WO2017049533A1 - 一种上报信道状态信息时刻的更新方法、通信设备及*** - Google Patents

一种上报信道状态信息时刻的更新方法、通信设备及*** Download PDF

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Publication number
WO2017049533A1
WO2017049533A1 PCT/CN2015/090562 CN2015090562W WO2017049533A1 WO 2017049533 A1 WO2017049533 A1 WO 2017049533A1 CN 2015090562 W CN2015090562 W CN 2015090562W WO 2017049533 A1 WO2017049533 A1 WO 2017049533A1
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Prior art keywords
channel state
time
state information
reporting
reporting time
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PCT/CN2015/090562
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English (en)
French (fr)
Inventor
郑娟
官磊
成艳
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华为技术有限公司
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Priority to CN201580083303.7A priority Critical patent/CN108028720B/zh
Priority to PCT/CN2015/090562 priority patent/WO2017049533A1/zh
Publication of WO2017049533A1 publication Critical patent/WO2017049533A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, a communication device, and a system for updating a channel state information time.
  • the spectrum is the basis of wireless communications.
  • the unlicensed band also known as unlicensed spectrum
  • the licensed band licensed spectrum
  • LAA-LTE Long Term Evolution
  • LAA-LTE systems use unlicensed band resources, they need to comply with local regulations on the use of unlicensed bands.
  • Listening to Talk is a coexistence strategy between systems.
  • the characteristics of LBT are: Before each communication device sends a signal on a certain channel, it needs to detect whether the current channel is idle. If so, the communication device can send Signal, if not, the communication device is currently unable to transmit signals, therefore, based on the LBT rule, data transmission of the LTE device in the unlicensed band is opportunistic.
  • the base station can determine the channel state of the UE when the data communication between the base station and the UE is performed according to the Channel State Information (CSI) measured by the UE, and according to the CSI.
  • CSI Channel State Information
  • MCS Modulation Coding Scheme
  • CSI For periodic reporting CSI (including Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI), and Rank Indicator (RI)), data transmission in the unlicensed band is an opportunity.
  • CQI Channel Quality Indicator
  • PMI Precoding Matrix Indicator
  • RI Rank Indicator
  • sexuality taking RI as an example, there may be a case where the reference resource of the RI is located far from the time when the RI is reported, in which case, if The RI reporting time is reported to the RI, and the channel state condition reflected by the reported channel state information may be different from the current channel state condition experienced by the UE, thereby affecting data transmission reliability and data transmission efficiency between the base station and the UE.
  • Embodiments of the present invention provide a method, a communication device, and a system for updating a channel state information time, which are used for ensuring reliability of data transmission and data transmission efficiency.
  • a first aspect of the embodiments of the present invention provides a method for updating a time of a channel state information, including:
  • the reporting time of the first channel state information is updated from the first reporting time to the second reporting time;
  • the preset condition is that the time range between the time when the first reference resource is located and the first reporting time is greater than or equal to a time threshold, and between the first reporting time and the second reporting time There is a reference resource different from the first reference resource, and a time range between the first reporting time and the second reporting time is less than the time threshold.
  • the method further includes:
  • the first channel state information is reported at the first reporting time.
  • the second reporting time is an original corresponding to the second channel state information Configure the reporting time.
  • the second channel state information is prioritized to the first channel state information Channel status information.
  • the moment that the first reference resource is located and the second channel The time at which the second reference resource corresponding to the status information is located is different.
  • the method further includes: reporting the first channel state information and the second channel state information at the second reporting time; Or reporting the first channel state information at the second reporting time.
  • the method further includes:
  • the third reporting time is a reporting time of channel state information of the adjacent second reporting time after the second reporting time; or
  • the third reporting time is the original configuration reporting time of the third channel state information, and the third channel state information is channel state information of the same type of one adjacent cycle after the second channel state information.
  • the reference resource is located in the serving cell of the communications device Within the time period during which data is transmitted on the unlicensed band;
  • the reference resource includes a reference signal for measuring channel state information
  • the reference signal includes at least any one of the following: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS, and a discovery reference signal. DRS.
  • a second aspect of the embodiments of the present invention provides a communications device, including:
  • a determining unit configured to determine a first reporting time of the first channel state information and a first reference resource corresponding to the first channel state information
  • an updating unit configured to: when the determining unit determines that the obtained time of the first reference resource meets the preset condition, update the reporting time of the first channel state information from the first reporting time to the second Reporting time;
  • the preset condition is that the time range between the time when the first reference resource is located and the first reporting time is greater than or equal to a time threshold, the first reporting time and the second reporting time There is a reference resource different from the first reference resource, and a time range between the first reporting time and the second reporting time is less than the time threshold.
  • the communications device further includes:
  • the reporting unit is configured to report the first channel state information at the first reporting time.
  • the second reporting time is an original corresponding to the second channel state information Configure the reporting time.
  • the second channel state information is prioritized to the first channel state information Channel status information.
  • the moment that the first reference resource is located and the second channel The time at which the second reference resource corresponding to the status information is located is different.
  • the reporting unit is further used And reporting, by the second reporting time, the first channel state information and the second channel state information; or reporting the first channel state information at the second reporting time.
  • the reporting unit is further configured to report the second channel at a third reporting time Status information; the third reporting time is a reporting time of channel state information of the adjacent second reporting time after the second reporting time; or the third reporting time is the original of the third channel state information And configuring the reporting time, the third channel state information is channel state information of the same type of one adjacent cycle after the second channel state information.
  • the reference resource is located in the serving cell of the communications device And a reference signal for measuring channel state information, where the reference signal includes at least one of the following: a cell common reference signal CRS, a signal state information reference signal CSI -RS, demodulation reference signal DMRS and discovery parameters Test signal DRS.
  • a third aspect of the embodiments of the present invention provides a communications device, including:
  • processor performs the following steps by calling code or instructions in the memory:
  • the reporting time of the first channel state information is updated from the first reporting time to the second reporting time;
  • the preset condition is that the time range between the time when the first reference resource is located and the first reporting time is greater than or equal to a time threshold, and between the first reporting time and the second reporting time There is a reference resource different from the first reference resource, and a time range between the first reporting time and the second reporting time is less than the time threshold.
  • the processor is further configured to:
  • the first channel state information is reported at the first reporting time.
  • the second reporting time is an original corresponding to the second channel state information. Configure the reporting time.
  • the second channel state information is prioritized to the first channel state information Channel status information.
  • the moment that the first reference resource is located and the second channel The time at which the second reference resource corresponding to the status information is located is different.
  • the processor is further configured to:
  • the processor is further configured to:
  • the third reporting time is a reporting time of channel state information of the adjacent second reporting time after the second reporting time; or
  • the third reporting time is the original configuration reporting time of the third channel state information, and the third channel state information is channel state information of the same type of one adjacent cycle after the second channel state information.
  • the reference resource is located in the serving cell of the communication device Within the time period during which data is transmitted on the unlicensed band;
  • the reference resource includes a reference signal for measuring channel state information
  • the reference signal includes at least any one of the following: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS, and a discovery reference signal. DRS.
  • a third aspect of the embodiments of the present invention provides a communication system, including:
  • the base station is configured to send channel state parameter information to the communications device, where the channel state parameter information includes parameter information used to determine a reporting time of reporting channel state information;
  • the communication device is configured to receive, by the communication device, channel state parameter information, and determine, according to the channel state parameter information, a first reporting time corresponding to the first channel state information and a first reference resource corresponding to the first reporting time When the time at which the first reference resource is located meets the preset condition, the reporting time of the first channel state information is updated from the first reporting time to the second reporting time;
  • the preset condition is that the time range between the time when the first reference resource is located and the first reporting time is greater than or equal to a time threshold, and between the first reporting time and the second reporting time There is a reference resource different from the first reference resource, and a time range between the first reporting time and the second reporting time is less than the time threshold.
  • the communications device determines, after the first reporting time corresponding to the first channel state information, according to the channel state parameter information,
  • the communication device is further configured to report the first channel state information at the first reporting time;
  • the base station is further configured to receive the first channel state information reported by the communications device at a first reporting time.
  • the second reporting time is an original corresponding to the second channel state information Configure the reporting time.
  • the second channel state information is prioritized to the first channel state information Channel status information.
  • the moment that the first reference resource is located and the second channel The time at which the second reference resource corresponding to the status information is located is different.
  • the communication device After the reporting time of the channel state information is updated from the first reporting time to the second reporting time, the communication device is further configured to report the first channel state information and the second at the second reporting time Channel state information; or reporting the first channel state information at the second reporting time.
  • the communications device reports the first channel state information at the second reporting time
  • the communication device is further configured to: report the second channel state information at a third reporting time; the third reporting time is a channel state of the adjacent second reporting time after the second reporting time The reporting time of the information; or the third reporting time is the original configuration reporting time of the third channel state information, and the third channel state information is a channel of the same type of the adjacent channel after the second channel state information status information.
  • the reference resource is located in the serving cell of the communication device Within the time period during which data is transmitted on the frequency band;
  • the reference resource includes a reference signal for measuring channel state information, and the reference signal includes at least one of the following: a cell common reference signal CRS, and a signal state information reference signal.
  • CSI-RS demodulation reference signal DMRS
  • DRS discovery reference signal
  • the reporting time of the first channel state information is updated from the first reporting time to the second reporting time. time. Since the reference resource different from the first reference resource exists between the first reporting time and the second reporting time, and the time range between the first reporting time and the second reporting time is less than a time threshold, The time range between the time when the reference resource of the first reference resource is located and the second reporting time is necessarily smaller than the time threshold, so that the channel state reported by the UE at the updated reporting time is close to the channel state of the UE, thereby ensuring The accuracy of the channel state information CSI received by the base station ensures data transmission reliability and data transmission efficiency between the base station and the UE.
  • FIG. 1 is a schematic diagram of a network architecture disclosed in an embodiment of the present invention.
  • FIG. 2a is a flowchart of a first embodiment of a method for updating a time of reporting channel state information according to an embodiment of the present invention
  • 2b is a schematic diagram of data transmission of an unlicensed band according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a second embodiment of a method for updating a time of reporting channel state information according to an embodiment of the present disclosure
  • FIG. 4 is a flowchart of a third embodiment of a method for updating a channel state information time according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a first embodiment of a communication device according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a second embodiment of a communication device according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • Embodiments of the present invention provide a method, a communication device, and a system for updating a channel state information time, which are used for ensuring reliability of data transmission and data transmission efficiency.
  • FIG. 1 is a schematic diagram of a network architecture disclosed in an embodiment of the present invention.
  • the network architecture of the embodiment of the present invention may include a UE and a base station.
  • the network architecture is used in wireless communication systems, especially for LTE systems that are licensed for band-assisted access (ie, LAA-LTE systems).
  • LAA-LTE systems refers to an LTE system in which a licensed band and an unlicensed band are used together by Carrier Aggregation (CA) or non-CA.
  • CA Carrier Aggregation
  • non-CA Carrier Aggregation
  • the mainstream deployment scenario is a scenario in which a licensed band and an unlicensed band are jointly used by a carrier aggregation CA, that is, a carrier included in a licensed band or a licensed band or a cell operating on a licensed band is used as a primary cell, and an unlicensed band or license-free is provided.
  • the carrier included in the frequency band or the cell working in the unlicensed frequency band is used as the secondary cell.
  • the primary cell and the secondary cell may be deployed in a common station or a non-common station, and an ideal backhaul path exists between the two cells.
  • the network architecture is not limited to the scenario of the foregoing CA, and can also be applied to other deployment scenarios, such as a scenario in which there is no ideal backhaul path between two cells (the primary cell and the secondary cell), or the backhaul delay is large, resulting in Scenes where information cannot be quickly coordinated between two cells, and so on.
  • the communication device in the embodiment of the present invention may be a relay node between the UE and the base station or a UE, and the UE may be a mobile phone or a tablet computer.
  • the communication device of the embodiment of the present invention is described in detail with respect to the UE, which is a notebook computer, a palmtop computer, a mobile internet device (MID), or other device that can support network interaction.
  • MID mobile internet device
  • the cell may be a cell corresponding to the base station, and the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell, where the small cell may include: a metro cell, a micro cell, and a pico A cell (Pico cell), a femto cell, etc., which have the characteristics of small coverage and low transmission power, and are suitable for providing a high-speed data transmission service.
  • the small cell may include: a metro cell, a micro cell, and a pico A cell (Pico cell), a femto cell, etc., which have the characteristics of small coverage and low transmission power, and are suitable for providing a high-speed data transmission service.
  • a carrier in an LTE system multiple cells can work at the same frequency at the same time.
  • the concept of a carrier and a cell in an LTE system can be considered to be equivalent.
  • the carrier index of the secondary carrier and the cell identifier (Cell ID) of the secondary cell working in the secondary carrier are carried in the same manner.
  • the carrier is equivalent to the concept of a cell, for example, the UE accessing one carrier and accessing one cell are equivalent. In the present invention, the concept of a cell will be introduced.
  • An embodiment of the method for updating the timing of channel state information is reported by the present invention.
  • An update method for reporting a channel state information time determining a first reporting time of the first channel state information and a first reference resource corresponding to the first channel state information; and when the time of the first reference resource is met And the preset condition is that the time when the first reference resource is located and the time when the first reference resource is located is updated by the first reporting time
  • the time range between the first reporting time is greater than or equal to the time threshold, and the reference resource different from the first reference resource exists between the first reporting time and the second reporting time, and the first reporting time is The time range between the second reporting times is less than the time threshold.
  • FIG. 2 is a flowchart of a first embodiment of a method for updating a channel state information time according to an embodiment of the present invention.
  • an update method for reporting channel state information time according to an embodiment of the present invention may include steps S201 to S202:
  • the UE determines a first reporting time of the first channel state information and a first reference resource corresponding to the first channel state information.
  • the specific implementation manner of the UE determining the first reporting time corresponding to the first channel state information is: after the UE establishes a communication connection with the base station, the base station sends channel state parameter information to the UE, where the channel state parameter information is used. And including parameter information for determining a reporting time of the reported channel state information; the UE receiving the channel state parameter information sent by the base station, and according to the channel shape
  • the state parameter information includes parameter information for determining a reporting time of the reported channel state information, and determines a first reporting time corresponding to the first channel state information.
  • the base station may periodically send the channel state parameter information to the UE; or the base station may send the channel state parameter information to the UE after the preset time after the UE establishes the communication connection with the base station; or the base station may also be in the UE and the base station.
  • the channel state parameter information and the like are directly sent to the UE, and the present invention is not limited.
  • the channel state parameter information may include a reporting period and an offset in the reporting period, so that the UE can determine the reporting time of reporting the channel state information; if the UE is reporting the channel state information aperiodically
  • the channel state parameter information may include an uplink scheduling grant (Uplink Scheduling Grant).
  • the UE may determine the relationship between the sending time and the reporting time according to the predefined uplink scheduling grant, and determine the channel status information to be reported.
  • the reporting time for example, for the LTE system, the uplink scheduling grant transmission time and the reporting time are all represented by subframes, and the relationship between the predefined uplink scheduling grant transmission time and the reporting time may be 4 milliseconds.
  • the foregoing first channel state information may be, for example, a rank indication RI, a wideband channel quality indication CQI, or a wideband precoding matrix indication PMI, or may be a narrowband CQI or a narrowband PMI.
  • the first channel state information in the embodiment of the present invention is described by taking the rank indication RI as an example.
  • the UE determines that the first reference resource corresponding to the first channel state information is: the UE determines, according to the first reporting time of the first channel state information, the first channel state information.
  • First reference resource Specifically, the current 3rd Generation Partnership Project (3GPP) protocol defines the reference resources used to measure CSI.
  • the reference resource includes a time domain resource and a frequency domain resource, and the time domain resource is generally represented by a time domain resource corresponding to a time unit in which the reference resource is located, and the time unit may be a radio frame, a subframe, a time slot, and an OFDM symbol.
  • the time domain resource corresponding to the time unit may be a time domain resource included in the radio frame, a time domain resource included in the subframe, a time domain resource included in the time slot, and a time domain resource included in the OFDM symbol;
  • the frequency domain resource represents all frequency resources or partial frequency resources included in the above time unit.
  • the time domain resource included in the reference resource is mainly discussed, and the frequency domain resource included in the reference resource is not specifically limited.
  • the time domain resource included in the reference resource may be generally represented by an index number of a time unit in which the time domain resource is located.
  • the subframe index of the subframe in which the CSI reference resource should be reported at the time is nm, where m satisfies the following condition: m is greater than or equal to 4 and makes the subframe nm the smallest integer value of the available downlink subframe or special subframe.
  • the special subframe is a subframe format used in a Time Division Duplexing (TDD) system, and includes a Downlink Pilot Time Slot (DwPTS) and an Uplink Pilot Time Slot in a special subframe ( Uplink Pilot Time Slot, UpPTS) and Guard Period (GP).
  • the reference resource for measuring the CSI may be defined as a sub-timely before the CSI reporting time and within the time of the CSI reporting time and located within the on-duration.
  • the on-duration is a period of time during which a base station serving the user equipment preempts the unlicensed band resource and transmits data on the unlicensed band. Therefore, the first reference resource is a subframe that is 4 ms before the first reporting time and is closest to the first reporting time and is located within the on-duration. It should be noted that, in the embodiment of the present invention, the subframe index may be represented by a number in one radio frame.
  • the subframe index in one radio frame may be represented by k.
  • k is any integer from 0 to 9, in which case, if the above mentioned nm is less than 0, it means that the subframe corresponding to nm is before the radio frame in which subframe n is located, and if nm is greater than 9, Then, the subframe corresponding to nm is after the radio frame where the subframe n is located; on the other hand, the subframe index can also be used.
  • nf represents the radio frame index number, which may be any integer in 0-1023
  • ns represents the slot index number, which may be any integer from 0-19. Indicates rounding down x, and "/" means dividing operator.
  • the reference resource in the embodiment of the present invention is located in a time period in which the serving cell of the UE sends data on the unlicensed frequency band; the reference resource includes a reference signal for measuring channel state information, that is, a reference signal distribution of the measured channel state information.
  • the reference signal includes at least one of the following: a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), and a demodulation reference signal. (Demodulation Reference Signal, DMRS) and Discovery Reference Signal (DRS), wherein the CSI-RS may also include Non Zero Power (NZP) CSI-RS, CSI-IM (CSI-interference measurement) .
  • CRS cell-specific reference signal
  • CSI-RS channel state information reference signal
  • DRS Discovery Reference Signal
  • NZP Non Zero Power
  • CSI-IM CSI-interference measurement
  • the UE updates the reporting time of the first channel state information from the first reporting time to the second reporting time, where the The preset condition is that the time range between the time when the first reference resource is located and the first reporting time is greater than or equal to a time threshold, and the first reporting time and the second reporting time are stored.
  • the time range between the first reporting time and the second reporting time is smaller than the time threshold in the reference resource different from the first reference resource.
  • the preset condition is that a time range between a time when the first reference resource is located and the first reported time is greater than or equal to a time threshold.
  • the UE updates the reporting time of the first channel state information from the first reporting time to the second reporting time.
  • the invalid reference resource refers to that if the UE calculates channel state information according to the invalid reference resource, the calculated channel state information cannot reflect the channel state experienced by the UE when receiving the data service of the serving cell.
  • a representation of the invalid reference resource for example, according to the manner defined by the existing protocol, as described in the specific step of determining the reference resource in the foregoing step S201, and details are not described herein again, if the determined reference resource is not preempted in the serving cell.
  • the determined reference resource may be considered as an invalid reference resource because, since the serving cell needs to transmit data in the unlicensed band.
  • the usability of the unlicensed band is determined by a listening mechanism such as LBT, and once the serving cell performs data transmission in the unlicensed band, within the time range of the data transmission, other cells except the serving cell only need to hear The serving cell is performing data transmission, and then remains silent during the time range in which the serving cell performs data, that is, no data is transmitted. Therefore, when the serving cell is in-duration and off-duration of the unlicensed band, the channel interference level experienced between the serving cell and the UE is different.
  • the preset condition may further include: the time when the first reference resource is located, the time period in which the serving cell of the UE does not send data on the unlicensed frequency band, or the serving cell is in the unlicensed band. There is no time period for preempting the channel usage opportunity.
  • the UE may not report any information at the first reporting time; or may report the special channel state information at the first reporting time to reflect that the reported channel state information is invalid, for example, the reported special channel state information may be out of Range(OOR).
  • the first time of reporting is updated to the second reporting time.
  • the manner in which the serving cell performs data transmission or the signal detection may be detected by means of energy detection or a combination of the two.
  • the signal sent by the serving cell is detected, and the method of energy detection means that the data energy of the serving cell reaching other cells exceeds a certain threshold, for example Power threshold.
  • the channel state information may include other information, such as the CQI, the PMI, and the RI, and may further include information that can be reflected when the serving cell and the UE communicate, and is not limited in the embodiment of the present invention.
  • the time threshold may be represented by at least one of the following: an integer number of subframes, an integer number of slots, an integer number of radio frames, and an integer number of OFDM symbols.
  • the time threshold is related to the stability of the channel state in which the UE is located. For example, the longest reporting period of the RI defined in the current 3GPP protocol, based on the consideration of the longest reporting period, can be considered that the reported RI is valid within the reporting period.
  • the first channel state information calculated based on the first reference resource may be considered as unavailable. Reflects the channel state experienced by the UE on the channel it is on.
  • the first time threshold and the second time threshold may be the standard protocol specifications; or the first time threshold and the second time threshold may also be carried in the channel state parameter information sent by the base station serving the UE to the UE. Or pre-configured.
  • the invention is not limited herein, and different first channel state information may correspond to different time thresholds.
  • FIG. 2b is a schematic diagram of data transmission of the unlicensed band.
  • the reference resource different from the first reference resource is preempted between the first reporting time and the second reporting time of the serving cell that should serve the UE.
  • the serving cell of the serving UE does not preempt the unlicensed band resource between the first reporting time and the second reporting time, it is obvious that the reference resource corresponding to the second channel state information is similar to the reference resource corresponding to the first channel state information. Therefore, the time range between the reference resource corresponding to the second reporting time and the second reporting time may also meet the foregoing preset condition.
  • the time range between the second reporting time and the second reporting time is less than the time threshold, and the first reporting time is updated to the second reporting time. That is, the time range between the first reporting time and the second reporting time is less than the time threshold. Therefore, the time range between the time when the reference resource of the first reference resource is located and the second reporting time is necessarily smaller than The time threshold.
  • the second reporting time is an original configuration corresponding to the second channel state information. Report the time.
  • the reporting time of the original configuration corresponding to the second channel state information is a reporting time for reporting the second channel state information determined by the UE according to the channel state parameter information sent by the base station.
  • the second channel state information is different from the first channel state information.
  • the first channel state information and the second channel state information may each include any one of an RI, a wideband CQI, a wideband PMI, a subband CQI, and a subband PMI.
  • RI and wideband CQI, wideband PMI indicate different channel state information
  • wideband CQI and wideband PMI indicate different channel state information.
  • subband CQI For subband CQI, if subbands corresponding to subband CQI are different, they are also considered to be different channel states.
  • the information, for the subband PMI is also considered to be different channel state information if the subbands corresponding to the subband PMI are different.
  • the second channel state information is channel state information that is prioritized by the first channel state information. That is, if the first channel state information is RI, since the second channel state information is channel state information that is lower than the first channel state information, the second channel state information may be a broadband CQI or a broadband.
  • At least one of the PMI, the narrowband CQI, and the narrowband PMI, the second channel state information in the embodiment of the present invention is described by taking the wideband CQI/PMI as an example, and the second reporting time is the original configuration reporting time corresponding to the broadband CQI/PMI, where The second reporting time is determined by the UE according to the parameter information of the channel state parameter information sent by the base station to the UE for determining the reporting time of the channel state information.
  • the time at which the first reference resource is located is different from the time at which the second reference resource corresponding to the second reporting time is located. That is to say, the time at which the original configuration reference resource corresponding to the RI is located is different from the time at which the original configuration reference resource corresponding to the broadband CQI/PMI is located.
  • the time at which the reference resource is located may be represented by a time unit in which the reference resource is located; or may be represented by an index number of the time unit, for example, when the time unit is represented by a subframe.
  • the index number of the time unit may be the subframe index number.
  • the time at which the reference resource is located is represented by a subframe in which the reference resource is located
  • the time at which the reference is located means that the subframes in which the reference frame is located are not the same. If the time at which the reference resource is located is represented by the OFDM symbol in which the reference resource is located, the time at which the above-mentioned reference is different means that the OFDM symbols are not the same.
  • the reporting time of the first channel state information is updated by the first reporting time For the second report time.
  • a reference resource different from the first reference resource exists between the first reporting time and the second reporting time, and a time between the first reporting time and the second reporting time.
  • the range is smaller than the time threshold. Therefore, the time range between the time when the reference resource of the first reference resource is located and the second reporting time is necessarily smaller than the time threshold, so that the UE reports the channel at the updated reporting time.
  • the state is close to the channel state experienced by the UE, thereby ensuring the accuracy of the channel state information CSI received by the base station, thereby ensuring data transmission reliability and data transmission efficiency between the base station and the UE.
  • the updating the method for reporting the channel state information time further includes: reporting the first channel state information at the first reporting time. That is, after the UE determines the first reporting time corresponding to the first channel state information, the UE reports the first channel state information at the first reporting time, regardless of whether the subsequent UE updates the first reporting time.
  • the method for updating the reporting channel state information time further includes: the UE is in the second And reporting, by the reporting time, the first channel state information and the second channel state information; or, the UE reporting the first channel state information at the second reporting time.
  • the method for updating the channel state information time includes: reporting the second channel state information at a third reporting time;
  • the third reporting time is a channel state information reporting time of the adjacent second reporting time after the second reporting time; or the third reporting time is a reporting time of the third channel state information
  • the first The three channel state information is channel state information of the same type of one adjacent cycle after the second channel state information.
  • FIG. 3 is a flowchart of a second embodiment of a method for updating a channel state information time according to an embodiment of the present invention.
  • an update method for reporting channel state information time according to an embodiment of the present invention may include steps S301 to S305:
  • the UE determines a first reporting time of the first channel state information and a first reference resource corresponding to the first channel state information.
  • the specific implementation manner of the UE determining the first reporting time corresponding to the first channel state information is: after the UE establishes a communication connection with the base station, the base station sends channel state parameter information to the UE, where the channel state parameter information is used. Including the reporting time for determining the channel status information The parameter information is obtained by the UE, and the UE receives the channel state parameter information sent by the base station, and determines the first reporting time corresponding to the first channel state information according to the parameter information that is used to determine the reporting time of the reported channel state information.
  • the base station may periodically send the channel state parameter information to the UE; or the base station may send the channel state parameter information to the UE after the preset time after the UE establishes the communication connection with the base station; or the base station may also be in the UE and the base station. After the communication connection is established, the channel state parameter information and the like are directly sent to the UE, and the present invention is not limited.
  • the channel state parameter information may include a reporting period and an offset in the reporting period, so that the UE can determine the reporting time of reporting the channel state information; if the UE is reporting the channel state information aperiodically
  • the channel state parameter information may include an uplink scheduling grant, and after receiving the uplink scheduling grant, the UE may determine the reporting time of the channel state information according to the relationship between the pre-defined uplink scheduling grant sending time and the reporting time, for example, In the LTE system, the uplink scheduling grant transmission time and the reporting time are all represented by subframes, and the relationship between the predefined uplink scheduling grant transmission time and the reporting time may be 4 milliseconds.
  • the foregoing first channel state information may be, for example, a rank indication RI, a wideband channel quality indication CQI, or a wideband precoding matrix indication PMI, or may be a narrowband CQI or a narrowband PMI.
  • the first channel state information in the embodiment of the present invention is described by taking the rank indication RI as an example.
  • the UE determines that the first reference resource corresponding to the first channel state information is: the UE determines, according to the first reporting time of the first channel state information, the first channel state information.
  • First reference resource Specifically, the current 3rd Generation Partnership Project 3GPP protocol defines the reference resources used to measure CSI.
  • the reference resource includes a time domain resource and a frequency domain resource, and the time domain resource is generally represented by a time domain resource corresponding to a time unit in which the reference resource is located, and the time unit may be a radio frame, a subframe, a time slot, and an OFDM symbol.
  • the time domain resource corresponding to the time unit may be a time domain resource included in the radio frame, a time domain resource included in the subframe, a time domain resource included in the time slot, and a time domain resource included in the OFDM symbol;
  • the frequency domain resource represents all frequency resources or partial frequency resources included in the above time unit.
  • the time domain resource included in the reference resource is mainly discussed, and the frequency domain resource included in the reference resource is not specifically limited.
  • the time domain resource included in the reference resource may be generally represented by an index number of a time unit in which the time domain resource is located.
  • the subframe index of the subframe in which the CSI reference resource should be reported at the time is nm, where m satisfies the following condition: m is greater than or equal to 4 and makes the subframe nm the smallest integer value of the available downlink subframe or special subframe.
  • the above special subframe is a subframe format adopted in the TDD system, and includes DwPTS, UpPTS, and GP in the special subframe.
  • the reference resource for measuring the CSI may be defined as a sub-timely before the CSI reporting time and within the time of the CSI reporting time and located within the on-duration.
  • the on-duration is a period of time during which a base station serving the user equipment preempts the unlicensed band resource and transmits data on the unlicensed band. Therefore, the first reference resource is a subframe that is 4 ms before the first reporting time and is closest to the first reporting time and is located within the on-duration. It should be noted that, in the embodiment of the present invention, the subframe index may be represented by a number in one radio frame.
  • the subframe index in one radio frame may be represented by k.
  • k is any integer from 0 to 9, in which case, if the above mentioned nm is less than 0, it means that the subframe corresponding to nm is before the radio frame in which subframe n is located, and if nm is greater than 9, Then, the subframe corresponding to nm is after the radio frame where the subframe n is located; on the other hand, the subframe index can also be used.
  • nf represents the radio frame index number, which may be any integer in 0-1023
  • ns represents the slot index number, which may be any integer from 0-19. Indicates rounding down x, and "/" means dividing operator.
  • the reference resource in the embodiment of the present invention is located in a time period in which the serving cell of the UE sends data on the unlicensed frequency band; the reference resource includes a reference signal for measuring channel state information, that is, a reference signal distribution of the measured channel state information.
  • the reference signal includes at least one of the following: a CRS, a CSI-RS, a DMRS, and a DRS, where the CSI-RS may further include, NZP-CSI-RS, CSI-IM.
  • the UE reports the first channel state information at the first reporting time.
  • the UE may not determine whether there is a new reference resource between the first reporting time and the second reporting time. If the first reporting time is updated to the second reporting time, the second reporting is performed in the following step S303.
  • the reference resource corresponding to the time is still not as close as possible to the channel state of the UE, that is, the time range between the time of the second reference resource and the second reporting time may also meet the above preset condition, that is, the first
  • the second reporting time may not be a suitable reporting time.
  • the UE reports the first channel state information at the first reporting time, so that the base station can use the first reporting.
  • the channel state information reported at the moment determines the channel state experienced by the UE, thereby avoiding the situation in which the channel state information is missing.
  • the UE updates the reporting time of the first channel state information from the first reporting time to the second reporting time, where the preset condition The time range between the time when the first reference resource is located and the time of the first report is greater than or equal to the time threshold, and the first report time and the second report time are different from the first The reference resource of the reference resource, the time range between the first reporting time and the second reporting time is less than the time threshold.
  • the preset condition is that a time range between a time when the first reference resource is located and the first reported time is greater than or equal to a time threshold.
  • the UE updates the reporting time of the first channel state information from the first reporting time to the second reporting time.
  • the invalid reference resource refers to that if the UE calculates channel state information according to the invalid reference resource, the calculated channel state information cannot reflect the channel state experienced by the UE when receiving the data service of the serving cell.
  • a representation of the invalid reference resource for example, according to the manner defined by the existing protocol, as described in the specific step of determining the reference resource in the foregoing step S301, and details are not described herein again, if the determined reference resource is not preempted in the serving cell.
  • the determined reference resource may be considered as an invalid reference resource because, since the serving cell needs to transmit data in the unlicensed band.
  • the usability of the unlicensed band is determined by a listening mechanism such as LBT, and once the serving cell performs data transmission in the unlicensed band, within the time range of the data transmission, other cells except the serving cell only need to hear The serving cell is performing data transmission, and then remains silent during the time range in which the serving cell performs data, that is, no data is transmitted. Therefore, when the serving cell is in-duration and off-duration of the unlicensed band, the channel interference level experienced between the serving cell and the UE is different.
  • the preset condition may further include: the time when the first reference resource is located, the time period in which the serving cell of the UE does not send data on the unlicensed frequency band, or the serving cell is in the unlicensed band. There is no time period for preempting the channel usage opportunity.
  • the UE may not report any information at the first reporting time; or may report the special channel state information at the first reporting time to reflect that the reported channel state information is invalid, for example, the reported special channel state information may be out of Range(OOR).
  • the first time of reporting is updated to the second reporting time.
  • the manner in which the serving cell performs data transmission or the signal detection may be detected by means of energy detection or a combination of the two.
  • the channel state information may include other information, such as the CQI, the PMI, and the RI, and may further include information that can be reflected when the serving cell and the UE communicate, and is not limited in the embodiment of the present invention.
  • the time threshold may be represented by at least one of the following: an integer number of subframes, an integer number of slots, an integer number of radio frames, and an integer number of OFDM symbols.
  • the time threshold is related to the stability of the channel state in which the UE is located. For example, the longest reporting period of the RI defined in the current 3GPP protocol, based on the consideration of the longest reporting period, can be considered that the reported RI is valid within the reporting period.
  • the first channel state information calculated based on the first reference resource may be considered as unavailable. Reflects the channel state experienced by the UE on the channel it is on.
  • the first time threshold and the second time threshold may be the standard protocol specifications; or the first time threshold and the second time threshold may also be carried in the channel state parameter information sent by the base station serving the UE to the UE. Or pre-configured.
  • the invention is not limited herein, and different first channel state information may correspond to different time thresholds.
  • FIG. 2b is a schematic diagram of data transmission of the unlicensed band.
  • the reference resource different from the first reference resource is preempted between the first reporting time and the second reporting time of the serving cell that should serve the UE.
  • the serving cell of the serving UE does not preempt the unlicensed band resource between the first reporting time and the second reporting time, it is obvious that the reference resource corresponding to the second channel state information is similar to the reference resource corresponding to the first channel state information. Therefore, the time range between the reference resource corresponding to the second reporting time and the second reporting time may also meet the foregoing preset condition.
  • the time range between the second reporting time and the second reporting time is less than the time threshold, and the first reporting time is updated to the second reporting time. That is, The time range between the first reporting time and the second reporting time is less than the time threshold. Therefore, the time range between the time when the reference resource of the first reference resource is located and the second reporting time is necessarily smaller than the time threshold. .
  • the second reporting time is an original configuration reporting time corresponding to the second channel state information.
  • the reporting time of the original configuration corresponding to the second channel state information is a reporting time for reporting the second channel state information determined by the UE according to the channel state parameter information sent by the base station.
  • the second channel state information is different from the first channel state information.
  • the first channel state information and the second channel state information may each include any one of an RI, a wideband CQI, a wideband PMI, a subband CQI, and a subband PMI.
  • RI and wideband CQI, wideband PMI indicate different channel state information
  • wideband CQI and wideband PMI indicate different channel state information.
  • subband CQI For subband CQI, if subbands corresponding to subband CQI are different, they are also considered to be different channel states.
  • the information, for the subband PMI is also considered to be different channel state information if the subbands corresponding to the subband PMI are different.
  • the second channel state information is channel state information that is prioritized by the first channel state information. That is, if the first channel state information is RI, since the second channel state information is channel state information that is lower than the first channel state information, the second channel state information may be a broadband CQI or a broadband.
  • At least one of the PMI, the narrowband CQI, and the narrowband PMI, the second channel state information in the embodiment of the present invention is described by taking the wideband CQI/PMI as an example, and the second reporting time is the original configuration reporting time corresponding to the broadband CQI/PMI, where The second reporting time is determined by the UE according to the parameter information of the channel state parameter information sent by the base station to the UE for determining the reporting time of the channel state information.
  • the time at which the first reference resource is located is different from the time at which the second reference resource corresponding to the second reporting time is located. That is to say, the time at which the original configuration reference resource corresponding to the RI is located is different from the time at which the original configuration reference resource corresponding to the broadband CQI/PMI is located.
  • the time at which the reference resource is located may be represented by a time unit in which the reference resource is located; or may be represented by an index number of the time unit, for example, when the time unit is represented by a subframe.
  • the index number of the time unit may be the subframe index number.
  • the time at which the reference resource is located is represented by a subframe in which the reference resource is located
  • the time at which the reference is located means that the subframes in which the reference frame is located are not the same. If the time at which the reference resource is located is represented by the OFDM symbol in which the reference resource is located, the time at which the above-mentioned reference is different means that the OFDM symbols are not the same.
  • the UE reports the first channel state information at the second reporting time.
  • the UE reports the first channel state information at the second reporting time. That is to say, the UE only reports the RI at the reporting time of the wideband CQI/PMI, and does not report the broadband CQI/PMI.
  • the UE may report the second channel state information by reporting the first channel state information at the second reporting time. That is to say, the UE reports the RI and the wideband CQI/PMI simultaneously at the reporting time of the wideband CQI/PMI.
  • the UE reports the second channel state information at a third reporting time.
  • the third reporting time may be a reporting time of the channel state information of the second reporting time after the second reporting time. That is, the reporting time corresponding to the periodically reported channel state information is postponed, for example, the UE supports RI reporting, wideband CQI/PMI, and sub-band CQI/PMI reporting, and the UE needs to report channel state information of two sub-bands, then the UE
  • the sequence of reporting is as follows: the RI is reported at the reporting time of the wideband CQI/PMI, the broadband CQI/PMI is reported at the reporting time of the first sub-band CQI/PMI, and the first sub-report is reported at the reporting time of the second sub-band CQI/PMI With CQI/PMI and so on.
  • the third reporting time is an original configuration reporting time of the third channel state information
  • the third channel state information is channel state information of the same adjacent cycle type after the second channel state information.
  • the second channel state information is the broadband CQI
  • the second reporting time is the reporting time of reporting the wideband CQI
  • the third reporting time is the reporting time of the next reporting broadband CQI after the second reporting time. That is, the UE discards the second channel state information at the second reporting time, and does not report the second state information by using the subsequent reporting time, but reports the second channel state information at the time of reporting the next second channel state information.
  • the UE supports RI reporting, wideband CQI/PMI, and subband CQI/PMI reporting, and the UE needs to report channel state information of two subbands, the first channel state information is RI, and the second channel state information is broadband CQI/PMI, then
  • the sequence of reporting by the UE is: reporting the RI at the reporting time of the broadband CQI/PMI, reporting the first sub-band CQI/PMI at the reporting time of the first sub-band CQI/PMI, and reporting the reporting time in the second sub-band CQI/PMI
  • the second sub-band CQI/PMI is reported, and the broadband CQI/PMI is reported at the time of reporting the wideband CQI/PMI.
  • the reporting time of the first channel state information is updated by the first reporting time For the second report time. Due to the difference between the first reporting time and the second reporting time a reference resource of the first reference resource, and a time range between the first reporting time and the second reporting time is less than the time threshold, and therefore, a time difference from the reference resource of the first reference resource The time range between the two reporting times is inevitably smaller than the time threshold, so that the channel state reported by the UE at the updated reporting time is close to the channel state of the UE, thereby ensuring the accuracy of the channel state information CSI received by the base station, thereby ensuring Data transmission reliability and data transmission efficiency between the base station and the UE.
  • FIG. 4 is a flowchart of a third embodiment of a method for updating a channel state information time according to an embodiment of the present invention.
  • an update method for reporting channel state information time according to an embodiment of the present invention may include steps S401 to S410:
  • the base station sends channel state parameter information to the UE, where the channel state parameter information includes parameter information used to determine a reporting time of the channel state information.
  • the base station may periodically send the channel state parameter information to the UE; or the base station may send the channel state parameter information to the UE after the preset time after the UE establishes the communication connection with the base station; or, the base station may also After the UE establishes a communication connection with the base station, the channel state parameter information and the like are directly sent to the UE, which is not limited by the present invention.
  • the UE receives the channel state parameter information sent by the base station.
  • the UE determines, according to the channel state parameter information, a first reporting time of the first channel state information and a first reference resource corresponding to the first channel state information.
  • the specific implementation manner of the UE determining the first reporting time corresponding to the first channel state information is: after the UE establishes a communication connection with the base station, the base station sends channel state parameter information to the UE, where the channel state parameter information is used. And the parameter information for determining the reporting time of the reporting channel state information; the UE receiving the channel state parameter information sent by the base station, and determining, according to the channel state parameter information, parameter information for determining a reporting time of the reporting channel state information, determining the first The first reporting time corresponding to the channel state information.
  • the base station may periodically send the channel state parameter information to the UE; or the base station may send the channel state parameter information to the UE after the preset time after the UE establishes the communication connection with the base station; or the base station may also be in the UE and the base station. After the communication connection is established, the channel state parameter information and the like are directly sent to the UE, and the present invention is not limited. If the UE periodically reports channel status information, the channel status parameter information may include a reporting period and a reporting period.
  • the offset is such that the UE can determine the reporting time of the channel state information; if the UE is aperiodic reporting channel state information, the channel state parameter information may include an uplink scheduling grant, and after receiving the uplink scheduling grant, the UE may The pre-defined uplink scheduling grants a relationship between the sending time and the reporting time, and determines the reporting time of reporting the channel state information. For example, for the LTE system, the uplink scheduling grant sending time and the reporting time are all represented by subframes, then the predefined uplink is performed. The relationship between the scheduling grant transmission time and the reporting time may be 4 milliseconds.
  • the foregoing first channel state information may be, for example, a rank indication RI, a wideband channel quality indication CQI, or a wideband precoding matrix indication PMI, or may be a narrowband CQI or a narrowband PMI.
  • the first channel state information in the embodiment of the present invention is described by taking the rank indication RI as an example.
  • the UE determines that the first reference resource corresponding to the first channel state information is: the UE determines, according to the first reporting time of the first channel state information, the first channel state information.
  • First reference resource Specifically, the current 3rd Generation Partnership Project 3GPP protocol defines the reference resources used to measure CSI.
  • the reference resource includes a time domain resource and a frequency domain resource, and the time domain resource is generally represented by a time domain resource corresponding to a time unit in which the reference resource is located, and the time unit may be a radio frame, a subframe, a time slot, and an OFDM symbol.
  • the time domain resource corresponding to the time unit may be a time domain resource included in the radio frame, a time domain resource included in the subframe, a time domain resource included in the time slot, and a time domain resource included in the OFDM symbol;
  • the frequency domain resource represents all frequency resources or partial frequency resources included in the above time unit.
  • the time domain resource included in the reference resource is mainly discussed, and the frequency domain resource included in the reference resource is not specifically limited.
  • the time domain resource included in the reference resource may be generally represented by an index number of a time unit in which the time domain resource is located.
  • the subframe index of the subframe in which the CSI reference resource should be reported at the time is nm, where m satisfies the following condition: m is greater than or equal to 4 and makes the subframe nm the smallest integer value of the available downlink subframe or special subframe.
  • the above special subframe is a subframe format adopted in the TDD system, and includes DwPTS, UpPTS, and GP in the special subframe.
  • the reference resource for measuring the CSI may be defined as a sub-timely before the CSI reporting time and within the time of the CSI reporting time and located within the on-duration.
  • the on-duration is a period of time during which a base station serving the user equipment preempts the unlicensed band resource and transmits data on the unlicensed band. Therefore, the first reference resource is a subframe that is 4 ms before the first reporting time and is closest to the first reporting time and is located within the on-duration. It should be noted that, in the embodiment of the present invention, the subframe index may be represented by a number in one radio frame.
  • the subframe index in one radio frame may be represented by k.
  • k is any integer from 0 to 9, in which case, if the above mentioned nm is less than 0, it means that the subframe corresponding to nm is before the radio frame in which subframe n is located, and if nm is greater than 9, Then, the subframe corresponding to nm is after the radio frame where the subframe n is located; on the other hand, the subframe index can also be used.
  • nf represents the radio frame index number, which may be any integer in 0-1023
  • ns represents the slot index number, which may be any integer from 0-19. Indicates rounding down x, and "/" means dividing operator.
  • the reference resource in the embodiment of the present invention is located in a time period in which the serving cell of the UE sends data on the unlicensed frequency band; the reference resource includes a reference signal for measuring channel state information, that is, a reference signal distribution of the measured channel state information.
  • the reference signal includes at least one of the following: a CRS, a CSI-RS, a DMRS, and a DRS, where the CSI-RS may further include, NZP-CSI-RS, CSI-IM.
  • the UE reports the first channel state information at the first reporting time.
  • the UE may not determine whether there is a new reference resource between the first reporting time and the second reporting time in advance, and if the first reporting time is updated to the second reporting time, the second reporting is performed in the following step S406.
  • the reference resource corresponding to the time still meets the preset condition, that is, the time range between the time of the second reference resource and the second reporting time may also meet the foregoing preset condition, that is, the second reporting time may not be compared.
  • the appropriate reporting time at this time, in order to avoid the absence of the channel state information, the UE reports the first channel state information at the first reporting time, so that the base station can use the channel state information reported by the first reporting time.
  • the channel state experienced by the UE is determined, thereby avoiding the situation where the channel state information is missing.
  • the base station receives the first channel state information reported by the UE at a first reporting time.
  • the UE updates the reporting time of the first channel state information from the first reporting time to the second reporting time, where the pre- The time range between the time when the first reference resource is located and the time of the first report is greater than or equal to the time threshold, and the first report time and the second report time are different from the a reference resource of the first reference resource, the first reporting time and the second reporting time The time range between is less than the time threshold.
  • the preset condition is that a time range between a time when the first reference resource is located and the first reported time is greater than or equal to a time threshold.
  • the UE updates the reporting time of the first channel state information from the first reporting time to the second reporting time.
  • the invalid reference resource refers to that if the UE calculates channel state information according to the invalid reference resource, the calculated channel state information cannot reflect the channel state experienced by the UE when receiving the data service of the serving cell.
  • a representation of the invalid reference resource for example, according to the manner defined by the existing protocol, as described in the specific step of determining the reference resource in the foregoing step S401, and details are not described herein again, if the determined reference resource is not preempted in the serving cell.
  • the determined reference resource may be considered as an invalid reference resource because, since the serving cell needs to transmit data in the unlicensed band.
  • the usability of the unlicensed band is determined by a listening mechanism such as LBT, and once the serving cell performs data transmission in the unlicensed band, within the time range of the data transmission, other cells except the serving cell only need to hear The serving cell is performing data transmission, and then remains silent during the time range in which the serving cell performs data, that is, no data is transmitted. Therefore, when the serving cell is in-duration and off-duration of the unlicensed band, the channel interference level experienced between the serving cell and the UE is different.
  • the preset condition may further include: the time when the first reference resource is located, the time period in which the serving cell of the UE does not send data on the unlicensed frequency band, or the serving cell is in the unlicensed band. There is no time period for preempting the channel usage opportunity.
  • the UE may not report any information at the first reporting time; or may report the special channel state information at the first reporting time to reflect that the reported channel state information is invalid, for example, the reported special channel state information may be out of Range(OOR).
  • the first time of reporting is updated to the second reporting time.
  • the manner in which the serving cell performs data transmission or the signal detection may be detected by means of energy detection or a combination of the two.
  • the channel state information may include other information, such as the CQI, the PMI, and the RI, and may further include information that can be reflected when the serving cell and the UE communicate, and is not limited in the embodiment of the present invention.
  • the time threshold may be represented by at least one of the following: an integer number of subframes, an integer number of slots, an integer number of radio frames, and an integer number of OFDM symbols.
  • the time threshold is related to the stability of the channel state in which the UE is located. For example, the longest reporting period of the RI defined in the current 3GPP protocol, based on the consideration of the longest reporting period, can be considered that the reported RI is valid within the reporting period.
  • the first channel state information calculated based on the first reference resource may be considered as unavailable. Reflects the channel state experienced by the UE on the channel it is on.
  • the first time threshold and the second time threshold may be the standard protocol specifications; or the first time threshold and the second time threshold may also be carried in the channel state parameter information sent by the base station serving the UE to the UE. Or pre-configured.
  • the invention is not limited herein, and different first channel state information may correspond to different time thresholds.
  • FIG. 2b is a schematic diagram of data transmission of the unlicensed band.
  • the reference resource different from the first reference resource is preempted by the serving cell serving the UE between the first reporting time and the second reporting time. Unlicensed band resources. If the reference resource of the first reference resource is different from the reference resource of the first reference resource, the reference resource corresponding to the second channel state information is similar to the reference resource corresponding to the first channel state information, and therefore, The time range between the reference resource corresponding to the second reporting time and the second reporting time may also meet the above preset conditions.
  • the time range between the second reporting time and the second reporting time is less than the time threshold, and the first reporting time is updated to the second reporting time. That is, the time range between the first reporting time and the second reporting time is less than the time threshold. Therefore, the time range between the time when the reference resource of the first reference resource is located and the second reporting time is necessarily smaller than The time threshold.
  • the second reporting time is an original configuration reporting time corresponding to the second channel state information.
  • the reporting time of the original configuration corresponding to the second channel state information is a reporting time for reporting the second channel state information determined by the UE according to the channel state parameter information sent by the base station.
  • the second channel state information is different from the first channel state information.
  • the first channel state information and the second channel state information may each include any one of an RI, a wideband CQI, a wideband PMI, a subband CQI, and a subband PMI.
  • RI and wideband CQI, wideband PMI indicate different channel state information
  • wideband CQI and wideband PMI indicate different channel state information.
  • subband CQI For subband CQI, if subbands corresponding to subband CQI are different, they are also considered to be different channel states.
  • the information, for the subband PMI is also considered to be different channel state information if the subbands corresponding to the subband PMI are different.
  • the second channel state information is channel state information that is prioritized by the first channel state information. That is, if the first channel state information is RI, since the second channel state information is channel state information that is lower than the first channel state information, the second channel state information may be a broadband CQI or a broadband.
  • At least one of the PMI, the narrowband CQI, and the narrowband PMI, the second channel state information in the embodiment of the present invention is described by taking the wideband CQI/PMI as an example, and the second reporting time is the original configuration reporting time corresponding to the broadband CQI/PMI, where The second reporting time is determined by the UE according to the parameter information of the channel state parameter information sent by the base station to the UE for determining the reporting time of the channel state information.
  • the time at which the first reference resource is located is different from the time at which the second reference resource corresponding to the second reporting time is located. That is to say, the time at which the originally determined reference resource corresponding to the RI is located is different from the time at which the originally determined reference resource corresponding to the wideband CQI/PMI is located.
  • the time at which the reference resource is located may be represented by a time unit in which the reference resource is located; or may be represented by an index number of the time unit, for example, when the time unit is represented by a subframe.
  • the index number of the time unit may be the subframe index number.
  • the time at which the reference resource is located is represented by a subframe in which the reference resource is located
  • the time at which the reference is located means that the subframes in which the reference frame is located are not the same. If the time at which the reference resource is located is represented by the OFDM symbol in which the reference resource is located, the time at which the above-mentioned reference is different means that the OFDM symbols are not the same.
  • the UE reports the first channel state information at the second reporting time.
  • the UE reports the first channel state information at the second reporting time. That is to say, the UE only reports the RI at the reporting time of the wideband CQI/PMI, and does not report the broadband CQI/PMI.
  • the UE may report the second channel state information by reporting the first channel state information at the second reporting time. That is to say, the UE reports the RI and the wideband CQI/PMI simultaneously at the reporting time of the wideband CQI/PMI.
  • the base station receives the first channel state information reported by the UE at the second reporting time.
  • the UE reports the second channel state information at a third reporting time.
  • the third reporting time may be a reporting time of the channel state information of the second reporting time after the second reporting time. That is, the reporting time corresponding to the periodically reported channel state information is postponed, for example, the UE supports RI reporting, wideband CQI/PMI, and sub-band CQI/PMI reporting, and the UE needs to report channel state information of two sub-bands, then the UE
  • the sequence of reporting is as follows: the RI is reported at the reporting time of the wideband CQI/PMI, the broadband CQI/PMI is reported at the reporting time of the first sub-band CQI/PMI, and the first sub-report is reported at the reporting time of the second sub-band CQI/PMI With CQI/PMI and so on.
  • the third reporting time is an original configuration reporting time of the third channel state information
  • the third channel state information is channel state information of the same adjacent cycle type after the second channel state information.
  • the second channel state information is the broadband CQI
  • the second reporting time is the reporting time of reporting the wideband CQI
  • the third reporting time is the reporting time of the next reporting broadband CQI after the second reporting time. That is, the UE discards the second channel state information at the second reporting time, and does not report the second state information by using the subsequent reporting time, but reports the second channel state information at the time of reporting the next second channel state information.
  • the UE supports RI reporting, wideband CQI/PMI, and subband CQI/PMI reporting, and the UE needs to report channel state information of two subbands, the first channel state information is RI, and the second channel state information is broadband CQI/PMI, then
  • the sequence of reporting by the UE is: reporting the RI at the reporting time of the broadband CQI/PMI, reporting the first sub-band CQI/PMI at the reporting time of the first sub-band CQI/PMI, and reporting the reporting time in the second sub-band CQI/PMI
  • the second sub-band CQI/PMI is reported, and the broadband CQI/PMI is reported at the time of reporting the wideband CQI/PMI.
  • the base station receives the second channel state information reported by the UE at the third reporting time.
  • the reporting time of the first channel state information is updated by the first reporting time For the second report time.
  • a reference resource different from the first reference resource exists between the first reporting time and the second reporting time, and the time range between the first reporting time and the second reporting time is less than the time threshold, so When the reference resource of the first reference resource is located
  • the time range between the engraving and the second reporting time is inevitably smaller than the time threshold, so that the channel state reported by the UE at the updated reporting time is close to the channel state of the UE, thereby ensuring the accuracy of the channel state information CSI received by the base station. Therefore, data transmission reliability and data transmission efficiency between the base station and the UE are ensured.
  • an embodiment of the present invention further provides a communications device, which may include: a determining unit 501, an updating unit 502, where:
  • the determining unit 501 is configured to determine a first reporting time of the first channel state information and a first reference resource corresponding to the first channel state information.
  • the updating unit 502 is configured to: when the determining unit 501 determines that the obtained time of the first reference resource meets the preset condition, update the reporting time of the first channel state information by the first reporting time For the second reporting time;
  • the preset condition is that the time range between the time when the first reference resource is located and the first reporting time is greater than or equal to a time threshold, and between the first reporting time and the second reporting time There is a reference resource different from the first reference resource, and a time range between the first reporting time and the second reporting time is less than the time threshold.
  • the communications device shown in FIG. 5 further includes: a reporting unit, configured to report the first at the first reporting time Channel status information.
  • the second reporting time is an original configuration reporting time corresponding to the second channel state information.
  • the second channel state information is channel state information that is second to the first channel state information.
  • the time at which the first reference resource is located is different from the time at which the second reference resource corresponding to the second channel state information is located.
  • the reporting time of the first channel state information is determined by the first After the reporting time is updated to the second reporting time, the reporting unit is further configured to report the first channel state information and the second channel state information at the second reporting time; or, at the second reporting time The first channel state information is reported.
  • the reporting unit is further configured to report the second channel state information at a third reporting time; the third reporting The time is the reporting time of the channel state information of the adjacent second reporting time after the second reporting time; or the third reporting time is the original configuration reporting time of the third channel state information, the third The channel state information is channel state information of the same type of one adjacent cycle after the second channel state information.
  • the reference resource is located in a period in which the serving cell of the communications device sends data on the unlicensed band; wherein the reference resource includes a reference signal that measures channel state information, and the reference signal includes at least one of the following: The cell common reference signal CRS, the signal state information reference signal CSI-RS, the demodulation reference signal DMRS, and the discovery reference signal DRS.
  • the functions of the functional modules of the UE in this embodiment may be specifically implemented according to the method in the foregoing method embodiments.
  • Some or all of the functional modules in the communication device may be implemented by hardware circuits, and some or all of the functional modules in the communication device may also be implemented by a processor (such as a digital signal processor) by executing execution code or instructions.
  • the reporting time of the first channel state information is updated by the first reporting time For the second report time.
  • a reference resource different from the first reference resource exists between the first reporting time and the second reporting time, and the time range between the first reporting time and the second reporting time is less than the time threshold, so The time range between the time when the reference resource of the first reference resource is located and the second reporting time is necessarily smaller than the time threshold, so that the channel state reported by the UE at the updated reporting time is close to the channel state of the UE, thereby ensuring The accuracy of the channel state information CSI received by the base station ensures data transmission reliability and data transmission efficiency between the base station and the UE.
  • an embodiment of the present invention further provides a communication device, which may include: a processor 601 and a memory 602; wherein the processor 601 and the memory 602 are coupled by a bus 603.
  • the processor 601 can execute the following steps by calling code or instructions in the memory 601:
  • the reporting time of the first channel state information is updated from the first reporting time to the second reporting time;
  • the preset condition is that the time range between the time when the first reference resource is located and the first reporting time is greater than or equal to a time threshold, and between the first reporting time and the second reporting time There is a reference resource different from the first reference resource, and a time range between the first reporting time and the second reporting time is less than the time threshold.
  • the processor after determining the first reporting time corresponding to the first channel state information, the processor is further configured to:
  • the first channel state information is reported at the first reporting time.
  • the second reporting time is an original configuration reporting time corresponding to the second channel state information.
  • the second channel state information is channel state information that is second to the first channel state information.
  • the time at which the first reference resource is located is different from the time at which the second reference resource corresponding to the second channel state information is located.
  • the processor is further configured to:
  • the processor is further configured to:
  • the third reporting time is a reporting time of channel state information of the adjacent second reporting time after the second reporting time; or
  • the third reporting time is the original configuration reporting time of the third channel state information, and the third channel state information is channel state information of the same type of one adjacent cycle after the second channel state information.
  • the reference resource is located in a time period in which the serving cell of the communications device sends data on the unlicensed band
  • the reference resource includes a reference signal for measuring channel state information
  • the reference signal includes at least any one of the following: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS, and a discovery reference signal. DRS.
  • the functions of the functional modules of the communication device in this embodiment may be specifically implemented according to the method in the foregoing method embodiments.
  • Some or all of the functional modules in the communication device may be implemented by hardware circuits, and some or all of the functional modules in the communication device may also be implemented by a processor (such as a digital signal processor) by executing execution code or instructions.
  • the reporting time of the first channel state information is updated by the first reporting time For the second report time.
  • a reference resource different from the first reference resource exists between the first reporting time and the second reporting time, and the time range between the first reporting time and the second reporting time is less than the time threshold, so The time range between the time when the reference resource of the first reference resource is located and the second reporting time is necessarily smaller than the time threshold, so that the channel state reported by the UE at the updated reporting time is close to the channel state of the UE, thereby ensuring The accuracy of the channel state information CSI received by the base station ensures data transmission reliability and data transmission efficiency between the base station and the UE.
  • FIG. 7 is a structural diagram of a communication system according to an embodiment of the present invention.
  • the communication system includes a communication device and a base station, wherein:
  • the base station is configured to send channel state parameter information to the communications device, where the channel state parameter information includes parameter information used to determine a reporting time of reporting channel state information;
  • the communication device is configured to receive, by the communication device, channel state parameter information, and determine, according to the channel state parameter information, a first reporting time corresponding to the first channel state information and a first reference resource corresponding to the first reporting time When the time at which the first reference resource is located meets the preset condition, the reporting time of the first channel state information is updated from the first reporting time to the second reporting time;
  • the preset condition is that the time range between the time when the first reference resource is located and the first reporting time is greater than or equal to a time threshold, the first reporting time and the second reporting time There is a reference resource different from the first reference resource, and a time range between the first reporting time and the second reporting time is less than the time threshold.
  • the communication device determines, according to the channel state parameter information, a first reporting time corresponding to the first channel state information
  • the communication device is further configured to report the first channel state information at the first reporting time;
  • the base station is further configured to receive the first channel state information reported by the communications device at a first reporting time.
  • the second reporting time is an original configuration reporting time corresponding to the second channel state information.
  • the second channel state information is channel state information that is prioritized by the first channel state information.
  • the time at which the first reference resource is located is different from the time at which the second reference resource corresponding to the second channel state information is located.
  • the communication device after the communication device updates the reporting time of the first channel state information from the first reporting time to the second reporting time, the communication device is further configured to:
  • the communications device is further configured to:
  • the third reporting time is a reporting time of channel state information of the adjacent second reporting time after the second reporting time; or
  • the third reporting time is the original configuration reporting time of the third channel state information, and the third channel state information is channel state information of the same type of one adjacent cycle after the second channel state information.
  • the reference resource is located in a time period during which the serving cell of the communication device transmits data on the unlicensed band
  • the reference resource includes a reference signal for measuring channel state information
  • the reference signal includes at least any one of the following: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS, and a discovery reference signal. DRS.
  • the communication device and the base station included in the communication system of the embodiment may be according to the The method in the method embodiment is specifically implemented, and the specific implementation process may refer to the related description of the method embodiment, and details are not described herein again.
  • the reporting time of the first channel state information is updated by the first reporting time For the second report time. Since the reference resource different from the first reference resource exists between the first reporting time and the second reporting time, and the time range between the first reporting time and the second reporting time is less than a time threshold, The time range between the time when the reference resource of the first reference resource is located and the second reporting time is necessarily smaller than the time threshold, so that the channel state reported by the UE at the updated reporting time is close to the channel state of the UE, thereby ensuring The accuracy of the channel state information CSI received by the base station ensures data transmission reliability and data transmission efficiency between the base station and the UE.
  • the disclosed apparatus may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and the like. .

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Abstract

本发明公开了一种上报信道状态信息时刻的更新方法，包括：确定第一信道状态信息的第一上报时刻和所述第一信道状态信息对应的第一参考资源；当所述第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻；其中，所述预设条件为所述第一参考资源所在的时刻与所述第一上报时刻之间的时间范围大于或等于时间阈值，所述第一上报时刻与所述第二上报时刻之间存在不同于所述第一参考资源的参考资源，所述第一上报时刻与所述第二上报时刻之间的时间范围小于所述时间阈值。本发明实施例还提供了一种通信设备和***。采用本发明实施例可确保数据传输的可靠性以及数据传输效率。

Description

一种上报信道状态信息时刻的更新方法、通信设备及*** 技术领域
本发明涉及通信技术领域，尤其涉及一种上报信道状态信息时刻的更新方法、通信设备及***。
背景技术
频谱是无线通信的基础，根据最新发布的美国联邦通信委员会(Federal Communications Commission，FCC)国际频谱***，免许可频段(也称未授权(unlicensed)频谱)资源要大于许可频段(授权频谱)资源，因此，将长期演进(long term evolution，LTE)用户设备(User Equipment，UE)应用在免许可频段，例如，许可辅助接入长期演进(Licensed-Assisted Access Using Long Term Evolution，LAA-LTE)***，不仅可以有效利用免许可频段，还可以提供更为有效的无线接入、满足日益增长移动宽带服务需求。
LAA-LTE***使用免许可频段资源时，需要遵从各地对免许可频段使用制度的规范。
先听后说(Listen Before Talk，LBT)是***间的共存策略，LBT的特点为：每个通信设备在某个信道上发送信号之前，需要先检测当前信道是否空闲，若是，通信设备可发送信号，若否，通信设备当前无法发送信号，因此，基于LBT规则，LTE设备在免许可频段的数据传输是机会性的。为了确保数据传输的可靠性以及数据传输效率，基站可根据UE测量得到的信道状态信息(Channel State Information，CSI)，判断基站与UE之间进行数据通信时，UE历经的信道状态，并根据CSI选择合适的调整编码方案(Modulation Coding Scheme，MCS)，以匹配基站与UE之间的信道状态，因此，基站获取准确的CSI是保证基站和UE数据传输可靠性和数据传输效率的前提条件。
对于周期上报的CSI(包括信道质量指示(Channel Quality Indicator，CQI)、预编码矩阵指示(Precoding Matrix Indicator，PMI)以及秩指示(Rank Indicator，RI))，由于在免许可频段的数据传输是机会性的，以RI为例，可能会存在RI的参考资源所在的时刻与RI上报时刻相差较远的情况，在这种情况下，若在 RI上报时刻上报RI，上报的信道状态信息所反映的信道状态条件与UE经历的当前信道状态条件可能相差较大，进而影响基站和UE之间数据传输可靠性和数据传输效率。进一步地，在现有LTE***下，由于UE会用此RI作为后续宽带CQI/PMI以及窄带CQI/PMI计算的前提，因此还会导致一系列不准确的CSI信息上报，进而进一步影响基站和UE之间的数据传输可靠性和数据传输效率。
发明内容
本发明实施例提供一种上报信道状态信息时刻的更新方法、通信设备及***，用于确保数据传输的可靠性以及数据传输效率。
本发明实施例第一方面提供一种上报信道状态信息时刻的更新方法，包括：
确定第一信道状态信息的第一上报时刻和所述第一信道状态信息对应的第一参考资源；
当所述第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻；
其中，所述预设条件为所述第一参考资源所在的时刻与所述第一上报时刻之间的时间范围大于或等于时间阈值，所述第一上报时刻与所述第二上报时刻之间存在不同于所述第一参考资源的参考资源，所述第一上报时刻与所述第二上报时刻之间的时间范围小于所述时间阈值。
结合本发明实施例第一方面，在第一方面的第一种可能的实现方式中，所述确定第一信道状态信息对应的第一上报时刻之后，所述方法还包括：
在所述第一上报时刻，上报所述第一信道状态信息。
结合本发明实施例第一方面或第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述第二上报时刻为第二信道状态信息对应的原配置上报时刻。
结合本发明实施例第一方面的第二种可能的实现方式，在第一方面的第三种可能的实现方式中，所述第二信道状态信息为优先级次于所述第一信道状态信息的信道状态信息。
结合本发明实施例第一方面的第二种或第三种可能的实现方式，在第一方面的第四种可能的实现方式中，所述第一参考资源所在的时刻与所述第二信道状态信息对应的第二参考资源所在的时刻不同。
结合本发明实施例第一方面、第一方面的第一种至第四种任一种可能的实现方式，在第一方面的第五种可能的实现方式中，所述将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻之后，所述方法还包括：在所述第二上报时刻上报所述第一信道状态信息和所述第二信道状态信息；或者，在所述第二上报时刻上报所述第一信道状态信息。
结合本发明实施例第一方面的第五种可能的实现方式，在第一方面的第六种可能的实现方式中，所述在所述第二上报时刻上报所述第一信道状态信息之后，所述方法还包括：
在第三上报时刻上报所述第二信道状态信息；所述第三上报时刻为所述第二上报时刻之后的相邻所述第二上报时刻的信道状态信息的上报时刻；或者，所述第三上报时刻为第三信道状态信息的原配置上报时刻，所述第三信道状态信息为所述第二信道状态信息后一个相邻周期的类型相同的信道状态信息。
结合本发明实施例第一方面、第一方面的第一种至第六种任一种可能的实现方式，在第一方面的第七种可能的实现方式中，参考资源位于通信设备的服务小区在免许可频段上发送数据的时间段内；
其中，所述参考资源包括测量信道状态信息的参考信号，所述参考信号至少包括以下任意一种：小区公共参考信号CRS、信号状态信息参考信号CSI-RS、解调参考信号DMRS以及发现参考信号DRS。
本发明实施例第二方面提供一种通信设备，包括：
确定单元，用于确定第一信道状态信息的第一上报时刻和所述第一信道状态信息对应的第一参考资源；
更新单元，用于当所述确定单元确定得到的所述第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻；
其中，所述预设条件为所述第一参考资源所在的时刻与所述第一上报时刻之间的时间范围大于或等于时间阈值，所述第一上报时刻与所述第二上报时刻 之间存在不同于所述第一参考资源的参考资源，所述第一上报时刻与所述第二上报时刻之间的时间范围小于所述时间阈值。
结合本发明实施例第二方面，在第二方面的第一种可能的实现方式中，所述通信设备还包括：
上报单元，用于在所述第一上报时刻，上报所述第一信道状态信息。
结合本发明实施例第二方面或第二方面的第一种可能的实现方式，在第二方面的第二种可能的实现方式中，所述第二上报时刻为第二信道状态信息对应的原配置上报时刻。
结合本发明实施例第二方面的第二种可能的实现方式，在第二方面的第三种可能的实现方式中，所述第二信道状态信息为优先级次于所述第一信道状态信息的信道状态信息。
结合本发明实施例第二方面的第二种或第三种可能的实现方式，在第二方面的第四种可能的实现方式中，所述第一参考资源所在的时刻与所述第二信道状态信息对应的第二参考资源所在的时刻不同。
结合本发明实施例第二方面、第二方面的第一种至第四种任一种可能的实现方式，在第二方面的第五种可能的实现方式中，所述上报单元，还用于在所述第二上报时刻上报所述第一信道状态信息和所述第二信道状态信息；或者，在所述第二上报时刻上报所述第一信道状态信息。
结合本发明实施例第二方面的第五种可能的实现方式，在第二方面的第六种可能的实现方式中，所述上报单元，还用于在第三上报时刻上报所述第二信道状态信息；所述第三上报时刻为所述第二上报时刻之后的相邻所述第二上报时刻的信道状态信息的上报时刻；或者，所述第三上报时刻为第三信道状态信息的原配置上报时刻，所述第三信道状态信息为所述第二信道状态信息后一个相邻周期的类型相同的信道状态信息。
结合本发明实施例第二方面、第二方面的第一种至第六种任一种可能的实现方式，在第二方面的第七种可能的实现方式中，参考资源位于通信设备的服务小区在免许可频段上发送数据的时间段内；其中，所述参考资源包括测量信道状态信息的参考信号，所述参考信号至少包括以下任意一种：小区公共参考信号CRS、信号状态信息参考信号CSI-RS、解调参考信号DMRS以及发现参 考信号DRS。
本发明实施例第三方面提供一种通信设备，包括：
处理器和存储器；其中，所述处理器通过调用所述存储器中的代码或指令以执行如下步骤：
确定第一信道状态信息的第一上报时刻和所述第一信道状态信息对应的第一参考资源；
当所述第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻；
其中，所述预设条件为所述第一参考资源所在的时刻与所述第一上报时刻之间的时间范围大于或等于时间阈值，所述第一上报时刻与所述第二上报时刻之间存在不同于所述第一参考资源的参考资源，所述第一上报时刻与所述第二上报时刻之间的时间范围小于所述时间阈值。
结合本发明实施例第三方面，在第三方面的第一种可能的实现方式中，所述确定第一信道状态信息对应的第一上报时刻之后，所述处理器还用于：
在所述第一上报时刻，上报所述第一信道状态信息。
结合本发明实施例第三方面或第三方面的第一种可能的实现方式，在第三方面的第二种可能的实现方式中，所述第二上报时刻为第二信道状态信息对应的原配置上报时刻。
结合本发明实施例第三方面的第二种可能的实现方式，在第三方面的第三种可能的实现方式中，所述第二信道状态信息为优先级次于所述第一信道状态信息的信道状态信息。
结合本发明实施例第三方面的第二种或第三种可能的实现方式，在第三方面的第四种可能的实现方式中，所述第一参考资源所在的时刻与所述第二信道状态信息对应的第二参考资源所在的时刻不同。
结合本发明实施例第三方面、第三方面的第一种至第四种任一种可能的实现方式，在第三方面的第五种可能的实现方式中，所述将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻之后，所述处理器还用于：
在所述第二上报时刻上报所述第一信道状态信息和所述第二信道状态信 息；或者，在所述第二上报时刻上报所述第一信道状态信息。
结合本发明实施例第三方面的第五种可能的实现方式，在第三方面的第六种可能的实现方式中，所述在所述第二上报时刻上报所述第一信道状态信息之后，所述处理器还用于：
在第三上报时刻上报所述第二信道状态信息；所述第三上报时刻为所述第二上报时刻之后的相邻所述第二上报时刻的信道状态信息的上报时刻；或者，所述第三上报时刻为第三信道状态信息的原配置上报时刻，所述第三信道状态信息为所述第二信道状态信息后一个相邻周期的类型相同的信道状态信息。
结合本发明实施例第三方面、第三方面的第一种至第六种任一种可能的实现方式，在第三方面的第七种可能的实现方式中，参考资源位于通信设备的服务小区在免许可频段上发送数据的时间段内；
其中，所述参考资源包括测量信道状态信息的参考信号，所述参考信号至少包括以下任意一种：小区公共参考信号CRS、信号状态信息参考信号CSI-RS、解调参考信号DMRS以及发现参考信号DRS。
本发明实施例第三方面提供一种通信***，包括：
所述基站，用于向所述通信设备发送信道状态参数信息，所述信道状态参数信息包括用于确定上报信道状态信息的上报时刻的参数信息；
所述通信设备，用于接收所述通信设备发送信道状态参数信息；根据所述信道状态参数信息确定第一信道状态信息对应的第一上报时刻和所述第一上报时刻对应的第一参考资源；当所述第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻；
其中，所述预设条件为所述第一参考资源所在的时刻与所述第一上报时刻之间的时间范围大于或等于时间阈值，所述第一上报时刻与所述第二上报时刻之间存在不同于所述第一参考资源的参考资源，所述第一上报时刻与所述第二上报时刻之间的时间范围小于所述时间阈值。
结合本发明实施例第四方面，在第四方面的第一种可能的实现方式中，所述通信设备根据所述信道状态参数信息确定第一信道状态信息对应的第一上报时刻之后，
所述通信设备，还用于在所述第一上报时刻，上报所述第一信道状态信息；
所述基站，还用于在第一上报时刻接收所述通信设备上报的所述第一信道状态信息。
结合本发明实施例第四方面或第四方面的第一种可能的实现方式，在第四方面的第二种可能的实现方式中，所述第二上报时刻为第二信道状态信息对应的原配置上报时刻。
结合本发明实施例第四方面的第二种可能的实现方式，在第四方面的第三种可能的实现方式中，所述第二信道状态信息为优先级次于所述第一信道状态信息的信道状态信息。
结合本发明实施例第四方面的第二种或第三种可能的实现方式，在第四方面的第四种可能的实现方式中，所述第一参考资源所在的时刻与所述第二信道状态信息对应的第二参考资源所在的时刻不同。
结合本发明实施例第四方面、第四方面的第一种至第四种任一种可能的实现方式，在第四方面的第五种可能的实现方式中，所述通信设备将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻之后，所述通信设备还用于：在所述第二上报时刻上报所述第一信道状态信息和所述第二信道状态信息；或者，在所述第二上报时刻上报所述第一信道状态信息。
结合本发明实施例第四方面的第五种可能的实现方式，在第四方面的第六种可能的实现方式中，所述通信设备在所述第二上报时刻上报所述第一信道状态信息之后，所述通信设备还用于：在第三上报时刻上报所述第二信道状态信息；所述第三上报时刻为所述第二上报时刻之后的相邻所述第二上报时刻的信道状态信息的上报时刻；或者，所述第三上报时刻为第三信道状态信息的原配置上报时刻，所述第三信道状态信息为所述第二信道状态信息后一个相邻周期的类型相同的信道状态信息。
结合本发明实施例第四方面、第四方面的第一种至第六种可能的实现方式，在第四方面的第七种可能的实现方式中，参考资源位于通信设备的服务小区在免许可频段上发送数据的时间段内；
其中，所述参考资源包括测量信道状态信息的参考信号，所述参考信号至少包括以下任意一种：小区公共参考信号CRS、信号状态信息参考信号 CSI-RS、解调参考信号DMRS以及发现参考信号DRS。
实施本发明实施例，具有如下有益效果：
本发明实施例中，在第一信道状态信息对应的第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻。由于第一上报时刻与第二上报时刻之间存在不同于所述第一参考资源的参考资源，且第一上报时刻与第二上报时刻之间的时间范围小于时间阈值，因此，不同于所述第一参考资源的参考资源所在的时刻与第二上报时刻之间的时间范围必然小于所述时间阈值，这样使得UE在更新后的上报时刻上报的信道状态接近UE历经的信道状态，从而确保了基站接收到的信道状态信息CSI的准确性，故而确保基站和UE之间的数据传输可靠性以及数据传输效率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为是本发明实施例公开的一种网络构架示意图；
图2a为本发明实施例提供的上报信道状态信息时刻的更新方法的第一实施例流程图；
图2b为本发明实施例提供的免许可频段数据传输示意图；
图3为本发明实施例提供的上报信道状态信息时刻的更新方法的第二实施例流程图；
图4为本发明实施例提供的上报信道状态信息时刻的更新方法的第三实施例流程图；
图5为本发明实施例提供的通信设备的第一实施例结构示意图；
图6为本发明实施例提供的通信设备的第二实施例结构示意图；
图7为本发明实施例提供的通信***的结构示意图。
具体实施方式
本发明实施例提供一种上报信道状态信息时刻的更新方法、通信设备及***，用于确保数据传输的可靠性以及数据传输效率。
为了使本技术领域的人员更好地理解本发明方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分的实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
以下分别进行详细说明。
本发明的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、***、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
为了便于理解本发明实施例，下面先对本发明实施例的网络架构进行描述。请参阅图1，图1是本发明实施例公开的一种网络构架示意图。如图1所示，本发明实施例的网络构架可以包括UE和基站。该网络构架用于无线通信***，尤其用于许可频段辅助接入的LTE***(即LAA-LTE***)。LAA-LTE***是指将许可频段和免许可频段通过载波聚合(Carrier Aggregation，CA)或者非CA的方式在一起使用的LTE***。例如，主流部署场景是将许可频段和免许可频段通过载波聚合CA联合使用的场景，即将许可频段或许可频段包括的载波或工作在许可频段上的小区作为主小区，将免许可频段或免许可频段包括的载波或工作在免许可频段上的小区作为辅小区，其中主小区和辅小区可以共站部署，也可以是非共站部署，两个小区之间有理想的回传路径。该网络构架不限于上述CA的场景，同样也可以应用于其他部署场景，比如包括两个小区(主小区和辅小区)之间没有理想回传路径的场景，或是回传延迟较大，导致两个小区之间无法快速的协调信息的场景等等。本发明实施例所涉及的通信设备即可以为UE和基站间中继节点或者为UE中的任一种，UE可以为手机、平板电脑、 笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)或者其他可支持网络交互的设备，本发明实施例的通信设备以UE为准进行详细说明。上述小区可以是基站对应的小区，小区可以属于宏基站，也可以属于小小区(small cell)对应的基站，这里的小小区可以包括：城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。LTE***中的载波上可以同时有多个小区同频工作，在某些特殊场景下，也可以认为LTE***中的载波与小区的概念等同。例如在CA场景下，当为UE配置辅载波时，会同时携带辅载波的载波索引和工作在该辅载波的辅小区的小区标识(Cell Indentify，Cell ID)，在这种情况下，可以认为载波与小区的概念等同，比如UE接入一个载波和接入一个小区是等同的。本发明中将以小区的概念来介绍。
本发明上报信道状态信息时刻的更新方法的一个实施例。其中，一种上报信道状态信息时刻的更新方法：确定第一信道状态信息的第一上报时刻和所述第一信道状态信息对应的第一参考资源；当所述第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻；其中，所述预设条件为所述第一参考资源所在的时刻与所述第一上报时刻之间的时间范围大于或等于时间阈值，所述第一上报时刻与所述第二上报时刻之间存在不同于所述第一参考资源的参考资源，所述第一上报时刻与所述第二上报时刻之间的时间范围小于所述时间阈值。
请参见图2，图2为本发明实施例提供的一种上报信道状态信息时刻的更新方法的第一实施例流程图。其中，如图2所示，本发明的一个实施例提供的一种上报信道状态信息时刻的更新方法可以包括步骤S201～S202：
S201、UE确定第一信道状态信息的第一上报时刻和所述第一信道状态信息对应的第一参考资源。
本发明实施例中，UE确定第一信道状态信息对应的第一上报时刻的具体实施方式为：在UE与基站建立通信连接后，基站向UE发送信道状态参数信息，其中，上述信道状态参数信息包括用于确定上报信道状态信息的上报时刻的参数信息；UE接收基站发送的上述信道状态参数信息，并根据上述信道状 态参数信息包括用于确定上报信道状态信息的上报时刻的参数信息确定第一信道状态信息对应的第一上报时刻。其中，基站可以周期性的向UE发送信道状态参数信息；或者，基站也可以在UE与基站建立通信连接后的预设时间后向UE发送信道状态参数信息；或者，基站也可以在UE与基站建立通信连接后直接向UE发送信道状态参数信息等等，本发明不做限定。如果UE是周期性上报信道状态信息，上述信道状态参数信息可以包括上报周期和在上报周期内的偏移量，以便于UE可以确定上报信道状态信息的上报时刻；如果UE是非周期上报信道状态信息，上述信道状态参数信息可以包括上行调度准许(Uplink Scheduling Grant)，UE在接收到上行调度准许之后，可以根据预定义的上行调度准许发送时刻与上报时刻之间的关系，确定上报信道状态信息的上报时刻，例如针对LTE***，上行调度准许发送时刻和上报时刻都用子帧来表示，那么预定义的上行调度准许发送时刻与上报时刻之间的关系可以是4毫秒。其中，上述第一信道状态信息例如可以是秩指示RI、宽带信道质量指示CQI或宽带预编码矩阵指示PMI，也可以是窄带CQI或窄带PMI等等。本发明实施例第一信道状态信息以秩指示RI为例进行说明。
本发明实施例中，UE确定所述第一信道状态信息对应的第一参考资源的具体实施方式为：UE根据上述第一信道状态信息的第一上报时刻确定所述第一信道状态信息对应的第一参考资源。具体的，目前第三代合作伙伴项目(3rd Generation Partnership Project，3GPP)协议对测量CSI所使用的参考资源进行了定义。定义中，参考资源包括时域资源和频域资源，时域资源一般用参考资源所在的时间单元对应的时域资源来表示，所述时间单元可以是无线帧、子帧、时隙、OFDM符号中的任一种，相应地，时间单元对应的时域资源可以是无线帧包括的时域资源、子帧包括的时域资源、时隙包括的时域资源、OFDM符号包括的时域资源；频域资源表示在上述时间单元内，包括的全部频率资源或部分频率资源。在本发明实施例中，主要讨论参考资源包括的时域资源，对于参考资源包括的频域资源，不做具体限定。对于参考资源包括的时域资源，一般可以用时域资源所在的时间单元的索引号来表示，例如，针对周期上报的CSI，若周期上报CSI的时刻为子帧索引为n的子帧，则对应该上报时刻的CSI参考资源所在子帧的子帧索引为n-m，其中，m满足以下条件：m大于或等于 4且使得子帧n-m为可用的下行子帧或特殊子帧的最小整数值。上述特殊子帧是时分双工(Time Division Duplexing，TDD)***中采用的一种子帧格式，在特殊子帧内包括下行导频时隙(Downlink Pilot Time Slot，DwPTS)、上行导频时隙(Uplink Pilot Time Slot，UpPTS)和保护间隔(Guard Period，GP)。因此，为了保证LAA-LTE***下UE测量CSI的准确性，可以将测量CSI的参考资源，定义为距离该CSI上报时刻4ms之前，且距离该CSI上报时刻最近并位于on-duration之内的子帧，上述on-duration为服务该用户设备的基站抢占到该免许可频段资源且在该免许可频段上发送数据的时间段。因而，上述第一参考资源为距离上述第一上报时刻4ms之前，且距离第一上报时刻最近并位于on-duration之内的子帧。需要说明的是，在本发明实施例中，子帧索引可以用在一个无线帧内的编号来表示，例如一个无线帧包括10个子帧，那么在一个无线帧内的子帧索引可以用k表示，其中k为0至9中的任一整数，在这种情况下，如果上面提到的n-m小于0，则表示n-m对应的子帧在子帧n所在的无线帧之前，如果n-m大于9，则表示n-m对应的子帧在子帧n所在的无线帧之后；另一方面，子帧索引还可以用
Figure PCTCN2015090562-appb-000001
其中nf表示无线帧索引号，可以为0-1023中的任一整数，ns表示时隙索引号，可以为0-19中的任一整数，
Figure PCTCN2015090562-appb-000002
表示对x向下取整，“/”表示除法运算符。其中，本发明实施例中的参考资源位于所述UE的服务小区在免许可频段上发送数据的时间段内；上述参考资源包括测量信道状态信息的参考信号，即测量信道状态信息的参考信号分布在参考资源内，上述参考信号至少包括以下任意一种：小区公共参考信号(Cell-specific Reference Signal，CRS)、信号状态信息参考信号(Channel State Information Reference Signal，CSI-RS)、解调参考信号(Demodulation Reference Signal，DMRS)以及发现参考信号(Discovery Reference Signal，DRS)，其中，CSI-RS还可以包括非零功率(None Zero Power，NZP)CSI-RS、CSI-IM(CSI-interference measurement)。
S202、当所述第一参考资源所在的时刻满足预设条件时，所述UE将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻，其中，所述预设条件为所述第一参考资源所在的时刻与所述第一上报时刻之间的时间范围大于或等于时间阈值，所述第一上报时刻与所述第二上报时刻之间存 在不同于所述第一参考资源的参考资源，所述第一上报时刻与所述第二上报时刻之间的时间范围小于所述时间阈值。
其中，所述预设条件为所述第一参考资源所在的时刻与所述第一上报时刻之间的时间范围大于或等于时间阈值。或者，换句话说，当上述第一参考资源为无效的参考资源时，UE将上述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻。上述无效的参考资源是指，如果UE根据上述无效的参考资源计算信道状态信息，则计算得到的信道状态信息无法反映UE接收服务小区的数据服务时经历的信道状态。无效的参考资源的一种表现形式，例如，根据现有协议定义的方式，如上述步骤S201中确定参考资源的具体步骤所述，在此不再赘述，如果确定的参考资源位于服务小区没有抢占到免许可频段的时间范围内，即对应服务小区在免许可频段的off-duration，那么可以认为确定的参考资源为无效的参考资源，因为，由于服务小区在免许可频段进行数据传输之前，需要先通过侦听机制例如LBT确定免许可频段的可使用性，而且一旦服务小区在免许可频段进行数据传输，在此数据传输的时间范围之内，除服务小区之外的其他小区只要侦听到所述服务小区在进行数据传输，那么在所述服务小区进行数据的时间范围内，都会保持静默，即不发送任何数据。因此服务小区在免许可频段的on-duration与off-duration时，服务小区和UE之间经历的信道干扰水平不同，因此，认为如果第一参考资源所在的时刻位于服务小区的off-duration内，那么所述第一参考资源可以认为是无效的参考资源。也就是说，所述预设条件还可以包括，所述第一参考资源所在的时刻位于UE的服务小区在免许可频段上没有发送数据的时间段内，或者说所述服务小区在免许可频段没有抢占到信道使用机会的时间段内。此时，UE可以在第一上报时刻不上报任何信息；或者也可以在第一上报时刻上报特殊的信道状态信息，来反应上报的信道状态信息无效，例如上报的特殊信道状态信息可以是out of range(OOR)。同时，将上报第一时刻更新为第二上报时刻。
需要说明的是，在本发明实施例中，侦听到所述服务小区在进行数据传输，或者是通过信号检测的方式，也可以是通过能量检测的方式，或者是二者的结合。通过信号检测的方式，是指检测到所述服务小区发送的信号，通过能量检测的方式，是指所述服务小区到达其他小区的数据能量超过某一门限值，例如 功率门限值。
需要说明的是，在本发明实施例中，信道状态信息除了可以包括CQI、PMI、RI之外，还可以包括其他能够反映当服务小区和UE通信时的信息，在本发明实施例中不作限定。其中，上述时间阈值均可以用以下至少一项来表示：整数个子帧、整数个时隙、整数个无线帧、整数个OFDM符号。上述时间阈值与UE所在的信道状态平稳性有关，例如，目前3GPP协议中定义的RI的最长上报周期，基于最长上报周期的考虑，可以认为在上报周期范围内，上报的RI都是有效的，都可以支持CQI或PMI的计算。也就是说，当所述第一参考资源所在的时刻与所述第一上报时间之间的时间范围大于或等于时间阈值，可以认为基于所述第一参考资源计算得到的第一信道状态信息无法反映UE在所处信道上经历的信道状态。上述第一时间阈值和上述第二时间阈值可以是标准协议规范好的；或者，上述第一时间阈值和上述第二时间阈值也可以是服务UE的基站向UE发送的信道状态参数信息中携带的，或者是预配置的。在此本发明不做限定，不同的上述第一信道状态信息，可以对应不同的时间阈值。
其中，上述第一上报时刻与上述第二上报时刻之间存在不同于所述第一参考资源的参考资源。具体的，请参加图2b，图2b为免许可频段数据传输示意图，上述不同于所述第一参考资源的参考资源对应当服务UE的服务小区在第一上报时刻与第二上报时刻之间抢占到免许可频段资源时。如果服务UE的服务小区在第一上报时刻与第二上报时刻之间没有抢占到免许可频段资源时，那么显然，第二信道状态信息对应的参考资源与第一信道状态信息对应的参考资源相近，因此，第二上报时刻对应的参考资源与第二上报时刻之间的时间范围也有可能仍然符合上述预设条件。因此，为了确保基站接收到的信道状态信息CSI的准确性，在第一上报时刻与第二上报时刻之间存在不同于所述第一参考资源的参考资源的情况下，且上述第一上报时刻与上述第二上报时刻之间的时间范围小于所述时间阈值，将第一上报时刻更新为第二上报时刻。也就是说，第一上报时刻与第二上报时刻之间的时间范围小于时间阈值，因此，不同于所述第一参考资源的参考资源所在的时刻与第二上报时刻之间的时间范围必然小于所述时间阈值。
在一发明实施例中，上述第二上报时刻为第二信道状态信息对应的原配置 上报时刻。其中，第二信道状态信息对应的原配置的上报时刻为UE根据基站发送的信道状态参数信息确定的用于上报第二信道状态信息的上报时刻。上述第二信道状态信息与所述第一信道状态信息不同。第一信道状态信息与第二信道状态信息均可以包括RI、宽带CQI，宽带PMI，子带CQI、子带PMI中的任一项。例如RI和宽带CQI、宽带PMI表示不同的信道状态信息，宽带CQI和宽带PMI表示不同的信道状态信息，针对子带CQI，如果子带CQI对应的子带不同，那么也认为是不同的信道状态信息，针对子带PMI，如果子带PMI对应的子带不同，也认为是不同的信道状态信息。
在另一发明实施例中，上述第二信道状态信息为优先级次于所述第一信道状态信息的信道状态信息。也就是说，若上述第一信道状态信息为RI时，由于第二信道状态信息为优先级次于上述第一信道状态信息的信道状态信息，所以上述第二信道状态信息可以是宽带CQI、宽带PMI、窄带CQI、窄带PMI中的至少一个，本发明实施例第二信道状态信息以宽带CQI/PMI为例进行说明，进而上述第二上报时刻为宽带CQI/PMI对应的原配置上报时刻，其中，第二上报时刻为UE根据基站向UE发送的信道状态参数信息用于确定上报信道状态信息的上报时刻的参数信息确定的。
在另一发明实施例中，上述第一参考资源所在的时刻与上述第二上报时刻对应的第二参考资源所在的时刻不同。也就是说，RI对应的原配置参考资源所在的时刻与宽带CQI/PMI对应的原配置参考资源所在的时刻不同。需要说明的是，在本发明实施例中，上述参考资源所在的时刻可以用参考资源所在的时间单元来表示；或者，可以用时间单元的索引号来表示，例如当时间单元用子帧来表示时，时间单元的索引号可以是子帧索引号。相应地，若上述参考资源所在的时刻用参考资源所在的子帧来表示，则上述所在的时刻不同是指所在的子帧不是同一个。若上述参考资源所在的时刻用参考资源所在的OFDM符号来表示，则上述所在的时刻不同是指所在的OFDM符号不是同一个。
可以看出，本发明实施例中，在第一信道状态信息对应的第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻。由于第一上报时刻与第二上报时刻之间存在不同于所述第一参考资源的参考资源，且第一上报时刻与第二上报时刻之间的时间 范围小于所述时间阈值，因此，不同于所述第一参考资源的参考资源所在的时刻与第二上报时刻之间的时间范围必然小于时间阈值，这样使得UE在更新后的上报时刻上报的信道状态接近UE历经的信道状态，从而确保了基站接收到的信道状态信息CSI的准确性，故而确保基站和UE之间的数据传输可靠性以及数据传输效率。
可选的，在UE确定第一信道状态信息对应的第一上报时刻之后，上述上报信道状态信息时刻的更新方法还包括：在所述第一上报时刻，上报所述第一信道状态信息。也就是说，在UE确定第一信道状态信息对应的第一上报时刻之后，不管后续UE是否将第一上报时刻进行更新，UE都在第一上报时刻上报第一信道状态信息。
可选的，在UE将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻之后，上述上报信道状态信息时刻的更新方法还包括：UE在所述第二上报时刻上报所述第一信道状态信息和所述第二信道状态信息；或者，UE在所述第二上报时刻上报所述第一信道状态信息。
可选的，在UE在所述第二上报时刻上报所述第一信道状态信息之后，上述上报信道状态信息时刻的更新方法还包括：在第三上报时刻上报所述第二信道状态信息；所述第三上报时刻为所述第二上报时刻之后的相邻所述第二上报时刻的信道状态信息上报时刻；或者，所述第三上报时刻为第三信道状态信息的上报时刻，所述第三信道状态信息为所述第二信道状态信息后一个相邻周期的类型相同的信道状态信息。
请参见图3，图3为本发明实施例提供的一种上报信道状态信息时刻的更新方法的第二实施例流程图。其中，如图3所示，本发明的一个实施例提供的一种上报信道状态信息时刻的更新方法可以包括步骤S301～S305：
S301、UE确定第一信道状态信息的第一上报时刻和所述第一信道状态信息对应的第一参考资源。
本发明实施例中，UE确定第一信道状态信息对应的第一上报时刻的具体实施方式为：在UE与基站建立通信连接后，基站向UE发送信道状态参数信息，其中，上述信道状态参数信息包括用于确定上报信道状态信息的上报时刻 的参数信息；UE接收基站发送的上述信道状态参数信息，并根据上述信道状态参数信息包括用于确定上报信道状态信息的上报时刻的参数信息确定第一信道状态信息对应的第一上报时刻。其中，基站可以周期性的向UE发送信道状态参数信息；或者，基站也可以在UE与基站建立通信连接后的预设时间后向UE发送信道状态参数信息；或者，基站也可以在UE与基站建立通信连接后直接向UE发送信道状态参数信息等等，本发明不做限定。如果UE是周期性上报信道状态信息，上述信道状态参数信息可以包括上报周期和在上报周期内的偏移量，以便于UE可以确定上报信道状态信息的上报时刻；如果UE是非周期上报信道状态信息，上述信道状态参数信息可以包括上行调度准许，UE在接收到上行调度准许之后，可以根据预定义的上行调度准许发送时刻与上报时刻之间的关系，确定上报信道状态信息的上报时刻，例如针对LTE***，上行调度准许发送时刻和上报时刻都用子帧来表示，那么预定义的上行调度准许发送时刻与上报时刻之间的关系可以是4毫秒。其中，上述第一信道状态信息例如可以是秩指示RI、宽带信道质量指示CQI或宽带预编码矩阵指示PMI，也可以是窄带CQI或窄带PMI等等。本发明实施例第一信道状态信息以秩指示RI为例进行说明。
本发明实施例中，UE确定所述第一信道状态信息对应的第一参考资源的具体实施方式为：UE根据上述第一信道状态信息的第一上报时刻确定所述第一信道状态信息对应的第一参考资源。具体的，目前第三代合作伙伴项目3GPP协议对测量CSI所使用的参考资源进行了定义。定义中，参考资源包括时域资源和频域资源，时域资源一般用参考资源所在的时间单元对应的时域资源来表示，所述时间单元可以是无线帧、子帧、时隙、OFDM符号中的任一种，相应地，时间单元对应的时域资源可以是无线帧包括的时域资源、子帧包括的时域资源、时隙包括的时域资源、OFDM符号包括的时域资源；频域资源表示在上述时间单元内，包括的全部频率资源或部分频率资源。在本发明实施例中，主要讨论参考资源包括的时域资源，对于参考资源包括的频域资源，不做具体限定。对于参考资源包括的时域资源，一般可以用时域资源所在的时间单元的索引号来表示，例如，针对周期上报的CSI，若周期上报CSI的时刻为子帧索引为n的子帧，则对应该上报时刻的CSI参考资源所在子帧的子帧索引为n-m， 其中，m满足以下条件：m大于或等于4且使得子帧n-m为可用的下行子帧或特殊子帧的最小整数值。上述特殊子帧是TDD***中采用的一种子帧格式，在特殊子帧内包括DwPTS、UpPTS和GP。因此，为了保证LAA-LTE***下UE测量CSI的准确性，可以将测量CSI的参考资源，定义为距离该CSI上报时刻4ms之前，且距离该CSI上报时刻最近并位于on-duration之内的子帧，上述on-duration为服务该用户设备的基站抢占到该免许可频段资源且在该免许可频段上发送数据的时间段。因而，上述第一参考资源为距离上述第一上报时刻4ms之前，且距离第一上报时刻最近并位于on-duration之内的子帧。需要说明的是，在本发明实施例中，子帧索引可以用在一个无线帧内的编号来表示，例如一个无线帧包括10个子帧，那么在一个无线帧内的子帧索引可以用k表示，其中k为0至9中的任一整数，在这种情况下，如果上面提到的n-m小于0，则表示n-m对应的子帧在子帧n所在的无线帧之前，如果n-m大于9，则表示n-m对应的子帧在子帧n所在的无线帧之后；另一方面，子帧索引还可以用
Figure PCTCN2015090562-appb-000003
其中nf表示无线帧索引号，可以为0-1023中的任一整数，ns表示时隙索引号，可以为0-19中的任一整数，
Figure PCTCN2015090562-appb-000004
表示对x向下取整，“/”表示除法运算符。其中，本发明实施例中的参考资源位于所述UE的服务小区在免许可频段上发送数据的时间段内；上述参考资源包括测量信道状态信息的参考信号，即测量信道状态信息的参考信号分布在参考资源内，上述参考信号至少包括以下任意一种：CRS、CSI-RS、DMRS以及DRS，其中，CSI-RS还可以包括，NZP-CSI-RS、CSI-IM。
S302、所述UE在所述第一上报时刻，上报所述第一信道状态信息。
本发明实施例中，由于UE事先不能确定第一上报时刻与第二上报时刻之间是否存在新的参考资源，若下述步骤S303将第一上报时刻更新为第二上报时刻之后，第二上报时刻对应的参考资源仍然无法尽可能地接近UE历经的信道状态，也就是说，第二参考资源所在时刻与第二上报时刻之间的时间范围也有可能符合上述预设条件，也就是说，第二上报时刻可能不是比较合适的上报时刻，此时，为了避免信道状态信息缺失的情况，UE在所述第一上报时刻，上报所述第一信道状态信息，以便于基站可利用上述第一上报时刻上报的信道状态信息确定UE经历的信道状态，进而避免信道状态信息缺失的情况。
S303、若所述第一参考资源所在的时刻满足预设条件，UE将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻，其中，所述预设条件为所述第一参考资源所在的时刻与所述第一上报时刻之间的时间范围大于或等于时间阈值，所述第一上报时刻与所述第二上报时刻之间存在不同于所述第一参考资源的参考资源，所述第一上报时刻与所述第二上报时刻之间的时间范围小于所述时间阈值。
其中，所述预设条件为所述第一参考资源所在的时刻与所述第一上报时刻之间的时间范围大于或等于时间阈值。或者，换句话说，当上述第一参考资源为无效的参考资源时，UE将上述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻。上述无效的参考资源是指，如果UE根据上述无效的参考资源计算信道状态信息，则计算得到的信道状态信息无法反映UE接收服务小区的数据服务时经历的信道状态。无效的参考资源的一种表现形式，例如，根据现有协议定义的方式，如上述步骤S301中确定参考资源的具体步骤所述，在此不再赘述，如果确定的参考资源位于服务小区没有抢占到免许可频段的时间范围内，即对应服务小区在免许可频段的off-duration，那么可以认为确定的参考资源为无效的参考资源，因为，由于服务小区在免许可频段进行数据传输之前，需要先通过侦听机制例如LBT确定免许可频段的可使用性，而且一旦服务小区在免许可频段进行数据传输，在此数据传输的时间范围之内，除服务小区之外的其他小区只要侦听到所述服务小区在进行数据传输，那么在所述服务小区进行数据的时间范围内，都会保持静默，即不发送任何数据。因此服务小区在免许可频段的on-duration与off-duration时，服务小区和UE之间经历的信道干扰水平不同，因此，认为如果第一参考资源所在的时刻位于服务小区的off-duration内，那么所述第一参考资源可以认为是无效的参考资源。也就是说，所述预设条件还可以包括，所述第一参考资源所在的时刻位于UE的服务小区在免许可频段上没有发送数据的时间段内，或者说所述服务小区在免许可频段没有抢占到信道使用机会的时间段内。此时，UE可以在第一上报时刻不上报任何信息；或者也可以在第一上报时刻上报特殊的信道状态信息，来反应上报的信道状态信息无效，例如上报的特殊信道状态信息可以是out of range(OOR)。同时，将上报第一时刻更新为第二上报时刻。
需要说明的是，在本发明实施例中，侦听到所述服务小区在进行数据传输，或者是通过信号检测的方式，也可以是通过能量检测的方式，或者是二者的结合。通过信号检测的方式，是指检测到所述服务小区发送的信号，通过能量检测的方式，是指所述服务小区到达其他小区的数据能量超过某一门限值，例如功率门限值。
需要说明的是，在本发明实施例中，信道状态信息除了可以包括CQI、PMI、RI之外，还可以包括其他能够反映当服务小区和UE通信时的信息，在本发明实施例中不作限定。其中，上述时间阈值均可以用以下至少一项来表示：整数个子帧、整数个时隙、整数个无线帧、整数个OFDM符号。上述时间阈值与UE所在的信道状态平稳性有关，例如，目前3GPP协议中定义的RI的最长上报周期，基于最长上报周期的考虑，可以认为在上报周期范围内，上报的RI都是有效的，都可以支持CQI或PMI的计算。也就是说，当所述第一参考资源所在的时刻与所述第一上报时间之间的时间范围大于或等于时间阈值，可以认为基于所述第一参考资源计算得到的第一信道状态信息无法反映UE在所处信道上经历的信道状态。上述第一时间阈值和上述第二时间阈值可以是标准协议规范好的；或者，上述第一时间阈值和上述第二时间阈值也可以是服务UE的基站向UE发送的信道状态参数信息中携带的，或者是预配置的。在此本发明不做限定，不同的上述第一信道状态信息，可以对应不同的时间阈值。
其中，上述第一上报时刻与上述第二上报时刻之间存在不同于所述第一参考资源的参考资源。具体的，请参加图2b，图2b为免许可频段数据传输示意图，上述不同于所述第一参考资源的参考资源对应当服务UE的服务小区在第一上报时刻与第二上报时刻之间抢占到免许可频段资源时。如果服务UE的服务小区在第一上报时刻与第二上报时刻之间没有抢占到免许可频段资源时，那么显然，第二信道状态信息对应的参考资源与第一信道状态信息对应的参考资源相近，因此，第二上报时刻对应的参考资源与第二上报时刻之间的时间范围也有可能仍然符合上述预设条件。因此，为了确保基站接收到的信道状态信息CSI的准确性，在第一上报时刻与第二上报时刻之间存在不同于所述第一参考资源的参考资源的情况下，且上述第一上报时刻与上述第二上报时刻之间的时间范围小于所述时间阈值，将第一上报时刻更新为第二上报时刻。也就是说， 第一上报时刻与第二上报时刻之间的时间范围小于时间阈值，因此，不同于所述第一参考资源的参考资源所在的时刻与第二上报时刻之间的时间范围必然小于所述时间阈值。
在一发明实施例中，上述第二上报时刻为第二信道状态信息对应的原配置上报时刻。其中，第二信道状态信息对应的原配置的上报时刻为UE根据基站发送的信道状态参数信息确定的用于上报第二信道状态信息的上报时刻。上述第二信道状态信息与所述第一信道状态信息不同。第一信道状态信息与第二信道状态信息均可以包括RI、宽带CQI，宽带PMI，子带CQI、子带PMI中的任一项。例如RI和宽带CQI、宽带PMI表示不同的信道状态信息，宽带CQI和宽带PMI表示不同的信道状态信息，针对子带CQI，如果子带CQI对应的子带不同，那么也认为是不同的信道状态信息，针对子带PMI，如果子带PMI对应的子带不同，也认为是不同的信道状态信息。
在另一发明实施例中，上述第二信道状态信息为优先级次于所述第一信道状态信息的信道状态信息。也就是说，若上述第一信道状态信息为RI时，由于第二信道状态信息为优先级次于上述第一信道状态信息的信道状态信息，所以上述第二信道状态信息可以是宽带CQI、宽带PMI、窄带CQI、窄带PMI中的至少一个，本发明实施例第二信道状态信息以宽带CQI/PMI为例进行说明，进而上述第二上报时刻为宽带CQI/PMI对应的原配置上报时刻，其中，第二上报时刻为UE根据基站向UE发送的信道状态参数信息用于确定上报信道状态信息的上报时刻的参数信息确定的。
在另一发明实施例中，上述第一参考资源所在的时刻与上述第二上报时刻对应的第二参考资源所在的时刻不同。也就是说，RI对应的原配置参考资源所在的时刻与宽带CQI/PMI对应的原配置参考资源所在的时刻不同。需要说明的是，在本发明实施例中，上述参考资源所在的时刻可以用参考资源所在的时间单元来表示；或者，可以用时间单元的索引号来表示，例如当时间单元用子帧来表示时，时间单元的索引号可以是子帧索引号。相应地，若上述参考资源所在的时刻用参考资源所在的子帧来表示，则上述所在的时刻不同是指所在的子帧不是同一个。若上述参考资源所在的时刻用参考资源所在的OFDM符号来表示，则上述所在的时刻不同是指所在的OFDM符号不是同一个。
S304、UE在所述第二上报时刻上报所述第一信道状态信息。
本发明实施例中，UE在所述第二上报时刻上报所述第一信道状态信息。也就是说，UE在宽带CQI/PMI的上报时刻只上报RI，不上报宽带CQI/PMI。
在另一个发明实施例中，UE在所述第二上报时刻上报上述第一信道状态信息的同时还可以上报上述第二信道状态信息。也就是说，UE在宽带CQI/PMI的上报时刻同时上报RI和宽带CQI/PMI。
S305、UE在第三上报时刻上报所述第二信道状态信息。
在一发明实施例中，上述第三上报时刻可以为上述第二上报时刻之后的相邻上报第二上报时刻的信道状态信息的上报时刻。也就是说，周期上报的信道状态信息对应的上报时刻依次后延，例如，UE支持RI上报，宽带CQI/PMI和子带CQI/PMI上报，且UE需要上报2个子带的信道状态信息，那么UE上报的先后顺序分别为：在宽带CQI/PMI的上报时刻上报RI，在第一子带CQI/PMI的上报时刻上报宽带CQI/PMI，在第二子带CQI/PMI的上报时刻上报第一子带CQI/PMI依次类推。
在另一发明实施例中，上述第三上报时刻为第三信道状态信息的原配置上报时刻，上述第三信道状态信息为所述第二信道状态信息后一个相邻周期类型相同的信道状态信息。比如，第二信道状态信息为宽带CQI，第二上报时刻为上报宽带CQI的上报时刻，则第三上报时刻为在第二上报时刻之后，下一个上报宽带CQI的上报时刻。也就是说，UE在第二上报时刻丢弃第二信道状态信息，且不利用后续的上报时刻上报第二状态信息，而是在原配置的下一个第二信道状态信息上报时刻上报第二信道状态信息。例如，UE支持RI上报，宽带CQI/PMI和子带CQI/PMI上报，且UE需要上报2个子带的信道状态信息，第一信道状态信息为RI，第二信道状态信息为宽带CQI/PMI，那么UE上报的先后顺序分别是：在宽带CQI/PMI的上报时刻上报RI、在第一子带CQI/PMI的上报时刻上报第一子带CQI/PMI、在第二子带CQI/PMI的上报时刻上报第二子带CQI/PMI、在宽带CQI/PMI的上报时刻上报宽带CQI/PMI。
可以看出，本发明实施例中，在第一信道状态信息对应的第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻。由于第一上报时刻与第二上报时刻之间存在不同 于所述第一参考资源的参考资源，且第一上报时刻与第二上报时刻之间的时间范围小于所述时间阈值，因此，不同于所述第一参考资源的参考资源所在的时刻与第二上报时刻之间的时间范围必然小于时间阈值，这样使得UE在更新后的上报时刻上报的信道状态接近UE历经的信道状态，从而确保了基站接收到的信道状态信息CSI的准确性，故而确保基站和UE之间的数据传输可靠性以及数据传输效率。
请参见图4，图4为本发明实施例提供的一种上报信道状态信息时刻的更新方法的第三实施例流程图。其中，如图4所示，本发明的一个实施例提供的一种上报信道状态信息时刻的更新方法可以包括步骤S401～S410：
S401、基站向UE发送信道状态参数信息，所述信道状态参数信息包括用于确定上报信道状态信息的上报时刻的参数信息。
本发明实施例中，基站可以周期性的向UE发送信道状态参数信息；或者，基站也可以在UE与基站建立通信连接后的预设时间后向UE发送信道状态参数信息；或者，基站也可以在UE与基站建立通信连接后直接向UE发送信道状态参数信息等等，本发明不做限定。
S402、所述UE接收所述基站发送信道状态参数信息。
S403、所述UE根据所述信道状态参数信息确定第一信道状态信息的第一上报时刻和所述第一信道状态信息对应的第一参考资源。
本发明实施例中，UE确定第一信道状态信息对应的第一上报时刻的具体实施方式为：在UE与基站建立通信连接后，基站向UE发送信道状态参数信息，其中，上述信道状态参数信息包括用于确定上报信道状态信息的上报时刻的参数信息；UE接收基站发送的上述信道状态参数信息，并根据上述信道状态参数信息包括用于确定上报信道状态信息的上报时刻的参数信息确定第一信道状态信息对应的第一上报时刻。其中，基站可以周期性的向UE发送信道状态参数信息；或者，基站也可以在UE与基站建立通信连接后的预设时间后向UE发送信道状态参数信息；或者，基站也可以在UE与基站建立通信连接后直接向UE发送信道状态参数信息等等，本发明不做限定。如果UE是周期性上报信道状态信息，上述信道状态参数信息可以包括上报周期和在上报周期 内的偏移量，以便于UE可以确定上报信道状态信息的上报时刻；如果UE是非周期上报信道状态信息，上述信道状态参数信息可以包括上行调度准许，UE在接收到上行调度准许之后，可以根据预定义的上行调度准许发送时刻与上报时刻之间的关系，确定上报信道状态信息的上报时刻，例如针对LTE***，上行调度准许发送时刻和上报时刻都用子帧来表示，那么预定义的上行调度准许发送时刻与上报时刻之间的关系可以是4毫秒。其中，上述第一信道状态信息例如可以是秩指示RI、宽带信道质量指示CQI或宽带预编码矩阵指示PMI，也可以是窄带CQI或窄带PMI等等。本发明实施例第一信道状态信息以秩指示RI为例进行说明。
本发明实施例中，UE确定所述第一信道状态信息对应的第一参考资源的具体实施方式为：UE根据上述第一信道状态信息的第一上报时刻确定所述第一信道状态信息对应的第一参考资源。具体的，目前第三代合作伙伴项目3GPP协议对测量CSI所使用的参考资源进行了定义。定义中，参考资源包括时域资源和频域资源，时域资源一般用参考资源所在的时间单元对应的时域资源来表示，所述时间单元可以是无线帧、子帧、时隙、OFDM符号中的任一种，相应地，时间单元对应的时域资源可以是无线帧包括的时域资源、子帧包括的时域资源、时隙包括的时域资源、OFDM符号包括的时域资源；频域资源表示在上述时间单元内，包括的全部频率资源或部分频率资源。在本发明实施例中，主要讨论参考资源包括的时域资源，对于参考资源包括的频域资源，不做具体限定。对于参考资源包括的时域资源，一般可以用时域资源所在的时间单元的索引号来表示，例如，针对周期上报的CSI，若周期上报CSI的时刻为子帧索引为n的子帧，则对应该上报时刻的CSI参考资源所在子帧的子帧索引为n-m，其中，m满足以下条件：m大于或等于4且使得子帧n-m为可用的下行子帧或特殊子帧的最小整数值。上述特殊子帧是TDD***中采用的一种子帧格式，在特殊子帧内包括DwPTS、UpPTS和GP。因此，为了保证LAA-LTE***下UE测量CSI的准确性，可以将测量CSI的参考资源，定义为距离该CSI上报时刻4ms之前，且距离该CSI上报时刻最近并位于on-duration之内的子帧，上述on-duration为服务该用户设备的基站抢占到该免许可频段资源且在该免许可频段上发送数据的时间段。因而，上述第一参考资源为距离上述第一上报 时刻4ms之前，且距离第一上报时刻最近并位于on-duration之内的子帧。需要说明的是，在本发明实施例中，子帧索引可以用在一个无线帧内的编号来表示，例如一个无线帧包括10个子帧，那么在一个无线帧内的子帧索引可以用k表示，其中k为0至9中的任一整数，在这种情况下，如果上面提到的n-m小于0，则表示n-m对应的子帧在子帧n所在的无线帧之前，如果n-m大于9，则表示n-m对应的子帧在子帧n所在的无线帧之后；另一方面，子帧索引还可以用
Figure PCTCN2015090562-appb-000005
其中nf表示无线帧索引号，可以为0-1023中的任一整数，ns表示时隙索引号，可以为0-19中的任一整数，
Figure PCTCN2015090562-appb-000006
表示对x向下取整，“/”表示除法运算符。其中，本发明实施例中的参考资源位于所述UE的服务小区在免许可频段上发送数据的时间段内；上述参考资源包括测量信道状态信息的参考信号，即测量信道状态信息的参考信号分布在参考资源内，上述参考信号至少包括以下任意一种：CRS、CSI-RS、DMRS以及DRS，其中，CSI-RS还可以包括，NZP-CSI-RS、CSI-IM。
S404、所述UE在所述第一上报时刻，上报所述第一信道状态信息。本发明实施例中，由于UE事先不能确定第一上报时刻与第二上报时刻之间是否存在新的参考资源，若下述步骤S406将第一上报时刻更新为第二上报时刻之后，第二上报时刻对应的参考资源仍满足预设条件，也就是说，第二参考资源所在时刻与第二上报时刻之间的时间范围也有可能符合上述预设条件，也就是说，第二上报时刻可能不是比较合适的上报时刻，此时，为了避免信道状态信息缺失的情况，UE在所述第一上报时刻，上报所述第一信道状态信息，以便于基站可利用上述第一上报时刻上报的信道状态信息确定UE经历的信道状态，进而避免信道状态信息缺失的情况。
S405、所述基站在第一上报时刻接收所述UE上报的所述第一信道状态信息。
S406、若所述第一参考资源所在的时刻满足预设条件，所述UE将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻，其中，所述预设条件为所述第一参考资源所在的时刻与所述第一上报时刻之间的时间范围大于或等于时间阈值，所述第一上报时刻与所述第二上报时刻之间存在不同于所述第一参考资源的参考资源，所述第一上报时刻与所述第二上报时刻 之间的时间范围小于所述时间阈值。
其中，所述预设条件为所述第一参考资源所在的时刻与所述第一上报时刻之间的时间范围大于或等于时间阈值。或者，换句话说，当上述第一参考资源为无效的参考资源时，UE将上述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻。上述无效的参考资源是指，如果UE根据上述无效的参考资源计算信道状态信息，则计算得到的信道状态信息无法反映UE接收服务小区的数据服务时经历的信道状态。无效的参考资源的一种表现形式，例如，根据现有协议定义的方式，如上述步骤S401中确定参考资源的具体步骤所述，在此不再赘述，如果确定的参考资源位于服务小区没有抢占到免许可频段的时间范围内，即对应服务小区在免许可频段的off-duration，那么可以认为确定的参考资源为无效的参考资源，因为，由于服务小区在免许可频段进行数据传输之前，需要先通过侦听机制例如LBT确定免许可频段的可使用性，而且一旦服务小区在免许可频段进行数据传输，在此数据传输的时间范围之内，除服务小区之外的其他小区只要侦听到所述服务小区在进行数据传输，那么在所述服务小区进行数据的时间范围内，都会保持静默，即不发送任何数据。因此服务小区在免许可频段的on-duration与off-duration时，服务小区和UE之间经历的信道干扰水平不同，因此，认为如果第一参考资源所在的时刻位于服务小区的off-duration内，那么所述第一参考资源可以认为是无效的参考资源。也就是说，所述预设条件还可以包括，所述第一参考资源所在的时刻位于UE的服务小区在免许可频段上没有发送数据的时间段内，或者说所述服务小区在免许可频段没有抢占到信道使用机会的时间段内。此时，UE可以在第一上报时刻不上报任何信息；或者也可以在第一上报时刻上报特殊的信道状态信息，来反应上报的信道状态信息无效，例如上报的特殊信道状态信息可以是out of range(OOR)。同时，将上报第一时刻更新为第二上报时刻。
需要说明的是，在本发明实施例中，侦听到所述服务小区在进行数据传输，或者是通过信号检测的方式，也可以是通过能量检测的方式，或者是二者的结合。通过信号检测的方式，是指检测到所述服务小区发送的信号，通过能量检测的方式，是指所述服务小区到达其他小区的数据能量超过某一门限值，例如功率门限值。
需要说明的是，在本发明实施例中，信道状态信息除了可以包括CQI、PMI、RI之外，还可以包括其他能够反映当服务小区和UE通信时的信息，在本发明实施例中不作限定。其中，上述时间阈值均可以用以下至少一项来表示：整数个子帧、整数个时隙、整数个无线帧、整数个OFDM符号。上述时间阈值与UE所在的信道状态平稳性有关，例如，目前3GPP协议中定义的RI的最长上报周期，基于最长上报周期的考虑，可以认为在上报周期范围内，上报的RI都是有效的，都可以支持CQI或PMI的计算。也就是说，当所述第一参考资源所在的时刻与所述第一上报时间之间的时间范围大于或等于时间阈值，可以认为基于所述第一参考资源计算得到的第一信道状态信息无法反映UE在所处信道上经历的信道状态。上述第一时间阈值和上述第二时间阈值可以是标准协议规范好的；或者，上述第一时间阈值和上述第二时间阈值也可以是服务UE的基站向UE发送的信道状态参数信息中携带的，或者是预配置的。在此本发明不做限定，不同的上述第一信道状态信息，可以对应不同的时间阈值。
其中，上述第一上报时刻与上述第二上报时刻之间存在不同于所述第一参考资源的参考资源。具体的，请参加图2b，图2b为免许可频段数据传输示意图，上述不同于所述第一参考资源的参考资源为服务UE的服务小区在第一上报时刻与第二上报时刻之间抢占到免许可频段资源。如果第一上报时刻与第二上报时刻之间不同于所述第一参考资源的参考资源，那么显然，第二信道状态信息对应的参考资源与第一信道状态信息对应的参考资源相近，因此，第二上报时刻对应的参考资源与第二上报时刻之间的时间范围也有可能仍然符合上述预设条件。因此，为了确保基站接收到的信道状态信息CSI的准确性，在第一上报时刻与第二上报时刻之间存在不同于所述第一参考资源的参考资源的情况下，且上述第一上报时刻与上述第二上报时刻之间的时间范围小于所述时间阈值，将第一上报时刻更新为第二上报时刻。也就是说，第一上报时刻与第二上报时刻之间的时间范围小于时间阈值，因此，不同于所述第一参考资源的参考资源所在的时刻与第二上报时刻之间的时间范围必然小于所述时间阈值。
在一发明实施例中，上述第二上报时刻为第二信道状态信息对应的原配置上报时刻。其中，第二信道状态信息对应的原配置的上报时刻为UE根据基站发送的信道状态参数信息确定的用于上报第二信道状态信息的上报时刻。上述 第二信道状态信息与所述第一信道状态信息不同。第一信道状态信息与第二信道状态信息均可以包括RI、宽带CQI，宽带PMI，子带CQI、子带PMI中的任一项。例如RI和宽带CQI、宽带PMI表示不同的信道状态信息，宽带CQI和宽带PMI表示不同的信道状态信息，针对子带CQI，如果子带CQI对应的子带不同，那么也认为是不同的信道状态信息，针对子带PMI，如果子带PMI对应的子带不同，也认为是不同的信道状态信息。
在另一发明实施例中，上述第二信道状态信息为优先级次于所述第一信道状态信息的信道状态信息。也就是说，若上述第一信道状态信息为RI时，由于第二信道状态信息为优先级次于上述第一信道状态信息的信道状态信息，所以上述第二信道状态信息可以是宽带CQI、宽带PMI、窄带CQI、窄带PMI中的至少一个，本发明实施例第二信道状态信息以宽带CQI/PMI为例进行说明，进而上述第二上报时刻为宽带CQI/PMI对应的原配置上报时刻，其中，第二上报时刻为UE根据基站向UE发送的信道状态参数信息用于确定上报信道状态信息的上报时刻的参数信息确定的。
在另一发明实施例中，上述第一参考资源所在的时刻与上述第二上报时刻对应的第二参考资源所在的时刻不同。也就是说，RI对应的原确定参考资源所在的时刻与宽带CQI/PMI对应的原确定参考资源所在的时刻不同。需要说明的是，在本发明实施例中，上述参考资源所在的时刻可以用参考资源所在的时间单元来表示；或者，可以用时间单元的索引号来表示，例如当时间单元用子帧来表示时，时间单元的索引号可以是子帧索引号。相应地，若上述参考资源所在的时刻用参考资源所在的子帧来表示，则上述所在的时刻不同是指所在的子帧不是同一个。若上述参考资源所在的时刻用参考资源所在的OFDM符号来表示，则上述所在的时刻不同是指所在的OFDM符号不是同一个。
S407、所述UE在所述第二上报时刻上报所述第一信道状态信息。
本发明实施例中，UE在所述第二上报时刻上报所述第一信道状态信息。也就是说，UE在宽带CQI/PMI的上报时刻只上报RI，不上报宽带CQI/PMI。
在另一个发明实施例中，UE在所述第二上报时刻上报上述第一信道状态信息的同时还可以上报上述第二信道状态信息。也就是说，UE在宽带CQI/PMI的上报时刻同时上报RI和宽带CQI/PMI。
S408、所述基站在所述第二上报时刻接收所述UE上报的所述第一信道状态信息。
S409、所述UE在第三上报时刻上报所述第二信道状态信息。
在一发明实施例中，上述第三上报时刻可以为上述第二上报时刻之后的相邻上报第二上报时刻的信道状态信息的上报时刻。也就是说，周期上报的信道状态信息对应的上报时刻依次后延，例如，UE支持RI上报，宽带CQI/PMI和子带CQI/PMI上报，且UE需要上报2个子带的信道状态信息，那么UE上报的先后顺序分别为：在宽带CQI/PMI的上报时刻上报RI，在第一子带CQI/PMI的上报时刻上报宽带CQI/PMI，在第二子带CQI/PMI的上报时刻上报第一子带CQI/PMI依次类推。
在另一发明实施例中，上述第三上报时刻为第三信道状态信息的原配置上报时刻，上述第三信道状态信息为所述第二信道状态信息后一个相邻周期类型相同的信道状态信息。比如，第二信道状态信息为宽带CQI，第二上报时刻为上报宽带CQI的上报时刻，则第三上报时刻为在第二上报时刻之后，下一个上报宽带CQI的上报时刻。也就是说，UE在第二上报时刻丢弃第二信道状态信息，且不利用后续的上报时刻上报第二状态信息，而是在原配置的下一个第二信道状态信息上报时刻上报第二信道状态信息。例如，UE支持RI上报，宽带CQI/PMI和子带CQI/PMI上报，且UE需要上报2个子带的信道状态信息，第一信道状态信息为RI，第二信道状态信息为宽带CQI/PMI，那么UE上报的先后顺序分别是：在宽带CQI/PMI的上报时刻上报RI、在第一子带CQI/PMI的上报时刻上报第一子带CQI/PMI、在第二子带CQI/PMI的上报时刻上报第二子带CQI/PMI、在宽带CQI/PMI的上报时刻上报宽带CQI/PMI。
S410、所述基站在所述第三上报时刻接收所述UE上报的所述第二信道状态信息。
可以看出，本发明实施例中，在第一信道状态信息对应的第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻。由于第一上报时刻与第二上报时刻之间存在不同于所述第一参考资源的参考资源，且第一上报时刻与第二上报时刻之间的时间范围小于所述时间阈值，因此，不同于所述第一参考资源的参考资源所在的时 刻与第二上报时刻之间的时间范围必然小于时间阈值，这样使得UE在更新后的上报时刻上报的信道状态接近UE历经的信道状态，从而确保了基站接收到的信道状态信息CSI的准确性，故而确保基站和UE之间的数据传输可靠性以及数据传输效率。
请参阅图5，本发明实施例还提供一种通信设备，可包括：确定单元501、更新单元502，其中：
上述确定单元501，用于确定第一信道状态信息的第一上报时刻和所述第一信道状态信息对应的第一参考资源。
上述更新单元502，用于当所述确定单元501确定得到的所述第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻；
其中，所述预设条件为所述第一参考资源所在的时刻与所述第一上报时刻之间的时间范围大于或等于时间阈值，所述第一上报时刻与所述第二上报时刻之间存在不同于所述第一参考资源的参考资源，所述第一上报时刻与所述第二上报时刻之间的时间范围小于所述时间阈值。
可选的，在上述确定单元501确定第一信道状态信息的第一上报时刻之后，图5所示的通信设备还包括：上报单元，用于在所述第一上报时刻，上报所述第一信道状态信息。
可选的，上述第二上报时刻为第二信道状态信息对应的原配置上报时刻。
可选的，上述第二信道状态信息为优先级次于所述第一信道状态信息的信道状态信息。
可选的，上述第一参考资源所在的时刻与所述第二信道状态信息对应的第二参考资源所在的时刻不同。
可选的，在上述更新单元502，当所述确定单元501确定得到的所述第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻之后，上述上报单元，还用于在所述第二上报时刻上报所述第一信道状态信息和所述第二信道状态信息；或者，在所述第二上报时刻上报所述第一信道状态信息。
可选的，在上报单元在所述第二上报时刻上报所述第一信道状态信息之后，上述上报单元，还用于在第三上报时刻上报所述第二信道状态信息；所述第三上报时刻为所述第二上报时刻之后的相邻所述第二上报时刻的信道状态信息的上报时刻；或者，所述第三上报时刻为第三信道状态信息的原配置上报时刻，所述第三信道状态信息为所述第二信道状态信息后一个相邻周期的类型相同的信道状态信息。
可选的，参考资源位于通信设备的服务小区在免许可频段上发送数据的时间段内；其中，所述参考资源包括测量信道状态信息的参考信号，所述参考信号至少包括以下任意一种：小区公共参考信号CRS、信号状态信息参考信号CSI-RS、解调参考信号DMRS以及发现参考信号DRS。
可以理解的是，本实施例的UE的各功能模块的功能可根据上述方法实施例中的方法具体实现，其具体实现过程可以参照上述方法实施例的相关描述，此处不再赘述。通信设备中的部分或全部功能模块可由硬件电路实现，通信设备中的部分或全部功能模块也可由处理器(如数字信号处理器)通过完成执行代码或指令来实现。
可以看出，本发明实施例中，在第一信道状态信息对应的第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻。由于第一上报时刻与第二上报时刻之间存在不同于所述第一参考资源的参考资源，且第一上报时刻与第二上报时刻之间的时间范围小于所述时间阈值，因此，不同于所述第一参考资源的参考资源所在的时刻与第二上报时刻之间的时间范围必然小于时间阈值，这样使得UE在更新后的上报时刻上报的信道状态接近UE历经的信道状态，从而确保了基站接收到的信道状态信息CSI的准确性，故而确保基站和UE之间的数据传输可靠性以及数据传输效率。
请参见图6，本发明实施例还提供一种通信设备，可包括：处理器601和存储器602；其中，处理器601和存储器602通过总线603耦合连接。其中，所述处理器601可通过调用所述存储器601中的代码或指令以执行如下步骤：
确定第一信道状态信息的第一上报时刻和所述第一信道状态信息对应的 第一参考资源；
当所述第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻；
其中，所述预设条件为所述第一参考资源所在的时刻与所述第一上报时刻之间的时间范围大于或等于时间阈值，所述第一上报时刻与所述第二上报时刻之间存在不同于所述第一参考资源的参考资源，所述第一上报时刻与所述第二上报时刻之间的时间范围小于所述时间阈值。
可选的，在本发明一些可能的实现方式中，所述确定第一信道状态信息对应的第一上报时刻之后，所述处理器还用于：
在所述第一上报时刻，上报所述第一信道状态信息。
可选的，在本发明一些可能的实现方式中，所述第二上报时刻为第二信道状态信息对应的原配置上报时刻。
可选的，在本发明一些可能的实现方式中，所述第二信道状态信息为优先级次于所述第一信道状态信息的信道状态信息。
可选的，在本发明一些可能的实现方式中，所述第一参考资源所在的时刻与所述第二信道状态信息对应的第二参考资源所在的时刻不同。
可选的，在本发明一些可能的实现方式中，所述将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻之后，所述处理器还用于：
在所述第二上报时刻上报所述第一信道状态信息和所述第二信道状态信息；或者，在所述第二上报时刻上报所述第一信道状态信息。
可选的，在本发明一些可能的实现方式中，所述在所述第二上报时刻上报所述第一信道状态信息之后，所述处理器还用于：
在第三上报时刻上报所述第二信道状态信息；所述第三上报时刻为所述第二上报时刻之后的相邻所述第二上报时刻的信道状态信息的上报时刻；或者，所述第三上报时刻为第三信道状态信息的原配置上报时刻，所述第三信道状态信息为所述第二信道状态信息后一个相邻周期的类型相同的信道状态信息。
可选的，在本发明一些可能的实现方式中，参考资源位于通信设备的服务小区在免许可频段上发送数据的时间段内；
其中，所述参考资源包括测量信道状态信息的参考信号，所述参考信号至少包括以下任意一种：小区公共参考信号CRS、信号状态信息参考信号CSI-RS、解调参考信号DMRS以及发现参考信号DRS。
可以理解的是，本实施例的通信设备的各功能模块的功能可根据上述方法实施例中的方法具体实现，其具体实现过程可以参照上述方法实施例的相关描述，此处不再赘述。通信设备中的部分或全部功能模块可由硬件电路实现，通信设备中的部分或全部功能模块也可由处理器(如数字信号处理器)通过完成执行代码或指令来实现。
可以看出，本发明实施例中，在第一信道状态信息对应的第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻。由于第一上报时刻与第二上报时刻之间存在不同于所述第一参考资源的参考资源，且第一上报时刻与第二上报时刻之间的时间范围小于所述时间阈值，因此，不同于所述第一参考资源的参考资源所在的时刻与第二上报时刻之间的时间范围必然小于时间阈值，这样使得UE在更新后的上报时刻上报的信道状态接近UE历经的信道状态，从而确保了基站接收到的信道状态信息CSI的准确性，故而确保基站和UE之间的数据传输可靠性以及数据传输效率。
请参见图7，图7为本发明实施例公开的一种通信***的结构图。如图7所示，该通信***包括通信设备和基站，其中：
所述基站，用于向所述通信设备发送信道状态参数信息，所述信道状态参数信息包括用于确定上报信道状态信息的上报时刻的参数信息；
所述通信设备，用于接收所述通信设备发送信道状态参数信息；根据所述信道状态参数信息确定第一信道状态信息对应的第一上报时刻和所述第一上报时刻对应的第一参考资源；当所述第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻；
其中，所述预设条件为所述第一参考资源所在的时刻与所述第一上报时刻之间的时间范围大于或等于时间阈值，所述第一上报时刻与所述第二上报时刻 之间存在不同于所述第一参考资源的参考资源，所述第一上报时刻与所述第二上报时刻之间的时间范围小于所述时间阈值。
在一实施例中，在所述通信设备根据所述信道状态参数信息确定第一信道状态信息对应的第一上报时刻之后，
所述通信设备，还用于在所述第一上报时刻，上报所述第一信道状态信息；
所述基站，还用于在第一上报时刻接收所述通信设备上报的所述第一信道状态信息。
在一实施例中，所述第二上报时刻为第二信道状态信息对应的原配置上报时刻。
在一实施例中，所述第二信道状态信息为优先级次于所述第一信道状态信息的信道状态信息。
在一实施例中，所述第一参考资源所在的时刻与所述第二信道状态信息对应的第二参考资源所在的时刻不同。
在一实施例中，所述通信设备将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻之后，所述通信设备还用于：
在所述第二上报时刻上报所述第一信道状态信息和所述第二信道状态信息；或者，在所述第二上报时刻上报所述第一信道状态信息。
在一实施例中，所述通信设备在所述第二上报时刻上报所述第一信道状态信息之后，所述通信设备还用于：
在第三上报时刻上报所述第二信道状态信息；所述第三上报时刻为所述第二上报时刻之后的相邻所述第二上报时刻的信道状态信息的上报时刻；或者，所述第三上报时刻为第三信道状态信息的原配置上报时刻，所述第三信道状态信息为所述第二信道状态信息后一个相邻周期的类型相同的信道状态信息。
在一实施例中，参考资源位于通信设备的服务小区在免许可频段上发送数据的时间段内；
其中，所述参考资源包括测量信道状态信息的参考信号，所述参考信号至少包括以下任意一种：小区公共参考信号CRS、信号状态信息参考信号CSI-RS、解调参考信号DMRS以及发现参考信号DRS。
可以理解的是，本实施例的通信***的包括的通信设备和基站可根据所述 方法实施例中的方法具体实现，其具体实现过程可以参照所述方法实施例的相关描述，此处不再赘述。
可以看出，本发明实施例中，在第一信道状态信息对应的第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻。由于第一上报时刻与第二上报时刻之间存在不同于所述第一参考资源的参考资源，且第一上报时刻与第二上报时刻之间的时间范围小于时间阈值，因此，不同于所述第一参考资源的参考资源所在的时刻与第二上报时刻之间的时间范围必然小于所述时间阈值，这样使得UE在更新后的上报时刻上报的信道状态接近UE历经的信道状态，从而确保了基站接收到的信道状态信息CSI的准确性，故而确保基站和UE之间的数据传输可靠性以及数据传输效率。
需要说明的是，对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本发明并不受所描述的动作顺序的限制，因为依据本发明，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本发明所必须的。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置，可通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或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(可为个人计算机、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步骤。而前述的存储介质包括：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。
以上所述，以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (32)

  1. 一种上报信道状态信息时刻的更新方法，其特征在于，包括：
    确定第一信道状态信息的第一上报时刻和所述第一信道状态信息对应的第一参考资源；
    当所述第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻；
    其中，所述预设条件为所述第一参考资源所在的时刻与所述第一上报时刻之间的时间范围大于或等于时间阈值，所述第一上报时刻与所述第二上报时刻之间存在不同于所述第一参考资源的参考资源，所述第一上报时刻与所述第二上报时刻之间的时间范围小于所述时间阈值。
  2. 根据权利要求1所述的方法，其特征在于，所述确定第一信道状态信息对应的第一上报时刻之后，所述方法还包括：
    在所述第一上报时刻，上报所述第一信道状态信息。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第二上报时刻为第二信道状态信息对应的原配置上报时刻。
  4. 根据权利要求3所述的方法，其特征在于，所述第二信道状态信息为优先级次于所述第一信道状态信息的信道状态信息。
  5. 根据权利要求3或4所述的方法，其特征在于，所述第一参考资源所在的时刻与所述第二信道状态信息对应的第二参考资源所在的时刻不同。
  6. 根据权利要求1～5任一项所述的方法，其特征在于，所述将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻之后，所述方法还包括：在所述第二上报时刻上报所述第一信道状态信息和所述第二信道状态信息；或者，在所述第二上报时刻上报所述第一信道状态信息。
  7. 根据权利要求6所述的方法，其特征在于，所述在所述第二上报时刻上报所述第一信道状态信息之后，所述方法还包括：
    在第三上报时刻上报所述第二信道状态信息；所述第三上报时刻为所述第二上报时刻之后的相邻所述第二上报时刻的信道状态信息的上报时刻；或者，所述第三上报时刻为第三信道状态信息的原配置上报时刻，所述第三信道状态 信息为所述第二信道状态信息后一个相邻周期的类型相同的信道状态信息。
  8. 根据权利要求1～7任一项所述的方法，其特征在于，参考资源位于用户设备UE的服务小区在免许可频段上发送数据的时间段内；
    其中，所述参考资源包括测量信道状态信息的参考信号，所述参考信号至少包括以下任意一种：小区公共参考信号CRS、信号状态信息参考信号CSI-RS、解调参考信号DMRS以及发现参考信号DRS。
  9. 一种通信设备，其特征在于，包括：
    确定单元，用于确定第一信道状态信息的第一上报时刻和所述第一信道状态信息对应的第一参考资源；
    更新单元，用于当所述确定单元确定得到的所述第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻；
    其中，所述预设条件为所述第一参考资源所在的时刻与所述第一上报时刻之间的时间范围大于或等于时间阈值，所述第一上报时刻与所述第二上报时刻之间存在不同于所述第一参考资源的参考资源，所述第一上报时刻与所述第二上报时刻之间的时间范围小于所述时间阈值。
  10. 根据权利要求9所述的通信设备，其特征在于，所述通信设备还包括：
    上报单元，用于在所述第一上报时刻，上报所述第一信道状态信息。
  11. 根据权利要求9或10所述的通信设备，其特征在于，所述第二上报时刻为第二信道状态信息对应的原配置上报时刻。
  12. 根据权利要求11所述的通信设备，其特征在于，所述第二信道状态信息为优先级次于所述第一信道状态信息的信道状态信息。
  13. 根据权利要求11或12所述的通信设备，其特征在于，所述第一参考资源所在的时刻与所述第二信道状态信息对应的第二参考资源所在的时刻不同。
  14. 根据权利要求19～13任一项所述的通信设备，其特征在于，
    所述上报单元，还用于在所述第二上报时刻上报所述第一信道状态信息和所述第二信道状态信息；或者，在所述第二上报时刻上报所述第一信道状态信息。
  15. 根据权利要求14所述的通信设备，其特征在于，
    所述上报单元，还用于在第三上报时刻上报所述第二信道状态信息；所述第三上报时刻为所述第二上报时刻之后的相邻所述第二上报时刻的信道状态信息的上报时刻；或者，所述第三上报时刻为第三信道状态信息的原配置上报时刻，所述第三信道状态信息为所述第二信道状态信息后一个相邻周期的类型相同的信道状态信息。
  16. 根据权利要求9～15任一项所述的通信设备，其特征在于，参考资源位于用户设备UE的服务小区在免许可频段上发送数据的时间段内；其中，所述参考资源包括测量信道状态信息的参考信号，所述参考信号至少包括以下任意一种：小区公共参考信号CRS、信号状态信息参考信号CSI-RS、解调参考信号DMRS以及发现参考信号DRS。
  17. 一种通信设备，其特征在于，包括：
    处理器和存储器；其中，所述处理器通过调用所述存储器中的代码或指令以执行如下步骤：
    确定第一信道状态信息的第一上报时刻和所述第一信道状态信息对应的第一参考资源；
    当所述第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻；
    其中，所述预设条件为所述第一参考资源所在的时刻与所述第一上报时刻之间的时间范围大于或等于时间阈值，所述第一上报时刻与所述第二上报时刻之间存在不同于所述第一参考资源的参考资源，所述第一上报时刻与所述第二上报时刻之间的时间范围小于所述时间阈值。
  18. 根据权利要求17所述的通信设备，其特征在于，所述确定第一信道状态信息对应的第一上报时刻之后，所述处理器还用于：
    在所述第一上报时刻，上报所述第一信道状态信息。
  19. 根据权利要求17或18所述的通信设备，其特征在于，所述第二上报时刻为第二信道状态信息对应的原配置上报时刻。
  20. 根据权利要求19所述的通信设备，其特征在于，所述第二信道状态信息为优先级次于所述第一信道状态信息的信道状态信息。
  21. 根据权利要求19或20所述的通信设备，其特征在于，所述第一参考资源所在的时刻与所述第二信道状态信息对应的第二参考资源所在的时刻不同。
  22. 根据权利要求17～21任一项所述的通信设备，其特征在于，所述将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻之后，所述处理器还用于：
    在所述第二上报时刻上报所述第一信道状态信息和所述第二信道状态信息；或者，在所述第二上报时刻上报所述第一信道状态信息。
  23. 根据权利要求22所述的通信设备，其特征在于，所述在所述第二上报时刻上报所述第一信道状态信息之后，所述处理器还用于：
    在第三上报时刻上报所述第二信道状态信息；所述第三上报时刻为所述第二上报时刻之后的相邻所述第二上报时刻的信道状态信息的上报时刻；或者，所述第三上报时刻为第三信道状态信息的原配置上报时刻，所述第三信道状态信息为所述第二信道状态信息后一个相邻周期的类型相同的信道状态信息。
  24. 根据权利要求9～23任一项所述的通信设备，其特征在于，参考资源位于用户设备UE的服务小区在免许可频段上发送数据的时间段内；
    其中，所述参考资源包括测量信道状态信息的参考信号，所述参考信号至少包括以下任意一种：小区公共参考信号CRS、信号状态信息参考信号CSI-RS、解调参考信号DMRS以及发现参考信号DRS。
  25. 一种通信***，其特征在于，包括通信设备和基站，其中：
    所述基站，用于向所述通信设备发送信道状态参数信息，所述信道状态参数信息包括用于确定上报信道状态信息的上报时刻的参数信息；
    所述通信设备，用于接收所述通信设备发送信道状态参数信息；根据所述信道状态参数信息确定第一信道状态信息对应的第一上报时刻和所述第一上报时刻对应的第一参考资源；当所述第一参考资源所在的时刻满足预设条件时，将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻；
    其中，所述预设条件为所述第一参考资源所在的时刻与所述第一上报时刻之间的时间范围大于或等于时间阈值，所述第一上报时刻与所述第二上报时刻 之间存在不同于所述第一参考资源的参考资源，所述第一上报时刻与所述第二上报时刻之间的时间范围小于所述时间阈值。
  26. 根据权利要求25所述的***，其特征在于，所述通信设备根据所述信道状态参数信息确定第一信道状态信息对应的第一上报时刻之后，
    所述通信设备，还用于在所述第一上报时刻，上报所述第一信道状态信息；
    所述基站，还用于在第一上报时刻接收所述通信设备上报的所述第一信道状态信息。
  27. 根据权利要求25或26所述的***，其特征在于，所述第二上报时刻为第二信道状态信息对应的原配置上报时刻。
  28. 根据权利要求27所述的***，其特征在于，所述第二信道状态信息为优先级次于所述第一信道状态信息的信道状态信息。
  29. 根据权利要求27或28所述的***，其特征在于，所述第一参考资源所在的时刻与所述第二信道状态信息对应的第二参考资源所在的时刻不同。
  30. 根据权利要求25～29任一项所述的***，其特征在于，所述通信设备将所述第一信道状态信息的上报时刻由所述第一上报时刻更新为第二上报时刻之后，所述通信设备还用于：在所述第二上报时刻上报所述第一信道状态信息和所述第二信道状态信息；或者，在所述第二上报时刻上报所述第一信道状态信息。
  31. 根据权利要求30所述的***，其特征在于，所述通信设备在所述第二上报时刻上报所述第一信道状态信息之后，所述通信设备还用于：在第三上报时刻上报所述第二信道状态信息；所述第三上报时刻为所述第二上报时刻之后的相邻所述第二上报时刻的信道状态信息的上报时刻；或者，所述第三上报时刻为第三信道状态信息的原配置上报时刻，所述第三信道状态信息为所述第二信道状态信息后一个相邻周期的类型相同的信道状态信息。
  32. 根据权利要求25～31任一项所述的方法，其特征在于，参考资源位于通信设备的服务小区在免许可频段上发送数据的时间段内；
    其中，所述参考资源包括测量信道状态信息的参考信号，所述参考信号至少包括以下任意一种：小区公共参考信号CRS、信号状态信息参考信号CSI-RS、解调参考信号DMRS以及发现参考信号DRS。
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CN102468905A (zh) * 2010-11-08 2012-05-23 华为技术有限公司 一种信道状态信息上报方法和设备
CN103905146A (zh) * 2012-12-28 2014-07-02 华为技术有限公司 信道状态信息上报的方法及用户设备

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CN104993914B (zh) * 2015-05-18 2018-09-25 北京交通大学 基于无线环境图的无线信道估计方法与装置
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CN102468905A (zh) * 2010-11-08 2012-05-23 华为技术有限公司 一种信道状态信息上报方法和设备
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