Detection reference signal transmission method and related products

Abstract

Embodiments of this application disclose a method for transmitting sounding reference signals and related products. The method includes: A terminal device sends a first sounding reference signal (SRS) to a network device on an SRS region of N subbands in the SRS bandwidth; the terminal device receives first downlink control information (DCI); the terminal device obtains subband indication information from the first DCI, and the subband indication information is used to indicate a target subband among the N subbands; the terminal device sends a second SRS to the network device on the target subband. In this application, the terminal device obtains subband indication information from the first downlink control information, and thus sends an SRS to the network device on the target subband indicated by the subband indication information.

Description

Technical Field

[0001] The present invention relates to the field of communications, and in particular, to a method for transmitting a sounding reference signal and related products. Background Art

[0002] In the fifth-generation (5G) communication, the communication standard release 17 (Rel-17) plans to introduce a partial sounding across frequency scheme to solve the problem of sounding reference signal (SRS) coverage.

[0003] In an existing scheme, the SRS bandwidth is divided into at least two subbands. This method is specifically divided into two steps. The first step is that the terminal device sends sounding reference information to the network device on the resource blocks (RBs) of each subband. The second step is that the network device determines one or more target subbands from at least two subbands by evaluating the SRS received for each subband bandwidth, and instructs the terminal device to send the SRS again on the target subband bandwidth for further channel sounding.

[0004] However, the power spectral density of the SRS transmitted on the subband in the existing scheme is not high. Therefore, it is necessary to study a scheme that can improve the power spectral density of the transmitted SRS. Summary of the Invention

[0005] An embodiment of the present application provides a method for transmitting a sounding reference signal and related products. The terminal device obtains subband indication information from the first downlink control information, and thus sends the SRS to the network device on the target subband indicated by the subband indication information.

[0006] In a first aspect, an embodiment of the present application provides a method for transmitting a sounding reference signal. The method may include: the terminal device sends a first sounding reference signal SRS to the network device on the SRS regions of N subbands of the sounding reference signal SRS bandwidth, where N is greater than 1; each of the N subbands includes one of the SRS regions, and the number of resource blocks (RBs) of the SRS region is less than or equal to the number of RBs of the subband to which the SRS region belongs; the terminal device receives the first downlink control information DCI; the terminal device obtains subband indication information from the first DCI, and the subband indication information is used to indicate the target subband among the N subbands; the terminal device sends a second SRS to the network device on the target subband.

[0007] In an optional implementation, before the terminal device sends a first sounding reference signal (SRS) on an SRS region of N subbands of the SRS bandwidth to the network device, the method further includes: the terminal device receives SRS configuration information and a second downlink control information (DCI), where the second DCI is used to trigger a set of SRS resources in the SRS configuration information and indicate to the terminal device to use the SRS resources to send the first SRS.

[0008] In an optional implementation, when the terminal device sends a second SRS to the network device on the target subband, it includes: the terminal device uses the SRS resources triggered by the second DCI to send the second SRS to the network device on the target subband.

[0009] In an optional implementation, after the terminal device obtains subband indication information from the first DCI and before the terminal device sends a second SRS to the network device on the target subband, the method further includes: the terminal device determines a position encoding of the target subband on the SRS bandwidth according to the subband indication information and the SRS resources, where the position encoding of the target subband is used to indicate the target subband among the N subbands.

[0010] In an optional implementation, the subband indication information includes a subband position information; the SRS resources include a starting configuration position of the SRS region in the subband; when the terminal device determines the position encoding of the target subband on the SRS bandwidth according to the subband indication information and the SRS resources, it includes: the terminal device performs a modulo operation on the sum of the position encoding included in the subband position information and the starting configuration position with N to obtain the position of the target subband.

[0011] In an optional implementation, the subband indication information includes a subband position information; the SRS resources include a starting configuration position of the SRS region in the subband and candidate positions of cyclic shift; the number of resource block (RB) configurations of the subband in the SRS bandwidth is M; when the terminal device determines the position encoding of the target subband on the SRS bandwidth according to the subband indication information and the SRS resources, it includes: the terminal device performs a modulo operation on the candidate position with the difference between N and M to obtain a first modulo result; the terminal device performs a modulo operation on the sum of the position encoding included in the subband position information, the starting configuration position, and the first modulo result with N to obtain the position encoding of the target subband.

[0012] In an optional implementation, the sub-band indication information includes at least two sub-band position information; before the terminal device receives the first DCI, the method further includes: the terminal device receives position indication information, and the position indication information is used to indicate the target sub-band position information among the at least two sub-band position information; the position code included in the target sub-band position information is the position code of the target sub-band on the SRS bandwidth, and the position code of the target sub-band is used to indicate the target sub-band among the N sub-bands.

[0013] In an optional implementation, the number of RB configurations of the sub-bands of the SRS bandwidth is M; the SRS resource includes the starting configuration position of the SRS area in the sub-band; the terminal device sends a first sounding reference signal SRS to the network device on the SRS areas included in the N sub-bands of the SRS bandwidth, including: when the number of RBs of the first sub-band among the N sub-bands is M, the terminal device determines that the starting position of the SRS area of the first sub-band is the starting configuration position, and the first sub-band is any one of the N sub-bands; the terminal device sends the first SRS to the network device on the SRS area of the first sub-band.

[0014] In an optional implementation, the number of RB configurations of the sub-bands of the SRS bandwidth is M; the terminal device sending a first sounding reference signal SRS to the network device on the SRS areas included in the N sub-bands of the SRS bandwidth further includes: when the number of RBs of the second sub-band among the N sub-bands is less than M, the terminal device determines not to send the first SRS on the second sub-band; or, the terminal device determines that the starting position of the SRS area of the second sub-band is the position of the first available RB for sending SRS in the second sub-band, and the second sub-band is any one of the N sub-bands, and sends the first SRS to the network device on the SRS area of the second sub-band.

[0015] In a second aspect, an embodiment of the present application provides a method for transmitting a sounding reference signal. The method may include: sending a first SRS on the SRS areas of N sub-bands of the SRS bandwidth, where N is greater than 1; each of the N sub-bands includes one SRS area, and the number of resource blocks RB of the SRS area is less than or equal to the number of RBs of the sub-band to which the SRS area belongs.

[0016] In an optional implementation, the SRS region is indicated by the network device at the starting configured position of the subband; the terminal device sends a first sounding reference signal SRS to the network device on the SRS regions of N subbands of the SRS bandwidth, including: when the N subbands include a first subband, the terminal device determines the starting position of the SRS region of the first subband as the starting configured position; the terminal device sends the first SRS to the network device on the SRS region of the first subband among the N subbands.

[0017] In an optional implementation, the terminal device sends a first sounding reference signal SRS to the network device on the SRS regions included in N subbands of the SRS bandwidth, including: when the N subbands include a second subband, the terminal device determines not to send the first SRS on the second subband; or, the terminal device determines the starting position of the SRS region of the second subband as the position of the first resource block (RB) available for sending SRS in the second subband, and sends the first SRS to the network device on the SRS region of the second subband among the N subbands.

[0018] In a third aspect, an embodiment of the present application provides a method for transmitting a sounding reference signal. The method may include: the network device receives a first SRS sent by the terminal device, where the first SRS is sent by the terminal device on the SRS regions included in N subbands of the SRS bandwidth, and N is greater than 1; each of the N subbands includes one SRS region, and the number of resource blocks (RBs) of the SRS region is less than or equal to the number of RBs of the subband to which the SRS region belongs; the network device sends a first downlink control information (DCI) to the terminal device, where the first DCI includes subband indication information for indicating the target subband for the terminal device to send a second SRS; the network device receives the second SRS sent by the terminal device on the target subband.

[0019] In an optional implementation, before the network device receives the first SRS sent by the terminal device, the method further includes: the network device sends SRS configuration information and a second DCI to the terminal device, where the second DCI is used to trigger a set of SRS resources in the SRS configuration information and indicate the terminal device to use the SRS resources to send the first SRS.

[0020] In an optional implementation, the first DCI is further used to indicate the terminal device to send the second SRS to the network device using the SRS resources triggered by the second DCI.

[0021] In an optional implementation, the sub-band indication information includes a sub-band position information; the SRS resource includes the starting configuration position of the SRS region in the sub-band; the position code of the target sub-band is the result of taking the modulo operation of the sum of the position code included in the sub-band position information and the starting configuration position with N; the position code of the target sub-band is used to indicate the target sub-band among the N sub-bands.

[0022] In an optional implementation, the sub-band indication information includes a sub-band position information; the SRS resource includes the starting configuration position of the SRS region in the sub-band and the candidate positions of cyclic shift; the number of RB configurations of the sub-bands in the SRS bandwidth is M; the position code of the target sub-band is the result of taking the modulo operation of the sum of the position code included in the sub-band position information, the starting configuration position and the first modulo result with N; the first modulo result is obtained by taking the modulo operation of the candidate position with the difference between N and M.

[0023] In an optional implementation, the sub-band indication information includes at least two sub-band position information; before the network device sends the first DCI to the terminal device, the method further includes: the network device sends position indication information to the terminal device; the position indication information is used to determine the target sub-band position information from the at least two sub-band position information; the position code included in the target sub-band position information is the position code of the target sub-band; the position code of the target sub-band is used to indicate the target sub-band among the N sub-bands.

[0024] In an optional implementation, before the network device receives the first SRS sent by the terminal device and after the network device sends the first DCI to the terminal device, the method further includes: the network device determines the target sub-band among the N sub-bands according to the received power of the first SRS.

[0025] In a fourth aspect, an embodiment of the present application provides a sounding reference signal transmission method, which may include: a network device receives a first SRS, the first SRS is sent by the terminal device on an SRS region included in N sub-bands of an SRS bandwidth, N>1; the N sub-bands are a first sub-band and / or a second sub-band, the number of RBs of the first sub-band is M, and the number of RBs of the second sub-band is less than M; each of the N sub-bands includes one SRS region, and the number of resource blocks RB of the SRS region is less than or equal to the number of RBs of the sub-band to which the SRS region belongs.

[0026] In a fifth aspect, an embodiment of the present application provides a terminal device, which includes: a sending unit, configured to send a first sounding reference signal (SRS) to a network device on an SRS region of N subbands of an SRS bandwidth, where N>1; each of the N subbands includes one such SRS region, and the number of resource blocks (RBs) of the SRS region is less than or equal to the number of RBs of the subband to which the SRS region belongs; a receiving unit, configured to receive a first downlink control information (DCI); an obtaining unit, configured to obtain subband indication information from the first DCI, where the subband indication information is used to indicate a target subband among the N subbands; and the sending unit is further configured to send a second SRS to the network device on the target subband.

[0027] In a sixth aspect, an embodiment of the present application provides a terminal device, which includes: a sending unit, configured to send a first SRS to a network device on an SRS region of N subbands of an SRS bandwidth, where N≥1; the number of RB configurations of the subbands of the SRR bandwidth is M; the N subbands are a first subband and / or a second subband, the number of RBs of the first subband is M, and the number of RBs of the second subband is less than M; each of the N subbands includes one such SRS region, and the number of resource blocks (RBs) of the SRS region is less than or equal to the number of RBs of the subband to which the SRS region belongs.

[0028] In a seventh aspect, an embodiment of the present application provides a network device, which includes: a receiving unit, configured to receive a first SRS sent by a terminal device, where the first SRS is sent by the terminal device on an SRS region included in N subbands of an SRS bandwidth, and N>1; each of the N subbands includes one such SRS region, and the number of resource blocks (RBs) of the SRS region is less than or equal to the number of RBs of the subband to which the SRS region belongs; a sending unit, configured to send a first DCI to the terminal device, where the first DCI includes subband indication information, and the subband indication information is used to indicate that the terminal device sends a second SRS on the target subband; and the receiving unit is further configured to receive the second SRS sent by the terminal device.

[0029] In an eighth aspect, an embodiment of the present application provides a network device, which includes: a receiving unit, configured to receive a first SRS, where the first SRS is transmitted by the terminal device on an SRS region included in N sub-bands of an SRS bandwidth, and N is greater than or equal to 1; the N sub-bands are a first sub-band and / or a second sub-band, the number of RBs of the first sub-band is M, and the number of RBs of the second sub-band is less than M; each of the N sub-bands includes one SRS region, and the number of resource blocks (RBs) of the SRS region is less than or equal to the number of RBs of the sub-band to which the SRS region belongs.

[0030] In a ninth aspect, an embodiment of the present application provides a terminal device, which includes a receiver and a transmitter, and further includes: a processor, adapted to implement one or more instructions; and a computer storage medium, where the computer storage medium stores one or more instructions, and the one or more instructions are adapted to be loaded and executed by the processor to perform the method according to any one of the first aspect or the second aspect as described above.

[0031] In a tenth aspect, an embodiment of the present application provides a network device, which includes a receiver and a transmitter, and further includes: a processor, adapted to implement one or more instructions; and a computer storage medium, where the computer storage medium stores one or more instructions, and the one or more instructions are adapted to be loaded and executed by the processor to perform the method according to any one of the second aspect or the third aspect as described above.

[0032] In an eleventh aspect, an embodiment of the present application provides a communication system, which includes a network device and a terminal device, where the terminal device is configured to perform the method according to any one of the first aspect, and the network device is configured to perform the method according to any one of the third aspect.

[0033] In a twelfth aspect, an embodiment of the present application provides a communication system, which includes a network device and a terminal device, where the terminal device is configured to perform the method according to any one of the second aspect, and the network device is configured to perform the method according to any one of the fourth aspect.

[0034] In a thirteenth aspect, an embodiment of the present application provides a computer storage medium, which stores one or more instructions, and the one or more instructions are adapted to be loaded and executed by a processor to perform the method according to any one of the first aspect to the fourth aspect as described above.

[0035] An embodiment of the present application provides a sounding reference signal transmission method and related products. The terminal device obtains sub-band indication information from the first downlink control information, and thus sends an SRS to the network device on a target sub-band indicated by the sub-band indication information. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] To more clearly illustrate the technical solutions in the embodiments of the present application or the background art, the following will describe the drawings required to be used in the embodiments of the present application or the background art.

[0037] Figure 1 A schematic diagram of a network architecture provided by an embodiment of the present application;

[0038] Figure 2 A flowchart of a method for transmitting a sounding reference signal provided by an embodiment of the present application;

[0039] Figure 3 A schematic diagram of a first SRS and a second SRS provided by an embodiment of the present application;

[0040] Figure 4 A schematic diagram of a first SRS provided by an embodiment of the present application;

[0041] Figure 5 Another flowchart of a method for transmitting a sounding reference signal provided by an embodiment of the present application;

[0042] Figure 6 Another flowchart of a method for transmitting a sounding reference signal provided by an embodiment of the present application;

[0043] Figure 7 Another flowchart of a method for transmitting a sounding reference signal provided by an embodiment of the present application;

[0044] Figure 8 Another flowchart of a method for transmitting a sounding reference signal provided by an embodiment of the present application;

[0045] Figure 9 A schematic diagram of the structure of a terminal device provided by an embodiment of the present application;

[0046] Figure 10 A schematic diagram of the structure of a network device provided by an embodiment of the present application;

[0047] Figure 11 Another schematic diagram of the structure of a terminal device provided by an embodiment of the present application;

[0048] Figure 12 Another schematic diagram of the structure of a network device provided by an embodiment of the present application;

[0049] Figure 13 Another schematic diagram of the structure of a network device provided by an embodiment of the present application;

[0050] Figure 14 Another schematic diagram of the structure of a terminal device provided by an embodiment of the present application. Detailed implementation manners

[0051] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

[0052] To enable those skilled in the art to better understand the solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments.

[0053] The terms "first", "second", "third", etc. in the description and claims of the present application and the above accompanying drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a series of steps or modules are included. A method, system, product or device is not necessarily limited to those steps or modules clearly listed, but may include other steps or modules not clearly listed or inherent to these processes, methods, products or devices. "And / or" is used to indicate a selection of one or both of the two objects connected thereto.

[0054] The embodiments of the present application provide a method for transmitting a sounding reference signal and related products. The terminal device obtains sub-band indication information from the first downlink control information, and thus sends an SRS to the network device on the target sub-band indicated by the sub-band indication information.

[0055] The terminal device in the embodiments of the present application may refer to a user equipment, an access terminal device, a user unit, a user station, a mobile station, a mobile terminal, a remote station, a remote terminal device, a mobile device, a user terminal device, a terminal device, a wireless communication device, a user agent or a user device. The terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing devices connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile network (PLMN), etc. The embodiments of the present application are not limited thereto.

[0056] In addition, in the embodiments of the present application, the terminal device may also be a terminal device in an Internet of Things (IoT) system. The IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, so as to realize an intelligent network of human-machine interconnection and object-object interconnection.

[0057] The network device in the embodiments of the present application may be a device for communicating with the terminal device. The network device may be a base transceiver station (BTS) in a global system of mobile communication (GSM) system or a code division multiple access (CDMA) system, or a node B (NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (CRAN) scenario, or the network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, and a network device in a 5G network or a network device in a future evolved PLMN network, etc. The embodiments of the present application do not limit this.

[0058] Figure 1 is a schematic architecture diagram of a communication system applicable to the embodiments of the present application. The architecture diagram includes: a network device 102, and the network device 102 may include 1 antenna or multiple antennas. For example, antennas 104, 106, 108, 110, 112, and 114. In addition, the network device 102 may additionally include a transmitter chain and a receiver chain. Those of ordinary skill in the art can understand that they may both include multiple components related to signal transmission and reception (such as a processor, a modulator, a multiplexer, a demodulator, a demultiplexer, or an antenna, etc.).

[0059] The network device 102 may communicate with multiple terminal devices (such as terminal device 116 and terminal device 122). However, it can be understood that the network device 102 may communicate with any number of terminal devices similar to terminal device 116 or terminal device 122. Terminal devices 116 and 122 may be, for example, cellular phones, smart phones, portable computers, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and / or any other suitable devices for communicating on the wireless communication system 100.

[0060] AsFigure 1 As shown, the terminal device 116 communicates with antennas 112 and 114, where antennas 112 and 114 send information to the terminal device 116 via the forward link (also known as the downlink) 118 and receive information from the terminal device 116 via the reverse link (also known as the uplink) 120. In addition, the terminal device 122 communicates with antennas 104 and 106, where antennas 104 and 106 send information to the terminal device 122 via the forward link 124 and receive information from the terminal device 122 via the reverse link 126.

[0061] In addition, the communication system 100 can be a 5G network or other network, Figure 1 which is just a simplified schematic diagram for illustration. The network may also include other network devices, and this application does not limit this, Figure 1 which are not drawn in the figure.

[0062] Figure 2 The figure is a flowchart of a method for transmitting a sounding reference signal provided by an embodiment of this application. As Figure 2 shown, this method is a method for a terminal device to transmit a sounding reference signal. The method may include:

[0063] 201. The terminal device sends a first SRS to the network device on the SRS regions of N subbands of the sounding reference signal (SRS) bandwidth.

[0064] The SRS bandwidth is the uplink system bandwidth or a partial bandwidth (bandwidth part, BWP) of the terminal device (user equipment, UE) or the bandwidth allocated to the terminal device by the network device. Among the N subbands of the SRS bandwidth, each subband includes an SRS region, and the number of resource blocks (RBs) in the SRS region is less than or equal to the number of RBs in the subband to which the SRS region belongs.

[0065] A subband of a bandwidth is a frequency band obtained by dividing the bandwidth in the frequency domain. In the embodiments of this application, the subband has the following characteristics: the subband includes a continuous plurality of RBs in the frequency domain; in a bandwidth, the regions of each subband do not overlap; in a bandwidth, the sizes of each subband are generally the same, and the subbands of the same size are configured subbands, but since the bandwidth may not be a multiple of the configured subband, in a bandwidth, there are subbands that are not configured subbands, such as the first subband or the last subband in a bandwidth.

[0066] As Figure 3 shown, the first SRS can be a frequency-hopping SRS or a non-frequency-hopping SRS. Figure 3 The first frequency-hopping SRS and the first non-frequency-hopping SRS are described. Both the first frequency-hopping SRS and the first non-frequency-hopping SRS are transmitted through the SRS regions of the subbands. As Figure 3As shown, the RB data included in the SRS region is less than the RB data included in the subband. When the first SRS transmission power remains unchanged, by transmitting the first SRS on the SRS region of the subband, the power spectral density (PSD) of the first SRS can be increased.

[0067] It should be noted that in the embodiments provided in this application, an RB (resource block) may be a physical resource block (PRB), or a common resource block (CRB), or a virtual resource block (VRB).

[0068] 202. The terminal device receives the first downlink control information (DCI).

[0069] The terminal device receives the first DCI through the physical downlink control channel. The first DCI is used to instruct the terminal device to send the second SRS and the SRS resource used by the terminal device to send the second SRS. The first DCI may be common downlink control information (common DCI), or DCI exclusive to the terminal device.

[0070] 203. The terminal device obtains subband indication information from the first DCI.

[0071] The subband indication information is used to indicate the target subband among N subbands.

[0072] In some embodiments, when the first DCI is DCI exclusive to the terminal device, the subband indication information includes the position coding of the target subband on the SRS bandwidth. The position coding of the target subband is used to instruct the terminal device to determine the target subband from N subbands. In other embodiments, when the first DCI is common downlink control information, the subband indication information may be a subband position information, or multiple subband position information. The subband position information is used to indicate the position coding of the target subband for the terminal device.

[0073] 204. The terminal device sends the second SRS to the network device on the target subband.

[0074] The terminal device may use all the RBs of the target subband, or use some of the RBs of the target subband to send the second SRS to further detect the target subband. It should be noted that the target subband may be one of the N subbands, or M of the N subbands, where 1 < M ≤ N.

[0075] As shown Figure 3 in FIG. Figure 3 , the terminal device sends a second SRS to the network device through one of the N subbands. The subband used to send the second SRS is the target subband. In Figure 3 FIG. Figure 3 , the target subband is subband 2, and the terminal device uses all RBs of the target subband to send the second SRS.

[0076] Figure 5 FIG. Figure 5 is a flowchart of a sounding reference signal transmission method provided by an embodiment of the present application. As shown Figure 5 in FIG. Figure 5 , this method is a method for the network device to transmit a sounding reference signal. The method may include:

[0077] 501. The network device receives the first SRS sent by the terminal device.

[0078] The first SRS is sent by the terminal device on the SRS region included in the N subbands of the SRS bandwidth, where N>1; each of the N subbands includes an SRS region, and the number of resource blocks RB of the SRS region is less than or equal to the number of RBs of the subband to which the SRS region belongs.

[0079] 502. The network device sends the first DCI to the terminal device.

[0080] The first DCI includes subband indication information, and the subband indication information is used to indicate the target subband for the terminal device to send the second SRS. The first DCI sent by the network device can be a common DCI or a DCI dedicated to the terminal device.

[0081] In some embodiments, the terminal device uses all RBs of the target subband to send the second SRS to improve the accuracy of detection. In other embodiments, the terminal device uses some RBs of the target subband to send the second SRS to improve the power spectral density of the second SRS.

[0082] Optionally, before the network device sends the first DCI to the terminal device, the network device determines the target subband from the N subsets according to the received power of the first SRS. The network device determines the target subband from the N subbands according to the received power of the first SRS in the N subbands respectively. In some embodiments, when the target subband is one of the N subbands, the received power of the first SRS in the target subband is the highest received power of the first SRS on the N subbands. In other embodiments, when the target subband is M of the N subbands, the received power of the first SRS in the target subband exceeds the power threshold, and the power threshold can be adjusted according to the actual situation, and is not specifically limited.

[0083] 503. The network device receives the second SRS sent by the terminal device on the target subband.

[0084] The network device receives the second SRS, and further probes the target subband according to the second SRS to improve the accuracy of the probing. The second SRS is the SRS sent by the terminal device on the target subband.

[0085] Figure 6 The flowchart of a method for transmitting a sounding reference signal provided by an embodiment of the present application is as Figure 6 shown. This method is a method for the terminal device to transmit a sounding reference signal. The terminal device sends an SRS to the network device on the SRS region of N identically sized configured subbands within the SRS bandwidth. However, in practical applications, it is found that since the size of the SRS bandwidth is not a multiple of the configured subbands, there are cases where the subbands are not configured subbands, and such subbands are non-configured subbands. For example, the first subband or the last subband of the SRS bandwidth.

[0086] As Figure 6 shown in the method, a solution is proposed in which the terminal device sends a first SRS on the first subband and / or the second subband included in the SRS bandwidth, and sends the first SRS to the network device. Among them, the first subband is a configured subband, and the second subband is a non-configured subband to solve the problem that there are non-configured subbands in the SRS bandwidth. This method may include:

[0087] 601. The terminal device sends a first SRS to the network device on the SRS regions of N subbands of the sounding reference signal SRS bandwidth.

[0088] It should be noted that N is an integer greater than 1. The N subbands are the first subband and / or the second subband. The number of RB configurations of the subband is M, and M is greater than 0. The SRS region is indicated by the network device at the starting configuration position of the subband, for example, indicated by a set of SRS resources triggered by the second DCI. The number of RB configurations of the subband can be indicated by the network device or can be a predefined number in a communication protocol specification. The number of RBs of the first subband is M, and the number of RBs of the second subband is less than M. The first subband is a configured subband of the SRS bandwidth, and the second subband is a non-configured subband of the SRS bandwidth.

[0089] Each of the N subbands includes an SRS region. The SRS region consists of at least one RB. The number of RBs of an SRS region is less than or equal to the number of RBs of the subband to which the SRS region belongs. Each SRS region is continuous in the frequency domain and includes a preset number of RBs. The preset number is less than or equal to the number of RBs included in the subband and can be adjusted according to actual situations, and no specific limitation is made. Reducing the number of RBs used to send the first SRS on the subband is beneficial to improving the power spectral density of the first SRS.

[0090] In an alternative manner, when the N subbands include the first subband, the terminal device determines the starting position of the SRS region of the first subband as the starting configured position. The terminal device determines the SRS region of the first subband by determining the starting position of the SRS region in the subband. After determining the SRS region of the first subband, the terminal device sends a first SRS to the network device on the SRS region of the first subband.

[0091] In an alternative manner, when the N subbands include the second subband, in some implementations, the terminal device determines not to send the first SRS on the second subband; in other embodiments, the terminal device uses the position of the first RB available for sending SRS in the second subband as the starting position of the SRS region of the second subband. The terminal device determines the starting position of the SRS region in the subband to determine the SRS region of the subband.

[0092] In the first SRS as Figure 4 shown, the number of RB configurations in the subband is 4. The number of RBs in subband 2 and subband 3 is the number of RB configurations. The SRS region includes 2 RBs, and the starting configured position of the SRS region in the subband is 2. The terminal device uses the second RB and the third RB in subband 2 and subband 3 to send the first SRS. The number of RBs in subband 1 and subband 4 is less than the number of RB configurations, and the terminal device does not send the first SRS on subband 1. The starting position of the SRS region of subband 4 is the first RB position available for sending SRS. The first RB position available for sending SRS in subband 4 is 1, so the SRS region of subband 4 is the first RB and the second RB. The terminal device sends the first SRS through the first RB and the second RB of subband 4.

[0093] Figure 7 The flowchart of a sounding reference signal transmission method provided by an embodiment of the present application is as Figure 7 shown. This method is for the network device to perform sounding reference signal transmission. The method may include:

[0094] 701. The network device receives the first SRS.

[0095] The first SRS is sent by the terminal device on the SRS region included in the N subbands of the SRS bandwidth, where N>1; the N subbands are the first subband and / or the second subband, the number of RBs in the first subband is M, and the number of RBs in the second subband is less than M; each subband in the N subbands includes an SRS region, and the number of resource blocks RB in the SRS region is less than or equal to the number of RBs in the subband to which the SRS region belongs.

[0096] In an alternative implementation, when N bandwidths include a second sub-band, the first SRS is transmitted by the terminal device on L SRS regions of N sub-bands in the SRS bandwidth. L is less than or equal to N. In this implementation, the terminal device does not transmit the first SRS on the second sub-band, or the terminal device determines that the starting position of the SRS region of the second sub-band is the first RB position available for transmitting SRS, so as to determine the SRS region of the second sub-band and transmit the first SRS on the SRS region of the second sub-band. When the terminal device transmits the first SRS on the second sub-band of N sub-bands, L is equal to N; when the terminal device does not transmit the second SRS on the second sub-band of N sub-bands, L is less than N.

[0097] Figure 8 The flowchart of a sounding reference signal transmission method provided by an embodiment of this application is as Figure 8 shown, which illustrates the interaction process between the network device and the terminal device. Figure 8 It is a further refinement and improvement of the methods in Figure 2 、 Figure 5 、 Figure 6 and Figure 7 . The method may include:

[0098] 801. The network device sends SRS configuration information and a second DCI to the terminal device.

[0099] It should be noted that after the network device sends the SRS configuration information to the terminal device, it then sends the second DCI to the network device. The second DCI is used to trigger a set of SRS resources in the SRS configuration information. The set of SRS resources triggered by the second DCI is used for the terminal device to transmit the first SRS.

[0100] A set of SRS resources includes a frequency domain position (freqDomainPosition), and / or a frequency domain shift (freqDomainShift). Optionally, a set of SRS resources further includes a cyclic shift, and / or transmission comb-related parameters, and / or OFDM symbol parameters, and / or SRS sequence ID and other SRS parameters. The cyclic shift parameter includes candidate positions of the cyclic shift of the SRS within the RB. Optionally, in the embodiments of this application, the SRS resources further include information on the starting configuration position (local starting PRB index) of the SRS region in the sub-band.

[0101] 802. The terminal device uses the SRS resources triggered by the second DCI to send the first sounding reference signal SRS to the network device on the SRS regions of N sub-bands in the SRS bandwidth.

[0102] The SRS bandwidth is the uplink system bandwidth, or a part of the bandwidth (bandwidth part, BWP) of the user equipment (UE), or the bandwidth allocated to the UE. The N sub-bands of the SRS bandwidth are N frequency bands obtained by dividing the SRS bandwidth in the frequency domain.

[0103] It should be noted that N is an integer greater than 1. Each of the N sub-bands includes an SRS region. The SRS region consists of at least one RB. The number of RBs in an SRS region is less than or equal to the number of RBs in the sub-band to which the SRS region belongs. Each SRS region is continuous in the frequency domain and includes a preset number of RBs. The preset number is less than or equal to the number of RBs included in the sub-band and can be adjusted according to the actual situation, and no specific limitation is made. Reducing the RB data for transmitting the first SRS on the sub-band is beneficial to improving the power spectral density of the first SRS.

[0104] In an optional manner, the number of RB configurations of the sub-bands of the SRS bandwidth is M, and M is greater than 0. The N sub-bands of the SRS bandwidth include a first sub-band and a second sub-band. When the number of RBs in the first sub-band is M, the terminal device determines the starting position of the SRS region of the first sub-band as the starting configuration position. When the number of RBs in the second sub-band is less than M, in some implementations, the terminal device determines not to transmit the first SRS on the second sub-band; in other embodiments, the terminal device uses the position of the first available RB for transmitting SRS in the second sub-band as the starting position of the SRS region of the second sub-band. The terminal device determines the starting position of the SRS region in the sub-band to determine the SRS region of the sub-band. Since in the current scheme of distributed transmission of sounding reference signals, when the number of RBs in the sub-band is less than the RB configuration data of the sub-band, this sub-band is a non-configured sub-band. For example, the first sub-band or the last sub-band of the SRS bandwidth is a non-configured sub-band, and no solution has been proposed on how the terminal device transmits SRS on the non-configured sub-band. In this implementation manner, the problem of how the terminal device transmits SRS on the non-configured sub-band is solved in two ways.

[0105] 803. The network device sends a first DCI to the terminal device.

[0106] The first DCI includes sub-band indication information, and the sub-band indication information is used to indicate the terminal device to transmit a second SRS on the target sub-band. Optionally, the first DCI is further used to indicate the SRS resources used by the terminal device to transmit the second SRS.

[0107] In an alternative implementation, the SRS resource used by the terminal device to transmit the second SRS is the SRS resource information used by the terminal device to transmit the first SRS, including cyclic shift, and / or transmission comb-related parameters, and / or OFDM symbol parameters, and / or SRS sequence ID and other SRS parameters. Optionally, it further includes frequency domain position (freqDomainPosition), and / or frequency domain offset (freqDomainShift). After receiving the first DCI, the terminal acquires the SRS resource triggered by the second DCI.

[0108] Optionally, before the network device transmits the first DCI, the network device determines a target subband from N subbands according to the received power of the first SRS. The network device determines the target subband from N subbands according to the received power of the first SRS in each of the N subbands. In some embodiments, when the target subband is one of the N subbands, the received power of the first SRS in the target subband is the highest received power of the first SRS on the N subbands. In other embodiments, when the target subband is M of the N subbands, the received power of the first SRS in the target subband exceeds a power threshold, and the power threshold can be adjusted according to the actual situation, and no specific limitation is made.

[0109] 804. The terminal device obtains subband indication information from the first DCI.

[0110] The subband indication information is used to indicate the target subband among the N subbands. When the first DCI is a DCI exclusive to the terminal device, the subband indication information includes the position coding of the target subband on the SRS bandwidth. The position coding of the target subband is used to indicate the terminal device to determine the target subband from the N subbands.

[0111] When the first DCI is common downlink control information, the subband indication information can be a subband position information or multiple subband position information, and each subband position information includes at least one position coding. When the subband indication information includes multiple subband position information, the format of the subband indication information is [position / subband position information 0, position / subband position information 1,..., position / subband position information N], where one of the multiple subband position information including the target subband position information is the subband position information of the terminal device, and the terminal device determines the target subband information from the multiple subband position information according to the position indication information, and the position indication information is used to indicate the position of the target subband position information in the subband indication information; when the subband indication information includes one subband position information, the format of the subband indication information is [position / subband position information]. The subband position information is used to indicate the position coding of the target subband.

[0112] When the first DCI is common downlink control information and the subband indication information includes a subband position information, the subband position information is used to indicate the position coding of the target subbands of multiple terminal devices. The terminal device determines the position coding of the target subband of the terminal device according to the subband position information and the SRS resource triggered by the second DCI. In some embodiments, if N is less than or equal to the number M of RB configurations of the subband, the position coding of the target subband is the result obtained by performing a modulo operation on the sum of the position coding included in the subband position information and the starting configuration position, and N. In other embodiments, if N is greater than M, the position coding of the target subband is the result obtained by performing a modulo operation on the sum of the position coding included in the subband position information, the starting position coding, and the first modulo result, and N. The first modulo result is obtained by performing a modulo operation on the candidate position and the difference between N and M.

[0113] When the first DCI is common downlink control information, the subband indication information includes at least two subband position information, and the target subband position information included in the at least two subband position information, the terminal device obtains the target subband position information from the subband indication information according to the position indication information, and uses the position coding included in the target subband position information as the position coding of the target subband. Among them, the position indication information is indicated by the network device. In some embodiments, the position indication information is included in the SRS configuration information; in other embodiments, the position indication information is included in other configuration information, and before the network device sends the first DCI to the terminal device, the network device sends the position indication information to the terminal device.

[0114] 805. The terminal device sends a second SRS to the network device on the target subband.

[0115] Optionally, the terminal device sends a second SRS to the network device on the target subband according to the SRS resource triggered by the second DCI. Specifically, the terminal device obtains the cyclic shift, and / or transmission comb related parameters, and / or OFDM symbol parameters, and / or SRS sequence ID and other SRS parameters in the SRS resource. Optionally, it also includes the frequency domain position (freqDomainPosition), and / or the frequency domain offset (freqDomainShift). And sends a second SRS to the network device through the obtained SRS parameters. The terminal device can use all RBs of the target subband or use some RBs of the target subband to send the second SRS to further detect the target subband through the second SRS.

[0116] In the embodiments of the present application, the terminal device obtains the subband indication information from the first downlink control information, and thus sends an SRS to the network device on the target subband indicated by the subband indication information.

[0117] Figure 9A terminal device provided by an embodiment of the present application, such as Figure 9 shown, the terminal device may include:

[0118] A sending unit 901, configured to send a first sounding reference signal SRS to a network device on the SRS regions of N sub-bands of the SRS bandwidth; N is greater than 1; each of the N sub-bands includes an SRS region, and the number of resource blocks RB of the SRS region is less than or equal to the number of RBs of the sub-band to which the SRS region belongs;

[0119] A receiving unit 902, configured to receive a first downlink control information DCI;

[0120] An obtaining unit 903, configured to obtain sub-band indication information from the first DCI, where the sub-band indication information is used to indicate a target sub-band among the N sub-bands;

[0121] The sending unit 901 is further configured to send a second SRS to the network device on the target sub-band.

[0122] In an optional implementation manner, the receiving unit 902 is further configured to receive SRS configuration information and a second DCI, where the second DCI is used to trigger a set of SRS resources in the SRS configuration information and indicate that the terminal device uses the SRS resources to send the first SRS.

[0123] In an optional implementation manner, the sending unit 901 is specifically configured to use the SRS resources triggered by the second DCI to send a second SRS to the network device on the target sub-band.

[0124] In an optional implementation manner, the terminal device further includes a determining unit 904, configured to determine a position encoding of the target sub-band on the SRS bandwidth according to the sub-band indication information and the SRS resources, where the position encoding of the target sub-band is used to indicate the target sub-band among the N sub-bands.

[0125] In an optional implementation manner, the sub-band indication information includes a sub-band position information; the SRS resources include a starting configuration position of the SRS region in the sub-band; the determining unit 904 is specifically configured to perform a modulo operation on the sum of the position encoding included in the sub-band position information and the starting configuration position, and N, to obtain the position of the target sub-band.

[0126] In an optional implementation manner, the sub-band indication information includes a sub-band position information; the SRS resources further include candidate positions of cyclic shift; the number of RB configurations of the sub-bands in the SRS bandwidth is M; the determining unit 904 is specifically configured to: perform a modulo operation on the candidate position and the difference between N and M to obtain a first modulo result; perform a modulo operation on the sum of the position encoding included in the sub-band position information, the starting configuration position, and the first modulo result, and N, to obtain the position encoding of the target sub-band.

[0127] In an optional implementation, the sub-band indication information includes at least two sub-band position information, and the receiving unit 902 is further configured to receive position indication information, where the position indication information is used to indicate the target sub-band position information among the at least two sub-band position information; the position coding included in the target sub-band position information is the position coding of the target sub-band on the SRS bandwidth, and the position coding of the target sub-band is used to indicate the target sub-band among the N sub-bands.

[0128] In an optional implementation, the number of RB configurations of the sub-bands of the SRS bandwidth is M; the SRS resource includes the starting configuration position of the sub-SRS area in the sub-band; the sending unit 901 is specifically configured to: when the number of RBs of the first sub-band among the N sub-bands is M, determine that the starting position of the SRS area of the first sub-band is the starting configuration position, where the first sub-band is any one of the N sub-bands; and send the first SRS to the network device on the SRS area of the first sub-band.

[0129] In an optional implementation, the number of RB configurations of the sub-bands of the SRS bandwidth is M; the sending unit 901 is specifically configured to: when the number of RBs of the second sub-band among the N sub-bands is less than M, determine not to send the first SRS on the second sub-band; or determine that the starting position of the SRS area of the second sub-band is the position of the first available RB for sending SRS in the second sub-band, where the second sub-band is any one of the N sub-bands, and send the first SRS to the network device on the SRS area of the second sub-band.

[0130] Figure 10 A network device provided by an embodiment of the present application, as Figure 10 shown, the network device may include:

[0131] A receiving unit 1001, configured to receive a first SRS sent by a terminal device, where the first SRS is sent by the terminal device on the SRS area included in N sub-bands of the SRS bandwidth, and N is greater than 1; each sub-band among the N sub-bands includes an SRS area, and the number of resource blocks RB of the SRS area is less than or equal to the number of RBs of the sub-band to which the SRS area belongs;

[0132] A sending unit 1002, configured to send a first DCI to the terminal device, where the first DCI includes sub-band indication information, and the sub-band indication information is used to indicate the target sub-band for the terminal device to send a second SRS;

[0133] The receiving unit 1001 is further configured to receive the second SRS sent by the terminal device on the target sub-band.

[0134] In an alternative implementation, the sending unit 1002 is further configured to send SRS configuration information and a second DCI to the terminal device, where the second DCI is used to trigger a set of SRS resources in the SRS configuration information and indicate that the terminal device uses the SRS resources to send a first SRS.

[0135] In an alternative implementation, the first DCI is further configured to instruct the terminal device to send a second SRS to the network device by using the SRS resources triggered by the second DCI.

[0136] In an alternative implementation, the subband indication information includes a subband position information; the SRS resources include a starting configuration position of the SRS region in the subband; the position encoding of the target subband is the result of taking the modulo operation of the sum of the position encoding included in the subband position information and the starting configuration position with N; the position encoding of the target subband is used to indicate the target subband among N subbands.

[0137] In an alternative implementation, the subband indication information includes a subband position information; the SRS resources include a starting configuration position of the SRS region in the subband and candidate positions of cyclic shift; the number of RB configurations of the subband in the SRS bandwidth is M; the position encoding of the target subband is the result of taking the modulo operation of the sum of the position encoding included in the subband position information, the starting configuration position and a first modulo result with N; the first modulo result is obtained by taking the modulo operation of the candidate position with the difference between N and M.

[0138] In an alternative implementation, the subband indication information includes at least two subband position information; the sending unit 1002 is further configured to send position indication information to the terminal device; the position indication information is used to determine target subband position information from at least two subband position information; the position encoding included in the target subband position information is the position encoding of the target subband; the position encoding of the target subband is used to indicate the target subband among N subbands.

[0139] In an alternative implementation, the network device further includes: a determining unit 1003, configured to determine a target subband among N subbands according to the received power of the first SRS.

[0140] Figure 11 A terminal device provided for an embodiment of this application, such as Figure 11 shown, the terminal device may include:

[0141] A transmitting unit 1101 transmits a first SRS to a network device on an SRS region of N sub-bands of an SRS bandwidth, where N is greater than or equal to 1; the number of RB configurations of the sub-bands of the SRS bandwidth is M; the N sub-bands are a first sub-band and / or a second sub-band, the number of RBs of the first sub-band is M, and the number of RBs of the second sub-band is less than M; each of the N sub-bands includes an SRS region, and the number of resource blocks RB of the SRS region is less than or equal to the number of RBs of the sub-band to which the SRS region belongs.

[0142] In an optional implementation manner, the transmitting unit 1101 is specifically configured to: when the N sub-bands include the first sub-band, the terminal device determines the starting position of the SRS region of the first sub-band as the starting configuration position; and the terminal device transmits the first SRS to the network device on the SRS region of the first sub-band among the N sub-bands.

[0143] In an optional implementation manner, the transmitting unit 1101 is specifically configured to: when the N sub-bands include the second sub-band, the terminal device determines not to transmit the first SRS on the second sub-band; or, the terminal device determines the starting position of the SRS region of the second sub-band as the position of the first RB available for transmitting the SRS in the second sub-band, and transmits the first SRS to the network device on the SRS region of the second sub-band among the N sub-bands.

[0144] Figure 12 A network device provided in an embodiment of this application, as Figure 12 shown, the network device may include:

[0145] A receiving unit 1201 is configured to receive the first SRS, where the first SRS is transmitted by a terminal device on an SRS region included in N sub-bands of an SRS bandwidth, N is greater than or equal to 1; the N sub-bands are a first sub-band and / or a second sub-band, the number of RBs of the first sub-band is M, and the number of RBs of the second sub-band is less than M; each of the N sub-bands includes an SRS region, and the number of resource blocks RB of the SRS region is less than or equal to the number of RBs of the sub-band to which the SRS region belongs.

[0146] It should be understood that the division of each module of the above terminal device and network device is only a division of logical functions. In actual implementation, it can be fully or partially integrated into a physical entity, or physically separated. For example, each of the above modules can be a separately established processing element, or can be implemented in the same chip. In addition, it can also be stored in the storage element of the controller in the form of program code, and the functions of each of the above modules are called and executed by a certain processing element of the processor. In addition, each module can be integrated together or independently implemented. Here, the processing element can be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules can be completed by the integrated logic circuit in the hardware of the processor element or the instructions in the form of software. The processing element can be a general-purpose processor, such as a central processing unit (abbreviation: CPU in English), or can also be one or more integrated circuits configured to implement the above method, such as: one or more application-specific integrated circuits (abbreviation: ASIC in English), or, one or more digital signal processors (abbreviation: DSP in English), or, one or more field-programmable gate arrays (abbreviation: FPGA in English), etc.

[0147] Next, another network device provided by the embodiments of the present application will be introduced. Please refer to Figure 13 As shown, the network device 1300 includes:

[0148] A receiver 1301, a transmitter 1302, a processor 1303, and a memory 1304 (where the number of processors 1303 in the network device 1300 can be one or more, Figure 13 Taking one processor as an example). In some embodiments of the present application, the receiver 1301, the transmitter 1302, the processor 1303, and the memory 1304 can be connected by a bus or other means. Among them, Figure 10 Taking connection by bus as an example.

[0149] The memory 1304 may include a read-only memory and a random access memory, and provide instructions and data to the processor 1303. A part of the memory 1304 may also include a non-volatile random access memory (NVRAM). The memory 1304 stores an operating system and operation instructions, executable modules or data structures, or subsets thereof, or extended sets thereof, wherein the operation instructions may include various operation instructions for implementing various operations. The operating system may include various system programs for implementing various basic services and processing hardware-based tasks.

[0150] The processor 1303 controls the operation of the network device, and the processor 1303 may also be referred to as a central processing unit (CPU). In a specific application, each component of the network device is coupled together through a bus system, where the bus system may include, in addition to a data bus, a power bus, a control bus, a status signal bus, etc. However, for the sake of clear illustration, all kinds of buses are referred to as the bus system in the figure.

[0151] The method disclosed in the embodiments of the present application above can be applied to the processor 1303 or implemented by the processor 1303. The processor 1303 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit in the hardware of the processor 1303 or instructions in the form of software. The above-mentioned processor 1303 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. It can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. This storage medium is located in the memory 1304, and the processor 1303 reads the information in the memory 1304 and combines its hardware to complete the steps of the above method.

[0152] The receiver 1301 can be used to receive input digital or character information, and generate signal inputs related to the relevant settings and function controls of the network device. The transmitter 1302 can include display devices such as a display screen, and the transmitter 1302 can be used to output digital or character information through an external interface.

[0153] In the embodiments of the present application, the processor 1303 is used to execute the sounding reference signal transmission method performed on the network device side as described above.

[0154] Next, another terminal device provided by the embodiments of the present application will be introduced. Please refer to Figure 14 As shown, the terminal device 1400 includes:

[0155] A receiver 1401, a transmitter 1402, a processor 1403, and a memory 1404 (where the number of processors 1403 in the terminal device 1400 can be one or more, Figure 14 and one processor is taken as an example here). In some embodiments of the present application, the receiver 1401, the transmitter 1402, the processor 1403, and the memory 1404 can be connected through a bus or other means. Among them, Figure 14 taking the connection through the bus as an example.

[0156] The memory 1404 can include a read-only memory and a random access memory, and provide instructions and data to the processor 1403. A part of the memory 1404 can also include NVRAM. The memory 1404 stores an operating system and operating instructions, executable modules, or data structures, or subsets thereof, or extended sets thereof. Among them, the operating instructions can include various operating instructions for implementing various operations. The operating system can include various system programs for implementing various basic services and processing hardware-based tasks.

[0157] The processor 1403 controls the operation of the terminal device, and the processor 1403 can also be called a CPU. In a specific application, the various components of the terminal device are coupled together through a bus system. Among them, the bus system can include a power bus, a control bus, and a status signal bus in addition to the data bus. However, for the sake of clear illustration, all kinds of buses are called the bus system in the figure.

[0158] The method disclosed in the embodiments of the present application can be applied to or implemented by the processor 1403. The processor 1403 can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by the integrated logic circuit in hardware or instructions in software form in the processor 1403. The above-mentioned processor 1403 can be a general-purpose processor, DSP, ASIC, FPGA or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. It can implement or execute each method, step and logic block diagram disclosed in the embodiments of the present application. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as being executed and completed by the hardware decoding processor, or executed and completed by a combination of the hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the art such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register, etc. This storage medium is located in the memory 1404, and the processor 1403 reads the information in the memory 1404 and combines its hardware to complete the steps of the above method.

[0159] In the embodiments of the present application, the processor 1403 is used to execute the detection signal detection method performed on the terminal device side as described above.

[0160] In an embodiment of the present application, a computer-readable storage medium is provided. The above computer storage medium stores one or more instructions, and when the one or more instructions are executed by a processor, the detection signal detection method of the embodiments of the present application is implemented.

[0161] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for transmitting a sounding reference signal, characterized in that, Comprising: Transmitting a first sounding reference signal SRS on the SRS regions of N sub-bands of the sounding reference signal SRS bandwidth; wherein N>1; Each of the N sub-bands includes one of the SRS regions, and the number of resource blocks RB of the SRS region is less than or equal to the number of RBs of the sub-band to which the SRS region belongs; The number of RB configurations of the sub-bands of the SRS bandwidth is M; The transmitting the first sounding reference signal SRS on the SRS regions included in the N sub-bands of the SRS bandwidth includes: When the number of RBs of the second sub-band among the N sub-bands is less than M, determining not to transmit the first SRS on the second sub-band; Or, When the number of RBs of the second sub-band among the N sub-bands is less than M, determining the starting position of the SRS region of the second sub-band as the position of the first RB available for transmitting SRS in the second sub-band, and transmitting the first SRS on the SRS region of the second sub-band.

2. A method for transmitting a sounding reference signal, characterized in that, Comprising: Receiving a first SRS, where the first SRS is transmitted on the SRS regions included in N sub-bands of the SRS bandwidth, and N>1; Each of the N sub-bands includes one of the SRS regions, the number of resource blocks RB of the SRS region is less than or equal to the number of RBs of the sub-band to which the SRS region belongs, the number of RB configurations of the sub-bands of the SRS bandwidth is M, the number of RBs of the second sub-band among the N sub-bands is less than M, and the starting position of the SRS region of the second sub-band is the position of the first RB available for transmitting SRS in the second sub-band.

3. A terminal device, characterized in that, Comprising: A transmitting unit, configured to transmit a first sounding reference signal SRS to a network device on the SRS regions of N sub-bands of the sounding reference signal SRS bandwidth; wherein N>1; Each of the N sub-bands includes one of the SRS regions, the number of resource blocks RB of the SRS region is less than or equal to the number of RBs of the sub-band to which the SRS region belongs, and the number of RB configurations of the sub-bands of the SRS bandwidth is M; The transmitting unit is specifically configured to, when the number of RBs of the second sub-band among the N sub-bands is less than M, determine not to transmit the first SRS on the second sub-band; Or, The transmitting unit is specifically configured to, when the number of RBs of the second sub-band among the N sub-bands is less than M, determine the starting position of the SRS region of the second sub-band as the position of the first RB available for transmitting SRS in the second sub-band, and transmit the first SRS on the SRS region of the second sub-band.

4. A network device, characterized in that, Comprising: A receiving unit, configured to receive a first sounding reference signal (SRS) sent by a terminal device, where the first SRS is sent by the terminal device on an SRS region included in N sub-bands of an SRS bandwidth, and N is greater than 1; each of the N sub-bands includes one such SRS region, the number of resource blocks (RBs) of the SRS region is less than or equal to the number of RBs of the sub-band to which the SRS region belongs, the number of configured RBs of the sub-bands of the SRS bandwidth is M, the number of RBs of a second sub-band among the N sub-bands is less than M, and the starting position of the SRS region of the second sub-band is the position of the first RB available for sending the SRS in the second sub-band.

5. A terminal device, comprising a receiver and a transmitter, characterized in that, Further included are: a processor, adapted to implement one or more instructions; and a computer storage medium storing one or more instructions, the one or more instructions being adapted to be loaded and executed by the processor to perform the sounding reference signal transmission method according to claim 1.

6. A network device, comprising a receiver and a transmitter, characterized in that, Further included are: a processor, adapted to implement one or more instructions; and a computer storage medium storing one or more instructions, the one or more instructions being adapted to be loaded and executed by the processor to perform the sounding reference signal transmission method according to claim 2.

7. A computer storage medium, characterized in that, The computer storage medium stores one or more instructions, the one or more instructions being adapted to be loaded and executed by the processor to perform the sounding reference signal transmission method according to any one of claims 1 to 2.

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