WO2016119761A1 - 信道质量指示cqi估计方法及装置 - Google Patents

信道质量指示cqi估计方法及装置 Download PDF

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Publication number
WO2016119761A1
WO2016119761A1 PCT/CN2016/076529 CN2016076529W WO2016119761A1 WO 2016119761 A1 WO2016119761 A1 WO 2016119761A1 CN 2016076529 W CN2016076529 W CN 2016076529W WO 2016119761 A1 WO2016119761 A1 WO 2016119761A1
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Prior art keywords
measurement
rssi
interference
cell
signal
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PCT/CN2016/076529
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English (en)
French (fr)
Inventor
莫林梅
赵亚军
徐汉青
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中兴通讯股份有限公司
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Priority claimed from CN201510170454.8A external-priority patent/CN106160980B/zh
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2016119761A1 publication Critical patent/WO2016119761A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]

Definitions

  • the present invention relates to the field of communications, and in particular to a channel quality indication CQI estimation method and apparatus.
  • LTE/LTE-A Long Term Evolution Advanced
  • 3GPP 3rd Generation Partnership Project
  • LTE supports multiple bandwidth allocations: 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz and 20MHz, etc., spectrum allocation is more flexible.
  • LTE currently works mainly on the licensed spectrum, and the frequency bands selected in different regions are also different.
  • LTE-A In order to support a wider frequency band, LTE-A introduces Carrier Aggregation (CA), and the basic idea is to form a wider spectrum by aggregating multiple consecutive or discrete carriers. Through carrier aggregation, LTE-A can support up to 100MHz bandwidth.
  • CA Carrier Aggregation
  • the LTE evolved base station On the authorized carrier, the LTE evolved base station (E-UTRAN NodeB, hereinafter referred to as eNB) transmits a reference signal for channel state information (CSI) measurement to the user equipment (User Equipment, UE for short).
  • CSI channel state information
  • a non-zero power channel state information reference signal Non-Zero Power CSI reference signals, referred to as NZP CSI-RS
  • NZP CSI-RS non-zero power channel state information reference signals
  • Zero Power CSI reference signals Zero power channel state information reference signal for interference measurement
  • the UE receives the measurement reference signal, performs the CSI measurement, and reports the measurement result to the eNB.
  • the eNB performs the accurate data scheduling and transmission according to the CSI information reported by the UE, and the CSI measurement includes the precoding matrix indication ( Precoding Matrix Indicator (referred to as PMI), Channel Quality Indicator (CQI), and interference measurement.
  • PMI Precoding Matrix Indicator
  • CQI Channel Quality Indicator
  • the result of CQI and interference measurement will be inaccurate due to fewer measurement samples; on the other hand, if CQI measurement and interference The measurement can only be performed during the channel occupation period. Because there is a certain delay in the measurement report, the eNB cannot obtain the measurement result in time, and it is even possible that the channel measurement result cannot be obtained before the eNB ends the channel occupation.
  • the licensed carrier assisted access (LAA) cell may choose to transmit data on the unlicensed carrier or the authorized carrier.
  • the interference situation on the authorized carrier may be different from the interference on the unlicensed carrier. The big difference is that the current single measurement behavior will not meet the needs of carrier switching.
  • the present invention provides a channel quality indication CQI estimation method and apparatus to at least solve the problem that a single measurement behavior in the related art cannot meet the requirement of carrier switching.
  • a channel quality indication CQI estimation method including: detecting a channel state of an unlicensed carrier; and obtaining, when the channel state is an idle state, acquiring the unlicensed carrier of a cell in a designated time slot.
  • the interference measurement result; the initial CQI estimation value when the above unlicensed carrier is occupied is obtained according to the interference measurement result described above.
  • detecting a channel state of the unlicensed carrier includes: acquiring a clean channel estimation CCA policy; detecting a channel state of the unlicensed carrier according to the CCA policy, where the CCA policy includes one of the following: policy 1: simultaneously detecting the cell The non-coordinating interference signal and the coordinable interference signal of the foregoing cell are obtained, and the detection result is obtained, and a CCA threshold is used to compare with the obtained inspection result, and it is determined whether the unlicensed carrier is in an idle state according to the comparison result; Strategy 2: simultaneously detecting the cell The interference signal and the coordinable interference signal of the foregoing cell are not coordinated, and the detection result is obtained.
  • the CCA policy includes one of the following: policy 1: simultaneously detecting the cell The non-coordinating interference signal and the coordinable interference signal of the foregoing cell are obtained, and the detection result is obtained, and a CCA threshold is used to compare with the obtained inspection result, and it is determined whether the unlicensed carrier is in an idle state according to the comparison result; Strategy
  • the two CCA thresholds are compared with the obtained inspection result, and the unlicensed carrier is judged to be in an idle state according to the comparison result;
  • Strategy 3 detecting only the above cell
  • the uncoordinated interference is obtained, and the detection result is obtained.
  • the uncoordinated interference signal of the cell includes at least one of the following: different Interference of multiple network nodes of the information system; interference with other cells belonging to the same communication system as the above-mentioned cells and belonging to different operators;
  • the coordinated interference signal of the foregoing cell includes at least one of the following: belonging to the same as the above-mentioned cell a communication system, and interference with other cells belonging to the same operator as the above-mentioned cells; interference with other cells belonging to the same communication system as the above-mentioned cells and belonging to different operators.
  • the manner of detecting the uncoordinated interference signal of the foregoing cell and/or the coordinable interference signal of the foregoing cell includes one of the following: when the unconfigurable interference silence pattern is configured in the cell, the silence indicated by the uncoordinated interference silence pattern is The uncoordinated interference measurement is performed at any time, and the obtained interference measurement result is the above uncoordinated interference signal; the interference measurement is performed at a time other than the silent moment indicated by the uncoordinated interference silence pattern, and the obtained interference measurement result includes the above uncoordinated interference signal and
  • the above-mentioned coordinable interference signal is a difference between the sum of the uncoordinated interference signal and the sum of the coordinable interference signals and the non-coordinated interference signal; or, the uncoordinated interference silence pattern and the coordination are simultaneously configured in the cell
  • the silence pattern is interfered
  • the cell performs interference measurement on the uncoordinated interference silence pattern
  • the obtained interference measurement result is the above uncoordinated interference signal
  • the interference measurement
  • the result is the above-mentioned coordinable interference signal; or, all cells in the network uniformly configure the first uncoordinated interference silence pattern, and the second uncoordinated interference silence pattern is configured in the cell belonging to the same operator as the above-mentioned cell, in the second uncoordinated interference
  • the silent moment indicated by the silent pattern performs uncoordinated interference measurement.
  • the interference measurement result is the above uncoordinated interference signal, where the uncoordinated interference signal includes at least one of: interference with a plurality of network nodes belonging to different communication systems of the foregoing cell; and the same communication system as the above-mentioned cell, and The above cells belong to interferences of other cells of different operators.
  • detecting the channel state of the unlicensed carrier according to the foregoing policy 1 includes: determining that the unlicensed carrier is in an idle state if the sum of the uncoordinated interference signal and the coordinated interference signal is not greater than a first threshold.
  • the third threshold is configured by a primary cell (Primary Component Cell, PCell for short) to which the cell belongs.
  • a primary cell Primary Component Cell, PCell for short
  • detecting the channel state of the unlicensed carrier according to the foregoing policy 3 includes: determining that the unlicensed carrier is in an idle state, where the uncoordinated interference signal is not greater than a fourth threshold.
  • the CQI estimation value when the unlicensed carrier is occupied according to the foregoing interference measurement result includes: acquiring the useful signal energy when the unlicensed carrier is in the idle state before the previous idle state; and according to the useful signal energy and the foregoing The interference measurement result obtains a signal to noise ratio; the above CQI estimation value is obtained according to the above signal to noise ratio.
  • the specified time slot is configured by a base station.
  • the specified time slot is composed of information of at least one of: one or more Long Term Evolution (LTE) subframes, one or more LTE symbols, and one or more CCA observation durations.
  • LTE Long Term Evolution
  • the manner in which the base station configures the specified time slot includes one of the following: the base station configures the specified time slot periodically for the terminal; and the base station configures the designated time slot of the aperiod for the terminal, triggering the terminal to perform interference measurement. .
  • a receiving signal strength indication RSSI measuring method comprising: a base station transmitting an indication signal for measuring RSSI to a terminal; and the base station receiving a result of performing, by the terminal, RSSI measurement according to the indication signal.
  • the measured RSSI includes one of the following types: RSSI type 1: the measurement signal source is all signals received by the terminal, and includes signals of multiple network nodes belonging to different communication systems of the serving cell of the terminal; The above-mentioned serving cell belongs to the same communication system, and signals of other cells belonging to different operators of the above-mentioned serving cell; and signals of all cells belonging to the same communication system as the above-mentioned serving cell and belonging to the same operator as the above-mentioned serving cell; RSSI type Second: the measurement signal source includes signals of a plurality of network nodes belonging to different communication systems with the above serving cell; and signals of other cells belonging to the same communication system as the above-mentioned serving cell and belonging to different operators with the above-mentioned serving cell; RSSI type III The measurement signal source includes signals of a plurality of network nodes belonging to different communication systems with the foregoing serving cell; wherein the RSSI type 1 is used to measure the load of the entire unlicensed frequency layer; and the RSSI type 2 is
  • the foregoing indication signal includes: the foregoing base station configuring a measurement subframe set according to the measured type of the RSSI, where the measurement subframe set includes one of the following: a measurement subframe set one, configured to measure the RSSI type one;
  • the measurement subframe set 2 is configured to measure the foregoing RSSI type 2: on the second measurement subframe set 2, all the cells belonging to the same communication system as the foregoing serving cell and belonging to the same carrier as the serving cell are silent;
  • the measurement subframe set three For measuring the above RSSI type 3: on the above-mentioned measurement subframe set 3, all cells belonging to the same communication system as the above-mentioned serving cell and belonging to different operators of the above-mentioned serving cell are silent; meanwhile, belonging to the same communication system as the above-mentioned serving cell And all the cells belonging to the same operator as the above-mentioned serving cell are silent.
  • the determining, by the base station, the indication signal for measuring the RSSI includes: performing, by the base station, one or more RSSI type measurement configurations for the terminal, where the base station configures the terminal to measure one or more types of RSSI values, where the base station Receiving, by the terminal, one or more types of RSSI values; when the base station configures different measurement configurations for different types of RSSI measurement values, configuring a measurement trigger mode and/or a period measurement period value for the terminal; When different types of RSSI measurement values are configured in different reporting configurations, the terminal triggers the reporting of the triggering mode and/or the periodic reporting period value.
  • the RSSI described above is a linear average of the total received power observed over a specified measurement subframe.
  • the indication signal includes one or more measurement samples, wherein the one or more measurement samples are the basis for the terminal to perform RSSI measurement, and the one measurement sample includes one or more adjacent measurement subframes.
  • a method for measuring a received signal strength indication RSSI including: receiving, by a terminal, an indication signal of a measured RSSI sent by a base station; and performing, by the terminal, RSSI measurement according to the indication signal, to obtain a measurement result, And transmitting the above measurement result to the above base station.
  • the measured RSSI includes one of the following types: RSSI type 1: the measurement signal source is all signals received by the terminal, and includes signals of multiple network nodes belonging to different communication systems of the serving cell of the terminal; The above-mentioned serving cell belongs to the same communication system, and signals of other cells belonging to different operators of the above-mentioned serving cell; and signals of all cells belonging to the same communication system as the above-mentioned serving cell and belonging to the same operator as the above-mentioned serving cell; RSSI type Second: the measurement signal source includes signals of a plurality of network nodes belonging to different communication systems with the above serving cell; and signals of other cells belonging to the same communication system as the above-mentioned serving cell and belonging to different operators with the above-mentioned serving cell; RSSI type III The measurement signal source includes signals of a plurality of network nodes belonging to different communication systems with the foregoing serving cell; wherein the RSSI type 1 is used to measure the load of the entire unlicensed frequency layer; and the RSSI type 2 is
  • the indication signal includes a measurement subframe set configured by the base station according to the type of the RSSI, where the measurement subframe set includes one of the following: a measurement subframe set one, used to measure the RSSI type one; and a measurement subframe.
  • the second set is used to measure the foregoing RSSI type 2: on the second measurement subframe set 2, all the cells belonging to the same communication system as the foregoing serving cell and belonging to the same carrier as the serving cell are silent;
  • the measurement subframe set three is used for Measuring the above RSSI type three: on the foregoing measurement subframe set three, belonging to the same communication system as the above serving cell and with the foregoing serving cell All cells belonging to different operators are silent; at the same time, all cells belonging to the same communication system as the above-mentioned serving cell and belonging to the same operator as the above-mentioned serving cell are silent.
  • the foregoing indication signal includes: the foregoing base station performs one or more RSSI type measurement configurations for the terminal; wherein, when the base station configures the terminal to measure one or more types of RSSI values, the terminal may have one or more The type of the RSSI value is reported to the foregoing base station; when the base station configures different measurement configurations for different types of RSSI measurement values, the measurement trigger mode and/or the period measurement period value are configured for the terminal; When the RSSI measurement value is configured in different reporting configurations, the terminal triggers the reporting trigger mode and/or the periodic reporting period value.
  • the RSSI described above is a linear average of the total received power observed over a specified measurement subframe.
  • the indication signal includes one or more measurement samples, and the terminal performs RSSI measurement according to the one or more measurement samples, wherein one measurement sample includes one or more adjacent measurement subframes.
  • the foregoing terminal performs the RSSI measurement according to the indication signal, obtains the measurement result, and sends the foregoing measurement result to the base station, and: when the terminal performs the RSSI measurement based on a measurement sample, directly reporting the measurement result to the terminal
  • the measurement result corresponding to the plurality of measurement samples is smoothed and reported, or all the valid RSSI measurement values in one occupation period are smoothed and reported to the base station.
  • a channel quality indicator CQI estimating apparatus including: a detecting module, configured to detect a channel state of an unlicensed carrier; and an acquiring module, configured to when the channel state is an idle state And acquiring an interference measurement result of the unlicensed carrier of the cell in the specified time slot; and the estimating module is configured to obtain an initial CQI estimation value when the unlicensed carrier is occupied according to the foregoing interference measurement result.
  • the foregoing detecting module includes: a first acquiring unit, configured to obtain a clean channel estimation CCA policy; and a detecting unit, configured to detect a channel state of the unlicensed carrier according to the CCA policy; wherein the CCA policy includes one of the following: Strategy 1: simultaneously detecting the uncoordinated interference signal of the foregoing cell and the coordinable interference signal of the cell, obtaining a detection result, comparing a obtained CCA threshold with the obtained check result, and determining, according to the comparison result, whether the unlicensed carrier is in an idle state; Strategy 2: Simultaneously detecting the uncoordinated interference signal of the foregoing cell and the coordinable interference signal of the cell, obtaining a detection result, comparing the two CCA thresholds with the obtained inspection result, and determining, according to the comparison result, whether the unlicensed carrier is in an idle state.
  • Strategy 1 simultaneously detecting the uncoordinated interference signal of the foregoing cell and the coordinable interference signal of the cell, obtaining
  • the uncoordinated interference signal of the cell includes the following at least a: interference with a plurality of network nodes belonging to different communication systems of the foregoing cell; interference with other cells belonging to the same communication system and the cells belonging to different operators; and the coordinated interference signals of the cells include at least the following One: interferences belonging to the same communication system as the above-mentioned cells, and other cells belonging to the same carrier as the above-mentioned cells; interferences belonging to the same communication system as the above-mentioned cells, and other cells belonging to different operators of the above-mentioned cells.
  • the detecting unit is further configured to detect the uncoordinated interference signal of the cell and/or the coordinable interference signal of the cell, where the detecting manner includes one of the following: when configuring the uncoordinated interference silence pattern in the cell, The uncoordinated interference measurement is performed at the silent moment indicated by the above uncoordinated interference silence pattern, and the obtained interference measurement result is The non-coordinated interference signal; performing interference measurement at a time other than the silent moment indicated by the uncoordinated interference silence pattern, and the obtained interference measurement result includes the uncoordinated interference signal and the coordinated interference signal; the coordinated interference signal is the foregoing The difference between the sum of the uncoordinated interference signal and the above-mentioned coordinable interference signal and the above non-coordinated interference signal; or, when the uncoordinated interference silence pattern and the coordinable interference silence pattern are simultaneously configured in the cell, the cell is in the above uncoordinated interference silence Interference measurement is performed on the pattern, and the obtained interference measurement result is the above uncoordinated interference
  • the obtained interference measurement result is the foregoing uncoordinated interference signal, where the uncoordinated interference signal includes at least one of: interference with multiple network nodes belonging to different communication systems of the foregoing cell; and the same communication system as the above-mentioned cell, and The above cells belong to interferences of other cells of different operators.
  • the detecting unit is further configured to detect a channel state of the unlicensed carrier according to the foregoing policy 1, where the foregoing is determined if the sum of the uncoordinated interference signal and the coordinated interference signal is not greater than a first threshold.
  • the unlicensed carrier is in an idle state.
  • the detecting unit is further configured to detect, according to the foregoing policy 2, a channel state of the unlicensed carrier, where the uncoordinated interference signal is not greater than a second threshold, and the coordinated interference signal is not greater than a third threshold. Next, it is determined that the above unlicensed carrier is in an idle state.
  • the foregoing third threshold is configured by the primary cell PCell to which the cell belongs.
  • the detecting unit is further configured to detect, according to the foregoing policy 3, a channel state of the unlicensed carrier, where the uncoordinated interference signal is not greater than a fourth threshold, and determining that the unlicensed carrier is in an idle state.
  • the foregoing estimating module includes: a second acquiring unit, configured to acquire a useful signal energy when the unlicensed carrier is in the idle state before being used, and a third acquiring unit configured to use the energy of the useful signal according to the foregoing
  • the interference measurement result obtains a signal to noise ratio; and the estimating unit is configured to obtain the CQI estimation value according to the signal to noise ratio.
  • the specified time slot is configured by a base station.
  • the specified time slot is composed of information of at least one of: one or more Long Term Evolution (LTE) subframes, one or more LTE symbols, and one or more CCA observation durations.
  • LTE Long Term Evolution
  • the foregoing apparatus further includes: at least one of the following modules: a first configuration module configured to configure a periodic designated time slot for the terminal; and a second configuration module configured to configure the terminal to perform the aperiodic specified time
  • the gap triggers the above terminal to perform interference measurement.
  • a receiving signal strength indication RSSI measuring apparatus is provided.
  • the apparatus is applied to a base station, and the apparatus includes: a sending module, configured to send an indication signal for measuring RSSI to a terminal; and a receiving module, setting The result of performing RSSI measurement according to the above indication signal is received by the terminal.
  • the measured RSSI includes one of the following types: RSSI type 1: the measurement signal source is the foregoing terminal connection. All signals received, including signals of a plurality of network nodes belonging to different communication systems with the serving cell of the above terminal; signals belonging to the same communication system as the above-mentioned serving cell, and other cells belonging to different operators of the above-mentioned serving cell; a signal belonging to the same communication system as the above-mentioned serving cell and belonging to all cells of the same operator as the above-mentioned serving cell; RSSI type 2: the measurement signal source includes signals of a plurality of network nodes belonging to different communication systems with the above-mentioned serving cell; The foregoing serving cell belongs to the same communication system, and signals of other cells belonging to different operators of the foregoing serving cell; RSSI type 3: the measurement signal source includes signals of a plurality of network nodes belonging to different communication systems of the foregoing serving cell; The RSSI type 1 is used to measure the load of the entire unlicensed frequency layer; the
  • the foregoing indication signal includes: the foregoing base station configuring a measurement subframe set according to the measured type of the RSSI, where the measurement subframe set includes one of the following: a measurement subframe set one, configured to measure the RSSI type one;
  • the measurement subframe set 2 is configured to measure the foregoing RSSI type 2: on the second measurement subframe set 2, all the cells belonging to the same communication system as the foregoing serving cell and belonging to the same carrier as the serving cell are silent;
  • the measurement subframe set three For measuring the above RSSI type 3: on the above-mentioned measurement subframe set 3, all cells belonging to the same communication system as the above-mentioned serving cell and belonging to different operators of the above-mentioned serving cell are silent; meanwhile, belonging to the same communication system as the above-mentioned serving cell And all the cells belonging to the same operator as the above-mentioned serving cell are silent.
  • the foregoing indication signal includes: the foregoing base station performs one or more RSSI type measurement configurations for the terminal; wherein, when the base station configures the terminal to measure one or more types of RSSI values, the base station receives the terminal reporting One or more types of RSSI values; when the base station configures different measurement configurations for different types of RSSI measurement values, the measurement trigger mode and/or the period measurement period value are configured for the terminal; the base station is a different type of RSSI.
  • the terminal triggers the reporting of the triggering mode and/or the periodic reporting period.
  • the RSSI described above is a linear average of the total received power observed over a specified measurement subframe.
  • the indication signal includes one or more measurement samples, wherein the one or more measurement samples are the basis for the terminal to perform RSSI measurement, and the one measurement sample includes one or more adjacent measurement subframes.
  • a receiving signal strength indication RSSI measuring apparatus is further provided, where the apparatus is applied to a terminal, where the apparatus includes: a receiving module, configured to receive an indication signal of a measured RSSI sent by the base station; and a processing module And setting to perform RSSI measurement according to the indication signal, obtaining a measurement result, and transmitting the measurement result to the base station.
  • the measured RSSI includes one of the following types: RSSI type 1: the measurement signal source is all signals received by the terminal, and includes signals of multiple network nodes belonging to different communication systems of the serving cell of the terminal; The above-mentioned serving cell belongs to the same communication system, and signals of other cells belonging to different operators of the above-mentioned serving cell; and signals of all cells belonging to the same communication system as the above-mentioned serving cell and belonging to the same operator as the above-mentioned serving cell; RSSI type Second: the measurement signal source includes signals of a plurality of network nodes belonging to different communication systems with the above serving cell; and signals of other cells belonging to the same communication system as the above-mentioned serving cell and belonging to different operators with the above-mentioned serving cell; RSSI type III The measurement signal source includes a plurality of network nodes belonging to different communication systems from the above serving cell The above-mentioned RSSI type one is used to measure the load of the entire unlicensed frequency layer to implement the DFS function; the above-ment
  • the indication signal includes a measurement subframe set configured by the base station according to the type of the RSSI, where the measurement subframe set includes one of the following: a measurement subframe set one, used to measure the RSSI type one; and a measurement subframe.
  • the second set is used to measure the foregoing RSSI type 2: on the second measurement subframe set 2, all the cells belonging to the same communication system as the foregoing serving cell and belonging to the same carrier as the serving cell are silent;
  • the measurement subframe set three is used for Measuring the above RSSI type three: on the above-mentioned measurement subframe set three, all cells belonging to the same communication system as the above-mentioned serving cell and belonging to different operators of the above-mentioned serving cell are silent; meanwhile, belonging to the same communication system as the above-mentioned serving cell and with the above The serving cell belongs to all cells of the same carrier and is silent.
  • the foregoing indication signal includes: the foregoing base station performs one or more RSSI type measurement configurations for the terminal; wherein, when the base station configures the terminal to measure one or more types of RSSI values, the terminal may have one or more The type of the RSSI value is reported to the foregoing base station; when the base station configures different measurement configurations for different types of RSSI measurement values, the measurement trigger mode and/or the period measurement period value are configured for the terminal; When the RSSI measurement value is configured in different reporting configurations, the terminal triggers the reporting trigger mode and/or the periodic reporting period value.
  • the RSSI described above is a linear average of the total received power observed over a specified measurement subframe.
  • the indication signal includes one or more measurement samples, and the terminal performs RSSI measurement according to the one or more measurement samples, wherein one measurement sample includes one or more adjacent measurement subframes.
  • the processing module is further configured to: when the terminal performs the RSSI measurement based on one measurement sample, directly report the measurement result to the base station; when the terminal performs the RSSI measurement based on the multiple measurement samples, multiple The measurement result corresponding to the measurement sample is smoothed and then reported or all the valid RSSI measurement values in one occupation period are smoothed and reported to the base station.
  • the channel state of the unlicensed carrier is detected, and when the channel state is the idle state, the interference measurement result of the unlicensed carrier of the cell in the specified time slot is acquired; and when the unlicensed carrier is occupied according to the interference measurement result, Initial CQI estimate.
  • FIG. 1 is a flowchart of a channel quality indication CQI estimation method according to an embodiment of the present invention
  • FIG. 2 is a structural block diagram of a channel quality indication CQI estimating apparatus according to an embodiment of the present invention
  • FIG. 3 is a structural block diagram (1) of a channel quality indication CQI estimating apparatus according to an embodiment of the present invention
  • FIG. 4 is a structural block diagram (2) of a channel quality indication CQI estimating apparatus according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of a method for measuring a received signal strength indication RSSI according to an embodiment of the present invention
  • FIG. 6 is a block diagram showing a result of a method for measuring a received signal strength indication RSSI according to an embodiment of the present invention
  • FIG. 7 is a flowchart (1) of a method for measuring a received signal strength indication RSSI according to an embodiment of the present invention
  • FIG. 8 is a block diagram (2) of a result of a method for measuring a received signal strength indication RSSI according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a channel quality indication CQI estimation method according to an embodiment of the present invention. As shown in FIG. 1, the process includes the following steps:
  • Step S102 detecting a channel state of the unlicensed carrier
  • Step S104 Acquire an interference measurement result of the unlicensed carrier of the cell in the designated time slot when the channel state is the idle state;
  • Step S106 Acquire an initial CQI estimation value when the unlicensed carrier is occupied according to the interference measurement result.
  • the initial CQI estimation value when the unlicensed carrier is occupied can be obtained before the unlicensed carrier is occupied.
  • the measurement reference signal can only be sent to the terminal during the process of occupying the carrier.
  • the foregoing step S102 involves detecting the channel state of the unlicensed carrier.
  • the clean channel estimation CCA policy is first obtained, and the channel state of the unlicensed carrier is detected according to the CCA policy.
  • the CCA policy may include multiple forms.
  • the CCA policy includes one of the following: Policy 1: Simultaneously detecting the uncoordinated interference signal of the cell and the coordinated interference signal of the cell, and obtaining the detection result.
  • Strategy 2 simultaneously detecting the uncoordinated interference signal of the cell and the coordinable interference signal of the cell, and obtaining the detection result, using two The CCA threshold is compared with the obtained check result, and the unlicensed carrier is judged to be in an idle state according to the comparison result;
  • Strategy 3 only the uncoordinated interference of the cell is detected, the detection result is obtained, and the comparison result between the obtained check result and the CCA threshold is obtained.
  • the uncoordinated interference signal of the cell includes at least one of: interference with multiple network nodes of the cell belonging to different communication systems; and the cell belongs to the same communication system, and is different from the cell Other communities of the operator Interference;
  • the coordinable interference signal of the cell includes at least one of the following: interference with other cells belonging to the same communication system as the cell, and other cells belonging to the same carrier; cells belonging to the same communication system, and other cells belonging to different operators Cell interference. It should be emphasized that interferences belonging to the same communication system as the cells and other cells belonging to different operators of the cells may be used as coordinable interference or as uncoordinated interference.
  • the strength of the coordinable interference signal and the strength of the uncoordinated interference signal need to be determined in advance.
  • the uncoordinated interference measurement is performed by coordinating the silent moment indicated by the interference silent pattern, and the obtained interference measurement result is an uncoordinated interference signal; the interference measurement is performed at a time other than the silent moment indicated by the uncoordinated interference silent pattern, and the obtained interference measurement result includes Coordinating the interference signal and the coordinable interference signal; coordinating the interference signal as a non-coordinated interference signal and a difference between the sum of the coordinated interference signal and the uncoordinated interference signal; or, configuring a non-coordinating interference silence pattern and the same in the cell
  • the interference silence pattern is coordinated, the cell performs interference measurement on the uncoordinated interference silence pattern, and the obtained interference measurement result is an uncoordinated interference signal; the interference measurement is performed on the coordinated interference silence pattern,
  • the obtained interference measurement result is the uncoordinated interference signal, wherein the uncoordinated interference signal comprises at least one of: interference with a plurality of network nodes belonging to different communication systems of the cell; and the same communication system as the cell And interference with other cells of the cell belonging to different operators.
  • the strength of the uncoordinated interference signal of the cell and the strength of the coordinated interference signal of the cell are obtained.
  • the unlicensed carrier when detecting the channel state of the unlicensed carrier according to the policy 1, if the sum of the uncoordinated interference signal and the coordinable interference signal is not greater than the first threshold, determining that the unlicensed carrier is in an idle state.
  • the third threshold is configured by the primary cell PCell to which the cell belongs.
  • the uncoordinated interference signal when the channel state of the unlicensed carrier is detected according to the policy 3, the uncoordinated interference signal is determined to be in an idle state when the uncoordinated interference signal is not greater than the fourth threshold.
  • the foregoing step S106 relates to obtaining an initial CQI estimation value when the unlicensed carrier is occupied according to the interference measurement result.
  • acquiring the useful signal energy of the last occupied state before the unlicensed carrier is in the idle state according to the useful
  • the signal energy and the interference measurement result obtain a signal-to-noise ratio
  • the CQI estimation value is obtained according to the signal-to-noise ratio.
  • the designated time slot is configured by the base station.
  • the designated time slot may be one or more Long Term Evolution LTE subframes, and may also be one or more LTE symbols, and may also be one or more CCA observation durations.
  • the base station can be configured with a specified time slot.
  • the base station configures a periodic designated time slot for the terminal.
  • the base station configures the terminal to be non-periodic. Specify a time slot to trigger the terminal to perform interference measurement.
  • a channel quality indicator CQI estimating apparatus is also provided in this embodiment, and the apparatus is used to implement the foregoing embodiments and preferred embodiments, and details are not described herein.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 2 is a structural block diagram of a channel quality indication CQI estimating apparatus according to an embodiment of the present invention.
  • the apparatus includes: a detecting module 22 configured to detect a channel state of an unlicensed carrier; and an obtaining module 24 configured to be in When the channel state is the idle state, the interference measurement result of the unlicensed carrier of the cell in the designated time slot is acquired; and the estimating module 26 is configured to acquire the initial CQI estimation value when the unlicensed carrier is occupied according to the interference measurement result.
  • the detecting module 22 includes: a first acquiring unit 222, configured to acquire a clean channel estimation CCA policy; and a detecting unit 224, configured to detect a channel state of the unlicensed carrier according to the CCA policy, where the CCA policy includes one of the following: policy 1: simultaneously detecting the uncoordinated interference signal of the cell and the coordinable interference signal of the cell, and obtaining the detection result, using A CCA threshold is compared with the obtained check result, and the unlicensed carrier is judged to be in an idle state according to the comparison result; Strategy 2: simultaneously detecting the uncoordinated interference signal of the cell and the coordinable interference signal of the cell, and obtaining the detection result, using two The CCA threshold is compared with the obtained check result, and the unlicensed carrier is judged to be in an idle state according to the comparison result; Strategy 3: only the uncoordinated interference of
  • the detecting unit 224 is further configured to detect a non-coordinated interference signal of the cell and/or a coordinable interference signal of the cell, where the manner of detecting includes one of the following: when the cell configures the uncoordinated interference silence pattern, the uncoordinated interference The uncoordinated interference measurement is performed at the silent moment indicated by the silent pattern, and the obtained interference measurement result is an uncoordinated interference signal; the interference measurement is performed at a time other than the silent moment indicated by the uncoordinated interference silent pattern, and the obtained interference measurement result includes uncoordinated interference a signal and the coordinable interference signal; the coordinating interference signal is a difference between the uncoordinated interference signal and the sum of the coordinable interference signal and the uncoordinated interference signal; or, the uncoordinated interference silence pattern and the coordinated can be simultaneously configured in the cell When the silence pattern is interfered, the cell performs interference measurement on the uncoordinated interference silence pattern, and the obtained interference measurement result is an uncoordinated interference signal; the interference measurement
  • the net All the cells in the network are uniformly configured with the first uncoordinated interference silence pattern, and the second uncoordinated interference silence pattern is configured with the cell belonging to the same operator, and the uncoordinated interference measurement is performed at the silent moment indicated by the second uncoordinated interference silence pattern.
  • the obtained interference measurement result is the uncoordinated interference signal, where the uncoordinated interference signal includes at least one of: interference with a plurality of network nodes belonging to different communication systems of the cell; belonging to the same communication system as the cell, and belonging to the cell Interference from other cells of different operators.
  • the detecting unit 224 is further configured to detect a channel state of the unlicensed carrier according to the policy 1, where the unauthorized is determined if the sum of the uncoordinated interference signal and the coordinable interference signal is not greater than the first threshold.
  • the carrier is in an idle state.
  • the detecting unit 224 is further configured to detect a channel state of the unlicensed carrier according to the policy 2, where the non-coordinating interference signal is not greater than the second threshold, and the coordinated interference signal is not greater than the third threshold, determining the non The authorized carrier is in an idle state.
  • the third threshold is configured by the primary cell PCell to which the cell belongs.
  • the detecting unit 224 is further configured to detect a channel state of the unlicensed carrier according to the policy 3, wherein the unlicensed carrier is determined to be in an idle state when the uncoordinated interference signal is not greater than the fourth threshold.
  • the estimating module 26 includes: a second acquiring unit 262, configured to acquire useful signal energy when the unlicensed carrier is last occupied before the idle state; the third obtaining unit 264 is configured to generate energy according to the useful signal The signal to noise ratio is obtained from the interference measurement result; the estimation unit 266 is configured to obtain the CQI estimation value according to the signal to noise ratio.
  • the designated time slot is configured by the base station.
  • the designated time slot may be one or more Long Term Evolution LTE subframes, and may also be one or more LTE symbols, and may also be one or more CCA observation durations.
  • the apparatus further includes: a first configuration module 42 configured to configure a periodic designated time for the terminal.
  • the second configuration module 44 is configured to configure the terminal with a non-periodic designated time slot, and trigger the terminal to perform interference measurement.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are respectively located.
  • the first processor, the second processor, and the third processor In the first processor, the second processor, and the third processor.
  • FIG. 5 is A flowchart of a received signal strength indication RSSI measurement method according to an embodiment of the present invention is shown in FIG. 5, and the process includes the following steps:
  • Step S502 the base station sends an indication signal for measuring the RSSI to the terminal;
  • Step S504 the base station receives the result of the RSSI measurement performed by the terminal according to the indication signal.
  • the base station can configure the terminal to perform RSSI measurement to obtain the result of the RSSI measurement, so as to improve the accuracy of subsequent signal transmission.
  • the measured RSSI comprises one of the following types: RSSI type one: the measurement signal source is all signals received by the terminal, including signals of a plurality of network nodes belonging to different communication systems with the serving cell of the terminal; a signal belonging to the same communication system as the serving cell and belonging to other cells of the different operator to the serving cell; and signals belonging to the same communication system as the serving cell and belonging to all cells of the same operator as the serving cell; RSSI type 2: measurement The signal source includes signals of a plurality of network nodes belonging to different communication systems with the serving cell; and signals of other cells belonging to the same communication system as the serving cell and belonging to different operators of the serving cell; RSSI type 3: the measurement signal source includes and The serving cell belongs to signals of multiple network nodes of different communication systems; wherein RSSI type 1 is used to measure the load of the entire unlicensed frequency layer; RSSI type 2 is used to measure the load of the non-operator LAA system; RSSI type Third, it is used to measure the load of non-LAA systems.
  • RSSI type 1
  • the indication The signal may include: the base station configuring the measurement subframe set according to the measured type of the RSSI, where the measurement subframe set includes one of: a measurement subframe set one for measuring RSSI type one; and a measurement subframe set two, used for Measuring RSSI type 2: On the measurement subframe set 2, the same communication system as the serving cell, and all cells belonging to the same carrier as the serving cell are silent; the measurement subframe set 3 is used to measure the RSSI type 3: in the measurement sub
  • the frame set 3 belongs to the same communication system as the serving cell, and is silent with all cells belonging to different operators of the serving cell; meanwhile, it belongs to the same communication system as the serving cell, and is silent with all cells belonging to the same operator of the serving cell.
  • the determining, by the base station, the indication signal for measuring the RSSI may include: the base station performing one or more RSSI type measurement configurations for the terminal; wherein the base station configures the terminal to measure one or more types of RSSI values. Receiving, by the base station, one or more types of RSSI values; when the base station configures different measurement configurations for different types of RSSI measurement values, configuring a measurement trigger mode and/or a periodic measurement period value for the terminal; When different reporting configurations are configured for different types of RSSI measurements, the terminal is configured to report the triggering mode and/or the periodic reporting period value.
  • the indication signal includes one or more measurement samples, wherein the one or more measurement samples are the basis for the terminal to perform RSSI measurement, and one measurement sample includes one or more adjacent measurement sub-frames .
  • the RSSI is a linear average of the total received power observed over a specified measurement subframe.
  • FIG. 6 is a block diagram showing a result of a method for measuring a received signal strength indication RSSI according to an embodiment of the present invention.
  • the apparatus is applied to a base station.
  • the apparatus includes: a sending module 62 configured to send an indication signal for measuring RSSI to a terminal.
  • the receiving module 64 is configured to receive a result of the RSSI measurement performed by the terminal according to the indication signal.
  • the measured RSSI includes one of the following types: RSSI type one: the measurement signal source is all signals received by the terminal, including signals of multiple network nodes belonging to different communication systems of the serving cell of the terminal; and the serving cell belongs to Signals of the same communication system and other cells belonging to different operators of the serving cell; and signals of all cells belonging to the same communication system as the serving cell and belonging to the same operator as the serving cell; RSSI type 2: measurement signal source includes The serving cell belongs to signals of multiple network nodes of different communication systems; and signals belonging to the same communication system as the serving cell and other cells belonging to different operators of the serving cell; RSSI type 3: the measurement signal source includes different from the serving cell Signals of multiple network nodes of the communication system; wherein RSSI type one is used to measure the load of the entire unlicensed frequency layer; RSSI type two is used to measure the load condition of the non-operator LAA system; and RSSI type three is used for Measure the load of non-LAA systems.
  • RSSI type one is used to measure the load of the entire unlicensed
  • the indication signal includes: the base station configures the measurement subframe set according to the type of the measured RSSI, where the measurement subframe set includes one of the following: a measurement subframe set one, used to measure the RSSI type one; and a measurement subframe set two.
  • the measurement subframe set includes one of the following: a measurement subframe set one, used to measure the RSSI type one; and a measurement subframe set two.
  • the measurement subframe set 3 is used to measure the RSSI type 3: on the measurement subframe set 3, the same communication system as the serving cell belongs to the same and is silent with all cells belonging to different operators of the serving cell; meanwhile, it belongs to the same communication system as the serving cell And all the cells belonging to the same operator of the serving cell are silent, where all the cells belonging to the same communication system as the serving cell and the serving cell belong to different operators are silent, meaning that all cells (including the serving cell) do not perform data transmission. And/or receiving; all cells belonging to the same communication system as the serving cell and belonging to the same operator as the serving cell are silent, It means that all cells (including serving cells) do not perform data transmission and/or reception.
  • the indication signal includes: the base station performs one or more RSSI type measurement configurations for the terminal; wherein, when the base station configures the terminal to measure one or more types of RSSI values, the base station receiving terminal reports one or more types.
  • the RSSI value when the base station configures different measurement configurations for different types of RSSI measurement values, configures the measurement trigger mode and/or the period measurement period value for the terminal; when the base station configures different reporting configurations for different types of RSSI measurement values
  • the terminal is configured to report the trigger mode and/or the period value reported by the period.
  • the RSSI is a linear average of the total received power observed over the specified measurement subframe.
  • the indication signal comprises one or more measurement samples, wherein the one or more measurement samples are the basis for the terminal to perform RSSI measurement, the one measurement sample comprising one or more adjacent measurement subframes.
  • FIG. 7 is a flowchart (1) of a received signal strength indicating RSSI measuring method according to an embodiment of the present invention. As shown in FIG. 7, the flow includes the following steps. step:
  • Step S702 the terminal receives an indication signal of the measured RSSI sent by the base station
  • Step S704 the terminal performs RSSI measurement according to the indication signal, obtains a measurement result, and sends the measurement result to the base station.
  • the base station can configure the terminal to perform RSSI measurement to obtain the result of the RSSI measurement, so as to improve the accuracy of subsequent signal transmission.
  • the RSSI can include multiple types, which are exemplified below.
  • the measured RSSI comprises one of the following types: RSSI type one: the measurement signal source is all signals received by the terminal, including signals of a plurality of network nodes belonging to different communication systems with the serving cell of the terminal; a signal belonging to the same communication system as the serving cell, and other cells belonging to different operators of the serving cell; and signals belonging to the same communication system as the serving cell and belonging to the same operator of the same cell; RSSI type 2
  • the measurement signal source includes signals of a plurality of network nodes belonging to different communication systems with the serving cell; and signals of other cells belonging to the same communication system as the serving cell and belonging to different operators of the serving cell;
  • RSSI type 3 measurement signal The source includes signals of a plurality of network nodes belonging to different communication systems with the serving cell; wherein RSSI type one is used to measure the load of the entire unlicensed frequency layer; and the RSSI type two is used to measure the load of the non-operator LAA system. Situation; the
  • the indication signal may include multiple types.
  • the indication signal may include a measurement subframe set configured by the base station according to the type of the RSSI, where the measurement subframe set includes one of the following: the measurement subframe set one, For measuring RSSI type one; measuring subframe set two, for measuring RSSI type two: on the measurement subframe set two, belonging to the same communication system as the serving cell, and all cells belonging to the same carrier as the serving cell are silent; measurement The subframe set 3 is used to measure the RSSI type 3: on the measurement subframe set 3, belongs to the same communication system as the serving cell, and is silent with all cells belonging to different operators of the serving cell; meanwhile, belongs to the same communication system as the serving cell And silence all cells belonging to the same carrier as the serving cell.
  • the indication signal may include: the base station performs one or more RSSI type measurement configurations for the terminal; wherein, when the base station configuration terminal measures one or more types of RSSI values, the terminal will one or more Each type of RSSI value is reported to the base station; the base station configures different types of RSSI measurements.
  • the measurement configuration is configured, the measurement trigger mode and/or the period value of the period measurement are configured for the terminal.
  • the base station configures different reporting configurations for different types of RSSI measurement values, the terminal is configured to report the trigger mode and/or the periodic report. Period value.
  • the indication signal can include one or more measurement samples, and the terminal performs RSSI measurement based on one or more measurement samples, wherein one measurement sample includes one or more adjacent measurement sub-frames.
  • the RSSI is a linear average of the total received power observed over a specified measurement subframe.
  • the measurement result is directly reported to the base station; when the terminal performs the RSSI measurement based on the multiple measurement samples, the measurement corresponding to the multiple measurement samples is performed. After the result is smoothed, the report is reported or all valid RSSI measurements in a lifetime are smoothed and reported to the base station. Further, the terminal performs the RSSI measurement according to the indication signal, obtains the measurement result, and sends the measurement result to the base station.
  • the device is applied to a terminal. As shown in FIG. 8, the device includes: a receiving module 82 configured to receive a measurement sent by a base station. An indication signal of the RSSI; the processing module 84 is configured to perform an RSSI measurement according to the indication signal, obtain a measurement result, and send the measurement result to the base station.
  • the measured RSSI includes one of the following types: RSSI type one: the measurement signal source is all signals received by the terminal, including signals of multiple network nodes belonging to different communication systems of the serving cell of the terminal; and the service a signal belonging to the same communication system and other cells belonging to different operators of the serving cell; and signals belonging to the same communication system as the serving cell and all cells belonging to the same operator as the serving cell; RSSI type 2: measurement signal The source includes signals of a plurality of network nodes belonging to different communication systems of the serving cell; and signals of other cells belonging to the same communication system as the serving cell and belonging to different operators of the serving cell; RSSI type 3: measuring signal source includes The serving cell belongs to signals of multiple network nodes of different communication systems; wherein, the RSSI type one is used to measure the load of the entire unlicensed frequency layer to implement the DFS function; and the RSSI type 2 is used to measure the non-operator LAA system. Load situation; the RSSI type III is used to measure the load of non-LAA systems. condition.
  • the indication signal includes a measurement subframe set configured by the base station according to the type of the RSSI, where the measurement subframe set includes one of: a measurement subframe set one, configured to measure the RSSI type one; and a measurement subframe Set 2, for measuring the RSSI type 2: on the measurement subframe set 2, all cells belonging to the same communication system as the serving cell and belonging to the same operator as the serving cell are silent; the measurement subframe set 3 is used to measure the RSSI type three: on the measurement subframe set three, all cells belonging to the same communication system as the serving cell and belonging to different operators of the serving cell are silent; at the same time, belong to the same communication system as the serving cell and belong to the same operator as the serving cell All the communities are silent.
  • the indication signal includes: the base station performs one or more RSSI type measurement configurations for the terminal; wherein, when the base station configures the terminal to measure one or more types of RSSI values, the terminal performs one or more types of The RSSI value is reported to the base station; when the base station configures different measurement configurations for different types of RSSI measurement values, the terminal is configured with a measurement trigger mode and/or a periodic measurement period value; and the base station configures different types of RSSI measurement values differently.
  • the terminal is configured to report the trigger mode and/or the period value reported by the period.
  • the RSSI is a linear average of the total received power observed over the specified measurement subframe.
  • the indication signal includes one or more measurement samples, and the terminal performs RSSI measurement according to the one or more measurement samples, wherein one measurement sample includes one or more adjacent measurement subframes.
  • the processing module is further configured to directly report the measurement result to the base station when the terminal performs the RSSI measurement based on one measurement sample; and when the terminal performs the RSSI measurement based on the multiple measurement samples, the multiple measurement samples are corresponding to After the measurement result is smoothed, the report is reported or all valid RSSI measurement values in one occupied period are smoothed and reported to the base station.
  • CQI measurement and interference measurement may be inaccurate because the reference signal used for CSI measurement is discontinuously transmitted on the unlicensed carrier, and the LAA cell may be on the unlicensed carrier and the authorized carrier. Carrier switching between them, a single measurement behavior will not meet the needs of carrier switching.
  • the present optional embodiment provides a method and system for unlicensed carrier measurement, which utilizes the interference measurement result of the UE during the CCA and the useful signal of the previous occupation period according to the CCA policy of the LAA cell.
  • Information such as energy and CQI measurement results are used to estimate the CQI of the current occupancy period.
  • the LAA eNB can obtain the CQI for data scheduling transmission in time.
  • the pre-configured LAA ZP CSI-RS can be used for more accurate interference measurement.
  • different ZP CSI-RS can be configured for the Interference measurements to accurately measure interference on licensed and unlicensed carriers.
  • the interference measurement time slot is not limited to the CCA observation period, and may be other time slots, as long as the interference situation experienced by the target eNB in the time slot is similar to the interference condition of the occupation period.
  • the interference measurement time slot may be configured by the base station, and may be one or more LTE subframes, one or more LTE symbols, and one or more CCA observation durations.
  • the base station may configure a periodic interference measurement time slot for the UE, or may indicate an aperiodic measurement time slot, and trigger the UE to perform interference measurement.
  • the DCI carried by the PCell/Scell PDCCH/EPDCCH may be used for indication.
  • the LTE eNB prepares to perform downlink or uplink+downlink data transmission on an unlicensed carrier.
  • the LAA base station needs to perform Clear Channel Access (CCA) to obtain available channel information.
  • CCA Clear Channel Access
  • the LAA eNB accesses the channel, enters the occupation period, and starts to send measurement reference signals for the UE to perform measurement. If the LAA cell can switch between the licensed carrier and the unlicensed carrier, different interference measurement reference signals should also be configured for the licensed carrier and the unlicensed carrier.
  • CCA Clear Channel Access
  • Step 1 The LAA cell determines the CCA policy.
  • the optional CCA policies for the LAA cell include:
  • Strategy 1 Simultaneous detection of inter-system interference and co-system interference, using a CCA threshold.
  • Strategy 2 Simultaneous detection of inter-system interference and co-system interference, using two CCA thresholds.
  • the LAA cell may use a network pre-agreed CCA policy, such as all LAA cells, or LAA cells belonging to the same operator, and may agree to use the same CCA policy.
  • a network pre-agreed CCA policy such as all LAA cells, or LAA cells belonging to the same operator, and may agree to use the same CCA policy.
  • the Pcell may indicate which CCA policy the LAA cell uses.
  • the method of the indication may be performed by transmitting a DCI through a Physical Downlink Control Channel (PDCCH) and an Enhanced Physical Downlink Control Channel (PDCCH).
  • PDCH Physical Downlink Control Channel
  • PDCCH Enhanced Physical Downlink Control Channel
  • Step 2 Optionally, the LAA cell is configured with a silent pattern.
  • the LAA cell silence pattern includes frequency information and time information of the LAA cell silence; wherein the frequency information includes a silent center frequency and bandwidth information, and may also be represented by a subchannel number or a subchannel number + bandwidth; wherein the time information mainly includes silence Moment and silence.
  • the LAA cell can use the timing of the primary cell as the synchronization reference.
  • the LAA cell can be configured with multiple silent patterns, for example, the LAA cell configuration silent pattern 1 from different operators.
  • the silent pattern the LAA cell does not perform downlink data transmission and uplink data reception, and any LAA cell performs interference measurement.
  • the interference obtained is all-system interference, that is, the external interference of the LAA system.
  • the LAA cell can be configured with additional silent patterns.
  • the LAA cell from the operator OP1 can be configured with a silent pattern 2, in which the LAA cell from the operator OP1 does not perform downlink data transmission and uplink data reception.
  • Interference measurement is performed, and the obtained interference includes both inter-system interference and LAA cell interference of other operators except the operator OP1.
  • the LAA cell from other operators in the network can also configure the silent pattern inside the carrier network.
  • Step 3 The LAA cell performs CCA according to the CCA policy.
  • the LAA cell uses CCA policy 1, and only detects inter-system interference, the LAA cell can perform interference measurement as follows.
  • the LAA cell is only configured with a different system interference silence pattern.
  • the LAA cell performs the heterogeneous system interference measurement at the silent moment indicated by the predetermined different system interference silence pattern. At this time, the measured interference is all-system interference, which is recorded as I_out;
  • the LAA cell performs interference measurement at a time other than the silent moment indicated by the predetermined different system interference silence pattern. At this time, the measured interference includes the same system interference and the different system interference, and is recorded as I_total;
  • the LAA cell is configured with a different system interference silence pattern and the same system interference silence pattern
  • the LAA cell performs the heterogeneous system interference measurement on the predetermined different system interference silence pattern. At this time, the measured interference only contains the heterogeneous system interference, which is recorded as I_out;
  • the LAA cell performs interference measurement on the predetermined same system interference silence pattern. At this time, the measured interference only includes the same system interference, and is recorded as I_in;
  • TH1 a predetermined interference threshold
  • the LAA cell uses CCA policy 2, that is, detects inter-system interference and co-system interference simultaneously, two interference thresholds are used; then the inter-system interference energy I_out is compared with a predetermined inter-system interference threshold two TH2, and the same system interference energy I_in is used.
  • CCA strategy 2 is that according to the interference processing capability of the LAA cell, the same system CCA threshold can be dynamically adjusted. If the LAA cell uses a certain system CCA threshold and the receiving performance is not ideal, the system can be gradually lowered according to a certain step size. CCA threshold; if the LAA cell uses a certain system CCA threshold and the receiving performance is very good, the CCA threshold of the same system can be gradually increased according to a certain step size.
  • Step 4 The LAA cell configures an interference measurement reference signal (optional step).
  • the CCA result can only indicate that there is almost no inter-system interference, and the same system interference still exists, and the interference measurement reference signal needs to be configured, so that the UE performs interference measurement.
  • the LAA ZP CSI-RS may be configured for the LAA cell 1. On the RE configured with the LAA ZP CSI-RS, the LAA cell 1 is silent, and no transmission is performed, and other cells transmit normally.
  • the LAA cell can be configured with multiple ZP CSI-RS configurations, some of which are used for interference measurement on the licensed carrier. Partially used for interference measurements on unlicensed carriers. Different ZP CSI-RSs can also be configured for unlicensed carriers with different carrier frequencies.
  • Step 5 The LAA cell accesses the channel.
  • the LAA cell accesses the channel, starts transmitting the measurement reference signal, and performs data transmission.
  • the period during which the LAA cell accesses the channel to release the channel is called the occupation period.
  • the default transmission mode Transmission Mod, TM for short
  • MCS Modulation and Coding Scheme
  • the data transmission can also be performed using the transmission mode TM and the MCS indicated by the Pcell.
  • the default transmission mode is TM2
  • the diversity transmission mode is sent by default using MCS 0.
  • SINR Signal to Interference plus Noise Ratio
  • the useful signal power S at that time remains unchanged, and only the interference and noise are calculated, and the CQI is obtained by checking the SINR-CQI mapping table according to the SINR. Different interference noise measurements can be used depending on the CCA strategy used.
  • CCA policy 1 If the LAA cell uses CCA policy 1, ie, detects both inter-system interference and co-system interference, an interference threshold is used; CCA idle indicates that the total interference of the same system and the different system remains within an acceptable range; the following method can be used for CQI estimate:
  • the eNB Before the UE can perform CQI estimation using the measurement reference signal transmitted by the LAA eNB, the eNB can acquire the CQI as follows:
  • the LAA eNB may use the CQI measurement result of the last occupation period to perform data scheduling transmission.
  • the PCell may configure the UE to perform interference measurement on the target cell. If the CCA result determines that the channel is idle, the interference measurement result during the CCA may approximate the interference noise energy Itotal of the occupied period. According to the assumption that the reference signal transmission power of the cell remains unchanged with the last occupancy, that is, the useful signal power remains unchanged, and the useful signal energy estimated by the reference signal in the last occupation period is approximated as the useful signal energy of the current occupation period.
  • the measurement result during the CCA can be reported by the Pcell, or it can be reported immediately after the Scell occupancy period begins.
  • the LAA eNB can simultaneously obtain the CQI measurement results of the last occupancy period and the CQI measurement results during the CCA period, then one of the CQIs may be selected for data scheduling transmission; or two CQIs may be used to derive a new one.
  • the SINR measurement result of the last occupancy period and the SINR measurement result during the CCA period can also be used to derive a new SINR result, and then the CINR is derived using the SINR result.
  • the UE After the LAA cell enters the occupation period, the UE receives the measurement reference signal, performs effective signal power and interference power measurement, and Calculate the SINR and introduce the CQI.
  • the estimated CQI result can be reported in the current occupation period. If it cannot be reported before the end of the occupation period, it can be reported through the Pcell, so that the LAA cell can refer to it at the next occupation.
  • the CCA idle indicates that the inter-system interference remains within the acceptable range, and the same system interference still exists; during the occupation period, the LAA interference measured by the UE should include two parts, and some of them are different systems. Interference with Another, part of the same system interference ILAA, you can use the following methods to perform CQI estimation:
  • the eNB may acquire the CQI as follows before the UE can perform CQI estimation using the measurement reference signal transmitted by the LAA eNB.
  • the LAA eNB may use the CQI measurement result of the last occupation period to perform data scheduling and transmission before the new CQI measurement result is reported. Since the same system interference may change during the two occupation periods, There is a certain amount of error in this way.
  • the PCell may configure the UE to perform interference measurement on the target cell, and if the CCA result determines that the channel is idle, the UE is used.
  • the interference measurement result during CCA is taken as the initial value of the total system interference noise energy Itotal.
  • the measurement result during the CCA can be reported by the Pcell, or it can be reported immediately after the Scell occupancy period begins.
  • the LAA eNB can simultaneously obtain the CQI measurement results of the last occupancy period and the CQI measurement results during the CCA period, then one of the CQIs may be selected for data scheduling transmission; or two CQIs may be used to derive a new one.
  • the SINR measurement result of the last occupancy period and the SINR measurement result during the CCA period can also be used to derive a new SINR result, and then the CINR is derived using the SINR result.
  • a Received Signal Strength Indicator (RSSI) measurement method including: the base station configures the terminal to perform RSSI measurement; and the terminal performs RSSI measurement and reporting according to the configuration of the base station;
  • RSSI Received Signal Strength Indicator
  • the base station configures the RSSI measured by the UE to include one of the following types:
  • the measurement signal source includes all signals received by the terminal, including different communication systems with the cell. Signals of a plurality of network nodes; signals belonging to the same communication system as the cells and belonging to other cells of the different operators; and belonging to the same communication system as the serving cell, and belonging to the same operation as the cell Signals of all cells of the business;
  • the measurement signal source includes signals of a plurality of network nodes belonging to different communication systems with the cell; and signals of other cells belonging to the same communication system as the cells and belonging to different operators of the cells;
  • the measurement signal source includes signals of a plurality of network nodes belonging to different communication systems of the cell;
  • the base station is configured to measure the subframe set for the measured RSSI type:
  • Configuring a measurement subframe set 2 for measuring RSSI type 2 on the subframe set 2, belonging to the same communication system as the cell, and being silent with all cells belonging to the same operator of the cell;
  • RSSI type one which can be used to measure the load of the entire unlicensed frequency layer, for Dynamic Frequency Selection (DFS) function
  • RSSI type 2 available To measure the load of the non-LAA system
  • RSSI type III can be used to measure the load of non-LAA systems.
  • the base station configuration terminal measures one or more types of RSSI values and reports one or more types of RSSI values.
  • the base station can configure the terminal to measure the RSSI values of 1, 2, and 3 types, and report all the measured RSSI values.
  • the terminal can also be configured to measure multiple types of RSSI values, but only report some of the RSSI values.
  • the base station can configure different measurement configurations for different types of RSSI measurement values, including measurement trigger mode (periodic reporting/non-periodic reporting), periodic measurement period value, and the like.
  • measurement trigger mode periodic reporting/non-periodic reporting
  • periodic measurement period value periodic measurement period value
  • the following configuration can be performed: the RSSI type 1 is configured as a period measurement; the RSSI type 2 is configured to trigger a measurement; and the RSSI type 3 is configured as a period measurement.
  • the base station can configure different reporting configurations for different types of RSSI measurement values, including the reporting trigger mode (periodic reporting/non-periodic reporting) and the periodic reporting period value.
  • the configuration of the RSSI type is configured as a periodic report; the RSSI type 2 is configured as a trigger report; and the RSSI type 3 is configured as a periodic report.
  • the RSSI measured by the terminal is defined as the linear average of the total received power observed over the specified measurement subframe.
  • the terminal may perform RSSI measurements based on one or more measurement samples, one measurement sample may contain one or more adjacent measurement subframes. If the RSSI measurement is performed based on one measurement sample, the measurement result is directly reported; if the RSSI measurement is performed based on the plurality of measurement samples, the measurement results of the plurality of measurement samples may be smoothed and reported; or the occupation period may be used once. All valid RSSI measurements are smoothed and reported.
  • the method and system for unlicensed carrier measurement enable the measurement behavior of the LTE system. It can adapt to the situation that the reference signal on the unlicensed carrier is discontinuously transmitted, accurately reflect the channel condition and the interference condition, and can adapt to the measurement requirements of the cell switching on the unlicensed carrier and the authorized carrier.
  • a storage medium is further provided, wherein the software includes the above-mentioned software, including but not limited to: an optical disk, a floppy disk, a hard disk, an erasable memory, and the like.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the channel state of the unlicensed carrier is detected; when the channel state is the idle state, the interference measurement result of the unlicensed carrier of the cell in the specified time slot is acquired; and when the unlicensed carrier is occupied according to the interference measurement result
  • the initial CQI estimate is solved.

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Abstract

本发明公开了一种信道质量指示CQI估计方法及装置，其中，该方法包括：检测非授权载波的信道状态；在信道状态为空闲状态时，获取小区在指定时隙的非授权载波的干扰测量结果；根据干扰测量结果获取占用该非授权载波时的初始CQI估计值。通过本发明解决了相关技术中单一的测量行为无法满足载波切换的需求的问题，进而提高了CQI测量的准确性。

Description

信道质量指示CQI估计方法及装置 技术领域
本发明涉及通信领域，具体而言，涉及一种信道质量指示CQI估计方法及装置。
背景技术
长期演进/高级长期演进(Long Term Evolution Advanced，简称为LTE/LTE-A)系统是由第三代合作伙伴计划(3rd Generation Partnership Project，简称为3GPP)组织制定的第四代移动通信标准。LTE支持多种带宽分配：1.4MHz，3MHz，5MHz，10MHz，15MHz和20MHz等，频谱分配更加灵活。LTE目前主要工作在授权频谱上，不同地区选择的频段也有所不同。北美网络计划使用700/800和1700/1900MHz；欧洲网络计划使用800，1800，2600MHz；亚洲网络计划使用1800和2600MHz；澳洲网络计划使用1800MHz。
为了支持更宽的频带，LTE-A引入载波聚合(Carrier Aggregation，简称为CA)，基本思想是通过将多个连续或离散的载波聚合在一起，形成更宽的频谱。通过载波聚合，LTE-A最大可支持100MHz带宽。
随着数据业务的不断增长，授权频谱资源越来越拥挤和紧张。因此一个自然的想法就是在授权载波的辅助下，使用载波聚合等方法将LTE/LTE-A系统扩展到非授权频谱资源上使用。
在授权载波上，LTE演进型基站(E-UTRAN NodeB，简称为eNB)向用户设备(User Equipment，简称为UE)发送用于信道状态信息(Channel State information，简称为CSI)测量的参考信号，包括用于CSI测量的非零功率信道状态信息参考信号(,Non-Zero Power CSI reference signals，简称为NZP CSI-RS)和用于干扰测量的零功率信道状态信息参考信号(Zero Power CSI reference signals，简称为ZP CSI-RS)；UE接收到测量参考信号，进行CSI测量并将测量结果上报给eNB；eNB依靠UE上报的CSI信息来进行精确地数据调度发送，CSI测量包括预编码矩阵指示(Precoding Matrix Indicator，简称为PMI)、信道质量指示(Channel Quality Indicator，简称为CQI)、干扰测量等内容。
在非授权频谱上，除了LTE系统，还有其他无线保真(Wireless Fidelity，简称为WiFi)、雷达(Radar)等系统的存在，为了公平性，各节点需要通过竞争获得信道使用权，在使用信道前，需要先进行干净信道评估(Clear channel access，简称为CCA)，只有CCA结果表示信道空闲，网络节点才能接入信道，进行必要的参考信号和数据的发送。因此，用于CSI测量的参考信号的传输密度将与eNB接入信道的成功率密切相关。若eNB接入信道的频率较低，测量参考信号的传输密度也将大大降低，一方面，由于测量样本较少，CQI和干扰测量的结果将会不准确；另一方面，如果CQI测量和干扰测量只能在信道占用期进行，由于测量上报存在一定的延时，eNB不能及时得到测量结果，甚至有可能在eNB结束信道占用之前仍然无法获得信道测量结果。
另外，授权载波辅助接入(Licensed Assisted Access，简称为LAA)小区可能选择在非授权载波上或者授权载波上进行数据发送，由于授权载波上的干扰情况与非授权载波上的干扰情况可能存在较大区别，目前单一的测量行为将无法满足载波切换的需求。
针对相关技术中，单一的测量行为无法满足载波切换的需求的问题，还未提出有效的解决方案。
发明内容
本发明提供了一种信道质量指示CQI估计方法及装置，以至少解决相关技术中单一的测量行为无法满足载波切换的需求的问题。
根据本发明实施例的一个方面，提供了一种信道质量指示CQI估计方法，包括：检测非授权载波的信道状态；在上述信道状态为空闲状态时，获取小区在指定时隙的上述非授权载波的干扰测量结果；根据上述干扰测量结果获取占用上述非授权载波时的初始CQI估计值。
可选地，检测非授权载波的信道状态包括：获取干净信道估计CCA策略；根据上述CCA策略检测非授权载波的信道状态；其中，上述CCA策略包括以下之一：策略1：同时检测上述小区的不可协调干扰信号和上述小区的可协调干扰信号，得到检测结果，使用一个CCA阈值与得到的检查结果进行比较，依据比较结果判断上述非授权载波是否处于空闲状态；策略2：同时检测上述小区的不可协调干扰信号和上述小区的可协调干扰信号，得到检测结果，使用两个CCA阈值与得到的检查结果进行比较，依据比较结果判断上述非授权载波是否处于空闲状态；策略3：仅检测上述小区的不可协调干扰，得到检测结果，根据得到的检查结果与CCA阈值的比较结果，判断上述非授权载波是否处于空闲状态；其中，上述小区的不可协调干扰信号包括以下至少之一：与上述小区属于不同通信系统的多个网络节点的干扰；与上述小区属于相同通信系统，并且与上述小区属于不同运营商的其他小区的干扰；上述小区的可协调干扰信号包括以下至少之一：与上述小区属于相同通信系统，并且与上述小区属于相同运营商的其他小区的干扰；与上述小区属于相同通信系统，并且与上述小区属于不同运营商的其他小区的干扰。
可选地，检测上述小区的不可协调干扰信号和/或上述小区的可协调干扰信号的方式包括以下之一：在上述小区配置不可协调干扰静默图样时，在上述不可协调干扰静默图样指示的静默时刻进行不可协调干扰测量，得到的干扰测量结果为上述不可协调干扰信号；在上述不可协调干扰静默图样指示的静默时刻之外的时刻进行干扰测量，得到的干扰测量结果包括上述不可协调干扰信号和上述可协调干扰信号；上述可协调干扰信号为上述不可协调干扰信号和上述可协调干扰信号总和与上述不可协调干扰信号的差值；或者，在上述小区同时配置了不可协调干扰静默图样和可协调干扰静默图样时，上述小区在上述不可协调干扰静默图样上进行干扰测量，得到的干扰测量结果为上述不可协调干扰信号；在上述可协调干扰静默图样上进行干扰测量，得到的干扰测量结果为上述可协调干扰信号；或者，网络中所有小区统一配置第一不可协调干扰静默图样，与上述小区属于相同运营商的小区配置了第二不可协调干扰静默图样，在上述第二不可协调干扰静默图样指示的静默时刻进行不可协调干扰测量，得 到的干扰测量结果为上述不可协调干扰信号，其中，该不可协调干扰信号包括以下至少之一：与上述小区属于不同通信系统的多个网络节点的干扰；与上述小区属于相同通信系统，并且与上述小区属于不同运营商的其他小区的干扰。
可选地，根据上述策略1检测上述非授权载波的信道状态包括：在上述不可协调干扰信号和上述可协调干扰信号的总和不大于第一阈值的情况下，确定上述非授权载波处于空闲状态。
可选地，根据上述策略2检测上述非授权载波的信道状态包括：在上述不可协调干扰信号不大于第二阈值，并且上述可协调干扰信号不大于第三阈值的情况下，确定上述非授权载波处于空闲状态。
可选地，上述第三阈值由上述小区所属的主小区(Primary Component Cell，简称为PCell)进行配置。
可选地，根据上述策略3检测上述非授权载波的信道状态包括：在上述不可协调干扰信号不大于第四阈值，确定上述非授权载波处于空闲状态。
可选地，根据上述干扰测量结果得到占用上述非授权载波时的CQI估计值包括：获取上述非授权载波处于上述空闲状态之前的上次被占用时的有用信号能量；根据上述有用信号能量与上述干扰测量结果得到信噪比；根据上述信噪比获得上述CQI估计值。
可选地，上述指定时隙由基站配置。
可选地，上述指定时隙由以下至少之一的信息组成：一个或多个长期演进LTE子帧、一个或多个LTE符号、一个或多个CCA观察时长。
可选地，基站配置上述指定时隙的方式包括以下之一：上述基站为终端配置周期性的上述指定时隙；上述基站为终端配置非周期性的上述指定时隙，触发上述终端进行干扰测量。
根据本发明实施例的另一个方面，还提供了一种接收信号强度指示RSSI测量方法，包括：基站发送测量RSSI的指示信号至终端；上述基站接收上述终端根据上述指示信号进行RSSI测量的结果。
可选地，测量的上述RSSI包括如下类型之一：RSSI类型一：测量信号源为上述终端接收到的所有信号，包括与上述终端的服务小区属于不同通信系统的多个网络节点的信号；与上述服务小区属于相同通信系统，并且与上述服务小区属于不同运营商的其他小区的信号；以及与上述服务小区属于相同通信系统，并且与上述服务小区属于相同运营商的所有小区的信号；RSSI类型二：测量信号源包括与上述服务小区属于不同通信系统的多个网络节点的信号；以及与上述服务小区属于相同通信系统，并且与上述服务小区属于不同运营商的其他小区的信号；RSSI类型三：测量信号源包括与上述服务小区属于不同通信系统的多个网络节点的信号；其中，上述RSSI类型一，用于衡量整个非授权频率层的负载；上述RSSI类型二，用于衡量非本运营商LAA系统的负荷情况；上述RSSI类型三，用于衡量非LAA系统的负荷 情况。
可选地，上述指示信号包括：上述基站根据测量的上述RSSI的类型，配置测量子帧集合，其中上述测量子帧集合包括以下之一：测量子帧集合一，用于测量上述RSSI类型一；测量子帧集合二，用于测量上述RSSI类型二：在上述测量子帧集合二上，与上述服务小区属于相同通信系统并且与上述服务小区属于相同运营商的所有小区静默；测量子帧集合三，用于测量上述RSSI类型三：在上述测量子帧集合三上，与上述服务小区属于相同通信系统并且与上述服务小区属于不同运营商的所有小区静默；同时，与上述服务小区属于相同通信系统并且与上述服务小区属于相同运营商的所有小区静默。
可选地，基站配置测量RSSI的指示信号包括：上述基站为上述终端进行一个或多个RSSI类型的测量配置；其中，在上述基站配置上述终端测量一个或多个类型的RSSI值时，上述基站接收上述终端上报一个或多个类型的RSSI值；在上述基站为不同类型的RSSI测量值配置不同的测量配置时，为上述终端配置测量触发方式和/或周期测量的周期值；在上述基站为不同类型的RSSI测量值配置不同的上报配置时，为上述终端配置上报触发方式和/或周期上报的周期值。
可选地，上述RSSI为在指定测量子帧上观察到的总接收功率的线性平均值。
可选地，上述指示信号包括一个或多个测量样本，其中，上述一个或多个测量样本是上述终端进行RSSI测量的依据，上述一个测量样本包含一个或多个相邻的测量子帧。
根据本发明实施例的再一个方面，还提供了一种接收信号强度指示RSSI测量方法，包括：终端接收基站发送的测量RSSI的指示信号；上述终端根据上述指示信号进行RSSI测量，得到测量结果，并将上述测量结果发送至上述基站。
可选地，测量的上述RSSI包括如下类型之一：RSSI类型一：测量信号源为上述终端接收到的所有信号，包括与上述终端的服务小区属于不同通信系统的多个网络节点的信号；与上述服务小区属于相同通信系统，并且与上述服务小区属于不同运营商的其他小区的信号；以及与上述服务小区属于相同通信系统，并且与上述服务小区属于相同运营商的所有小区的信号；RSSI类型二：测量信号源包括与上述服务小区属于不同通信系统的多个网络节点的信号；以及与上述服务小区属于相同通信系统，并且与上述服务小区属于不同运营商的其他小区的信号；RSSI类型三：测量信号源包括与上述服务小区属于不同通信系统的多个网络节点的信号；其中，上述RSSI类型一，用于衡量整个非授权频率层的负载；上述RSSI类型二，用于衡量非本运营商LAA系统的负荷情况；上述RSSI类型三，用于衡量非LAA系统的负荷情况。
可选地，上述指示信号包括上述基站根据上述RSSI的类型配置的测量子帧集合，其中上述测量子帧集合包括以下之一：测量子帧集合一，用于测量上述RSSI类型一；测量子帧集合二，用于测量上述RSSI类型二：在上述测量子帧集合二上，与上述服务小区属于相同通信系统并且与上述服务小区属于相同运营商的所有小区静默；测量子帧集合三，用于测量上述RSSI类型三：在上述测量子帧集合三上，与上述服务小区属于相同通信系统并且与上述服务小区 属于不同运营商的所有小区静默；同时，与上述服务小区属于相同通信系统并且与上述服务小区属于相同运营商的所有小区静默。
可选地，上述指示信号包括：上述基站为上述终端进行一个或多个RSSI类型的测量配置；其中，在上述基站配置上述终端测量一个或多个类型的RSSI值时，上述终端将一个或多个类型的RSSI值上报给上述基站；在上述基站为不同类型的RSSI测量值配置不同的测量配置时，为上述终端配置测量触发方式和/或周期测量的周期值；在上述基站为不同类型的RSSI测量值配置不同的上报配置时，为上述终端配置上报触发方式和/或周期上报的周期值。
可选地，上述RSSI为在指定测量子帧上观察到的总接收功率的线性平均值。
可选地，上述指示信号包括一个或多个测量样本，上述终端根据上述一个或多个测量样本进行RSSI测量，其中，一个测量样本包含一个或多个相邻的测量子帧。
可选地，上述终端根据上述指示信号进行RSSI测量，得到测量结果，并将上述测量结果发送至上述基站包括：在上述终端基于一个测量样本进行RSSI测量时，直接将该次测量结果进行上报给上述基站；在上述终端基于多个测量样本进行RSSI测量时，将多个测量样本对应的测量结果平滑后进行上报或者将一次占用期内的全部有效RSSI测量值平滑后上报给上述基站。
根据本发明实施例的另一个方面，还提供了一种信道质量指示CQI估计装置，包括：检测模块，设置为检测非授权载波的信道状态；获取模块，设置为在上述信道状态为空闲状态时，获取小区在指定时隙的上述非授权载波的干扰测量结果；估计模块，设置为根据上述干扰测量结果获取占用上述非授权载波时的初始CQI估计值。
可选地，上述检测模块包括：第一获取单元，设置为获取干净信道估计CCA策略；检测单元，设置为根据上述CCA策略检测非授权载波的信道状态；其中，上述CCA策略包括以下之一：策略1：同时检测上述小区的不可协调干扰信号和上述小区的可协调干扰信号，得到检测结果，使用一个CCA阈值与得到的检查结果进行比较，依据比较结果判断上述非授权载波是否处于空闲状态；策略2：同时检测上述小区的不可协调干扰信号和上述小区的可协调干扰信号，得到检测结果，使用两个CCA阈值与得到的检查结果进行比较，依据比较结果判断上述非授权载波是否处于空闲状态；策略3：仅检测上述小区的不可协调干扰，得到检测结果，根据得到的检查结果与CCA阈值的比较结果，判断上述非授权载波是否处于空闲状态；其中，上述小区的不可协调干扰信号包括以下至少之一：与上述小区属于不同通信系统的多个网络节点的干扰；与上述小区属于相同通信系统，并且与上述小区属于不同运营商的其他小区的干扰；上述小区的可协调干扰信号包括以下至少之一：与上述小区属于相同通信系统，并且与上述小区属于相同运营商的其他小区的干扰；与上述小区属于相同通信系统，并且与上述小区属于不同运营商的其他小区的干扰。
可选地，上述检测单元还设置为检测上述小区的不可协调干扰信号和/或上述小区的可协调干扰信号，其中检测的方式包括以下之一：在上述小区配置不可协调干扰静默图样时，在上述不可协调干扰静默图样指示的静默时刻进行不可协调干扰测量，得到的干扰测量结果为 上述不可协调干扰信号；在上述不可协调干扰静默图样指示的静默时刻之外的时刻进行干扰测量，得到的干扰测量结果包括上述不可协调干扰信号和上述可协调干扰信号；上述可协调干扰信号为上述不可协调干扰信号和上述可协调干扰信号总和与上述不可协调干扰信号的差值；或者，在上述小区同时配置了不可协调干扰静默图样和可协调干扰静默图样时，上述小区在上述不可协调干扰静默图样上进行干扰测量，得到的干扰测量结果为上述不可协调干扰信号；在上述可协调干扰静默图样上进行干扰测量，得到的干扰测量结果为上述可协调干扰信号；或者，网络中所有小区统一配置第一不可协调干扰静默图样，与上述小区属于相同运营商的小区配置了第二不可协调干扰静默图样，在上述第二不可协调干扰静默图样指示的静默时刻进行不可协调干扰测量，得到的干扰测量结果为上述不可协调干扰信号，其中，该不可协调干扰信号包括以下至少之一：与上述小区属于不同通信系统的多个网络节点的干扰；与上述小区属于相同通信系统，并且与上述小区属于不同运营商的其他小区的干扰。
可选地，上述检测单元还设置为根据上述策略1检测上述非授权载波的信道状态，其中，在上述不可协调干扰信号和上述可协调干扰信号的总和不大于第一阈值的情况下，确定上述非授权载波处于空闲状态。
可选地，上述检测单元还设置为根据上述策略2检测上述非授权载波的信道状态，其中，在上述不可协调干扰信号不大于第二阈值，并且上述可协调干扰信号不大于第三阈值的情况下，确定上述非授权载波处于空闲状态。
可选地，上述第三阈值由上述小区所属的主小区PCell进行配置。
可选地，上述检测单元还设置为根据上述策略3检测上述非授权载波的信道状态，其中，在上述不可协调干扰信号不大于第四阈值，确定上述非授权载波处于空闲状态。
可选地，上述估计模块包括：第二获取单元，设置为获取上述非授权载波处于上述空闲状态之前的上次被占用时的有用信号能量；第三获取单元，设置为根据上述有用信号能量与上述干扰测量结果得到信噪比；估计单元，设置为根据上述信噪比获得上述CQI估计值。
可选地，上述指定时隙由基站配置。
可选地，上述指定时隙由以下至少之一的信息组成：一个或多个长期演进LTE子帧、一个或多个LTE符号、一个或多个CCA观察时长。
可选地，上述装置还包括以下至少之一的模块：第一配置模块，设置为为终端配置周期性的上述指定时隙；第二配置模块，设置为为终端配置非周期性的上述指定时隙，触发上述终端进行干扰测量。
根据本发明实施例的另一个方面，提供了一种接收信号强度指示RSSI测量装置，上述装置应用于基站，上述装置包括：发送模块，设置为发送测量RSSI的指示信号给终端；接收模块，设置为接收上述终端根据上述指示信号进行RSSI测量的结果。
可选地，测量的上述RSSI包括如下类型之一：RSSI类型一：测量信号源为上述终端接 收到的所有信号，包括与上述终端的服务小区属于不同通信系统的多个网络节点的信号；与上述服务小区属于相同通信系统，并且与上述服务小区属于不同运营商的其他小区的信号；以及与上述服务小区属于相同通信系统，并且与上述服务小区属于相同运营商的所有小区的信号；RSSI类型二：测量信号源包括与上述服务小区属于不同通信系统的多个网络节点的信号；以及与上述服务小区属于相同通信系统，并且与上述服务小区属于不同运营商的其他小区的信号；RSSI类型三：测量信号源包括与上述服务小区属于不同通信系统的多个网络节点的信号；其中，上述RSSI类型一，用于衡量整个非授权频率层的负载；上述RSSI类型二，用于衡量非本运营商LAA系统的负荷情况；上述RSSI类型三，用于衡量非LAA系统的负荷情况。
可选地，上述指示信号包括：上述基站根据测量的上述RSSI的类型，配置测量子帧集合，其中上述测量子帧集合包括以下之一：测量子帧集合一，用于测量上述RSSI类型一；测量子帧集合二，用于测量上述RSSI类型二：在上述测量子帧集合二上，与上述服务小区属于相同通信系统并且与上述服务小区属于相同运营商的所有小区静默；测量子帧集合三，用于测量上述RSSI类型三：在上述测量子帧集合三上，与上述服务小区属于相同通信系统并且与上述服务小区属于不同运营商的所有小区静默；同时，与上述服务小区属于相同通信系统并且与上述服务小区属于相同运营商的所有小区静默。
可选地，上述指示信号包括：上述基站为上述终端进行一个或多个RSSI类型的测量配置；其中，在上述基站配置上述终端测量一个或多个类型的RSSI值时，上述基站接收上述终端上报一个或多个类型的RSSI值；在上述基站为不同类型的RSSI测量值配置不同的测量配置时，为上述终端配置测量触发方式和/或周期测量的周期值；在上述基站为不同类型的RSSI测量值配置不同的上报配置时，为上述终端配置上报触发方式和/或周期上报的周期值。
可选地，上述RSSI为在指定测量子帧上观察到的总接收功率的线性平均值。
可选地，上述指示信号包括一个或多个测量样本，其中，上述一个或多个测量样本是上述终端进行RSSI测量的依据，上述一个测量样本包含一个或多个相邻的测量子帧。
根据本发明实施例的再一个方面，还提供了一种接收信号强度指示RSSI测量装置，上述装置应用于终端，上述装置包括：接收模块，设置为接收基站发送的测量RSSI的指示信号；处理模块，设置为根据上述指示信号进行RSSI测量，得到测量结果，并将上述测量结果发送至上述基站。
可选地，测量的上述RSSI包括如下类型之一：RSSI类型一：测量信号源为上述终端接收到的所有信号，包括与上述终端的服务小区属于不同通信系统的多个网络节点的信号；与上述服务小区属于相同通信系统，并且与上述服务小区属于不同运营商的其他小区的信号；以及与上述服务小区属于相同通信系统，并且与上述服务小区属于相同运营商的所有小区的信号；RSSI类型二：测量信号源包括与上述服务小区属于不同通信系统的多个网络节点的信号；以及与上述服务小区属于相同通信系统，并且与上述服务小区属于不同运营商的其他小区的信号；RSSI类型三：测量信号源包括与上述服务小区属于不同通信系统的多个网络节点 的信号；其中，上述RSSI类型一，用于衡量整个非授权频率层的负载，实现DFS功能；上述RSSI类型二，用于衡量非本运营商LAA系统的负荷情况；上述RSSI类型三，用于衡量非LAA系统的负荷情况。
可选地，上述指示信号包括上述基站根据上述RSSI的类型配置的测量子帧集合，其中上述测量子帧集合包括以下之一：测量子帧集合一，用于测量上述RSSI类型一；测量子帧集合二，用于测量上述RSSI类型二：在上述测量子帧集合二上，与上述服务小区属于相同通信系统并且与上述服务小区属于相同运营商的所有小区静默；测量子帧集合三，用于测量上述RSSI类型三：在上述测量子帧集合三上，与上述服务小区属于相同通信系统并且与上述服务小区属于不同运营商的所有小区静默；同时，与上述服务小区属于相同通信系统并且与上述服务小区属于相同运营商的所有小区静默。
可选地，上述指示信号包括：上述基站为上述终端进行一个或多个RSSI类型的测量配置；其中，在上述基站配置上述终端测量一个或多个类型的RSSI值时，上述终端将一个或多个类型的RSSI值上报给上述基站；在上述基站为不同类型的RSSI测量值配置不同的测量配置时，为上述终端配置测量触发方式和/或周期测量的周期值；在上述基站为不同类型的RSSI测量值配置不同的上报配置时，为上述终端配置上报触发方式和/或周期上报的周期值。
可选地，上述RSSI为在指定测量子帧上观察到的总接收功率的线性平均值。
可选地，上述指示信号包括一个或多个测量样本，上述终端根据上述一个或多个测量样本进行RSSI测量，其中，一个测量样本包含一个或多个相邻的测量子帧。
可选地，上述处理模块还设置为在上述终端基于一个测量样本进行RSSI测量时，直接将该次测量结果进行上报给上述基站；在上述终端基于多个测量样本进行RSSI测量时，将多个测量样本对应的测量结果平滑后进行上报或者将一次占用期内的全部有效RSSI测量值平滑后上报给上述基站。
通过本发明实施例，采用检测非授权载波的信道状态；在信道状态为空闲状态时，获取小区在指定时隙的非授权载波的干扰测量结果；根据干扰测量结果获取占用该非授权载波时的初始CQI估计值。解决了相关技术中单一的测量行为无法满足载波切换的需求的问题，进而提高了CQI测量的准确性。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据本发明实施例的信道质量指示CQI估计方法的流程图；
图2是根据本发明实施例的信道质量指示CQI估计装置的结构框图；
图3是根据本发明实施例的信道质量指示CQI估计装置的结构框图(一)；
图4是根据本发明实施例的信道质量指示CQI估计装置的结构框图(二)；
图5是根据本发明实施例的接收信号强度指示RSSI测量方法的流程图；
图6是根据本发明实施例的接收信号强度指示RSSI测量方法的结果框图；
图7是根据本发明实施例的接收信号强度指示RSSI测量方法的流程图(一)；
图8是根据本发明实施例的接收信号强度指示RSSI测量方法的结果框图(二)。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
在本实施例中提供了一种信道质量指示CQI估计方法，图1是根据本发明实施例的信道质量指示CQI估计方法的流程图，如图1所示，该流程包括如下步骤：
步骤S102，检测非授权载波的信道状态；
步骤S104，在信道状态为空闲状态时，获取小区在指定时隙的该非授权载波的干扰测量结果；
步骤S106，根据干扰测量结果获取占用该非授权载波时的初始CQI估计值。
通过上述步骤，在未占用非授权载波之前能够获取占用该非授权载波时的初始CQI估计值，相比于现有技术中，只能在占用载波的过程中，通过向终端发送测量参考信号才能获取CQI值，上述步骤解决了相关技术中单一的测量行为无法满足载波切换的需求的问题，进而提高了CQI测量的准确性。
上述步骤S102涉及到检测非授权载波的信道状态，在一个可选实施例中，首先获取干净信道估计CCA策略，根据CCA策略检测非授权载波的信道状态。需要说明是，CCA策略可以包括多种形式，下面对此进行举例说明，CCA策略包括以下之一：策略1：同时检测小区的不可协调干扰信号和小区的可协调干扰信号，得到检测结果，使用一个CCA阈值与得到的检查结果进行比较，依据比较结果判断该非授权载波是否处于空闲状态；策略2：同时检测小区的不可协调干扰信号和小区的可协调干扰信号，得到检测结果，使用两个CCA阈值与得到的检查结果进行比较，依据比较结果判断该非授权载波是否处于空闲状态；策略3：仅检测小区的不可协调干扰，得到检测结果，根据得到的检查结果与CCA阈值的比较结果，判断非授权载波是否处于空闲状态；其中，小区的不可协调干扰信号包括以下至少之一：与小区属于不同通信系统的多个网络节点的干扰；与小区属于相同通信系统，并且与小区属于不同运营商的其他小区的干扰；小区的可协调干扰信号包括以下至少之一：与小区属于相同通信系统，并且与小区属于相同运营商的其他小区的干扰；与小区属于相同通信系统，并且与小区属于不同运营商的其他小区的干扰。需要强调的是，与小区属于相同通信系统，并且与小区属于不同运营商的其他小区的干扰可以作为可协调干扰也可以作为不可协调干扰。
利用上述CCA策略检测非授权载波的信道状态时，需要提前确定可协调干扰信号的强度和不可协调干扰信号的强度，在一个可选实施例中，在小区配置不可协调干扰静默图样时，在不可协调干扰静默图样指示的静默时刻进行不可协调干扰测量，得到的干扰测量结果为不可协调干扰信号；在不可协调干扰静默图样指示的静默时刻之外的时刻进行干扰测量，得到的干扰测量结果包括不可协调干扰信号和该可协调干扰信号；可协调干扰信号为不可协调干扰信号和该可协调干扰信号总和与该不可协调干扰信号的差值；或者，在小区同时配置了不可协调干扰静默图样和可协调干扰静默图样时，该小区在不可协调干扰静默图样上进行干扰测量，得到的干扰测量结果为不可协调干扰信号；在可协调干扰静默图样上进行干扰测量，得到的干扰测量结果为可协调干扰信号；或者，网络中所有小区统一配置第一不可协调干扰静默图样，与小区属于相同运营商的小区配置了第二不可协调干扰静默图样，在第二不可协调干扰静默图样指示的静默时刻进行不可协调干扰测量，得到的干扰测量结果为该不可协调干扰信号，其中，该不可协调干扰信号包括以下至少之一：与该小区属于不同通信系统的多个网络节点的干扰；与该小区属于相同通信系统，并且与该小区属于不同运营商的其他小区的干扰。从而得到了小区的不可协调干扰信号的强度和小区的可协调干扰信号的强度。
在一个可选实施例中，根据策略1检测非授权载波的信道状态时，在不可协调干扰信号和可协调干扰信号的总和不大于第一阈值的情况下，确定非授权载波处于空闲状态。
在另一个可选实施例中，根据策略2检测非授权载波的信道状态时，在不可协调干扰信号不大于第二阈值，并且可协调干扰信号不大于第三阈值的情况下，确定非授权载波处于空闲状态。在再一个可选实施例中，第三阈值由小区所属的主小区PCell进行配置。
在另一个可选实施例中，根据策略3检测非授权载波的信道状态时，在不可协调干扰信号不大于第四阈值，确定非授权载波处于空闲状态。
上述步骤S106涉及到根据干扰测量结果获取占用非授权载波时的初始CQI估计值，在一个可选实施例中，获取非授权载波处于空闲状态之前的上次被占用时的有用信号能量，根据有用信号能量与干扰测量结果得到信噪比，根据该信噪比获得CQI估计值。
在一个可选实施例中，指定时隙由基站配置。
在另一个可选实施例中，指定时隙可以是一个或多个长期演进LTE子帧，还可以是一个或多个LTE符号，还可以是一个或多个CCA观察时长。
基站配置指定时隙的方式可以有多种，在一个可选实施例中，基站为终端配置周期性的指定时隙，在另一个可选实施例中，基站为终端配置非周期性的所述指定时隙，触发终端进行干扰测量。
在本实施例中还提供了一种信道质量指示CQI估计装置，该装置用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图2是根据本发明实施例的信道质量指示CQI估计装置的结构框图，如图2所示，该装置包括：检测模块22，设置为检测非授权载波的信道状态；获取模块24，设置为在信道状态为空闲状态时，获取小区在指定时隙的非授权载波的干扰测量结果；估计模块26，设置为根据干扰测量结果获取占用非授权载波时的初始CQI估计值。
图3是根据本发明实施例的信道质量指示CQI估计装置的结构框图(一)；如图3所示，检测模块22包括：第一获取单元222，设置为获取干净信道估计CCA策略；检测单元224，设置为根据该CCA策略检测非授权载波的信道状态；其中，CCA策略包括以下之一：策略1：同时检测小区的不可协调干扰信号和该小区的可协调干扰信号，得到检测结果，使用一个CCA阈值与得到的检查结果进行比较，依据比较结果判断该非授权载波是否处于空闲状态；策略2：同时检测小区的不可协调干扰信号和小区的可协调干扰信号，得到检测结果，使用两个CCA阈值与得到的检查结果进行比较，依据比较结果判断该非授权载波是否处于空闲状态；策略3：仅检测小区的不可协调干扰，得到检测结果，根据得到的检查结果与CCA阈值的比较结果，判断非授权载波是否处于空闲状态；其中，小区的不可协调干扰信号包括以下至少之一：与小区属于不同通信系统的多个网络节点的干扰；与小区属于相同通信系统，并且与小区属于不同运营商的其他小区的干扰；小区的可协调干扰信号包括以下至少之一：与小区属于相同通信系统，并且与小区属于相同运营商的其他小区的干扰；与小区属于相同通信系统，并且与小区属于不同运营商的其他小区的干扰。
可选地，检测单元224还设置为检测小区的不可协调干扰信号和/或小区的可协调干扰信号，其中检测的方式包括以下之一：在小区配置不可协调干扰静默图样时，在不可协调干扰静默图样指示的静默时刻进行不可协调干扰测量，得到的干扰测量结果为不可协调干扰信号；在不可协调干扰静默图样指示的静默时刻之外的时刻进行干扰测量，得到的干扰测量结果包括不可协调干扰信号和该可协调干扰信号；可协调干扰信号为该不可协调干扰信号和该可协调干扰信号总和与该不可协调干扰信号的差值；或者，在小区同时配置了不可协调干扰静默图样和可协调干扰静默图样时，小区在不可协调干扰静默图样上进行干扰测量，得到的干扰测量结果为不可协调干扰信号；在可协调干扰静默图样上进行干扰测量，得到的干扰测量结果为该可协调干扰信号；或者，网络中所有小区统一配置第一不可协调干扰静默图样，与小区属于相同运营商的小区配置了第二不可协调干扰静默图样，在第二不可协调干扰静默图样指示的静默时刻进行不可协调干扰测量，得到的干扰测量结果为该不可协调干扰信号，其中，该不可协调干扰信号包括以下至少之一：与小区属于不同通信系统的多个网络节点的干扰；与小区属于相同通信系统，并且与小区属于不同运营商的其他小区的干扰。
可选地，检测单元224还设置为根据该策略1检测该非授权载波的信道状态，其中，在不可协调干扰信号和该可协调干扰信号的总和不大于第一阈值的情况下，确定非授权载波处于空闲状态。
可选地，检测单元224还设置为根据策略2检测非授权载波的信道状态，其中，在不可协调干扰信号不大于第二阈值，并且可协调干扰信号不大于第三阈值的情况下，确定非授权载波处于空闲状态。
可选地，第三阈值由小区所属的主小区PCell进行配置。
可选地，检测单元224还设置为根据策略3检测非授权载波的信道状态，其中，在不可协调干扰信号不大于第四阈值，确定非授权载波处于空闲状态。
可选地，估计模块26包括：第二获取单元262，设置为获取非授权载波处于该空闲状态之前的上次被占用时的有用信号能量；第三获取单元264，设置为根据该有用信号能量与干扰测量结果得到信噪比；估计单元266，设置为根据该信噪比获得CQI估计值。
在一个可选实施例中，指定时隙由基站配置。
在另一个可选实施例中，指定时隙可以是一个或多个长期演进LTE子帧，还可以是一个或多个LTE符号，还可以是一个或多个CCA观察时长。
图4是根据本发明实施例的信道质量指示CQI估计装置的结构框图(二)，如图4所示，该装置还包括：第一配置模块42，设置为为终端配置周期性的该指定时隙；第二配置模块44，设置为为终端配置非周期性的该指定时隙，触发该终端进行干扰测量。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述各个模块均位于同一处理器中；或者，上述各个模块分别位于第一处理器、第二处理器和第三处理器…中。
上面CQI测量中提到的干扰测量，其实就是接收信号强度指示(Received Signal Strength Indicator，简称为RSSI)测量，因此，在本实施例中提供了一种接收信号强度指示RSSI测量方法，图5是根据本发明实施例的接收信号强度指示RSSI测量方法的流程图，如图5所示，该流程包括如下步骤：
步骤S502，基站发送测量RSSI的指示信号至终端；
步骤S504，基站接收终端根据指示信号进行RSSI测量的结果。
通过上述步骤，基站可以配置终端进行RSSI测量从而得到了对RSSI测量的结果，以便于提高对后续信号发送的准确度。
在一个可选实施例中，测量的RSSI包括如下类型之一：RSSI类型一：测量信号源为终端接收到的所有信号，包括与终端的服务小区属于不同通信系统的多个网络节点的信号；与服务小区属于相同通信系统，并且与服务小区属于不同运营商的其他小区的信号；以及与服务小区属于相同通信系统，并且与服务小区属于相同运营商的所有小区的信号；RSSI类型二：测量信号源包括与服务小区属于不同通信系统的多个网络节点的信号；以及与服务小区属于相同通信系统，并且与服务小区属于不同运营商的其他小区的信号；RSSI类型三：测量信号源包括与服务小区属于不同通信系统的多个网络节点的信号；其中，RSSI类型一，用于衡量整个非授权频率层的负载；RSSI类型二，用于衡量非本运营商LAA系统的负荷情况；RSSI类型三，用于衡量非LAA系统的负荷情况。
上述的指示信号可以包括很多种，下面对此进行举例说明。在一个可选实施例中，指示 信号可以包括：基站根据测量的该RSSI的类型，配置测量子帧集合，其中测量子帧集合包括以下之一：测量子帧集合一，用于测量RSSI类型一；测量子帧集合二，用于测量RSSI类型二：在测量子帧集合二上，与服务小区属于相同通信系统，并且与服务小区属于相同运营商的所有小区静默；测量子帧集合三，用于测量RSSI类型三：在测量子帧集合三上，与服务小区属于相同通信系统，并且与服务小区属于不同运营商的所有小区静默；同时，与服务小区属于相同通信系统，并且与该服务小区属于相同运营商的所有小区静默。在另一个可选实施例中，基站配置测量RSSI的指示信号可以包括：基站为该终端进行一个或多个RSSI类型的测量配置；其中，在基站配置该终端测量一个或多个类型的RSSI值时，该基站接收该终端上报一个或多个类型的RSSI值；在基站为不同类型的RSSI测量值配置不同的测量配置时，为终端配置测量触发方式和/或周期测量的周期值；在基站为不同类型的RSSI测量值配置不同的上报配置时，为该终端配置上报触发方式和/或周期上报的周期值。在再一个可选实施例中，指示信号包括一个或多个测量样本，其中，一个或多个测量样本是该终端进行RSSI测量的依据，一个测量样本包含一个或多个相邻的测量子帧。
在一个可选实施例中，RSSI为在指定测量子帧上观察到的总接收功率的线性平均值。
图6是根据本发明实施例的接收信号强度指示RSSI测量方法的结果框图，该装置应用于基站，如图6所述，该装置包括：发送模块62，设置为发送测量RSSI的指示信号给终端；接收模块64，设置为接收该终端根据该指示信号进行RSSI测量的结果。
可选地，测量的RSSI包括如下类型之一：RSSI类型一：测量信号源为终端接收到的所有信号，包括与终端的服务小区属于不同通信系统的多个网络节点的信号；与服务小区属于相同通信系统，并且与服务小区属于不同运营商的其他小区的信号；以及与服务小区属于相同通信系统，并且与服务小区属于相同运营商的所有小区的信号；RSSI类型二：测量信号源包括与服务小区属于不同通信系统的多个网络节点的信号；以及与服务小区属于相同通信系统，并且与服务小区属于不同运营商的其他小区的信号；RSSI类型三：测量信号源包括与服务小区属于不同通信系统的多个网络节点的信号；其中，RSSI类型一，用于衡量整个非授权频率层的负载；RSSI类型二，用于衡量非本运营商LAA系统的负荷情况；RSSI类型三，用于衡量非LAA系统的负荷情况。
可选地，指示信号包括：基站根据测量的RSSI的类型，配置测量子帧集合，其中测量子帧集合包括以下之一：测量子帧集合一，用于测量RSSI类型一；测量子帧集合二，用于测量该RSSI类型二：在测量子帧集合二上，与服务小区属于相同通信系统并且与服务小区属于相同运营商的所有小区静默，这里的与服务小区属于相同通信系统并且与服务小区属于相同运营商的所有小区静默，指的是该所有小区(包括服务小区)不进行数据发送和/或接收。测量子帧集合三，用于测量RSSI类型三：在测量子帧集合三上，与服务小区属于相同通信系统并且与服务小区属于不同运营商的所有小区静默；同时，与服务小区属于相同通信系统并且与服务小区属于相同运营商的所有小区静默，这里的与服务小区属于相同通信系统并且与服务小区属于不同运营商的所有小区静默，指的是该所有小区(包括服务小区)不进行数据发送和/或接收；与服务小区属于相同通信系统并且与服务小区属于相同运营商的所有小区静默， 指的是该所有小区(包括服务小区)不进行数据发送和/或接收。
可选地，指示信号包括：基站为终端进行一个或多个RSSI类型的测量配置；其中，在该基站配置该终端测量一个或多个类型的RSSI值时，基站接收终端上报一个或多个类型的RSSI值；在基站为不同类型的RSSI测量值配置不同的测量配置时，为终端配置测量触发方式和/或周期测量的周期值；在基站为不同类型的RSSI测量值配置不同的上报配置时，为该终端配置上报触发方式和/或周期上报的周期值。
可选地，RSSI为在指定测量子帧上观察到的总接收功率的线性平均值。
可选地，指示信号包括一个或多个测量样本，其中，该一个或多个测量样本是该终端进行RSSI测量的依据，该一个测量样本包含一个或多个相邻的测量子帧。
在本实施例中提供了一种接收信号强度指示RSSI测量方法，图7是根据本发明实施例的接收信号强度指示RSSI测量方法的流程图(一)，如图7所示，该流程包括如下步骤：
步骤S702，终端接收基站发送的测量RSSI的指示信号；
步骤S704，终端根据指示信号进行RSSI测量，得到测量结果，并将测量结果发送至基站。
通过上述步骤，基站可以配置终端进行RSSI测量从而得到了对RSSI测量的结果，以便于提高对后续信号发送的准确度。
RSSI可以包括多种类型，下面对此进行举例说明。在一个可选实施例中，测量的RSSI包括如下类型之一：RSSI类型一：测量信号源为终端接收到的所有信号，包括与终端的服务小区属于不同通信系统的多个网络节点的信号；与服务小区属于相同通信系统，并且与该服务小区属于不同运营商的其他小区的信号；以及与服务小区属于相同通信系统，并且与该服务小区属于相同运营商的所有小区的信号；RSSI类型二：测量信号源包括与服务小区属于不同通信系统的多个网络节点的信号；以及与服务小区属于相同通信系统，并且与该服务小区属于不同运营商的其他小区的信号；RSSI类型三：测量信号源包括与服务小区属于不同通信系统的多个网络节点的信号；其中，RSSI类型一，用于衡量整个非授权频率层的负载；该RSSI类型二，用于衡量非本运营商LAA系统的负荷情况；该RSSI类型三，用于衡量非LAA系统的负荷情况。
上述的指示信号可以包括多种类型，在一个可选实施例中，指示信号可以包括基站根据RSSI的类型配置的测量子帧集合，其中测量子帧集合包括以下之一：测量子帧集合一，用于测量RSSI类型一；测量子帧集合二，用于测量RSSI类型二：在测量子帧集合二上，与服务小区属于相同通信系统，并且与服务小区属于相同运营商的所有小区静默；测量子帧集合三，用于测量RSSI类型三：在测量子帧集合三上，与服务小区属于相同通信系统，并且与服务小区属于不同运营商的所有小区静默；同时，与服务小区属于相同通信系统，并且与服务小区属于相同运营商的所有小区静默。在另一个可选实施例中，指示信号可以包括：基站为终端进行一个或多个RSSI类型的测量配置；其中，在基站配置终端测量一个或多个类型的RSSI值时，终端将一个或多个类型的RSSI值上报给基站；在基站为不同类型的RSSI测量值配置 不同的测量配置时，为该终端配置测量触发方式和/或周期测量的周期值；在基站为不同类型的RSSI测量值配置不同的上报配置时，为终端配置上报触发方式和/或周期上报的周期值。在再一个可选实施例中，指示信号可以包括一个或多个测量样本，终端根据一个或多个测量样本进行RSSI测量，其中，一个测量样本包含一个或多个相邻的测量子帧。
在一个可选实施例中，RSSI为在指定测量子帧上观察到的总接收功率的线性平均值。
在一个可选实施例中，在终端基于一个测量样本进行RSSI测量时，直接将该次测量结果进行上报给基站；在终端基于多个测量样本进行RSSI测量时，将多个测量样本对应的测量结果平滑后进行上报或者将一次占用期内的全部有效RSSI测量值平滑后上报给基站。进而实现了终端根据指示信号进行RSSI测量，得到测量结果，并将测量结果发送至基站。
图8是根据本发明实施例的接收信号强度指示RSSI测量方法的结果框图(二)，该装置应用于终端，如图8所示，该装置包括：接收模块82，设置为接收基站发送的测量RSSI的指示信号；处理模块84，设置为根据该指示信号进行RSSI测量，得到测量结果，并将该测量结果发送至该基站。
可选地，测量的RSSI包括如下类型之一：RSSI类型一：测量信号源为该终端接收到的所有信号，包括与终端的服务小区属于不同通信系统的多个网络节点的信号；与该服务小区属于相同通信系统，并且与服务小区属于不同运营商的其他小区的信号；以及与该服务小区属于相同通信系统，并且与服务小区属于相同运营商的所有小区的信号；RSSI类型二：测量信号源包括与该服务小区属于不同通信系统的多个网络节点的信号；以及与服务小区属于相同通信系统，并且与服务小区属于不同运营商的其他小区的信号；RSSI类型三：测量信号源包括与该服务小区属于不同通信系统的多个网络节点的信号；其中，RSSI类型一，用于衡量整个非授权频率层的负载，实现DFS功能；RSSI类型二，用于衡量非本运营商LAA系统的负荷情况；该RSSI类型三，用于衡量非LAA系统的负荷情况。
可选地，该指示信号包括该基站根据该RSSI的类型配置的测量子帧集合，其中该测量子帧集合包括以下之一：测量子帧集合一，用于测量该RSSI类型一；测量子帧集合二，用于测量该RSSI类型二：在测量子帧集合二上，与服务小区属于相同通信系统并且与该服务小区属于相同运营商的所有小区静默；测量子帧集合三，用于测量该RSSI类型三：在该测量子帧集合三上，与服务小区属于相同通信系统并且与服务小区属于不同运营商的所有小区静默；同时，与服务小区属于相同通信系统并且与服务小区属于相同运营商的所有小区静默。
可选地，指示信号包括：基站为终端进行一个或多个RSSI类型的测量配置；其中，在该基站配置该终端测量一个或多个类型的RSSI值时，该终端将一个或多个类型的RSSI值上报给该基站；在基站为不同类型的RSSI测量值配置不同的测量配置时，为该终端配置测量触发方式和/或周期测量的周期值；在基站为不同类型的RSSI测量值配置不同的上报配置时，为该终端配置上报触发方式和/或周期上报的周期值。
可选地，RSSI为在指定测量子帧上观察到的总接收功率的线性平均值。
可选地，指示信号包括一个或多个测量样本，该终端根据该一个或多个测量样本进行RSSI测量，其中，一个测量样本包含一个或多个相邻的测量子帧。
可选地，处理模块还设置为在终端基于一个测量样本进行RSSI测量时，直接将该次测量结果进行上报给该基站；在终端基于多个测量样本进行RSSI测量时，将多个测量样本对应的测量结果平滑后进行上报或者将一次占用期内的全部有效RSSI测量值平滑后上报给该基站。
针对相关技术中存在的上述问题，下面结合可选实施例进行说明，在本可选实施例中结合了上述可选实施例及其可选实施方式。
本可选实施例所要解决的技术问题是：因为用于CSI测量的参考信号在非授权载波上非连续发送，CQI测量和干扰测量可能会不准确，并且LAA小区可能在非授权载波和授权载波之间进行载波切换，单一的测量行为将无法满足载波切换的需求。
为解决上述技术问题，本可选实施例提供了一种非授权载波测量的方法和系统，该方法根据LAA小区的CCA策略，利用UE在CCA期间的干扰测量结果以及前次占用期的有用信号能量、CQI测量结果等信息进行当次占用期的CQI估计。使得LAA eNB可以及时获得CQI用于数据调度发送。在占用期内，可利用预先配置的LAA ZP CSI-RS来进行更精确的干扰测量，当LAA小区可在授权载波和非授权载波之间进行切换时，可配置不同的ZP CSI-RS用于干扰测量，以便于准确地测量授权载波和非授权载波上的干扰情况。
需要说明的是，干扰测量时隙并不限定于CCA观察期，可以是其他时隙，只要目标eNB在该时隙经历的干扰情况与占用期的干扰情况相似即可。
干扰测量时隙可由基站进行配置，可以是一个或多个LTE子帧、一个或多个LTE符号，一个或多个CCA观察时长。基站可为UE配置周期性的干扰测量时隙，也可以指示非周期的测量时隙，以及触发UE进行干扰测量。例如可用PCell/Scell PDCCH/EPDCCH承载的DCI进行指示。
考虑如下场景，LTE eNB准备在非授权载波上进行下行或上行+下行数据发送。在获得信道使用权之前，LAA基站需要先进行干净信道评估(Clear Channel Access，简称为CCA)，取得可用信道信息。LAA eNB接入信道，进入占用期，并开始发送测量参考信号，供UE进行测量。如果LAA小区可在授权载波和非授权载波之间切换，还应为授权载波和非授权载波配置不同的干扰测量参考信号。下面详细说明具体操作方法。
步骤一：LAA小区确定CCA策略。
LAA小区可选的CCA策略包括：
策略1：同时检测异系统干扰和同系统干扰，使用一个CCA门限。
策略2：同时检测异系统干扰和同系统干扰，使用两个CCA门限。
策略3：仅检测异系统干扰。
LAA小区可以使用网络预先约定的CCA策略，例如所有LAA小区，或者属于同一运营商的LAA小区，可以约定使用相同的CCA策略。
也可以由Pcell指示LAA小区使用哪种CCA策略。指示的方法可以通过物理下行控制信道(Physical Downlink Control Channel，简称为PDCCH)、增强物理下行控制信道(Enhance Physical Downlink Control Channel，简称为PDCCH)发送DCI进行指示。
步骤二：可选的，LAA小区配置静默图样。
LAA小区静默图样包括LAA小区静默的频率信息和时间信息；其中频率信息包括静默的中心频率和带宽信息，也可以用子信道编号，或者子信道编号+带宽来表示；其中时间信息主要包括静默的时刻和静默时长。
在授权载波上的主小区PCell和非授权载波上的辅小区(Secondary Component Cell，简称为SCell)共址情形下，LAA小区可使用主小区的定时作为同步参考。
在授权载波上的主小区PCell和非授权载波上的辅小区Scell非共址情形下，LAA小区之间需要进行同步，以确保LAA小区能够在相同的时刻进行静默。
LAA小区可以配置多个静默图样，例如来自不同运营商的LAA小区配置静默图样1，在该静默图样内，LAA小区都不进行下行数据发送以及上行数据接收，此时任一LAA小区进行干扰测量得到的干扰均为异系统干扰，即LAA系统外干扰。
在网络中存在多个运营商时，为区分不同运营商的干扰，LAA小区可以配置额外的静默图样。例如，来自运营商OP1的LAA小区可以配置静默图样2，在该静默图样内，来自运营商OP1的LAA小区都不进行下行数据发送以及上行数据接收，此时来自运营商OP1的任一LAA小区进行干扰测量，得到的干扰既包括异系统干扰，也包括除运营商OP1之外的其他运营商的LAA小区干扰。类似的，网络中来自其他运营商的LAA小区也可以配置本运营商网络内部的静默图样。
步骤三：LAA小区根据CCA策略进行CCA。
如果LAA小区使用CCA策略1，仅检测异系统干扰，则LAA小区可以采用如下如下方式来进行干扰测量。
方式一：
LAA小区仅配置异系统干扰静默图样。
LAA小区在预定的异系统干扰静默图样指示的静默时刻进行异系统干扰测量，此时，测量得到的干扰均为异系统干扰，记为I_out；
LAA小区在预定的异系统干扰静默图样指示的静默时刻之外的时刻进行干扰测量，此时，测量得到的干扰包含同系统干扰和异系统干扰，记为I_total；
计算同系统干扰，I_in＝I_total-I_out。
方式二：
LAA小区同时配置了异系统干扰静默图样和同系统干扰静默图样；
LAA小区在预定的异系统干扰静默图样上进行异系统干扰测量，此时，测量得到的干扰仅包含异系统干扰，记为I_out；
LAA小区在预定的同系统干扰静默图样上进行干扰测量，此时，测量得到的干扰仅包含同系统干扰，记为I_in；
系统总干扰为，I_total＝I_out+I_in；
如果LAA小区使用CCA策略1，即同时检测异系统干扰和同系统干扰，使用一个干扰门限；则将总的干扰能量I_total与预定的干扰门限一TH1进行比较，如果总的干扰能量大于干扰门限一，即I_total>TH1，则表示总的干扰较强，判定当前信道状态为不空闲，LAA不能接入信道；如果总的干扰能量小于等于干扰门限一，即I_total<＝TH1，则说明总的干扰在可接受的范围内，判定信道状态为空闲，LAA小区可接入信道。
如果LAA小区使用CCA策略2，即同时检测异系统干扰和同系统干扰，使用两个干扰门限；则将异系统干扰能量I_out与预定的异系统干扰门限二TH2进行比较，将同系统干扰能量I_in与预定的同系统干扰门限三TH3进行比较，如果异系统干扰能量大于异系统干扰门限，即I_out>TH2，或者同系统干扰能量大于同系统干扰门限，即I_in>TH3，则表示异系统干扰太强，或同系统干扰太强，判定当前信道状态为不空闲，LAA不能接入信道；如果异系统干扰能量不大于异系统干扰门限，即I_out<＝TH2，并且同系统干扰能量不大于同系统干扰门限I_in<＝TH3，则判定信道状态为空闲，LAA小区可接入信道。
CCA策略2的好处在于，根据LAA小区的干扰处理能力，同系统CCA门限可动态调整，如果LAA小区使用某一同系统CCA门限，接收性能不理想，则可按照一定步长，逐步调低同系统CCA门限；反之如果LAA小区使用某一同系统CCA门限，接收性能非常好，则可按照一定步长，逐步调高同系统CCA门限。
如果LAA小区使用CCA策略3，即仅检测异系统干扰；则LAA小区将异系统干扰能量I_out与预定的干扰门限TH2进行比较，如果I_out>TH2，则表示异系统干扰太强，判定当前信道状态为不空闲，LAA不能接入信道；如果异系统干扰能量不大于干扰门限二，即I_out<＝TH2，则表示异系统干扰在可接受的范围内，判定信道状态为空闲，LAA小区可接入信道。
步骤四：LAA小区配置干扰测量参考信号(可选步骤)。
对于使用CCA策略2和CCA策略3的小区，CCA结果仅能表示几乎不存在异系统干扰，同系统干扰仍然是存在的，需要配置干扰测量参考信号，以便UE进行干扰测量。例如可为LAA小区1配置LAA ZP CSI-RS，在配置了LAA ZP CSI-RS的RE上，LAA小区1静默，不进行发送，而其他小区正常发送。
LAA小区可配置多个ZP CSI-RS配置，其中一部分用于在授权载波上进行干扰测量，一 部分用于在非授权载波上进行干扰测量。对于载频不同的非授权载波，也可以配置不同的ZP CSI-RS。
步骤五：LAA小区接入信道。
在CCA判断信道为空闲后，LAA小区接入信道，开始发送测量参考信号，并进行数据发送，LAA小区接入信道到释放信道期间，称为占用期。
对于初次接入信道的LAA小区，由于没有获得信道状态信息反馈，可使用默认的发送模式发送模式(Transmission Mod，简称为TM)和调制编码方案(Modulation and Coding Scheme，简称为MCS)进行数据发送，也可以使用Pcell指示的发送模式TM和MCS进行数据发送。例如，默认的发送模式为TM2，分集发送方式，默认使用MCS 0进行发送。
对于并非初次接入信道的LAA小区，假设本小区的参考信号发射功率与上次占用保持不变，即信号与干扰加噪声比(Signal to Interence plus Noise Ratio，简称为SINR)＝S/I计算时的有用信号功率S保持不变，只需计算干扰和噪声即可，而CQI根据SINR查SINR-CQI映射表得到。根据采用的CCA策略不同，可以使用不同的干扰噪声测量方法。
如果LAA小区使用CCA策略1，即同时检测异系统干扰和同系统干扰，使用一个干扰门限；CCA空闲表明同系统和异系统的总干扰保持在可接受的范围内；可以采用如下方法来进行CQI估计：
在UE可以利用LAA eNB发送的测量参考信号进行CQI估计之前，eNB可按如下方式获取CQI：
1.对覆盖范围内的UE，在得到新的CQI测量结果上报之前，LAA eNB可使用上次占用期的CQI测量结果进行数据调度发送。
2.在LAA小区CCA期间，PCell可配置UE对目标小区进行干扰测量，如果CCA结果判定信道为空闲，则CCA期间的干扰测量结果可近似占用期的干扰噪声能量Itotal。而根据假设本小区的参考信号发射功率与上次占用保持不变，即有用信号功率保持不变，使用上次占用期通过参考信号估计的有用信号能量近似作为本次占用期的有用信号能量S，UE可估计出SINR＝S/Itotal，并推出CQI。CCA期间的测量结果可以通过Pcell进行上报，也可以在Scell占用期开始后立刻上报。
3.如果LAA eNB可同时获得上次占用期的CQI测量结果，和CCA期间的CQI测量结果，则可以选择使用其中一个CQI，用于数据调度发送；也可以使用两个CQI来推导出一个新的CQI值，例如使用两个CQI的中值，或两个CQI值加权平均后最接近的一个CQI值，例如CQI＝floor(a*CQI1+(1-a)CQI2)。
也可以利用上次占用期的SINR测量结果和CCA期间的SINR测量结果，来推导出新的SINR结果，再用该SINR结果推出CQI。
LAA小区进入占用期后，UE接收测量参考信号，进行有效信号功率和干扰功率测量，并 计算SINR，推出CQI。估计出的CQI结果可在本次占用期进行上报，如果在占用期结束之前无法上报，则可通过Pcell进行上报，以便LAA小区在下次占用时参考。
如果LAA小区使用CCA策略2或CCA策略3，CCA空闲表明异系统干扰保持在可接受的范围内，同系统干扰仍然存在；在占用期，UE测量的LAA干扰应包含两部分，一部分是异系统干扰Iother，一部分是同系统干扰ILAA,可以采用如下方法来进行CQI估计：
在UE可以利用LAA eNB发送的测量参考信号进行CQI估计之前，eNB可按如下方式获取CQI。
1.对覆盖范围内的UE，在得到新的CQI测量结果上报之前，LAA eNB可使用上次占用期的CQI测量结果进行数据调度发送，由于同系统干扰可能在两次占用期存在变化，所以这种方式存在一定误差。
2.对于初次占用的LAA小区，即没有总干扰能量历史统计值Itotal的小区，在LAA小区CCA期间，PCell可配置UE对目标小区进行干扰测量，如果CCA结果判定信道为空闲，则使用UE在CCA期间的干扰测量结果作为总的系统干扰噪声能量Itotal的初始值。
3.根据假设本小区的参考信号发射功率与上次占用保持不变，即有用信号功率保持不变，使用上次占用期通过参考信号估计的有用信号能量近似作为本次占用期的有用信号能量S，并使用总干扰能量的历史统计值Itotal近似作为本次占用期的干扰能量估计，UE可估计出SINR＝S/Itotal，并推出CQI。CCA期间的测量结果可以通过Pcell进行上报，也可以在Scell占用期开始后立刻上报。
4.LAA小区进入占用期后，UE接收测量参考信号，测量有效信号功率S，并利用配置的干扰测量参考信号LAA ZP CSI-RS测量干扰Itotal_cur，以及SINR＝S/Itotal_cur，并推出CQI。
将当次占用期测量得到的干扰Itotal_cur与历史统计的干扰Itotal进行平滑，以得到新的总干扰统计值Itotal＝(1-b)*Itotal+b*Itotal_cur。
3.如果LAA eNB可同时获得上次占用期的CQI测量结果，和CCA期间的CQI测量结果，则可以选择使用其中一个CQI，用于数据调度发送；也可以使用两个CQI来推导出一个新的CQI值，例如使用两个CQI的中值，或两个CQI值加权平均后最接近的一个CQI值，例如CQI＝floor(a*CQI1+(1-a)CQI2)。
也可以利用上次占用期的SINR测量结果和CCA期间的SINR测量结果，来推导出新的SINR结果，再用该SINR结果推出CQI。
在另一个实施例中还提供了一种接收信号强度指示(Received Signal Strength Indicator，简称为RSSI)测量方法，包括：基站配置终端进行RSSI测量；终端根据基站配置进行RSSI测量和上报；
基站配置UE测量的RSSI包括如下类型之一：
RSSI类型一：测量信号源包括终端接收到的所有信号，包括与所述小区属于不同通信系 统的多个网络节点的信号；与所述小区属于相同通信系统，并且与所述小区属于不同运营商的其他小区的信号；以及与服务小区属于相同通信系统，并且与所述小区属于相同运营商的所有小区的信号；
RSSI类型二：测量信号源包括与所述小区属于不同通信系统的多个网络节点的信号；以及与所述小区属于相同通信系统，并且与所述小区属于不同运营商的其他小区的信号；
RSSI类型三：测量信号源包括与所述小区属于不同通信系统的多个网络节点的信号；
相应地，基站为测量的RSSI类型，配置相应地测量子帧集合：
配置测量子帧集合一，用于测量RSSI类型一；
配置测量子帧集合二，用于测量RSSI类型二：在子帧集合二上，与所述小区属于相同通信系统，并且与所述小区属于相同运营商的所有小区静默；
配置测量子帧集合三，用于测量RSSI类型三：在子帧集合三上，与所述小区属于相同通信系统，并且与所述小区属于不同运营商的所有小区静默；同时，与所述小区属于相同通信系统，并且与所述小区属于相同运营商的所有小区静默；
不同类型的RSSI值可以用于不同的目的，例如RSSI类型一，可以用于衡量整个非授权频率层的负载，用于动态频率选择(Dynamic Frequency Selection，简称为DFS)功能；RSSI类型二，可用于衡量非本运营商LAA系统的负荷情况；RSSI类型三，可用于衡量非LAA系统的负荷情况。
基站配置终端测量一个或多个类型的RSSI值，上报一个或多个类型的RSSI值。例如基站可以配置终端测量1、2、3个类型的RSSI值，上报全部测量得到的RSSI值；也可以配置终端测量多个类型的RSSI值，但是只上报其中部分RSSI值。
基站可为不同类型的RSSI测量值配置不同的测量配置，包括测量触发方式(周期上报/非周期上报)、周期测量的周期值等。例如可进行如下配置：RSSI类型一配置为周期测量；RSSI类型二配置为触发测量；RSSI类型三配置为周期测量。
基站可为不同类型的RSSI测量值配置不同的上报配置，包括上报触发方式(周期上报/非周期上报)、周期上报的周期值等。例如可进行如下配置：RSSI类型一配置为周期上报；RSSI类型二配置为触发上报；RSSI类型三配置为周期上报。
终端测量的RSSI定义为在指定测量子帧上观察到的总接收功率的线性平均值。
终端可基于一个或多个测量样本进行RSSI测量，一个测量样本可能包含一个或多个相邻的测量子帧。如果基于一个测量样本进行RSSI测量，则直接将该次测量结果进行上报；如果基于多个测量样本进行RSSI测量，则可将多个测量样本的测量结果平滑后进行上报；也可以将一次占用期内的全部有效RSSI测量值平滑后进行上报。
综上所述，通过本发明提供的非授权载波测量的方法和系统，使得LTE系统的测量行为 能够适应非授权载波上参考信号非连续传输的情况，准确地反应信道状况以及干扰状况，同时能够适应小区在非授权载波和授权载波上切换的测量需求。
在另外一个实施例中，还提供了一种软件，该软件用于执行上述实施例及优选实施方式中描述的技术方案。
在另外一个实施例中，还提供了一种存储介质，该存储介质中存储有上述软件，该存储介质包括但不限于：光盘、软盘、硬盘、可擦写存储器等。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
工业实业性
在本发明实施例中，采用检测非授权载波的信道状态；在信道状态为空闲状态时，获取小区在指定时隙的非授权载波的干扰测量结果；根据干扰测量结果获取占用该非授权载波时的初始CQI估计值。解决了相关技术中单一的测量行为无法满足载波切换的需求的问题，进而提高了CQI测量的准确性。

Claims (48)

  1. 一种信道质量指示CQI估计方法，包括：
    检测非授权载波的信道状态；
    在所述信道状态为空闲状态时，获取小区在指定时隙的所述非授权载波的干扰测量结果；
    根据所述干扰测量结果获取占用所述非授权载波时的初始CQI估计值。
  2. 根据权利要求1所述的方法，其中，检测非授权载波的信道状态包括：
    获取干净信道估计CCA策略；根据所述CCA策略检测非授权载波的信道状态；其中，所述CCA策略包括以下之一：
    策略1：同时检测所述小区的不可协调干扰信号和所述小区的可协调干扰信号，得到检测结果，使用一个CCA阈值与得到的检查结果进行比较，依据比较结果判断所述非授权载波是否处于空闲状态；
    策略2：同时检测所述小区的不可协调干扰信号和所述小区的可协调干扰信号，得到检测结果，使用两个CCA阈值与得到的检查结果进行比较，依据比较结果判断所述非授权载波是否处于空闲状态；
    策略3：仅检测所述小区的不可协调干扰，得到检测结果，根据得到的检查结果与CCA阈值的比较结果，判断所述非授权载波是否处于空闲状态；
    其中，所述小区的不可协调干扰信号包括以下至少之一：与所述小区属于不同通信系统的多个网络节点的干扰；与所述小区属于相同通信系统，并且与所述小区属于不同运营商的其他小区的干扰；
    所述小区的可协调干扰信号包括以下至少之一：与所述小区属于相同通信系统，并且与所述小区属于相同运营商的其他小区的干扰；与所述小区属于相同通信系统，并且与所述小区属于不同运营商的其他小区的干扰。
  3. 根据权利要求2所述的方法，其中，检测所述小区的不可协调干扰信号和/或所述小区的可协调干扰信号的方式包括以下之一：
    在所述小区配置不可协调干扰静默图样时，在所述不可协调干扰静默图样指示的静默时刻进行不可协调干扰测量，得到的干扰测量结果为所述不可协调干扰信号；在所述不可协调干扰静默图样指示的静默时刻之外的时刻进行干扰测量，得到的干扰测量结果包括所述不可协调干扰信号和所述可协调干扰信号；所述可协调干扰信号为所述不可协调干扰信号和所述可协调干扰信号总和与所述不可协调干扰信号的差值；或者，
    在所述小区同时配置了不可协调干扰静默图样和可协调干扰静默图样时，所述小区在所述不可协调干扰静默图样上进行干扰测量，得到的干扰测量结果为所述不可协调干扰信号；在所述可协调干扰静默图样上进行干扰测量，得到的干扰测量结果为所述可协 调干扰信号；或者，
    网络中所有小区统一配置第一不可协调干扰静默图样，与所述小区属于相同运营商的小区配置了第二不可协调干扰静默图样，在所述第二不可协调干扰静默图样指示的静默时刻进行不可协调干扰测量，得到的干扰测量结果为所述不可协调干扰信号，其中，该不可协调干扰信号包括以下至少之一：与所述小区属于不同通信系统的多个网络节点的干扰；与所述小区属于相同通信系统，并且与所述小区属于不同运营商的其他小区的干扰。
  4. 根据权利要求3所述的方法，其中，根据所述策略1检测所述非授权载波的信道状态包括：
    在所述不可协调干扰信号和所述可协调干扰信号的总和不大于第一阈值的情况下，确定所述非授权载波处于空闲状态。
  5. 根据权利要求3所述的方法，其中，根据所述策略2检测所述非授权载波的信道状态包括：
    在所述不可协调干扰信号不大于第二阈值，并且所述可协调干扰信号不大于第三阈值的情况下，确定所述非授权载波处于空闲状态。
  6. 根据权利要求5所述的方法，其中，所述第三阈值由所述小区所属的主小区PCell进行配置。
  7. 根据权利要求2所述的方法，其中，根据所述策略3检测所述非授权载波的信道状态包括：
    在所述不可协调干扰信号不大于第四阈值，确定所述非授权载波处于空闲状态。
  8. 根据权利要求1所述的方法，其中，根据所述干扰测量结果得到占用所述非授权载波时的CQI估计值包括：
    获取所述非授权载波处于所述空闲状态之前的上次被占用时的有用信号能量；
    根据所述有用信号能量与所述干扰测量结果得到信噪比；
    根据所述信噪比获得所述CQI估计值。
  9. 根据权利要求1至8中任一项所述的方法，其中，基站配置所述指定时隙。
  10. 根据权利要求9所述的方法，其中，所述指定时隙由以下至少之一的信息组成：
    一个或多个长期演进LTE子帧、一个或多个LTE符号、一个或多个CCA观察时长。
  11. 根据权利要求9所述的方法，其中，基站配置所述指定时隙的方式包括以下之一：
    所述基站为终端配置周期性的所述指定时隙；
    所述基站为终端配置非周期性的所述指定时隙，触发所述终端进行干扰测量。
  12. 一种接收信号强度指示RSSI测量方法，包括：
    基站发送测量RSSI的指示信号至终端；
    所述基站接收所述终端根据所述指示信号进行RSSI测量的结果。
  13. 根据权利要求12所述的方法，其中，测量的所述RSSI包括如下类型之一：
    RSSI类型一：测量信号源为所述终端接收到的所有信号，包括与所述终端的服务小区属于不同通信系统的多个网络节点的信号；与所述服务小区属于相同通信系统，并且与所述服务小区属于不同运营商的其他小区的信号；以及与所述服务小区属于相同通信系统，并且与所述服务小区属于相同运营商的所有小区的信号；
    RSSI类型二：测量信号源包括与所述服务小区属于不同通信系统的多个网络节点的信号；以及与所述服务小区属于相同通信系统，并且与所述服务小区属于不同运营商的其他小区的信号；
    RSSI类型三：测量信号源包括与所述服务小区属于不同通信系统的多个网络节点的信号；
    其中，所述RSSI类型一，用于衡量整个非授权频率层的负载；所述RSSI类型二，用于衡量非本运营商LAA系统的负荷情况；所述RSSI类型三，用于衡量非LAA系统的负荷情况。
  14. 根据权利要求13所述的方法，其中，所述指示信号包括：所述基站根据测量的所述RSSI的类型，配置测量子帧集合，其中所述测量子帧集合包括以下之一：
    测量子帧集合一，用于测量所述RSSI类型一；
    测量子帧集合二，用于测量所述RSSI类型二：在所述测量子帧集合二上，与所述服务小区属于相同通信系统并且与所述服务小区属于相同运营商的所有小区静默；
    测量子帧集合三，用于测量所述RSSI类型三：在所述测量子帧集合三上，与所述服务小区属于相同通信系统并且与所述服务小区属于不同运营商的所有小区静默；同时，与所述服务小区属于相同通信系统并且与所述服务小区属于相同运营商的所有小区静默。
  15. 根据权利要求12所述的方法，其中，基站配置测量RSSI的指示信号包括：
    所述基站为所述终端进行一个或多个RSSI类型的测量配置；其中，在所述基站配置所述终端测量一个或多个类型的RSSI值时，所述基站接收所述终端上报一个或多个类型的RSSI值；在所述基站为不同类型的RSSI测量值配置不同的测量配置时，为所述终端配置测量触发方式和/或周期测量的周期值；在所述基站为不同类型的RSSI测量值配置不同的上报配置时，为所述终端配置上报触发方式和/或周期上报的周期值。
  16. 根据权利要求12所述的方法，其中，所述RSSI为在指定测量子帧上观察到的总接收功率的线性平均值。
  17. 根据权利要求12所述的方法，其中，所述指示信号包括一个或多个测量样本，其中，所述一个或多个测量样本是所述终端进行RSSI测量的依据，所述一个测量样本包含一个或多个相邻的测量子帧。
  18. 一种接收信号强度指示RSSI测量方法，包括：
    终端接收基站发送的测量RSSI的指示信号；
    所述终端根据所述指示信号进行RSSI测量，得到测量结果，并将所述测量结果发送至所述基站。
  19. 根据权利要求18所述的方法，其中，测量的所述RSSI包括如下类型之一：
    RSSI类型一：测量信号源为所述终端接收到的所有信号，包括与所述终端的服务小区属于不同通信系统的多个网络节点的信号；与所述服务小区属于相同通信系统，并且与所述服务小区属于不同运营商的其他小区的信号；以及与所述服务小区属于相同通信系统，并且与所述服务小区属于相同运营商的所有小区的信号；
    RSSI类型二：测量信号源包括与所述服务小区属于不同通信系统的多个网络节点的信号；以及与所述服务小区属于相同通信系统，并且与所述服务小区属于不同运营商的其他小区的信号；
    RSSI类型三：测量信号源包括与所述服务小区属于不同通信系统的多个网络节点的信号；
    其中，所述RSSI类型一，用于衡量整个非授权频率层的负载；所述RSSI类型二，用于衡量非本运营商LAA系统的负荷情况；所述RSSI类型三，用于衡量非LAA系统的负荷情况。
  20. 根据权利要求19所述的方法，其中，所述指示信号包括所述基站根据所述RSSI的类型配置的测量子帧集合，其中所述测量子帧集合包括以下之一：
    测量子帧集合一，用于测量所述RSSI类型一；
    测量子帧集合二，用于测量所述RSSI类型二：在所述测量子帧集合二上，与所述服务小区属于相同通信系统并且与所述服务小区属于相同运营商的所有小区静默；
    测量子帧集合三，用于测量所述RSSI类型三：在所述测量子帧集合三上，与所述服务小区属于相同通信系统并且与所述服务小区属于不同运营商的所有小区静默；同时，与所述服务小区属于相同通信系统并且与所述服务小区属于相同运营商的所有小区静默。
  21. 根据权利要求18所述的方法，其中，所述指示信号包括：
    所述基站为所述终端进行一个或多个RSSI类型的测量配置；其中，在所述基站配置所述终端测量一个或多个类型的RSSI值时，所述终端将一个或多个类型的RSSI值上报给所述基站；在所述基站为不同类型的RSSI测量值配置不同的测量配置时，为所述终端配置测量触发方式和/或周期测量的周期值；在所述基站为不同类型的RSSI测量值配置不同的上报配置时，为所述终端配置上报触发方式和/或周期上报的周期值。
  22. 根据权利要求18所述的方法，其中，所述RSSI为在指定测量子帧上观察到的总接收功率的线性平均值。
  23. 根据权利要求18所述的方法，其中，所述指示信号包括一个或多个测量样本，所述终端根据所述一个或多个测量样本进行RSSI测量，其中，一个测量样本包含一个或多个相邻的测量子帧。
  24. 根据权利要求23所述的方法，其中，所述终端根据所述指示信号进行RSSI测量，得到测量结果，并将所述测量结果发送至所述基站包括：
    在所述终端基于一个测量样本进行RSSI测量时，直接将该次测量结果进行上报给所述基站；在所述终端基于多个测量样本进行RSSI测量时，将多个测量样本对应的测量结果平滑后进行上报或者将一次占用期内的全部有效RSSI测量值平滑后上报给所述基站。
  25. 一种信道质量指示CQI估计装置，所述装置应用于基站，包括：
    检测模块，设置为检测非授权载波的信道状态；
    获取模块，设置为在所述信道状态为空闲状态时，获取小区在指定时隙的所述非授权载波的干扰测量结果；
    估计模块，设置为根据所述干扰测量结果获取占用所述非授权载波时的初始CQI估计值。
  26. 根据权利要求25所述的装置，其中，所述检测模块包括：
    第一获取单元，设置为获取干净信道估计CCA策略；
    检测单元，设置为根据所述CCA策略检测非授权载波的信道状态；其中，所述CCA策略包括以下之一：
    策略1：同时检测所述小区的不可协调干扰信号和所述小区的可协调干扰信号，得到检测结果，使用一个CCA阈值与得到的检查结果进行比较，依据比较结果判断所述非授权载波是否处于空闲状态；
    策略2：同时检测所述小区的不可协调干扰信号和所述小区的可协调干扰信号，得到检测结果，使用两个CCA阈值与得到的检查结果进行比较，依据比较结果判断所述非授权载波是否处于空闲状态；
    策略3：仅检测所述小区的不可协调干扰，得到检测结果，根据得到的检查结果与 CCA阈值的比较结果，判断所述非授权载波是否处于空闲状态；
    其中，所述小区的不可协调干扰信号包括以下至少之一：与所述小区属于不同通信系统的多个网络节点的干扰；与所述小区属于相同通信系统，并且与所述小区属于不同运营商的其他小区的干扰；
    所述小区的可协调干扰信号包括以下至少之一：与所述小区属于相同通信系统，并且与所述小区属于相同运营商的其他小区的干扰；与所述小区属于相同通信系统，并且与所述小区属于不同运营商的其他小区的干扰。
  27. 根据权利要求26所述的装置，其中，所述检测单元还设置为检测所述小区的不可协调干扰信号和/或所述小区的可协调干扰信号，其中检测的方式包括以下之一：
    在所述小区配置不可协调干扰静默图样时，在所述不可协调干扰静默图样指示的静默时刻进行不可协调干扰测量，得到的干扰测量结果为所述不可协调干扰信号；在所述不可协调干扰静默图样指示的静默时刻之外的时刻进行干扰测量，得到的干扰测量结果包括所述不可协调干扰信号和所述可协调干扰信号；所述可协调干扰信号为所述不可协调干扰信号和所述可协调干扰信号总和与所述不可协调干扰信号的差值；或者，
    在所述小区同时配置了不可协调干扰静默图样和可协调干扰静默图样时，所述小区在所述不可协调干扰静默图样上进行干扰测量，得到的干扰测量结果为所述不可协调干扰信号；在所述可协调干扰静默图样上进行干扰测量，得到的干扰测量结果为所述可协调干扰信号；或者，
    网络中所有小区统一配置第一不可协调干扰静默图样，与所述小区属于相同运营商的小区配置了第二不可协调干扰静默图样，在所述第二不可协调干扰静默图样指示的静默时刻进行不可协调干扰测量，得到的干扰测量结果为所述不可协调干扰信号，其中，该不可协调干扰信号包括以下至少之一：与所述小区属于不同通信系统的多个网络节点的干扰；与所述小区属于相同通信系统，并且与所述小区属于不同运营商的其他小区的干扰。
  28. 根据权利要求27所述的装置，其中，所述检测单元还设置为根据所述策略1检测所述非授权载波的信道状态，其中，在所述不可协调干扰信号和所述可协调干扰信号的总和不大于第一阈值的情况下，确定所述非授权载波处于空闲状态。
  29. 根据权利要求27所述的装置，其中，所述检测单元还设置为根据所述策略2检测所述非授权载波的信道状态，其中，在所述不可协调干扰信号不大于第二阈值，并且所述可协调干扰信号不大于第三阈值的情况下，确定所述非授权载波处于空闲状态。
  30. 根据权利要求29所述的装置，其中，所述第三阈值由所述小区所属的主小区PCell进行配置。
  31. 根据权利要求26所述的装置，其中，所述检测单元还设置为根据所述策略3检测所述非 授权载波的信道状态，其中，在所述不可协调干扰信号不大于第四阈值，确定所述非授权载波处于空闲状态。
  32. 根据权利要求26所述的装置，其中，所述估计模块包括：
    第二获取单元，设置为获取所述非授权载波处于所述空闲状态之前的上次被占用时的有用信号能量；
    第三获取单元，设置为根据所述有用信号能量与所述干扰测量结果得到信噪比；
    估计单元，设置为根据所述信噪比获得所述CQI估计值。
  33. 根据权利要求26至32中任一项所述的装置，其中，所述指定时隙由基站配置。
  34. 根据权利要求33所述的装置，其中，所述指定时隙由以下至少之一的信息组成：
    一个或多个长期演进LTE子帧、一个或多个LTE符号、一个或多个CCA观察时长。
  35. 根据权利要求33所述的装置，其中，所述装置还包括以下至少之一的模块：
    第一配置模块，设置为为终端配置周期性的所述指定时隙；
    第二配置模块，设置为为终端配置非周期性的所述指定时隙，触发所述终端进行干扰测量。
  36. 一种接收信号强度指示RSSI测量装置，所述装置应用于基站，所述装置包括：
    发送模块，设置为发送测量RSSI的指示信号给终端；
    接收模块，设置为接收所述终端根据所述指示信号进行RSSI测量的结果。
  37. 根据权利要求36所述的装置，其中，测量的所述RSSI包括如下类型之一：
    RSSI类型一：测量信号源为所述终端接收到的所有信号，包括与所述终端的服务小区属于不同通信系统的多个网络节点的信号；与所述服务小区属于相同通信系统，并且与所述服务小区属于不同运营商的其他小区的信号；以及与所述服务小区属于相同通信系统，并且与所述服务小区属于相同运营商的所有小区的信号；
    RSSI类型二：测量信号源包括与所述服务小区属于不同通信系统的多个网络节点的信号；以及与所述服务小区属于相同通信系统，并且与所述服务小区属于不同运营商的其他小区的信号；
    RSSI类型三：测量信号源包括与所述服务小区属于不同通信系统的多个网络节点的信号；
    其中，所述RSSI类型一，用于衡量整个非授权频率层的负载；所述RSSI类型二，用于衡量非本运营商LAA系统的负荷情况；所述RSSI类型三，用于衡量非LAA系统的负荷情况。
  38. 根据权利要求37所述的装置，其中，所述指示信号包括：所述基站根据测量的所述RSSI的类型，配置测量子帧集合，其中所述测量子帧集合包括以下之一：
    测量子帧集合一，用于测量所述RSSI类型一；
    测量子帧集合二，用于测量所述RSSI类型二：在所述测量子帧集合二上，与所述服务小区属于相同通信系统并且与所述服务小区属于相同运营商的所有小区静默；
    测量子帧集合三，用于测量所述RSSI类型三：在所述测量子帧集合三上，与所述服务小区属于相同通信系统并且与所述服务小区属于不同运营商的所有小区静默；同时，与所述服务小区属于相同通信系统并且与所述服务小区属于相同运营商的所有小区静默。
  39. 根据权利要求36所述的装置，其中，所述指示信号包括：所述基站为所述终端进行一个或多个RSSI类型的测量配置；其中，在所述基站配置所述终端测量一个或多个类型的RSSI值时，所述基站接收所述终端上报一个或多个类型的RSSI值；在所述基站为不同类型的RSSI测量值配置不同的测量配置时，为所述终端配置测量触发方式和/或周期测量的周期值；在所述基站为不同类型的RSSI测量值配置不同的上报配置时，为所述终端配置上报触发方式和/或周期上报的周期值。
  40. 根据权利要求36所述的装置，其中，所述RSSI为在指定测量子帧上观察到的总接收功率的线性平均值。
  41. 根据权利要求36所述的装置，其中，所述指示信号包括一个或多个测量样本，其中，所述一个或多个测量样本是所述终端进行RSSI测量的依据，所述一个测量样本包含一个或多个相邻的测量子帧。
  42. 一种接收信号强度指示RSSI测量装置，所述装置应用于终端，所述装置包括：
    接收模块，设置为接收基站发送的测量RSSI的指示信号；
    处理模块，设置为根据所述指示信号进行RSSI测量，得到测量结果，并将所述测量结果发送至所述基站。
  43. 根据权利要求42所述的装置，其中，测量的所述RSSI包括如下类型之一：
    RSSI类型一：测量信号源为所述终端接收到的所有信号，包括与所述终端的服务小区属于不同通信系统的多个网络节点的信号；与所述服务小区属于相同通信系统，并且与所述服务小区属于不同运营商的其他小区的信号；以及与所述服务小区属于相同通信系统，并且与所述服务小区属于相同运营商的所有小区的信号；
    RSSI类型二：测量信号源包括与所述服务小区属于不同通信系统的多个网络节点的信号；以及与所述服务小区属于相同通信系统，并且与所述服务小区属于不同运营商的其他小区的信号；
    RSSI类型三：测量信号源包括与所述服务小区属于不同通信系统的多个网络节点的信号；
    其中，所述RSSI类型一，用于衡量整个非授权频率层的负载，实现DFS功能；所述RSSI类型二，用于衡量非本运营商LAA系统的负荷情况；所述RSSI类型三，用于衡量非LAA系统的负荷情况。
  44. 根据权利要求43所述的装置，其中，所述指示信号包括所述基站根据所述RSSI的类型配置的测量子帧集合，其中所述测量子帧集合包括以下之一：
    测量子帧集合一，用于测量所述RSSI类型一；
    测量子帧集合二，用于测量所述RSSI类型二：在所述测量子帧集合二上，与所述服务小区属于相同通信系统并且与所述服务小区属于相同运营商的所有小区静默；
    测量子帧集合三，用于测量所述RSSI类型三：在所述测量子帧集合三上，与所述服务小区属于相同通信系统并且与所述服务小区属于不同运营商的所有小区静默；同时，与所述服务小区属于相同通信系统并且与所述服务小区属于相同运营商的所有小区静默。
  45. 根据权利要求42所述的装置，其中，所述指示信号包括：
    所述基站为所述终端进行一个或多个RSSI类型的测量配置；其中，在所述基站配置所述终端测量一个或多个类型的RSSI值时，所述终端将一个或多个类型的RSSI值上报给所述基站；在所述基站为不同类型的RSSI测量值配置不同的测量配置时，为所述终端配置测量触发方式和/或周期测量的周期值；在所述基站为不同类型的RSSI测量值配置不同的上报配置时，为所述终端配置上报触发方式和/或周期上报的周期值。
  46. 根据权利要求42所述的装置，其中，所述RSSI为在指定测量子帧上观察到的总接收功率的线性平均值。
  47. 根据权利要求42所述的装置，其中，所述指示信号包括一个或多个测量样本，所述终端根据所述一个或多个测量样本进行RSSI测量，其中，一个测量样本包含一个或多个相邻的测量子帧。
  48. 根据权利要求47所述的装置，其中，所述处理模块还设置为在所述终端基于一个测量样本进行RSSI测量时，直接将该次测量结果进行上报给所述基站；在所述终端基于多个测量样本进行RSSI测量时，将多个测量样本对应的测量结果平滑后进行上报或者将一次占用期内的全部有效RSSI测量值平滑后上报给所述基站。
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