CN110537383B

CN110537383B - Channel detection signal sending method and terminal equipment

Info

Publication number: CN110537383B
Application number: CN201780089835.0A
Authority: CN
Inventors: 高飞; 焦淑蓉; 花梦
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-04-20
Filing date: 2017-04-20
Publication date: 2021-10-22
Anticipated expiration: 2037-04-20
Also published as: WO2018191922A1; CN110537383A

Abstract

The application provides a channel detection signal sending method and terminal equipment. The method comprises the following steps: the method comprises the steps that the terminal equipment obtains frequency domain position information of a first frequency domain resource and frequency domain position information of a second frequency domain resource which are configured for the terminal equipment by the access network equipment; the first frequency domain resource is a workable frequency domain resource configured for the terminal equipment by the access network equipment; the second frequency domain resource is a frequency domain resource which is indicated by the access network equipment to the terminal equipment and used for sending the channel detection signal, the frequency domain position information of the first frequency domain resource is used for indicating the frequency domain position of the first frequency domain resource, and the frequency domain position information of the second frequency domain resource is used for indicating the frequency domain position of the second frequency domain resource; the terminal equipment determines a target frequency domain resource according to the relation between the frequency domain position of the first frequency domain resource and the frequency domain position of the second frequency domain resource; and the terminal equipment sends a channel detection signal to the access network equipment on the target frequency domain resource. Therefore, the problem of how to transmit the channel detection signal based on the resource distribution mode in the 5G or NR is solved.

Description

Channel detection signal sending method and terminal equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method for sending a channel sounding signal and a terminal device.

Background

In the wireless communication process, the terminal device estimates the uplink channel quality by sending a channel Sounding Signal to the access network device, where the channel Sounding Signal may be a Sounding Reference Signal (SRS), and the access network device allocates a frequency domain resource for sending uplink data to the terminal device according to a channel estimation result.

In the fifth Generation mobile communication Technology (5th-Generation, 5G) or the New Radio Access Technology (NR), there may be two cases as follows: 1. the access network device divides a system bandwidth into a plurality of sub-bands with fixed widths, and allocates the sub-bands to corresponding terminal devices, wherein an Uplink Control Channel for sending Control information and an Uplink data Channel for sending data information in each sub-band are relatively fixed, the Uplink data Channel is located in the sub-band, the Uplink Control Channel is located on two sides of the sub-band, the Uplink Control Channel may be a Physical Uplink Control Channel (PUCCH), and the Uplink data Channel may be a Physical Uplink Shared Channel (PUSCH). 2. The access network device does not allocate a sub-band with a fixed bandwidth to the terminal device, the uplink control channel is adjacent to the frequency domain resource of the uplink data channel, and the uplink control channel is located on both sides of the uplink data channel. Based on this, how to transmit the channel sounding signal in these two cases is an urgent problem to be solved.

Disclosure of Invention

The application provides a channel detection signal sending method and terminal equipment. In order to solve the problem of how to transmit the channel sounding signal in both cases.

In a first aspect, the present application provides a method for sending a channel sounding signal, including: the method comprises the steps that the terminal equipment acquires frequency domain position information of a first frequency domain resource and frequency domain position information of a second frequency domain resource, wherein the first frequency domain resource is a workable frequency domain resource configured for the terminal equipment by the access network equipment, the second frequency domain resource is a frequency domain resource which is indicated to the terminal equipment by the access network equipment and used for sending a channel detection signal, the frequency domain position information of the first frequency domain resource is used for indicating the frequency domain position of the first frequency domain resource, and the frequency domain position information of the second frequency domain resource is used for indicating the frequency domain position of the second frequency domain resource; the terminal equipment determines a target frequency domain resource according to the relation between the frequency domain position of the first frequency domain resource and the frequency domain position of the second frequency domain resource; and the terminal equipment sends a channel detection signal to the access network equipment on the target frequency domain resource.

Therefore, the embodiment of the application solves the problem of how to send the channel sounding signal based on one resource distribution mode of 5G or NR.

Optionally, the determining, by the terminal device, the target frequency domain resource according to the relationship between the frequency domain position of the first frequency domain resource and the frequency domain position of the second frequency domain resource includes: if the frequency domain position of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, the terminal equipment determines that the second frequency domain resource is the target frequency domain resource; if the frequency domain position of part of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, or the frequency domain position of the second frequency domain resource is not within the frequency domain position of the first frequency domain resource, the terminal equipment determines the target frequency domain resource according to the time interval between the uplink data channel or the uplink control channel and the channel detection signal and the frequency point switching duration of the terminal equipment; wherein, the time interval is carried in a high layer signaling or a physical layer signaling; alternatively, the time interval is preset by the terminal device.

By the method, the target frequency domain resource for transmitting the channel detection signal can be effectively determined.

Optionally, the frequency point switching duration of the terminal device is a duration required when the terminal device switches from the center frequency point of the first frequency domain resource to the center frequency point of the third frequency domain resource; wherein the third frequency domain resources include second frequency domain resources.

Optionally, the determining, by the terminal device, the target frequency domain resource according to the time interval between the uplink data channel or the uplink control channel and the channel sounding signal, and the frequency point switching duration of the terminal device includes: if the time interval is greater than or equal to the frequency point switching duration, the terminal equipment is switched to the central frequency point of the third frequency domain resource, and the second frequency domain resource is determined to be the target frequency domain resource; and if the frequency domain positions of the partial frequency domain resources of the second frequency domain resources are within the frequency domain positions of the first frequency domain resources and the time interval is less than the frequency point switching duration, determining that the partial frequency domain resources are the target frequency domain resources.

That is, as long as the time interval is greater than or equal to the frequency point switching duration, it indicates that the terminal device may switch to the third frequency domain resource before sending the channel sounding signal, where the third frequency domain resource includes the second frequency domain resource. In this case, the terminal device may take the second frequency domain resource as a target frequency domain resource and transmit the channel sounding signal on the target frequency domain resource. And if the frequency domain position of the partial frequency domain resource of the second frequency domain resource is within the frequency domain position of the first frequency domain resource and the time interval is less than the frequency point switching duration, the terminal device may not perform the frequency point switching, but determine the partial frequency domain resource as the target frequency domain resource. And transmits a channel sounding signal on the target frequency domain resource.

Optionally, the method further comprises: if the frequency domain positions of part of the frequency domain resources of the second frequency domain resources are within the frequency domain positions of the first frequency domain resources, and the time interval is less than the frequency point switching duration, not sending the channel detection signal; and if the frequency domain position of the second frequency domain resource is not in the frequency domain position of the first frequency domain resource and the time interval is less than the frequency point switching duration, not sending the channel detection signal.

In a second aspect, the present application provides a method for transmitting a channel sounding signal, including: the terminal equipment acquires frequency domain position information of the first frequency domain resource and frequency domain position information of the second frequency domain resource; the first frequency domain resource is a frequency domain resource currently occupied by the terminal equipment; the second frequency domain resource is a frequency domain resource which is indicated by the access network equipment to the terminal equipment and used for sending the channel detection signal, the frequency domain position information of the first frequency domain resource is used for indicating the frequency domain position of the first frequency domain resource, and the frequency domain position information of the second frequency domain resource is used for indicating the frequency domain position of the second frequency domain resource; the terminal equipment determines a target frequency domain resource according to the frequency domain position information of the first frequency domain resource, the frequency domain position information of the second frequency domain resource and the maximum sending bandwidth of the terminal equipment; and the terminal equipment sends a channel detection signal to the access network equipment on the target frequency domain resource.

Optionally, the terminal device determines the target frequency domain resource according to the frequency domain position information of the first frequency domain resource, the frequency domain position information of the second frequency domain resource, and the maximum transmission bandwidth of the terminal device, and includes that the terminal device determines the frequency domain resource in which the terminal device can operate according to the frequency domain position information of the first frequency domain resource and the maximum transmission bandwidth of the terminal device; and the terminal equipment determines the target frequency domain resource according to the relation between the frequency domain position of the operable frequency domain resource and the frequency domain position of the second frequency domain resource.

Optionally, the frequency domain position information of the first frequency domain resource is further used to determine a maximum frequency domain position or a minimum frequency domain position of the first frequency domain resource; the determining, by the terminal device, the frequency domain resource where the terminal device can operate according to the frequency domain location information of the first frequency domain resource and the maximum bandwidth of the terminal device includes: the terminal equipment determines that the maximum frequency domain position of the first frequency domain resource is the maximum frequency domain position of the workable frequency domain resource, and the maximum sending bandwidth is the bandwidth of the workable frequency domain resource; or, the terminal device determines the minimum frequency domain position of the frequency domain resource which can be operated by using the minimum frequency domain position of the first frequency domain resource, and uses the maximum transmission bandwidth as the bandwidth of the frequency domain resource which can be operated.

The method can effectively determine the frequency domain resources which can be operated by the terminal equipment.

Optionally, the determining, by the terminal device, the target frequency domain resource according to the relationship between the frequency domain position of the operable frequency domain resource and the frequency domain position of the second frequency domain resource includes: if the frequency domain position of the second frequency domain resource is within the frequency domain position of the workable frequency domain resource, the terminal device determines that the second frequency domain resource is the target frequency domain resource; if the frequency domain position of part of the frequency domain resources of the second frequency domain resources is within the frequency domain position of the operable frequency domain resources, or the frequency domain position of the second frequency domain resources is not within the frequency domain position of the operable frequency domain resources, the terminal equipment determines the target frequency domain resources according to the time interval between the uplink data channel or the uplink control channel and the channel detection signal and the frequency point switching duration of the terminal equipment; wherein, the time interval is carried in a high layer signaling or a physical layer signaling; alternatively, the time interval is preset by the terminal device.

Optionally, the determining, by the terminal device, the target frequency domain resource according to the time interval between the uplink data channel or the uplink control channel and the channel sounding signal, and the frequency point switching duration of the terminal device includes: if the time interval is greater than or equal to the frequency point switching duration, the terminal equipment is switched to the central frequency point of the third frequency domain resource, and the second frequency domain resource is determined to be the target frequency domain resource; and if the frequency domain positions of the partial resources of the second frequency domain resources are within the frequency domain positions of the working frequency domain resources, and the time interval is less than the frequency point switching duration, determining that the partial frequency domain resources are the target frequency domain resources.

That is, as long as the time interval is greater than or equal to the frequency point switching duration, it indicates that the terminal device may switch to the third frequency domain resource before sending the channel sounding signal, where the third frequency domain resource includes the second frequency domain resource. In this case, the terminal device may take the second frequency domain resource as a target frequency domain resource and transmit the channel sounding signal on the target frequency domain resource. And if the frequency domain positions of the partial frequency domain resources of the second frequency domain resources are within the frequency domain positions of the workable frequency domain resources and the time interval is less than the frequency point switching duration, the terminal device may not perform the frequency point switching but determine the partial frequency domain resources as the target frequency domain resources. And transmits a channel sounding signal on the target frequency domain resource.

Optionally, the method further comprises: if the frequency domain positions of part of the frequency domain resources of the second frequency domain resources are within the frequency domain positions of the working frequency domain resources, and the time interval is less than the frequency point switching duration, not sending the channel detection signal; and if the frequency domain position of the second frequency domain resource is not within the frequency domain position of the working frequency domain resource and the time interval is less than the frequency point switching duration, not sending the channel detection signal.

A terminal device will be described below, where the terminal device may be configured to execute the first aspect and the optional manner corresponding to the first aspect, and the implementation principle and the technical effect are similar, and are not described herein again.

In a third aspect, the present application provides a terminal device, including: a processor, and a receiver and a transmitter coupled to the processor, respectively; the processor is configured to: acquiring, by a receiver, frequency domain position information of a first frequency domain resource and frequency domain position information of a second frequency domain resource, which are configured for the terminal device by an access network device, wherein the first frequency domain resource is a workable frequency domain resource configured for the terminal device by the access network device, the second frequency domain resource is a frequency domain resource used for sending a channel sounding signal and indicated to the terminal device by the access network device, the frequency domain position information of the first frequency domain resource is used for indicating a frequency domain position of the first frequency domain resource, and the frequency domain position information of the second frequency domain resource is used for indicating a frequency domain position of the second frequency domain resource; determining a target frequency domain resource according to the relation between the frequency domain position of the first frequency domain resource and the frequency domain position of the second frequency domain resource; and instructing the transmitter to send the channel sounding signal to the access network device on the target frequency domain resource.

Optionally, the processor is specifically configured to: if the frequency domain position of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, determining the second frequency domain resource as the target frequency domain resource; if the frequency domain position of part of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, or the frequency domain position of the second frequency domain resource is not within the frequency domain position of the first frequency domain resource, determining the target frequency domain resource according to the time interval of the uplink data channel or the uplink control channel and the channel detection signal and the frequency point switching duration of the terminal equipment; wherein the time interval is carried in a high layer signaling or a physical layer signaling; alternatively, the time interval is preset by the terminal device.

Optionally, the processor is specifically configured to: if the time interval is greater than or equal to the frequency point switching duration, the terminal equipment is switched to the central frequency point of the third frequency domain resource, and the second frequency domain resource is determined to be the target frequency domain resource; and if the frequency domain positions of the partial frequency domain resources of the second frequency domain resources are within the frequency domain positions of the first frequency domain resources and the time interval is less than the frequency point switching duration, determining that the partial frequency domain resources are the target frequency domain resources.

Optionally, the transmitter is further configured to: if the frequency domain positions of part of the frequency domain resources of the second frequency domain resources are within the frequency domain positions of the first frequency domain resources, and the time interval is less than the frequency point switching duration, not sending the channel detection signal; and if the frequency domain position of the second frequency domain resource is not in the frequency domain position of the first frequency domain resource and the time interval is less than the frequency point switching duration, not sending the channel detection signal.

A terminal device will be described below, which may be configured to execute the second aspect and the optional manner corresponding to the second aspect, and the implementation principle and the technical effect are similar, and are not described herein again.

In a fourth aspect, the present application provides a terminal device, comprising: a processor, and a receiver and a transmitter coupled to the processor, respectively; the processor is configured to: acquiring, by a receiver, frequency domain position information of a first frequency domain resource and frequency domain position information of a second frequency domain resource, where the first frequency domain resource is a frequency domain resource currently occupied by a terminal device, the second frequency domain resource is a frequency domain resource indicated by an access network device to the terminal device and used for sending a channel sounding signal, the frequency domain position information of the first frequency domain resource is used for indicating a frequency domain position of the first frequency domain resource, and the frequency domain position information of the second frequency domain resource is used for indicating a frequency domain position of the second frequency domain resource; determining a target frequency domain resource according to the frequency domain position information of the first frequency domain resource, the frequency domain position information of the second frequency domain resource and the maximum sending bandwidth of the terminal equipment; and instructing the transmitter to send the channel sounding signal to the access network device on the target frequency domain resource.

Optionally, the processor is specifically configured to: determining the frequency domain resources which can work by the terminal equipment according to the frequency domain position information of the first frequency domain resources and the maximum transmission bandwidth of the terminal equipment; and determining the target frequency domain resource according to the relation between the frequency domain position of the operable frequency domain resource and the frequency domain position of the second frequency domain resource.

Optionally, the frequency domain position information of the first frequency domain resource is further used to determine a maximum frequency domain position or a minimum frequency domain position of the first frequency domain resource; the processor is specifically configured to: determining the maximum frequency domain position of the first frequency domain resource as the maximum frequency domain position of the operable frequency domain resource, and taking the maximum transmission bandwidth as the bandwidth of the operable frequency domain resource; or, determining the minimum frequency domain position of the frequency domain resource which can be operated by using the minimum frequency domain position of the first frequency domain resource, and using the maximum transmission bandwidth as the bandwidth of the frequency domain resource which can be operated.

Optionally, the processor is specifically configured to: if the frequency domain position of the second frequency domain resource is within the frequency domain position of the workable frequency domain resource, determining the second frequency domain resource as the target frequency domain resource; if the frequency domain position of part of the frequency domain resources of the second frequency domain resources is within the frequency domain position of the operable frequency domain resources, or the frequency domain position of the second frequency domain resources is not within the frequency domain position of the operable frequency domain resources, determining the target frequency domain resources according to the time interval between the uplink data channel or the uplink control channel and the channel detection signal, and the frequency point switching duration of the terminal equipment; wherein, the time interval is carried in a high layer signaling or a physical layer signaling; alternatively, the time interval is preset by the terminal device.

Optionally, the processor is specifically configured to: if the time interval is greater than or equal to the frequency point switching duration, switching to a central frequency point of a third frequency domain resource, and determining that the second frequency domain resource is a target frequency domain resource; and if the frequency domain positions of the partial resources of the second frequency domain resources are within the frequency domain positions of the working frequency domain resources, and the time interval is less than the frequency point switching duration, determining that the partial frequency domain resources are the target frequency domain resources.

Optionally, the transmitter is further configured to: if the frequency domain positions of part of the frequency domain resources of the second frequency domain resources are within the frequency domain positions of the working frequency domain resources, and the time interval is less than the frequency point switching duration, not sending the channel detection signal; and if the frequency domain position of the second frequency domain resource is not within the frequency domain position of the working frequency domain resource and the time interval is less than the frequency point switching duration, not sending the channel detection signal.

In a fifth aspect, the present application provides a computer storage medium for storing computer software instructions for the terminal device, which includes a program designed to execute the first aspect.

In a sixth aspect, an embodiment of the present application provides a computer storage medium for storing computer software instructions for the terminal device, which includes a program designed to execute the second aspect.

In a seventh aspect, the present application provides a computer program product comprising instructions which, when executed by a computer, cause the computer to perform the functions performed by the terminal device in the first and optional methods.

In an eighth aspect, the present application provides a computer program product comprising instructions which, when executed by a computer, cause the computer to perform the functions performed by the terminal device in the second and alternative methods.

In a ninth aspect, the present application provides a baseband chip, configured to perform the functions performed by the processor in the third aspect and the optional modes.

In a tenth aspect, the present application provides a baseband chip for performing the functions performed by the processor in the fourth and alternative aspects.

The application provides a channel detection signal method and terminal equipment. The method comprises the following steps: the method comprises the steps that the terminal equipment obtains frequency domain position information of a first frequency domain resource and frequency domain position information of a second frequency domain resource which are configured for the terminal equipment by the access network equipment; the first frequency domain resource is a workable frequency domain resource configured for the terminal equipment by the access network equipment; the second frequency domain resource is a frequency domain resource which is indicated by the access network equipment to the terminal equipment and used for sending the channel detection signal, the frequency domain position information of the first frequency domain resource is used for indicating the frequency domain position of the first frequency domain resource, and the frequency domain position information of the second frequency domain resource is used for indicating the frequency domain position of the second frequency domain resource; the terminal equipment determines a target frequency domain resource according to the relation between the frequency domain position of the first frequency domain resource and the frequency domain position of the second frequency domain resource; and the terminal equipment sends a channel detection signal to the access network equipment on the target frequency domain resource. Therefore, the problem of how to transmit the channel detection signal based on the resource distribution mode in the 5G or NR is solved.

Drawings

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

fig. 2A is a schematic view of a resource distribution according to an embodiment of the present application;

fig. 2B is a schematic view of resource distribution according to another embodiment of the present application;

fig. 3 is a flowchart of a method for transmitting a channel sounding signal according to an embodiment of the present application;

fig. 4 is a flowchart of a method for transmitting a channel sounding signal according to another embodiment of the present application;

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

fig. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of an apparatus for transmitting a channel sounding signal according to another embodiment of the present application;

fig. 8 is a schematic structural diagram of a terminal device according to another embodiment of the present application.

Detailed Description

Hereinafter, some terms in the present application are explained to facilitate understanding by those skilled in the art.

1) A terminal (terminal) device, which may also be referred to as a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), etc., is a device that provides voice and/or data connectivity to a User, such as a handheld device with a wireless connection function, a vehicle-mounted device, etc. Currently, some examples of terminal devices are: a Mobile phone (Mobile phone), a tablet computer (Pad), a notebook computer, a palmtop computer, a Mobile Internet Device (MID), a wearable Device such as a smart watch, a smart bracelet, a pedometer, etc., a computer with a wireless transceiving function, a Virtual Reality (VR) terminal Device, an Augmented Reality (AR) terminal Device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety, a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart meter), etc.

2) And a Radio Access Network (RAN) is a part of a Network that accesses a terminal device to a wireless Network. A RAN node or device is a node or device in a radio access network, which may also be referred to as a base station or an access network device. Currently, some examples of access network devices are: a gbb, a Transmission Reception Point (TRP), an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a Home Base Station (e.g., Home evolved Node B, or Home Node B, HNB), a BaseBand Unit (BBU), or a Wifi Access Point (AP), etc. In addition, in a network structure, the RAN may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, and the access network device may be a CU node or a DU node. In the structure, protocol layers of an eNB in Long Term Evolution (LTE) are separated, functions of part of the protocol layers are centrally controlled by a CU, functions of the rest or all protocol layers are distributed in each DU, and each DU is centrally controlled by the CU. The embodiments of the present application do not limit the specific technologies and the specific device forms adopted by the radio access network device.

3) The term "plurality" means two or more, and the other terms are similar. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

To solve the problem of how to transmit channel sounding signals in both cases. The application provides a channel detection signal sending method and terminal equipment. The application is applied to the following communication systems: fig. 1 is a schematic diagram of a communication system according to an embodiment of the present invention, as shown in fig. 1, a terminal device 120 accesses to a wireless network through an access network device 110 to obtain a service of an external network (e.g., the internet) through the wireless network, or communicates with other terminal devices 120 through the wireless network. Access network device 110 may send a downlink reference signal to terminal device 120, and terminal device 120 performs downlink Channel measurement based on the downlink reference signal and reports Channel State Information (CSI) to access network device 110. In addition, terminal device 120 may send a channel sounding signal to access network device 110, so that the access network device performs uplink channel measurement.

Specifically, there will be two following resource distribution approaches in future 5G or NR networks: fig. 2A is a schematic resource distribution diagram provided in an embodiment of the present application, and as shown in fig. 2A, an access network device allocates a frequency domain resource a or a subband a with a fixed bandwidth to a terminal device, and an uplink data channel occupies a part of a bandwidth of the frequency domain resource a. When the terminal device needs to send the control information on the uplink control channel, the uplink control channel also occupies a part of the bandwidth of the frequency domain resource a. Wherein the uplink control channels are located on both sides of the frequency domain resource a. Of course, the terminal device may also transmit only the uplink control information on the uplink control channel, and not transmit the uplink data information on the uplink data channel, in which case the frequency domain position of the uplink data channel shown in fig. 2A is in a reserved state. The terminal device may also send the uplink data information only on the uplink data channel, and not send the uplink control information on the uplink control channel, in this case, the frequency domain position of the uplink control channel shown in fig. 2A is in a reserved state. Fig. 2B is a schematic view of resource distribution according to another embodiment of the present application, and as shown in fig. 2B, an access network device does not allocate a frequency domain resource a or a subband a with a fixed bandwidth to a terminal device, but allocates a frequency domain resource to an uplink data channel. When the terminal equipment needs to send the control information on the uplink control channel, the access network equipment also allocates frequency domain resources for the uplink control channel. Wherein the uplink control channels are located on both sides of the uplink data channel. Of course, the terminal device may also transmit only the uplink control information on the uplink control channel, and not transmit the uplink data information on the uplink data channel, in which case the frequency domain position of the uplink data channel shown in fig. 2A is in a reserved state. The terminal device may also send the uplink data information only on the uplink data channel, and not send the uplink control information on the uplink control channel, in this case, the frequency domain position of the uplink control channel shown in fig. 2A is in a reserved state.

Based on the resource distribution shown in fig. 2A, the present application provides a method for transmitting a channel sounding signal. The channel sounding signal in the present application is used to measure the quality of the uplink channel. The channel sounding signal may be an SRS or NR-SRS, etc. The name of the channel sounding signal is not limited in this application. Specifically, fig. 3 is a flowchart of a method for transmitting a channel sounding signal according to an embodiment of the present application. As shown in fig. 3, the method includes the following steps:

step S301: the terminal equipment acquires frequency domain position information of a first frequency domain resource and frequency domain position information of a second frequency domain resource which are configured for the terminal equipment by the access network equipment.

The first frequency domain resource is a workable frequency domain resource configured for the terminal device by the access network device. The uplink data channel and/or the uplink control channel are/is located in the first frequency domain resource, wherein the uplink control channel is located on two sides of the first frequency domain resource. As shown in fig. 2A, the frequency domain resource a is the first frequency domain resource. The uplink data channel and the uplink control channel are located in the first frequency domain resource, and the uplink control channel is located on two sides of the frequency domain resource a. The frequency domain location information of the first frequency domain resource is used to indicate the frequency domain location of the first frequency domain resource. The frequency domain location information of the first frequency domain resource includes: a minimum frequency domain location and a maximum frequency domain location of the first frequency domain resource. The frequency domain location information of the first frequency domain resource may further include: a bandwidth of the first frequency domain resource.

The uplink data channel is used for transmitting uplink data information. For example: the uplink data channel may be a PUSCH or an NR-PUSCH, and the name of the uplink data channel is not limited in the present application. The uplink data channel is used for transmitting uplink control information. For example: the uplink control channel may be a PUCCH or an NR-PUCCH, and the name of the uplink control channel is not limited in the present application.

Optionally, the frequency domain location information of the first frequency domain resource may be carried in physical layer signaling or higher layer signaling. For example: the frequency domain location information of the first frequency domain Resource may be carried in Radio Resource Control (RRC) signaling, Media Access Control (MAC) signaling, or Control Indication (DCI) signaling.

The second frequency domain resource is a frequency domain resource used for sending the channel sounding signal and indicated by the access network device to the terminal device. I.e., the second frequency-domain resources are frequency-domain resources nominally used for transmitting channel sounding signals. However, the final terminal device does not necessarily transmit a channel sounding signal on the second frequency domain resource. As shown in fig. 2A, the frequency domain resource c is the second frequency domain resource. The frequency domain location information of the second frequency domain resource is used to indicate the frequency domain location of the second frequency domain resource. The frequency domain location information of the second frequency domain resource includes: a minimum frequency domain location and a maximum frequency domain location of the second frequency domain resource. The frequency domain location information of the second frequency domain resource may further include: bandwidth of the second frequency domain resource.

Optionally, the frequency domain location information of the second frequency domain resource may be carried in physical layer signaling or higher layer signaling. For example: the frequency domain location information of the second frequency domain resource may be carried in RRC signaling or MAC signaling or DCI signaling.

It should be noted that, the present application does not limit the time sequence of the terminal device acquiring the frequency domain position information of the first frequency domain resource and the time sequence of acquiring the frequency domain position information of the first frequency domain resource.

Step S302: and the terminal equipment determines the target frequency domain resource according to the relation between the frequency domain position of the first frequency domain resource and the frequency domain position of the second frequency domain resource.

Step S303: and the terminal equipment sends a channel detection signal to the access network equipment on the target frequency domain resource.

The following description is made with reference to step S302 and step S303: the target frequency domain resource is used for transmitting a channel sounding signal. The step S302 specifically includes the following cases:

firstly, if the frequency domain position of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, the terminal device determines the second frequency domain resource as the target frequency domain resource.

Specifically, when the second frequency domain resource is the uppermost frequency domain resource c in fig. 2A, that is, the frequency domain position of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, this indicates that the access network device indicates that the frequency domain resource for sending the channel sounding signal is within the first frequency domain resource, so the terminal device may use the second frequency domain resource as the target frequency domain resource. And transmits a channel sounding signal on the target frequency domain resource.

Secondly, if the frequency domain position of the partial resource of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, or the frequency domain position of the second frequency domain resource is not within the frequency domain position of the first frequency domain resource, the terminal device determines the mapping resource of the second frequency domain resource in the first frequency domain resource, and takes the mapping resource as the target frequency domain resource. When the frequency domain position of the partial resource of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, and the minimum frequency domain position of the second frequency domain resource is smaller than the minimum frequency domain position of the first frequency domain resource, the mapping manner of the second frequency domain resource in the first frequency domain resource may be: shifting the frequency domain location of the second frequency domain resource by M1 bandwidth towards the maximum frequency domain location of the first frequency domain resource, wherein M1 is the bandwidth of the portion of the frequency domain resources where the second frequency domain resource is not located on the first frequency domain resource. For example: as shown in fig. 2A, the mapping resource corresponding to the middle frequency domain resource c may be the uppermost frequency domain resource c. When the frequency domain position of the partial resource of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, and the maximum frequency domain position of the second frequency domain resource is greater than the maximum frequency domain position of the first frequency domain resource, the mapping manner of the second frequency domain resource in the first frequency domain resource may be: shifting the frequency domain location of the second frequency domain resource by M2 bandwidth towards the minimum frequency domain location of the first frequency domain resource, wherein M2 is the bandwidth of the portion of the frequency domain resources where the second frequency domain resource is not located on the first frequency domain resource. When the frequency domain position of the second frequency domain resource is not within the frequency domain position of the first frequency domain resource, and the minimum frequency domain position of the second frequency domain resource is smaller than the minimum frequency domain position of the first frequency domain resource, the mapping manner of the second frequency domain resource in the first frequency domain resource may be: determining a frequency domain interval M3 between the minimum frequency domain position of the second frequency domain resource and the minimum frequency domain position of the first frequency domain resource, and shifting the frequency domain position of the second frequency domain resource by M3 bandwidth towards the maximum frequency domain position of the first frequency domain resource. When the frequency domain position of the second frequency domain resource is not within the frequency domain position of the first frequency domain resource, and the maximum frequency domain position of the second frequency domain resource is greater than the maximum frequency domain position of the first frequency domain resource, the mapping manner of the second frequency domain resource in the first frequency domain resource may be: determining a frequency domain interval M4 between the maximum frequency domain position of the second frequency domain resource and the maximum frequency domain position of the first frequency domain resource, and shifting the frequency domain position of the second frequency domain resource by M4 bandwidth towards the minimum frequency domain position of the first frequency domain resource.

And thirdly, if the frequency domain position of part of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, or the frequency domain position of the second frequency domain resource is not within the frequency domain position of the first frequency domain resource, the terminal equipment determines the target frequency domain resource according to the time interval of the uplink data channel or the uplink control channel and the channel detection signal and the frequency point switching duration of the terminal equipment.

As shown in fig. 2A, the middle frequency-domain resource c is a case of the second frequency-domain resource, that is, the frequency-domain positions of the partial resources of the second frequency-domain resource are within the frequency-domain positions of the first frequency-domain resource. The lowest frequency domain resource c is yet another case of the second frequency domain resource, i.e. the frequency domain position of the second frequency domain resource is not within the frequency domain position of the first frequency domain resource.

When the terminal equipment only transmits uplink data information on the uplink data channel and does not transmit uplink control information on the uplink control channel, the time interval is the time interval between the uplink data channel and the channel sounding signal. When the terminal device transmits only uplink control information on the uplink control channel and does not transmit uplink data information on the uplink data channel, the time interval is the time interval between the uplink control channel and the channel sounding signal. When the terminal device transmits both the uplink data information on the uplink data channel and the uplink control information on the uplink control channel, and when a transmission start time of transmitting the uplink data information on the uplink data channel is the same as a transmission start time of transmitting the uplink control information on the uplink control channel and a transmission end time of transmitting the uplink data information on the uplink data channel is earlier than the transmission end time of transmitting the uplink control information on the uplink control channel, the time interval is a time interval of the uplink control channel and the channel sounding signal. In contrast, when the terminal apparatus transmits both the uplink data information on the uplink data channel and the uplink control information on the uplink control channel, and when the transmission start time of the uplink data information on the uplink data channel is the same as the transmission start time of the uplink control information on the uplink control channel and the transmission end time of the uplink data information on the uplink data channel is later than the transmission end time of the uplink control information on the uplink control channel, the time interval is the time interval between the uplink data channel and the channel sounding signal. When the terminal equipment transmits uplink data information on an uplink data channel and also transmits uplink control information on an uplink control channel, and when the starting transmission time of transmitting the uplink data information on the uplink data channel is the same as the starting transmission time of transmitting the uplink control information on the uplink control channel, and the ending transmission time of transmitting the uplink data information on the uplink data channel is the same as the ending transmission time of transmitting the uplink control information on the uplink control channel, the time interval is the time interval of the uplink data channel and the channel sounding signal; or the time interval of the uplink control channel and the channel sounding signal. As shown in fig. 2A, since the uplink data channel and the uplink control channel are overlapped in the time domain, the time interval between the uplink data channel and the channel sounding signal is the same as the time interval between the uplink control channel and the channel sounding signal.

Alternatively, the time interval between the uplink control channel and the channel sounding signal may be a time interval between a transmission end time of transmitting the uplink control information on the uplink control channel and a transmission start time of the channel sounding signal. Alternatively, it may be a time interval between a transmission start time of the uplink control information on the uplink control channel and a transmission start time of the channel sounding signal. Alternatively, the time interval between the uplink control channel and the channel sounding signal is calculated according to at least one of the following time intervals. Such as: a time interval between a transmission end time of the uplink control information transmitted on the uplink control channel and a transmission start time of the channel sounding signal. And/or a time interval between a transmission start time of the uplink control information and a transmission start time of the channel sounding signal on the uplink control channel. Similarly, the time interval of the uplink data channel and the channel sounding signal is defined in a manner similar to that of the uplink control channel and the channel sounding signal, and is not described herein again.

The time interval is not limited by the present application. The time interval is carried in a higher layer signaling or a physical layer signaling; for example: the time interval may be carried in RRC signaling or MAC signaling or DCI signaling. Alternatively, the time interval is preset by the terminal device, for example: the time interval is determined by the terminal device from the communication protocol.

Optionally, the frequency point switching duration of the terminal device is a duration required when the terminal device switches from the center frequency point of the first frequency domain resource to the center frequency point of the third frequency domain resource; wherein the third frequency domain resources include second frequency domain resources. The bandwidth of the third frequency domain resource may be less than or equal to the same bandwidth of the first frequency domain resource.

In an optional mode, the determining, by the terminal device, the target frequency domain resource according to the time interval between the uplink data channel or the uplink control channel and the channel sounding signal and the frequency point switching duration of the terminal device includes: if the time interval is greater than or equal to the frequency point switching duration, the terminal equipment is switched to the central frequency point of the third frequency domain resource, and the second frequency domain resource is determined to be the target frequency domain resource; and if the frequency domain positions of the partial frequency domain resources of the second frequency domain resources are within the frequency domain positions of the first frequency domain resources and the time interval is less than the frequency point switching duration, determining that the partial frequency domain resources are the target frequency domain resources.

Specifically, when the frequency domain position of the partial resource of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, or the frequency domain position of the second frequency domain resource is not within the frequency domain position of the first frequency domain resource, as long as the time interval is greater than or equal to the frequency point switching duration, the terminal device switches to the central frequency point of the third frequency domain resource, and determines that the second frequency domain resource is the target frequency domain resource. That is, as long as the time interval is greater than or equal to the frequency point switching duration, it indicates that the terminal device may switch to the third frequency domain resource before sending the channel sounding signal, where the third frequency domain resource includes the second frequency domain resource. In this case, the terminal device may take the second frequency domain resource as a target frequency domain resource and transmit the channel sounding signal on the target frequency domain resource.

And if the frequency domain positions of the partial frequency domain resources of the second frequency domain resources are within the frequency domain positions of the first frequency domain resources and the time interval is less than the frequency point switching duration, determining that the partial frequency domain resources are the target frequency domain resources. For example: as shown in fig. 2A, the frequency domain position of the partial frequency domain resource c' of the second frequency domain resource is within the frequency domain position of the first frequency domain resource a, but the time interval is less than the frequency point switching duration, which indicates that the terminal device cannot completely switch to the third frequency domain resource before sending the channel detection signal. In this case, the terminal device may determine the partial frequency domain resources as the target frequency domain resources without performing frequency point switching. And transmits a channel sounding signal on the target frequency domain resource. Or, if the frequency domain position of the partial frequency domain resource of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, and the time interval is less than the frequency point switching duration, not sending the channel detection signal.

In another alternative, the determining, by the terminal device, the target frequency domain resource according to the time interval between the uplink data channel or the uplink control channel and the channel sounding signal and the frequency point switching duration of the terminal device includes: if the time interval is greater than or equal to the frequency point switching duration, the terminal equipment is switched to the central frequency point of the third frequency domain resource, and the second frequency domain resource is determined to be the target frequency domain resource; if the frequency domain position of the partial frequency domain resource of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, and the time interval is less than the frequency point switching duration, the terminal device determines the mapping resource of the second frequency domain resource in the first frequency domain resource, and takes the mapping resource as the target frequency domain resource. The mapping manner of the second frequency domain resource in the first frequency domain resource is the same as the mapping manner of the second frequency domain resource in the first frequency domain resource, and is not described herein again.

When the terminal device transmits the channel sounding signal on the target Frequency domain resource, the terminal device may transmit the channel sounding signal in a Frequency Division Multiplexing (FDM) or Code Division Multiplexing (CDM) manner. The present application does not limit the manner in which the channel sounding signal is transmitted.

Further, if the frequency domain position of the second frequency domain resource is not within the frequency domain position of the first frequency domain resource, and the time interval is less than the frequency point switching duration, the channel sounding signal is not sent.

It should be noted that the transmission method of the channel sounding signal provided in the embodiment of the present application may be applied to a periodic channel sounding signal or an aperiodic channel sounding signal. For example: when the method is applied to only aperiodic channel sounding signals, the aperiodic channel sounding signals can be transmitted within the first frequency domain resources or outside the first frequency domain resources. Whereas for periodic channel sounding signals can only be transmitted within the first frequency domain resources.

The embodiment of the present application provides a method for sending a channel sounding signal, including: the terminal equipment acquires frequency domain position information of a first frequency domain resource and frequency domain position information of a second frequency domain resource which are configured for the terminal equipment by access network equipment. And the terminal equipment determines the target frequency domain resource according to the relation between the frequency domain position of the first frequency domain resource and the frequency domain position of the second frequency domain resource. And the terminal equipment transmits the channel detection signal on the target frequency domain resource. Namely, the embodiment of the present application provides a method for transmitting a channel sounding signal based on one of 5G and NR resource distribution modes. Therefore, the problem of how to send the channel detection signal in the resource distribution mode is solved.

Based on the resource distribution shown in fig. 2B, the present application provides a method for transmitting a channel sounding signal. The channel sounding signal in the present application is used to measure the quality of the uplink channel. The channel sounding signal may be an SRS or NR-SRS, etc. The name of the channel sounding signal is not limited in this application. Specifically, fig. 4 is a flowchart of a method for transmitting a channel sounding signal according to another embodiment of the present application. As shown in fig. 4, the method includes the following steps:

step S401: the terminal equipment acquires the frequency domain position information of the first frequency domain resource and the frequency domain position information of the second frequency domain resource.

The first frequency domain resource is a frequency domain resource currently occupied by the terminal device. The frequency domain resources currently occupied by the terminal device refer to: and the terminal equipment is currently used for sending the frequency domain resources of the uplink data channel of the uplink data information and/or the uplink control channel of the uplink control information. Specifically, when the terminal device only transmits uplink data information on the uplink data channel and does not transmit uplink control information on the uplink control channel, the first frequency domain resource is a frequency domain resource of the uplink data channel. When the terminal equipment only transmits uplink control information on the uplink control channel and does not transmit uplink data information on the uplink data channel, the first frequency domain resource is the frequency domain resource of the uplink control channel. When the terminal equipment not only sends uplink data information on an uplink data channel, but also sends uplink control information on an uplink control channel, the first frequency domain resource is the frequency domain resource of the uplink data channel and the uplink control channel. As shown in fig. 2B, the first frequency domain resource is the frequency domain resource of the uplink data channel and the uplink control channel. The frequency domain location information of the first frequency domain resource is used to indicate the frequency domain location of the first frequency domain resource. The frequency domain location information of the first frequency domain resource includes: a minimum frequency domain location and a maximum frequency domain location of the first frequency domain resource. The frequency domain location information of the first frequency domain resource may further include: a bandwidth of the first frequency domain resource.

Optionally, the frequency domain location information of the first frequency domain resource may be carried in physical layer signaling or higher layer signaling. For example: the frequency domain location information of the first frequency domain resource may be carried in RRC signaling or MAC signaling or DCI signaling.

The second frequency domain resource is a frequency domain resource used for sending the channel sounding signal and indicated by the access network device to the terminal device. I.e., the second frequency-domain resources are frequency-domain resources nominally used for transmitting channel sounding signals. However, the final terminal device does not necessarily transmit a channel sounding signal on the second frequency domain resource. As shown in fig. 2B, the frequency domain resource c is the second frequency domain resource. The frequency domain location information of the second frequency domain resource is used to indicate the frequency domain location of the second frequency domain resource. The frequency domain location information of the second frequency domain resource includes: a minimum frequency domain location and a maximum frequency domain location of the second frequency domain resource. The frequency domain location information of the second frequency domain resource may further include: bandwidth of the second frequency domain resource.

Step S402: and the terminal equipment determines the target frequency domain resource according to the frequency domain position information of the first frequency domain resource, the frequency domain position information of the second frequency domain resource and the maximum sending bandwidth of the terminal equipment.

Step S403: and the terminal equipment sends a channel detection signal to the access network equipment on the target frequency domain resource.

The following description is made with reference to step S402 and step S403: the target frequency domain resource is used for transmitting a channel sounding signal. Wherein step S402 specifically includes: and the terminal equipment determines the frequency domain resources which can be operated by the terminal equipment according to the frequency domain position information of the first frequency domain resources and the maximum transmission bandwidth of the terminal equipment, and determines the target frequency domain resources according to the relation between the frequency domain positions of the frequency domain resources which can be operated and the frequency domain positions of the second frequency domain resources.

The frequency domain position information of the first frequency domain resource is also used for determining the maximum frequency domain position or the minimum frequency domain position of the first frequency domain resource; the determining, by the terminal device, the frequency domain resource where the terminal device can operate according to the frequency domain location information of the first frequency domain resource and the maximum bandwidth of the terminal device includes: the terminal equipment determines that the maximum frequency domain position of the first frequency domain resource is the maximum frequency domain position of the workable frequency domain resource, and the maximum sending bandwidth is the bandwidth of the workable frequency domain resource; or, the terminal device determines the minimum frequency domain position of the frequency domain resource which can be operated by using the minimum frequency domain position of the first frequency domain resource, and uses the maximum transmission bandwidth as the bandwidth of the frequency domain resource which can be operated. As shown in fig. 2B, the first frequency domain resource is a frequency domain resource of the frequency domain resources of the uplink data channel and the uplink control channel. The operable frequency domain resource is frequency domain resource b. The upper frequency domain resource b is the maximum frequency domain position of the first frequency domain resource as the maximum frequency domain position of the operable frequency domain resource, and the maximum transmission bandwidth is the bandwidth of the operable frequency domain resource. The lower frequency domain resource b is the minimum frequency domain position of the first frequency domain resource as the minimum frequency domain position of the operable frequency domain resource, and the maximum transmission bandwidth is the bandwidth of the operable frequency domain resource.

Optionally, the frequency domain location information of the operable frequency domain resource is used to indicate the frequency domain location of the operable frequency domain resource; the frequency domain location information of the second frequency domain resource is used to indicate the frequency domain location of the second frequency domain resource. The terminal device determines the target frequency domain resource according to the relationship between the frequency domain position of the operable frequency domain resource and the frequency domain position of the second frequency domain resource, which includes the following specific cases:

firstly, if the frequency domain position of the second frequency domain resource is within the frequency domain position of the operable frequency domain resource, the terminal device determines the second frequency domain resource as the target frequency domain resource.

Specifically, when the second frequency domain resource is the uppermost frequency domain resource c in fig. 2B, that is, the frequency domain position of the second frequency domain resource is within the frequency domain position of the operable frequency domain resource B, the operable frequency domain resource B is the maximum frequency domain position of the first frequency domain resource as the operable frequency domain resource, and the maximum transmission bandwidth is the bandwidth of the operable frequency domain resource. This case indicates that the access network device indicates that the frequency domain resource for transmitting the channel sounding signal is within the operable frequency domain resource b, so that the terminal device may use the second frequency domain resource as the target frequency domain resource. And transmits a channel sounding signal on the target frequency domain resource.

Secondly, if the frequency domain position of the partial frequency domain resource of the second frequency domain resource is within the frequency domain position of the operable frequency domain resource, or the frequency domain position of the second frequency domain resource is not within the frequency domain position of the operable frequency domain resource, the terminal device determines the mapping resource of the second frequency domain resource in the operable frequency domain resource, and takes the mapping resource as the target frequency domain resource. When the frequency domain position of the partial resource of the second frequency domain resource is within the frequency domain position of the operable frequency domain resource, and the minimum frequency domain position of the second frequency domain resource is smaller than the minimum frequency domain position of the operable frequency domain resource, the mapping manner of the second frequency domain resource in the operable frequency domain resource may be: shifting the frequency domain location of the second frequency domain resource by M1 bandwidth towards a maximum frequency domain location of the operable frequency domain resource, wherein M1 is the bandwidth of the portion of the frequency domain resource for which the second frequency domain resource is not operable. For example: as shown in fig. 2B, the mapping resource corresponding to the middle frequency domain resource c may be the uppermost frequency domain resource c. When the frequency domain position of the partial resource of the second frequency domain resource is within the frequency domain position of the operable frequency domain resource, and the maximum frequency domain position of the second frequency domain resource is greater than the maximum frequency domain position of the operable frequency domain resource, the mapping manner of the second frequency domain resource in the operable frequency domain resource may be: shifting the frequency domain location of the second frequency domain resource by M2 bandwidth towards the minimum frequency domain location of the operable frequency domain resource, wherein M2 is the bandwidth of the portion of the frequency domain resource for which the second frequency domain resource is not operable. When the frequency domain position of the second frequency domain resource is not within the frequency domain position of the operable frequency domain resource, and the minimum frequency domain position of the second frequency domain resource is smaller than the minimum frequency domain position of the operable frequency domain resource, the mapping manner of the second frequency domain resource in the operable frequency domain resource may be: and determining the frequency domain interval M3 between the minimum frequency domain position of the second frequency domain resource and the minimum frequency domain position of the operable frequency domain resource, and shifting the frequency domain position of the second frequency domain resource to the maximum frequency domain position direction of the operable frequency domain resource by M3 bandwidth. When the frequency domain position of the second frequency domain resource is not within the frequency domain position of the operable frequency domain resource, and the maximum frequency domain position of the second frequency domain resource is greater than the maximum frequency domain position of the operable frequency domain resource, the mapping manner of the second frequency domain resource in the operable frequency domain resource may be: and determining the frequency domain interval M4 between the maximum frequency domain position of the second frequency domain resource and the maximum frequency domain position of the operable frequency domain resource, and shifting the frequency domain position of the second frequency domain resource to the direction of the minimum frequency domain position of the operable frequency domain resource by M4 bandwidth.

Thirdly, if the frequency domain position of part of the frequency domain resources of the second frequency domain resources is within the frequency domain position of the workable frequency domain resources, or the frequency domain position of the second frequency domain resources is not within the frequency domain position of the workable frequency domain resources, the terminal equipment determines the target frequency domain resources according to the time interval of the uplink data channel or the uplink control channel and the channel detection signal, and the frequency point switching duration of the terminal equipment;

as shown in fig. 2B, the middle frequency-domain resource c is a case of the second frequency-domain resource, that is, the frequency-domain positions of the partial resources of the second frequency-domain resource are within the frequency-domain positions of the operable frequency-domain resource B. The lowest frequency domain resource c is yet another case of the second frequency domain resource, i.e. the frequency domain position of the second frequency domain resource is not within the frequency domain position of the operational frequency domain resource b.

When the terminal equipment only transmits uplink data information on the uplink data channel and does not transmit uplink control information on the uplink control channel, the time interval is the time interval between the uplink data channel and the channel sounding signal. When the terminal device transmits only uplink control information on the uplink control channel and does not transmit uplink data information on the uplink data channel, the time interval is the time interval between the uplink control channel and the channel sounding signal. When the terminal device transmits both the uplink data information on the uplink data channel and the uplink control information on the uplink control channel, and when a transmission start time of transmitting the uplink data information on the uplink data channel is the same as a transmission start time of transmitting the uplink control information on the uplink control channel and a transmission end time of transmitting the uplink data information on the uplink data channel is earlier than the transmission end time of transmitting the uplink control information on the uplink control channel, the time interval is a time interval of the uplink control channel and the channel sounding signal. In contrast, when the terminal apparatus transmits both the uplink data information on the uplink data channel and the uplink control information on the uplink control channel, and when the transmission start time of the uplink data information on the uplink data channel is the same as the transmission start time of the uplink control information on the uplink control channel and the transmission end time of the uplink data information on the uplink data channel is later than the transmission end time of the uplink control information on the uplink control channel, the time interval is the time interval between the uplink data channel and the channel sounding signal. When the terminal equipment transmits uplink data information on an uplink data channel and also transmits uplink control information on an uplink control channel, and when the starting transmission time of transmitting the uplink data information on the uplink data channel is the same as the starting transmission time of transmitting the uplink control information on the uplink control channel, and the ending transmission time of transmitting the uplink data information on the uplink data channel is the same as the ending transmission time of transmitting the uplink control information on the uplink control channel, the time interval is the time interval of the uplink data channel and the channel sounding signal; or the time interval of the uplink control channel and the channel sounding signal. As shown in fig. 2B, since the uplink data channel and the uplink control channel are overlapped in the time domain, the time interval between the uplink data channel and the channel sounding signal is the same as the time interval between the uplink control channel and the channel sounding signal.

The time interval is carried in a higher layer signaling or a physical layer signaling; for example: the time interval may be carried in RRC signaling or MAC signaling or DCI signaling. Alternatively, the time interval is preset by the terminal device, for example: the time interval is determined by the terminal device from the communication protocol.

An optional mode is that a terminal device determines a target frequency domain resource according to a time interval between an uplink data channel or an uplink control channel and the channel sounding signal and a frequency point switching duration of the terminal device, and includes: if the time interval is greater than or equal to the frequency point switching duration, the terminal equipment is switched to the central frequency point of the third frequency domain resource, and the second frequency domain resource is determined to be the target frequency domain resource; and if the frequency domain positions of the partial resources of the second frequency domain resources are within the frequency domain positions of the working frequency domain resources, and the time interval is less than the frequency point switching duration, determining that the partial frequency domain resources are the target frequency domain resources.

Specifically, when the frequency domain positions of the partial resources of the second frequency domain resources are within the frequency domain positions of the operable frequency domain resources, or the frequency domain positions of the second frequency domain resources are not within the frequency domain positions of the operable frequency domain resources, as long as the time interval is greater than or equal to the frequency point switching duration, the terminal device switches to the central frequency point of the third frequency domain resources, and determines that the second frequency domain resources are the target frequency domain resources. That is, as long as the time interval is greater than or equal to the frequency point switching duration, which indicates before the channel sounding signal is sent, the terminal device may switch to the third frequency domain resource, where the third frequency domain resource includes the second frequency domain resource. In this case, the terminal device may take the second frequency domain resource as a target frequency domain resource and transmit the channel sounding signal on the target frequency domain resource.

And if the frequency domain positions of the partial frequency domain resources of the second frequency domain resources are within the frequency domain positions of the working frequency domain resources, and the time interval is less than the frequency point switching duration, determining the partial frequency domain resources as the target frequency domain resources. For example: as shown in fig. 2B, the frequency domain position of the partial frequency domain resource c' of the second frequency domain resource is within the frequency domain position of the operable frequency domain resource B, but the time interval is less than the frequency point switching duration, which indicates that the terminal device cannot completely switch to the third frequency domain resource before sending the channel detection signal. In this case, the terminal device may determine the partial frequency domain resources as the target frequency domain resources without performing frequency point switching. And transmits a channel sounding signal on the target frequency domain resource. Or, if the frequency domain position of the partial frequency domain resource of the second frequency domain resource is within the frequency domain position of the working frequency domain resource, and the time interval is less than the frequency point switching duration, not sending the channel detection signal.

In another alternative, the determining, by the terminal device, the target frequency domain resource according to the time interval between the uplink data channel or the uplink control channel and the channel sounding signal and the frequency point switching duration of the terminal device includes: if the time interval is greater than or equal to the frequency point switching duration, the terminal equipment is switched to the central frequency point of the third frequency domain resource, and the second frequency domain resource is determined to be the target frequency domain resource; if the frequency domain position of the partial frequency domain resource of the second frequency domain resource is within the frequency domain position of the operable frequency domain resource, and the time interval is less than the frequency point switching duration, the terminal device determines the mapping resource of the second frequency domain resource in the operable frequency domain resource, and takes the mapping resource as the target frequency domain resource. The mapping manner of the second frequency domain resource in the operable frequency domain resource is the same as the mapping manner of the second frequency domain resource in the operable frequency domain resource, and is not described herein again.

And when the terminal device transmits the channel sounding signal on the target frequency domain resource, the terminal device may transmit the channel sounding signal in an FDM or CDM manner. The present application does not limit the manner in which the channel sounding signal is transmitted.

Further, if the frequency domain position of the second frequency domain resource is not within the frequency domain position of the workable frequency domain resource, and the time interval is less than the frequency point switching duration, the channel sounding signal is not sent.

It should be noted that the transmission method of the channel sounding signal provided in the embodiment of the present application may be applied to a periodic channel sounding signal or an aperiodic channel sounding signal. For example: when the method is applied to only aperiodic channel sounding signals, the aperiodic channel sounding signals can be transmitted within the operable frequency domain resources or outside the operable frequency domain resources. Whereas for periodic channel sounding signals can only be transmitted within the operational frequency domain resources.

The embodiment of the present application provides a method for sending a channel sounding signal, including: the terminal equipment acquires the frequency domain position information of the first frequency domain resource and the frequency domain position information of the second frequency domain resource. And the terminal equipment determines the target frequency domain resource according to the frequency domain position information of the first frequency domain resource, the frequency domain position information of the second frequency domain resource and the maximum sending bandwidth of the terminal equipment. And the terminal equipment transmits the channel detection signal on the target frequency domain resource. Namely, the embodiment of the present application provides a method for transmitting a channel sounding signal based on one of 5G and NR resource distribution modes. Therefore, the problem of how to send the channel detection signal in the resource distribution mode is solved.

Fig. 5 is a schematic structural diagram of an apparatus for transmitting a channel sounding signal according to an embodiment of the present application, and as shown in fig. 5, the apparatus includes:

an obtaining unit 510, configured to obtain frequency domain location information of a first frequency domain resource and frequency domain location information of a second frequency domain resource, where the first frequency domain resource and the second frequency domain resource are configured by an access network device for the apparatus; the first frequency domain resource is a workable frequency domain resource configured for the device by the access network equipment; the second frequency domain resource is a frequency domain resource which is indicated by the access network device to the apparatus and used for sending the channel sounding signal, the frequency domain position information of the first frequency domain resource is used for indicating the frequency domain position of the first frequency domain resource, and the frequency domain position information of the second frequency domain resource is used for indicating the frequency domain position of the second frequency domain resource.

A determining unit 520, configured to determine a target frequency domain resource according to a frequency domain position of the first frequency domain resource and a frequency domain position relationship of the second frequency domain resource.

A sending unit 530, configured to send the channel sounding signal to the access network device on the target frequency domain resource.

Optionally, the determining unit 520 is specifically configured to: and if the frequency domain position of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, determining that the second frequency domain resource is the target frequency domain resource. And if the frequency domain position of part of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, or the frequency domain position of the second frequency domain resource is not within the frequency domain position of the first frequency domain resource, determining the target frequency domain resource according to the time interval between the uplink data channel or the uplink control channel and the channel detection signal and the frequency point switching duration of the device. Wherein the time interval is carried in a high layer signaling or a physical layer signaling; alternatively, the time interval is predetermined by the device.

Optionally, the frequency point switching duration of the device is a duration required by the device to switch from the center frequency point of the first frequency domain resource to the center frequency point of the third frequency domain resource; wherein the third frequency domain resources comprise the second frequency domain resources.

Optionally, the determining unit 520 is specifically configured to: and if the time interval is greater than or equal to the frequency point switching duration, switching to the central frequency point of the third frequency domain resource, and determining that the second frequency domain resource is the target frequency domain resource. And if the frequency domain position of the partial frequency domain resource of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, and the time interval is less than the frequency point switching duration, determining that the partial frequency domain resource is the target frequency domain resource.

Optionally, the sending unit 530 is further configured to: and if the frequency domain position of the partial frequency domain resource of the second frequency domain resource is within the frequency domain position of the first frequency domain resource and the time interval is less than the frequency point switching duration, not sending the channel detection signal. And if the frequency domain position of the second frequency domain resource is not within the frequency domain position of the first frequency domain resource and the time interval is less than the frequency point switching duration, not sending the channel detection signal.

The apparatus for sending a channel sounding signal provided in this embodiment of the present application may be configured to execute the method steps corresponding to the terminal device in the embodiment corresponding to fig. 3, where the implementation principle and the technical effect are similar, and are not described herein again.

Fig. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present application. As shown in fig. 6, the terminal device includes: a processor 610, and a receiver and a transmitter each coupled to the processor 610; which may be integrated together to form a transceiver 620. Or may be two separate physical entities. The terminal device further includes: a memory 630 and an input/output interface 640. Wherein the processor 610, the transceiver 620, the memory 630, and the input/output interface 640 may form an integrated circuit (chip) 650.

In particular, the transceiver 620 may be connected with an antenna 660. In the downlink direction, the transceiver 620 receives information transmitted by the access network device via the antenna 660 and sends the information to the processor 610 for processing. In the uplink direction, the processor 610 processes the data for the terminal device and sends the data to the access network device via the transceiver 620. The terminal device further includes: a memory 640, wherein the memory 640 is used for storing a program for implementing the above method embodiment, and the processor 610 calls the program to execute part of the operations of the above method embodiment.

Specifically, the processor 610 is configured to: acquiring, by the transceiver 620, frequency domain position information of a first frequency domain resource and frequency domain position information of a second frequency domain resource, where the first frequency domain resource is a workable frequency domain resource configured for the terminal device by the access network device, the second frequency domain resource is a frequency domain resource used for sending a channel sounding signal and indicated to the terminal device by the access network device, the frequency domain position information of the first frequency domain resource is used for indicating a frequency domain position of the first frequency domain resource, and the frequency domain position information of the second frequency domain resource is used for indicating a frequency domain position of the second frequency domain resource; determining a target frequency domain resource according to the relation between the frequency domain position of the first frequency domain resource and the frequency domain position of the second frequency domain resource; and instruct the transceiver 620 to transmit the channel sounding signal to the access network device on the target frequency domain resource.

Optionally, the processor 610 is specifically configured to: if the frequency domain position of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, determining the second frequency domain resource as the target frequency domain resource; if the frequency domain position of part of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, or the frequency domain position of the second frequency domain resource is not within the frequency domain position of the first frequency domain resource, determining the target frequency domain resource according to the time interval of the uplink data channel or the uplink control channel and the channel detection signal and the frequency point switching duration of the terminal equipment; wherein, the time interval is carried in a high layer signaling or a physical layer signaling; alternatively, the time interval is preset by the terminal device.

Optionally, the processor 610 is specifically configured to: if the time interval is greater than or equal to the frequency point switching duration, the terminal equipment is switched to the central frequency point of the third frequency domain resource, and the second frequency domain resource is determined to be the target frequency domain resource; and if the frequency domain positions of the partial frequency domain resources of the second frequency domain resources are within the frequency domain positions of the first frequency domain resources and the time interval is less than the frequency point switching duration, determining that the partial frequency domain resources are the target frequency domain resources.

Optionally, the transceiver 620 is further configured to: if the frequency domain positions of part of the frequency domain resources of the second frequency domain resources are within the frequency domain positions of the first frequency domain resources, and the time interval is less than the frequency point switching duration, not sending the channel detection signal; and if the frequency domain position of the second frequency domain resource is not in the frequency domain position of the first frequency domain resource and the time interval is less than the frequency point switching duration, not sending the channel detection signal.

The terminal device provided in the embodiment of the present application may be configured to execute the method steps corresponding to the terminal device in the embodiment corresponding to fig. 3, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 7 is a schematic structural diagram of an apparatus for transmitting a channel sounding signal according to another embodiment of the present application, as shown in fig. 7, the apparatus includes:

an obtaining unit 710, configured to obtain frequency domain position information of the first frequency domain resource and frequency domain position information of the second frequency domain resource; the first frequency domain resource is a frequency domain resource currently occupied by the device; the second frequency domain resource is a frequency domain resource indicated by the access network device to the apparatus for sending a channel sounding signal, the frequency domain location information of the first frequency domain resource is used to indicate the frequency domain location of the first frequency domain resource, and the frequency domain location information of the second frequency domain resource is used to indicate the frequency domain location of the second frequency domain resource.

A determining unit 720, configured to determine a target frequency domain resource according to the frequency domain position information of the first frequency domain resource, the frequency domain position information of the second frequency domain resource, and the maximum transmission bandwidth of the apparatus.

A sending unit 730, configured to send the channel sounding signal to the access network device on the target frequency domain resource.

Optionally, the determining unit 720 is specifically configured to: and determining the frequency domain resources which can be operated by the device according to the frequency domain position information of the first frequency domain resources and the maximum transmission bandwidth of the device. And determining the target frequency domain resource according to the relation between the frequency domain position of the operable frequency domain resource and the frequency domain position of the second frequency domain resource.

Optionally, the frequency domain position information of the first frequency domain resource is further used to determine a maximum frequency domain position or a minimum frequency domain position of the first frequency domain resource; the determining unit 720 is specifically configured to: and determining that the maximum frequency domain position of the first frequency domain resource is the maximum frequency domain position of the operable frequency domain resource, and the maximum transmission bandwidth is the bandwidth of the operable frequency domain resource. Or, determining that the minimum frequency domain position of the first frequency domain resource is the minimum frequency domain position of the operable frequency domain resource, and the maximum transmission bandwidth is the bandwidth of the operable frequency domain resource.

Optionally, the determining unit 720 is specifically configured to: and if the frequency domain position of the second frequency domain resource is within the frequency domain position of the workable frequency domain resource, determining that the second frequency domain resource is the target frequency domain resource. And if the frequency domain position of part of the frequency domain resources of the second frequency domain resources is within the frequency domain position of the operable frequency domain resources, or the frequency domain position of the second frequency domain resources is not within the frequency domain position of the operable frequency domain resources, determining the target frequency domain resources according to the time interval between the uplink data channel or the uplink control channel and the channel detection signal and the frequency point switching duration of the device. Wherein the time interval is carried in a high layer signaling or a physical layer signaling; alternatively, the time interval is predetermined by the device.

Optionally, the determining unit 720 is specifically configured to: if the time interval is greater than or equal to the frequency point switching duration, switching to a central frequency point of the third frequency domain resource, and determining that the second frequency domain resource is the target frequency domain resource; and if the frequency domain positions of the partial resources of the second frequency domain resources are within the frequency domain positions of the workable frequency domain resources and the time interval is less than the frequency point switching duration, determining that the partial frequency domain resources are the target frequency domain resources.

Optionally, the sending unit 730 is further configured to: if the frequency domain positions of part of the frequency domain resources of the second frequency domain resources are within the frequency domain positions of the workable frequency domain resources, and the time interval is less than the frequency point switching duration, not sending the channel detection signal; and if the frequency domain position of the second frequency domain resource is not within the frequency domain position of the working frequency domain resource, and the time interval is less than the frequency point switching duration, not sending the channel detection signal.

The apparatus for sending a channel sounding signal provided in this embodiment of the present application may be configured to execute the method steps corresponding to the terminal device in the embodiment corresponding to fig. 4, where the implementation principle and the technical effect are similar, and are not described herein again.

Fig. 8 is a schematic structural diagram of a terminal device according to another embodiment of the present application. As shown in fig. 8, the terminal device includes: a processor 810, and a receiver and a transmitter each coupled to processor 810; which may be integrated together to form a transceiver 820. Or may be two separate physical entities. The terminal device further includes: a memory 830 and an input/output interface 840. Wherein the processor 810, transceiver 820, memory 830, and input/output interface 840 may form an integrated circuit (chip) 850.

In particular, the transceiver 820 may be coupled to an antenna 860. In the downlink direction, transceiver 820 receives information transmitted by access network devices via antenna 860 and transmits the information to processor 810 for processing. In the uplink direction, the processor 810 processes the data for the terminal device and sends the data to the access network device via the transceiver 820. The terminal device further includes: a memory 840, the memory 840 is used for storing the program for implementing the above method embodiment, and the processor 810 calls the program to execute part of the operations of the above method embodiment.

In particular, processor 810 is configured to: acquiring, by a transceiver 820, frequency domain position information of a first frequency domain resource and frequency domain position information of a second frequency domain resource, where the first frequency domain resource is a frequency domain resource currently occupied by the terminal device, the second frequency domain resource is a frequency domain resource indicated by the access network device to the terminal device and used for sending a channel sounding signal, the frequency domain position information of the first frequency domain resource is used for indicating a frequency domain position of the first frequency domain resource, and the frequency domain position information of the second frequency domain resource is used for indicating a frequency domain position of the second frequency domain resource; determining a target frequency domain resource according to the frequency domain position information of the first frequency domain resource, the frequency domain position information of the second frequency domain resource and the maximum transmission bandwidth of the terminal equipment; and instruct the transceiver 820 to transmit the channel sounding signal to the access network device on the target frequency domain resource.

Optionally, the processor 810 is specifically configured to: determining the frequency domain resources which can be operated by the terminal equipment according to the frequency domain position information of the first frequency domain resources and the maximum transmission bandwidth of the terminal equipment; and determining the target frequency domain resource according to the relation between the frequency domain position of the workable frequency domain resource and the frequency domain position of the second frequency domain resource.

Optionally, the frequency domain position information of the first frequency domain resource is further used to determine a maximum frequency domain position or a minimum frequency domain position of the first frequency domain resource; the processor 810 is specifically configured to: determining the maximum frequency domain position of the first frequency domain resource as the maximum frequency domain position of the operable frequency domain resource, and the maximum transmission bandwidth as the bandwidth of the operable frequency domain resource; or, determining that the minimum frequency domain position of the first frequency domain resource is the minimum frequency domain position of the operable frequency domain resource, and the maximum transmission bandwidth is the bandwidth of the operable frequency domain resource.

Optionally, the processor 810 is specifically configured to: if the frequency domain position of the second frequency domain resource is within the frequency domain position of the workable frequency domain resource, determining that the second frequency domain resource is the target frequency domain resource; if the frequency domain position of the partial frequency domain resource of the second frequency domain resource is within the frequency domain position of the operable frequency domain resource, or the frequency domain position of the second frequency domain resource is not within the frequency domain position of the operable frequency domain resource, determining the target frequency domain resource according to the time interval between the uplink data channel or the uplink control channel and the channel detection signal and the frequency point switching duration of the terminal equipment;

wherein the time interval is carried in a high layer signaling or a physical layer signaling; or, the time interval is preset by the terminal device.

Optionally, the frequency point switching duration of the terminal device is a duration required when the terminal device switches from the center frequency point of the first frequency domain resource to the center frequency point of the third frequency domain resource; wherein the third frequency domain resources comprise the second frequency domain resources.

Optionally, the processor 810 is specifically configured to: if the time interval is greater than or equal to the frequency point switching duration, switching to a central frequency point of the third frequency domain resource, and determining that the second frequency domain resource is the target frequency domain resource; and if the frequency domain positions of the partial resources of the second frequency domain resources are within the frequency domain positions of the workable frequency domain resources and the time interval is less than the frequency point switching duration, determining that the partial frequency domain resources are the target frequency domain resources.

Optionally, the transceiver 820 is further configured to: if the frequency domain positions of part of the frequency domain resources of the second frequency domain resources are within the frequency domain positions of the workable frequency domain resources, and the time interval is less than the frequency point switching duration, not sending the channel detection signal; and if the frequency domain position of the second frequency domain resource is not within the frequency domain position of the working frequency domain resource, and the time interval is less than the frequency point switching duration, not sending the channel detection signal.

The terminal device provided in the embodiment of the present application may be configured to execute the method steps corresponding to the terminal device in the embodiment corresponding to fig. 4, which have similar implementation principles and technical effects and are not described herein again.

Claims

1. A method for transmitting a channel sounding signal, comprising:

the method comprises the steps that a terminal device obtains frequency domain position information of a first frequency domain resource and frequency domain position information of a second frequency domain resource, wherein the first frequency domain resource is a workable frequency domain resource configured for the terminal device by an access network device, the second frequency domain resource is a frequency domain resource which is indicated to the terminal device by the access network device and used for sending a channel detection signal, the frequency domain position information of the first frequency domain resource is used for indicating a frequency domain position of the first frequency domain resource, and the frequency domain position information of the second frequency domain resource is used for indicating a frequency domain position of the second frequency domain resource;

the terminal equipment determines a target frequency domain resource according to the relation between the frequency domain position of the first frequency domain resource and the frequency domain position of the second frequency domain resource;

and the terminal equipment sends the channel detection signal to the access network equipment on the target frequency domain resource.

2. The method of claim 1, wherein the terminal device determines the target frequency domain resource according to a relationship between the frequency domain position of the first frequency domain resource and the frequency domain position of the second frequency domain resource, and comprises:

if the frequency domain position of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, the terminal device determines that the second frequency domain resource is the target frequency domain resource;

if the frequency domain position of the partial resource of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, or the frequency domain position of the second frequency domain resource is not within the frequency domain position of the first frequency domain resource, the terminal device determines the target frequency domain resource according to the time interval between the uplink data channel or the uplink control channel and the channel detection signal, and the frequency point switching duration of the terminal device;

3. The method according to claim 2, wherein the frequency point switching duration of the terminal device is a duration required when the terminal device switches from the center frequency point of the first frequency domain resource to the center frequency point of the third frequency domain resource;

wherein the third frequency domain resources comprise the second frequency domain resources.

4. The method according to claim 3, wherein the determining, by the terminal device, the target frequency domain resource according to the time interval between the uplink data channel or the uplink control channel and the channel sounding signal and the frequency point switching duration of the terminal device includes:

if the time interval is greater than or equal to the frequency point switching duration, the terminal equipment is switched to a central frequency point of the third frequency domain resource, and the second frequency domain resource is determined to be the target frequency domain resource;

and if the frequency domain position of the partial frequency domain resource of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, and the time interval is less than the frequency point switching duration, determining that the partial frequency domain resource is the target frequency domain resource.

5. The method of claim 2 or 3, further comprising:

if the frequency domain positions of part of the frequency domain resources of the second frequency domain resources are within the frequency domain positions of the first frequency domain resources, and the time interval is less than the frequency point switching duration, not sending the channel detection signal;

and if the frequency domain position of the second frequency domain resource is not within the frequency domain position of the first frequency domain resource and the time interval is less than the frequency point switching duration, not sending the channel detection signal.

6. A method for transmitting a channel sounding signal, comprising:

the method comprises the steps that terminal equipment acquires frequency domain position information of first frequency domain resources and frequency domain position information of second frequency domain resources, the first frequency domain resources are frequency domain resources occupied by the terminal equipment at present, the second frequency domain resources are frequency domain resources which are indicated to the terminal equipment by access network equipment and used for sending channel detection signals, the frequency domain position information of the first frequency domain resources is used for indicating the frequency domain positions of the first frequency domain resources, and the frequency domain position information of the second frequency domain resources is used for indicating the frequency domain positions of the second frequency domain resources;

the terminal equipment determines a target frequency domain resource according to the frequency domain position information of the first frequency domain resource, the frequency domain position information of the second frequency domain resource and the maximum sending bandwidth of the terminal equipment;

7. The method of claim 6, wherein the determining, by the terminal device, the target frequency domain resource according to the frequency domain position information of the first frequency domain resource, the frequency domain position information of the second frequency domain resource, and the maximum transmission bandwidth of the terminal device, comprises:

the terminal equipment determines the frequency domain resources which can work according to the frequency domain position information of the first frequency domain resources and the maximum sending bandwidth of the terminal equipment;

and the terminal equipment determines the target frequency domain resource according to the relation between the frequency domain position of the operable frequency domain resource and the frequency domain position of the second frequency domain resource.

8. The method of claim 7,

the frequency domain position information of the first frequency domain resource is further used for determining the maximum frequency domain position or the minimum frequency domain position of the first frequency domain resource;

the determining, by the terminal device, the frequency domain resource where the terminal device can operate according to the frequency domain location information of the first frequency domain resource and the maximum transmission bandwidth of the terminal device includes:

the terminal equipment determines that the maximum frequency domain position of the first frequency domain resource is the maximum frequency domain position of the operable frequency domain resource, and the maximum sending bandwidth is the bandwidth of the operable frequency domain resource; alternatively, the first and second electrodes may be,

and the terminal equipment determines that the minimum frequency domain position of the first frequency domain resource is the minimum frequency domain position of the operable frequency domain resource, and the maximum transmission bandwidth is the bandwidth of the operable frequency domain resource.

9. The method according to claim 7 or 8, wherein the terminal device determines the target frequency domain resource according to the relationship between the frequency domain position of the operable frequency domain resource and the frequency domain position of the second frequency domain resource, comprising:

if the frequency domain position of the second frequency domain resource is within the frequency domain position of the workable frequency domain resource, the terminal device determines that the second frequency domain resource is the target frequency domain resource;

if the frequency domain position of part of the frequency domain resources of the second frequency domain resources is within the frequency domain position of the operable frequency domain resources, or the frequency domain position of the second frequency domain resources is not within the frequency domain position of the operable frequency domain resources, the terminal device determines the target frequency domain resources according to the time interval between the uplink data channel or the uplink control channel and the channel detection signal, and the frequency point switching duration of the terminal device;

10. The method according to claim 9, wherein the frequency point switching duration of the terminal device is a duration required when the terminal device switches from the center frequency point of the first frequency domain resource to the center frequency point of the third frequency domain resource;

11. The method according to claim 10, wherein the determining, by the terminal device, the target frequency domain resource according to a time interval between an uplink data channel or an uplink control channel and the channel sounding signal and a frequency point switching duration of the terminal device, comprises:

and if the frequency domain positions of the partial resources of the second frequency domain resources are within the frequency domain positions of the workable frequency domain resources and the time interval is less than the frequency point switching duration, determining that the partial frequency domain resources are the target frequency domain resources.

12. The method of claim 10, further comprising:

if the frequency domain positions of part of the frequency domain resources of the second frequency domain resources are within the frequency domain positions of the workable frequency domain resources, and the time interval is less than the frequency point switching duration, not sending the channel detection signal;

and if the frequency domain position of the second frequency domain resource is not within the frequency domain position of the working frequency domain resource, and the time interval is less than the frequency point switching duration, not sending the channel detection signal.

13. A terminal device, comprising: a processor, and a receiver and a transmitter respectively coupled to the processor;

the processor is configured to:

acquiring, by the receiver, frequency domain position information of a first frequency domain resource and frequency domain position information of a second frequency domain resource, where the first frequency domain resource is a workable frequency domain resource configured for the terminal device by an access network device, the second frequency domain resource is a frequency domain resource used for sending a channel sounding signal and indicated to the terminal device by the access network device, the frequency domain position information of the first frequency domain resource is used for indicating a frequency domain position of the first frequency domain resource, and the frequency domain position information of the second frequency domain resource is used for indicating a frequency domain position of the second frequency domain resource;

determining a target frequency domain resource according to the relation between the frequency domain position of the first frequency domain resource and the frequency domain position of the second frequency domain resource; and

and instructing the transmitter to send the channel sounding signal to the access network equipment on the target frequency domain resource.

14. The terminal device of claim 13, wherein the processor is specifically configured to:

if the frequency domain position of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, determining that the second frequency domain resource is the target frequency domain resource;

if the frequency domain position of the partial resource of the second frequency domain resource is within the frequency domain position of the first frequency domain resource, or the frequency domain position of the second frequency domain resource is not within the frequency domain position of the first frequency domain resource, determining the target frequency domain resource according to the time interval between an uplink data channel or an uplink control channel and the channel detection signal and the frequency point switching duration of the terminal equipment;

15. The terminal device according to claim 14, wherein the frequency point switching duration of the terminal device is a duration required when the terminal device switches from the center frequency point of the first frequency domain resource to the center frequency point of the third frequency domain resource;

16. The terminal device of claim 15, wherein the processor is specifically configured to:

17. The terminal device according to claim 14 or 15, wherein the transmitter is further configured to:

18. A terminal device, comprising: a processor, and a receiver and a transmitter respectively coupled to the processor;

the processor is configured to:

acquiring, by the receiver, frequency domain position information of a first frequency domain resource and frequency domain position information of a second frequency domain resource, where the first frequency domain resource is a frequency domain resource currently occupied by the terminal device, the second frequency domain resource is a frequency domain resource indicated by an access network device to the terminal device and used for sending a channel sounding signal, the frequency domain position information of the first frequency domain resource is used to indicate a frequency domain position of the first frequency domain resource, and the frequency domain position information of the second frequency domain resource is used to indicate a frequency domain position of the second frequency domain resource;

determining a target frequency domain resource according to the frequency domain position information of the first frequency domain resource, the frequency domain position information of the second frequency domain resource and the maximum transmission bandwidth of the terminal equipment; and

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

determining the frequency domain resources which can be operated by the terminal equipment according to the frequency domain position information of the first frequency domain resources and the maximum transmission bandwidth of the terminal equipment;

and determining the target frequency domain resource according to the relation between the frequency domain position of the workable frequency domain resource and the frequency domain position of the second frequency domain resource.

20. The terminal device of claim 19,

the processor is specifically configured to:

determining the maximum frequency domain position of the first frequency domain resource as the maximum frequency domain position of the operable frequency domain resource, and the maximum transmission bandwidth as the bandwidth of the operable frequency domain resource; alternatively, the first and second electrodes may be,

and determining the minimum frequency domain position of the first frequency domain resource as the minimum frequency domain position of the operable frequency domain resource, and the maximum transmission bandwidth as the bandwidth of the operable frequency domain resource.

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

if the frequency domain position of the second frequency domain resource is within the frequency domain position of the workable frequency domain resource, determining that the second frequency domain resource is the target frequency domain resource;

if the frequency domain position of the partial frequency domain resource of the second frequency domain resource is within the frequency domain position of the operable frequency domain resource, or the frequency domain position of the second frequency domain resource is not within the frequency domain position of the operable frequency domain resource, determining the target frequency domain resource according to the time interval between the uplink data channel or the uplink control channel and the channel detection signal and the frequency point switching duration of the terminal equipment;

22. The terminal device according to claim 21, wherein the frequency point switching duration of the terminal device is a duration required when the terminal device switches from the center frequency point of the first frequency domain resource to the center frequency point of the third frequency domain resource;

23. The terminal device of claim 22, wherein the processor is specifically configured to:

if the time interval is greater than or equal to the frequency point switching duration, switching to a central frequency point of the third frequency domain resource, and determining that the second frequency domain resource is the target frequency domain resource;

24. The terminal device according to claim 21 or 22, wherein the transmitter is further configured to: