WO2017012346A1 - 信道状态信息测量反馈方法、基站、终端、计算机存储介质 - Google Patents

信道状态信息测量反馈方法、基站、终端、计算机存储介质 Download PDF

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Publication number
WO2017012346A1
WO2017012346A1 PCT/CN2016/074734 CN2016074734W WO2017012346A1 WO 2017012346 A1 WO2017012346 A1 WO 2017012346A1 CN 2016074734 W CN2016074734 W CN 2016074734W WO 2017012346 A1 WO2017012346 A1 WO 2017012346A1
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Prior art keywords
reference signal
channel measurement
measurement reference
terminal
channel
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PCT/CN2016/074734
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English (en)
French (fr)
Inventor
莫林梅
赵亚军
徐汉青
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中兴通讯股份有限公司
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Publication of WO2017012346A1 publication Critical patent/WO2017012346A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters

Definitions

  • the present invention relates to a wireless communication technology, and in particular, to a channel state information (CSI) measurement feedback method for an unlicensed carrier, a base station, a terminal, and a computer storage medium.
  • CSI channel state information
  • the receiving end usually needs to perform channel measurement according to the pilot signal sent by the transmitting end, and feed back the measured channel information to the transmitting end, and the transmitting end uses a specific transmitting precoding technology according to the obtained channel information, such as CSI.
  • CSI Channel State Information Reference Signals
  • LTE Long Term Evolution
  • channel information is obtained by using Cell Specific Reference Signals (CRSs) or Channel State Information Reference Signals (CSI-RSs). Channel estimation obtained.
  • CRSs Cell Specific Reference Signals
  • CSI-RSs Channel State Information Reference Signals
  • the base station periodically sends one or more sets of CSI-RSs, and the terminal uses these CSI-RSs to perform CSI measurement, and then feeds the measured CSI to the base station.
  • the CSI reflecting the downlink physical channel status may include the following: Channel Quality Indication (CQI), Pre-coding Matrix Indicator (PMI), Precoding Type Indicator (PTI, Precoding). Type Indicator), and RI (Rank Indicator).
  • CSI feedback can be divided into periodic feedback and aperiodic feedback.
  • the terminal may be configured by using RRC (Radio Resource Control) signaling to perform periodic CSI feedback using a Physical Uplink Control Channel (PUCCH), or may be configured by uplink and downlink control information (DCI, Downlink Control Information). ) or random access
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • PUSCH Physical Uplink Shared Channel
  • the LTE system mainly works on the licensed carrier.
  • LTE-A LTE-Advanced
  • CA carrier aggregation
  • LAA licensed auxiliary access
  • the cell on the authorized carrier is a primary cell (PCell, Primary Cell), and the cell on the unlicensed carrier is a secondary cell (Scell, Secondary Cell).
  • the existing problems in the prior art are mainly: due to the unauthenticated carrier channel uncertainty, the CSI measurement reference signal cannot be subjected to strict periodic transmission, and the CSI measurement result cannot guarantee the reporting on the unlicensed carrier, that is, existing The CSI measurement and feedback mechanisms do not meet the requirements on the unlicensed carrier.
  • an embodiment of the present invention provides a CSI measurement feedback method, a base station, a terminal, and a computer storage medium.
  • the terminal determines a channel measurement reference signal according to the transmission resource configuration information of the channel measurement reference signal, and performs channel measurement on the channel measurement reference signal, receiving a channel measurement result sent by the terminal.
  • the channel measurement reference signal includes at least one of the following signals: CRS, CSI-RS;
  • the sub-frame period in which the opportunistic period channel measurement reference signal may appear occurs, and the Orthogonal Frequency Division Multiplexing (OFDM) symbols in each subframe are the same or different;
  • OFDM Orthogonal Frequency Division Multiplexing
  • a subframe in which the aperiodic channel measurement reference signal may appear is aperiodically occurring, and the OFDM symbols in each subframe are the same or different.
  • the transmission resource configuration information of the channel measurement reference signal includes at least one of the following: a subframe position information of a channel measurement reference signal, and a physical resource block pair of a channel measurement reference signal (PRB pair, a physical resource block pair) Position information, antenna port number information of the channel measurement reference signal, and resource element (RE, Element) position information of the channel measurement reference signal in the PRB pair;
  • the downlink control signaling that includes the transmission resource configuration information of the channel measurement reference signal is sent to the terminal, including:
  • Radio resource control RRC, Radio Resource Control
  • RRC Radio Resource Control
  • the downlink control signaling that includes the transmission resource configuration information of the channel measurement reference signal is sent to the terminal, including:
  • the channel measurement reference signal is transmitted to the terminal by the RE location information of the PRB pair through physical layer signaling and/or RRC signaling.
  • the method when the channel measurement reference signal is a reference channel measurement reference signal, the method further includes:
  • the channel preemption success indication and/or the channel measurement reference signal transmission is sent to the terminal through the PCell or the Scell, so that the terminal receives the channel preemption success indication and/or the channel measurement reference signal transmission enable.
  • an indication is sent to the UE through the PCell or the Scell to notify the terminal that the secondary periodic channel measurement reference signal cannot be transmitted.
  • the terminal information of the opportunistic periodic channel measurement reference signal and the aperiodic channel measurement reference signal is notified to the terminal by means of an independent notification or an implicit notification manner; wherein, the implicit notification mode is:
  • the transmitting position of the aperiodic channel measurement reference signal between the base station and the terminal is pre-arranged to be within the K subframe of the initial occupation, and K ⁇ 1.
  • the processing is performed according to one of the following manners:
  • the aperiodic channel measurement reference signal on the partial subframe is restricted: the partial subframe is not allowed to transmit the channel measurement reference signal; or only a part of the subframes larger than the predetermined length is allowed to transmit the channel measurement reference signal, and/or the channel measurement is performed.
  • the configuration of the reference signal is agreed upon.
  • the channel measurement result is sent to the base station.
  • the sending the channel measurement result to the base station includes:
  • the channel measurement result is sent to the base station by using the PUCCH period.
  • the candidate reporting resources include: the PUCCH of the serving SCell deployed on the unlicensed carrier, the PUCCH of the PCell deployed on the authorized carrier, and the PUCCH of the Scell deployed on other unlicensed carriers.
  • the unlicensed carrier of the weight carrier and the service belongs to a set of coordinated unlicensed carriers, and the unlicensed carriers in the set may cooperate with each other to perform control channel and/or data channel transmission; wherein, a specific one of the coordinated unlicensed carrier sets is specified or Multiple SCells are used for CSI feedback.
  • the candidate reporting resources include: a PUSCH of the serving SCell deployed on the unlicensed carrier; a PUSCH resource of the PCell deployed on the authorized carrier; a PUSCH resource of the Scell deployed on the other unlicensed carrier; wherein the other unlicensed carrier
  • the unlicensed carrier with the service belongs to a set of coordinated unlicensed carriers, and the unlicensed carriers in the set can cooperate with each other to perform control channel and/or data channel transmission; wherein, a specific one or more of the coordinated unlicensed carrier sets are specified SCell is used for CSI feedback.
  • a specific SCell is used for resource preemption
  • a specific LBT/CCA method is adopted. / Or parameters, improve resource preemption priority and success rate.
  • the DCI dynamically indicates which reporting mode is used. Whether there is frequency multiplexing on the carrier for implicit indication;
  • a sending unit configured to send, to the terminal, downlink control signaling that includes a transmission resource configuration information of the channel measurement reference signal, where the transmission resource configuration information of the channel measurement reference signal Information is used to determine the location of the channel measurement reference signal;
  • a receiving unit configured to: when the terminal determines a channel measurement reference signal according to the transmission resource configuration information of the channel measurement reference signal, and performs channel measurement on the channel measurement reference signal, receiving a channel measurement result sent by the terminal .
  • the channel measurement reference signal includes at least one of the following signals: CRS, CSI-RS;
  • the subframe period in which the opportunistic periodic channel measurement reference signal is located occurs, and the OFDM symbols in each subframe are the same or different;
  • the subframe in which the aperiodic channel measurement reference signal is located occurs aperiodically, and the OFDM symbols in each subframe are the same or different.
  • the transmission resource configuration information of the channel measurement reference signal includes at least one of the following: a subframe position information of a channel measurement reference signal, a PRB pair position information of a channel measurement reference signal, and an antenna port of a channel measurement reference signal. Number information, channel measurement reference signal RE position information of the PRB pair;
  • the sending unit is further configured to: when the channel measurement reference signal is a chance periodic channel measurement reference signal, send subframe position information of the channel measurement reference signal and/or PRB pair position information of the channel measurement reference signal by using RRC signaling And/or the antenna port number information of the channel measurement reference signal and/or the channel measurement reference signal in the PR position of the PRB pair to the terminal;
  • the sending unit is further configured to: when the channel measurement reference signal is a non-periodic channel measurement reference signal, send, by using physical layer configuration signaling, subframe position information of the channel measurement reference signal to the terminal; and/or through a physical layer
  • the control signaling transmits the PRB pair location information of the channel measurement reference signal to the terminal; and/or the channel measurement reference signal through physical layer signaling and/or RRC signaling
  • the antenna port number information of the number is transmitted to the terminal; and/or the RE measurement information of the channel measurement reference signal in the PRB pair is transmitted to the terminal through physical layer signaling and/or RRC signaling.
  • the base station further includes: a notification unit, configured to: when the channel measurement reference signal is a reference channel measurement reference signal, after successfully acquiring the channel, the channel preemption is successfully sent by the primary cell PCell or the secondary cell Scell
  • the indication and/or channel measurement reference signal transmission is enabled to the terminal, so that after receiving the channel preemption success indication and/or the channel measurement reference signal transmission enable, the terminal periodically receives the channel measurement reference in the preset subframe position. Signal; or,
  • an indication is sent to the UE through the PCell or the Scell to notify the terminal that the secondary periodic channel measurement reference signal cannot be transmitted.
  • the notification unit is further configured to: when the transmission of the opportunistic periodic channel measurement reference signal and the aperiodic channel measurement reference signal is simultaneously supported, the opportunity period is performed by using an independent notification manner or an implicit notification manner.
  • the location information of the channel measurement reference signal and the aperiodic channel measurement reference signal is notified to the terminal; wherein the implicit notification mode is: the base station and the terminal pre-arrange the transmission position of the aperiodic channel measurement reference signal to be within the initial K subframe. , K ⁇ 1.
  • the base station further includes:
  • a configuration unit configured to configure two channel measurement reference signal configurations for the terminal, where the first configuration corresponds to a complete subframe; the second configuration corresponds to a non-complete subframe;
  • the notification unit is further configured to notify the terminal whether the configuration information using the first configuration or the second configuration is used by the DCI in the physical control signaling; or the terminal selects the used CSI-RS configuration according to the subframe length;
  • the aperiodic channel measurement reference signal on the restricted partial subframe is sent: the part is not allowed The subframe transmits a channel measurement reference signal; or, only a partial subframe greater than a predetermined length is allowed to transmit a channel measurement reference signal, and/or a configuration of the channel measurement reference signal is agreed.
  • a receiving unit configured to receive downlink control signaling that is sent by the base station and includes transmission resource configuration information of the channel measurement reference signal, where the transmission resource configuration information of the channel measurement reference signal is used to determine a location of the channel measurement reference signal;
  • a measuring unit configured to determine a channel measurement reference signal according to transmission resource configuration information of the channel measurement reference signal, and perform channel measurement on the channel measurement reference signal;
  • a sending unit configured to send the channel measurement result to the base station.
  • the sending unit is further configured to: send the channel measurement result to the base station by using a PUCCH period; the candidate reporting resource includes: a PUCCH of the serving SCell deployed on the unlicensed carrier, and a PCell deployed on the authorized carrier.
  • the PUCCH the PUCCH of the Scell deployed on other unlicensed carriers; wherein the other unlicensed carriers and the unlicensed carriers of the service belong to a coordinated unlicensed carrier set, and the unlicensed carriers in the set can cooperate with each other to perform control channel and And/or data channel transmission; wherein, a specific one or more SCells in the coordinated unlicensed carrier set are specified for CSI feedback, and the specific SCell adopts a specific LBT/CCA method and/or parameter to improve resources when resource preempting Preempting the priority and success rate; or transmitting the channel measurement result to the base station by using the PUSCH aperiodic; the candidate reporting resource includes: a PUSCH of the serving SCell deployed on the unlicensed carrier; and a PUSCH resource of the PCell deployed on the authorized carrier; PUSCH resources of Scells deployed on other unlicensed carriers; among them, other unlicensed carriers and services
  • the unlicensed carrier belongs to a set of coordinated unlicensed carriers, and the unlicensed carriers in
  • the terminal further includes:
  • the configuration unit is configured to perform different CSI reporting configurations for the frequency reuse scenario on the unlicensed carrier: configure a smaller CSI reporting period and configure the broadband CSI and/or sub-scenario for the scenario in which the frequency reuse is performed on the unlicensed carrier.
  • configure a smaller CSI reporting period and configure the broadband CSI and/or sub-scenario for the scenario in which the frequency reuse is performed on the unlicensed carrier.
  • the two CSI reporting modes can be configured by the RRC, and the DCI dynamically indicates which reporting mode is used;
  • the CSI measurement mode can be configured to report the CSI measurement result, and the CSI measurement mode can be configured at the same time.
  • the computer storage medium provided by the embodiment of the present invention stores a computer program for executing the CSI measurement feedback method described above.
  • the base station sends the downlink control signaling that includes the transmission resource configuration information of the channel measurement reference signal to the terminal, where the transmission resource configuration information of the channel measurement reference signal is used to determine the channel measurement reference signal. s position.
  • the terminal determines the location of the channel measurement reference signal according to the transmission resource configuration information of the channel measurement reference signal, performs channel measurement, and then transmits the channel measurement result to the base station. In this way, the problem of the channel measurement reference signal transmission indication and the channel measurement result reporting is solved.
  • the CSI measurement feedback mechanism of the embodiment of the present invention satisfies the requirements on the unlicensed carrier.
  • FIG. 1 is a schematic flowchart of a CSI measurement feedback method according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic flowchart of a CSI measurement feedback method according to Embodiment 2 of the present invention.
  • FIG. 3 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a CSI measurement feedback system according to an embodiment of the present invention.
  • FIG. 1 is a schematic flowchart of a CSI measurement feedback method according to Embodiment 1 of the present invention.
  • the CSI measurement feedback method in this example is applied to a base station side, as shown in FIG. 1 .
  • the CSI measurement feedback method includes the following steps:
  • Step 101 Send downlink control signaling including transmission resource configuration information of the channel measurement reference signal to the terminal, where the transmission resource configuration information of the channel measurement reference signal is used to determine a location of the channel measurement reference signal.
  • the base station sends the location of the channel measurement reference signal to the terminal in an indicated manner. Specifically, the base station sends downlink control signaling to the terminal, where the downlink control signaling includes transmission resource configuration information of the channel measurement reference signal, and the transmission resource configuration information of the channel measurement reference signal is used to determine a location of the channel measurement reference signal.
  • the channel measurement reference signal includes at least one of the following signals: CRS, CSI-RS;
  • the subframe period in which the opportunistic period channel measurement reference signal may appear occurs, and the OFDM symbols in each subframe are the same or different;
  • Sub-frames in which the aperiodic channel measurement reference signal may appear occur in a non-period, and in each subframe
  • the OFDM symbols are the same or different.
  • the location where the channel measurement reference signal may appear includes the following situations:
  • a sub-frame period in which a channel measurement reference signal may appear for example, a channel measurement reference signal may appear on a Tth, 2T, 3T, ..., N x T subframe, where T represents a period of the channel measurement reference signal, and channel measurement
  • T represents a period of the channel measurement reference signal
  • the OFDM symbols in which the reference signal appears in each subframe may be the same or different. Since at each cycle point, only the SCell acquiring the channel can transmit the channel measurement reference signal, the SCell that failed to acquire the channel cannot transmit the channel measurement reference signal.
  • the channel measurement reference signal for this case is referred to as a chance cycle channel measurement reference signal.
  • the subframes in which the channel measurement reference signal may appear are aperiodic, and the OFDM symbols appearing in the channel measurement reference signal in each subframe are fixed.
  • the channel measurement reference signal for this case is referred to as a non-periodic channel measurement reference signal.
  • the subframe may be a subframe of 1 ms in length of LTE, or may be a subframe of other length, for example, a partial subframe with a length less than 1 ms, or a superframe with a length greater than 1 ms.
  • the transmission resource configuration information of the channel measurement reference signal includes at least one of the following: a subframe position information of a channel measurement reference signal, a PRB pair position information of a channel measurement reference signal, and an antenna port of a channel measurement reference signal.
  • the number information and the channel measurement reference signal are in the RE position information of the PRB pair.
  • the downlink control signaling that includes the transmission resource configuration information of the channel measurement reference signal is sent to the terminal, including:
  • the channel measurement reference signal is a non-periodic channel measurement reference signal
  • the downlink control signaling of the transmission resource configuration information of the channel measurement reference signal is sent to the terminal, including:
  • the channel measurement reference signal is transmitted to the terminal by the RE location information of the PRB pair through physical layer signaling and/or RRC signaling.
  • the physical layer configuration signaling, the physical layer control signaling, and the RRC signaling may be sent on the authorized carrier, or may be sent on the unlicensed carrier.
  • the LAA SCell may perform channel measurement reference signal transmission using one of the following methods:
  • Method 1 for the opportunistic periodic channel measurement reference signal, the base station sends the subframe position information, the port number information, the PRB pair position information, and the RE location information of the PRB pair to the terminal by using the RRC signaling.
  • the terminal assumes that a channel measurement reference signal may be received at a preset subframe position. Due to the LBT/CCA limitation, the base station cannot transmit the channel measurement reference signal at each periodic point, and the base station should send the notification information to the terminal through the physical layer control signaling.
  • the method of notification can be one of the following:
  • the base station After successfully acquiring the channel, the base station sends a channel preemption success indication and/or a channel measurement reference signal to the terminal through the PCell or the Scell, and notifies the terminal that the terminal base station has successfully preempted the channel and/or the channel measurement reference signal can be sent.
  • the terminal periodically receives the channel measurement reference signal after receiving the notification. Until the base station is about to be released, or has been released, or the channel measurement reference signal can no longer be sent, the base station sends a channel release indication and/or a channel measurement reference signal through the PCell or Scell to stop transmitting the indication to the terminal, and the terminal no longer assumes that it is preset.
  • Channel measurement at sub-frame position The reference signal is measured until the next time the terminal receives the channel preemption success indication and/or the channel measurement reference signal transmission is enabled, and then continues to receive the channel measurement reference signal.
  • the base station sends an indication to the terminal through the PCell or the Scell before the transmission point of each period or every period of the transmission point, and notifies the terminal that the secondary channel measurement reference signal can be sent.
  • the terminal determines, according to the received indication, that the channel measurement reference signal can be received at the current transmission cycle point. If no transmission indication is received, then no channel measurement reference signal is transmitted at the periodic point.
  • the base station sends an indication to the terminal through the PCell or the Scell before the transmission point of each period or every period of the transmission point, and notifies the terminal that the secondary channel measurement reference signal cannot be transmitted.
  • the terminal determines, according to the received indication, that the channel measurement reference signal cannot be received at the current transmission cycle point. If no indication is sent, the channel measurement reference signal is transmitted at the periodic point.
  • Method 2 For a non-periodic channel measurement reference signal, the base station sends a notification of the subframe position information to the terminal through the physical layer configuration signaling; the base station sends a notification of the PRB pair location information to the terminal through the physical layer control signaling; the base station passes the physical layer letter. And/or the radio resource control RRC signaling sends a notification of the channel measurement reference signal port number information to the terminal; the base station sends the notification of the channel measurement reference signal to the RE location information of the PRB pair through physical layer signaling and/or RRC signaling to terminal.
  • RRC signaling sends a notification of the channel measurement reference signal port number information to the terminal; the base station sends the notification of the channel measurement reference signal to the RE location information of the PRB pair through physical layer signaling and/or RRC signaling to terminal.
  • the base station side transmits the transmission resource configuration information of the channel measurement reference signal, and the terminal side may determine the transmission location of the channel measurement reference signal according to the foregoing information, for example, the subframe position information and the predetermined rule according to the physical layer configuration signaling received by the terminal.
  • a transmission location of the channel measurement reference signal is determined, wherein the channel measurement reference signal is a non-periodic channel measurement reference signal.
  • Method 3 simultaneously supporting transmission of the opportunistic periodic channel measurement reference signal and the aperiodic channel measurement reference signal.
  • the configuration methods in the above methods 1 and 2 can be used to independently configure the opportunistic periodic channel measurement reference signal and the aperiodic measurement reference signal.
  • the opportunistic periodic channel measurement is performed by means of independent notification or implicit notification.
  • the location information of the reference signal and the aperiodic channel measurement reference signal is notified to the terminal; wherein, the implicit notification mode is: the base station and the terminal pre-arrange the transmission position of the aperiodic channel measurement reference signal to be within the K subframe of the initial occupation, K ⁇ 1.
  • the base station can coordinate the transmission of the periodic channel measurement reference signal and the aperiodic channel measurement reference signal according to the following rules:
  • the base station determines, according to the opportunistic periodic channel measurement reference signal configuration, that there is no periodic channel measurement reference signal transmission in the first K subframes of the occupation period, the base station configures and transmits the aperiodic measurement reference signal at the initial stage of occupancy.
  • the terminal receives the aperiodic measurement reference signal and the opportunistic periodic channel measurement reference signal according to the configuration of the base station.
  • the base station determines, according to the opportunistic periodic channel measurement reference signal configuration, that there is a periodic channel measurement reference signal in the first K subframes of the occupation period, the base station does not configure and transmit the aperiodic measurement reference signal at the initial stage of occupancy.
  • the terminal determines, according to the opportunistic channel channel measurement reference signal configuration configured by the base station in advance, that there is a periodic channel in the first K subframes of the occupation period.
  • the terminal default base station does not transmit the aperiodic measurement reference signal.
  • the above independent notification and method implicit notification can be used in combination, that is, the implicit notification method is used at the beginning of occupation.
  • the base station can still configure and transmit the opportunistic period and aperiodic measurement reference signals by using an explicit notification method.
  • the channel measurement reference signal is transmitted on a non-complete subframe, it is processed in one of the following ways:
  • the aperiodic channel measurement reference signal on the partial subframe is restricted: the partial subframe is not allowed to transmit the channel measurement reference signal; or only a part of the subframes larger than the predetermined length is allowed to transmit the channel measurement reference signal, and/or the channel measurement is performed.
  • the configuration of the reference signal is agreed upon. Specifically, for the case where the opportunistic channel channel measurement reference signal or the aperiodic channel measurement reference signal is transmitted on the non-complete subframe, the processing may be performed in one of the following manners:
  • the base station configures two channel measurement reference signal configurations for the terminal, where the first configuration corresponds to the complete subframe; the second configuration corresponds to the non-complete subframe situation; then the terminal is notified by the DCI in the physical control signaling, and the first configuration is specifically used. Or the second configuration; or, the terminal automatically selects which CSI-RS configuration to use according to the subframe length.
  • the second configuration satisfies the following partial subframe channel measurement reference signal transmission constraint.
  • the partial subframe channel measurement reference signal transmission constraint refers to:
  • Example 1 Only a partial subframe having a length greater than half a subframe, that is, 0.5 ms, is allowed to transmit a channel measurement reference signal. At the same time, it is agreed to use only CSI to map the CSI-RS in the second half of the slot, that is, the second slot.
  • the normal cyclic prefix (Normal Cyclic Prefix) can only be configured as CSI-RS configuration except configuration 0, 5, 10, 11 between configuration 0 and configuration 31; for extended cyclic prefix (Extended) Cyclic Prefix) can only be configured as CSI-RS configuration except 0, 1, 4, 5, 8, 9, 10, 11 between configuration 0 and configuration 27.
  • Example 2 Only a partial subframe having a length greater than 4 OFDM symbols is allowed to transmit a channel measurement reference signal. At the same time, it is agreed to use only the CSI mapping in the second half of the frame, that is, the second slot, and the time domain position does not exceed the CSI-RS configuration of the fourth OFDM symbol.
  • the normal cyclic prefix (Normal Cyclic Prefix) can only be configured between C0-RS except configuration 0, 4, 5, 9, 10, 11, 18, 19 between configuration 0 and configuration 31.
  • Configuration For extended Cyclic Prefix, it can only be configured as CSI-RS configuration of frame structure 2, and configurations 16 to 27.
  • Step 102 When the terminal determines a channel measurement reference signal according to the transmission resource configuration information of the channel measurement reference signal, and performs channel measurement on the channel measurement reference signal, receiving a channel measurement result sent by the terminal.
  • the channel preemption success indication and/or the channel measurement reference signal transmission enable is enabled by the primary cell PCell or the secondary cell Scell.
  • the terminal After the terminal receives the channel preemption success indication and/or the channel measurement reference signal transmission enable, periodically receiving the channel measurement reference signal at the preset subframe position; or, before each period of the transmission point Or sending a command to the terminal through the PCell or the Scell at each periodic transmission point, so that the terminal is in the preset sub-
  • the frame position is used to receive the sub-period channel measurement reference signal; or, before each periodic transmission point or at each periodic transmission point, an indication is sent to the terminal through the PCell or the Scell to notify the terminal of the sub-period channel measurement reference. The signal could not be sent.
  • FIG. 2 is a schematic flowchart of a CSI measurement feedback method according to Embodiment 2 of the present invention.
  • the CSI measurement feedback method in this example is applied to a terminal side.
  • the CSI measurement feedback method includes the following steps:
  • Step 201 Receive downlink control signaling that is sent by the base station and includes transmission resource configuration information of the channel measurement reference signal, where the transmission resource configuration information of the channel measurement reference signal is used to determine a location of the channel measurement reference signal.
  • Step 202 Determine a channel measurement reference signal according to transmission resource configuration information of the channel measurement reference signal, and perform channel measurement on the channel measurement reference signal.
  • Step 203 Send the channel measurement result to the base station.
  • the terminal sends the channel measurement result to the base station by using the PUCCH period
  • the candidate reporting resource includes: a PUCCH of the serving SCell deployed on the unlicensed carrier, a PUCCH of the PCell deployed on the authorized carrier, and deployment in other non- Authorizing the PUCCH of the Scell on the carrier; wherein the other unlicensed carrier and the unlicensed carrier of the service belong to a coordinated unlicensed carrier set, and the unlicensed carriers in the set may cooperate with each other to perform control channel and/or data channel transmission; Specifying one or more SCells in the coordinated unlicensed carrier set for CSI feedback, and the specific SCell adopts a specific LBT/CCA method and/or parameter in resource preemption to improve resource preemption priority and success rate; Or, the channel measurement result is sent to the base station by using the PUSCH aperiod.
  • the candidate reporting resources include: a PUSCH of the serving SCell deployed on the unlicensed carrier; a PUSCH resource of the PCell deployed on the authorized carrier; and being deployed on other unlicensed carriers.
  • a specific one or more SCells in the coordinated unlicensed carrier set are specified for CSI feedback, for example, SCell using the best channel condition (RSRP, CQI, SINR, etc.), or SCell with the smallest/largest cell number
  • these specific SCells use specific LBT/CCA methods and/or parameters to improve resource preemption priority and success rate when resource preemption, for example, only initial CCA operation, no ECCA operation, and / or use a smaller competition window, etc.
  • the PUCCH of the PCell deployed on the authorized carrier is scheduled to be scheduled for periodic CSI reporting;
  • the PUCCH of the Scell deployed on the other unlicensed carrier is scheduled to be scheduled for periodic CSI reporting.
  • the unlicensed carrier of the other unlicensed carrier and the service belong to a coordinated unlicensed carrier set, and the unlicensed carriers in the set may cooperate with each other to perform control channel and/or data channel transmission.
  • the PUCCH of the serving PCell deployed on the authorized carrier is preferentially used for periodic reporting;
  • the PUCCH resource of the serving PCell deployed on the authorized carrier is tight, and the PUCCH resource cannot be allocated for the unlicensed carrier CSI, the PUCCH of the serving Scell deployed on the unlicensed carrier is scheduled to be scheduled for periodic CSI reporting;
  • the PUCCH of the other SCells deployed on the unlicensed carrier may be scheduled to perform periodic CSI reporting;
  • the unlicensed carrier of the other unlicensed carrier and the service belong to a coordinated unlicensed carrier set, and the unlicensed carriers in the set may cooperate with each other to perform control channel and/or data channel transmission.
  • the aperiodic CSI reporting may be performed by using the PUSCH resource of the PCell deployed on the authorized carrier.
  • the PUSCH resource of the Scell deployed on the other unlicensed carrier is scheduled to be scheduled for aperiodic CSI reporting;
  • the unlicensed carriers of the other unlicensed carriers and services belong to a set of coordinated unlicensed carriers, and the unlicensed carriers in the set may cooperate with each other to perform control channel and/or data channel transmission.
  • the unlicensed carrier of the other unlicensed carrier and the service belong to a coordinated unlicensed carrier set, and the unlicensed carriers in the set may cooperate with each other to perform control channel and/or data channel transmission.
  • the candidate reporting resources include: PUSCH of the serving SCell deployed on the unlicensed carrier; PUSCH resources of the PCell deployed on the authorized carrier; PUSCH resources of the Scell deployed on other unlicensed carriers; among other unlicensed carriers and services
  • the unlicensed carrier belongs to a set of coordinated unlicensed carriers, and the unlicensed carriers in the set can cooperate with each other to perform control channel and/or data channel transmission.
  • a specific one or more SCells in the coordinated unlicensed carrier set are specified for CSI feedback, and the specific SCell adopts a specific LBT/CCA method and/or parameter in resource preemption to improve resource preemption priority and success.
  • the rate for example, may be only an initial CCA operation, no ECCA operation, and/or use a smaller contention window or the like.
  • the LTE system can configure multiple types of unlicensed carrier channel state information (CSI):
  • the SCells deployed on the same unlicensed carrier may occupy the channel at the same time.
  • the interference status is similar to the authorized carrier.
  • the interference during the occupation period also changes frequently.
  • the frequency selection feature is presented on the domain.
  • a smaller CSI reporting period can be configured on the unlicensed carrier, and a wideband CSI and/or a sub-band CSI may be configured, where the CSI may include CQI, PMI, and RI.
  • the service SCell deployed on the unlicensed carrier will monopolize the channel.
  • the interference in the system is mainly thermal noise, which is basically stable in several occupations and stable in the frequency domain.
  • the unlicensed carrier can be configured with a large CSI reporting period, and only the wideband CSI can be configured.
  • the CSI may include CQI, PMI, and RI.
  • the CSI of multiple unlicensed carriers is approximate.
  • the CSI of an unlicensed carrier when the CSI of an unlicensed carrier is not available, the CSI of the other carrier can be used as the approximate CSI.
  • the partial content of the possible CSI may be approximated, for example, only CQI may be approximated, or CQI and/or RI may be approximated; or all contents of the CSI may be approximated, for example, CQI, PMI, and RI may be approximated;
  • CSI is configured according to mode 1 when there is no frequency to take a cell; CSI is configured according to mode 2 when a cell is taken at a frequency.
  • the two CSI reporting modes may be configured by the RRC, and the DCI dynamically indicates which reporting mode is used; or may be implicitly indicated by whether there is frequency multiplexing on the unlicensed carrier.
  • FIG. 3 is a schematic structural diagram of a base station according to an embodiment of the present invention. As shown in FIG. 3, a base station according to an embodiment of the present invention includes:
  • the sending unit 31 is configured to send downlink control signaling that includes the transmission resource configuration information of the channel measurement reference signal to the terminal, where the transmission resource configuration information of the channel measurement reference signal is used to determine a location of the channel measurement reference signal;
  • the receiving unit 32 is configured to: when the terminal determines a channel measurement reference signal according to the transmission resource configuration information of the channel measurement reference signal, and performs channel measurement on the channel measurement reference signal, receiving a channel measurement sent by the terminal result.
  • the channel measurement reference signal includes at least one of the following signals: CRS, CSI-RS;
  • the subframe period in which the opportunistic periodic channel measurement reference signal is located occurs, and the OFDM symbols in each subframe are the same or different;
  • the subframe in which the aperiodic channel measurement reference signal is located occurs aperiodically, and the OFDM symbols in each subframe are the same or different.
  • the transmission resource configuration information of the channel measurement reference signal includes at least one of the following: a subframe position information of a channel measurement reference signal, a PRB pair position information of a channel measurement reference signal, and an antenna port of a channel measurement reference signal. Number information, channel measurement reference signal RE location information in the PRB pair;
  • the sending unit 31 is further configured to: when the channel measurement reference signal is a chance periodic channel measurement reference signal, send the subframe position information of the channel measurement reference signal and/or the PRB pair position of the channel measurement reference signal by using RRC signaling.
  • the sending unit 31 is further configured to: when the channel measurement reference signal is a non-periodic channel measurement reference signal, send subframe position information of the channel measurement reference signal to the terminal by using physical layer configuration signaling; and/or Layer control signaling transmitting PRB pair location information of the channel measurement reference signal to the terminal; and/or transmitting antenna port number information of the channel measurement reference signal to the terminal through physical layer signaling and/or RRC signaling; and/or The physical layer signaling and/or RRC signaling transmits the channel measurement reference signal to the terminal at the RE location information of the PRB pair.
  • the base station further includes: a notification unit 33, configured to: when the channel measurement reference signal is a reference channel measurement reference signal, after successfully acquiring the channel, sending a channel preemption through the primary cell PCell or the secondary cell Scell
  • the success indication and/or channel measurement reference signal transmission is enabled to the terminal, so that the terminal periodically receives the channel measurement at the preset subframe position after receiving the channel preemption success indication and/or the channel measurement reference signal transmission enable.
  • Reference signal or,
  • an indication is sent to the UE through the PCell or the Scell to notify the terminal that the secondary periodic channel measurement reference signal cannot be transmitted.
  • the notification unit 33 is further configured to: when the transmission of the opportunistic periodic channel measurement reference signal and the aperiodic channel measurement reference signal is simultaneously supported, the reference periodic channel measurement reference signal and the implicit notification manner are used The location information of the aperiodic channel measurement reference signal is notified to the terminal; wherein the implicit notification mode is: a pre-arranged non-period between the base station and the terminal The transmission position of the channel measurement reference signal is within the K subframe of the initial occupation, and K ⁇ 1.
  • the base station further includes:
  • the configuration unit 34 is configured to configure two channel measurement reference signal configurations for the terminal, where the first configuration corresponds to a complete subframe; the second configuration corresponds to a non-complete subframe;
  • the notification unit 33 is further configured to notify the terminal whether the configuration information using the first configuration or the second configuration is used by the DCI in the physical control signaling; or the terminal selects the used CSI-RS configuration according to the subframe length;
  • the aperiodic channel measurement reference signal on the partial subframe is restricted: the partial subframe is not allowed to transmit the channel measurement reference signal; or only a part of the subframes larger than the predetermined length is allowed to transmit the channel measurement reference signal, and/or the channel measurement is performed.
  • the configuration of the reference signal is agreed upon.
  • the implementation functions of the units in the base station shown in FIG. 3 can be understood by referring to the related description of the foregoing CSI measurement feedback method.
  • the functions of the units in the base station shown in FIG. 3 can be implemented by a program running on the processor, or can be realized by a specific logic circuit.
  • each unit in the base station may be processed by a central processing unit (CPU), a microprocessor (Micro Processor Unit, MPU), or a digital signal located in a base station. (Digital Signal Processor, DSP), or Field Programmable Gate Array (FPGA) implementation.
  • CPU central processing unit
  • MPU Micro Processor Unit
  • DSP Digital Signal Processor
  • FPGA Field Programmable Gate Array
  • FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention. As shown in FIG. 4, the terminal in the embodiment of the present invention includes:
  • the receiving unit 41 is configured to receive, by the base station, downlink control signaling that includes transmission resource configuration information of the channel measurement reference signal, where the transmission resource configuration information of the channel measurement reference signal is used to determine a location of the channel measurement reference signal;
  • the measuring unit 42 is configured to determine a channel measurement reference signal according to the transmission resource configuration information of the channel measurement reference signal, and perform channel measurement on the channel measurement reference signal;
  • the sending unit 43 is configured to send the channel measurement result to the base station.
  • the sending unit 43 is further configured to send the channel measurement result to the base station by using a PUCCH period;
  • the candidate reporting resource includes: a PUCCH of the serving SCell deployed on the unlicensed carrier, deployed on the authorized carrier The PUCCH of the PCell and the PUCCH of the Scell deployed on the other unlicensed carriers; wherein the unlicensed carriers of the other unlicensed carriers and the served unlicensed carriers belong to a coordinated unlicensed carrier set, and the unlicensed carriers in the set can cooperate with each other to perform the control channel.
  • a specific one or more SCells in the coordinated unlicensed carrier set are specified for CSI feedback, and the specific SCell adopts a specific LBT/CCA method and/or parameter in resource preemption to improve Resource preemption priority and success rate; or, the PUSCH aperiodic is used to transmit the channel measurement result to the base station;
  • the candidate reporting resources include: the PUSCH of the serving SCell deployed on the unlicensed carrier; and the PUSCH resource of the PCell deployed on the authorized carrier ; PUSCH resources of Scells deployed on other unlicensed carriers; among them, other unlicensed carriers and services
  • the unlicensed carrier belongs to a set of coordinated unlicensed carriers, and the unlicensed carriers in the set can cooperate with each other to perform control channel and/or data channel transmission; wherein, the specific one or more SCells in the set of cooperative unlicensed carriers are specified.
  • a specific SCell adopts a specific LBT/CCA method and/or parameter in resource preemption to improve
  • the terminal further includes:
  • the configuration unit 44 is configured to perform different CSI reporting configurations for the frequency reuse scenario on the unlicensed carrier. For the scenario where the frequency reuse is performed on the unlicensed carrier, configure a smaller CSI reporting period, configure the broadband CSI and/or Sub-band CSI; for scenarios where there is no frequency reuse on the unlicensed carrier, a larger CSI reporting period is configured, and only the wideband CSI is configured; the two CSI reporting modes can be configured by the RRC, and the DCI dynamically indicates which reporting mode is used; The CSI measurement mode can be configured to report the CSI measurement result. The CSI measurement mode can be configured at the same time. Whether there is one or two of frequency reuse reporting.
  • the base station sends the downlink control signaling that includes the transmission resource configuration information of the channel measurement reference signal to the terminal, where the transmission resource configuration information of the channel measurement reference signal is used to determine the channel measurement reference signal. s position.
  • the terminal determines the location of the channel measurement reference signal according to the transmission resource configuration information of the channel measurement reference signal, performs channel measurement, and then transmits the channel measurement result to the base station.
  • the channel measurement reference signal is implemented to perform strict periodic transmission and the channel measurement result is reported on the unlicensed carrier.
  • the CSI measurement feedback mechanism of the embodiment of the present invention satisfies the requirements on the unlicensed carrier.
  • the implementation functions of the units in the terminal shown in FIG. 4 can be understood by referring to the related description of the foregoing CSI measurement feedback method.
  • the functions of the units in the terminal shown in FIG. 4 can be implemented by a program running on the processor, or can be realized by a specific logic circuit.
  • each unit in the terminal may be processed by a central processing unit (CPU), a microprocessor (Micro Processor Unit, MPU), or a digital signal located in the terminal. (Digital Signal Processor, DSP), or Field Programmable Gate Array (FPGA) implementation.
  • CPU central processing unit
  • MPU Micro Processor Unit
  • DSP Digital Signal Processor
  • FPGA Field Programmable Gate Array
  • the apparatus for tracking the service signaling may also be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a separate product.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • program codes such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • an embodiment of the present invention further provides a computer storage medium, wherein a computer program is stored, and the computer program is used to execute the CSI measurement feedback method of the embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a CSI measurement feedback system according to an embodiment of the present invention. As shown in FIG. 5, the system includes:
  • the base station 51 is configured to send downlink control signaling including transmission resource configuration information of the channel measurement reference signal to the terminal 52, where the transmission resource configuration information of the channel measurement reference signal is used to determine a location of the channel measurement reference signal;
  • the terminal 52 determines the channel measurement reference signal according to the transmission resource configuration information of the channel measurement reference signal, and receives the channel measurement result sent by the terminal 52 when performing channel measurement on the channel measurement reference signal;
  • the terminal 52 is configured to receive, by the base station 51, downlink control signaling that includes transmission resource configuration information of the channel measurement reference signal, where the transmission resource configuration information of the channel measurement reference signal is used to determine a location of the channel measurement reference signal;
  • the transmission resource configuration information of the channel measurement reference signal determines a channel measurement reference signal, and performs channel measurement on the channel measurement reference signal; and transmits the channel measurement result to the base station 51.
  • the disclosed method and smart device may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another The system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one second processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit;
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the base station sends the downlink control signaling that includes the transmission resource configuration information of the channel measurement reference signal to the terminal, where the transmission resource configuration information of the channel measurement reference signal is used to determine the channel measurement reference signal. position.
  • the terminal determines the location of the channel measurement reference signal according to the transmission resource configuration information of the channel measurement reference signal, performs channel measurement, and then transmits the channel measurement result to the base station. In this way, the problem of the channel measurement reference signal transmission indication and the channel measurement result reporting is solved.
  • the CSI measurement feedback mechanism of the embodiment of the present invention satisfies the requirements on the unlicensed carrier.

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Abstract

本发明公开了一种CSI测量反馈方法、基站、终端、计算机存储介质，包括：基站将包括信道测量参考信号的传输资源配置信息的下行控制信令发送至终端，其中，所述信道测量参考信号的传输资源配置信息用于确定信道测量参考信号的位置；当所述终端根据所述信道测量参考信号的传输资源配置信息确定出信道测量参考信号，并对所述信道测量参考信号进行信道测量时，接收所述终端发送的信道测量结果。

Description

信道状态信息测量反馈方法、基站、终端、计算机存储介质 技术领域
本发明涉及无线通信技术，尤其涉及一种非授权载波的信道状态信息(CSI，Channel State Information)测量反馈方法、基站、终端、计算机存储介质。
背景技术
无线通信系统中，接收端通常需要根据发送端发送的导频信号进行信道测量，并将测量得到的信道信息反馈给发送端，发送端根据获得的信道信息，如CSI使用特定的发射预编码技术来提高传输性能。在长期演进(LTE，Long Term Evolution)系统中，信道信息的获得是根据小区参考信号(CRS，Cell specific Reference Signals)或信道状态信息参考信号(CSI-RS，Channel State Information Reference signals)进行测量和信道估计获得的。在较新的协议版本中，主要采用的是基于CSI-RS的信道测量。
在现有技术中，基站会周期性地发送一套或多套CSI-RS，终端利用这些CSI-RS进行CSI测量，然后将测量得到的CSI反馈给基站。在LTE系统中，反映下行物理信道状态的CSI可能包括如下内容：信道质量指示(CQI，Channels Quality Indication)、预编码矩阵指示(PMI，Pre-coding Matrix Indicator)、预编码类型指示(PTI，Precoding Type Indicator)、和秩指示(RI，Rank Indicator)。
此外，CSI的反馈可分为周期性反馈和非周期反馈。终端可由无线资源控制(RRC，Radio Resource Control)信令配置为使用物理上行链路控制信道(PUCCH，Physical Uplink Control Channel)进行周期性地CSI反馈；也可由上行下行控制信息(DCI，Downlink Control Information)或随机接入 响应授权触发，使用物理上行共享信道(PUSCH，Physical Uplink Shared Channel)进行非周期地CSI反馈。
目前，LTE系统主要工作在授权载波上，为了支持更宽的频带，演进型LTE(LTE-A，LTE-Advanced)引入载波聚合(CA，Carrier Aggregation)，通过将多个连续或离散的载波聚合在一起，可以支持更宽的频谱。随着数据业务的不断增长，授权频谱资源越来越拥挤和紧张。因此LTE系统引入授权辅助接入(LAA，Licensed Assisted Access)技术，即在授权载波的辅助下，使用载波聚合等方法将LTE/LTE-A系统扩展到非授权频谱资源上使用。其中授权载波上的小区为主小区(PCell，Primary Cell)，非授权载波上的小区为辅小区(Scell，Secondary Cell)。
在非授权频谱上，除了LTE系统，还有其他无线保真(WiFi，Wireless Fidelity)、雷达(Radar)等系统的存在，为了公平性，各节点需要通过竞争获得信道使用权，在使用信道前，需要遵循先听后说原则(LBT，Listen Before Talk)，先进行干净信道评估(CCA，Clear channel access)，只有CCA结果表示信道空闲，网络节点才能接入信道，进行必要的参考信号和数据的发送。一般来说，CSI测量参考信号的发送以及CSI测量结果的上报也需要首先进行LBT/CCA，获取信道使用权。
基于此，现有技术存在的问题主要是：由于非授权载波信道不确定性，CSI测量参考信号无法进行严格的周期传输，CSI测量结果也无法保证在非授权载波上进行上报，也即现有的CSI测量以及反馈机制不能满足非授权载波上的需求。
发明内容
为解决上述技术问题，本发明实施例提供了一种CSI测量反馈方法、基站、终端、计算机存储介质。
本发明实施例提供的CSI测量反馈方法包括：
将包括信道测量参考信号的传输资源配置信息的下行控制信令发送至终端，其中，所述信道测量参考信号的传输资源配置信息用于确定信道测量参考信号的位置；
当所述终端根据所述信道测量参考信号的传输资源配置信息确定出信道测量参考信号，并对所述信道测量参考信号进行信道测量时，接收所述终端发送的信道测量结果。
本发明实施例中，所述信道测量参考信号至少包括如下信号中的一种：CRS、CSI-RS；
根据所述信道测量参考信号的位置确定所述信道测量参考信号的类型，所述信道测量参考信号的类型包括：机会周期信道测量参考信号、非周期信道测量参考信号；
其中，机会周期信道测量参考信号可能出现的子帧周期出现，每个子帧中正交频分复用技术(OFDM，Orthogonal Frequency Division Multiplexing)符号为相同或不同；
非周期信道测量参考信号可能出现的子帧非周期出现，且每个子帧中OFDM符号为相同或不同。
本发明实施例中，所述信道测量参考信号的传输资源配置信息至少包括以下之一：信道测量参考信号的子帧位置信息、信道测量参考信号的物理资源块对(PRB pair，Physical Resource Block pair)位置信息、信道测量参考信号的天线端口(port)数信息、信道测量参考信号在PRB pair的资源元素(RE，Element)位置信息；
当所述信道测量参考信号为机会周期信道测量参考信号时，所述将包括信道测量参考信号的传输资源配置信息的下行控制信令发送至终端，包括：
通过无线资源控制(RRC，Radio Resource Control)信令发送信道测量 参考信号的子帧位置信息和/或信道测量参考信号的PRB pair位置信息和/或信道测量参考信号的天线port数信息和/或信道测量参考信号在PRB pair的RE位置信息至终端；
当所述信道测量参考信号为非周期信道测量参考信号时，所述将包括信道测量参考信号的传输资源配置信息的下行控制信令发送至终端，包括：
通过物理层配置信令将信道测量参考信号的子帧位置信息发送至终端；和/或，
通过物理层控制信令将信道测量参考信号的PRB pair位置信息发送至终端；和/或，
通过物理层信令和/或RRC信令将信道测量参考信号的天线port数信息发送至终端；和/或，
通过物理层信令和/或RRC信令将信道测量参考信号在PRB pair的RE位置信息发送至终端。
本发明实施例中，当所述信道测量参考信号为机会周期信道测量参考信号时，所述方法还包括：
成功获取信道后，通过PCell或Scell发送信道抢占成功指示和/或信道测量参考信号发送使能给终端，以使所述终端接收到信道抢占成功指示和/或信道测量参考信号发送使能后，在预设的子帧位置周期地接收信道测量参考信号；或者，
在每个周期发送点之前或每个周期发送点上，通过PCell或者Scell向终端发送指示，以使所述终端在预设的子帧位置对当次周期信道测量参考信号进行接收；或者，
在每个周期发送点之前或每个周期发送点上，通过PCell或者Scell向UE发送指示，以通知所述终端当次周期信道测量参考信号无法发送。
本发明实施例中，当同时支持机会周期信道测量参考信号和非周期信 道测量参考信号的发送时，采用独立通知的方式、或隐式通知方式将所述机会周期信道测量参考信号和非周期信道测量参考信号的位置信息通知给终端；其中，隐式通知方式为：基站与终端之间预先约定非周期信道测量参考信号的发送位置为占用初期的K子帧以内，K≥1。
本发明实施例中，对于信道测量参考信号在非完整子帧上发送的情形，按照如下方式之一进行处理：
为终端配置两种信道测量参考信号配置，其中，第一配置对应完整子帧；第二配置对应非完整子帧；
通过物理控制信令中的下行控制信息DCI将使用第一配置还是第二配置的配置信息通知给终端；或者，终端根据子帧长度选择所使用的CSI-RS配置；
其中，限制部分子帧上的非周期信道测量参考信号发送：不允许部分子帧发送信道测量参考信号；或者，只允许大于预定长度的部分子帧发送信道测量参考信号，和/或对信道测量参考信号的配置进行约定。
本发明另一实施例提供的CSI测量反馈方法包括：
接收基站发送的包括信道测量参考信号的传输资源配置信息的下行控制信令，其中，所述信道测量参考信号的传输资源配置信息用于确定信道测量参考信号的位置；
根据所述信道测量参考信号的传输资源配置信息确定出信道测量参考信号，并对所述信道测量参考信号进行信道测量；
将信道测量结果发送至基站。
本发明实施例中，所述将信道测量结果发送至基站，包括：
采用PUCCH周期将信道测量结果发送至基站，候选的上报资源包括：部署在非授权载波上的服务SCell的PUCCH、部署在授权载波上的PCell的PUCCH、部署在其他非授权载波上的Scell的PUCCH；其中，其他非授 权载波与服务的非授权载波属于一个协作非授权载波集合，该集合中的非授权载波可以互相协作，进行控制信道和/或数据信道发送；其中，指定协作非授权载波集合中特定的一个或多个SCell用于CSI反馈，特定的SCell在资源抢占时，采用特定的LBT/CCA方法和/或参数，以提高资源抢占优先级和成功率；或者，采用PUSCH非周期将信道测量结果发送至基站，候选的上报资源包括：部署在非授权载波上的服务SCell的PUSCH；部署在授权载波上的PCell的PUSCH资源；部署在其他非授权载波上的Scell的PUSCH资源；其中，其他非授权载波与服务的非授权载波属于一个协作非授权载波集合，该集合中的非授权载波可以互相协作，进行控制信道和/或数据信道发送；其中，指定协作非授权载波集合中特定的一个或多个SCell用于CSI反馈，特定的SCell在资源抢占时，采用特定的LBT/CCA方法和/或参数，提高资源抢占优先级和成功率。
本发明实施例中，针对非授权载波上是否存在频率复用场景进行不同的CSI上报配置：
对于非授权载波上存在频率复用的场景，配置较小的CSI上报周期，配置宽带CSI和/或子带CSI；
对于非授权载波上不存在频率复用的场景，配置较大的CSI上报周期，仅配置宽带CSI两种CSI上报模式可由RRC进行配置，由DCI动态指示使用哪种上报模式；也可以由非授权载波上是否存在频率复用进行隐式指示；
可以仅配置一种CSI测量模式，上报该种CSI测量结果；
也可以同时配置两种CSI测量模式，根据是否存在频率复用上报其中的一种或两种。
本发明实施例提供的基站包括：
发送单元，配置为将包括信道测量参考信号的传输资源配置信息的下行控制信令发送至终端，其中，所述信道测量参考信号的传输资源配置信 息用于确定信道测量参考信号的位置；
接收单元，配置为当所述终端根据所述信道测量参考信号的传输资源配置信息确定出信道测量参考信号，并对所述信道测量参考信号进行信道测量时，接收所述终端发送的信道测量结果。
本发明实施例中，所述信道测量参考信号至少包括如下信号中的一种：CRS、CSI-RS；
根据所述信道测量参考信号的位置确定所述信道测量参考信号的类型，所述信道测量参考信号的类型包括：机会周期信道测量参考信号、非周期信道测量参考信号；
其中，机会周期信道测量参考信号所在的子帧周期出现，每个子帧中OFDM符号为相同或不同；
非周期信道测量参考信号所在的子帧非周期出现，且每个子帧中OFDM符号为相同或不同。
本发明实施例中，所述信道测量参考信号的传输资源配置信息至少包括以下之一：信道测量参考信号的子帧位置信息、信道测量参考信号的PRB pair位置信息、信道测量参考信号的天线port数信息、信道测量参考信号在PRB pair的RE位置信息；
所述发送单元，还配置为当所述信道测量参考信号为机会周期信道测量参考信号时，通过RRC信令发送信道测量参考信号的子帧位置信息和/或信道测量参考信号的PRB pair位置信息和/或信道测量参考信号的天线port数信息和/或信道测量参考信号在PRB pair的RE位置信息至终端；
所述发送单元，还配置为当所述信道测量参考信号为非周期信道测量参考信号时，通过物理层配置信令将信道测量参考信号的子帧位置信息发送至终端；和/或通过物理层控制信令将信道测量参考信号的PRB pair位置信息发送至终端；和/或通过物理层信令和/或RRC信令将信道测量参考信 号的天线port数信息发送至终端；和/或通过物理层信令和/或RRC信令将信道测量参考信号在PRB pair的RE位置信息发送至终端。
本发明实施例中，所述基站还包括：通知单元，配置为当所述信道测量参考信号为机会周期信道测量参考信号时，成功获取信道后，通过主小区PCell或辅小区Scell发送信道抢占成功指示和/或信道测量参考信号发送使能给终端，以使所述终端接收到信道抢占成功指示和/或信道测量参考信号发送使能后，在预设的子帧位置周期地接收信道测量参考信号；或者，
在每个周期发送点之前或每个周期发送点上，通过PCell或者Scell向终端发送指示，以使所述终端在预设的子帧位置对当次周期信道测量参考信号进行接收；或者，
在每个周期发送点之前或每个周期发送点上，通过PCell或者Scell向UE发送指示，以通知所述终端当次周期信道测量参考信号无法发送。
本发明实施例中，所述通知单元，还配置为当同时支持机会周期信道测量参考信号和非周期信道测量参考信号的发送时，采用独立通知的方式、或隐式通知方式将所述机会周期信道测量参考信号和非周期信道测量参考信号的位置信息通知给终端；其中，隐式通知方式为：基站与终端之间预先约定非周期信道测量参考信号的发送位置为占用初期的K子帧以内，K≥1。
本发明实施例中，所述基站还包括：
配置单元，配置为为终端配置两种信道测量参考信号配置，其中，第一配置对应完整子帧；第二配置对应非完整子帧；
所述通知单元，还配置为通过物理控制信令中的DCI将使用第一配置还是第二配置的配置信息通知给终端；或者，终端根据子帧长度选择所使用的CSI-RS配置；
其中，限制部分子帧上的非周期信道测量参考信号发送：不允许部分 子帧发送信道测量参考信号；或者，只允许大于预定长度的部分子帧发送信道测量参考信号，和/或对信道测量参考信号的配置进行约定。
本发明实施例提供的终端包括：
接收单元，配置为接收基站发送的包括信道测量参考信号的传输资源配置信息的下行控制信令，其中，所述信道测量参考信号的传输资源配置信息用于确定信道测量参考信号的位置；
测量单元，配置为根据所述信道测量参考信号的传输资源配置信息确定出信道测量参考信号，并对所述信道测量参考信号进行信道测量；
发送单元，配置为将信道测量结果发送至基站。
本发明实施例中，所述发送单元，还配置为采用PUCCH周期将信道测量结果发送至基站；候选的上报资源包括：部署在非授权载波上的服务SCell的PUCCH、部署在授权载波上的PCell的PUCCH、部署在其他非授权载波上的Scell的PUCCH；其中，其他非授权载波与服务的非授权载波属于一个协作非授权载波集合，该集合中的非授权载波可以互相协作，进行控制信道和/或数据信道发送；其中，指定协作非授权载波集合中特定的一个或多个SCell用于CSI反馈，特定的SCell在资源抢占时，采用特定的LBT/CCA方法和/或参数，以提高资源抢占优先级和成功率；或者，采用PUSCH非周期将信道测量结果发送至基站；候选的上报资源包括：部署在非授权载波上的服务SCell的PUSCH；部署在授权载波上的PCell的PUSCH资源；部署在其他非授权载波上的Scell的PUSCH资源；其中，其他非授权载波与服务的非授权载波属于一个协作非授权载波集合，该集合中的非授权载波可以互相协作，进行控制信道和/或数据信道发送；其中，指定协作非授权载波集合中特定的一个或多个SCell用于CSI反馈，特定的SCell在资源抢占时，采用特定的LBT/CCA方法和/或参数，提高资源抢占优先级和成功率。
本发明实施例中，所述终端还包括：
配置单元，配置为针对非授权载波上是否存在频率复用场景进行不同的CSI上报配置：对于非授权载波上存在频率复用的场景，配置较小的CSI上报周期，配置宽带CSI和/或子带CSI；对于非授权载波上不存在频率复用的场景，配置较大的CSI上报周期，仅配置宽带CSI；两种CSI上报模式可由RRC进行配置，由DCI动态指示使用哪种上报模式；也可以由非授权载波上是否存在频率复用进行隐式指示；可以仅配置一种CSI测量模式，上报该种CSI测量结果；也可以同时配置两种CSI测量模式，根据是否存在频率复用上报其中的一种或两种。
本发明实施例提供的计算机存储介质存储有计算机程序，该计算机程序用于执行上述CSI测量反馈方法。
本发明实施例的技术方案中，基站将包括信道测量参考信号的传输资源配置信息的下行控制信令发送至终端，其中，所述信道测量参考信号的传输资源配置信息用于确定信道测量参考信号的位置。终端根据所述信道测量参考信号的传输资源配置信息确定出信道测量参考信号的位置，并进行信道测量，然后将信道测量结果发送至基站。如此，解决了信道测量参考信号发送指示以及信道测量结果上报的问题。本发明实施例的CSI测量反馈机制满足了非授权载波上的需求。
附图说明
图1为本发明实施例一的CSI测量反馈方法的流程示意图；
图2为本发明实施例二的CSI测量反馈方法的流程示意图；
图3为本发明实施例的基站的结构组成示意图；
图4为本发明实施例的终端的结构组成示意图；
图5为本发明实施例的CSI测量反馈系统的结构组成示意图。
具体实施方式
为了能够更加详尽地了解本发明实施例的特点与技术内容，下面结合附图对本发明实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本发明实施例。
针对相关技术中，信道测量参考信号无法进行严格地周期传输，测量反馈不适应非授权载波的问题。本发明实施例提供了一种CSI测量反馈方法，图1为本发明实施例一的CSI测量反馈方法的流程示意图，本示例中的CSI测量反馈方法应用于基站侧，如图1所示，所述CSI测量反馈方法包括以下步骤：
步骤101：将包括信道测量参考信号的传输资源配置信息的下行控制信令发送至终端，其中，所述信道测量参考信号的传输资源配置信息用于确定信道测量参考信号的位置。
本发明实施例中，由于非授权载波信道占用不确定，基站将信道测量参考信号的位置通过指示的方式下发给终端。具体地，基站向终端发送下行控制信令，该下行控制信令包括信道测量参考信号的传输资源配置信息，所述信道测量参考信号的传输资源配置信息用于确定信道测量参考信号的位置。
本发明实施例中，所述信道测量参考信号至少包括如下信号中的一种：CRS、CSI-RS；
根据所述信道测量参考信号的位置确定所述信道测量参考信号的类型，所述信道测量参考信号的类型包括：机会周期信道测量参考信号、非周期信道测量参考信号；
其中，机会周期信道测量参考信号可能出现的子帧周期出现，每个子帧中OFDM符号为相同或不同；
非周期信道测量参考信号可能出现的子帧非周期出现，且每个子帧中 OFDM符号为相同或不同。
具体地，从终端角度而言，信道测量参考信号可能出现的位置包括如下情形：
1、信道测量参考信号可能出现的子帧周期出现；例如信道测量参考信号可能在第T，2T，3T，…，N×T子帧上出现，其中T表示信道测量参考信号的周期，信道测量参考信号在每个子帧中出现的OFDM符号可以是相同的，也可以是不同的。由于在每个周期点上，只有获取信道的SCell才能发送信道测量参考信号，未能成功获取信道的SCell不能发送信道测量参考信号。这种情形的信道测量参考信号称为机会周期信道测量参考信号。
2、信道测量参考信号可能出现的子帧是非周期的，每个子帧中信道测量参考信号出现的OFDM符号是固定的。这种情形的信道测量参考信号称为非周期信道测量参考信号。
上述方案中，子帧可以是LTE现有的长度为1ms的子帧，也可以是其他长度的子帧，例如长度小于1ms的部分子帧，或长度大于1ms的超帧。
本发明实施例中，所述信道测量参考信号的传输资源配置信息至少包括以下之一：信道测量参考信号的子帧位置信息、信道测量参考信号的PRB pair位置信息、信道测量参考信号的天线port数信息、信道测量参考信号在PRB pair的RE位置信息。
当所述信道测量参考信号为机会周期信道测量参考信号时，所述将包括信道测量参考信号的传输资源配置信息的下行控制信令发送至终端，包括：
通过RRC信令发送信道测量参考信号的子帧位置信息和/或信道测量参考信号的PRB pair位置信息和/或信道测量参考信号的天线port数信息和/或信道测量参考信号在PRB pair的RE位置信息至终端。
当所述信道测量参考信号为非周期信道测量参考信号时，所述将包括 信道测量参考信号的传输资源配置信息的下行控制信令发送至终端，包括：
通过物理层配置信令将信道测量参考信号的子帧位置信息发送至终端；和/或，
通过物理层控制信令将信道测量参考信号的PRB pair位置信息发送至终端；和/或，
通过物理层信令和/或RRC信令将信道测量参考信号的天线port数信息发送至终端；和/或，
通过物理层信令和/或RRC信令将信道测量参考信号在PRB pair的RE位置信息发送至终端。
上述方案中，物理层配置信令、物理层控制信令、RRC信令可以在授权载波上进行发送，也可以在非授权载波上进行发送。
本发明实施例中，LAA SCell可以使用如下方式之一进行信道测量参考信号发送：
方法1、对于机会周期信道测量参考信号，基站通过RRC信令发送信道测量参考信号的子帧位置信息、port数信息、PRB pair位置信息、PRB pair的RE位置信息至终端。终端假设可能会在预设的子帧位置接收到信道测量参考信号。由于LBT/CCA限制，基站无法在每个周期点发送信道测量参考信号，则基站应通过物理层控制信令发送通知信息至终端。通知的方法可以是如下之一：
1)基站成功获取信道后，通过PCell或Scell发送信道抢占成功指示和/或信道测量参考信号发送使能给终端，通知终端基站已经成功抢占信道和/或信道测量参考信号可以发送。终端在接收到通知后，周期地接收信道测量参考信号。直到基站即将释放、或已经释放、或信道测量参考信号无法再发送了，基站通过PCell或Scell发送信道释放指示和/或信道测量参考信号停止发送指示给终端，则终端不再假设在预设的子帧位置上存在信道测 量参考信号，直到终端下一次收到信道抢占成功指示和/或信道测量参考信号发送使能时，再继续接收信道测量参考信号。
2)基站在每个周期发送点之前或每个周期发送点上，通过PCell或者Scell向终端发送指示，通知终端当次信道测量参考信号可以发送。终端根据接收到的指示确定当次发送周期点上能够接收到信道测量参考信号。如果没有收到发送指示，则认为该周期点上没有信道测量参考信号发送。
3)基站在每个周期发送点之前或每个周期发送点上，通过PCell或者Scell向终端发送指示，通知终端当次信道测量参考信号无法发送。终端根据接收到的指示确定当次发送周期点上不能够接收到信道测量参考信号。如果没有收到不发送指示，则认为该周期点上有信道测量参考信号发送。
方法2、对于非周期信道测量参考信号，基站通过物理层配置信令发送子帧位置信息的通知至终端；基站通过物理层控制信令发送PRB pair位置信息的通知至终端；基站通过物理层信令和/或无线资源控制RRC信令发送信道测量参考信号port数信息的通知至终端；基站通过物理层信令和/或RRC信令发送信道测量参考信号在PRB pair的RE位置信息的通知至终端。
基站侧发送了信道测量参考信号的传输资源配置信息，终端侧可以根据上述信息确定信道测量参考信号的发送位置，例如，可以根据终端接收到的物理层配置信令的子帧位置信息和预定规则确定信道测量参考信号的发送位置，其中，信道测量参考信号为非周期信道测量参考信号。
方法3、同时支持机会周期信道测量参考信号和非周期信道测量参考信号的发送。
上述方法1和方法2中的配置方法可用于独立配置机会周期信道测量参考信号和非周期测量参考信号。
当同时支持机会周期信道测量参考信号和非周期信道测量参考信号的发送时，采用独立通知的方式、或隐式通知方式将所述机会周期信道测量 参考信号和非周期信道测量参考信号的位置信息通知给终端；其中，隐式通知方式为：基站与终端之间预先约定非周期信道测量参考信号的发送位置为占用初期的K子帧以内，K≥1。具体地：
基站可按照如下规则协调周期信道测量参考信号和非周期信道测量参考信号的发送：
1)独立通知：
独立通知周期信道测量参考信号和非周期测量参考信号是否出现，按照方法1指示周期信道测量参考信号的出现；按照方法2指示非周期信道测量参考信号的出现。
2)隐式通知：
基站与终端之间事先约定非周期信道测量参考信号的发送位置为占用初期的K子帧以内，例如K＝1，则表示非周期测量参考信号只能在占用信道后的第一个子帧内进行发送；K＝2，则表示非周期测量参考信号可在占用信道后的前两个子帧内进行发送；K＝3，则表示非周期测量参考信号可在占用信道后的前三个子帧内进行发送；其中第一个子帧可能是完整子帧(即长度为一个标准帧长，如1ms的子帧)，也可能是非完整子帧(即长度小于一个标准帧长，如1ms的子帧)。
如果基站根据机会周期信道测量参考信号配置，确定在占用期的前K个子帧内，没有周期信道测量参考信号发送，则基站在占用初期，配置和发送非周期测量参考信号。相应地，终端根据基站的配置，接收非周期测量参考信号和机会周期信道测量参考信号。
如果基站根据机会周期信道测量参考信号配置，确定在占用期的前K个子帧内，将有周期信道测量参考信号发送，则基站在占用初期，不再配置和发送非周期测量参考信号。相应地，终端根据基站提前配置的机会周期信道测量参考信号配置，确定在占用期的前K个子帧内，将有周期信道 测量参考信号发送，则终端默认基站不会发送非周期测量参考信号。
上述独立通知和方法隐式通知可以结合使用，即在占用初期使用隐式通知方法。在占用过程中，基站仍然可以采用显式通知方法，配置和发送机会周期和非周期测量参考信号。
对于信道测量参考信号在非完整子帧上发送的情形，按照如下方式之一进行处理：
为终端配置两种信道测量参考信号配置，其中，第一配置对应完整子帧；第二配置对应非完整子帧；
通过物理控制信令中的下行控制信息DCI将使用第一配置还是第二配置的配置信息通知给终端；或者，终端根据子帧长度选择所使用的CSI-RS配置；
其中，限制部分子帧上的非周期信道测量参考信号发送：不允许部分子帧发送信道测量参考信号；或者，只允许大于预定长度的部分子帧发送信道测量参考信号，和/或对信道测量参考信号的配置进行约定。具体地：对于机会周期信道测量参考信号或者非周期信道测量参考信号，在非完整子帧上发送的情形，则可按照如下方式之一进行处理：
1、基站为终端配置两种信道测量参考信号配置，其中第一配置对应完整子帧；第二配置对应非完整子帧情形；然后通过物理控制信令中的DCI通知终端，具体使用第一配置还是第二配置；或者，终端根据子帧长度自动选择使用哪种CSI-RS配置。其中第二配置满足下面的部分子帧信道测量参考信号发送约束。
2、限制部分子帧上的非周期信道测量参考信号发送：
1)不允许部分子帧发送信道测量参考信号。或者，
2)只允许大于一定长度的部分子帧发送信道测量参考信号，和/或对信道测量参考信号配置进行约束；
其中部分子帧信道测量参考信号发送约束是指：
例1：只允许长度大于半个子帧，即0.5ms的部分子帧发送信道测量参考信号。同时约定只使用CSI映射在后半帧、即第二个时隙(slot)上的CSI-RS配置。例如现有协议中，对于常规循环前缀(Normal Cyclic Prefix)，只能配置为配置0到配置31之间除配置0,5,10,11之外的CSI-RS配置；对于扩展循环前缀(Extended Cyclic Prefix)，只能配置为配置0到配置27之间除0，1，4，5，8，9，10，11之外的CSI-RS配置。
或者如果配置为CSI映射在前半帧的CSI-RS配置，可以将CSI参考信号映射到后半帧发送；以常规CP的CSI-RS配置0为例，(k’,l’)＝(9,5),ns＝0；可映射到slot2，(k’,l’)＝(9,5),ns＝1。
例2：只允许长度大于4个OFDM符号的部分子帧发送信道测量参考信号。同时约定只使用CSI映射在后半帧、即第二个时隙(slot)上，且时域位置不超过第4个OFDM符号的的CSI-RS配置。例如现有协议中，对于常规循环前缀(Normal Cyclic Prefix)，只能配置为配置0到配置31之间除配置0,4,5,9,10,11,18,19之外的CSI-RS配置；对于扩展循环前缀(Extended Cyclic Prefix)，只能配置为帧结构2的CSI-RS配置，配置16～27。
步骤102：当所述终端根据所述信道测量参考信号的传输资源配置信息确定出信道测量参考信号，并对所述信道测量参考信号进行信道测量时，接收所述终端发送的信道测量结果。
本发明实施例中，当所述信道测量参考信号为机会周期信道测量参考信号时，成功获取信道后，通过主小区PCell或辅小区Scell发送信道抢占成功指示和/或信道测量参考信号发送使能给终端，以使所述终端接收到信道抢占成功指示和/或信道测量参考信号发送使能后，在预设的子帧位置周期地接收信道测量参考信号；或者，在每个周期发送点之前或每个周期发送点上，通过PCell或者Scell向终端发送指示，以使所述终端在预设的子 帧位置对当次周期信道测量参考信号进行接收；或者，在每个周期发送点之前或每个周期发送点上，通过PCell或者Scell向终端发送指示，以通知所述终端当次周期信道测量参考信号无法发送。
图2为本发明实施例二的CSI测量反馈方法的流程示意图，本示例中的CSI测量反馈方法应用于终端侧，如图2所示，所述CSI测量反馈方法包括以下步骤：
步骤201：接收基站发送的包括信道测量参考信号的传输资源配置信息的下行控制信令，其中，所述信道测量参考信号的传输资源配置信息用于确定信道测量参考信号的位置。
步骤202：根据所述信道测量参考信号的传输资源配置信息确定出信道测量参考信号，并对所述信道测量参考信号进行信道测量。
步骤203：将信道测量结果发送至基站。
本发明实施例中，终端采用PUCCH周期将信道测量结果发送至基站，候选的上报资源包括：部署在非授权载波上的服务SCell的PUCCH、部署在授权载波上的PCell的PUCCH、部署在其他非授权载波上的Scell的PUCCH；其中，其他非授权载波与服务的非授权载波属于一个协作非授权载波集合，该集合中的非授权载波可以互相协作，进行控制信道和/或数据信道发送；其中，指定协作非授权载波集合中特定的一个或多个SCell用于CSI反馈，特定的SCell在资源抢占时，采用特定的LBT/CCA方法和/或参数，以提高资源抢占优先级和成功率；或者，采用PUSCH非周期将信道测量结果发送至基站，候选的上报资源包括：部署在非授权载波上的服务SCell的PUSCH；部署在授权载波上的PCell的PUSCH资源；部署在其他非授权载波上的Scell的PUSCH资源；其中，其他非授权载波与服务的非授权载波属于一个协作非授权载波集合，该集合中的非授权载波可以互相协作，进行控制信道和/或数据信道发送；其中，指定协作非授权载波集合中特定 的一个或多个SCell用于CSI反馈，特定的SCell在资源抢占时，采用特定的LBT/CCA方法和/或参数，提高资源抢占优先级和成功率。
优选地，指定协作非授权载波集合中特定的一个或多个SCell用于CSI反馈，例如使用信道条件最好(RSRP、CQI、SINR等测量值最大)的SCell，或者小区编号最小/最大的SCell作为指定CSI反馈SCell，这些特定的SCell在资源抢占时，采用特定的LBT/CCA方法和/或参数，提高资源抢占优先级和成功率，例如可只进行初始CCA操作，不进行ECCA操作，和/或使用较小的竞争窗等。
本发明实施例中，对于采用PUCCH周期将信道测量结果发送至基站，可以采用如下方式：
1、在预定的周期CSI上报时间点上，
1)优先使用部署在非授权载波上的服务SCell的PUCCH，进行周期CSI上报；
2)如果部署在非授权载波上的服务SCell没有抢占到信道资源，则尝试调度部署在授权载波上的PCell的PUCCH，进行周期CSI上报；
3)如果部署在授权载波上的PCell上PUCCH资源紧张，无法为非授权载波CSI上报分配PUCCH资源，则尝试调度部署在其他非授权载波上的Scell的PUCCH，进行周期CSI上报。
其中，其他非授权载波与服务的非授权载波属于一个协作非授权载波集合，该集合中的非授权载波可以互相协作，进行控制信道和/或数据信道发送。
4)如果部署在授权载波上的PCell和部署在非授权载波上的协作SCell都无法调度PUCCH用于周期CSI上报，则放弃此次CSI上报。
2、在预定的周期CSI上报时间点上，
1)优先使用部署在授权载波上的服务PCell的PUCCH进行周期上报；
2)如果部署在授权载波上的服务PCell的PUCCH资源紧张，无法为非授权载波CSI上报分配PUCCH资源，则尝试调度部署在非授权载波上的服务Scell的PUCCH，进行周期CSI上报；
3)如果部署在非授权载波上的服务SCell没有抢占到信道资源，则可以尝试调度部署在非授权载波上的其他SCell的PUCCH，进行周期CSI上报；
其中，其他非授权载波与服务的非授权载波属于一个协作非授权载波集合，该集合中的非授权载波可以互相协作，进行控制信道和/或数据信道发送。
4)如果部署在授权载波上的PCell和部署在非授权载波上的协作SCell都无法调度PUCCH用于周期CSI上报，则放弃此次CSI上报。
对于采用PUSCH非周期将信道测量结果发送至基站，可以采用如下方式：
1、在触发的非周期CSI上报时间点上，
1)优先使用部署在非授权载波上的服务SCell的PUSCH，进行非周期CSI上报；
2)如果部署在非授权载波上的服务SCell此时无法获取上行信道资源，则可以使用部署在授权载波上的PCell的PUSCH资源，进行非周期CSI上报；
3)如果部署在授权载波上的PCell无法调度PUSCH资源，则尝试调度部署在其他非授权载波上的Scell的PUSCH资源，进行非周期CSI上报；
其中其他非授权载波与服务的非授权载波属于一个协作非授权载波集合，该集合中的非授权载波可以互相协作，进行控制信道和/或数据信道发送。
4)如果部署在授权载波上的PCell和部署在非授权载波上的协作SCell 都无法调度PUSCH用于非周期CSI上报，则放弃此次CSI上报。
2、在触发的非周期CSI上报时间点上，
1)优先使用部署在授权载波上的PCell的PUSCH资源，进行非周期CSI上报；
2)如果部署在授权载波上的PCell此时无法调度PUSCH资源，则使用部署在非授权载波上的服务SCell的PUSCH，进行非周期CSI上报；
3)如果部署在非授权载波上的服务SCell此时无法获取上行信道资源，则尝试调度部署在其他非授权载波上的Scell的PUSCH资源，进行非周期CSI上报；
其中，其他非授权载波与服务的非授权载波属于一个协作非授权载波集合，该集合中的非授权载波可以互相协作，进行控制信道和/或数据信道发送。
4)如果部署在授权载波上的PCell和部署在非授权载波上的协作SCell都无法调度PUSCH用于非周期CSI上报，则放弃此次CSI上报。
候选的上报资源包括：部署在非授权载波上的服务SCell的PUSCH；部署在授权载波上的PCell的PUSCH资源；部署在其他非授权载波上的Scell的PUSCH资源；其中，其他非授权载波与服务的非授权载波属于一个协作非授权载波集合，该集合中的非授权载波可以互相协作，进行控制信道和/或数据信道发送。优选地，指定协作非授权载波集合中特定的一个或多个SCell用于CSI反馈，这些特定的SCell在资源抢占时，采用特定的LBT/CCA方法和/或参数，提高资源抢占优先级和成功率，例如可只进行初始CCA操作，不进行ECCA操作，和/或使用较小的竞争窗等。
针对不同的干扰特性，LTE系统可配置多类非授权载波信道状态信息(CSI，Channel State Information)：
1、对于非授权载波上支持频率复用的场景：
部署在非授权载波上的服务SCell占用信道时，系统中可能有其他部署在相同非授权载波上的SCell同时占用信道，干扰状况与授权载波类似，占用期的干扰也会经常变化，且在频域上呈现频选特性。
这种场景下，非授权载波上可配置较小的CSI上报周期，配置宽带CSI和/或子带CSI，其中CSI可能包括CQI、PMI、RI。
2、对于非授权载波上不支持频率复用的场景：
LBT/CCA成功后，部署在非授权载波上的服务SCell将独占信道，系统中的干扰以热噪声为主，在几次占用中基本保持稳定，且在频域上也保持稳定。
这种场景下，非授权载波可配置较大的CSI上报周期，可仅配置宽带CSI，其中CSI可能包括CQI、PMI、RI。
对于系统中配置了多个相邻非授权载波、非频率复用的场景，若多个相邻非授权载波上的LAA有用信号发射功率相当，则多个非授权载波的CSI是近似的。
这种场景下，当某个非授权载波的CSI不可获取时，可使用其他载波的CSI作为近似CSI。其中可能CSI的部分内容可以近似，例如仅CQI可以近似，或者CQI和/或RI可以近似；也可能CSI的所有内容都可以近似，例如CQI、PMI、RI都可以近似；
因此，可以定义一个CSI协作集合，集合的非授权载波上的小区，LAA有用信号发射功率P相同，或在很小的一个范围内，例如Pmin<＝P<＝Pmax，Pmin为范围的最小值，Pmax为范围的最大值。
3、对于非授权载波支持频率复用，但不是一直都存在频率复用的小区的场景
在不存在频率服用小区时按方式1配置CSI；在存在频率服用小区时按方式2配置CSI。
两种CSI上报模式可由RRC进行配置，由DCI动态指示使用哪种上报模式；也可以由非授权载波上是否存在频率复用进行隐式指示。
可以仅配置一种CSI测量模式，上报该种CSI测量结果；
也可以同时配置两种CSI测量模式，根据是否存在频率复用上报其中的一种或两种。
图3为本发明实施例的基站的结构组成示意图，如图3所示，本发明实施例的基站包括：
发送单元31，配置为将包括信道测量参考信号的传输资源配置信息的下行控制信令发送至终端，其中，所述信道测量参考信号的传输资源配置信息用于确定信道测量参考信号的位置；
接收单元32，配置为当所述终端根据所述信道测量参考信号的传输资源配置信息确定出信道测量参考信号，并对所述信道测量参考信号进行信道测量时，接收所述终端发送的信道测量结果。
本发明实施例中，所述信道测量参考信号至少包括如下信号中的一种：CRS、CSI-RS；
根据所述信道测量参考信号的位置确定所述信道测量参考信号的类型，所述信道测量参考信号的类型包括：机会周期信道测量参考信号、非周期信道测量参考信号；
其中，机会周期信道测量参考信号所在的子帧周期出现，每个子帧中OFDM符号为相同或不同；
非周期信道测量参考信号所在的子帧非周期出现，且每个子帧中OFDM符号为相同或不同。
本发明实施例中，所述信道测量参考信号的传输资源配置信息至少包括以下之一：信道测量参考信号的子帧位置信息、信道测量参考信号的PRB pair位置信息、信道测量参考信号的天线port数信息、信道测量参考信号 在PRB pair的RE位置信息；
所述发送单元31，还配置为当所述信道测量参考信号为机会周期信道测量参考信号时，通过RRC信令发送信道测量参考信号的子帧位置信息和/或信道测量参考信号的PRB pair位置信息和/或信道测量参考信号的天线port数信息和/或信道测量参考信号在PRB pair的RE位置信息至终端；
所述发送单元31，还配置为当所述信道测量参考信号为非周期信道测量参考信号时，通过物理层配置信令将信道测量参考信号的子帧位置信息发送至终端；和/或通过物理层控制信令将信道测量参考信号的PRB pair位置信息发送至终端；和/或通过物理层信令和/或RRC信令将信道测量参考信号的天线port数信息发送至终端；和/或通过物理层信令和/或RRC信令将信道测量参考信号在PRB pair的RE位置信息发送至终端。
本发明实施例中，所述基站还包括：通知单元33，配置为当所述信道测量参考信号为机会周期信道测量参考信号时，成功获取信道后，通过主小区PCell或辅小区Scell发送信道抢占成功指示和/或信道测量参考信号发送使能给终端，以使所述终端接收到信道抢占成功指示和/或信道测量参考信号发送使能后，在预设的子帧位置周期地接收信道测量参考信号；或者，
在每个周期发送点之前或每个周期发送点上，通过PCell或者Scell向终端发送指示，以使所述终端在预设的子帧位置对当次周期信道测量参考信号进行接收；或者，
在每个周期发送点之前或每个周期发送点上，通过PCell或者Scell向UE发送指示，以通知所述终端当次周期信道测量参考信号无法发送。
所述通知单元33，还配置为当同时支持机会周期信道测量参考信号和非周期信道测量参考信号的发送时，采用独立通知的方式、或隐式通知方式将所述机会周期信道测量参考信号和非周期信道测量参考信号的位置信息通知给终端；其中，隐式通知方式为：基站与终端之间预先约定非周期 信道测量参考信号的发送位置为占用初期的K子帧以内，K≥1。
所述基站还包括：
配置单元34，配置为为终端配置两种信道测量参考信号配置，其中，第一配置对应完整子帧；第二配置对应非完整子帧；
所述通知单元33，还配置为通过物理控制信令中的DCI将使用第一配置还是第二配置的配置信息通知给终端；或者，终端根据子帧长度选择所使用的CSI-RS配置；
其中，限制部分子帧上的非周期信道测量参考信号发送：不允许部分子帧发送信道测量参考信号；或者，只允许大于预定长度的部分子帧发送信道测量参考信号，和/或对信道测量参考信号的配置进行约定。
本领域技术人员应当理解，图3所示的基站中的各单元的实现功能可参照前述CSI测量反馈方法的相关描述而理解。图3所示的基站中的各单元的功能可通过运行于处理器上的程序而实现，也可通过具体的逻辑电路而实现。
在实际应用中，所述基站中的各个单元所实现的功能，均可由位于基站中的中央处理器(Central Processing Unit，CPU)、或微处理器(Micro Processor Unit，MPU)、或数字信号处理器(Digital Signal Processor，DSP)、或现场可编程门阵列(Field Programmable Gate Array，FPGA)等实现。
图4为本发明实施例的终端的结构组成示意图，如图4所示，本发明实施例的终端包括：
接收单元41，配置为接收基站发送的包括信道测量参考信号的传输资源配置信息的下行控制信令，其中，所述信道测量参考信号的传输资源配置信息用于确定信道测量参考信号的位置；
测量单元42，配置为根据所述信道测量参考信号的传输资源配置信息确定出信道测量参考信号，并对所述信道测量参考信号进行信道测量；
发送单元43，配置为将信道测量结果发送至基站。
本发明实施例中，所述发送单元43，还配置为采用PUCCH周期将信道测量结果发送至基站；候选的上报资源包括：部署在非授权载波上的服务SCell的PUCCH、部署在授权载波上的PCell的PUCCH、部署在其他非授权载波上的Scell的PUCCH；其中，其他非授权载波与服务的非授权载波属于一个协作非授权载波集合，该集合中的非授权载波可以互相协作，进行控制信道和/或数据信道发送；其中，指定协作非授权载波集合中特定的一个或多个SCell用于CSI反馈，特定的SCell在资源抢占时，采用特定的LBT/CCA方法和/或参数，以提高资源抢占优先级和成功率；或者，采用PUSCH非周期将信道测量结果发送至基站；候选的上报资源包括：部署在非授权载波上的服务SCell的PUSCH；部署在授权载波上的PCell的PUSCH资源；部署在其他非授权载波上的Scell的PUSCH资源；其中，其他非授权载波与服务的非授权载波属于一个协作非授权载波集合，该集合中的非授权载波可以互相协作，进行控制信道和/或数据信道发送；其中，指定协作非授权载波集合中特定的一个或多个SCell用于CSI反馈，特定的SCell在资源抢占时，采用特定的LBT/CCA方法和/或参数，提高资源抢占优先级和成功率。
所述终端还包括：
配置单元44，配置为针对非授权载波上是否存在频率复用场景进行不同的CSI上报配置：对于非授权载波上存在频率复用的场景，配置较小的CSI上报周期，配置宽带CSI和/或子带CSI；对于非授权载波上不存在频率复用的场景，配置较大的CSI上报周期，仅配置宽带CSI；两种CSI上报模式可由RRC进行配置，由DCI动态指示使用哪种上报模式；也可以由非授权载波上是否存在频率复用进行隐式指示；可以仅配置一种CSI测量模式，上报该种CSI测量结果；也可以同时配置两种CSI测量模式，根据 是否存在频率复用上报其中的一种或两种。
本发明实施例的技术方案中，基站将包括信道测量参考信号的传输资源配置信息的下行控制信令发送至终端，其中，所述信道测量参考信号的传输资源配置信息用于确定信道测量参考信号的位置。终端根据所述信道测量参考信号的传输资源配置信息确定出信道测量参考信号的位置，并进行信道测量，然后将信道测量结果发送至基站。如此，实现了信道测量参考信号进行严格地周期传输以及信道测量结果在非授权载波上进行上报。本发明实施例的CSI测量反馈机制满足了非授权载波上的需求。
本领域技术人员应当理解，图4所示的终端中的各单元的实现功能可参照前述CSI测量反馈方法的相关描述而理解。图4所示的终端中的各单元的功能可通过运行于处理器上的程序而实现，也可通过具体的逻辑电路而实现。
在实际应用中，所述终端中的各个单元所实现的功能，均可由位于终端中的中央处理器(Central Processing Unit，CPU)、或微处理器(Micro Processor Unit，MPU)、或数字信号处理器(Digital Signal Processor，DSP)、或现场可编程门阵列(Field Programmable Gate Array，FPGA)等实现。
本发明实施例上述业务信令跟踪的装置如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例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中，包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read Only Memory)、磁碟或者光盘等各种可以存储程序代码的介质。这样，本发明实施例不限制于任何特定的硬件和软件结合。
相应地，本发明实施例还提供一种计算机存储介质，其中存储有计算机程序，该计算机程序用于执行本发明实施例的CSI测量反馈方法。
图5为本你发明实施例的CSI测量反馈系统的结构组成示意图，如图5所示，所述系统包括：
基站51，配置为将包括信道测量参考信号的传输资源配置信息的下行控制信令发送至终端52，其中，所述信道测量参考信号的传输资源配置信息用于确定信道测量参考信号的位置；所述终端52根据所述信道测量参考信号的传输资源配置信息确定出信道测量参考信号，并对所述信道测量参考信号进行信道测量时，接收所述终端52发送的信道测量结果；
终端52，配置为接收基站51发送的包括信道测量参考信号的传输资源配置信息的下行控制信令，其中，所述信道测量参考信号的传输资源配置信息用于确定信道测量参考信号的位置；根据所述信道测量参考信号的传输资源配置信息确定出信道测量参考信号，并对所述信道测量参考信号进行信道测量；将信道测量结果发送至基站51。
本领域技术人员应当理解，本发明实施例的电子设备中的各单元所实现的功能，可参照前述的信息处理方法的相关描述而理解，本发明实施例的电子设备中的各单元，可通过实现本发明实施例所述的功能的模拟电路而实现，也可以通过执行本发明实施例所述的功能的软件在智能终端52上的运行而实现。
本发明实施例所记载的技术方案之间，在不冲突的情况下，可以任意组合。
在本发明所提供的几个实施例中，应该理解到，所揭露的方法和智能设备，可以通过其它的方式实现。以上所描述的设备实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个单元或组件可以结合，或可以集成到另一个 系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。
上述作为分离部件说明的单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元，即可以位于一个地方，也可以分布到多个网络单元上；可以根据实际的需要选择其中的部分或全部单元来实现本实施例方案的目的。
另外，在本发明各实施例中的各功能单元可以全部集成在一个第二处理单元中，也可以是各单元分别单独作为一个单元，也可以两个或两个以上单元集成在一个单元中；上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。
工业实用性
本发明实施例的技术方案，基站将包括信道测量参考信号的传输资源配置信息的下行控制信令发送至终端，其中，所述信道测量参考信号的传输资源配置信息用于确定信道测量参考信号的位置。终端根据所述信道测量参考信号的传输资源配置信息确定出信道测量参考信号的位置，并进行信道测量，然后将信道测量结果发送至基站。如此，解决了信道测量参考信号发送指示以及信道测量结果上报的问题。本发明实施例的CSI测量反馈机制满足了非授权载波上的需求。

Claims (19)

  1. 一种信道状态信息CSI测量反馈方法，所述方法包括：
    将包括信道测量参考信号的传输资源配置信息的下行控制信令发送至终端，其中，所述信道测量参考信号的传输资源配置信息用于确定信道测量参考信号的位置；
    当所述终端根据所述信道测量参考信号的传输资源配置信息确定出信道测量参考信号，并对所述信道测量参考信号进行信道测量时，接收所述终端发送的信道测量结果。
  2. 根据权利要求1所述的CSI测量反馈方法，其中，所述信道测量参考信号至少包括如下信号中的一种：小区参考信号CRS、信道状态信息参考信号CSI-RS；
    根据所述信道测量参考信号的位置确定所述信道测量参考信号的类型，所述信道测量参考信号的类型包括：机会周期信道测量参考信号、非周期信道测量参考信号；
    其中，机会周期信道测量参考信号所在的子帧周期出现，每个子帧中正交频分复用技术OFDM符号为相同或不同；
    非周期信道测量参考信号所在的子帧非周期出现，且每个子帧中OFDM符号为相同或不同。
  3. 根据权利要求2所述的CSI测量反馈方法，其中，所述信道测量参考信号的传输资源配置信息至少包括以下之一：信道测量参考信号的子帧位置信息、信道测量参考信号的物理资源块对PRB pair位置信息、信道测量参考信号的天线端口port数信息、信道测量参考信号在PRB pair的资源元素RE位置信息；
    当所述信道测量参考信号为机会周期信道测量参考信号时，所述将包括信道测量参考信号的传输资源配置信息的下行控制信令发送至终端，包 括：
    通过无线资源控制RRC信令发送信道测量参考信号的子帧位置信息和/或信道测量参考信号的PRB pair位置信息和/或信道测量参考信号的天线port数信息和/或信道测量参考信号在PRB pair的RE位置信息至终端；
    当所述信道测量参考信号为非周期信道测量参考信号时，所述将包括信道测量参考信号的传输资源配置信息的下行控制信令发送至终端，包括：
    通过物理层配置信令将信道测量参考信号的子帧位置信息发送至终端；和/或，
    通过物理层控制信令将信道测量参考信号的PRB pair位置信息发送至终端；和/或，
    通过物理层信令和/或RRC信令将信道测量参考信号的天线port数信息发送至终端；和/或，
    通过物理层信令和/或RRC信令将信道测量参考信号在PRB pair的RE位置信息发送至终端。
  4. 根据权利要求2或3所述的CSI测量反馈方法，其中，当所述信道测量参考信号为机会周期信道测量参考信号时，所述方法还包括：
    成功获取信道后，通过主小区PCell或辅小区Scell发送信道抢占成功指示和/或信道测量参考信号发送使能给终端，以使所述终端接收到信道抢占成功指示和/或信道测量参考信号发送使能后，在预设的子帧位置周期地接收信道测量参考信号；或者，
    在每个周期发送点之前或每个周期发送点上，通过PCell或者Scell向终端发送指示，以使所述终端在预设的子帧位置对当次周期信道测量参考信号进行接收；或者，
    在每个周期发送点之前或每个周期发送点上，通过PCell或者Scell向UE发送指示，以通知所述终端当次周期信道测量参考信号无法发送。
  5. 根据权利要求4所述的CSI测量反馈方法，其中，所述方法还包括：
    当同时支持机会周期信道测量参考信号和非周期信道测量参考信号的发送时，采用独立通知的方式、或隐式通知方式将所述机会周期信道测量参考信号和非周期信道测量参考信号的位置信息通知给终端；其中，隐式通知方式为：基站与终端之间预先约定非周期信道测量参考信号的发送位置为占用初期的K子帧以内，K≥1。
  6. 根据权利要求4所述的CSI测量反馈方法，其中，所述方法还包括：
    对于信道测量参考信号在非完整子帧上发送的情形，按照如下方式之一进行处理：
    为终端配置两种信道测量参考信号配置，其中，第一配置对应完整子帧；第二配置对应非完整子帧满足部分子帧上的信道测量参考信号配置约束；通过物理控制信令中的下行控制信息DCI将使用第一配置还是第二配置的配置信息通知给终端；或者，终端根据子帧长度选择所使用的CSI-RS配置；
    其中，限制部分子帧上的非周期信道测量参考信号发送：不允许部分子帧发送信道测量参考信号；或者，只允许大于预定长度的部分子帧发送信道测量参考信号，和/或对信道测量参考信号的配置进行约定，和/或对测量参考信号进行前半子帧和后半子帧映射。
  7. 一种信道状态信息CSI测量反馈方法，所述方法包括：
    接收基站发送的包括信道测量参考信号的传输资源配置信息的下行控制信令，其中，所述信道测量参考信号的传输资源配置信息用于确定信道测量参考信号的位置；
    根据所述信道测量参考信号的传输资源配置信息确定出信道测量参考信号，并对所述信道测量参考信号进行信道测量；
    将信道测量结果发送至基站。
  8. 根据权利要求7所述的信道状态信息CSI测量反馈方法，其中，所述将信道测量结果发送至基站，包括：
    采用物理上行链路控制信道PUCCH周期将信道测量结果发送至基站，候选的上报资源包括：部署在非授权载波上的服务SCell的PUCCH、部署在授权载波上的PCell的PUCCH、部署在其他非授权载波上的Scell的PUCCH；其中，其他非授权载波与服务的非授权载波属于一个协作非授权载波集合，该集合中的非授权载波可以互相协作，进行控制信道和/或数据信道发送；其中，指定协作非授权载波集合中特定的一个或多个SCell用于CSI反馈，特定的SCell在资源抢占时，采用特定的LBT/CCA方法和/或参数，以提高资源抢占优先级和成功率；
    或者，采用物理上行共享信道PUSCH非周期将信道测量结果发送至基站，候选的上报资源包括：部署在非授权载波上的服务SCell的PUSCH；部署在授权载波上的PCell的PUSCH资源；部署在其他非授权载波上的Scell的PUSCH资源；其中，其他非授权载波与服务的非授权载波属于一个协作非授权载波集合，该集合中的非授权载波可以互相协作，进行控制信道和/或数据信道发送；其中，指定协作非授权载波集合中特定的一个或多个SCell用于CSI反馈，特定的SCell在资源抢占时，采用特定的LBT/CCA方法和/或参数，提高资源抢占优先级和成功率。
  9. 根据权利要求7所述的信道状态信息CSI测量反馈方法，其中，所述方法还包括：
    针对非授权载波上是否存在频率复用场景进行不同的CSI上报配置：
    对于非授权载波上存在频率复用的场景，配置较小的CSI上报周期，配置宽带CSI和/或子带CSI；
    对于非授权载波上不存在频率复用的场景，配置较大的CSI上报周期，仅配置宽带CSI；
    两种CSI上报模式可由RRC进行配置，由DCI动态指示使用哪种上报模式；也可以由非授权载波上是否存在频率复用进行隐式指示；
    可以仅配置一种CSI测量模式，上报该种CSI测量结果；
    也可以同时配置两种CSI测量模式，根据是否存在频率复用上报其中的一种或两种。
  10. 一种基站，所述基站包括：
    发送单元，配置为将包括信道测量参考信号的传输资源配置信息的下行控制信令发送至终端，其中，所述信道测量参考信号的传输资源配置信息用于确定信道测量参考信号的位置；
    接收单元，配置为当所述终端根据所述信道测量参考信号的传输资源配置信息确定出信道测量参考信号，并对所述信道测量参考信号进行信道测量时，接收所述终端发送的信道测量结果。
  11. 根据权利要求10所述的基站，其中，所述信道测量参考信号至少包括如下信号中的一种：CRS、CSI-RS；
    根据所述信道测量参考信号的位置确定所述信道测量参考信号的类型，所述信道测量参考信号的类型包括：机会周期信道测量参考信号、非周期信道测量参考信号；
    其中，机会周期信道测量参考信号所在的子帧周期出现，每个子帧中OFDM符号为相同或不同；
    非周期信道测量参考信号所在的子帧非周期出现，且每个子帧中OFDM符号为相同或不同。
  12. 根据权利要求11所述的基站，其中，所述信道测量参考信号的传输资源配置信息至少包括以下之一：信道测量参考信号的子帧位置信息、信道测量参考信号的PRB pair位置信息、信道测量参考信号的天线port数信息、信道测量参考信号在PRB pair的RE位置信息；
    所述发送单元，还配置为当所述信道测量参考信号为机会周期信道测量参考信号时，通过RRC信令发送信道测量参考信号的子帧位置信息和/或信道测量参考信号的PRB pair位置信息和/或信道测量参考信号的天线port数信息和/或信道测量参考信号在PRB pair的RE位置信息至终端；
    所述发送单元，还配置为当所述信道测量参考信号为非周期信道测量参考信号时，通过物理层配置信令将信道测量参考信号的子帧位置信息发送至终端；和/或通过物理层控制信令将信道测量参考信号的PRB pair位置信息发送至终端；和/或通过物理层信令和/或RRC信令将信道测量参考信号的天线port数信息发送至终端；和/或通过物理层信令和/或RRC信令将信道测量参考信号在PRB pair的RE位置信息发送至终端。
  13. 根据权利要求11或12所述的基站，其中，所述基站还包括：通知单元，配置为当所述信道测量参考信号为机会周期信道测量参考信号时，成功获取信道后，通过主小区PCell或辅小区Scell发送信道抢占成功指示和/或信道测量参考信号发送使能给终端，以使所述终端接收到信道抢占成功指示和/或信道测量参考信号发送使能后，在预设的子帧位置周期地接收信道测量参考信号；或者，
    在每个周期发送点之前或每个周期发送点上，通过PCell或者Scell向终端发送指示，以使所述终端在预设的子帧位置对当次周期信道测量参考信号进行接收；或者，
    在每个周期发送点之前或每个周期发送点上，通过PCell或者Scell向UE发送指示，以通知所述终端当次周期信道测量参考信号无法发送。
  14. 根据权利要求13所述的基站，其中，所述通知单元，还配置为当同时支持机会周期信道测量参考信号和非周期信道测量参考信号的发送时，采用独立通知的方式、或隐式通知方式将所述机会周期信道测量参考信号和非周期信道测量参考信号的位置信息通知给终端；其中，隐式通知 方式为：基站与终端之间预先约定非周期信道测量参考信号的发送位置为占用初期的K子帧以内，K≥1。
  15. 根据权利要求14所述的基站，其中，所述基站还包括：
    配置单元，配置为为终端配置两种信道测量参考信号配置，其中，第一配置对应完整子帧；第二配置对应非完整子帧；
    所述通知单元，还配置为通过物理控制信令中的DCI将使用第一配置还是第二配置的配置信息通知给终端；或者，终端根据子帧长度选择所使用的CSI-RS配置；
    其中，限制部分子帧上的非周期信道测量参考信号发送：不允许部分子帧发送信道测量参考信号；或者，只允许大于预定长度的部分子帧发送信道测量参考信号，和/或对信道测量参考信号的配置进行约定。
  16. 一种终端，所述终端包括：
    接收单元，配置为接收基站发送的包括信道测量参考信号的传输资源配置信息的下行控制信令，其中，所述信道测量参考信号的传输资源配置信息用于确定信道测量参考信号的位置；
    测量单元，配置为根据所述信道测量参考信号的传输资源配置信息确定出信道测量参考信号，并对所述信道测量参考信号进行信道测量；
    发送单元，配置为将信道测量结果发送至基站。
  17. 根据权利要求16所述的终端，其中，所述发送单元，还配置为采用PUCCH周期将信道测量结果发送至基站；候选的上报资源包括：部署在非授权载波上的服务SCell的PUCCH、部署在授权载波上的PCell的PUCCH、部署在其他非授权载波上的Scell的PUCCH；其中，其他非授权载波与服务的非授权载波属于一个协作非授权载波集合，该集合中的非授权载波可以互相协作，进行控制信道和/或数据信道发送；其中，指定协作非授权载波集合中特定的一个或多个SCell用于CSI反馈，特定的SCell在 资源抢占时，采用特定的LBT/CCA方法和/或参数，以提高资源抢占优先级和成功率；或者，采用PUSCH非周期将信道测量结果发送至基站；候选的上报资源包括：部署在非授权载波上的服务SCell的PUSCH；部署在授权载波上的PCell的PUSCH资源；部署在其他非授权载波上的Scell的PUSCH资源；其中，其他非授权载波与服务的非授权载波属于一个协作非授权载波集合，该集合中的非授权载波可以互相协作，进行控制信道和/或数据信道发送；其中，指定协作非授权载波集合中特定的一个或多个SCell用于CSI反馈，特定的SCell在资源抢占时，采用特定的LBT/CCA方法和/或参数，提高资源抢占优先级和成功率。
  18. 根据权利要求16所述的终端，其中，所述终端还包括：
    配置单元，配置为针对非授权载波上是否存在频率复用场景进行不同的CSI上报配置：对于非授权载波上存在频率复用的场景，配置较小的CSI上报周期，配置宽带CSI和/或子带CSI；对于非授权载波上不存在频率复用的场景，配置较大的CSI上报周期，仅配置宽带CSI；两种CSI上报模式可由RRC进行配置，由DCI动态指示使用哪种上报模式；也可以由非授权载波上是否存在频率复用进行隐式指示；可以仅配置一种CSI测量模式，上报该种CSI测量结果；也可以同时配置两种CSI测量模式，根据是否存在频率复用上报其中的一种或两种。
  19. 一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，该计算机可执行指令配置为执行权利要求1-9任一项所述的信道状态信息CSI测量反馈方法。
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