Communication methods and communication devices

Abstract

This application provides a communication method and a communication device. In the communication method, ports for transmitting SRS are divided into P groups, and SRS can be transmitted based on at least one comb offset in a first comb offset set corresponding to the p-th port group of the P ports. Different port groups can correspond to different comb offset sets. This allows ports in different port groups to hop at different CO steps. This reduces the probability of repetition with CO for ports of UEs that do not support CO hopping, thereby reducing interference during SRS transmission.

Description

[Technical Field]

[0001] This application claims priority to Chinese Patent Application No. 202310411270.0, titled "Communication Method and Communication Device," filed with the China National Intellectual Property Administration on April 7, 2023, and Chinese Patent Application No. 202311021417.1, also titled "Communication Method and Communication Device," filed with the China National Intellectual Property Administration on August 11, 2023, the contents of which are incorporated herein by reference.

[0002] Technical field This application relates to the field of communications, and more specifically, to a communication method and communication apparatus in the field of communications. [Background technology]

[0003] A sounding reference signal (SRS) is an uplink reference signal transmitted by a terminal device to a network device (e.g., a base station). The network device may perform channel estimation for an uplink (UL) channel based on the SRS, or it may perform channel estimation for a downlink (DL) channel based on channel reciprocity, thereby enabling the network device to perform uplink or downlink transmission with the terminal device.

[0004] To avoid interference that occurs when different terminal devices transmit SRS, the SRS sequences used by different terminal devices may have different cyclic shift (CS) values ​​for different base sequences, or different CS values ​​for the same base sequence. Interference occurs between acquired SRS sequences regardless of whether the same or different cyclic shift values ​​are used for different base sequences. Different CS values ​​for the same base sequence form different SRS sequences, and the difference between two different CS values ​​causes interference between different SRS sequences of the same base sequence. As a result, the performance of transmitting SRS is affected. [Overview of the Initiative] [Problems that the invention aims to solve]

[0005] Embodiments of the present invention provide a communication method and communication apparatus for reducing interference and improving the performance of transmitting SRS. [Means for solving the problem]

[0006] According to the first aspect, a communication method is provided, which includes: multiple ports for transmitting SRS, corresponding to one or more port groups; one port group corresponding to one comb offset set supporting hopping; the one or more port groups collectively corresponding to one or more comb offset sets.

[0007] In the aforementioned solution, the COs supporting port hopping may be different for ports within different port groups. This can reduce the probability of repetitions using COs occupied by UE ports that do not support CO hopping, thereby reducing interference during SRS transmission.

[0008] In one possible implementation, the first comb offset set φ corresponds to the p-th port group. pTransmit SRS based on at least one comb offset. N corresponding to the first SRS resource ap SRS The N ports corresponding to the first SRS resource are divided into P groups, and the P port groups corresponding to the first SRS resource include the p-th port group, where N ap SRS is a positive integer, p is a positive integer in the range from 1 to P, and the value of P is a positive integer greater than or equal to 1 and less than or equal to N ap SRS following.

[0009] In the above solution, the ports for transmitting SRS may be divided into P groups, and the SRS may be transmitted based on the first set of comb offsets φ corresponding to the p-th port group among the P port groups p among the at least one comb offset. Different port groups may correspond to different sets of comb offsets. In this way, the ports in different port groups can hop in different CO steps. This can reduce the probability of iteration using the CO of the ports of the UE that does not support CO hopping, reduce the interference during the transmission of SRS, and improve the performance of transmitting SRS.

[0010] Optionally, the first SRS resource corresponds to one or more of time domain resources, frequency domain resources, or code domain resources.

[0011] Optionally, the first set of comb offsets φ p is configured by the network device or can be specified in the protocol.

[0012] Optionally, transmitting SRS based on at least one comb offset within the first set of comb offsets corresponding to the p-th port group means that the first set of comb offsets φ corresponding to the p-th port group pThis includes transmitting an SRS based on one of the comb offsets, where the p-th port group corresponds to the said comb offset.

[0013] Optionally, the first comb offset set φ corresponding to the p-th port group. p Transmitting an SRS based on at least one comb offset within the first comb offset set φ corresponding to the pth port group p This includes transmitting SRS based on multiple comb offsets within a p-th port group, where multiple ports within the p-th port group correspond to the multiple comb offsets.

[0014] Optionally, a terminal device may transmit an SRS based on a comb offset corresponding to each port group and determined from a set of comb offsets corresponding to each of the P port groups.

[0015] Optionally, the P port groups may correspond to different sets of comb offsets or the same set of comb offsets. This is not limited to this embodiment of the application.

[0016] In one possible implementation, the first comb offset set φ corresponds to the p-th port group. p The comb offset spacing between any two adjacent comb offsets within the same area is equal.

[0017] Optionally, the first comb offset set φ p The first and last comb offsets included can also be considered adjacent comb offsets.

[0018] In one possible implementation, the first comb offset set φ corresponds to the p-th port group. pIt includes at least one comb offset subset, the comb offsets contained in each of the at least one comb offset subsets are contiguous, and the comb offset spacing between any two adjacent comb offset subsets of the at least one comb offset subset is equal. The comb offsets contained in the comb offset subset are contiguous, and the comb offset subsets are equally spaced. The last comb offset subset and the first comb offset subset can also be two adjacent comb offset subsets.

[0019] In one possible implementation, the first comb offset set φ corresponds to the p-th port group. p The comb offsets included are continuous.

[0020] Optionally, the first comb offset set φ p The difference between adjacent comb offsets included is 1.

[0021] In one possible implementation, the first comb offset set φ corresponds to the p-th port group. p This is the reference comb offset k of the p-th port group. TC,start p and obtained based on the comb offset step of the p-th port group, k TC,start p is a positive integer.

[0022] Optionally, the first comb offset set φ p ga n p If there are comb offsets, the p-th port group is n pThis corresponds to n comb offset steps. Optionally, a network device may constitute the comb offset steps, and a terminal device may determine the remaining comb offset steps based on some of the comb offset steps. For example, a network device may constitute the maximum value of the comb offset steps, and the comb offset steps may be consecutive. Therefore, the network device may determine the remaining comb offset steps based on the maximum value. p The number of comb offset steps can be determined. Optionally, n p The number of comb offset steps may be specified in the protocol.

[0023] In one possible implementation, the reference comb offset k of the p-th port group. TC,start p This is specified in the protocol or indicated by the network device.

[0024] In one possible implementation, the reference comb offset k of the p-th port group. TC,start p This is the total number of combs K composed of network devices. TC , N ap SRS , reference port comb offset ￣k TC [For convenience, k with a bar may be written as ￣k], maximum cyclic shift value n RS cs,max , or obtained based on at least one of the cyclic shift values ​​of the reference port in the p-th port group. TC is a positive integer greater than or equal to 1, and n SRS cs,max ￣k is a positive integer greater than or equal to 1. TC is 0 or greater than K TC It is a positive integer less than 1.

[0025] Optionally, the reference comb offset k of the p-th port group. TC,start pThis may be the comb offset determined by the terminal device when CO subset hopping is disabled.

[0026] In one possible implementation, the first comb offset set φ corresponds to the p-th port group. p The total number of combs is K. TC , the reference comb offset k of the p port group TC,start p , or n of the p-th port group p The first comb offset set φ is obtained based on at least one of the comb offset steps. p is, n p Includes individual comb offsets, n p The comb offset is n p Each comb offset step corresponds one-to-one, n p is K TC The following are positive integers:

[0027] In the above solution, the terminal device has a total comb count of K. TC , the reference comb offset k of the p port group TC,start p , or n of the p-th port group p Obtain at least one of the comb offset steps, and the total number of combs is K. TC , the reference comb offset k of the p port group TC,start p , or the comb offset step n of the p-th port group p Based on at least one of the first comb offset set φ p You may decide that.

[0028] The way to determine the comb offset set for each of the P port groups is to determine the first comb offset set φ for the p-th port group. p It is the same method used to determine [something].

[0029] In one possible implementation, the method further includes receiving first and second instruction information from a network device, wherein the first instruction information is the total comb number K. TC The second instruction information is n p This indicates.

[0030] Optionally, the terminal device may receive the first instruction information and the second instruction information simultaneously; or it may receive the first instruction information and the second instruction information separately, and the order in which the first instruction information and the second instruction information are received is not limited.

[0031] In one possible implementation, the first comb offset set φ corresponds to the p-th port group. p The following applies:

number

[0032] In one possible implementation, the first comb offset set φ corresponds to the p-th port group. p The following applies:

number

[0033] In one possible implementation, this method further... This includes receiving third instruction information from a network device, the third instruction information being a first comb offset set φ corresponding to the p-th port group. p but

Number

Number

[0034] In one possible implementation, transmitting the SRS based on the at least one comb offset in the first set of comb offsets φ corresponding to the p-th port group p comprises: generating a first value based on the total number n of comb offsets included in the first set of comb offsets φ, where the value range of the first value is [0, n the first set of comb offsets φ p and the total number n of comb offsets included in the first set of comb offsets φ p is -1), and determining a first comb offset corresponding to the first value from the first set of comb offsets φ, where the comb offset of each port in the p-th port group is the first comb offset, and one value in [0, n p -1] corresponds to one comb offset within the first set of comb offsets φ; the first set of comb offsets φ p and transmitting the SRS based on the first comb offset. p One value in -1] corresponds to one comb offset within the first set of comb offsets φ; p and transmitting the SRS based on the first comb offset. comprises: generating a first value based on the total number n of comb offsets included in the first set of comb offsets φ, where the value range of the first value is [0, n and includes.

[0035] In one possible implementation, the n-th p comb offset within the first set of comb offsets φ corresponding to the p-th port group p i corresponds to the n-th p i comb offset step, and the n-th p i comb offset step corresponds to the number n of comb offset steps pcorresponding to a second value generated based on [0, n p -1].

[0036] In one possible implementation, the n p i th comb offset step k COH,i p is (-1) b f(n SRS ), where f(n SRS ) is the second value and the value of b is 0 or 1.

[0037] In one possible implementation, transmitting SRS based on at least one of the comb offsets within a first set of comb offsets φ corresponding to a pth port group p comprises: determining a first comb offset of the pth port group based on at least one of the n p th comb offset step k p i within the first set of comb offsets φ, a reference comb offset k COH,i p of the pth port group, or the total number of combs K TC,start p ; TC determining a start position in the frequency domain to which the pth port group is mapped based on the first comb offset and a frequency domain resource offset; and transmitting SRS based on the start position in the frequency domain to which the pth port group is mapped.

[0038] In one possible implementation, the reference comb offset k TC,start p of the pth port group is the total number of combs K TC configured by a network device, N ap SRS a comb offset of a reference port - k TC and the maximum cyclic shift value n RS ​​CS,max , or k obtained based on at least one of the cyclic shift values ​​of the reference port in the p-th port group. TC p The first comb offset set φ p The nth within p i Comb offset step k COH,i p , the reference comb offset k of the p port group TC,start p , or total number of combs K TC Based on at least one of the following, the first comb offset of the p-th port group can be determined: The first comb offset of the p-th port group is

number

number

[0039] In one possible implementation, the reference comb offset k of the p-th port group. TC,start p This is specified in the protocol or indicated by the network device, and is the first comb offset set φ p The nth p i Comb offset step k COH,i p, the reference comb offset k of the p port group TC,start p , or total number of combs K TC Determining the first comb offset of the p-th port group based on at least one of the following is: The first comb offset of the p-th port group is

number

number

[0040] In one possible implementation, the p-th port group is m p The first comb offset set φ includes the number of ports. p m inside pEach comb offset of a port is associated with an index of the cyclic shift group to which the cyclic shift value corresponding to that port belongs, and the first SRS resource corresponds to T groups of cyclic shift values, and T groups of cyclic shift values ​​correspond to T cyclic shift group indices, where T is a positive integer.

[0041] In one possible implementation, the first comb offset set φ p m inside p Of the ports, the m p j Port comb offset n p j is, k TC P or the mth p j It is obtained based on at least one index of the cyclic shift group to which the cyclic shift value corresponding to the port belongs.

[0042] In one possible implementation, the p-th port group is m p Includes the number of ports. During one SRS transmission, the first comb offset set φ p m inside p Each of the comb offsets of a port is associated with a cyclic shift value corresponding to that port; the first SRS resource corresponds to T cyclic shift values.

[0043] In one possible implementation, during a single SRS transmission, the first comb offset set φ p m inside p Of the ports, the m p j Port comb offset n p j However, k TC p and / or the mth p j Obtained based on the cyclic shift value corresponding to the port, Here, k TC p This is the total number of combs K composed of network devices. TC, N ap SRS , reference port comb offset ￣k TC , maximum cyclic shift value n RS CS,max , or obtained based on at least one of the cyclic shift values ​​of the reference port in the p-th port group.

[0044] In one possible implementation, the first comb offset set φ p m inside p Of the ports, the m p j Port comb offset n p j However, k TC p , mth p j It is obtained based on the cyclic shift value corresponding to the port, and T.

[0045] In one possible implementation, m p The mth of the individual ports p j The nth port p j Corresponding to the comb offset step, the nth p j The comb offset step is the number of comb offset steps n p This corresponds to a third value generated based on the above, and the range of the third value is [0, n p -1]

[0046] In one possible implementation, the nth p j Comb offset step k COH,j p teeth

number

[0047] In one possible implementation, the nth p j Comb offset step k COH,j p is, (-1) b [f(n SRS )+T j ] and here, T j is the m p j This is the index of the cyclic shift group to which the cyclic shift value corresponding to the port belongs, T j The value of is a positive integer in the range of 0 to T-1.

[0048] In one possible implementation, the first comb offset set φ corresponds to the p-th port group. p Transmitting an SRS based on the aforementioned at least one comb offset within the m p j The nth port corresponding to the port p j Comb offset step k COH,j p , mth p j Port reference comb offset k TC,start p , or total number of combs K TC Based on at least one of the following, the m p j The step of determining the comb offset of the port; mth p j Based on the port comb offset and frequency domain resource offset, the m p j The step of determining the starting position of the frequency domain where the port is mapped; mth p j The step includes transmitting an SRS based on the frequency domain start position where the port is mapped, where m pj is 1 to mp It is a positive integer within the range of .

[0049] In one possible implementation, the reference comb offset k of the p-th port group. TC,start p This is the total number of combs K composed of network devices. TC , N ap SRS , reference port comb offset ￣k TC , maximum cyclic shift value n RS CS,max , or the cyclic shift value k of the reference port in the p-th port group. TC p Obtained based on at least one of the following, the m p j The nth port corresponding to the port p j Comb offset step k COH,j p , mth p j Port reference comb offset k TC,start p , or total number of combs K TC Based on at least one of the following, the m p j Determining the comb offset of the port is: mth p j The comb offset of the port is

number

number

[0050] In one possible implementation, the reference comb offset k of the p-th port group. TC,start p This is specified in the protocol or indicated by the network device, and is the m p j The nth port corresponding to the port p j Comb offset step k COH,j p , mth p j Port reference comb offset k TC,start p , or total number of combs k TC p Based on at least one of the following, the m p j Determining the comb offset of the port is: mth p j The comb offset of the port is

number

number

[0051] In one possible implementation, the value of b is specified by the protocol or indicated by the network device.

[0052] In one possible implementation,

number

number

[0053] In one possible implementation, the first comb offset set φ p This is obtained based on a second comb offset set that cannot be used to transmit SRS over the first SRS resource.

[0054] In one possible implementation, P port groups correspond to N first SRS resources. ap SRS It is obtained based on the number of individual ports and port groups P.

[0055] In one possible implementation, the interval between port indices of neighboring ports in each of the P port groups is N. ap SRSIt is / P.

[0056] In one possible implementation, the first comb offset set φ p This corresponds to the initial comb offset value of the p-th port group and the first set of comb offset bias values.

[0057] In one possible implementation, the first comb offset bias value set is L g,1 Including a series of consecutive cyclic shift biases, Here, L g,1 The total number of combs is 1 or more and K. TC The following applies:

[0058] In one possible implementation, L g,1 Instructional information indicating this is received from a network device.

[0059] In one possible implementation, the first comb offset bias value set is {0, 1 mod K} TC , … ,(L g,1 -1)mod K TC} is; or The first comb offset bias value set is {0, -1 mod K}. TC , … ,(-L g,1 +1)mod K TC}. Here, mod(·) is the modulo operation.

[0060] In one possible implementation, the frequency domain start position to which the p-th port group is mapped is

number

[0061] In one possible implementation, the first set of comb offset bias values ​​includes at least one subset of comb offset bias values, where the comb offset bias values ​​contained in each of these subsets are contiguous.

[0062] In one possible implementation, the comb offset bias value interval between any two adjacent comb offset bias value subsets of the at least one comb offset bias value subset is equal.

[0063] In one possible implementation, all of the aforementioned subsets of comb offset bias values ​​contain an equal number of comb offset bias values.

[0064] In one possible implementation, the number of the at least one comb offset bias value subset is G, and the g-th comb offset bias value subset of the G comb offset bias value subsets is {Δ g mod K TC , (Δ g +1) mod K TC …, (Δ g +L g -1) mod K TC}or {-Δ g mod K TC , (-Δ g-1) mod K TC …, (-Δ g -L g +1) mod K TC} and Here, Δ0 = 0, Δ g =Δ"·g, where g=0,1,…,G-1, and Δ" is the comb offset bias value interval between any two adjacent comb offset bias value subsets, K TC This is the total number of combs, L g This is the number of comb offset bias values ​​included in the g-th comb offset bias value subset,

number

[0065] In one possible implementation, K TC =Δ"·G.

[0066] In one possible implementation, G is on the same cyclic shift as N. ap SRS The number of ports out of a given number of ports, or G is N ap SRS This is the number of different comb offsets occupied by each port.

[0067] In one possible implementation, the frequency domain start position to which the p-th port group is mapped is:

number

number

[0068] In one possible implementation,

number

[0069] In one possible implementation, the frequency domain start position to which p port groups are mapped is

number

number

[0070] According to the second aspect, a communication method is provided, and a first comb offset set φ corresponding to the p-th port group is provided. p The step includes receiving an SRS based on at least one comb offset within, where N corresponds to a first SRS resource. ap SRSThe number of ports is divided into P groups, and the P port groups corresponding to the first SRS resource include the p port group, N ap SRS n is a positive integer, p is a positive integer in the range from 1 to P, and the value of P is 1 or greater than or equal to N. ap SRS The following are positive integers:

[0071] In one possible implementation, the first comb offset set φ corresponds to the p-th port group. p The comb offset spacing between any two adjacent comb offsets within the same area is equal.

[0072] In one possible implementation, the first comb offset set φ corresponds to the p-th port group. p It includes at least one comb offset subset, the comb offsets contained in each of the at least one comb offset subsets are contiguous, and the comb offset spacing between any two adjacent comb offset subsets of the at least one comb offset subset is equal.

[0073] In one possible implementation, the first comb offset set φ corresponds to the p-th port group. p The comb offsets included are continuous.

[0074] In one possible implementation, the first comb offset set φ corresponds to the p-th port group. p This is the reference comb offset k of the p-th port group. TC,start p and obtained based on the comb offset step of the p-th port group, k TC,start p is a positive integer.

[0075] In one possible implementation, the reference comb offset k of the p-th port group. TC,start pThis is specified in the protocol, or the network device is the reference comb offset k of the pth port group. TC,start p You may also indicate this.

[0076] In one possible implementation, the reference comb offset k of the p-th port group. TC,start p The total number of combs is K. TC , N ap SRS , reference port comb offset ￣k TC , maximum cyclic shift value n RS CS,max , or obtained based on at least one of the cyclic shift values ​​of the reference port in the p-th port group, K TC is a positive integer greater than or equal to 1, and n RS CS,max ￣k is a positive integer greater than or equal to 1. TC is a positive integer greater than or equal to 0.

[0077] In one possible implementation, the first comb offset set φ corresponds to the p-th port group. p The total number of combs is K. TC , the reference comb offset k of the p port group TC,start p , or n of the p-th port group p The first comb offset set φ is obtained based on at least one of the comb offset steps. p is n p Includes individual comb offsets, n p The comb offset is n p Each comb offset step corresponds one-to-one, n p is K TC The following are positive integers:

[0078] In one possible implementation, the method further includes transmitting a first instruction and a second instruction, the first instruction being the total number of combs K. TC The second instruction information is n p This indicates.

[0079] In one possible implementation, the first comb offset set φ corresponds to the p-th port group. p It will be as follows:

number

[0080] In one possible implementation, the method further includes transmitting a third instruction information, the third instruction information being a first comb offset set φ corresponding to the p-th port group. p but

number

number

[0081] In one possible embodiment, the first comb offset set φ corresponds to the p-th port group. p Receiving an SRS based on the aforementioned at least one comb offset within: First comb offset set φ p The total number of comb offsets included n p This is the step of generating a first value based on the above, where the range of the first value is [0, n p -1] is the stage and; the first comb offset set φ p A step in which a first comb offset corresponding to a first value is determined from [0,n], wherein the comb offset of each port in the p-th port group is the first comb offset, and [0,n] p One value in -1 is the first comb offset set φp The process includes a step corresponding to one of the comb offsets within the system, and a step of receiving an SRS based on the first comb offset.

[0082] In one possible implementation, the first comb offset set φ corresponds to the p-th port group. p The nth within p i The comb offset is the nth p i Corresponding to the comb offset step, the nth p i The comb offset step is the number of comb offset steps n p This corresponds to a second value generated based on [0, n], and the range of the second value is [0, n]. p -1]

[0083] In one possible implementation, the nth p i Comb offset step k COH,i p (-1) b f(n SRS ) and f(n SRS ) is the second value, and the value of b is 0 or 1.

[0084] In one possible implementation, the first comb offset set φ corresponds to the p-th port group. p Receiving an SRS based on the aforementioned at least one comb offset within the first comb offset set φ p The first comb offset step k COH,i p , the reference comb offset k of the p port group TC,start p , or total number of combs K TCThe process includes: determining a first comb offset of the p-th port group based on at least one of the following; determining a frequency domain start position to which the p-th port group is mapped based on the first comb offset and the frequency domain resource offset; and receiving an SRS based on the frequency domain start position to which the p-th port group is mapped.

[0085] In one possible implementation, the reference comb offset k of the p-th port group. TC,start p The total number of combs is K. TC , N ap SRS , reference port comb offset ￣k TC , maximum cyclic shift value n RS cs,max , or k obtained based on at least one of the cyclic shift values ​​of the reference port in the p-th port group. TC p and; the first comb offset set φ p The nth p i Comb offset step k COH,i p , the reference comb offset k of the p port group TC,start p , or total number of combs K TC Determining the first comb offset of the p-th port group based on at least one of the following means that the first comb offset of the p-th port group is

number

number

[0086] In one possible implementation, the reference comb offset k of the p-th port group. TC,start p This is specified in the protocol or indicated by the network device, and is the first comb offset set φ p The nth p i Comb offset step k COH,i p , the reference comb offset k of the p port group TC,start p , or total number of combs K TC Based on at least one of the following, the first comb offset of the p-th port group can be determined: The first comb offset of the p-th port group is

number

number

[0087] In one possible implementation, the p-th port group is m p The first comb offset set φ includes the number of ports. p m inside p Each of the port's comb offsets is associated with an index of the cyclic shift group to which the cyclic shift value corresponding to the port belongs, and the first SRS resource corresponds to T groups of cyclic shift values, and the T groups of cyclic shift values ​​correspond to T cyclic shift group indices, where T is a positive integer.

[0088] In one possible implementation, the first comb offset set φ p m inside p The mth of the individual ports p j Port comb offset n p j is the m p j The index or k of the cyclic shift group to which the cyclic shift value corresponding to the port belongs. TC P It is obtained based on at least one of the following.

[0089] In one possible implementation, the p-th port group is m p The first comb offset set φ includes the number of ports. p m inside p Each of the individual ports' comb offsets is associated with a cyclic shift value corresponding to that port, and the first SRS resource corresponds to T cyclic shift values.

[0090] In one possible implementation, the first comb offset set φ p m inside p The mth of the individual ports p jPort comb offset n p j is the m p j The cyclic shift value and / or k corresponding to the port. TC p Obtained based on, where k TC p This is the total number of combs K composed of network devices. TC , N ap SRS , reference port comb offset ￣k TC , maximum cyclic shift value n RS cs,max , or obtained based on at least one of the cyclic shift values ​​of the reference port in the p-th port group.

[0091] In one possible implementation, the first comb offset set φ p m inside p The mth of the individual ports p j Port comb offset n p j is, k TC p , mth p j It is obtained based on the cyclic shift value corresponding to the port, and T.

[0092] In one possible implementation, m p The mth of the individual ports p j The port is the nth p j Corresponding to the comb offset step, the nth p j The comb offset step is the number of comb offset steps n p This corresponds to a third value generated based on [0, n], and the range of the third value is [0, n]. p -1]

[0093] In one possible implementation, the nth p j Comb offset step k COH,j pteeth,

number

[0094] In one possible implementation, the nth p j Comb offset step k COH,j p is, (-1) b [f(n SRS )+T j ] and T j is the m p j This is the index of the cyclic shift group to which the cyclic shift value corresponding to the port belongs, T j The value of is a positive integer in the range of 0 to T-1.

[0095] In one possible implementation, the first comb offset set φ corresponds to the p-th port group. p Receiving the SRS based on the aforementioned at least one comb offset within the m p j The nth port corresponding to the port p j Comb offset step k COH,j p , mth p j Port reference comb offset k TC,start p , or total number of combs K TC Based on at least one of the following, the m p j The step of determining the comb offset of the port; mth p jBased on the port comb offset and frequency domain resource offset, the m p j The step of determining the starting position of the frequency domain where the port is mapped; mth p j The step of receiving the SRS based on the frequency domain start position where the port is mapped, m p j is 1~m p The steps are positive integers within the range of x.

[0096] In one possible implementation, the reference comb offset k of the p-th port group. TC,start p This is the total number of combs K composed of network devices. TC , N ap SRS , reference port comb offset ￣k TC , maximum cyclic shift value n RS cs,max , or the cyclic shift value k of the reference port in the p-th port group. TC p Obtained based on at least one of the following, the m p j The nth port corresponding to the port p j Comb offset step k COH,j p , mth p j Port reference comb offset k TC,start p , or total number of combs K TC Based on at least one of the following, the m p j Determining the comb offset of the port is: p j The comb offset of the port is

number

number

[0097] In one possible implementation, the reference comb offset k of the p-th port group. TC,start p This is specified in the protocol or indicated by the network device, and is the m p j The nth port corresponding to the port p j Comb offset step k COH,j p , mth p j Port reference comb offset k TC,start p , or total number of combs K TC Based on at least one of the following, the m p j Determining the comb offset of the port is: The comb offset of the port of the first MPJ is

number

number

[0098] In one possible implementation, the value of b is specified in the protocol or indicated by the network device.

[0099] In one possible implementation,

number

number

[0100] In one possible implementation, the first comb offset set φ p This is obtained based on a second comb offset set that cannot be used to transmit SRS over the first SRS resource.

[0101] In one possible implementation, a group of P ports corresponds to N of the first SRS resources. ap SRSIt is obtained based on the number of individual ports and port groups P.

[0102] In one possible implementation, the interval between port indices of neighboring ports in each of the P port groups is N. ap SRS It is / P.

[0103] In one possible implementation, the first comb offset set φ p This corresponds to the initial comb offset value of the p-th port group and the first set of comb offset bias values.

[0104] In one possible implementation, the first comb offset bias value set is L g,1 Including a series of consecutive cyclic shift biases, Here, L g,1 The total number of combs is 1 or more and K. TC The following applies:

[0105] In one possible implementation, L g,1 Instructional information indicating this is sent.

[0106] In one possible implementation, the first comb offset bias value set is {0, 1 mod K} TC , … ,(L g,1 -1) mod K TC} is; or the first comb offset bias value set is {0, -1 mod K}. TC , … ,(-L g,1 +1) mod K TC}. Here, mod(·) is the modulo operation.

[0107] In one possible implementation, the frequency domain start position to which the p-th port group is mapped is

number

[0108] In one possible implementation, the first set of comb offset bias values ​​includes at least one subset of comb offset bias values, where the comb offset bias values ​​contained in each of these subsets are contiguous.

[0109] In one possible implementation, the comb offset bias value interval between any two adjacent comb offset bias value subsets of the at least one comb offset bias value subset is equal.

[0110] In one possible implementation, all of the aforementioned subsets of comb offset bias values ​​contain an equal number of comb offset bias values.

[0111] In one possible implementation, the number of the at least one comb offset bias value subset is G, and the g-th comb offset bias value subset of the G comb offset bias value subsets is {Δ g mod K TC , (Δ g +1) mod K TC …, (Δg +L g -1) mod K TC}or {-Δ g mod K TC , (-Δ g -1) mod K TC …, (-Δ g -L g +1) mod K TC} and Here, Δ0 = 0, Δ g =Δ"·g, where g=0,1,…,G-1, and Δ" is the comb offset bias value interval between any two adjacent comb offset bias value subsets, K TC This is the total number of combs, L g This is the number of comb offset bias values ​​included in the g-th comb offset bias value subset,

number

[0112] In one possible implementation, K TC =Δ"·G.

[0113] In one possible implementation, G is on the same cyclic shift as N. ap SRS The number of ports is the number of ports, or G is N ap SRS This is the number of different comb offsets occupied by the port.

[0114] In one possible implementation, the frequency domain start position to which the p-th port group is mapped is:

number

number

[0115] In one possible implementation,

number

[0116] In one possible implementation, the frequency domain start position to which p port groups are mapped is

number

number

[0117] According to the third aspect, a communication method is provided, and from a set of Q cyclic shift values, N corresponding to the first SRS resource ap SRS The step of determining the cyclic shift value for each of the individual ports, Nap SRS Q is a positive integer, and Q is greater than 1 and N ap SRS The following are positive integers, for each level; N ap SRS This includes the step of sending an SRS based on the cyclic shift value of each individual port.

[0118] In the above solution, there are Q sets of cyclic shift values, and n other than the Q sets of cyclic shift values. SRS cs,max The cyclic shift in may be a CS that does not support CS hopping. Therefore, N corresponding to the first SRS resource ap SRS The cyclic shift value for each port is determined from a set of Q cyclic shift values, thereby avoiding overlap with CSs that do not support CS hopping and reducing interference. ap SRS Each port may correspond to Q sets of cyclic shift values, and each set of CS in the Q sets of cyclic shift values ​​does not include CS for ports of UEs that do not support CS hopping. In this way, when a CS for hopping is selected from the Q sets of cyclic shift values ​​for a port that a terminal device uses to transmit SRS, CS that do not support CS hopping are not selected, thus reducing interference.

[0119] In one possible implementation, the cyclic shift values ​​in any two of the Q sets of cyclic shift values ​​are not consecutive, while the cyclic shift values ​​in each of the Q sets of cyclic shift values ​​are consecutive.

[0120] In one possible implementation, this method further... The process includes receiving a fourth instruction from a network device, the fourth instruction indicating that L1 is the number of cyclic shift values ​​in each of the Q sets of cyclic shift values, where L1 is 1 or greater and the maximum cyclic shift value is n. RS cs,max The following are positive integers and n SRS cs,max is a positive integer greater than 1.

[0121] In one possible implementation, the q-th set of cyclic shift values ​​in a set of Q cyclic shift values ​​is the starting cyclic shift value n CS start , the cyclic shift value interval Δ between any two adjacent sets of cyclic shift values, the number of cyclic shift values ​​L1 in the q-th set of cyclic shift values, or the maximum cyclic shift value n RS cs,max It is obtained based on at least one of the following. Here, the cyclic shift value interval between any two adjacent sets of cyclic shift values ​​is Δ, where Δ is between 1 and n. RS cs,max It is less than , and q is a positive integer in the range of 1 to Q.

[0122] In one possible implementation, the set of cyclic shift values ​​for the qth is as follows:

number

[0123] In one possible implementation, the cyclic shift value interval Δ between any two adjacent sets of cyclic shift values ​​is given by the maximum cyclic shift value n. SRS cs,max This relates to the number Q in the set of cyclic shift values.

[0124] In one possible implementation, conductor=n SRS cs,max It is / Q.

[0125] In one possible implementation, N ap SRS The cyclic shift value of the i-th port of this port is α i And,

number

[0126] In one possible implementation, a set of Q cyclic shift values ​​corresponds to a subset of Q cyclic shift bias values.

[0127] In one possible implementation, a first set of cyclic shift bias values ​​containing Q subsets of cyclic shift bias values ​​contains Y consecutive cyclic shift biases, Y1 is greater than or equal to 1 and has the maximum cyclic shift value n. RS cs,max The following applies:

[0128] In one possible implementation, instruction information indicating Y1 is received from a network device.

[0129] In one possible implementation, the first cyclic shift bias value set is {0, 1 mod n} SRS CS,max ,…,(Y1-1) mod n SRS CS,max} is; or The first set of cyclic shift bias values ​​is {0, -1 mod n}. SRS CS,max ,…,(-Y1+1) mod n SRS CS,max} and mod(·) is the modulo operation.

[0130] In one possible implementation, N ap SRS The cyclic shift value of the i-th port among these ports is α i And,

number

[0131] In one possible implementation, the cyclic shift biases contained in each of the Q subsets of cyclic shift bias values ​​are contiguous.

[0132] In one possible implementation, the cyclic shift-bias interval between any two adjacent cyclic shift-bias value subsets of Q cyclic shift-bias value subsets is equal.

[0133] In one possible implementation, all Q subsets of cyclic shift bias values ​​contain an equal number of cyclic shift bias values.

[0134] In one possible implementation, the number of Q cyclic shift-bias value subsets is Q, and the q-th cyclic shift-bias value subset of the Q cyclic shift-bias value subsets is {Δ q mod n SRS CS,max , (Δ q +1) mod n SRS CS,max …, (Δ q +S q -1) mod n SRS CS,max}or {-Δ q mod n SRS CS,max , (-Δ q -1) mod n SRS CS,max …, (-Δ q -S q +1) mod n SRS CS,max} and Here, Δ0 = 0, Δ q=Δ'·q, where q=0,1,…,Q-1, and Δ' is the cyclic shift-bias interval between any two adjacent cyclic shift-bias value subsets, n SRS CS,max This is the maximum cyclic shift value, S q This is the number of cyclic shift bias values ​​included in the q-th cyclic shift bias value subset,

number

[0135] In one possible implementation, n SRS cs,max =Δ'·Q.

[0136] In one possible implementation, Q is N on the same comb offset. ap SRS Q is the number of ports in a given port, or Q is N ap SRS Q is the number of different cyclic shifts occupied by a given port, or Q is the total number of ports corresponding to the first SRS resource. ap SRS is, or

number

[0137] In one possible implementation, N ap SRS The cyclic shift value of the i-th port of this port is α i And,

number

number

[0138] In one possible implementation,

number

[0139] In one possible implementation, N ap SRS The cyclic shift value of the i-th port of this port is α i And,

number

[0140] According to the fourth aspect, a communication method is provided, and from a set of Q cyclic shift values, N corresponding to the first SRS resource ap SRS The step of determining the cyclic shift value for each of the individual ports, N ap SRS Q is a positive integer, and Q is greater than 1 and N ap RS The following are positive integers, for each level; N ap SRS This includes the step of receiving SRS based on the cyclic shift value of each individual port.

[0141] In one possible implementation, cyclic shift values ​​in any two of the Q sets of cyclic shift values ​​are not consecutive, while cyclic shift values ​​in the Q sets of cyclic shift values ​​are consecutive.

[0142] In a possible implementation, the method further includes a step of transmitting fourth indication information, where the fourth indication information indicates that the number of cyclic shift values included in each of the Q sets of cyclic shift values is L1, and L1 is an integer greater than or equal to 1 and the maximum cyclic shift value n RS cs,max is the following positive integer, and n RS cs,max is a positive integer greater than 1.

[0143] In a possible implementation, the q-th set of cyclic shift values among the Q sets of cyclic shift values is based on the starting cyclic shift value n CS start , the cyclic shift value interval Δ between any two adjacent sets of cyclic shift values, the number L1 of cyclic shift values included in the q-th set of cyclic shift values, or the maximum cyclic shift value n RS cs,max and is obtained based on at least one of them. Here, the cyclic shift value interval between any two adjacent sets of cyclic shift values is Δ, and Δ is an integer greater than or equal to 1 and less than n RS cs,max , and q is a positive integer in the range of 1 to Q.

[0144] In a possible implementation, the q-th set of cyclic shift values is as follows.

Number

[0145] In a possible implementation, the cyclic shift value interval Δ between any two adjacent sets of cyclic shift values is related to the maximum cyclic shift value n SRS cs,max and the number Q of sets of cyclic shift values.

[0146] In a possible implementation, Δ = n SRS cs,max / Q.

[0147] In a possible implementation, for the i-th port among the N ap SRS ports, the cyclic shift value is α iand

Number

[0148] In one possible implementation, the Q sets of circular shift values correspond to Q subsets of circular shift bias values.

[0149] In one possible implementation, the first set of circular shift bias values including Q subsets of circular shift bias values includes Y1 consecutive circular shift biases, Y1 is greater than or equal to 1 and less than or equal to the maximum circular shift value n RS cs,max as follows.

[0150] In one possible implementation, indication information indicating Y1 is received from a network device.

[0151] In one possible implementation, the first set of circular shift bias values is {0, 1 mod n SRS CS,max ,…,(Y1 - 1) mod n SRS CS,max}; or the first set of circular shift bias values is {0, -1 mod n SRS CS,max ,…,(-Y1 + 1) mod n SRS CS,max}; and mod(·) is a modulo operation.

[0152] In one possible implementation, N ap SRS the circular shift value of the i-th port among the N i ports is α

Number

[0153] In one possible implementation, the cyclic shift biases contained in each of the Q subsets of cyclic shift bias values ​​are contiguous.

[0154] In one possible implementation, the cyclic shift-bias interval between any two adjacent cyclic shift-bias value subsets of Q cyclic shift-bias value subsets is equal.

[0155] In one possible implementation, all Q subsets of cyclic shift bias values ​​contain an equal number of cyclic shift bias values.

[0156] In one possible implementation, the number of Q cyclic shift-bias value subsets is Q, and the q-th cyclic shift-bias value subset of the Q cyclic shift-bias value subsets is {Δ q mod n SRS CS,max , (Δ q +1) mod n SRS CS,max …, (Δ q +S q -1) mod n SRS CS,max}or {-Δ q mod n SRS CS,max , (-Δ q -1) mod nSRS CS,max …, (-Δ q -S q +1) mod n SRS CS,max} and Here, Δ0 = 0, Δ q =Δ'·q, where q=0,1,…,Q-1, and Δ' is the cyclic shift-bias interval between any two adjacent cyclic shift-bias value subsets, n SRS CS,max This is the maximum cyclic shift value, S q This is the number of cyclic shift bias values ​​included in the q-th cyclic shift bias value subset,

number

[0157] In one possible implementation, n SRS cs,max =Δ'·Q.

[0158] In one possible implementation, Q is N on the same comb offset. ap SRS Q is the number of ports in a given port, or Q is N ap SRS Q is the number of different cyclic shifts occupied by a given port, or Q is the total number of ports corresponding to the first SRS resource. ap SRS is, or

number

[0159] In one possible implementation, N ap SRS The cyclic shift value of the i-th port of this port is α i And,

number

[0160] In a possible implementation, [Number]

[0161] In a possible implementation, N ap SRS The cyclic shift value of the i-th port of the N i ports is α [Number] where n SRS CS,i is the initial cyclic shift value of the i-th port, f(n SRS ) is a random function, mod(·) is a modulo operation, and n SRS cs,offset is the first cyclic shift bias value.

[0162] According to a fifth aspect, a communication method is provided, including the step of transmitting SRS based on the initial come-offset value of the i-th port among the N ap SRS ports corresponding to the first SRS resource and the first come-offset bias value set of the i-th port within the first come-offset bias value set, where i is a positive integer from 1 to N ap SRS .

[0163] In a possible implementation, the first come-offset bias value set includes L g,1 consecutive cyclic shift biases, L g,1is 1 or more and total comb count K TC The following applies:

[0164] In one possible implementation, L g,1 Instructional information indicating this is received from a network device.

[0165] In one possible implementation, the first comb offset bias value set is {0, 1 mod K} TC , … ,(L g,1 -1)mod K TC} is; or The first comb offset bias value set is {0, -1 mod K}. TC , … ,(-L g,1 +1) mod K TC}. Here, mod(·) is the modulo operation.

[0166] In one possible implementation, N ap SRS The frequency domain start position to which the i-th port of a given port is mapped is:

number

[0167] In one possible implementation, the first set of comb offset bias values ​​includes at least one subset of comb offset bias values, and the comb offset bias values ​​included in each of the at least one subset of comb offset bias values ​​are continuous.

[0168] In one possible implementation, the comb offset bias value interval between any two adjacent comb offset bias value subsets of the at least one comb offset bias value subset is equal.

[0169] In one possible implementation, all of the aforementioned subsets of at least one comb offset bias value contain an equal number of comb offset bias values.

[0170] In one possible implementation, the number of the at least one comb offset bias value subset is G, and the g-th comb offset bias value subset of the G comb offset bias value subsets is {Δ g mod K TC , (Δ g +1) mod K TC …, (Δ g +L g -1) mod K TC}or {-Δ g mod K TC , (-Δ g -1) mod K TC …, (-Δ g -L g +1) mod K TC} and Here, Δ0 = 0, Δ g =Δ"·g, where g=0,1,…,G-1, and Δ" is the comb offset bias value interval between any two adjacent comb offset bias value subsets, K TC This is the total number of combs, L g This is the number of comb offset bias values ​​included in the g-th comb offset bias value subset,

number

[0171] In one possible implementation, K TC =Δ"·G.

[0172] In one possible implementation, G is on the same cyclic shift as N. ap SRS The number of ports is the number of ports, or G is N ap SRS This is the number of different comb offsets occupied by each port.

[0173] In one possible implementation, N ap SRS The frequency domain start position to which the i-th port of this port is mapped is

number

number

[0174] In one possible implementation,

number

[0175] In one possible implementation, N ap SRS The frequency domain start position to which the i-th port of this port is mapped is

number

number

[0176] According to the sixth aspect, a communication method is provided, corresponding to N of the first SRS resource. ap SRS The process includes receiving an SRS based on the initial comb offset value of the i-th port of a given port and the first comb offset bias value set of the i-th port within the first comb offset bias value set, where i is from 1 to N. ap SRS It is a positive integer within the range of .

[0177] In one possible implementation, the first comb offset bias value set is L g,1 Including a series of consecutive cyclic shift biases, L g,1 It is 1 or greater, and the total number of combs is K. TC The following applies:

[0178] In one possible implementation, L g,1 Instructional information indicating this is sent.

[0179] In one possible implementation, the first comb offset bias value set is {0, 1 mod K} TC , … ,(L g,1 -1) mod K TC} is; or The first comb offset bias value set is {0, -1 mod K}. TC , … ,(-L g,1 +1) mod K TC}. Here, mod(·) is the modulo operation.

[0180] In one possible implementation, N ap SRS The frequency domain start position to which the i-th port of a given port is mapped is:

number

[0181] In one possible implementation, the first set of comb offset bias values ​​includes at least one subset of comb offset bias values, and the comb offset bias values ​​included in each of the at least one subset of comb offset bias values ​​are continuous.

[0182] In one possible implementation, the comb offset bias value interval between any two adjacent comb offset bias value subsets of the at least one comb offset bias value subset is equal.

[0183] In one possible implementation, all of the aforementioned subsets of at least one comb offset bias value contain an equal number of comb offset bias values.

[0184] In one possible implementation, the number of the at least one comb offset bias value subset is G, and the g-th comb offset bias value subset of the G comb offset bias value subsets is {Δ g mod K TC , (Δ g +1) mod K TC …, (Δ g +L g -1) mod K TC}or {-Δ g mod K TC , (-Δ g -1) mod K TC …, (-Δ g -L g +1) mod K TC} and Here, Δ0 = 0, Δ g =Δ"·g, where g=0,1,…,G-1, and Δ" is the comb offset bias value interval between any two adjacent comb offset bias value subsets, K TC This is the total number of combs, L g This is the number of comb offset bias values ​​included in the g-th comb offset bias value subset,

number

[0185] In one possible implementation, K TC =Δ"·G.

[0186] In one possible implementation, G is on the same cyclic shift as N. ap SRS The number of ports is the number of ports, or G is N ap SRS This is the number of different comb offsets occupied by each port.

[0187] In one possible implementation, N ap SRS The frequency domain start position to which the i-th port of this port is mapped is

number

number

[0188] In one possible implementation,

number

[0189] In one possible implementation, N ap SRS The frequency domain start position to which the i-th port of this port is mapped is

number

number

[0190] According to the seventh aspect, a communication method is provided, corresponding to N of the first SRS resources. ap SRS The process includes transmitting an SRS based on the initial cyclic shift value of the i-th port and the first set of cyclic shift bias values ​​for the i-th port within the first set of cyclic shift bias values, where i is from 1 to N. ap SRS It is a positive integer within the range of .

[0191] In one possible implementation, the first set of cyclic shift bias values ​​includes Y1 consecutive cyclic shift biases, Y1 is the maximum cyclic shift value n, which is 1 or greater. RS cs,max The following applies:

[0192] In one possible implementation, instruction information indicating Y1 is received from a network device.

[0193] In one possible implementation, the first cyclic shift bias value set is {0, 1 mod n} SRS CS,max , … ,(Y1-1) mod n SRS CS,max} is; or The first set of cyclic shift bias values ​​is {0, -1 mod n}. SRS CS,max , … ,(-Y1+1) mod nSRS CS,max}. Here, mod(·) is the modulo operation.

[0194] In one possible implementation, N ap SRS The cyclic shift value of the i-th port of this port is α i And,

number

[0195] In one possible implementation, the first set of cyclic shift bias values ​​includes at least one subset of cyclic shift bias values, and the cyclic shift biases contained in each of the at least one subset of cyclic shift bias values ​​are contiguous.

[0196] In one possible implementation, the cyclic shift-bias interval between any two adjacent cyclic shift-bias value subsets of the at least one cyclic shift-bias value subset is equal.

[0197] In one possible implementation, all of the aforementioned subsets of cyclic shift bias values ​​contain an equal number of cyclic shift bias values.

[0198] In one possible implementation, the number of the at least one cyclic shift bias value subset is Q, and the q-th cyclic shift bias value subset of the Q cyclic shift bias value subsets is {Δ q mod n SRS CS,max , (Δ q +1) mod n SRS CS,max …, (Δ q +S q -1) mod n SRS CS,max}or {-Δ q mod n SRS CS,max , (-Δ q -1) mod n SRS CS,max …, (-Δ q -S q +1) mod n SRS CS,max} and Here, Δ0 = 0, Δ q =Δ'·q, where q=0,1,…,Q-1, and Δ' is the cyclic shift-bias interval between any two adjacent cyclic shift-bias value subsets, n SRS cs,max This is the maximum cyclic shift value, S q This is the number of cyclic shift bias values ​​included in the q-th cyclic shift bias value subset,

number

[0199] In one possible implementation, n SRS cs,max =Δ'·Q.

[0200] In one possible implementation, Q is N on the same comb offset. ap SRS Q is the number of ports in a given port, or Q is N ap SRSQ is the number of different cyclic shifts occupied by a given port, or Q is the total number of ports corresponding to the first SRS resource. ap SRS is, or

number

[0201] In one possible implementation, N ap SRS The cyclic shift value of the i-th port of this port is α i And,

number

number

[0202] In one possible implementation,

number

[0203] In one possible implementation, N ap SRS The cyclic shift value of the i-th port of this port is α i And,

number

[0204] According to the eighth aspect, a communication method is provided, corresponding to N of the first SRS resources. ap SRS The process includes receiving an SRS based on the initial cyclic shift value of the i-th port among the ports and the first cyclic shift bias value set of the i-th port in the first cyclic shift bias value set, where i is 1 to N. ap SRS It is a positive integer.

[0205] In one possible implementation, the first set of cyclic shift bias values ​​includes Y1 consecutive cyclic shift biases, Y1 is the maximum cyclic shift value n, which is 1 or greater. RS cs,max The following applies:

[0206] In one possible implementation, instruction information indicating Y1 is sent.

[0207] In one possible implementation, the first cyclic shift bias value set is {0, 1 mod n} SRS CS,max , … ,(Y1-1) mod n SRS CS,max} is; or The first set of cyclic shift bias values ​​is {0, -1 mod n}. SRS CS,max , … ,(-Y1+1) mod n SRS CS,max}. Here, mod(·) is the modulo operation.

[0208] In one possible implementation, N ap SRS The cyclic shift value of the i-th port of this port is α i And,

number

[0209] In one possible implementation, the first set of cyclic shift bias values ​​includes at least one subset of cyclic shift bias values, and the cyclic shift biases contained in each of the at least one subset of cyclic shift bias values ​​are contiguous.

[0210] In one possible implementation, the cyclic shift-bias interval between any two adjacent cyclic shift-bias value subsets of the at least one cyclic shift-bias value subset is equal.

[0211] In one possible implementation, all of the aforementioned subsets of cyclic shift bias values ​​contain an equal number of cyclic shift bias values.

[0212] In one possible implementation, the number of the at least one cyclic shift bias value subset is Q, and the q-th cyclic shift bias value subset of the Q cyclic shift bias value subsets is {Δ q mod n SRS CS,max , (Δ q +1) mod n SRS CS,max …, (Δ q +S q -1) mod n SRS CS,max}or {-Δ q mod n SRS CS,max , (-Δ q -1) mod nSRS CS,max …, (-Δ q -S q +1) mod n SRS CS,max} and Here, Δ0 = 0, Δ q =Δ'·q, where q=0,1,…,Q-1, and Δ' is the cyclic shift-bias interval between any two adjacent cyclic shift-bias value subsets, n SRS cs,max This is the maximum cyclic shift value, S q This is the number of cyclic shift bias values ​​included in the q-th cyclic shift bias value subset,

number

[0213] In one possible implementation, n SRS cs,max =Δ'·Q.

[0214] In one possible implementation, Q is N on the same comb offset. ap SRS Q is the number of ports in a given port, or Q is N ap SRS Q is the number of different cyclic shifts occupied by a given port, or Q is the total number of ports corresponding to the first SRS resource. ap SRS is, or

number

[0215] In one possible implementation, N ap SRS The cyclic shift value of the i-th port of this port is α i And,

number

number

[0216] In one possible implementation,

number

[0217] In one possible implementation, N ap SRS The cyclic shift value of the i-th port of this port is α i And,

number

[0218] According to the ninth aspect, one embodiment of the present application provides a communication device. This communication device has a function to implement any of the above aspects. The above function may be implemented by hardware or by hardware running corresponding software. The hardware or software includes one or more modules or units corresponding to the above function, for example, a transceiver module or unit, a processing module or unit, or an acquisition module or unit.

[0219] According to the tenth aspect, one embodiment of the present application provides an electronic device including memory and a processor. The memory is configured to store a computer program. The processor is configured to enable the electronic device to perform any one of the aforementioned aspects when calling a computer program.

[0220] According to the eleventh aspect, one embodiment of the present application provides a chip system. The chip system includes a processor. The processor is coupled to memory. The processor executes a computer program stored in memory and realizes one of the aforementioned aspects.

[0221] The chip system may be a single chip or a chip module containing multiple chips.

[0222] According to the twelfth aspect, one embodiment of the present application provides a computer-readable storage medium. The computer-readable storage medium stores a computer program. When the computer program is executed by a processor, any of the methods of the aforementioned aspects are carried out.

[0223] According to the thirteenth aspect, one embodiment of the present application provides a computer program product. When the computer program product is executed on an electronic device, the electronic device is enabled to perform any one of the aforementioned aspects.

[0224] Regarding the beneficial effects of Aspects 9 through 13, it is understood that the relevant explanations for Aspects 1 through 4 may be referenced. Further details will not be provided here. [Brief explanation of the drawing]

[0225] [Figure 1] This figure shows the architecture of a communication system according to one embodiment of the present invention.

[0226] [Figure 2] This figure shows a comb according to one embodiment of the present invention.

[0227] [Figure 3] This figure shows an application scenario according to one embodiment of the present invention.

[0228] [Figure 4] This figure shows an SRS resource according to one embodiment of the present invention.

[0229] [Figure 5] This figure shows a communication method according to one embodiment of the present invention.

[0230] [Figure 6] This is a diagram of another SRS resource according to one embodiment of the present application.

[0231] [Figure 7] This is a diagram of another SRS resource according to one embodiment of the present application.

[0232] [Figure 8] This is a diagram of another SRS resource according to one embodiment of the present application.

[0233] [Figure 9] This is a diagram of another SRS resource according to one embodiment of the present application.

[0234] [Figure 10] This is a diagram of another SRS resource according to one embodiment of the present application.

[0235] [Figure 11] This is a diagram of another communication method according to one embodiment of the present invention.

[0236] [Figure 12a] This is a diagram of another SRS resource according to one embodiment of the present application. [Figure 12b] This is a diagram of another SRS resource according to one embodiment of the present application. [Figure 12c] This is a diagram of another SRS resource according to one embodiment of the present application. [Figure 12d] This is a diagram of another SRS resource according to one embodiment of the present application. [Figure 12e] This is a diagram of another SRS resource according to one embodiment of the present application. [Figure 12f] This is a diagram of another SRS resource according to one embodiment of the present application. [Figure 12g] This is a diagram of another SRS resource according to one embodiment of the present application. [Figure 12h] This is a diagram of another SRS resource according to one embodiment of the present application.

[0237] [Figure 13] This is a diagram of another SRS resource according to one embodiment of the present application.

[0238] [Figure 14] This is a diagram of another SRS resource according to one embodiment of the present application.

[0239] [Figure 15] This is a block diagram of a communication device according to one embodiment of the present invention. [Modes for carrying out the invention]

[0240] The technical solutions in the embodiments of this application will be described below with reference to the accompanying drawings of the embodiments.

[0241] Furthermore, the classifications of aspects, cases, categories, and embodiments in this application are intended solely for the purpose of facilitating explanation and do not constitute a specific limitation. The features of aspects, categories, cases, and embodiments can be combined in a non-consistent manner.

[0242] Furthermore, the terms “First,” “Second,” and “Third” in the embodiments of this application are intended solely for distinction and are not intended to imply any limitation to the application. Also, in the embodiments of this application, the sequence number of a process does not mean the order of execution. The order of execution of a process should be determined based on the function and internal logic of the process and is not intended to imply any limitation to the implementation process of the embodiments of this application. Furthermore, the terms “includes,” “has,” and their variations are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device including a set of steps or units may, optionally, include further steps or units not listed, and optionally include other steps or units specific to the said process, method, product, or device.

[0243] The “embodiments” as used herein indicate that certain features, structures, or characteristics described in relation to that embodiment may be included in at least one embodiment of the present application. The term, appearing in various parts of this specification, does not necessarily mean the same embodiment, nor does it mean mutually exclusive, independent, or alternative embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0244] The technical solutions in the embodiments of this application can be applied to various communication systems, such as global systems for mobile communications (GSM), code division multiple access (CDMA) systems, wideband code division multiple access (WCDMA) systems, general packet radio service (GPRS) systems, long-term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, universal mobile telecommunications systems (UMTS), worldwide interoperability for microwave access (WiMAX) communication systems, future fifth-generation (5G) systems, or new radio (NR) systems.

[0245] Figure 1 is a diagram of a communication system to which an embodiment of the present invention can be applied. As shown in Figure 1, the wireless communication system may include a network device 110 and one or more terminal devices that communicate with each other (for example, terminal devices 121 and 122 shown in Figure 1). When the network device 110 transmits a signal, the network device 110 is the transmitting end and terminal device 121 or terminal device 122 is the receiving end. On the other hand, when terminal device 121 or terminal device 122 transmits a signal, terminal device 121 or terminal device 122 is the transmitting end and the network device 110 is the receiving end.

[0246] The network device 110 may be an access network device configured to communicate with terminal device 121 or terminal device 122. The access network device may be a base transceiver station (BTS) in a GSM or CDMA system; or a base station i.e., node B (NB) in a WCDMA system; or an evolved base station i.e., evolved node B (eNB or eNodeB) in an LTE system; or a radio control device in a cloud radio access network (CRAN) scenario; or a next-generation node B (gNodeB, gNB) i.e., new radio (NR) access or base station in a 5th generation mobile network (5G). Alternatively, the network device 110 may be a relay station, access point, in-vehicle equipment, wearable device, network device in a future 5G network, network device in a future evolved PLMN network, etc. The embodiments of the present application are not limited thereto.

[0247] Terminal device 121 or terminal device 122 may be user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile console, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user equipment. Alternatively, the terminal device may be a mobile phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, handheld device, wearable device, computing device, portable device, in-vehicle device, etc., smartphone, smart glasses, terminal device in a 5G network, terminal device in a future advanced public land mobile network (PLMN), etc. It is not limited to the embodiments of this application.

[0248] It can be seen that the network device 110 in Figure 1 may be replaced with a terminal device 110. Specifically, embodiments of the present invention are applicable to direct communication scenarios, such as device-to-device (D2D). For example, embodiments of the present invention may be applied to vehicle-to-everything (V2X).

[0249] In the following embodiments, device numbers are omitted for the sake of clarity. For example, "terminal device" refers to "terminal device 121 or terminal device 122," and "network device" refers to "network device 110."

[0250] First, the concepts in the embodiments of this application will be explained.

[0251] 1. SRS, SRS resources, SRS ports, and SRS combs

[0252] The SRS is an uplink reference signal transmitted by a terminal device to a network device (e.g., a base station). The access network device obtains the terminal device's UL channel based on the SRS transmitted by the terminal device. Alternatively, the access network device obtains the terminal device's DL channel based on channel reciprocity and performs data scheduling for the terminal device based on the DL channel (e.g., pre-coding for downlink data, modulation and coding scheme (MCS) for downlink data, or scheduled time-frequency resources for downlink data). In the following description, user equipment (UE) and / or user can be considered terminal devices.

[0253] An SRS resource is configured by a network device (e.g., a base station), and one SRS resource may correspond to a time-frequency resource and a code domain resource. One code domain resource corresponds to one SRS sequence and is also called an SRS sequence resource. One SRS resource may correspond to one or more SRS ports. One or more SRS ports may correspond to the same time-frequency resource, different SRS ports may correspond to different SRS sequences, or different SRS ports may correspond to different time-frequency resources. In some implementations, an SRS resource is configured semi-statically by a network device using higher-layer parameters. One SRS port corresponds to one group of time-frequency resources and one SRS sequence. A terminal device transmits the corresponding SRS sequence on the time-frequency resources corresponding to one or more ports corresponding to one SRS resource. An SRS sequence may also be called an SRS transmit symbol sequence, an SRS transmit symbol vector, etc. In embodiments of this application, the name of the SRS sequence is not limited.

[0254] SRS Port: An SRS port is also called a port or antenna port. In the following embodiments, port refers to an SRS port. An SRS port is used to carry SRS. One SRS port corresponds to one SRS, or one SRS port corresponds to one SRS sequence. Different SRS ports may be multiplexed in at least one of the following modes: code division mode, frequency division mode, time division mode, or spatial division mode. In one implementation, one SRS resource is N ap SRS ∈{1,2,4} SRS ports (antenna ports)

number

[0255] Reference port for SRS resource: The reference port for an SRS resource may be the first SRS port, or the port with port index 0, or the port with the smallest port index among the ports corresponding to the SRS resource.

[0256] SRS comb: A comb divides frequency-domain subcarriers into multiple groups. The frequency-domain spacing between two adjacent subcarriers in each subcarrier group is a fixed value. That is, frequency-domain subcarriers on a single SRS comb are distributed at equal intervals. The frequency-domain spacing between two subcarriers is equal to the total number of combs, K. TC Also known as a comb. A comb is also several subcarriers extracted at equal intervals in the frequency domain. The extraction interval is the total number of combs, K. TC It is called K TC It is semi-statically configured by the network device using higher-layer parameters. For example, K TC ={2,4,8}. Total number of combs K TC The frequency domain subcarrier is K TC It can also be understood as being divided into equal-spacing subcarrier groups. Total comb number K TC This is sometimes called comb density or frequency domain comb number. Total comb number K TC This can also represent the total number of supported comb offsets. Figure 2 shows examples of combs for three different comb counts according to the present invention. A comb can be understood as a subcarrier group corresponding to a comb offset. Comb offsets are also sometimes abbreviated as combs. For example, comb offset X may be called comb X. In Figure 2, each cell represents a resource element (RE) or subcarrier, and the blacked-out cells are examples of RE locations or subcarrier locations occupied by combs for different comb counts. On the left side of Figure 2, K TC =2 indicates that the frequency domain subcarriers are divided into two subcarrier groups based on a subcarrier spacing of 2, i.e., two combs corresponding to comb offsets 0 and 1, respectively. The SRS port of a terminal device may transmit the corresponding SRS on one of the two combs. In the center of Figure 2, K TC=4 indicates that the frequency domain subcarriers are divided into four subcarrier groups based on a subcarrier spacing of 4, i.e., four combs corresponding to comb offsets 0, 1, 2, and 3, respectively. The SRS port of the terminal device may transmit the corresponding SRS on one of the four combs. On the right side of Figure 2, K TC =8 indicates that the frequency domain subcarrier is divided into eight subcarrier groups based on a subcarrier interval of 8, i.e., eight combs corresponding to comb offsets 0, 1, 2, 3, 4, 5, 6, and 7, respectively. The SRS port of a terminal device may transmit SRS on one of the eight combs. The comb offset (CO) indicates the subcarrier offset value of the comb relative to the reference comb. For example, the comb offset of the blacked-out cell in Figure 2 is 0. Multiple ports of an SRS resource may be distributed on the same comb or distributed across two or more combs. The reference comb may be the starting subcarrier of a frequency domain unit, and a frequency domain unit may be one or more RBs or a frequency domain subband. In one implementation, the reference comb offset corresponding to subcarrier 0 corresponding to a common resource block 0 may be defined as 0. In another implementation, the reference comb offset corresponding to the lowest subcarrier in the bandwidth part (BWP) may be defined as 0. The comb offset corresponding to the reference comb is called the reference comb offset. Typically, the reference comb offset is 0.

[0257] For example, the CO of port p is k TC p This represents the starting position of the frequency domain of port p, k0 p You can also obtain this according to equation (1).

number

[0258] In equation (1), n offset FH +noffset RPFS This represents the frequency domain subband offset, n offset FH This corresponds to the frequency domain offset of the frequency hopping subband used for frequency hopping transmission in SRS, and n offset RPFS This corresponds to the frequency domain offset of the subband used to transmit SRS during partial SRS (hereinafter referred to as partial SRS) transmission. p This can also be obtained according to equation (2).

number

[0259] In equation (2), n shift N SC RB is the frequency domain resource offset, and n shift N SC RB This represents the frequency domain offset value relative to the reference frequency domain position during SRS transmission. The frequency domain offset value may be one or more resource blocks (RBs). shift represents the number of frequency domain resource blocks (RBs) in the offset, N SC RB k represents the number of subcarriers contained in one RB, and k offset l' This is the comb offset adjustment value. When a network device configures a higher-layer signaling SRS-PosResource for a terminal device, k offset l' l' represents the comb offset adjustment value on the symbol with index l'; otherwise, k offset l' = 0. mod(·) is the modulo operation. k TC p This can also be obtained according to equation (3).

number

[0260] In equation (3), ￣k TC This is the comb offset parameter ￣k corresponding to the SRS resource configured by the network device for the terminal device. TC That is. ￣k TC Alternatively, this may be the comb offset of the reference port corresponding to the SRS resource. The cyclic shift value of the reference port is also called the cyclic shift value of the reference port corresponding to the SRS resource or the cyclic shift value of the reference port corresponding to the SRS resource. TC This is the total number of combs. ap SRS n is the total number of ports corresponding to the SRS resources. RS cs,max n is the maximum cyclic shift value. SRS CS This is the cyclic shift value of the reference port. TC and / or n SRS CS It is semi-statically configured by the network device using the upper-layer parameter transmissionComb.

[0261] Optionally, p in equations (1) to (3) can be represented as port p or the p-th port group.

[0262] 3. SRS cyclic shift (CS)

[0263] Sequence r used for SRS in LTE and NR u,v (α,δ) (n) is the base sequence. u,v It is obtained by the cyclic shift of (n).

number

[0264] α is a real number, and α is a cyclic shift value, also called a CS grid value or CS index, and sometimes called a cyclic shift (CS) or cyclic shift index. For example, a cyclic shift value Y may also be called a cyclic shift Y or cyclic shift index Y, where Y is a value. In the embodiments of this application, a cyclic shift value is used as an example for explanation. δ = log2(K TC ) and δ is an integer. u and v are indices of the basic sequences within the SRS basic sequence group, and both u and v are integers. j is the imaginary unit. M SC,b SRS is the length of the SRS sequence, M SC,b SRS is a positive integer, and M SC,b SRS =mN SC RB / 2 δ And here, N SC RB m is the number of subcarriers in a resource block (RB), and m is the number of RBs occupied by the SRS during a single frequency-hopping transmission. n is the number of an element in the SRS sequence, and n is an integer. Sequence elements (specifically, elements in an SRS sequence) are sequentially mapped to subcarriers corresponding to SRS resources in ascending order of index, and their subcarrier indices are sorted in ascending order.

[0265] Basic sequence ￣r u,v (n) may be a sequence generated based on a Zadoff-Chu (ZC) sequence, for example, the ZC sequence itself, or a sequence generated by extending or terminating the ZC sequence using a cyclic shift value. SRS port p i The corresponding cyclic shift value α i This is obtained according to equation (5).

number

[0266] n SRS CS,i is port p i This is the cyclic shift value of n in equation (5). SRS CS,i This is obtained according to equation (6).

number

[0267] N ap SRS n represents the number of ports (specifically, the number of SRS ports included in the SRS resource), SRS CS ∈{0,1,…,n SRS CS,max} is the cyclic shift value of the reference port, n SRS CS It is semi-statically configured by network devices using the upper-layer parameter transmissionComb. RS cs,max n is the maximum cyclic shift value. RS cs,max The meaning is that the delay region is n RS cs,max It can also be understood as dividing it equally into individual parts, or by setting the phase value 2π to n RS cs,max This can be understood as dividing it equally into individual parts. When CS values ​​are assigned to multiple ports corresponding to an SRS resource, in order to minimize interference between the multiple ports of the SRS resource, the CS corresponding to the ports of the SRS resource is, if possible, based on the maximum interval of n RS cs,max Divide it equally within the length. In one implementation, as shown in Table 1, n RS cs,max and K TC There is a correlation between the values. [Table 1]

[0268] For different base sequences, interference occurs between the resulting SRS sequences, regardless of whether the same or different cyclic shift values ​​are used. Specifically, a network device may assign SRS sequences obtained based on the same or different cyclic shift values ​​for different base sequences to different terminal devices, and these terminal devices may transmit those SRS sequences using the same time-frequency resources, causing interference between the terminal devices.

[0269] Different SRS sequences may be obtained using the same base sequence but with different cyclic shift values ​​α. Since the SRS sequences obtained based on the same base sequence and different cyclic shift values ​​are orthogonal to each other, a network device may assign the SRS sequences obtained based on the same base sequence and different cyclic shift values ​​to different terminal devices, and those terminal devices may transmit the SRS sequences using the same time-frequency resources. The SRS sequences do not cause interference between terminal devices. However, because the distances from different terminal devices to different network devices are different, different terminal devices will have different delays. As an example, consider receiving point (transmitting / receiving point, TRP) 1 and TRP 2. As shown in Figure 3, TRP 1 and TRP 2 constitute mutually orthogonal SRS resources for UE 1 and UE 2. Typically, the base sequence of SRS 1 is the same as the base sequence of SRS 2, but the cyclic shift values ​​α for SRS 1 and SRS 2 are different. Thus, SRS 1 and SRS 2 are orthogonal to each other. However, because the distances from UE 1 and UE 2 to TRP 1 and TRP 2 are different, the delay of SRS 1 transmitted from UE 1 to TRP 2 and the propagation delay of SRS 2 transmitted from UE 2 to TRP 2 are different. For example, as shown in Figure 3, the propagation delay from UE 1 to TRP 1 is τ 1,1 Therefore, the propagation delay from UE 1 to TRP 2 is τ 1,2 Therefore, the propagation delay from UE 2 to TRP 1 is τ 2,1 Therefore, the propagation delay from UE 2 to TRP 2 is τ 2,2 Therefore, τ1,1 <τ 1,2 and τ 2,1 <τ 2,2 Orthogonality is guaranteed by sign division multiplexing. For example, orthogonality between SRS 1 and SRS 2 is ensured by using different SRS cyclic shift values. The maximum number of SRS CS configured for UE 1 and UE 2 is 12, with SRS 1 occupying CS 0, CS 3, CS 6, and CS 9, and SRS 2 occupying CS 1, CS 4, CS 7, and CS 10. If there is no delay difference, SRS 1 and SRS 2 occupy different delay ranges in the delay region, thus ensuring sign division orthogonality. However, if there is a delay difference, the propagation delay between TRP 2 and UE 1 is greater than the propagation delay between TRP 2 and UE 2. TRP 2 and UE 2 are assumed to be time-aligned. In this case, the channel result obtained by TRP 2 measuring SRS 1 has an offset in the delay region, causing interference with SRS 2 and affecting the accuracy of the channel measurement.

[0270] In one possible implementation, to solve the above interference problem, frequency-domain resources for transmitting SRS may be randomized through comb-offset hopping (CO-hopping) to reduce interference to the SRS. By randomizing frequency-domain resources for transmitting SRS through CO-hopping, a good interference randomization effect can be obtained. However, in actual application scenarios, there are both terminal devices that support CO-hopping and terminal devices that do not support CO-hopping. Terminal devices that do not support CO-hopping are sometimes called legacy terminal devices (e.g., legacy UEs, or release 15 to release 17 terminal devices). In this application, a terminal device that supports CO-hopping is a terminal device that can randomize frequency-domain resources for transmitting SRS through CO-hopping. That is, a terminal device that supports CO-hopping has the ability or function to randomize frequency-domain resources for transmitting SRS through CO-hopping. In this application, a terminal device that does not support CO-hopping is a terminal device that cannot randomize frequency-domain resources for transmitting SRS through CO-hopping. That is, a terminal device that does not support CO-hopping does not have the ability or function to randomize frequency-domain resources for transmitting SRS through CO-hopping. When CO hopping is enabled, multiple ports corresponding to SRS resources must occupy the same CO to avoid more serious interference problems caused by random hopping. If a network device configures ports corresponding to SRS resources of terminal devices that support CO hopping and ports corresponding to SRS resources of terminal devices that do not support CO hopping on the same comb for multiplexing, the channel estimation performance of the two terminal devices may be significantly reduced. Therefore, a pressing issue that needs to be addressed is how to avoid the reduction in channel estimation performance in the above case while fully utilizing the interference randomization effect of CO hopping. The comb offset for hopping of multiple ports corresponding to SRS resources of terminal devices is consistent.For example, in CO hopping, the CO of a port may change randomly. For instance, as shown in Figure 4, the SRS resources correspond to ports 0, 1, 2, and 3, with the comb offset of ports 0 and 2 being CO 0, and the comb offset of ports 1 and 3 being CO 2. In CO hopping, all four ports may be moved down by just one CO. After the move, the comb offset of ports 0 and 2 is CO 1, and the comb offset of ports 1 and 3 is CO 3. However, CO 3 is occupied by a CO that does not support CO hopping. As a result, serious interference occurs in the SRS transmitted over CO 3.

[0271] In other words, in the above implementation, the COs (Call of Obstacles) that a terminal device uses to transmit SRS are the same in order to reduce interference. As a result, the COs obtained through hopping overlap with the COs of UEs that do not support hopping, and SRS transmissions at the overlapping COs are affected. In embodiments of the present invention, multiple ports for transmitting SRS may be grouped together, and different port groups may correspond to different CO hopping sets. Thus, ports in different port groups may hop at different CO steps. This reduces the probability of repetition with the COs of ports of UEs that do not support CO hopping, thereby reducing interference during SRS transmission.

[0272] The communication method in the embodiment of the present invention will be described below with reference to Figure 5. As shown in Figure 5, the communication method 500 includes the following steps.

[0273] S510: The terminal device corresponds to the first comb offset set φ of the p-th port group. p The network device transmits SRS based on at least one comb offset within the first set of comb offsets φ corresponding to the pth port group. p SRS is received based on at least one comb offset within the system.

[0274] The first SRS resource is N ap SRS It corresponds to N ports. ap SRS A single port may be divided into P port groups. Each P port group includes the p-th port group. The value of P is between 1 and N. ap SRS The following are positive integers. p is a positive integer in the range 1 to P. For example, p may be 1, 2, ..., P sequentially; or p may be a positive integer in the range 0 to P-1, and p may be 0, 1, ..., P-1 sequentially. Arbitrarily, N ap SRS It may be configured by a network device for terminal devices.

[0275] Optionally, the first comb offset set φ p This may also be called the set that supports CO hopping, or the CO value to which the p-th port group can be mapped after CO hopping is enabled. The first comb offset set φ p Alternatively, the first comb offset range φ p It may be replaced by the first comb offset area φ p These may be replaced with, for example. The name of the first comb offset set is not limited to this embodiment of the present application.

[0276] Optionally, the first comb offset set φ p Length n p This may be specified in the protocol or configured by a network device. The first comb offset set φ p Length n p This is the first comb offset set φ p It can also be understood as the number of comb offsets included. p is 1 or greater, K TC n is a positive integer. p=1 indicates that the p-th port group does not support CO hopping, or that at each SRS transmission point, the SRS corresponding to the p-th port group can only be transmitted with a unique CO. p =K TC This indicates that the p-th port group supports CO hopping at all COs. Specifically, in this case, the first comb offset set is φ p ={0,1,…, K TC -1}, and at each SRS transmission point, the SRS corresponding to the p-th port group can only be transmitted on all supported COs.

[0277] Optionally, P being 1 corresponds to N for the first SRS resource. ap SRS This indicates that each port belongs to one port group, N ap SRS n is a positive integer; N corresponds to the first SRS resource. ap SRS Each port is the same first comb offset set φ p Indicates that it corresponds to; or N corresponding to the first SRS resource. ap SRS This indicates that each port corresponds to the same available CO value for which a mapping can be performed (if CO hopping is enabled).

[0278] Optionally, P is N ap SRS This means that N corresponds to the first SRS resource. ap SRS One of the individual ports belongs to one port group, specifically the first comb offset set φ p The length of is 1, and we show that one port in the p-th port group corresponds to one comb offset set; each port in the first SRS resource corresponds to one first comb offset set φ p This indicates that it corresponds to a first comb offset set φ where all ports of the first SRS resource are different. pThis may also be supported. In this case, all ports of the first SRS resource can perform CO hopping in different available CO areas.

[0279] Optionally, P is greater than 1 or N ap SRS A smaller positive integer indicates that at least two ports belong to one port group. In one implementation, different port groups of the P port groups of the first SRS resource belong to different first comb offset sets φ. p Correspondingly, different port groups include different ports. In this case, ports included in different port groups of the first SRS resource can perform CO hopping in different available CO areas.

[0280] Optionally, before S510, the terminal device is N ap SRS Individual ports may be grouped together, and the terminal device can have a number of port groups P and N ap SRS Based on the number of ports, P port groups can be obtained. Optionally, before S510, the network device can be N for terminal devices. ap SRS A number of ports and port groups P can be configured. A terminal device is configured with N network devices. ap SRS Based on the number of ports and P, P port groups can be determined. For example, the number of ports included in each port group is N. ap SRS / P is N ap SRS If / P is not an integer, to obtain the number of ports included in each port group, N ap SRS You may round up or down for / P. Optionally, each port group may be N ap SRSThis may be obtained by extracting equally spaced ports from the number of ports. Specifically, the interval between port indices of adjacent ports contained in each of the P port groups is N ap SRS / P. For example, if the port indices corresponding to the multiple ports included in each port group are sorted in ascending order, the absolute difference in port indices of adjacent ports is N ap SRS / P. The CS corresponding to the port of the SRS resource is n based on the maximum interval if possible. RS cs,max Because it is divided equally by length, when grouping ports, extraction is performed at as equal intervals as possible. In this way, when at least one comb offset set is selected from the first comb offset set for a port group, the probability of overlap with the comb offset set of ports of other terminal devices' SRS resources can be reduced as much as possible, which helps to reduce interference. For example, N ap SRS P is 4, and there are a total of 4 ports: port 0, port 1, port 2, and port 3. P is 2, and these ports can be divided into two port groups. The first port group includes port 0 and port 2, and the second port group includes port 1 and port 3. For the first port group, the difference in port indices corresponding to port 2 and port 0 is 2. For the second port group, the difference in port indices corresponding to port 3 and port 1 is also 2.

[0281] Optionally, before S510, or if the terminal device is N ap SRS Before grouping individual ports, method 500 further includes the following: When a terminal device decides to perform CO hopping and performs CO hopping, the terminal device may perform S510, or the terminal device performs N ap SRSIndividual ports may be grouped together. In other words, if the terminal device determines that it needs to transmit SRS in hopping mode, it may perform S510, or N ap SRS The ports may be grouped together. Optionally, a network device may transmit instruction information indicating that a terminal device will perform CO-hopping, and the terminal device may decide to perform CO-hopping based on the instruction information indicating that the terminal device will perform CO-hopping. Optionally, the terminal device may use the first comb offset set φ p Length n p Based on this, you may decide whether to perform CO hopping. For example, the first comb offset set φ p Length n p The fact that it is 1 indicates that CO hopping is not performed, and the first comb offset set φ p Length n p If K is greater than 1, TC The following indicates that CO hopping is performed. In this embodiment of the present application, the manner in which a terminal device decides to perform CO hopping is not limited.

[0282] Optionally, a terminal device may determine the comb offset set for each of the P port groups. For example, a network device may directly configure the comb offset set for each port group; or the comb offset set for each port group may be specified in the protocol; or the network device may configure parameters for determining the comb offset set for each port group, and the terminal device determines the comb offset set for each port group based on the configured parameters. In this embodiment, the form in which the terminal device determines the comb offset set for each of the P port groups is not limited. Optionally, in some possible implementations, the network device may configure, for the terminal device, a comb offset set corresponding to each port group that does not support CO hopping, and the terminal device K TC Based on the number of comb offsets and the set of comb offsets that do not support CO hopping, the set of comb offsets that support CO hopping for each port group is determined. The sum of the number of comb offsets in the set of comb offsets that do not support CO hopping for a port group and the number of comb offsets in the set of comb offsets that support CO hopping for that port group is K TC The union of a comb offset in a port group that does not support CO-hopping and a comb offset in the same port group that does support CO-hopping is the set {0,1,2,…,K}. TC The comb offset set of a port group that does not support CO hopping may be called a comb offset set that cannot be used to transmit the SRS corresponding to that port group. For example, take the p-th port group as an example. TC= 8, and the second comb offset set for the p-th port group that does not support CO hopping is {0, 1, 2, 3}. In this case, the first comb offset set for the p-th port group that supports CO hopping is φ p ={4,5,6,7}. The sum of the lengths of the first comb offset set and the second comb offset set is K TC Therefore, the union of the first comb offset set and the second comb offset set is {0,1,2,3,4,5,6,7}.

[0283] The comb offset set for each port group determined by the terminal device can take on different forms. Below, we define the first comb offset set φ for the p-th port group out of P port groups. p Use the following as an example for explanation: The first comb offset set φ corresponding to the pth port group. p I will explain three cases regarding this.

[0284] Case 1: The comb offset interval between any two adjacent comb offsets in the first comb offset set corresponding to the p-th port group is equal. That is, the comb offsets included in the first comb offset set are equally spaced and discrete. Two adjacent comb offsets can be understood as follows: the first comb offset set φ p Sort the comb offset values ​​contained in in ascending order to obtain the following set:

number

number

number

[0285] The above describes the definition of two adjacent comb offsets, and this definition of two adjacent comb offsets is applicable to Case 1 and is also applicable to the definition of adjacent comb offsets in other embodiments of this application. Furthermore, the definition of adjacent CS values ​​is the same as the definition of adjacent comb offsets. To avoid repetition, details will not be explained.

[0286] For example, in Case 1, the first comb offset set φ p The number of comb offsets included is n. p If a network device configures or predefined at least two of the following three parameters: the comb offset interval between any two adjacent comb offsets, and the first comb offset in the first comb offset set (also called the reference comb offset), then the terminal device will configure the first comb offset set φ based on these three parameters. p It is possible to make a decision.

[0287] Optionally, this implementation can also be understood as follows: the first comb offset set φ corresponding to the p-th port group. pThe set contains at least one comb offset subset, each containing one comb offset. The comb offset interval between any two adjacent comb offset subsets is equal. The last comb offset subset and the first comb offset subset can also be called adjacent comb offset subsets. Two adjacent comb offset subsets can be understood as follows: The said at least one comb offset subset is sorted in ascending order of the comb offsets it contains. For the k-th comb offset subset and the (k-1)-th comb offset subset, the minimum comb offset contained in the k-th comb offset subset is greater than the maximum comb offset contained in the k-th comb offset subset, where k is 1, 2, ..., or S, and S represents the total number of subsets. In this case, the k-th comb offset subset and the (k-1)-th comb offset subset are adjacent comb offset subsets, and the S-th comb offset subset and the first comb offset subset are adjacent comb offset subsets. The comb offset interval between two adjacent comb offset subsets can be understood as the difference between the j-th comb offsets contained in those two adjacent comb offset subsets, or the absolute value of the difference between the j-th comb offsets contained in those two adjacent comb offset subsets. In some cases, the comb offset interval between two adjacent comb offset subsets can be understood as the difference between the first comb offsets contained in those two adjacent comb offset subsets, or the absolute value of the difference between the first comb offsets contained in those two adjacent comb offset subsets. For example, K TC is 8, and the first comb offset set φ p={0,2,4,6} contains four comb offset subsets {0},{2},{4},{6}. The comb offset interval between the first comb offset subset {0} and the second comb offset subset {2} is 2, the comb offset interval between the second comb offset subset {2} and the third comb offset subset {4} is 2, the comb offset interval between the third comb offset subset {4} and the fourth comb offset subset {6} is 2, and the comb offset interval between the fourth comb offset subset {6} and the first comb offset subset {0} is 2.

[0288] The above describes the definition of adjacent comb offset subsets, and this definition of adjacent subsets is applicable to Case 1 and is also applicable to the definition of adjacent subsets in other embodiments of this application. Furthermore, the definition of adjacent CS subsets is the same as the definition of adjacent comb offset subsets. Details will not be explained to avoid repetition. Furthermore, the above describes the definition of the comb offset interval between two adjacent comb offset subsets, and this definition of the comb offset interval between two adjacent comb offset subsets is applicable to Case 1 and is also applicable to the definition of the comb offset interval between two adjacent comb offset subsets in other embodiments of this application. Furthermore, the definition of the CS interval between adjacent CS subsets is the same as the definition of the comb offset interval between two adjacent comb offset subsets. Details will not be explained to avoid repetition.

[0289] Case 2: The first comb offset set φ corresponding to the p-th port group pThe comb offsets in each comb offset subset are consecutive, and the comb offset interval between any two adjacent comb offset subsets in the at least one comb offset subset is equal. That is, the comb offsets in a comb offset subset are consecutive, and the comb offset subsets are equally spaced. The last comb offset subset and the first comb offset subset may be two adjacent comb offset subsets. The comb offsets in each comb offset subset are consecutive, which can be understood as the interval between adjacent comb offsets in each comb offset subset being 1. For example, the comb offsets in a comb offset subset are consecutive, which can be understood as follows: the comb offsets in a comb offset subset are sorted in ascending order of value, and the k-th comb offset CO p k and the (k-1)th comb offset CO p k-1 The difference between the two is CO p k -CO p k-1 = 1. For example, CO2 - CO1 = 1. Comb Offset K TC Note that comb offsets -1 and comb offset 0 can also be considered continuous. Optionally, every subset of comb offsets contains the same number of comb offsets. Optionally, the total number of combs can be K. TC This can be divisible by the interval between two adjacent comb tooth offset subsets. For example, K TC is 8, and the first comb offset set φ pThe set {0,1,4,5} contains two subsets, {0,1} and {4,5}. The comb offsets in the first subset {0,1} are continuous, the comb offsets in the second subset {4,5} are continuous, the interval between the first subset {0,1} and the second subset {4,5} is 4, and the interval between the second subset {4,5} and the first subset {0,1} is also 4.

[0290] For example, in Case 2, if a network device configures or pre-defines three parameters: the number of comb offset subsets, the number of comb offsets contained in each comb offset subset, and the starting comb offset (also called the reference comb offset) within each comb offset subset, then the terminal device will determine a first comb offset set φ based on these three parameters. p It is possible to determine the following: Alternatively, if a network device configures or predefined one or more parameters among the number of comb offset subsets, the number of comb offsets contained in each comb offset subset, the starting comb offset (also called the reference comb offset) of at least one comb offset subset, and the interval between adjacent comb offset subsets, the terminal device can determine the first comb offset set φ based on these parameters. p It is possible to make a decision.

[0291] The above explanation describes the definition of a continuous comb offset. This definition of a continuous comb offset is applicable to Case 2 and is also applicable to the definition of a continuous comb offset in other embodiments of this application. Furthermore, the definition of a continuous CS value is the same as the definition of a continuous comb offset. To avoid repetition, further details will not be explained.

[0292] It should be noted that the concept of comb offset subsets was introduced in Cases 1 and 2 to facilitate explanation. In some cases, the first comb offset set φ p The comb offsets that may be included may have the characteristics of Case 1 and Case 2, but this does not limit whether the concept of a comb offset subset exists.

[0293] Case 3: The first comb offset set φ corresponding to the p-th port group p The comb offsets included are continuous. Specifically, the first comb offset set φ p The difference between adjacent comb offsets in is 1. For example, the first set of comb offsets is φ p = {0,1,2,3}. For a specific definition of comb offset continuity, please refer to the explanation in Case 2.

[0294] Optionally, in Case 3, the first comb offset set φ corresponds to the p-th port group. p However, the reference comb offset k of the p-th port group TC,start p and n of the p-th port group p This is obtained based on the number of comb offset steps. Here, k TC,start p k is a positive integer. Specifically, the reference comb offset k TC,start p Using n p A series of comb offsets may be obtained, and the n p Each comb offset is part of the first comb offset set φ p It may be configured as follows:

[0295] Optionally, n of the p-th port group pThe comb offset step may be indicated by a network device or specified in a protocol. The comb offset step may be understood as the hopping value of the comb offset when CO hopping is enabled. The comb offset step is the reference comb offset k TC,start p Corresponding to the standard comb offset k TC,start p This represents a further adjustment value.

[0296] Optionally, the comb offset step represents an additional comb offset value or comb offset difference relative to a reference comb offset, or an additional comb offset value or comb offset difference relative to a starting comb offset, where the starting comb offset belongs to a comb offset set or a comb offset subset. When CO hopping is enabled, the comb offset step can be understood as an adjustment or difference of the comb offset based on a predefined or configured comb offset corresponding to the SRS port (or the corresponding comb offset if CO hopping is disabled). The comb offset step is also called the comb offset difference or comb offset difference value.

[0297] Optionally, the reference comb offset k of the p-th port group. TC,start p This may be indicated by a network device or specified in a protocol. The reference comb offset k of the p-th port group. TC,start p k may be considered the starting comb offset or the starting position of the available comb offset area when the p-th port group performs CO hopping. TC,start pIf it is predefined in the protocol, then reference comb offset k TC,start p This can be 0, 2, or 4.

[0298] Optionally, the reference comb offset k of the p-th port group. TC,start p This may be determined based on several parameters configured by the network device. For example, the terminal device may have a total comb number K configured by the network device. TC , N ap SRS , reference port comb offset ￣k TC , maximum cyclic shift value n RS cs,max , or the cyclic shift value n of the reference port in the p-th port group. SRS CS Based on at least one of the following, the reference comb offset k of the p-th port group TC,start p You may obtain the following. The reference port for the p-th port group may be the port with the smallest port index in the p-th port group. For example, k TC,start p k in equation (3) TC p This may also be the case. Specifically, the terminal device is obtained according to equation (3) k TC p to, k TC,start p It may be decided as follows. Specifically, k TC p This can be understood as a comb offset used when the terminal device does not perform CO hopping. That is, the first comb offset set φ used when the terminal device needs to perform CO hopping. p Standard comb offset k TC,start pk may be the comb offset determined when the terminal device does not perform CO hopping. Alternatively, the comb offset used when the terminal device does not perform CO hopping may be the comb offset configured by default by the network device. In one implementation, all ports in the p-th port group have the same reference comb offset k TC,start p It corresponds to.

[0299] Using (a) and (b) below, the first comb offset set φ in Case 3 p I will explain this.

[0300] (a) The first comb offset set φ corresponding to the p-th port group p The total number of combs is K. TC , the reference comb offset k of the p port group TC,start p or n of the p-th port group p The first comb offset set φ is obtained based on at least one of the comb offset steps. p ga n p Includes individual comb offsets, n p The comb offset is n p Each comb offset step corresponds one-to-one, n p is K TC It is a smaller positive integer, i.e., one comb offset step and a reference comb offset k. TC,start p Based on this, one comb offset can be determined. Optionally, n p The comb offset steps are consecutive. Specifically, the interval between two adjacent comb offset steps is 1.

[0301] Optionally, a network device may transmit a first instruction information, and a terminal device may receive the first instruction information. The first instruction information has a total comb number of K. TC This indicates.

[0302] Optionally, a network device may transmit a second instruction information, and a terminal device may receive the second instruction information. The second instruction information is the first comb offset set φ p Length n p You may also show n p This is the first comb offset set φ p Also called the number of comb offsets included. Optionally, the first set of comb offsets φ p Length n p This may be predefined alternatively. For example, the first comb offset set φ p Length n p It is predefined as 2, 4, or 8.

[0303] Optionally, network devices n p The number of comb offset steps may be shown, or n p The number of comb offset steps may be specified in the protocol. If the network device is n p When indicating a comb offset step, the network device is n p The individual comb offset steps may be shown directly, or indirectly, n p A comb offset step may be indicated. For example, a network device may indicate the maximum value of the comb offset step, and a terminal device may, based on the indicated maximum value of the comb offset step, n p A sequence of comb offset steps can be determined. Alternatively, a network device may use a bitmap to indicate the comb offset steps. The number of bits in the bitmap is K. TC Each bit is a set of available comb offset steps {0, 1, ..., K}. TC Corresponds to one value in {-1}. A bit value of 1 in the bitmap means that the step value corresponding to that bit in the available comb offset step set is np This indicates the comb offset value for each comb offset step.

[0304] Optionally, the first comb offset set is as follows:

number

number

number

number

[0305] Optionally,

number

number

[0306] In one possible implementation,

number

number

[0307] N C = 1600. The first m sequence x1(m) is initialized to x1(0)=1, x1(m)=0, n=1,2,3,...,30, and the second m sequence x2(m) is,

number

[0308] In one possible implementation,

number

number

[0309] In one possible implementation,

number

number

[0310] In one possible implementation,

number

number

[0311] In one possible implementation,

number

number

[0312] In one possible implementation,

number

[0313] In one possible implementation,

number

[0314] In one possible implementation,

number

[0315] In one possible implementation,

number

[0316] In one possible implementation,

number

[0317] Optionally, the first comb offset set φ corresponding to the p-th port group. p The following applies:

number

[0318] Optionally, the first comb offset set φ corresponding to the p-th port group. p The following applies:

number

[0319] Optionally, the first comb offset set φ p teeth

number

[0320] The terminal device is the first comb offset set φ of the pth port group. p After determining this, in the first and second implementations, the comb offsets of all ports in the p-th port group may be equal, and all are the first comb offset. In the third implementation, different ports within the p-th port group may have different comb offsets. In this way, the COs occupied by ports transmitting SRS can be made more random, and thus the probability of overlap between the COs occupied by ports transmitting SRS and the COs of terminal devices that do not support CO hopping is low, thereby reducing interference. The two implementations described above will be explained below.

[0321] In the first implementation, optionally, in (a), the terminal device in S510 corresponds to the first comb offset set φ of the p-th port group. pTransmitting an SRS based on at least one of the aforementioned comb offsets includes: The terminal device transmits an SRS based on the first comb offset set φ p The total number of comb offsets included n p A first value is generated based on this. Here, the range of the first value is [0, n p -1]. The terminal device is the first comb offset set φ p From this, the first comb offset corresponding to the first value is determined. Here, the comb offset of each port in the p-th port group is the first comb offset. The terminal device transmits SRS based on the first comb offset. Optionally, [0, n p One value in -1 is the first comb offset set φ p It corresponds to one comb offset within [0, n]. In other words, [0, n] p n in -1] p The values ​​are the first comb offset set φ p n inside p Each comb offset corresponds one-to-one. Specifically, the terminal device corresponds to the first comb offset set φ p After determining this, for a specific time of SRS transmission, the terminal device will determine the first comb offset set φ p The comb offset of the p-th port group needs to be determined. The terminal device has a total comb offset of n. p Based on this, obtain the first value; based on the first value, the first comb offset set φ p From this, the first comb offset corresponding to the p-th port group may be determined; and the SRS may be transmitted based on the first comb offset. Optionally, the first comb offset set φ is determined based on the first value. p Therefore, when determining the first comb offset corresponding to the p-th port group, the first comb offset set φ pWithin the set of first comb offsets φ, the comb offset corresponding to the first value can be determined as the first comb offset. Optionally, the first value may be a random value. Optionally, the base comb offsets of all ports in the p-th port group are equal. Specifically, the starting comb offsets of all ports in the p-th port group are the same CO, and the first comb offsets of all ports in the p-th port group are equal. Optionally, the base comb offsets of different port groups may be different. Optionally, transmitting an SRS based on the first comb offset can be understood as transmitting an SRS based on the first comb offset at a given transmission point in time. At a different transmission point in time, the terminal device may determine the first comb offset set φ based on a different value. p Another comb offset can be determined from this, and an SRS can be transmitted based on this other comb offset. Specifically, the first comb offset set φ p After determining this, the terminal device transmits the first comb offset set φ in each cycle to transmit the SRS. p A comb offset can be selected from the set of comb offsets, and the SRS can be transmitted in each cycle based on the selected comb offset. Optionally, at different transmission times, the terminal device can select the first set of comb offsets φ pThe same comb offset or different comb offsets can be selected from these. This is not limited to this embodiment of the present application. For example, as shown in Figure 6, a first SRS resource used by a terminal device to transmit SRS corresponds to four ports: port 0, port 1, port 2, and port 3. Port group 1 includes port 2 and port 0; that is, the first port group includes port 2 and port 0. Port group 2 includes port 3 and port 1; that is, the second port group includes port 3 and port 1. Figure 6(a) shows the reference comb offsets of the ports included in each port group, and also shows that COs that do not support CO hopping occupy CO 2 and CO 3 for CS 0 and CS 6, and CO 1 for CS 3 and CS 9. The reference comb offset for port group 1 is CO 0, and the reference comb offset for port group 2 is CO 2. For the first port group, φ1 = {0, 1} and the length n1 of φ1 is 2. For the second port group, φ2 = {2, 3, 0} and the length n2 of φ2 is 3. The terminal device determines that the random first value of port group 1 at the first transmission time is 1, and the terminal device determines that the first comb offset of the first port group φ1 at the first transmission time is the first comb offset {1} at φ1 = {0, 1}, where the 0th comb offset at φ1 = {0, 1} may be {0}. The terminal device determines that the random first value of port group 2 at the first transmission time is 1, and the terminal device determines that the first comb offset of the second port group φ2 at the first transmission time is the first comb offset {3} at φ2={2,3,0}, where the 0th comb offset at φ2={2,3,0} may be {2} and the 2nd comb offset may be {0}. Therefore, the first transmission time is shown in Figure 6(b). The CO of the first port group is CO1, and the CO of the second port group is CO3.The terminal device may determine that the random first value of port group 1 at the second transmission time is 0, and the terminal device may determine that the first comb offset of the first port group φ1 at the second transmission time is the 0th comb offset at φ1={0,1}, where the first comb offset at φ1={0,1} may be {1}. The terminal device may determine that the random first value of port group 2 at the second transmission time is 2, and the terminal device may determine that the first comb offset of the second port group φ2 at the second transmission time is the second comb offset {0} at φ2={2,3,0}, where the 0th comb offset at φ2={2,3,0} may be {2}, and the first comb offset may be {3}. Therefore, the second transmission time is shown in Figure 6(c). The CO of the first port group is CO 0, and the CO of the second port group is CO 0. The terminal device may determine that the random first value of port group 1 at the third transmission time is 1, and the terminal device may determine that the first comb offset of the first port group φ1 at the third transmission time is the first comb offset {1} at φ1={0,1}, where the 0th comb offset at φ1={0,1} may be {0}. The terminal device may determine that the random first value of port group 2 at the third transmission time is 0, and the terminal device may determine that the first comb offset of the second port group φ2 at the third transmission time is the 0th comb offset {2} at φ2={2,3,0}, where the 2nd comb offset at φ2={2,3,0} may be {0}, and the first comb offset may be {3}. Therefore, the third transmission time is shown in Figure 6(d). The CO for the first port group is CO1, and the CO for the second port group is CO2. By analogy, Figures 6(e) and 6(f) can be obtained. The first, second, or third transmission time may be the time when the SRS is transmitted.All figures in Figure 6 are different f(n). SRS ) corresponds to and it can be seen that the different figures in Figure 6 correspond to different transmission times. Alternatively, the terminal device is f(n SRS Based on this, select one of the embodiments from Figures (a) to (f) of Figure 6 to transmit the SRS.

[0322] Optionally, in (a), in S510, the network device corresponds to the first comb offset set φ of the p-th port group. p Receiving an SRS based on at least one of the aforementioned comb offsets includes: The network device receives the first comb offset set φ p The total number of comb offsets included n p A first value is generated based on the following: Here, the range of the first value is [0, n p -1]. The network device is the first comb offset set φ p From this, the first comb offset corresponding to the first value is determined. Here, the comb offset of each port in the p-th port group is the first comb offset. The network device receives the SRS based on the first comb offset. The first comb offset set φ on the network device side. p This is the first comb offset set φ on the terminal device side. p It is the same as the network device being the first comb offset set φ p The method for determining the first comb offset is the same as the method for determining the first comb offset by the terminal device. To avoid repetition, the details will not be explained.

[0323] A network device may configure an initialization identity (ID) for a terminal device to generate a first value, and the terminal device generates the first value based on the initialization ID. Alternatively, the network device may generate the first value based on the initialization ID. In this way, a first comb offset set φ is generated by the network device and the terminal device corresponding to the first value. p The first comb offset determined from is equal to the first comb offset. Therefore, network devices can receive SRS based on the first comb offset. Optionally, the first value may further relate to one or more of the following: the slot index corresponding to the SRS transmission time, the OFDM symbol index corresponding to the SRS transmission time, the OFDM symbol offset corresponding to the SRS transmission time, the SRS transmission periodicity, the system frame index corresponding to the SRS transmission time, or the SRS repeater. For the generation of the first value, see the aforementioned f(n SRS Please refer to the explanation.

[0324] In the second implementation, the network device alternatively uses a bitmap to obtain the first comb offset set φ p The comb offset within the bitmap can be shown. The number of bits contained in the bitmap is K TC Each bit is the first comb offset set φ p It corresponds to one of the comb offset values ​​within the bitmap. A bit value of 1 in the bitmap means that the comb offset corresponding to the SRS transmission is in the first comb offset set φ p It is located within and indicates that it is the comb offset value corresponding to that bit. Specifically, the terminal device is the first comb offset set φ p After determining this, for a specific time of SRS transmission, the terminal device determines the first comb offset set φ based on the bitmap. p Therefore, it is necessary to determine the first comb offset corresponding to the pth port group. Then, the SRS is transmitted based on the first comb offset.

[0325] Optionally, the network device is part of the first comb offset set φ p Based on the comb offsets located within and indicated by the bitmap, the first comb offset of the p-th port group may be determined, and the SRS may be received based on the first comb offset.

[0326] In the first and second implementations, the comb offsets of all ports in the p-th port group are the same, and all are the first comb offset. In some possible implementations, the comb offsets of all ports in the p-th port group may be different, but this is not limited to this embodiment of the present application.

[0327] In the third implementation, the p-th port group has port m p Includes the number of ports. First comb offset set φ p m inside p The comb offset of each port in a set of ports relates to the index of the cyclic shift group to which the cyclic shift value corresponding to that port belongs. The first SRS resource corresponds to T groups of cyclic shift values. One group of cyclic shift values ​​corresponds to one cyclic shift group index. The T groups of cyclic shift values ​​correspond to the sum of the T cyclic shift group indices. The T cyclic shift group indices can be 0, 1, ..., T-1, where T is a positive integer. That is, the first comb offset set φ pThe comb offset set for each port in the p-th port group is related to the index of the cyclic shift group to which the corresponding cyclic shift value belongs. Different ports in the p-th port group can belong to different groups of cyclic shift values, so different ports can have different comb offsets. In this way, the comb offsets used by the p-th port group to transmit SRS can be made more random, which helps reduce interference. Optionally, each of the T groups of cyclic shift values ​​is n SRS CS,max It contains / T cyclic shift values. Optionally, each group of cyclic shift values ​​contains cyclic shift values ​​that are consecutive cyclic shift values. For example, n RS cs,max = 12, and all cyclic shift values ​​are divided into T=4 groups of cyclic shift values, with each group containing 3 cyclic shift values. The three groups of cyclic shift values ​​each contain the following cyclic shift values: {CS 0, CS 1, CS 2}, {CS 3, CS 4, CS 5}, {CS 6, CS 7, CS 8}, {CS 9, CS 10, CS 11}. The cyclic shift group index corresponding to the first group of cyclic shift values ​​{CS 0, CS 1, CS 2} may be 0. The cyclic shift group index corresponding to the second group of cyclic shift values ​​{CS 3, CS 4, CS 5} is 1. The cyclic shift group index corresponding to the third group of cyclic shift values ​​{CS 6, CS 7, CS 8} is 2. The cyclic shift group index corresponding to the fourth group of cyclic shift values ​​{CS 9, CS 10, CS 11} is 3.

[0328] Optionally, the value of the number of groups T of cyclic shift values ​​is equal to the number of antenna ports N. ap SRSIt may be any of 1, 2, 4, or 8. The number T of groups of cyclic shift values ​​may be configured by the network device for the terminal device using instruction information, or it may be a predefined value.

[0329] Optionally, the first comb offset set φ p m in p Of the ports, the m p j Port comb offset n p j However, the m p j k corresponding to the port TC p And, the m p j The index T of the cyclic shift group to which the cyclic shift value corresponding to the port belongs. j It is obtained based on k. TC p This is the total number of combs K composed of network devices. TC , N ap SRS , reference port comb offset ￣k TC , maximum cyclic shift value n RS cs,max , or the cyclic shift value n of the reference port in the p-th port group. SRS CS It is obtained based on at least one of the following: k TC p This may also be obtained by equation (3). In this case, the port p in equation (3) is the mth p j It may be replaced with the port of n. RS cs,max = 12. As shown in Figure 7(a1), Port 0, Port 1, Port 2, and Port 3 are a port group, and the first comb offset set of these port groups is φ p={0,1,2,3}. All CSs are divided into a total of four CS groups. CS group 1 has an index of 0 and includes CS 0, CS 1, and CS 2. CS group 2 has an index of 1 and includes CS 3, CS 4, and CS 5. CS group 3 has an index of 2 and includes CS 6, CS 7, and CS 8. CS group 4 has an index of 3 and includes CS 9, CS 10, and CS 11. CS 6 on port 0 belongs to the CS group with index 2. CS 9 on port 1 belongs to the CS group with index 3. CS 0 on port 2 belongs to the CS group with index 0. CS 3 on port 3 belongs to the CS group with index 1. Different ports included in a port group correspond to different CS group indices. Therefore, after CO hopping is enabled, different ports correspond to different comb offsets or comb offset steps at the same SRS transmission time. For example, based on CS group index 0, the CO corresponding to port 2 does not hop and remains CO 0. Based on CS group index 1, the CO corresponding to port 3 needs to hop to CO 1. Based on CS group index 2, the CO corresponding to port 0 needs to hop from CO 0 to CO 2. Based on CS group index 3, the CO corresponding to port 1 needs to hop from CO 0 to CO 3. The CS of the ports obtained through hopping is shown in Figure 7(a2). Similarly, before CO hopping is enabled, all COs in a port group are CO 1. The COs of the ports obtained through hopping based on the CS group to which the port belongs are shown in Figure 7(b2). The COs of the ports in Figures 7(a1) and (b1) are calculated according to equation (3). TC p This may also be the case. For example, in Figure 7(c1), port group 1 includes port 2 and port 0, and k TC 1 CO 1 is and CS 6 of port 0 in port group 1 is index T 1It belongs to CS group 2, and CS 0 on port 2 is index T 2 It belongs to the CS group of 0. The first comb offset set of port group 1 is φ1={1,2,3}, n1=3, T 1 Mod n1 (2 mod 3) is 2. Therefore, CO 3 may be obtained after port 0 has hopped only two COs. 2 Since mod n1 (0 mod 3) is 0, port 2 may not hop and is still CO 1. Therefore, the CO obtained through hopping between port 0 and port 2 is shown in Figure 7(c2). In Figure 7(c1), port group 2 includes port 1 and port 3, and k TC 2 CO 1 is and CS 9 of port 1 in port group 2 is index T 1 It belongs to CS group 3, and CS 3 on port 3 is index T 2 Port 1 belongs to CS group 1. The first comb offset set of port group 2 is φ2={0,1,2}. n1=3, and T1mod n1(3 mod 3) is 0. Therefore, port 1 does not hop and remains CO. T2mod n1(1 mod 3)() is 1, so port 3 hops only 1 CO and obtains CO 1. Thus, the COs of port 1 and port 3 obtained through hopping are shown in (c2) of Figure 7.

[0330] Optionally, the first comb offset set φ p m inside p Of the ports, the m p j Port comb offset n p j is, k TC p And, the m p j The cyclic shift group index T corresponding to the port. j Based on this, the following can be specifically obtained: The first comb offset set φ p m insidep Of the ports, the m p j Port comb offset n p j is, k TC p Based on T j This is obtained by performing a modulo operation on the first comb offset set φ. p The comb offset is inside, T j mod n p The comb offset corresponding to the value obtained through is the comb offset n p j It is determined as T j ga n p If it is larger, comb offset n p j This may be determined based on the modulo operation described above.

[0331] Optionally, the p-th port group is m p The first comb offset set φ includes the number of ports. p m inside p The comb offset of each port is the cyclic shift value n corresponding to that port. SRS CS,j It relates to n. SRS CS,j This may also be determined according to equation (6): the first comb offset set φ of each port in the p-th port group. pThe comb offset set within a port is related to the cyclic shift value of that port. Different ports within the p-th port group may belong to different cyclic shift values, and therefore different ports may have different comb offsets. Thus, the comb offsets used to transmit SRS by the p-th port group can be more random to help reduce interference. Different ports included in a port group correspond to different cyclic shift values. Therefore, after CO hopping is enabled, at the same SRS transmission time, different ports correspond to different comb offsets or comb offset steps. Optionally, the first comb offset set φ p m inside p The mth of the individual ports p j Port comb offset n p j However, k TC p And, the m p j The cyclic shift value n corresponding to the port. SRS CS,j It is obtained based on k. TC p This is the total number of combs K composed of network devices. TC , N ap SRS , reference port comb offset ￣k TC , maximum cyclic shift value n RS cs,max , or the cyclic shift value n of the reference port in the p-th port group. SRS CS It is obtained based on at least one of the following: k TC p This may be obtained according to equation (3). In this case, the port p in equation (3) is the m p j It may be replaced with the port. Comb offset n based on the cyclic shift value. p j The method for determining this is to calculate the comb offset n based on the cyclic shift group index. p jThis is similar to the method for obtaining [the desired result]. To avoid repetition, details will not be described in this embodiment of the present application.

[0332] In the above embodiment, the terminal device is the m p j The comb offset n is based on the cyclic shift group index corresponding to the port. p j You may request, or the network device may be the m p j The comb offset n is based on the cyclic shift group index corresponding to the port. p j You may also determine the following: Network devices and terminal devices divide the CS group in the same way and, in the same way, the comb offset n based on the cyclic shift group index. p j Determines the terminal device, p j Comb offset n based on the cyclic shift value corresponding to the port. p j You may request, or the network device may be the m p j Comb offset n based on the cyclic shift value corresponding to the port. p j You may also request this.

[0333] (b) The first comb offset set φ corresponding to the p-th port group p The nth p i The comb offset is the nth p i Corresponding to the comb offset step, the nth p i The comb offset step is the number of comb offset steps n p This corresponds to a second value generated based on [0, n], and the range of the second value is [0, n]. p -1]. Optionally, the second value may be a random value. Optionally, the terminal device is [0,np A random second value may be determined from -1, n p Each comb offset step corresponds to one value, and a second value can correspond to one comb offset step. Optionally, the nth p i The comb offset step is the number of comb offset steps n p The second value generated based on the following is specifically as follows: the nth p i Comb offset step k COH,i p (-1) b f(n SRS ) and f(n SRS ) is the second value, and the value of b is 0 or 1. Specifically, the terminal device determines the second value, and the nth p i Comb offset step k COH,i p (-1) b f(n SRS ) may be determined to be. Optionally, the protocol specifies that the value of b is 0, or that the value of b is 1. Optionally, a network device may configure the value of b to be 0, or a network device may configure the value of b to be 1. Optionally, the nth p i The comb offset step is not limited to being determined based on the second value. p The nth of the comb offset steps p i The comb offset step may be determined in an alternative way, for example, n corresponding to the p-th port group. p Each comb offset step may be indicated by a network device or by n corresponding to the pth port group. p The number of comb offset steps may be specified in the protocol. In this embodiment of the present application, n corresponds to the pth port group. pThe way in which the terminal device determines the number of comb offset steps is not limited. The network device may configure an initialization identity (ID) for the terminal device to generate a second value, and the terminal device generates the second value based on the initialization ID. Alternatively, the network device may generate the second value based on the initialization ID. In this way, the network device and the terminal device determine equal nth values ​​based on the second value. p i Determine the comb offset step. Optionally, the second value may further relate to one or more of the following: the slot index corresponding to the SRS transmission time, the OFDM symbol index corresponding to the SRS transmission time, the OFDM symbol offset corresponding to the SRS transmission time, the SRS transmission periodicity, the system frame index corresponding to the SRS transmission time, or the SRS repeat factor. For the generation of the second value, see the aforementioned f(n SRS Please refer to the explanation.

[0334] Specifically, the first comb offset set φ corresponds to the p-th port group. p One comb offset within corresponds to one comb offset step, and the terminal device obtains np comb offset steps, and the n p Individual comb offset steps and reference comb offset k TC,start p Based on this, a specific comb offset step used to determine the first comb offset may be determined. That is, in case 2, the terminal device determines the first comb offset set φ p n included p There is no need to sequentially determine the comb offset of each individual comb; the terminal device can determine n p We need to know about each comb offset step. Specifically, in Case 1, the first comb offset set φ p n included p Each comb offset is part of the first comb offset set φ pThis represents the first comb offset set φ. p n corresponding to p Each comb offset step is the first comb offset set φ p This represents the first comb offset set φ in Case 1 and Case 2. p Although it is expressed in a different form, case 2 is alternatively the first comb offset set φ p This implies that this could also be the case in Case 1. For example, n p The number of comb offset steps is 0, 1, 2, ..., n p The fact that it is -1, that is, that the value of b is 0, is the first comb offset set φ p but

number

number

[0335] Optionally, in (b), the terminal device corresponds to the first comb offset set φ of the p-th port group. p Transmitting an SRS based on at least one of the aforementioned comb offsets includes: The terminal device transmits an SRS based on the first comb offset set φ p The nth within p i Comb offset step k COH,i p , the reference comb offset k of the p port group TC,start p , or total number of combs K TCBased on at least one of the following, the first comb offset of the p-th port group is determined, where the comb number of all ports in the p-th port group is the first comb offset. Based on the first comb offset and the frequency domain resource offset, the terminal device determines the frequency domain start position to which the p-th port group is mapped. The terminal device transmits the SRS based on the frequency domain start position to which the p-th port group is mapped. Different reference comb offset k TC,start p Regarding this, the terminal device determines the first comb offset in a different way.

[0336] Optionally, the first comb offset set φ p This may correspond to the first comb offset step set. For example, the first comb offset step set is

number

number

number

number

[0337] Optionally, reference comb offset k TC,start p This is based on the parameters configured by the network device, for example, the total number of combs K configured by the network device. TC , N ap SRS , reference port comb offset ￣K TC , maximum cyclic shift value, n RS cs,max Alternatively, it is determined by the terminal device based on the cyclic shift value of the reference port in the p-th port group. For example, k TC,startp k is obtained by equation (3). TC p This may also be the case. In this case, p in equation (3) may represent the p-th port group. The terminal device is the first comb offset set φ p The nth p i Comb offset step k COH,i p , the reference comb offset k of the p port group TC,start p , or total number of combs K TC Determining the first comb offset of the p-th port group based on at least one of the following includes: If the terminal device determines that the first comb offset of the p-th port group is

number

number

number

number

number

[0338] Optionally, the reference comb offset k of the p-th port group. TC,start p If specified in the protocol or indicated by the network device, the first comb offset set φ p The nth p i Comb offset step k COH,i p , the reference comb offset k of the p port group TC,start p , or total number of combs K TC Determining the first comb offset of the p-th port group based on at least one of the following means that the first comb offset of the p-th port group is

number

number

[0339] Optionally, determining the frequency domain start position to which the p-th port group is mapped based on the first comb offset and frequency domain resource offset means that the frequency domain start position to which the p-th port group is mapped is

number

[0340] Optionally, determining the frequency domain start position to which the p-th port group is mapped based on the first comb offset and frequency domain resource offset is to set the frequency domain start position to which the p-th port group is mapped to (k TC,start p +k COH,i p ) mod K TC This includes determining that k offset l' It does not have to exist, and hopping is performed starting from the configured reference comb offset, for example, k TC,start p is 0; or, if CO hopping is not possible, the comb offset of the p-th port group is (k TC p +k COH,i p ) mod K TC In other words, the frequency domain start position to which the p-th port group is mapped is as follows:

number

[0341] Optionally, in (b), the network device in S510 corresponds to the first comb offset set φ of the p-th port group. p Receiving an SRS based on at least one of the aforementioned comb offsets includes: a network device receiving a first comb offset set φ p The nth within pi Comb offset step k COH,i p , the reference comb offset k of the p port group TC,start p , or total number of combs K TC Based on at least one of the following, the first comb offset of the p-th port group is determined, where the comb offset of all ports in the p-th port group is the first comb offset. Based on the first comb offset and the frequency domain resource offset, the network device determines the frequency domain start position to which the p-th port group is mapped. The network device transmits the SRS based on the frequency domain start position to which the p-th port group is mapped. The first comb offset set φ on the network device side. p This is the first comb offset set φ on the terminal device side. p It is the same as the network device being the first comb offset set φ p The method for determining the first comb offset is the same as the method by which the terminal device determines the first comb offset. To avoid repetition, details will not be explained. Reference comb offset k TC,start pHowever, if the first comb offset is determined by the terminal device based on parameters configured by the network device, specified in the protocol, or indicated by the network device, the method by which the network device determines the first comb offset is the same as the method by which the terminal device determines the first comb offset, and the method by which the network device maps to the frequency domain start position for receiving the SRS is the same as the method by which the terminal device maps to the frequency domain start position for transmitting the SRS. To avoid repetition, this embodiment of the present application will not be described in detail. That is, the network device and the terminal device determine the first comb offset in the same way and transmit the SRS in the same way based on the first comb offset. This ensures that the network device can receive the SRS transmitted by the terminal device.

[0342] (b) The first comb offset set φ corresponds to the p-th port group. p However, the nth p i This corresponds to the comb offset step. In some implementations, different ports within a group of p ports have different comb offset steps. This makes the COs occupied by ports transmitting SRS more random, thus reducing the probability of overlap between the COs occupied by ports transmitting SRS and the COs of terminal devices that do not support CO hopping, and thus reducing interference. (c) is described below.

[0343] (c) m in the p port group p The mth of the individual ports p j The nth port p j Corresponding to the comb offset step, the nth p j The comb offset step is the number of comb offset steps n pThis corresponds to a third value generated based on [0, n], and the range of the third value is [0, n]. p -1]. Optionally, the third value may be a random value. Optionally, the terminal device is [0,n p A third random value may be determined from -1, n p The nth of the comb offset steps p j The comb offset step corresponds to a third value. Optionally, the third value may further relate to one or more of the following: a slot index corresponding to an SRS transmission time, an OFDM symbol index corresponding to an SRS transmission time, an OFDM symbol offset corresponding to an SRS transmission time, SRS transmission periodicity, a system frame index corresponding to an SRS transmission time, or an SRS repeat factor.

[0344] Optionally, as with the third implementation of (a), the first comb offset set φ p m in p Each of the comb offsets of a port is associated with an index of the cyclic shift group to which the cyclic shift value corresponding to that port belongs, and the first SRS resource corresponds to T groups of cyclic shift values, and T groups of cyclic shift values ​​correspond to T cyclic shift group indices. In this case, n p The nth of the comb offset steps p j The fact that the comb offset step corresponds to the third value is specifically as follows: p j Comb offset step k COH,i p (-1) b [f(n SRS )+T j ] and T j is the m p j The index of the cyclic shift group to which the cyclic shift value corresponding to the port belongs, f(n SRS ) is the third value mentioned above, and the value of b is 0 or 1. f(n SRSFor the definition of ), please refer to the explanation of equations (7) to (9). j is a positive integer in the range of 0 to T-1.

[0345] Optionally, the first comb offset set φ p m p The comb offset of each individual port is the cyclic shift value n corresponding to that port. SRS CS,j Related to this, the first SRS resource is n srs CS,max Corresponds to individual cyclic shift values. Optionally, the first comb offset set φ p m in p The comb offset of each individual port is the cyclic shift value n corresponding to that port. SRS CS,j , the number of cyclic shift groups T, and the maximum cyclic shift value n srs CS,max It is associated with the nth. Optionally, the nth p j Comb offset step k COH,i p teeth,

number

[0346] Optionally, the protocol may specify that the value of b is 0; or the protocol may specify that the value of b is 1. Optionally, a network device may configure the value of b to be 0, or a network device may configure the value of b to be 1. Optionally, the nthp j The comb offset step is not limited to being determined based on a third value. Alternatively, n p The nth of the comb offset steps p j The comb offset step may be determined in a different form. For example, the comb offset step corresponding to each port in the p-th port group may be indicated by the network device, or the comb offset step corresponding to each port in the p-th port group may be specified in the protocol. The method by which the terminal device determines the comb offset step corresponding to each port group in the p-th port group is not limited to this embodiment of the present application. The network device may configure initialization identification information (identity, ID) for the terminal device to generate a third value, and the terminal device generates the third value based on the initialization ID. Or, the network device generates the third value based on the initialization ID. In this way, the network device and the terminal device are equal to the nth based on the third value. p j Determine the comb offset step.

[0347] Optionally, in (c), the terminal device receiving the SRS based on at least one comb offset in the first comb offset set φp corresponding to the p-th port group in S510 includes: the terminal device receiving the m-th p j The nth port corresponding to the port p j Comb offset step k COH,j p , mth p j Port reference comb offset k TC,start p , or total number of combs K TC Based on at least one of the following, the m p jDetermine the comb offset of the port. The terminal device is the m p j Based on the port comb offset and frequency domain resource offset, the m p j Determine the starting position of the frequency domain where the port is mapped. The terminal device is the m p j The port transmits SRS based on the frequency domain start position where it is mapped. p j is 1~m p It is a positive integer within the range of k. Different reference comb offset k TC,start p Regarding this, terminal devices are m in different ways p j Determine the comb offset of the port.

[0348] Optionally, reference comb offset k TC,start p This shall be determined by the terminal device based on the parameters configured by the network device. For example, k TC,start p The total number of combs K is composed of network devices. TC , N ap SRS , reference port comb offset ￣K TC , maximum cyclic shift value n RS cs,max , or obtained based on at least one of the cyclic shift values ​​of the reference port in the p-th port group. For example, k TC,start p k is obtained according to equation (3). TC p It may also be the terminal device, the m p j The nth port corresponding to the port p j Comb offset step k COH,j p , mth p j Port reference comb offset k TC,start p, or total number of combs K TC Based on at least one of the following, the m p j Determining the comb offset of the port includes the following: The terminal device is the m p j The comb offset of the port is

number

number

number

[0349] Optionally, the reference comb offset k of the p-th port group. TC,start p If specified in the protocol or indicated by the network device, then the m p j The nth port corresponding to the port p j Comb offset step k COH,j p , mth p j Port reference comb offset k TC,startp , or total number of combs K TC Based on at least one of the following, the m p j Determining the comb offset of the port is the first m p j The comb offset of the port is

number

number

[0350] Optionally, in (c), the network device corresponds to the first comb offset set φ in S510 which corresponds to the pth port group. p The step of receiving the SRS based on the aforementioned at least one comb offset within includes the following: The network device is the mp j The nth port corresponding to the port p j Comb offset step k COH,j p , mth p j Port reference comb offset k TC,start p , or total number of combs K TC Based on at least one of the following, the m p j Determine the comb offset of the port. The network device is the m p j Based on the port comb offset and frequency domain resource offset, the m p j Determines the starting position of the frequency domain where the port is mapped. The network device is the m p j The port receives the SRS based on the frequency domain start position to which it is mapped. p j is 1~m p It is a positive integer within the range of φ. The first comb offset set φ on the network device side. p This is the first comb offset set φ on the terminal device side. p It is the same as the network device being the first comb offset set φ p From the p-th port group, the m-th p j The method for determining the reference comb offset of a port is that the terminal device is the mth port in the pth port group. p j This is the same method as determining the reference comb offset of the port. Details will not be explained to avoid repetition. Reference comb offset k TC,start p However, if the terminal device is determined based on parameters configured by the network device, specified in the protocol, or indicated by the network device, then the network device is the mth in the pth port group. pj The method for determining the reference comb offset of a port is that the terminal device is the mth port in the pth port group. p j The method for determining the reference comb offset of the port is the same as the method for mapping the frequency domain start position for the network device to receive SRS, and the method for mapping the frequency domain start position for the terminal device to transmit SRS is the same as the method for mapping the frequency domain start position for the terminal device to transmit SRS. To avoid repetition, details are not described in this embodiment of the present application. That is, the network device and the terminal device are the same in the same way in the m port group of the p port. p j Determine the reference comb offset of the port, and in the same way, the m port in the p port group. p j The SRS is transmitted based on the reference comb offset of the port. This ensures that network devices can receive the SRS transmitted by the terminal device.

[0351] It should be noted that in this embodiment, the comb offset set for each port group can be of any form and is not limited to the cases described above. For example, the comb offsets included in the comb offset set for each port group are 0 to K. TC Any n in the range of -1 p It could be a comb offset.

[0352] Optionally, in the above method 500, the first comb offset set φ p This corresponds to the initial comb offset values ​​of the p-th port group and the first comb offset bias value set. That is, the first comb offset set φ pThis can be determined based on the initial comb offset value of the p-th port group and the first comb offset bias value set. For example, if the initial comb offset value of the p-th port group is 1 and the first comb offset bias value set is {0,1}, then the first comb offset set is {1,2}. Specifically, the terminal device is determined by the first comb offset set φ p The terminal device may transmit an SRS based on at least one comb offset value within the first set of comb offset values ​​φ, or it may transmit an SRS based on the initial comb offset value of the p-th port group and the first set of comb offset bias values. Alternatively, the terminal device may transmit an SRS based on the initial comb offset value of the p-th port group and the first set of comb offset bias values ​​φ p Determine the first comb offset set φ p An SRS may be transmitted based on at least one comb offset within the port group. Optionally, a terminal device transmitting an SRS based on an initial comb offset value for the p-th port group and a first comb offset bias value set includes: The terminal device selects a first comb offset bias value for the p-th port group from the first comb offset bias value set, determines a first comb offset value based on the initial comb offset value for the p-th port group and the first comb offset bias value for the p-th port group, and transmits an SRS based on the first comb offset value.

[0353] Optionally, the initial comb offset values ​​of all ports in the p-th port group may be equal, while the initial comb offset values ​​of different port groups may be different. Specifically, when partitioning ports, ports belonging to the same comb may be considered as one port group, and ports on different combs may be partitioned into different port groups. For example, as shown in Figure 8, the four ports corresponding to the first SRS resource are ports 0, 1, 2, and 3. Of these four ports, 0 and 2 are in port group 1, and 1 and 3 are in port group 2. As shown in diagram (a) of Figure 8, the initial comb offset value of port group 1 is 0, the initial comb offset value of port group 2 is 4, and the first comb offset bias value set is {0,1,2}. In this case, the comb offset set corresponding to port group 1 is {0,1,2}, and the comb offset set corresponding to port group 2 is {4,5,6}. For example, as shown in Figure 8(b), for the first SRS transmission opportunity, the CO of the port in port group 1 is CO1, and the CO of the port in port group 2 is CO5. As another example, as shown in diagram(c) of Figure 8, for the second SRS transmission opportunity, the CO of the port in port group 1 is CO2, and the CO of port group 2 is CO6.

[0354] Optionally, for an SRS transmission opportunity, the first comb offset bias values ​​of different port groups within the first comb offset bias value set may be the same or, of course, different. This is not limited to this embodiment of the present application.

[0355] The first comb offset bias value set will be explained below by dividing it into two cases.

[0356] Case 1: The comb offset bias values ​​in the first set of comb offset bias values ​​are consecutive.

[0357] Optionally, the first comb offset bias value set is L g,1 It includes a series of consecutive cyclic shift biases, where L g,1 It is 1 or greater, and the total number of combs is K. TC The following applies. For example, the first comb offset bias value set is {0,1,2}, and L g,1 It is 3. Specifically, the k-th comb bias value CO included in the first comb offset bias value set. p' k and the (k-1)th comb offset bias value C p' k-1 The difference is CO p' k -CO p' k-1 = 1. For example, CO2 - CO1 = 1. Note that the comb offset bias value L g,1 For -1 and a comb offset bias value of 0, it is also acceptable to consider the comb offset bias values ​​to be continuous.

[0358] Optionally, network devices are L g,1 It sends instruction information indicating that the terminal device is connected to the network device. g,1 The terminal device may receive instruction information indicating L g,1 It is possible to determine this.

[0359] Optionally, the first comb offset bias value set is {0, 1 mod K}. TC ,…,(L g,1 -1) mod K TC}, where mod is the modulo operation. The first comb offset bias value set is {0, 1 mod K}. TC ,…,(L g,1 -1) mod K TC If}, then the first comb offset set φ corresponds to the p-th port group. p This corresponds to the direction in which the comb offset increases, starting from the initial comb offset value of the p-th port group. The initial comb offset value of the p-th port group is k.TC p For details, please refer to the explanation above for equation (3). Details will not be explained to avoid repetition. Optionally, the initial comb offset value k of the p-th port group. TC p This may instead be represented by a network device. This is not limited to this embodiment of the present application.

[0360] Optionally, the first comb offset bias value set is {0, -1 mod K}. TC ,…,(-L g,1 +1) mod K TC}, where mod(·) is the modulo operation. The first comb-offset-bias value set is {0,-1 mod K}. TC ,…,(-L g,1 +1) mod K TC If}, then the first comb offset set φ corresponds to the p-th port group. p This is the initial comb offset value k of the p-th port group. TC p Starting from k, the comb offset corresponds to a decreasing direction. The initial comb offset value k of the p-th port group. TC p For details, please refer to the explanation above for equation (3). Details will not be explained to avoid repetition. Optionally, the initial comb offset value k of the p-th port group. TC p Alternatively, this may be represented by a network device. This is not limited to this embodiment of the present application.

[0361] Optionally, in Case 1, the terminal device is L g,1 and random function f(n SRS Based on the first comb offset bias value set, the first comb offset bias value n of the SRS transmission opportunity SRS comb,offsetThe starting position of the frequency domain to which the p-th port group is mapped may be determined based on the initial comb offset value of the p-th port group and the first comb offset bias value.

[0362] For example, the frequency domain start position to which the p-th port group is mapped is

number

[0363] n shift N SC RB This is the frequency domain resource offset, k offset l' This is the comb offset adjustment value, k TC p f(n) is the initial comb offset value for the p-th port group. SRS ) is a random function. See the explanation above. SRS comb,offset =f(n SRS ) mod L g,1 And here, L g,1 =K TC is or L g,1 n is a value configured by the network device, or a preset value. SRS comb,offset is the first comb offset bias value. Specifically, in a single SRS transmission opportunity, the first comb offset bias value is one comb offset bias value within the first comb offset bias value set. See the example shown in Figure 8. For example, in Figure 8(b), in an SRS transmission opportunity, the first comb offset bias value for port group 1 and port group 2 is 1. As another example, in diagram(c) of Figure 8, in a first SRS transmission opportunity, the first comb offset bias value for port group 1 and port group 2 is 2.

[0364] Optionally, a network device may configure combOffsetHoppingSubset. If a network device configures combOffsetHoppingSubset, L g,1 This is a value configured by the network device or a preset value. If the network device does not configure combOffsetHoppingSubset, L g,1 =K TC Specifically, the terminal device depends on whether the network device configures combOffsetHoppingSubset, L g,1 The value of can be determined. In various cases, L g,1 The value of can vary. If a network device configures combOffsetHoppingSubset, it indicates that CO subset hopping is enabled, and the network device can configure the number of comb offset bias values ​​included in a first comb offset bias value set, or the number of comb offset bias values ​​included in the first comb offset bias value set may be preset. If a network device does not configure combOffsetHoppingSubset, it indicates that CO subset hopping is disabled. This implies that the first comb offset bias value set can include all comb offsets.

[0365] Case 2: The comb offset bias values ​​included in the first set of comb offset bias values ​​are not consecutive.

[0366] Optionally, the first set of comb offset bias values ​​includes at least one subset of comb offset bias values, where the comb offset bias values ​​in each of the at least one subset are contiguous. Optionally, the at least one subset of comb offset bias values ​​are not contiguous. Specifically, the first set of comb offset bias values ​​may include multiple subsets, each of which is contiguous, and these subsets may not be contiguous.

[0367] Optionally, the comb offset bias value interval between any two adjacent comb offset bias value subsets of the at least one comb offset bias value subset is equal. Optionally, the comb offset bias value interval between two adjacent comb offset bias value subsets is greater than 1, for example, Δ''.

[0368] Optionally, all of the above at least one subset of comb offset bias values ​​contain an equal number of comb offset bias values. For example, all numbers are L g And here, L g is a positive integer greater than or equal to 1.

[0369] Optionally, the first comb offset bias value set contains G subsets of comb offset bias values, where G is greater than 1 or K TC It is a smaller positive integer.

[0370] Optionally, the first comb offset bias value set is the total number of combs K. TC Δ'' is the comb offset bias value interval between any two adjacent comb offset bias value subsets, and L is the number of comb offset bias values ​​contained in each comb offset bias value subset. g It can be obtained based on this.

[0371] Arbitrarily, the g-th comb-off-bias value subset of G comb-off-bias value subsets is {Δ g mod K TC , (Δ g +1) mod K TC ,…,(Δ g +L g -1) mod K TC}. Here, Δ0=0, Δ g =Δ"·g, where g=0,1,…,G-1, and Δ" is the comb offset bias value interval between any two adjacent comb offset bias value subsets, K TC This is the total number of combs, L g This is the number of comb offset bias values ​​included in the g-th comb offset bias value subset,

number

[0372] Arbitrarily, the g-th comb-off-bias value subset of G comb-off-bias value subsets is {-Δ g mod K TC , (-Δ g -1) mod K TC ,…,(-Δ g -L g +1) mod K TC}. Here, Δ0=0, Δ g =Δ"·g, where g=0,1,…,G-1, and Δ" is the comb offset bias value interval between any two adjacent comb offset bias value subsets, K TCThis is the total number of combs, L g This is the number of comb offset bias values ​​included in the g-th comb offset bias value subset,

number

[0373] Optionally, L is the number of comb offset bias values ​​included in each comb offset bias value subset. g G is the number of comb offset bias value subsets, and L is the number of comb offset bias values ​​included in the first comb offset bias value subset. g,1 There is a relationship between them. Network devices are L g , G or L g,1 Two of these can be configured. The terminal device is configured based on the two items configured by the network device. g , G or L g,1 One of the remaining ones can be determined. For example, the network device is L g and L g,1 The terminal device may be configured as L g and L g,1 Based on this, obtain G. Or, the network device is G and L g,1 The terminal device may be configured as G and L g,1 Based on L g It is possible to obtain the above association, L g × G=L g,1 That's fine.

[0374] Optionally, total number of combs K TC A relationship exists between the number of comb offset bias value subsets G and the comb offset bias value interval Δ" between any two adjacent comb offset bias value subsets. Network devices are K TCIt can be configured with two of the following: G or Δ". The terminal device is configured with K based on the two items configured by the network device. TC , it is possible to determine one of the remaining two, G or Δ''. For example, a network device may have Δ'' and K TC The terminal device may be configured as Δ'' and K TC Based on this, G is obtained. Alternatively, the network device obtains G and K TC The terminal device is configured as K TC And Δ" can be obtained based on G. For example, the aforementioned relationship is K TC =Δ"·G is also acceptable.

[0375] Optionally, in Case 1, the terminal device is N ap SRS Of the ports, the number of ports on the same cyclic shift can be determined as G. For example, as shown in Figure 8, of the four ports, ports 0 and 1 are on CS 0, and ports 2 and 3 are on CS 3. That is, two ports occupy one CS. Therefore, for Figure 8, the terminal device may determine that the number G is 2. In this case, G is N. ap,cs SRS You can replace it with this.

[0376] Optionally, in Case 2, G corresponds to N, which is the first SRS resource. ap SRS This is the number of different comb offsets occupied by each port. For example, as shown in Figure 8, ports 0 and 2 occupy CO 1, and ports 1 and 3 occupy CO 4. Thus, the four ports occupy a total of two outputs, and the terminal device may determine that G is 2. In this case, G is N ap,diffcomb SRS You can replace it with this.

[0377] Optionally, in Case 3,

number

[0378] When the terminal device determines G according to any of the above cases 1, 2, or 3, specifically,

number

[0379] Next, from the first set of comb offset bias values, we obtain the first comb offset bias value n of the p-th port group. SRS comb,offset The following describes six methods for determining the first comb offset bias value n. A network device or protocol may specify one of the following six methods to be used by a terminal device. Alternatively, there may be a priority relationship between the six methods, and the terminal device may use the first comb offset bias value n. SRS comb,offset A higher-priority method may be selected to determine the first comb offset bias value n, based on the implementation of the terminal device.SRS comb,offset You may choose one of the six methods for determining this.

[0380] Method 1: The terminal device is L g,1 and random function f(n SRS Based on the first comb offset bias value n SRS comb,offset You may decide that.

[0381] For example, n SRS comb,offset =S(f(n SRS ) mod L g,1 ) = f(n SRS ) mod L g,1 Here, L g,1 =K TC That is the case.

[0382] Optionally, if the network device does not configure combOffsetHoppingSubset, the first comb offset bias value n SRS comb,offset This may be determined by method 1. Specifically, if the network device does not enable CO subset hopping, and the first comb offset bias value set can include all combs, then the terminal device, L g,1 and random function f(n SRS Based on the first comb offset bias value n SRS comb,offset You may decide that.

[0383] The terminal device uses a different formula, L g,1 and random function f(n SRS Based on the first comb offset bias value n SRS comb,offset It is understood that it may be determined that. In this embodiment of the present application, the terminal device is L g,1 and random function f(n SRS Based on the first comb offset bias value n SRS comb,offsetThe method for determining this is not limited, and the formula for Method 1 can be modified in any way.

[0384] Method 2: The terminal device is L g,1 G, random function f(n SRS ), and K TC Based on this, the first comb offset bias value n SRS comb,offset You may decide that.

[0385] for example,

number

number

[0386] Optionally, if a network device configures combOffsetHoppingSubset, the first comb offset bias value n SRS comb,offset This may be determined by method 2. Specifically, if the network device enables CO subset hopping, the terminal device will be L g,1 G, random function f(n SRS ), and K TC Based on this, the first comb offset bias value n SRS comb,offset It is possible to make a decision.

[0387] Optionally, L g,1 If L is not divisible by G, g,1 / G can be replaced with the following:

number

[0388] Optionally, L g,1 G may be a positive integer multiple of G.

[0389] Terminal devices are L g,1 , G, random function f(nSRS), and K TC Based on this, the first comb offset bias value n is calculated using a different formula. SRS comb,offset It is understood that it may be determined that. In this embodiment of the present application, the terminal device is L g,1 G, random function f(n SRS ), and K TC Based on this, the first comb offset bias value n SRS comb,offset The method for determining this is not limited, and the formula for method 2 can be modified in any way.

[0390] Method 3: The terminal device is S g , f(n SRS ), L g,1 , G and K TC Based on this, the first comb offset bias value n SRS comb,offset You may decide that.

[0391] for example,

number

[0392] Optionally, if the network device configures combOffsetHoppingSubset, the first comb offset bias value n SRS comb,offset This may be determined by method 3. Specifically, if the network device has enabled CO subset hopping, the terminal device is S g , f(n SRS ), L g,1Based on G, the first comb offset bias value n SRS comb,offset You may decide that.

[0393] Terminal devices include Sg, f(n SRS ), L g,1 , G and K TC Based on this, the first comb offset bias value n is calculated using a different formula. SRS comb,offset It is understood that it may be determined that. In this embodiment of the present application, the terminal device is S g , f(n SRS ), L g,1 , G and K TC Based on this, the first comb offset bias value n SRS comb,offset The method for determining this is not limited, and the formula for method 3 can be modified in any way.

[0394] Method 4: The terminal device is f(n SRS ) and K TC Based on this, the first comb offset bias value n SRS comb,offset You may decide that.

[0395] For example, n SRS comb,offset =f(n SRS ) mod K TC That is the case.

[0396] Optionally, if the network device does not configure combOffsetHoppingSubset, the first comb offset bias value n in Method 4 SRS comb,offset It may be determined that if the network device does not enable CO subset hopping, and the first comb offset bias value set can include all combs, then the terminal device will determine f(n SRS ) and K TC Based on this, the first comb offset bias value n SRS comb,offset You may decide that.

[0397] The terminal device is f(n SRS ) and K TC Based on this, the first comb offset bias value n is calculated using a different formula. SRS comb,offset It is understood that it may be determined that f(n SRS ) and K TC Based on this, the first comb offset bias value n SRS comb,offset The method for determining this is not limited, and the formula for method 4 can be modified in any way.

[0398] Method 5: The terminal device is f(n SRS ), L g,1 , G and K TC Based on this, the first comb offset bias value n SRS comb,offset It is possible to make a decision.

[0399] for example,

number

[0400] Optionally, if a network device configures combOffsetHoppingSubset, the first comb offset bias value n SRS comb,offset This can be determined by method 5. Specifically, if the network device enables CO subset hopping, the terminal device will have f(n SRS ), L g,1 , G and K TC Based on this, the first comb offset bias value n SRS comb,offset It is possible to make a decision.

[0401] Optionally, L g,1If it is not divisible by G, then L g,1 / G can be replaced with the following:

number

[0402] Optionally, L g,1 G may be a positive integer multiple of G.

[0403] The terminal device is f(n SRS ), L g,1 , G and K TC Based on this, using another formula, the first comb offset bias value n SRS comb,offset It is understood that it may be determined that f(n SRS ), L g,1 , G and K TC Based on this, the first comb offset bias value n SRS comb,offset The method for determining this is not limited, and the formula in method 5 can be modified in any way.

[0404] Method 6: The terminal device is f(n SRS ), L g,1 S g , G and K TC Based on this, the first comb offset bias value n SRS comb,offset You may decide that.

[0405] for example,

number

[0406] Optionally, if a network device configures combOffsetHoppingSubset, a first comb offset bias value n SRS comb,offsetThis may be determined by method 6. Specifically, if the network device enables CO subset hopping, the terminal device will determine f(n SRS ), L g,1 S g , G and K TC Based on this, the first comb offset bias value n SRS comb,offset You may decide that.

[0407] The terminal device is f(n SRS ), L g,1 S g , G and K TC It is understood that, based on this, the first comb offset bias value may be determined using a different formula. In this embodiment of the present invention, the terminal device is f(n SRS ), L g,1 S g , G and K TC Based on this, the first comb offset bias value n SRS comb,offset The method for determining this is not limited, and the formula in Method 6 may be modified arbitrarily.

[0408] Optionally, the first comb offset bias value n is determined using one of the six methods described above. SRS comb,offset After determining the first comb offset bias value n, the terminal device determines the first comb offset bias value n. SRS comb,offset Based on this, the frequency domain start position to which the p-th port group is mapped

number

[0409] Optionally, depending on the circumstances, network devices may use Δ or

number

number

number

[0410] Method 1: The terminal device is L g,1 and random function f(n SRS Based on the first comb offset bias value n SRS comb,offset You may decide that.

[0411] For example, n SRS comb,offset =S(f(n SRS ) mod Lg,1 ) = f(n SRS ) mod L g,1 Here, L g,1 =K TC That is the case.

[0412] Optionally, if the network device does not configure combOffsetHoppingSubset, the first comb offset bias value n SRS comb,offset This may be determined by method 1. Specifically, if the network device does not enable CO subset hopping, and the first comb offset bias value set can include all combs, then the terminal device, L g,1 and random function f(n SRS Based on the first comb offset bias value n SRS comb,offset You may decide that.

[0413] The terminal device uses a different formula, L g,1 and random function f(n SRS Based on the first comb offset bias value n SRS comb,offset It is understood that it may be determined that. In this embodiment of the present application, the terminal device is L g,1 and random function f(n SRS Based on the first comb offset bias value n SRS comb,offset The method for determining this is not limited, and the formula for Method 1 can be modified in any way.

[0414] Method 2: The terminal device is L g,1 Δ'', random function f(n SRS ), and K TC Based on this, the first comb offset bias value n SRS comb,offset You may decide that.

[0415] for example,

number

[0416] Optionally, L g,1 ×Δ" is K TC If it is not divisible by (L g,1 ×Δ") / K TC Alternatively, it may be replaced with the following:

number

[0417] Optionally, L g,1 ×Δ" is K TC It may also be a positive integer multiple of .

[0418] Optionally, if the network device configures combOffsetHoppingSubset, the first comb offset bias value n SRS comb,offset This can be determined by method 2. Specifically, if the network device has enabled CO subset hopping, the terminal device will be L g,1 Δ'', random function f(n SRS ), and K TC Based on this, the first comb offset bias value n SRS comb,offset It is possible to make a decision.

[0419] Method 3: The terminal device is S g , f(n SRS ), L g,1 Based on G and Δ'', the first comb offset bias value n SRS comb,offset It is possible to make a decision.

[0420] for example,

number

[0421] Optionally, if the network device configures combOffsetHoppingSubset, the first comb offset bias value n SRS comb,offset This can be determined by method 3. Specifically, if the network device has enabled CO subset hopping, the terminal device will be S g , f(n SRS ), L g,1 Based on G and Δ'', the first comb offset bias value n SRS comb,offset It is possible to make a decision.

[0422] Method 4: The terminal device is f(n SRS ) and K TC Based on this, the first comb offset bias value n SRS comb,offset It is possible to make a decision.

[0423] For example, n SRS comb,offset =f(n SRS ) mod K TC That is the case.

[0424] Optionally, if the network device does not configure combOffsetHoppingSubset, the first comb offset bias value n SRS comb,offset This may be determined by method 4. Specifically, if the network device does not enable CO subset hopping, and the first comb offset bias value set can include all combs, then the terminal device determines f(n SRS ) and K TC Based on this, the first comb offset bias value n SRS comb,offset You may decide that.

[0425] The terminal device is f(n SRS ) and K TC Based on this, the first comb offset bias value n is calculated using a different formula. SRS comb,offset It is understood that it may be determined that f(n SRS ) and K TC Based on this, the first comb offset bias value n SRS comb,offset The method for determining this is not limited, and the formula for method 4 can be modified in any way.

[0426] Method 5: The terminal device is f(n SRS ), L g,1 , Δ'' and K TC Based on this, the first comb offset bias value n SRS comb,offset You may decide that.

[0427] for example,

number

[0428] Optionally, if a network device configures combOffsetHoppingSubset, the first comb offset bias value n SRS comb,offset This may be determined by method 5. Specifically, if the network device enables CO subset hopping, the terminal device will determine f(n SRS ), L g,1 , Δ'' and K TC and based on the first comb offset bias value n SRS comb,offset You may decide that.

[0429] Optionally, L g,1 ×Δ" is K TC If it is not divisible by (Lg,1 ×Δ" / K TC This may be replaced by the following:

number

[0430] Optionally, L g,1 ×Δ" is K TC It may also be a positive integer multiple of .

[0431] The terminal device is, f(n SRS ), L g,1 , Δ'' and K TC Based on and the first comb offset bias value n, using another formula SRS comb,offset It is understood that it may be determined that f(n SRS ), L g,1 , Δ'' and K TC Based on this, the first comb offset bias value n SRS comb,offset The method for determining this is not limited, and the formula for method 5 can be modified in any way.

[0432] Method 6: The terminal device is f(n SRS ), L g,1 S g And the first comb offset bias value n based on Δ'' SRS comb,offset You may decide that.

[0433] for example,

number

[0434] Optionally, if a network device configures combOffsetHoppingSubset, a first comb offset bias value n SRS comb,offset This may be determined by method 6. Specifically, if the network device enables CO subset hopping, the terminal device will determine f(n SRS ), L g,1 S g And the first comb offset bias value n based on Δ'' SRS comb,offset You may decide that.

[0435] The terminal device is f(n SRS ), L g,1 S g Based on Δ'', the first comb offset bias value n is calculated using a different formula. SRS comb,offset It is understood that it may be determined that f(n SRS ), L g,1 S g And the first comb offset bias value n based on Δ'' SRS comb,offset The method for determining this is not limited, and the formula for method 6 can be modified in any way.

[0436] Optionally, the first comb offset bias value n is determined using one of the six methods described above. SRS comb,offset After determining the first comb offset bias value n, the terminal device determines the first comb offset bias value n. SRS comb,offset Based on this, the frequency domain start position to which the p-th port group is mapped

number

[0437] The first comb offset set φ described above p This corresponds to the initial comb offset value of the p-th port group and the first comb offset bias value set. Specifically, the first comb offset bias value set may be combined with method 500, or the first comb offset bias value set may be an independent embodiment. Below, a solution for the case where the first comb offset bias value set functions as an independent embodiment will be briefly described. In the independent embodiment solution, the above description of the p-th port group is N ap SRS It may be replaced with the i-th port among the ports. That is, N ap SRS The individual ports do not necessarily have to be divided into groups. The terminal device corresponds to N of the first SRS resources. ap SRS The SRS may be transmitted based on the initial comb offset value of the i-th port among the ports and the first comb offset bias value of the i-th port in the first comb offset bias value set, where i is 1 to N. ap SRS It is a positive integer of . That is, for each port, an SRS may be transmitted based on the initial comb offset value of that port and the first comb offset bias value of that port in the first comb offset bias value set. That is, in this solution, in method 500, N ap SRS =P. If the first comb offset bias value set may be an alternative independent embodiment, then the n obtained in the above schemes is SRS comb,offset However, it may also be the first comb offset bias value of the i-th port in the first comb offset bias value set. The terminal device has a first comb offset bias value n SRS comb,offsetBased on this, the frequency domain start position of the i-th port

number

[0438] In one possible implementation, interference between SRS sequences is randomized through cyclic shift hopping (CS hopping) to solve interference problems, and a good interference randomization effect can be achieved by randomizing interference between SRS sequences through CS hopping. However, in actual application scenarios, there are both terminal devices that support CS hopping and terminal devices that do not support CS hopping. In this application, a terminal device that supports CS hopping is a terminal device that can randomize interference between SRS sequences through CS hopping. That is, a terminal device that supports CS hopping has the ability or function to randomize interference between SRS sequences through CS hopping. In this application, a terminal device that does not support CS hopping is a terminal device that cannot randomize interference between SRS sequences through CS hopping. That is, a terminal device that does not support CS hopping does not have the ability or function to randomize interference between SRS sequences through CS hopping. When a network device configures SRS ports corresponding to terminal devices that support CS hopping and SRS ports corresponding to terminal devices that do not support CS hopping on the same CS for multiplexing, the channel estimation performance of both terminal devices may be significantly reduced. Therefore, the urgent issue to be resolved is how to avoid the degradation of channel estimation performance in the above case while making the most of the interference randomization effect of cyclic shift hopping. In CS hopping mode, the CS range in which the ports of the terminal device for transmitting SRS perform CS hopping is the same. For example, as shown in Figure 10, the SRS resource of the UE corresponds to four ports: port 0, port 1, port 2, and port 3. The CS range in which ports 0, port 1, port 2, and port 3 perform CS hopping may be {CS0, CS1, CS2, CS3, CS4, CS5, CS6, CS7, CS8, CS9, CS10, CS11}. The CS of port 0 is CS 6, the CS of port 2 is CS 0, the CS of port 3 is CS 3, and the CS of port 1 is CS 9.The CSs of the UE ports that do not support CS hopping are CS 2, CS 5, CS 5, and CS 11. All four of these ports may move two CSs to the right. After the move, the CS of port 0 becomes CS 8, the CS of port 1 becomes CS 11, the CS of port 2 becomes CS 2, and the CS of port 3 becomes CS 5. Therefore, the CSs of these ports obtained through hopping overlap with the CSs occupied by the UE that does not support CS hopping, and CS transmission is affected.

[0439] In other words, in the above implementation, the CS (Communication Standard) that hops between ports used by terminal devices to transmit SRS is the same in order to reduce interference. Therefore, the CS obtained through hopping overlaps with the CS of UEs that do not support CS hopping, and SRS transmissions of UEs that do not support CS hopping are affected.

[0440] In this application, the CS range for which a port used by a terminal device to transmit an SRS performs CS hopping may be at least one set of CS, each of which does not include CS of a UE port that does not support CS hopping. In this way, when a CS for hopping is selected from the at least one set of CS for a port used by a terminal device to transmit an SRS, CS of a UE port that does not support CS hopping are not selected, thereby reducing interference. The following describes a communication method in an embodiment of this application with reference to Figure 11. As shown in Figure 11, the communication method 900 includes the following steps.

[0441] S910: The terminal device selects N from a set of Q cyclic shift values ​​that correspond to the first SRS resource. ap SRS Determine the cyclic shift value for each of the ports. Here, N ap SRS Q is a positive integer, and Q is greater than 1 and N ap SRS The following are positive integers:

[0442] Optionally, N ap SRS It may be configured by a network device for terminal devices.

[0443] Optionally, Q sets of cyclic shift values ​​may constitute a set of cyclic shift values ​​that support CS hopping. Specifically, N ap SRS Each of these ports may determine its cyclic shift value from a set of cyclic shift values ​​that support CS hopping.

[0444] Optionally, all Q sets of cyclic shift values ​​contain an equal number of cyclic shift values, all of which are L1. That is, all sets of cyclic shift values ​​have equal lengths. Optionally, a network device may send a fourth instruction to a terminal device, and a terminal device may receive a fourth instruction from the network device. The fourth instruction indicates that the number of cyclic shift values ​​in each of the Q sets of cyclic shift values ​​is L1. L1 is greater than or equal to 1, and the maximum cyclic shift value is n. RS cs,max The following are positive integers. Alternatively, L1 is 1 or greater, and the maximum cyclic shift value is n. RS cs,max / Q is less than or equal to / Q. Optionally, L1=1 indicates that each of the Q cyclic shift value sets has a length of 1. Specifically, each cyclic shift value set contains one CS. This also indicates that CS hopping is not performed or is disabled. L1 is greater than 1 n RS cs,max Being a smaller integer indicates that there is a set of cyclic shift values ​​of length greater than 1. This also indicates that CS hopping is performed. Method 900 may be performed if CS hopping is performed or enabled. Otherwise, method 900 does not need to be performed.

[0445] In some embodiments, a network device may send instruction information to a terminal device indicating whether CS hopping is performed, and the terminal device may decide whether to perform CS hopping based on that instruction information. For example, the instruction information may be the number of cyclic shift values ​​L1 included in each set of cyclic shift values, and whether CS hopping is performed is implicitly indicated by the number of cyclic shift values ​​L1. The number of cyclic shift values ​​included in each set of cyclic shift values ​​= 1 indirectly indicates that CS hopping is not performed. The number of cyclic shift values ​​L1 included in each set of cyclic shift values ​​is greater than 1, and n RS cs,max Being less than this indirectly indicates that CS hopping will not occur.

[0446] Optionally, in some possible implementations, N corresponds to the target SRS resource. ap SRS Each port corresponds to either a set of cyclic shift values ​​that supports CS hopping or a set of cyclic shift values ​​that does not support CS hopping. The number of cyclic shift value sets included in the set of cyclic shift value sets that supports CS hopping is called the length L1 of the area that supports CS hopping. The number of cyclic shift value sets included in the set of cyclic shift value sets that does not support CS hopping is called the length L2 of the area that does not support CS hopping. The set of cyclic shift value sets that supports CS hopping and the set of cyclic shift value sets that do not support CS hopping are equivalent. Specifically, the union of the set of cyclic shift value sets that support CS hopping and the set of cyclic shift value sets that do not support CS hopping is {0, 1, ..., n SRS cs,max -1} is true. L1 + L2 = n SRS cs,max For example, n SRS cs,max= 12, the set of cyclic shift values ​​that supports CS hopping is {0, 1, 3, 4, 6, 7, 9, 10}, the set of cyclic shift values ​​that does not support CS hopping is {2, 5, 8, 11}, and the union of the set of cyclic shift values ​​that supports CS hopping and the set of cyclic shift values ​​that does not support CS hopping is {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}. In this embodiment of the present application, the set of cyclic shift values ​​that supports CS hopping will be explained as an example.

[0447] Optionally, the cyclic shift values ​​in any two adjacent sets of Q cyclic shift value sets are not consecutive. Specifically, there is a gap between the values ​​in any two adjacent sets of Q cyclic shift value sets, and that gap is greater than 1. The gap between the values ​​in two adjacent sets of cyclic shift value sets can be understood as the difference between the first cyclic shift value in the (k+1)th cyclic shift value set and the last cyclic shift value in the kth cyclic shift value set, assuming that the cyclic shift values ​​in each set are sorted in ascending order of value. Optionally, the gap Δ between the values ​​in any two adjacent sets of Q cyclic shift value sets is equal. Optionally, the equality of the gaps between the values ​​in any two adjacent sets of Q cyclic shift value sets can be understood as follows: the gap between corresponding cyclic shift values ​​in any two adjacent sets of cyclic shift value sets is equal. For example, the gap between the first cyclic shift values ​​in any two adjacent sets of cyclic shift value sets is equal. For example, the first set of cyclic shift values ​​is {0,1}, the second set of cyclic shift values ​​is {3,4}, the third set of cyclic shift values ​​is {6,7}, and the fourth set of cyclic shift values ​​is {9,10}. In this case, the interval between the first set of cyclic shift values ​​{0,1} and the second set of cyclic shift values ​​{3,4} is 3 CS, the interval between the second set of cyclic shift values ​​{3,4} and the third set of cyclic shift values ​​{6,7} is 3 CS, and the interval between the third set of cyclic shift values ​​{6,7} and the fourth set of cyclic shift values ​​{9,10} is 3 CS.

[0448] Optionally, in some embodiments, the cyclic shift values ​​included in any two adjacent sets of cyclic shift values ​​among the Q sets of cyclic shift values ​​may be contiguous.

[0449] For the definition of equal spacing between corresponding cyclic shift values ​​in any two adjacent sets of cyclic shift values, please refer to the previously stated definition of equal spacing between any two adjacent comb offset subsets. To avoid repetition, further details will not be provided.

[0450] Arbitrarily, the cyclic shift values ​​contained in each of the Q sets of cyclic shift values ​​are consecutive. Specifically, the interval between two adjacent cyclic shift values ​​in each set of cyclic shift values ​​is 1. For example, as shown in Figure 10, the first set of cyclic shift values ​​is {0,1}, the second set is {3,4}, the third set is {6,7}, and the fourth set is {9,10}. In this case, the cyclic shift values ​​in each set of cyclic shift values ​​are consecutive. For the definition of adjacent cyclic shift values ​​being consecutive, please refer to the definition of any two adjacent comb offset sets mentioned above. To avoid repetition, the details will not be explained.

[0451] Optionally, the CS set supporting CS hopping may be a subset containing some of the Q cyclic shift value sets. That is, if there are Q cyclic shift value sets, CS hopping may be performed on a subset containing some of the Q cyclic shift value sets.

[0452] Optionally, the Q sets of cyclic shift values ​​may be specified in the protocol or configured by the network device.

[0453] Optionally, the q-th set of cyclic shift values ​​among Q sets of cyclic shift values ​​is the starting cyclic shift value n CS startΔ, the interval between any two adjacent sets of cyclic shift values, L1 the number of comb shifts in the q-th set of cyclic shift values, or the maximum cyclic shift value n RS cs,max It is determined based on at least one of the following: the terminal device is determined by the starting cyclic shift value n CS start Δ, the interval between any two adjacent sets of cyclic shift values, L1 the number of comb shifts in the q-th set of cyclic shift values, or the maximum cyclic shift value n RS cs,max The q-th set of cyclic shift values ​​may be determined based on at least one of the following: where the cyclic shift value interval between any two adjacent sets of cyclic shift values ​​is Δ, q is a positive integer in the range of 1 to Q, and the starting cyclic shift value corresponding to each of the Q sets of cyclic shift values ​​is n. CS start Specifically, the network device optionally sets the starting cyclic shift value to n. CS start , the cyclic shift value interval Δ between any two adjacent sets of cyclic shift values, or the maximum cyclic shift value n RS cs,max At least one of the following may be shown to the terminal device. Optionally, the starting cyclic shift value n CS start This may be indicated by a network device, specified in a protocol, or determined based on parameters configured by a network device. For example, n CS start n is determined according to equation (6). SRS CS,i This may also be the case. Optionally, q and the starting cyclic shift value n. CS start , the cyclic shift value interval Δ between any two adjacent sets of cyclic shift values, or the maximum cyclic shift value n RS cs,max Based on at least one of the following, the set of cyclic shift values ​​for the qth is obtained. Optionally, the set of cyclic shift values ​​for the qth is:

number

[0454] Optionally, the terminal device selects N from one of the Q sets of cyclic shift values. ap SRS The cyclic shift value of a reference port among the ports is determined, and the terminal device then performs N based on the cyclic shift value of the reference port. ap SRS The cyclic shift values ​​of the other ports among these ports may be determined. For example, the reference port is N ap SRSIt may be the first of the 10 ports, and the first port may be understood as the port with the smallest CS. For example, as shown in Figure 10, Q=4, the first set of cyclic shift values ​​is {0,1}, the second set of cyclic shift values ​​is {3,4}, the third set of cyclic shift values ​​is {6,7}, the fourth set of cyclic shift values ​​is {9,10}, and the reference port is port 2. For example, the cyclic shift value of port 2 is determined to be CS 1. Since the two adjacent ports are separated by 3 CS, the cyclic shift value of port 3 is CS 4, the cyclic shift value of port 0 is CS 7, and the cyclic shift value of port 1 is CS 10.

[0455] Optionally, N ap SRS The variation in the cyclic shift value of all ports (this variation is also called the step relative to the reference cyclic shift value of each port) may be the same. For example, if port 1 hops from the first cyclic shift value to the second cyclic shift value, and port 2 hops from the third cyclic shift value to the fourth cyclic shift value, then cyclic shift value interval 1 is the same as cyclic shift value interval 2. Here, cyclic shift value interval 1 is the cyclic shift value interval between the second cyclic shift value and the first cyclic shift value, and cyclic shift value interval 2 is the cyclic shift value interval between the fourth cyclic shift value and the third cyclic shift value. For example, as shown in Figure 10, the reference cyclic shift value of port 2 is CS 0, the reference cyclic shift value of port 3 is CS 3, the reference cyclic shift value of port 0 is CS 6, and the reference cyclic shift value of port 1 is CS 9. If the cyclic shift value variation for port 2 is 1, then port 2 needs to hop from CS 0 to CS 1, port 3 needs to hop from CS 3 to CS 4, port 0 needs to hop from CS 6 to CS 7, and port 1 needs to hop from CS 9 to CS 10.

[0456] The following is for terminal devices N ap SRS The cyclic shift value α of the i-th port out of the given ports. iWe will explain two case scenarios for determining this.

[0457] Case 1: The terminal device has a maximum cyclic shift value n SRS cs,max L1 is the length of each cyclic shift set, Q is the number of cyclic shift sets, and n is the initial cyclic shift value of the i-th port. SRS CS,i or n SRS CSH Based on at least one of the following, N ap SRS The cyclic shift value of the i-th port among the ports is α i It may be decided that n SRS CS,i This is the cyclic shift value used when CO hopping is not performed. For example, n SRS CS,i This can also be obtained by equation (6).

[0458] Optionally, α i This can also be obtained by equation (10).

number

[0459] In equation (10), n SRS CSH =(-1) b f(n SRS ) and the value of b is 0 or 1, and f(n SRS ) is a value generated based on a random number sequence. f(n SRS The range of values ​​for ) is [0, QL1-1], or f(n SRS The range of values ​​of ) may be a subset of [0, QL1-1]. For example, if Q is greater than 2, then f(n SRS The range of values ​​for f(n) may also be [0, L1-1] or [0, 2L1-1]. SRS For the definition of ), please refer to the description of the embodiments above. The difference from the above embodiments is that f(n SRS The key difference is that the modulo operation is performed on L1. For example,

number

[0460] Case 2: The terminal device has a maximum cyclic shift value n SRS cs,max L1 is the length of each cyclic shift set, Q is the number of cyclic shift sets, and n is the initial cyclic shift value of the i-th port. CS start , or n SRS CSH Based on at least one of the following, N ap SRS The cyclic shift value of the i-th port among the ports is α i It may be decided that this is the case. CS start This may be defined in the protocol or indicated by the network device.

[0461] Optionally, the cyclic shift value α of the i-th port. i This can be found according to equation (11).

number

[0462] In equation (11), n SRS CSH =(-1) b f(n SRS ) and the value of b is 0 or 1, and f(n SRS ) is a value generated based on a random number sequence. f(n SRS The range of values ​​for ) is [0, QL1-1], or f(n SRS The range of values ​​of ) may be a subset of [0, QL1-1]. For example, if Q is greater than 2, then f(n SRS The range of values ​​for f(n) may also be [0, L1-1] or [0, 2L1-1]. SRS For the definition of ), please refer to the description of the embodiments above. The difference from the above embodiments is that f(nSRS The key difference is that the modulo operation is performed on L1. For example,

number

[0463] n CS start If is 0, then equation (11) is transformed into the following equation:

number

[0464] For example, as shown in Figures 12(a) to 12(h), Q = 4, arbitrarily. The four sets of cyclic shift values ​​are {0,1}, {3,4}, {6,7}, and {9,10}. These four sets of cyclic shift values ​​can constitute the set of cyclic shift values ​​{0,1,3,4,6,7,9,10} that supports CS hopping. The cyclic shift values ​​for each of the four ports of the terminal device, port 0, port 1, port 2, and port 3, are determined from {0,1,3,4,6,7,9,10}, and the cyclic shift values ​​for all ports may be the same. For example, Figure 12(a) shows the reference cyclic shift values ​​for the four ports. In Case 1, the reference cyclic shift values ​​for the four ports are calculated according to equation (6). In Case 2, the reference cyclic shift values ​​for the four ports may be indicated by the network device or predefined in the protocol. Alternatively, a network device may indicate reference cyclic shift values ​​for some ports, and a terminal device may obtain the reference cyclic shift values ​​for other ports based on those reference cyclic shift values. The reference cyclic shift value for port 2 is CS 0, the reference cyclic shift value for port 3 is CS 3, the reference cyclic shift value for port 0 is CS 6, and the reference cyclic shift value for port 1 is CS 9. During one SRS transmission, the CS of each port changes by 1. As shown in Figure 12(b), the CS of ports 2, 3, 0, and 1 are CS 1, CS 4, CS 7, and CS 10, respectively. During another SRS transmission, the CS of each port changes by 2. As shown in Figure 12(c), the CS of ports 2, 3, 0, and 1 are CS 3, CS 6, CS 9, and CS 0, respectively. During the second SRS transmission, the CS of each port changes by 2. As shown in Figure 12(c), the CS values ​​for ports 2, 3, 0, and 1 are CS 3, CS 6, CS 9, and CS 0, respectively. Between other SRS transmissions, the CS value for each port changes by 1. As shown in Figure 12(d), the CS values ​​for ports 2, 3, 0, and 1 are CS 4, CS 7, CS 10, and CS 1, respectively. Between other SRS transmissions, the CS value for each port changes by 2.As shown in Figure 12(e), the CS values ​​for ports 2, 3, 0, and 1 are CS 6, CS 9, CS 0, and CS 3, respectively. During another SRS transmission, the CS value for each port changes by 1. As shown in Figure 12(f), the CS values ​​for ports 2, 3, 0, and 1 are CS 7, CS 10, CS 1, and CS 4, respectively. During another SRS transmission, the CS value for each port changes by 2. As shown in Figure 12(g), the CS values ​​for ports 2, 3, 0, and 1 are CS 9, CS 0, CS 3, and CS 6, respectively. During another SRS transmission, the CS value for each port changes by 2. As shown in Figure 12(h), the CS values ​​for ports 2, 3, 0, and 1 are CS 10, CS 1, CS 4, and CS 7, respectively. Figures 12(a) to 12(h) are all different f(n). SRS It can be seen that it supports ). Alternatively, the terminal device is f(n SRS Based on the above, select one of the methods shown in Figures 12(a) to 12(h) for transmitting SRS.

[0465] In the two cases described above, the maximum comb offset value n SRS cs,max It may be fixed. In some cases, the maximum comb offset value is n SRS cs,max It may be K times, where K is a positive integer. In this case, the total is n. SRS cs,max There are K comb offset values. Specifically, the CS is divided into smaller granularities. In this case, the number of cyclic shift values ​​included in each CS group is n. SRS cs,max • K / Q. In this case, the length L1 of each comb offset set is 1 or greater, n SRS cs,max• A positive integer less than or equal to K. Specifically, when a terminal device performs CS hopping, the fixed maximum comb offset value in the above case may be used. Alternatively, the maximum comb offset value may be increased. Increasing the maximum comb offset value can increase the comb offset range for hopping for the terminal device, thereby increasing the success rate of SRS transmission by the terminal device. Optionally, K may be indicated to the terminal device by the network device, specified in the protocol, or a predefined value. For example, the value of K may be 1, 2, 4, or 6. Optionally, the terminal device may alternatively decide whether to perform CS hopping based on the value of K. A value of K of 1 indicates that CS hopping will not be performed. A value of K greater than 1 indicates that CS hopping will be performed. The following describes the case where the terminal device performs CS hopping when K is greater than 1. ap SRS The cyclic shift value α of the i-th port out of the given ports. i We will explain two cases for determining this.

[0466] Case 1: The terminal device has a maximum cyclic shift value n SRS cs,max , K, length L1 of each cyclic shift set, number of cyclic shift sets Q, initial cyclic shift value n of the i-th port SRS CS,i , or n SRS CSH Based on at least one of the following, N ap SRS The cyclic shift value of the i-th port among the ports is α i It may be decided that n SRS CS,i This is the cyclic shift value used when CO hopping is not performed. The value of L1 is 1 to K·n SRS cs,max It is within the range of / Q. For example, n SRS CS,i This can also be found according to equation (6).

[0467] Optionally, α i This can also be found according to equation (12).

number

[0468] In equation (12), n SRS CSH =(-1) b f(n SRS ) and the value of b is 0 or 1, and f(n SRS ) is a value generated based on a random number sequence. f(n SRS The range of values ​​for ) is [0, QL1-1], or f(n SRS The range of values ​​of ) may be a subset of [0, QL1-1]. For example, if Q is greater than 2, then f(n SRS The range of values ​​for f(n) may also be [0, L1-1] or [0, 2L1-1]. SRS For the definition of ), please refer to the description of the embodiments above. The difference from the above embodiments is that f(n SRS The key difference is that the modulo operation is performed on L1. For example,

number

[0469] Alternatively, equation (12) may be replaced with equation (13).

number

[0470] Case 2: The terminal device has a maximum cyclic shift value n SRS cs,max , K, length L1 of each cyclic shift set, number of cyclic shift sets Q, initial cyclic shift value n of the i-th port CS start , or n SRS CSH Based on at least one of the following, N apSRS The cyclic shift value of the i-th port among the ports is α i It may be decided that it is so. CS start n CS start This may be specified in the protocol or indicated by the network device.

[0471] Optionally, the cyclic shift value α of the i-th port. i This can be found according to equation (14).

number

[0472] In equation (14), n SRS CSH =(-1) b f(n SRS ) and the value of b is 0 or 1, and f(n SRS ) is a value generated based on a random number sequence. f(n SRS The range of values ​​for ) is [0, QL1-1], or f(n SRS The range of values ​​of ) may be a subset of [0, QL1-1]. For example, if Q is greater than 2, then f(n SRS The range of values ​​for f(n) may also be [0, L1-1] or [0, 2L1-1]. SRS For the definition of ), please refer to the description of the embodiments above. The difference from the above embodiments is that f(n SRS The key difference is that the modulo operation is performed on L1. For example,

number

[0473] n CS start If is 0, equation (14) can be transformed into equation (15).

number

[0474] Alternatively, equation (14) can be replaced with equation (16).

number

[0475] n CS start If is 0, equation (16) can be transformed into equation (17).

number

[0476] S920: The network device selects N from a set of Q cyclic shift values ​​that correspond to the first SRS resource. ap SRS Determine the cyclic shift value for each of the ports. Here, N ap SRS Q is a positive integer, and Q is greater than 1 and N ap RS The following are positive integers:

[0477] A network device selects N corresponding to the first SRS resource from a set of Q cyclic shift values. ap SRS The method for determining the cyclic shift value of each port among the number of ports is such that the terminal device selects N values ​​from a set of Q cyclic shift values ​​corresponding to the first SRS resource. ap SRS This is the same method for determining the cyclic shift value of each port among the n ports. As a result, the cyclic shift value of each port determined by the network device is the same as the cyclic shift value of each port determined by the terminal device, enabling correct transmission and reception of SRS. To avoid repetition, the network device selects N from the set of Q cyclic shift values ​​corresponding to the first SRS resource. ap SRS The method for determining the cyclic shift value of each port among these ports is not explained in detail in S920.

[0478] Note that the order of S910 and S920 is not limited; S910 can be executed before S920, after S920, or simultaneously with S920.

[0479] S930: Terminal device is N ap SRS The SRS is sent based on the cyclic shift value of each port among the N ports, and the network device is N ap SRS The SRS is received based on the cyclic shift value of each port among the individual ports.

[0480] In the above method, the terminal device and the network device select N from the set of Q cyclic shift values ​​that correspond to the first SRS resource. ap SRS The cyclic shift value for each of the Q ports may be determined. Since any two of the Q sets of cyclic shift values ​​are not consecutive, overlap with CS of UEs that do not support CS hopping can be avoided, and interference can be reduced.

[0481] In method 900 described above, Q sets of cyclic shift values ​​correspond to Q subsets of cyclic shift bias values. Optionally, the Q subsets of cyclic shift bias values ​​constitute a first set of cyclic shift bias values. Specifically, the terminal device corresponds to the first SRS resource N ap SRSThe cyclic shift bias value may be determined from a first set of cyclic shift bias values ​​based on each of the n ports, and the terminal device may determine the cyclic shift value for each port based on the cyclic shift bias value of each port and the initial cyclic shift bias value of each port, and transmit an SRS based on the cyclic shift value of each port. That is, the terminal device may transmit an SRS based on the cyclic shift in a set of Q cyclic shift values, or it may transmit an SRS based on a subset of Q cyclic shift bias values. Alternatively, the terminal device may determine a set of Q cyclic shift values ​​based on the initial cyclic shift value of each port and the Q subsets of cyclic shift bias values, and transmit an SRS based on the set of Q cyclic shift values. For example, as shown in Figure 13, N ap SRS = 4, and the four ports are port 0, port 1, port 2, and port 3. The network device configures the length of the first cyclic shift bias value set as Y1=2; the maximum comb offset value is n SRS CS,max It may also be constructed as =12. The shift-bias value subset is {0,1}, and the first cyclic shift-bias value set containing the cyclic shift-bias value subset is also {0,1}. The starting cyclic shift value for port 0 is n SRS CS,i =0, and the set of cyclic shift values ​​corresponding to port 0 may be {0,1}. The starting cyclic shift value for port 1 is n SRS CS,i =3, and the set of cyclic shift values ​​corresponding to port 1 may be {3,4}. The starting cyclic shift value for port 2 is n SRS CS,i =6, and the set of cyclic shift values ​​corresponding to port 1 may be {6,7}. The starting cyclic shift value for port 3 is n SRS CS,i=9, and the set of cyclic shift values ​​corresponding to port 3 may be {9,10}. As shown in diagram (b) of Figure 13, in a given SRS transmission opportunity, the CS for port 0 is CS 1 in {0,1}, the CS for port 1 is CS 4 in {3,4}, the CS for port 2 is CS 7 in {6,7}, and the CS for port 3 is CS 10 in {9,10}. Optionally, in this embodiment of the present application, n SRS CS,i = n CS start,i You can replace it with this.

[0482] Optionally, different ports may correspond to different sets of cyclic shift offset values.

[0483] The first set of cyclic shift bias values ​​is explained by the following two cases:

[0484] Case 1: The cyclic shift bias values ​​included in the first set of cyclic shift bias values ​​are continuous.

[0485] Optionally, a first set of cyclic shift bias values ​​containing Q subsets of cyclic shift bias values ​​contains Y1 consecutive cyclic shift biases, where Y1 is greater than or equal to 1 and has a maximum cyclic shift value of n. RS cs,max The following applies. For example, the first cyclic shift bias value set is {0,1,2}, and Y1 is 3.

[0486] Optionally, a network device may transmit instruction information indicating Y1, and a terminal device may receive instruction information indicating Y1 from a network device, thereby enabling the terminal device to determine Y1.

[0487] Optionally, the first set of cyclic shift bias values ​​is {0, 1 mod n} SRS CS,max ,…,(Y1-1) mod n SRS CS,max} is the modulo operation. The first set of cyclic shift-bias values ​​is {0, 1 mod n SRS CS,max ,…,(Y1-1) mod n SRS CS,max If}, the set of cyclic shift values ​​corresponding to the i-th port corresponds to the direction in which the cyclic shift increases, starting from the initial cyclic shift value of the i-th port. SRS CS,i For details, please refer to the explanation above for equation (6). Details will not be explained to avoid repetition. Optionally, the initial cyclic shift value n of the i-th port. SRS CS,i This may be indicated by a network device instead. In this embodiment of the present application, this is not limited.

[0488] Optionally, the first set of cyclic shift bias values ​​is {0, -1 mod n}. SRS CS,max ,…,(-Y1+1) mod n SRS CS,max} is the modulo operation. The first set of cyclic shift-bias values ​​is {0, -1 mod n SRS CS,max ,…,(-Y1+1) mod n SRS CS,max If}, the set of cyclic shift values ​​corresponding to the i-th port corresponds to the direction in which the cyclic shift decreases, starting from the initial cyclic shift value of the i-th port. Initial cyclic shift value n of the i-th port SRS CS,i For details, please refer to the explanation above for equation (6). Details will not be explained to avoid repetition. Optionally, the initial cyclic shift value n of the i-th port. SRS CS,i Alternatively, this may be represented by a network device. This is not limited to this embodiment of the present application.

[0489] Optionally, in Case 1, the terminal device is Y1 and the random function f(n SRSBased on the first set of cyclic shift bias values, the first cyclic shift bias value n of the SRS transmission opportunity SRS cs,offset The cyclic shift value α of the i-th port may be determined based on the initial cyclic shift value of the i-th port and the first cyclic shift bias value. i You may also request this.

[0490] For example, N ap SRS The cyclic shift value α of the i-th port among the ports. i It will be as follows:

number

[0491] Y1 is n SRS cs,max And K is 1; or Y1 = K·n SRS cs,max f(n SRS ) is a random function. K is 1 or a preset value. SRS CS,i n is the initial cyclic shift value of the i-th port. SRS cs,max n is the maximum cyclic shift value. SRS cs,offset This is the first cyclic shift bias value. Specifically, for a single SRS transmission opportunity, the first comb offset bias value is one comb offset bias value in the first comb offset bias value set. See the example shown in Figure 13. For example, in diagram (a) of Figure 13, for a single SRS transmission opportunity, the first comb offset bias value for the four ports is 1.

[0492] Optionally, if the network device does not configure "cyclicShiftHoppingSubset" or "cyclicShiftHoppingFinerGranularity", n SRS cs,max And K=1. Optionally, if a network device does not constitute a "cyclicShiftHoppingSubset" but does constitute a "cyclicShiftHoppingFinerGranularity", then Y1=K·n SRS cs,max Here, K is a value configured by the network device or a preset value. Optionally, if the network device configures a "cyclicShiftHoppingSubset", Y1 is a value configured by the network device and K is 1. In various cases, the value of Y1 will vary. The network device configuring a "cyclicShiftHoppingSubset" indicates that CS subset hopping is enabled, and the network device may configure the number of cyclic shift bias values ​​included in the first set of cyclic shift bias values, or the number of cyclic shift biases included in the first set of cyclic shift bias values ​​may be preset. The network device not configuring a "cyclicShiftHoppingSubset" indicates that CS subset hopping is disabled. This means that the first set of cyclic shift bias values ​​may include all cyclic shifts. The network device configuring a "cyclicShiftHoppingSubset" indicates that small-grained CS subset hopping is enabled.

[0493] Case 2: The cyclic shift bias values ​​included in the first set of cyclic shift bias values ​​are not contiguous.

[0494] Optionally, the first set of cyclic shift bias values ​​includes at least one subset of cyclic shift bias values, and the cyclic shift bias values ​​contained in each of the at least one subset of cyclic shift bias values ​​are consecutive. Optionally, the at least one subset of cyclic shift bias values ​​are not consecutive. Specifically, the first set of cyclic shift bias values ​​may include multiple subsets, each of which is consecutive, and these subsets are not consecutive.

[0495] Optionally, the cyclic shift-bias interval between any two adjacent cyclic shift-bias subsets of the at least one cyclic shift-bias subset is equal. Optionally, the cyclic shift-bias interval between two adjacent cyclic shift-bias subsets is greater than 1, for example, Δ'.

[0496] Optionally, all of the at least one subset of cyclic shift bias values ​​contain an equal number of cyclic shift bias values. For example, all numbers are S q Here, S q is a positive integer greater than or equal to 1.

[0497] Optionally, the first set of cyclic shift bias values ​​contains Q subsets of cyclic shift values, where Q is greater than 1 or n SRS cs,max It is a smaller positive integer.

[0498] Optionally, the first set of cyclic shift bias values ​​is the total cyclic shift amount n SRS cs,max Δ' is the interval between any two adjacent subsets of cyclic shift bias values, and S is the number of cyclic shift bias values ​​contained in each subset of cyclic shift bias values. q It can be obtained based on this.

[0499] Arbitrarily, the q-th cyclic shift-bias value subset among Q cyclic shift-bias value subsets is:

number

number

[0500] Arbitrarily, the q-th cyclic shift-bias value subset among Q cyclic shift-bias value subsets is

number

number

number

[0501] Optionally, the cyclic shift bias value subset of the qth is

number

[0502] Optionally, S is the number of cyclic shift-bias values ​​included in each subset of cyclic shift-bias values. q There is a relationship between the number of cyclic shift bias values ​​Q in the subset of cyclic shift bias values ​​and the number of cyclic shift bias values ​​Y1 included in the first set of cyclic shift bias values. Network devices are L g , Q or Y1 may be configured as two of them. The terminal device is configured based on the two items configured by the network device, S q The remaining one of Q or Y1 may be determined. For example, the network device is L g And Y1 may be configured, and the terminal device is S q G may be obtained based on and Y1. Alternatively, a network device may configure Q and Y1, and a terminal device may obtain S based on Q and Y1. q You may obtain S. For example, the association is S q ×Q=Y1 is also acceptable.

[0503] Optionally, the maximum cyclic shift value n SRS cs,max There is a relationship between the number of cyclic shift bias value subsets Q and the cyclic shift bias value interval Δ' between any two adjacent cyclic shift bias value subsets. Network devices are n SRS cs,max , Q or Δ' may be configured as two. The terminal device is based on the two items configured by the network device, n SRS cs,max , the remaining of Q or Δ' may be determined. For example, a network device has Δ' and n SRS cs,max The terminal device is configured with Δ' and K TC Based on this, obtain G. Alternatively, the network device is Q and n SRS cs,max The terminal device is configured as K TC And Δ' may be obtained based on Q. For example, the association is nSRS cs,max =Δ'·Q may.

[0504] Optionally, in Case 1, the terminal device is N ap SRS Q may be determined as the number of ports that are on the same comb offset out of the total number of ports. For example, as shown in Figure 13, all four ports are on CO 0. In this case, Q may be 4. As shown in Figure 14, suppose that out of the four ports, ports 0 and 2 are on CO 0, and ports 1 and 3 are on CO 2. In this case, Q may be 2. In this case, Q is N ap.comb SRS You can replace it with this.

[0505] Optionally, in Case 2, the terminal device is Q, N ap SRS It may be determined that Q is the number of different cyclic shifts occupied by each port. For example, as shown in diagram (a) in Figure 13, four ports occupy CS 0, CS 3, CS 6, and CS 9 respectively. In this case, Q may be 4. In this case, Q is N ap.diffics SRS It can be replaced with this.

[0506] Optionally, in Case 3, the terminal device has a total of N ports where Q corresponds to the first SRS resource. ap SRS It may be decided that Q is N. For example, in Figures 13 and 14, Q is 4. In this case, Q is N ap SRS You can replace it with this.

[0507] Optionally, in Case 4,

number

[0508] When the terminal device determines Q according to one of the above cases 1, 2, 3, or 4, specifically, when Q is N ap.comb SRS When Q is N ap.diffics SRS When Q is N ap SRS When or

number

[0509] Next, from the first set of cyclic shift bias values, we obtain the first cyclic shift bias value n of the i-th port. SRS cs,offset The following describes six methods for determining the first cyclic shift bias value n. A network device or protocol may specify one of the following seven methods to be used by a terminal device. Alternatively, there may be a priority relationship between the six methods, and the terminal device selects the method with the highest priority and the first cyclic shift bias value n SRS cs,offsetAlternatively, the terminal device may determine a first cyclic shift bias value n based on the implementation of the terminal device. SRS cs,offset You may choose one of the six methods to determine this.

[0510] Method 1: The terminal device uses Y1 and a random function f(n SRS Based on this, the first cyclic shift bias value n SRS cs,offset You may decide that.

[0511] For example, n SRS cs,offset =S(f(n SRS ) mod Y1)=f(n SRS ) modulo Y1.

[0512] Optionally, if the network device does not configure "cyclicShiftHoppingSubset" or "cyclicShiftHoppingFinerGranularity", Y1=n SRS cs,max And K is 1. Specifically, if the network device does not enable CS subset hopping, the first comb offset bias value may be determined by method 1. Specifically, if the network device does not enable CS subset hopping or finer-grained CS subset hopping, the first cyclic shift bias value may be determined by method 1.

[0513] Optionally, if a network device does not configure "cyclicShiftHoppingSubset" but does configure "cyclicShiftHoppingFinerGranularity", then Y1 = K / n SRS cs,maxHere, K is a value configured by the network device or a preset value. Specifically, if the network device does not enable CS subset hopping but does enable finer-grained CS subset hopping, the first cyclic shift bias value may be determined by formula 1.

[0514] The terminal device uses Y1 and a random function f(n SRS Based on this, using another formula, the first cyclic shift bias value n SRS cs,offset It is understood that the terminal device may determine Y1 and a random function f(n SRS Based on this, the first cyclic shift bias value n SRS cs,offset The method for determining this is not limited, and the formula in Method 1 may be transformed in any way.

[0515] Method 2: The terminal device is Y1, Q, and random function f(n SRS ), and n SRS cs,max Based on this, the first cyclic shift bias value n SRS cs,offset You may decide that.

[0516] for example,

number

[0517] Optionally, if the network device configures a cyclicShiftHoppingSubset, the first cyclic shift bias value n in Method 2 SRS cs,offset It may be determined that, specifically, if the network device has enabled CS subset hopping, the terminal device has Y1, Q, and a random function f(n SRS ), and n SRScs,max Based on this, the first comb offset bias value n SRS cs,offset You may decide that.

[0518] Optionally, if Y1 is not divisible by Q, then Y1 / Q is

number

[0519] Optionally, Y1 may be a positive integer multiple of Q.

[0520] The terminal device is defined as Y1, Q, and random function f(n SRS ), and n SRS cs,max Based on this, the first cyclic shift bias value n is obtained using a different formula. SRS cs,offset It is understood that the terminal device may determine Y1, Q, and a random function f(n SRS ), and n SRS cs,max Based on this, the first cyclic shift bias value n SRS cs,offset The method for determining this is not limited, and the formula for method 2 can be transformed in any way.

[0521] Method 3: The terminal device is Y1, Q, and random function f(n SRS ), S q , n SRS cs,max Based on this, the first cyclic shift bias value n SRS cs,offset You may decide that.

[0522] for example,

number

[0523] Optionally, if the network device is configured as a cyclicShiftHoppingSubset, the first cyclic shift bias value n SRS cs,offset This may be determined in method 3. Specifically, if the network device has enabled CS subset hopping, the terminal device has Y1, Q, and a random function f(n SRS ), S q , n SRS cs,max Based on this, the first comb offset bias value n SRS cs,offset You may decide that.

[0524] The terminal device is defined as Y1, Q, and random function f(n SRS ), S q , n RS cs,max Based on this, using another formula, the first cyclic shift bias value n SRS cs,offset It is understood that it may be determined that Y1, Q, and a random function f(n SRS ), S q , n SRS cs,max Based on this, the first cyclic shift bias value n SRS cs,offset The method for determining this is not limited, and the formula in Method 3 can be transformed in any way.

[0525] Method 4: The terminal device uses a random function f(n SRS ) and n SRS cs,max Based on this, the first cyclic shift bias value n SRS cs,offset You may decide that.

[0526] For example, n SRS cs,offset =f(n SRS ) mod n SRS cs,max And K is 1.

[0527] Optionally, if the network device does not configure cyclicShiftHoppingSubset or cyclicShiftHoppingFinerGranularity, K is 1. Specifically, if the network device does not enable CS subset hopping, the first comb offset bias value may be determined in formula 4. Specifically, if the network device does not enable CS subset hopping or finer-grained CS subset hopping, the first cyclic shift bias value may be determined in formula 4.

[0528] The terminal device uses a random function f(n SRS ) and n SRS cs,max Based on this, the first cyclic shift bias value n is obtained using a different formula. SRS cs,offset It is understood that it may be determined that the terminal device is n SRS cs,max and random function f(n SRS Based on this, the first cyclic shift bias value n SRS cs,offset The method for determining this is not limited, and the formula in Method 4 may be transformed in any way.

[0529] Method 5: The terminal device is K, and the random function f(n SRS ) and n SRS cs,max Based on this, the first cyclic shift bias value n SRS cs,offset You may decide that.

[0530] For example, n SRS cs,offset =f(n SRS ) mod (K·n SRS cs,max ) where K is a value configured by the network device, or a preset value.

[0531] Optionally, if the network device does not configure "cyclicShiftHoppingSubset" but configures "cyclicShiftHoppingFinerGranularity", K is a value configured by the network device or a preset value. Specifically, if the network device does not enable CS subset hopping but enables finer-grained CS subset hopping, the first cyclic shift bias value may be determined in formula 5.

[0532] The terminal device has a first cyclic shift bias value n SRS cs,offset Let K be a random function f(n SRS ) and n SRS cs,max It is understood that, based on this, it may be determined using a different formula. In this embodiment of the present application, the terminal device determines the first cyclic shift bias value as K, random function f(n SRS ) and n SRS cs,max The method used to make the decision based on this is not limited, and the formula in method 5 may be transformed in any way.

[0533] Method 6: The terminal device has a first cyclic shift bias value n SRS cs,offset The random function f(n SRS ), Y1, Q, n SRS cs,max The decision may be made based on this.

[0534] for example,

number

[0535] Optionally, if a network device configures a cyclicShiftHoppingSubset, the first cyclic shift bias value n SRS cs,offsetThis may be determined in method 6. Specifically, if the network device enables CS subset hopping, the terminal device will determine f(n SRS ), Y1, Q and n SRS cs,max Based on this, a first comb offset bias value may be determined.

[0536] If Y1 is not divisible by Q, then Y1 / Q is:

number

[0537] Optionally, Y1 may be a positive integer multiple of Q.

[0538] The terminal device is f(n SRS ), Y1, Q and n SRS cs,max Based on this, using another formula, the first cyclic shift bias value n SRS cs,offset It is understood that it may be determined that f(n SRS ), Y1, Q and n SRS cs,max Based on this, the first cyclic shift bias value n SRS cs,offset The method for determining this is not limited, and the formula in method 6 can be transformed in any way.

[0539] Method 7: The terminal device uses a random function f(n SRS ), Y1, S q , Q and n SRS cs,max Based on this, the first cyclic shift bias value n SRS cs,offset You may decide that.

[0540] for example,

number

[0541] Optionally, if a network device configures a cyclicShiftHoppingSubset, the first cyclic shift bias value n SRS cs,offset This may be determined in method 7. Specifically, if the network device enables CS subset hopping, the terminal device will have f(n SRS ), Y1, S q , Q and n SRS cs,max Based on this, the first comb offset bias value n SRS cs,offset You may decide that.

[0542] The terminal device is f(n SRS ), Y1, S q , Q and n SRS cs,max Based on this, the first cyclic shift bias value n is obtained using a different formula. SRS cs,offset It is understood that it may be determined that f(n SRS ), Y1, S q , Q and n SRS cs,max The method for determining the first cyclic shift bias value based on this is not limited, and the formula of method 7 may be modified in any way.

[0543] Optionally, the first cyclic shift bias value n is determined using one of the seven methods described above. SRS cs,offset After determining the first cyclic shift bias value n, the terminal device SRS cs,offset Based on N ap SRS The cyclic shift value of the i-th port among the ports.

number

number

[0544] Optionally, depending on the circumstances, the network device may indicate Δ', or

number

number

number

[0545] When the terminal device determines Δ', the following is the first cyclic shift bias value n of the p-th port group from the first set of cyclic shift bias values. SRS cs,offset The following describes seven methods for determining the first cyclic shift bias value n. A network device or protocol may specify one of the following seven methods used by a terminal device. Alternatively, there may be a priority relationship among the seven methods, and the terminal device may determine the first cyclic shift bias value n. SRS cs,offset To determine this, a higher-priority method may be selected. Alternatively, the terminal device may, based on the implementation of the terminal device, determine a first cyclic shift bias value n SRS cs,offset To make this decision, you may choose one of the seven methods.

[0546] Method 1: The terminal device uses Y1 and a random function f(n SRS Based on this, the first cyclic shift bias value n SRS cs,offset You may decide that.

[0547] For example, n SRS cs,offset =S(f(n SRS ) mod Y1)=f(n SRS ) modulo Y1.

[0548] Optionally, if the network device does not configure "cyclicShiftHoppingSubset" or "cyclicShiftHoppingFinerGranularity", Y1=n SRS cs,max And K is 1. Specifically, if the network device does not enable CS subset hopping, the first comb offset bias value may be determined in Method 1. Specifically, if the network device does not enable CS subset hopping or finer CS subset hopping, the first cyclic shift bias value may be determined in Method 1.

[0549] Optionally, if a network device does not constitute a "cyclicShiftHoppingSubset" but does constitute a "cyclicShiftHoppingFinerGranularity", then Y1 = K·n SRS cs,max Here, K is a value configured by the network device or a preset value. Specifically, if the network device does not enable CS subset hopping but enables finer-grained CS subset hopping, the first cyclic shift bias value may be determined in formula 1.

[0550] The terminal device uses Y1 and a random function f(n SRS Based on this, using another formula, the first cyclic shift bias value n SRScs,offset It is understood that the terminal device may determine Y1 and a random function f(n SRS Based on this, the first cyclic shift bias value n SRS cs,offset The method for determining this is not limited, and the formula in Method 1 may be transformed in any way.

[0551] Method 2: The terminal device is Y1, Δ', random function f(n SRS ), and n SRS cs,max Based on this, the first cyclic shift bias value n SRS cs,offset You may decide that.

[0552] for example,

number

number

[0553] Optionally, if the network device is configured as a cyclicShiftHoppingSubset, the first cyclic shift bias value n SRS cs,offset This may be determined in method 2. Specifically, if the network device has enabled CS subset hopping, the terminal device has Y1, Δ', and a random function f(n SRS ), n SRS cs,max Based on this, the first comb offset bias value n SRS cs,offset You may decide that.

[0554] Arbitrarily, Y1 × Δ' is n SRS cs,max If it is not divisible by (Y1 × Δ') / n SRS cs,max teeth

number

[0555] Optionally, Y1 × Δ' is n SRS cs,max It may also be a positive integer multiple of .

[0556] The terminal device is Y1, Δ', and random function f(n SRS ) and n SRS cs,max Based on this, the first cyclic shift bias value n is obtained using a different formula. SRS cs,offset It is understood that the terminal device may determine Y1, Δ', and a random function f(n SRS ) and n SRS cs,max Based on this, the first cyclic shift bias value n SRS cs,offset The method for determining this is not limited, and the formula for method 2 can be transformed in any way.

[0557] Method 3: The terminal device is Y1, Δ', random function f(n SRS ), S q Based on this, the first cyclic shift bias value n SRS cs,offset You may decide that.

[0558] for example,

number

[0559] Optionally, if a network device configures a cyclicShiftHoppingSubset, the first cyclic shift bias value n SRS cs,offsetThis may be determined by method 3. Specifically, if the network device enables CS subset hopping, the terminal device has Y1, Δ', and a random function f(n SRS ), S q and n SRS cs,max Based on this, the first comb offset bias value n SRS cs,offset You may decide that.

[0560] The terminal device is Y1, Δ', and random function f(n SRS ), S q Based on this, using another formula, the first cyclic shift bias value n SRS cs,offset It is understood that it may be determined that. In this embodiment of the present application, the terminal device is Y1, Δ', and random function f(n SRS ), S q Based on this, the first cyclic shift bias value n SRS cs,offset The method for determining this is not limited, and the formula in method 3 may be transformed in any way.

[0561] Method 4: The terminal device uses a random function f(n SRS ) and n SRS cs,max Based on this, the first cyclic shift bias value n SRS cs,offset You may decide that.

[0562] For example, n SRS cs,offset =f(n SRS ) mod n SRS cs,max And K is 1.

[0563] Optionally, if the network device does not configure cyclicShiftHoppingSubset or cyclicShiftHoppingFinerGranularity, K is 1. Specifically, if the network device does not enable CS subset hopping, the first comb offset bias value may be determined in Method 4. Specifically, if the network device does not enable CS subset hopping or finer-grained CS subset hopping, the first cyclic shift bias value may be determined in Method 4.

[0564] The terminal device is n SRS cs,max and random function f(n SRS Based on this, the first cyclic shift bias value n SRS cs,offset It is understood that it may be determined that. In this embodiment of the present application, the terminal device is n SRS cs,max and random function f(n SRS Based on this, the first cyclic shift bias value n SRS cs,offset The method for determining this is not limited, and the formula in Method 4 may be transformed in any way.

[0565] Method 5: The terminal device is K, and the random function f(n SRS ) and n SRS cs,max Based on this, the first cyclic shift bias value n SRS cs,offset You may decide that.

[0566] For example, n SRS cs,offset =f(n SRS ) mod(K·n SRS cs,max ) where K is a value configured or preset value by the network device.

[0567] Optionally, if a network device does not configure cyclicShiftHoppingSubset but configures cyclicShiftHoppingFinerGranularity, K is a value configured by the network device or a preset value. Specifically, if a network device does not enable CS subset hopping but enables finer-grained CS subset hopping, the first cyclic shift bias value may be determined in scheme 5.

[0568] The terminal device is K, and the random function is f(n SRS ) and n SRS cs,max Based on this, the first cyclic shift bias value n is obtained using a different formula. SRS cs,offset It can be seen that the terminal device may determine K, random function f(n SRS ) and n SRS cs,max Based on this, the first cyclic shift bias value n SRS cs,offset The method for determining this is not limited, and the formula in Method 5 may be transformed in any way.

[0569] Method 6: The terminal device uses a random function f(n SRS ), Y1, Δ' and n SRS cs,max Based on this, the first cyclic shift bias value n SRS cs,offset You may decide that.

[0570] for example,

number

number

[0571] Optionally, if a network device configures a cyclicShiftHoppingSubset, the first cyclic shift bias value n SRS cs,offset This may be determined in method 6. Specifically, if the network device enables CS subset hopping, the terminal device will have f(n SRS ), Y1, Δ' and n SRS cs,max Based on this, the first comb offset bias value n SRS cs,offset You may decide that.

[0572] Arbitrarily, Y1 × Δ' is n SRS cs,max If it is not divisible by Y1 × Δ' / n SRS cs,max teeth

number

[0573] Optionally, Y1 × Δ' is n SRS cs,max It may also be a positive integer multiple of .

[0574] The terminal device is f(n SRS ), Y1, Δ' and n SRS cs,max Based on this, the first cyclic shift bias value n is obtained using a different formula. SRS cs,offset It is understood that it may be determined that f(n SRS ), Y1, Δ' and n SRS cs,max Based on this, the first cyclic shift bias value n SRS cs,offset The method for determining this is not limited, and the formula for method 6 can be transformed in any way.

[0575] Method 7: The terminal device uses a random function f(n SRS ), Y1, S qAnd based on Δ', the first cyclic shift bias value n SRS cs,offset You may decide that.

[0576] for example,

number

[0577] Optionally, if a network device configures a cyclicShiftHoppingSubset, the first cyclic shift bias value n SRS cs,offset This may be determined in method 7. Specifically, if the network device has enabled CS subset hopping, the terminal device will have f(n SRS ), Y1, S q And the first comb offset bias value n based on Δ' SRS cs,offset You may decide that.

[0578] The terminal device is f(n SRS ), Y1, S q Based on Δ', the first cyclic shift bias value n is obtained using another formula. SRS cs,offset It is understood that it may be determined that f(n SRS ), Y1, S q And based on Δ', the first cyclic shift bias value n SRS cs,offset The method for determining this is not limited, and the formula in method 7 may be transformed in any way.

[0579] Optionally, the first cyclic shift bias value n is determined using one of the seven methods described above. SRS cs,offset After determining the first cyclic shift bias value n, the terminal device SRScs,offset Based on N ap SRS The cyclic shift value of the i-th port of this port.

number

number

[0580] The first cyclic shift set described above corresponds to the initial cyclic shift value of the i-th port and the first cyclic shift bias value set. Specifically, the first cyclic shift bias value set may be combined with method 1100, or the first cyclic shift bias value set may be an independent embodiment. Below, a solution in which the first cyclic shift bias value set may function as an independent embodiment will be briefly described. In the independent embodiment solution, the terminal device corresponds to N of the first SRS resource ap SRS The initial comb offset value of the i-th port among the i-th ports and the first cyclic shift bias value of the i-th port in the first set of cyclic shift bias values ​​(where 1 to N). ap SRS The SRS may be transmitted based on the range of positive integers. That is, for each port, the SRS may be transmitted based on the initial cyclic shift value and the first cyclic shift bias value for that port in the first set of cyclic shift bias values. If the first set of cyclic shift bias values ​​can be an alternative independent embodiment, then the n obtained in the above schemes may be SRS cs,offsetHowever, it may also be the first comb offset bias value of the i-th port in the first set of cyclic shift bias values. The terminal device has the first cyclic shift bias value n SRS cs,offset Based on this, the cyclic shift value of the i-th port

number

[0581] In some embodiments of the present invention, the SRS transmission time can be understood as an SRS transmission cycle, a specific time of SRS transmission within an SRS transmission cycle, or an SRS transmission on a specific OFDM symbol within an SRS transmission cycle.

[0582] In some embodiments of the present invention, supporting CS hopping may indicate that CS hopping is enabled, not supporting CS hopping may indicate that CS hopping is disabled, supporting CO hopping may indicate that CO hopping is enabled, and not supporting CO hopping may indicate that CO hopping is disabled.

[0583] In the embodiments of the present application, the conditions for determining whether CO hopping or CS hopping occurs are not limited, and it may be indicated whether a network device performs CO hopping or CS hopping.

[0584] In the embodiments of the present application, comb offset, comb offset step, cyclic shift value, cyclic shift index, etc., may have alternative names. These names are not...

Claims

1. It is a method of communication: The first comb offset set φ corresponding to the p-th port group. p The step includes transmitting an SRS based on at least one comb offset in N corresponding to a first SRS resource. ap SRS The number of ports is divided into P groups, and the P port groups corresponding to the first SRS resource include the p port group, N ap SRS n is a positive integer, p is a positive integer in the range from 1 to P, and the value of p is 1 or greater than or equal to N. ap SRS The following are positive integers: method.

2. The first comb offset set φ corresponding to the port group p p The method according to claim 1, wherein the comb offset interval between any two adjacent comb offsets in is equal.

3. the first comb offset set φ corresponding to the p-th port group p includes at least one comb offset subset, the comb offsets included in each of the at least one comb offset subset are consecutive, and the comb offset interval between any two adjacent comb offset subsets of the at least one comb offset subset is equal, the method according to claim 1.

4. The first comb offset set φ corresponding to the port group p p The method according to claim 1, wherein the comb offset included is continuous.

5. The first comb offset set φ corresponding to the port group p p The reference comb offset k of the aforementioned port group p TC,start p and obtained based on the comb offset step of the port group p, k TC,start p The method according to claim 4, wherein is a positive integer.

6. The reference comb offset k of the port group p TC,start p The method according to claim 5, wherein is specified in the protocol or indicated by a network device.

7. The reference comb offset k of the port group p TC,start p This is the total number of combs K composed of network devices. TC , N ap SRS , reference port comb offset ￣k TC , maximum cyclic shift value n RS cs,max , or obtained based on at least one of the cyclic shift values ​​of the reference port in the port group of the preceding p, K TC is a positive integer greater than or equal to 1, and n SRS cs,max ￣k is a positive integer greater than or equal to 1. TC is 0 or greater than K TC The method according to claim 5, wherein the result is a positive integer less than or equal to a positive integer.

8. The first comb offset set φ corresponding to the port group p p The total number of combs K is... TC , the reference comb offset k of the port group p TC,start p , or n of the port group p mentioned above p The first comb offset set φ is obtained based on at least one of the comb offset steps. p is, n p Including the comb offset of n p The comb offset of each is the n p Each comb offset step corresponds one-to-one, n p is K TC The method according to any one of claims 5 to 7, wherein the result is a positive integer as follows:

9. The method further: The process includes receiving first instruction information and second instruction information from the network device, wherein the first instruction information is the total comb number K TC The second instruction information is n p To show, The method according to claim 8.

10. The first comb offset set φ corresponding to the port group p p This is as follows: [Math 1] Here, 0, 1, 2, ..., n p -1 is the same as n p It is a comb offset step; or As follows, namely [Math 2] Here, 0, -1, -2, ..., -n p +1 is the above n p This is a comb offset step, mod(・) is the modulo operation. The method according to claim 8 or 9.

11. The method further: The process includes the step of receiving a third instruction information from the network device, wherein the third instruction information is the first comb offset set φ corresponding to the port group p. p but [Math 3] This indicates that, or the third instruction information indicates the first comb offset set φ corresponding to the port group p. p but [Math 4] To show that The method according to claim 10.

12. The first comb offset set φ corresponding to the port group p p Transmitting the SRS based on the at least one comb offset in: The aforementioned first comb offset set φ p The total number of comb offsets included n p A step in which a first value is generated based on the above, wherein the value range of the first value is [0, n p -1] is the stage; The aforementioned first comb offset set φ p From there, the step of determining a first comb offset corresponding to the first value, wherein the comb offset of each port in the port group p is the first comb offset, [0,n p One value in -1 is the first comb offset set φ mentioned above. p A step corresponding to one comb offset in; The steps include transmitting the SRS based on the first comb offset and The method according to any one of claims 7 to 11, including

13. The first comb offset set φ corresponding to the port group p p The nth p i The comb offset is the nth p i Corresponding to the comb offset step, the n p i The comb offset step is the number of comb offset steps n p This corresponds to a second value generated based on the above, and the value range of the said second value is [0, n p The method according to any one of claims 5 to 7, wherein [-1]

14. The above n p i Comb offset step k COH,i p (-1) b f(n SRS ) and f(n SRS The method according to claim 13, wherein ) is the second value and the value of b is 0 or 1.

15. The first comb offset set φ corresponding to the port group p p Transmitting the SRS based on the at least one comb offset in: The aforementioned first comb offset set φ p The n in p i Comb offset step k COH,i p , the reference comb offset k of the port group p TC,start p , or the total number of combs K TC A step of determining the first comb offset of the port group p based on at least one of the following: A step of determining the frequency domain start position to which the p port group is mapped, based on the first comb offset and the frequency domain resource offset; The steps include: transmitting the SRS based on the frequency domain start position to which the port group p is mapped; The method according to claim 14, including the method described in claim 14.

16. the reference comb offset k of the p-th port group TC,start p is the total number of combs K constituted by the network device TC the comb offset -k of the reference port TC the maximum cyclic shift value n RS CS,max or k obtained based on at least one of the cyclic shift values of the reference port in the p-th port group TC p and the determination of the first comb offset of the p-th port group based on at least one of: p the n p i comb offset step k in the comb offset set φ COH,i p the reference comb offset k of the p-th port group TC,start p or the total number of combs K TC is as follows: The first comb offset of the port group p is [Math 5] This includes determining that k offset l' This is the comb offset adjustment value; Based on the first comb offset and the frequency domain resource offset, determining the frequency domain start position to which the p port group is mapped is: The frequency domain start position to which the port group p is mapped is [Math 6] This includes determining that n shift N SC RB This is the frequency domain resource offset, The method according to claim 15.

17. The reference comb offset k of the port group p TC,start p This is specified in the protocol or indicated by the network device, and the first comb offset set φ p The n in p i Comb offset step k COH,i p , the reference comb offset k of the port group p TC,start p , or the total number of combs K TC Based on at least one of the following, the first comb offset of the port group p can be determined as follows: The first comb offset of the port group p is [Number 7] This includes determining that k offset l' This is the comb offset adjustment value, k TC p The total number of combs K configured by the network devices is TC , the comb offset of the aforementioned reference port -k TC , the maximum cyclic shift value n RS CS,max , or obtained based on at least one of the cyclic shift values ​​of the reference port in the port group p; Based on the first comb offset and the frequency domain resource offset, determining the frequency domain start position to which the p port group is mapped is: The frequency domain start position to which the port group p is mapped is [Number 8] This includes determining that n shift N SC RB This is the frequency domain resource offset. The method according to claim 15.

18. The aforementioned port group p is m p The first comb offset set φ includes the number of ports. p The m in p Each comb offset of a port is related to the index of the cyclic shift group to which the cyclic shift value corresponding to that port belongs, the first SRS resource corresponds to T groups of cyclic shift values, and the T groups of cyclic shift values ​​correspond to T cyclic shift group indices; or the first comb offset set φ p The m in p Each comb offset of a port is associated with a cyclic shift value corresponding to that port, and the first SRS resource corresponds to T cyclic shift values ​​of the cyclic shift value, The method according to any one of claims 1 to 11, wherein T is a positive integer.

19. The aforementioned first comb offset set φ p The m in p Of the ports, the m p j Port comb offset n p j is, k TC P or the aforementioned m p j It is obtained based on at least one index of the cyclic shift group to which the cyclic shift value corresponding to the port belongs; or The aforementioned first comb offset set φ p The m in p Of the ports, the m p j Port comb offset n p j is, k TC p and / or the aforementioned p j Obtained based on the cyclic shift value corresponding to the port, k TC p The total number of combs K composed of the network devices is TC , N ap SRS , the comb offset of the aforementioned reference port -k TC , the maximum cyclic shift value n RS CS,max , or obtained based on at least one of the cyclic shift values ​​of the reference port in the port group of the preceding p, The method according to claim 18.

20. said m p Of the ports, the m p j The nth port p j Corresponding to the comb offset step, the n p j The comb offset step is the number of comb offset steps n p This corresponds to a third value generated based on the above, and the value range of the third value is [0, n p The method according to claim 18, wherein [-1]

21. The above n p j Comb offset step k COH,j p teeth [Number 9] And here, f(n SRS ) is the third value mentioned above, the value of b is 0 or 1, and n srs CS,max is the maximum cyclic shift value, n SRS CS,j The above m p j The cyclic shift value corresponding to the port, where T is the number of cyclic shift groups; or The above n p j Comb offset step k COH,j p is (-1) b [f(n SRS ) + T j ] and here, T j The above m p j This is the index of the cyclic shift group to which the cyclic shift value corresponding to the port belongs, T j The value of is a positive integer in the range of 0 to T-1. The method according to claim 20.

22. The first comb offset set φ corresponding to the port group p p Transmitting the SRS based on the at least one comb offset in: said mth p j The aforementioned n corresponding to the port p j Comb offset step k COH,j p , said mth p j Port reference comb offset k TC,start p , or the total number of combs K TC Based on at least one of the above, p j The step of determining the comb offset of the port; said mth p j Based on the port comb offset and frequency domain resource offset, the aforementioned m p j The step of determining the starting position of the frequency domain where the port is mapped; said mth p j The step includes transmitting the SRS based on the frequency domain start position on which the port is mapped, where m p j is 1 to m p A positive integer in the range of The method according to claim 21.

23. The reference comb offset k of the port group p TC,start p The total number of combs K configured by the network devices is TC , N ap SRS , the comb offset of the aforementioned reference port -k TC , the maximum cyclic shift value n RS CS,max , or the cyclic shift value k of the reference port in the aforementioned p port group. TC p Obtained based on at least one of the above m p j The nth port corresponding to the port p j Comb offset step k COH,j p , said mth p j The aforementioned reference comb offset k of the port TC,start p , or the total number of combs K TC Based on at least one of the preceding m p j Determining the comb offset of the port is: said mth p j The comb offset of the port is [Number 10] This includes determining that k offset l' This is the comb offset adjustment value; said mth p j Based on the port comb offset and the frequency domain resource offset, the aforementioned m p j Determining the starting position of the frequency domain to which the port is mapped is: said mth p j The frequency domain start position to which the port is mapped is [Math 11] This includes determining that n shift N SC RB This is the frequency domain resource offset. The method according to claim 22.

24. The reference comb offset k of the port group p TC,start p This is specified in the protocol or indicated by the network device, and the m p j The aforementioned n corresponding to the port p j Comb offset step k COH,j p , said mth p j The aforementioned reference comb offset k of the port TC,start p , or the total number of combs k TC p Based on at least one of the above, p j Determining the comb offset of the port is: said mth p j The comb offset of the port is [Math 12] This includes determining that k offset l' This is the comb offset adjustment value, k TC p The total number of combs K is composed of the aforementioned network devices. TC , N ap SRS , the comb offset of the aforementioned reference port -k TC , the maximum cyclic shift value n RS CS,max , or obtained based on at least one of the cyclic shift values ​​of the reference port in the port group p; said mth p j Based on the port comb offset and the frequency domain resource offset, the m p j Determining the starting position of the frequency domain to which the port is mapped is: said mth p j The frequency domain start position to which the port is mapped is [Number 13] This includes determining that n shift N SC RB This is the frequency domain resource offset. The method according to claim 22.

25. The method according to any one of claims 14 to 17 or 21 to 24, wherein the value of b is specified in the protocol or indicated by the network device. [Request Item 26] [Number 14] Here, c(m) is the mth element of the random sequence, and B is [Number 15] The above are positive integers: The method according to any one of claims 14 to 17, 21 to 24, or 25.

27. The aforementioned first comb offset set φ p The method according to any one of claims 1 to 26, wherein is obtained based on a second comb offset set that cannot be used to transmit SRS on the first SRS resource.

28. The P port groups correspond to the N first SRS resources. ap SRS The method according to any one of claims 1 to 27, obtained based on the number of individual ports and port groups P.

29. The interval between the port indices of adjacent ports included in each of the P port groups is N ap SRS The method according to claim 28, wherein / P.

30. The aforementioned first comb offset set φ p The method according to claim 1, wherein corresponds to the initial comb offset value of the port group p and the first set of comb offset bias values.

31. The first comb offset bias value set is L g,1 Including individual consecutive cyclic shift biases, Here, L g,1 The total number of combs is 1 or more and K TC The following positive integers, where K is the total comb number. TC is a positive integer greater than or equal to 1. The method according to claim 30.

32. L g,1 The method according to claim 31, wherein instruction information indicating is received from a network device.

33. The aforementioned first comb offset bias value set is {0, 1 mod K} TC , … ,(L g,1 -1) mod K TC } is; or The aforementioned first comb offset bias value set is {0, -1 mod K} TC , … ,(-L g,1 +1) mod K TC } and The method according to claim 31 or 32, wherein mod(・) is the modulo operation.

34. The frequency domain start position to which the aforementioned port group p is mapped is [Number 16] And here, n shift N SC RB is the frequency domain resource offset, and k offset l' This is the comb offset adjustment value, k TC p f(n) is the initial comb offset value for the port group p, where f(n) is the initial comb offset value for the port group p. SRS ) is a random function, and n SRS comb,offset = f(n SRS ) mod L g,1 And L g,1 = K TC or L g,1 n is a value configured by the aforementioned network device or a preset value, SRS comb,offset is the first comb offset bias value of the port group p in the first set of comb offset bias values. The method according to any one of claims 31 to 33.

35. The method according to claim 30, wherein the first set of comb offset bias values ​​comprises at least one subset of comb offset bias values, and the comb offset bias values ​​contained in each of the at least one subset of comb offset bias values ​​are contiguous.

36. The method according to claim 35, wherein the comb offset bias value interval between any two adjacent comb offset bias value subsets of the at least one comb offset bias value subset is equal.

37. The method according to claim 35 or 36, wherein all of the at least one subset of comb offset bias values ​​include an equal number of comb offset bias values.

38. The number of the aforementioned at least one comb offset bias value subset is G, and the g-th comb offset bias value subset among the G comb offset bias value subsets is {Δ g mod K TC , (Δ g +1) mod K TC …, (Δ g +L g -1) mod K TC }or {-Δ g towards K TC , (-Δ g -1) towards K TC …, (-Δ g -L g +1) against K TC } Here, Δ 0 = 0, Δ g = Δ"・g, where g = 0, 1, ..., G-1, and Δ" is the comb offset bias value interval between any two adjacent comb offset bias value subsets, K TC This is the total number of combs, L g This is the number of comb offset bias values ​​included in the g-th comb offset bias value subset, [Number 17] And L g,1 This is the total number of comb offset bias values ​​included in the first set of comb offset bias values. The method according to any one of claims 35 to 37.

39. K TC The method according to claim 38, wherein = Δ"・G.

40. G is on the same circulating shift as N ap SRS The number of ports out of the number of ports, or G is the number of ports mentioned above. ap SRS The method according to claim 38 or 39, which is the number of different comb offsets occupied by the individual ports.

41. The frequency domain start position to which the aforementioned port group p is mapped is: [Number 18] And here, n shift N SC RB This is the frequency domain resource offset, k offset l' This is the comb offset adjustment value, k TC p is the initial comb offset value for p port groups, and n SRS comb,offset f(n) is the first comb offset bias value for the p port groups in the first comb offset bias value set, where f(n) is the first comb offset bias value for the p port groups in the first comb offset bias value set. SRS ) is a random function, [Number 19] The method according to claim 40, wherein is a truncation operation. [Request Item 42] [Number 20] The method according to claim 38 or 39, wherein Δ" is indicated by a network device.

43. The frequency domain start position to which the aforementioned p port groups are mapped is [Math 21] And here, n shift N SC RB This is the frequency domain resource offset, k offset l' This is the comb offset adjustment value, k TC p is the initial comb offset value for the p port groups, and n SRS comb,offset is the first comb offset bias value, and f(n SRS ) is a random function, [Number 22] The method according to claim 42, wherein is a truncation operation.

44. It is a method of communication: From the set of Q cyclic shift values, N corresponding to the first SRS resource ap SRS The step of determining the cyclic shift value for each of the individual ports, N ap SRS Q is a positive integer, and Q is greater than 1 and N ap SRS The following are positive integers, for each stage: The aforementioned N ap SRS The step of sending SRS based on the cyclic shift value of each individual port and Methods that include...

45. The method according to claim 44, wherein the cyclic shift values ​​included in any two of the Q sets of cyclic shift values ​​are not consecutive, and the cyclic shift values ​​included in each of the Q sets of cyclic shift values ​​are consecutive.

46. The method further: The process includes receiving a fourth instruction from a network device, wherein the number of cyclic shift values ​​included in each of the Q sets of cyclic shift values ​​is L 1 This indicates that L 1 n is 1 or greater, with a maximum cyclic shift value of n. RS cs,max The following are positive integers, n SRS cs,max is a positive integer greater than 1. The method according to claim 44 or 45.

47. The q-th set of cyclic shift values ​​among the Q sets of cyclic shift values ​​is the starting cyclic shift value n CS start , the interval between any two adjacent sets of cyclic shift values ​​Δ, and the number of cyclic shift values ​​included in the aforementioned q set of cyclic shift values ​​L 1 , or the maximum cyclic shift value n RS cs,max Obtained based on at least one of the following: The interval between any two adjacent sets of cyclic shift values ​​is Δ, where Δ is between 1 and n. RS cs,max It is less than , and q is a positive integer in the range of 1 to Q. The method according to claim 46.

48. The set of cyclic shift values ​​for q is as follows: [Number 44] The method according to claim 47, wherein mod(・) is a modulo operation.

49. The cyclic shift value interval Δ between any two adjacent sets of cyclic shift values ​​is the maximum cyclic shift value n SRS cs,max The method according to claim 47 or 48, relating to a number Q in the set of cyclic shift values.

50. Δ=n SRS CS,max The method according to claim 49, wherein / Q.

51. The aforementioned N ap SRS The cyclic shift value of the i-th port among these ports is α i And, [Number 45] And α i n is a positive integer, and SRS CS,i n is the initial cyclic shift value of the i-th port, and n SRS cs,max This is the maximum cyclic shift value mentioned above. The method according to any one of claims 44 to 50.

52. The method according to claim 44, wherein the set of Q cyclic shift values ​​corresponds to a subset of Q cyclic shift bias values.

53. The first set of cyclic shift bias values, which includes the Q subsets of cyclic shift bias values, is Y 1 Including individual consecutive cyclic shift biases, Y 1 is 1 or more and the maximum cyclic shift value n RS cs,max The following is: The method according to claim 44.

54. Y 1 The method according to claim 53, wherein instruction information indicating is received from a network device.

55. The first set of cyclic shift bias values ​​is {0, 1 mod n} SRS CS,max ,…,(Y 1 -1) mod n SRS CS,max } is; or The first set of cyclic shift bias values ​​is {0, -1 mod n} SRS CS,max ,…,(-Y 1 +1) mod n SRS CS,max } and mod(・) is the modulo operation. The method according to claim 53 or 54.

56. The aforementioned N ap SRS The cyclic shift value of the i-th port among these ports is α i And, [Number 46] Y 1 is n SRS cs,max And K is either 1 or Y 1 = K・n SRS cs,max And K is a value configured by the network device or a preset value, or Y 1 f(n) is a value configured by the aforementioned network device, where K is 1; f(n) SRS ) is a random function; K is 1 or a preset value; n SRS CS,i n is the initial cyclic shift value of the i port; SRS cs,max is the maximum cyclic shift value; n SRS cs,offset This is the first cyclic shift bias value, The method according to any one of claims 53 to 55.

57. The method according to claim 52, wherein the cyclic shift biases included in each of the Q subsets of cyclic shift bias values ​​are continuous.

58. The method according to claim 57, wherein the cyclic shift bias interval between any two adjacent cyclic shift bias value subsets of the Q cyclic shift bias value subsets is equal.

59. The method according to claim 57 or 58, wherein all of the Q subsets of cyclic shift bias values ​​contain an equal number of cyclic shift bias values.

60. The number of the Q cyclic shift bias value subsets is Q, and the q-th cyclic shift bias value subset among the Q cyclic shift bias value subsets is {Δ q mod n SRS CS,max , (Δ q +1) mod n SRS CS,max …, (Δ q +S q -1) mod n SRS CS,max }or {-Δ q towards n SRS CS,max , (-Δ q -1) against n SRS CS,max …, (-Δ q -S q +1) against n SRS CS,max } Here, Δ 0 = 0, Δ q = Δ'・q, where q = 0, 1, ..., Q-1, and Δ' is the cyclic shift-bias interval between any two adjacent cyclic shift-bias value subsets, n SRS CS,max This is the maximum cyclic shift value, S q This is the number of cyclic shift bias values ​​included in the cyclic shift bias value subset of q, [Number 47] Y 1 The method according to any one of claims 57 to 60, wherein is the total number of cyclic shift bias values ​​included in the first set of cyclic shift bias values.

61. n SRS cs,max The method according to claim 60, wherein = Δ'・Q.

62. Q is on the same comb offset as N ap SRS Q is the number of ports out of the number of ports, or Q is the number of ports out of the N ap SRS N is the number of different cyclic shifts occupied by each port, or Q is the total number of ports corresponding to the first SRS resource. ap SRS is, or [Number 48] The method according to claim 60 or 61.

63. The aforementioned N ap SRS The cyclic shift value of the i-th port among these ports is α i And, [Number 49] n SRS CS,i f(n) is the initial cyclic shift value of the i-th port, where f(n) SRS ) is a random function, mod(・) is the modulo operation, and n SRS cs,offset This is the first cyclic shift bias value, [Number 50] The method according to claim 62, wherein is a truncation operation. [Request Item 64] [Number 51] The method according to claim 60 or 61.

65. The aforementioned N ap SRS The cyclic shift value of the i-th port among these ports is α i And, [Number 52] n SRS CS,i f(n) is the initial cyclic shift value of the i-th port, where f(n) SRS ) is a random function, modulo operation, and n SRS cs,offset This is the first cyclic shift bias value, The method according to claim 64.

66. A communication device comprising a unit for carrying out the method described in any one of claims 1 to 65.

67. A computer-readable storage medium storing a computer program, wherein when the computer program is executed, the method according to any one of claims 1 to 65 is performed.

68. A chip having a processor, wherein the processor is connected to a memory, the memory is configured to store a computer program, and the processor is configured to execute the computer program stored in the memory in order to carry out the method according to any one of claims 1 to 65.

69. A computer program product wherein, when the computer program product is executed on an electronic device, the electronic device is enabled to perform the method according to any one of claims 1 to 65.

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