WO2018082067A1 - 传输探测参考信号的方法、网络设备和终端设备 - Google Patents

传输探测参考信号的方法、网络设备和终端设备 Download PDF

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Publication number
WO2018082067A1
WO2018082067A1 PCT/CN2016/104782 CN2016104782W WO2018082067A1 WO 2018082067 A1 WO2018082067 A1 WO 2018082067A1 CN 2016104782 W CN2016104782 W CN 2016104782W WO 2018082067 A1 WO2018082067 A1 WO 2018082067A1
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Prior art keywords
srs
symbol
configurations
terminal device
configuration
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PCT/CN2016/104782
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English (en)
French (fr)
Inventor
贺传峰
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP16920616.6A priority Critical patent/EP3528565A4/en
Priority to CN201680090563.1A priority patent/CN109906648B/zh
Priority to PCT/CN2016/104782 priority patent/WO2018082067A1/zh
Publication of WO2018082067A1 publication Critical patent/WO2018082067A1/zh
Priority to US16/404,322 priority patent/US20190260612A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2602Signal structure
    • H04L27/261Details of reference signals
    • H04L27/2613Structure of the reference signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202Channel estimation
    • H04L25/0224Channel estimation using sounding signals
    • H04L25/0226Channel estimation using sounding signals sounding signals per se
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2602Signal structure
    • H04L27/2605Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0094Indication of how sub-channels of the path are allocated
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames

Definitions

  • the embodiments of the present invention relate to the field of communications, and in particular, to a method, a terminal device, and a network device for transmitting a sounding reference signal in the communication field.
  • a base station needs a terminal device to transmit a sounding reference signal (SRS), so that the base station can perform uplink channel information estimation according to the SRS, thereby implementing Correct scheduling of terminal devices.
  • SRS sounding reference signal
  • the SRS transmission process requires symbol overhead, and how to reduce the symbol overhead of SRS transmission is a problem to be studied.
  • the embodiment of the present application provides a method, a network device, and a terminal device for transmitting a sounding reference signal SRS, which reduces symbol overhead of SRS transmission.
  • the embodiment of the present application provides a method for transmitting a sounding reference signal SRS, including:
  • the network device sends an indication message to the terminal device, where the indication message is used to indicate that the terminal device sends an SRS on the second symbol in the first symbol, where the first symbol is an uplink pilot of two special subframes in the radio frame. a symbol of a time slot UpPTS part, where the second symbol is a symbol of an UpPTS part of at least one special subframe of the two special subframes;
  • the network device receives the SRS sent by the terminal device.
  • the network device sends an indication message to the terminal device, instructing the terminal device to send the SRS on the symbol of the UpPTS part of the at least one special subframe of the two special subframes in the radio frame, which can significantly reduce the SRS.
  • the symbol overhead of the transfer is the symbol overhead of the transfer.
  • the network device sends an indication message to the terminal device by using the first carrier, where the first carrier is further used to transmit the uplink data.
  • the SRS is sent on the symbol indicating that the terminal device is in the UpPTS part of at least one special subframe of the two special subframes in the radio frame, so as to avoid frequent switching of the carrier, thereby Reduce carrier switching overhead.
  • the symbol used for sending the SRS may be a single carrier-frequency division multiple access (“SC-FDMA”) symbol or a downlink symbol It is an Orthogonal Frequency Division Multiple Access (“OFDMA”) symbol.
  • SC-FDMA single carrier-frequency division multiple access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • the network device sends at least two SRS configurations to the terminal device, where the at least two SRS configurations include at least two SRS configuration indexes I SRS , the at least two I The SRS corresponds to the first symbol.
  • the symbol of the UpPTS part includes two symbol sets, and the two symbol sets have no intersection;
  • the at least two SRS configurations are used to indicate symbols in at least one of the two sets of symbols, the I SRS being used to indicate an SRS subframe offset and an SRS period for determining symbols in the set of symbols.
  • the at least two SRS configurations include a first SRS configuration, a second SRS configuration, and a third SRS configuration;
  • the first SRS configuration includes a first I SRS
  • the second SRS configuration includes a second I SRS
  • the third SRS configuration includes a third I SRS ;
  • the first I SRS corresponds to a symbol in the first symbol set of the at least two symbol sets
  • the second I SRS and the third I SRS respectively correspond to the symbols in the second symbol set of the at least two symbol sets, wherein the symbols corresponding to the second I SRS and the symbols corresponding to the third I SRS are not the same.
  • the symbol interval is between any two symbol sets in the at least two symbol sets.
  • the at least two SRS configurations include a fourth SRS configuration and a fifth SRS configuration, where the fourth SRS configuration includes a fourth I SRS , where the fifth SRS configuration includes Five I SRS ;
  • the fourth I SRS corresponds to a symbol in the first symbol set of the at least two symbol sets
  • the fifth I SRS corresponds to a symbol in the second symbol set of the at least two symbol sets.
  • the fifth I SRS corresponds to four subframe offsets, where the four subframe offsets correspond to four symbols in the second symbol set.
  • the SRS trigger type corresponding to the at least two SRS configurations is a first trigger type or a second trigger type, where
  • the SRS trigger type corresponding to the at least two SRS configurations is the first trigger type
  • the at least two SRS configurations and the indication message are used to indicate that the terminal device sends the SRS on the second symbol
  • the method further includes: sending an SRS request to the terminal device in the subframe n, to indicate that the terminal device indicates in the indication message On a second symbol of the UpPTS portion of the special subframe satisfying n+k, the SRS is transmitted, where k is an integer greater than or equal to 4.
  • the method is applied to a time division duplex TDD system.
  • a method for transmitting a sounding reference signal SRS comprising:
  • the terminal device receives an indication message sent by the network device, where the indication message is used to indicate that the terminal device sends an SRS on the second symbol in the first symbol, where the first symbol is an uplink guide of two special subframes in the radio frame. a symbol of an UpPTS portion of the frequency slot, the second symbol being a symbol of an UpPTS portion of at least one of the two special subframes;
  • the terminal device sends an SRS to the network device.
  • the method further includes:
  • the terminal device receives at least two SRS configurations sent by the network device, where the at least two SRS configurations include at least two SRS configuration indexes I SRS , where the at least two I SRSs correspond to the first symbol;
  • the symbol of the UpPTS part includes two symbol sets, and the two symbol sets have no intersection;
  • the at least two SRS configurations are configured to indicate symbols in at least one of the two sets of symbols; the I SRS is used to indicate an SRS subframe offset and an SRS period for determining symbols in the set of symbols.
  • the at least two SRS configurations include a first SRS configuration, a second SRS configuration, and a third SRS configuration;
  • the first SRS configuration includes a first I SRS
  • the second SRS configuration includes a second I SRS
  • the third SRS configuration includes a third I SRS ;
  • the first I SRS corresponds to a symbol in the first symbol set of the at least two symbol sets
  • the second I SRS and the third I SRS respectively correspond to the symbols in the second symbol set of the at least two symbol sets, wherein the symbols corresponding to the second I SRS and the symbols corresponding to the third I SRS are not the same.
  • the at least two SRS configurations include a fourth SRS configuration and a fifth SRS configuration, where the fourth SRS configuration includes a fourth I SRS , where the fifth SRS configuration includes Five I SRS ;
  • the fourth I SRS corresponds to a symbol in the first symbol set of the at least two symbol sets
  • the fifth I SRS corresponds to a symbol in the second symbol set of the at least two symbol sets.
  • the fifth I SRS corresponds to four subframe offsets, where the four subframe offsets correspond to four symbols in the second symbol set.
  • the SRS trigger type corresponding to the at least two SRS configurations is a first trigger type or a second trigger type, where
  • the SRS trigger type corresponding to the at least two SRS configurations is the first trigger type
  • the at least two SRS configurations and the indication message are used to indicate that the SRS is sent to the network device on the second symbol
  • the method further includes: receiving an SRS request sent by the network device on the subframe n; sending the SRS to the network device, including: in the indication The SRS is transmitted on the second symbol of the UpPTS portion of the special subframe that is indicated by the message and satisfies the first n+k, where k is an integer greater than or equal to 4.
  • the method is applied to a time division duplex TDD system.
  • a network device comprising a transmitting unit and a receiving unit, which can perform the method in the first aspect or any alternative implementation of the first aspect.
  • a fourth aspect provides a terminal device, including a sending unit and a receiving unit, that can perform the method in any of the optional implementations of the second aspect or the second aspect.
  • a network device comprising a memory, a transceiver, and a processor having stored thereon program code operable to indicate execution of the first or any optional implementation thereof, when the code is executed
  • the processor can implement the network device in the method to perform various operations.
  • a terminal device comprising a memory, a transceiver, and a processor having stored thereon program code operable to indicate execution of the second or any optional implementation thereof, when the code is executed
  • the processor can implement the method in which the terminal device performs various operations.
  • a computer readable medium is provided, the computer readable medium being stored for Program code for execution by an end device, the program code comprising instructions for performing the method of the first aspect or various implementations thereof.
  • a computer readable medium storing program code for execution by a network device, the program code comprising instructions for performing the method of the second aspect or various implementations thereof .
  • FIG. 1 is a schematic diagram of a communication system in accordance with an embodiment of the present application.
  • FIG. 2 is a diagram showing a frame structure type of an LTE TDD system for communication between a terminal device and an access network in the embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a method for transmitting an SRS according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of carrier switching according to an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 6 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 7 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • the communication system 100 includes a network device 102 that can include multiple antennas, such as antennas 104, 106, 108, 110, 112, and 114. Additionally, network device 102 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which may include multiple components related to signal transmission and reception (eg, processor, modulator, multiplexer) , demodulator, demultiplexer or antenna, etc.).
  • multiple antennas such as antennas 104, 106, 108, 110, 112, and 114.
  • network device 102 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which may include multiple components related to signal transmission and reception (eg, processor, modulator, multiplexer) , demodulator, demultiplexer or antenna, etc.).
  • Network device 102 can communicate with a plurality of terminal devices, such as terminal device 116 and terminal device 122. However, it will be appreciated that network device 102 can communicate with any number of terminal devices similar to terminal device 116 or 122.
  • Terminal devices 116 and 122 may be, for example, cellular telephones, smart phones, portable computers, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other suitable for communicating over wireless communication system 100. device.
  • terminal device 116 is in communication with antennas 112 and 114, wherein antennas 112 and 114 transmit information to terminal device 116 over forward link 118 and from the terminal through reverse link 120.
  • the device 116 receives the information.
  • terminal device 122 is in communication with antennas 104 and 106, wherein antennas 104 and 106 transmit information to terminal device 122 over forward link 124 and receive information from terminal device 122 over reverse link 126.
  • the forward link 118 can use a different frequency band than the reverse link 120, and the forward link 124 can be used differently than the reverse link 126. Frequency band.
  • FDD Frequency Division Duplex
  • the forward link 118 and the reverse link 120 can use a common frequency band, a forward link 124, and a reverse link.
  • Link 126 can use a common frequency band.
  • Each antenna (or set of antennas consisting of multiple antennas) and/or regions designed for communication is referred to as a sector of network device 102.
  • the antenna group can be designed to communicate with terminal devices in sectors of the network device 102 coverage area.
  • the transmit antenna of network device 102 may utilize beamforming to improve the signal to noise ratio of forward links 118 and 124.
  • the network device 102 uses beamforming to transmit signals to the randomly dispersed terminal devices 116 and 122 in the relevant coverage area, the network device 102 uses a single antenna to transmit signals to all of its terminal devices. Mobile devices are subject to less interference.
  • network device 102, terminal device 116, or terminal device 122 may be a wireless communication transmitting device and/or a wireless communication receiving device.
  • the wireless communication transmitting device can encode the data for transmission.
  • the wireless communication transmitting device may acquire (eg, generate, receive from other communication devices, or store in memory, etc.) a certain number of data bits to be transmitted over the channel to the wireless communication receiving device.
  • Such data bits may be included in a transport block (or multiple transport blocks) of data that may be segmented to produce multiple code blocks.
  • the communication system 100 may be a public land mobile network (English full name may be: Public Land Mobile Network, English abbreviation may be: PLMN) network or D2D network or M2M network or other network, FIG. 1 is only a simplified schematic diagram of the network, Other network devices may also be included, which are not shown in FIG.
  • a network device which may be a device that communicates with a terminal device, such as a base station or base station controller, and the like.
  • Each network device can provide communication coverage for a particular geographic area and can communicate with terminal devices (e.g., UEs) located within the coverage area (cell).
  • the network device can be a base in a GSM system or a CDMA system Base Transceiver Station (BTS), which may also be a base station (NodeB, referred to as "NB”) in a WCDMA system, or an evolved base station (“eNB” or "eNB” in the LTE system).
  • BTS Base Transceiver Station
  • NB base station
  • eNB evolved base station
  • the network device may be a network device in a future 5G network or a public land mobile network in the future ( Network devices in the Public Land Mobile Network (PLMN).
  • PLMN Public Land Mobile Network
  • a terminal device which may refer to an access terminal, a user equipment (User Equipment, referred to as "UE"), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, and a remote station.
  • UE User Equipment
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol ("SSIP”) phone, a Wireless Local Loop (WLL) station, and a personal digital processing (Personal Digital) Assistant, referred to as "PDA"), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the Internet of Things, virtual reality devices, future 5G networks
  • PLMN Public Land Mobile Network
  • the method and apparatus for transmitting a sounding reference signal may be applied to a terminal device or a network device, where the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an operating system running on the operating system.
  • the application layer on the layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also referred to as main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system.
  • the application layer includes applications such as browsers, contacts, word processing software, and instant messaging software.
  • the specific structure of the execution subject of the method for transmitting the sounding reference signal is not particularly limited as long as the program of the code for recording the method of transmitting the signal of the embodiment of the present application can be executed.
  • the method for transmitting a signal according to the embodiment of the present application may be used for communication.
  • the execution body of the method for transmitting feedback information in the embodiment of the present application may be a terminal device or a network device, or may be a calling device in a terminal device or a network device. And execute the function module of the program.
  • the term "article of manufacture” as used in this application encompasses that is readable from any computer.
  • the computer readable medium may include, but is not limited to, a magnetic storage device (eg, a hard disk, a floppy disk, or a magnetic tape, etc.), such as a compact disc (CD), a digital versatile disc (Digital Versatile Disc, DVD). Etc.), smart cards and flash memory devices (eg, Erasable Programmable Read-Only Memory (EPROM), cards, sticks or key drivers, etc.).
  • various storage media described herein can represent one or more devices and/or other machine-readable media for storing information.
  • the term "machine-readable medium” may include, without limitation, a wireless channel and various other mediums capable of storing, containing, and/or carrying instructions and/or data.
  • the uplink symbol is called a single carrier-frequency division multiple access (“SC-FDMA”) symbol
  • the downlink symbol is called Orthogonal Frequency Division Multiple Access (“Orthogonal Frequency Division Multiple Access”).
  • OFDMA Orthogonal Frequency Division Multiple Access
  • the uplink symbol may also be referred to as an OFDMA symbol.
  • the uplink symbol and the downlink symbol are collectively referred to as a symbol, and may be other types of communication symbols.
  • FIG. 2 shows a frame structure type of an LTE TDD system for communication between a terminal device and an access network in the embodiment of the present application.
  • a radio frame with a period of 10 ms includes two special subframes, and each of the two special subframes includes a downlink pilot slot DwPTS.
  • the protection time slot GP and the uplink pilot time slot UpPTS are three parts, the symbols of the DwPTS part are used for downlink transmission, the symbols of the UpPTS part are used for uplink transmission, and the GP is used for downlink protection uplink protection interval.
  • the SRS of the embodiment of the present application may be transmitted on the symbol of the UpPTS part in a special subframe.
  • FIG. 3 is a schematic flowchart of a method 200 of transmitting a sounding reference signal SRS according to an embodiment of the present application. As shown in FIG. 3, the method 200 includes the following.
  • the network device sends an indication message to the terminal device, where the indication message is used to indicate that the terminal device sends an SRS on the second symbol in the first symbol, where the first symbol is two special subframes in the radio frame.
  • the symbol of the UpPTS part, the second symbol is the two special sub-frames to The symbol of the UpPTS part of one special sub-frame.
  • first special subframe and a second special subframe there are a first special subframe and a second special subframe in the radio frame, where the first symbol is both the symbol of the UpPTS part of the uplink pilot time slot of the first special subframe and the uplink of the second special subframe.
  • the symbol of the link pilot time slot UpPTS section is also included in the radio frame.
  • the second symbol is a symbol belonging to the UpPTS part of the first special subframe
  • the second symbol is a symbol belonging to an UpPTS portion of the second special subframe
  • the second symbol is both the symbol of the UpPTS part of the first special subframe and the symbol of the UpPTS part of the second special subframe.
  • the indication message is used to indicate that the terminal device sends an SRS on the second symbol.
  • the indication message is used to indicate that the terminal device sends the SRS on the symbol of the UpPTS part of the first special subframe;
  • the indication message is used to indicate that the terminal device sends the SRS on the symbol of the UpPTS part of the second special subframe;
  • the indication message is used to indicate that the terminal device simultaneously transmits the SRS on the symbols of the UpPTS part of the first special subframe and the second special subframe.
  • the network device may send the indication message by using the first carrier, where the first carrier may also be used by the terminal device to send the uplink data to the network device.
  • CA carrier-aggregation
  • the load of the downlink service is higher than that of the uplink service. Therefore, the number of component carriers (CCs) of the downlink carrier aggregation is usually larger than the number of CCs aggregated by the uplink carrier.
  • the UE generally supports more downlink aggregation carriers than the uplink aggregation carrier. Therefore, there are no uplink transmissions on some carriers supporting downlink transmission, including SRS, and these carriers become non-PUSCH transmission carriers. On these carriers, the network device cannot obtain the information of the downlink channel through SRS and channel reciprocity. Therefore, the fast handover of the uplink carrier can be performed to allow the UE to transmit the SRS in the uplink of the carrier of the non-PUSCH transmission to obtain the downlink channel information of the corresponding carrier.
  • the terminal device receives the indication message sent by the network device.
  • the terminal device sends an SRS to the network device.
  • the network device receives the SRS sent by the terminal device.
  • the number of the second symbols for transmitting the SRS may be determined according to the implementation, and is not specifically limited in this embodiment. For example, it can be one, it can be two, three or even more
  • the network device sends an indication message to the terminal device, instructing the terminal device to send the SRS on the symbol of the UpPTS part of the at least one special subframe of the two special subframes in the radio frame, which can significantly reduce the SRS.
  • the symbol overhead of the transfer is the symbol overhead of the transfer.
  • the SRS is transmitted on the symbol indicating that the terminal device is in the UpPTS portion of at least one of the two special subframes in the radio frame, to avoid frequent switching of the carrier, so that the carrier switching overhead can be reduced.
  • the fast handover of the uplink carrier is performed to allow the UE to transmit the SRS in the uplink of the carrier of the non-PUSCH transmission to obtain the downlink channel information of the corresponding carrier. Since the UE needs to switch the radio to other carriers, a certain switching time is required. The maximum switching time currently defined is 500 us, that is, about 7 symbols are required. For example, as shown in Figure 4, if you need to switch to a non-physical downlink shared channel (Physical Uplink Shared) Channel, abbreviated as "PUSCH”) The last symbol of the special subframe of the transmission carrier transmits the SRS. The 7 symbols before the symbol sent by the SRS need to be used for the radio frequency switching time.
  • PUSCH Physical Uplink Shared
  • the radio frequency switching time is used to switch back the PUSCH transmission carrier. If the SRS needs to be sent multiple times, only one symbol is sent at a time, the total carrier switching overhead is very large. It can be seen that the cost of the required radio switching time is large because the SRS is transmitted by the switching carrier. The UE cannot transmit and receive during the radio switching time, which affects the uplink and downlink transmission of these symbols.
  • the SRS is sent on the symbol indicating that the terminal device is in the UpPTS part of at least one special subframe of the two special subframes in the radio frame, so as to avoid the need to frequently switch the carrier for SRS transmission, thereby Reduce carrier switching overhead.
  • the network device sends at least two SRS configurations to the terminal device, where the at least two SRS configurations include at least two SRS configuration indexes I SRS , where the at least two I SRSs correspond to the The first symbol.
  • the terminal device may complete the at least two SRS configuration tasks in advance as needed.
  • the at least two SRS configurations may be implemented according to the same configuration policy, or may be implemented according to different configuration policies, and the configuration policy may be based on the LTE Release 13 version.
  • the 1-2 symbols in the UpPTS part are configured to transmit the SRS, or the 1-2 symbols in the UpPTS part of the UE are configured to send the SRS according to the LTE Release 13 version.
  • a new configuration policy can also be defined to configure the UE with 4 symbols in the UpPTS section for sending SRS.
  • the at least two SRS configurations are sent by the network device to the terminal device, and the network device may send the device to the terminal device in advance, or may be sent to the terminal device together with the indication message, or Loading in the indication message, and sending the indication message to the terminal device.
  • the at least two SRS configurations may be two SRS configurations, or may be three SRS configurations, four SRS configurations, five SRS configurations, and even more.
  • the at least two SRS configurations include at least two SRS configuration indexes I SRS , and one SRS configuration includes one SRS configuration index I SRS .
  • the at least two I SRSs correspond to the first symbol, and the I SRS has a correspondence relationship with the first symbol.
  • the symbol of the UpPTS part includes two symbol sets, and the two symbol sets have no intersection;
  • the at least two SRS configurations are used to indicate symbols in at least one of the two sets of symbols, the I SRS being used to indicate an SRS subframe offset and an SRS period for determining symbols in the set of symbols.
  • two symbol sets exist in the symbols of the UpPTS part of each special subframe of the two special subframes, and the two symbol sets have no intersection, and the symbols in the two symbol sets respectively correspond to different SRS configuration.
  • the two sets of symbols are to better reflect that the symbols in the two sets of symbols respectively correspond to different SRS configurations, and there is no necessary membership relationship between the symbols and the set of symbols.
  • the at least two SRS configurations are used to indicate symbols in at least one of the two sets of symbols.
  • the first SRS configuration may be used to indicate symbols in the first symbol set
  • the second SRS configuration may be used to indicate symbols in the second symbol set
  • other SRS configurations may also be used to indicate symbols in the second symbol set
  • the first SRS configuration may be used to indicate a symbol in the first symbol set
  • the second SRS The configuration may be used to indicate symbols in the second set of symbols
  • other SRS configurations may also be used to indicate symbols in the first set of symbols
  • all SRS configurations are used to indicate symbols in the second set of symbols.
  • the I SRS is used to indicate an SRS subframe offset and an SRS period.
  • the SRS period may be a period of a special subframe.
  • the SRS subframe offset and the SRS period may be queried according to the I SRS according to the following Table 1-5.
  • Table 1 is the correspondence between I SRS , SRS subframe offset, and SRS period when trigger type 0;
  • Table 2 is the correspondence between I SRS , SRS subframe offset, and SRS period when trigger type 1 is used.
  • determining a symbol in the symbol set according to the SRS subframe offset and the SRS period indicated by the I SRS and determining a symbol position in the symbol set according to the SRS subframe offset, and determining, according to the symbol position, the symbol position Send the symbol of the SRS;
  • T SRS represents the period of the SRS
  • T offset represents the SRS subframe offset
  • K SRS represents the SRS symbol position of the T offset map
  • the determination of the position of the symbol in the set of symbols can also be determined according to the following formula 2:
  • T SRS represents the period of the SRS
  • T offset represents the SRS subframe offset
  • K SRS represents the SRS symbol position of the T offset map
  • K SRS can be selected from Table 6-7 below:
  • the subframe index 6 corresponds to the UpPTS.
  • the at least two SRS configurations include a first SRS configuration, a second SRS configuration, and a third SRS configuration;
  • the first SRS configuration includes a first I SRS
  • the second SRS configuration includes a second I SRS
  • the third SRS configuration including a third I SRS ;
  • the first I SRS corresponds to a symbol in the first symbol set of the at least two symbol sets
  • the second I SRS and the third I SRS respectively correspond to the symbols in the second symbol set of the at least two symbol sets, wherein the symbols corresponding to the second I SRS and the symbols corresponding to the third I SRS are not the same.
  • the symbol interval is between any two symbol sets in the at least two symbol sets.
  • the triggering type of the SRS is different, the first I SRS , the second I SRS, and the third I SRS query are different, and the first I SRS , the second I SRS, and the third I SRS are corresponding. Different values;
  • the first I SRS queries Table 3, the second I SRS and the third I SRS query table 2.
  • the first SRS configuration includes a first I SRS , where the first SRS configuration may be configured to configure 1-2 symbols in the UpPTS part for the UE before the LTE Release 13 version.
  • the second SRS configuration includes a second I SRS , where the second SRS configuration may be 1-2 of 2 or 4 symbols in the UpPTS part configured for the UE based on the LTE Release 13 version.
  • the configuration policy implementation of the symbol, the second I SRS can be selected from Table 1, and the K SRS can be selected from Table 7;
  • the third SRS configuration includes a third I SRS , where the third SRS configuration may be 1-2 of 2 or 4 symbols in the UpPTS part configured for the UE based on the LTE Release 13 version.
  • the configuration policy implementation of the symbol, the third I SRS can be selected from Table 1, and the K SRS can be selected from Table 7.
  • the symbol position K SRS is (2, 3); or
  • the subframe offset T offset corresponding to the first I SRS may map 2 symbol positions in the first symbol set
  • the subframe offset T offset corresponding to the second I SRS may map the second symbol set.
  • the subframe offset T offset corresponding to the third I SRS may map 2 symbol positions in the second symbol set; the second symbol set corresponding to the subframe offset T offset corresponding to the second I SRS The two symbol positions in the second symbol position in the second symbol set mapped by the subframe offset T offset corresponding to the third I SRS are different.
  • the terminal device can determine the symbol of the specific transmission SRS according to the symbol position K SRS .
  • the first SRS configuration includes a first I SRS , where the first SRS configuration may be configured to configure 1-2 symbols in the UpPTS part for the UE before the LTE Release 13 version.
  • the first I SRS may be selected from Table 3.
  • the second SRS configuration includes a second I SRS , where the second SRS configuration may be 1-2 of 2 or 4 symbols in the UpPTS part configured for the UE based on the LTE Release 13 version.
  • the configuration policy implementation of the symbol, the second I SRS can be selected from Table 2, and the K SRS can be selected from Table 7;
  • the third SRS configuration includes a third I SRS , where the third SRS configuration may be 1-2 of 2 or 4 symbols in the UpPTS part configured for the UE based on the LTE Release 13 version.
  • the configuration policy implementation of the symbol, the third I SRS can be selected from Table 2, and the K SRS can be selected from Table 7.
  • the symbol position K SRS is (1, 3); or
  • the subframe offset T offset corresponding to the first I SRS may map 2 symbol positions in the first symbol set
  • the subframe offset T offset corresponding to the second I SRS may map the second symbol set.
  • the subframe offset T offset corresponding to the third I SRS may map 2 symbol positions in the second symbol set; the second symbol set corresponding to the subframe offset T offset corresponding to the second I SRS The two symbol positions in the second symbol position in the second symbol set mapped by the subframe offset T offset corresponding to the third I SRS are different.
  • the terminal device can determine the symbol of the specific transmission SRS according to the symbol position K SRS .
  • the at least two SRS configurations include a fourth SRS configuration and a fifth SRS configuration;
  • the fourth SRS configuration includes a fourth I SRS , where the fifth SRS configuration includes a fifth I SRS ;
  • the fourth I SRS corresponds to a symbol in the first symbol set of the at least two symbol sets
  • the fifth I SRS corresponds to a symbol in the second symbol set of the at least two symbol sets.
  • the triggering type of the SRS is different, and the fourth I SRS is different from the table of the fifth I SRS query, and the values corresponding to the fourth I SRS and the fifth I SRS are different;
  • the fourth I SRS queries Table 1, the fifth query table 4;
  • the fourth I SRS queries Table 3
  • the fourth SRS configuration includes a fourth I SRS , where the fourth SRS configuration may be configured to configure 1-2 symbols in the UpPTS part for the UE before the LTE Release 13 version.
  • the fifth SRS configuration includes a fifth I SRS , and the fifth SRS configuration may be implemented by configuring the UE with four symbols in the UpPTS part based on a completely new configuration policy, and the fifth I SRS may be selected from table 4, the K SRS may be selected from table 7.
  • the fifth I SRS is 645
  • the subframe offset T offset (0, 1, 2, 3)
  • the mapped symbol position K SRS is (0, 1, 2, 3); or
  • the symbol position K SRS is (5, 6, 7, 8).
  • the subframe offset T offset corresponding to the first I SRS may map 2 symbol positions in the first symbol set, and the subframe offset T offset corresponding to the fifth I SRS may be mapped in the second symbol set. 4 symbol positions.
  • the terminal device can determine the symbol of the specific transmission SRS according to the symbol position K SRS .
  • the fourth SRS configuration includes a fourth I SRS , where the fourth SRS configuration may be configured to configure 1-2 symbols in the UpPTS part for the UE before the LTE Release 13 version.
  • the fourth I SRS may be selected from Table 3.
  • the fifth SRS configuration includes a fifth I SRS
  • the fifth SRS configuration may be implemented by configuring the UE with four symbols in the UpPTS part based on a brand new configuration policy.
  • I SRS can be selected from table 5
  • the K SRS may be selected from table 7.
  • the mapped symbol position K SRS is (0, 1, 2, 3); or
  • the symbol position K SRS is (5, 6, 7, 8).
  • the subframe offset T offset corresponding to the first I SRS may map 2 symbol positions in the first symbol set, and the subframe offset T offset corresponding to the fifth I SRS may be mapped in the second symbol set. 4 symbol positions.
  • the terminal device may determine a symbol for specifically transmitting the SRS according to the symbol position K SRS .
  • the SRS trigger type corresponding to the at least two SRS configurations is a first trigger type or a second trigger type
  • the SRS trigger type corresponding to the at least two SRS configurations is the first trigger type
  • the at least two SRS configurations and the indication message are used to indicate that the terminal device sends the SRS on the second symbol
  • the method further includes: sending an SRS request to the terminal device in the subframe n, to indicate that the terminal device indicates in the indication message On a second symbol of the UpPTS portion of the special subframe satisfying n+k, the SRS is transmitted, where k is an integer greater than or equal to 4.
  • the SRS trigger type corresponding to the at least two SRS configurations is a first trigger type or a second trigger type
  • the first trigger type may be a trigger type
  • the second trigger type may be a trigger type 1.
  • the at least two SRS configurations and the indication message cooperate to indicate that the terminal device sends the SRS on the second symbol.
  • the indication message indicates that the terminal device that needs to send the SRS sends the SRS in the UpPTS part of the special subframe that occurs periodically.
  • the network device when the SRS type corresponding to the at least two SRS configurations is the second trigger type, the network device sends an SRS request to the terminal device in the subframe n, where the request is used to indicate that the terminal device is indicated by the indication message. And transmitting the SRS on the second symbol of the UpPTS part of the first special subframe satisfying n+k, where k is an integer greater than or equal to 4.
  • the indication sent by the network device may be multiple, but only the second symbol of the UpPTS part of the first special subframe satisfying n+k is sent, where k is an integer greater than or equal to 4;
  • the symbol for transmitting the SRS may be a partial symbol in the second symbol of the UpPTS portion of the first special subframe satisfying n+k, or may be the UpPTS portion of the first special subframe satisfying n+k. All symbols in the second symbol.
  • the method is applied to a time division duplex TDD system.
  • the network device sends an indication message to the terminal device, instructing the terminal device to send the SRS on the symbol of the UpPTS part of the at least one special subframe of the two special subframes in the radio frame, which can significantly reduce the SRS.
  • the signaling overhead of the transmission is the signaling overhead of the transmission.
  • the SRS is transmitted on the symbol indicating that the terminal device is in the UpPTS portion of at least one of the two special subframes in the radio frame, to avoid frequent switching of the carrier, so that the carrier switching overhead can be reduced.
  • FIG. 5 is a schematic block diagram of a network device 300 in accordance with an embodiment of the present application. As shown in FIG. 5, the network device 300 includes a transmitting unit 310 and a receiving unit 320.
  • the sending unit 310 is configured to send, to the terminal device, an indication message, where the indication message is used to indicate that the terminal device sends an SRS on the second symbol in the first symbol, where the first symbol is two special subframes in the radio frame. a symbol of an UpPTS portion of an uplink pilot time slot, the second symbol is a symbol of an UpPTS portion of at least one special subframe of the two special subframes; the receiving unit 320 is configured to receive the terminal on the second symbol The SRS sent by the device.
  • the sending unit 310 is further configured to:
  • the terminal device Transmitting at least two SRS configurations to the terminal device, the at least two SRS configurations including at least two SRS configuration indexes I SRS , the at least two I SRSs corresponding to the first symbol.
  • the symbol of the UpPTS part includes two symbol sets, and the two symbol sets have no intersection;
  • the at least two SRS configurations are used to indicate symbols in at least one of the two sets of symbols, the I SRS being used to indicate an SRS subframe offset and an SRS period for determining symbols in the set of symbols.
  • the at least two SRS configurations include a first SRS configuration, a second SRS configuration, and a third SRS configuration;
  • the first SRS configuration includes a first I SRS
  • the second SRS configuration includes a second I SRS
  • the three SRS configuration includes a third I SRS ;
  • the first I SRS corresponds to a symbol in the first symbol set of the at least two symbol sets
  • the second I SRS and the third I SRS respectively correspond to the symbols in the second symbol set of the at least two symbol sets, wherein the symbols corresponding to the second I SRS and the symbols corresponding to the third I SRS are not the same.
  • the at least two SRS configurations include a fourth SRS configuration and a fifth SRS configuration;
  • the fourth SRS configuration includes a fourth I SRS , where the fifth SRS configuration includes a fifth I SRS ;
  • the fourth I SRS corresponds to a symbol in the first symbol set of the at least two symbol sets
  • the fifth I SRS corresponds to a symbol in the second symbol set of the at least two symbol sets.
  • the fifth I SRS corresponds to four subframe offsets, where the four subframe offsets correspond to four symbols in the second symbol set.
  • the SRS trigger type corresponding to the at least two SRS configurations is a first trigger type or a second trigger type
  • the SRS trigger type corresponding to the at least two SRS configurations is the first trigger type
  • the at least two SRS configurations and the indication message are used to indicate that the terminal device sends the SRS on the second symbol
  • the sending unit 310 is further configured to: send an SRS request to the terminal device in the subframe n, to indicate that the terminal device indicates the indication message And transmitting the SRS on the second symbol of the UpPTS portion of the first special subframe satisfying n+k, where k is an integer greater than or equal to 4.
  • the device 300 is applied to a TDD system.
  • FIG. 6 is a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in FIG. 6, the terminal device 400 includes a receiving unit 410 and a transmitting unit 420.
  • the receiving unit 410 is configured to receive an indication message sent by the network device, where the indication message is used to indicate that the terminal device sends an SRS on the second symbol in the first symbol, where the first symbol is two special subframes in the radio frame. a symbol of an uplink pilot time slot UpPTS portion, the second symbol is a symbol of at least one special subframe UpPTS portion of the two special subframes; and a sending unit 420 is configured to send the network to the second symbol The device sends an SRS.
  • the receiving unit 410 is further configured to: receive at least two SRS configurations sent by the network device, where the at least two SRS configurations include at least two SRS configuration indexes I SRS , where the at least two I SRSs correspond to The first symbol, configured to determine the first symbol according to the at least two SRS configurations;
  • the symbol of the UpPTS part includes two symbol sets, and the two symbol sets have no intersection;
  • the at least two SRS configurations are configured to indicate symbols in at least one of the two sets of symbols; the I SRS is used to indicate an SRS subframe offset and an SRS period for determining symbols in the set of symbols.
  • the at least two SRS configurations include a first SRS configuration, a second SRS configuration, and a third SRS configuration;
  • the first SRS configuration includes a first I SRS
  • the second SRS configuration includes a second I SRS
  • the three SRS configuration includes a third I SRS ;
  • the first I SRS corresponds to a symbol in the first symbol set of the at least two symbol sets
  • the second I SRS and the third I SRS respectively correspond to the symbols in the second symbol set of the at least two symbol sets, wherein the symbols corresponding to the second I SRS and the symbols corresponding to the third I SRS are not the same.
  • the at least two SRS configurations include a fourth SRS configuration and a fifth SRS configuration;
  • the fourth SRS configuration includes a fourth I SRS , where the fifth SRS configuration includes a fifth I SRS ;
  • the fourth I SRS corresponds to a symbol in the first symbol set of the at least two symbol sets
  • the fifth I SRS corresponds to a symbol in the second symbol set of the at least two symbol sets.
  • the fifth I SRS corresponds to four subframe offsets, where the four subframe offsets correspond to four symbols in the second symbol set.
  • the SRS trigger type corresponding to the at least two SRS configurations is a first trigger type or a second trigger type
  • the SRS trigger type corresponding to the at least two SRS configurations is the first trigger type
  • the at least two SRS configurations and the indication message are used to indicate that the SRS is sent to the network device on the second symbol
  • the receiving unit 410 is further configured to: receive the SRS request sent by the network device on the subframe n; the sending unit 420 is configured to: in the indication message On the second symbol of the UpPTS portion of the indicated and first special subframe that satisfies n+k, the SRS is transmitted, where k is an integer greater than or equal to 4.
  • the terminal device is applied to a time division duplex TDD system.
  • FIG. 7 is a schematic block diagram of a communication device 500 provided by an embodiment of the present application.
  • the communication device 500 includes:
  • a memory 510 configured to store a program
  • the transceiver 520 is configured to communicate with other devices;
  • the processor 530 is configured to execute a program in the memory 510.
  • the processor 530 can implement the operations of the terminal device in the method, and details are not described herein for brevity.
  • the communication device 500 can be a terminal device.
  • the processor 530 can implement various operations in the network device in the method, and details are not described herein for brevity.
  • the communication device 500 can be a network device.
  • the processor 530 may be a central processing unit ("CPU"), and the processor 530 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 510 can include read only memory and random access memory and provides instructions and data to the processor 530. A portion of the memory 510 can also include a non-volatile random access memory. For example, the memory 510 can also store information of the device type.
  • each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 530 or an instruction in a form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor 530 reads the information in the memory and completes the steps of the above method in combination with the hardware thereof. To avoid repetition, it will not be described in detail here.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • This functionality if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method of various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本申请实施例提供了一种传输探测参考信号的方法、一种网络设备和一种终端设备,避免由于需要频繁切换载波,从而可以减少载波切换开销。所述方法包括:网络设备向终端设备发送指示消息,所述指示消息用于指示所述终端设备在第一符号中的第二符号上发送SRS,所述第一符号为无线帧中两个特殊子帧的上行链路导频时隙UpPTS部分的符号,所述第二符号为所述两个特殊子帧中至少一个特殊子帧的UpPTS部分的符号;在所述第二符号上,所述网络设备接收所述终端设备发送的SRS。

Description

传输探测参考信号的方法、网络设备和终端设备 技术领域
本申请实施例涉及通信领域,尤其涉及通信领域中传输探测参考信号的方法、终端设备和网络设备。
背景技术
在长期演进(Long Term Evolution,简称“LTE”)系统中,基站需要终端设备发送探测参考信号(sounding reference signal,简称“SRS”),从而使得基站能够根据SRS进行上行信道信息的估计,进而实现对终端设备的正确调度。
SRS传输过程需要符号开销,如何减小SRS传输的符号开销是一项需要研究的问题。
发明内容
本申请实施例提供了一种传输探测参考信号SRS的方法、网络设备和终端设备,减小SRS传输的符号开销。
第一方面,本申请实施例提供了一种传输探测参考信号SRS的方法,包括:
网络设备向终端设备发送指示消息,该指示消息用于指示该终端设备在第一符号中的第二符号上发送SRS,该第一符号为无线帧中两个特殊子帧的上行链路导频时隙UpPTS部分的符号,该第二符号为该两个特殊子帧中至少一个特殊子帧的UpPTS部分的符号;
在该第二符号上,该网络设备接收该终端设备发送的SRS。
因此,在本申请实施例中,网络设备向终端设备发送指示消息,指示终端设备在无线帧中两个特殊子帧中的至少一个特殊子帧的UpPTS部分的符号上发送SRS,能够明显减少SRS传输的符号开销。
可选地,在第一方面的一种实现方式中,网络设备通过第一载波向终端设备发送指示消息,该第一载波还用于传输上行数据。
因此,在指示终端设备在无线帧中两个特殊子帧中的至少一个特殊子帧的UpPTS部分的符号上发送SRS,避免由于需要频繁切换载波,从而可以 减少载波切换开销。
可选地,在第一方面的一种实现方式中,用于发送SRS的符号可以为单载波频分多址(single carrier-frequency division multiple access,简称“SC-FDMA”)符号或下行符号称为正交频分多址(Orthogonal Frequency Division Multiple Access,简称“OFDMA”)符号。
可选地,在第一方面的一种实现方式中,该网络设备向该终端设备发送至少两个SRS配置,该至少两个SRS配置包括至少两个SRS配置索引ISRS,该至少两个ISRS对应于该第一符号。
可选地,在第一方面的一种实现方式中,该UpPTS部分的符号包括两个符号集合,该两个符号集合没有交集;
该至少两个SRS配置用于指示该两个符号集合中的至少一个集合中的符号,该ISRS用于指示SRS子帧偏移量以及SRS周期,以用于确定该符号集合中的符号。
可选地,在第一方面的一种实现方式中,该至少两个SRS配置包括第一SRS配置、第二SRS配置和第三SRS配置;该第一SRS配置包括第一ISRS,该第二SRS配置包括第二ISRS,该第三SRS配置包括第三ISRS;其中,
该第一ISRS对应于该至少两个符号集合中第一符号集合中的符号;
该第二ISRS和该第三ISRS分别对应于该至少两个符号集合中第二符号集合中的符号,其中,该第二ISRS对应的符号与该第三ISRS对应的符号各不相同。
可选地,在第一方面的一种实现方式中,至少两个符号集合中任意两个符号集合之间具有符号间隔。
可选地,在第一方面的一种实现方式中,该至少两个SRS配置包括第四SRS配置和第五SRS配置;该第四SRS配置包括第四ISRS,该第五SRS配置包括第五ISRS
其中,该第四ISRS对应于该至少两个符号集合中第一符号集合中的符号;
该第五ISRS对应于该至少两个符号集合中第二符号集合中的符号。
可选地,在第一方面的一种实现方式中,该第五ISRS对应四个子帧偏移量,该四个子帧偏移量对应于该第二符号集合中的四个符号。
可选地,在第一方面的一种实现方式中,该至少两个SRS配置对应的SRS触发类型为第一触发类型或第二触发类型;其中,
当该至少两个SRS配置对应的SRS触发类型为第一触发类型时,该至少两个SRS配置和该指示消息用于指示该终端设备在该第二符号上发送SRS;或
当该至少两个SRS配置对应的SRS类型为第二触发类型时,该方法还包括:在子帧n向该终端设备发送SRS请求,以用于指示该终端设备在该指示消息指示的且第一个满足n+k的特殊子帧的UpPTS部分的第二符号上,发送SRS,其中,k为大于或者等于4的整数。
可选地,在第一方面的一种实现方式中,该方法应用于时分双工TDD系统。
第二方面,提供了一种传输探测参考信号SRS的方法,其特征在于,包括:
终端设备接收网络设备发送的指示消息,该指示消息用于指示该终端设备在第一符号中的第二符号上发送SRS,该第一符号为无线帧中两个特殊子帧的上行链路导频时隙UpPTS部分的符号,该第二符号为该两个特殊子帧中至少一个特殊子帧UpPTS部分的符号;
在该第二符号上,该终端设备向该网络设备发送SRS。
可选地,在第二方面的一种实现方式中,该方法还包括:
该终端设备接收该网络设备发送的至少两个SRS配置;其中,该至少两个SRS配置包括至少两个SRS配置索引ISRS,该至少两个ISRS对应于该第一符号;
该终端设备根据该至少两个SRS配置,确定该第一符号;
可选地,在第二方面的一种实现方式中,该UpPTS部分的符号包括两个符号集合,两个符号集合没有交集;
该至少两个SRS配置用于指示该两个符号集合中的至少一个集合中的符号;该ISRS用于指示SRS子帧偏移量以及SRS周期,以用于确定符号集合中的符号。
可选地,在第二方面的一种实现方式中,该至少两个SRS配置包括第一SRS配置、第二SRS配置和第三SRS配置;该第一SRS配置包括第一ISRS,该第二SRS配置包括第二ISRS,该第三SRS配置包括第三ISRS;其中,
该第一ISRS对应于该至少两个符号集合中第一符号集合中的符号;
该第二ISRS和该第三ISRS分别对应于该至少两个符号集合中第二符号集 合中的符号,其中,该第二ISRS对应的符号与该第三ISRS对应的符号各不相同。
可选地,在第二方面的一种实现方式中,该至少两个SRS配置包括第四SRS配置和第五SRS配置;该第四SRS配置包括第四ISRS,该第五SRS配置包括第五ISRS
其中,该第四ISRS对应于该至少两个符号集合中第一符号集合中的符号;
该第五ISRS对应于该至少两个符号集合中第二符号集合中的符号。
可选地,在第二方面的一种实现方式中,该第五ISRS对应四个子帧偏移量,该四个子帧偏移量对应于该第二符号集合中的四个符号。
可选地,在第二方面的一种实现方式中,其特征在于,该至少两个SRS配置对应的SRS触发类型为第一触发类型或第二触发类型;其中,
当该至少两个SRS配置对应的SRS触发类型为第一触发类型时,该至少两个SRS配置和该指示消息用于指示在该第二符号上向该网络设备发送SRS;或
当该至少两个SRS配置对应的SRS类型为第二触发类型时,该方法还包括:在子帧n上接收该网络设备发送的SRS请求;该向该网络设备发送SRS,包括:在该指示消息指示的且第一个满足n+k的特殊子帧的UpPTS部分的第二符号上,发送SRS,其中,k为大于或者等于4的整数。
可选地,在第二方面的一种实现方式中,该方法应用于时分双工TDD系统。
第三方面,提供了一种网络设备,包括发送单元和接收单元,可以执行第一方面或第一方面的任一可选的实现方式中的方法。
第四方面,提供了一种终端设备,包括发送单元和接收单元,可以执行第二方面或第二方面的任一可选的实现方式中的方法。
第五方面,提供了一种网络设备,包括存储器、收发器和处理器,该存储器上存储有可以用于指示执行上述第一或其任意可选的实现方式的程序代码,当该代码被执行时,该处理器可以实现方法中网络设备执行各个操作。
第六方面,提供了一种终端设备,包括存储器、收发器和处理器,该存储器上存储有可以用于指示执行上述第二或其任意可选的实现方式的程序代码,当该代码被执行时,该处理器可以实现方法中终端设备执行各个操作。
第七方面,提供一种计算机可读介质,所述计算机可读介质存储用于终 端设备执行的程序代码,所述程序代码包括用于执行第一方面或其各种实现方式中的方法的指令。
第八方面,提供一种计算机可读介质,所述计算机可读介质存储用于网络设备执行的程序代码,所述程序代码包括用于执行第二方面或其各种实现方式中的方法的指令。
附图说明
图1是根据本申请实施例的通信系统的示意性图。
图2是本申请实施例中终端设备与接入网之间通信的LTE TDD系统的帧结构类型图。
图3是根据本申请实施例的一种传输SRS的方法的示意性流程图。
图4是根据本申请实施例的载波切换示意图。
图5是根据本申请实施例的网络设备的示意性框图。
图6是根据本申请实施例的终端设备的示意性框图。
图7示出了本申请实施例提供的通信装置的示意性框图。
具体实施方式
下面将结合附图,对本发明实施例中的技术方案进行描述。
图1是使用本申请的传输信息的通信系统的示意图。如图1所示,该通信系统100包括网络设备102,网络设备102可包括多个天线例如,天线104、106、108、110、112和114。另外,网络设备102可附加地包括发射机链和接收机链,本领域普通技术人员可以理解,它们均可包括与信号发送和接收相关的多个部件(例如处理器、调制器、复用器、解调器、解复用器或天线等)。
网络设备102可以与多个终端设备(例如终端设备116和终端设备122)通信。然而,可以理解,网络设备102可以与类似于终端设备116或122的任意数目的终端设备通信。终端设备116和122可以是例如蜂窝电话、智能电话、便携式电脑、手持通信设备、手持计算设备、卫星无线电装置、全球定位系统、PDA和/或用于在无线通信系统100上通信的任意其它适合设备。
如图1所示,终端设备116与天线112和114通信,其中天线112和114通过前向链路118向终端设备116发送信息,并通过反向链路120从终端设 备116接收信息。此外,终端设备122与天线104和106通信,其中天线104和106通过前向链路124向终端设备122发送信息,并通过反向链路126从终端设备122接收信息。
例如,在频分双工(FDD,Frequency Division Duplex)系统中,例如,前向链路118可与反向链路120使用不同的频带,前向链路124可与反向链路126使用不同的频带。
再例如,在时分双工(TDD,Time Division Duplex)系统和全双工(Full Duplex)系统中,前向链路118和反向链路120可使用共同频带,前向链路124和反向链路126可使用共同频带。
被设计用于通信的每个天线(或者由多个天线组成的天线组)和/或区域称为网络设备102的扇区。例如,可将天线组设计为与网络设备102覆盖区域的扇区中的终端设备通信。在网络设备102通过前向链路118和124分别与终端设备116和122进行通信的过程中,网络设备102的发射天线可利用波束成形来改善前向链路118和124的信噪比。此外,与网络设备通过单个天线向它所有的终端设备发送信号的方式相比,在网络设备102利用波束成形向相关覆盖区域中随机分散的终端设备116和122发送信号时,相邻小区中的移动设备会受到较少的干扰。
在给定时间,网络设备102、终端设备116或终端设备122可以是无线通信发送装置和/或无线通信接收装置。当发送数据时,无线通信发送装置可对数据进行编码以用于传输。具体地,无线通信发送装置可获取(例如生成、从其它通信装置接收、或在存储器中保存等)要通过信道发送至无线通信接收装置的一定数目的数据比特。这种数据比特可包含在数据的传输块(或多个传输块)中,传输块可被分段以产生多个码块。
此外,该通信系统100可以是公共陆地移动网络(英文全称可以为:Public Land Mobile Network,英文简称可以为:PLMN)网络或者D2D网络或者M2M网络或者其他网络,图1只是举例的简化示意图,网络中还可以包括其他网络设备,图1中未予以画出。
本申请结合网络设备描述了各个实施例,该网络设备可以是与终端设备进行通信的设备,例如,基站或基站控制器等。每个网络设备可以为特定的地理区域提供通信覆盖,并且可以与位于该覆盖区域(小区)内的终端设备(例如UE)进行通信。该网络设备可以是GSM系统或CDMA系统中的基 站(Base Transceiver Station,简称“BTS”),也可以是WCDMA系统中的基站(NodeB,简称“NB”),还可以是LTE系统中的演进型基站(Evolutional Node B,简称“eNB”或“eNodeB”),或者是云无线接入网络(Cloud Radio Access Network,简称“CRAN”)中的无线控制器,或者该网络设备可以为未来5G网络中的网络设备或者未来演进的公共陆地移动网络(Public Land Mobile Network,简称“PLMN”)中的网络设备等。
另外,本申请结合终端设备描述了各个实施例,终端设备可以指接入终端、用户设备(User Equipment,简称为“UE”)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动终端、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,简称为“SIP”)电话、无线本地环路(Wireless Local Loop,简称为“WLL”)站、个人数字处理(Personal Digital Assistant,简称为“PDA”)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、物联网中的终端设备、虚拟现实设备、未来5G网络中的终端设备或者未来演进的公共陆地移动网络(Public Land Mobile Network,简称为“PLMN”)中的终端设备等。
本申请实施例提供的传输探测参考信号的方法和装置,可以应用于终端设备或网络设备,该终端设备或网络设备包括硬件层、运行在硬件层之上的操作系统层,以及运行在操作系统层上的应用层。该硬件层包括中央处理器(Central Processing Unit,CPU)、内存管理单元(MMU,Memory Management Unit)和内存(也称为主存)等硬件。该操作系统可以是任意一种或多种通过进程(Process)实现业务处理的计算机操作系统,例如,Linux操作系统、Unix操作系统、Android操作系统、iOS操作系统或windows操作系统等。该应用层包含浏览器、通讯录、文字处理软件、即时通信软件等应用。并且,在本申请实施例中,传输探测参考信号的方法的执行主体的具体结构,本申请并未特别限定,只要能够通过运行记录有本申请实施例的传输信号的方法的代码的程序,以根据本申请实施例的传输信号的方法进行通信即可,例如,本申请实施例的传输反馈信息的方法的执行主体可以是终端设备或网络设备,或者,是终端设备或网络设备中能够调用程序并执行程序的功能模块。
此外,本申请的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读 器件、载体或介质访问的计算机程序。例如,计算机可读介质可以包括,但不限于:磁存储器件(例如,硬盘、软盘或磁带等),光盘(例如,压缩盘(Compact Disc,CD)、数字通用盘(Digital Versatile Disc,DVD)等),智能卡和闪存器件(例如,可擦写可编程只读存储器(Erasable Programmable Read-Only Memory,EPROM)、卡、棒或钥匙驱动器等)。另外,本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于,无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
应理解,本申请实施例的技术方案可以应用于LTE TDD系统,作为示例而非限定,任何通过调度进行数据传输的无线通信系统都适用于本申请实施例。为了更好地理解本申请,以LTE TDD系统为例对本申请实施例进行说明。
应理解,上行符号称为单载波频分多址(single carrier-frequency division multiple access,简称“SC-FDMA”)符号,下行符号称为正交频分多址(Orthogonal Frequency Division Multiple Access,简称“OFDMA”)符号。需要说明的是,若后续技术引入OFDMA的上行多址方式,上行符号也可以称为OFDMA符号。在本申请实施例中,上行符号和下行符号都统称为符号,也可以是其它类型的通信的符号,本申请实施例对此不作任何限定。
图2示出了本申请实施例中终端设备与接入网之间通信的LTE TDD系统的帧结构类型。如图2所示,在该LTE TDD系统的帧结构中一个周期为10ms的无线帧中包括两个特殊子帧,该两个特殊子帧中的每个特殊子帧包含下行导频时隙DwPTS、保护时隙GP、上行导频时隙UpPTS三部分,该DwPTS部分的符号用于下行传输,UpPTS部分的符号用于上行传输,GP用于下行切换上行的保护间隔。
应理解,本申请实施例的SRS可以在一个特殊子帧中的UpPTS部分的符号上传输。
图3是根据本申请实施例的一种传输探测参考信号SRS的方法200的示意性流程图。如图3所示,该方法200包括以下内容。
在210中,网络设备向终端设备发送指示消息,其中,该指示消息用于指示该终端设备在第一符号中的第二符号上发送SRS,该第一符号为无线帧中两个特殊子帧的UpPTS部分的符号,该第二符号为该两个特殊子帧中至 少一个特殊子帧的UpPTS部分的符号。
应理解,无线帧中存在第一特殊子帧和第二特殊子帧,该第一符号既是第一特殊子帧的上行链路导频时隙UpPTS部分的符号又是第二特殊子帧的上行链路导频时隙UpPTS部分的符号。
应理解,无线帧中存在第一特殊子帧和第二特殊子帧,该第二符号存在三种情况:
情况一,该第二符号是属于第一特殊子帧的UpPTS部分的符号;
情况二,该第二符号是属于第二特殊子帧的UpPTS部分的符号;
情况三,该第二符号既是第一特殊子帧的UpPTS部分的符号又是第二特殊子帧的UpPTS部分的符号。
应理解,该第二符号是该第一符号的部分或全部。
可选地,该指示消息用于指示该终端设备在该第二符号上发SRS。
具体地,该指示消息用于指示该终端设备在第一特殊子帧的UpPTS部分的符号上发送SRS;或
该指示消息用于指示该终端设备在第二特殊子帧的UpPTS部分的符号上发送SRS;或
该指示消息用于指示该终端设备在第一特殊子帧和第二特殊子帧的UpPTS部分的符号上同时发送SRS。
可选地,在本申请实施例中,网络设备可以通过第一载波发送指示消息,其中,该第一载波还可以用于终端设备向网络设备发送上行数据。
具体地说,在通信系统中,支持通过载波聚合技术(CA,carrier aggregation),即通过多个载波同时为用户进行服务,来提高系统和用户的吞吐量。通常下行业务的负载比上行业务高,因此下行载波聚合的成员载波(CC,component carriers)数量通常比上行载波聚合的CC数量多。对于具有CA能力的UE,通常UE支持的下行聚合载波数比上行聚合载波数多,因此,在一些支持下行传输的载波上没有上行传输,包括SRS,这些载波成为非PUSCH传输载波。在这些载波上,网络设备不能通过SRS和信道互易性获得下行信道的信息。因此,可以通过上行载波的快速切换,以允许UE在非PUSCH传输的载波的上行发送SRS,以获得对应的载波的下行信道信息。
在220中,终端设备接收网络设备发送的该指示消息。
在230中,根据该指示消息,在该第二符号上,该终端设备向该网络设备发送SRS。
在240中,在该第二符号上,该网络设备接收该终端设备发送的SRS。
应理解,发送SRS的第二符号的数量可以根据实现情况而定,本申请实施例不做具体限制。例如,可以是一个,也可以是两个、三个甚至更多
因此,在本申请实施例中,网络设备向终端设备发送指示消息,指示终端设备在无线帧中两个特殊子帧中的至少一个特殊子帧的UpPTS部分的符号上发送SRS,能够明显减少SRS传输的符号开销。
并且进一步地,在指示终端设备在无线帧中两个特殊子帧中的至少一个特殊子帧的UpPTS部分的符号上发送SRS,避免由于需要频繁切换载波,从而可以减少载波切换开销。
具体地说,按照以上描述,通过上行载波的快速切换,以允许UE在非PUSCH传输的载波的上行发送SRS,以获得对应的载波的下行信道信息。由于UE需要切换射频到其他载波,需要一定的切换时间,目前定义的最大切换时间为500us,即大约需要7个符号,以图4为例,如果需要切换到非物理下行共享信道(Physical Uplink Shared Channel,简称“PUSCH”)传输载波的特殊子帧的最后一个符号发送SRS,则需要在该SRS发送的符号前的7个符号用于射频切换时间,在发送完SRS后,还需要7个符号的射频切换时间用于切回PUSCH传输载波。如果需要多次发送SRS,每次只发送一个符号,那么总的载波切换开销非常大。可见,通过切换载波发送SRS,需要的射频切换时间的开销很大,因为在射频切换时间内,UE无法进行发送和接收,影响这些符号的上下行传输。
因此,在本申请实施例中,在指示终端设备在无线帧中两个特殊子帧中的至少一个特殊子帧的UpPTS部分的符号上发送SRS,避免由于需要频繁切换载波进行SRS传输,从而可以减少载波切换开销。
可选地,在本申请实施例中,该网络设备向该终端设备发送至少两个SRS配置,该至少两个SRS配置包括至少两个SRS配置索引ISRS,该至少两个ISRS对应于该第一符号。
可选地,该终端设备可以根据需要提前完成该至少两个SRS配置工作。
可选地,该至少两个SRS配置可以根据相同的配置策略实现,也可以根据不同的配置策略实现,同时该配置策略可以是基于LTE Release13版本之 前的为UE配置UpPTS部分中的1-2个符号用于发送SRS,也可以是基于LTE Release13版本的为UE配置UpPTS部分中的2或4个符号中的1-2个符号用于发送SRS,还可以定义一种新的配置策略,为UE配置UpPTS部分中的4个符号用于发送SRS。
可选地,该至少两个SRS配置是由该网络设备向该终端设备发送的,该网络设备可以根据需要提前向该终端设备发送,也可以同该指示消息一起发送给该终端设备,还可以加载在该指示消息中,随该指示消息发送给该终端设备。
可选地,该至少两个SRS配置可以是两个SRS配置,也可以是三个SRS配置、四个SRS配置、五个SRS配置,甚至更多,本申请实施例不做具体限制。
可选地,该至少两个SRS配置包括至少两个SRS配置索引ISRS,一个SRS配置包括一个SRS配置索引ISRS
可选地,该至少两个ISRS对应于该第一符号,ISRS与该第一符号存在对应关系。
可选地,在本申请实施例中,该UpPTS部分的符号包括两个符号集合,该两个符号集合没有交集;
该至少两个SRS配置用于指示该两个符号集合中的至少一个集合中的符号,该ISRS用于指示SRS子帧偏移量以及SRS周期,以用于确定该符号集合中的符号。
可选地,在两个特殊子帧中的每一个特殊子帧的UpPTS部分的符号中都存在两个符号集合,且该两个符号集合没有交集,该两个符号集合中的符号分别对应不同的SRS配置。
应理解,该两个符号集合是为了更好地体现该两个符号集合中的符号分别对应不同的SRS配置,符号与符号集合之间不存在必然的隶属关系。
可选地,该至少两个SRS配置用于指示该两个符号集合中的至少一个集合中的符号。
例如,第一SRS配置可以用于指示第一符号集合中的符号,第二SRS配置可以用于指示第二符号集合中符号,同时其它SRS配置也可以用于指示第二符号集合中的符号;
或者,第一SRS配置可以用于指示第一符号集合中的符号,第二SRS 配置可以用于指示第二符号集合中符号,同时其他SRS配置也可以用于指示第一符号集合中的符号;
或者,所有的SRS配置都用于指示第一符号集合中的符号;
或者,所有的SRS配置都用于指示第二符号集合中的符号。
可选地,该ISRS用于指示SRS子帧偏移量以及SRS周期。
可选地,SRS周期可以为特殊子帧的周期。
可选地,可以按照以下表1-5,根据ISRS查询SRS子帧偏移量以及SRS周期。
表1
Figure PCTCN2016104782-appb-000001
表2
Figure PCTCN2016104782-appb-000002
表3
Figure PCTCN2016104782-appb-000003
表4
Figure PCTCN2016104782-appb-000004
表5
Figure PCTCN2016104782-appb-000005
其中,表1是触发类型0时,ISRS、SRS子帧偏移量以及SRS周期的对应关系;表2是触发类型1时,ISRS、SRS子帧偏移量以及SRS周期的对应关系。
可选地,如表3所示,在触发类型1时,赋予ISRS=0对应的SRS子帧偏移量Toffset为(0,1)以及SRS周期为TSRS=2ms。
可选地,如表4所示,采用一种全新的配置策略,在触发类型0时,赋予ISRS=645对应的SRS子帧偏移量Toffset为(0,1,2,3)以及SRS周期为TSRS=2ms或ISRS=646对应的SRS子帧偏移量Toffset为(5,6,7,8)以及SRS周期为TSRS=2ms。
可选地,如表5所示,采用一种全新的配置策略,在触发类型1时,赋予ISRS=25对应的SRS子帧偏移量Toffset为(0,1,2,3)以及SRS周期为TSRS=2ms或ISRS=26对应的SRS子帧偏移量Toffset为(5,6,7,8)以及SRS周期为TSRS=2ms。
可选地,根据该ISRS指示的SRS子帧偏移量以及SRS周期,确定该符号集合中的符号,可以根据SRS子帧偏移量确定该符号集合中的符号位置,根据该符号位置确定发送SRS的符号;
该确定该符号集合中的符号位置可以根据下列公式1确定:
TSRS=2ms且(KSRS-Toffset)mod5=0            公式1
其中,TSRS表示SRS的周期,Toffset表示SRS子帧偏移量,KSRS表示Toffset映射的SRS符号位置;
该确定该符号集合中的符号位置还可以根据下列公式2确定:
TSRS=2ms且(KSRS-Toffset)mod10=0          公式2
其中,TSRS表示SRS的周期,Toffset表示SRS子帧偏移量,KSRS表示Toffset映射的SRS符号位置。
可选地,KSRS可以从以下表6-7中选择:
表6
Figure PCTCN2016104782-appb-000006
表7
Figure PCTCN2016104782-appb-000007
在表6中,子帧索引1对应UpPTS中存在2个连续符号时的KSRS=(0,1),对应UpPTS中存在1个连续符号时的KSRS=1;子帧索引6对应UpPTS中存在2个连续符号时的KSRS=(5,6),对应UpPTS中存在1个连续符号时的KSRS=6;
在表7中,子帧索引1对应UpPTS中存在4个连续符号时的KSRS=(0,1,2,3),对应UpPTS中存在2个连续符号时的KSRS=(2,3);子帧索引6对应UpPTS中存在2个连续符号时的KSRS=(5,6,7,8),对应UpPTS中存在1个连续符号时的KSRS=(7,8)。
可选地,在本申请实施例中,该至少两个SRS配置包括第一SRS配置、第二SRS配置和第三SRS配置;该第一SRS配置包括第一ISRS,该第二SRS配置包括第二ISRS,该第三SRS配置包括第三ISRS;其中,
该第一ISRS对应于该至少两个符号集合中第一符号集合中的符号;
该第二ISRS和该第三ISRS分别对应于该至少两个符号集合中第二符号集合中的符号,其中,该第二ISRS对应的符号与该第三ISRS对应的符号各不相同。
可选地,在第一方面的一种实现方式中,至少两个符号集合中任意两个符号集合之间具有符号间隔。
可选地,SRS的触发类型不同,该第一ISRS、该第二ISRS和该第三ISRS查询的表不同,该第一ISRS、该第二ISRS和该第三ISRS对应的值不同;
当SRS的触发类型为0时,该第一ISRS、该第二ISRS和该第三ISRS查询表1;
当SRS的触发类型为1时,该第一ISRS查询表3,该第二ISRS和该第三ISRS查询表2。
可选地,当SRS的触发类型为0时,该第一SRS配置包括第一ISRS,该第一SRS配置可以是基于LTE Release13版本之前的为UE配置UpPTS部分中的1-2个符号的配置策略实现,该第一ISRS可以从表1中选择,该KSRS可以从表6中选择,第一ISRS为0,第一ISRS=0对应的子帧偏移量Toffset为(0,1),子帧偏移量Toffset(0,1)映射的符号位置KSRS为(0,1);
当SRS的触发类型为0时,该第二SRS配置包括第二ISRS,该第二SRS配置可以是基于LTE Release13版本的为UE配置UpPTS部分中的2或4个符号中的1-2个符号的配置策略实现,该第二ISRS可以从表1中选择,该KSRS可以从表7中选择;
当SRS的触发类型为0时,该第三SRS配置包括第三ISRS,该第三SRS配置可以是基于LTE Release13版本的为UE配置UpPTS部分中的2或4个符号中的1-2个符号的配置策略实现,该第三ISRS可以从表1中选择,该KSRS可以从表7中选择。
具体地,第二ISRS为0,第二ISRS=0对应的子帧偏移量Toffset为(0,1),子帧偏移量Toffset(0,1)映射的符号位置KSRS为(0,1);第三ISRS为7,第三ISRS=7对应的子帧偏移量Toffset为(2,3),子帧偏移量Toffset(2,3)映射的符号位置KSRS为(2,3);或
第二ISRS为1,第二ISRS=1对应的子帧偏移量Toffset为(0,2),子帧偏移量Toffset(0,2)映射的符号位置KSRS为(0,2);第三ISRS为4,第三ISRS=4对应的子帧偏移量Toffset为(1,3);子帧偏移量Toffset(1,3)映射的符号位置KSRS为(1,3);或
第二ISRS为2,第二ISRS=2对应的子帧偏移量Toffset为(1,2),子帧偏移量Toffset(1,2)映射的符号位置KSRS为(1,2);第三ISRS为3,第三ISRS=3对应的子帧偏移量Toffset为(0,3);子帧偏移量Toffset(0,3)映射的符号位置KSRS为(0,3)。
应理解,第一ISRS对应的子帧偏移量Toffset可以映射第一符号集合中的2个符号位置,第二ISRS对应的子帧偏移量Toffset可以映射第二符号集合中的2个符号位置,第三ISRS对应的子帧偏移量Toffset可以映射第二符号集合中的2个符号位置;第二ISRS对应的子帧偏移量Toffset映射的第二符号集合中的2个符号位置与第三ISRS对应的子帧偏移量Toffset映射的第二符号集合中的2个符号位置各不相同。
应理解,终端设备根据符号位置KSRS就可以确定具体发送SRS的符号。
可选地,当SRS的触发类型为1时,该第一SRS配置包括第一ISRS,该第一SRS配置可以是基于LTE Release13版本之前的为UE配置UpPTS部分中的1-2个符号的配置策略实现,该第一ISRS可以从表3中选择,该KSRS可以从表6中选择,第一ISRS为0,第一ISRS=0对应的子帧偏移量Toffset为(0,1),子帧偏移量Toffset(0,1)映射的符号位置KSRS为(0,1);
当SRS的触发类型为1时,该第二SRS配置包括第二ISRS,该第二SRS配置可以是基于LTE Release13版本的为UE配置UpPTS部分中的2或4个符号中的1-2个符号的配置策略实现,该第二ISRS可以从表2中选择,该KSRS可以从表7中选择;
当SRS的触发类型为1时,该第三SRS配置包括第三ISRS,该第三SRS配置可以是基于LTE Release13版本的为UE配置UpPTS部分中的2或4个符号中的1-2个符号的配置策略实现,该第三ISRS可以从表2中选择,该KSRS可以从表7中选择。
具体地,第二ISRS为1,第二ISRS=1对应的子帧偏移量Toffset为(0,2),子帧偏移量Toffset(0,2)映射的符号位置KSRS为(0,2);第三ISRS为4,第三ISRS=4对应的子帧偏移量Toffset为(1,3);子帧偏移量Toffset(1,3)映射的符号位置KSRS为(1,3);或
第二ISRS为2,第二ISRS=2对应的子帧偏移量Toffset为(1,2),子帧偏移量Toffset(1,2)映射的符号位置KSRS为(1,2);第三ISRS为3,第三ISRS=3对应的子帧偏移量Toffset为(0,3);子帧偏移量Toffset(0,3)映射的符号位置KSRS为(0,3)。
应理解,第一ISRS对应的子帧偏移量Toffset可以映射第一符号集合中的2个符号位置,第二ISRS对应的子帧偏移量Toffset可以映射第二符号集合中的2个符号位置,第三ISRS对应的子帧偏移量Toffset可以映射第二符号集合中的2个符号位置;第二ISRS对应的子帧偏移量Toffset映射的第二符号集合中的2个符号位置与第三ISRS对应的子帧偏移量Toffset映射的第二符号集合中的2个符号位置各不相同。
应理解,终端设备根据符号位置KSRS就可以确定具体发送SRS的符号。
可选地,在本申请实施例中,该至少两个SRS配置包括第四SRS配置和第五SRS配置;该第四SRS配置包括第四ISRS,该第五SRS配置包括第 五ISRS
其中,该第四ISRS对应于该至少两个符号集合中第一符号集合中的符号;
该第五ISRS对应于该至少两个符号集合中第二符号集合中的符号。
可选地,SRS的触发类型不同,该第四ISRS和该第五ISRS查询的表不同,该第四ISRS和该第五ISRS对应的值不同;
当SRS的触发类型为0时,该第四ISRS查询表1,该第五查询表4;
当SRS的触发类型为1时,该第四ISRS查询表3,该第五ISRS查询表5。
可选地,当SRS的触发类型为0时,该第四SRS配置包括第四ISRS,该第四SRS配置可以是基于LTE Release13版本之前的为UE配置UpPTS部分中的1-2个符号的配置策略实现,该第四ISRS可以从表1中选择,该KSRS可以从表6中选择,第四ISRS为0,第四ISRS=0对应的子帧偏移量Toffset为(0,1),子帧偏移量Toffset(0,1)映射的符号位置KSRS为(0,1);
当SRS的触发类型为0时,该第五SRS配置包括第五ISRS,该第五SRS配置可以是基于一种全新的配置策略,为UE配置UpPTS部分中4个符号来实现,该第五ISRS可以从表4中选择,该KSRS可以从表7中选择。
具体地,第五ISRS为645,第二ISRS=645对应的子帧偏移量Toffset为(0,1,2,3),子帧偏移量Toffset(0,1,2,3)映射的符号位置KSRS为(0,1,2,3);或
第五ISRS为646,第二ISRS=646对应的子帧偏移量Toffset为(5,6,7,8),子帧偏移量Toffset(5,6,7,8)映射的符号位置KSRS为(5,6,7,8)。
可选地,第一ISRS对应的子帧偏移量Toffset可以映射第一符号集合中的2个符号位置,第五ISRS对应的子帧偏移量Toffset可以映射第二符号集合中的4个符号位置。
应理解,终端设备根据符号位置KSRS就可以确定具体发送SRS的符号。
可选地,当SRS的触发类型为1时,该第四SRS配置包括第四ISRS,该第四SRS配置可以是基于LTE Release13版本之前的为UE配置UpPTS部分中的1-2个符号的配置策略实现,该第四ISRS可以从表3中选择,该KSRS可以从表6中选择,第四ISRS为0,第四ISRS=0对应的子帧偏移量Toffset为(0,1),子帧偏移量Toffset(0,1)映射的符号位置KSRS为(0,1);
当SRS的触发类型为1时,该第五SRS配置包括第五ISRS,该第五SRS配置可以是基于一种全新的配置策略,为UE配置UpPTS部分中4个符号来 实现,该第五ISRS可以从表5中选择,该KSRS可以从表7中选择。
具体地,第五ISRS为25,第二ISRS=25对应的子帧偏移量Toffset为(0,1,2,3),子帧偏移量Toffset(0,1,2,3)映射的符号位置KSRS为(0,1,2,3);或
第五ISRS为26,第二ISRS=26对应的子帧偏移量Toffset为(5,6,7,8),子帧偏移量Toffset(5,6,7,8)映射的符号位置KSRS为(5,6,7,8)。
可选地,第一ISRS对应的子帧偏移量Toffset可以映射第一符号集合中的2个符号位置,第五ISRS对应的子帧偏移量Toffset可以映射第二符号集合中的4个符号位置。
可选地,终端设备根据符号位置KSRS就可以确定具体发送SRS的符号。
可选地,在本申请实施例中,该至少两个SRS配置对应的SRS触发类型为第一触发类型或第二触发类型;其中,
当该至少两个SRS配置对应的SRS触发类型为第一触发类型时,该至少两个SRS配置和该指示消息用于指示该终端设备在该第二符号上发送SRS;或
当该至少两个SRS配置对应的SRS类型为第二触发类型时,该方法还包括:在子帧n向该终端设备发送SRS请求,以用于指示该终端设备在该指示消息指示的且第一个满足n+k的特殊子帧的UpPTS部分的第二符号上,发送SRS,其中,k为大于或者等于4的整数。
可选地,该至少两个SRS配置对应的SRS触发类型为第一触发类型或第二触发类型,该第一触发类型可以是触发类型0,该第二触发类型可以是触发类型1。
可选地,当该至少两个SRS配置对应的SRS触发类型为第一触发类型时,该至少两个SRS配置和该指示消息共同作用,用于指示该终端设备在该第二符号上发送SRS。
可选地,SRS触发类型为第一触发类型时,该指示消息指示需要发送SRS的终端设备在周期性出现的特殊子帧上的UpPTS部分发送SRS。
可选地,当该至少两个SRS配置对应的SRS类型为第二触发类型时,网络设备在子帧n向该终端设备发送SRS请求,该请求用于指示该终端设备在该指示消息指示的且第一个满足n+k的特殊子帧的UpPTS部分的第二符号上,发送SRS,其中,k为大于或者等于4的整数。
可选地,在子帧n向该终端设备发送SRS请求,网络设备发送的该指示 消息指示的特殊子帧可以是多个,但是只在第一个满足n+k的特殊子帧的UpPTS部分的第二符号上,发送SRS,其中,k为大于或者等于4的整数;
此时,发送SRS的符号可以是第一个满足n+k的特殊子帧的UpPTS部分的第二符号中的部分符号,也可以是第一个满足n+k的特殊子帧的UpPTS部分的第二符号中的全部符号。
可选地,在本申请实施例中,该方法应用于时分双工TDD系统。
因此,在本申请实施例中,网络设备向终端设备发送指示消息,指示终端设备在无线帧中两个特殊子帧中的至少一个特殊子帧的UpPTS部分的符号上发送SRS,能够明显减少SRS传输的信令开销。
并且进一步地,在指示终端设备在无线帧中两个特殊子帧中的至少一个特殊子帧的UpPTS部分的符号上发送SRS,避免由于需要频繁切换载波,从而可以减少载波切换开销。
图5是根据本申请实施例的网络设备300的示意性框图。如图5所示,该网络设备300包括发送单元310和接收单元320。
其中,发送单元310用于向终端设备发送指示消息,该指示消息用于指示该终端设备在第一符号中的第二符号上发送SRS,该第一符号为无线帧中两个特殊子帧的上行链路导频时隙UpPTS部分的符号,该第二符号为该两个特殊子帧中至少一个特殊子帧的UpPTS部分的符号;接收单元320用于在该第二符号上,接收该终端设备发送的SRS。
可选地,该发送单元310还用于:
向该终端设备发送至少两个SRS配置,该至少两个SRS配置包括至少两个SRS配置索引ISRS,该至少两个ISRS对应于该第一符号。
可选地,该UpPTS部分的符号包括两个符号集合,该两个符号集合没有交集;
该至少两个SRS配置用于指示该两个符号集合中的至少一个集合中的符号,该ISRS用于指示SRS子帧偏移量以及SRS周期,以用于确定该符号集合中的符号。
可选地,该至少两个SRS配置包括第一SRS配置、第二SRS配置和第三SRS配置;该第一SRS配置包括第一ISRS,该第二SRS配置包括第二ISRS,该第三SRS配置包括第三ISRS;其中,
该第一ISRS对应于该至少两个符号集合中第一符号集合中的符号;
该第二ISRS和该第三ISRS分别对应于该至少两个符号集合中第二符号集合中的符号,其中,该第二ISRS对应的符号与该第三ISRS对应的符号各不相同。
可选地,该至少两个SRS配置包括第四SRS配置和第五SRS配置;该第四SRS配置包括第四ISRS,该第五SRS配置包括第五ISRS
其中,该第四ISRS对应于该至少两个符号集合中第一符号集合中的符号;
该第五ISRS对应于该至少两个符号集合中第二符号集合中的符号。
可选地,该第五ISRS对应四个子帧偏移量,该四个子帧偏移量对应于该第二符号集合中的四个符号。
可选地,该至少两个SRS配置对应的SRS触发类型为第一触发类型或第二触发类型;其中,
当该至少两个SRS配置对应的SRS触发类型为第一触发类型时,该至少两个SRS配置和该指示消息用于指示该终端设备在该第二符号上发送SRS;或
当该至少两个SRS配置对应的SRS类型为第二触发类型时,该发送单元310还用于:在子帧n向该终端设备发送SRS请求,以用于指示该终端设备在该指示消息指示的且第一个满足n+k的特殊子帧的UpPTS部分的第二符号上,发送SRS,其中,k为大于或者等于4的整数。
可选地,该设备300应用于TDD系统。
应理解,根据本申请实施例的网络设备300中的各个单元的上述和其它操作和/或功能分别为了实现图4中的方法200的网络设备的相应流程,为了简洁,在此不再赘述。
图6是根据本申请实施例的终端设备400的示意性框图。如图6所示,该终端设备400包括接收单元410和发送单元420。
其中,接收单元410用于接收网络设备发送的指示消息,该指示消息用于指示该终端设备在第一符号中的第二符号上发送SRS,该第一符号为无线帧中两个特殊子帧的上行链路导频时隙UpPTS部分的符号,该第二符号为该两个特殊子帧中至少一个特殊子帧UpPTS部分的符号;发送单元420用于在该第二符号上,向该网络设备发送SRS。
可选地,该接收单元410还用于:接收该网络设备发送的至少两个SRS配置;其中,该至少两个SRS配置包括至少两个SRS配置索引ISRS,该至少 两个ISRS对应于该第一符号,以用于根据该至少两个SRS配置,确定该第一符号;
可选地,该UpPTS部分的符号包括两个符号集合,两个符号集合没有交集;
该至少两个SRS配置用于指示该两个符号集合中的至少一个集合中的符号;该ISRS用于指示SRS子帧偏移量以及SRS周期,以用于确定符号集合中的符号。
可选地,该至少两个SRS配置包括第一SRS配置、第二SRS配置和第三SRS配置;该第一SRS配置包括第一ISRS,该第二SRS配置包括第二ISRS,该第三SRS配置包括第三ISRS;其中,
该第一ISRS对应于该至少两个符号集合中第一符号集合中的符号;
该第二ISRS和该第三ISRS分别对应于该至少两个符号集合中第二符号集合中的符号,其中,该第二ISRS对应的符号与该第三ISRS对应的符号各不相同。
可选地,该至少两个SRS配置包括第四SRS配置和第五SRS配置;该第四SRS配置包括第四ISRS,该第五SRS配置包括第五ISRS
其中,该第四ISRS对应于该至少两个符号集合中第一符号集合中的符号;
该第五ISRS对应于该至少两个符号集合中第二符号集合中的符号。
可选地,该第五ISRS对应四个子帧偏移量,该四个子帧偏移量对应于该第二符号集合中的四个符号。
可选地,该至少两个SRS配置对应的SRS触发类型为第一触发类型或第二触发类型;其中,
当该至少两个SRS配置对应的SRS触发类型为第一触发类型时,该至少两个SRS配置和该指示消息用于指示在该第二符号上向该网络设备发送SRS;或
当该至少两个SRS配置对应的SRS类型为第二触发类型时,该接收单元410还用于:在子帧n上接收该网络设备发送的SRS请求;发送单元420用于:在该指示消息指示的且第一个满足n+k的特殊子帧的UpPTS部分的第二符号上,发送SRS,其中,k为大于或者等于4的整数。
可选地,该终端设备应用于时分双工TDD系统。
应理解,根据本申请实施例的终端设备400中的各个单元的上述和其它 操作和/或功能分别为了实现图4中的方法200的终端设备的相应流程,为了简洁,在此不再赘述。
图7示出了本申请实施例提供的通信装置500的示意性框图,该通信装置500包括:
存储器510,用于存储程序;
收发器520,用于和其他设备进行通信;
处理器530,用于执行存储器510中的程序。
可选地,当该代码被执行时,该处理器530可以实现方法中终端设备执行各个操作,为了简洁,在此不再赘述。此时,通信装置500可以为终端设备。
可选地,当该代码被执行时,该处理器530可以实现方法中网络设备执行各个操作,为了简洁,在此不再赘述。此时,通信装置500可以为网络设备。
应理解,在本申请实施例中,该处理器530可以是中央处理单元(Central Processing Unit,简称为“CPU”),该处理器530还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器510可以包括只读存储器和随机存取存储器,并向处理器530提供指令和数据。存储器510的一部分还可以包括非易失性随机存取存储器。例如,存储器510还可以存储设备类型的信息。
在实现过程中,上述方法的各步骤可以通过处理器530中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器530读取存储器中的信息,结合其硬件完成上述方法的步骤。为避免重复,这里不再详细描述。
应理解,在本申请的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本申请实施例的实施过程构成任何限定。
本领普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,该单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
该作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
该功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例该方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上该,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以该权利要求的保护范围为准。

Claims (32)

  1. 一种传输探测参考信号SRS的方法,其特征在于,包括:
    网络设备向终端设备发送指示消息,所述指示消息用于指示所述终端设备在第一符号中的第二符号上发送SRS,所述第一符号为无线帧中两个特殊子帧的上行链路导频时隙UpPTS部分的符号,所述第二符号为所述两个特殊子帧中至少一个特殊子帧的UpPTS部分的符号;
    在所述第二符号上,所述网络设备接收所述终端设备发送的SRS。
  2. 根据权利要求1所述的方法,其特征在于,所述方法还包括:
    所述网络设备向所述终端设备发送至少两个SRS配置,所述至少两个SRS配置包括至少两个SRS配置索引ISRS,所述至少两个ISRS对应于所述第一符号。
  3. 根据权利要求2所述的方法,其特征在于,所述UpPTS部分的符号包括两个符号集合,所述两个符号集合没有交集;
    所述至少两个SRS配置用于指示所述两个符号集合中的至少一个集合中的符号,所述ISRS用于指示SRS子帧偏移量以及SRS周期,以用于确定所述符号集合中的符号。
  4. 根据权利要求3所述的方法,其特征在于,所述至少两个SRS配置包括第一SRS配置、第二SRS配置和第三SRS配置;所述第一SRS配置包括第一ISRS,所述第二SRS配置包括第二ISRS,所述第三SRS配置包括第三ISRS;其中,
    所述第一ISRS对应于所述至少两个符号集合中第一符号集合中的符号;
    所述第二ISRS和所述第三ISRS分别对应于所述至少两个符号集合中第二符号集合中的符号,其中,所述第二ISRS对应的符号与所述第三ISRS对应的符号各不相同。
  5. 根据权利要求3所述的方法,其特征在于,所述至少两个SRS配置包括第四SRS配置和第五SRS配置;所述第四SRS配置包括第四ISRS,所述第五SRS配置包括第五ISRS
    其中,所述第四ISRS对应于所述至少两个符号集合中第一符号集合中的符号;
    所述第五ISRS对应于所述至少两个符号集合中第二符号集合中的符号。
  6. 根据权利要求5所述的方法,其特征在于,所述第五ISRS对应四个 子帧偏移量,所述四个子帧偏移量对应于所述第二符号集合中的四个符号。
  7. 根据权利要求2至6中任一所述的方法,其特征在于,所述至少两个SRS配置对应的SRS触发类型为第一触发类型或第二触发类型;其中,
    当所述至少两个SRS配置对应的SRS触发类型为第一触发类型时,所述至少两个SRS配置和所述指示消息用于指示所述终端设备在所述第二符号上发送SRS;或
    当所述至少两个SRS配置对应的SRS类型为第二触发类型时,所述方法还包括:在子帧n向所述终端设备发送SRS请求,以用于指示所述终端设备在所述指示消息指示的且第一个满足n+k的特殊子帧的UpPTS部分的第二符号上,发送SRS,其中,k为大于或者等于4的整数。
  8. 根据权利要求1至7中任一所述的方法,其特征在于,所述方法应用于时分双工TDD系统。
  9. 一种传输探测参考信号SRS的方法,其特征在于,包括:
    终端设备接收网络设备发送的指示消息,所述指示消息用于指示所述终端设备在第一符号中的第二符号上发送SRS,所述第一符号为无线帧中两个特殊子帧的上行链路导频时隙UpPTS部分的符号,所述第二符号为所述两个特殊子帧中至少一个特殊子帧UpPTS部分的符号;
    在所述第二符号上,所述终端设备向所述网络设备发送SRS。
  10. 根据权利要求9所述的方法,其特征在于,所述方法还包括:
    所述终端设备接收所述网络设备发送的至少两个SRS配置;其中,所述至少两个SRS配置包括至少两个SRS配置索引ISRS,所述至少两个ISRS对应于所述第一符号;
    所述终端设备根据所述至少两个SRS配置,确定所述第一符号;
  11. 根据权利要求10所述的方法,其特征在于,所述UpPTS部分的符号包括两个符号集合,两个符号集合没有交集;
    所述至少两个SRS配置用于指示所述两个符号集合中的至少一个集合中的符号;所述ISRS用于指示SRS子帧偏移量以及SRS周期,以用于确定符号集合中的符号。
  12. 根据权利要求11所述的方法,其特征在于,所述至少两个SRS配置包括第一SRS配置、第二SRS配置和第三SRS配置;所述第一SRS配置包括第一ISRS,所述第二SRS配置包括第二ISRS,所述第三SRS配置包括第 三ISRS;其中,
    所述第一ISRS对应于所述至少两个符号集合中第一符号集合中的符号;
    所述第二ISRS和所述第三ISRS分别对应于所述至少两个符号集合中第二符号集合中的符号,其中,所述第二ISRS对应的符号与所述第三ISRS对应的符号各不相同。
  13. 根据权利要求11所述的方法,其特征在于,所述至少两个SRS配置包括第四SRS配置和第五SRS配置;所述第四SRS配置包括第四ISRS,所述第五SRS配置包括第五ISRS
    其中,所述第四ISRS对应于所述至少两个符号集合中第一符号集合中的符号;
    所述第五ISRS对应于所述至少两个符号集合中第二符号集合中的符号。
  14. 根据权利要求13所述的方法,其特征在于,所述第五ISRS对应四个子帧偏移量,所述四个子帧偏移量对应于所述第二符号集合中的四个符号。
  15. 根据权利要求10至14中任一所述的方法,其特征在于,所述至少两个SRS配置对应的SRS触发类型为第一触发类型或第二触发类型;其中,
    当所述至少两个SRS配置对应的SRS触发类型为第一触发类型时,所述至少两个SRS配置和所述指示消息用于指示在所述第二符号上向所述网络设备发送SRS;或
    当所述至少两个SRS配置对应的SRS类型为第二触发类型时,所述方法还包括:在子帧n上接收所述网络设备发送的SRS请求;所述向所述网络设备发送SRS,包括:在所述指示消息指示的且第一个满足n+k的特殊子帧的UpPTS部分的第二符号上,发送SRS,其中,k为大于或者等于4的整数。
  16. 根据权利要求9至15中任一所述的方法,其特征在于,所述方法应用于时分双工TDD系统。
  17. 一种网络设备,其特征在于,包括:
    发送单元,用于向终端设备发送指示消息,所述指示消息用于指示所述终端设备在第一符号中的第二符号上发送SRS,所述第一符号为无线帧中两个特殊子帧的上行链路导频时隙UpPTS部分的符号,所述第二符号为所述两个特殊子帧中至少一个特殊子帧的UpPTS部分的符号;
    接收单元,用于在所述第二符号上,接收所述终端设备发送的SRS。
  18. 根据权利要求17所述的设备,其特征在于,所述发送单元还用于:
    向所述终端设备发送至少两个SRS配置,所述至少两个SRS配置包括至少两个SRS配置索引ISRS,所述至少两个ISRS对应于所述第一符号。
  19. 根据权利要求18所述的设备,其特征在于,所述UpPTS部分的符号包括两个符号集合,所述两个符号集合没有交集;
    所述至少两个SRS配置用于指示所述两个符号集合中的至少一个集合中的符号,所述ISRS用于指示SRS子帧偏移量以及SRS周期,以用于确定所述符号集合中的符号。
  20. 根据权利要求19所述的设备,其特征在于,所述至少两个SRS配置包括第一SRS配置、第二SRS配置和第三SRS配置;所述第一SRS配置包括第一ISRS,所述第二SRS配置包括第二ISRS,所述第三SRS配置包括第三ISRS;其中,
    所述第一ISRS对应于所述至少两个符号集合中第一符号集合中的符号;
    所述第二ISRS和所述第三ISRS分别对应于所述至少两个符号集合中第二符号集合中的符号,其中,所述第二ISRS对应的符号与所述第三ISRS对应的符号各不相同。
  21. 根据权利要求19所述的设备,其特征在于,所述至少两个SRS配置包括第四SRS配置和第五SRS配置;所述第四SRS配置包括第四ISRS,所述第五SRS配置包括第五ISRS
    其中,所述第四ISRS对应于所述至少两个符号集合中第一符号集合中的符号;
    所述第五ISRS对应于所述至少两个符号集合中第二符号集合中的符号。
  22. 根据权利要求21所述的设备,其特征在于,所述第五ISRS对应四个子帧偏移量,所述四个子帧偏移量对应于所述第二符号集合中的四个符号。
  23. 根据权利要求18至22中任一所述的设备,其特征在于,所述至少两个SRS配置对应的SRS触发类型为第一触发类型或第二触发类型;其中,
    当所述至少两个SRS配置对应的SRS触发类型为第一触发类型时,所述至少两个SRS配置和所述指示消息用于指示所述终端设备在所述第二符号上发送SRS;或
    当所述至少两个SRS配置对应的SRS类型为第二触发类型时,所述发 送单元还用于:在子帧n向所述终端设备发送SRS请求,以用于指示所述终端设备在所述指示消息指示的且第一个满足n+k的特殊子帧的UpPTS部分的第二符号上,发送SRS,其中,k为大于或者等于4的整数。
  24. 根据权利要求17至23中任一所述的设备,其特征在于,所述设备应用于时分双工TDD系统。
  25. 一种终端设备,其特征在于,包括:
    接收单元,用于接收网络设备发送的指示消息,所述指示消息用于指示所述终端设备在第一符号中的第二符号上发送SRS,所述第一符号为无线帧中两个特殊子帧的上行链路导频时隙UpPTS部分的符号,所述第二符号为所述两个特殊子帧中至少一个特殊子帧UpPTS部分的符号;
    发送单元,用于在所述第二符号上,向所述网络设备发送SRS。
  26. 根据权利要求25所述的设备,其特征在于,所述接收单元还用于:
    接收所述网络设备发送的至少两个SRS配置;其中,所述至少两个SRS配置包括至少两个SRS配置索引ISRS,所述至少两个ISRS对应于所述第一符号,以用于根据所述至少两个SRS配置,确定所述第一符号;
  27. 根据权利要求26所述的设备,其特征在于,所述UpPTS部分的符号包括两个符号集合,两个符号集合没有交集;
    所述至少两个SRS配置用于指示所述两个符号集合中的至少一个集合中的符号;所述ISRS用于指示SRS子帧偏移量以及SRS周期,以用于确定符号集合中的符号。
  28. 根据权利要求27所述的设备,其特征在于,所述至少两个SRS配置包括第一SRS配置、第二SRS配置和第三SRS配置;所述第一SRS配置包括第一ISRS,所述第二SRS配置包括第二ISRS,所述第三SRS配置包括第三ISRS;其中,
    所述第一ISRS对应于所述至少两个符号集合中第一符号集合中的符号;
    所述第二ISRS和所述第三ISRS分别对应于所述至少两个符号集合中第二符号集合中的符号,其中,所述第二ISRS对应的符号与所述第三ISRS对应的符号各不相同。
  29. 根据权利要求27所述的设备,其特征在于,所述至少两个SRS配置包括第四SRS配置和第五SRS配置;所述第四SRS配置包括第四ISRS,所述第五SRS配置包括第五ISRS
    其中,所述第四ISRS对应于所述至少两个符号集合中第一符号集合中的符号;
    所述第五ISRS对应于所述至少两个符号集合中第二符号集合中的符号。
  30. 根据权利要求29所述的设备,其特征在于,所述第五ISRS对应四个子帧偏移量,所述四个子帧偏移量对应于所述第二符号集合中的四个符号。
  31. 根据权利要求26至30中任一所述的设备,其特征在于,所述至少两个SRS配置对应的SRS触发类型为第一触发类型或第二触发类型;其中,
    当所述至少两个SRS配置对应的SRS触发类型为第一触发类型时,所述至少两个SRS配置和所述指示消息用于指示在所述第二符号上向所述网络设备发送SRS;或
    当所述至少两个SRS配置对应的SRS类型为第二触发类型时,所述接收单元还用于:在子帧n上接收所述网络设备发送的SRS请求;所述发送单元还用于:在所述指示消息指示的且第一个满足n+k的特殊子帧的UpPTS部分的第二符号上,发送SRS,其中,k为大于或者等于4的整数。
  32. 根据权利要求25至31中任一所述的设备,其特征在于,所述设备应用于时分双工TDD系统。
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