WO2020221335A1 - 一种信号传输方法及装置 - Google Patents

一种信号传输方法及装置 Download PDF

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Publication number
WO2020221335A1
WO2020221335A1 PCT/CN2020/088032 CN2020088032W WO2020221335A1 WO 2020221335 A1 WO2020221335 A1 WO 2020221335A1 CN 2020088032 W CN2020088032 W CN 2020088032W WO 2020221335 A1 WO2020221335 A1 WO 2020221335A1
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WIPO (PCT)
Prior art keywords
srs
configuration information
terminal device
symbol
parameter
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PCT/CN2020/088032
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English (en)
French (fr)
Inventor
许子杰
窦圣跃
杨育波
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华为技术有限公司
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Publication of WO2020221335A1 publication Critical patent/WO2020221335A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

Definitions

  • This application relates to the field of wireless transmission, and in particular to a signal transmission method and device.
  • the wireless channel has frequency selective fading characteristics, which severely reduces the transmission performance of the uplink.
  • the base station estimates the uplink channel quality of different frequency bands through sounding reference signals (SRS) sent by the terminal equipment.
  • SRS sounding reference signals
  • the scheduler on the base station side can allocate the resource block (Resource Block, RB) with good instantaneous channel state to the physical uplink shared channel (PUSCH) of the terminal device according to the detected channel state information (Channel State Information, CSI). ) Transmission to obtain frequency selective gain to ensure uplink performance.
  • RB resource block
  • PUSCH physical uplink shared channel
  • CSI Channel State Information
  • the terminal device when the terminal device transmits the SRS, it can transmit the SRS in a frequency hopping manner. At present, the terminal equipment will switch antennas at the same time every time it hops to transmit SRS. Therefore, the terminal equipment needs to switch antennas frequently. For example, as shown in Figure 1, when the SRS transmission count n SRS is equal to 0, the terminal equipment’s The antenna Tx0 transmits SRS on one carrier frequency. When n SRS is equal to 1, it needs to hop to another carrier frequency to continue transmitting SRS.
  • the embodiments of the present application provide a signal transmission method and device to solve the problem of low transmission efficiency of SRS caused by frequent antenna switching during the transmission of SRS in the prior art.
  • an embodiment of the present application provides a signal transmission method, the method includes: a terminal device obtains first configuration information and second configuration information; the first configuration information is used to indicate the frequency hopping bandwidth configuration of the SRS; The second configuration information is used to indicate the terminal device-level SRS bandwidth configuration; when the terminal device determines to transmit the first SRS by frequency hopping according to the first configuration information and the second configuration information, in the process of transmitting the first SRS In this step, the antenna that transmits the first SRS is switched every time when the entire cell-level SRS bandwidth is detected once using frequency hopping.
  • the terminal device After the terminal device obtains the first configuration information used to indicate the frequency hopping bandwidth configuration of the SRS and the second configuration information used to indicate the SRS bandwidth, the terminal device determines according to the first configuration information and the second configuration information When the first SRS is transmitted by frequency hopping, in the process of transmitting the first SRS, the first SRS is only switched once after the entire bandwidth allocated to the terminal device has been frequency hopped and transmitted. The antenna, thus reducing the number of terminal equipment switching antennas.
  • the switching of the antenna that transmits the first SRS once every time the frequency hop is transmitted in the entire bandwidth allocated to the terminal device includes: every time the frequency hops in the entire bandwidth allocated to the terminal device X*R SRS symbols are transmitted, and the antenna that transmits the first SRS is switched at one time; X is the minimum number of SRS symbols required when the first SRS is used to complete the detection of the entire cell-level SRS bandwidth through frequency hopping ; R is the SRS symbol repetition factor.
  • the method further includes: the terminal device obtains third configuration information and fourth configuration information; the third configuration information is used to indicate the number of sounding reference signal SRS symbols transmitted in one subframe The fourth configuration information is used to indicate the SRS symbol repetition factor; the terminal device determines the first parameter according to the third configuration information and the fourth configuration information; the first SRS symbol for the first SRS The terminal device determines the antenna port index of the l th SRS symbol according to the first parameter; l is a natural number.
  • the method further includes: for the first SRS symbol, the terminal device transmits the first SRS symbol through a first antenna; and the first antenna is the first antenna.
  • the antenna corresponding to the antenna port index of one SRS symbol.
  • the method further includes: the terminal device receives first indication information from the network device; the first indication information is used to indicate whether the first parameter is continuously counted; When the first indication information indicates that the first parameter is continuously counted, when the terminal device transmits the first SRS in the first subframe, the terminal device determines according to the third configuration information and the fourth configuration information
  • the first parameter includes:
  • the terminal device determines the first parameter according to the following formula:
  • n SRS_AS is the first parameter
  • ⁇ is a parameter determined according to the antenna mode currently used by the terminal device
  • R represents the fourth configuration information
  • l represents the sequence number of the first SRS symbol of the first SRS in the first SRS
  • ⁇ represents the value of the first parameter when the terminal device sends the last symbol of the second SRS in the second subframe
  • the second subframe is the value of the terminal device The last subframe sent before the first subframe is sent.
  • the terminal device determining the first parameter according to the third configuration information and the fourth configuration information includes:
  • the terminal device determines the first parameter according to the following formula:
  • n SRS_AS is the first parameter
  • ⁇ is a parameter determined according to the antenna mode currently used by the terminal device
  • R represents the fourth configuration information
  • l represents the sequence number of the first SRS symbol of the first SRS in the first SRS
  • Is the third configuration information Represents the round-down operation.
  • the method further includes: the terminal device receives a sixth parameter; the sixth parameter is used to indicate the antenna mode supported by the terminal device; if the sixth parameter indicates The antenna mode is 1T4R, and when the terminal device transmits the first SRS in a frequency hopping manner, for the first symbol of the first SRS, the antenna index of the first symbol is determined according to the following method :
  • a(n SRS_AS ) represents the antenna index of the first symbol
  • n SRS_AS is the fifth parameter
  • K is obtained from the first configuration information and the second configuration information, K is a positive integer
  • ⁇ is default value
  • the first symbol of the first SRS is determined according to the following method
  • a(n SRS_AS ) represents the antenna index of the first symbol
  • n SRS_AS is the fifth parameter.
  • the method further includes: if the antenna mode indicated by the sixth parameter is 2T4R, and when the terminal device transmits the first SRS in a frequency hopping manner, target the For the first symbol of the first SRS, the antenna index of the first symbol is determined according to the following manner:
  • a(n SRS_AS ) represents the antenna index of the 1st symbol
  • ⁇ represents the number of antenna pairs used by the terminal device to transmit the first SRS
  • n SRS_AS is the fifth parameter
  • K is the frequency domain division The number of copies of is obtained from the first configuration information and the second configuration information
  • K is a positive integer
  • ⁇ is a preset value
  • the first symbol of the first SRS is determined according to the following method
  • a(n SRS_AS ) represents the antenna index of the first symbol
  • n SRS_AS is the fifth parameter
  • ⁇ represents the number of antenna pairs used by the terminal device to transmit the first SRS.
  • the antenna index of the l th symbol is determined according to the following method:
  • a(n SRS_AS ) represents the antenna index of the 1st symbol; n SRS_AS is the fifth parameter; K is obtained from the first configuration information and the second configuration information, K is a positive integer; ⁇ is default value;
  • the first symbol of the first SRS is determined according to the following method
  • a(n SRS_AS ) represents the antenna index of the first symbol
  • n SRS_AS is the fifth parameter.
  • the method further includes: the terminal device acquires a seventh parameter, where the seventh parameter is used to indicate that in a subframe, each of the protection symbols of all SRS symbols included in the first SRS The number of interval GP symbols, the position of each GP symbol, and the length of each GP symbol; or, the terminal device obtains an eighth parameter, where the eighth parameter is a bitmap, and each bit in the bitmap A symbol located in a subframe uniquely corresponds; when the value of a bit in the bitmap is the first value, it means that the symbol corresponding to the bit is an SRS symbol.
  • the method further includes: when the value of a bit in the bitmap is the second value, it means that the symbol corresponding to the bit is a GP symbol; or, the bitmap When the value of one bit in is the second value, it means that the symbol corresponding to this bit is not an SRS symbol.
  • the method further includes: the terminal device receives a transmission power control TPC from the network device; when the first SRS is a traditional SRS, the terminal device determines according to the TPC The transmission power of the first SRS; or, when the first SRS is an additional SRS, the terminal device determines the transmission power of the first SRS according to the TPC; or, when the first SRS is a traditional When an SRS or an additional SRS is added, the terminal device determines the transmission power of the first SRS according to the TPC; the terminal device uses the transmission power to transmit the first SRS.
  • TPC transmission power control
  • the method further includes: the terminal device determines the second SRS to be transmitted; if the first SRS symbol in the first SRS is different from the second SRS symbol in the second SRS Adjacent, only the first SRS or only the second SRS is sent; when the first SRS is a traditional SRS, the second SRS is an additional SRS; or, when the first SRS is When the SRS is added, the second SRS is a traditional SRS.
  • an embodiment of the present application provides a signal transmission method.
  • the method includes: a network device sends a first parameter and a second parameter to a terminal device; the first parameter is used to indicate the hop of a specific SRS of the terminal device. Frequency bandwidth configuration; the second parameter is used to indicate the specific parameter of the terminal device; the network device receives the first SRS from the terminal device; the terminal device according to the first parameter and the second parameter
  • the antenna that transmits the first SRS is switched every time the frequency hopping is used to complete a detection of the entire cell-level SRS bandwidth.
  • the method includes:
  • the network device sends a transmission power control TPC to the terminal device; the TPC is used to indicate that: between the first SRS and the second SRS to be sent by the terminal device, at least one guard interval GP symbol is included; When the first SRS is a traditional SRS, the second SRS is an additional SRS; or, when the first SRS is an additional SRS, the second SRS is a traditional SRS.
  • the method further includes:
  • the network device sends a transmission power control TPC to the terminal device; the TPC is used to indicate: when the first SRS symbol of the first SRS and the third SRS symbol in the third SRS to be sent by the terminal device When adjacent, the bandwidth when the terminal device transmits the first SRS and the third SRS is the same; when the first SRS is a traditional SRS, the third SRS is an additional SRS; or, when the When the first SRS is an additional SRS, the third SRS is a traditional SRS.
  • an embodiment of the present application provides a signal transmission method.
  • the method includes: a terminal device acquires first configuration information, second configuration information, fifth configuration information, and fourth configuration information of a first SRS, wherein the The first configuration information and the second configuration information are used to determine the configuration information of the first SRS to perform frequency hopping, the fifth configuration information is used to determine the configuration information of the first SRS to perform antenna switching, and the fourth configuration The information is used to indicate the configuration information of the time domain symbol occupied by the first SRS; the terminal device according to the first configuration information, the second configuration information, the fifth configuration information, and the fourth configuration information, When it is determined to send the first SRS, the SRS frequency hopping is completed first, and then the SRS antenna switching is performed.
  • the method further includes: the terminal device obtains third configuration information and eighth configuration information; the third configuration information is used to indicate that the time domain symbols occupied by the first SRS are normal The subframe includes at least one other OFDM symbol except the last OFDM symbol; the eighth configuration information is used to indicate the cell where the terminal device sends the first SRS; the first configuration information is used to indicate the SRS Frequency hopping bandwidth configuration, the second configuration information is used to indicate the terminal device-level SRS bandwidth configuration; when the first configuration information is less than the second configuration information, the terminal device transmits the first SRS Frequency hopping; when the fifth configuration information indicates that the terminal device enables antenna switching, the terminal device performs antenna switching when sending the first SRS.
  • the method further includes: the fourth configuration information is used to indicate the number of repetitions R to be repeated when the terminal device sends the SRS; and the terminal device, according to the first configuration information, For the second configuration information, the third configuration information, the fourth configuration information, and the fifth configuration information, when it is determined that the first SRS is sent, the SRS repetition is completed first, then the SRS frequency hopping is completed, and the SRS is finally performed Antenna switching.
  • the method further includes: the terminal device determines a first parameter according to the third configuration information and the fourth configuration information; the terminal device determines according to the first parameter
  • the antenna port index of the antenna used to transmit the SRS on the l-th SRS symbol, and l is a natural number.
  • the method further includes: the terminal device receives first indication information from the network device; the first indication information is used to indicate whether the first parameter is continuously counted; When the first indication information indicates that the first parameter is continuously counted, when the terminal device transmits the first SRS in the first subframe, the terminal device according to the third configuration information and the fourth configuration Information, determine the first parameter, including:
  • the terminal device determines the first parameter according to the following formula:
  • n SRS_AS is the first parameter
  • ⁇ is a parameter determined according to the antenna mode currently used by the terminal device
  • R indicates the number of repetitions performed when the terminal device transmits SRS
  • l indicates that the first SRS symbol of the first SRS is in the first
  • the serial number in SRS Is the total number of OFDM symbols occupied by SRS transmission in a normal subframe
  • ⁇ represents the value of the first parameter when the terminal device sends the last symbol of the second SRS in the second subframe
  • the second subframe is the value of the terminal device The last subframe sent before the first subframe is sent.
  • the terminal device determine the first parameter, including:
  • the terminal device determines the first parameter according to the following formula:
  • n SRS_AS is the first parameter
  • ⁇ is a parameter determined according to the antenna mode currently used by the terminal device
  • R indicates the number of repetitions performed when the terminal device transmits SRS
  • l indicates that the first SRS symbol of the first SRS is in the first
  • the serial number in SRS Is the total number of OFDM symbols occupied by SRS transmission in a normal subframe, Represents the round-down operation.
  • the method further includes: the terminal device calculates the first parameter according to the first frequency hopping number in the following manner:
  • n SRS_AS is the first parameter
  • R represents the number of repetitions performed when the terminal device sends the SRS
  • l represents the sequence number of the first SRS symbol of the first SRS in the first SRS
  • n hop represents the first frequency hopping number, Represents a round-down operation
  • the terminal device determines the antenna port index of the antenna used to transmit the SRS on the lth SRS symbol according to the first parameter
  • l is a natural number.
  • the method further includes: the terminal device obtains the first frequency hopping number n hop in the following manner:
  • n hop is the number of first frequency hopping
  • m SRS b represents the first SRS terminal equipment-level bandwidth
  • b 0,1,2,3
  • B SRS ⁇ ⁇ 0,1,2,3 ⁇ Represents the second SRS terminal equipment-level bandwidth
  • b may be configured by the high-level parameters of the network device, optionally, b may also be expressed as b hop and configured by high-level RRC signaling.
  • the method further includes: the terminal device receives the first frequency hopping number n hop from the network device.
  • the method further includes: the terminal device determines the first hop according to the third configuration information, the fourth configuration information, and the fifth configuration information in the following manner Frequency: the first frequency hopping frequency or among them with Represents rounding up and down respectively. Is the third configuration information; R is the fourth configuration information.
  • the method further includes: the terminal device calculates the first parameter according to the first frequency hopping number in the following manner:
  • n SRS_AS is the first parameter
  • R represents the number of repetitions performed when the terminal device sends the SRS
  • l represents the sequence number of the first SRS symbol of the first SRS in the first SRS
  • n hop represents the first frequency hopping number, with Respectively represent rounding up and down operations
  • the terminal device determines the antenna port index of the antenna used to transmit the SRS on the lth SRS symbol according to the first parameter
  • l is a natural number.
  • the method further includes: the terminal device obtains fifth configuration information; the fifth configuration information is used to indicate the antenna mode supported by the terminal device; if the fifth configuration is The antenna mode indicated by the information is 1T4R, and when the terminal device uses frequency hopping to transmit the first SRS, for the first symbol of the first SRS, the first symbol is determined according to the following method Index of antenna port:
  • the first symbol of the first SRS is determined according to the following method
  • the first symbol of the first SRS is determined according to the following method
  • ⁇ represents the number of antenna pairs used by the terminal device to transmit the first SRS.
  • the method further includes: the terminal device obtains fifth configuration information; the fifth configuration information is used to indicate the antenna mode supported by the terminal device; if the fifth configuration is The antenna mode indicated by the information is 1T4R, and when the terminal device uses frequency hopping to transmit the first SRS, for the first symbol of the first SRS, the first symbol is determined according to the following method Index of antenna port:
  • a(n SRS_AS ) represents the antenna port index of the l th symbol
  • n SRS_AS is the first parameter
  • K is the number of shares divided in the frequency domain, obtained from the first configuration information and the second configuration information , K is a positive integer
  • ⁇ is the preset value
  • the antenna mode indicated by the fifth configuration information is 1T4R
  • the terminal device does not use frequency hopping to transmit the SRS, for the first symbol of the first SRS, according to the following method Determine the antenna port index of the l th symbol:
  • a(n SRS_AS ) represents the antenna port index of the l th symbol
  • n SRS_AS is the first parameter
  • the method further includes: if the antenna mode indicated by the fifth configuration information is 2T4R, and when the terminal device transmits the first SRS in a frequency hopping manner, For the first symbol of the first SRS, the antenna port index of the first symbol is determined according to the following manner:
  • n SRS_AS represents the antenna port index of the 1st symbol
  • ⁇ represents the number of antenna pairs used by the terminal device to transmit the first SRS
  • n SRS_AS is the first parameter
  • K is the frequency domain The number of shares divided is obtained from the first configuration information and the second configuration information, K is a positive integer
  • ⁇ is a preset value
  • the antenna mode indicated by the fifth configuration information is 2T4R
  • the terminal device does not use frequency hopping to transmit the SRS, for the first symbol of the first SRS, according to the following method Determine the antenna port index of the l th symbol:
  • a(n SRS_AS ) represents the antenna port index of the first symbol
  • n SRS_AS is the first parameter
  • ⁇ represents the number of antenna pairs used by the terminal device to transmit the first SRS.
  • the method further includes: if the antenna mode indicated by the fifth configuration information is 1T2R, and when the terminal device transmits the first SRS in a frequency hopping manner, For the first symbol of the first SRS, the antenna port index of the first symbol is determined according to the following manner:
  • a(n SRS_AS ) represents the antenna port index of the 1st symbol;
  • n SRS_AS is the first parameter;
  • K is the number of shares divided in the frequency domain, obtained from the first configuration information and the second configuration information , K is a positive integer;
  • ⁇ is the preset value;
  • the antenna mode indicated by the fifth configuration information is 1T2R
  • the terminal device does not use frequency hopping to transmit the SRS, for the first symbol of the first SRS, according to the following method Determine the antenna port index of the l th symbol:
  • a(n SRS_AS ) represents the antenna port index of the l th symbol
  • n SRS_AS is the first parameter
  • the method further includes:
  • the terminal device obtains sixth configuration information, where the sixth configuration information is used to indicate the number of GP symbols in each guard interval, the position of each GP symbol, and the position of each GP symbol in all SRS symbols included in the first SRS in one subframe.
  • the value of a bit in the bitmap is the first value, it means that the symbol corresponding to the bit is an SRS symbol.
  • the method further includes: the terminal device receives a transmission power control TPC from the network device; when the first SRS is a traditional SRS, the terminal device determines according to the TPC The transmission power of the first SRS; or, when the first SRS is an additional SRS, the terminal device determines the transmission power of the first SRS according to the TPC; or, when the first SRS is a traditional When an SRS or an additional SRS is added, the terminal device determines the transmission power of the first SRS according to the TPC; the terminal device uses the transmission power to transmit the first SRS.
  • TPC transmission power control
  • an embodiment of the present application provides a signal transmission method, including: a network device sends first configuration information and second configuration information to a terminal device; the first configuration information is used to indicate the frequency hopping bandwidth configuration of the SRS; The second configuration information is used to indicate the terminal device-level SRS bandwidth configuration; the network device receives the first SRS from the terminal device; the terminal device performs frequency hopping transmission according to the first configuration information and the second configuration information In the first SRS, each time the entire cell-level SRS bandwidth is probed once using frequency hopping, the antenna that transmits the first SRS is switched.
  • the method includes:
  • the network device sends a transmission power control TPC to the terminal device; the TPC is used to indicate that: between the first SRS and the second SRS to be sent by the terminal device, at least one guard interval GP symbol is included; When the first SRS is a traditional SRS, the second SRS is an additional SRS; or, when the first SRS is an additional SRS, the second SRS is a traditional SRS.
  • the method further includes:
  • the network device sends a transmission power control TPC to the terminal device; the TPC is used to indicate: when the first SRS symbol of the first SRS and the third SRS symbol in the third SRS to be sent by the terminal device When adjacent, the bandwidth when the terminal device transmits the first SRS and the third SRS is the same; when the first SRS is a traditional SRS, the third SRS is an additional SRS; or, when the When the first SRS is an additional SRS, the third SRS is a traditional SRS.
  • an embodiment of the present application provides a signal transmission method, including:
  • the terminal obtains first information, where the first information is used to indicate SRS antenna switching;
  • the terminal performs SRS antenna switching according to the first information
  • the SRS antenna switching satisfies:
  • a(n SRS ) represents the antenna port index of the antenna used to transmit SRS on the lth SRS symbol
  • R represents the number of repetitions performed when the terminal device sends the SRS
  • l represents the sequence number of the first SRS symbol of the first SRS in the first SRS
  • b can be configured to the terminal by the network device.
  • b can also be expressed as b hop , which is configured to the terminal by the network device.
  • the network device sends b or b hop to the terminal through RRC signaling.
  • ⁇ represents the number of antenna pairs used by the terminal device to transmit the SRS.
  • the value of ⁇ can be 2 or 3.
  • the corresponding number of antenna pairs is ⁇ 2a(n SRS ), 2a(n SRS )+1 ⁇
  • the antenna mode of the terminal device can be configured by the network device.
  • the network device configures the antenna mode of the terminal device as 1T2R, 1T4R, or 2T4R through high-level RRC signaling.
  • an embodiment of the present application provides a signal transmission method, including:
  • the network device sends first information to the terminal device, where the first information is used to instruct the terminal device to perform SRS antenna switching.
  • the SRS antenna switching satisfies:
  • this application provides a device.
  • the device has the function of realizing the terminal device involved in the first aspect, the third aspect, or the fifth aspect.
  • the device includes the terminal device executing the steps involved in the first aspect, the third aspect, or the fifth aspect.
  • Corresponding modules or units or means (means), the functions or units or means (means) can be realized by software, or by hardware, or by hardware executing corresponding software.
  • the device includes a processing unit and a transceiving unit.
  • the functions performed by the processing unit and the transceiving unit may correspond to the steps performed by the terminal device involved in the first aspect, the third aspect, or the fifth aspect.
  • the device includes a processor, and may also include a transceiver.
  • the transceiver is used to send and receive signals, and the processor executes program instructions to implement the first aspect or the third aspect or the fifth aspect.
  • the method executed by the terminal device in any possible design or implementation in the aspect.
  • the apparatus may further include one or more memories, and the memories are used for coupling with the processor.
  • the one or more memories may be integrated with the processor, or may be provided separately from the processor, which is not limited in this application.
  • the memory stores necessary computer program instructions and/or data for realizing the functions of the terminal device involved in the first aspect, the third aspect, or the fifth aspect.
  • the processor can execute the computer program instructions stored in the memory to complete the method executed by the terminal device in any possible design or implementation of the first aspect, the third aspect, or the fifth aspect.
  • this application provides a device.
  • the device has the function of implementing the network equipment involved in the second aspect, the fourth aspect, or the sixth aspect.
  • the device includes the network device that performs the steps involved in the second aspect, the fourth aspect, or the sixth aspect.
  • Corresponding modules or units or means (means).
  • the functions or units or means can be implemented by software, or by hardware, or by hardware executing corresponding software.
  • the device includes a processing unit and a transceiving unit.
  • the functions performed by the processing unit and the transceiving unit may be the same as those involved in any possible design or implementation of the second aspect, the fourth aspect, or the sixth aspect. Corresponding to the steps performed by the network device.
  • the communication device includes a processor, and may also include a transceiver.
  • the transceiver is used to send and receive signals, and the processor executes program instructions to complete the second or fourth aspect or The method executed by the network device in any possible design or implementation in the sixth aspect.
  • the apparatus may further include one or more memories, and the memories are used for coupling with the processor.
  • the one or more memories may be integrated with the processor, or may be provided separately from the processor, which is not limited in this application.
  • the memory stores the necessary computer program instructions and/or data to implement the functions of the network device involved in any possible design or implementation manner of the second aspect, the fourth aspect, or the sixth aspect.
  • the processor can execute the computer program instructions stored in the memory to complete the method executed by the network device in any possible design or implementation of the second aspect, the fourth aspect, or the sixth aspect.
  • the embodiment of the present application provides a computer-readable storage medium that stores computer-readable instructions.
  • the computer can execute any of the above-mentioned possible designs.
  • the computer may be the aforementioned terminal device or network device.
  • the embodiments of the present application provide a computer program product.
  • the computer When a computer reads and executes the computer program product, the computer is caused to execute any of the above-mentioned possible design methods.
  • the embodiment of the present application provides a chip, which is connected to a memory, and is used to read and execute a software program stored in the memory, so as to implement any of the above-mentioned possible design methods.
  • An embodiment of the present application provides a communication system, including any of the foregoing possible terminal devices and any of the foregoing possible network devices.
  • FIG. 1 is a schematic diagram of using frequency hopping to transmit SRS and perform antenna switching in the prior art
  • FIG. 2 is a schematic diagram of a communication system of a method for transmitting SRS according to an embodiment of the application
  • FIG. 3 is a schematic flowchart of a signal transmission method provided by an embodiment of this application.
  • FIG. 4 is a bitmap corresponding to the SRS transmission method provided by the embodiment of the application.
  • FIG. 5 is a schematic diagram of the terminal device transmitting SRS according to an embodiment of the application.
  • Figure 6 is a schematic diagram of frequency hopping transmission of SRS
  • FIG. 7 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 9 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 10 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • the embodiments of this application can be applied to the new radio (NR) system, the global system of mobile communication (GSM) system, the code division multiple access (CDMA) system, and the broadband code division multiple access ( Other communication systems such as wideband code division multiple access (WCDMA) systems, long term evolution (LTE) systems, advanced long term evolution (LTE-A) systems, etc., are specifically not restricted here.
  • NR new radio
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • LTE long term evolution
  • LTE-A advanced long term evolution
  • FIG. 2 shows a schematic diagram of a communication system suitable for the antenna switching method according to an embodiment of the present application.
  • the network device estimates the uplink channel quality of different frequency bands through the SRS sent by the terminal device.
  • a network device is an entity on the network side that is used to transmit or receive signals, and SRS parameters can be configured for the terminal device.
  • the terminal device is an entity on the user side for receiving or transmitting signals, and can send SRS to the network device.
  • the terminal device may be a device with a wireless transceiver function or a chip that can be installed in any device, and may also be referred to as user equipment (UE), access terminal, user unit, or user station. , Mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent or user device.
  • UE user equipment
  • Mobile station mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent or user device.
  • the terminal equipment in the embodiments of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, an industrial Wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical, wireless terminal in smart grid, transportation safety (transportation safety) Wireless terminals in the smart city (smart city), wireless terminals in the smart home (smart home), etc.
  • the network equipment can be an evolved base station (evolutional node B, eNB) in the LTE system, a global system of mobile communication (GSM) system or a code division multiple access (CDMA) system.
  • the base station (transceiver station, BTS) may also be a base station (nodeB, NB) in a wideband code division multiple access (WCDMA) system.
  • FIG. 3 it is a schematic flowchart of a signal transmission method provided by an embodiment of this application.
  • Step 301 The terminal device reports capability information.
  • Step 302 The network device determines high-level parameters according to the capability information, and sends the high-level parameters to the terminal device.
  • Step 303 The terminal device sends an SRS to the network device according to the high-level parameters.
  • Step 304 The network device receives the SRS from the terminal device, and performs channel estimation according to the SRS.
  • the capability information may include the antenna mode supported by the terminal device, for example, the antenna mode may be '2T4R', '1T4R', '1T2R', and so on.
  • the antenna mode supported by the terminal device can indicate how many antennas of the terminal device can be used to receive signals and how many antennas can be used to transmit signals. For example, when the antenna mode is 2T4R, 2T indicates that the number of antennas used for transmitting signals is 2, and 4R indicates that the number of antennas used for receiving signals is 4, and the other cases are analogized in this order and will not be repeated.
  • the capability information of the terminal device may also include information such as the size of the bandwidth supported by the terminal device, the transmission power of the terminal device, etc., which will not be illustrated one by one here.
  • the high-level parameters configured by the network device may include one or more of the following:
  • the first configuration information is used to indicate the frequency hopping bandwidth configuration b hop of the SRS, and the specific name of the first configuration information is not limited. For example, it may be called the frequency hopping bandwidth of the SRS (srs-HoppingBandwidth).
  • the second configuration information is used to indicate the SRS bandwidth B SRS , and the specific name of the second configuration information is not limited. For example, it may be called the SRS bandwidth (srs-Bandwidth).
  • the third configuration information is used to indicate the number of SRS symbols transmitted in a subframe That is, the time domain symbols occupied by the first SRS are on the normal subframe, including at least one other OFDM symbol except the last OFDM symbol.
  • the specific name of the third configuration information is not limited, for example, it may be called Rel-16 LTE The number of transmitted symbols under the standard (nrofSymbols-r16).
  • the fourth configuration information is used to indicate the SRS symbol repetition factor R, and the specific name of the fourth configuration information is not limited. For example, it may be referred to as a repetition factor (repetition factor-r16) under the Rel-16 LTE standard.
  • the first parameter is used to indicate the antenna port index for the terminal device to transmit the SRS antenna, and the specific name of the first parameter is not limited, for example, it may be called the SRS antenna switching transmission count (n SRS_AS ).
  • the fifth configuration information is used to indicate the antenna mode supported by the terminal device, and the specific name of the fifth configuration information is not limited. For example, it may be referred to as SRS-Antenna-Switching.
  • the sixth configuration information is used to indicate the number of each guard period (GP) symbol, the position of each GP symbol, and the length of each GP symbol in all SRS symbols included in the first SRS in a subframe .
  • Each GP contains Y orthogonal frequency division multiplexing (OFDM) symbols, Y is a positive integer, it should be noted that SRS symbols can refer to OFDM symbols occupied by SRS, and non-SRS symbols can refer to non-SRS OFDM symbols occupied by the signal.
  • OFDM orthogonal frequency division multiplexing
  • the seventh configuration information is used to indicate that the symbol sent in a subframe is an SRS symbol or a GP symbol.
  • the specific name of the seventh configuration information is not limited, for example, it may be called a bitmap.
  • the eighth configuration information is used to indicate the cell-specific parameter C SRS , and the specific name of the eighth configuration information is not limited. For example, it may be called SRS bandwidth configuration (srs-BandwidthConfig).
  • the ninth configuration information is used to indicate the start position of the SRS in the frequency domain, and the specific name of the ninth configuration information is not limited. For example, it may be called a frequency domain position (freqDomainPosition).
  • step 303 the terminal device determines GP, SRS transmission power, whether frequency hopping transmission of SRS is enabled, and the antenna port index for switching according to the received high-level parameters, which will be described in detail below.
  • the terminal device determines the GP:
  • the sixth configuration information in the high-level parameters may indicate the number, location, and length of each GP included in one subframe.
  • the GP contains Y OFDM symbols, Y can be 1 or other positive integers, the GP lengths in frequency hopping or antenna switching can be the same or different, and each OFDM symbol in the Y OFDM symbols can also be called a GP symbol.
  • the network device can determine the number and length of the required GP according to the capability information of the terminal device or the network device itself.
  • the way of instructing the GP through the sixth configuration information is a display mode.
  • parameters such as the third configuration information and the fourth configuration information can also be independently included in high-level parameters to respectively indicate the terminal device.
  • the number, location, and length of each GP can also be indicated implicitly.
  • a bitmap (bitmap) can also be configured through high-level parameters, the third configuration information, the fourth configuration information, and the sixth configuration information are included in a unified manner, and the GP of the terminal device is jointly indicated through the bitmap.
  • the horizontal axis 1 is the sequence number of the SRS symbol in the subframe.
  • a bit of '1' indicates that there is an SRS symbol at this position; a bit of '0' indicates that there is no SRS symbol at this position, and there is a GP symbol at this position.
  • the third configuration information indicates the total number of bits in the bitmap
  • the fourth configuration information indicates the number of bits in the bitmap whose bits are consecutively '1'
  • the sixth configuration information indicates the bits whose bits in the bitmap are '0' Number and location of bits.
  • the terminal device transmits SRS symbols according to the bitmap, and these GP symbols are not included when calculating the SRS transmission count n SRS . It can be seen from Figure 4 that the bits corresponding to the 0, 1, 3, 4, 6, and 7 symbol positions are '1', so there are SRS symbols at these symbol positions; the 2, 5, 8-12 symbol positions correspond to bits For '0', there is no SRS symbol in these symbol positions, but all have GP symbols.
  • the terminal equipment determines the SRS transmission power:
  • the existing Rel-15 LTE standard supports SRS transmission in uplink normal subframes or special subframes.
  • the SRS transmitted in the normal subframe is located on the last OFDM symbol; the SRS transmitted in the special subframe is located on the OFDM symbol contained in the UpPTS.
  • UpPTS can be configured with up to 6 OFDM symbols in a special subframe and used for SRS transmission.
  • Rel-16 LTE introduces new SRS symbols to meet the SRS transmission of multiple symbols in normal subframes.
  • the SRS of Rel-15 LTE is called legacy SRS (legacy SRS), and the SRS introduced by Rel-16 is called additional SRS (additional SRS).
  • legacy SRS legacy SRS
  • additional SRS additional SRS
  • the standard agrees that the first 1 to 13 OFDM symbols of a normal subframe can be used to transmit additional SRS, and the OFDM symbols occupied by additional SRS in the first 1 to 13 OFDM symbols are additional SRS symbols, and the last symbol in the normal subframe It can be used to transmit legacy SRS, and the last OFDM symbol occupied by legacy SRS in a normal subframe is an additional SRS symbol.
  • the legacy SRS is distributed on the last OFDM symbol, and the legacy SRS intervals of different combs are alternately distributed; the additional SRS is distributed on the 1st to 13th OFDM symbols and can occupy one or more OFDM symbols.
  • aperiodic SRS transmission is triggered by downlink control information (DCI) of a physical downlink control channel (physical downlink control channel, PDCCH).
  • DCI downlink control information
  • the time domain, frequency domain, and code domain SRS parameters of trigger type 0 and trigger type 1 are all semi-statically configured by high-level RRC signaling.
  • the legacy SRS of Rel-15 supports periodic transmission and aperiodic transmission.
  • the addition SRS of Rel-16 according to the discussion results of the 3GPP RAN1#94, #94bis, #95 and #96 meetings, it has been agreed to support aperiodic SRS transmission in subframes.
  • the standard already supports that the same terminal device can support both legacy SRS and additional SRS transmission.
  • the frequency domain resources of SRS are determined by three elements: SRS bandwidth, transmission comb offset and frequency domain start position. After these three elements are determined, the resources occupied by the frequency domain of SRS can be determined.
  • the first step is to determine the SRS bandwidth m SRS,b , that is, how many RBs each SRS occupies in the frequency domain.
  • m SRS,0 corresponding to B SRS is referred to as broadband SRS signal bandwidth.
  • the second step is to determine the transmission comb offset
  • Transmission comb offset When different UEs transmit SRS on the same subframe and the same RB set, they use different transmission comb offsets to distinguish them.
  • the third step is to determine the starting position of the frequency domain From the first step, the number of RBs occupied by the SRS signal bandwidth is m SRS,b , and each RB contains Subcarriers, the available SRS signal bandwidth occupies Combine the start position of the wideband SRS signal in the frequency domain And the narrowband SRS signal frequency domain position index n b , giving the starting subcarrier position on the narrowband SRS signal frequency domain is:
  • the first item Indicates the location of the first subcarrier available for SRS transmission on the frequency band, or the location of the starting subcarrier of the broadband SRS.
  • Upstream bandwidth Broadband SRS bandwidth m SRS, 0 and SRS comb decided together. For normal subframes.
  • n b is related to the frequency domain position parameter n RRC ⁇ 0,1,...,23 ⁇ configured by the higher layer, that is, each smallest SRS subband corresponds to a frequency domain position index n b , which corresponds to a value of n RRC .
  • the frequency domain resources of Rel-15 NR SRS are determined by three elements: SRS bandwidth, transmission comb offset and frequency domain start position. After these three elements are determined, the resources occupied by the frequency domain of SRS can be determined.
  • the first step is to determine the SRS bandwidth m SRS,b , that is, how many RBs each SRS occupies in the frequency domain.
  • the second step is to determine the transmission comb offset
  • the high-level parameter transmissionCombNum configures the number of transmission combs K TC ⁇ ⁇ 2,4 ⁇ .
  • Transmission comb offset When different UEs transmit SRS on the same subframe and the same RB set, they use different transmission comb offsets to distinguish them.
  • the third step is to determine the starting position of the frequency domain
  • formula obtain Indicates the position of the first subcarrier available for SRS transmission on the frequency band, From the frequency domain shift value n shift , the number of transmission combs K TC and the transmission comb offset decided together. Indicates the length of the SRS signal sequence (that is, how many subcarriers it occupies).
  • n b represents the frequency domain position index.
  • the terminal device can also determine the power at which the terminal device transmits SRS.
  • the network device instructs the terminal device to transmit the power of the SRS through the transmission power control (transmit power control, TPC) in the downlink control information (DCI).
  • TPC transmission power control
  • DCI downlink control information
  • the SRS transmitted by the terminal equipment includes two types: legacy SRS and additional SRS.
  • TPC since the additional SRS can be triggered separately through the DCI format of Rel-15, or together with the traditional SRS, the TPC issues will be discussed one by one below.
  • TPC is carried in DCI, and the usage of TPC is summarized in Table 6.
  • TPC in DCI TPC usage Authorize in the uplink PUSCH Authorize in the downlink PUCCH The format is 3/3A in DCI PUCCH and PUSCH
  • the format is 3B in DCI SRS
  • the TPC value is used for power control, but if triggered, it can also be used for additional SRS. There are two situations:
  • the TPC value in the corresponding DCI is applicable to both the additional SRS and PUSCH.
  • the power control of the additional SRS can be reused (Equation 1).
  • the simple method is to apply a TPC value to the additional SRS and PUSCH.
  • Additional SRS can be used (Equation 1), while traditional SRS follows power control coupled with PUSCH.
  • the TPC value can be used for PUCCH and additional SRS.
  • the power control formula is used to attach SRS.
  • the additional SRS when the additional SRS is triggered, regardless of the DCI format, the TPC value in the DCI is applicable to the additional SRS. And the power control formula of the SRS in the 3B format without the DCI of the PUSCH/PUCCH can be reused.
  • the power indicated by the TPC in the DCI is the power at which the terminal device transmits the legacy SRS.
  • the TPC indicates the additional SRS transmission power control. If DCI only triggers legacy SRS, TPC indicates the transmission power control of legacy SRS.
  • a DCI is supported to trigger both legacy SRS and additional SRS transmission.
  • one of the following three methods should be used:
  • the first type if a DCI triggers both the legacy SRS and the additional SRS, the TPC in the DCI is used to calculate the transmission power of the legacy SRS and the additional SRS at the same time. In this way, the agreement of the original agreement is not changed, the continuity of the agreement can be maintained, and the system compatibility can be improved.
  • the second type If a DCI triggers both legacy SRS and additional SRS, the TPC in the DCI is only used for legacy SRS power calculation.
  • the third type If a DCI triggers both legacy SRS and additional SRS, the TPC in the DCI is only used for the power calculation of the additional SRS.
  • the Rel-16 LTE standard For the Rel-16 LTE standard, it supports simultaneous transmission of legacy SRS and additional SRS in one subframe. However, due to different parameters such as bandwidth, the transmission power of legacy SRS and additional SRS are often different. Now that the first 13 OFDM symbols that support normal subframes can be used to transmit additional SRS, when additional SRS and legacy SRS are directly adjacent to each other in the time domain, power jumps will occur due to the difference in power between the two, which will cause After the additional SRS is sent, the legacy SRS that is directly adjacent in the transmission time domain is distorted. Therefore, the embodiments of the present application design the following three solutions to avoid this problem, and the network device selects any one of the following solutions to execute:
  • the first type does not trigger the transmission of additional SRS and legacy SRS that are directly adjacent to the network equipment and terminal equipment in the time domain. If the two are directly adjacent to each other in the time domain, the terminal device will not send the triggered legacy SRS or the triggered additional SRS.
  • the second type when the network device configures the SRS parameters for the terminal device, at least one symbol is added between the additional SRS and the legacy SRS as the GP symbol, for example, one symbol is added as the GP symbol.
  • the third type if the two are directly adjacent to each other in the time domain, the network equipment must configure the SRS parameters to ensure that the bandwidth of the legacy SRS and the additional SRS are the same, so as to ensure that the power of the two SRSs is the same, and no power jump occurs.
  • the terminal device determines whether to enable frequency hopping transmission of SRS:
  • the terminal device determines whether to enable frequency hopping transmission of SRS according to the frequency hopping bandwidth configuration b hop of the SRS indicated by the first configuration information and the SRS bandwidth B SRS indicated by the second configuration information.
  • the terminal device judges the magnitude relationship between b hop and B SRS . If b hop ⁇ B SRS , frequency hopping SRS is enabled; if b hop ⁇ B SRS , frequency hopping SRS is not enabled. It should be noted that regardless of whether frequency hopping transmission of SRS is enabled, the SRS transmission count is among them l is the sequence number of the SRS symbol in a subframe.
  • the first Indicates the position of the first subcarrier that can be used to transmit SRS on the frequency band, or the position of the starting subcarrier of broadband SRS.
  • m SRS b is the number of resource blocks (Resource Block, RB) occupied by the SRS bandwidth
  • RB Resource Block
  • n b is the frequency domain position index of the narrowband SRS, and n b is determined according to the n SRS .
  • the terminal device determines the antenna port index to be switched:
  • the terminal device determines the antenna port index of the antenna after the terminal device performs antenna switching (hereinafter referred to as the first antenna port index) through the first parameter.
  • the first parameter can be expressed as n SRS_AS , and the name of this parameter is not limited. For example, this parameter is called SRS antenna switching transmission count.
  • An optional implementation manner is: according to the difference in the antenna switching mode of the terminal device indicated by the fifth configuration information, the terminal device determines the first antenna port index in a different manner.
  • the fifth configuration information is a parameter indicating the 1T4R mode, and When set to on, select 1T4R mode; when the fifth configuration information is a parameter indicating 2T4R mode and set to on, select 2T4R mode; otherwise, select 1T2R mode.
  • the following takes n SRS_AS as an example to represent the first parameter, and a(n SRS_AS ) as an example to represent the first antenna port index.
  • the specific method for determining the first antenna port index is as follows:
  • the first antenna port index a(n SRS_AS ) is:
  • the first antenna port index is:
  • n SRS_AS is the first parameter
  • K is the number of shares divided in the frequency domain obtained from the first configuration information and the second configuration information, and is a positive integer
  • ⁇ is a parameter that takes 0 or 1, when the SRS signal bandwidth When the second-level bandwidth is divided into two parts and the third-level bandwidth is divided into two parts, ⁇ takes 1; otherwise, it takes 0.
  • the first antenna port index is:
  • the first antenna port index is:
  • n SRS_AS is the first parameter
  • K is the number of shares divided in the frequency domain obtained from the first configuration information and the second configuration information, and is a positive integer
  • ⁇ is a parameter that takes 0 or 1, when the SRS signal bandwidth When the second-level bandwidth is divided into two parts and the third-level bandwidth is divided into two parts, ⁇ takes 1; otherwise, it takes 0.
  • the first antenna port index is:
  • the first antenna port index is:
  • n SRS_AS is the first parameter
  • K is the number of shares divided in the frequency domain obtained from the first configuration information and the second configuration information, and is a positive integer
  • ⁇ is a preset value, for example, ⁇ is a value of 0 Or a parameter of 1.
  • the terminal device obtains fifth configuration information; the fifth configuration information is used to indicate the antenna mode supported by the terminal device; if the antenna mode indicated by the fifth configuration information is 1T4R, and when When the terminal device transmits the SRS in the frequency hopping mode, for the first symbol of the SRS, the antenna port index of the first symbol is determined according to the following method:
  • the antenna port index of the first symbol is determined according to the following method:
  • the antenna port index of the first symbol is determined according to the following method:
  • ⁇ represents the number of antenna pairs used by the terminal device to transmit SRS.
  • transmission comb offset Configure frequency domain position n RRC 0
  • configure frequency hopping bandwidth b hop 0 to satisfy b hop ⁇ B SRS
  • enable frequency hopping, repetition factor R 2
  • SRS frequency hopping and antenna switching are configured at the same time
  • guard interval Y 1
  • FIG. 5 it is a schematic diagram of the terminal device transmitting SRS in the above example, where Tx0 and Tx1 are antennas.
  • the embodiments of the present application provide the following three methods:
  • first indication information is added to radio resource control (radio resource control, RRC) signaling, and the first indication information is used to indicate whether n SRS is continuously counted.
  • RRC radio resource control
  • the first indication information may be carried in RRC signaling or DCI, which will be described separately below.
  • the first indication information is carried in RRC signaling, and the name of the first indication information in RRC signaling is not limited, for example, SRS-InterSubframe-Successive :
  • the terminal device when the first indication information is set to "on", the terminal device is instructed to store the last n SRS value of the non-periodic transmission SRS symbol triggered by the incomplete SRS antenna switching; and, in the next subframe When SRS symbols continue to be transmitted aperiodically, n SRS continues to increase cumulatively on this basis.
  • n SRS will be restored to 0 when the aperiodic SRS transmission is triggered next time.
  • the first indication information is added to the DCI signaling, and the terminal device performs one of the following two actions according to the first indication information:
  • Behavior 1 Instruct the terminal device to store the last n SRS value of the non-periodic transmission SRS symbol triggered by the incomplete SRS antenna switching; when the SRS symbol continues to be transmitted aperiodically in the next subframe, n SRS continues to increase on this basis .
  • the second method is to add second indication information to RRC signaling or DCI signaling.
  • the method includes the following three steps:
  • the first step the network device selects the antenna port set p set in this aperiodic transmission of the SRS symbol according to the capability information reported by the terminal device.
  • Step 2 When the terminal device performs antenna switching for aperiodic transmission of SRS symbols, the antenna port p ⁇ p set is satisfied.
  • the third step by triggering multiple aperiodic transmission of SRS symbols, and each time the SRS symbol is transmitted, a different set of antenna ports is selected to realize the repetition, frequency hopping and antenna switching of all antennas.
  • the third method is to use a multi-shot method, which is triggered once and ends automatically after all OFDM symbols are transmitted. It includes the following two steps:
  • Step 1 The network device configures the number of SRS symbols transmitted by the terminal device.
  • Step 2 The network equipment triggers or activates the terminal equipment to transmit SRS symbols through DCI signaling or media access control (MAC) control element (CE) signaling, and performs repetition, frequency hopping, and antenna switching.
  • MAC media access control
  • CE control element
  • the transmission of the SRS symbol ends.
  • the difference from the semi-static SRS transmission in NR is that there is no need to use MAC CE again to terminate the transmission of SRS symbols.
  • the embodiment of the present application provides a signal transmission method, which can be expressed as:
  • the terminal obtains first information, where the first information is used to indicate SRS antenna switching;
  • the terminal performs SRS antenna switching according to the first information
  • the SRS antenna switching satisfies:
  • a(n SRS ) represents the antenna port index of the antenna used to transmit SRS on the lth SRS symbol
  • R represents the number of repetitions performed when the terminal device sends the SRS
  • l represents the sequence number of the first SRS symbol of the first SRS in the first SRS
  • b can be configured to the terminal by the network device.
  • b can also be expressed as b hop , which is configured to the terminal by the network device.
  • the network device sends b or b hop to the terminal through RRC signaling.
  • ⁇ represents the number of antenna pairs used by the terminal device to transmit the SRS.
  • the value of ⁇ can be 2 or 3.
  • the corresponding number of antenna pairs is ⁇ 2a(n SRS ), 2a(n SRS )+1 ⁇
  • the antenna mode of the terminal device can be configured by the network device.
  • the network device configures the antenna mode of the terminal device as 1T2R, 1T4R, or 2T4R through high-level RRC signaling.
  • the terminal's SRS antenna switching can be understood as the terminal determining the antenna port for sending the SRS.
  • a signal transmission method provided by the embodiment of the present application can be expressed as:
  • the network device sends first information to the terminal device, where the first information is used to instruct the terminal device to perform SRS antenna switching.
  • the SRS antenna switching satisfies:
  • the network device may generate the first information.
  • the network device may receive the SRS based on the antenna port of the terminal indicated by the above formula.
  • this application also provides a terminal device for:
  • the SRS antenna switching satisfies:
  • a(n SRS ) represents the antenna port index of the antenna used to transmit SRS on the lth SRS symbol
  • R represents the number of repetitions performed when the terminal device sends the SRS
  • l represents the sequence number of the first SRS symbol of the first SRS in the first SRS
  • b can be configured to the terminal by the network device.
  • b can also be expressed as b hop , which is configured to the terminal by the network device.
  • the network device sends b or b hop to the terminal through RRC signaling.
  • ⁇ represents the number of antenna pairs used by the terminal device to transmit the SRS.
  • the value of ⁇ can be 2 or 3.
  • the corresponding number of antenna pairs is ⁇ 2a(n SRS ), 2a(n SRS )+1 ⁇
  • the antenna mode of the terminal device can be configured by the network device.
  • the network device configures the antenna mode of the terminal device as 1T2R, 1T4R, or 2T4R through high-level RRC signaling.
  • this application also provides a network device for:
  • the SRS antenna switching satisfies:
  • the communication device 700 includes a transceiver unit 701 and a processing unit 702.
  • the transceiver unit 701 is configured to obtain first configuration information and second configuration information; the first configuration information is used to indicate the frequency hopping bandwidth configuration of the SRS; the second configuration information is used to indicate the sounding reference signal SRS bandwidth;
  • the processing unit 702 is configured to determine, according to the first configuration information and the second configuration information, to transmit the first SRS by frequency hopping, during the process of transmitting the first SRS, every time in the entire bandwidth allocated to the terminal device The frequency hopping transmission of the entire bandwidth is completed once, and the antenna for transmitting the first SRS is switched once.
  • the processing unit 702 is specifically configured to: switch the antenna that transmits the first SRS once every time X*R SRS symbols are frequency-hopped and transmitted in the entire bandwidth allocated to the terminal device; X is When the frequency hopping transmission in the entire bandwidth is allocated to the frequency hopping transmission of the entire bandwidth, the number of symbols for the first frequency hopping transmission; R is the SRS symbol repetition factor.
  • the transceiver unit 701 is further configured to: obtain third configuration information and fourth configuration information; the third configuration information is used to indicate the number of sounding reference signal SRS symbols transmitted in one subframe; The fourth configuration information is used to indicate the SRS symbol repetition factor; the processing unit 702 is further used to: determine a first parameter according to the third configuration information and the fourth configuration information; and the first parameter for the first SRS For l SRS symbols, the antenna port index of the lth SRS symbol is determined according to the first parameter; l is a natural number.
  • the processing unit 702 is further configured to: for the first SRS symbol, transmit the first SRS symbol through a first antenna; the first antenna is the first antenna.
  • the antenna corresponding to the antenna port index of each SRS symbol.
  • the transceiver unit 701 is further configured to: receive first indication information from a network device; the first indication information is used to indicate whether the first parameter is continuously counted; when the first parameter When the indication information indicates that the first parameter is continuously counted, when the first SRS is transmitted in the first subframe, determining the first parameter according to the third configuration information and the fourth configuration information includes: determining the first parameter according to the following formula The first parameter:
  • n SRS_AS is the first parameter
  • ⁇ is a parameter determined according to the antenna mode currently used by the terminal device
  • R represents the fourth configuration information
  • l represents the sequence number of the first SRS symbol of the first SRS in the first SRS
  • ⁇ represents the value of the first parameter when the terminal device sends the last symbol of the second SRS in the second subframe
  • the second subframe is the value of the terminal device The last subframe sent before the first subframe is sent.
  • the processing unit 702 is specifically configured to determine the first parameter according to the following formula:
  • n SRS_AS is the first parameter
  • ⁇ is a parameter determined according to the antenna mode currently used by the terminal device
  • R represents the fourth configuration information
  • l represents the sequence number of the first SRS symbol of the first SRS in the first SRS
  • Is the third configuration information Represents the round-down operation.
  • the transceiver unit 701 is configured to obtain first configuration information, second configuration information, fifth configuration information, and fourth configuration information of the first SRS, wherein the first configuration information and the second configuration information are used to determine The first SRS frequency hopping configuration information, the fifth configuration information is used to determine the first SRS antenna switching configuration information, and the fourth configuration information is used to indicate the configuration of the time domain symbols occupied by the first SRS information;
  • the processing unit 702 is configured to determine, according to the first configuration information, the second configuration information, the fifth configuration information, and the fourth configuration information, that when the first SRS is sent, the SRS frequency hopping is completed first, and then the SRS antenna switching.
  • the transceiver unit 701 is further configured to: obtain third configuration information and eighth configuration information; the third configuration information is used to indicate that the time domain symbol occupied by the first SRS is on a normal subframe , Including at least one other OFDM symbol except the last OFDM symbol; the eighth configuration information is used to indicate the cell where the terminal device sends the first SRS; the first configuration information is used to indicate the frequency hopping of the SRS Bandwidth configuration, where the second configuration information is used to indicate terminal device-level SRS bandwidth configuration; when the first configuration information is less than the second configuration information, the terminal device performs frequency hopping when sending the first SRS; The fifth configuration information indicates that when the terminal device enables antenna switching, the terminal device performs antenna switching when transmitting the first SRS.
  • the fourth configuration information is used to indicate the number of repetitions R for repetition when the terminal device sends SRS; the processing unit 702 is further used to: according to the first configuration information, the The second configuration information, the third configuration information, the fourth configuration information, and the fifth configuration information.
  • the processing unit 702 is further used to: according to the first configuration information, the The second configuration information, the third configuration information, the fourth configuration information, and the fifth configuration information.
  • the processing unit 702 is further configured to: determine a first parameter according to the third configuration information and the fourth configuration information; according to the first parameter, determine the first parameter in the first SRS
  • the antenna port index of the antenna used to transmit SRS on the symbol, and l is a natural number.
  • the transceiver unit 701 is further configured to: receive first indication information from the network device; the first indication information is used to indicate whether the first parameter is continuously counted; when the When the first indication information indicates that the first parameter is continuously counted, when the transceiver unit 701 transmits the first SRS in the first subframe, the processing unit 702 is further configured to:
  • the first parameter is determined according to the following formula:
  • n SRS_AS is the first parameter
  • ⁇ is a parameter determined according to the antenna mode currently used by the terminal device
  • R indicates the number of repetitions performed when the terminal device transmits SRS
  • l indicates that the first SRS symbol of the first SRS is in the first
  • the serial number in SRS Is the total number of OFDM symbols occupied by SRS transmission in a normal subframe
  • ⁇ represents the value of the first parameter when the terminal device sends the last symbol of the second SRS in the second subframe
  • the second subframe is the value of the terminal device The last subframe sent before the first subframe is sent.
  • processing unit 702 is further configured to:
  • the first parameter is determined according to the following formula:
  • n SRS_AS is the first parameter
  • ⁇ is a parameter determined according to the antenna mode currently used by the terminal device
  • R indicates the number of repetitions performed when the terminal device transmits SRS
  • l indicates that the first SRS symbol of the first SRS is in the first
  • the serial number in SRS Is the total number of OFDM symbols occupied by SRS transmission in a normal subframe, Represents the round-down operation.
  • the terminal device obtains the first frequency hopping number n hop in the following manner:
  • n hop is the number of first frequency hopping, m SRS, 0 represents the configured SRS cell-level bandwidth, Indicates the configured SRS terminal equipment-level bandwidth;
  • the terminal device receives the first frequency hopping number n hop from the network device;
  • the terminal device determines the first frequency hopping number according to the third configuration information, the fourth configuration information, and the fifth configuration information in the following manner:
  • the processing unit 702 calculates the first parameter according to the first frequency hopping number in the following manner:
  • n SRS_AS is the first parameter
  • R represents the number of repetitions performed when the terminal device sends the SRS
  • l represents the sequence number of the first SRS symbol of the first SRS in the first SRS
  • n hop represents the first frequency hopping number, Represents the round-down operation
  • the antenna port index of the antenna used for transmitting the SRS on the l-th SRS symbol is determined, and l is a natural number.
  • the processing unit 702 is further configured to: the terminal device obtains the first frequency hopping number n hop in the following manner:
  • n hop is the number of first frequency hopping
  • m SRS b represents the first SRS terminal equipment-level bandwidth
  • b 0,1,2,3
  • B SRS ⁇ ⁇ 0,1,2,3 ⁇ Represents the second SRS terminal equipment-level bandwidth
  • b may be configured by the high-level parameters of the network device, optionally, b may also be expressed as b hop and configured by high-level RRC signaling.
  • the method further includes: the terminal device receives the first frequency hopping number n hop from the network device.
  • the method further includes: the terminal device determines the first hop according to the third configuration information, the fourth configuration information, and the fifth configuration information in the following manner Frequency: the first frequency hopping frequency or among them with Represents rounding up and down respectively. Is the third configuration information; R is the fourth configuration information.
  • the method further includes: the terminal device calculates the first parameter according to the first frequency hopping number in the following manner:
  • n SRS_AS is the first parameter
  • R represents the number of repetitions performed when the terminal device sends the SRS
  • l represents the sequence number of the first SRS symbol of the first SRS in the first SRS
  • n hop represents the first frequency hopping number, with Respectively represent rounding up and down operations
  • the terminal device determines the antenna port index of the antenna used to transmit the SRS on the lth SRS symbol according to the first parameter
  • l is a natural number.
  • processing unit 702 is further configured to:
  • the fifth configuration information is used to indicate the antenna mode supported by the terminal device; if the antenna mode indicated by the fifth configuration information is 1T4R, and when the terminal device adopts a jump
  • the antenna port index of the first symbol is determined according to the following manner:
  • a(n SRS_AS ) represents the antenna port index of the l th symbol
  • n SRS_AS is the first parameter
  • K is the number of shares divided in the frequency domain, obtained from the first configuration information and the second configuration information , K is a positive integer
  • ⁇ is the preset value
  • the antenna mode indicated by the fifth configuration information is 1T4R
  • the terminal device does not use frequency hopping to transmit the SRS, for the first symbol of the first SRS, according to the following method Determine the antenna port index of the l th symbol:
  • a(n SRS_AS ) represents the antenna port index of the l th symbol
  • n SRS_AS is the first parameter
  • processing unit 702 is further configured to:
  • the first symbol of the first SRS is determined according to the following method
  • a(n SRS_AS ) represents the antenna port index of the 1st symbol
  • ⁇ represents the number of antenna pairs used by the terminal device to transmit the first SRS
  • n SRS_AS is the first parameter
  • K is the frequency domain The number of shares divided is obtained from the first configuration information and the second configuration information, K is a positive integer
  • ⁇ is a preset value
  • the antenna mode indicated by the fifth configuration information is 2T4R
  • the terminal device does not use frequency hopping to transmit the SRS, for the first symbol of the first SRS, according to the following method Determine the antenna port index of the l th symbol:
  • a(n SRS_AS ) represents the antenna port index of the first symbol
  • n SRS_AS is the first parameter
  • ⁇ represents the number of antenna pairs used by the terminal device to transmit the first SRS.
  • the processing unit 702 is further configured to: if the antenna mode indicated by the fifth configuration information is 1T2R, and when the terminal device transmits the first SRS in a frequency hopping manner , For the first symbol of the first SRS, determine the antenna port index of the first symbol according to the following manner:
  • a(n SRS_AS ) represents the antenna port index of the 1st symbol;
  • n SRS_AS is the first parameter;
  • K is the number of shares divided in the frequency domain, obtained from the first configuration information and the second configuration information , K is a positive integer;
  • ⁇ is the preset value;
  • the antenna mode indicated by the fifth configuration information is 1T2R
  • the terminal device does not use frequency hopping to transmit the SRS, for the first symbol of the first SRS, according to the following method Determine the antenna port index of the l th symbol:
  • a(n SRS_AS ) represents the antenna port index of the l th symbol
  • n SRS_AS is the first parameter
  • the transceiving unit 701 is further configured to: the terminal device obtains sixth configuration information, where the sixth configuration information is used to indicate that in a subframe, all SRSs included in the first SRS The number of GP symbols in each guard interval in the symbol, the position of each GP symbol, and the length of each GP symbol; or, the terminal device obtains seventh configuration information, where the seventh configuration information is a bitmap, and the bit Each bit in the bitmap uniquely corresponds to a symbol in a subframe; when the value of a bit in the bitmap is the first value, it means that the symbol corresponding to the bit is an SRS symbol.
  • the transceiver unit 701 is further configured to: the terminal device receives the transmission power control TPC from the network device; the processing unit 702 is further configured to: when the first SRS is a traditional In the case of SRS, the transmission power of the first SRS is determined according to the TPC; or, when the first SRS is an additional SRS, the transmission power of the first SRS is determined according to the TPC; or, when the first SRS is When an SRS is a traditional SRS or an additional SRS, the transmission power of the first SRS is determined according to the TPC; the transmission power is used to transmit the first SRS.
  • the terminal device receives the transmission power control TPC from the network device
  • the processing unit 702 is further configured to: when the first SRS is a traditional In the case of SRS, the transmission power of the first SRS is determined according to the TPC; or, when the first SRS is an additional SRS, the transmission power of the first SRS is determined according to the TPC; or, when the first SRS is When an SRS
  • FIG. 8 it is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • the communication device shown in FIG. 8 may be a hardware circuit implementation of the communication device shown in FIG. 7.
  • the communication device can be applied to the flowchart shown in FIG. 3 to perform the functions of the terminal device in the foregoing method embodiment.
  • FIG. 8 only shows the main components of the communication device.
  • the communication device may be a terminal device, or a device in the terminal device, such as a chip or a chip system, where the chip system includes at least one chip, and the chip system may also include other circuit structures and/or Discrete device.
  • the communication device 800 includes a processor 801, a memory 802, a transceiver 803, an antenna 804, and an input and output device 805.
  • the processor 801 is mainly used to process communication protocols and communication data, and to control the entire wireless communication device, execute software programs, and process data of the software programs, for example, to support the wireless communication device to execute the methods described in the above method embodiments Action etc.
  • the memory 802 is mainly used to store software programs and data.
  • the transceiver 803 is mainly used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals.
  • the antenna 804 is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves.
  • the input and output device 805, such as a touch screen, a display screen, a keyboard, etc., is mainly used to receive data input by the user and output data to the user.
  • FIG. 9 it is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • the transceiver unit is configured to send first configuration information and second configuration information to the terminal device; the first configuration information is used to indicate the frequency hopping bandwidth configuration of the SRS; the second configuration information is used to indicate the terminal device-level SRS bandwidth configuration ; Receiving the first SRS from the terminal device; when the terminal device hops to transmit the first SRS according to the first configuration information and the second configuration information, each time the frequency hopping is used, the entire cell-level SRS bandwidth When one detection is completed, the antenna that transmits the first SRS is switched once.
  • the transceiver unit is further configured to: send a transmission power control TPC to the terminal device; the TPC is used to indicate: the first SRS and the second SRS to be transmitted by the terminal device It includes at least one guard interval GP symbol; when the first SRS is a traditional SRS, the second SRS is an additional SRS; or, when the first SRS is an additional SRS, the second SRS is Traditional SRS.
  • the transceiving unit is further configured to: send a transmission power control TPC to the terminal device; the TPC is used to indicate: when the first SRS symbol of the first SRS and the terminal device When the third SRS symbols in the third SRS to be transmitted are adjacent, the bandwidth when the terminal device transmits the first SRS and the third SRS is the same; when the first SRS is a traditional SRS, the The third SRS is an additional SRS; or, when the first SRS is an additional SRS, the third SRS is a traditional SRS.
  • FIG. 10 it is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • the communication device shown in FIG. 10 may be a hardware circuit implementation of the communication device shown in FIG. 9.
  • the communication device can be applied to the flowchart shown in FIG. 3 to perform the functions of the network device in the foregoing method embodiment.
  • FIG. 10 only shows the main components of the communication device.
  • the communication device may be a network device, or a device in the network device, such as a chip or a chip system, where the chip system includes at least one chip, and the chip system may also include other circuit structures and/or Discrete device.
  • the communication device 1000 includes a processor 1001, a memory 1002, a transceiver 1003, an antenna 1004, and the like.
  • the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) containing computer-usable program codes.
  • a computer-usable storage media including but not limited to disk storage, optical storage, etc.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

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Abstract

本申请实施例提供一种信号传输方法及装置，其中方法包括：终端设备获取第一配置信息和第二配置信息；所述第一配置信息用于指示探测参考信号(SRS)的跳频带宽配置；所述第二配置信息用于指示终端设备级SRS带宽配置；所述终端设备根据所述第一配置信息和所述第二配置信息确定跳频传输第一SRS时，在传输所述第一SRS的过程中，每在使用跳频对整个小区级SRS带宽完成一次探测时，切换一次发送所述第一SRS的天线。

Description

一种信号传输方法及装置 技术领域
本申请涉及无线传输领域，尤其涉及一种信号传输方法及装置。
背景技术
无线信道具有频率选择性衰落特性，严重降低上行链路的传输性能。为了确定上行链路的传输性能，基站通过终端设备发送的探测参考信号(sounding reference signal，SRS)来估计不同频段的上行信道质量。基站侧的调度器可以根据探测到的信道状态信息(Channel State Information,CSI)将瞬时信道状态好的资源块(Resource Block，RB)分配给终端设备的物理上行共享信道(Physical Uplink Shared Channel，PUSCH)传输，从而获取频率选择性增益，以保证上行链路性能。
为了降低SRS在传输过程中的干扰，终端设备在传输SRS时，可以采用跳频的方式传输SRS。目前，终端设备每次跳频传输SRS时，都会同时进行天线切换，因此，终端设备需要频繁切换天线，举例来说，如图1所示，当SRS传输计数n SRS等于0时，终端设备的天线Tx0在一个载波频率传输SRS，当n SRS等于1时，需要跳变到另一个载波频率上继续传输SRS。在这个跳频过程中，需要同时将终端设备传输SRS的天线Tx0切换为天线Tx1，那么每次跳频都需要一个用于准备天线切换的时间保护间隔。在n SRS从1再增加到9过程中，终端设备传输SRS的天线还会在Tx0～Tx3间切换，具体过程与Tx0切换到Tx1类似，在此不再赘述。因此，在SRS的传输过程中，由于跳频和天线切换同时进行，用于准备天线切换的时间保护间隔较多，导致SRS的整个传输过程的耗时较久，SRS的传输效率较低，从而SRS整个传输过程满足不了低延时高可靠的要求。
因此，现有技术中，在SRS的传输过程中，天线切换频繁，时间保护间隔较多，导致SRS的整个传输过程的时间较久，SRS的传输效率较低，是一个亟待解决的问题。
发明内容
本申请实施例提供一种信号传输方法及装置，用以解决现有技术中，在SRS的传输过程中，天线切换频繁，导致SRS的传输效率较低的问题。
第一方面，本申请实施例提供一种信号传输方法，该方法包括：终端设备获取第一配置信息和第二配置信息；所述第一配置信息用于指示SRS的跳频带宽配置；所述第二配置信息用于指示终端设备级SRS带宽配置；所述终端设备根据所述第一配置信息和所述第二配置信息确定跳频传输第一SRS时，在传输所述第一SRS的过程中，每在使用跳频对整个小区级SRS带宽完成一次探测时，切换一次发送所述第一SRS的天线。
本申请实施例好，终端设备获取到用于指示SRS的跳频带宽配置的第一配置信息以及用于指示SRS带宽的第二配置信息后，终端设备根据第一配置信息和第二配置信 息确定跳频传输第一SRS时，在传输所述第一SRS的过程中，在分配给所述终端设备的整个带宽中将所述整个带宽跳频传输完后，才切换一次发送所述第一SRS的天线，因此减少了终端设备切换天线的次数。
一种可能的实现方式中，所述每在分配给终端设备的整个带宽中跳频传输一次，切换一次发送所述第一SRS的天线，包括：每在分配给终端设备的整个带宽中跳频传输X*R个SRS符号，切换一次发送所述第一SRS的天线；X为在使用所述第一SRS通过跳频来完成对整个小区级SRS带宽探测时，所需要的最小的SRS符号数；R为SRS符号重复因子。
一种可能的实现方式中，所述方法还包括：所述终端设备获取第三配置信息，第四配置信息；所述第三配置信息用于指示一个子帧内传输的探测参考信号SRS符号数量；所述第四配置信息用于指示SRS符号重复因子；所述终端设备根据所述第三配置信息以及所述第四配置信息确定第一参数；针对所述第一SRS的第l个SRS符号，所述终端设备根据所述第一参数确定所述第l个SRS符号的天线端口索引；l为自然数。
一种可能的实现方式中，所述方法还包括：针对所述第l个SRS符号，所述终端设备通过第一天线，传输所述第l个SRS符号；所述第一天线为所述第l个SRS符号的天线端口索引对应的天线。
一种可能的实现方式中，所述方法还包括：所述终端设备接收来自所述网络设备的第一指示信息；所述第一指示信息用于指示所述第一参数是否连续计数；当所述第一指示信息指示所述第一参数连续计数时，所述终端设备在第一子帧中传输所述第一SRS时，所述终端设备根据所述第三配置信息以及第四配置信息确定第一参数，包括：
所述终端设备根据以下公式确定所述第一参数：
Figure PCTCN2020088032-appb-000001
其中，n SRS_AS为所述第一参数，
Figure PCTCN2020088032-appb-000002
λ为根据所述终端设备当前所使用的天线模式确定的参数，R表示所述第四配置信息，l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，
Figure PCTCN2020088032-appb-000003
为所述第三配置信息，
Figure PCTCN2020088032-appb-000004
表示向下取整运算，Δ表示所述终端设备在第二子帧中发送第二SRS的最后一个符号时，所述第一参数的取值，所述第二子帧为所述终端设备在发送所述第一子帧之前发送的最后一个子帧。
一种可能的实现方式中，所述终端设备根据所述第三配置信息以及第四配置信息确定第一参数，包括：
所述终端设备根据以下公式确定所述第一参数：
Figure PCTCN2020088032-appb-000005
其中，n SRS_AS为所述第一参数，
Figure PCTCN2020088032-appb-000006
λ为根据所述终端设备当前所使用的天线模式确定的参数，R表示所述第四配置信息，l表示所述 第一SRS的第l个SRS符号在所述第一SRS中的序号，
Figure PCTCN2020088032-appb-000007
为所述第三配置信息，
Figure PCTCN2020088032-appb-000008
表示向下取整运算。
一种可能的实现方式中，所述方法还包括：当所述终端设备当前所使用的天线模式为1T4R时，λ＝4；或者，当所述终端设备当前所使用的天线模式为2T4R或1T2R时，λ＝2。
一种可能的实现方式中，所述方法还包括：所述终端设备接收第六参数；所述第六参数用于指示所述终端设备终端设备支持的天线模式；若所述第六参数指示的所述天线模式为1T4R，且当所述终端设备采用跳频方式传输所述第一SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线索引：
Figure PCTCN2020088032-appb-000009
其中，a(n SRS_AS)表示所述第l个符号的天线索引，n SRS_AS为所述第五参数；K为由所述第一配置信息和第二配置信息获得，K为正整数；β为预设值；
或者，若所述第六参数指示的所述天线模式为1T4R，且当所述终端设备不采用跳频方式传输所述SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线索引：
a(n SRS_AS)＝n SRS_AS mod 4
其中，a(n SRS_AS)表示所述第l个符号的天线索引，n SRS_AS为所述第五参数。
一种可能的实现方式中，所述方法还包括：若所述第六参数指示的所述天线模式为2T4R，且当所述终端设备采用跳频方式传输所述第一SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线索引：
Figure PCTCN2020088032-appb-000010
其中，a(n SRS_AS)表示所述第l个符号的天线索引，Λ表示终端设备用于传输所述第一SRS的天线对数，n SRS_AS为所述第五参数；K为频域上分成的份数由所述第一配置信息和第二配置信息获得，K为正整数；β为预设值；
或者，若所述第六参数指示的所述天线模式为2T4R，且当所述终端设备不采用跳频方式传输所述SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线索引：
a(n SRS_AS)＝n SRS_AS modΛ
其中，a(n SRS_AS)表示所述第l个符号的天线索引，n SRS_AS为所述第五参数，Λ表示终端设备用于传输所述第一SRS的天线对数。
一种可能的实现方式中，若所述第六参数指示的所述天线模式为1T2R，且当所述终端设备采用跳频方式传输所述第一SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线索引：
Figure PCTCN2020088032-appb-000011
其中，a(n SRS_AS)表示所述第l个符号的天线索引；n SRS_AS为所述第五参数；K为由所述第一配置信息和第二配置信息获得，K为正整数；β为预设值；
或者，若所述第六参数指示的所述天线模式为1T2R，且当所述终端设备不采用跳频方式传输所述SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线索引：
a(n SRS_AS)＝n SRS_AS mod 2
其中，a(n SRS_AS)表示所述第l个符号的天线索引，n SRS_AS为所述第五参数。
一种可能的实现方式中，所述方法还包括：所述终端设备获取第七参数，所述第七参数用于指示一个子帧内，所述第一SRS包括的所有SRS符号中每个保护间隔GP符号的数量、每个GP符号位置以及每个GP符号的长度；或者，所述终端设备获取第八参数，所述第八参数为比特位图，所述比特位图中的每个比特位于一个子帧中的一个符号唯一对应；所述比特位图中的一个比特的取值为第一取值时，表示该比特对应的符号为SRS符号。
一种可能的实现方式中，所述方法还包括：所述比特位图中的一个比特的取值为第二取值时，表示该比特对应的符号为GP符号；或者，所述比特位图中的一个比特的取值为第二取值时，表示该比特对应的符号不为SRS符号。
一种可能的实现方式中，所述方法还包括：所述终端设备接收来自所述网络设备的传输功率控制TPC；当所述第一SRS为传统SRS时，所述终端设备根据所述TPC确定所述第一SRS的传输功率；或者，当所述第一SRS为附加SRS时，所述终端设备根据所述TPC确定所述第一SRS的传输功率；或者，当所述第一SRS为传统SRS或者附加SRS时，所述终端设备根据所述TPC确定所述第一SRS的传输功率；所述终端设备采用所述传输功率传输所述第一SRS。
一种可能的实现方式中，所述方法还包括：所述终端设备确定待发送的第二SRS；若所述第一SRS中的第一SRS符号与所述第二SRS中的第二SRS符号相邻，则只发送所述第一SRS，或者只发送所述第二SRS；当所述第一SRS为传统SRS时，所述第二SRS为附加SRS；或者，当所述第一SRS为附加SRS时，所述第二SRS为传统SRS。
第二方面，本申请实施例提供一种信号传输方法，该方法包括：网络设备向终端设备发送第一参数和第二参数；所述第一参数用于指示所述终端设备特定的SRS的跳频带宽配置；所述第二参数用于指示所述终端设备的特定参数；所述网络设备接收来自终端设备的第一SRS；在所述终端设备根据所述第一参数和所述第二参数跳频传输所述第一SRS时，每在使用跳频对整个小区级SRS带宽完成一次探测时，切换一次发送所述第一SRS的天线。
一种可能的实现方式中，所述方法包括：
所述网络设备向所述终端设备发送传输功率控制TPC；所述TPC用于指示：所述第一SRS与所述终端设备待发送的第二SRS之间，至少包括一个保护间隔GP符号；当所述第一SRS为传统SRS时，所述第二SRS为附加SRS；或者，当所述第一SRS为附加SRS时，所述第二SRS为传统SRS。
一种可能的实现方式中，所述方法还包括：
所述网络设备向所述终端设备发送传输功率控制TPC；所述TPC用于指示：当所述第一SRS的第一SRS符号与所述终端设备待发送的第三SRS中的第三SRS符号相邻时，所述终端设备传输所述第一SRS与所述第三SRS时的带宽相同；当所述第一SRS为传统SRS时，所述第三SRS为附加SRS；或者，当所述第一SRS为附加SRS时，所述第三SRS为传统SRS。
第三方面、本申请实施例提供一种信号传输方法，该方法包括：终端设备获取第一SRS的第一配置信息、第二配置信息、第五配置信息和第四配置信息，其中，所述第一配置信息和第二配置信息所述用于确定所述第一SRS进行跳频的配置信息，所述第五配置信息用于确定第一SRS进行天线切换的配置信息，所述第四配置信息用于指示第一SRS所占用的时域符号的配置信息；所述终端设备根据所述第一配置信息、所述第二配置信息、所述第五配置信息和所述第四配置信息，确定发送第一SRS时，先完成SRS跳频，再进行SRS天线切换。
一种可能的实现方式中，所述方法还包括：所述终端设备获取第三配置信息和第八配置信息；所述第三配置信息用于指示所述第一SRS占用的时域符号在正常子帧上，包括除最后一个OFDM符号以外的其它至少一个OFDM符号；所述第八配置信息用于指示所述终端设备发送所述第一SRS的小区；所述第一配置信息用于指示SRS的跳频带宽配置，所述第二配置信息用于指示终端设备级SRS带宽配置；当所述第一配置信息小于所述第二配置信息时，所述终端设备发送所述第一SRS时进行跳频；所述第五配置信息指示所述终端设备使能天线切换时，所述终端设备发送所述第一SRS时进行天线切换。
一种可能的实现方式中，所述方法还包括：所述第四配置信息用于指示所述终端设备发送SRS时进行重复的重复次数R；所述终端设备根据所述第一配置信息，所述第二配置信息、所述第三配置信息、所述第四配置信息和所述第五配置信息，确定发送所述第一SRS时，先完成SRS重复，再完成SRS跳频，最后进行SRS天线切换。
一种可能的实现方式中，所述方法还包括：所述终端设备根据所述第三配置信息和所述第四配置信息，确定第一参数；所述终端设备根据所述第一参数，确定在第l个SRS符号上发送SRS所使用天线的天线端口索引，l为自然数。
一种可能的实现方式中，所述方法还包括：所述终端设备接收来自所述网络设备的第一指示信息；所述第一指示信息用于指示所述第一参数是否连续计数；当所述第一指示信息指示所述第一参数连续计数时，所述终端设备在第一子帧中传输所述第一SRS时，所述终端设备根据所述第三配置信息和所述第四配置信息，确定第一参数，包括：
所述终端设备根据以下公式确定所述第一参数：
Figure PCTCN2020088032-appb-000012
其中，n SRS_AS为所述第一参数，
Figure PCTCN2020088032-appb-000013
λ为根据所述终端设备当前所使用的天线模式确定的参数，R表示所述终端设备发送SRS时进行重复的重复次数，l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，
Figure PCTCN2020088032-appb-000014
为正常子帧内传输SRS所占用的OFDM符号总数量，
Figure PCTCN2020088032-appb-000015
表示向下取整运算，Δ表示所述终端设备在第二子帧中发送第二SRS的最后一个符号时，所述第一参数的取值，所述第二子帧为所述终端设备在发送所述第一子帧之前发送的最后一个子帧。
一种可能的实现方式中，所述终端设备根据所述
Figure PCTCN2020088032-appb-000016
和所述R，确定第一参数，包括：
所述终端设备根据以下公式确定所述第一参数：
Figure PCTCN2020088032-appb-000017
其中，n SRS_AS为所述第一参数，
Figure PCTCN2020088032-appb-000018
λ为根据所述终端设备当前所使用的天线模式确定的参数，R表示所述终端设备发送SRS时进行重复的重复次数，l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，
Figure PCTCN2020088032-appb-000019
为正常子帧内传输SRS所占用的OFDM符号总数量，
Figure PCTCN2020088032-appb-000020
表示向下取整运算。
一种可能的实现方式中，所述方法还包括：所述终端设备按照以下方式获取第一跳频次数
Figure PCTCN2020088032-appb-000021
其中，n hop为所述第一跳频次数，m SRS,0表示配置的SRS小区级带宽，
Figure PCTCN2020088032-appb-000022
表示配置的SRS终端设备级带宽；或者，所述终端设备接收来自所述网络设备的第一跳频次数n hop；或者，所述终端设备按照以下方式，根据所述第三配置信息、所述第四配置信息和所述第五配置信息，确定所述第一跳频次数：所述第一跳频次数
Figure PCTCN2020088032-appb-000023
λ为由所述第五配置信息确定的参数：当所述第二配置信息指示1T4R天线切换使能时，λ＝4；当所述第二配置信息指示2T4R或1T2R天线切换使能时，λ＝2；
Figure PCTCN2020088032-appb-000024
为所述第三配置信息；R为所述第四配置信息。
一种可能的实现方式中，所述方法还包括：所述终端设备按照以下方式，根据所述第一跳频次数计算所述第一参数：
Figure PCTCN2020088032-appb-000025
其中，n SRS_AS为所述第一参数，
Figure PCTCN2020088032-appb-000026
R表示所述终端设备发送SRS时进行重复的重复次数，l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，n hop表示所述第一跳频次数，
Figure PCTCN2020088032-appb-000027
表示向下取整运算；所述终端设备根据所述第一参数，确定在第l个SRS符号上发送SRS所使用天线的天线端口索引，l为自然数。
一种可能的实现方式中，所述方法还包括：所述终端设备按照以下方式获取第一跳频次数n hop：
Figure PCTCN2020088032-appb-000028
其中，n hop为所述第一跳频次数，m SRS,b表示第一SRS终端设备级带宽，b＝0,1,2,3，
Figure PCTCN2020088032-appb-000029
表示第二SRS终端设备级带宽，B SRS∈{0,1,2,3}。其中b可以是所述网络设备高层参数配置的,可选的，b也可以表示为b hop,由高层RRC信令配置。
一种可能的实现方式中，所述方法还包括：所述终端设备接收来自所述网络设备的第一跳频次数n hop。
一种可能的实现方式中，所述方法还包括：所述终端设备按照以下方式，根据所述第三配置信息、所述第四配置信息和所述第五配置信息，确定所述第一跳频次数：所述第一跳频次数
Figure PCTCN2020088032-appb-000030
或
Figure PCTCN2020088032-appb-000031
其中
Figure PCTCN2020088032-appb-000032
和
Figure PCTCN2020088032-appb-000033
分别表示向上和向下取整运算。
Figure PCTCN2020088032-appb-000034
为所述第三配置信息；R为所述第四配置信息。λ为由所述第五配置信息确定的参数，例如，当所述第二配置信息指示1T4R天线切换使能时，λ＝4；当所述第二配置信息指示2T4R或1T2R天线切换使能时，λ＝2，或者λ根据UE上报的天线能力信息确定，
一种可能的实现方式中，所述方法还包括：所述终端设备按照以下方式，根据所述第一跳频次数计算所述第一参数：
Figure PCTCN2020088032-appb-000035
或者，
Figure PCTCN2020088032-appb-000036
其中，n SRS_AS为所述第一参数，
Figure PCTCN2020088032-appb-000037
R表示所述终端设备发送SRS时进行重复的重复次数，l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，n hop表示所述第一跳频次数，
Figure PCTCN2020088032-appb-000038
和
Figure PCTCN2020088032-appb-000039
分别表示向上和向下取整运算；所述终端设备根据所述第一参数，确定在第l个SRS符号上发送SRS所使用天线的天线端口索引，l为自然数。
一种可能的实现方式中，所述方法还包括：所述终端设备获取第五配置信息；所述第五配置信息用于指示所述终端设备终端设备支持的天线模式；若所述第五配置信息指示的所述天线模式为1T4R，且当所述终端设备采用跳频方式传输所述第一SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
Figure PCTCN2020088032-appb-000040
若所述第五配置信息指示的所述天线模式为1T2R，且当所述终端设备采用跳频方式传输所述第一SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
Figure PCTCN2020088032-appb-000041
若所述第五配置信息指示的所述天线模式为2T4R，且当所述终端设备采用跳频方式传输所述第一SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
Figure PCTCN2020088032-appb-000042
其中Λ表示终端设备用于传输所述第一SRS的天线对数。
一种可能的实现方式中，所述方法还包括：所述终端设备获取第五配置信息；所述第五配置信息用于指示所述终端设备终端设备支持的天线模式；若所述第五配置信息指示的所述天线模式为1T4R，且当所述终端设备采用跳频方式传输所述第一SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
Figure PCTCN2020088032-appb-000043
其中，a(n SRS_AS)表示所述第l个符号的天线端口索引，n SRS_AS为所述第一参数；K为频域上分成的份数由所述第一配置信息和第二配置信息获得，K为正整数；β为预设值；
或者，若所述第五配置信息指示的所述天线模式为1T4R，且当所述终端设备不采用跳频方式传输所述SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
a(n SRS_AS)＝n SRS_AS mod 4
其中，a(n SRS_AS)表示所述第l个符号的天线端口索引，n SRS_AS为所述第一参数。
一种可能的实现方式中，所述方法还包括：若所述第五配置信息指示的所述天线模式为2T4R，且当所述终端设备采用跳频方式传输所述第一SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
Figure PCTCN2020088032-appb-000044
其中，a(n SRS_AS)表示所述第l个符号的天线端口索引，Λ表示终端设备用于传输所述第一SRS的天线对数，n SRS_AS为所述第一参数； K为频域上分成的份数由所述第一配置信息和第二配置信息获得，K为正整数；β为预设值；
或者，若所述第五配置信息指示的所述天线模式为2T4R，且当所述终端设备不采用跳频方式传输所述SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
a(n SRS_AS)＝n SRS_AS modΛ
其中，a(n SRS_AS)表示所述第l个符号的天线端口索引，n SRS_AS为所述第一参数，Λ表示终端设备用于传输所述第一SRS的天线对数。
一种可能的实现方式中，所述方法还包括：若所述第五配置信息指示的所述天线模式为1T2R，且当所述终端设备采用跳频方式传输所述第一SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
Figure PCTCN2020088032-appb-000045
其中，a(n SRS_AS)表示所述第l个符号的天线端口索引；n SRS_AS为所述第一参数；K为频域上分成的份数由所述第一配置信息和第二配置信息获得，K为正整数；β为预设值；
或者，若所述第五配置信息指示的所述天线模式为1T2R，且当所述终端设备不采用跳频方式传输所述SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
a(n SRS_AS)＝n SRS_AS mod 2
其中，a(n SRS_AS)表示所述第l个符号的天线端口索引，n SRS_AS为所述第一参数。
一种可能的实现方式中，所述方法还包括：
所述终端设备获取第六配置信息，所述第六配置信息用于指示一个子帧内，所述第一SRS包括的所有SRS符号中每个保护间隔GP符号的数量、每个GP符号位置以及每个GP符号的长度；或者，所述终端设备获取第七配置信息，所述第七配置信息为比特位图，所述比特位图中的每个比特位于一个子帧中的一个符号唯一对应；所述比特位图中的一个比特的取值为第一取值时，表示该比特对应的符号为SRS符号。
一种可能的实现方式中，所述方法还包括：所述终端设备接收来自所述网络设备的传输功率控制TPC；当所述第一SRS为传统SRS时，所述终端设备根据所述TPC确定所述第一SRS的传输功率；或者，当所述第一SRS为附加SRS时，所述终端设备根据所述TPC确定所述第一SRS的传输功率；或者，当所述第一SRS为传统SRS或者附加SRS时，所述终端设备根据所述TPC确定所述第一SRS的传输功率；所述终端设备采用所述传输功率传输所述第一SRS。
第四方面，本申请实施例提供一种信号传输方法，包括：网络设备向终端设备发送第一配置信息和第二配置信息；所述第一配置信息用于指示SRS的跳频带宽配置；所述第二配置信息用于指示终端设备级SRS带宽配置；所述网络设备接收来自终端设备的第一SRS；在所述终端设备根据所述第一配置信息和所述第二配置信息跳频传输所述第一SRS时，每在使用跳频对整个小区级SRS带宽完成一次探测时，切换一次发送所述第一SRS的天线。
一种可能的实现方式中，所述方法包括：
所述网络设备向所述终端设备发送传输功率控制TPC；所述TPC用于指示：所述第一SRS与所述终端设备待发送的第二SRS之间，至少包括一个保护间隔GP符号；当所述第一SRS为传统SRS时，所述第二SRS为附加SRS；或者，当所述第一SRS为附加SRS时，所述第二SRS为传统SRS。
一种可能的实现方式中，所述方法还包括：
所述网络设备向所述终端设备发送传输功率控制TPC；所述TPC用于指示：当所述第一SRS的第一SRS符号与所述终端设备待发送的第三SRS中的第三SRS符号相邻时，所述终端设备传输所述第一SRS与所述第三SRS时的带宽相同；当所述第一SRS为传统SRS时，所述第三SRS为附加SRS；或者，当所述第一SRS为附加SRS时，所述第三SRS为传统SRS。
第五方面，本申请实施例提供一种信号传输方法，包括：
终端获取第一信息，所述第一信息用于指示SRS天线切换；
所述终端根据所述第一信息进行SRS天线切换；
其中，所述SRS天线切换满足：
Figure PCTCN2020088032-appb-000046
或者，
Figure PCTCN2020088032-appb-000047
或者，
Figure PCTCN2020088032-appb-000048
其中，a(n SRS)表示第l个SRS符号上发送SRS所使用天线的天线端口索引，
Figure PCTCN2020088032-appb-000049
Figure PCTCN2020088032-appb-000050
R表示所述终端设备发送SRS时进行重复的重复次数，l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，
Figure PCTCN2020088032-appb-000051
表示SRS的符号数(例如可以通过SRS的起始符号和SRS的传输持续时间获得，可选的，SRS的传输持续时间不包括保护符号guard symbol)，m SRS,b表示第一UE级带宽，b＝0,1,2,3，
Figure PCTCN2020088032-appb-000052
表示第二UE级带宽，B SRS∈{0,1,2,3}。其中b可以是网络设备配置给终端的。可选的，b也可以表示为b hop,由网络设备配置给终端。例如：网络设备通过RRC信令将b或者b hop,发送给终端。Λ表示终端设备用于传输所述SRS的天线对数。例如，Λ的取值可以是2，或者3。作为一种可选的理解，Λ的取值为2时，对应的天线对数为{2a(n SRS),2a(n SRS)+1}
；作为另一种可选的理解，Λ的取值为3时，对应的天线对数为{0,a(n SRS)+1}。作为一种可选的设计，当终端设备的天线模式为1T4R时，可以采用
Figure PCTCN2020088032-appb-000053
Figure PCTCN2020088032-appb-000054
作为一种可选的设计，当终端设备的天线模式为1T2R时，可以采用
Figure PCTCN2020088032-appb-000055
作为一种可选的设计，当终端设备的天线模式为2T4R时，可以采用
Figure PCTCN2020088032-appb-000056
其中，终端设备的天线模式可以由网络设备配置。例如，网络设备通过高层RRC信令将终端设备的天线模式配置为1T2R，1T4R，或者2T4R。
第五方面的其他可选的设计和说明，可以参考如上第一至第四方面的相关内容，此处不做赘述。
第六方面，本申请实施例提供一种信号传输方法，包括：
网络设备向终端设备发送第一信息，所述第一信息用于指示所述终端设备进行SRS天线切换。
其中，所述SRS天线切换满足：
Figure PCTCN2020088032-appb-000057
或者，
Figure PCTCN2020088032-appb-000058
或者，
Figure PCTCN2020088032-appb-000059
关于第六方面的上述公式，以及可选的设计等内容可以参考第五方面的说明。
第七方面，本申请提供一种装置。所述装置具备实现上述第一方面或第三方面或第五方面涉及的终端设备的功能，比如，所述装置包括所述终端设备执行上述第一方面或第三方面或第五方面涉及步骤所对应的模块或单元或手段(means)，所述功能或单元或手段(means)可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现。
在一种可能的设计中，所述装置包括处理单元、收发单元，处理单元、收发单元执行的功能可以和上述第一方面或第三方面或第五方面涉及的终端设备执行的步骤相对应。
在一种可能的设计中，所述装置包括处理器，还可以包括收发器，所述收发器用于收发信号，所述处理器执行程序指令，以完成上述第一方面或第三方面或第五方面中任意可能的设计或实现方式中终端设备执行的方法。
其中，所述装置还可以包括一个或多个存储器，所述存储器用于与处理器耦合。所述一个或多个存储器可以和处理器集成在一起，也可以与处理器分离设置，本申请并不限定。
一种可能的方式，存储器保存实现上述第一方面或第三方面或第五方面涉及的终端设备的功能的必要计算机程序指令和/或数据。所述处理器可执行所述存储器存储的计算机程序指令，完成上述第一方面或第三方面或第五方面任意可能的设计或实现方式中终端设备执行的方法。
第八方面，本申请提供一种装置。所述装置具备实现上述第二方面或第四方面或第六方面涉及的网络设备的功能，比如，所述装置包括所述网络设备执行上述第二方面或第四方面或第六方面涉及步骤所对应的模块或单元或手段(means)。所述功能或单元或手段(means)可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现。
在一种可能的设计中，所述装置包括处理单元、收发单元，处理单元、收发单元执行的功能可以和上述第二方面或第四方面或第六方面中任意可能的设计或实现方式中涉及的网络设备执行的步骤相对应。
在另一种可能的设计中，所述通信装置包括处理器，还可以包括收发器，所述收发器用于收发信号，所述处理器执行程序指令，以完成上述第二方面或第四方面或第六方面中任意可能的设计或实现方式中网络设备执行的方法。
其中，所述装置还可以包括一个或多个存储器，所述存储器用于与处理器耦合。所述一个或多个存储器可以和处理器集成在一起，也可以与处理器分离设置，本申请并不限定。
一种可能的方式，存储器保存实现上述第二方面或第四方面或第六方面中任意可能的设计或实现方式中涉及的网络设备的功能的必要计算机程序指令和/或数据。所述处理器可执行所述存储器存储的计算机程序指令，完成上述第二方面或第四方面或第六方面中任意可能的设计或实现方式中网络设备执行的方法。
本申请实施例提供一种计算机可读存储介质，所述计算机存储介质中存储有计算机可读指令，当计算机读取并执行所述计算机可读指令时，使得计算机执行上述任一种可能的设计中的方法。其中该计算机可以为前述的终端设备或网络设备。
本申请实施例提供一种计算机程序产品，当计算机读取并执行所述计算机程序产品时，使得计算机执行上述任一种可能的设计中的方法。
本申请实施例提供一种芯片，所述芯片与存储器相连，用于读取并执行所述存储器中存储的软件程序，以实现上述任一种可能的设计中的方法。
本申请实施例提供一种通信系统，包括上述任一种可能的终端设备以及上述任一种可能的网络设备。
附图说明
图1为现有技术中采用跳频的方式传输SRS并进行天线切换的示意图；
图2为本申请实施例提供的传输SRS方法的通信系统的示意图；
图3为本申请实施例提供的一种信号传输方法的流程示意图；
图4为本申请实施例提供的传输SRS方法对应的比特位图；
图5为本申请实施例提供的终端设备传输SRS的示意图；
图6为跳频传输SRS的示意图；
图7为本申请实施例提供的一种通信装置结构示意图；
图8为本申请实施例提供的一种通信装置结构示意图；
图9为本申请实施例提供的一种通信装置结构示意图；
图10为本申请实施例提供的一种通信装置结构示意图。
具体实施方式
下面结合说明书附图对本申请实施例做详细描述。
本申请实施例可以应用新无线(new radio，NR)系统、全球移动通讯(global system of mobile communication，GSM)系统、码分多址(code division multiple access，CDMA)系统、宽带码分多址(wideband code division multiple access，WCDMA)系统、长期演进(long term evolution，LTE)系统、先进的长期演进(advanced long term evolution，LTE-A)系统等其它通信系统，具体的，在此不做限制。
为便于理解本申请实施例，首先以图2中示出的通信系统为例详细说明适用于本申请实施例的通信系统。图2示出了适用于本申请实施例的天线切换方法的通信系统的示意图，图2中，网络设备通过终端设备发送的SRS来估计不同频段的上行信道质量。网络设备是网络侧的一种用于发射或接收信号的实体，可以给终端设备配置SRS参数。终端设备是用户侧的一种用于接收或发射信号的实体，可以发送SRS给网络设备。
本申请实施例中，终端设备，可以为具有无线收发功能的设备或可设置于任一设备中的芯片，也可以称为用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、无线通信设备、用户代理或用户装置。本申请实施例中的终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。
网络设备，可以是LTE系统中的演进型基站(evolutional node B，eNB)，可以是全球移动通讯(global system of mobile communication，GSM)系统或码分多址(code division multiple access，CDMA)中的基站(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple access，WCDMA)系统中的基站(nodeB，NB)等。本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
结合上述描述，如图3所示，为本申请实施例提供的一种信号传输方法的流程示意图。
步骤301：终端设备上报能力信息。
步骤302：网络设备根据所述能力信息确定高层参数，并向所述终端设备发送高层参数。
步骤303：终端设备根据高层参数向网络设备发送SRS。
步骤304：网络设备接收来自终端设备的SRS，并根据所述SRS进行信道估计。
步骤301中，能力信息可以包括终端设备支持的天线模式，例如天线模式可以为‘2T4R’、‘1T4R’、‘1T2R’等。终端设备支持的天线模式可以指示出终端设备有多少根天线可用于接收信号，多少根天线可用于发送信号。举例来说，天线模式为2T4R时，2T表示用于发送信号的天线数目为2，4R表示用于接收信号的天线数目为4，其它情况依次类推，不再赘述。
终端设备的能力信息还可以包括终端设备支持的带宽大小、终端设备的发送功率等信息，在此不再逐一举例说明。
步骤302中，网络设备配置的高层参数中可以包括以下一项或多项：
第一配置信息，用于指示SRS的跳频带宽配置b hop，对第一配置信息的具体名称并不限定，例如可以称为SRS的跳频带宽(srs-HoppingBandwidth)。
第二配置信息，用于指示SRS带宽B SRS，对第二配置信息的具体名称并不限定，例如可以称为SRS的带宽(srs-Bandwidth)。
第三配置信息，用于指示一个子帧内传输的SRS符号数
Figure PCTCN2020088032-appb-000060
也就是第一SRS占用的时域符号在正常子帧上，包括除最后一个OFDM符号以外的其它至少一个OFDM符号，对第三配置信息的具体名称并不限定，例如可以称为Rel-16 LTE标准下的传输符号数(nrofSymbols-r16)。
第四配置信息，用于指示SRS符号重复因子R，对第四配置信息的具体名称并不限定，例如可以称为Rel-16 LTE标准下的重复因子(repetition Factor-r16)。
第一参数，用于指示终端设备传输SRS天线的天线端口索引，对第一参数的具体名称并不限定，例如可以称为SRS天线切换传输计数(n SRS_AS)。
第五配置信息，用于指示终端设备支持的天线模式，对第五配置信息的具体名称并不限定，例如可以称为SRS的天线开关(SRS-Antenna-Switching)。
第六配置信息，用于指示一个子帧内，所述第一SRS包括的所有SRS符号中每个保护间隔(guard period，GP)符号的数量、每个GP符号位置以及每个GP符号的长度。每个GP包含Y个正交频分复用(orthogonal frequency division multiplexing，OFDM)符号，Y为正整数，需要说明的是，SRS符号可以是指SRS占用的OFDM符号，非SRS符号可以指非SRS的信号占用的OFDM符号。
第七配置信息，用于指示一个子帧内发送的符号为SRS符号或GP符号，对第七配 置信息的具体名称并不限定，例如可以称为比特位图(bitmap)。
第八配置信息，用于指示小区特定参数C SRS，对第八配置信息的具体名称并不限定，例如可以称为SRS的带宽配置(srs-BandwidthConfig)。
第九配置信息，用于指示SRS频域起始位置，对第九配置信息的具体名称并不限定，例如可以称为频率域位置(freqDomainPosition)。
步骤303中，终端设备根据接收到的高层参数确定GP、SRS传输功率、是否使能跳频传输SRS和切换的天线端口索引，下面分别进行详细说明。
终端设备确定GP：
高层参数中的第六配置信息可以指示出在一个子帧内包括的GP的数目、位置和每个GP的长度。GP包含Y个OFDM符号，Y可以是1也可以是其他正整数，跳频或天线切换中的GP长度可以相同或不同，Y个OFDM符号中每个OFDM符号，又可以称为一个GP符号。网络设备可以根据终端设备的能力信息，或网络设备自身确定所需的GP的数目和长度。通过第六配置信息指示GP的方式为显示方式，除第六配置信息外，第三配置信息、第四配置信息等参数也可以独立包含在高层参数中，分别对终端设备进行指示。
如果高层参数中不包括第六配置信息，也可以通过隐式方式指示出所有GP的数目、位置和每个GP的长度。举例来说，也可以通过高层参数配置比特位图(bitmap)，将第三配置信息、第四配置信息和第六配置信息统一包括进去，通过bitmap对终端设备的GP进行联合指示。
如图4所示，为本申请实施例提供的天线切换方法对应的bitmap，横轴l为子帧中SRS符号的序号。在bitmap中，比特为‘1’表示该位置上有SRS符号；比特位为‘0’表示该位置上没有SRS符号，该位置上有GP符号。其中，第三配置信息指示了bitmap中比特位的总数目，第四配置信息指示了bitmap中比特连续为‘1’的比特位数目，第六配置信息指示了bitmap中比特为‘0’的比特位数目及位置。终端设备根据bitmap来传输SRS符号，在计算SRS传输计数n SRS时将不包括这些GP符号。由图4可知，第0、1、3、4、6、7个符号位置对应比特为‘1’，因此这些符号位置上均有SRS符号；第2、5、8～12个符号位置对应比特为‘0’,这些符号位置上均没有SRS符号，但均有GP符号。
终端设备确定SRS传输功率：
LTE SRS的频域资源：
现有Rel-15 LTE标准支持SRS在上行正常子帧或特殊子帧中传输。在正常子帧中传输的SRS位于最后一个OFDM符号上；在特殊子帧中传输的SRS位于UpPTS包含的OFDM符号上。为了提升SRS容量，特殊子帧中UpPTS最多可以配置6个OFDM符号，并用于SRS传输。然而，随着对支持多种业务和应用的需求的持续增长，SRS容量的短缺变得明显。为了进一步增强SRS的容量和覆盖范围，Rel-16 LTE中引入新型SRS符号来满足正常子帧中多个符号的SRS传输。为了与现有Rel-15 LTE中的SRS 相区别，Rel-15 LTE的SRS称为传统SRS(legacy SRS)，Rel-16引入的SRS称为附加SRS(additional SRS)。目前，标准同意一个正常子帧的前1到13个OFDM符号均可以用于传输additional SRS，前1到13个OFDM符号中additional SRS占用的OFDM符号为additional SRS符号，正常子帧中最后一个符号可用于传输legacy SRS，正常子帧中由legacy SRS占用的最后一个OFDM符号为additional SRS符号。换言之，legacy SRS分布在最后一个OFDM符号上，不同梳齿的legacy SRS间隔交替分布；additional SRS分布在第1到13个OFDM符号上，可以占据一个或多个OFDM符号。
在现有Rel-15 LTE协议(TS 36.213v15.4.0第8.2节)中定义了2种类型的legacy SRS传输：第一种，周期性SRS传输(trigger type 0)：由高层RRC信令配置，每隔一定的周期发送一次。第二种，非周期性SRS传输(trigger type 1)：由物理下行控制信道(physical downlink control channel，PDCCH)的下行链路控制信息(downlink control information，DCI)触发。
触发类型trigger type 0和trigger type 1的时域、频域、码域SRS参数均由高层RRC信令半静态配置。Rel-15的legacy SRS支持周期性传输和非周期性传输。针对Rel-16的addition SRS，根据3GPP RAN1#94、#94bis、#95和#96会议讨论结果，目前已同意支持子帧内的非周期性SRS传输。此外，标准已支持同一个终端设备可同时支持legacy SRS和additional SRS传输。
SRS的频域资源由三个要素确定：SRS带宽，传输梳齿偏移和频域起始位置。确定了这三要素之后，就能确定SRS的频域所占的资源。
第一步确定SRS带宽m SRS,b，即每个SRS在频域上占多少个RB。根据上行带宽
Figure PCTCN2020088032-appb-000061
从TS 36.211的表格5.5.3.2-1至5.5.3.2-4(见表1至4)中选出所需查找表，再根据高层参数SRS带宽配置(srs-BandwidthConfig)配置的小区特定的第八配置信息，C SRS∈{0,1,2,3,4,5,6,7}和高层参数SRS带宽(srs-Bandwidth)配置的UE特定的第二配置信息B SRS∈{0,1,2,3}，从查找表中获得当b＝B SRS时，SRS带宽大小m SRS,b和频域上分成的份数N b。由表可知，给定小区特定的参数C SRS之后，B SRS＝0对应的SRS信号带宽最大，本申请实施例中，将B SRS对应的m SRS,0称为宽带SRS信号带宽。并且，由表1～表4可知，得到下一级SRS信号带宽总是等于上一级带宽除以下一级分成的份数：m SRS,1＝m SRS,0/N 1和m SRS,2＝m SRS,1/N 2和m SRS,3＝m SRS,2/N 3。本申请实施例中，将B SRS＝1、B SRS＝2、B SRS＝3对应的SRS带宽m SRS,1、m SRS,2、m SRS,3称为窄带SRS带宽。
Figure PCTCN2020088032-appb-000062
Figure PCTCN2020088032-appb-000063
表1
Figure PCTCN2020088032-appb-000064
b＝0,1,2,3时，m SRS,b和N b的取值
Figure PCTCN2020088032-appb-000065
表2
Figure PCTCN2020088032-appb-000066
b＝0,1,2,3时，m SRS,b和N b的取值
Figure PCTCN2020088032-appb-000067
表3
Figure PCTCN2020088032-appb-000068
b＝0,1,2,3时，m SRS，b和N b的取值
Figure PCTCN2020088032-appb-000069
Figure PCTCN2020088032-appb-000070
表4
Figure PCTCN2020088032-appb-000071
b＝0,1,2,3时，m SRS,b和N b的取值
第二步确定传输梳齿偏移
Figure PCTCN2020088032-appb-000072
由高层参数(transmissionCombNum)配置传输梳齿数目K TC(例如可以为4)，否则K TC＝2。传输梳齿偏移
Figure PCTCN2020088032-appb-000073
不同UE在相同子帧、相同RB集合上发送SRS时，彼此之间使用不同的传输梳齿偏移予以区分。
第三步确定频域起始位置
Figure PCTCN2020088032-appb-000074
由第一步中SRS信号带宽占据RB数目为m SRS,b，每一个RB包含
Figure PCTCN2020088032-appb-000075
个子载波，可得SRS信号带宽占据子载波数为
Figure PCTCN2020088032-appb-000076
结合宽带SRS信号频域起始位置
Figure PCTCN2020088032-appb-000077
和窄带SRS信号频域位置索引n b，给出窄带SRS信号频域上的起始的子载波位置为：
Figure PCTCN2020088032-appb-000078
下面把公式(1)分为
Figure PCTCN2020088032-appb-000079
和
Figure PCTCN2020088032-appb-000080
两部分来分析：
第一项
Figure PCTCN2020088032-appb-000081
表示频带上可用于SRS传输的第一个子载波的位置，或者说宽带SRS的起始子载波所在的位置。
Figure PCTCN2020088032-appb-000082
由上行带宽
Figure PCTCN2020088032-appb-000083
宽带SRS带宽m SRS,0和SRS梳齿
Figure PCTCN2020088032-appb-000084
共同决定。对于正常子帧而言。
Figure PCTCN2020088032-appb-000085
其中
Figure PCTCN2020088032-appb-000086
是为了把上行系统低频处，用于PUCCH传输的区域排除掉。梳齿
Figure PCTCN2020088032-appb-000087
的值由第二步给出。
第二项
Figure PCTCN2020088032-appb-000088
表示根据窄带SRS信号的频带宽度
Figure PCTCN2020088032-appb-000089
和频域位置索引n b来选出对应SRS子带在整个宽带SRS中所处的频域位置。n b的值与高层配置的频域位置参数n RRC∈{0,1,…,23}有关，即每个最小的SRS子带对应一个频域位置索引n b，对应一个n RRC的数值。
NR SRS的频域资源：
与Rel-15 LTE SRS类似，Rel-15 NR SRS的频域资源由三个要素确定：SRS带宽，传输梳齿偏移和频域起始位置。确定了这三要素之后，就能确定SRS的频域所占的资源。
第一步确定SRS带宽m SRS,b，即每个SRS在频域上占多少个RB。根据配置参数C SRS∈{0,1,…,63}和B SRS∈{0,1,2,3}，查找TS 38.211的表格(表5)，获得每个SRS在 频域上所占的RB数m SRS,b和频域上分成的份数N b，其中b＝B SRS。
第二步确定传输梳齿偏移
Figure PCTCN2020088032-appb-000090
由高层参数transmissionCombNum配置传输梳齿数目K TC∈{2,4}。传输梳齿偏移
Figure PCTCN2020088032-appb-000091
不同UE在相同子帧、相同RB集合上发送SRS时，彼此之间使用不同的传输梳齿偏移予以区分。
第三步确定频域起始位置
Figure PCTCN2020088032-appb-000092
由公式
Figure PCTCN2020088032-appb-000093
获得。其中，
Figure PCTCN2020088032-appb-000094
表示频带上可用于SRS传输的第一个子载波的位置，
Figure PCTCN2020088032-appb-000095
由频域移位值n shift、传输梳齿数目K TC和传输梳齿偏移
Figure PCTCN2020088032-appb-000096
共同决定。
Figure PCTCN2020088032-appb-000097
表示SRS信号序列的长度(即占多少个子载波)。n b表示频域位置索引。
Figure PCTCN2020088032-appb-000098
Figure PCTCN2020088032-appb-000099
Figure PCTCN2020088032-appb-000100
表5
终端设备还可以确定终端设备传输SRS的功率。网络设备通过下行链路控制信息(downlink control information，DCI)中的传输功率控制(transmit power control，TPC)来指示终端设备传输SRS的功率。其中，终端设备传输的SRS包括两类：legacy SRS和additional SRS。
对于TPC，由于附加SRS可以通过Rel-15的DCI格式单独触发，或与传统SRS一起触发，因此下面将逐个讨论TPC问题。在当前的规范中，TPC携带在DCI中，TPC的用法总结如表6所示。
TPC在DCI中 TPC用法
在上行链路中授权 PUSCH
在下行链路中授权 PUCCH
在DCI中格式为3/3A PUCCH和PUSCH
在DCI中格式为3B SRS
表6 TPC信令和用法
1)对于TPC在DCI中格式为3B的情形，可以在没有PUSCH/PUCCH配置的载波上，通过TPC命令指示TPC动态调整。因此，TPC仅用于SRS。这种设计以及功率控制公式(公式1)可以很容易地重复用于附加的SRS，并且规范影响非常小。
P SRS,c(i)＝min{P CMAX,c(i),10log 10(M SRS,c)+P O_SRS,c(m)+α SRS,c·PL c+f SRS,c(i)}  [dBm]
2)对于UL授权或DCI格式3/3A，TPC值用于功率控制，但如果触发，也可用于附加SRS。有两种情况：
情况1：仅触发非周期性附加SRS。
这种情况下，因为只触发了附加SRS，因此相应DCI中的TPC值同时适用于附加SRS和PUSCH。但是，附加SRS的功率控制可以重复使用(公式1)。
情况2：在同一子帧内触发传统SRS和附加SRS。
在这种情况下，简单的方法是一个TPC值适用于附加SRS和PUSCH。附加SRS可以使用(等式1)，而传统SRS遵循与PUSCH耦合的功率控制。
3)对于DL授权，TPC值可以用于PUCCH和附加SRS。此外，功率控制公式用于附加SRS。
总之，当触发附加SRS时，无论DCI格式如何，DCI中的TPC值都适用于附加SRS。并且可以重用没有PUSCH/PUCCH的DCI的3B格式的SRS的功率控制公式。
在Rel-15 LTE标准中，DCI中TPC指示的功率为终端设备传输legacy SRS的功率，在引入additional SRS后，DCI若是触发additional SRS，则TPC指示的是additional SRS的传输功率控制。若DCI只触发legacy SRS，则TPC指示的是legacy SRS的传输功率控制。
对于Rel-16 LTE标准，支持一个DCI同时触发legacy SRS与additional SRS传输，这时应该按照以下三种方法之一来进行：
第一种：如果一个DCI同时触发legacy SRS与additional SRS，则该DCI中的TPC同时用于计算传输legacy SRS与additional SRS的功率。通过这种方法，不改变原来协议的约定，可以保持协议的连续性，提高系统兼容性。
第二种：如果一个DCI同时触发legacy SRS与additional SRS，则该DCI中的TPC只用于legacy SRS的功率计算。
通过这种方法，可以保证legacy SRS的行为不会改变，对其他终端设备的SRS干扰不会变化。
第三种：如果一个DCI同时触发legacy SRS与additional SRS，则该DCI中的TPC只用于additional SRS的功率计算。
通过这种方法，可以保证additional SRS的行为不会改变，对其他终端设备的SRS干扰不会变化。
对于Rel-16 LTE标准，支持一个子帧内legacy SRS与additional SRS同时传输，而由于带宽等参数的不同，legacy SRS与additional SRS的传输功率往往不同。现在已支持正常子帧的前13个OFDM符号可用于传输additional SRS，当additional SRS与legacy SRS在时域上直接相邻时，由于两者的功率不同，会出现功率跳变，这就会导致发送additional SRS后，发送时域上直接相邻的legacy SRS出现畸变。因此，本申请实施例设计如下三种方案来避免这一问题，网络设备选择以下方案的任意一种来执行：
第一种：不触发网络设备和终端设备在时域上直接相邻的additional SRS与legacy SRS传输。如果出现两者在时域上直接相邻传输的情况，终端设备将不发送已触发的legacy SRS或不发送已触发的additional SRS。
第二种：网络设备给终端设备配置SRS参数时，在additional SRS与legacy SRS之间添加至少一个符号作为GP符号，举例来说，添加1个符号作为GP符号。
第三种：如果出现两者在时域上直接相邻传输的情况，网络设备配置SRS参数需要保证legacy SRS与additional SRS的带宽相同，从而保证两种SRS的功率相同，不出现功率跳变。
终端设备确定是否使能跳频传输SRS：
终端设备根据第一配置信息指示的SRS的跳频带宽配置b hop和第二配置信息指示的SRS带宽B SRS，确定是否使能跳频传输SRS。终端设备判断b hop和B SRS的大小关系，若b hop<B SRS，则使能跳频传输SRS；若b hop≥B SRS则不使能跳频传输SRS。需要说明的是，无论是否使能跳频传输SRS，SRS传输计数均为
Figure PCTCN2020088032-appb-000101
其中
Figure PCTCN2020088032-appb-000102
l为一个子帧中SRS符号的序号。
对于使能跳频传输SRS的情形，根据以下公式确定SRS频域起始位置
Figure PCTCN2020088032-appb-000103
Figure PCTCN2020088032-appb-000104
其中，第一项
Figure PCTCN2020088032-appb-000105
表示频带上可用于传输SRS的第一个子载波的位置，或者说宽带SRS的起始子载波所在的位置。第二项
Figure PCTCN2020088032-appb-000106
中，m SRS,b为SRS带宽占据资源块(Resource Block，RB)的数目，
Figure PCTCN2020088032-appb-000107
为每一个RB包含的子载波个数，因此，可得SRS信号带宽占据子载波数为
Figure PCTCN2020088032-appb-000108
n b为窄带SRS频域位置索引，n b是根据n SRS确定的。
终端设备确定切换的天线端口索引：
终端设备通过第一参数确定终端设备进行天线切换后天线的天线端口索引(以下简称第一天线端口索引)。第一参数可表示为n SRS_AS，该参数的名称不做限定，举例来说，该参数称为SRS天线切换传输计数。
一种可选的实施方式是：根据第五配置信息指示终端设备的天线切换模式的不同，终端设备确定第一天线端口索引的方式也不同，当第五配置信息为指示1T4R模式的参数，且置为开启时，选择1T4R模式；当第五配置信息为指示2T4R模式的参数，且置为开启时，选择2T4R模式；否则选择1T2R模式。下面以n SRS_AS为例表示第一参数，以a(n SRS_AS)为例表示第一天线端口索引，根据不同的天线切换模式，确定第一天线端口索引的具体方式如下：
第一种情形，1T4R模式：
该模式下，
Figure PCTCN2020088032-appb-000109
若不使能跳频传输SRS(b hop≥B SRS)，则第一天线端口索引a(n SRS_AS)为：
a(n SRS_AS)＝n SRS_AS mod 4       (2)
若使能跳频传输SRS(b hop<B SRS)，则第一天线端口索引为：
Figure PCTCN2020088032-appb-000110
其中，n SRS_AS为第一参数；K为频域上分成的份数由所述第一配置信息和第二配置信息获得，为正整数；β为一个取0或1的参数，当SRS信号带宽在第二级带宽分成2份且在第三级带宽分成两份时，β取1，否则取0。
第二种情形，2T4R模式：
首先，需要强调的是，该模式下，由于有两根天线用于发送SRS，因此配置了Λ个 终端设备天线对，其中，Λ＝{2或3}。另外该模式下，
Figure PCTCN2020088032-appb-000111
若不使能跳频传输SRS(b hop≥B SRS)，则第一天线端口索引为：
a(n SRS_AS)＝n SRS_AS modΛ      (4)
若使能跳频传输SRS(b hop<B SRS)，则第一天线端口索引为：
Figure PCTCN2020088032-appb-000112
其中，n SRS_AS为第一参数；K为频域上分成的份数由所述第一配置信息和第二配置信息获得，为正整数；β为一个取0或1的参数，当SRS信号带宽在第二级带宽分成2份且在第三级带宽分成两份时，β取1，否则取0。
第三种情形，1T2R模式：
该模式下，
Figure PCTCN2020088032-appb-000113
若不使能跳频传输SRS(b hop≥B SRS)，则第一天线端口索引为：
a(n SRS_AS)＝n SRS_AS mod 2     (6)
若使能跳频传输SRS(b hop<B SRS)，则第一天线端口索引为：
Figure PCTCN2020088032-appb-000114
其中，n SRS_AS为第一参数；K为频域上分成的份数由所述第一配置信息和第二配置信息获得，为正整数；β为预设值，举例来说β为一个取0或1的参数，当SRS信号带宽在第二级带宽分成2份且在第三级带宽分成两份时，β取1，否则取0。
在另外一种可能的实现方式中，终端设备获取第五配置信息；第五配置信息用于指示终端设备终端设备支持的天线模式；若第五配置信息指示的所述天线模式为1T4R，且当终端设备采用跳频方式传输SRS时，针对SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
Figure PCTCN2020088032-appb-000115
若第五配置信息指示的所述天线模式为1T2R，且当终端设备采用跳频方式传输SRS时，针对SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
Figure PCTCN2020088032-appb-000116
若第五配置信息指示的天线模式为2T4R，且终端设备采用跳频方式传输SRS时，针对SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
Figure PCTCN2020088032-appb-000117
其中Λ表示终端设备用于传输SRS的天线对数。Λ的取值为2或3：当Λ＝2时，天线端口对为{2a(n SRS),2a(n SRS)+1}；当Λ＝3时，表示天线端口对为{0,a(n SRS)+1}。
下面以1T2R模式举例说明步骤303的过程,上行带宽
Figure PCTCN2020088032-appb-000118
配置C SRS＝0,B SRS＝1，m SRS,1＝12，SRS信号带宽在第二级带宽分成的份数为N 1＝3，传输梳齿偏移
Figure PCTCN2020088032-appb-000119
配置频域位置n RRC＝0，配置跳频带宽b hop＝0满足b hop<B SRS，使能跳频，重复因子R＝2，SRS跳频与天线切换同时配置，保护间隔Y＝1。如图5所示，为上述例子下，终端设备传输SRS的示意图，其中Tx0、Tx1为天线。由图5可知，l取0～5时，终端设备采用跳频的方式传输SRS，根据1T2R模式下第一天线端口索引的计算公式，终端设备用同一根天线Tx0传输SRS符号；其中，l为一个子帧中SRS符号的序号。
在跳频传输SRS的过程中，会出现一个子帧内未完成全部跳频、天线切换的情况。当跳频和/或天线切换在同一子帧被配置时，若配置的子帧内SRS符号数不足以完成全部跳频和/或天线切换时，为了完成跳频和/或天线切换，需要在后续子帧上完成剩下的跳频和/或天线切换。然而，在后续子帧上接着传输SRS符号时，传输计数n SRS会初始化为0，这样会导致在后续子帧上完成的跳频和/或天线切换与所述前面的子帧完成结果的完全一样，即仍然在一个子帧内完不成全部跳频以及天线切换。如图6所示，两个子帧上都是对天线Tx0和Tx1进行了传输SRS符号。
为解决跳频传输SRS的过程中，一个子帧内未完成全部跳频、天线切换的问题，本申请实施例提供如下三种方法：
第一种方法，在无线资源控制(radio resource control，RRC)信令中增加第一指示信息，第一指示信息用于指示n SRS是否连续计数。第一指示信息可以在RRC信令中携带，也可以在DCI中携带，下面分别进行描述。
第一种方法的第一种情况，第一指示信息为在RRC信令中携带，对在RRC信令中第一指示信息的名称不做限定，例如子帧间连续(SRS-InterSubframe-Successive)：
举例来说，当第一指示信息置为“开启(on)”时，指示终端设备存储触发的未完成SRS天线切换的非周期性传输SRS符号的最后一个n SRS值；并且，在下一个子帧继续非周期性传输SRS符号时，n SRS在此基础上继续累计增加。
当第一指示信息置为“关闭(off)”时，则无论此次非周期性传输SRS符号是否完成跳频或天线切换，在下一次触发非周期性SRS传输时n SRS均恢复为0。
第一种方法的第二种情况，在DCI信令中增加第一指示信息，终端设备根据第一指示信息，按照下面两种行为之一进行：
行为一：指示终端设备存储触发的未完成SRS天线切换的非周期性传输SRS符号的最后一个n SRS值；在下一个子帧继续非周期性传输SRS符号时，n SRS在此基础上继续累计增加。
行为二：无论此次非周期性传输SRS符号是否完成跳频或天线切换，在下一次触发非周期性传输SRS符号时n SRS均恢复为0。
第二种方法，在RRC信令或DCI信令中增加第二指示信息，第二指示信息用于指示n SRS是否连续计数，增加高层参数多个天线端口集合
Figure PCTCN2020088032-appb-000120
举例来说，p set1＝{0,1}，p set2＝{0,1,2}等。该方法包括以下三步：
第一步：网络设备根据终端设备上报的能力信息，选择在本次非周期性传输SRS符号中天线端口集合p set。
第二步：终端设备进行非周期性传输SRS符号的天线切换时，满足天线端口p∈p set。
第三步：通过触发多次非周期性传输SRS符号，并且每次传输SRS符号选取不同的天线端口集合来实现所有天线的重复、跳频和天线切换。
第三种方法、采用多重射击(multi-shot)的方式，触发一次，完成全部传输OFDM符号后自行结束，包括以下两步：
第一步：网络设备给终端设备配置传输的SRS符号数目。
第二步：网络设备通过DCI信令或媒体访问控制(media access control,MAC)控制元素(control element，CE)信令触发或激活终端设备传输SRS符号，并进行重复、跳频、天线切换。
当终端设备完成全部天线的重复和跳频之后，传输SRS符号结束。与NR中半静态的SRS传输不同之处在于：不需要再次使用MAC CE来终止SRS符号的传输。
根据上述实施例，本申请实施例提供一种信号传输方法，可以表述为：
终端获取第一信息，所述第一信息用于指示SRS天线切换；
所述终端根据所述第一信息进行SRS天线切换；
其中，所述SRS天线切换满足：
Figure PCTCN2020088032-appb-000121
或者，
Figure PCTCN2020088032-appb-000122
或者，
Figure PCTCN2020088032-appb-000123
其中，a(n SRS)表示第l个SRS符号上发送SRS所使用天线的天线端口索引，
Figure PCTCN2020088032-appb-000124
Figure PCTCN2020088032-appb-000125
R表示所述终端设备发送SRS时进行重复的重复次数，l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，
Figure PCTCN2020088032-appb-000126
表示SRS的符号数(例如可以通过SRS的起始符号和SRS的传输持续时间获得，可选的，SRS的传输持续时间不包括保护符号guard symbol)，m SRS,b表示第一UE级带宽，b＝0,1,2,3，
Figure PCTCN2020088032-appb-000127
表示第二UE级带宽，B SRS∈{0,1,2,3}。其中b可以是网络设备配置给终端的。可选的，b也可以表示为b hop,由网络设备配置给终端。例如：网络设备通过RRC信令将b或者b hop,发送给终端。Λ表示终端设备用于传输所述SRS的天线对数。例如，Λ的取值可以是2，或者3。作为一种可选的理解，Λ的取值为2时，对应的天线对数为{2a(n SRS),2a(n SRS)+1}
；作为另一种可选的理解，Λ的取值为3时，对应的天线对数为{0,a(n SRS)+1}。作为一种可选的设计，当终端设备的天线模式为1T4R时，可以采用
Figure PCTCN2020088032-appb-000128
Figure PCTCN2020088032-appb-000129
作为一种可选的设计，当终端设备的天线模式为1T2R时，可以采用
Figure PCTCN2020088032-appb-000130
作为一种可选的设计，当终端设备的天线模式为2T4R时，可以采用
Figure PCTCN2020088032-appb-000131
其中，终端设备的天线模式可以由网络设备配置。例如，网络设备通过高层RRC信令将终端设备的天线模式配置为1T2R，1T4R，或者2T4R。
其中，终端进行SRS天线切换可以理解为终端确定发送SRS的天线端口。
其他可选的设计和说明，可以参考上述实施例的相关内容，此处不做赘述。
根据上述实施例，从网络设备侧，本申请实施例提供一种信号传输方法可以表述为：
网络设备向终端设备发送第一信息，所述第一信息用于指示所述终端设备进行SRS天线切换。
其中，所述SRS天线切换满足：
Figure PCTCN2020088032-appb-000132
或者，
Figure PCTCN2020088032-appb-000133
或者，
Figure PCTCN2020088032-appb-000134
可选的，网络设备可以生成该第一信息。可选的，网络设备可以基于上述公式所指示的终端的天线端口进行SRS的接收。
关于上述公式，以及可选的设计等内容可以参考以上实施例的说明。
为了实现本申请实施例的方法，本申请还提供了一种终端装置，用于：
获取第一信息，所述第一信息用于指示SRS天线切换；
根据所述第一信息进行SRS天线切换；
其中，所述SRS天线切换满足：
Figure PCTCN2020088032-appb-000135
或者，
Figure PCTCN2020088032-appb-000136
或者，
Figure PCTCN2020088032-appb-000137
其中，a(n SRS)表示第l个SRS符号上发送SRS所使用天线的天线端口索引，
Figure PCTCN2020088032-appb-000138
Figure PCTCN2020088032-appb-000139
R表示所述终端设备发送SRS时进行重复的重复次数，l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，
Figure PCTCN2020088032-appb-000140
表示SRS的符号数(例如可以通过SRS的起始符号和SRS的传输持续时间获得，可选的，SRS的传输持续时间不包括保护符号guard symbol)，m SRS,b表示第一UE级带宽，b＝0,1,2,3，
Figure PCTCN2020088032-appb-000141
表示第二UE级带宽，B SRS∈{0,1,2,3}。其中b可以是网络设备配置给终端的。可选的，b也可以表示为b hop,由网络设备配置给终端。例如：网络设备通过RRC信令将b或者b hop,发送给终端。Λ表示终端设备用于传输所述SRS的天线对数。例如，Λ的取值可以是2，或者3。作为一种可选的理解，Λ的取值为2时，对应的天线对数为{2a(n SRS),2a(n SRS)+1}
；作为另一种可选的理解，Λ的取值为3时，对应的天线对数为{0,a(n SRS)+1}。作为一种可选的设计，当终端设备的天线模式为1T4R时，可以采用
Figure PCTCN2020088032-appb-000142
Figure PCTCN2020088032-appb-000143
作为一种可选的设计，当终端设备的天线模式为1T2R时，可以采用
Figure PCTCN2020088032-appb-000144
作为一种可选的设计，当终端设备的天线模式为2T4R时，可以采用
Figure PCTCN2020088032-appb-000145
其中，终端设备的天线模式可以由网络设备配置。例如，网络设备通过高层RRC信令将终端设备的天线模式配置为1T2R，1T4R，或者2T4R。
其他可选的设计和说明，可以参考上述实施例的相关内容，此处不做赘述。
为了实现本申请实施例的方法，本申请还提供了一种网络装置，用于：
向终端设备发送第一信息，所述第一信息用于指示所述终端设备进行SRS天线切换。
其中，所述SRS天线切换满足：
Figure PCTCN2020088032-appb-000146
或者，
Figure PCTCN2020088032-appb-000147
或者，
Figure PCTCN2020088032-appb-000148
关于上述公式，以及可选的设计等内容可以参考以上实施例的说明。
上述终端装置和网络装置的结构和部件可以参考如下实施例的说明。
如图7所示，为本申请实施例提供一种通信装置的结构示意图。该通信装置可以用于执行上述各方法实施例中终端设备的动作，该通信装置700包括：收发单元701和处理单元702。
该通信装置700执行图3所示流程中终端设备的动作时：
收发单元701，用于获取第一配置信息和第二配置信息；所述第一配置信息用于指示SRS的跳频带宽配置；所述第二配置信息用于指示探测参考信号SRS带宽；
处理单元702，用于根据所述第一配置信息和所述第二配置信息确定跳频传输第一SRS时，在传输所述第一SRS的过程中，每在分配给终端设备的整个带宽中将所述整个带宽跳频传输完一次，切换一次发送所述第一SRS的天线。
一种可能的实现方式中，所述处理单元702具体用于：每在分配给终端设备的整个带宽中跳频传输X*R个SRS符号，切换一次发送所述第一SRS的天线；X为在分配给所述整个带宽中跳频传输将所述整个带宽跳频传输时，初次跳频传输的符号数；R为SRS符号重复因子。
一种可能的实现方式中，所述收发单元701还用于：获取第三配置信息，第四配置信息；所述第三配置信息用于指示一个子帧内传输的探测参考信号SRS符号数量；所述第四配置信息用于指示SRS符号重复因子；所述处理单元702还用于：根据所述第三配置信息以及所述第四配置信息确定第一参数；针对所述第一SRS的第l个SRS符号，根据所述第一参数确定所述第l个SRS符号的天线端口索引；l为自然数。
一种可能的实现方式中，所述处理单元702还用于：针对所述第l个SRS符号，通过第一天线，传输所述第l个SRS符号；所述第一天线为所述第l个SRS符号的天线端口索引对应的天线。
一种可能的实现方式中，所述收发单元701还用于：接收来自网络设备的第一指示信息；所述第一指示信息用于指示所述第一参数是否连续计数；当所述第一指示信息指示所述第一参数连续计数时，在第一子帧中传输所述第一SRS时，根据所述第三配置信息以及第四配置信息确定第一参数，包括：根据以下公式确定所述第一参数：
Figure PCTCN2020088032-appb-000149
其中，n SRS_AS为所述第一参数，
Figure PCTCN2020088032-appb-000150
λ为根据所述终端设备当前所使用的天线模式确定的参数，R表示所述第四配置信息，l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，
Figure PCTCN2020088032-appb-000151
为所述第三配置信息，
Figure PCTCN2020088032-appb-000152
表示向下取整运算，Δ表示所述终端设备在第二子帧中发送第二SRS的最后一个符号时，所述第一参数的取值，所述第二子帧为所述终端设备在发送所述第一子帧之前发送的最后一个子帧。
一种可能的实现方式中，所述处理单元702具体用于：根据以下公式确定所述第一参数：
Figure PCTCN2020088032-appb-000153
其中，n SRS_AS为所述第一参数，
Figure PCTCN2020088032-appb-000154
λ为根据所述终端设备当前所使用的天线模式确定的参数，R表示所述第四配置信息，l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，
Figure PCTCN2020088032-appb-000155
为所述第三配置信息，
Figure PCTCN2020088032-appb-000156
表示向下取整运算。
该通信装置700执行图3所示流程中终端设备的动作时：
收发单元701，用于获取第一SRS的第一配置信息、第二配置信息、第五配置信息和第四配置信息，其中，所述第一配置信息和第二配置信息所述用于确定所述第一SRS进行跳频的配置信息，所述第五配置信息用于确定第一SRS进行天线切换的配置信息，所述第四配置信息用于指示第一SRS所占用的时域符号的配置信息；
处理单元702，用于根据所述第一配置信息、所述第二配置信息、所述第五配置信息和所述第四配置信息，确定发送第一SRS时，先完成SRS跳频，再进行SRS天线切换。
一种可能的实现方式中，收发单元701还用于：获取第三配置信息和第八配置信息；所述第三配置信息用于指示所述第一SRS占用的时域符号在正常子帧上，包括除最后一个OFDM符号以外的其它至少一个OFDM符号；所述第八配置信息用于指示所述终端设备发送所述第一SRS的小区；所述第一配置信息用于指示SRS的跳频带宽配置，所述第二配置信息用于指示终端设备级SRS带宽配置；当所述第一配置信息小于所述第二配置信息时，所述终端设备发送所述第一SRS时进行跳频；所述第五配置信息指示所述终端设备使能天线切换时，所述终端设备发送所述第一SRS时进行天线切换。
一种可能的实现方式中，所述第四配置信息用于指示所述终端设备发送SRS时进行重复的重复次数R；所述处理单元702还用于：根据所述第一配置信息，所述第二配置信息、所述第三配置信息、所述第四配置信息和所述第五配置信息，确定发送所述第一SRS时，先完成SRS重复，再完成SRS跳频，最后进行SRS天线切换。
一种可能的实现方式中，所述处理单元702还用于：根据所述第三配置信息和所述第四配置信息，确定第一参数；根据所述第一参数，确定在第l个SRS符号上发送SRS所使用天线的天线端口索引，l为自然数。
一种可能的实现方式中，所述收发单元701还用于：接收来自所述网络设备的第一指示信息；所述第一指示信息用于指示所述第一参数是否连续计数；当所述第一指示信息指示所述第一参数连续计数时，所述收发单元701在第一子帧中传输所述第一SRS时，所述处理单元702还用于：
根据以下公式确定所述第一参数：
Figure PCTCN2020088032-appb-000157
其中，n SRS_AS为所述第一参数，
Figure PCTCN2020088032-appb-000158
λ为根据所述终端设备当前所使用的天线模式确定的参数，R表示所述终端设备发送SRS时进行重复的重复次数，l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，
Figure PCTCN2020088032-appb-000159
为正常子帧内传输SRS所占用的OFDM符号总数量，
Figure PCTCN2020088032-appb-000160
表示向下取整运算，Δ表示所述终端设备在第二子帧中发送第二SRS的最后一个符号时，所述第一参数的取值，所述第二子帧为所述终端设备在发送所述第一子帧之前发送的最后一个子帧。
一种可能的实现方式中，所述处理单元702还用于：
根据以下公式确定所述第一参数：
Figure PCTCN2020088032-appb-000161
其中，n SRS_AS为所述第一参数，
Figure PCTCN2020088032-appb-000162
λ为根据所述终端设备当前所使用的天线模式确定的参数，R表示所述终端设备发送SRS时进行重复的重复次数，l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，
Figure PCTCN2020088032-appb-000163
为正常子帧内传输SRS所占用的OFDM符号总数量，
Figure PCTCN2020088032-appb-000164
表示向下取整运算。
一种可能的实现方式中，所述终端设备按照以下方式获取第一跳频次数n hop：
Figure PCTCN2020088032-appb-000165
其中，n hop为所述第一跳频次数，m SRS,0表示配置的SRS小区级带宽，
Figure PCTCN2020088032-appb-000166
表示配置的SRS终端设备级带宽；
或者，所述终端设备接收来自所述网络设备的第一跳频次数n hop；
或者，所述终端设备按照以下方式，根据所述第三配置信息、所述第四配置信息和所述第五配置信息，确定所述第一跳频次数：
所述第一跳频次数
Figure PCTCN2020088032-appb-000167
λ为由所述第五配置信息确定的参数：当所述第二配置信息指示1T4R天线切换使能时，λ＝4；当所述第二配置信息指示2T4R或1T2R天线切换使能时，λ＝2；
Figure PCTCN2020088032-appb-000168
为所述第三配置信息；R为所述第四配置信息。
一种可能的实现方式中，所述处理单元702按照以下方式，根据所述第一跳频次数计算所述第一参数：
Figure PCTCN2020088032-appb-000169
其中，n SRS_AS为所述第一参数，
Figure PCTCN2020088032-appb-000170
R表示所述终端设备发送SRS时进行重复的重复次数，l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，n hop表示所述第一跳频次数，
Figure PCTCN2020088032-appb-000171
表示向下取整运算；
根据所述第一参数，确定在第l个SRS符号上发送SRS所使用天线的天线端口索引，l为自然数。
另外一种可能的实现方式中，所述处理单元702还用于：终端设备按照以下方式获取第一跳频次数n hop：
Figure PCTCN2020088032-appb-000172
其中，n hop为所述第一跳频次数，m SRS,b表示第一SRS终端设备级带宽，b＝0,1,2,3，
Figure PCTCN2020088032-appb-000173
表示第二SRS终端设备级带宽，B SRS∈{0,1,2,3}。其中b可以是所述网络设备高层参数配置的,可选的，b也可以表示为b hop,由高层RRC信令配置。
一种可能的实现方式中，所述方法还包括：所述终端设备接收来自所述网络设备的第一跳频次数n hop。
一种可能的实现方式中，所述方法还包括：所述终端设备按照以下方式，根据所述第三配置信息、所述第四配置信息和所述第五配置信息，确定所述第一跳频次数：所述第一跳频次数
Figure PCTCN2020088032-appb-000174
或
Figure PCTCN2020088032-appb-000175
其中
Figure PCTCN2020088032-appb-000176
和
Figure PCTCN2020088032-appb-000177
分别表示向上和向下取整运算。
Figure PCTCN2020088032-appb-000178
为所述第三配置信息；R为所述第四配置信息。λ为由所述第五配置信息确定的参数，例如，当所述第二配置信息指示1T4R天线切换使能时，λ＝4；当所述第二配置信息指示2T4R或1T2R天线切换使能时，λ＝2，或者λ根据UE上报的天线能力信息确定，
一种可能的实现方式中，所述方法还包括：所述终端设备按照以下方式，根据所述第一跳频次数计算所述第一参数：
Figure PCTCN2020088032-appb-000179
或者，
Figure PCTCN2020088032-appb-000180
其中，n SRS_AS为所述第一参数，
Figure PCTCN2020088032-appb-000181
R表示所述终端设备发送SRS时进行重复的重复次数，l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，n hop表示所述第一跳频次数，
Figure PCTCN2020088032-appb-000182
和
Figure PCTCN2020088032-appb-000183
分别表示向上和向下取整运算；所述终端设备根据所述第一参数，确定在第l个SRS符号上发送SRS所使用天线的天线端口索引，l为自然数。
一种可能的实现方式中，所述处理单元702还用于：
获取第五配置信息；所述第五配置信息用于指示所述终端设备终端设备支持的天线模式；若所述第五配置信息指示的所述天线模式为1T4R，且当所述终端设备采用跳频方式传输所述第一SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
Figure PCTCN2020088032-appb-000184
其中，a(n SRS_AS)表示所述第l个符号的天线端口索引，n SRS_AS为所述第一参数；K为频域上分成的份数由所述第一配置信息和第二配置信息获得，K为正整数；β为预设值；
或者，若所述第五配置信息指示的所述天线模式为1T4R，且当所述终端设备不采用跳频方式传输所述SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
a(n SRS_AS)＝n SRS_AS mod 4
其中，a(n SRS_AS)表示所述第l个符号的天线端口索引，n SRS_AS为所述第一参数。
一种可能的实现方式中，所述处理单元702还用于：
若所述第五配置信息指示的所述天线模式为2T4R，且当所述终端设备采用跳频方式传输所述第一SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
Figure PCTCN2020088032-appb-000185
其中，a(n SRS_AS)表示所述第l个符号的天线端口索引，Λ表示终端设备用于传输所述第一SRS的天线对数，n SRS_AS为所述第一参数；K为频域上分成的份数由所述第一配置信息和第二配置信息获得，K为正整数；β为预设值；
或者，若所述第五配置信息指示的所述天线模式为2T4R，且当所述终端设备不采用跳频方式传输所述SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
a(n SRS_AS)＝n SRS_AS modΛ
其中，a(n SRS_AS)表示所述第l个符号的天线端口索引，n SRS_AS为所述第一参数，Λ表示终端设备用于传输所述第一SRS的天线对数。
一种可能的实现方式中，所述处理单元702还用于：若所述第五配置信息指示的所述天线模式为1T2R，且当所述终端设备采用跳频方式传输所述第一SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
Figure PCTCN2020088032-appb-000186
其中，a(n SRS_AS)表示所述第l个符号的天线端口索引；n SRS_AS为所述第一参数；K为频域上分成的份数由所述第一配置信息和第二配置信息获得，K为正整数；β为预设值；
或者，若所述第五配置信息指示的所述天线模式为1T2R，且当所述终端设备不采用跳频方式传输所述SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
a(n SRS_AS)＝n SRS_AS mod 2
其中，a(n SRS_AS)表示所述第l个符号的天线端口索引，n SRS_AS为所述第一参数。
一种可能的实现方式中，所述收发单元701还用于：所述终端设备获取第六配置信息，所述第六配置信息用于指示一个子帧内，所述第一SRS包括的所有SRS符号中每个保护间隔GP符号的数量、每个GP符号位置以及每个GP符号的长度；或者，所述终端设备获取第七配置信息，所述第七配置信息为比特位图，所述比特位图中的每个比特位于一个子帧中的一个符号唯一对应；所述比特位图中的一个比特的取值为第一取值时，表示该比特对应的符号为SRS符号。
一种可能的实现方式中，所述收发单元701还用于：所述终端设备接收来自所述网络设备的传输功率控制TPC；所述处理单元702还用于：当所述第一SRS为传统SRS时，根据所述TPC确定所述第一SRS的传输功率；或者，当所述第一SRS为附加SRS时，根据所述TPC确定所述第一SRS的传输功率；或者，当所述第一SRS为传统SRS或者附加SRS时，根据所述TPC确定所述第一SRS的传输功率；采用所述传输功率传输所述第一SRS。
如图8所示，为本申请实施例提供的一种通信装置结构示意图。图8所示的通信装置可以为图7所示的通信装置的一种硬件电路的实现方式。该通信装置可适用于图3所示出的流程图中，执行上述方法实施例中终端设备的功能。为了便于说明，图8仅示出了通信装置的主要部件。可选的，该通信装置可以是终端设备，也可以是终端设备中的装置，如芯片或者芯片系统，其中所述芯片系统包含至少一个芯片，所述芯片系统还可以包括其他电路结构和/或分立器件。可选的，以该通信装置为终端设备为例，如图8所示，通信装置800包括处理器801、存储器802、收发机803、天线804以及输入输出装置805。处理器801主要用于对通信协议以及通信数据进行处理，以及对整个无线通信装置进行控制，执行软件程序，处理软件程序的数据，例如用于支持无线通信装置执行上述方法实施例中所描述的动作等。存储器802主要用于存储软件程序和数据。收发器803主要用于基带信号与射频信号的转换以及对射频信号的处理。天线804主要用 于收发电磁波形式的射频信号。输入输出装置805，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。
图8所示的通信装置800所具有的功能，具体可以参考图3所示的流程中的描述，在此不再赘述。
如图9所示，为本申请实施例提供的一种通信装置结构示意图。
该通信装置900执行图3所示流程中网络设备的动作时：
收发单元，用于向终端设备发送第一配置信息和第二配置信息；所述第一配置信息用于指示SRS的跳频带宽配置；所述第二配置信息用于指示终端设备级SRS带宽配置；接收来自终端设备的第一SRS；在所述终端设备根据所述第一配置信息和所述第二配置信息跳频传输所述第一SRS时，每在使用跳频对整个小区级SRS带宽完成一次探测时，切换一次发送所述第一SRS的天线。
一种可能的实现方式中，所述收发单元还用于：向所述终端设备发送传输功率控制TPC；所述TPC用于指示：所述第一SRS与所述终端设备待发送的第二SRS之间，至少包括一个保护间隔GP符号；当所述第一SRS为传统SRS时，所述第二SRS为附加SRS；或者，当所述第一SRS为附加SRS时，所述第二SRS为传统SRS。
一种可能的实现方式中，所述收发单元还用于：向所述终端设备发送传输功率控制TPC；所述TPC用于指示：当所述第一SRS的第一SRS符号与所述终端设备待发送的第三SRS中的第三SRS符号相邻时，所述终端设备传输所述第一SRS与所述第三SRS时的带宽相同；当所述第一SRS为传统SRS时，所述第三SRS为附加SRS；或者，当所述第一SRS为附加SRS时，所述第三SRS为传统SRS。
如图10所示，为本申请实施例提供的一种通信装置结构示意图。图10所示的通信装置可以为图9所示的通信装置的一种硬件电路的实现方式。该通信装置可适用于图3所示出的流程图中，执行上述方法实施例中网络设备的功能。为了便于说明，图10仅示出了通信装置的主要部件。可选的，该通信装置可以是网络设备，也可以是网络设备中的装置，如芯片或者芯片系统，其中所述芯片系统包含至少一个芯片，所述芯片系统还可以包括其他电路结构和/或分立器件。可选的，以该通信装置为网络设备为例，如图8所示，通信装置1000包括处理器1001、存储器1002、收发器1003、天线1004等。
图10所示的通信装置1000所具有的功能，具体可以参考图3所示的流程中的描述，在此不再赘述。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (30)

  1. 一种信号传输方法，其特征在于，包括：
    终端设备获取第一配置信息和第二配置信息；所述第一配置信息用于指示探测参考信号SRS的跳频带宽配置；所述第二配置信息用于指示终端设备级SRS带宽配置；
    所述终端设备根据所述第一配置信息和所述第二配置信息确定跳频传输第一SRS时，在传输所述第一SRS的过程中，每在使用跳频对整个小区级SRS带宽完成一次探测时，切换一次发送所述第一SRS的天线。
  2. 如权利要求1所述的方法，其特征在于，所述每在使用跳频对整个小区级SRS带宽完成一次探测时，切换一次发送所述第一SRS的天线，包括：
    每在分配给终端设备的整个带宽中跳频传输X*R个SRS符号，切换一次发送所述第一SRS的天线；X为在使用所述第一SRS通过跳频来完成对整个小区级SRS带宽探测时，所需要的最小的SRS符号数；R为SRS符号重复因子。
  3. 如权利要求1所述的方法，其特征在于，所述方法还包括：
    所述终端设备获取第三配置信息，第四配置信息；所述第三配置信息用于指示一个子帧内传输的SRS符号数量；所述第四配置信息用于指示SRS符号重复因子；
    所述终端设备根据所述第三配置信息以及所述第四配置信息确定第一参数；
    针对所述第一SRS的第l个SRS符号，所述终端设备根据所述第一参数确定所述第l个SRS符号的天线端口索引；l为自然数。
  4. 如权利要求3所述的方法，其特征在于，所述方法还包括：
    针对所述第l个SRS符号，所述终端设备通过第一天线，传输所述第l个SRS符号；所述第一天线为所述第l个SRS符号的天线端口索引对应的天线。
  5. 如权利要求3所述的方法，其特征在于，所述终端设备根据所述第三配置信息以及第四配置信息确定第一参数，包括：
    所述终端设备根据以下公式确定所述第一参数：
    Figure PCTCN2020088032-appb-100001
    其中，n SRS_AS为所述第一参数，λ为根据所述终端设备当前所使用的天线模式确定的参数，R表示所述第四配置信息，
    Figure PCTCN2020088032-appb-100002
    l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，
    Figure PCTCN2020088032-appb-100003
    为所述第三配置信息，
    Figure PCTCN2020088032-appb-100004
    表示向下取整运算。
  6. 如权利要求3所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收来自所述网络设备的第一指示信息；所述第一指示信息用于指示所述第一参数是否连续计数；
    当所述第一指示信息指示所述第一参数连续计数时，所述终端设备在第一子帧中传输所述第一SRS时，所述终端设备根据所述第三配置信息以及第四配置信息确定第一参数，包括：
    所述终端设备根据以下公式确定所述第一参数：
    Figure PCTCN2020088032-appb-100005
    其中，n SRS_AS为所述第一参数，λ为根据所述终端设备当前所使用的天线模式确定的参数，R表示所述第四配置信息，
    Figure PCTCN2020088032-appb-100006
    l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，
    Figure PCTCN2020088032-appb-100007
    为所述第三配置信息，
    Figure PCTCN2020088032-appb-100008
    表示向下取整运算，Δ表示所述终端设备在第二子帧中发送第二SRS的最后一个符号时，所述第一参数的取值，所述第二子帧为所述终端设备在发送所述第一子帧之前发送的最后一个子帧。
  7. 一种信号传输方法，其特征在于，包括：
    终端设备获取第一SRS的第一配置信息、第二配置信息、所述第三配置信息、第四配置信息和第五配置信息，其中，所述第一配置信息用于指示探测参考信号SRS的跳频带宽配置；所述第二配置信息用于指示终端设备级SRS带宽配置，所述第三配置信息用于指示在正常子帧中所述第一SRS占用的时域符号总数量；所述第四配置信息用于指示SRS符号重复因子；所述第五配置信息用于所述终端设备确定第一SRS进行天线切换的配置信息；
    所述终端设备根据所述第一配置信息、所述第二配置信息、所述第三配置信息、所述第四配置信息和所述第五配置信息，确定发送第一SRS时，先完成SRS跳频，再进行SRS天线切换。
  8. 根据权利要求7所述的方法，其特征在于，所述方法还包括：
    所述终端设备获取第八配置信息；所述第八配置信息用于指示小区级SRS带宽配置；
    当所述第一配置信息小于所述第二配置信息时，所述终端设备发送所述第一SRS时进行跳频。
  9. 根据权利要求7所述的方法，其特征在于，所述方法还包括：
    所述第四配置信息用于指示所述终端设备发送SRS时进行重复的重复次数R；
    所述终端设备根据所述第一配置信息，所述第二配置信息、所述第三配置信息、所述第四配置信息和所述第五配置信息，确定发送所述第一SRS时，先完成SRS重复，再完成SRS跳频，最后进行SRS天线切换。
  10. 如权利要求7-9任一所述的方法，其特征在于，所述方法还包括：
    所述终端设备根据所述第三配置信息和所述第四配置信息，确定第一参数；
    所述终端设备根据所述第一参数，确定在第l个SRS符号上发送SRS所使用天线的天线端口索引，l为自然数。
  11. 如权利要求10所述的方法，其特征在于，所述终端设备根据所述
    Figure PCTCN2020088032-appb-100009
    和所述R，确定第一参数，包括：
    所述终端设备根据以下公式确定所述第一参数：
    Figure PCTCN2020088032-appb-100010
    其中，n SRS_AS为所述第一参数，
    Figure PCTCN2020088032-appb-100011
    λ为根据所述终端设备当前所使用的天线模式确定的参数，R表示所述终端设备发送SRS时进行重复的重复次数，l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，
    Figure PCTCN2020088032-appb-100012
    为正常子帧内传输SRS所占用的OFDM符号总数量，
    Figure PCTCN2020088032-appb-100013
    表示向下取整运算。
  12. 如权利要求10所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收来自所述网络设备的第一指示信息；所述第一指示信息用于指示所述第一参数是否连续计数；
    当所述第一指示信息指示所述第一参数连续计数时，所述终端设备在第一子帧中传输所述第一SRS时，所述终端设备根据所述第三配置信息和所述第四配置信息，确定第一参数，包括：
    所述终端设备根据以下公式确定所述第一参数：
    Figure PCTCN2020088032-appb-100014
    其中，n SRS_AS为所述第一参数，
    Figure PCTCN2020088032-appb-100015
    λ为根据所述终端设备当前所使用的天线模式确定的参数，R表示所述终端设备发送SRS时进行重复的重复次数，l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，
    Figure PCTCN2020088032-appb-100016
    为正常子帧内传输SRS所占用的OFDM符号总数量，
    Figure PCTCN2020088032-appb-100017
    表示向下取整运算，Δ表示所述终端设备在第二子帧中发送第二SRS的最后一个符号时，所述第一参数的取值，所述第二子帧为所述终端设备在发送所述第一子帧之前发送的最后一个子帧。
  13. 根据权利要求7-9任一所述的方法，其特征在于，所述方法还包括：
    所述终端设备按照以下方式获取第一跳频次数n hop：
    Figure PCTCN2020088032-appb-100018
    其中，n hop为所述第一跳频次数，m SRS,0表示配置的小区级SRS带宽，
    Figure PCTCN2020088032-appb-100019
    表示配置的终端设备级带宽；
    或者，所述终端设备接收来自所述网络设备的第一跳频次数n hop；
    或者，所述终端设备按照以下方式，根据所述第三配置信息、所述第四配置信息和所述第五配置信息，确定所述第一跳频次数：
    所述第一跳频次数
    Figure PCTCN2020088032-appb-100020
    λ为由所述第五配置信息确定的参数：当所述第二配置信息指示1T4R天线切换使能时，λ＝4；当所述第二配置信息指示2T4R或1T2R天线切换使能时，λ＝2；
    Figure PCTCN2020088032-appb-100021
    为所述第三配置信息；R为所述第四配置信息。
  14. 如权利要求13所述的方法，其特征在于，所述方法还包括：
    所述终端设备按照以下方式，根据所述第一跳频次数计算所述第一参数：
    Figure PCTCN2020088032-appb-100022
    其中，n SRS_AS为所述第一参数，
    Figure PCTCN2020088032-appb-100023
    R表示所述终端设备发送SRS时进行重复的重复次数，l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，n hop表示所述第一跳频次数，
    Figure PCTCN2020088032-appb-100024
    表示向下取整运算；
    所述终端设备根据所述第一参数，确定在第l个SRS符号上发送SRS所使用天线的天线端口索引，l为自然数。
  15. 如权利要求11-12以及14任一所述的方法，其特征在于，所述方法还包括：
    所述终端设备获取第五配置信息；所述第五配置信息用于指示所述终端设备支持的天线模式；
    若所述第五配置信息指示的所述天线模式为1T4R，且当所述终端设备采用跳频方式传输所述第一SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
    Figure PCTCN2020088032-appb-100025
    其中，a(n SRS_AS)表示所述第l个符号的天线端口索引，n SRS_AS为所述第一参数；K由所述第一配置信息和第二配置信息获得，K为正整数；β为预设值；
    或者，若所述第五配置信息指示的所述天线模式为1T4R，且当所述终端设备不采用跳频方式传输所述SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
    a(n SRS_AS)＝n SRS_ASmod 4
    其中，a(n SRS_AS)表示所述第l个符号的天线端口索引，n SRS_AS为所述第一参数。
  16. 如权利要求15所述的方法，其特征在于，所述方法还包括：
    若所述第五配置信息指示的所述天线模式为2T4R，且当所述终端设备采用跳频方式传输所述第一SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
    Figure PCTCN2020088032-appb-100026
    其中，a(n SRS_AS)表示所述第l个符号的天线端口索引，Λ表示终端设备用于传输所述第一SRS的天线对数，n SRS_AS为所述第一参数；K为频域上分成的份数由所述第一配置信息和第二配置信息获得，K为正整数；β为预设值；
    或者，若所述第五配置信息指示的所述天线模式为2T4R，且当所述终端设备不采用跳频方式传输所述SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
    a(n SRS_AS)＝n SRS_ASmod Λ
    其中，a(n SRS_AS)表示所述第l个符号的天线端口索引，n SRS_AS为所述第一参数，Λ表示终端设备用于传输所述第一SRS的天线对数。
  17. 如权利要求15所述的方法，其特征在于，所述方法还包括：
    若所述第五配置信息指示的所述天线模式为1T2R，且当所述终端设备采用跳频方式传输所述第一SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
    Figure PCTCN2020088032-appb-100027
    其中，a(n SRS_AS)表示所述第l个符号的天线端口索引；n SRS_AS为所述第一参数；K由所述第一配置信息和第二配置信息获得，K为正整数；β为预设值；
    或者，若所述第五配置信息指示的所述天线模式为1T2R，且当所述终端设备不采用跳频方式传输所述SRS时，针对所述第一SRS的第l个符号，根据以下方式确定所述第l个符号的天线端口索引：
    a(n SRS_AS)＝n SRS_ASmod 2
    其中，a(n SRS_AS)表示所述第l个符号的天线端口索引，n SRS_AS为所述第一参数。
  18. 如权利要求7-9任一所述的方法，其特征在于，所述方法还包括：
    所述终端设备获取第六配置信息，所述第六配置信息用于指示一个子帧内，所述第一SRS包括的所有SRS符号中每个保护间隔GP符号的数量、每个GP符号位置以及每个GP符号的长度；
    或者，所述终端设备获取第七配置信息，所述第七配置信息为比特位图，所述比特位图中的每个比特位于一个子帧中的一个符号唯一对应；所述比特位图中的一个比特的取值为第一取值时，表示该比特对应的符号为SRS符号。
  19. 如权利要求7-9任一所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收来自所述网络设备的传输功率控制TPC；
    当所述第一SRS为传统SRS时，所述终端设备根据所述TPC确定所述第一SRS的传输功率；
    或者，当所述第一SRS为附加SRS时，所述终端设备根据所述TPC确定所述第一SRS的传输功率；
    或者，当所述第一SRS为传统SRS或者附加SRS时，所述终端设备根据所述TPC确定所述第一SRS的传输功率；
    所述终端设备采用所述传输功率传输所述第一SRS。
  20. 一种信号传输方法，其特征在于，包括：
    网络设备向终端设备发送第一配置信息和第二配置信息；所述第一配置信息用于指示SRS的跳频带宽配置；所述第二配置信息用于指示终端设备级SRS带宽配置；
    所述网络设备接收来自终端设备的第一SRS；在所述终端设备根据所述第一配置信息和所述第二配置信息跳频传输所述第一SRS时，每在使用跳频对整个小区级SRS带宽完成一次探测时，切换一次发送所述第一SRS的天线。
  21. 一种信号传输装置，其特征在于，包括：
    收发单元，用于获取第一配置信息和第二配置信息；所述第一配置信息用于指示SRS的跳频带宽配置；所述第二配置信息用于指示探测参考信号SRS带宽；
    处理单元，用于根据所述第一配置信息和所述第二配置信息确定跳频传输第一SRS时，在传输所述第一SRS的过程中，每在使用跳频对整个小区级SRS带宽完成一次探测时，切换一次发送所述第一SRS的天线。
  22. 如权利要求21所述的装置，其特征在于，所述处理单元具体用于：
    每在分配给终端设备的整个带宽中跳频传输X*R个SRS符号，切换一次发送所述第一SRS的天线；X为在分配给所述整个带宽中跳频传输将所述整个带宽跳频传输时，初次跳频传输的符号数；R为SRS符号重复因子。
  23. 如权利要求21所述的装置，其特征在于，所述收发单元还用于：
    获取第三配置信息，第四配置信息；所述第三配置信息用于指示一个子帧内传输的探测参考信号SRS符号数量；所述第四配置信息用于指示SRS符号重复因子；
    所述处理单元还用于：
    根据所述第三配置信息以及所述第四配置信息确定第一参数；
    针对所述第一SRS的第l个SRS符号，根据所述第一参数确定所述第l个SRS符号的天线端口索引；l为自然数。
  24. 如权利要求23所述的装置，其特征在于，所述处理单元还用于：
    针对所述第l个SRS符号，通过第一天线，传输所述第l个SRS符号；所述第一天线为所述第l个SRS符号的天线端口索引对应的天线。
  25. 如权利要求23所述的装置，其特征在于，所述收发单元还用于：
    接收来自网络设备的第一指示信息；所述第一指示信息用于指示所述第一参数是否连续计数；
    当所述第一指示信息指示所述第一参数连续计数时，在第一子帧中传输所述第一SRS时，根据所述第三配置信息以及第四配置信息确定第一参数，包括：
    根据以下公式确定所述第一参数：
    Figure PCTCN2020088032-appb-100028
    其中，n SRS_AS为所述第一参数，
    Figure PCTCN2020088032-appb-100029
    λ为根据所述终端设备当前所使用的天线模式确定的参数，R表示所述第四配置信息，l表示所述 第一SRS的第l个SRS符号在所述第一SRS中的序号，
    Figure PCTCN2020088032-appb-100030
    为所述第三配置信息，
    Figure PCTCN2020088032-appb-100031
    表示向下取整运算，Δ表示所述终端设备在第二子帧中发送第二SRS的最后一个符号时，所述第一参数的取值，所述第二子帧为所述终端设备在发送所述第一子帧之前发送的最后一个子帧。
  26. 如权利要求23所述的装置，其特征在于，所述处理单元具体用于：
    根据以下公式确定所述第一参数：
    Figure PCTCN2020088032-appb-100032
    其中，n SRS_AS为所述第一参数，
    Figure PCTCN2020088032-appb-100033
    λ为根据所述终端设备当前所使用的天线模式确定的参数，R表示所述第四配置信息，l表示所述第一SRS的第l个SRS符号在所述第一SRS中的序号，
    Figure PCTCN2020088032-appb-100034
    为所述第三配置信息，
    Figure PCTCN2020088032-appb-100035
    表示向下取整运算。
  27. 一种信号传输装置，其特征在于，包括：
    收发单元，用于获取第一SRS的第一配置信息、第二配置信息、第五配置信息和第四配置信息，其中，所述第一配置信息和第二配置信息所述用于确定所述第一SRS进行跳频的配置信息，所述第五配置信息用于确定第一SRS进行天线切换的配置信息，所述第四配置信息用于指示第一SRS所占用的时域符号的配置信息；
    处理单元，用于根据所述第一配置信息、所述第二配置信息、所述第五配置信息和所述第四配置信息，确定发送第一SRS时，先完成SRS跳频，再进行SRS天线切换。
  28. 根据权利要求27所述的装置，其特征在于，所述收发单元还用于：
    获取第三配置信息和第八配置信息；所述第三配置信息用于指示所述第一SRS占用的时域符号在正常子帧上，包括除最后一个OFDM符号以外的其它至少一个OFDM符号；所述第八配置信息用于指示所述终端设备发送所述第一SRS的小区；
    所述第一配置信息用于指示SRS的跳频带宽配置，所述第二配置信息用于指示终端设备级SRS带宽配置；
    当所述第一配置信息小于所述第二配置信息时，发送所述第一SRS时进行跳频；
    所述第五配置信息指示所述终端设备使能天线切换时，发送所述第一SRS时进行天线切换。
  29. 根据权利要求27所述的装置，其特征在于，所述处理单元还用于：
    所述第四配置信息用于指示所述终端设备发送SRS时进行重复的重复次数R；
    所述终端设备根据所述第一配置信息，所述第二配置信息、所述第三配置信息、所述第四配置信息和所述第五配置信息，确定发送所述第一SRS时，先完成SRS重复，再完成SRS跳频，最后进行SRS天线切换。
  30. 一种信号传输装置，其特征在于，包括：
    收发单元，用于向终端设备发送第一配置信息和第二配置信息；所述第一配置信息用于指示SRS的跳频带宽配置；所述第二配置信息用于指示终端设备级SRS带宽配置；
    以及用于接收来自终端设备的第一SRS；在所述终端设备根据所述第一配置信息和所述第二配置信息跳频传输所述第一SRS时，每在使用跳频对整个小区级SRS带宽完成一次探测时，切换一次发送所述第一SRS的天线。
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Publication number Priority date Publication date Assignee Title
WO2018151554A1 (ko) * 2017-02-14 2018-08-23 엘지전자 주식회사 Srs 설정 정보를 수신하는 방법 및 이를 위한 단말
WO2018159939A1 (ko) * 2017-03-01 2018-09-07 엘지전자 주식회사 무선통신 시스템에서 srs를 전송하는 방법 및 이를 위한 단말
WO2019028836A1 (en) * 2017-08-11 2019-02-14 Nokia Technologies Oy IMPROVED SURVEY REFERENCE SIGNAL TRANSMISSION
CN109586869A (zh) * 2017-09-29 2019-04-05 中国移动通信有限公司研究院 Srs发送方法、相位差处理方法、通信设备及存储介质

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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018151554A1 (ko) * 2017-02-14 2018-08-23 엘지전자 주식회사 Srs 설정 정보를 수신하는 방법 및 이를 위한 단말
WO2018159939A1 (ko) * 2017-03-01 2018-09-07 엘지전자 주식회사 무선통신 시스템에서 srs를 전송하는 방법 및 이를 위한 단말
WO2019028836A1 (en) * 2017-08-11 2019-02-14 Nokia Technologies Oy IMPROVED SURVEY REFERENCE SIGNAL TRANSMISSION
CN109586869A (zh) * 2017-09-29 2019-04-05 中国移动通信有限公司研究院 Srs发送方法、相位差处理方法、通信设备及存储介质

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LENOVO ET AL.: "Discussion of Additional SRS Symbols", 3GPP TSG RAN WG1 MEETING #96BIS R1-1904571, 12 April 2019 (2019-04-12), XP051691606 *

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