WO2016095398A1 - Rrm测量方法及测量***、终端和基站 - Google Patents

Rrm测量方法及测量***、终端和基站 Download PDF

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Publication number
WO2016095398A1
WO2016095398A1 PCT/CN2015/077986 CN2015077986W WO2016095398A1 WO 2016095398 A1 WO2016095398 A1 WO 2016095398A1 CN 2015077986 W CN2015077986 W CN 2015077986W WO 2016095398 A1 WO2016095398 A1 WO 2016095398A1
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WIPO (PCT)
Prior art keywords
base station
channel
uplink channel
downlink channel
downlink
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PCT/CN2015/077986
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English (en)
French (fr)
Inventor
李明菊
朱亚军
雷艺学
张云飞
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宇龙计算机通信科技(深圳)有限公司
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Priority to EP15868912.5A priority Critical patent/EP3236687A4/en
Publication of WO2016095398A1 publication Critical patent/WO2016095398A1/zh
Priority to US15/497,212 priority patent/US10405250B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H04W36/0094—Definition of hand-off measurement parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an RRM measurement method when an LTE system operates in an unlicensed frequency band, an RRM measurement system when an LTE system operates in an unlicensed frequency band, a terminal, and a base station.
  • 3GPP is discussing how to use unlicensed spectrum, such as the 2.4 GHz and 5 GHz bands, with the help of licensed spectrum.
  • unlicensed spectrum are currently mainly used in systems such as Wi-Fi, Bluetooth, radar, and medical.
  • LAA LTE Assisted Access
  • TDD mode TDD mode
  • LTE systems operating in unlicensed bands have the ability to provide higher spectral efficiency and greater coverage, while allowing data traffic to be licensed based on the same core network. Seamless switching between segments and unlicensed bands. For the user, this means a better broadband experience, higher speed, better stability and mobility.
  • Wi-Fi Wireless Fidelity
  • CSMA/CD Carrier Sense Multiple Access/Collision Detection
  • the basic principle of this method is Wi-Fi. Before the AP (Access Point) or the terminal sends signaling or data, it must first monitor whether other APs or other terminals are transmitting/receiving signaling or data. If so, continue to listen until it is monitored. If not, a random number is generated as the backoff time. If no signaling or data transmission is detected during this backoff time, the AP or the terminal may start transmitting signaling or data after the end of the backoff time. The process is shown in Figure 1.
  • the LTE network has good orthogonality to ensure the interference level, the uplink and downlink transmissions between the base station and the user do not need to consider whether other base stations or other users are transmitting data. If LTE is used on an unlicensed band, it does not consider whether other devices are using unlicensed bands nearby, which will cause great interference to Wi-Fi devices. Because LTE transmits as long as there is traffic, there is no monitoring rule, then the Wi-Fi device cannot transmit when LTE has service transmission, and can only detect the channel idle state for data transmission after the LTE service transmission is completed.
  • LBT Listen Before Talk
  • the repetition period of the LBT detection is 10 ms and the LBT occupation time is 1 ms, that is, one subframe. If the channel idle is detected in the first LBT period shown in FIG. 2, the surrounding is The interference is small, then other subframes can be occupied in this period; if the channel is busy in the second LBT period, the surrounding interference is large, and other subframes cannot be occupied in this period.
  • RRM Radio Resource Management
  • RSRP Reference Signal Receiving Power
  • RSRQ Reference Signal Receiving Quality
  • the invention is based on at least one of the above technical problems, and proposes a new RRM measurement scheme when the LTE system works in an unlicensed frequency band, and can respectively measure the value of the reference signal received power and the reference signal received power for the channel state of the base station.
  • the serving base station of the terminal can accurately determine the service performance of the neighboring base station to select a more suitable secondary cell base station or select a more suitable target base station when switching.
  • an RRM measurement method for an LTE system applicable to a terminal in an unlicensed frequency band comprising: receiving a downlink signal sent by each base station in at least one base station, and according to The downlink signal determines a busy state of the uplink channel and/or the downlink channel of each base station; when the uplink channel and/or the downlink channel of each base station are in a busy state and an idle state, respectively, statistics correspond to the a value of a reference signal received quality of each base station; a value of the reference signal received quality when the uplink channel and/or the downlink channel of each base station is in a busy state, and an uplink channel of each of the base stations And the value of the reference signal received quality that is counted when the downlink channel is in an idle state is reported to the serving base station of the terminal.
  • the busy state of the uplink channel and/or the downlink channel of each base station is determined by the downlink signal transmitted by each base station, respectively. Counting the value of the reference signal reception quality when the uplink channel and/or the downlink channel of each base station are in a busy state and an idle state, so that the reference signal reception quality when the uplink channel and/or the downlink channel of the base station are in different states can be distinguished.
  • the measurement that is, the measurement can be performed separately when the surrounding interference is weak (when the channel is idle) and when the interference is strong (when the channel is busy), thereby ensuring that the serving base station selects a more suitable secondary cell base station or selects a more suitable when switching.
  • Target base station The measurement, that is, the measurement can be performed separately when the surrounding interference is weak (when the channel is idle) and when the interference is strong (when the channel is busy), thereby ensuring that the serving base station selects a more suitable secondary cell base station or selects a more suitable when switching.
  • Target base station can be performed separately when the surrounding interference is weak (when the channel is idle) and when the interference is strong (when the channel is busy), thereby ensuring that the serving base station selects a more suitable secondary cell base station or selects a more suitable when switching.
  • the method further includes: calculating a busy busy ratio of the uplink channel and/or the downlink channel of each base station, and calculating a busy busy ratio of the uplink channel and/or the downlink channel of each base station Reported to the serving base station.
  • the serving base station can determine, according to the idle ratio of the uplink channel and/or the downlink channel of each base station, The service performance of the base stations can, in turn, select a more suitable secondary cell base station or select a more suitable target base station at the time of handover.
  • the method further includes: measuring, when the uplink channel and/or the downlink channel of each base station are in a busy state and/or an idle state, measuring a reference signal received power corresponding to each of the base stations. a value; a value corresponding to the reference signal received power of each of the base stations is reported to the serving base station.
  • the measurement since the value of the reference signal received power is not affected by the surrounding interference signal, the measurement may be performed when the uplink channel and/or the downlink channel are in a busy state, or may be in the uplink channel and/or the downlink channel. Measurement is performed in the idle state.
  • the scheme for determining, by the terminal, the busy channel of the uplink channel and/or the downlink channel of the base station may include:
  • the step of determining the busy state of the uplink channel and/or the downlink channel of each base station according to the downlink signal specifically includes: detecting a period in which each base station sends a reference signal; Determining that an uplink channel and/or a downlink channel of any one of the base stations are in a busy state when a period of the reference signal sent by any one of the at least one base station is greater than or equal to a predetermined period; and in the at least one base station When the period of the reference signal sent by any base station is less than the predetermined period, it is determined that the uplink channel and/or the downlink channel of any one of the base stations is in an idle state.
  • the base station since the base station can set the transmission period of the reference signal after determining the state of the uplink channel and/or the downlink channel, specifically, if the uplink channel and/or the downlink channel of the base station are in a busy state, the reference signal is sent. If the uplink channel and/or the downlink channel of the base station are in an idle state, the period of transmitting the reference signal is small, and the terminal can determine the idle state of the uplink channel and/or the downlink channel according to the period in which the base station sends the reference signal.
  • the step of determining, according to the downlink signal, the busy state of the uplink channel and/or the downlink channel of each base station specifically includes: receiving the at least one Determining whether the uplink channel and/or the downlink channel of any one of the base stations are idle when the resource reservation signal sent by any one of the base stations or the signal indicating that the uplink channel and/or the downlink channel of the any of the base stations are in an idle state status.
  • the base station can explicitly inform the terminal of the status of its uplink channel and/or downlink channel.
  • the step of determining the busy state of the uplink channel and/or the downlink channel of each base station according to the downlink signal specifically includes:
  • the terminal When receiving an instruction sent by any one of the at least one base station indicating that the micro cell base station is turned off, determining that the uplink channel and/or the downlink channel of the any base station are in a busy state. Specifically, if the terminal receives an instruction sent by any base station to indicate that the micro cell base station is turned off, it may directly determine that the channel of any one of the base stations is in a busy state.
  • an RRM measurement method for an LTE system that is applicable to a base station when operating in an unlicensed frequency band, comprising: receiving an uplink channel and/or a downlink channel of each of the at least one base station reported by the terminal a value of the reference signal received quality when the state is busy and a value of the reference signal received quality when the uplink channel and/or the downlink channel of each base station are in an idle state; according to the uplink channel of each base station And determining whether the value of the reference signal received quality when the downlink channel is in a busy state and the value of the reference signal received quality when the uplink channel and/or the downlink channel of each base station are in an idle state, determining each of the Service performance of the base stations.
  • the (serving base station of the terminal) since the determination of the reception quality of the reference signal needs to take into consideration the surrounding interference signal, the (serving base station of the terminal) is in the uplink channel and/or the downlink channel of each of the at least one base station reported by the receiving terminal.
  • the value of the reference signal reception quality in the busy state and the idle state can accurately determine the service performance of each base station, thereby ensuring that the serving base station selects a more suitable secondary cell base station or selects a more suitable target base station at the time of handover.
  • the method further includes: receiving an idle ratio of an uplink channel and/or a downlink channel of each of the base stations reported by the terminal, and/or receiving an uplink of the other base station transmitted by another base station.
  • the free busy ratio of the channel and/or the downlink channel; the idle busy ratio of the uplink channel and/or the downlink channel of each base station, and/or the uplink channel and/or downlink of the other base station The busyness ratio of the channel determines the service performance of each of the base stations and/or the other base stations.
  • the serving base station can determine each of the uplink channel and/or the downlink channel of each base station according to the idle busy ratio of the uplink channel and/or the downlink channel of each base station reported by the terminal.
  • the service performance of the base station can, in turn, select a more suitable secondary cell base station or select a more suitable target base station at the time of handover.
  • the method further includes: determining, according to the service performance of the user, whether the handover to the target base station is required to provide the service to the terminal, and determining that the handover to the target base station is required to provide the service to the terminal, according to Selecting, by the service performance of the at least one base station, the target base station; and/or selecting a target base station as a secondary cell base station according to service performance of the at least one base station.
  • the step of selecting the target base station includes a combination of any one or more of the following: selecting the uplink channel and/or the downlink channel is in a busy state, and the value of the reference signal received quality is the largest.
  • a base station that has the largest value of the reference signal received by the base station as the target base station selects an uplink channel, and/or the downlink channel is in an idle state, and uses the base station as the target base station to select an uplink channel and/or a downlink channel.
  • the base station with the largest busy ratio is used as the target base station.
  • the method further includes: indicating that the terminal measures the value of the reference signal reception quality at the specified time-frequency location.
  • an RRM measurement system is also provided, which is applicable to the LTE system of the terminal, and includes: a receiving unit, configured to receive a downlink signal sent by each base station in the at least one base station; a determining unit, configured to determine, according to the downlink signal received by the receiving unit, a busy state of an uplink channel and/or a downlink channel of each base station; a statistics unit, configured to: use an uplink channel of each of the base stations And/or when the downlink channel is in the busy state and the idle state, respectively, the values of the reference signal receiving quality corresponding to each of the base stations are counted; and the transmitting unit is configured to set the uplink channel and/or the downlink channel of each of the base stations The value of the reference signal received quality and the value of the reference signal received quality when the uplink channel and/or the downlink channel of each base station are in an idle state are reported to the service of the terminal. Base station.
  • the determination of the reception quality of the reference signal needs to take into consideration the surrounding dry Disturbing the signal, so determining the busy state of the uplink channel and/or the downlink channel of each base station according to the downlink signal sent by each base station, to separately count the uplink channel and/or the downlink channel of each base station are in a busy state and idle
  • the value of the reference signal reception quality in the state enables distinguishing measurement of the reference signal reception quality when the uplink channel and/or the downlink channel of the base station are in different states, that is, the surrounding interference can be weak (when the channel is idle) and the interference is relatively When the channel is strong (when the channel is busy), the measurement is performed separately, thereby ensuring that the serving base station selects a more suitable secondary cell base station or selects a more suitable target base station at the time of handover.
  • the method further includes: a calculating unit, configured to calculate a busy busy ratio of the uplink channel and/or the downlink channel of each base station; the transmitting unit is further configured to: The idle ratio of the uplink channel and/or the downlink channel is reported to the serving base station.
  • the serving base station can determine, according to the idle ratio of the uplink channel and/or the downlink channel of each base station, The service performance of the base stations can, in turn, select a more suitable secondary cell base station or select a more suitable target base station at the time of handover.
  • the method further includes: a measuring unit, configured to measure, when the uplink channel and/or the downlink channel of each base station are in a busy state and/or an idle state, measure corresponding to each of the base stations
  • the reference signal receives the value of the power; the transmission unit is further configured to report a value of the reference signal received power corresponding to each of the base stations to the serving base station.
  • the measurement since the value of the reference signal received power is not affected by the surrounding interference signal, the measurement may be performed when the uplink channel and/or the downlink channel are in a busy state, or may be in the uplink channel and/or the downlink channel. Measurement is performed in the idle state.
  • the scheme for determining, by the terminal, the busy channel of the uplink channel and/or the downlink channel of the base station may include:
  • the determining unit includes: a detecting unit, configured to detect a period in which each of the base stations transmits a reference signal; and an executing unit, configured to send in any one of the at least one base station Determining, when the period of the reference signal is greater than or equal to a predetermined period, determining that the uplink channel and/or the downlink channel of the any base station are in a busy state, and for using the period of the reference signal sent by any one of the at least one base station Determined less than the predetermined period The uplink channel and/or the downlink channel of any of the base stations are in an idle state.
  • the base station since the base station can set the transmission period of the reference signal after determining the state of the uplink channel and/or the downlink channel, specifically, if the uplink channel and/or the downlink channel of the base station are in a busy state, the reference signal is sent. If the uplink channel and/or the downlink channel of the base station are in an idle state, the period of transmitting the reference signal is small, and the terminal can determine the idle state of the uplink channel and/or the downlink channel according to the period in which the base station sends the reference signal.
  • the determining unit is specifically configured to: receive a resource reservation signal sent by any one of the at least one base station or indicate an uplink channel and/or a downlink channel of the any base station.
  • the signal is in an idle state, it is determined that the uplink channel and/or the downlink channel of any one of the base stations is in an idle state.
  • the base station can explicitly inform the terminal of the status of its uplink channel and/or downlink channel.
  • the determining unit is specifically configured to: when receiving an instruction sent by any one of the at least one base station to indicate that the micro cell base station is turned off, determine an uplink channel of the any base station and / or the downlink channel is busy. Specifically, if the terminal receives an instruction sent by any base station to indicate that the micro cell base station is turned off, it may directly determine that the channel of any one of the base stations is in a busy state.
  • a terminal comprising a communication bus, an input device, an output device, a memory, and a processor, wherein:
  • the communication bus is configured to implement connection communication between the input device, the output device, the memory, and the processor;
  • the input device is configured to receive a downlink signal
  • the output device is configured to report a value of a reference signal received quality when the uplink channel and/or the downlink channel of each base station are in a busy state, and when the uplink channel and/or the downlink channel of each base station are in an idle state. Counting the value of the reference signal reception quality;
  • the memory stores a set of program codes, and the processor calls the program code stored in the memory to perform the following operations:
  • the output device comparing, by the output device, the value of the reference signal received quality when the uplink channel and/or the downlink channel of each base station is in a busy state, and the uplink channel and/or the downlink channel of each base station are idle.
  • the value of the reference signal received quality that is counted in the state is reported to the serving base station of the terminal.
  • the processor is further configured to:
  • the processor is further configured to:
  • the value of the reference signal received power corresponding to each of the base stations is reported to the serving base station by the output device.
  • the determining, by the processor, the busy state of the uplink channel and/or the downlink channel of each of the base stations according to the downlink signal specifically:
  • the determining, by the processor, the busy state of the uplink channel and/or the downlink channel of each of the base stations according to the downlink signal specifically:
  • the determining, by the processor, the busy state of the uplink channel and/or the downlink channel of each of the base stations according to the downlink signal specifically:
  • an RRM measurement system for an LTE system in a non-licensed frequency band, and includes: a receiving unit, configured to receive an uplink channel of each of the at least one base station reported by the terminal And a value of the reference signal received quality when the downlink channel is in a busy state and a value of the reference signal received quality when the uplink channel and/or the downlink channel of each base station are in an idle state; determining unit, And a reference calculated according to the value of the reference signal received quality when the uplink channel and/or the downlink channel of each base station are in a busy state, and the uplink channel and/or the downlink channel of each base station are in an idle state.
  • the value of the signal reception quality determines the service performance of each of the base stations.
  • the (serving base station of the terminal) since the determination of the reception quality of the reference signal needs to take into consideration the surrounding interference signal, the (serving base station of the terminal) is in the uplink channel and/or the downlink channel of each of the at least one base station reported by the receiving terminal.
  • the value of the reference signal reception quality in the busy state and the idle state can accurately determine the service performance of each base station, thereby ensuring that the serving base station selects a more suitable secondary cell base station or selects a more suitable target base station at the time of handover.
  • the receiving unit is further configured to: receive a busy ratio of an uplink channel and/or a downlink channel of each of the base stations reported by the terminal, and/or receive a transmission by another base station.
  • the determining unit is further configured to: according to the idle channel ratio of the uplink channel and/or the downlink channel of each base station, and/or the other base station
  • the idle ratio of the uplink channel and/or the downlink channel determines the service performance of each of the base stations and/or the other base stations.
  • the serving base station can determine each of the uplink channel and/or the downlink channel of each base station according to the idle busy ratio of the uplink channel and/or the downlink channel of each base station reported by the terminal.
  • the service performance of the base station can, in turn, select a more suitable secondary cell base station or select a more suitable target base station at the time of handover.
  • the method further includes: a determining unit, configured to determine, according to the service performance of the base station, whether to switch to a target base station to provide a service to the terminal; and a first selecting unit, configured to: And determining, by the unit, that the target base station provides a service to the terminal, selecting the target base station according to service performance of the at least one base station; and/or a second selecting unit, configured to serve according to the at least one base station The performance is selected as the target base station of the secondary cell base station.
  • the first selecting unit and/or the second selecting unit is specifically configured to: select the quality of the reference signal received when the uplink channel and/or the downlink channel are in a busy state. a base station having the largest value as the target base station; and/or selecting a base station having the highest value of the reference signal received quality when the uplink channel and/or the downlink channel are in an idle state as the target base station; and/or selecting an uplink The base station having the largest free busy ratio of the channel and/or the downlink channel serves as the target base station.
  • the method further includes: a notification unit, configured to instruct the terminal to measure a value of the reference signal reception quality at the specified time-frequency position.
  • a base station comprising a communication bus, an input device, a memory, and a processor, wherein:
  • the communication bus is configured to implement connection communication between the input device, the memory, and the processor
  • the input device is configured to receive a value of a reference signal received quality and an uplink channel of each of the base stations when the uplink channel and/or the downlink channel of each of the at least one base station reported by the terminal is in a busy state. Or the value of the reference signal received quality when the downlink channel is in an idle state;
  • the memory stores a set of program codes, and the processor calls the program code stored in the memory to perform the following operations:
  • Counting according to when each of the base stations' uplink channel and/or downlink channel is in a busy state The value of the reference signal reception quality and the value of the reference signal reception quality counted when the uplink channel and/or the downlink channel of each base station are in an idle state determine the service performance of each of the base stations.
  • the processor is further configured to:
  • Determining each of the base stations and/or the idle channel ratio of the uplink channel and/or the downlink channel of each of the base stations, and/or the idle channel ratio of the uplink channel and/or the downlink channel of the other base station Service performance of other base stations.
  • the processor is further configured to:
  • the processor selects the target base station, and specifically includes a combination of any one or more of the following:
  • the base station having the highest value of the reference signal received quality as the target base station selecting the uplink channel, and/or the downlink channel is in an idle state
  • the base station having the largest value of the signal reception quality serves as the target base station as the target base station, and the base station having the largest idle ratio of the selected uplink channel and/or the downlink channel.
  • the processor is further configured to:
  • the reference signal received power can be separately measured for the channel state of the base station, so that the serving base station of the terminal can accurately determine the service performance of the neighboring base station, so as to select a more suitable secondary cell base station or select a more suitable when switching.
  • Target base station the serving base station of the terminal can accurately determine the service performance of the neighboring base station, so as to select a more suitable secondary cell base station or select a more suitable when switching.
  • FIG. 1 is a schematic diagram showing an interference avoidance rule of a Wi-Fi system
  • FIG. 2 is a schematic diagram showing a channel detection mechanism when an LTE system operates in an unlicensed band
  • FIG. 3 is a schematic flow chart of an RRM measurement method when an LTE system applicable to a terminal operates in an unlicensed band according to an embodiment of the present invention
  • FIG. 4 is a schematic block diagram of an RRM measurement system when an LTE system suitable for a terminal operates in an unlicensed band according to an embodiment of the present invention
  • FIG. 5 is a schematic flow chart of an RRM measurement method when an LTE system applicable to a base station operates in an unlicensed band according to an embodiment of the present invention
  • FIG. 6 is a schematic block diagram of an RRM measurement system when an LTE system applicable to a base station operates in an unlicensed band according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • FIG. 8 shows a schematic structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 3 shows a schematic flow chart of an RRM measurement method when an LTE system suitable for a terminal operates in an unlicensed band according to an embodiment of the present invention.
  • an RRM measurement method for an LTE system applicable to a terminal in an unlicensed frequency band includes: Step 302: Receive a downlink signal sent by each base station in at least one base station, and according to The downlink signal determines a busy state of the uplink channel and/or the downlink channel of each base station; and step 304, when the uplink channel and/or the downlink channel of each base station are in a busy state and an idle state, respectively, statistics are performed.
  • step 306 the value of the reference signal received quality when the uplink channel and/or the downlink channel of each base station is in a busy state, and the On each base station The value of the reference signal received quality that is counted when the line channel and/or the downlink channel are in an idle state is reported to the serving base station of the terminal.
  • the busy state of the uplink channel and/or the downlink channel of each base station is determined by the downlink signal transmitted by each base station, respectively. Counting the value of the reference signal reception quality when the uplink channel and/or the downlink channel of each base station are in a busy state and an idle state, so that the reference signal reception quality when the uplink channel and/or the downlink channel of the base station are in different states can be distinguished.
  • the measurement that is, the measurement can be performed separately when the surrounding interference is weak (when the channel is idle) and when the interference is strong (when the channel is busy), thereby ensuring that the serving base station selects a more suitable secondary cell base station or selects a more suitable when switching.
  • Target base station The measurement, that is, the measurement can be performed separately when the surrounding interference is weak (when the channel is idle) and when the interference is strong (when the channel is busy), thereby ensuring that the serving base station selects a more suitable secondary cell base station or selects a more suitable when switching.
  • Target base station can be performed separately when the surrounding interference is weak (when the channel is idle) and when the interference is strong (when the channel is busy), thereby ensuring that the serving base station selects a more suitable secondary cell base station or selects a more suitable when switching.
  • the method further includes: calculating a busy busy ratio of the uplink channel and/or the downlink channel of each base station, and calculating a busy busy ratio of the uplink channel and/or the downlink channel of each base station Reported to the serving base station.
  • the serving base station can determine, according to the idle ratio of the uplink channel and/or the downlink channel of each base station, The service performance of the base stations can, in turn, select a more suitable secondary cell base station or select a more suitable target base station at the time of handover.
  • the method further includes: measuring, when the uplink channel and/or the downlink channel of each base station are in a busy state and/or an idle state, measuring a reference signal received power corresponding to each of the base stations. a value; a value corresponding to the reference signal received power of each of the base stations is reported to the serving base station.
  • the measurement since the value of the reference signal received power is not affected by the surrounding interference signal, the measurement may be performed when the uplink channel and/or the downlink channel are in a busy state, or may be in the uplink channel and/or the downlink channel. Measurement is performed in the idle state.
  • the scheme for determining, by the terminal, the busy channel of the uplink channel and/or the downlink channel of the base station may include:
  • the step of determining the busy state of the uplink channel and/or the downlink channel of each base station according to the downlink signal specifically includes: detecting, sending, by each of the base stations And a period in which the reference signal is sent; when the period of the reference signal sent by any of the at least one base station is greater than or equal to a predetermined period, determining that the uplink channel and/or the downlink channel of the any base station are in a busy state; And determining, when the period of the reference signal sent by any one of the at least one base station is less than the predetermined period, determining that an uplink channel and/or a downlink channel of the any base station are in an idle state.
  • the base station since the base station can set the transmission period of the reference signal after determining the state of the uplink channel and/or the downlink channel, specifically, if the uplink channel and/or the downlink channel of the base station are in a busy state, the reference signal is sent. If the uplink channel and/or the downlink channel of the base station are in an idle state, the period of transmitting the reference signal is small, and the terminal can determine the idle state of the uplink channel and/or the downlink channel according to the period in which the base station sends the reference signal.
  • the step of determining the busy state of the uplink channel and/or the downlink channel of each base station according to the downlink signal specifically includes: sending, by receiving, any one of the at least one base station When the resource reservation signal or the signal indicating that the uplink channel and/or the downlink channel of the any base station is in an idle state, it is determined that the uplink channel and/or the downlink channel of the any base station is in an idle state.
  • the base station can explicitly inform the terminal of the status of its uplink channel and/or downlink channel.
  • the step of determining the busy state of the uplink channel and/or the downlink channel of each base station according to the downlink signal specifically includes:
  • the terminal When receiving an instruction sent by any one of the at least one base station indicating that the micro cell base station is turned off, determining that the uplink channel and/or the downlink channel of the any base station are in a busy state. Specifically, if the terminal receives an instruction sent by any base station to indicate that the micro cell base station is turned off, it may directly determine that the channel of any one of the base stations is in a busy state.
  • FIG. 4 is a schematic block diagram of an RRM measurement system when an LTE system suitable for a terminal operates in an unlicensed band, in accordance with an embodiment of the present invention.
  • the RRM measurement system 400 when the LTE system applicable to the terminal operates in an unlicensed frequency band includes: a receiving unit 402, configured to receive at least one a downlink signal sent by each base station in the base station; a determining unit 404, configured to determine, according to the downlink signal received by the receiving unit 402, a busy state of an uplink channel and/or a downlink channel of each base station;
  • the unit 406 is configured to separately calculate values of reference signal reception quality corresponding to each of the base stations when the uplink channel and/or the downlink channel of each of the base stations are in a busy state and an idle state, and a transmission unit 408, configured to: And comparing the value of the reference signal received quality when the uplink channel and/or the downlink channel of each base station are in a busy state, and the uplink channel and/or the downlink channel of each base station are in an idle state. The value of the reference signal reception quality is reported to the serving base station of the terminal.
  • the busy state of the uplink channel and/or the downlink channel of each base station is determined by the downlink signal transmitted by each base station, respectively. Counting the value of the reference signal reception quality when the uplink channel and/or the downlink channel of each base station are in a busy state and an idle state, so that the reference signal reception quality when the uplink channel and/or the downlink channel of the base station are in different states can be distinguished.
  • the measurement that is, the measurement can be performed separately when the surrounding interference is weak (when the channel is idle) and when the interference is strong (when the channel is busy), thereby ensuring that the serving base station selects a more suitable secondary cell base station or selects a more suitable when switching.
  • Target base station The measurement, that is, the measurement can be performed separately when the surrounding interference is weak (when the channel is idle) and when the interference is strong (when the channel is busy), thereby ensuring that the serving base station selects a more suitable secondary cell base station or selects a more suitable when switching.
  • Target base station can be performed separately when the surrounding interference is weak (when the channel is idle) and when the interference is strong (when the channel is busy), thereby ensuring that the serving base station selects a more suitable secondary cell base station or selects a more suitable when switching.
  • the method further includes: a calculating unit 410, configured to calculate a busy ratio of an uplink channel and/or a downlink channel of each base station; the transmitting unit 408 is further configured to: The idle channel ratio of the uplink channel and/or the downlink channel of the base stations is reported to the serving base station.
  • the serving base station can determine, according to the idle ratio of the uplink channel and/or the downlink channel of each base station, The service performance of the base stations can, in turn, select a more suitable secondary cell base station or select a more suitable target base station at the time of handover.
  • the method further includes: a measuring unit 412, configured to measure, when the uplink channel and/or the downlink channel of each base station are in a busy state and/or an idle state, the measurement corresponding to each of the base stations
  • the reference signal receives the value of the power
  • the transmission unit 408 is further configured to report the value of the reference signal received power corresponding to each of the base stations to the serving base station.
  • the measurement can be performed when the uplink channel and/or the downlink channel are in a busy state, or when the uplink channel and/or the downlink channel are in an idle state.
  • the scheme for determining, by the terminal, the busy channel of the uplink channel and/or the downlink channel of the base station may include:
  • the determining unit 404 includes: a detecting unit 4042, configured to detect a period in which each of the base stations transmits a reference signal; and an executing unit 4044, configured to use any one of the at least one base station Determining, when the period of the reference signal sent is greater than or equal to a predetermined period, determining that the uplink channel and/or the downlink channel of the any base station are in a busy state, and using the reference sent by any one of the at least one base station When the period of the signal is less than the predetermined period, it is determined that the uplink channel and/or the downlink channel of the any base station is in an idle state.
  • the base station since the base station can set the transmission period of the reference signal after determining the state of the uplink channel and/or the downlink channel, specifically, if the uplink channel and/or the downlink channel of the base station are in a busy state, the reference signal is sent. If the uplink channel and/or the downlink channel of the base station are in an idle state, the period of transmitting the reference signal is small, and the terminal can determine the idle state of the uplink channel and/or the downlink channel according to the period in which the base station sends the reference signal.
  • the determining unit 404 is specifically configured to: receive a resource reservation signal sent by any one of the at least one base station or indicate an uplink channel and/or downlink of the any base station. When the channel is in an idle state, it is determined that the uplink channel and/or the downlink channel of any of the base stations are in an idle state.
  • the base station can explicitly inform the terminal of the status of its uplink channel and/or downlink channel.
  • the determining unit 404 is specifically configured to: when receiving an instruction sent by any one of the at least one base station to indicate that the micro cell base station is turned off, determine an uplink channel of the any base station. And/or the downstream channel is busy. Specifically, if the terminal receives an instruction sent by any base station to indicate that the micro cell base station is turned off, it may directly determine that the channel of any one of the base stations is in a busy state.
  • the present invention proposes a terminal (not shown) including: an RRM measurement system 400 when the LTE system suitable for the terminal operates in an unlicensed band as shown in FIG.
  • FIG. 5 shows a schematic flow chart of an RRM measurement method when an LTE system applicable to a base station operates in an unlicensed band according to an embodiment of the present invention.
  • an RRM measurement method for an LTE system applicable to a base station in an unlicensed frequency band includes: Step 502: Receive an uplink channel of each base station in at least one base station reported by a terminal And a value of a reference signal received quality that is calculated when the downlink channel is in a busy state and a value of a reference signal received quality that is calculated when the uplink channel and/or the downlink channel of each base station are in an idle state; step 504, according to The value of the reference signal received quality when the uplink channel and/or the downlink channel of each base station is in a busy state and the reference signal received quality when the uplink channel and/or the downlink channel of each base station are in an idle state are described. The value of the service performance of each of the base stations is determined.
  • the (serving base station of the terminal) since the determination of the reception quality of the reference signal needs to take into consideration the surrounding interference signal, the (serving base station of the terminal) is in the uplink channel and/or the downlink channel of each of the at least one base station reported by the receiving terminal.
  • the value of the reference signal reception quality in the busy state and the idle state can accurately determine the service performance of each base station, thereby ensuring that the serving base station selects a more suitable secondary cell base station or selects a more suitable target base station at the time of handover.
  • the method further includes: receiving an idle ratio of an uplink channel and/or a downlink channel of each of the base stations reported by the terminal, and/or receiving an uplink of the other base station transmitted by another base station.
  • the ratio of idle busy of the channel and/or the downlink channel ; according to the idle busy ratio of the uplink channel and/or the downlink channel of each base station, and/or the busy busy ratio of the uplink channel and/or the downlink channel of the other base station, Determining service performance of each of the base stations and/or the other base stations.
  • the serving base station can determine each of the uplink channel and/or the downlink channel of each base station according to the idle busy ratio of the uplink channel and/or the downlink channel of each base station reported by the terminal.
  • the service performance of the base station can, in turn, select a more suitable secondary cell base station or select a more suitable target base station at the time of handover.
  • the method further includes: determining, according to the service performance of the user, whether the handover to the target base station is required to provide the service to the terminal, and determining that the handover to the target base station is required to provide the service to the terminal, according to Selecting the service performance of the at least one base station a target base station; and/or selecting a target base station as a secondary cell base station according to service performance of the at least one base station.
  • the step of selecting the target base station includes a combination of any one or more of the following: selecting the uplink channel and/or the downlink channel is in a busy state, and the value of the reference signal received quality is the largest.
  • a base station that has the largest value of the reference signal received by the base station as the target base station selects an uplink channel, and/or the downlink channel is in an idle state, and uses the base station as the target base station to select an uplink channel and/or a downlink channel.
  • the base station with the largest busy ratio is used as the target base station.
  • the method further includes: indicating that the terminal measures the value of the reference signal reception quality at the specified time-frequency location.
  • FIG. 6 shows a schematic block diagram of an RRM measurement system when an LTE system for a base station operates in an unlicensed band, in accordance with an embodiment of the present invention.
  • an RRM measurement system 600 when an LTE system is applicable to a base station in an unlicensed frequency band includes: a receiving unit 602, configured to receive each base station in at least one base station reported by the terminal.
  • the unit 604 is configured to: according to the value of the reference signal received quality when the uplink channel and/or the downlink channel of each base station are in a busy state, and when the uplink channel and/or the downlink channel of each base station are in an idle state.
  • the value of the received reference signal reception quality determines the service performance of each of the base stations.
  • the (serving base station of the terminal) since the determination of the reception quality of the reference signal needs to take into consideration the surrounding interference signal, the (serving base station of the terminal) is in the uplink channel and/or the downlink channel of each of the at least one base station reported by the receiving terminal.
  • the value of the reference signal reception quality in the busy state and the idle state can accurately determine the service performance of each base station, thereby ensuring that the serving base station selects a more suitable secondary cell base station or selects a more suitable target base station at the time of handover.
  • the receiving unit 602 is further configured to: receive a busy busy ratio of an uplink channel and/or a downlink channel of each of the base stations reported by the terminal, and/or receive transmission by another base station.
  • the determining unit 604 is further configured to: according to the idle busy ratio of the uplink channel and/or the downlink channel of each base station For example, and/or the idle ratio of the uplink channel and/or the downlink channel of the other base station, the service performance of each of the base stations and/or the other base stations is determined.
  • the serving base station can determine each of the uplink channel and/or the downlink channel of each base station according to the idle busy ratio of the uplink channel and/or the downlink channel of each base station reported by the terminal.
  • the service performance of the base station can, in turn, select a more suitable secondary cell base station or select a more suitable target base station at the time of handover.
  • the method further includes: a determining unit 606, configured to determine, according to the service performance of the base station, whether a handover to the target base station is required to provide a service to the terminal, and a first selecting unit 608, configured to The determining unit 606 determines that the target base station needs to be switched to provide service to the terminal, and selects the target base station according to the service performance of the at least one base station; and/or the second selecting unit 610, according to the at least The service performance of a base station is selected as the target base station of the secondary cell base station.
  • the first selecting unit 608 and/or the second selecting unit 610 are specifically configured to: select the reference signal received when the uplink channel and/or the downlink channel are in a busy state.
  • a base station having the largest value of quality as the target base station; and/or a base station that has the highest value of the reference signal received quality when the uplink channel and/or the downlink channel are in an idle state is selected as the target base station; and/or The base station with the largest free busy ratio of the uplink channel and/or the downlink channel is selected as the target base station.
  • the method further includes: a notification unit 612, configured to instruct the terminal to measure a value of the reference signal reception quality at a specified time-frequency location.
  • the present invention also proposes a base station (not shown), comprising: an RRM measurement system 600 when the LTE system applicable to the base station operates in an unlicensed frequency band as shown in FIG. 6.
  • the present invention is mainly directed to the problem of RRM measurement after the introduction of the LBT mechanism in the unlicensed band of the LTE system, and proposes that the RSRP and the RSRQ are measured in the downlink subframe of the non-LBT, and the RSRQ needs to separately obtain the measurement statistics according to the LBT detection result.
  • the plan for the average details as follows:
  • the base station Since the base station does not transmit any signal during the downlink LBT detection time, the measurement of RSRP and RSRQ cannot be performed at the LBT detection time, and the measurement of RSRP and RSRQ should be placed in the downlink subframe of the non-LBT detection subframe.
  • the base station can indicate the terminal at a specified time frequency RSRP and RSRQ are measured at the location.
  • RSRQ For example, if the measurement period of RSRQ is 200ms and a value is measured every 10ms, then 20 RSRQ measurements are obtained in one cycle. If the LBT detection is performed every 10 ms, 20 LBT detection results are obtained in one RSRQ measurement period.
  • the corresponding RSR detection result is 0.1*Q; the 5 LBT detection results are idle, and the corresponding RSRQ value is 0.9*Q; the measurement result of cell#2 Among them, 10 LBT detection results are busy, and the corresponding RSRQ value is 0.2*Q; 10 LBT detection results are idle, and the corresponding RSRQ value is 0.6*Q.
  • the measurement results are shown in Table 1:
  • the present invention proposes a mechanism for measuring and reporting RSRQ based on channel busy state separation.
  • the specific method is as follows:
  • sampling of the RSRQ measurement result when the channel is busy is divided into the first group, and the sampling of the RSRQ measurement result of the channel idle time is divided into the second group;
  • the RSRQ value is mainly distinguished according to the busy state of the downlink channel.
  • the RSRQ value may be distinguished according to the busy state of the uplink channel, or the RSRQ may be distinguished according to the busy state of the uplink channel and the downlink channel. value. The following is an example of distinguishing the RSRQ value of the busy state of the downlink channel:
  • the present invention proposes the following scheme:
  • the user equipment can detect the period in which the base station transmits the reference signal to determine whether the channel is busy or idle during the LBT detection period.
  • the base station sends the channel idle identifier or the resource reservation signal when the LBT detects the channel idle
  • the user equipment determines whether the channel is busy or idle in the LBT detection period according to the detected channel idle identifier or the resource reservation signal.
  • the channel idle identifier can be sent immediately after the LBT detection ends, which also facilitates the terminal to save power after detecting the channel is busy, without detecting the PDCCH in the period.
  • the base station sends a Small cell off command through MAC signaling, physical layer signaling, DRX (Discontinuous Reception) configuration, and the like.
  • the method can also enable the user equipment to save energy without monitoring the PDCCH after learning that the channel is busy.
  • the user equipment After the user equipment determines that the channel is in the idle state, the user can distinguish the statistical RSRQ value according to the busy state and report it to the base station. At the same time, the user equipment can also calculate the channel idle ratio according to the busy state after determining the busy state of the channel. Report to the base station.
  • the user equipment may distinguish the statistical RSRQ value from the channel busy state of the serving base station and/or the neighboring base station, and report the value to the serving base station.
  • the neighboring base station can also count its own channel busy and idle ratio, and inform the above-mentioned serving base station through the interface between the base stations.
  • the serving base station may select the RSRQ value and the channel busy and idle ratio respectively according to the busy state reported by the user equipment.
  • Target cell or most suitable Scell In The following criteria can be adopted: the cell with the largest RSRQ at idle time is selected; the cell with the largest channel idle ratio is selected; and the cell with the largest RSRQ at busy time is selected.
  • the foregoing embodiment of the present invention performs differentiated measurement by using the RRM after the LBT mechanism is introduced when the LTE system uses the unlicensed frequency band, so that the user equipment independently samples, averages, and reports the RSRQ of the channel busy time and idle time, and ensures the serving base station.
  • the target base station or adding the Scell according to the RSRQ value of the channel busy and the channel idle, the channel idle ratio of each candidate cell is further combined, and the most suitable target cell or target Scell is selected, thereby improving system throughput and reducing users.
  • the probability of device switching interruption is provided.
  • FIG. 7 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • the terminal may include: at least one input device 703, at least one output device 704, and at least one processing.
  • the 701, such as a CPU, a memory 705, and at least one bus 702, may be combined with the RRM measurement system when the LTE system shown in FIG. 4 operates in an unlicensed band.
  • the bus 702 is used to connect the input device 703, the output device 704, the processor 701, and the memory 705.
  • the input device 703 may specifically be a communication interface of the terminal, such as a network interface, and the network interface may include a standard wired interface or a wireless interface (such as a WI-FI interface), specifically for receiving a downlink signal.
  • a network interface such as a network interface
  • the network interface may include a standard wired interface or a wireless interface (such as a WI-FI interface), specifically for receiving a downlink signal.
  • the output device 704 may specifically be a communication interface of the terminal, such as a network interface, and the network interface may include a standard wired interface or a wireless interface (such as a WI-FI interface), specifically for reporting an uplink channel of each base station and/or a value of a reference signal received quality when the downlink channel is in a busy state and a value of the reference signal received quality when the uplink channel and/or the downlink channel of each base station are in an idle state.
  • a standard wired interface or a wireless interface such as a WI-FI interface
  • the above memory 705 may be a high speed RAM memory or a non-volatile memory such as a disk memory.
  • the above memory 705 is further configured to store a set of program codes, and the processor 701 is configured to call the program code stored in the memory 705 to perform the following operations:
  • the value of the reference signal received quality and the uplink channel and/or the downlink channel of each base station are calculated by the output device 704 when the uplink channel and/or the downlink channel of each base station are in a busy state.
  • the value of the reference signal received quality that is counted in the idle state is reported to the serving base station of the terminal.
  • processor 701 is further configured to perform the following operations:
  • processor 701 is further configured to perform the following operations:
  • a value corresponding to a reference signal received power of each of the base stations is measured when the uplink channel and/or the downlink channel of each of the base stations are in a busy state and/or an idle state.
  • the value of the reference signal received power corresponding to each of the base stations is reported to the serving base station by the output device 704.
  • the determining, by the processor 701, the busy state of the uplink channel and/or the downlink channel of each of the base stations according to the downlink signal specifically:
  • the determining, by the processor 701, the busy state of the uplink channel and/or the downlink channel of each of the base stations according to the downlink signal specifically:
  • Determining an uplink channel of the any of the base stations when receiving a resource reservation signal sent by any one of the at least one base station or a signal indicating that the uplink channel and/or the downlink channel of the any of the base stations are in an idle state / or the downlink channel is idle.
  • the determining, by the processor 701, the busy state of the uplink channel and/or the downlink channel of each of the base stations according to the downlink signal specifically:
  • terminal introduced in the embodiment of the present invention may be used to implement some or all of the processes in the method embodiment introduced by the present invention in conjunction with FIG.
  • FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • the terminal may include: at least one input device 803, at least one processor 801, such as a CPU, The memory 804 and the at least one bus 802, the processor 801 can be combined with the RRM measurement system when the LTE system shown in FIG. 6 operates in an unlicensed band.
  • the bus 802 is used to connect the input device 803, the processor 801, and the memory 804.
  • the input device 803 may specifically be a communication interface of the terminal, such as a network interface, and the network interface may include a standard wired interface or a wireless interface (such as a WI-FI interface), specifically for receiving each of the at least one base station reported by the terminal.
  • a standard wired interface or a wireless interface such as a WI-FI interface
  • the above memory 804 may be a high speed RAM memory or a non-volatile memory such as a disk memory.
  • the memory 804 is further configured to store a set of program codes, and the processor 801 is configured to call the program code stored in the memory 804 to perform the following operations:
  • a value of a reference signal received quality that is calculated when an uplink channel and/or a downlink channel of each base station of the at least one base station reported by the terminal is in a busy state, and an uplink channel and/or an uplink channel of each of the base stations.
  • the value of the received quality of the reference signal that is counted when the downlink channel is in the idle state.
  • processor 801 is further configured to perform the following operations:
  • Determining each of the base stations and/or the idle channel ratio of the uplink channel and/or the downlink channel of each of the base stations, and/or the idle channel ratio of the uplink channel and/or the downlink channel of the other base station Service performance of other base stations.
  • processor 801 is further configured to perform the following operations:
  • the processor 801 selects the target base station, and specifically includes any one or more of the following combinations:
  • the base station having the highest value of the reference signal received quality as the target base station selecting the uplink channel, and/or the downlink channel is in an idle state
  • the base station having the largest value of the signal reception quality serves as the target base station as the target base station, and the base station having the largest idle ratio of the selected uplink channel and/or the downlink channel.
  • processor 801 is further configured to:
  • the terminal introduced in the embodiment of the present invention may be used to implement some or all of the processes in the method embodiment introduced by the present invention in conjunction with FIG. 5.
  • the present invention provides a new RRM measurement scheme for an LTE system operating in an unlicensed frequency band, which can separately measure the reference signal received power for the channel state of the base station, thereby enabling the terminal.
  • the serving base station can accurately determine the service performance of the neighboring base station to select a more suitable secondary cell base station or select a more suitable target base station at the time of handover.

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Abstract

本发明提供了一种LTE***在非授权频段工作时的RRM测量方法及***、终端和基站，RRM测量方法包括：接收至少一个基站中每个基站发送的下行信号，以确定每个基站的上行信道和/或下行信道的忙闲状态；在每个基站的上行信道和/或下行信道处于繁忙状态和空闲状态时，分别统计对应于每个基站的RSRQ；将每个基站的上行信道和/或下行信道处于繁忙状态时统计出的RSRQ和每个基站的上行信道和/或下行信道处于空闲状态时统计出的RSRQ上报至终端的服务基站。本发明可以针对基站的信道状态分别测量参考信号接收功率的值和参考信号接收功率，使得终端的服务基站可以准确确定邻基站的服务性能，以选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。

Description

RRM测量方法及测量***、终端和基站
本申请要求于2014年12月19日提交中国专利局，申请号为CN 201410805888.6、发明名称为“RRM测量方法及测量***、终端和基站”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，具体而言，涉及一种LTE***在非授权频段工作时的RRM测量方法、一种LTE***在非授权频段工作时的RRM测量***、一种终端和一种基站。
背景技术
随着通信业务量的急剧增加，3GPP的授权频谱越来越不足以提供更高的网络容量。为了进一步提高频谱资源的利用率，3GPP正讨论如何在授权频谱的帮助下使用未授权频谱，如2.4GHz和5GHz频段。这些未授权频谱目前主要是Wi-Fi、蓝牙、雷达、医疗等***在使用。
通常情况下，为已授权频段设计的接入技术，如LTE(Long Term Evolution，长期演进)不适合在未授权频段上使用，因为LTE这类接入技术对频谱效率和用户体验优化的要求非常高。然而，载波聚合(Carrier Aggregation，CA)功能让将LTE部署于非授权频段变为可能。3GPP提出了LAA(LTE Assisted Access，LTE辅助接入)的概念，借助LTE授权频谱的帮助来使用未授权频谱。而未授权频谱可以有两种工作方式，一种是补充下行(SDL，Supplemental Downlink)，即只有下行传输子帧；另一种是TDD模式，既包含下行子帧、也包含上行子帧。补充下行这种情况只能是借助载波聚合技术使用。而TDD模式除了可以借助载波聚合技术使用外，还可以借助DC(Dual Connectivity，双连通)使用，也可以独立使用。
相比于Wi-Fi***，工作在未授权频段的LTE***有能力提供更高的频谱效率和更大的覆盖效果，同时基于同一个核心网让数据流量在授权频 段和未授权频段之间无缝切换。对用户来说，这意味着更好的宽带体验、更高的速率、更好的稳定性和移动便利。
现有的在非授权频谱上使用的接入技术，如Wi-Fi，具有较弱的抗干扰能力。为了避免干扰，Wi-Fi***设计了很多干扰避免规则，如CSMA/CD(Carrier Sense Multiple Access/Collision Detection，载波监听多路访问/冲突检测方法)，这种方法的基本原理是Wi-Fi的AP(Access Point，接入点)或者终端在发送信令或者数据之前，要先监听检测周围是否有其他AP或者其他终端在发送/接收信令或数据，若有，则继续监听，直到监听到没有为止；若没有，则生成一个随机数作为退避时间，在这个退避时间内，如果没检测到有信令或数据传输，那么在退避时间结束之后，AP或终端可以开始发送信令或数据。该过程如图1所示。
但是，LTE网络中由于有很好的正交性保证了干扰水平，所以基站与用户的上下行传输不用考虑周围是否有其他基站或其他用户在传输数据。如果LTE在非授权频段上使用时也不考虑周围是否有其他设备在使用非授权频段，那么将对Wi-Fi设备带来极大的干扰。因为LTE只要有业务就进行传输，没有任何监听规则，那么Wi-Fi设备在LTE有业务传输时就不能传输，只能等到LTE业务传输完成，才能检测到信道空闲状态以进行数据传输。
可见，LTE网络在使用非授权频段时，最主要的关键点之一是确保LAA能够在公平友好的基础上和现有的接入技术(比如Wi-Fi)共存。为了与Wi-Fi更好的共存，相关技术中提出了一种LTE***在非授权频段工作时的LBT(Listen Before Talk，先听后说)机制。
具体地，如图2所示，假设LBT检测的重复周期为10ms且LBT占用时长为1ms，即一个子帧，若图2中所示的第一个LBT周期内检测到信道空闲，则说明周围的干扰较小，那么在这个周期内其他的子帧可以被占用；若第二个LBT周期内检测到信道忙，则说明周围干扰很大，那么在这个周期内其他的子帧不能被占用。
在这种情况下，RRM(Radio Resource Management，无线资源管理)测量，比如RSRP(Reference Signal Receiving Power，参考信号接收功率) 和RSRQ(Reference Signal Receiving Quality，参考信号接收质量)该如何进行测量是亟待解决的技术问题。
发明内容
本发明正是基于上述技术问题至少之一，提出了一种新的LTE***在非授权频段工作时的RRM测量方案，可以针对基站的信道状态分别测量参考信号接收功率的值和参考信号接收功率，进而使得终端的服务基站可以准确确定邻基站的服务性能，以选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。
有鉴于此，根据本发明的第一方面，提出了一种适用于终端的LTE***在非授权频段工作时的RRM测量方法，包括：接收至少一个基站中每个基站发送的下行信号，并根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态；在所述每个基站的上行信道和/或下行信道处于繁忙状态和空闲状态时，分别统计对应于所述每个基站的参考信号接收质量的值；将所述每个基站的上行信道和/或下行信道处于繁忙状态时统计出的所述参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值上报至所述终端的服务基站。
在该技术方案中，由于参考信号接收质量的确定需要考虑到周围的干扰信号，因此通过根据每个基站发送的下行信号确定每个基站的上行信道和/或下行信道的忙闲状态，以分别统计每个基站的上行信道和/或下行信道在处于繁忙状态和空闲状态时参考信号接收质量的值，使得能够对基站的上行信道和/或下行信道处于不同状态时的参考信号接收质量进行区分测量，即能够在周围的干扰较弱(信道空闲时)和干扰较强(信道繁忙时)时分别进行测量，进而能够确保服务基站选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。
在上述技术方案中，优选地，还包括：计算所述每个基站的上行信道和/或下行信道的闲忙比例，并将所述每个基站的上行信道和/或下行信道的闲忙比例上报至所述服务基站。
在该技术方案中，通过将每个基站的上行信道和/或下行信道的闲忙比例上报至服务基站，使得服务基站能够根据每个基站的上行信道和/或下行信道的闲忙比例确定每个基站的服务性能，进而能够选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。
在上述技术方案中，优选地，还包括：在所述每个基站的上行信道和/或下行信道处于繁忙状态和/或空闲状态时，测量对应于所述每个基站的参考信号接收功率的值；将对应于所述每个基站的参考信号接收功率的值上报至所述服务基站。
在该技术方案中，由于参考信号接收功率的值不受周围干扰信号的影响，因此既可以在上行信道和/或下行信道处于繁忙状态时进行测量，也可以在上行信道和/或下行信道处于空闲状态时进行测量。
其中，终端确定基站的上行信道和/或下行信道的忙闲状态的方案可以包括：
方案一：
在上述技术方案中，优选地，根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态的步骤具体包括：检测所述每个基站发送参考信号的周期；在所述至少一个基站中任一基站发送的所述参考信号的周期大于或等于预定周期时，确定所述任一基站的上行信道和/或下行信道处于繁忙状态；以及在所述至少一个基站中任一基站发送的所述参考信号的周期小于所述预定周期时，确定所述任一基站的上行信道和/或下行信道处于空闲状态。
在该技术方案中，由于基站可以在确定上行信道和/或下行信道的状态后设置参考信号的发送周期，具体地，若基站的上行信道和/或下行信道处于繁忙状态，则发送参考信号的周期较大；若基站的上行信道和/或下行信道处于空闲状态，则发送参考信号的周期较小，进而终端可以根据基站发送参考信号的周期确定上行信道和/或下行信道的闲忙状态。
方案二：
在上述技术方案中，优选地，根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态的步骤具体包括：在接收到所述至少一 个基站中任一基站发送的资源预留信号或指示所述任一基站的上行信道和/或下行信道处于空闲状态的信号时，确定所述任一基站的上行信道和/或下行信道处于空闲状态。
在该技术方案中，基站可以显式通知终端其上行信道和/或下行信道的状态。
方案三：
在上述技术方案中，优选地，根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态的步骤具体包括：
在接收到所述至少一个基站中任一基站发送的指示微小区基站关闭的指令时，确定所述任一基站的上行信道和/或下行信道处于繁忙状态。具体地，若终端接收到任一基站发送的指示微小区基站关闭的指令，则可以直接确定该任一基站的信道处于繁忙状态。
根据本发明的第二方面，提出了一种适用于基站的LTE***在非授权频段工作时的RRM测量方法，包括：接收终端上报的至少一个基站中每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值；根据所述每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值，确定所述每个基站的服务性能。
在该技术方案中，由于参考信号接收质量的确定需要考虑到周围的干扰信号，因此(终端的服务基站)通过接收终端上报的至少一个基站中每个基站的上行信道和/或下行信道在处于繁忙状态和空闲状态时参考信号接收质量的值，可以准确确定每个基站的服务性能，进而能够确保服务基站选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。
在上述技术方案中，优选地，还包括：接收所述终端上报的所述每个基站的上行信道和/或下行信道的闲忙比例，和/或接收其他基站传输的所述其他基站的上行信道和/或下行信道的闲忙比例；根据所述每个基站的上行信道和/或下行信道的闲忙比例，和/或所述其他基站的上行信道和/或下行 信道的闲忙比例，确定所述每个基站和/或所述其他基站的服务性能。
在该技术方案中，通过接收终端上报的每个基站的上行信道和/或下行信道的闲忙比例，使得服务基站能够根据每个基站的上行信道和/或下行信道的闲忙比例确定每个基站的服务性能，进而能够选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。
在上述技术方案中，优选地，还包括：根据自身的服务性能确定是否需要切换至目标基站向所述终端提供服务，并在确定需要切换至所述目标基站向所述终端提供服务时，根据所述至少一个基站的服务性能选择所述目标基站；和/或根据所述至少一个基站的服务性能选择作为辅小区基站的目标基站。
在上述技术方案中，优选地，选择所述目标基站的步骤包括以下任一或多个的组合：选择上行信道和/或下行信道处于繁忙状态时统计出的所述参考信号接收质量的值最大的基站作为所述目标基站、选择上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值最大的基站作为所述目标基站、选择上行信道和/或下行信道的闲忙比例最大的基站作为所述目标基站。
在上述技术方案中，优选地，还包括：指示所述终端在指定的时频位置处测量所述参考信号接收质量的值。
根据本发明的第三方面，还提出了一种适用于终端的LTE***在非授权频段工作时的RRM测量***，包括：接收单元，用于接收至少一个基站中每个基站发送的下行信号；确定单元，用于根据所述接收单元接收到的所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态；统计单元，用于在所述每个基站的上行信道和/或下行信道处于繁忙状态和空闲状态时，分别统计对应于所述每个基站的参考信号接收质量的值；传输单元，用于将所述每个基站的上行信道和/或下行信道处于繁忙状态时统计出的所述参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值上报至所述终端的服务基站。
在该技术方案中，由于参考信号接收质量的确定需要考虑到周围的干 扰信号，因此通过根据每个基站发送的下行信号确定每个基站的上行信道和/或下行信道的忙闲状态，以分别统计每个基站的上行信道和/或下行信道在处于繁忙状态和空闲状态时参考信号接收质量的值，使得能够对基站的上行信道和/或下行信道处于不同状态时的参考信号接收质量进行区分测量，即能够在周围的干扰较弱(信道空闲时)和干扰较强(信道繁忙时)时分别进行测量，进而能够确保服务基站选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。
在上述技术方案中，优选地，还包括：计算单元，用于计算所述每个基站的上行信道和/或下行信道的闲忙比例；所述传输单元还用于，将所述每个基站的上行信道和/或下行信道的闲忙比例上报至所述服务基站。
在该技术方案中，通过将每个基站的上行信道和/或下行信道的闲忙比例上报至服务基站，使得服务基站能够根据每个基站的上行信道和/或下行信道的闲忙比例确定每个基站的服务性能，进而能够选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。
在上述技术方案中，优选地，还包括：测量单元，用于在所述每个基站的上行信道和/或下行信道处于繁忙状态和/或空闲状态时，测量对应于所述每个基站的参考信号接收功率的值；所述传输单元还用于，将对应于所述每个基站的参考信号接收功率的值上报至所述服务基站。
在该技术方案中，由于参考信号接收功率的值不受周围干扰信号的影响，因此既可以在上行信道和/或下行信道处于繁忙状态时进行测量，也可以在上行信道和/或下行信道处于空闲状态时进行测量。
其中，终端确定基站的上行信道和/或下行信道的忙闲状态的方案可以包括：
方案一：
在上述技术方案中，优选地，所述确定单元包括：检测单元，用于检测所述每个基站发送参考信号的周期；执行单元，用于在所述至少一个基站中任一基站发送的所述参考信号的周期大于或等于预定周期时，确定所述任一基站的上行信道和/或下行信道处于繁忙状态，并用于在所述至少一个基站中任一基站发送的所述参考信号的周期小于所述预定周期时，确定 所述任一基站的上行信道和/或下行信道处于空闲状态。
在该技术方案中，由于基站可以在确定上行信道和/或下行信道的状态后设置参考信号的发送周期，具体地，若基站的上行信道和/或下行信道处于繁忙状态，则发送参考信号的周期较大；若基站的上行信道和/或下行信道处于空闲状态，则发送参考信号的周期较小，进而终端可以根据基站发送参考信号的周期确定上行信道和/或下行信道的闲忙状态。
方案二：
在上述技术方案中，优选地，所述确定单元具体用于：在接收到所述至少一个基站中任一基站发送的资源预留信号或指示所述任一基站的上行信道和/或下行信道处于空闲状态的信号时，确定所述任一基站的上行信道和/或下行信道处于空闲状态。
在该技术方案中，基站可以显式通知终端其上行信道和/或下行信道的状态。
方案三：
在上述技术方案中，优选地，所述确定单元具体用于：在接收到所述至少一个基站中任一基站发送的指示微小区基站关闭的指令时，确定所述任一基站的上行信道和/或下行信道处于繁忙状态。具体地，若终端接收到任一基站发送的指示微小区基站关闭的指令，则可以直接确定该任一基站的信道处于繁忙状态。
根据本发明的第四方面，提出了一种终端，所述终端包括通信总线、输入装置、输出装置、存储器以及处理器，其中：
所述通信总线，用于实现所述输入装置、输出装置、存储器以及处理器之间的连接通信；
所述输入装置，用于接收下行信号；
所述输出装置，用于上报每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值；
所述存储器中存储一组程序代码，且处理器调用存储器中存储的程序代码，用于执行以下操作：
通过所述输入装置接收至少一个基站中每个基站发送的下行信号，并根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态；
在所述每个基站的上行信道和/或下行信道处于繁忙状态和空闲状态时，分别统计对应于所述每个基站的参考信号接收质量的值；
通过所述输出装置将所述每个基站的上行信道和/或下行信道处于繁忙状态时统计出的所述参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值上报至所述终端的服务基站。
在上述技术方案中，优选地，所述处理器还用于执行以下操作：
计算所述每个基站的上行信道和/或下行信道的闲忙比例，并通过所述输出装置将所述每个基站的上行信道和/或下行信道的闲忙比例上报至所述服务基站。
在上述技术方案中，优选地，所述处理器还用于执行以下操作：
在所述每个基站的上行信道和/或下行信道处于繁忙状态和/或空闲状态时，测量对应于所述每个基站的参考信号接收功率的值；
通过所述输出装置将对应于所述每个基站的参考信号接收功率的值上报至所述服务基站。
在上述技术方案中，优选地，所述处理器根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态，具体包括：
检测所述每个基站发送参考信号的周期；
在所述至少一个基站中任一基站发送的所述参考信号的周期大于或等于预定周期时，确定所述任一基站的上行信道和/或下行信道处于繁忙状态；以及
在所述至少一个基站中任一基站发送的所述参考信号的周期小于所述预定周期时，确定所述任一基站的上行信道和/或下行信道处于空闲状态。
在上述技术方案中，优选地，所述处理器根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态，具体包括：
在接收到所述至少一个基站中任一基站发送的资源预留信号或指示所 述任一基站的上行信道和/或下行信道处于空闲状态的信号时，确定所述任一基站的上行信道和/或下行信道处于空闲状态。
在上述技术方案中，优选地，所述处理器根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态，具体包括：
在接收到所述至少一个基站中任一基站发送的指示微小区基站关闭的指令时，确定所述任一基站的上行信道和/或下行信道处于繁忙状态。
根据本发明的第五方面，提出了一种适用于基站的LTE***在非授权频段工作时的RRM测量***，包括：接收单元，用于接收终端上报的至少一个基站中每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值；确定单元，用于根据所述每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值，确定所述每个基站的服务性能。
在该技术方案中，由于参考信号接收质量的确定需要考虑到周围的干扰信号，因此(终端的服务基站)通过接收终端上报的至少一个基站中每个基站的上行信道和/或下行信道在处于繁忙状态和空闲状态时参考信号接收质量的值，可以准确确定每个基站的服务性能，进而能够确保服务基站选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。
在上述技术方案中，优选地，所述接收单元还用于，接收所述终端上报的所述每个基站的上行信道和/或下行信道的闲忙比例，和/或接收其他基站传输的所述其他基站的上行信道和/或下行信道的闲忙比例；所述确定单元还用于，根据所述每个基站的上行信道和/或下行信道的闲忙比例，和/或所述其他基站的上行信道和/或下行信道的闲忙比例，确定所述每个基站和/或所述其他基站的服务性能。
在该技术方案中，通过接收终端上报的每个基站的上行信道和/或下行信道的闲忙比例，使得服务基站能够根据每个基站的上行信道和/或下行信道的闲忙比例确定每个基站的服务性能，进而能够选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。
在上述技术方案中，优选地，还包括：判断单元，用于根据所述基站自身的服务性能判断是否需要切换至目标基站向所述终端提供服务；第一选择单元，用于在所述判断单元判定需要切换至所述目标基站向所述终端提供服务时，根据所述至少一个基站的服务性能选择所述目标基站；和/或第二选择单元，用于根据所述至少一个基站的服务性能选择作为辅小区基站的目标基站。
在上述技术方案中，优选地，所述第一选择单元和/或所述第二选择单元具体用于：选择上行信道和/或下行信道处于繁忙状态时统计出的所述参考信号接收质量的值最大的基站作为所述目标基站；和/或选择上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值最大的基站作为所述目标基站；和/或选择上行信道和/或下行信道的闲忙比例最大的基站作为所述目标基站。
在上述技术方案中，优选地，还包括：通知单元，用于指示所述终端在指定的时频位置处测量所述参考信号接收质量的值。
根据本发明的第六方面，还提出了一种基站，所述基站包括通信总线、输入装置、存储器以及处理器，其中：
所述通信总线，用于实现所述输入装置、存储器以及处理器之间的连接通信；
所述输入装置，用于接收终端上报的至少一个基站中每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值；
所述存储器中存储一组程序代码，且处理器调用存储器中存储的程序代码，用于执行以下操作：
通过所述输入装置接收终端上报的至少一个基站中每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值；
根据所述每个基站的上行信道和/或下行信道处于繁忙状态时统计出 的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值，确定所述每个基站的服务性能。
在上述技术方案中，优选地，所述处理器还用于执行以下操作：
通过所述输入装置接收所述终端上报的所述每个基站的上行信道和/或下行信道的闲忙比例，和/或接收其他基站传输的所述其他基站的上行信道和/或下行信道的闲忙比例；
根据所述每个基站的上行信道和/或下行信道的闲忙比例，和/或所述其他基站的上行信道和/或下行信道的闲忙比例，确定所述每个基站和/或所述其他基站的服务性能。
在上述技术方案中，优选地，所述处理器还用于执行以下操作：
根据自身的服务性能确定是否需要切换至目标基站向所述终端提供服务，并在确定需要切换至所述目标基站向所述终端提供服务时，根据所述至少一个基站的服务性能选择所述目标基站；和/或
根据所述至少一个基站的服务性能选择作为辅小区基站的目标基站。
在上述技术方案中，优选地，所述处理器选择所述目标基站，具体包括以下任一或多个的组合：
选择上行信道和/或下行信道处于繁忙状态时统计出的所述参考信号接收质量的值最大的基站作为所述目标基站、选择上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值最大的基站作为所述目标基站、选择上行信道和/或下行信道的闲忙比例最大的基站作为所述目标基站。
在上述技术方案中，优选地，所述处理器还用于执行以下操作：
指示所述终端在指定的时频位置处测量所述参考信号接收质量的值。
通过以上技术方案，可以针对基站的信道状态分别测量参考信号接收功率，进而使得终端的服务基站可以准确确定邻基站的服务性能，以选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。
附图说明
图1示出了Wi-Fi***的干扰避免规则的示意图；
图2示出了LTE***在非授权频段工作时的信道检测机制的示意图；
图3示出了根据本发明的实施例的适用于终端的LTE***在非授权频段工作时的RRM测量方法的示意流程图；
图4示出了根据本发明的实施例的适用于终端的LTE***在非授权频段工作时的RRM测量***的示意框图；
图5示出了根据本发明的实施例的适用于基站的LTE***在非授权频段工作时的RRM测量方法的示意流程图；
图6示出了根据本发明的实施例的适用于基站的LTE***在非授权频段工作时的RRM测量***的示意框图；
图7示出了根据本发明的实施例的终端的结构示意图；
图8示出了根据本发明的实施例的基站的结构示意图。
具体实施方式
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述的其他方式来实施，因此，本发明的保护范围并不受下面公开的具体实施例的限制。
图3示出了根据本发明的实施例的适用于终端的LTE***在非授权频段工作时的RRM测量方法的示意流程图。
如图3所示，根据本发明的实施例的适用于终端的LTE***在非授权频段工作时的RRM测量方法，包括：步骤302，接收至少一个基站中每个基站发送的下行信号，并根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态；步骤304，在所述每个基站的上行信道和/或下行信道处于繁忙状态和空闲状态时，分别统计对应于所述每个基站的参考信号接收质量的值；步骤306，将所述每个基站的上行信道和/或下行信道处于繁忙状态时统计出的所述参考信号接收质量的值和所述每个基站的上 行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值上报至所述终端的服务基站。
在该技术方案中，由于参考信号接收质量的确定需要考虑到周围的干扰信号，因此通过根据每个基站发送的下行信号确定每个基站的上行信道和/或下行信道的忙闲状态，以分别统计每个基站的上行信道和/或下行信道在处于繁忙状态和空闲状态时参考信号接收质量的值，使得能够对基站的上行信道和/或下行信道处于不同状态时的参考信号接收质量进行区分测量，即能够在周围的干扰较弱(信道空闲时)和干扰较强(信道繁忙时)时分别进行测量，进而能够确保服务基站选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。
在上述技术方案中，优选地，还包括：计算所述每个基站的上行信道和/或下行信道的闲忙比例，并将所述每个基站的上行信道和/或下行信道的闲忙比例上报至所述服务基站。
在该技术方案中，通过将每个基站的上行信道和/或下行信道的闲忙比例上报至服务基站，使得服务基站能够根据每个基站的上行信道和/或下行信道的闲忙比例确定每个基站的服务性能，进而能够选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。
在上述技术方案中，优选地，还包括：在所述每个基站的上行信道和/或下行信道处于繁忙状态和/或空闲状态时，测量对应于所述每个基站的参考信号接收功率的值；将对应于所述每个基站的参考信号接收功率的值上报至所述服务基站。
在该技术方案中，由于参考信号接收功率的值不受周围干扰信号的影响，因此既可以在上行信道和/或下行信道处于繁忙状态时进行测量，也可以在上行信道和/或下行信道处于空闲状态时进行测量。
其中，终端确定基站的上行信道和/或下行信道的忙闲状态的方案可以包括：
方案一：
在上述技术方案中，优选地，根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态的步骤具体包括：检测所述每个基站发 送参考信号的周期；在所述至少一个基站中任一基站发送的所述参考信号的周期大于或等于预定周期时，确定所述任一基站的上行信道和/或下行信道处于繁忙状态；以及在所述至少一个基站中任一基站发送的所述参考信号的周期小于所述预定周期时，确定所述任一基站的上行信道和/或下行信道处于空闲状态。
在该技术方案中，由于基站可以在确定上行信道和/或下行信道的状态后设置参考信号的发送周期，具体地，若基站的上行信道和/或下行信道处于繁忙状态，则发送参考信号的周期较大；若基站的上行信道和/或下行信道处于空闲状态，则发送参考信号的周期较小，进而终端可以根据基站发送参考信号的周期确定上行信道和/或下行信道的闲忙状态。
方案二：
在上述技术方案中，优选地，根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态的步骤具体包括：在接收到所述至少一个基站中任一基站发送的资源预留信号或指示所述任一基站的上行信道和/或下行信道处于空闲状态的信号时，确定所述任一基站的上行信道和/或下行信道处于空闲状态。
在该技术方案中，基站可以显式通知终端其上行信道和/或下行信道的状态。
方案三：
在上述技术方案中，优选地，根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态的步骤具体包括：
在接收到所述至少一个基站中任一基站发送的指示微小区基站关闭的指令时，确定所述任一基站的上行信道和/或下行信道处于繁忙状态。具体地，若终端接收到任一基站发送的指示微小区基站关闭的指令，则可以直接确定该任一基站的信道处于繁忙状态。
图4示出了根据本发明的实施例的适用于终端的LTE***在非授权频段工作时的RRM测量***的示意框图。
如图4所示，根据本发明的实施例的适用于终端的LTE***在非授权频段工作时的RRM测量***400，包括：接收单元402，用于接收至少一 个基站中每个基站发送的下行信号；确定单元404，用于根据所述接收单元402接收到的所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态；统计单元406，用于在所述每个基站的上行信道和/或下行信道处于繁忙状态和空闲状态时，分别统计对应于所述每个基站的参考信号接收质量的值；传输单元408，用于将所述每个基站的上行信道和/或下行信道处于繁忙状态时统计出的所述参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值上报至所述终端的服务基站。
在该技术方案中，由于参考信号接收质量的确定需要考虑到周围的干扰信号，因此通过根据每个基站发送的下行信号确定每个基站的上行信道和/或下行信道的忙闲状态，以分别统计每个基站的上行信道和/或下行信道在处于繁忙状态和空闲状态时参考信号接收质量的值，使得能够对基站的上行信道和/或下行信道处于不同状态时的参考信号接收质量进行区分测量，即能够在周围的干扰较弱(信道空闲时)和干扰较强(信道繁忙时)时分别进行测量，进而能够确保服务基站选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。
在上述技术方案中，优选地，还包括：计算单元410，用于计算所述每个基站的上行信道和/或下行信道的闲忙比例；所述传输单元408还用于，将所述每个基站的上行信道和/或下行信道的闲忙比例上报至所述服务基站。
在该技术方案中，通过将每个基站的上行信道和/或下行信道的闲忙比例上报至服务基站，使得服务基站能够根据每个基站的上行信道和/或下行信道的闲忙比例确定每个基站的服务性能，进而能够选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。
在上述技术方案中，优选地，还包括：测量单元412，用于在所述每个基站的上行信道和/或下行信道处于繁忙状态和/或空闲状态时，测量对应于所述每个基站的参考信号接收功率的值；所述传输单元408还用于，将对应于所述每个基站的参考信号接收功率的值上报至所述服务基站。
在该技术方案中，由于参考信号接收功率的值不受周围干扰信号的影 响，因此既可以在上行信道和/或下行信道处于繁忙状态时进行测量，也可以在上行信道和/或下行信道处于空闲状态时进行测量。
其中，终端确定基站的上行信道和/或下行信道的忙闲状态的方案可以包括：
方案一：
在上述技术方案中，优选地，所述确定单元404包括：检测单元4042，用于检测所述每个基站发送参考信号的周期；执行单元4044，用于在所述至少一个基站中任一基站发送的所述参考信号的周期大于或等于预定周期时，确定所述任一基站的上行信道和/或下行信道处于繁忙状态，并用于在所述至少一个基站中任一基站发送的所述参考信号的周期小于所述预定周期时，确定所述任一基站的上行信道和/或下行信道处于空闲状态。
在该技术方案中，由于基站可以在确定上行信道和/或下行信道的状态后设置参考信号的发送周期，具体地，若基站的上行信道和/或下行信道处于繁忙状态，则发送参考信号的周期较大；若基站的上行信道和/或下行信道处于空闲状态，则发送参考信号的周期较小，进而终端可以根据基站发送参考信号的周期确定上行信道和/或下行信道的闲忙状态。
方案二：
在上述技术方案中，优选地，所述确定单元404具体用于：在接收到所述至少一个基站中任一基站发送的资源预留信号或指示所述任一基站的上行信道和/或下行信道处于空闲状态的信号时，确定所述任一基站的上行信道和/或下行信道处于空闲状态。
在该技术方案中，基站可以显式通知终端其上行信道和/或下行信道的状态。
方案三：
在上述技术方案中，优选地，所述确定单元404具体用于：在接收到所述至少一个基站中任一基站发送的指示微小区基站关闭的指令时，确定所述任一基站的上行信道和/或下行信道处于繁忙状态。具体地，若终端接收到任一基站发送的指示微小区基站关闭的指令，则可以直接确定该任一基站的信道处于繁忙状态。
本发明提出了一种终端(图中未示出)，包括：如图4中所示的适用于终端的LTE***在非授权频段工作时的RRM测量***400。
图5示出了根据本发明的实施例的适用于基站的LTE***在非授权频段工作时的RRM测量方法的示意流程图。
如图5所示，根据本发明的实施例的适用于基站的LTE***在非授权频段工作时的RRM测量方法，包括：步骤502，接收终端上报的至少一个基站中每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值；步骤504，根据所述每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值，确定所述每个基站的服务性能。
在该技术方案中，由于参考信号接收质量的确定需要考虑到周围的干扰信号，因此(终端的服务基站)通过接收终端上报的至少一个基站中每个基站的上行信道和/或下行信道在处于繁忙状态和空闲状态时参考信号接收质量的值，可以准确确定每个基站的服务性能，进而能够确保服务基站选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。
在上述技术方案中，优选地，还包括：接收所述终端上报的所述每个基站的上行信道和/或下行信道的闲忙比例，和/或接收其他基站传输的所述其他基站的上行信道和/或下行信道的闲忙比例；根据所述每个基站的上行信道和/或下行信道的闲忙比例，和/或所述其他基站的上行信道和/或下行信道的闲忙比例，确定所述每个基站和/或所述其他基站的服务性能。
在该技术方案中，通过接收终端上报的每个基站的上行信道和/或下行信道的闲忙比例，使得服务基站能够根据每个基站的上行信道和/或下行信道的闲忙比例确定每个基站的服务性能，进而能够选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。
在上述技术方案中，优选地，还包括：根据自身的服务性能确定是否需要切换至目标基站向所述终端提供服务，并在确定需要切换至所述目标基站向所述终端提供服务时，根据所述至少一个基站的服务性能选择所述 目标基站；和/或根据所述至少一个基站的服务性能选择作为辅小区基站的目标基站。
在上述技术方案中，优选地，选择所述目标基站的步骤包括以下任一或多个的组合：选择上行信道和/或下行信道处于繁忙状态时统计出的所述参考信号接收质量的值最大的基站作为所述目标基站、选择上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值最大的基站作为所述目标基站、选择上行信道和/或下行信道的闲忙比例最大的基站作为所述目标基站。
在上述技术方案中，优选地，还包括：指示所述终端在指定的时频位置处测量所述参考信号接收质量的值。
图6示出了根据本发明的实施例的适用于基站的LTE***在非授权频段工作时的RRM测量***的示意框图。
如图6所示，根据本发明的实施例的适用于基站的LTE***在非授权频段工作时的RRM测量***600，包括：接收单元602，用于接收终端上报的至少一个基站中每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值；确定单元604，用于根据所述每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值，确定所述每个基站的服务性能。
在该技术方案中，由于参考信号接收质量的确定需要考虑到周围的干扰信号，因此(终端的服务基站)通过接收终端上报的至少一个基站中每个基站的上行信道和/或下行信道在处于繁忙状态和空闲状态时参考信号接收质量的值，可以准确确定每个基站的服务性能，进而能够确保服务基站选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。
在上述技术方案中，优选地，所述接收单元602还用于，接收所述终端上报的所述每个基站的上行信道和/或下行信道的闲忙比例，和/或接收其他基站传输的所述其他基站的上行信道和/或下行信道的闲忙比例；所述确定单元604还用于，根据所述每个基站的上行信道和/或下行信道的闲忙比 例，和/或所述其他基站的上行信道和/或下行信道的闲忙比例，确定所述每个基站和/或所述其他基站的服务性能。
在该技术方案中，通过接收终端上报的每个基站的上行信道和/或下行信道的闲忙比例，使得服务基站能够根据每个基站的上行信道和/或下行信道的闲忙比例确定每个基站的服务性能，进而能够选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。
在上述技术方案中，优选地，还包括：判断单元606，用于根据所述基站自身的服务性能判断是否需要切换至目标基站向所述终端提供服务；第一选择单元608，用于在所述判断单元606判定需要切换至所述目标基站向所述终端提供服务时，根据所述至少一个基站的服务性能选择所述目标基站；和/或第二选择单元610，用于根据所述至少一个基站的服务性能选择作为辅小区基站的目标基站。
在上述技术方案中，优选地，所述第一选择单元608和/或所述第二选择单元610具体用于：选择上行信道和/或下行信道处于繁忙状态时统计出的所述参考信号接收质量的值最大的基站作为所述目标基站；和/或选择上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值最大的基站作为所述目标基站；和/或选择上行信道和/或下行信道的闲忙比例最大的基站作为所述目标基站。
在上述技术方案中，优选地，还包括：通知单元612，用于指示所述终端在指定的时频位置处测量所述参考信号接收质量的值。
本发明还提出了一种基站(图中未示出)，包括：如图6中所示的适用于基站的LTE***在非授权频段工作时的RRM测量***600。
综上所述，本发明主要针对LTE***在非授权频段引入LBT机制之后RRM测量的问题，提出了RSRP和RSRQ在非LBT的下行子帧进行测量，以及RSRQ需要根据LBT检测结果分开获得测量统计平均值的方案。具体如下：
由于在下行LBT检测时间内，基站不发送任何信号，所以RSRP和RSRQ的测量不能在LBT检测时间进行，那么RSRP和RSRQ的测量应该放在非LBT检测子帧的下行子帧。其中，基站可以指示终端在指定的时频 位置处测量RSRP和RSRQ。
因为LBT的检测结果主要是根据周围干扰来判定的，所以RSRP不受LBT检测结果的影响，不需要根据检测结果分开测量统计平均值，而RSRQ牵扯到周围干扰，如果不分开统计会出现的问题如下：
例如：RSRQ的测量周期为200ms，且每10ms测量一个值，则一个周期得到20个RSRQ的测量值。若每10ms进行一次LBT检测，则在一个RSRQ的测量周期内得到20个LBT检测结果。
若cell#1的测量结果中，15个LBT检测结果为忙，相应的RSRQ值为0.1*Q；5个LBT检测结果为闲，相应的RSRQ的值为0.9*Q；cell#2的测量结果中，10个LBT检测结果为忙，相应的RSRQ值为0.2*Q；10个LBT检测结果为闲，相应的RSRQ的值为0.6*Q。测量结果具体如表1所示：
Figure PCTCN2015077986-appb-000001
表1
在表1所示的情况下，若看总的RSRQ，则cell#2的性能比较好。但是如果看空闲状态下的RSRQ，则cell#1的性能比较好。而事实上，信道忙时用户设备根本不能与基站进行交互，只有在信道空闲时才能与基站进行交互。那么，很有必要将信道忙闲的RSRQ区分开来测量统计并上报基站。
因此，本发明提出了基于信道忙闲状态区分开来测量并报告RSRQ的机制。具体方法如下：
1、将信道忙时的RSRQ测量结果抽样分为第一组，将信道闲时的RSRQ测量结果抽样分为第二组；
2、两组结果分别作layer1的平均；
3、两组结果分别作layer3的平均；
4、两组结果分开报告给基站。
由于是终端选基站，所以主要是根据下行信道的忙闲状态来区分RSRQ值，当然也可以根据上行信道的忙闲状态来区分RSRQ值，或根据上行信道和下行信道的忙闲状态来区分RSRQ值。以下以区分下行信道的忙闲状态的RSRQ值为例进行说明：
由于下行信道忙闲状态是由基站的LBT进行检测判定的，为了让用户设备知道这个LBT检测周期信道是忙还是闲，本发明提出了以下方案：
1、根据基站发送参考信号的周期进行确定。具体地，若信道忙，则发送PSS/SSS、CRS、CSI-RS等参考信号的周期比较长；若信道闲，则发送参考信号的周期比较短。因此，用户设备可以检测基站发送参考信号的周期来判断该LBT检测周期内信道是忙还是闲。
2、根据基站发送专门的信号进行确定。具体地，如基站在LBT检测到信道闲时，发送信道空闲标识或资源预留信号，用户设备根据检测到信道空闲标识或资源预留信号来判断该LBT检测周期内信道是忙还是闲。而且这个信道空闲标识可以在LBT检测结束后马上发送，这样也便于终端在发现信道忙后，在该周期内不检测PDCCH而节能。
3、根据基站是否发送Small cell off的指令来确定。具体地，如基站通过MAC信令、物理层信令、DRX(Discontinuous reception，不连续接收)配置等发送Small cell off指令。同样，该方法也能使得用户设备在得知信道忙后，不监测PDCCH而节能。
当用户设备判断出信道忙闲状态后，可以根据忙闲状态区分统计RSRQ值，报告给基站；同时，用户设备也可以在判断出信道忙闲状态后，根据忙闲状态统计出信道空闲比例，报告给基站。
其中，用户设备可以针对服务基站和/或邻基站的信道忙闲状态区分统计RSRQ值，并上报给服务基站。邻基站也可以统计自己的信道忙闲比例，并通过基站之间接口告知上述服务基站。
服务基站在需要切换到目标基站为终端提供服务时，或者服务基站选择最合适的Scell(辅小区基站)时，可以根据用户设备报告的忙闲状态分别统计的RSRQ值以及信道忙闲比例来选择目标小区或最合适的Scell。在 选择时可以采用如下准则：选择闲时RSRQ最大的小区；选择信道空闲比例最大的小区；选择忙时RSRQ最大的小区。
本发明的上述实施例通过对LTE***使用非授权频段时引入LBT机制之后的RRM进行区分测量，使得用户设备对信道忙时和空闲时的RSRQ分开独立采样、平均处理和报告，确保了服务基站在选择目标基站或者添加Scell时能够根据信道忙与信道空闲的RSRQ值，进一步结合每个候选小区的信道空闲比例，选择出最合适的目标小区或目标Scell，提高了***吞吐量，减少了用户设备切换中断的概率。
本发明实施例还提供了一种终端，图7为本发明实施例中终端的结构示意图，如图所示，所述终端可以包括：至少一个输入装置703，至少一个输出装置704，至少一个处理器701，例如CPU，存储器705和至少一个总线702，处理器701可以结合图4所示的LTE***在非授权频段工作时的RRM测量***。
其中，上述总线702用于连接上述输入装置703、输出装置704、处理器701和存储器705。
其中，上述输入装置703具体可为终端的通信接口，例如网络接口，网络接口可以包括标准的有线接口或者无线接口(如WI-FI接口)，具体用于接收下行信号。
其中，上述输出装置704具体可为终端的通信接口，例如网络接口，网络接口可以包括标准的有线接口或者无线接口(如WI-FI接口)，具体用于上报每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值。
上述存储器705可以是高速RAM存储器，也可为非不稳定的存储器(non-volatile memory)，例如磁盘存储器。上述存储器705还用于存储一组程序代码，上述处理器701用于调用存储器705中存储的程序代码，执行如下操作：
通过所述输入装置703接收至少一个基站中每个基站发送的下行信号，并根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙 闲状态。
在所述每个基站的上行信道和/或下行信道处于繁忙状态和空闲状态时，分别统计对应于所述每个基站的参考信号接收质量的值。
通过所述输出装置704将所述每个基站的上行信道和/或下行信道处于繁忙状态时统计出的所述参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值上报至所述终端的服务基站。
在可选实施例中，所述处理器701还用于执行以下操作：
计算所述每个基站的上行信道和/或下行信道的闲忙比例，并通过所述输出装置704将所述每个基站的上行信道和/或下行信道的闲忙比例上报至所述服务基站。
在可选实施例中，所述处理器701还用于执行以下操作：
在所述每个基站的上行信道和/或下行信道处于繁忙状态和/或空闲状态时，测量对应于所述每个基站的参考信号接收功率的值。
通过所述输出装置704将对应于所述每个基站的参考信号接收功率的值上报至所述服务基站。
在可选实施例中，所述处理器701根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态，具体包括：
检测所述每个基站发送参考信号的周期。
在所述至少一个基站中任一基站发送的所述参考信号的周期大于或等于预定周期时，确定所述任一基站的上行信道和/或下行信道处于繁忙状态。以及
在所述至少一个基站中任一基站发送的所述参考信号的周期小于所述预定周期时，确定所述任一基站的上行信道和/或下行信道处于空闲状态。
在可选实施例中，所述处理器701根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态，具体包括：
在接收到所述至少一个基站中任一基站发送的资源预留信号或指示所述任一基站的上行信道和/或下行信道处于空闲状态的信号时，确定所述任一基站的上行信道和/或下行信道处于空闲状态。
在可选实施例中，所述处理器701根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态，具体包括：
在接收到所述至少一个基站中任一基站发送的指示微小区基站关闭的指令时，确定所述任一基站的上行信道和/或下行信道处于繁忙状态。
具体的，本发明实施例中介绍的终端可以用以实施本发明结合图3介绍的方法实施例中的部分或全部流程。
本发明实施例还提供了一种基站，图8为本发明实施例中基站的结构示意图，如图所示，所述终端可以包括：至少一个输入装置803，至少一个处理器801，例如CPU，存储器804和至少一个总线802，处理器801可以结合图6所示的LTE***在非授权频段工作时的RRM测量***。
其中，上述总线802用于连接上述输入装置803、处理器801和存储器804。
其中，上述输入装置803具体可为终端的通信接口，例如网络接口，网络接口可以包括标准的有线接口或者无线接口(如WI-FI接口)，具体用于接收终端上报的至少一个基站中每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值。
上述存储器804可以是高速RAM存储器，也可为非不稳定的存储器(non-volatile memory)，例如磁盘存储器。上述存储器804还用于存储一组程序代码，上述处理器801用于调用存储器804中存储的程序代码，执行如下操作：
通过所述输入装置803接收终端上报的至少一个基站中每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值。
根据所述每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值，确定所述每个基站的服务性能。
在可选实施例中，所述处理器801还用于执行以下操作：
通过所述输入装置接收所述终端上报的所述每个基站的上行信道和/或下行信道的闲忙比例，和/或接收其他基站传输的所述其他基站的上行信道和/或下行信道的闲忙比例。
根据所述每个基站的上行信道和/或下行信道的闲忙比例，和/或所述其他基站的上行信道和/或下行信道的闲忙比例，确定所述每个基站和/或所述其他基站的服务性能。
在可选实施例中，所述处理器801还用于执行以下操作：
根据自身的服务性能确定是否需要切换至目标基站向所述终端提供服务，并在确定需要切换至所述目标基站向所述终端提供服务时，根据所述至少一个基站的服务性能选择所述目标基站。和/或
根据所述至少一个基站的服务性能选择作为辅小区基站的目标基站。
进一步可选的，所述处理器801选择所述目标基站，具体包括以下任一或多个的组合：
选择上行信道和/或下行信道处于繁忙状态时统计出的所述参考信号接收质量的值最大的基站作为所述目标基站、选择上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值最大的基站作为所述目标基站、选择上行信道和/或下行信道的闲忙比例最大的基站作为所述目标基站。
进一步可选的，所述处理器801还用于执行以下操作：
指示所述终端在指定的时频位置处测量所述参考信号接收质量的值。
具体的，本发明实施例中介绍的终端可以用以实施本发明结合图5介绍的方法实施例中的部分或全部流程。
以上结合附图详细说明了本发明的技术方案，本发明提出了一种新的LTE***在非授权频段工作时的RRM测量方案，可以针对基站的信道状态分别测量参考信号接收功率，进而使得终端的服务基站可以准确确定邻基站的服务性能，以选择出更加合适的辅小区基站或在切换时选择出更加合适的目标基站。
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。

Claims (33)

  1. 一种LTE***在非授权频段工作时的RRM测量方法，适用于终端，其特征在于，包括：
    接收至少一个基站中每个基站发送的下行信号，并根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态；
    在所述每个基站的上行信道和/或下行信道处于繁忙状态和空闲状态时，分别统计对应于所述每个基站的参考信号接收质量的值；
    将所述每个基站的上行信道和/或下行信道处于繁忙状态时统计出的所述参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值上报至所述终端的服务基站。
  2. 根据权利要求1所述的LTE***在非授权频段工作时的RRM测量方法，其特征在于，还包括：
    计算所述每个基站的上行信道和/或下行信道的闲忙比例，并将所述每个基站的上行信道和/或下行信道的闲忙比例上报至所述服务基站。
  3. 根据权利要求1所述的LTE***在非授权频段工作时的RRM测量方法，其特征在于，还包括：
    在所述每个基站的上行信道和/或下行信道处于繁忙状态和/或空闲状态时，测量对应于所述每个基站的参考信号接收功率的值；
    将对应于所述每个基站的参考信号接收功率的值上报至所述服务基站。
  4. 根据权利要求1至3中任一项所述的LTE***在非授权频段工作时的RRM测量方法，其特征在于，根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态的步骤具体包括：
    检测所述每个基站发送参考信号的周期；
    在所述至少一个基站中任一基站发送的所述参考信号的周期大于或等于预定周期时，确定所述任一基站的上行信道和/或下行信道处于繁忙状态；以及
    在所述至少一个基站中任一基站发送的所述参考信号的周期小于所述预定周期时，确定所述任一基站的上行信道和/或下行信道处于空闲状态。
  5. 根据权利要求1至3中任一项所述的LTE***在非授权频段工作时的RRM测量方法，其特征在于，根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态的步骤具体包括：
    在接收到所述至少一个基站中任一基站发送的资源预留信号或指示所述任一基站的上行信道和/或下行信道处于空闲状态的信号时，确定所述任一基站的上行信道和/或下行信道处于空闲状态。
  6. 根据权利要求1至3中任一项所述的LTE***在非授权频段工作时的RRM测量方法，其特征在于，根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态的步骤具体包括：
    在接收到所述至少一个基站中任一基站发送的指示微小区基站关闭的指令时，确定所述任一基站的上行信道和/或下行信道处于繁忙状态。
  7. 一种LTE***在非授权频段工作时的RRM测量方法，适用于基站，其特征在于，包括：
    接收终端上报的至少一个基站中每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值；
    根据所述每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值，确定所述每个基站的服务性能。
  8. 根据权利要求7所述LTE***在非授权频段工作时的RRM测量方法，其特征在于，还包括：
    接收所述终端上报的所述每个基站的上行信道和/或下行信道的闲忙比例，和/或接收其他基站传输的所述其他基站的上行信道和/或下行信道的闲忙比例；
    根据所述每个基站的上行信道和/或下行信道的闲忙比例，和/或所述其他基站的上行信道和/或下行信道的闲忙比例，确定所述每个基站和/或所述 其他基站的服务性能。
  9. 根据权利要求7或8所述LTE***在非授权频段工作时的RRM测量方法，其特征在于，还包括：
    根据自身的服务性能确定是否需要切换至目标基站向所述终端提供服务，并在确定需要切换至所述目标基站向所述终端提供服务时，根据所述至少一个基站的服务性能选择所述目标基站；和/或
    根据所述至少一个基站的服务性能选择作为辅小区基站的目标基站。
  10. 根据权利要求9所述的LTE***在非授权频段工作时的RRM测量方法，其特征在于，选择所述目标基站的步骤包括以下任一或多个的组合：
    选择上行信道和/或下行信道处于繁忙状态时统计出的所述参考信号接收质量的值最大的基站作为所述目标基站、选择上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值最大的基站作为所述目标基站、选择上行信道和/或下行信道的闲忙比例最大的基站作为所述目标基站。
  11. 根据权利要求7或8所述LTE***在非授权频段工作时的RRM测量方法，其特征在于，还包括：
    指示所述终端在指定的时频位置处测量所述参考信号接收质量的值。
  12. 一种LTE***在非授权频段工作时的RRM测量***，适用于终端，其特征在于，包括：
    接收单元，用于接收至少一个基站中每个基站发送的下行信号；
    确定单元，用于根据所述接收单元接收到的所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态；
    统计单元，用于在所述每个基站的上行信道和/或下行信道处于繁忙状态和空闲状态时，分别统计对应于所述每个基站的参考信号接收质量的值；
    传输单元，用于将所述每个基站的上行信道和/或下行信道处于繁忙状态时统计出的所述参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值上报至所述终端的服务基站。
  13. 根据权利要求12所述的LTE***在非授权频段工作时的RRM测量***，其特征在于，还包括：计算单元，用于计算所述每个基站的上行信道和/或下行信道的闲忙比例；
    所述传输单元还用于，将所述每个基站的上行信道和/或下行信道的闲忙比例上报至所述服务基站。
  14. 根据权利要求12所述的LTE***在非授权频段工作时的RRM测量***，其特征在于，还包括：测量单元，用于在所述每个基站的上行信道和/或下行信道处于繁忙状态和/或空闲状态时，测量对应于所述每个基站的参考信号接收功率的值；
    所述传输单元还用于，将对应于所述每个基站的参考信号接收功率的值上报至所述服务基站。
  15. 根据权利要求12至14中任一项所述的LTE***在非授权频段工作时的RRM测量***，其特征在于，所述确定单元包括：
    检测单元，用于检测所述每个基站发送参考信号的周期；
    执行单元，用于在所述至少一个基站中任一基站发送的所述参考信号的周期大于或等于预定周期时，确定所述任一基站的上行信道和/或下行信道处于繁忙状态，并用于在所述至少一个基站中任一基站发送的所述参考信号的周期小于所述预定周期时，确定所述任一基站的上行信道和/或下行信道处于空闲状态。
  16. 根据权利要求12至14中任一项所述的LTE***在非授权频段工作时的RRM测量***，其特征在于，所述确定单元具体用于：
    在接收到所述至少一个基站中任一基站发送的资源预留信号或指示所述任一基站的上行信道和/或下行信道处于空闲状态的信号时，确定所述任一基站的上行信道和/或下行信道处于空闲状态。
  17. 根据权利要求12至14中任一项所述的LTE***在非授权频段工作时的RRM测量***，其特征在于，所述确定单元具体用于：
    在接收到所述至少一个基站中任一基站发送的指示微小区基站关闭的指令时，确定所述任一基站的上行信道和/或下行信道处于繁忙状态。
  18. 一种终端，其特征在于，所述终端包括通信总线、输入装置、输出 装置、存储器以及处理器，其中：
    所述通信总线，用于实现所述输入装置、输出装置、存储器以及处理器之间的连接通信；
    所述输入装置，用于接收下行信号；
    所述输出装置，用于上报每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值；
    所述存储器中存储一组程序代码，且处理器调用存储器中存储的程序代码，用于执行以下操作：
    通过所述输入装置接收至少一个基站中每个基站发送的下行信号，并根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态；
    在所述每个基站的上行信道和/或下行信道处于繁忙状态和空闲状态时，分别统计对应于所述每个基站的参考信号接收质量的值；
    通过所述输出装置将所述每个基站的上行信道和/或下行信道处于繁忙状态时统计出的所述参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值上报至所述终端的服务基站。
  19. 根据权利要求18所述的终端，其特征在于，所述处理器还用于执行以下操作：
    计算所述每个基站的上行信道和/或下行信道的闲忙比例，并通过所述输出装置将所述每个基站的上行信道和/或下行信道的闲忙比例上报至所述服务基站。
  20. 根据权利要求18所述的终端，其特征在于，所述处理器还用于执行以下操作：
    在所述每个基站的上行信道和/或下行信道处于繁忙状态和/或空闲状态时，测量对应于所述每个基站的参考信号接收功率的值；
    通过所述输出装置将对应于所述每个基站的参考信号接收功率的值上报至所述服务基站。
  21. 根据权利要求18至20中任一项所述的终端，其特征在于，所述处理器根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态，具体包括：
    检测所述每个基站发送参考信号的周期；
    在所述至少一个基站中任一基站发送的所述参考信号的周期大于或等于预定周期时，确定所述任一基站的上行信道和/或下行信道处于繁忙状态；以及
    在所述至少一个基站中任一基站发送的所述参考信号的周期小于所述预定周期时，确定所述任一基站的上行信道和/或下行信道处于空闲状态。
  22. 根据权利要求18至21中任一项所述的终端，其特征在于，所述处理器根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态，具体包括：
    在接收到所述至少一个基站中任一基站发送的资源预留信号或指示所述任一基站的上行信道和/或下行信道处于空闲状态的信号时，确定所述任一基站的上行信道和/或下行信道处于空闲状态。
  23. 根据权利要求18至21中任一项所述的终端，其特征在于，所述处理器根据所述下行信号确定所述每个基站的上行信道和/或下行信道的忙闲状态，具体包括：
    在接收到所述至少一个基站中任一基站发送的指示微小区基站关闭的指令时，确定所述任一基站的上行信道和/或下行信道处于繁忙状态。
  24. 一种LTE***在非授权频段工作时的RRM测量***，适用于基站，其特征在于，包括：
    接收单元，用于接收终端上报的至少一个基站中每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值；
    确定单元，用于根据所述每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值，确定所述每个 基站的服务性能。
  25. 根据权利要求24所述LTE***在非授权频段工作时的RRM测量***，其特征在于：
    所述接收单元还用于，接收所述终端上报的所述每个基站的上行信道和/或下行信道的闲忙比例，和/或接收其他基站传输的所述其他基站的上行信道和/或下行信道的闲忙比例；
    所述确定单元还用于，根据所述每个基站的上行信道和/或下行信道的闲忙比例，和/或所述其他基站的上行信道和/或下行信道的闲忙比例，确定所述每个基站和/或所述其他基站的服务性能。
  26. 根据权利要求24或25所述LTE***在非授权频段工作时的RRM测量***，其特征在于，还包括：
    判断单元，用于根据所述基站自身的服务性能判断是否需要切换至目标基站向所述终端提供服务；第一选择单元，用于在所述判断单元判定需要切换至所述目标基站向所述终端提供服务时，根据所述至少一个基站的服务性能选择所述目标基站；和/或
    第二选择单元，用于根据所述至少一个基站的服务性能选择作为辅小区基站的目标基站。
  27. 根据权利要求26所述的LTE***在非授权频段工作时的RRM测量***，其特征在于，所述第一选择单元和/或所述第二选择单元具体用于：
    选择上行信道和/或下行信道处于繁忙状态时统计出的所述参考信号接收质量的值最大的基站作为所述目标基站；和/或
    选择上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值最大的基站作为所述目标基站；和/或
    选择上行信道和/或下行信道的闲忙比例最大的基站作为所述目标基站。
  28. 根据权利要求24或25所述LTE***在非授权频段工作时的RRM测量***，其特征在于，还包括：
    通知单元，用于指示所述终端在指定的时频位置处测量所述参考信号接收质量的值。
  29. 一种基站，其特征在于，所述基站包括通信总线、输入装置、存储器以及处理器，其中：
    所述通信总线，用于实现所述输入装置、存储器以及处理器之间的连接通信；
    所述输入装置，用于接收终端上报的至少一个基站中每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值；
    所述存储器中存储一组程序代码，且处理器调用存储器中存储的程序代码，用于执行以下操作：
    通过所述输入装置接收终端上报的至少一个基站中每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值；
    根据所述每个基站的上行信道和/或下行信道处于繁忙状态时统计出的参考信号接收质量的值和所述每个基站的上行信道和/或下行信道处于空闲状态时统计出的参考信号接收质量的值，确定所述每个基站的服务性能。
  30. 根据权利要求29所述基站，其特征在于，所述处理器还用于执行以下操作：
    通过所述输入装置接收所述终端上报的所述每个基站的上行信道和/或下行信道的闲忙比例，和/或接收其他基站传输的所述其他基站的上行信道和/或下行信道的闲忙比例；
    根据所述每个基站的上行信道和/或下行信道的闲忙比例，和/或所述其他基站的上行信道和/或下行信道的闲忙比例，确定所述每个基站和/或所述其他基站的服务性能。
  31. 根据权利要求29或30所述基站，其特征在于，所述处理器还用于执行以下操作：
    根据自身的服务性能确定是否需要切换至目标基站向所述终端提供服 务，并在确定需要切换至所述目标基站向所述终端提供服务时，根据所述至少一个基站的服务性能选择所述目标基站；和/或
    根据所述至少一个基站的服务性能选择作为辅小区基站的目标基站。
  32. 根据权利要求31所述的基站，其特征在于，所述处理器选择所述目标基站，具体包括以下任一或多个的组合：
    选择上行信道和/或下行信道处于繁忙状态时统计出的所述参考信号接收质量的值最大的基站作为所述目标基站、选择上行信道和/或下行信道处于空闲状态时统计出的所述参考信号接收质量的值最大的基站作为所述目标基站、选择上行信道和/或下行信道的闲忙比例最大的基站作为所述目标基站。
  33. 根据权利要求29或30所述基站，其特征在于，所述处理器还用于执行以下操作：
    指示所述终端在指定的时频位置处测量所述参考信号接收质量的值。
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