WO2017193827A1 - Srs的发送处理方法及装置和发送方法、装置及系统 - Google Patents

Srs的发送处理方法及装置和发送方法、装置及系统 Download PDF

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Publication number
WO2017193827A1
WO2017193827A1 PCT/CN2017/082440 CN2017082440W WO2017193827A1 WO 2017193827 A1 WO2017193827 A1 WO 2017193827A1 CN 2017082440 W CN2017082440 W CN 2017082440W WO 2017193827 A1 WO2017193827 A1 WO 2017193827A1
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Prior art keywords
srs
component carrier
configuration information
sends
index
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PCT/CN2017/082440
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English (en)
French (fr)
Inventor
王瑜新
戴博
鲁照华
李儒岳
陈艺戬
李永
肖华华
吴昊
蔡剑兴
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中兴通讯股份有限公司
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Publication of WO2017193827A1 publication Critical patent/WO2017193827A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • 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
    • H04W72/0453—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
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • 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

Definitions

  • the present application relates to the field of communications, and in particular to a method, device, and method, apparatus, and system for transmitting and processing SRS.
  • a radio frame in a Long Term Evolution (LTE) system includes a Frequency Division Duplex (FDD) mode and a Time Division Duplex (TDD) mode.
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • Frame structure The frame structure of the FDD mode, as shown in Figure 1, a 10 msec (ms) radio frame consists of twenty slots of length 0.5 ms, numbered 0-19, and slots 2i and 2i+1. A subframe of length 1 ms.
  • the frame structure of the TDD mode as shown in FIG. 2, a 10 ms radio frame is composed of two half frames of 5 ms length, and one field includes five subframes of length 1 m s , and subframe i is defined. It is 2 time slots 2i and 2i+1 which are 0.5 ms long.
  • one slot contains seven symbols having a length of 66.7 microseconds (us), wherein the CP length of the first symbol is 5.21 us. The CP length of the remaining 6 symbols is 4.69us.
  • the extended cyclic prefix Extended Cyclic Prefix
  • one slot contains 6 symbols, and the CP length of all symbols is 16.67us.
  • Sub-frame "U” indicates a subframe dedicated to uplink transmission, and "S” indicates DwPTS (Downlink Pilot Time Slot), Guard Period (GP) and UpPTS (upstream) Frequency subslot, Uplink Pilot Time Slot)
  • DwPTS Downlink Pilot Time Slot
  • Guard Period GP
  • LTE TDD supports 5ms and 10ms uplink and downlink switching cycles. If the downlink to uplink transition point period is 5 ms, the special subframe will exist in two fields; if the downlink to uplink transition point period is 10 ms, the special subframe exists only in the first field. Subframe 0 and subframe 5 and DwPTS are always used for downlink transmission. The UpPTS and the subframe immediately following the special subframe are dedicated to the uplink transmission.
  • the physical downlink control channel PDCCH is used to carry uplink and downlink scheduling information, and uplink power control information.
  • the Downlink Control Information (DCI) format is divided into DCI formats 0, 1, 1A, 1B, 1C, 1D, 2, 2A, 3, 3A, etc., and later evolved to LTE-A Release 12 ( Added in LTE-A version 12) DCI format 2B, 2C, 2D to support a variety of different applications and transmission modes.
  • a base station e-Node-B, hereinafter referred to as an eNB
  • UE User Equipment
  • the SRS is a signal used between a terminal device and a base station to measure channel state information (CSI).
  • the UE periodically transmits the uplink SRS on the last data symbol of the transmission subframe according to parameters such as the frequency band indicated by the eNB, the frequency domain location, the sequence cyclic shift, the period, and the subframe offset.
  • the eNB determines the uplink CSI of the UE according to the received SRS, and performs operations such as frequency domain selection scheduling, closed loop power control, and the like according to the obtained CSI.
  • non-precoded SRS should be used, namely: antenna-specific SRS, and PUSCH for demodulation.
  • the reference signal (De Modulation Reference Signal, DMRS for short) is precoded.
  • the base station can estimate the original CSI of the uplink by receiving the non-precoded SRS, and the pre-coded DMRS cannot enable the base station to estimate the original CSI of the uplink.
  • the UE transmits the non-precoded SRS by using multiple antennas the SRS resources required by each UE are increased, which results in a decrease in the number of UEs that can be simultaneously multiplexed in the system.
  • the UE may send the SRS by using the high-level signaling (also referred to as triggered by the trigger type 0) or the downlink control information (also referred to as triggering by the trigger type 1), and the periodic SRS is triggered based on the high-level signaling, and is based on the downlink.
  • the control information triggers a non-periodic SRS.
  • the manner of aperiodic transmission of SRS is added, which improves the utilization of SRS resources to some extent and improves the flexibility of resource scheduling.
  • the LTE-A carrier type can be divided into three types: a backward compatible carrier, a non-backwards compatible carrier, and an extension carrier.
  • the extension carrier has two meanings: 1) as part of a component carrier (CC); 2) as a separate component carrier.
  • the extended carrier cannot work independently and must belong to a part of a set of component carriers, and at least one of the component carriers in the set Can work independently.
  • the extended carrier is not visible to LTE UEs.
  • LTE-A also introduces the concept of a bearer carrier, that is, the carrier that the UE initially accesses. After the access is successful, the UE can also be reconfigured with the high-level signaling to ensure that the load is balanced.
  • the PDCCH component set (PDCCH CC set) is defined, and the UE needs to perform blind detection in the PDCCH CC set.
  • the downlink component carrier set (Downlink component carrier set, DL CC set for short) is also defined. ), the PDSCH of the UE can be sent on any CC in the DL CC set.
  • cross-carrier scheduling is allowed, that is, the PDCCH on a certain component carrier can schedule PDSCH or PUSCH on multiple component carriers.
  • the downlink service is more than the uplink service.
  • the number of aggregated downlink component carriers is greater than the number of uplink component carriers.
  • a typical carrier aggregation capable UE generally supports only one or two uplink component carriers.
  • the SRS transmission and the channel reciprocity are beneficial to improve the downlink transmission performance.
  • the component carrier transmitted in the downlink is more than the component carrier transmitted in the uplink, there is no uplink service transmission on some component carriers.
  • LTE-A Release 14 LTE-A Release 14
  • At least one embodiment of the present application provides a method, an apparatus, and a transmission method, apparatus, and system for transmitting an SRS, so as to at least solve the problem that the UE cannot implement the SRS on a component carrier that does not transmit data services in the related art.
  • a transmission process of measuring a reference signal SRS includes: transmitting configuration information of the SRS to the user equipment UE, where the configuration information carries at least one of the following information: indication information for instructing the UE to send the SRS on the component carrier or the component carrier group; the SRS is in the component carrier or component Power configuration information on the carrier group.
  • the indication information includes: information used to indicate that the UE sends the component carrier index or the component carrier group index where the SRS is located.
  • the component carrier or the component carrier group includes: a component carrier or a component carrier group that is not used to transmit the physical uplink shared channel PUSCH; or a component carrier or a component carrier group that is not used to configure the PUSCH.
  • the sending the configuration information of the SRS to the UE includes: transmitting the configuration information to the UE in the high layer signaling and/or the downlink control signaling.
  • the method further includes: sending, by the high layer signaling, a configuration information index to the UE, where the configuration information index is used to indicate a location of the UE configuration information in the downlink control signaling.
  • the format of the downlink control signaling is configured to send the SRS on the component carrier or the component carrier group, where the information bits included in the downlink control signaling are used to carry configuration information corresponding to the at least one UE.
  • the configuration information corresponding to each UE occupies M bits in the information bits, where 1 ⁇ M ⁇ 10, and M is an integer.
  • the M-bit downlink control signaling includes 2 M states, and the 2 M states include at least one of the following states: a state for indicating that the SRS is not triggered; and a triggering for the i-th component carrier or the A state in which the SRS is transmitted on the i component carrier groups, where 1 ⁇ i ⁇ 32, and i is an integer.
  • the M-bit downlink control signaling is used to indicate that the UE sends an index of the component carrier where the SRS is located or an index of the component carrier group.
  • the power configuration information includes at least one of: SRS power relative to the uplink primary component carrier, PUSCH power or offset value of the physical uplink control channel PUCCH power; target received power of the SRS; and transmit power control of the SRS command.
  • the transmit power control command of the SRS occupies 1 bit or 2 bits.
  • the power adjustment value indicated by the transmit power control command is: -3 dB or 3 dB; and when the transmit power control command of the SRS occupies 2 bits, the transmit is performed.
  • the power adjustment value indicated by the power control command is -3dB, 0dB, 3dB, or 6dB.
  • the method before the sending the configuration information of the SRS to the UE, the method further includes: determining, according to at least one of the following parameters, a transmit power of the SRS: a maximum transmit power of the UE, a number of component carriers supported by the UE and simultaneously transmitting data and/or SRS, Target receiving power of PUSCH, transmission bandwidth of SRS, path loss compensation factor, path loss; determining power configuration information according to transmission power.
  • the method before the sending the configuration information of the SRS to the UE, the method further includes: the power control mode of the pre-configured SRS is an open loop mode.
  • a method for transmitting a SRS including: configuring at least one SRS parameter set for a UE, where the SRS parameter set includes at least one of the following parameters: an antenna port indicating that the UE sends the SRS, indicating the UE The bandwidth of the SRS, the frequency domain location indicating the UE to send the SRS, the frequency comb index indicating the UE to send the SRS, the cyclic shift of the SRS, the component carrier index or the component carrier group index indicating the UE to send the SRS.
  • the at least one SRS parameter set satisfies: 1 ⁇ N ⁇ 32, and N is an integer, wherein N represents the number of at least one SRS parameter set.
  • the method further includes: indicating, by the downlink control signaling, that the UE triggers or does not trigger the SRS; and instructing the UE to select one SRS parameter set from the at least one SRS parameter set, for triggering the SRS, if the UE is triggered to trigger the SRS.
  • the format of the downlink control signaling supports that multiple UEs are triggered or not triggered, and the SRS triggering indication information corresponding to each UE occupies M-bit downlink control signaling, where 1 ⁇ M ⁇ 10, and M Is an integer.
  • the SRS triggering indication index information is sent to the UE by using the high layer signaling, where the SRS triggering indication index information is used to indicate the corresponding SRS of the UE, before the SRS is triggered by the downlink control signaling. Trigger the location of the indication information in the downlink control signaling.
  • a method for sending an SRS including: The UE receives the configuration information of the SRS sent by the base station, where the configuration information carries at least one of the following information: indication information for instructing the UE to send the SRS on the component carrier or the component carrier group; and the SRS is on the component carrier or the component carrier group. Power configuration information; SRS is sent according to the configuration information.
  • the indication information includes: information used to indicate that the UE sends the component carrier index or the component carrier group index where the SRS is located.
  • the component carrier or the component carrier group includes: a component carrier or a component carrier group that is not used to transmit the physical uplink shared channel PUSCH; or a component carrier or a component carrier group that is not used to configure the PUSCH.
  • the receiving, by the UE, configuration information of the SRS sent by the base station includes: receiving, by the UE, configuration information that is sent by the base station by using the high layer signaling and/or the downlink control signaling.
  • the method further includes: receiving, by the UE, a configuration information index sent by the base station by using the high layer signaling, where the configuration information index is used to indicate a location of the UE configuration information in the downlink control signaling.
  • the format of the downlink control signaling is configured to send the SRS on the component carrier or the component carrier group, where the information bits included in the downlink control signaling are used to carry configuration information corresponding to the at least one UE.
  • the configuration information corresponding to each UE occupies M bits in the information bits, where 1 ⁇ M ⁇ 10, and M is an integer.
  • the M-bit downlink control signaling includes 2 M states, and the 2 M states include at least one of the following states: a state for indicating that the SRS is not triggered; and a triggering for the i-th component carrier or the A state in which the SRS is transmitted on the i component carrier groups, where 1 ⁇ i ⁇ 32, and i is an integer.
  • the M-bit downlink control signaling is used to indicate that the UE sends an index of the component carrier where the SRS is located or an index of the component carrier group.
  • the power configuration information includes at least one of: SRS power relative to the uplink primary component carrier, PUSCH power or offset value of the physical uplink control channel PUCCH power; target received power of the SRS; and transmit power control of the SRS command.
  • the transmit power control command of the SRS occupies 1 bit or 2 bits.
  • the power adjustment value indicated by the transmit power control command is: -3 dB or 3 dB; and when the transmit power control command of the SRS occupies 2 bits, the transmit is performed.
  • the power adjustment value indicated by the power control command is -3dB, 0dB, 3dB, or 6dB.
  • the method further includes: determining, by the base station, the transmit power of the SRS according to at least one of the following parameters: a maximum transmit power of the UE, and a component that simultaneously transmits the data and/or the SRS supported by the UE The number of carriers, the target received power of the PUSCH, the transmission bandwidth of the SRS, the path loss compensation factor, and the path loss; the base station determines the power configuration information according to the transmission power.
  • the method before the UE receives the configuration information of the SRS sent by the base station, the method further includes: the power control mode of the pre-configured SRS of the UE is an open loop mode.
  • a method for transmitting an SRS including: receiving, by a UE, at least one SRS parameter set configured by a base station, where the SRS parameter set includes at least one of the following parameters: an antenna port indicating that the UE sends the SRS, and an indication.
  • SRS receives, by a UE, at least one SRS parameter set configured by a base station, where the SRS parameter set includes at least one of the following parameters: an antenna port indicating that the UE sends the SRS, and an indication.
  • the bandwidth of the SRS sent by the UE the frequency domain location indicating the UE to send the SRS, the frequency comb index indicating the UE to send the
  • the at least one SRS parameter set satisfies: 1 ⁇ N ⁇ 32, and N is an integer, wherein N represents the number of at least one SRS parameter set.
  • the method further includes: receiving, by the UE, a downlink control signaling indication sent by the base station, where the downlink control signaling is used to indicate that the UE triggers or does not trigger the SRS, and instructing the UE to trigger the SRS from the at least one SRS.
  • a set of SRS parameters is selected in the parameter set to trigger the SRS.
  • the format of the downlink control signaling supports that multiple UEs are triggered or not triggered, and the SRS triggering indication information corresponding to each UE occupies M-bit downlink control signaling, where 1 ⁇ M ⁇ 10, and M Is an integer.
  • the method further includes: receiving, by the UE, SRS trigger indication index information that is sent by the base station by using the high layer signaling, where the SRS trigger indication index information is used to indicate the corresponding SRS triggering finger of the UE Indicates the location of the information in the downlink control signaling.
  • a SRS transmission processing apparatus including: a first sending module, configured to send configuration information of an SRS to a UE, where the configuration information carries at least one of the following information: The indication information indicating that the UE transmits the SRS on the component carrier or the component carrier group; the power configuration information of the SRS on the component carrier or the component carrier group.
  • a SRS transmission processing apparatus including: a configuration module, configured to configure at least one SRS parameter set for a UE, where the SRS parameter set includes at least one of the following parameters: indicating that the UE sends the SRS.
  • the antenna port the bandwidth indicating the UE to send the SRS, the frequency domain location indicating the UE to send the SRS, the frequency comb index indicating the UE to send the SRS, the cyclic shift, the component carrier index or the component carrier group index indicating the UE to send the SRS.
  • a SRS sending apparatus including: a first receiving module, configured to receive configuration information of an SRS sent by a base station, where the configuration information carries at least one of the following information: Instructing the UE to transmit the SRS indication information on the component carrier or the component carrier group; the power configuration information of the SRS on the component carrier or the component carrier group; and the second sending module, configured to send the SRS according to the configuration information.
  • a SRS sending apparatus including: a second receiving module, configured to receive at least one SRS parameter set configured by a base station, where the SRS parameter set includes at least one of the following parameters: instructing the UE to send The antenna port of the SRS, the bandwidth indicating the UE to send the SRS, the frequency domain location indicating the UE to send the SRS, the frequency comb index indicating the UE to send the SRS, the cyclic shift, the component carrier index or the component carrier group index indicating the UE to send the SRS;
  • the three transmitting module is configured to send the SRS according to the at least one SRS parameter set.
  • a base station configured to send configuration information of an SRS to a UE, where the configuration information carries at least one of the following information: used to indicate that the UE sends on a component carrier or a component carrier group.
  • the indication information of the SRS the power configuration information of the SRS on the component carrier or the component carrier group.
  • a base station configured to configure at least one SRS parameter set for a UE, where the SRS parameter set includes at least one of the following parameters: an antenna port indicating that the UE sends the SRS, and a bandwidth indicating that the UE sends the SRS. Instructing the UE to transmit the frequency domain of the SRS And indicating a frequency comb index, a cyclic shift, and a component carrier index or a component carrier group index indicating that the UE sends the SRS.
  • a UE configured to receive configuration information of an SRS sent by a base station, where the configuration information carries at least one of the following information: used to indicate that the UE is on a component carrier or a component carrier group.
  • the indication information of the SRS is transmitted; the power configuration information of the SRS on the component carrier or the component carrier group; and the SRS is transmitted according to the configuration information.
  • a UE configured to receive at least one SRS parameter set configured by a base station, where the SRS parameter set includes at least one of the following parameters: an antenna port indicating that the UE sends the SRS, and indicating that the UE sends the SRS.
  • a SRS transmission system including: a base station, configured to send configuration information of an SRS to a UE, where the configuration information carries at least one of the following information: used to indicate that the UE is in a component.
  • the indication information of the SRS is transmitted on the carrier or the component carrier group, the power configuration information of the SRS on the component carrier or the component carrier group, and the UE is configured to receive the configuration information, and send the SRS according to the configuration information.
  • a SRS transmission system including: a base station, configured to configure at least one SRS parameter set for a UE, where the SRS parameter set includes at least one of the following parameters: an antenna port indicating that the UE sends the SRS And indicating, by the UE, a bandwidth of the SRS, a frequency domain location indicating that the UE sends the SRS, a frequency comb index indicating that the UE sends the SRS, a cyclic shift, a component carrier index or a component carrier group index indicating that the UE sends the SRS, and the UE is set to receive At least one SRS parameter set and transmitting the SRS according to at least one SRS parameter set.
  • the SRS parameter set includes at least one of the following parameters: an antenna port indicating that the UE sends the SRS And indicating, by the UE, a bandwidth of the SRS, a frequency domain location indicating that the UE sends the SRS, a frequency comb index indicating that the UE sends the SRS,
  • a storage medium is also provided.
  • the storage medium is configured to store program code for performing the following steps: transmitting configuration information of the SRS to the UE, wherein the configuration information carries at least one of the following information: used to instruct the UE to send the SRS on the component carrier or the component carrier group. Indication information; power configuration information of the SRS on a component carrier or a component carrier group.
  • a storage medium is also provided.
  • the storage medium is configured to store program code for performing the following steps: configuring at least one SRS parameter set for the UE, the SRS parameter set comprising at least one of the following parameters: an antenna port indicating the UE to send the SRS, a bandwidth indicating the UE to send the SRS, an indication
  • the UE sends the frequency domain location of the SRS, the frequency comb index indicating the UE to send the SRS, the cyclic shift, the component carrier index or the component carrier group index indicating the UE to send the SRS.
  • a storage medium is also provided.
  • the storage medium is configured to store program code for performing the following steps: receiving configuration information of an SRS sent by a base station, where the configuration information carries at least one of the following information: used to instruct the UE to send an SRS on a component carrier or a component carrier group The indication information; the power configuration information of the SRS on the component carrier or the component carrier group; and the SRS is transmitted according to the configuration information.
  • a storage medium is also provided.
  • the storage medium is configured to store program code for performing the following steps: receiving at least one SRS parameter set configured by the base station, the SRS parameter set including at least one of the following parameters: an antenna port indicating the UE to send the SRS, a bandwidth indicating the UE to send the SRS, And indicating a frequency domain location where the UE sends the SRS, a frequency comb index indicating that the UE sends the SRS, a cyclic shift, a component carrier index or a component carrier group index indicating that the UE sends the SRS, and sending the SRS according to the at least one SRS parameter set.
  • At least one embodiment of the present application by transmitting configuration information of the SRS to the UE, to instruct the UE to transmit the SRS on the component carrier or the component carrier group, or indicating the power configuration information of the SRS on the component carrier or the component carrier group,
  • the SRS is transmitted on the component carrier that does not send the data service, so that the base station side can improve the performance of the downlink transmission by measuring the SRS and utilizing the channel reciprocity, thereby achieving the effect of improving the overall performance of the system.
  • FIG. 1 is a schematic diagram of a frame structure of an FDD mode in the related art
  • FIG. 2 is a schematic diagram of a frame structure of a TDD mode in the related art
  • FIG. 3 is a flowchart of a method for transmitting an SRS according to an embodiment of the present application
  • FIG. 4 is a structural block diagram of a transmission processing apparatus of an SRS according to an embodiment of the present application.
  • FIG. 5 is a flowchart of a method for transmitting an SRS according to an embodiment of the present application.
  • FIG. 6 is a structural block diagram of a transmitting apparatus of an SRS according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a transmission system of an SRS according to an embodiment of the present application.
  • FIG. 3 is a flowchart of a SRS transmission processing method according to an embodiment of the present application. As shown in FIG. 3, the flow includes the following steps:
  • Step S302 Send configuration information of the SRS to the user equipment UE, where the configuration information carries at least one of the following information: indication information for instructing the UE to send the SRS on the component carrier or the component carrier group; the SRS is in the component carrier or component Power configuration information on the carrier group.
  • the configuration information of the SRS is used to indicate that the UE transmits the SRS on the component carrier or the component carrier group, or the power configuration related to transmitting the SRS on the component carrier or the component carrier group.
  • the indication information used to indicate that the UE sends the SRS on the component carrier or the component carrier group may be used to: instruct the UE to send the SRS on a specific component carrier or a component carrier group.
  • the index of the component carrier or the component carrier group may be sent to the UE through the high layer signaling or the downlink control signaling, and the UE sends the SRS on the component carrier or the component carrier group corresponding to the index according to the indication.
  • this embodiment is not limited to this.
  • the UE is instructed to send an SRS on a component carrier or a component carrier group, and the UE determines a component carrier or a component carrier group according to the indication, for example, a component carrier or a component carrier may be selected in a pre-agreed component carrier or a component carrier group. Group, transmitting SRS on the component carrier or component carrier group.
  • the foregoing indication information includes: information used to indicate that the UE sends the component carrier index or the component carrier group index where the SRS is located.
  • the foregoing power configuration information includes at least one of: SRS power relative to an uplink primary component carrier, a PUSCH power, or an offset value of a physical uplink control channel PUCCH power; a target received power of the SRS; and a transmit power of the SRS. control commands.
  • the execution body of the foregoing step may be a base station or the like, but is not limited thereto.
  • At least one embodiment of the present application implements the configuration information of the SRS to the UE to indicate that the UE transmits the SRS on the component carrier or the component carrier group, or indicates the power configuration information of the SRS on the component carrier or the component carrier group,
  • the SRS is transmitted on the component carrier that does not send the data service, so that the base station side can improve the performance of the downlink transmission by measuring the SRS and utilizing the channel reciprocity, thereby achieving the effect of improving the overall performance of the system.
  • the foregoing component carrier or component carrier group includes: a component carrier or a component carrier group that is not used to transmit a physical uplink shared channel PUSCH; or a component carrier or a component carrier group that is not used to configure a PUSCH.
  • This embodiment supports the UE transmitting the SRS on a component carrier or a component carrier group that does not transmit or configure the PUSCH.
  • the sending the configuration information of the SRS to the UE includes: transmitting the configuration information to the UE in the high layer signaling and/or the downlink control signaling.
  • the high-level signaling or the downlink control signaling may carry the configuration information of the SRSs of the multiple UEs at the same time.
  • each UE may analyze each of the corresponding ones.
  • the configuration information of the SRS further transmits the SRS according to the configuration information of the corresponding SRS.
  • the method further includes: sending, by the high layer signaling, a configuration information index to the UE, where the configuration information index is used to indicate a location of the UE configuration information in the downlink control signaling.
  • the configuration information of the SRS is sent to the UE by using the downlink control signaling, where the downlink control information includes configuration information of multiple UEs, and each UE needs to determine that the downlink control signaling is applicable to Its own configuration information.
  • the configuration information index is sent to the UE through the high layer signaling, that is, the UE is notified of the location of the configuration information of the SRS in the downlink control signaling, and the UE can directly identify the configuration information corresponding to the SRS of the UE.
  • the signaling may be set to be sent to each UE involved in the downlink control signaling, or may be sent to each UE in the preset transmission list, and so on, which is not specifically limited in this application.
  • sequence of sending the downlink control signaling and the sending the high-layer signaling may be interchanged, or may be carried in the same signaling, which is not specifically limited in this application.
  • the format of the downlink control signaling is configured to send the SRS on the component carrier or the component carrier group, where the information bits included in the downlink control signaling are used to carry configuration information corresponding to the at least one UE.
  • the format of the downlink control signaling is a downlink control signaling format for transmitting an SRS in each component carrier or carrier group, and the information bits are composed of configuration information of SRSs of multiple UEs.
  • the configuration information corresponding to each UE occupies M bits in the information bits, where 1 ⁇ M ⁇ 10, and M is an integer.
  • the M-bit downlink control signaling includes 2 M states, and the 2 M states include at least one of the following states: a state for indicating that the SRS is not triggered; and a triggering for the i-th component carrier or the A state in which the SRS is transmitted on the i component carrier groups, where 1 ⁇ i ⁇ 32, and i is an integer.
  • the downlink control signaling may include an indication bit of the trigger bit of the SRS and the configuration information of the SRS, and the two together indicate which component carrier or carrier group the UE transmits the SRS.
  • the SRS request bit in the format 2C is used to determine whether to trigger the SRS
  • the SRS transmission command corresponding to the UE in the fomat 6 is used to determine the component carrier index that triggers the SRS transmission.
  • the M-bit downlink control signaling is used to indicate that the UE sends an index of the component carrier where the SRS is located or an index of the component carrier group.
  • the power configuration information includes at least one of: SRS power relative to the uplink primary component carrier, PUSCH power or offset value of the physical uplink control channel PUCCH power; target received power of the SRS; and transmit power control of the SRS command.
  • the transmit power control command of the SRS occupies 1 bit or 2 bits.
  • the transmit power is used when the transmit power control command of the SRS occupies 1 bit.
  • the power adjustment value indicated by the control command is -3dB or 3dB; in the case where the SRS transmission power control command occupies 2 bits, the power adjustment value indicated by the transmission power control command is -3dB, 0dB, 3dB, or 6dB. .
  • the transmission power control command of the SRS may be set to occupy 1 bit or 2 bits.
  • the two states indicated by 1 bit may include: the power adjustment value is -3 dB, and the power adjustment value is 3 dB; the four states indicated by the two bits may include: the power adjustment value is -3 dB, the power adjustment value is 0 dB, and the power adjustment is performed. The value is 3dB and the power adjustment is 6dB.
  • the method before the sending the configuration information of the SRS to the UE, the method further includes: determining, according to at least one of the following parameters, a transmit power of the SRS: a maximum transmit power of the UE, a number of component carriers supported by the UE and simultaneously transmitting data and/or SRS, Target receiving power of PUSCH, transmission bandwidth of SRS, path loss compensation factor, path loss; determining power configuration information according to transmission power.
  • the method before the sending the configuration information of the SRS to the UE, the method further includes: the power control mode of the pre-configured SRS is an open loop mode.
  • the base station and the UE may pre-agreed the power control mode, for example, in an open loop manner.
  • a method for transmitting a SRS includes: configuring at least one SRS parameter set for the UE, where the SRS parameter set includes at least one of the following parameters: an antenna port that indicates that the UE sends the SRS, a bandwidth that indicates the UE sends the SRS, a frequency domain location that indicates the UE sends the SRS, and indicates that the UE sends the SRS parameter.
  • the execution subject of this embodiment may be a base station, but is not limited thereto.
  • the foregoing at least one SRS parameter set may be sent to the UE by using high layer signaling.
  • the at least one SRS parameter set satisfies: 1 ⁇ N ⁇ 32, and N is an integer, where N represents the number of at least one SRS parameter set.
  • the method further includes: indicating, by the downlink control signaling, that the UE triggers or does not trigger the SRS; and instructing the UE to select one SRS parameter set from the at least one SRS parameter set, for triggering the SRS, if the UE is triggered to trigger the SRS.
  • the format of the downlink control signaling supports simultaneously indicating that multiple UEs are triggered or not triggered.
  • the SRS, the SRS triggering indication information corresponding to each UE occupies M-bit downlink control signaling, where 1 ⁇ M ⁇ 10, and M is an integer.
  • the SRS triggering indication information that is, the downlink control signaling, is used to indicate that multiple UEs trigger or do not trigger the SRS.
  • the SRS triggering indication index information is sent to the UE by using the high layer signaling, where the SRS triggering indication index information is used to indicate the corresponding SRS of the UE, before the SRS is triggered by the downlink control signaling. Trigger the location of the indication information in the downlink control signaling.
  • the SRS parameter set is used to indicate that the UE sends the SRS on the component carrier or the component carrier group, so that the UE can send the SRS on the component carrier that does not send the data service, thereby helping the base station.
  • the side improves the performance of the downlink transmission by measuring the SRS and utilizing the channel reciprocity, thereby achieving the effect of improving the overall performance of the system.
  • the base station sends the configuration information of the SRS to the UE by using the high layer signaling or the downlink control signaling, where the configuration information of the SRS includes: information for indicating that the UE sends the SRS on one component carrier or a group of component carriers.
  • the one component carrier or a group of component carriers is a component carrier that does not transmit or does not configure a physical uplink shared channel PUSCH.
  • the base station configures index information for the UE by using the high layer signaling, where the index information is used to indicate the location where the configuration information of the corresponding SRS of the UE is located in the downlink control signaling.
  • the new downlink control signaling format (herein referred to as format 6) in the version after Rel-14 or Rel-14 is used to instruct the UE to send SRS on a component carrier or a group of component carriers.
  • the bit is composed of SRS transmission power control commands of multiple UEs, and the SRS transmission command of each UE occupies N bits, as follows:
  • the SRS sends the command number 1, the SRS sends the command number 2, ..., and the SRS sends the command number N. among them,
  • Lformat 0 is the payload size of format 0 before the CRC check
  • N is an integer between 1 and 10, including 1 and 10.
  • the index information configured by the base station for the user equipment 1 by the high-layer signaling is 2, and the user equipment 1 detects the signaling of the format 6, and takes the M-bit SRS transmission command number 2 as the user.
  • Trigger SRS send command field description ‘000’ No SRS trigger ‘001’ Trigger SRS is sent on component carrier 0 ‘010’ Trigger SRS is sent on component carrier 1 ‘011’ Trigger SRS is sent on component carrier 2 ‘100’ Trigger SRS is sent on component carrier 3 ‘101’ Trigger SRS is sent on component carrier 4. ‘110’ Trigger SRS is sent on component carrier 5 ‘111’ Trigger SRS is sent on component carrier 6.
  • Trigger SRS send command field description ‘000’ No SRS trigger ‘001’ Trigger SRS is sent in component carrier group 0 ‘010’ Trigger SRS is sent in component carrier group 1 ‘011’ Trigger SRS is sent in component carrier group 2 ‘100’ Trigger SRS is sent in component carrier group 3 ‘101’ Trigger SRS is sent in component carrier group 4 ‘110’ Trigger SRS is sent in component carrier group 5 ‘111’ Trigger SRS is sent in component carrier group 6.
  • the configuration information of the SRS may further include: a point for indicating that the UE sends the SRS.
  • Information on the carrier index or component carrier group index may be further included in the configuration information of the SRS.
  • the base station combines the SRS trigger bit in the original downlink control signaling format with the foregoing SRS configuration information to jointly indicate which component carrier the UE transmits the SRS.
  • the SRS request bit in the format 2C is used to determine whether to trigger the SRS
  • the SRS transmission command corresponding to the UE in the fomat 6 is used to determine the component carrier index that triggers the SRS transmission.
  • M 3
  • the state indicated by the M-bit SRS transmission command can be as shown in Table 5 or Table 6 below:
  • the UE receives and detects the configuration information of the SRS, and sends an SRS to the base station according to the configuration information.
  • the base station configures the N SRS parameter sets for the UE by using the high layer signaling, where 1 ⁇ N ⁇ 32, and N is an integer, and the SRS parameter set includes parameters including at least one of the following: Antenna port, transmitted bandwidth, transmitted frequency domain location, transmitted frequency comb index, cyclic shift, component carrier or component carrier group index, etc.
  • the base station indicates whether the UE triggers the SRS through the M-bit downlink control signaling, and dynamically selects a set of parameter sets for triggering the SRS from the N SRS parameter sets when the SRS is triggered, where 1 ⁇ M ⁇ 10, and M is an integer. Assuming N is 7 and M is 3, the state indicated by the M-bit downlink control signaling is as shown in Table 7.
  • the value of the SRS send command field description ‘000’ Do not trigger aperiodic SRS ‘001’
  • Select the first set of SRS parameter sets in the high-level configuration to trigger the aperiodic SRS ‘010’ Select the second set of SRS parameter sets in the high-level configuration to trigger the aperiodic SRS ‘011’
  • Select the fifth set of SRS parameter sets in the high-level configuration to trigger the aperiodic SRS ‘110’ Select the sixth set of SRS parameter sets in the high-level configuration to trigger the aperiodic SRS ‘111’
  • dynamic selection may be performed to trigger SRS on different component carriers or component carrier groups.
  • the downlink control signaling format supports triggering SRS for multiple UEs at the same time, and each UE occupies the downlink control signaling of the M bits.
  • the base station sends the index information (that is, the foregoing SRS trigger indication index information) to the UE by using the high layer signaling, where the index information is used to indicate the location of the M bit of the UE in the downlink control signaling.
  • the index information that is, the foregoing SRS trigger indication index information
  • the base station sends configuration information of the SRS to the UE by using the high layer signaling and the downlink control signaling, where the configuration information of the SRS includes: power configuration information of the SRS on one component carrier or a group of component carriers;
  • the one component carrier or a group of component carriers is a component carrier that does not transmit or configure the PUSCH.
  • the power configuration information includes: an SRS power or an offset value of the PUSCH power or the PUCCH power, a target received power of the SRS, and an SRS transmission with respect to the uplink primary component carrier. Send power control commands.
  • the SRS transmission power control command occupies 2 bits, and the 4 states indicated by the 2 bits include: the power adjustment value is -3 dB, the power adjustment value is 0 dB, the power adjustment value is 3 dB, and the power adjustment value is 6 dB.
  • the meaning of the SRS transmission power control command field is as shown in Table 8 below.
  • the SRS transmission power control command occupies 1 bit, and the two states indicated by 1 bit include: the power adjustment value is -3 dB, and the power adjustment value is 3 dB.
  • the meaning of the SRS transmission power control command field is as shown in Table 9 below.
  • the base station sends configuration information of the SRS to the UE by using the high layer signaling and the downlink control signaling, where the configuration information of the SRS includes: power configuration information of the SRS on one component carrier or a group of component carriers;
  • the component carrier or component carrier group is a component carrier that does not transmit or configure the physical uplink shared channel PUSCH.
  • the power configuration information or the power configuration information determining parameter includes: a maximum transmit power of the UE, and a number of component carriers that the UE can support simultaneously transmit data or SRS, SRS or Target received power of PUSCH, transmission bandwidth of SRS, loss compensation factor, path loss, SRS or PUSCH transmission power control command.
  • the transmission power of the SRS on the subframe i component carrier c is expressed using the following formula:
  • the transmission power of the SRS on the subframe i component carrier c min ⁇ the maximum transmission power on the subframe i component carrier c, the SRS power offset on the component carrier c + 10 log 10 (the SRS transmission bandwidth on the component carrier c) + component Target received power of PUSCH on carrier c + path loss compensation factor on component carrier c * path loss on component carrier c ⁇ .
  • the base station and the UE may pre-agreed that the power control mode of the SRS is an open loop power control mode.
  • the configuration information of the SRS is set by the base station, and the configuration information of the SRS is sent to the UE to indicate that the UE sends the SRS on one component carrier or a group of component carriers, or the SRS is on one component carrier or one.
  • the power allocation is performed on the component carrier, so that the UE transmits the SRS on the component carrier that does not send the data service, so that the base station side can improve the downlink transmission performance by measuring the SRS and utilizing the channel reciprocity, thereby improving the overall system performance. Performance effect.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present application which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present application.
  • a SRS transmission processing device is also provided, which is configured to implement the foregoing embodiments and preferred embodiments, and has not been described again.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 4 is a structural block diagram of a SRS transmission processing apparatus according to an embodiment of the present application. As shown in FIG. 4, the apparatus includes:
  • the first sending module 42 is configured to send configuration information of the SRS to the user equipment UE, where the configuration information carries at least one of the following information: indication information for instructing the UE to send the SRS on the component carrier or the component carrier group; Power configuration information on a component carrier or component carrier group.
  • the first sending module 42 sends configuration information of the SRS to the UE, to indicate that the UE sends the SRS on the component carrier or the component carrier group, or indicates the power configuration information of the SRS on the component carrier or the component carrier group, and implements the UE.
  • the SRS can be sent on the component carrier that does not send the data service, so that the base station side can improve the performance of the downlink transmission by measuring the SRS and utilizing the channel reciprocity, thereby achieving the effect of improving the overall performance of the system.
  • a SRS transmission processing apparatus including: a configuration module, configured to configure at least one SRS parameter set for a UE, where the SRS parameter set includes at least one of the following parameters: instructing the UE to send an SRS The antenna port, the bandwidth indicating the UE to send the SRS, the frequency domain location indicating the UE to send the SRS, the frequency comb index indicating the UE to send the SRS, the cyclic shift, the component carrier index or the component carrier group index indicating the UE to send the SRS.
  • the configuration module configures at least one SRS parameter set for the UE to indicate or trigger the UE to send the SRS on the component carrier or the component carrier group, so that the UE can send the SRS on the component carrier that does not send the data service, thereby
  • the base station side improves the performance of the downlink transmission by measuring the SRS and utilizing the channel reciprocity, thereby achieving the effect of improving the overall performance of the system.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination.
  • the forms are located in different processors.
  • a method for sending an SRS is further provided. As shown in FIG. 5, the method includes:
  • Step S502 The UE receives the configuration information of the SRS sent by the base station, where the configuration information carries at least one of the following information: used to indicate that the UE sends the component carrier or the component carrier group.
  • Step S504 sending an SRS according to the configuration information.
  • the SRS by receiving the configuration information of the SRS sent by the base station, the SRS is sent on the component carrier or the component carrier group according to the indication of the configuration information, or the power of the SRS on the component carrier or the component carrier group is configured, thereby ensuring that the UE can be configured.
  • the SRS is transmitted on the component carrier that does not send the data service, so that the base station side can improve the performance of the downlink transmission by measuring the SRS and utilizing the channel reciprocity, thereby achieving the effect of improving the overall performance of the system.
  • the foregoing indication information includes: information used to indicate that the UE sends the component carrier index or the component carrier group index where the SRS is located.
  • the component carrier or the component carrier group includes: a component carrier or a component carrier group that is not used to transmit the physical uplink shared channel PUSCH; or a component carrier or a component carrier group that is not used to configure the PUSCH.
  • the receiving, by the UE, configuration information of the SRS sent by the base station includes: receiving, by the UE, configuration information that is sent by the base station by using the high layer signaling and/or the downlink control signaling.
  • the method further includes: receiving, by the UE, a configuration information index sent by the base station by using the high layer signaling, where the configuration information index is used to indicate a location of the UE configuration information in the downlink control signaling.
  • the format of the downlink control signaling is configured to send the SRS on the component carrier or the component carrier group, where the information bits included in the downlink control signaling are used to carry configuration information corresponding to the at least one UE.
  • the configuration information corresponding to each UE occupies M bits in the information bits, where 1 ⁇ M ⁇ 10, and M is an integer.
  • the M-bit downlink control signaling includes 2 M states, and the 2 M states include at least one of the following states: a state for indicating that the SRS is not triggered; and a triggering for the i-th component carrier or the A state in which the SRS is transmitted on the i component carrier groups, where 1 ⁇ i ⁇ 32, and i is an integer.
  • the M-bit downlink control signaling is used to indicate that the UE sends an index of the component carrier where the SRS is located or an index of the component carrier group.
  • the power configuration information includes at least one of: SRS power relative to the uplink primary component carrier, PUSCH power or offset value of the physical uplink control channel PUCCH power; target received power of the SRS; and transmit power control of the SRS command.
  • the transmit power control command of the SRS occupies 1 bit or 2 bits.
  • the power adjustment value indicated by the transmit power control command is: -3 dB or 3 dB; and when the transmit power control command of the SRS occupies 2 bits, the transmit is performed.
  • the power adjustment value indicated by the power control command is -3dB, 0dB, 3dB, or 6dB.
  • the method further includes: determining, by the base station, the transmit power of the SRS according to at least one of the following parameters: a maximum transmit power of the UE, and a component that simultaneously transmits the data and/or the SRS supported by the UE The number of carriers, the target received power of the PUSCH, the transmission bandwidth of the SRS, the path loss compensation factor, and the path loss; the base station determines the power configuration information according to the transmission power.
  • the method before the UE receives the configuration information of the SRS sent by the base station, the method further includes: the power control mode of the pre-configured SRS of the UE is an open loop mode.
  • a SRS sending device is also provided, which is configured to implement the foregoing embodiments and preferred embodiments, and has not been described again.
  • FIG. 6 is a structural block diagram of an apparatus for transmitting an SRS according to an embodiment of the present application. As shown in FIG. 6, the apparatus includes:
  • the receiving module 62 is configured to receive configuration information of the SRS sent by the base station, where the configuration information carries at least one of the following information: indication information used to indicate that the UE sends the SRS on the component carrier or the component carrier group; the SRS is on the component carrier or Power configuration information on a component carrier group;
  • the second sending module 64 is configured to send the SRS according to the configuration information.
  • the receiving module 62 receives the configuration information of the SRS sent by the base station, and the second sending module 64 sends the SRS on the component carrier or the component carrier group according to the indication of the configuration information, or the power of the SRS on the component carrier or the component carrier group.
  • the configuration ensures that the UE can send the SRS on the component carrier that does not send the data service, so that the base station side can improve the downlink transmission performance by measuring the SRS and utilizing the channel reciprocity, thereby improving the system integrity. The effect of energy.
  • a method for transmitting an SRS includes: receiving, by a UE, at least one SRS parameter set configured by a base station, where the SRS parameter set includes at least one of the following parameters: an antenna indicating that the UE sends the SRS The port, the bandwidth indicating the UE to send the SRS, the frequency domain location indicating the UE to send the SRS, the frequency comb index indicating the UE to send the SRS, the cyclic shift, the component carrier index indicating the UE to send the SRS, or the component carrier group index; according to at least one SRS The parameter set sends the SRS.
  • the UE by receiving at least one SRS parameter set configured by the base station and transmitting the SRS according to the at least one SRS parameter set, the UE can ensure that the UE can send the SRS on the component carrier that does not send the data service, thereby helping the base station side to measure and use the SRS.
  • Channel reciprocity improves the performance of downlink transmission, and thus achieves the effect of improving the overall performance of the system.
  • the at least one SRS parameter set satisfies: 1 ⁇ N ⁇ 32, and N is an integer, wherein N represents the number of at least one SRS parameter set.
  • the method further includes: receiving, by the UE, a downlink control signaling indication sent by the base station, where the downlink control signaling is used to indicate that the UE triggers or does not trigger the SRS, and instructing the UE to trigger the SRS from the at least one SRS.
  • a set of SRS parameters is selected in the parameter set to trigger the SRS.
  • the format of the downlink control signaling supports that multiple UEs are triggered or not triggered, and the SRS triggering indication information corresponding to each UE occupies M-bit downlink control signaling, where 1 ⁇ M ⁇ 10, and M Is an integer.
  • the method further includes: receiving, by the UE, the SRS trigger indication index information that is sent by the base station by using the high layer signaling, where the SRS trigger indication index information is used to indicate the location of the corresponding SRS trigger indication information of the UE in the downlink control signaling.
  • An apparatus for transmitting an SRS is also provided in an embodiment of the present application.
  • the apparatus is configured to implement the foregoing embodiments and preferred embodiments, and details are not described herein.
  • the transmitting device of the SRS includes: a second receiving module, configured to receive at least one SRS parameter set configured by the base station, where the SRS parameter set includes at least one of the following parameters: an antenna port indicating that the UE sends the SRS, a bandwidth indicating the UE to send the SRS, and an indication.
  • the frequency domain location where the UE sends the SRS And indicating, by the UE, a frequency comb index, a cyclic shift, a component carrier index or a component carrier group index indicating that the UE sends the SRS, and a third sending module, configured to send the SRS according to the at least one SRS parameter set.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination.
  • the forms are located in different processors.
  • a base station configured to send configuration information of an SRS to a UE, where the configuration information carries at least one of the following information: used to indicate that the UE is on a component carrier or a component carrier group.
  • the indication information of the SRS is transmitted; the power configuration information of the SRS on the component carrier or the component carrier group.
  • a base station configured to configure at least one SRS parameter set for the UE, where the SRS parameter set includes at least one of the following parameters: an antenna port indicating that the UE sends the SRS, and indicating that the UE sends the SRS.
  • a UE configured to receive configuration information of an SRS sent by a base station, where the configuration information carries at least one of the following information: used to indicate that the UE is in a component carrier or a component carrier group.
  • the indication information of the SRS is transmitted; the power configuration information of the SRS on the component carrier or the component carrier group; and the SRS is transmitted according to the configuration information.
  • a UE configured to receive at least one SRS parameter set configured by a base station, where the SRS parameter set includes at least one of the following parameters: an antenna port indicating that the UE sends the SRS, and indicating that the UE sends the SRS.
  • a SRS transmission system as shown in FIG. 7, the system includes:
  • the base station 72 is configured to send configuration information of the SRS to the user equipment UE, where the configuration
  • the information carries at least one of the following information: indication information for indicating that the UE transmits the SRS on the component carrier or the component carrier group, and power configuration information of the SRS on the component carrier or the component carrier group;
  • the UE 74 is configured to receive configuration information and transmit an SRS according to the configuration information.
  • a system for transmitting an SRS including: a base station, configured to configure at least one SRS parameter set for the UE, where the SRS parameter set includes at least one of the following parameters: an antenna indicating that the UE sends the SRS The port, the bandwidth indicating the UE to send the SRS, the frequency domain location indicating the UE to send the SRS, the frequency comb index indicating the UE to send the SRS, the cyclic shift, the component carrier index or the component carrier group index indicating the UE to send the SRS, and the UE is set to Receiving at least one SRS parameter set and transmitting the SRS according to the at least one SRS parameter set.
  • Embodiments of the present application also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the configuration information of the SRS is sent to the user equipment UE, where the configuration information carries at least one of the following information: indication information used to indicate that the UE sends the SRS on the component carrier or the component carrier group; and the SRS is in the component carrier or the component carrier group. Power configuration information on.
  • Embodiments of the present application also provide another storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the UE receives the configuration information of the SRS sent by the base station, where the configuration information carries at least one of the following information: indication information used to indicate that the UE sends the SRS on the component carrier or the component carrier group; and the SRS is in the component carrier or the component carrier group. Power configuration information;
  • the UE sends an SRS according to the configuration information.
  • the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • a mobile hard disk e.g., a hard disk
  • magnetic memory e.g., a hard disk
  • modules or steps of the present application can be implemented by a general-purpose computing device, which can be centralized on a single computing device or distributed over a network of multiple computing devices. Alternatively, they can be implemented by program code executable by the computing device, such that They may be stored in a storage device by a computing device, and in some cases, the steps shown or described may be performed in an order different than that herein, or separately fabricated into individual integrated circuit modules. Alternatively, multiple modules or steps of them can be implemented as a single integrated circuit module. Thus, the application is not limited to any particular combination of hardware and software.
  • the method, apparatus, and method, apparatus, and system for transmitting SRS provided by the embodiments of the present application have the following beneficial effects: the UE can transmit SRS on a component carrier that does not send data services, thereby helping The base station side improves the performance of the downlink transmission by measuring the SRS and utilizing the channel reciprocity, thereby achieving the effect of improving the overall performance of the system.

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Abstract

本申请提供了一种SRS的发送处理方法及装置和发送方法、装置及系统。该发送处理方法包括：向用户设备UE发送SRS的配置信息，其中，配置信息携带有以下信息至少之一：用于指示UE在分量载波或分量载波组上发送SRS的指示信息；SRS在分量载波或分量载波组上的功率配置信息。通过本申请，解决了相关技术中UE无法实现在不发送数据业务的分量载波上发送SRS的问题。

Description

SRS的发送处理方法及装置和发送方法、装置及系统 技术领域
本申请涉及通信领域，具体而言，涉及一种SRS的发送处理方法及装置和发送方法、装置及系统。
背景技术
长期演进(Long Term Evolution，简称为LTE)系统中的无线帧(radio frame)包括频分双工(Frequency Division Duplex，简称为FDD)模式和时分双工(Time Division Duplex，简称为TDD)模式的帧结构。FDD模式的帧结构，如图1所示，一个10毫秒(ms)的无线帧由二十个长度为0.5ms，编号0～19的时隙(slot)组成，时隙2i和2i+1组成长度为1ms的子帧(subframe)i。TDD模式的帧结构，如图2所示，一个10ms的无线帧由两个长为5ms的半帧(half frame)组成，一个半帧包括5个长度为1ms的子帧，子帧i定义为2个长为0.5ms的时隙2i和2i+1。
在上述两种帧结构里，对于标准循环前缀(Normal CP，Normal Cyclic Prefix)，一个时隙包含7个长度为66.7微秒(us)的符号，其中第一个符号的CP长度为5.21us，其余6个符号的CP长度为4.69us；对于扩展循环前缀(Extended CP，Extended Cyclic Prefix)，一个时隙包含6个符号，所有符号的CP长度均为16.67us。时间单位Ts定义为Ts＝1/(15000×2048)秒，支持的上下行配置见下述表1所示，对一个无线帧中的每个子帧，“D”表示专用于下行传输的子帧，“U”表示专用于上行传输的子帧，“S”表示用于DwPTS(下行导频时隙，Downlink Pilot Time Slot)，保护间隔(Guard Period，简称为GP)和UpPTS(上行导频时隙，Uplink Pilot Time Slot)这三个域的特殊子帧，DwPTS和UpPTS的长度见表2所示，它们的长度服从DwPTS,GP和UpPTS三者总长度为30720·Ts＝1ms。每个子帧i由2个时隙2i和2i+1表示，每个时隙长为Tslot＝15360·Ts＝0.5ms。
LTE TDD支持5ms和10ms的上下行切换周期。如果下行到上行转换点周期为5ms，特殊子帧会存在于两个半帧中；如果下行到上行转换点周期10ms，特殊子帧只存在于第一个半帧中。子帧0和子帧5以及DwPTS总是用于下行传输。UpPTS和紧跟于特殊子帧后的子帧专用于上行传输。
表1:UL/DL配置
Figure PCTCN2017082440-appb-000001
表2:特殊子帧配置(DwPTS/GP/UpPTS长度)
Figure PCTCN2017082440-appb-000002
在LTE中，物理下行控制信道PDCCH用于承载上、下行调度信息，以及上行功率控制信息。下行控制信息(Downlink Control Information，简称为DCI)格式(format)分为DCI format 0、1、1A、1B、1C、1D、2、2A、3、3A等，后面演进至LTE-A Release 12(LTE-A版本12)中又增加 了DCI format 2B、2C、2D以支持多种不同的应用和传输模式。基站(e-Node-B，简称为eNB)可以通过下行控制信息配置终端设备(User Equipment，简称为UE)，或者终端设备接受高层(higher layers)的配置，也称为通过高层信令来配置UE。
SRS是一种终端设备与基站间用来测量无线信道信息(Channel State Information，简称为CSI)的信号。在长期演进系统中，UE按照eNB指示的频带、频域位置、序列循环移位、周期和子帧偏置等参数，定时在发送子帧的最后一个数据符号上发送上行SRS。eNB根据接收到的SRS判断UE上行的CSI，并根据得到的CSI进行频域选择调度、闭环功率控制等操作。
在现有的LTE-A Release 10(LTE-A版本10)的研究中提出：在上行通信中，应该使用非预编码的SRS，即：天线专有的SRS，而对PUSCH的用于解调的参考信号(De Modulation Reference Signal，简称为DMRS)则进行预编码。基站通过接收非预编码的SRS，可估计出上行的原始CSI，而经过了预编码的DMRS则不能使基站估计出上行原始的CSI。此时，当UE使用多天线发送非预编码的SRS时，每个UE所需要的SRS资源都会增加，也就造成了系统内可以同时复用的UE数量下降。UE可通过高层信令(也称为通过trigger type 0触发)或下行控制信息(也称为通过trigger type 1触发)这两种触发方式发送SRS，基于高层信令触发的为周期SRS，基于下行控制信息触发的为非周期SRS。在LTE-A Release 10中增加了非周期发送SRS的方式，一定程度上改善了SRS资源的利用率，提高了资源调度的灵活性。
在LTE-A载波聚合场景下，引入了多种载波类型。LTE-A载波类型可划分为：后向兼容载波(Backwards compatible carrier)，非后向兼容载波(non-backwards compatible carrier)和扩展载波(Extension carrier)三种类型。
扩展载波有两种含义：1)作为分量载波(Component carrier，简称CC)的一部分；2)作为一个独立的分量载波。扩展载波不能独立工作，必须属于一组分量载波集里的一部分，且此集合中的分量载波中至少有一 个可以独立工作。扩展载波对于LTE UEs是不可见的。
为了设计简单及考虑到各种可能的应用场景，扩展载波极有可能配置成没有PDCCH。那么扩展载波的系统信息对应的DCI需要在其他分量载波上传输。此外，LTE-A还引入了驻留载波的概念，即UE初始接入的载波，接入成功后，还可通过高层信令给UE重新配置驻留载波，以保证负载均衡。
在LTE-A载波聚合场景下，定义了PDCCH分量载波集(PDCCH CC set)，UE需要在PDCCH CC set里进行盲检测；还定义了下行分量载波集(Downlink component carrier set，简称为DL CC set)，UE的PDSCH可以在DL CC set中任意CC上发送。在LTE-A载波聚合场景下，允许跨载波调度，即某分量载波上的PDCCH可以调度多个分量载波上的PDSCH或PUSCH。
在LTE-A网络中，有很多下行业务多于上行业务的场景，这些场景下会使得聚合的下行分量载波数量要多于上行分量载波数量。现有的UE种类中，典型的有载波聚合能力的UE一般只支持1个或者2个上行分量载波。在TDD LTE-A系统中，基于SRS发送以及信道互易的方式有利于提升下行传输性能，但在下行发送的分量载波多于上行发送的分量载波时，一些分量载波上会没有上行业务发送，包括上行SRS的发送，从而在这些分量载波上就不能利用信道互易性来提升下行传输性能，特别是下行聚合的载波数量最大达到32个的情况下，这个问题会变得尤其突出。在未来LTE-A Release 14(LTE-A版本14)研究中，UE如何在不发送数据业务的分量载波上发送SRS，以帮助基站侧能通过测量SRS以及利用信道互易性来提升下行传输的性能，是一个亟待解决的问题。
发明内容
本申请至少一个实施例提供了一种SRS的发送处理方法及装置和发送方法、装置及系统，以至少解决相关技术中UE无法实现在不发送数据业务的分量载波上发送SRS的问题。
根据本申请的一个实施例，提供了一种测量参考信号SRS的发送处理 方法，包括：向用户设备UE发送SRS的配置信息，其中，配置信息携带有以下信息至少之一：用于指示UE在分量载波或分量载波组上发送SRS的指示信息；SRS在分量载波或分量载波组上的功率配置信息。
可选地，指示信息包括：用于指示UE发送SRS所在的分量载波索引或分量载波组索引的信息。
可选地，分量载波或分量载波组包括：非用于发送物理上行共享信道PUSCH的分量载波或分量载波组；或，非用于配置PUSCH的分量载波或分量载波组。
可选地，向UE发送SRS的配置信息包括：将配置信息承载于高层信令和/或下行控制信令中向UE发送。
可选地，还包括：通过高层信令向UE发送配置信息索引，其中，配置信息索引用于指示UE配置信息在下行控制信令中的位置。
可选地，下行控制信令的格式支持在分量载波或分量载波组上发送SRS，下行控制信令中包含的信息比特用于携带至少一个UE对应的配置信息。
可选地，每个UE对应的配置信息占用信息比特中的M比特，其中，1≤M≤10，且M为整数。
可选地，M比特的下行控制信令包括2M种状态，2M种状态中包括以下状态至少之一：用于指示不触发SRS的状态；用于指示触发在第i个分量载波或第i个分量载波组上发送SRS的状态，其中，1≤i≤32，且i为整数。
可选地，M比特的下行控制信令用于指示UE发送SRS所在的分量载波的索引或分量载波组的索引。
可选地，功率配置信息包括以下至少之一：相对于上行主分量载波的SRS功率、PUSCH功率或物理上行链路控制信道PUCCH功率的偏置值；SRS的目标接收功率；SRS的发送功率控制命令。
可选地，SRS的发送功率控制命令占用1比特或者2比特。
可选地，在SRS的发送功率控制命令占用1比特的情况下，发送功率控制命令所表示的功率调整值为：-3dB或3dB；在SRS的发送功率控制命令占用2比特的情况下，发送功率控制命令所表示的功率调整值为：-3dB、0dB、3dB、或6dB。
可选地，在向UE发送SRS的配置信息之前，还包括：根据以下参数至少之一确定SRS的发送功率：UE的最大发射功率，UE支持的同时发送数据和/或SRS的分量载波数量，PUSCH的目标接收功率，SRS的发送带宽，路损补偿因子，路损；根据发送功率确定功率配置信息。
可选地，在向UE发送SRS的配置信息之前，还包括：预配置SRS的功率控制方式为开环方式。
根据本申请的另一个实施例，提供了一种SRS的发送处理方法，包括：为UE配置至少一个SRS参数集，SRS参数集包括以下参数至少之一：指示UE发送SRS的天线端口、指示UE发送SRS的带宽、指示UE发送SRS的频域位置、指示UE发送SRS的频率梳索引、SRS的循环移位、指示UE发送SRS所在的分量载波索引或分量载波组索引。
可选地，至少一个SRS参数集满足：1≤N≤32，且N为整数，其中，N表示至少一个SRS参数集的数量。
可选地，还包括：通过下行控制信令指示UE触发或者不触发SRS；在指示UE触发SRS的情况下，指示UE从至少一个SRS参数集中选择一个SRS参数集用于触发SRS。
可选地，下行控制信令的格式支持同时指示多个UE触发或者不触发SRS，每个UE对应的SRS触发指示信息占用M比特的下行控制信令，其中，1≤M≤10，且M为整数。
可选地，在通过下行控制信令指示UE触发或者不触发SRS之前，还包括：通过高层信令向UE发送SRS触发指示索引信息，其中，SRS触发指示索引信息用于指示UE其对应的SRS触发指示信息在下行控制信令中的位置。
根据本申请的另一个实施例，提供了一种SRS的发送方法，包括： UE接收基站发送的SRS的配置信息，其中，配置信息携带有以下信息至少之一：用于指示UE在分量载波或分量载波组上发送SRS的指示信息；SRS在分量载波或分量载波组上的功率配置信息；根据配置信息发送SRS。
可选地，指示信息包括：用于指示UE发送SRS所在的分量载波索引或分量载波组索引的信息。
可选地，分量载波或分量载波组包括：非用于发送物理上行共享信道PUSCH的分量载波或分量载波组；或，非用于配置PUSCH的分量载波或分量载波组。
可选地，UE接收基站发送的SRS的配置信息包括：UE接收基站通过高层信令和/或下行控制信令发送的配置信息。
可选地，还包括：UE接收基站通过高层信令发送的配置信息索引，其中，配置信息索引用于指示UE配置信息在下行控制信令中的位置。
可选地，下行控制信令的格式支持在分量载波或分量载波组上发送SRS，下行控制信令中包含的信息比特用于携带至少一个UE对应的配置信息。
可选地，每个UE对应的配置信息占用信息比特中的M比特，其中，1≤M≤10，且M为整数。
可选地，M比特的下行控制信令包括2M种状态，2M种状态中包括以下状态至少之一：用于指示不触发SRS的状态；用于指示触发在第i个分量载波或第i个分量载波组上发送SRS的状态，其中，1≤i≤32，且i为整数。
可选地，M比特的下行控制信令用于指示UE发送SRS所在的分量载波的索引或分量载波组的索引。
可选地，功率配置信息包括以下至少之一：相对于上行主分量载波的SRS功率、PUSCH功率或物理上行链路控制信道PUCCH功率的偏置值；SRS的目标接收功率；SRS的发送功率控制命令。
可选地，SRS的发送功率控制命令占用1比特或者2比特。
可选地，在SRS的发送功率控制命令占用1比特的情况下，发送功率控制命令所表示的功率调整值为：-3dB或3dB；在SRS的发送功率控制命令占用2比特的情况下，发送功率控制命令所表示的功率调整值为：-3dB、0dB、3dB、或6dB。
可选地，在UE接收基站发送的SRS的配置信息之前，还包括：基站根据以下参数至少之一确定SRS的发送功率：UE的最大发射功率，UE支持的同时发送数据和/或SRS的分量载波数量，PUSCH的目标接收功率，SRS的发送带宽，路损补偿因子，路损；基站根据发送功率确定功率配置信息。
可选地，在UE接收基站发送的SRS的配置信息之前，还包括：UE预配置SRS的功率控制方式为开环方式。
根据本申请的另一个实施例，提供了一种SRS的发送方法，包括：UE接收基站配置的至少一个SRS参数集，SRS参数集包括以下参数至少之一：指示UE发送SRS的天线端口、指示UE发送SRS的带宽、指示UE发送SRS的频域位置、指示UE发送SRS的频率梳索引、循环移位、指示UE发送SRS所在的分量载波索引或分量载波组索引；根据至少一个SRS参数集发送SRS。
可选地，至少一个SRS参数集满足：1≤N≤32，且N为整数，其中，N表示至少一个SRS参数集的数量。
可选地，还包括：UE接收基站发送的下行控制信令指示，其中，下行控制信令用于指示UE触发或者不触发SRS，以及在指示UE触发SRS的情况下，指示UE从至少一个SRS参数集中选择一个SRS参数集用于触发SRS。
可选地，下行控制信令的格式支持同时指示多个UE触发或者不触发SRS，每个UE对应的SRS触发指示信息占用M比特的下行控制信令，其中，1≤M≤10，且M为整数。
可选地，还包括：UE接收基站通过高层信令发送的SRS触发指示索引信息，其中，SRS触发指示索引信息用于指示UE其对应的SRS触发指 示信息在下行控制信令中的位置。
根据本申请的另一个实施例，提供了一种SRS的发送处理装置，包括：第一发送模块，设置为向UE发送SRS的配置信息，其中，配置信息携带有以下信息至少之一：用于指示UE在分量载波或分量载波组上发送SRS的指示信息；SRS在分量载波或分量载波组上的功率配置信息。
根据本申请的另一个实施例，提供了一种SRS的发送处理装置，包括：配置模块，设置为为UE配置至少一个SRS参数集，SRS参数集包括以下参数至少之一：指示UE发送SRS的天线端口、指示UE发送SRS的带宽、指示UE发送SRS的频域位置、指示UE发送SRS的频率梳索引、循环移位、指示UE发送SRS所在的分量载波索引或分量载波组索引。
根据本申请的另一个实施例，提供了一种SRS的发送装置，包括：第一接收模块，设置为接收基站发送的SRS的配置信息，其中，配置信息携带有以下信息至少之一：用于指示UE在分量载波或分量载波组上发送SRS的指示信息；SRS在分量载波或分量载波组上的功率配置信息；第二发送模块，设置为根据配置信息发送SRS。
根据本申请的另一个实施例，提供了一种SRS的发送装置，包括：第二接收模块，设置为接收基站配置的至少一个SRS参数集，SRS参数集包括以下参数至少之一：指示UE发送SRS的天线端口、指示UE发送SRS的带宽、指示UE发送SRS的频域位置、指示UE发送SRS的频率梳索引、循环移位、指示UE发送SRS所在的分量载波索引或分量载波组索引；第三发送模块，设置为根据至少一个SRS参数集发送SRS。
根据本申请的另一个实施例，提供了一种基站，设置为向UE发送SRS的配置信息，其中，配置信息携带有以下信息至少之一：用于指示UE在分量载波或分量载波组上发送SRS的指示信息；SRS在分量载波或分量载波组上的功率配置信息。
根据本申请的另一个实施例，提供了一种基站，设置为为UE配置至少一个SRS参数集，SRS参数集包括以下参数至少之一：指示UE发送SRS的天线端口、指示UE发送SRS的带宽、指示UE发送SRS的频域位 置、指示UE发送SRS的频率梳索引、循环移位、指示UE发送SRS所在的分量载波索引或分量载波组索引。
根据本申请的另一个实施例，提供了一种UE，设置为接收基站发送的SRS的配置信息，其中，配置信息携带有以下信息至少之一：用于指示UE在分量载波或分量载波组上发送SRS的指示信息；SRS在分量载波或分量载波组上的功率配置信息；以及根据配置信息发送SRS。
根据本申请的另一个实施例，提供了一种UE，设置为接收基站配置的至少一个SRS参数集，SRS参数集包括以下参数至少之一：指示UE发送SRS的天线端口、指示UE发送SRS的带宽、指示UE发送SRS的频域位置、指示UE发送SRS的频率梳索引、循环移位、指示UE发送SRS所在的分量载波索引或分量载波组索引；以及根据至少一个SRS参数集发送SRS。
根据本申请的另一个实施例，提供了一种SRS的发送系统，包括：基站，设置为向UE发送SRS的配置信息，其中，配置信息携带有以下信息至少之一：用于指示UE在分量载波或分量载波组上发送SRS的指示信息、SRS在分量载波或分量载波组上的功率配置信息；UE，设置为接收配置信息，并根据配置信息发送SRS。
根据本申请的另一个实施例，提供了一种SRS的发送系统，包括：基站，设置为为UE配置至少一个SRS参数集，SRS参数集包括以下参数至少之一：指示UE发送SRS的天线端口、指示UE发送SRS的带宽、指示UE发送SRS的频域位置、指示UE发送SRS的频率梳索引、循环移位、指示UE发送SRS所在的分量载波索引或分量载波组索引；UE，设置为接收至少一个SRS参数集，并根据至少一个SRS参数集发送SRS。
根据本申请的又一个实施例，还提供了一种存储介质。该存储介质设置为存储用于执行以下步骤的程序代码：向UE发送SRS的配置信息，其中，配置信息携带有以下信息至少之一：用于指示UE在分量载波或分量载波组上发送SRS的指示信息；SRS在分量载波或分量载波组上的功率配置信息。
根据本申请的又一个实施例，还提供了一种存储介质。该存储介质设置为存储用于执行以下步骤的程序代码：为UE配置至少一个SRS参数集，SRS参数集包括以下参数至少之一：指示UE发送SRS的天线端口、指示UE发送SRS的带宽、指示UE发送SRS的频域位置、指示UE发送SRS的频率梳索引、循环移位、指示UE发送SRS所在的分量载波索引或分量载波组索引。
根据本申请的又一个实施例，还提供了一种存储介质。该存储介质设置为存储用于执行以下步骤的程序代码：接收基站发送的SRS的配置信息，其中，配置信息携带有以下信息至少之一：用于指示UE在分量载波或分量载波组上发送SRS的指示信息；SRS在分量载波或分量载波组上的功率配置信息；根据配置信息发送SRS。
根据本申请的又一个实施例，还提供了一种存储介质。该存储介质设置为存储用于执行以下步骤的程序代码：接收基站配置的至少一个SRS参数集，SRS参数集包括以下参数至少之一：指示UE发送SRS的天线端口、指示UE发送SRS的带宽、指示UE发送SRS的频域位置、指示UE发送SRS的频率梳索引、循环移位、指示UE发送SRS所在的分量载波索引或分量载波组索引；根据至少一个SRS参数集发送SRS。
本申请至少一个实施例通过向UE发送SRS的配置信息，以指示UE在分量载波或分量载波组上发送SRS，或者指示SRS在分量载波或分量载波组上的功率配置信息，实现了UE可在不发送数据业务的分量载波上发送SRS，从而可以帮助基站侧通过测量SRS以及利用信道互易性来提升下行传输的性能，进而达到了提高系统整体性能的效果。
附图说明
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1是相关技术中FDD模式的帧结构示意图；
图2是相关技术中TDD模式的帧结构示意图；
图3是根据本申请其中一实施例的SRS的发送处理方法的流程图；
图4是根据本申请其中一实施例的SRS的发送处理装置的结构框图；
图5是根据本申请其中一实施例的SRS的发送方法的流程图；
图6是根据本申请其中一实施例的SRS的发送装置的结构框图；
图7是根据本申请其中一实施例的SRS的发送系统的示意图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本申请。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
在本实施例中提供了一种SRS的发送处理方法，图3是根据本申请其中一实施例的SRS的发送处理方法的流程图，如图3所示，该流程包括如下步骤：
步骤S302，向用户设备UE发送SRS的配置信息，其中，该配置信息携带有以下信息至少之一：用于指示UE在分量载波或分量载波组上发送SRS的指示信息；SRS在分量载波或分量载波组上的功率配置信息。
在该步骤中，SRS的配置信息用于指示UE在分量载波或者分量载波组上发送SRS，或者与在分量载波或者分量载波组上发送SRS相关的功率配置等。
可选地，用于指示UE在分量载波或分量载波组上发送SRS的指示信息可以用于：指示UE在特定的分量载波或分量载波组上发送SRS。例如，可以将分量载波或分量载波组的索引通过高层信令或者下行控制信令发送至UE，UE按照指示在，在该索引对应的分量载波或分量载波组上发送SRS。但是，该实施例也不仅限于此。例如，指示UE在分量载波或分量载波组上发送SRS，UE根据该指示确定分量载波或分量载波组，比如可以在预先约定好的分量载波或分量载波组中选择一分量载波或分量载波 组，在该分量载波或分量载波组上发送SRS。
可选地，上述指示信息包括：用于指示UE发送SRS所在的分量载波索引或分量载波组索引的信息。
可选地，上述功率配置信息包括以下至少之一：相对于上行主分量载波的SRS功率、PUSCH功率或物理上行链路控制信道PUCCH功率的偏置值；SRS的目标接收功率；SRS的发送功率控制命令。
可选地，上述步骤的执行主体可以为基站等，但不限于此。
本申请的至少一个实施例通过向UE发送SRS的配置信息，以指示UE在分量载波或分量载波组上发送SRS，或者指示SRS在分量载波或分量载波组上的功率配置信息，实现了UE可在不发送数据业务的分量载波上发送SRS，从而可以帮助基站侧通过测量SRS以及利用信道互易性来提升下行传输的性能，进而达到了提高系统整体性能的效果。
可选地，上述的分量载波或分量载波组包括：非用于发送物理上行共享信道PUSCH的分量载波或分量载波组；或，非用于配置PUSCH的分量载波或分量载波组。该实施例支持UE在不发送或者不配置PUSCH的分量载波或分量载波组上发送SRS。
可选地，向UE发送SRS的配置信息包括：将配置信息承载于高层信令和/或下行控制信令中向UE发送。在该实施例中，高层信令或者下行控制信令中可以同时携带多个UE的SRS的配置信息，各个UE在接收到该高层信令或者下行控制信令时，可以从中解析中各自对应的SRS的配置信息，进而根据对应的SRS的配置信息进行SRS的发送。
可选地，该方法还包括：通过高层信令向UE发送配置信息索引，其中，配置信息索引用于指示UE配置信息在下行控制信令中的位置。
在该实施例中，通过下行控制信令向UE发送SRS的配置信息，其中，下行控制信中包含多个UE的配置信息，则每个UE在接收到下行控制信令时，需要判断适用于自身的配置信息。通过高层信令向UE发送配置信息索引，也即通知UE适用于自身的SRS的配置信息在下行控制信令中的位置，则UE可以直接识别出对应于自身的SRS的配置信息。上述的高层 信令可设置发送给下行控制信令中涉及到的各个UE，或者发送给预设发送列表中的各个UE，等等，本申请对此不作具体的限定。
另外，上述实施例中，发送下行控制信令和发送高层信令的顺序可以互换，或者可以将二者携带于同一信令中发送，本申请对此不作具体的限定。
可选地，下行控制信令的格式支持在分量载波或分量载波组上发送SRS，下行控制信令中包含的信息比特用于携带至少一个UE对应的配置信息。
在该实施例中，下行控制信令的格式为在各分量载波或载波组发送SRS的下行控制信令格式，其信息比特由多个UE的SRS的配置信息组成。
可选地，每个UE对应的配置信息占用信息比特中的M比特，其中，1≤M≤10，且M为整数。
可选地，M比特的下行控制信令包括2M种状态，2M种状态中包括以下状态至少之一：用于指示不触发SRS的状态；用于指示触发在第i个分量载波或第i个分量载波组上发送SRS的状态，其中，1≤i≤32，且i为整数。
在该实施例中，下行控制信令可以包含SRS的触发位和SRS的配置信息的指示位，二者结合指示UE在哪个分量载波或者载波组发送SRS。例如，使用format 2C中的SRS请求位决定是否触发SRS，使用fomat 6中UE对应的SRS发送命令来决定触发SRS发送的分量载波索引。
可选地，M比特的下行控制信令用于指示UE发送SRS所在的分量载波的索引或分量载波组的索引。
可选地，功率配置信息包括以下至少之一：相对于上行主分量载波的SRS功率、PUSCH功率或物理上行链路控制信道PUCCH功率的偏置值；SRS的目标接收功率；SRS的发送功率控制命令。
可选地，SRS的发送功率控制命令占用1比特或者2比特。
可选地，在SRS的发送功率控制命令占用1比特的情况下，发送功率 控制命令所表示的功率调整值为：-3dB或3dB；在SRS的发送功率控制命令占用2比特的情况下，发送功率控制命令所表示的功率调整值为：-3dB、0dB、3dB、或6dB。
在上述实施例中，SRS的发送功率控制命令可设置为占用1比特或者2比特。1比特所表示的2种状态可包括：功率调整值为-3dB，功率调整值为3dB；2比特所表示的4种状态可包括：功率调整值为-3dB，功率调整值为0dB，功率调整值为3dB，功率调整值为6dB。
可选地，在向UE发送SRS的配置信息之前，还包括：根据以下参数至少之一确定SRS的发送功率：UE的最大发射功率，UE支持的同时发送数据和/或SRS的分量载波数量，PUSCH的目标接收功率，SRS的发送带宽，路损补偿因子，路损；根据发送功率确定功率配置信息。
可选地，在向UE发送SRS的配置信息之前，还包括：预配置SRS的功率控制方式为开环方式。例如，基站和UE可以预先约定功率控制方式，例如为开环方式。
根据本申请的另一个实施例，还提供了一种SRS的发送处理方法。该方法包括：为UE配置至少一个SRS参数集，SRS参数集包括以下参数至少之一：指示UE发送SRS的天线端口、指示UE发送SRS的带宽、指示UE发送SRS的频域位置、指示UE发送SRS的频率梳索引、循环移位、指示UE发送SRS所在的分量载波索引或分量载波组索引。
该实施例的执行主体可以是基站，但不限于此。
可选地，上述的至少一个SRS参数集可以通过高层信令发送给UE。
可选地，上述至少一个SRS参数集满足：1≤N≤32，且N为整数，其中，N表示至少一个SRS参数集的数量。
可选地，还包括：通过下行控制信令指示UE触发或者不触发SRS；在指示UE触发SRS的情况下，指示UE从至少一个SRS参数集中选择一个SRS参数集用于触发SRS。
可选地，下行控制信令的格式支持同时指示多个UE触发或者不触发 SRS，每个UE对应的SRS触发指示信息占用M比特的下行控制信令，其中，1≤M≤10，且M为整数。
其中，SRS触发指示信息即下行控制信令中用于指示多个UE触发或者不触发SRS的信息。
可选地，在通过下行控制信令指示UE触发或者不触发SRS之前，还包括：通过高层信令向UE发送SRS触发指示索引信息，其中，SRS触发指示索引信息用于指示UE其对应的SRS触发指示信息在下行控制信令中的位置。
该实施例通过为UE配置至少一个SRS参数集，通过SRS参数集指示UE在分量载波或者分量载波组上发送SRS，实现了UE可在不发送数据业务的分量载波上发送SRS，从而可以帮助基站侧通过测量SRS以及利用信道互易性来提升下行传输的性能，进而达到了提高系统整体性能的效果。
下面根据本申请的可选实施例，提供了多种可选的SRS的发送处理方法。
实施例一
在该实施例中，基站通过高层信令或下行控制信令向UE发送SRS的配置信息，其中，SRS的配置信息包括：用于指示UE在一个分量载波或一组分量载波上发送SRS的信息；其中，所述一个分量载波或一组分量载波为不发送或不配置物理上行共享信道PUSCH的分量载波。
具体地，基站通过高层信令为UE配置索引信息，该索引信息用于指示UE其对应的SRS的配置信息在下行控制信令中所处的位置。
例如，利用Rel-14或Rel-14之后的版本中新增的下行控制信令格式(此处简称为format 6)来指示UE在一个分量载波或一组分量载波上发送SRS，format 6的信息比特由多个UE的SRS发送功率控制命令所组成，每个UE的SRS发送命令占用N比特，如下所示：
SRS发送命令编号1，SRS发送命令编号2，…，SRS发送命令编号N。其中，
Figure PCTCN2017082440-appb-000003
其中，Lformat 0为format 0在加CRC校验之前的负载(payload)大小，N为1至10之间的某一整数，包括1和10。
例如，基站通过高层信令为用户设备1配置的索引信息(即上述的配置信息索引)为2，则用户设备1检测format 6的信令，取其中的M比特的SRS发送命令编号2为用户设备1的SRS配置信息。假定M为3，则M比特的SRS发送命令所表示的状态可以如下表3或表4所示：
表3SRS发送命令域的含义
SRS发送命令域的取值 描述
‘000’ 无SRS触发
‘001’ 触发SRS在分量载波0发送
‘010’ 触发SRS在分量载波1发送
‘011’ 触发SRS在分量载波2发送
‘100’ 触发SRS在分量载波3发送
‘101’ 触发SRS在分量载波4发送
‘110’ 触发SRS在分量载波5发送
‘111’ 触发SRS在分量载波6发送
表4SRS发送命令域的含义
SRS发送命令域的取值 描述
‘000’ 无SRS触发
‘001’ 触发SRS在分量载波组0发送
‘010’ 触发SRS在分量载波组1发送
‘011’ 触发SRS在分量载波组2发送
‘100’ 触发SRS在分量载波组3发送
‘101’ 触发SRS在分量载波组4发送
‘110’ 触发SRS在分量载波组5发送
‘111’ 触发SRS在分量载波组6发送
或者，SRS的配置信息还可以包括：用于指示UE发送SRS所在的分 量载波索引或者分量载波组索引的信息。
基站结合原有的下行控制信令格式中的SRS触发位和上述SRS配置信息来联合指示UE在哪个分量载波发送SRS。例如，使用format 2C中的SRS请求位决定是否触发SRS，使用fomat 6中UE对应的SRS发送命令来决定触发SRS发送的分量载波索引。假定M为3，则M比特的SRS发送命令所表示的状态可如下表5或表6所示：
表5SRS发送命令域的含义
SRS发送命令域的取值 描述
‘000’ 分量载波0
‘001’ 分量载波1
‘010’ 分量载波2
‘011’ 分量载波3
‘100’ 分量载波4
‘101’ 分量载波5
‘110’ 分量载波6
‘111’ 分量载波7
表6SRS发送命令域的含义
SRS发送命令域的取值 描述
‘000’ 分量载波组0
‘001’ 分量载波组1
‘010’ 分量载波组2
‘011’ 分量载波组3
‘100’ 分量载波组4
‘101’ 分量载波组5
‘110’ 分量载波组6
‘111’ 分量载波组7
UE接收和检测SRS的配置信息，根据配置信息向基站发送SRS。
实施例二
在该实施例中，基站通过高层信令为UE配置N个SRS参数集，其中，1≤N≤32，且N为整数，SRS参数集包含的参数包括以下至少之一： 天线端口、发送的带宽、发送的频域位置、发送的频率梳索引、循环移位、分量载波或分量载波组索引等。
除此以外，基站通过M比特的下行控制信令指示UE是否触发SRS，以及在触发SRS时从N个SRS参数集中动态选择一套参数集用于触发SRS，其中，1≤M≤10，且M为整数。假定N为7，M为3，则M比特的下行控制信令所指示的状态如表7所示。
表7SRS发送命令域的含义
SRS发送命令域的取值 描述
‘000’ 不触发非周期SRS
‘001’ 选择高层配置的第1套SRS参数集触发非周期SRS
‘010’ 选择高层配置的第2套SRS参数集触发非周期SRS
‘011’ 选择高层配置的第3套SRS参数集触发非周期SRS
‘100’ 选择高层配置的第4套SRS参数集触发非周期SRS
‘101’ 选择高层配置的第5套SRS参数集触发非周期SRS
‘110’ 选择高层配置的第6套SRS参数集触发非周期SRS
‘111’ 选择高层配置的第7套SRS参数集触发非周期SRS
如果配置的7个SRS参数集中的分量载波或分量载波组索引都不同，则可以实现动态选择在不同的分量载波或分量载波组触发SRS。
可选地，下行控制信令格式支持同时为多个UE触发SRS，每个UE占用所述M比特的下行控制信令。
另外，基站通过高层信令向UE发送索引信息(也即上述的SRS触发指示索引信息)，其中，该索引信息用于指示UE的M比特在下行控制信令中的位置。
实施例三
在该实施例中，基站通过高层信令和下行控制信令向UE发送SRS的配置信息，其中，SRS的配置信息包括：SRS在一个分量载波或一组分量载波上的功率配置信息；其中，所述一个分量载波或一组分量载波为不发送或不配置PUSCH的分量载波。
其中，功率配置信息包括：相对于上行主分量载波的SRS功率或PUSCH功率或PUCCH功率的偏置值、SRS的目标接收功率、SRS的发 送功率控制命令。
其中，SRS的发送功率控制命令占用2比特，2比特所表示的4种状态包括：功率调整值为-3dB，功率调整值为0dB，功率调整值为3dB，功率调整值为6dB。该情况下，SRS发送功率控制命令域的含义如下表8所示。
表8SRS发送功率控制命令域的含义
SRS发送功率控制命令域的取值 功率调整值(dB)
0 -3
1 0
2 3
3 6
或者，SRS的发送功率控制命令占用1比特，1比特所表示的2种状态包括：功率调整值为-3dB，功率调整值为3dB。该情况下，SRS发送功率控制命令域的含义如下表9所示。
表9SRS发送功率控制命令域的含义
SRS发送功率控制命令域的取值 功率调整值(dB)
0 -3
1 3
实施例四
在该实施例中，基站通过高层信令和下行控制信令向UE发送SRS的配置信息，其中，SRS的配置信息包括：SRS在一个分量载波或一组分量载波上的功率配置信息；其中，该分量载波或分量载波组为不发送或不配置物理上行共享信道PUSCH的分量载波。
其中，功率配置信息或者功率配置信息确定参数包括：UE的最大发射功率，UE所能支持的同时发送数据或SRS的分量载波数量，SRS或 PUSCH的目标接收功率，SRS的发送带宽，损补偿因子，路损，SRS或PUSCH的发送功率控制命令。
可选地，使用下式表示SRS在子帧i分量载波c上的发送功率：
SRS在子帧i分量载波c上的发送功率＝min{子帧i分量载波c上的最大发送功率，分量载波c上的SRS功率偏置+10log10(分量载波c上的SRS发送带宽)+分量载波c上PUSCH的目标接收功率+分量载波c上的路损补偿因子*分量载波c上的路损}。
可选地，基站和UE可以预先约定SRS的功率控制方式为开环的功率控制方式。
在上述的实施例中，通过基站设置SRS的配置信息，并向UE下发SRS的配置信息，用以指示UE在一个分量载波或一组分量载波上发送SRS，或者SRS在一个分量载波或一组分量载波上进行功率配置，实现了UE在不发送数据业务的分量载波上发送SRS，从而帮助基站侧能通过测量SRS以及利用信道互易性来提升下行传输的性能，进而达到了提高系统整体性能的效果。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。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(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，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的方法。
在本实施例中还提供了一种SRS的发送处理装置，该装置设置为实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图4是根据本申请其中一实施例的SRS的发送处理装置的结构框图，如图4所示，该装置包括：
第一发送模块42，设置为向用户设备UE发送SRS的配置信息，其中，配置信息携带有以下信息至少之一：用于指示UE在分量载波或分量载波组上发送SRS的指示信息；SRS在分量载波或分量载波组上的功率配置信息。
该实施例通过第一发送模块42向UE发送SRS的配置信息，以指示UE在分量载波或分量载波组上发送SRS，或者指示SRS在分量载波或分量载波组上的功率配置信息，实现了UE可在不发送数据业务的分量载波上发送SRS，从而可以帮助基站侧通过测量SRS以及利用信道互易性来提升下行传输的性能，进而达到了提高系统整体性能的效果。
根据本申请的另一个实施例，还提供了一种SRS的发送处理装置，包括：配置模块，设置为为UE配置至少一个SRS参数集，SRS参数集包括以下参数至少之一：指示UE发送SRS的天线端口、指示UE发送SRS的带宽、指示UE发送SRS的频域位置、指示UE发送SRS的频率梳索引、循环移位、指示UE发送SRS所在的分量载波索引或分量载波组索引。
该实施例通过配置模块为UE配置至少一个SRS参数集，以指示或者触发UE在分量载波或分量载波组上发送SRS，实现了UE可在不发送数据业务的分量载波上发送SRS，从而可以帮助基站侧通过测量SRS以及利用信道互易性来提升下行传输的性能，进而达到了提高系统整体性能的效果。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述各个模块以任意组合的形式分别位于不同的处理器中。
根据本申请的另一个实施例，还提供了一种SRS的发送方法，如图5所示，该方法包括：
步骤S502，UE接收基站发送的SRS的配置信息，其中，配置信息携带有以下信息至少之一：用于指示UE在分量载波或分量载波组上发送 SRS的指示信息；SRS在分量载波或分量载波组上的功率配置信息；
步骤S504，根据配置信息发送SRS。
该实施例通过接收基站发送的SRS的配置信息，以根据配置信息的指示在分量载波或分量载波组上发送SRS，或者对SRS在分量载波或分量载波组上的功率进行配置，保障了UE可在不发送数据业务的分量载波上发送SRS，从而可以帮助基站侧通过测量SRS以及利用信道互易性来提升下行传输的性能，进而达到了提高系统整体性能的效果。
可选地，上述指示信息包括：用于指示UE发送SRS所在的分量载波索引或分量载波组索引的信息。
可选地，分量载波或分量载波组包括：非用于发送物理上行共享信道PUSCH的分量载波或分量载波组；或，非用于配置PUSCH的分量载波或分量载波组。
可选地，UE接收基站发送的SRS的配置信息包括：UE接收基站通过高层信令和/或下行控制信令发送的配置信息。
可选地，还包括：UE接收基站通过高层信令发送的配置信息索引，其中，配置信息索引用于指示UE配置信息在下行控制信令中的位置。
可选地，下行控制信令的格式支持在分量载波或分量载波组上发送SRS，下行控制信令中包含的信息比特用于携带至少一个UE对应的配置信息。
可选地，每个UE对应的配置信息占用信息比特中的M比特，其中，1≤M≤10，且M为整数。
可选地，M比特的下行控制信令包括2M种状态，2M种状态中包括以下状态至少之一：用于指示不触发SRS的状态；用于指示触发在第i个分量载波或第i个分量载波组上发送SRS的状态，其中，1≤i≤32，且i为整数。
可选地，M比特的下行控制信令用于指示UE发送SRS所在的分量载波的索引或分量载波组的索引。
可选地，功率配置信息包括以下至少之一：相对于上行主分量载波的SRS功率、PUSCH功率或物理上行链路控制信道PUCCH功率的偏置值；SRS的目标接收功率；SRS的发送功率控制命令。
可选地，SRS的发送功率控制命令占用1比特或者2比特。
可选地，在SRS的发送功率控制命令占用1比特的情况下，发送功率控制命令所表示的功率调整值为：-3dB或3dB；在SRS的发送功率控制命令占用2比特的情况下，发送功率控制命令所表示的功率调整值为：-3dB、0dB、3dB、或6dB。
可选地，在UE接收基站发送的SRS的配置信息之前，还包括：基站根据以下参数至少之一确定SRS的发送功率：UE的最大发射功率，UE支持的同时发送数据和/或SRS的分量载波数量，PUSCH的目标接收功率，SRS的发送带宽，路损补偿因子，路损；基站根据发送功率确定功率配置信息。
可选地，在UE接收基站发送的SRS的配置信息之前，还包括：UE预配置SRS的功率控制方式为开环方式。
在本实施例中还提供了一种SRS的发送装置，该装置设置为实现上述实施例及优选实施方式，已经进行过说明的不再赘述。
图6是根据本申请其中一实施例的SRS的发送装置的结构框图，如图6所示，该装置包括：
接收模块62，设置为接收基站发送的SRS的配置信息，其中，配置信息携带有以下信息至少之一：用于指示UE在分量载波或分量载波组上发送SRS的指示信息；SRS在分量载波或分量载波组上的功率配置信息；
第二发送模块64，设置为根据配置信息发送SRS。
该实施例通过接收模块62接收基站发送的SRS的配置信息，第二发送模块64根据配置信息的指示在分量载波或分量载波组上发送SRS，或者对SRS在分量载波或分量载波组上的功率进行配置，保障了UE可在不发送数据业务的分量载波上发送SRS，从而可以帮助基站侧通过测量SRS以及利用信道互易性来提升下行传输的性能，进而达到了提高系统整体性 能的效果。
根据本申请的另一个实施例，还提供了一种SRS的发送方法，该方法包括：UE接收基站配置的至少一个SRS参数集，SRS参数集包括以下参数至少之一：指示UE发送SRS的天线端口、指示UE发送SRS的带宽、指示UE发送SRS的频域位置、指示UE发送SRS的频率梳索引、循环移位、指示UE发送SRS所在的分量载波索引或分量载波组索引；根据至少一个SRS参数集发送SRS。
该实施例通过接收基站配置的至少一个SRS参数集，并根据至少一个SRS参数集发送SRS，保障了UE可在不发送数据业务的分量载波上发送SRS，从而可以帮助基站侧通过测量SRS以及利用信道互易性来提升下行传输的性能，进而达到了提高系统整体性能的效果。
可选地，至少一个SRS参数集满足：1≤N≤32，且N为整数，其中，N表示至少一个SRS参数集的数量。
可选地，还包括：UE接收基站发送的下行控制信令指示，其中，下行控制信令用于指示UE触发或者不触发SRS，以及在指示UE触发SRS的情况下，指示UE从至少一个SRS参数集中选择一个SRS参数集用于触发SRS。
可选地，下行控制信令的格式支持同时指示多个UE触发或者不触发SRS，每个UE对应的SRS触发指示信息占用M比特的下行控制信令，其中，1≤M≤10，且M为整数。
可选地，还包括：UE接收基站通过高层信令发送的SRS触发指示索引信息，其中，SRS触发指示索引信息用于指示UE其对应的SRS触发指示信息在下行控制信令中的位置。
在本本申请的其中一实施例中还提供了一种SRS的发送装置，该装置设置为实现上述实施例及优选实施方式，已经进行过说明的不再赘述。
该SRS的发送装置包括：第二接收模块，设置为接收基站配置的至少一个SRS参数集，SRS参数集包括以下参数至少之一：指示UE发送SRS的天线端口、指示UE发送SRS的带宽、指示UE发送SRS的频域位置、 指示UE发送SRS的频率梳索引、循环移位、指示UE发送SRS所在的分量载波索引或分量载波组索引；第三发送模块，设置为根据至少一个SRS参数集发送SRS。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述各个模块以任意组合的形式分别位于不同的处理器中。
根据本申请的另一个实施例，还提供了一种基站，设置为向UE发送SRS的配置信息，其中，配置信息携带有以下信息至少之一：用于指示UE在分量载波或分量载波组上发送SRS的指示信息；SRS在分量载波或分量载波组上的功率配置信息。
根据本申请的另一个实施例，还提供了一种基站，设置为为UE配置至少一个SRS参数集，SRS参数集包括以下参数至少之一：指示UE发送SRS的天线端口、指示UE发送SRS的带宽、指示UE发送SRS的频域位置、指示UE发送SRS的频率梳索引、循环移位、指示UE发送SRS所在的分量载波索引或分量载波组索引。
根据本申请的另一个实施例，还提供了一种UE，设置为接收基站发送的SRS的配置信息，其中，配置信息携带有以下信息至少之一：用于指示UE在分量载波或分量载波组上发送SRS的指示信息；SRS在分量载波或分量载波组上的功率配置信息；以及根据配置信息发送SRS。
根据本申请的另一个实施例，还提供了一种UE，设置为接收基站配置的至少一个SRS参数集，SRS参数集包括以下参数至少之一：指示UE发送SRS的天线端口、指示UE发送SRS的带宽、指示UE发送SRS的频域位置、指示UE发送SRS的频率梳索引、循环移位、指示UE发送SRS所在的分量载波索引或分量载波组索引；以及根据至少一个SRS参数集发送SRS。
根据本申请的另一个实施例，还提供了一种SRS的发送系统，如图7所示，该系统包括：
基站72，设置为向用户设备UE发送SRS的配置信息，其中，配置 信息携带有以下信息至少之一：用于指示UE在分量载波或分量载波组上发送SRS的指示信息、SRS在分量载波或分量载波组上的功率配置信息；
UE 74，设置为接收配置信息，并根据配置信息发送SRS。
根据本申请的另一个实施例，还提供了一种SRS的发送系统，包括：基站，设置为为UE配置至少一个SRS参数集，SRS参数集包括以下参数至少之一：指示UE发送SRS的天线端口、指示UE发送SRS的带宽、指示UE发送SRS的频域位置、指示UE发送SRS的频率梳索引、循环移位、指示UE发送SRS所在的分量载波索引或分量载波组索引；UE，设置为接收至少一个SRS参数集，并根据至少一个SRS参数集发送SRS。
本申请的实施例还提供了一种存储介质。可选地，在本实施例中，上述存储介质可以被设置为存储用于执行以下步骤的程序代码：
S302，向用户设备UE发送SRS的配置信息，其中，配置信息携带有以下信息至少之一：用于指示UE在分量载波或分量载波组上发送SRS的指示信息；SRS在分量载波或分量载波组上的功率配置信息。
本申请的实施例还提供了另一种存储介质。可选地，在本实施例中，上述存储介质可以被设置为存储用于执行以下步骤的程序代码：
S502，UE接收基站发送的SRS的配置信息，其中，配置信息携带有以下信息至少之一：用于指示UE在分量载波或分量载波组上发送SRS的指示信息；SRS在分量载波或分量载波组上的功率配置信息；
S504，UE根据配置信息发送SRS。
可选地，在本实施例中，上述存储介质可以包括但不限于：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
可选地，本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例，本实施例在此不再赘述。
显然，本领域的技术人员应该明白，上述的本申请的各模块或各步骤 可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本申请不限制于任何特定的硬件和软件结合。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。
工业实用性
如上所述，本申请实施例提供的一种SRS的发送处理方法及装置和发送方法、装置及系统具有以下有益效果：实现了UE可在不发送数据业务的分量载波上发送SRS，从而可以帮助基站侧通过测量SRS以及利用信道互易性来提升下行传输的性能，进而达到了提高系统整体性能的效果。

Claims (48)

  1. 一种测量参考信号SRS的发送处理方法，包括：
    向用户设备UE发送SRS的配置信息，其中，所述配置信息携带有以下信息至少之一：
    用于指示所述UE在分量载波或分量载波组上发送所述SRS的指示信息；所述SRS在分量载波或分量载波组上的功率配置信息。
  2. 根据权利要求1所述的方法，其中，所述指示信息包括：
    用于指示所述UE发送所述SRS所在的分量载波索引或分量载波组索引的信息。
  3. 根据权利要求1所述的方法，其中，所述分量载波或分量载波组包括：
    非用于发送物理上行共享信道PUSCH的分量载波或分量载波组；或，非用于配置PUSCH的分量载波或分量载波组。
  4. 根据权利要求1所述的方法，其中，向所述UE发送所述SRS的配置信息包括：
    将所述配置信息承载于高层信令和/或下行控制信令中向所述UE发送。
  5. 根据权利要求4所述的方法，其中，还包括：
    通过高层信令向所述UE发送配置信息索引，其中，所述配置信息索引用于指示所述UE所述配置信息在所述下行控制信令中的位置。
  6. 根据权利要求4所述的方法，其中，所述下行控制信令的格式支持在分量载波或分量载波组上发送SRS，所述下行控制信令中包含的信息比特用于携带至少一个UE对应的所述配置信息。
  7. 根据权利要求6所述的方法，其中，每个UE对应的所述配置信息占用所述信息比特中的M比特，其中，1≤M≤10，且M为整数。
  8. 根据权利要求7所述的方法，其中，所述M比特的下行控制信令包括2M种状态，所述2M种状态中包括以下状态至少之一：
    用于指示不触发SRS的状态；
    用于指示触发在第i个分量载波或第i个分量载波组上发送SRS的状态，其中，1≤i≤32，且i为整数。
  9. 根据权利要求7所述的方法，其中，所述M比特的下行控制信令用于指示所述UE发送所述SRS所在的分量载波的索引或分量载波组的索引。
  10. 根据权利要求1所述的方法，其中，所述功率配置信息包括以下至少之一：
    相对于上行主分量载波的SRS功率、PUSCH功率或物理上行链路控制信道PUCCH功率的偏置值；SRS的目标接收功率；SRS的发送功率控制命令。
  11. 根据权利要求10所述的方法，其中，所述SRS的发送功率控制命令占用1比特或者2比特。
  12. 根据权利要求11所述的方法，其中，
    在所述SRS的发送功率控制命令占用1比特的情况下，所述发送功率控制命令所表示的功率调整值为：-3dB或3dB；
    在所述SRS的发送功率控制命令占用2比特的情况下，所述发送功率控制命令所表示的功率调整值为：-3dB、0dB、3dB、或6dB。
  13. 根据权利要求1所述的方法，其中，在向所述UE发送所述SRS的配置信息之前，还包括：
    根据以下参数至少之一确定所述SRS的发送功率：所述UE的最大发射功率，所述UE支持的同时发送数据和/或SRS的分量载波数量，PUSCH的目标接收功率，SRS的发送带宽，路损补偿因子，路损；
    根据所述发送功率确定所述功率配置信息。
  14. 根据权利要求1所述的方法，其中，在向所述UE发送所述SRS的配置信息之前，还包括：
    预配置所述SRS的功率控制方式为开环方式。
  15. 一种SRS的发送处理方法，包括：
    为UE配置至少一个SRS参数集，所述SRS参数集包括以下参数至少之一：
    指示所述UE发送所述SRS的天线端口、指示所述UE发送所述SRS的带宽、指示所述UE发送所述SRS的频域位置、指示所述UE发送所述SRS的频率梳索引、所述SRS的循环移位、指示所述UE发送所述SRS所在的分量载波索引或分量载波组索引。
  16. 根据权利要求15所述的方法，其中，所述至少一个SRS参数集满足：
    1≤N≤32，且N为整数，其中，N表示所述至少一个SRS参数集的数量。
  17. 根据权利要求15所述的方法，其中，还包括：
    通过下行控制信令指示所述UE触发或者不触发SRS；
    在指示所述UE触发所述SRS的情况下，指示所述UE从所述至少一个SRS参数集中选择一个SRS参数集用于触发所述SRS。
  18. 根据权利要求17所述的方法，其中，所述下行控制信令的格式支持同时指示多个UE触发或者不触发SRS，每个UE对应的SRS触发指示信息占用M比特的下行控制信令，其中，1≤M≤10，且M为 整数。
  19. 根据权利要求18所述的方法，其中，在通过所述下行控制信令指示所述UE触发或者不触发所述SRS之前，还包括：
    通过高层信令向所述UE发送SRS触发指示索引信息，其中，所述SRS触发指示索引信息用于指示所述UE其对应的SRS触发指示信息在所述下行控制信令中的位置。
  20. 一种SRS的发送方法，包括：
    UE接收基站发送的SRS的配置信息，其中，所述配置信息携带有以下信息至少之一：用于指示所述UE在分量载波或分量载波组上发送所述SRS的指示信息；所述SRS在分量载波或分量载波组上的功率配置信息；
    所述UE根据所述配置信息发送所述SRS。
  21. 根据权利要求20所述的方法，其中，所述指示信息包括：
    用于指示所述UE发送所述SRS所在的分量载波索引或分量载波组索引的信息。
  22. 根据权利要求20所述的方法，其中，所述分量载波或分量载波组包括：
    非用于发送物理上行共享信道PUSCH的分量载波或分量载波组；或，非用于配置PUSCH的分量载波或分量载波组。
  23. 根据权利要求20所述的方法，其中，UE接收基站发送的SRS的配置信息包括：
    所述UE接收所述基站通过高层信令和/或下行控制信令发送的所述配置信息。
  24. 根据权利要求23所述的方法，其中，还包括：
    所述UE接收所述基站通过高层信令发送的配置信息索引，其中，所述配置信息索引用于指示所述UE所述配置信息在所述下行控制信令中的位置。
  25. 根据权利要求23所述的方法，其中，所述下行控制信令的格式支持在分量载波或分量载波组上发送SRS，所述下行控制信令中包含的信息比特用于携带至少一个UE对应的所述配置信息。
  26. 根据权利要求25所述的方法，其中，每个UE对应的所述配置信息占用所述信息比特中的M比特，其中，1≤M≤10，且M为整数。
  27. 根据权利要求26所述的方法，其中，所述M比特的下行控制信令包括2M种状态，所述2M种状态中包括以下状态至少之一：
    用于指示不触发SRS的状态；
    用于指示触发在第i个分量载波或第i个分量载波组上发送SRS的状态，其中，1≤i≤32，且i为整数。
  28. 根据权利要求26所述的方法，其中，所述M比特的下行控制信令用于指示所述UE发送所述SRS所在的分量载波的索引或分量载波组的索引。
  29. 根据权利要求20所述的方法，其中，所述功率配置信息包括以下至少之一：
    相对于上行主分量载波的SRS功率、PUSCH功率或物理上行链路控制信道PUCCH功率的偏置值；SRS的目标接收功率；SRS的发送功率控制命令。
  30. 根据权利要求29所述的方法，其中，所述SRS的发送功率控制命令占用1比特或者2比特。
  31. 根据权利要求30所述的方法，其中，
    在所述SRS的发送功率控制命令占用1比特的情况下，所述发送功率控制命令所表示的功率调整值为：-3dB或3dB；
    在所述SRS的发送功率控制命令占用2比特的情况下，所述发送功率控制命令所表示的功率调整值为：-3dB、0dB、3dB、或6dB。
  32. 根据权利要求20所述的方法，其中，在UE接收基站发送的SRS的配置信息之前，还包括：
    所述基站根据以下参数至少之一确定所述SRS的发送功率：所述UE的最大发射功率，所述UE支持的同时发送数据和/或SRS的分量载波数量，PUSCH的目标接收功率，SRS的发送带宽，路损补偿因子，路损；
    所述基站根据所述发送功率确定所述功率配置信息。
  33. 根据权利要求20所述的方法，其中，在UE接收基站发送的SRS的配置信息之前，还包括：
    所述UE预配置所述SRS的功率控制方式为开环方式。
  34. 一种SRS的发送方法，包括：
    UE接收基站配置的至少一个SRS参数集，所述SRS参数集包括以下参数至少之一：指示所述UE发送所述SRS的天线端口、指示所述UE发送所述SRS的带宽、指示所述UE发送所述SRS的频域位置、指示所述UE发送所述SRS的频率梳索引、循环移位、指示所述UE发送所述SRS所在的分量载波索引或分量载波组索引；
    所述UE根据所述至少一个SRS参数集发送所述SRS。
  35. 根据权利要求34所述的方法，其中，所述至少一个SRS参数集满足：
    1≤N≤32，且N为整数，其中，N表示所述至少一个SRS参数集 的数量。
  36. 根据权利要求34所述的方法，其中，还包括：
    所述UE接收所述基站发送的下行控制信令指示，其中，所述下行控制信令用于指示所述UE触发或者不触发SRS，以及在指示所述UE触发所述SRS的情况下，指示所述UE从所述至少一个SRS参数集中选择一个SRS参数集用于触发所述SRS。
  37. 根据权利要求36所述的方法，其中，所述下行控制信令的格式支持同时指示多个UE触发或者不触发SRS，每个UE对应的SRS触发指示信息占用M比特的下行控制信令，其中，1≤M≤10，且M为整数。
  38. 根据权利要求37所述的方法，其中，还包括：
    所述UE接收所述基站通过高层信令发送的SRS触发指示索引信息，其中，所述SRS触发指示索引信息用于指示所述UE其对应的SRS触发指示信息在所述下行控制信令中的位置。
  39. 一种SRS的发送处理装置，包括：
    第一发送模块，设置为向UE发送SRS的配置信息，其中，所述配置信息携带有以下信息至少之一：设置为指示所述UE在分量载波或分量载波组上发送所述SRS的指示信息；所述SRS在分量载波或分量载波组上的功率配置信息。
  40. 一种SRS的发送处理装置，包括：
    配置模块，设置为为UE配置至少一个SRS参数集，所述SRS参数集包括以下参数至少之一：指示所述UE发送所述SRS的天线端口、指示所述UE发送所述SRS的带宽、指示所述UE发送所述SRS的频域位置、指示所述UE发送所述SRS的频率梳索引、循环移位、指示所述UE发送所述SRS所在的分量载波索引或分量载波组索引。
  41. 一种SRS的发送装置，包括：
    第一接收模块，设置为接收基站发送的SRS的配置信息，其中，所述配置信息携带有以下信息至少之一：设置为指示UE在分量载波或分量载波组上发送所述SRS的指示信息；所述SRS在分量载波或分量载波组上的功率配置信息；
    第二发送模块，设置为根据所述配置信息发送所述SRS。
  42. 一种SRS的发送装置，包括：
    第二接收模块，设置为接收基站配置的至少一个SRS参数集，所述SRS参数集包括以下参数至少之一：指示UE发送SRS的天线端口、指示所述UE发送所述SRS的带宽、指示所述UE发送所述SRS的频域位置、指示所述UE发送所述SRS的频率梳索引、循环移位、指示所述UE发送所述SRS所在的分量载波索引或分量载波组索引；
    第三发送模块，设置为根据所述至少一个SRS参数集发送所述SRS。
  43. 一种基站，设置为向UE发送SRS的配置信息，其中，所述配置信息携带有以下信息至少之一：用于指示所述UE在分量载波或分量载波组上发送所述SRS的指示信息；所述SRS在分量载波或分量载波组上的功率配置信息。
  44. 一种基站，设置为为UE配置至少一个SRS参数集，所述SRS参数集包括以下参数至少之一：指示所述UE发送所述SRS的天线端口、指示所述UE发送所述SRS的带宽、指示所述UE发送所述SRS的频域位置、指示所述UE发送所述SRS的频率梳索引、循环移位、指示所述UE发送所述SRS所在的分量载波索引或分量载波组索引。
  45. 一种UE，设置为接收基站发送的SRS的配置信息，其中，所述配置信息携带有以下信息至少之一：用于指示所述UE在分量载 波或分量载波组上发送所述SRS的指示信息；所述SRS在分量载波或分量载波组上的功率配置信息；以及根据所述配置信息发送所述SRS。
  46. 一种UE，设置为接收基站配置的至少一个SRS参数集，所述SRS参数集包括以下参数至少之一：指示所述UE发送所述SRS的天线端口、指示所述UE发送所述SRS的带宽、指示所述UE发送所述SRS的频域位置、指示所述UE发送所述SRS的频率梳索引、循环移位、指示所述UE发送所述SRS所在的分量载波索引或分量载波组索引；以及根据所述至少一个SRS参数集发送所述SRS。
  47. 一种SRS的发送系统，包括：
    基站，设置为向UE发送SRS的配置信息，其中，所述配置信息携带有以下信息至少之一：用于指示所述UE在分量载波或分量载波组上发送所述SRS的指示信息、所述SRS在分量载波或分量载波组上的功率配置信息；
    所述UE，设置为接收所述配置信息，并根据所述配置信息发送所述SRS。
  48. 一种SRS的发送系统，包括：
    基站，设置为为UE配置至少一个SRS参数集，所述SRS参数集包括以下参数至少之一：指示所述UE发送所述SRS的天线端口、指示所述UE发送所述SRS的带宽、指示所述UE发送所述SRS的频域位置、指示所述UE发送所述SRS的频率梳索引、循环移位、指示所述UE发送所述SRS所在的分量载波索引或分量载波组索引；
    UE，设置为接收所述至少一个SRS参数集，并根据所述至少一个SRS参数集发送所述SRS。
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