WO2020114453A1 - Srs传输的方法、接入网设备和终端设备 - Google Patents

Srs传输的方法、接入网设备和终端设备 Download PDF

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Publication number
WO2020114453A1
WO2020114453A1 PCT/CN2019/123287 CN2019123287W WO2020114453A1 WO 2020114453 A1 WO2020114453 A1 WO 2020114453A1 CN 2019123287 W CN2019123287 W CN 2019123287W WO 2020114453 A1 WO2020114453 A1 WO 2020114453A1
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Prior art keywords
srs
symbols
time domain
domain resource
symbol
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PCT/CN2019/123287
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English (en)
French (fr)
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WO2020114453A9 (zh
Inventor
金涛
陈卫
郑晓军
薛春林
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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 EP19893111.5A priority Critical patent/EP3879901B1/en
Publication of WO2020114453A1 publication Critical patent/WO2020114453A1/zh
Priority to US17/338,746 priority patent/US11996959B2/en
Publication of WO2020114453A9 publication Critical patent/WO2020114453A9/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • 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
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows

Definitions

  • the present application relates to the field of communication technology, and more specifically, to a method of SRS transmission, access network equipment, and terminal equipment.
  • the terminal device can send uplink data to the access network device through an uplink physical shared channel (physical uplink shared channel, PUSCH).
  • the terminal device may also send a channel sounding reference signal (SRS) to the access network device.
  • SRS channel sounding reference signal
  • the access network device may perform a process based on the received SRS. Channel estimation.
  • This application provides an SRS transmission method, an access network device, and a terminal device, which can allocate more symbols to transmit the SRS, so that a more accurate channel estimation can be performed according to the SRS.
  • a method for SRS transmission includes: sending channel sounding reference signal SRS time domain resource indication information to a terminal device, the SRS time domain resource indication information indicating SRS time domain resource, and the SRS time
  • the domain resource includes at least one of the first symbol to the eighth symbol of the first time slot; receiving the SRS from the terminal device on the SRS time domain resource.
  • the first time slot is an uplink time slot or a special time slot.
  • the uplink time slot may be a time slot composed entirely of uplink symbols, and the special time slot may be a time slot composed of uplink symbols and downlink symbols.
  • the above method may be performed by an access network device or a chip in the access network device.
  • the above terminal device may be a device located within the network coverage of the access network device.
  • At least one symbol from one symbol in the first slot to the eighth symbol can be used to transmit the SRS, and in the conventional scheme, up to four symbols from the last six symbols of a certain slot can be used Compared with the method of transmitting SRS, more symbols can be allocated to transmit SRS, so that the access network device can perform more accurate channel estimation according to the received SRS, which can further improve the downlink throughput rate.
  • the number of symbols in the first time slot may be 14, and some or all symbols in the first time slot may be used to transmit SRS.
  • the SRS time domain resource further includes M symbols from the 9th symbol to the 14th symbol of the first slot, where M is a positive integer .
  • This application can use any number of symbols in the last 6 symbols of the first time slot to transmit the SRS, and in the traditional scheme, only a fixed number of symbols in the last 6 symbols in a certain time slot can be used (often used One of the six symbols, two symbols or four symbols) can be used to transmit SRS more flexibly than the symbol used to transmit SRS.
  • any part of the symbols in the first 8 symbols of the first time slot and any part of the symbols in the last 6 symbols of the first time slot can be used to transmit SRS, which can only be used in a certain time slot in the traditional scheme.
  • it can allocate symbols for transmitting SRS more flexibly and more SRS is used to transmit SRS, so that the access network device can perform more accurate channel estimation according to the received SRS, which can further improve the downlink throughput rate.
  • the symbols in the SRS time-domain resources are continuous.
  • the symbols in the SRS time-domain resources are non-contiguous.
  • a method for SRS transmission includes: sending channel sounding reference signal SRS time domain resource indication information to a terminal device, the SRS time domain resource indication information indicating SRS time domain resource, and the SRS time
  • the domain resource is composed of 3 symbols or 5 symbols or 6 symbols from the 9th symbol to the 14th symbol of the first time slot; receiving the SRS from the terminal device on the SRS time domain resource.
  • the above method may be performed by an access network device or a chip in the access network device.
  • the first time slot is an uplink time slot or a special time slot.
  • the access network device can receive the SRS sent by the terminal device on the 3 symbols, 5 symbols or 6 symbols of the last 6 symbols of the first time slot, which can use at most a certain time slot in the traditional solution 4 of the last 6 symbols are used to transmit SRS (this application can allocate up to all the symbols in the last 6 symbols of a certain time slot to transmit SRS, while the traditional solution can only allocate the last 6 of a certain time slot at most 4 symbols), more symbols can be allocated to transmit SRS, so that the access network device can perform more accurate channel estimation according to the received SRS, which can further improve the downlink throughput rate.
  • the symbols in the SRS time-domain resources are continuous.
  • the SRS time domain resource is composed of 3 symbols or 5 symbols from the 9th symbol to the 14th symbol of the first slot
  • the symbols in the SRS time domain resources are non-contiguous.
  • the SRS can be transmitted using multiple consecutive symbols in the last 6 symbols of a certain time slot, or multiple non-contiguous symbols among the last 6 symbols of a certain time slot can be used to transmit SRS, which is different from the traditional scheme.
  • the traditional SRS in this application is more flexible.
  • a method for SRS transmission includes: receiving channel sounding reference signal SRS time domain resource indication information from an access network device, the SRS time domain resource indication information indicating SRS time domain resource, the The SRS time domain resource includes at least one of the 1st symbol to the 8th symbol of the first time slot; SRS is sent to the access network device on the SRS time domain resource.
  • the above method may be executed by a terminal device or a chip in the terminal device.
  • the terminal device may be a device within the network coverage of the access network device.
  • the SRS time domain resource further includes M symbols from the 9th symbol to the 14th symbol of the first slot, where M is a positive integer .
  • any part of the symbols in the first 8 symbols of the first time slot and any part of the symbols in the last 6 symbols of the first time slot can be used to transmit SRS, which can only be used in a certain time slot in the traditional scheme.
  • One of the last 6 symbols, 2 symbols, or 4 symbols to transmit SRS can be more flexibly allocated to the symbols used to transmit SRS, and more symbols can be used to transmit SRS, so that The access network device can perform more accurate channel estimation according to the received SRS, which can further improve the downlink throughput rate.
  • the symbols in the SRS time-domain resources are continuous.
  • the symbols in the SRS time-domain resources are non-contiguous.
  • a method for SRS transmission includes: receiving channel sounding reference signal SRS time domain resource indication information from an access network device, where the SRS time domain resource indication information indicates SRS time domain resource, the The SRS time domain resource is composed of 3 symbols, 5 symbols, or 6 symbols from the 9th symbol to the 14th symbol of the first time slot; sent to the access network device on the SRS time domain resource SRS.
  • the above method may be executed by a terminal device or a chip in the terminal device.
  • the terminal device may be a device within the network coverage of the access network device.
  • any part of the symbols in the first 8 symbols of the first time slot and any part of the symbols in the last 6 symbols of the first time slot can be used to transmit SRS, which can only be used in a certain time slot in the traditional scheme.
  • One of the last 6 symbols, 2 symbols, or 4 symbols to transmit SRS can be more flexibly allocated to the symbols used to transmit SRS, and more symbols can be used to transmit SRS, so that The access network device can perform more accurate channel estimation according to the received SRS, which can further improve the downlink throughput rate.
  • the symbols in the SRS time-domain resources are continuous.
  • the SRS time domain resource is composed of 3 symbols or 5 symbols from the 9th symbol to the 14th symbol of the first slot,
  • the symbols in the SRS time domain resources are non-contiguous.
  • the SRS can be transmitted using multiple consecutive symbols in the last 6 symbols of a certain time slot, or multiple non-contiguous symbols among the last 6 symbols of a certain time slot can be used to transmit SRS, which is different from the traditional scheme.
  • the traditional SRS in this application is more flexible.
  • an access network device includes units or modules for performing various implementations in the first aspect or the second aspect.
  • a terminal device includes units or modules for performing various implementations in the third aspect or the fourth aspect.
  • an access network device including: a memory and a processor, the processor calling program code stored in the memory to perform part or all of the steps of any one of the methods of the first aspect.
  • the above memory is a non-volatile memory.
  • the aforementioned memory and processor are coupled together.
  • a terminal device including: a memory and a processor, and the processor calls program codes stored in the memory to perform part or all of the steps of any one of the methods of the first aspect.
  • the above memory is a non-volatile memory.
  • the aforementioned memory and processor are coupled together.
  • a communication device in a ninth aspect, includes a processor.
  • the processor and a memory are coupled.
  • the memory is used to store a computer program or instruction.
  • the processor is used to execute the computer program in the memory. Or an instruction, so that the communication device executes the method in various implementation manners of any one of the first aspect, the second aspect, the third aspect, and the fourth aspect.
  • an embodiment of the present application provides a communication device.
  • the communication device may be a chip in an access network device.
  • the communication device includes a processor.
  • the processor is coupled to a memory.
  • the memory is used to store a computer program.
  • the processor is used to execute a computer program or instruction in the memory, so that the communication device executes the method in any one of the implementation manners of the first aspect or the second aspect.
  • the communication device further includes the Memory.
  • an embodiment of the present application provides a communication device.
  • the communication device may be a chip in a terminal device.
  • the communication device includes a processor.
  • the processor is coupled to a memory.
  • the memory is used to store a computer program or Instruction, the processor is used to execute a computer program or instruction in the memory, so that the communication device executes the method in any one of the implementation manners of the third aspect or the fourth aspect, optionally, the communication device further includes the memory .
  • a computer-readable storage medium storing program code, wherein the program code includes a method for performing any one of the first aspect or the second aspect Instructions for some or all steps.
  • an embodiment of the present application provides a computer program product, which, when the computer program product runs on a computer, causes the computer to perform part or all of the method of the first aspect or the second aspect step.
  • FIG. 1 is a schematic diagram of a possible application scenario of an embodiment of the present application
  • FIG. 2 is a schematic diagram of a possible application scenario of an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of an SRS transmission method according to an embodiment of the present application.
  • 4 is a schematic diagram of the uplink time slot, downlink time slot and special time slot
  • 5 is a schematic diagram of the distribution of N symbols
  • FIG. 8 is a schematic flowchart of an SRS transmission method according to an embodiment of the present application.
  • FIG. 11 is a schematic flowchart of an SRS transmission method according to an embodiment of the present application.
  • FIG. 12 is a schematic diagram of an SRS transmission method according to an embodiment of the present application.
  • FIG. 13 is a schematic block diagram of an access network device according to an embodiment of the present application.
  • FIG. 14 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • 15 is a schematic block diagram of an access network device according to an embodiment of the present application.
  • 16 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • 17 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 1 is a schematic diagram of a possible application scenario of an embodiment of the present application.
  • the communication system shown in FIG. 1 includes access network equipment, terminal equipment A, and terminal equipment B.
  • terminal device A and terminal device B are within the network coverage of the access network device
  • terminal device A can communicate with the access network device
  • terminal device A can communicate with the access network device, in order to estimate the channel state
  • the terminal device A and the terminal device B may send the SRS to the access network device, and after receiving the SRS, the access network device may perform channel estimation according to the SRS.
  • FIG. 1 only shows a communication system including two terminal devices and one network device.
  • the embodiments of the present application may also be applied to a communication system composed of any number of terminal devices and access network devices.
  • the embodiments of the present application can be applied to a wireless multi-frequency multi-standard system.
  • the system to which the embodiments of the present application can be applied includes but is not limited to a time division duplex (TDD) system, a frequency division duplex (FDD) system, and long term evolution (LTE) ) System, new radio (NR) system.
  • TDD time division duplex
  • FDD frequency division duplex
  • LTE long term evolution
  • NR new radio
  • the present application can also be applied to various networking scenarios.
  • the networking scenarios to which the embodiments of the present application can be applied include but are not limited to uplink and downlink decoupling, carrier aggregation (CA), and dual connectivity (dual connectivity (DC) networking scenario.
  • CA carrier aggregation
  • DC dual connectivity
  • the embodiments of the present application can also be applied to multiple transmission and reception forms.
  • the transmission and reception forms that can be applied to the embodiments of the present application include, but are not limited to, 2 antenna transmission/2 antenna reception (2T2R), 2 antenna transmission/4 antenna reception (2T4R ), 4-antenna transmission/4-antenna reception (4T4R), 8-antenna transmission/8-antenna reception (8T8R) and massive multiple-input multiple-output (MIMO).
  • the embodiments of the present application can also be specifically applied to communication systems of certain frequency bands.
  • the embodiments of the present application can be applied to an NR system of 3.5 GHz (Gigahertz) or 4.9 GHz, or 0.9 In LTE or NR communication systems in the GHz, 1.8GHz and 2.1GHz bands.
  • the terminal device in the embodiment of the present application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or User device.
  • Terminal devices can also be cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (personal digital assistants, PDAs), and wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or public land mobile communication networks (PLMN) in the future evolution
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDAs personal digital assistants
  • the terminal device and the like are not limited in this embodiment of the present application.
  • the access network device in the embodiment of the present application may be a device for communicating with a terminal device, and the access network device may be an evolved base station (evolved NodeB, eNB, or eNodeB) in an LTE system, or may be A wireless controller in a cloud radio access network (CRAN) scenario, or the access network device may be a relay station, an access point, an in-vehicle device, a wearable device, and an access network device in a future 5G network Or an access network device in a PLMN network that evolves in the future, etc., the embodiments of the present application are not limited.
  • the access network device may be an evolved base station (evolved NodeB, eNB, or eNodeB) in an LTE system, or may be A wireless controller in a cloud radio access network (CRAN) scenario, or the access network device may be a relay station, an access point, an in-vehicle device, a wearable device, and an access network device in a future 5
  • the terminal device or the access network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes central processing unit (CPU), memory management unit (memory management unit, MMU), and memory (also called main memory) and other hardware.
  • the operating system may be any one or more computer operating systems that implement business processes through processes, for example, 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 browser, address book, word processing software, instant messaging software and other applications.
  • the embodiment of the present application does not specifically limit the specific structure of the execution body of the method provided in the embodiment of the present application, as long as it can run the program that records the code of the method provided by the embodiment of the present application to provide according to the embodiment of the present application
  • the method may be used for communication.
  • the execution body of the method provided in the embodiments of the present application may be a terminal device or an access network device, or a functional module in the terminal device or the access network device that can call a program and execute the program.
  • time-domain resources allocated to SRS in the related schemes are very limited. For example, one of the last 6 symbols of a certain time slot or continuous 2 symbols or 4 consecutive symbols to transmit SRS.
  • SRS can also be allocated at least a part of the symbols from the first symbol to the eighth symbol of a certain time slot to transmit SRS. More symbols are used to transmit SRS, so that the access network device can perform more accurate channel estimation according to the received SRS, which can further improve the downlink throughput rate.
  • the terminal device in FIG. 3 may be terminal device A or terminal device B in the communication system shown in FIG. 1.
  • FIG. 3 is a schematic flowchart of an SRS transmission method according to an embodiment of the present application.
  • the method shown in FIG. 3 may include step 110 and step 120, and step 110 and step 120 will be described in detail below.
  • the access network device sends SRS time domain resource indication information to the terminal device, and the terminal device receives the SRS time domain resource indication information.
  • the SRS time domain resource indication information in the above step 110 is used to indicate the location of the SRS time domain resource, and the SRS time domain resource includes at least one symbol from the first symbol to the eighth symbol of the first slot.
  • the first time slot may be an uplink time slot or a special time slot.
  • the uplink time slot may be a time slot composed entirely of uplink symbols
  • the special time slot may include flexible symbols
  • the special time slot may also include uplink symbols and/or downlink symbols.
  • the first time slot may be the uplink time slot U in FIG. 4 or the special time slot S in FIG. 4.
  • the above-mentioned first time slot may contain 14 symbols.
  • all or part of the symbols in the first time slot may be used to transmit SRS.
  • the SRS time domain resources may include uplink time domain resources and/or flexible time domain resources.
  • each symbol of the SRS time domain resource may be an uplink symbol or a flexible symbol. That is to say, the SRS can be transmitted using an uplink symbol or a flexible symbol, and each symbol in at least one symbol from the first symbol to the eighth symbol of the first slot can be an uplink symbol or a flexible symbol.
  • the access network device may configure the terminal device with periodic SRS and aperiodic SRS, where the SRS time domain resource indication information may indicate the periodic SRS time domain resource location, the aperiodic SRS time domain resource location, or the semi-static SRS Time domain resource location.
  • the access network device may configure the terminal device with dynamic SRS or semi-static SRS.
  • the SRS time domain resource indication information may be through radio resource control (radio resource control (RRC) signaling, downlink control information (downlink control information, DCI), and/or media access control address control unit (media access control address control (element, MAC) CE).
  • RRC radio resource control
  • DCI downlink control information
  • MAC media access control address control
  • the terminal device sends the SRS to the access network device on the SRS time domain resource, and the access network device receives the SRS sent by the terminal device on the SRS time domain resource.
  • step 110 after the terminal device obtains the SRS time domain resource indication information, it can determine the location of the SRS time domain resource according to the SRS time domain resource indication information. Next, the terminal device can send the access network to the SRS time domain resource The device sends SRS.
  • the access network device may perform channel estimation according to the SRS. Therefore, the method shown in FIG. 3 may further include step 130.
  • the access network device performs channel estimation according to the SRS.
  • the access network device performs channel estimation according to the SRS sent by the terminal device, and then determines the channel state.
  • one symbol in the first time slot to at least one partial symbol in the eighth symbol can be used to transmit the SRS, and in the related scheme, at most 4 of the last 6 symbols in a certain time slot can be used Compared with the method of transmitting SRS, more symbols can be allocated to transmit SRS, so that the access network device can perform more accurate channel estimation according to the received SRS, which can further improve the downlink throughput rate.
  • the SRS time domain resource further includes M symbols from the 9th symbol to the 14th symbol of the first slot, where M is a positive integer.
  • each of the M symbols from the 9th symbol to the 14th symbol in the first slot may be an uplink symbol or a flexible symbol.
  • the value of M may be any value in 1-6.
  • any part of the symbols in the first 8 symbols of the first slot and any part of the symbols in the last 6 symbols of the first slot can be used to transmit the SRS, and in a related scheme, only a certain slot can be used
  • the symbols used for SRS transmission can be more flexibly allocated, and more SRS is used to transmit SRS, so that the access network device can perform more accurate channel estimation according to the received SRS, which can further improve the downlink throughput rate.
  • the symbols in the above SRS time domain resources are continuous.
  • the symbol continuity in the SRS time domain resource may refer to that the index of the arrangement position of the symbol in the SRS time domain resource sequentially differs by 1.
  • the symbols in the SRS time domain resource are continuous.
  • the symbols in the above SRS time domain resources are non-contiguous.
  • the above symbols in the SRS time domain resource are discontinuous. Specifically, it may mean that the indexes of the arrangement positions of the symbols in the SRS time domain resource are not sequentially different by 1.
  • the symbols in the SRS time domain resource are non-contiguous (The index of the arrangement position of the second symbol to the fourth symbol is sequentially different by 1, but the index of the arrangement position of the fourth symbol and the tenth symbol is greater than 1, therefore, the symbols in the SRS time domain resources are non-contiguous) .
  • the symbols in the SRS time domain resource are non-contiguous (the first symbol , the third symbol, and the fifth symbol is sequentially different by 2, therefore, the symbols in the SRS time domain resource are non-contiguous).
  • the SRS time domain resource may also be composed of any part of symbols in the first slot or all symbols of the first slot.
  • the SRS time domain resource is composed of N symbols in the first to eighth symbols in the first slot.
  • the SRS time domain resource may be composed of the second symbol, the third symbol, and the fourth symbol in the first slot.
  • the SRS time The symbols in the domain resource are continuous.
  • the SRS time domain resource may be composed of the second symbol, the third symbol, the fourth symbol, and the eighth symbol in the first slot.
  • the N symbols are non-contiguous.
  • the above N symbols may be continuous.
  • the symbols in the SRS time domain resource are non-contiguous.
  • SRS time domain resources are composed of N symbols in the first to eighth symbols in the first slot and M symbols in the ninth to 14th symbols in the first slot .
  • the SRS time domain resource may be composed of the 7th symbol, the 8th symbol, the 9th symbol, and the 10th symbol in the first slot.
  • the symbols in the SRS time-domain resources are continuous.
  • the SRS time domain resource may be composed of the second symbol, the third symbol, the fourth symbol, the seventh symbol, and the eighth symbol in the first slot
  • the symbol, the ninth symbol and the tenth symbol are composed.
  • the symbols in the SRS time domain resources are non-contiguous.
  • M can be 3, 5, and 6.
  • the SRS time domain resource may be from the second symbol to the fourth symbol in the first slot and the ninth symbol in the first slot Up to the 11th symbol, at this time, the symbols in the SRS time domain resources are non-contiguous.
  • the SRS time domain resource may be from the second symbol to the fourth symbol in the first slot and the ninth symbol in the first slot Up to the 11th symbol and the 13th and 14th symbols, at this time, the symbols in the SRS time-domain resources are non-contiguous.
  • the SRS time domain resource may be from the second symbol to the fourth symbol in the first slot and the ninth symbol in the first slot Up to the 14th symbol, at this time, the symbols in the SRS time domain resources are non-contiguous.
  • the above SRS time domain resource may include at least the first symbol in the first slot to the eighth symbol
  • the above SRS time domain resource may also be completely composed of the ninth in the first slot Symbol to the 14th symbol.
  • the above-mentioned SRS time domain resource may be entirely composed of the 9th symbol in the first slot to 3 symbols in the 14th symbol, 5 symbols or 6 symbols alone. The method of SRS transmission in this case will be described in detail below in conjunction with FIG. 8.
  • FIG. 8 is a schematic flowchart of an SRS transmission method according to an embodiment of the present application.
  • the method shown in FIG. 8 may include step 210 and step 220, and step 210 and step 220 will be described in detail below.
  • the access network device sends SRS time domain resource indication information to the terminal device, and the terminal device receives the SRS time domain resource indication information.
  • the SRS time domain resource indication information in the above step 210 is used to indicate the location of the SRS time domain resource, and the SRS time domain resource includes at least one of the 9th symbol to the 14th symbol of the first slot. Further, the SRS time-domain resource is composed of 3 symbols or 5 symbols or 6 symbols from the 9th symbol to the 14th symbol in the first slot.
  • the SRS time domain resources may include uplink time domain resources and/or flexible time domain resources.
  • each symbol of the SRS time domain resource may be an uplink symbol or a flexible symbol.
  • the SRS can be transmitted using uplink symbols or flexible symbols.
  • the access network device may configure the terminal device with periodic SRS, aperiodic SRS, or semi-static SRS.
  • the SRS time domain resource indication information may indicate a periodic SRS time domain resource location, an aperiodic SRS time domain resource location or a semi-static SRS time domain resource location.
  • the above SRS time domain resource indication information may be carried by radio resource control RRC signaling, DCI and/or MAC CE.
  • the above-mentioned first time slot may be an uplink time slot or a special time slot.
  • the above-mentioned first time slot contains a total of 14 symbols.
  • All or part of the symbols in the first time slot can be used to transmit SRS.
  • the terminal device sends the SRS to the access network device on the SRS time domain resource, and the access network device receives the SRS sent by the terminal device on the SRS time domain resource.
  • step 210 after the terminal device obtains the SRS time domain resource indication information, it can determine the location of the SRS time domain resource according to the SRS time domain resource indication information. Next, the terminal device can access the SRS time domain resource The network device has sent the SRS.
  • the access network device may perform channel estimation according to the SRS. Therefore, the method shown in FIG. 8 may further include step 230.
  • the access network device performs channel estimation according to the SRS.
  • step 230 the access network device performs channel estimation according to the SRS sent by the terminal device, and then determines the channel state.
  • the access network device can receive the SRS sent by the terminal device on the 3 symbols, 5 symbols or 6 symbols of the last 6 symbols of the first time slot, which can use at most a certain time slot in the traditional solution 4 of the last 6 symbols are used to transmit SRS (this application can allocate up to all the symbols in the last 6 symbols of a certain time slot to transmit SRS, while the traditional solution can only allocate the last 6 of a certain time slot at most 4 symbols), more symbols can be allocated to transmit SRS, so that the access network device can perform more accurate channel estimation according to the received SRS, which can further improve the downlink throughput rate.
  • the symbols in the above SRS time domain resources are continuous.
  • the access network device may receive the SRS sent by the terminal device from the 9th symbol to the 11th symbol in the first slot.
  • the access network device may receive the SRS sent by the terminal device from the 9th symbol to the 13th symbol in the first slot.
  • the access network device may receive the SRS sent by the terminal device from the 9th symbol to the 14th symbol in the first slot.
  • the access network device can receive 3 consecutive symbols, or 5 consecutive symbols, or 6 consecutive symbols from the 9th to 14th symbols in the first time slot. SRS.
  • the symbols in the SRS time domain resource are non-contiguous.
  • the access network device can receive the transmission from the terminal device on the 9th symbol, 11th symbol, and 12th symbol of the first slot SRS.
  • the access network device can receive the transmission from the terminal device on the 9th symbol and the 11th to 14th symbols in the first slot SRS.
  • the access network device can receive the SRS sent by the terminal device on the non-contiguous 3 symbols or the non-contiguous 5 symbols among the 9th to 14th symbols in the first time slot.
  • the SRS can be transmitted using multiple consecutive symbols in the last 6 symbols of a certain time slot, or multiple non-contiguous symbols among the last 6 symbols of a certain time slot can be used to transmit SRS, which is different from the traditional scheme.
  • the traditional SRS in this application is more flexible.
  • the SRS time domain resource indicated by the SRS time domain resource indication information includes at least one of the first symbol to the eighth symbol of the first slot.
  • the SRS time domain resource indicated by the SRS time domain resource indication information is from the 9th symbol of the first slot to 3 symbols or 5 symbols or 6 symbols out of the 14th symbol Symbol composition.
  • SRS and PUSCH both occupy the time domain resources of the carrier during transmission.
  • SRS is allocated more time domain resources
  • PUSCH transmission may be affected.
  • the uplink time slot can transmit both PUSCH and SRS.
  • the symbol in the uplink time slot is used to transmit SRS, in order to ensure that the PUSCH transmission is not affected, the PUSCH transmitted in the current frequency band can be scheduled to other idle In the frequency band.
  • the present application proposes a method of SRS transmission. While using the symbols in the uplink time slot of a certain frequency band to transmit SRS, the PUSCH originally transmitted on the uplink time slot of the frequency band is scheduled outside the frequency band On other idle frequency bands. Therefore, while ensuring that the PUSCH transmission is not affected, more time domain resources are allocated for the SRS, so that the access network device can perform more accurate channel estimation according to the received SRS.
  • FIG. 11 is a schematic diagram of an SRS transmission method according to an embodiment of the present application.
  • the method shown in FIG. 11 includes steps 310 to 330, and these steps are described in detail below.
  • the access network device determines whether the SRS capacity of the first carrier is limited.
  • the access network device may determine whether the SRS capacity of the first carrier is limited according to the number of terminal devices within the coverage of the access network device and the service requirements of the terminal device.
  • the access network device may perform step 320 when the SRS capacity of the first carrier is limited.
  • the second carrier When the second carrier has idle time domain resources, configure the idle time domain resources of the second carrier to the PUSCH.
  • step 320 may be performed, so that more time domain resources can be provided for the SRS on the first carrier.
  • the PUSCH in the above step 320 was originally configured with the time-domain resource of the first carrier.
  • the PUSCH can be configured to be sent on the idle time-domain resource of the second carrier to send. Allocate more time-domain resources for SRS.
  • the access network device sends SRS time domain resource indication information to the terminal device, where the SRS time domain resource indication information is used to instruct the terminal device to send the SRS time domain resource used by the SRS.
  • the SRS time-domain resource in step 330 may meet the above-mentioned definition of the SRS time-domain resource in the methods shown in FIGS. 3 and 8 above.
  • the symbol distribution in the SRS time domain resource indicated by the SRS time domain resource indication information in step 330 may be as shown in FIGS. 5 to 7 and FIGS. 9 and 10.
  • the access network device receives the SRS sent by the terminal device on the SRS time domain resource.
  • the access network device performs channel estimation according to the SRS.
  • 310 is optional, and the access network device may directly perform 320 without determining whether the SRS capacity of the first carrier is limited.
  • the SRS time-domain resources between neighboring cells can be staggered to avoid overlapping of SRS time-domain resources of different cells and reduce Inter-cell interference.
  • the access network device can pass the A carrier (A carrier can be a TDD network).
  • a carrier can be a TDD network.
  • Carrier) and B carrier can be a carrier in FDD network
  • the coverage of the access network device on the A carrier and B carrier is shown in Figure 12, where the uplink coverage area of the B carrier.
  • the uplink coverage area larger than the A carrier (the uplink coverage area of the A carrier is located in the uplink coverage area of the B carrier), in the traditional scheme, generally 2 symbols of the last 6 symbols in a certain time slot are used (up to 4 of the last 6 symbols of a certain time slot) to transmit SRS.
  • some or all symbols in the original uplink time slot U can be allocated to the SRS for transmission of the SRS, that is, the SRS can occupy the uplink time slot (SRS can also occupy all symbols in the uplink time slot U, here only shows the case where the SRS occupies a part of the symbol in the uplink time slot U) for transmission.
  • the PUSCH that originally occupied the uplink time slot in the A carrier can be scheduled to be transmitted on the idle spectrum in the B carrier (the blank part in B is the idle spectrum) for transmission.
  • FIG. 12 takes the NUL carrier and the SUL carrier as examples.
  • the A carrier may be SUL
  • the B carrier may be NUL
  • the A carrier and the B carrier may be two CA carriers, respectively.
  • the A carrier or the B carrier may be the first carrier of the related content in FIG. 11, and the transmission of the SRS on the A carrier (or B carrier) may refer to the related content in FIGS. 1 to 12.
  • the SRS transmission method of the embodiment of the present application is described in detail above with reference to FIGS. 1 to 12, and the access network equipment and terminal equipment of the embodiment of the present application are described below with reference to FIGS. 13 to 16. It should be understood that the following The introduced access network device and terminal device can respectively perform the steps performed by the access network device and terminal device in the SRS transmission method of the embodiment of the present application. The following description will be appropriately omitted when introducing the access network device and terminal device. description.
  • FIG. 13 is a schematic block diagram of an access network device according to an embodiment of the present application.
  • the access network device 1000 shown in FIG. 13 includes a transceiver module 1001 and a processing module 1002.
  • the access network device 1000 can be used to perform the relevant steps in the method shown in FIG. 3 (steps performed by the access network device), It can also be used to perform the relevant steps in the method shown in FIG. 8 (steps performed by the access network device).
  • the specific functions of the transceiver module 1001 and the processing module 1002 are as follows:
  • the transceiver module 1001 is configured to send channel sounding reference signal SRS time domain resource indication information to a terminal device, where the SRS time domain resource indication information indicates SRS time domain resource, and the SRS time domain resource includes the first one of the first time slot At least one of the symbol to the 8th symbol;
  • the processing module 1002 is configured to receive an SRS from the terminal device on the SRS time domain resource.
  • the specific functions of the transceiver module 1001 and the processing module 1002 are as follows:
  • the transceiver module 1001 is configured to send channel sounding reference signal SRS time domain resource indication information to a terminal device, where the SRS time domain resource indication information indicates SRS time domain resource, and the SRS time domain resource is determined by the ninth of the first time slot From the symbol to the 14th symbol, it consists of 3 symbols or 5 symbols or 6 symbols;
  • the processing module 1002 is configured to receive an SRS from the terminal device on the SRS time domain resource.
  • the access network device can receive the SRS sent by the terminal device on the 3 symbols, 5 symbols or 6 symbols of the last 6 symbols of the first time slot, which can use at most a certain time slot in the traditional solution 4 of the last 6 symbols are used to transmit SRS (this application can allocate up to all the symbols in the last 6 symbols of a certain time slot to transmit SRS, while the traditional solution can only allocate the last 6 of a certain time slot at most 4 symbols), more symbols can be allocated to transmit SRS, so that the access network device can perform more accurate channel estimation according to the received SRS, which can further improve the downlink throughput rate.
  • FIG. 14 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • the terminal device 2000 shown in FIG. 14 includes a receiving module 2001 and a sending module 2002.
  • the terminal device 2000 can be used to perform the relevant steps (steps performed by the terminal device) in the method shown in FIG. Relevant steps in the method shown in 8 (steps performed by the terminal device).
  • the specific functions of the receiving module 2001 and the sending module 2002 are as follows:
  • the receiving module 2001 is configured to receive channel sounding reference signal SRS time domain resource indication information from an access network device, where the SRS time domain resource indication information indicates SRS time domain resource, and the SRS time domain resource includes the first slot At least one of 1 symbol to the 8th symbol;
  • the sending module 2002 is configured to send an SRS to the access network device on the SRS time domain resource.
  • the specific functions of the receiving module 2001 and the sending module 2002 are as follows:
  • the receiving module 2001 is configured to receive channel sounding reference signal SRS time domain resource indication information from an access network device, where the SRS time domain resource indication information indicates SRS time domain resource, and the SRS time domain resource is determined by the first slot From 9 symbols to 14 symbols, 3 symbols or 5 symbols or 6 symbols;
  • the sending module 2002 is configured to send an SRS to the access network device on the SRS time domain resource.
  • any part of the symbols in the first 8 symbols of the first time slot and any part of the symbols in the last 6 symbols of the first time slot can be used to transmit SRS, which can only be used in a certain time slot in the traditional scheme.
  • One of the last 6 symbols, 2 symbols, or 4 symbols to transmit SRS can be more flexibly allocated to the symbols used to transmit SRS, and more symbols can be used to transmit SRS, so that The access network device can perform more accurate channel estimation according to the received SRS, which can further improve the downlink throughput rate.
  • 15 is a schematic block diagram of an access network device according to an embodiment of the present application.
  • the access network device 3000 in FIG. 15 includes a memory 3001, a transceiver 3002, and a processor 3003. Among them, the specific functions of the memory 3001, the transceiver 3002 and the processor 3003 are as follows:
  • the memory 3001 is used to store programs
  • the processor 3003 is used to execute the program stored in the memory 3001.
  • the processor 3003 and the transceiver 3002 are used to execute the method shown in FIG. 3 or FIG. 8 by the access network device Related steps.
  • processor 3003 and the transceiver 3002 are used to perform the method shown in FIG. 3, the processor 3003 and the transceiver 3002 are specifically used to:
  • the transceiver 3002 is configured to send channel sounding reference signal SRS time domain resource indication information to a terminal device, where the SRS time domain resource indication information indicates SRS time domain resource, and the SRS time domain resource includes the first one of the first time slot At least one of the symbol to the 8th symbol;
  • the processor 3003 is configured to receive an SRS from the terminal device on the SRS time domain resource.
  • processor 3003 and the transceiver 3002 are used to perform the method shown in FIG. 3, the processor 3003 and the transceiver 3002 are specifically used to:
  • the transceiver 3002 is configured to send channel sounding reference signal SRS time domain resource indication information to a terminal device, where the SRS time domain resource indication information indicates SRS time domain resource, and the SRS time domain resource is determined by the ninth of the first time slot From the symbol to the 14th symbol, it consists of 3 symbols or 5 symbols or 6 symbols;
  • the processor 3003 is configured to receive an SRS from the terminal device on the SRS time domain resource.
  • 16 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • the terminal device 4000 in FIG. 16 includes a memory 4001, a processor 4002, and a transceiver 4003. Among them, the specific functions of the memory 4001, the processor 4002 and the transceiver 4003 are as follows:
  • Memory 4001 used to store programs
  • the processor 4002 is used to execute the program stored in the memory 4001.
  • the transceiver 4003 is used to perform the relevant steps performed by the terminal device in the method shown in FIG. 3 or FIG.
  • the transceiver 4003 When the transceiver 4003 is used to perform the method shown in FIG. 3, the transceiver 4003 is specifically used to: receive channel sounding reference signal SRS time domain resource indication information from an access network device, when the SRS time domain resource indication information indicates SRS Domain resource, the SRS time domain resource includes at least one of the first symbol to the eighth symbol of the first time slot; and the SRS is sent to the access network device on the SRS time domain resource.
  • the transceiver 4003 When the transceiver 4003 is used to perform the method shown in FIG. 8, the transceiver 4003 is specifically used to: receive channel sounding reference signal SRS time domain resource indication information from an access network device, when the SRS time domain resource indication information indicates SRS Domain resource, the SRS time domain resource is composed of 3 symbols or 5 symbols or 6 symbols from the 9th symbol to the 14th symbol of the first slot;
  • the access network device sends SRS.
  • 17 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • the communication device 5000 shown in FIG. 17 may be a chip in the access network device in the embodiment of the present application.
  • the communication unit 5003 may be an input or output interface, a pin, a circuit, or the like.
  • the storage unit may store computer execution instructions of the method on the access network device side, so that the processing unit 5001 executes the method on the access network device side in the foregoing embodiment.
  • the storage unit 5002 may be a register, cache, or RAM.
  • the storage unit 5002 may be integrated with the processing unit 5001; the storage unit 5002 may be a ROM or other type of static storage device that can store static information and instructions.
  • the storage unit 5002 may be The processing unit 5001 is independent.
  • the transceiver may be integrated on the communication device 5000, for example, the communication unit 5003 integrates the transceiver and the network interface.
  • the communication device 5000 shown in FIG. 17 may also be a chip in the terminal device in the embodiment of the present application.
  • the communication unit 5003 may be an input or output interface, a pin, a circuit, or the like.
  • the storage unit may store computer-executed instructions of the method on the access network device side, so that the communication unit 5003 executes the method on the terminal device side in the foregoing embodiment.
  • the storage unit 5002 may be a register, cache, or RAM.
  • the storage unit 5002 may be integrated with the processing unit 5001; the storage unit 5002 may be a ROM or other type of static storage device that can store static information and instructions.
  • the storage unit 5002 may be The processing unit 5001 is independent.
  • the transceiver may be integrated on the communication device 5000, for example, the communication unit 5003 integrates the transceiver and the network interface.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a division of logical functions.
  • there may be other divisions for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • 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, they may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application essentially or part of the contribution to the existing technology or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to enable a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program codes .

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Abstract

本申请提供了SRS传输的方法、接入网设备和终端设备。该方法包括：向终端设备发送信道探测参考信号SRS时域资源指示信息，所述SRS时域资源指示信息指示SRS时域资源，所述SRS时域资源包括第一时隙的第1个符号至第8个符号中的至少一个；在所述SRS时域资源上从所述终端设备接收SRS。本申请能够分配更多的符号来传输SRS，从而能够根据接收到的SRS进行较为准确的信道估计。

Description

SRS传输的方法、接入网设备和终端设备
本申请要求于2018年12月06日提交中国专利局、申请号为201811489279.9、申请名称为“SRS传输的方法、接入网设备和终端设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，并且更具体地，涉及一种SRS传输的方法、接入网设备和终端设备。
背景技术
在接入网设备与终端设备通信的过程中，终端设备可以通过上行物理共享信道(physical uplink shared channel，PUSCH)向接入网设备发送上行数据。另外，为了确定信道状态，终端设备还可以向接入网设备发送信道探测参考信号(sounding reference signal，SRS)，接入网设备在接收到终端设备发送的SRS之后，可以根据接收到的SRS进行信道估计。
随着网络负载的增加，移动用户对网络传输速率要求的提高，为了保障上行PUSCH传输，SRS传输周期可能会变长，影响信道估计。如何保障SRS传输性能是一个需要解决的问题。
发明内容
本申请提供一种SRS传输的方法、接入网设备和终端设备，能够分配更多的符号来传输SRS，从而能够根据SRS进行较为准确的信道估计。
第一方面，提供了一种SRS传输的方法，该方法包括：向终端设备发送信道探测参考信号SRS时域资源指示信息，所述SRS时域资源指示信息指示SRS时域资源，所述SRS时域资源包括第一时隙的第1个符号至第8个符号中的至少一个；在所述SRS时域资源上从所述终端设备接收SRS。
可选地，上述第一时隙为上行时隙或者特殊时隙。
其中，上行时隙可以是全部由上行符号组成的时隙，特殊时隙可以是由上行符号和下行符号组成的时隙。
上述方法可以由接入网设备或者接入网设备中的芯片执行。
当上述方法由接入网设备执行时，上述终端设备可以是位于接入网设备的网络覆盖范围内的设备。
本申请中，可以采用第一时隙中的1个符号至第8个符号中的至少一个符号来传输SRS，与传统方案中最多能够采用某一时隙的最后6个符号中的4个符号来传输SRS的方式相比，可以分配更多的符号来传输SRS，从而使得接入网设备能够根据接收到的SRS 进行较为准确的信道估计，可以进一步提升下行吞吐率。
上述第一时隙的符号数可以是14个，该第一时隙中的部分符号或者全部符号可以用于传输SRS。
当第一时隙中的全部符号都用于传输SRS时，能够有更多的时域资源用于传输SRS，可以提升SRS的容量，从而提高根据SRS进行信道估计时的准确性。
结合第一方面，在第一方面的某些实现方式中，所述SRS时域资源还包括所述第一时隙的第9个符号至第14个符号中的M个符号，M为正整数。
本申请能够采用第一时隙的最后6个符号中的任意个数的符号来传输SRS，与传统方案中仅能够采用某一时隙中的最后6个符号中的固定个数的符号(常采用6个符号中1个符号，2个符号或者4个符号)来传输SRS的方式相比，能够更灵活分配用于传输SRS的符号。
结合第一方面，在第一方面的某些实现方式中，M＝3，或者M＝5，或者M＝6。
本申请中，可以采用第一时隙的前8个符号中的任意一部分符号和第一时隙的后6个符号中的任意一部分符号来传输SRS，与传统方案中仅能够采用某一时隙中的最后6个符号中固定个数的符号(例如，3个符号，5个符号或者6个符号)来传输SRS的方式相比，能够更加灵活地分配用于传输SRS的符号，并且能够更多的符号来传输SRS，从而使得接入网设备能够根据接收到的SRS进行较为准确的信道估计，可以进一步提升下行吞吐率。
结合第一方面，在第一方面的某些实现方式中，所述SRS时域资源中的符号是连续的。
结合第一方面，在第一方面的某些实现方式中，所述SRS时域资源中的符号是非连续的。
本申请中，既可以采用连续的符号来传输SRS，也可以采用非连续的符号来传输SRS，与传统方案中仅能够采用连续的符号来传输SRS的方式相比，本申请传统SRS的方式更加灵活。
第二方面，提供了一种SRS传输的方法，该方法包括：向终端设备发送信道探测参考信号SRS时域资源指示信息，所述SRS时域资源指示信息指示SRS时域资源，所述SRS时域资源由第一时隙的第9个符号至第14个符号中的3个符号或者5个符号或者6个符号组成；在所述SRS时域资源上从所述终端设备接收SRS。
上述方法可以由接入网设备或者接入网设备中的芯片来执行。
可选地，上述第一时隙为上行时隙或者特殊时隙。
本申请中，接入网设备可以在第一时隙的最后6个符号中的3个符号，5个符号或者6个符号上接收终端设备发送的SRS，与传统方案中最多能够采用某一时隙的最后6个符号中的4个符号来传输SRS的方式相比(本申请最多可以分配某一时隙最后6个符号中的全部符号来传输SRS，而传统方案最多只能分配某一时隙最后6个符号中的4个符号)，可以分配更多的符号来传输SRS，从而使得接入网设备能够根据接收到的SRS进行较为准确的信道估计，可以进一步提升下行吞吐率。
结合第二方面，在第二方面的某些实现方式中，所述SRS时域资源中的符号是连续的。
结合第二方面，在第二方面的某些实现方式中，当所述SRS时域资源由第一时隙的第9个符号至第14个符号中的3个符号或者5个符号组成时，所述SRS时域资源中的符号是非连续的。
本申请中，既可以采用某一时隙最后6个符号中连续的多个符号来传输SRS，也可以采用某一时隙最后6个符号中非连续的多个符号来传输SRS，与传统方案中仅能够采用连续的符号来传输SRS的方式相比，本申请传统SRS的方式更加灵活。
第三方面，提供了一种SRS传输的方法，该方法包括：从接入网设备接收信道探测参考信号SRS时域资源指示信息，所述SRS时域资源指示信息指示SRS时域资源，所述SRS时域资源包括第一时隙的第1个符号至第8个符号中的至少一个；在所述SRS时域资源上向所述接入网设备发送SRS。
上述方法可以由终端设备或者终端设备中的芯片来执行。
当上述方法由终端设备执行时，该终端设备可以是处于接入网设备的网络覆盖范围内的设备。
本申请中，由于第一时隙中的1个符号至第8个符号中的至少部分符号也可以用于传输SRS，与传统方案中最多能够采用某一时隙的最后6个符号中的4个符号来传输SRS的方式相比，可以分配更多的符号来传输SRS，从而使得接入网设备能够根据接收到的SRS进行较为准确的信道估计，可以进一步提升下行吞吐率。
结合第三方面，在第三方面的某些实现方式中，所述SRS时域资源还包括所述第一时隙的第9个符号至第14个符号中的M个符号，M为正整数。
当上述第一时隙中的全部符号都于传输SRS时，能够分配更多的时域资源用于传输SRS，能够提升SRS的容量，可以进一步的提高根据SRS进行信道估计时的准确性。
结合第三方面，在第三方面的某些实现方式中，所述M＝3，或者M＝5，或者M＝6。
本申请中，可以采用第一时隙的前8个符号中的任意一部分符号和第一时隙的后6个符号中的任意一部分符号来传输SRS，与传统方案中仅能够采用某一时隙中的最后6个符号中的1个符号，2个符号或者4个符号来传输SRS的方式相比，能够更加灵活地分配用于传输SRS的符号，并且能够更多的符号来传输SRS，从而使得接入网设备能够根据接收到的SRS进行较为准确的信道估计，可以进一步提升下行吞吐率。
结合第三方面，在第三方面的某些实现方式中，所述SRS时域资源中的符号是连续的。
结合第三方面，在第三方面的某些实现方式中，所述SRS时域资源中的符号是非连续的。
本申请中，既可以采用连续的符号来传输SRS，也可以采用非连续的符号来传输SRS，与传统方案中仅能够采用连续的符号来传输SRS的方式相比，本申请传统SRS的方式更加灵活。
第四方面，提供了一种SRS传输的方法，该方法包括：从接入网设备接收信道探测参考信号SRS时域资源指示信息，所述SRS时域资源指示信息指示SRS时域资源，所述SRS时域资源由第一时隙的第9个符号至第14个符号中的3个符号或者5个符号或者6个符号组成；在所述SRS时域资源上向所述接入网设备发送SRS。
上述方法可以由终端设备或者终端设备中的芯片来执行。
当上述方法由终端设备执行时，该终端设备可以是处于接入网设备的网络覆盖范围内的设备。
本申请中，可以采用第一时隙的前8个符号中的任意一部分符号和第一时隙的后6个符号中的任意一部分符号来传输SRS，与传统方案中仅能够采用某一时隙中的最后6个符号中的1个符号，2个符号或者4个符号来传输SRS的方式相比，能够更加灵活地分配用于传输SRS的符号，并且能够更多的符号来传输SRS，从而使得接入网设备能够根据接收到的SRS进行较为准确的信道估计，可以进一步提升下行吞吐率。
结合第四方面，在第四方面的某些实现方式中，所述SRS时域资源中的符号是连续的。
结合第四方面，在第四方面的某些实现方式中，当所述SRS时域资源由第一时隙的第9个符号至第14个符号中的3个符号或者5个符号组成时，所述SRS时域资源中的符号是非连续的。
本申请中，既可以采用某一时隙最后6个符号中连续的多个符号来传输SRS，也可以采用某一时隙最后6个符号中非连续的多个符号来传输SRS，与传统方案中仅能够采用连续的符号来传输SRS的方式相比，本申请传统SRS的方式更加灵活。
第五方面，提供了一种接入网设备，该接入网设备包括用于执行上述第一方面或者第二方面中的各种实现方式中的单元或者模块。
第六方面，提供了一种终端设备，该接入网设备包括用于执行上述第三方面或者第四方面中的各种实现方式中的单元或者模块。
第七方面，提供了一种接入网设备，包括：存储器和处理器，所述处理器调用存储在所述存储器中的程序代码以执行第一方面的任意一种方法的部分或全部步骤。
可选地，上述存储器为非易失性存储器。
可选地，上述存储器与处理器互相耦合在一起。
第八方面，提供了一种终端设备，包括：存储器和处理器，所述处理器调用存储在所述存储器中的程序代码以执行第一方面的任意一种方法的部分或全部步骤。
可选地，上述存储器为非易失性存储器。
可选地，上述存储器与处理器互相耦合在一起。
第九方面，提供了一种通信装置，所述通信装置包括处理器，所述处理器和存储器耦合，所述存储器用于存储计算机程序或指令，所述处理器用于执行存储器中的该计算机程序或指令，使得所述通信装置执行上述第一方面，第二方面，第三方面以及第四方面中任意一个方面中的各种实现方式中的方法。
第十方面，本申请实施例提供了一种通信装置，该通信装置可以是接入网设备中的芯片，该通信装置包括处理器，所述处理器与存储器耦合，该存储器用于存储计算机程序或指令，该处理器用于执行该存储器中的计算机程序或指令，使得该通信装置执行第一方面或者第二方面中的任意一种实现方式中的方法，可选的，该通信装置还包括该存储器。
第十一方面，本申请实施例提供了一种通信装置，该通信装置可以是终端设备中的芯片，该通信装置包括处理器，所述处理器与存储器耦合，该存储器用于存储计算机程序或指令，该处理器用于执行该存储器中的计算机程序或指令，使得该通信装置执行第三方面或者第四方面中的任意一种实现方式中的方法，可选的，该通信装置还包括该存储器。
第十二方面，提供了一种计算机可读存储介质，所述计算机可读存储介质存储了程序代码，其中，所述程序代码包括用于执行第一方面或者第二方面中的任意一种方法的部分或全部步骤的指令。
第十三方面，本申请实施例提供一种计算机程序产品，当所述计算机程序产品在计算机上运行时，使得所述计算机执行第一方面或者第二方面中的任意一种方法的部分或全部步骤。
附图说明
图1是本申请实施例的一种可能的应用的场景的示意图；
图2是本申请实施例的一种可能的应用的场景的示意图；
图3是本申请实施例的SRS传输的方法的示意性流程图；
图4是上行时隙，下行时隙和特殊时隙的示意图；
图5是N个符号的分布示意图；
图6是N个符号的分布示意图；
图7是N个符号的分布示意图；
图8是本申请实施例的SRS传输的方法的示意性流程图；
图9是N个符号的分布示意图；
图10是N个符号的分布示意图；
图11是本申请实施例的SRS传输的方法的示意性流程图；
图12是本申请实施例的SRS传输的方法的示意图；
图13是本申请实施例的接入网设备的示意性框图；
图14是本申请实施例的终端设备的示意性框图；
图15是本申请实施例的接入网设备的示意性框图；
图16是本申请实施例的终端设备的示意性框图；
图17是本申请实施例的通信设备的示意性框图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
图1是本申请实施例的一种可能的应用场景的示意图。图1所示的通信系统包括接入网设备、终端设备A和终端设备B。其中，终端设备A和终端设备B均在接入网设备的网络覆盖范围内，终端设备A可以与接入网设备通信，终端设备A可以与接入网设备通信，为了对信道状态进行估计，终端设备A和终端设备B可以向接入网设备发送SRS，在接收到SRS之后，接入网设备就可以根据SRS进行信道估计。
应理解，图1中仅示出了包含两个终端设备和一个网络设备的通信系统，事实上，本申请实施例还可以应用于任意数量的终端设备和接入网设备组成的通信系统中。
本申请实施例可以应用到无线多频多制式系统中。
具体地，本申请实施例可以应用到的系统包括但不限于到时分双工(time division duplexing，TDD)系统、频分双工(frequency division duplex，FDD)系统，长期演进(long term evolution，LTE)系统、新无线(new radio，NR)系统中。
另外，本申请还可以应用到多种组网场景中，例如，本申请实施例可以应用到的组网场景包括但不限于上下行解耦、载波聚合(carrier aggregation，CA)和双连接(dual connectivity，DC)组网场景。
本申请实施例还可以应用到多种收发形态中，例如，本申请实施例可以应用得到的收发形态包括但不限于2天线发送/2天线接收(2T2R)、2天线发送/4天线接收(2T4R)、4天线发送/4天线接收(4T4R)、8天线发送/8天线接收(8T8R)和大规模多输入多输出(massive multiple-input multiple-output，MIMO)。
本申请实施例还可以具体应用某些频段的通信系统中，例如，如图2所示，本申请实施例可以应用到3.5GHz(吉赫)或者4.9GHz的NR系统中，也可以应用到0.9GHz、1.8GHz和2.1GHz频段的LTE或者NR通信系统中。
本申请实施例中的终端设备可以指用户设备、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、终端、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，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，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等，本申请实施例对此并不限定。
本申请实施例中的接入网设备可以是用于与终端设备通信的设备，该接入网设备可以是还可以是LTE系统中的演进型基站(evolved NodeB，eNB或eNodeB)，还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器，或者该接入网设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的接入网设备或者未来演进的PLMN网络中的接入网设备等，本申请实施例并不限定。
在本申请实施例中，终端设备或接入网设备包括硬件层、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(memory management unit，MMU)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，本申请实施例并未对本申请实施例提供的方法的执行主体的具体结构特别限定，只要能够通过运行记录有本申请实施例的提供的方法的代码的程序，以根据本申请实施例提供的方法进行通信即可，例如，本申请实施例提供的方法的执行主体可以是终端设备或接入网设备，或者，是终端设备或接入网设备中能够调用程序并执行程序的功能模块。
由于PSUCH和SRS的传输都要占用时域资源，为了保证PSUCH的传输，相关方案中为SRS分配的时域资源非常有限，例如，可以采用某一时隙最后6个符号中的1个符号或者连续的2个符号或者连续的4个符号来传输SRS。
随着网络负载的增加以及网络传输速率的提升的需求，为了保障信道估计结果，终端设备需要向接入网设备传输更多的SRS。因此，为了保证SRS的传输，除了可以采用现有方案为SRS分配资源之外，还可以为SRS分配某一时隙的第1个符号至第8个符号中 的至少一部分符号来传输SRS，可以分配更多的符号来传输SRS，从而使得接入网设备能够根据接收到的SRS进行较为准确的信道估计，可以进一步提升下行吞吐率。
下面结合图3对本申请实施例的SRS传输的方法进行详细的介绍。图3中的终端设备可以是图1所示通信系统中的终端设备A或者终端设备B。
图3是本申请实施例的SRS传输的方法的示意性流程图。图3所示的方法可以包括步骤110和步骤120，下面对步骤110和步骤120进行详细的描述。
110、接入网设备向终端设备发送SRS时域资源指示信息，终端设备接收该SRS时域资源指示信息。
上述步骤110中的SRS时域资源指示信息用于指示SRS时域资源位置，该SRS时域资源包括第一时隙的第1个符号至第8个符号中的至少一个符号。
上述第一时隙既可以是上行时隙也可以是特殊时隙。其中，上行时隙可以是全部由上行符号组成的时隙，特殊时隙可以包括灵活符号，可选的，特殊时隙还可以包括上行符号和/或下行符号。
例如，第一时隙可以是图4中的上行时隙U，也可以是图4中的特殊时隙S。
可选地，上述第一时隙可以包含14个符号。
可选的，上述第一时隙中的全部符号或者部分符号均可以用来传输SRS。
可选的，SRS时域资源可以包括上行时域资源和/或灵活时域资源。可选的，SRS时域资源的每个符号可以是上行符号或者灵活符号。也就是说，可以利用上行符号或者灵活符号传输SRS，第一时隙的第1个符号至第8个符号中的至少一个符号中的每个符号可以是上行符号或者灵活符号。
可选的，接入网设备可以为终端设备配置周期性SRS，非周期SRS，其中，SRS时域资源指示信息可以指示周期性SRS时域资源位置，非周期SRS时域资源位置或者半静态SRS时域资源位置。
可选的，接入网设备可以为终端设备配置动态SRS或者半静态SRS。
可选的，SRS时域资源指示信息可以通过无线资源控制(radio resource control，RRC)信令，下行控制信息(downlink control information，DCI)，和/或媒体访问控制地址控制单元(media access control address control element，MAC CE)携带。
120、终端设备在SRS时域资源上向接入网设备发送SRS，接入网设备在SRS时域资源上接收终端设备发送的SRS。
在步骤110之后，当终端设备获取到了SRS时域资源指示信息之后，可以根据SRS时域资源指示信息确定SRS时域资源的位置，接下来，终端设备可以在SRS时域资源上向接入网设备发送SRS。
当接入网设备接收到终端设备发送的SRS之后可以根据SRS进行信道估计，因此，图3所示的方法还可以包括步骤130。
130、接入网设备根据SRS进行信道估计。
在步骤130中，接入网设备根据终端设备发送的SRS进行信道估计，进而确定信道状态。
本申请中，可以采用第一时隙中的1个符号至第8个符号中的至少一个部分符号来传输SRS，与相关方案中最多能够采用某一时隙的最后6个符号中的4个符号来传输SRS 的方式相比，可以分配更多的符号来传输SRS，从而使得接入网设备能够根据接收到的SRS进行较为准确的信道估计，可以进一步提升下行吞吐率。
进一步的，当第一时隙中的第1个符号至第8个符号中的全部符号都用于传输SRS时，能够有更多的时域资源用于传输SRS，可以进一步提升SRS的容量，从而进一步提高根据SRS进行信道估计时的准确性。
可选地，作为一个实施方式，上述SRS时域资源还包括第一时隙的第9个符号至第14个符号中的M个符号，M为正整数。
可选的，第一时隙的第9个符号至第14个符号中的M个符号中的每个符号可以是上行符号或者灵活符号。
其中，上述M的取值可以是1-6中的任意一个数值。
可选地，作为一个实施例，上述M＝3，或者M＝5，或者M＝6。
本申请中，可以采用第一时隙的前8个符号中的任意一部分符号和第一时隙的后6个符号中的任意一部分符号来传输SRS，与相关方案中仅能够采用某一时隙中的最后6个符号中固定个数的符号(例如，1个符号，2个符号或者4个符号)来传输SRS的方式相比，能够更加灵活地分配用于传输SRS的符号，并且能够更多的符号来传输SRS，从而使得接入网设备能够根据接收到的SRS进行较为准确的信道估计，可以进一步提升下行吞吐率。
可选地，上述SRS时域资源中的符号是连续的。
上述SRS时域资源中的符号连续可以是指SRS时域资源中的符号的排列位置的索引依次相差1。
例如，当SRS时域资源由第一时隙中的第2个符号、第3个符号以及第4个符号组成时，SRS时域资源中的符号是连续的。
可选地，上述SRS时域资源中的符号是非连续的。
上述SRS时域资源中的符号是不连续的具体可以是指SRS时域资源中的符号的排列位置的索引不是依次差1。
例如，当上述SRS时域资源中的由第一时隙中的第2个符号、第3个符号、第4个符号以及第10个符号组成时，SRS时域资源中的符号是非连续的(第2个符号至第4个符号的排列位置的索引依次差1，但是，第4个符号与第10个符号的排列位置的索引大于1，因此，SRS时域资源中的符号是非连续的)。
再如，当上述SRS时域资源中的由第一时隙中的第1个符号、第3个符号和第5个符号组成时，SRS时域资源中的符号是非连续的(第1个符号、第3个符号以及第5个符号排列位置的索引依次差2，因此，SRS时域资源中的符号是非连续的)。
本申请中，既可以采用连续的符号来传输SRS，也可以采用非连续的符号来传输SRS，与传统方案中仅能够依靠连续的符号来传输SRS的方式相比，本申请传统SRS的方式更加灵活。
应理解，在本申请中，上述SRS时域资源也可以由第一时隙中的任意一部分符号或者第一时隙的全部符号组成。
下面结合附图以具体的实例对SRS时域资源中的符号在第一时隙中的具体分布情况进行详细的描述，应理解，下文中的图5至图7中所示的情况只是SRS时域资源中的符 号在第一时隙分布的部分情况，SRS时域资源中的符号在第一时隙中的分布情况并不限于图5至图7中所示的情况。
第一种情况：SRS时域资源由第一时隙中的第1个至第8个符号中的N个符号组成。
例如，如图5所示，当N＝3时，SRS时域资源可以由第一时隙中的第2个符号，第3个符号以及第4个符号组成，在这种情况下，SRS时域资源中的符号是连续的。
例如，如图5所示，当N＝4时，SRS时域资源可以由第一时隙中的第2个符号，第3个符号、第4个符号以及第8个符号组成，在这种情况下，该N个符号是非连续的。
由图5可知，上述N个符号既可以是连续的，在这种情况下，SRS时域资源中的符号是非连续的。
第二种情况：SRS时域资源由第一时隙中的第1个至第8个符号中的N个符号和第一时隙中的第9个至第14个符号中的M个符号组成。
例如，如图6所示，当N+M＝4时，SRS时域资源可以由第一时隙中的第7个符号，第8个符号、第9个符号以及第10个符号组成，在这种情况下，SRS时域资源中的符号是连续的。
例如，如图6所示，当N+M＝7时，SRS时域资源可以由第一时隙中的第2个符号、第3个符号、第4个符号以及7个符号，第8个符号、第9个符号和第10个符号组成，在这种情况下，SRS时域资源中的符号是非连续的。
进一步的，在第二种情况下，M可以为3，5和6。
例如，如图7所示，当N＝3，M＝3时，SRS时域资源可以由第一时隙中的第2个符号至第4个符号以及第一时隙中的第9个符号至第11个符号组成，此时，SRS时域资源中的符号是非连续的。
例如，如图7所示，当N＝3，M＝5时，SRS时域资源可以由第一时隙中的第2个符号至第4个符号以及第一时隙中的第9个符号至第11个符号以及第13个符号和第14符号组成，此时，SRS时域资源中的符号是非连续的。
例如，如图7所示，当N＝3，M＝6时，SRS时域资源可以由第一时隙中的第2个符号至第4个符号以及第一时隙中的第9个符号至第14符号组成，此时，SRS时域资源中的符号是非连续的。
应理解，SRS时域资源除了可以包含第一时隙中的第1个符号至第8个符号中的至少符号之外，上述SRS时域资源还可以完全由第一时隙中的第9个符号至第14个符号组成。进一步的，上述SRS时域资源可以完全由第一时隙中的第9个符号至第14个符号中3个符号，5个符号或者6个符号单独组成。下面结合图8对这种情况下SRS传输的方法进行详细的介绍。
图8是本申请实施例的SRS传输的方法的示意性流程图。图8所示的方法可以包括步骤210和步骤220，下面对步骤210和步骤220进行详细的描述。
210、接入网设备向终端设备发送SRS时域资源指示信息，终端设备接收该SRS时域资源指示信息。
上述步骤210中的SRS时域资源指示信息用于指示SRS时域资源位置，该SRS时域资源包括第一时隙的第9个符号至第14个符号中的至少一个。进一步的，该SRS时域资源由第一时隙的第9个符号至第14个符号中的3个符号或者5个符号或者6个符号组成。
可选的，SRS时域资源可以包括上行时域资源和/或灵活时域资源。可选的，SRS时域资源的每个符号可以是上行符号或者灵活符号。也就是说，可以利用上行符号或者灵活符号传输SRS。
可选的，接入网设备可以为终端设备配置周期性SRS，非周期SRS，或者半静态SRS。SRS时域资源指示信息可以指示周期性SRS时域资源位置，非周期SRS时域资源位置或者半静态SRS时域资源位置。
可选的，上述SRS时域资源指示信息可以通过无线资源控制RRC信令，DCI和/或MAC CE携带。
上述第一时隙可以是上行时隙，也可以是特殊时隙。
可选地，上述第一时隙共包含14个符号。
上述第一时隙中的全部符号或者部分符号均可以用来传输SRS。
当第一时隙中的全部符号都用于传输SRS时，能够有更多的时域资源用于传输SRS，可以提升SRS的容量，从而提高根据SRS进行信道估计时的准确性。
220、终端设备在SRS时域资源上向接入网设备发送SRS，接入网设备在SRS时域资源上接收终端设备发送的SRS。
在步骤210之后，当终端设备获取到了SRS时域资源指示信息之后，可以根据SRS时域资源指示信息确定SRS时域资源的位置，接下来，终端设备就可以在SRS时域资源上向接入网设备发送SRS了。
当接入网设备接收到终端设备发送的SRS之后可以根据SRS进行信道估计，因此，图8所示的方法还可以包括步骤230。
230、接入网设备根据SRS进行信道估计。
在步骤230中，接入网设备根据终端设备发送的SRS进行信道估计，进而确定信道状态。
本申请中，接入网设备可以在第一时隙的最后6个符号中的3个符号，5个符号或者6个符号上接收终端设备发送的SRS，与传统方案中最多能够采用某一时隙的最后6个符号中的4个符号来传输SRS的方式相比(本申请最多可以分配某一时隙最后6个符号中的全部符号来传输SRS，而传统方案最多只能分配某一时隙最后6个符号中的4个符号)，可以分配更多的符号来传输SRS，从而使得接入网设备能够根据接收到的SRS进行较为准确的信道估计，可以进一步提升下行吞吐率。
可选地，上述SRS时域资源中的符号是连续的。
例如，如图9所示，当SRS时域资源由3个符号组成时，接入网设备可以在第一时隙的第9个符号至第11个符号接收终端设备发送的SRS。
例如，如图9所示，当SRS时域资源由5个符号组成时，接入网设备可以在第一时隙的第9个符号至第13个符号接收终端设备发送的SRS。
例如，如图9所示，当SRS时域资源由6个符号组成时，接入网设备可以在第一时隙的第9个符号至第14个符号接收终端设备发送的SRS。
由图9可知，接入网设备可以在第一时隙中的第9个至第14个符号中的连续的3个符号或者连续的5个符号或者连续的6个符号上接收终端设备发送的SRS。
可选地，当上述SRS时域资源由第一时隙的第9个符号至第14个符号中的3个符号 或者5个符号组成时，SRS时域资源中的符号是非连续的。
例如，如图10所示，当SRS时域资源由3个符号组成时，接入网设备可以在第一时隙的第9个符号、第11个符号和第12个符号上接收终端设备发送的SRS。
例如，如图10所示，当SRS时域资源由5个符号组成时，接入网设备可以在第一时隙的第9个符号以及第11个符号至第14个符号上接收终端设备发送的SRS。
由图10可知，接入网设备可以在第一时隙中的第9个至第14个符号中的非连续的3个符号或者非连续的5个符号上接收终端设备发送的SRS。
本申请中，既可以采用某一时隙最后6个符号中连续的多个符号来传输SRS，也可以采用某一时隙最后6个符号中非连续的多个符号来传输SRS，与传统方案中仅能够采用连续的符号来传输SRS的方式相比，本申请传统SRS的方式更加灵活。
应理解，在本申请图8所示的方法中，SRS时域资源指示信息指示的SRS时域资源包括第一时隙的第1个符号至第8个符号中的至少一个。在本申请图8所示的方法中，SRS时域资源指示信息指示的SRS时域资源由第一时隙的第9个符号至第14个符号中的3个符号或者5个符号或者6个符号组成。
另外，在同一载波中，SRS和PUSCH在传输是都会占用该载波的时域资源，当为SRS分配更多的时域资源时，可能会影响PUSCH的传输。在TDD系统中，上行时隙既可以传输PUSCH也可以传输SRS，当采用上行时隙中的符号传输SRS时，为了保证PUSCH的传输不受影响，可以将当前频段中传输的PUSCH调度到其他空闲的频段中传输。
为此，本申请提出了一种SRS传输的方法，在利用某一频段的上行时隙中的符号传输SRS的同时，将原本在该频段的上行时隙上传输的PUSCH调度到该频段之外的其他空闲频段上传输。从而在保证PUSCH传输不受影响的同时，为SRS分配更多的时域资源，使得接入网设备能够根据接收到的SRS进行较为准确的信道估计。
图11是本申请实施例的SRS传输的方法的示意图。图11所示的方法包括步骤310至步骤330，下面对这些步骤进行详细的介绍。
310、接入网设备判断第一载波的SRS容量是否受限。
在步骤310中，接入网设备可以根据接入网设备覆盖范围内的终端设备的数量和终端设备的业务需求来确定第一载波的SRS容量是否受限。
接入网设备可以在第一载波的SRS容量受限时，执行步骤320。
320、当第二载波存在空闲时域资源时，将第二载波的空闲时域资源配置给PUSCH。
应理解，在步骤310中确定出第一载波的SRS容量受限时可以执行步骤320，从而能够在第一载波上为SRS提供更多的时域资源。
可选的，上述步骤320中的PUSCH原先配置的是第一载波的时域资源，当第一载波的SRS容量受限时，通过将PUSCH配置到第二载波的空闲时域资源上发送，能够为SRS分配更多的时域资源。
330、接入网设备向终端设备发送SRS时域资源指示信息，该SRS时域资源指示信息用于指示终端设备发送SRS使用的SRS时域资源。
应理解，步骤330中的SRS时域资源可以满足上文中图3和图8所示的方法中对SRS时域资源的限定。具体地，步骤330中的SRS时域资源指示信息指示的SRS时域资源中的符号分布可以如图5至图7以及图9和图10所示。
340、接入网设备在SRS时域资源上接收终端设备发送的SRS。
350、接入网设备根据SRS进行信道估计。
其中，310是可选的，接入网设备可以不判断第一载波的SRS容量是否受限，直接执行320。
在图11所示的方法中，通过将第二载波上的空闲时域资源配置给PUSCH，使得第一载波上能有更多的时域资源用来传输SRS，从而使得接入网设备能够根据接收到的SRS进行较为准确的信道估计，可以进一步提升下行吞吐率。
另外，当相邻小区之间的干扰比较严重时，通过为SRS分配更多的时域资源，使得邻近小区之间的SRS时域资源可以错开，避免不同小区的SRS时域资源发生重叠，减少小区之间的干扰。
下面结合图12对本申请实施例的SRS传输的方法进行详细的介绍。
如图12，以A载波为正常上行(normal uplink，NUL)载波，B载波为增补上行(supplement uplink，SUL)载波为例，接入网设备可以通过A载波(A载波可以是TDD网络中的载波)和B载波(B载波可以是FDD网络中的载波)与终端设备进行通信，接入网设备在A载波和B载波的覆盖范围如图12中所示，其中，B载波的上行覆盖区域大于A载波的上行覆盖区域(A载波的上行覆盖区域位于B载波的上行覆盖区域内)，在传统方案中，一般会采用某一时隙中的最后6个符号中的2个符号(最多能够采用某一时隙的最后6个符号中的4个符号)来传输SRS。
如图12下侧所示，为了给SRS分配更多的符号，可以将原来上行时隙U中的部分符号或者全部符号分配给SRS，用于传输SRS，也就是说，SRS可以占用上行时隙中的部分符号(SRS也可以占用上行时隙U中的全部符号，这里仅仅示出了SRS占用上行时隙U的部分符号的情况)来传输。而原来占用A载波中的上行时隙的PUSCH可以调度到B载波中的空闲频谱(B中空白部分为空闲频谱)上来传输。
图12以NUL载波和SUL载波为例，本领域技术人员可以理解，A载波可以是SUL，B载波可以是NUL，或者，A载波和B载波可以分别是两个CA载波。
本领域技术人员可以理解，A载波或者B载波可以是图11中的相关内容的第一载波，在A载波(或者B载波)上传输SRS可以参考图1至图12中的相关内容。
上文中结合图1至图12对本申请实施例的SRS传输的方法进行了详细的介绍，下面结合图13至图16对本申请实施例的接入网设备和终端设备进行介绍，应理解，下文中介绍的接入网设备和终端设备分别能够执行本申请实施例的SRS传输的方法中由接入网设备和终端设备执行的各个步骤，下文在介绍接入网设备和终端设备时适当省略重复的描述。
图13是本申请实施例的接入网设备的示意性框图。
图13所示的接入网设备1000包括收发模块1001和处理模块1002，接入网设备1000既可以用于执行图3所示的方法中的相关步骤(由接入网设备执行的步骤)，也可以用于执行图8所示的方法中的相关步骤(由接入网设备执行的步骤)。
当接入网设备1000用于执行图3所示的方法中的相关步骤时，收发模块1001和处理模块1002的具体作用如下：
收发模块1001，用于向终端设备发送信道探测参考信号SRS时域资源指示信息，所 述SRS时域资源指示信息指示SRS时域资源，所述SRS时域资源包括第一时隙的第1个符号至第8个符号中的至少一个；
处理模块1002，用于在所述SRS时域资源上从所述终端设备接收SRS。
本申请中，由于第一时隙中的1个符号至第8个符号中的至少部分符号也可以用于传输SRS，与传统方案中最多能够采用某一时隙的最后6个符号中的4个符号来传输SRS的方式相比，可以分配更多的符号来传输SRS，从而使得接入网设备能够根据接收到的SRS进行较为准确的信道估计，可以进一步提升下行吞吐率。
当接入网设备1000用于执行图8所示的方法中的相关步骤时，收发模块1001和处理模块1002的具体作用如下：
收发模块1001，用于向终端设备发送信道探测参考信号SRS时域资源指示信息，所述SRS时域资源指示信息指示SRS时域资源，所述SRS时域资源由第一时隙的第9个符号至第14个符号中的3个符号或者5个符号或者6个符号组成；
处理模块1002，用于在所述SRS时域资源上从所述终端设备接收SRS。
本申请中，接入网设备可以在第一时隙的最后6个符号中的3个符号，5个符号或者6个符号上接收终端设备发送的SRS，与传统方案中最多能够采用某一时隙的最后6个符号中的4个符号来传输SRS的方式相比(本申请最多可以分配某一时隙最后6个符号中的全部符号来传输SRS，而传统方案最多只能分配某一时隙最后6个符号中的4个符号)，可以分配更多的符号来传输SRS，从而使得接入网设备能够根据接收到的SRS进行较为准确的信道估计，可以进一步提升下行吞吐率。
图14是本申请实施例的终端设备的示意性框图。
图14所示的终端设备2000包括接收模块2001和发送模块2002，终端设备2000既可以用于执行图3所示的方法中的相关步骤(由终端设备执行的步骤)，也可以用于执行图8所示的方法中的相关步骤(由终端设备执行的步骤)。
当终端设备2000用于执行图3所示的方法中的相关步骤时，接收模块2001和发送模块2002的具体作用如下：
接收模块2001，用于从接入网设备接收信道探测参考信号SRS时域资源指示信息，所述SRS时域资源指示信息指示SRS时域资源，所述SRS时域资源包括第一时隙的第1个符号至第8个符号中的至少一个；
发送模块2002，用于在所述SRS时域资源上向所述接入网设备发送SRS。
本申请中，由于第一时隙中的1个符号至第8个符号中的至少部分符号也可以用于传输SRS，与传统方案中最多能够采用某一时隙的最后6个符号中的4个符号来传输SRS的方式相比，可以分配更多的符号来传输SRS，从而使得接入网设备能够根据接收到的SRS进行较为准确的信道估计，可以进一步提升下行吞吐率。
当终端设备2000用于执行图8所示的方法中的相关步骤时，接收模块2001和发送模块2002的具体作用如下：
接收模块2001，用于从接入网设备接收信道探测参考信号SRS时域资源指示信息，所述SRS时域资源指示信息指示SRS时域资源，所述SRS时域资源由第一时隙的第9个符号至第14个符号中的3个符号或者5个符号或者6个符号组成；
发送模块2002，用于在所述SRS时域资源上向所述接入网设备发送SRS。
本申请中，可以采用第一时隙的前8个符号中的任意一部分符号和第一时隙的后6个符号中的任意一部分符号来传输SRS，与传统方案中仅能够采用某一时隙中的最后6个符号中的1个符号，2个符号或者4个符号来传输SRS的方式相比，能够更加灵活地分配用于传输SRS的符号，并且能够更多的符号来传输SRS，从而使得接入网设备能够根据接收到的SRS进行较为准确的信道估计，可以进一步提升下行吞吐率。
图15是本申请实施例的接入网设备的示意性框图。
图15中的接入网设备3000包括存储器3001，收发器3002和处理器3003。其中，存储器3001，收发器3002和处理器3003的具体作用如下：
存储器3001，用于存储程序；
处理器3003用于执行存储器3001中存储的程序，当存储器3001中存储的程序被执行时，处理器3003和收发器3002用于执行图3或者图8所示的方法中由接入网设备执行的相关步骤。
当处理器3003和收发器3002用于执行图3所示的方法时，处理器3003和收发器3002具体用于：
收发器3002，用于向终端设备发送信道探测参考信号SRS时域资源指示信息，所述SRS时域资源指示信息指示SRS时域资源，所述SRS时域资源包括第一时隙的第1个符号至第8个符号中的至少一个；
处理器3003，用于在所述SRS时域资源上从所述终端设备接收SRS。
当处理器3003和收发器3002用于执行图3所示的方法时，处理器3003和收发器3002具体用于：
收发器3002，用于向终端设备发送信道探测参考信号SRS时域资源指示信息，所述SRS时域资源指示信息指示SRS时域资源，所述SRS时域资源由第一时隙的第9个符号至第14个符号中的3个符号或者5个符号或者6个符号组成；
处理器3003，用于在所述SRS时域资源上从所述终端设备接收SRS。
图16是本申请实施例的终端设备的示意性框图。
图16中的终端设备4000包括存储器4001，处理器4002和收发器4003。其中，存储器4001，处理器4002和收发器4003的具体作用如下：
存储器4001，用于存储程序；
处理器4002用于执行存储器4001中存储的程序，当存储器4001中存储的程序被执行时，收发器4003用于执行图3或者图8所示的方法中由终端设备执行的相关步骤。
当收发器4003用于执行图3所示的方法时，收发器4003具体用于：从接入网设备接收信道探测参考信号SRS时域资源指示信息，所述SRS时域资源指示信息指示SRS时域资源，所述SRS时域资源包括第一时隙的第1个符号至第8个符号中的至少一个；在所述SRS时域资源上向所述接入网设备发送SRS。
当收发器4003用于执行图8所示的方法时，收发器4003具体用于：从接入网设备接收信道探测参考信号SRS时域资源指示信息，所述SRS时域资源指示信息指示SRS时域资源，所述SRS时域资源由第一时隙的第9个符号至第14个符号中的3个符号或者5个符号或者6个符号组成；在所述SRS时域资源上向所述接入网设备发送SRS。
图17是本申请实施例的通信装置的示意性框图。
图17所示的通信装置5000可以是本申请实施例中的接入网设备中的芯片。通信单元5003可以是输入或者输出接口、管脚或者电路等。可选的，存储单元可以存储接入网设备侧的方法的计算机执行指令，以使处理单元5001执行上述实施例中接入网设备侧的方法。存储单元5002可以是寄存器、缓存或者RAM等，存储单元5002可以和处理单元5001集成在一起；存储单元5002可以是ROM或者可存储静态信息和指令的其他类型的静态存储设备，存储单元5002可以与处理单元5001相独立。可选的，随着无线通信技术的发展，收发机可以被集成在通信装置5000上，例如通信单元5003集成了收发机和网络接口。
图17所示的通信装置5000还可以是本申请实施例中的终端设备中的芯片。通信单元5003可以是输入或者输出接口、管脚或者电路等。可选的，存储单元可以存储接入网设备侧的方法的计算机执行指令，以使通信单元5003执行上述实施例中终端设备侧的方法。存储单元5002可以是寄存器、缓存或者RAM等，存储单元5002可以和处理单元5001集成在一起；存储单元5002可以是ROM或者可存储静态信息和指令的其他类型的静态存储设备，存储单元5002可以与处理单元5001相独立。可选的，随着无线通信技术的发展，收发机可以被集成在通信装置5000上，例如通信单元5003集成了收发机和网络接口。
本领域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。
所属领域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，所述单元的划分，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。
所述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。
所述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所述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(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的 介质。
以上所述，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，任何熟悉本技术领域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所述权利要求的保护范围为准。

Claims (20)

  1. 一种SRS传输的方法，其特征在于，包括：
    向终端设备发送信道探测参考信号SRS时域资源指示信息，所述SRS时域资源指示信息指示SRS时域资源，所述SRS时域资源包括第一时隙的第1个符号至第8个符号中的至少一个；
    在所述SRS时域资源上从所述终端设备接收SRS。
  2. 如权利要求1所述的方法，其特征在于，所述SRS时域资源还包括所述第一时隙的第9个符号至第14个符号中的M个符号，M为正整数。
  3. 根据权利要求2所述的方法，其特征在于，所述M＝3，或者M＝5，或者M＝6。
  4. 如权利要求1-3中任一项所述的方法，其特征在于，所述SRS时域资源中的符号是连续的。
  5. 如权利要求1-3中任一项所述的方法，其特征在于，所述SRS时域资源中的符号是非连续的。
  6. 一种SRS传输的方法，其特征在于，包括：
    向终端设备发送信道探测参考信号SRS时域资源指示信息，所述SRS时域资源指示信息指示SRS时域资源，所述SRS时域资源由第一时隙的第9个符号至第14个符号中的3个符号或者5个符号或者6个符号组成；
    在所述SRS时域资源上从所述终端设备接收SRS。
  7. 如权利要求6所述的方法，其特征在于，所述SRS时域资源中的符号是连续的。
  8. 如权利要求6所述的方法，其特征在于，所述SRS时域资源由第一时隙的第9个符号至第14个符号中的3个符号或者5个符号组成，所述SRS时域资源中的符号是非连续的。
  9. 一种SRS传输的方法，其特征在于，包括：
    从接入网设备接收信道探测参考信号SRS时域资源指示信息，所述SRS时域资源指示信息指示SRS时域资源，所述SRS时域资源包括第一时隙的第1个符号至第8个符号中的至少一个；
    在所述SRS时域资源上向所述接入网设备发送SRS。
  10. 如权利要求9所述的方法，其特征在于，所述SRS时域资源还包括所述第一时隙的第9个符号至第14个符号中的M个符号，M为正整数。
  11. 根据权利要求10所述的方法，其特征在于，所述M＝3，或者M＝5，或者M＝6。
  12. 如权利要求9-11中任一项所述的方法，其特征在于，所述SRS时域资源中的符号是连续的。
  13. 如权利要求9-11中任一项所述的方法，其特征在于，所述SRS时域资源中的符号是非连续的。
  14. 一种SRS传输的方法，其特征在于，包括：
    从接入网设备接收信道探测参考信号SRS时域资源指示信息，所述SRS时域资源指示信息指示SRS时域资源，所述SRS时域资源由第一时隙的第9个符号至第14个符号中 的3个符号或者5个符号或者6个符号组成；
    在所述SRS时域资源上向所述接入网设备发送SRS。
  15. 如权利要求14所述的方法，其特征在于，所述SRS时域资源中的符号是连续的。
  16. 如权利要求14所述的方法，其特征在于，所述SRS时域资源由3个符号或者5个符号组成，所述SRS时域资源中的符号是非连续的。
  17. 一种接入网设备，其特征在于，所述接入网设备包括收发器和处理器，所述收发器和所述处理器用于执行如权利要求1-8中任一项所述的方法。
  18. 一种终端设备，其特征在于，所述终端设备包括处理器和收发器，所述处理器和所述收发器用于执行如权利要求9-16中任一项所述的方法。
  19. 一种计算机可读存储介质，其特征在于，所述计算机可读介质存储介质用于存储程序代码，当所述程序代码被计算机执行时，所述计算机用于执行如权利要求1-8或者9-16中任一项所述的方法。
  20. 一种通信装置，其特征在于，所述通信装置包括处理器，所述处理器和存储器耦合，所述存储器用于存储计算机程序或指令，所述处理器用于执行存储器中的该计算机程序或指令，使得所述通信装置执行权利要求1-8中任一项或者9-16中任一项所述的方法。
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