial cyclic shift cs ；
Determining an index n of a starting resource block of the PSFCH PSFCHRBstart ；
Determining the maximum number K of the side chain information received in a single time slot;
determining a first offset value N subCH ；
Determining the Mth starting position by using the following formula:
Figure FDA0003715352640000011
wherein n is PRB,M Denotes the Mth starting position, n PSFCHRBstart Index, N, representing the PSFCH starting resource block cs Representing the number of values which can be taken in the value range of the initial cyclic shift, m representing the initial frequency domain position of the side chain information, K representing the maximum number of the side chain information received in a single time slot, wherein K is a positive integer, N is subCH Representing the first offset value.
3. The method for determining frequency domain resources for a received PSFCH of claim 2, wherein the number of frequency domain resource blocks of the mth PSFCH is configured at a higher level;
the number N of values that can be taken in the range of values of the initial cyclic shift cs Configured or predefined for higher layers;
determining an index n of a starting resource block of the PSFCH PSFCHRBstart Configured for a higher layer;
the maximum number K of the side chain information received in a single time slot is determined to be configured or predefined by a high layer;
the first offset value N subCH Configured for higher layers.
4. The method of claim 2, wherein if the sidechain information is PSSCH, the maximum number of sidechain information K received in the single slot is the maximum number of resource units contained in the single slot.
5. The method of claim 2, wherein if the side chain information is a PSCCH, the maximum number K of side chain information received in the single time slot is the maximum number of times the PSCCH listens in the single time slot.
6. The method of claim 1, wherein sequentially determining, according to the starting frequency domain position, an mth starting position of a frequency domain resource block of an mth PSFCH used by an mth receiving UE for feeding back the side chain information, comprises:
determining a second offset value offset 1 ；
Determining the Mth starting position by using the following formula:
Figure FDA0003715352640000021
n PRB,M ＝n PRB +offset 1 ×(M-1)；
wherein n is PRB,M Denotes the Mth starting position, n PRB Denotes a first starting position, n PSFCHRBstart Index, N, representing the PSFCH starting resource block cs Represents the number of values that can be taken in the range of values of the initial cyclic shift, m represents the initial frequency domain position of the side chain information, K represents the maximum number of the side chain information received in a single time slot, and K is a positive integer, offset 1 Representing the second offset value.
7. The method of claim 1, wherein the initial cyclic shift of the mth PSFCH takes on the following values:
n cs,M ＝{K[m+N subCH ×(M-1)]}％N cs ；
wherein n is cs,M A value representing an initial cyclic shift of the Mth PSFCH, N cs Representing the number of values that can be taken in the range of values of the initial cyclic shiftM represents the initial frequency domain position of the side chain information, K represents the maximum number of the side chain information received in a single time slot, K is a positive integer, N subCH Representing a first offset value.
8. The method of claim 1, wherein the initial cyclic shift of the mth PSFCH takes on the following values:
n cs ＝(Km)％N cs ；
n cs,M ＝n cs +(M-1)*offset 2 ；
wherein n is cs,M A value, n, representing the initial cyclic shift of the Mth PSFCH cs A value representing the initial cyclic shift of the first PSFCH, N cs Represents the number of values that can be taken in the value range of the initial cyclic shift, m represents the initial frequency domain position of the side chain information, K represents the maximum number of the side chain information received in a single time slot, and K is a positive integer, offset 2 Representing a third offset value.
9. A method of determining frequency domain resources for transmitting a PSFCH, comprising the steps of:
receiving side chain information and determining a starting frequency domain position for receiving the side chain information;
determining the Mth initial position of the frequency domain resource block of the Mth PSFCH for feeding back the side chain information according to the initial frequency domain position;
determining the number of frequency domain resource blocks of the Mth PSFCH;
determining the Mth frequency domain resource of the PSFCH according to the Mth starting position and the number of the frequency domain resource blocks of the Mth PSFCH so as to send the MPSFCH on the Mth frequency domain resource;
wherein M is a positive integer for representing the resource index of the PSFCH, and the side chain information is selected from: psch and PSCCH.
10. The method of claim 9, wherein sequentially determining, according to the starting frequency domain position, an mth starting position of a frequency domain resource block of an mth PSFCH used by an mth receiving UE for feeding back the side chain information, comprises:
determining the number N of values that can be taken in the range of values of the initial cyclic shift cs ；
Determining an index n of a starting resource block of the PSFCH PSFCHRBstart ；
Determining the maximum number K of the side chain information received in a single time slot;
determining a first offset value N subCH ；
Determining the Mth starting position by using the following formula:
Figure FDA0003715352640000041
wherein n is PRB,M Denotes the Mth starting position, n PSFCHRBstart Index, N, representing the PSFCH starting resource block cs Representing the number of values which can be taken in the value range of the initial cyclic shift, m representing the initial frequency domain position of the side chain information, K representing the maximum number of the side chain information received in a single time slot, wherein K is a positive integer, N is subCH Representing the first offset value.
11. The method for determining frequency domain resources for transmitting a PSFCH of claim 10, wherein the number of frequency domain resource blocks of the mth PSFCH is configured in a higher layer;
the number N of values that can be taken in the range of values of the initial cyclic shift cs Configured or predefined for higher layers;
determining an index n of a starting resource block of the PSFCH PSFCHRBstart Configured for a higher layer;
the maximum number K of the side chain information received in a single time slot is determined to be configured by a high layer or predefined;
the first offset value N subCH Configured for higher layers.
12. The method of claim 10, wherein if the sidechain information is the pscch, the maximum number K of sidechain information received in the single slot is the maximum number of resource units contained in the single slot.
13. The method of claim 10, wherein if the side chain information is a PSCCH, the maximum number K of side chain information received in the single time slot is the maximum number of times the PSCCH listens in the single time slot.
14. The method of claim 9, wherein sequentially determining, according to the starting frequency domain position, an mth starting position of a frequency domain resource block of an mth PSFCH used by an mth receiving UE for feeding back the side chain information, comprises:
determining a second offset value offset 1 ；
Determining the Mth starting position by using the following formula:
Figure FDA0003715352640000051
n PRB,M ＝n PRB +offset 1 ×(M-1)；
wherein n is PRB,M Denotes the Mth starting position, n PRB Denotes a first starting position, n PSFCHRBstart Index, N, representing the PSFCH starting resource block cs Represents the number of values that can be taken in the range of values of the initial cyclic shift, m represents the initial frequency domain position of the side chain information, K represents the maximum number of the side chain information received in a single time slot, and K is a positive integer, offset 1 Representing the second offset value.
15. The method of claim 9, wherein the initial cyclic shift of the mth PSFCH takes on the following values:
n cs,M ＝{K[m+N subCH ×(M-1)]}％N cs ；
wherein n is cs,M A value representing an initial cyclic shift of the Mth PSFCH, N cs Representing the number of values which can be taken in the value range of the initial cyclic shift, m representing the initial frequency domain position of the side chain information, K representing the maximum number of the side chain information received in a single time slot, wherein K is a positive integer, N subCH Representing a first offset value.
16. The method of claim 9, wherein the initial cyclic shift of the mth PSFCH takes on the following values:
n cs ＝(Km)％N cs ；
n cs,M ＝n cs +(M-1)*offset 2 ；
wherein n is cs,M A value, n, representing the initial cyclic shift of the Mth PSFCH cs A value representing the initial cyclic shift of the first PSFCH, N cs Representing the number of values that can be taken in the value range of the initial cyclic shift, m representing the initial frequency domain position of the side chain information, K representing the maximum number of the side chain information received in a single time slot, and K being a positive integer, offset 2 Representing a third offset value.
17. An apparatus for determining frequency domain resources for receiving a PSFCH, comprising:
the sending module is suitable for sending the side chain information and determining the starting frequency domain position for sending the side chain information;
a first starting position determining module, adapted to determine, according to the starting frequency domain position, an mth starting position of a frequency domain resource block of an mth PSFCH used by an mth receiving UE for feeding back the side chain information;
the first number determining module is suitable for determining the number of frequency domain resource blocks of the Mth PSFCH;
a first frequency domain resource determining module, adapted to determine an mth frequency domain resource of the PSFCH according to the mth starting position and the number of frequency domain resource blocks of the mth PSFCH, so as to receive the mth PSFCH on the mth frequency domain resource;
wherein, M is a positive integer used to represent the resource index of the PSFCH, and the side chain information is selected from: psch and PSCCH.
18. An apparatus for determining frequency domain resources for transmitting a PSFCH, comprising:
the receiving module is suitable for receiving the side chain information and determining a starting frequency domain position for receiving the side chain information;
a second starting position determining module, adapted to determine, according to the starting frequency domain position, an mth starting position of a frequency domain resource block of an mth PSFCH for feeding back the side chain information;
the second number determining module is suitable for determining the number of frequency domain resource blocks of the Mth PSFCH;
a second frequency-domain resource determining module, adapted to determine an mth frequency-domain resource of the PSFCH according to the mth starting location and the number of frequency-domain resource blocks of the mth PSFCH, so as to send the mth PSFCH on the mth frequency-domain resource;
wherein M is a positive integer for representing the resource index of the PSFCH, and the side chain information is selected from: psch and PSCCH.
19. A storage medium having stored thereon computer instructions which, when executed, perform the steps of the method of receiving frequency domain resources of a PSFCH of any of claims 1 to 8, or perform the steps of the method of transmitting frequency domain resources of a PSFCH of any of claims 9 to 16.
20. A transmitting UE comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor when executing the computer instructions performs the steps of the method of receiving frequency domain resources of a PSFCH of any of claims 1 to 8.
21. A receiving UE comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor executes the computer instructions to perform the steps of the method of transmitting frequency domain resources of a PSFCH of any of claims 9-16.
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