CN117498997A

CN117498997A - Sounding reference signal transmission method and device, storage medium and terminal equipment

Info

Publication number: CN117498997A
Application number: CN202210886826.7A
Authority: CN
Inventors: 雷珍珠; 张萌
Original assignee: Spreadtrum Semiconductor Nanjing Co Ltd
Current assignee: Spreadtrum Semiconductor Nanjing Co Ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2024-02-02

Abstract

The application provides a sounding reference signal transmission method and device, a storage medium and terminal equipment, wherein the sounding reference signal transmission method comprises the following steps: for each transmitting time in each frequency hopping period, determining an initial frequency domain position for transmitting the sounding reference signal; calculating a position offset according to the identification of the service cell and/or the user identification; and calculating an actual frequency domain position based on the initial frequency domain position and the position offset, and transmitting the sounding reference signal at the actual frequency domain position. The scheme for reducing interference between the sounding reference signals sent by the terminal equipment under different receiving and transmitting nodes is provided, so that user performance under a coherent joint sending scene is improved.

Description

Sounding reference signal transmission method and device, storage medium and terminal equipment

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method and apparatus for transmitting a sounding reference signal, a storage medium, and a terminal device.

Background

In the scenario of coherent joint transmission (Coherent Joint Transmission, cqt) of the fifth generation mobile communication technology (5th generation mobile networks or 5th generation wireless systems,5G), multiple transceiver nodes (Transmission Receive Point, TRP) need to measure sounding reference signals (Sounding Reference Signal, SRS) transmitted by the same terminal Equipment (UE), which requires that the power of the sounding reference signals transmitted by the terminal Equipment needs to be increased.

After the power of the sounding reference signal sent by the terminal equipment is improved, the interference between the sounding reference signals sent by the terminal equipment under different receiving and transmitting nodes is improved. Referring to fig. 1, a terminal UE1 and a terminal UE2 both transmit sounding reference signals to a transceiver node TRP2, where the sounding reference signals transmitted by the two are mutually interfered; accordingly, the terminal equipment UE1 and the terminal equipment UE3 both transmit the sounding reference signals to the transceiver node TRP1, and the sounding reference signals transmitted by the terminal equipment UE1 and the terminal equipment UE3 interfere with each other, which affects the user performance in the coherent joint transmission scenario.

Therefore, a solution for reducing interference between sounding reference signals sent by terminal devices under different transceiver nodes is needed.

Disclosure of Invention

The application provides a sounding reference signal transmission method and device, and provides a scheme for reducing interference between sounding reference signals transmitted by terminal equipment under different receiving and transmitting nodes so as to improve user performance under a coherent joint transmission scene.

In order to achieve the above purpose, the present application provides the following technical solutions:

in a first aspect, a sounding reference signal transmission method is provided, where the sounding reference signal transmission method includes: for each transmitting time in each frequency hopping period, determining an initial frequency domain position for transmitting the sounding reference signal; calculating a position offset according to the identification of the service cell and/or the user identification; and calculating an actual frequency domain position based on the initial frequency domain position and the position offset, and transmitting the sounding reference signal at the actual frequency domain position.

Optionally, the calculating the position offset according to the identity of the serving cell includes: and performing at least one modulo operation on the frequency domain position number in the uplink bandwidth by the identification of the service cell to obtain the position offset.

Optionally, the calculating the position offset according to the identity of the serving cell includes: for each sending time in the first frequency hopping period, performing at least one modulo operation on the number of frequency domain positions in the uplink bandwidth by the identifier of the serving cell to obtain the position offset; and for each sending time in the non-first frequency hopping period, increasing the position offset in the last frequency hopping period by a preset offset, and performing modulo operation with the frequency domain position number to obtain the position offset.

Optionally, calculating the position offset using the following formula includes: y is Y ₀ ＝cellidmodN _b ,Y _k ＝(Y _k-1 +1)modN _b Wherein Y is ₀ Representing the position offset of each sending time in the first frequency hopping period, cellid representing the identification of the service cell, N _b Representing the number of frequency domain positions, Y _k Represents the position offset of each transmission timing in the (k+1) th frequency hopping period, Y _k-1 Indicating the position offset of each transmission opportunity in the kth-1 frequency hopping period.

Optionally, the calculating the position offset according to the identity of the serving cell includes: for each sending time in the first frequency hopping period, determining that the position offset is zero; for each sending time in the second frequency hopping period, performing at least one modulo operation on the number of frequency domain positions in the uplink bandwidth by the identifier of the serving cell to obtain the position offset; and for each sending time in other frequency hopping periods, increasing the position offset in the last frequency hopping period by a preset offset, and performing modulo operation with the frequency domain position number to obtain the position offset.

Optionally, calculating the position offset using the following formula includes: y is Y ₀ ＝0，Y ₁ ＝cellidmodN _b ,Y _k ＝(Y _k-1 +1)modN _b Wherein Y is ₀ Representing the position offset of each sending time in the first frequency hopping period, Y ₁ Representing the position offset of each sending time in the second frequency hopping period, cellid representing the identification of the service cell, N _b Representing the number of frequency domain positions, Y _k Represents the position offset of each transmission opportunity in the (k+1) th frequency hopping period,Y _k-1 indicating the position offset of each transmission opportunity in the kth-1 frequency hopping period.

Optionally, the calculating the position offset according to the user identifier includes: for each sending time in the first frequency hopping period, determining that the position offset is zero; for each sending time in the second frequency hopping period, performing at least one modulo operation on the user identifier and the frequency domain position number in the uplink bandwidth to obtain the position offset; and for each sending time in other frequency hopping periods, calculating the product of the position offset in the last frequency hopping period and a preset coefficient, performing modulo operation on the total number of the user identifiers, and performing at least one modulo operation on the frequency domain position number to obtain the position offset.

Optionally, calculating the position offset using the following formula includes: y is Y ₀ ＝0，Y ₁ ＝n _RNTI modN _b ,Y _k ＝((A×Y _k-1 )modD)modN _b Wherein Y is ₀ Representing the position offset of each sending time in the first frequency hopping period, Y ₁ Indicating the position offset of each sending time in the second frequency hopping period, n _RNTI Representing the user identity, N _b Representing the number of frequency domain positions, Y _k Represents the position offset of each transmission timing in the (k+1) th frequency hopping period, Y _k-1 And (3) representing the position offset of each sending occasion in the k-1 frequency hopping period, wherein A represents the preset coefficient, and D represents the total number of the user identifiers.

Optionally, the calculating the position offset according to the identity of the serving cell and the user identity includes: for each sending time in the first frequency hopping period, determining that the position offset is zero; for each sending time in the second frequency hopping period, performing at least one modulo operation on the user identifier and the frequency domain position number in the uplink bandwidth to obtain the position offset; and for each sending time in other frequency hopping periods, calculating the product of the position offset in the last frequency hopping period and a preset coefficient, performing modular operation on the product and the total number of the user identifiers, performing summation calculation on the product and the identifiers of the service cells, and performing at least one modular operation on the product and the frequency domain position number to obtain the position offset.

Optionally, calculating the position offset using the following formula includes: y is Y ₀ ＝0，Y ₁ ＝n _RNTI modN _b ,Y _k ＝((A×Y _k-1 )modD+cellid)modN _b Wherein Y is ₀ Representing the position offset of each sending time in the first frequency hopping period, Y ₁ Indicating the position offset of each sending time in the second frequency hopping period, n _RNTI Representing the user identity, N _b Representing the number of frequency domain positions, Y _k Represents the position offset of each transmission timing in the (k+1) th frequency hopping period, Y _k-1 And (3) representing the position offset of each sending time in the k-1 frequency hopping period, wherein A represents the preset coefficient, D represents the total number of the user identifiers, and cellid represents the identifier of the service cell.

Optionally, the calculating the position offset according to the identity of the serving cell and the user identity includes: for each sending time in the first frequency hopping period, determining that the position offset is zero; for each sending time in the second frequency hopping period, performing at least one modulo operation on the number of frequency domain positions in the uplink bandwidth by the identifier of the serving cell to obtain the position offset; and for each sending time in other frequency hopping periods, performing modular operation on the user identification and the total number of the user identifications, summing a modular result and a position offset in the last frequency hopping period, and performing at least one modular operation on the position offset and the frequency domain position number to obtain the position offset.

Optionally, calculating the position offset using the following formula includes: y is Y ₀ ＝0，Y ₁ ＝cellidmodN _b ,Y _k ＝(Y _k-1 +(n _RNTI modD))modN _b Wherein Y is ₀ Representing the position offset of each sending time in the first frequency hopping period, Y ₁ Indicating the position offset of each sending time in the second frequency hopping period, cellid indicating the small serviceIdentification of zone, N _b Representing the number of frequency domain positions, Y _k Represents the position offset of each transmission timing in the (k+1) th frequency hopping period, Y _k-1 Indicating the position offset of each transmission time in the (k-1) th frequency hopping period, n _RNTI Representing the user identities, D representing the total number of user identities.

In a second aspect, the present application further discloses another sounding reference signal transmission method, where the sounding reference signal transmission method includes: for each sending time in each frequency hopping period, determining an initial frequency domain position for receiving the sounding reference signal; calculating a position offset according to the identification of the service cell and/or the user identification; and calculating an actual frequency domain position based on the initial frequency domain position and the position offset, and receiving the sounding reference signal at the actual frequency domain position.

In a third aspect, the present application further discloses a sounding reference signal transmission apparatus, where the sounding reference signal transmission apparatus includes: the processing module is used for determining an initial frequency domain position for transmitting the sounding reference signal for each transmitting opportunity in each frequency hopping period; the processing module calculates the position offset according to the identification of the serving cell and/or the user identification, and calculates the actual frequency domain position based on the initial frequency domain position and the position offset; and the communication module is used for sending the sounding reference signal at the actual frequency domain position.

In a fourth aspect, the present application further discloses a sounding reference signal transmission apparatus, where the sounding reference signal transmission apparatus includes: the processing module is used for determining an initial frequency domain position for transmitting the sounding reference signal for each transmitting opportunity in each frequency hopping period; the processing module calculates the position offset according to the identification of the serving cell and/or the user identification, and calculates the actual frequency domain position based on the initial frequency domain position and the position offset; and the communication module is used for receiving the sounding reference signal at the actual frequency domain position.

In a fifth aspect, there is provided a computer readable storage medium having stored thereon a computer program for execution by a processor to perform any one of the methods provided in the first or second aspects.

In a sixth aspect, there is provided a communications apparatus comprising a memory having stored thereon a computer program executable on the processor, and a processor executing the computer program to perform any one of the methods provided in the first aspect.

In a seventh aspect, there is provided a communications apparatus comprising a memory and a processor, the memory having stored thereon a computer program executable on the processor, characterised in that the processor is operative to execute the computer program to perform any one of the methods provided in the second aspect.

In an eighth aspect, there is provided a computer program product having a computer program stored thereon, the computer program being executable by a processor to perform any one of the methods provided in the first or second aspects.

A ninth aspect provides a communication system comprising the above terminal device and the above network device.

Compared with the prior art, the technical scheme of the embodiment of the application has the following beneficial effects:

in the technical scheme, the terminal equipment can determine the initial frequency domain position for transmitting the sounding reference signal, and the initial frequency domain positions determined by different terminal equipment have larger overlapping rate; therefore, the position offset can be calculated according to the identification of the serving cell and/or the user identification, the actual frequency domain position is obtained by calculating the initial frequency domain position and the position offset, and the terminal equipment under different receiving and transmitting nodes can be ensured to transmit the sounding reference signal at different frequency domain positions due to different actual frequency domain positions calculated by the terminal equipment under different receiving and transmitting nodes, so that interference among the sounding reference signals transmitted by the terminal equipment under different receiving and transmitting nodes is reduced.

Drawings

FIG. 1 is a schematic diagram of a specific application scenario in the prior art;

Fig. 2 is an interaction flow chart of a sounding reference signal transmission method provided in an embodiment of the present application;

FIG. 3 is a schematic diagram of a tree structure for determining a frequency hopping pattern according to an embodiment of the present application;

fig. 4 is an interaction flow chart of another sounding reference signal transmission method provided in an embodiment of the present application;

fig. 5 is a schematic structural diagram of a sounding reference signal transmission apparatus according to an embodiment of the present application;

fig. 6 is a schematic hardware structure of a sounding reference signal transmission apparatus according to an embodiment of the present application.

Detailed Description

Communication systems to which embodiments of the present application are applicable include, but are not limited to, long term evolution (long term evolution, LTE) systems, fifth generation (5G) systems, NR systems, and future evolution systems or multiple communication convergence systems. The 5G system may be a non-independent Networking (NSA) 5G system or an independent networking (SA) 5G system. The technical scheme is also applicable to different network architectures, including but not limited to a relay network architecture, a dual link architecture, a Vehicle-to-evaluation architecture, and the like.

The present application relates generally to communication between a terminal device and a network device. Wherein:

The network device in the embodiments of the present application may also be referred to as an access network device, for example, may be a Base Station (BS) (also referred to as a base station device), where the network device is a device deployed in a radio access network (Radio Access Network, RAN) to provide a wireless communication function. For example, the device for providing base station functionality in the second generation (2 nd-generation, 2G) network comprises a base radio transceiver station (base transceiver station, BTS), the device for providing base station functionality in the third generation (3 rd-generation, 3G) network comprises a node B (NodeB), the device for providing base station functionality in the fourth generation (4 th-generation, 4G) network comprises an evolved node B (eNB), the device for providing base station functionality in the wireless local area network (wireless local area networks, WLAN) is an Access Point (AP), the next generation base station node (next generation node base station, gNB) in the NR is an Access Point (AP), and the node B (ng-eNB) continues to evolve, wherein the communication between the gNB and the terminal device is performed using NR technology, and the communication between the ng-eNB and the terminal device is performed using evolved universal terrestrial radio access (Evolved Universal Terrestrial Radio Access, E-UTRA) technology, both the gNB and the ng-eNB may be connected to the 5G core network. The network device in the embodiment of the present application further includes a device that provides a base station function in a new communication system in the future, and the like.

The terminal device (terminal equipment) in embodiments of the present application may refer to various forms of access terminals, subscriber units, subscriber stations, mobile Stations (MSs), remote stations, remote terminals, mobile devices, user terminals, wireless communication devices, user agents, or user equipment. The terminal device may also be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc., as the embodiments of the application are not limited in this respect. The terminal device may also be referred to as a User Equipment (UE), a terminal, etc.

As described in the background, a solution for reducing interference between sounding reference signals sent by terminal devices under different transceiver nodes is needed.

Referring to fig. 2, the method provided in the present application includes:

step 201: for each transmission occasion in each frequency hopping period, the terminal device determines an initial frequency domain position at which to transmit the sounding reference signal.

Step 202: and the terminal equipment calculates the position offset according to the identification of the service cell and/or the user identification.

Step 203: the terminal equipment calculates an actual frequency domain position based on the initial frequency domain position and the position offset;

step 204: and transmitting the sounding reference signal at the actual frequency domain position.

It should be noted that the serial numbers of the steps in the present embodiment do not represent a limitation on the execution sequence of the steps.

It will be appreciated that in a specific implementation, the sounding reference signal transmission method may be implemented in a software program, where the software program runs on a processor integrated inside a chip or a chip module. The method may also be implemented by combining software with hardware, which is not limited in this application.

In this embodiment, in order to perform uplink channel sounding, when the network device allocates resources for transmitting sounding reference signals to the terminal devices, it is necessary to ensure that the sounding reference signals transmitted by the terminal devices are orthogonal to each other. A sounding reference signal "frequency hopping" (Frequency Hopping) pattern is defined in long term evolution (Long Term Evolution, LTE). In this frequency hopping mode, although the bandwidth of the sounding reference signal transmitted by the terminal device at each time is smaller, the sounding reference signal can be transmitted at different frequency domain positions (also referred to as frequency hopping positions) at different times, and after one SRS frequency hopping period, a wider bandwidth can be completely covered. In other words, multiple hopping locations within the same hopping period can completely cover the entire bandwidth and/or uplink bandwidth. Different terminal devices in the same cell, although possibly having the same frequency hopping pattern, can be identified by the sounding reference signal frequency domain position index n _RRC As a "reference" to avoid collision of the sounding reference signal transmission frequency domain positions, and do not interfere with each other.

Steps 201-204 in the present application are performed by the terminal device during the process of calculating the frequency hopping position (i.e. the actual frequency domain position). The terminal device completes the frequency hopping transmission of the sounding reference signal through the steps 201-204.

In the implementation of step 201, there are multiple transmission opportunities in each frequency hopping period, and each transmission opportunity needs to calculate a corresponding actual frequency domain position. The number of transmission occasions in each frequency hopping period may reflect the frequency hopping times, and specifically may be the number of frequency domain positions in the uplink bandwidth, for example, if there are five frequency domain positions in the uplink bandwidth, the number of transmission occasions in each frequency hopping period is five, and the frequency hopping times are five.

Specifically, the terminal device may calculate the initial frequency domain position in a manner of determining the initial frequency domain position of the transmitted sounding reference signal, which may be a calculation manner specified in the communication standard, for example.

Specifically, a "tree" structure is employed in the third generation partnership project (3rd Generation Partnership Project,3GPP) specification to assist in defining the sounding reference signal hopping pattern. This "tree" contains a maximum of 4 levels, marked with b=0, 1,2,3 in turn, where b=0 corresponds to the highest level of the "tree", i.e. the root node. In layer b, each node on the "tree" contains a number of Resource Blocks (RBs) in the frequency domain equal to m _SRS,b And N _b The number of branch nodes at layer b, which are included in the node at layer b-1, is represented. In the tree structure, each node at the b-th layer can be uniquely determined by a group of identifiers { n0, n1, …, nb } of the 0-b-th layers (0.ltoreq.nb)<Nb). Each node in the tree represents the bandwidth and starting offset occupied by the sounding reference signal in the frequency domain. See fig. 3 for an example tree structure in which a numerical designation n is shown in each node _b 。

If the network equipment enables the sounding reference signal frequency hopping, the terminal equipment configures B according to the sounding reference signal bandwidth configured by the network equipment on one hand _SRS Can be based on b=b _SRS To determine the layer in the tree to obtain the transmitted sounding reference signalThe used bandwidth isOn the other hand, the terminal equipment configures an SRS frequency hopping bandwidth parameter b according to the network equipment _hop Can be based on b=b _hop To determine another layer in the tree to obtain the total bandwidth covered by the sounding reference signal frequency hopping equal to +.>Thus, based on the tree structure, the sounding reference signal hopping pattern can be conveniently defined: counting n according to transmission opportunity of sounding reference signal _SRS To determine the bandwidth in which the corresponding sounding reference signal is transmitted in the frequency domain, i.e., to determine a set of identities n0, n1, …, nb. In section 5.5.3.2 of 3GPP LTE specification TS 36.211, n is defined using equation (1) _b (b＝0,1,…,B _SRS )：

The physical meaning of equation (1) can be understood from two aspects, namely, the sounding reference signal frequency domain location index n configured according to the network device _RRC Determining a base position of sounding reference signal transmission; on the other hand, on the basis, from b _hop +1 layer starts to B _SRS Layer, add a frequency domain offset F of the hopping pattern of the sounding reference signal _b (n _SRS ) The frequency domain position (i.e., the initial frequency domain position in the present application) of the transmitted sounding reference signal is finally obtained. Note that equation (1) unifies both cases of sounding reference signal hopping disabling and enabling, and the base station only needs to configure b for the case of disabling sounding reference signal hopping _hop ≥B _SRS Then, the next branch of the upper branch is not entered to calculate the frequency domain offset F of the frequency hopping pattern _b (n _SRS )。

However, the initial frequency domain position, i.e. index n, calculated by the terminal equipment under different transceiving nodes according to the above formula (1) _b The indicated frequency domain locations have a large overlap rate. In the prior art, terminal devices under different receiving and transmitting nodes directly send sounding reference signals at initial frequency domain positions, which results in larger interference between the sounding reference signals.

In this embodiment of the present application, in the implementation of step 202, the terminal device may calculate the position offset according to the identifier of the serving cell, may calculate the position offset according to the user identifier, and may calculate the position offset according to the identifier of the serving cell and the user identifier.

Because the user identifiers of the terminal devices under different receiving and transmitting nodes are different, the identifiers of the service cells are also different, and the calculated position offset on the basis of the identifiers is also different.

In specific implementation, the calculating the position offset according to the identifier of the serving cell and/or the user identifier may directly use the identifier of the serving cell and/or the user identifier as the position offset, or may perform mathematical operation on the identifier of the serving cell and/or the user identifier and a preset coefficient to obtain the position offset, where the selection of the preset coefficient may be set according to an actual application scenario, which is not limited in this application.

Further, in the implementation of step 203, the position offset is increased based on the initial frequency domain position to obtain an actual frequency domain position, that is, the frequency domain position where the sounding reference signal is transmitted. According to the method and the device, the actual frequency domain positions used by the terminal equipment under different receiving and transmitting nodes for sending the sounding reference signals are different, so that interference among the sounding reference signals is reduced, and communication performance is improved.

It should be noted that, by determining the actual frequency domain position of the sounding reference signal in one frequency hopping period through the above steps 201 to 204, the frequency hopping pattern used by the terminal device to transmit the sounding reference signal may be obtained by determining the actual frequency domain position in a plurality of frequency hopping periods.

Several ways of calculating the positional shift amount are described below, respectively.

Mode 1, performing at least one modulo operation on the number of frequency domain positions in an uplink bandwidth by using an identifier of a serving cell to obtain a position offset.

In this embodiment of the present application, for the same terminal device, the position offset of each transmission opportunity in each frequency hopping period is the same. The amount of positional offset within each hopping period is different for different terminal devices.

In a specific implementation, the initial frequency domain position and the actual frequency domain position are each represented by a frequency domain position index, for example, the frequency domain position index is divided into 5 frequency domain positions in the uplink bandwidth, the indexes are respectively 0, 1, 2, 3, 4 and 5, the index 0 represents the first frequency domain position, the index 1 represents the second frequency domain position, and so on, and the index 4 represents the fifth frequency domain position. In this case, the value of the position offset needs to be limited within the number of frequency domain positions in the uplink bandwidth, that is, the value of the position offset is less than or equal to the number of frequency domain positions in the uplink bandwidth, so that the identity of the serving cell can be subjected to modulo operation on the number of frequency domain positions in the uplink bandwidth when the position offset is calculated.

Specifically, the service cell identifier performs a modulo operation on the number of frequency domain positions in the uplink bandwidth, and may calculate the position offset by using formula (2):

Y _k ＝cellidmodN _b ，k＝0,1,2… (2)

wherein Y is _k Representing the position offset of each sending time in the (k+1) th frequency hopping period, cellid representing the identification of the service cell, N _b Representing the number of frequency domain locations.

Combining the formula (1) for calculating the initial frequency domain position with the formula (2) for calculating the position offset to obtain the calculated actual frequency domain position n _b Formula (3) of (2). Equation (3) is as follows:

in another embodiment, the actual frequency domain position n can also be calculated using equation (4) _b ：

Unlike equation (3), in this embodiment, the frequency domain location number in the uplink bandwidth is subjected to modulo operation twice by the serving cell identifier to obtain a location offset, i.e., location offset Y _k ＝(cellidmodN _b )modN _b 。

It should be noted that, the number of frequency domain positions in the uplink bandwidth may be subjected to more modulo operation by using the identifier of the serving cell, which is not limited in this application.

Mode 2, if the current frequency hopping period is the first frequency hopping period, performing at least one modulo operation on the number of frequency domain positions in the uplink bandwidth by using the identifier of the serving cell to obtain a position offset in the current frequency hopping period; if the current frequency hopping period is not the first frequency hopping period, increasing the position offset in the last frequency hopping period of the current frequency hopping period by a preset offset, and performing modulo operation with the frequency domain position number to obtain the position offset in the current frequency hopping period.

In the embodiment of the present application, for the same terminal device, the position offsets in different frequency hopping periods are different.

Specifically, the positional shift amount can be calculated using the formula (5):

Y ₀ ＝cellidmodN _b ,Y _k ＝(Y _k-1 +1)modN _b , (5)

wherein Y is ₀ Representing the position offset of each transmission timing in the first frequency hopping period, Y ₁ Representing the position offset of each transmission timing in the first frequency hopping period, Y _k Representing the position offset of each sending time in the (k+1) th frequency hopping period, cellid representing the identification of the service cell, N _b Representing the number of frequency domain positions, Y _k-1 Indicating the position offset of each transmission opportunity in the kth-1 frequency hopping period.

It should be noted that, in the formula (5), the preset offset is 1, and in practical applicationThe preset offset may be any positive integer such as 2, 3, 4, etc. For example, when the preset offset is 2, Y _k ＝(Y _k-1 +2)modN _b . The preset offset may be any negative integer such as-2, -3, -4, etc., in this case, the absolute value may be taken after the position offset in the last frequency hopping period of the current frequency hopping period is increased by the preset offset, and the modulo operation is performed with the frequency domain position number, which is not limited in this application.

In addition, in the formula (5), the number N of frequency domain positions in the uplink bandwidth can be calculated _b More modulo operations are performed, which is not limited in this application.

Combining the formula (1) for calculating the initial frequency domain position with the formula (5) for calculating the position offset to obtain the calculated actual frequency domain position n _b Formula (6) of (2). Equation (6) is as follows:

mode 3, for each transmission opportunity in the first frequency hopping period, determining that the position offset is zero; for each sending time in the second frequency hopping period, performing at least one modulo operation on the number of frequency domain positions in the uplink bandwidth by using the identifier of the serving cell to obtain a position offset; for each sending time in other frequency hopping periods, increasing the position offset in the last frequency hopping period by a preset offset, and performing modulo operation with the frequency domain position number to obtain the position offset.

Unlike in mode 2, the positional shift amount of each transmission timing in the first hopping period is zero. That is, the initial frequency domain position of each transmission opportunity in each hopping period is shifted from the second hopping period.

Specifically, the positional shift amount can be calculated using the formula (7):

Y ₀ ＝0，Y ₁ ＝cellidmodN _b ,Y _k ＝(Y _k-1 +1)modN _b , (7)

wherein Y is ₀ Representing the position offset of each transmission timing in the first frequency hopping period, Y ₁ Indicating the position offset of each sending time in the second frequency hopping period, cellid indicating the identification of the service cell, N _b Representing the number of frequency domain positions, Y _k Represents the position offset of each transmission timing in the (k+1) th frequency hopping period, Y _k-1 Indicating the position offset of each transmission opportunity in the kth-1 frequency hopping period.

Combining the formula (1) for calculating the initial frequency domain position with the formula (7) for calculating the position offset to obtain the calculated actual frequency domain position n _b Formula (6) of (2).

Mode 4, for each sending time in the first frequency hopping period, determining that the position offset is zero; for each sending time in the second frequency hopping period, performing at least one modulo operation on the user identifier and the frequency domain position number in the uplink bandwidth to obtain the position offset; and for each sending time in other frequency hopping periods, calculating the product of the position offset in the last frequency hopping period and a preset coefficient, performing modulo operation on the total number of the user identifiers, and performing at least one modulo operation on the frequency domain position number to obtain the position offset.

In the embodiment of the present application, for the same terminal device, the position offsets in different frequency hopping periods are different. The user identity may be a user radio network temporary identity (Cell Radio Network Temporary Identity, C-RNTI), a temporary radio network temporary identity (temporal-CRNTI), or the like.

Specifically, the positional shift amount can be calculated using the formula (8):

Y ₀ ＝0，Y ₁ ＝n _RNTI modN _b ,Y _k ＝((A×Y _k-1 )modD)modN _b , (8)

wherein A represents a preset coefficient, and D represents the total number of user identifiers.

Combining the formula (1) for calculating the initial frequency domain position with the formula (8) for calculating the position offset to obtain the calculated actual frequency domain position n _b Formula (6) of (2).

In a specific embodiment, the total number of user identities D is 65537 and the preset coefficient a is 39827.

Specifically, the positional offset may be calculated using formula (9):

Y ₀ ＝0，Y ₁ ＝n _RNTI modN _b ,Y _k ＝((39827×Y _k-1 )mod65537)modN _b , (9)

it should be noted that the preset coefficient a in the formula (8) may be any other practical value, and the total number of user identities D may also change with the evolution of the communication system, which is not limited in this application.

Mode 5, for each transmission opportunity in the first frequency hopping period, determining that the position offset is zero; for each sending time in the second frequency hopping period, performing at least one modulo operation on the user identifier and the frequency domain position number in the uplink bandwidth to obtain the position offset; and for each sending time in other frequency hopping periods, calculating the product of the position offset in the last frequency hopping period and a preset coefficient, performing modular operation on the product and the total number of the user identifiers, performing summation calculation on the product and the identifiers of the service cells, and performing at least one modular operation on the product and the frequency domain position number to obtain the position offset.

Different from the foregoing modes 1 to 4, mode 5 is that the position offset is calculated by combining the user identifier and the identifier of the serving cell, so that it is further ensured that the actual frequency domain positions used by the terminal devices under different transceiver nodes to transmit the sounding reference signal are different.

Specifically, the positional shift amount can be calculated using the formula (10):

Y ₀ ＝0，Y ₁ ＝n _RNTI modN _b ,Y _k ＝((A×Y _k-1 )modD+cellid)modN _b , (10)

wherein Y is ₁ Represents the position offset in the first frequency hopping period, n _RNTI Representing user identity, N _b Representing the number of frequency domain positions, Y _k Represents the position offset in the (k+1) th frequency hopping period, Y _k-1 And (3) representing the position offset in the k-1 frequency hopping period, wherein A represents a preset coefficient, D represents the total number of user identifiers, and cellid represents the identifier of the serving cell.

Combining the formula (1) for calculating the initial frequency domain position with the formula (10) for calculating the position offset to obtain the calculated actual frequency domain position n _b Formula (6) of (2).

Mode 6, for each sending time in the first frequency hopping period, determining that the position offset is zero;

for each sending time in the second frequency hopping period, performing at least one modulo operation on the number of frequency domain positions in the uplink bandwidth by the identifier of the serving cell to obtain the position offset;

And for each sending time in other frequency hopping periods, performing modular operation on the user identification and the total number of the user identifications, summing a modular result and a position offset in the last frequency hopping period, and performing at least one modular operation on the position offset and the frequency domain position number to obtain the position offset.

Mode 6 also calculates the position offset by combining the user identifier and the identifier of the serving cell, and the specific manner of calculating the position offset is different from that of mode 5.

Specifically, the positional shift amount can be calculated using the formula (11):

Y ₀ ＝0，Y ₁ ＝cellidmodN _b ,Y _k ＝(Y _k-1 +(n _RNTI modD))modN _b , (11)

In formulas (8), (10) and (11), the number N of frequency domain positions in the uplink bandwidth may be also calculated _b More modulo operations are performed, which is not limited in this application.

Further, when calculating the position offset in combination with the user identifier and the identifier of the serving cell, the position offset may also be calculated using the following formula:

Y ₀ ＝0，Y ₁ ＝n _RNTI modN _b ,Y _k ＝((A×Y _k-1 )modD+cellid+1)modN _b , (12)

Y ₀ ＝0，Y ₁ ＝cellidmodN _b ,Y _k ＝(A×Y _k-1 +(n _RNTI modD))modN _b , (13)

in embodiments 4 to 6, the initial frequency domain position of each transmission timing in each frequency hopping period is shifted from the second frequency hopping period, but in practical implementation, the initial frequency domain position of each transmission timing in each frequency hopping period may be shifted from the first frequency hopping period, which is not limited in this application.

Taking equation (8) in equation 4 as an example, the equation may be replaced with the following equation:

Y ₀ ＝n _RNTI modN _b ,Y _k ＝((A×Y _k-1 )modD)modN _b ,。

other formulas are the same and are not described in detail herein.

It can be understood that the above formula can be further reasonably deformed to calculate the position offset, so that the position offset value is ensured to be smaller than or equal to the number of frequency domain positions in the uplink bandwidth, which is not limited in the application.

In an alternative embodiment of the present application, the terminal device may determine the actual frequency domain location in a one-step calculation manner. Specifically, for each sending time in each frequency hopping period, the terminal device calculates an actual frequency domain position according to the identifier of the serving cell and/or the user identifier and the configuration parameter of the sounding reference signal, and the terminal device sends the sounding reference signal at the actual frequency domain position. The configuration parameters of the sounding reference signal may be preconfigured by the network device, and the configuration parameters of the sounding reference signal are used for calculating an initial frequency domain position, where the initial frequency domain position has a position offset from an actual frequency domain position.

For example, the configuration parameters of the sounding reference signal may be the respective parameters shown in equation (1).

Specifically, the terminal device may implement one-step calculation of the actual frequency domain position by using formulas (3), (4) and (6), and reference the foregoing embodiments for specific implementation of the embodiments of the present application may be omitted herein.

Referring to fig. 4, fig. 4 illustrates an exemplary interaction flow between a network device and a terminal device.

Step 401, for each transmission opportunity in each frequency hopping period, the network device determines an initial frequency domain position for receiving the sounding reference signal.

Step 402, the network device calculates a position offset according to the identity of the serving cell and/or the user identity.

Step 403, the network device calculates an actual frequency domain location based on the initial frequency domain location and the location offset.

Step 404, the network device receives the sounding reference signal at the actual frequency domain location.

In this embodiment of the present application, when receiving a sounding reference signal, a network device needs to calculate an actual frequency domain position where the sounding reference signal is received first, and receive the sounding reference signal at the actual frequency domain position.

The specific manner of calculating the actual frequency domain position by the network device is the same as the specific manner of calculating the actual frequency domain position by the terminal device, and the specific reference may be made to the formulas (1) - (13) and the corresponding embodiments.

For more specific implementations of the embodiments of the present application, please refer to the foregoing embodiments, and the details are not repeated here.

Referring to fig. 5, fig. 5 illustrates a sounding reference signal transmission apparatus 50, and the communication apparatus 50 may include a processing module 501 and a communication module 502.

When the sounding reference signal transmission apparatus 50 is used for a terminal device, the processing module 501 is configured to determine an initial frequency domain position for transmitting a sounding reference signal in a current frequency hopping period; the processing module 501 further calculates a position offset according to the identity of the serving cell and/or the user identity, and calculates an actual frequency domain position based on the initial frequency domain position and the position offset;

the communication module 502 is configured to send sounding reference signals at actual frequency domain locations. In a specific implementation, the above-mentioned sounding reference signal transmission apparatus 50 may correspond to a chip having a sounding reference signal transmission function in a terminal device, such as an SOC, a baseband chip, etc.; or the terminal equipment comprises a chip module with a detection reference signal transmission function; or corresponds to a chip module having a chip with a data processing function or corresponds to a terminal device.

When the sounding reference signal transmission apparatus 50 is used for a network device, the processing module 501 is configured to determine an initial frequency domain position for transmitting a sounding reference signal in a current frequency hopping period; the processing module 501 further calculates a position offset according to the identity of the serving cell and/or the user identity, and calculates an actual frequency domain position based on the initial frequency domain position and the position offset;

The communication module 502 is configured to send the sounding reference signal at an actual frequency domain location.

In a specific implementation, the sounding reference signal transmission apparatus 50 may correspond to a Chip with a sounding reference signal transmission function in a network device, such as a System-On-a-Chip (SOC), a baseband Chip, etc.; or the network equipment comprises a chip module with a detection reference signal transmission function; or corresponds to a chip module having a chip with a data processing function or corresponds to a network device.

Other relevant descriptions of the sounding reference signal transmitting apparatus 50 may refer to those in the foregoing embodiments, and are not repeated here.

With respect to each of the apparatuses and each of the modules/units included in the products described in the above embodiments, it may be a software module/unit, a hardware module/unit, or a software module/unit, and a hardware module/unit. For example, for each device or product applied to or integrated on a chip, each module/unit included in the device or product may be implemented in hardware such as a circuit, or at least part of the modules/units may be implemented in software program, where the software program runs on a processor integrated inside the chip, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same component (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal device, each module/unit included in the device may be implemented in hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal device, or at least some modules/units may be implemented in a software program, where the software program runs on a processor integrated within the terminal device, and the remaining (if any) part of the modules/units may be implemented in hardware such as a circuit.

The embodiment of the application also discloses a storage medium, which is a computer readable storage medium, and a computer program is stored on the storage medium, and the computer program can execute the steps of the methods shown in fig. 1 to 3 when running. The storage medium may include Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic or optical disks, and the like. The storage medium may also include non-volatile memory (non-volatile) or non-transitory memory (non-transitory) or the like.

Referring to fig. 6, the embodiment of the application further provides a hardware structure schematic diagram of the communication device. The apparatus comprises a processor 601, a memory 602 and a transceiver 603.

The processor 601 may be a general purpose central processing unit (central processing unit, CPU), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of programs in accordance with aspects of the present application. Processor 601 may also include multiple CPUs, and processor 601 may be a single-Core (CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, or processing cores for processing data (e.g., computer program instructions).

The memory 602 may be a ROM or other type of static storage device, a RAM or other type of dynamic storage device that can store static information and instructions, or that can store information and instructions, or that can be an electrically erasable programmable read-only memory (EEPROM), a compact disk read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, as the embodiments of the present application do not limit in any way. The memory 602 may be separate (in this case, the memory 602 may be located outside the apparatus or inside the apparatus), or may be integrated with the processor 601. Wherein the memory 602 may contain computer program code. The processor 601 is configured to execute computer program code stored in the memory 602, thereby implementing the methods provided by the embodiments of the present application.

The processor 601, the memory 602 and the transceiver 603 are connected by a bus. The transceiver 603 is used to communicate with other devices or communication networks. Alternatively, the transceiver 603 may include a transmitter and a receiver. The means for implementing the receiving function in the transceiver 603 may be regarded as a receiver for performing the steps of receiving in the embodiments of the present application. The means for implementing the transmitting function in the transceiver 603 may be regarded as a transmitter for performing the steps of transmitting in the embodiments of the present application.

While the schematic structural diagram shown in fig. 6 is used to illustrate the structure of the terminal device according to the above embodiment, the processor 601 is configured to control and manage the actions of the terminal device, for example, the processor 601 is configured to support the terminal device to perform the actions performed by the terminal device in step 201, step 202, step 203, and step 204 in fig. 2, and/or in other processes described in the embodiments of the present application. The processor 601 may communicate with other network entities, such as with the network devices described above, through the transceiver 603. The memory 602 is used for storing program codes and data for the terminal device.

While the schematic diagram shown in fig. 6 is used to illustrate the structure of the network device according to the above embodiment, the processor 601 is configured to control and manage actions of the network device, for example, actions performed by the network device in step 401, step 402, step 403, and step 404 in fig. 4, and/or other processes described in the embodiments of the present application. The processor 601 may communicate with other network entities, e.g. with the above-mentioned terminal devices, through the transceiver 603. The memory 602 is used to store program codes and data for the network device.

The embodiment of the application defines a unidirectional communication link from an access network to terminal equipment as a downlink, wherein data transmitted on the downlink is downlink data, and the transmission direction of the downlink data is called as a downlink direction; and the unidirectional communication link from the terminal equipment to the access network is an uplink, the data transmitted on the uplink is uplink data, and the transmission direction of the uplink data is called as uplink direction.

It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In this context, the character "/" indicates that the front and rear associated objects are an "or" relationship.

The term "plurality" as used in the embodiments herein refers to two or more.

The first, second, etc. descriptions in the embodiments of the present application are only used for illustrating and distinguishing the description objects, and no order division is used, nor does it indicate that the number of the devices in the embodiments of the present application is particularly limited, and no limitation on the embodiments of the present application should be construed.

The "connection" in the embodiments of the present application refers to various connection manners such as direct connection or indirect connection, so as to implement communication between devices, which is not limited in any way in the embodiments of the present application.

The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the processes or functions described in accordance with the embodiments of the present application are all or partially produced. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center by wired or wireless means.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

In the several embodiments provided in the present application, it should be understood that the disclosed method, apparatus, and system may be implemented in other manners. For example, the device embodiments described above are merely illustrative; for example, the division of the units is only one logic function division, and other division modes can be adopted in actual implementation; for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may be physically included separately, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.

The integrated units implemented in the form of software functional units described above may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform part of the steps of the methods described in the embodiments of the present application.

Although the present application is disclosed above, the present application is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention shall be defined by the appended claims.

Claims

1. A sounding reference signal transmission method, comprising:

for each transmitting time in each frequency hopping period, determining an initial frequency domain position for transmitting the sounding reference signal;

Calculating a position offset according to the identification of the service cell and/or the user identification;

and calculating an actual frequency domain position based on the initial frequency domain position and the position offset, and transmitting the sounding reference signal at the actual frequency domain position.

2. The sounding reference signal transmission method of claim 1, wherein the calculating the position offset according to the identity of the serving cell comprises:

and performing at least one modulo operation on the frequency domain position number in the uplink bandwidth by the identification of the service cell to obtain the position offset.

3. The sounding reference signal transmission method of claim 1, wherein the calculating the position offset according to the identity of the serving cell comprises:

for each sending time in the first frequency hopping period, performing at least one modulo operation on the number of frequency domain positions in the uplink bandwidth by the identifier of the serving cell to obtain the position offset;

and for each sending time in the non-first frequency hopping period, increasing the position offset in the last frequency hopping period by a preset offset, and performing modulo operation with the frequency domain position number to obtain the position offset.

4. The sounding reference signal transmission method of claim 3, wherein calculating the position offset using the following formula comprises:

Y ₀ ＝cellid mod N _b ,Y _k ＝(Y _k-1 +1)mod N _b wherein Y is ₀ Representing the position offset of each sending time in the first frequency hopping period, cellid representing the identification of the service cell, N _b Representing the number of frequency domain positions, Y _k Represents the position offset of each transmission timing in the (k+1) th frequency hopping period, Y _k-1 Indicating the position offset of each transmission opportunity in the kth-1 frequency hopping period.

5. The sounding reference signal transmission method of claim 1, wherein the calculating the position offset according to the identity of the serving cell comprises:

for each sending time in the first frequency hopping period, determining that the position offset is zero;

and for each sending time in other frequency hopping periods, increasing the position offset in the last frequency hopping period by a preset offset, and performing modulo operation with the frequency domain position number to obtain the position offset.

6. The sounding reference signal transmission method of claim 5, wherein calculating the position offset using the following formula comprises:

Y ₀ ＝0，Y ₁ ＝cellid mod N _b ,Y _k ＝(Y _k-1 +1)mod N _b wherein Y is ₀ Representing the position offset of each sending time in the first frequency hopping period, Y ₁ Representing the position offset of each sending time in the second frequency hopping period, cellid representing the identification of the service cell, N _b Representing the number of frequency domain positions, Y _k Represents the position offset of each transmission timing in the (k+1) th frequency hopping period, Y _k-1 Indicating the position offset of each transmission opportunity in the kth-1 frequency hopping period.

7. The sounding reference signal transmission method of claim 1, wherein the calculating the position offset according to the user identity comprises:

for each sending time in the second frequency hopping period, performing at least one modulo operation on the user identifier and the frequency domain position number in the uplink bandwidth to obtain the position offset;

and for each sending time in other frequency hopping periods, calculating the product of the position offset in the last frequency hopping period and a preset coefficient, performing modulo operation on the total number of the user identifiers, and performing at least one modulo operation on the frequency domain position number to obtain the position offset.

8. The sounding reference signal transmission method of claim 7, wherein calculating the position offset using the following formula comprises:

Y ₀ ＝0，Y ₁ ＝n _RNTI mod N _b ,Y _k ＝((A×Y _k-1 )mod D)mod N _b wherein Y is ₀ Representing the position offset of each sending time in the first frequency hopping period, Y ₁ Indicating the position offset of each sending time in the second frequency hopping period, n _RNTI Representing the user identity, N _b Representing the number of frequency domain positions, Y _k Represents the position offset of each transmission timing in the (k+1) th frequency hopping period, Y _k-1 And (3) representing the position offset of each sending occasion in the k-1 frequency hopping period, wherein A represents the preset coefficient, and D represents the total number of the user identifiers.

9. The sounding reference signal transmission method of claim 1, wherein the calculating the position offset according to the identity of the serving cell and the user identity comprises:

and for each sending time in other frequency hopping periods, calculating the product of the position offset in the last frequency hopping period and a preset coefficient, performing modular operation on the product and the total number of the user identifiers, performing summation calculation on the product and the identifiers of the service cells, and performing at least one modular operation on the product and the frequency domain position number to obtain the position offset.

10. The sounding reference signal transmission method of claim 9, wherein calculating the position offset using the following formula comprises:

Y ₀ ＝0，Y ₁ ＝n _RNTI mod N _b ,Y _k ＝((A×Y _k-1 )mod D+cellid)mod N _b wherein Y is ₀ Representing the position offset of each sending time in the first frequency hopping period, Y ₁ Indicating the position offset of each sending time in the second frequency hopping period, n _RNTI Representing the user identity, N _b Representing the number of frequency domain positions, Y _k Represents the position offset of each transmission timing in the (k+1) th frequency hopping period, Y _k-1 And (3) representing the position offset of each sending time in the k-1 frequency hopping period, wherein A represents the preset coefficient, D represents the total number of the user identifiers, and cellid represents the identifier of the service cell.

11. The sounding reference signal transmission method of claim 1, wherein the calculating the position offset according to the identity of the serving cell and the user identity comprises:

12. The sounding reference signal transmission method of claim 11, wherein calculating the position offset using the following formula comprises:

Y ₀ ＝0，Y ₁ ＝cellid mod N _b ,Y _k ＝(Y _k-1 +(n _RNTI mod D))mod N _b wherein Y is ₀ Representing the position offset of each sending time in the first frequency hopping period, Y ₁ Representing the position offset of each sending time in the second frequency hopping period, cellid representing the identification of the service cell, N _b Representing the number of frequency domain positions, Y _k Represents the position offset of each transmission timing in the (k+1) th frequency hopping period, Y _k-1 Indicating the position offset of each transmission time in the (k-1) th frequency hopping period, n _RNTI Representing the user identities, D representing the total number of user identities.

13. A sounding reference signal transmission method, comprising:

for each sending time in each frequency hopping period, determining an initial frequency domain position for receiving the sounding reference signal;

and calculating an actual frequency domain position based on the initial frequency domain position and the position offset, and receiving the sounding reference signal at the actual frequency domain position.

14. A sounding reference signal transmission apparatus, comprising:

the processing module is used for determining an initial frequency domain position for transmitting the sounding reference signal for each transmitting opportunity in each frequency hopping period;

the processing module calculates the position offset according to the identification of the serving cell and/or the user identification, and calculates the actual frequency domain position based on the initial frequency domain position and the position offset;

and the communication module is used for sending the sounding reference signal at the actual frequency domain position.

15. A sounding reference signal transmission apparatus, comprising:

And the communication module is used for receiving the sounding reference signal at the actual frequency domain position.

16. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, performs the steps of the sounding reference signal transmission method according to any one of claims 1 to 13.

17. A terminal device comprising a memory and a processor, the memory having stored thereon a computer program executable on the processor, characterized in that the processor executes the steps of the sounding reference signal transmission method according to any one of claims 1 to 12 when the computer program is executed by the processor.

18. A network device comprising a memory and a processor, the memory having stored thereon a computer program executable on the processor, characterized in that the processor executes the steps of the sounding reference signal transmission method of claim 13 when the computer program is executed.