WO2013170667A1 - 一种频带测量方法、设备与系统 - Google Patents

一种频带测量方法、设备与系统 Download PDF

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Publication number
WO2013170667A1
WO2013170667A1 PCT/CN2013/073397 CN2013073397W WO2013170667A1 WO 2013170667 A1 WO2013170667 A1 WO 2013170667A1 CN 2013073397 W CN2013073397 W CN 2013073397W WO 2013170667 A1 WO2013170667 A1 WO 2013170667A1
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WIPO (PCT)
Prior art keywords
narrowband
cell
current
terminal device
measurement
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PCT/CN2013/073397
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English (en)
French (fr)
Inventor
张向东
时洁
李龠
朱松
Original Assignee
华为技术有限公司
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Publication of WO2013170667A1 publication Critical patent/WO2013170667A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the present invention relates to the field of communications, and in particular, to a frequency band measurement method, device, and system.
  • the Internet of Things is a network that realizes the interconnection of people, things, things and things.
  • LTE Long Term Evolution
  • MTC LTE-based
  • GSM Global System of Mobile communication
  • GPRS General Packet Radio Service
  • the method of reducing the transmission/reception bandwidth supported by the terminal may be that the MTC terminal only supports a small working bandwidth, such as 1.4 ⁇ , 3 ⁇ or 5 ⁇ .
  • the MTC terminal of the LTE in the prior art starts the measurement of the same-frequency cell, the inter-frequency cell, or the different-system cell according to the preset condition, for example, when the currently working frequency band signal quality is worse than a certain threshold, and performs the same according to the measurement result.
  • the reselection or handover of the frequency cell, the inter-frequency cell or the different system cell, wherein the currently working frequency band signal quality is worse than a certain threshold is usually caused by the MTC terminal moving beyond the service range of the current cell.
  • the transmission/reception bandwidth supported by the terminal is reduced, since the terminal operates only in a narrow frequency band, frequency selective fading may occur, and the service quality of the MTC terminal in the current narrowband is poor, and the MTC is triggered.
  • the terminal performs corresponding cell transformation, where the cell transformation includes reselection between cells when the MTC terminal is in an idle state and handover between cells when the MTC terminal is in a connected state, but since the location of the MTC terminal does not change, the transformed cell service Quality may still be better Poor, in order to ensure the quality of service, the MTC terminal will perform repeated useless transformations between cells, resulting in waste of resources.
  • the new narrowband transformed may also have poor quality of service.
  • Embodiments of the present invention provide a frequency band measurement method, device, and system, which can make a narrowband transform between cells more specific, avoid useless conversion between cells, and reduce resource waste. Meanwhile, a narrowband transformed terminal is also enabled. The equipment receives a good quality of service.
  • a frequency band measurement method is provided, which is applied to a communication system, where the communication system includes: two or more cells supporting narrowband communication, each cell including at least two narrowbands having different frequencies, and the bandwidth of the narrowband The system bandwidth is less than or equal to the communication system, and the method specifically includes:
  • the quality of service of the narrowband of the current cell and/or the narrowband of the other cell includes: a reference signal received power RSRP and a reference signal received quality RSRQ, where the other cells are outside the current cell where the terminal device is located a cell supporting narrowband communication; analyzing the measurement result, if the measurement result satisfies a preset narrowband transform condition, transforming the terminal device from the current narrowband to a corresponding one of the current cell or the other cell Narrow band.
  • a frequency band measurement method is provided, which is applied to a communication system, where the communication system includes: two or more cells supporting narrowband communication, each cell including at least two narrowbands having different frequencies, and the bandwidth of the narrowband
  • the system bandwidth is less than or equal to the system bandwidth of the communication system, and the bandwidth of the narrowband is less than or equal to the system bandwidth of the communication system.
  • the method specifically includes: sending measurement parameters to the terminal device, so that the terminal device performs the foregoing according to the measurement parameter.
  • the terminal device is configured.
  • a terminal device which is applied to a communication system, where the communication system includes: two or more cells supporting narrowband communication, each cell including at least two narrowbands having different frequencies, and the narrowband has a bandwidth smaller than And the system bandwidth of the communication system is equal to:
  • a measurement unit configured to measure a narrowband service quality of a narrowband of the current cell and/or another cell, where the quality of service includes: a reference signal received power RSRP and a reference signal received quality RSRQ, where the other cell is located at the terminal device Limited support outside the current cell a cell with communication;
  • the transforming unit is configured to perform intra-cell or inter-cell narrow-band transform on the narrowband where the terminal device is located when the measurement result satisfies a preset narrowband transform condition.
  • a base station for use in a communication system, where the communication system includes: two or more cells supporting narrowband communication, each cell including at least two narrowbands having different frequencies, and the bandwidth of the narrowband is less than or equal to The system bandwidth of the communication system, the base station specifically includes:
  • a second sending unit configured to send the measurement parameter to the terminal device, so that the terminal device configures the terminal device according to the measurement parameter.
  • a communication system includes: two or more cells supporting narrowband communication, each cell including at least two narrowbands having different frequencies, and the bandwidth of the narrowband is less than or equal to The system bandwidth of the communication system, the communication system further comprising:
  • Embodiments of the present invention provide a frequency band measurement method, device, and system, which are applied to a communication system, where the communication system includes: two or more cells supporting narrowband communication, each cell including at least two narrowbands having different frequencies
  • the narrowband bandwidth is less than or equal to the system bandwidth of the communication system
  • the method specifically includes: measuring a narrowband service quality of a narrowband of the current cell and/or other cells, where the quality of the service includes: reference signal received power The RSRP and the reference signal receive quality RSRQ, where the other cell is a cell supporting narrowband communication outside the current cell where the terminal device is located; analyzing the measurement result, if the measurement result satisfies a preset narrowband transformation condition, The terminal device is transformed from the current narrowband to a corresponding narrowband in the current cell or the other cells.
  • the terminal device works in a network system supporting narrowband communication, and the working bandwidth thereof is narrow.
  • the terminal device analyzes the measurement result of the service quality, and when the deepband selective fading needs to switch the narrowband, the situation occurs.
  • selectively performing intra-cell or inter-cell narrow-band transformation without blindly directly performing inter-cell transformation, which can make narrow-band transformation between cells more targeted and avoid
  • the useless transformation of the small interval reduces resource waste; at the same time, the useful narrowband transform in the small interval or the cell also enables the narrowband transformed terminal device to obtain better quality of service.
  • FIG. 1 is a flowchart of a frequency band measurement method according to an embodiment of the present invention
  • FIG. 2 is a flowchart of another method for measuring a frequency band according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of still another method for measuring a frequency band according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of still another method for measuring a frequency band according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of another terminal device according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of still another terminal device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a distribution of a downlink frequency band of a cell in a communication system according to an embodiment of the present invention.
  • An embodiment of the present invention provides a frequency band measurement method, which is applied to a communication system, where the communication system includes: two or more cells supporting narrowband communication, each cell including at least two narrowbands having different frequencies, the narrowband The bandwidth is less than or equal to the system bandwidth of the communication system.
  • the bandwidth of the narrowband may be 5M, 10M, 15M, and 20M.
  • the method specifically includes:
  • the terminal device measures a narrowband service quality of a narrow band of the current cell and/or other cells.
  • the current cell is a small current band where the terminal device stays.
  • the narrowband of the current cell includes all narrowbands in the current cell, and the other cells are cells that support narrowband communication outside the current cell where the terminal equipment is located.
  • the foregoing service quality may also be referred to as a channel quality, and may specifically include: RSRP (Reference Signal Receiving Power) and RSRQ (Reference Signal Receiving Quality).
  • the measurement of the current narrowband quality of service may be continuous, that is, the terminal device is always performing the current narrowband quality of service measurement regardless of whether it is in an idle state or a connected state.
  • the terminal device analyzes the measurement result.
  • the terminal device can analyze the measurement results in different situations according to the state in which it is located, such as the idle state or the connected state, the narrow band range measured, and the like.
  • the preset narrowband transform conditions may be multiple.
  • the narrowband transform condition may include a narrowband reselection or handover condition and a narrowband weight between cells in the current cell when the terminal device is in an idle state or a connected state. Select or switch conditions.
  • the other cell is a cell that supports narrowband communication except the current cell where the terminal device is located.
  • the terminal device works in a network system supporting narrowband communication, and the working bandwidth thereof is relatively narrow.
  • the terminal device analyzes the measurement result of the service quality, when a narrowband selective fading or the like needs to be switched, the narrowband is required to be switched.
  • the useful narrowband transform in the small interval or the cell also enables the narrowband transformed terminal equipment to obtain better quality of service.
  • the terminal device further needs to receive the measurement parameter sent by the base station; and configure the terminal device according to the measurement parameter.
  • the measurement parameters may include: the same cell, that is, other narrowband measurement start parameters of the current cell.
  • the other narrowbands in the embodiment of the present invention are narrowbands other than the current narrowband in the current cell in which the terminal device is located.
  • the measurement parameters may further include: narrowband measurement start parameters of other cells, such as narrowband measurement start parameters of the frequency cell, and narrowband measurement start parameters of the inter-frequency/different system cell.
  • the terminal device can have two working states: an idle state and a connected state, in different working states, the specific steps of the terminal device switching between the narrowband of the current cell and the switching between different cells are different, so
  • the idle state and the connected state are taken as an example for detailed description.
  • the narrowband is transformed into a narrowband reselection, as shown in the figure.
  • the frequency band measurement method includes:
  • the terminal device receives the measurement parameter sent by the base station.
  • the measurement parameter may include other narrowband measurement initiation parameters of the current cell, specifically: a first RSRP threshold and/or a second RSRP threshold, and a first RSRQ threshold, and a measurement start parameter of another cell narrowband, specifically: The RSRP threshold and/or the fourth RSRP threshold, and the second RSRQ threshold, are used to define whether other narrowband measurements of the current cell or other narrowband measurements are needed.
  • the foregoing parameters are correspondingly configured by the base station.
  • the base station may configure only the first RSRP threshold and the first RSRQ threshold, or may simultaneously configure the first RSRP threshold, the second RSRP threshold, and the first RSRQ threshold, but when the second RSRP threshold is used.
  • the first RSRP threshold expires at the time of execution, that is, the terminal device performs specific steps with the second RSRP threshold and the first RSRQ threshold as reference thresholds.
  • the first RSRP threshold and/or the second RSRP threshold, and the first RSRQ threshold may be the same as the intra-frequency cell measurement start parameters S-IntraSearch and/or S-IntraSearchP and S-IntraSearchQ in the prior art.
  • the base station may configure only the third RSRP threshold and the second RSRQ threshold, or may simultaneously configure the third RSRP threshold, the fourth RSRP threshold, and the second RSRQ threshold, but when the second RSRP threshold exists, the first RSRP threshold is The execution time is invalid, that is, the terminal device performs specific steps with the third RSRP threshold and the second RSRQ threshold as reference thresholds.
  • the third RSRP threshold and/or the fourth RSRP threshold, and the second RSRQ threshold may be the same as the non-co-frequency cell measurement start parameters S-NonlntraSearch and/or S-NonlntraSearchP, and S-NonlntraSearchQ in the prior art.
  • the measurement parameter may further include: a current narrowband reselection hysteresis value and other narrowband reselection offset values, so that the terminal device performs narrowband reselection according to the above parameters.
  • the measurement parameter may further include: a reselection time period for indicating a reselection time of different narrow bands; a dwell threshold for indicating a critical time for the terminal device to stay on a narrow band.
  • the terminal device configures the terminal device according to the measurement parameter.
  • the terminal device acquires narrowband information of other cells.
  • the method for the terminal device to obtain the narrowband information of the other cell may be multiple.
  • the terminal device may acquire the narrowband information of the other cell by using the broadcast of the base station to which the current cell belongs.
  • the terminal device may also obtain narrowband information of other cells carried by the PCI by acquiring a Physical Cell Identifier (Physical Cell Identifier).
  • the terminal device measures the quality of service of the narrowband of the current cell and/or other cells.
  • the narrow band of the current cell includes a current narrow band and other narrow bands.
  • the measurement of the quality of service of the current narrowband that the terminal device is in is ongoing.
  • the measurement of other narrowband service quality needs to meet the measurement start conditions of other narrowbands of the current cell.
  • the measurement of narrowbands of other cells also needs to meet the measurement start conditions of narrowbands of other cells.
  • the terminal device may choose not to measure the quality of service of other narrowbands; otherwise, the terminal device shall measure the quality of service of other narrowbands, where the other narrowband is in the current cell in which the terminal device is located, except the current narrowband Narrow band outside.
  • the terminal device may choose not to measure the quality of service of the other narrowband; otherwise, the terminal device shall measure the quality of service of the other narrowband, where the other narrowband is the current cell in which the terminal device is located A narrow band outside the narrow band.
  • the terminal device performs the service quality measurement of the current narrowband and the other narrowband simultaneously when the quality of service reaches other narrowband measurement start conditions.
  • the terminal device may measure the quality of service of the narrowband of the other cell; otherwise, the terminal device shall measure the service quality of the narrowband of the other cell.
  • the other cells are intra-frequency cells having the same priority or lower priority than the current cell, or have lower priority than the current cell. Different system cell.
  • the terminal device may measure the quality of service of the narrowband of the other cell; otherwise, the terminal device shall measure the service quality of the narrowband of the other cell.
  • the other cells are co-frequency cells with the same priority or lower priority than the current cell, or different system cells with lower priority than the current cell.
  • the narrowband measurement starting method of other cells having a higher priority than the current cell may be referred to the prior art, and the present invention is not limited thereto.
  • the third RSRP threshold and/or the fourth RSRP threshold, and the second RSRQ threshold may be compared with the non-co-frequency cell measurement start parameters S-NonlntraSearch and/or S-NonlntraSearchP, and S-NonlntraSearchQ in the prior art. the same.
  • the third RSRP threshold may be less than or equal to the first RSRP threshold
  • the fourth RSRP threshold may be less than or equal to the second RSRP threshold
  • the second RSRQ threshold may be less than or equal to the first RSRQ threshold.
  • the third RSRP threshold is equal to the first RSRP threshold or the fourth RSRP threshold is equal to the second RSRP threshold, and when the second RSRQ threshold is equal to the first RSRQ threshold, in order to reduce the depth selective fading
  • the probability of narrowband between cells can preferentially perform other narrowband service quality measurements in the current cell.
  • the terminal device analyzes the measurement result.
  • the terminal device After completing the measurement of other narrowbands in the current cell, the terminal device analyzes the measurement results as follows:
  • the dwell threshold can be 1 second.
  • the current narrowband RSRP effective value is the sum of the current narrowband RSRP measurement value and the current narrowband reselection hysteresis value, and the other narrowband RSRP effective values are the difference between the other narrowband RSRP measurement values and other narrowband reselection offset values.
  • the current narrowband reselection hysteresis value may be defaulted or zeroed.
  • the current narrowband reselection hysteresis value is set to a value greater than 0, the current narrowband is sorted.
  • the priority level of the time the larger the value, the greater the priority.
  • the re-selection offset value of the other narrowband may be defaulted or zeroed.
  • the re-selection offset value of the other narrowband When the re-selection offset value of the other narrowband is set to a value greater than 0, it indicates the priority level of other narrowbands when sorting, but the value is more Large, the lower the priority.
  • the re-selection offset value of the other narrowband may be a value corresponding to each narrowband of the other narrowbands, or may be uniformly set to all the narrowbands of the other narrowbands. For the sake of simplicity, a uniform re-selection offset value for other narrowbands is usually set.
  • the current narrowband reselection lag value is 5
  • the other narrowband reselection offset values are uniformly set to 3
  • the current narrowband RSRP measurement value is 6
  • the narrowband S in other narrowbands has an RSRP measurement value of 4
  • the rules are sorted according to the rules from large to small, the current narrow-band RSRP RMS value is valid in the narrow-band S RSRP. Value before.
  • the unit in the above calculation can be referred to the prior art, and is not added in this embodiment.
  • the narrowband with the largest RMS effective value of RSRP is used as the narrowband to be reselected; when the narrowest RMS of the RSRP is more than two, the frequency in the narrowband with the largest RMS effective value is different from the frequency of the current narrowband.
  • the narrower band is used as a narrow band to be reselected. Due to the long-term suspension of the terminal equipment on a single narrow band, deep frequency selective fading or deep fading may occur, and in the case of frequency selective fading in the current narrow band, deep fading occurs on a narrow band whose frequency is far from the current narrow band. The probability is relatively low, so a narrow band with a far difference in frequency can be selected as the narrow band to be reselected.
  • the terminal device After the measurement of the narrowband of the other cell is completed, the terminal device performs the following measurement on the measurement result, when the other cell is an inter-frequency or different-system cell with a higher priority or lower priority than the current cell, according to the cell weight Selecting a parameter, determining whether the quality of service of the other cell meets the cell reselection condition.
  • the cell K is any cell in another cell
  • the narrowband n is any narrow band in the cell K
  • Srxlev is the RSRP reselection parameter of cell K
  • Squal is the RSRQ reselection parameter of cell K.
  • Qrxlevmeas n is the RSRP measurement of the narrowband
  • Q qua l meas n is the RSRQ measurement of the narrowband n
  • Qnde Vmln is the minimum received power level preset by the cell K
  • Q rxlevminoffset is the Qndevmir ⁇ reselection offset value
  • ? ⁇ ⁇ is max(P EMAX -Pp wasC i ass ), where ⁇ ⁇ is the maximum uplink transmit power of the terminal device in cell K, and ⁇ ⁇ class is the maximum RF output power determined by the class of the terminal device, Q qua i min is the minimum quality level preset by the cell K, Q qualmin .
  • Ffset is Q qua i miI ⁇ ⁇ re-selection offset value, F ( ) means to find the maximum or minimum value of the parameter in parentheses, or mean, F ( ) can be defined according to the specific situation.
  • the cell measurement start-up and re-selection parameters are calculated by the above method, and the measurement and re-selection of the cell are the same as the prior art. I won't go into details here.
  • the scheduling parameters of the current cell and other cells are obtained; the current cell and other cells are sorted according to the scheduling parameters; and the services of other cells are determined according to the ranking result. Whether the quality meets the cell reselection conditions.
  • the cell M is a co-frequency cell or any cell in an inter-frequency cell having the same priority
  • the cell S is the current cell
  • the narrowband is X.
  • the narrow band i is any narrow band in the cell S, and the ordering parameters satisfy:
  • RM F ( RM X ) ;
  • RM x Qmeas. M x+Qoffset
  • R s is the ranking parameter of the cell S
  • R M is the ranking parameter of the cell M
  • Q meas , s i is the RSRP measurement value of the narrowband i
  • Q meas , M x is the RSRP measurement value of the narrowband x
  • Q hys t is the cell S Reselect the hysteresis value
  • F feet is the reselection offset value of the cell M
  • F ( ) indicates the maximum or minimum value of the parameter in the parentheses, or the mean value.
  • F ( ) can be defined on a case-by-case basis.
  • the cell re-selection parameters are calculated by the foregoing method, and the specific measurement and re-selection mode of the cell is the same as the prior art, and details are not described herein again.
  • the terminal device After the terminal device analyzes the measurement result, if the measurement result reaches the inner cell narrowband reselection condition, the terminal device is reselected from the current narrowband to the narrowband to be reselected.
  • the paging message needs to be sent to all narrowbands in the current cell, and may be sent at the same time, or may be sent one by one in a certain order, so that The paging message is received at a specific terminal device.
  • the terminal device may further perform information interaction with the base station to which the current cell belongs, including: the terminal device may be in the TA (Tracking Area) When the tracking area is updated, a reselection request is generated, and the reselection request includes the sorting result or the information of the narrowband to be reselected. Then, the reselection request is sent to the base station to which the current cell belongs, so that the base station to which the current cell belongs sends reselection to the terminal device. Confirmation information; finally, receiving reselection confirmation information sent by the base station to which the current cell belongs.
  • TA Tracking Area
  • the reselection confirmation information includes the narrowband to be reselected selected by the base station to which the current cell belongs according to the sorting result, and when the reselection request includes the information of the narrowband to be reselected, the reselection confirmation information includes the current cell.
  • the message is sent directly to the corresponding narrowband according to the distribution of the terminal device on the narrowband, so that the specific terminal device on the narrowband receives the paging message. If there is a certain end in the current cell The end device does not update its narrowband stop information by the TA within a preset time, indicating that the terminal device may not be in the jurisdiction of the base station to which the current cell belongs. Therefore, the base station to which the current cell belongs may delete the corresponding narrowband stay information of the terminal device, so as to facilitate Perform narrowband stop information management.
  • the preset time may be several TA update periods, such as 5 or 6 TA update periods.
  • the terminal device After the terminal device analyzes the measurement result, if the measurement result reaches the inter-cell narrowband reselection condition, the terminal device is reselected from the current narrowband to a corresponding narrowband of another cell.
  • the terminal device For the specific re-selection method, reference may be made to the prior art, and the present invention is not described again.
  • the narrowband is converted into a narrowband switch, and the frequency band measurement method includes:
  • the terminal device receives the measurement parameter sent by the base station.
  • the measurement parameter may include: a first measurement initiation threshold or a second measurement initiation threshold, configured to instruct the terminal device to measure the quality of service of other narrowbands.
  • the measurement parameter may further include a measurement reporting condition for instructing the terminal device to report the corresponding measurement condition.
  • the reporting condition may be a time parameter or a threshold parameter.
  • the base station may also modify the measurement configuration of the RRC protocol: adding the cell narrowband configuration information to the measurement object parameter; adding the NBConfig-Obj parameter, the parameter may indicate the location information of the narrowband in the cell; and adding the current cell in reporting the configuration parameter
  • the narrowband measurement result reports the startup parameter to indicate the measurement reporting condition, such as adding an NBConfig-RepEvent parameter, which indicates a narrowband measurement result reporting threshold in the current cell, and the threshold is set to enable the terminal device to preferentially trigger the narrowband measurement result in the current cell.
  • the parameter may also be the same as the existing measurement result reporting parameter; in the quantity configuration parameter, the parameter related to the filter coefficient of the current cell narrowband measurement result may be increased; in the measurement gap configuration parameter, a measurement gap may be defined, the terminal device Performing measurement of the quality of service in the measurement gap; adding a current cell narrowband measurement start threshold parameter, such as a first measurement start threshold or a second measurement start threshold, etc., and then, the terminal device enters the newly added or modified parameter Reception.
  • a current cell narrowband measurement start threshold parameter such as a first measurement start threshold or a second measurement start threshold, etc.
  • the terminal device configures the terminal device according to the measurement parameter.
  • the quality of service of the narrowband of the current cell to the narrowband of the current cell and/or other cells make measurements.
  • the measurement of the quality of service of the current narrowband that the terminal device is in is ongoing.
  • the measurement of the service quality of the other narrowband by the terminal device may be initiated by itself: when the quality of the current narrowband is less than the first measurement start threshold, the quality of service of other narrowband is measured.
  • the negotiation may be initiated by the base station: when the current narrowband service quality is less than the second measurement initiation threshold, the measurement initiation request is sent to the base station to which the current cell belongs; the startup confirmation information sent by the base station to which the current cell belongs is received; and the service quality of other narrowband is measured.
  • the measurement of the other narrowband by the terminal can be performed in the measurement gap or at the time when the terminal negotiates with the base station. When the terminal device measures other narrowbands, the uplink and downlink data can be stopped.
  • the measurement of the service quality of the narrowband of the other cell by the terminal device can be referred to the prior art, and details are not described herein again.
  • the terminal device analyzes the measurement result.
  • the terminal device When the terminal device is in the connected state, the terminal device performs only the analysis of the measurement result, such as determining whether the reporting condition, the reported measurement result content, etc., the main analysis process is completed by the base station of the current cell.
  • the terminal device acquires narrowband information to be switched.
  • the measurement result is sent to the base station to which the current cell belongs, so that the base station to which the current cell belongs determines the to-be determined according to the measurement result.
  • the measurement result includes: a service quality measurement result of the narrowband in the current cell, that is, a service quality measurement result of the current narrowband and other narrowbands in the current cell, respectively, and the measurement result may also include the other narrowband location information. Then, the terminal device receives the narrowband information to be switched sent by the base station to which the current cell belongs.
  • the terminal device When the terminal device measures the service quality of the narrowband of the other cell, when the measurement reporting condition is reached, the terminal device sends the measurement result to the base station to which the current cell belongs, so that the base station to which the current cell belongs determines the to-be determined according to the measurement result. And performing a handover request to the base station to which the to-be-switched cell belongs, the measurement result includes: a narrowband service quality measurement result in the current cell, and a narrowband service quality measurement result of the other cell, the handover request And including a service quality measurement result of each narrowband of the to-be-switched cell.
  • the terminal device receives the handover request acknowledgement information forwarded by the base station to which the current cell belongs, and the handover request acknowledgement information is generated by the base station to which the to-be-switched cell belongs, and includes the to-be-switched cell index.
  • the narrowband information to be switched is generated by the base station to which the to-be-switched cell belongs, and includes the to-be-switched cell index. The narrowband information to be switched.
  • the terminal device switches the terminal device from the current narrowband to the narrowband to be switched according to the to-be-switched narrowband information.
  • the terminal device If the terminal device receives the to-be-switched narrowband information generated and sent by the base station to which the current cell belongs, the terminal device switches the terminal device from the current narrowband to the narrowband to be switched designated by the base station to which the current cell belongs.
  • the terminal device If the terminal device receives the handover request acknowledgement information generated by the base station to which the cell to be switched belongs, the terminal device needs to perform the narrowband information to be switched according to the handover request acknowledgement information. The terminal device switches from the current narrowband to the narrowband to be switched designated by the to-be-switched cell. It should be noted that the number of the foregoing steps may be increased or decreased according to the actual situation, and the sequence of the steps may be appropriately adjusted.
  • the embodiments of the present invention are only examples, and any technical person skilled in the art may disclose the technical scope disclosed by the present invention. Variations or substitutions are readily conceivable within the scope of the invention.
  • An embodiment of the present invention provides a frequency band measurement method, which is applied to a communication system, where the communication system includes: two or more cells supporting narrowband communication, each cell including at least two narrowbands having different frequencies, and the bandwidth of the narrowband is smaller than Equal to the system bandwidth of the communication system, the method specifically includes:
  • the base station sends the measurement parameters to the terminal device, so that the terminal device configures the terminal device according to the measurement parameters.
  • the base station is a base station to which the current cell where the terminal device belongs.
  • the terminal device works in a network system supporting narrowband communication, and the terminal device performs measurement on the quality of service according to the parameters configured by the base station, and at the same time, the terminal device selects in depth frequency selectivity according to the analysis of the measurement result of the service quality.
  • the current intra-cell or inter-cell narrowband transform is selectively performed, and the inter-cell conversion is directly performed blindly, so that the narrowband transform between cells can be more targeted, and the cell is avoided.
  • the useless transformation between the two, thereby reducing resource waste; at the same time, the useful narrowband transform in the small interval or the cell also enables the narrowband transformed terminal device to obtain better quality of service.
  • the measurement parameters may include: other narrowband measurement start parameters of the current cell, specifically: a first RSRP threshold and/or a second RSRP threshold, and a first RSRQ threshold, and a measurement start parameter of another narrowband of the cell, specifically: a third RSRP threshold and/or a fourth RSRP threshold, and a second RSRQ threshold, a current narrowband reselection hysteresis value and other narrowband reselection offset values, Reselect the time period, the dwell threshold, and so on.
  • the measurement parameter may be sent to the terminal device through the system message 3 of the RRC (Radio Resource Control) protocol.
  • RRC Radio Resource Control
  • the measurement parameter may further include: a first measurement start threshold or a second measurement start threshold, a measurement report condition, and the like, and the foregoing parameter may be delivered by adding a new RRC protocol parameter or modifying an original RRC parameter.
  • the measurement configuration of the RRC protocol may be modified: adding the narrowband configuration information of the cell to the measurement object parameter; adding the NBConfig-Obj parameter, the parameter may indicate the location information of the narrowband in the cell; and adding the current cell narrowband measurement in the reporting configuration parameter
  • the startup parameter is reported to indicate the measurement reporting condition, for example, the NBConfig-RepEvent parameter is added, and the parameter indicates a narrowband measurement result reporting threshold in the current cell, and the threshold is set to enable the terminal device to preferentially trigger the measurement result of the narrowband measurement in the current cell.
  • the parameter can also be the same as the existing measurement result reporting parameter; in the quantity configuration parameter, the parameter related to the filter coefficient of the current cell narrowband measurement result can be increased; in the measurement gap configuration parameter
  • the specific action of the base station is related to the state in which the terminal device is located. For example, when the terminal device is in an idle state, on the one hand, the base station may receive a reselection request sent by the terminal device when the TA is updated, where the reselection request includes the terminal device being valid for the current narrowband RSRP valid value and other narrowband RSRPs.
  • the result of sorting the values when the narrowest band of the RSRP effective value is one in the sorting result, the base station can select the narrowband with the largest RSRP effective value as the narrowband to be reselected;
  • the narrowband in the narrowband with the largest effective value of the RSRP and the narrowband of the current narrowband are selected as the narrowband to be reselected; then, the base station sends the narrowband information to be reselected to the terminal device. In order to facilitate the terminal device to reselect the terminal device from the current narrowband to the narrowband to be reselected.
  • the base station may receive a reselection request sent by the terminal device when the TA is updated, and the reselection request includes the information of the narrowband to be reselected; the reselection confirmation information is sent to the terminal device, and the reselection confirmation information includes the narrowband to be reselected. Confirmation information of the information. After the base station confirms, the terminal device reselects the terminal device from the current narrowband to the narrowband to be reselected.
  • the base station can update through the dynamic TA. Mastering the distribution of each terminal device on a narrowband.
  • the base station needs to perform paging for a specific terminal device, it does not need to send paging messages to all narrowbands in the current cell, but according to the distribution of the terminal devices on the narrowband.
  • the paging message is sent directly to the corresponding narrowband so that the particular terminal device on the narrowband receives the paging message.
  • a terminal device in the current cell does not update its narrowband stay information through the TA within a preset time, it indicates that the terminal device may not be in the jurisdiction of the base station, so the base station may delete the corresponding narrowband stay information of the terminal device, so that For narrowband stop information management.
  • the preset time may be several TA update periods, such as 5 or 6 TA update periods.
  • the terminal device needs to perform inter-cell reselection, the narrowband information of other cells that the base station can broadcast, and other narrowbands are narrowbands other than the current narrowband in the current cell where the terminal device is located. In this way, the terminal device can acquire the cell supporting the narrowband communication, and perform the corresponding narrowband reselection between the cells.
  • the method for measuring the frequency band specifically includes:
  • the base station A sends configuration parameters to the terminal device.
  • the measurement parameter may include: a first measurement initiation threshold or a second measurement initiation threshold, configured to instruct the base station to measure the quality of service of other narrowbands.
  • the measurement parameter may further include a measurement reporting condition for instructing the terminal device to report the corresponding measurement condition.
  • the reporting condition may be a time parameter or a threshold parameter, which is not limited by the present invention.
  • the terminal device performs configuration and measurement according to configuration parameters.
  • the terminal device sends the measurement result to the base station A.
  • the terminal device When the measurement reporting condition is reached, the terminal device sends a measurement result to the base station A.
  • the measurement result includes: the narrowband service quality measurement result in the current cell, steps S404 and S405 are performed.
  • S404 The base station A sends the narrowband information to be switched to the terminal device.
  • the base station A After receiving the measurement result sent by the terminal device, the base station A determines the narrowband to be switched according to the measurement result, so that the terminal device switches from the current narrowband to the narrowband to be switched designated by the to-be-switched cell.
  • the sorting method may be adopted.
  • S405 The terminal device switches to the corresponding narrowband according to the narrowband information to be switched.
  • step S406 is performed.
  • the above steps S404 and S405 are not performed.
  • the present invention is merely illustrative and not limited thereto.
  • the terminal device sends a measurement start request to the base station A.
  • the base station A sends the startup confirmation information to the terminal device.
  • the base station A After receiving the measurement initiation request sent by the terminal device, the base station A sends the startup confirmation information to the terminal device, so that the terminal device measures the service quality of the other narrowband, so that the purpose of the negotiation between the base station A and the terminal device is achieved, of course, in a specific case. Then, the base station A can also send the rejection start information to the terminal device, so that the terminal device does not perform other narrowband service quality measurement.
  • the terminal device measures the quality of service of other narrowbands.
  • step S408 For the specific steps of step S408, reference may be made to step S303 in the foregoing embodiment.
  • the terminal device sends the measurement result to the base station A.
  • the base station A may determine the to-be-switched cell according to the measurement result, and assume that the base station to which the handover cell belongs is Base station B. Go to step S410.
  • the base station A sends a handover request to the base station B.
  • the base station B sends the handover request acknowledgement information to the base station A, where the handover request acknowledgement information is generated by the base station B, which is the base station to which the to-be-switched cell belongs, and includes the narrowband information to be switched specified by the to-be-switched cell.
  • the base station A forwards the handover request acknowledgement information to the terminal device.
  • the terminal device switches to the corresponding narrowband according to the narrowband information to be switched in the handover request acknowledgement information.
  • the terminal device switches the terminal device from the current narrowband to the narrowband to be switched designated by the to-be-switched cell according to the handover request acknowledgement information.
  • the narrowband that the terminal device finally switches is a narrowband to be switched specified by the to-be-switched cell according to the narrowband condition in the to-be-switched cell. This avoids the blindness of narrowband handover between cells, makes the handover more targeted, and the narrowband service quality after handover is better.
  • the terminal device works in a network system supporting narrowband communication, and the terminal device analyzes the measurement result of the service quality, and when a narrowband selective fading or the like needs to be switched, Selectively perform intra-cell or inter-cell narrow-band transformation without blindly performing inter-cell transformation, which can make the narrow-band transformation between cells more targeted, avoiding useless transformation between cells, thereby reducing resource waste;
  • the useful narrowband transform in the small interval or cell also enables the narrowband transformed terminal equipment to obtain better quality of service.
  • the embodiment of the present invention provides a terminal device 50, which is applied to a communication system, where the communication system includes: two or more cells supporting narrowband communication, each cell includes at least two narrowbands with different frequencies, and the bandwidth of the narrowband is less than or equal to The system bandwidth of the communication system is as shown in FIG. 5, and the terminal device 50 specifically includes:
  • the measuring unit 501 is configured to measure a narrowband service quality of a narrowband of the current cell and/or another cell, where the quality of service includes: a reference signal received power RSRP and a reference signal received quality RSRQ, where the other cell is a terminal device A cell supporting narrowband communication outside the current cell.
  • the quality of service includes: a reference signal received power RSRP and a reference signal received quality RSRQ, where the other cell is a terminal device A cell supporting narrowband communication outside the current cell.
  • the analyzing unit 502 is configured to analyze the measurement result.
  • the transforming unit 503 is configured to perform intra-cell or inter-cell narrow-band transform on the narrowband where the terminal device is located when the measurement result satisfies a preset narrowband transform condition.
  • the terminal device works in a network system supporting narrowband communication, and the transform unit selectively performs the current cell interior when the narrowband selective fading and the like need to switch the narrowband according to the analysis of the measurement result of the quality of service.
  • the inter-cell narrow-band transformation without blindly directly performing inter-cell transformation, which can make the narrow-band transformation between cells more targeted, avoiding useless transformation between cells, thereby reducing resource waste; at the same time, small-area or intra-cell
  • the useful narrowband transform also enables the narrowband transformed terminal equipment to achieve better quality of service.
  • the terminal device 50 further includes:
  • the first receiving unit 504 is configured to receive measurement parameters sent by the base station.
  • the configuration unit 505 is configured to configure the terminal device according to the measurement parameter.
  • the measurement parameters received by the first receiving unit 504 may include: a first RSRP threshold and/or a second RSRP threshold, and a first RSRQ threshold.
  • the narrowband is converted into a narrowband reselection, and the measuring unit 501 is specifically configured to:
  • the terminal device Performing continuous measurement on the current narrowband quality of service in which the terminal device is located; if the current narrowband RSRP measurement value is less than the first RSRP threshold, and the current narrowband RSRQ measurement value is less than the first RSRQ threshold, serving other narrowband services The quality is measured, and the other narrowband is a narrowband other than the current narrowband in the current cell where the terminal device is located; or if the current narrowband RSRP measurement value is smaller than the second RSRP threshold, and the current narrowband RSRQ The measured value is less than the first RSRQ threshold, and the quality of service of the other narrowband is measured.
  • the measurement parameters received by the first receiving unit 504 may further include: a current narrowband reselection hysteresis value, other narrowband reselection offset values, a reselection time period, and a dwell threshold.
  • the analyzing unit 502 specifically includes:
  • the current narrowband RSRP RMS value being the sum of the current narrowband RSRP measurement value and the current narrowband reselection lag value, the other
  • the narrowband RSRP effective value is the difference between the other narrowband RSRP measurement values and the other narrowband reselection offset values;
  • the terminal device stays in the current narrowband time is greater than the stay threshold. And determining that the service quality of the narrowband in the current cell meets a preset narrowband transform condition.
  • the analyzing unit 502 is further configured to: when the narrowband of the RSRP valid value is one, select the RSRP valid value.
  • the narrowest band is used as the narrowband to be reselected; when the narrowest RMS of the RSRP is more than two, the frequency in the narrowband with the largest RMS effective value is far from the frequency of the current narrowband.
  • the narrow band acts as a narrow band to be reselected.
  • the transform unit 503 is configured to reselect the terminal device from the current narrowband to the narrowband to be reselected.
  • the terminal device 50 further includes: a generating unit 506, configured to generate a reselection request when the tracking area TA is updated, where the reselection request includes the sorting result Or the information of the narrow band to be reselected;
  • the first sending unit 507 is configured to send the reselection request to the base station to which the current cell belongs, so that the base station to which the current cell belongs sends reselection confirmation information to the terminal device;
  • the first receiving unit 504 is further configured to receive the reselection confirmation information sent by the base station to which the current cell belongs;
  • the reselection confirmation information includes a narrowband to be reselected selected by the base station to which the current cell belongs according to the ranking result, when the reselection request includes the to-be-selected
  • the reselection confirmation information includes the confirmation information of the information about the narrowband to be reselected by the base station to which the current cell belongs.
  • the first obtaining unit 508 is configured to acquire narrowband information of the other cells broadcast by the base station to which the current cell belongs.
  • the second obtaining unit 509 is configured to obtain narrowband information of the other cell carried by the primary synchronization signal PSS and the secondary synchronization signal SSS, or obtain narrowband information of the other cell carried by the physical cell identifier PCI.
  • the analyzing unit 502 is specifically configured to: determine, according to the cell reselection parameter, whether the service quality of the other cell is Meet the cell reselection conditions.
  • the analyzing unit 502 is specifically configured to:
  • the measurement parameter received by the first receiving unit 504 may further include: a first measurement start threshold, when the terminal device is in the connected state, the measuring unit 501 is specifically configured to: continue the service quality of the current narrowband where the terminal device is located Measuring; measuring the quality of service of the other narrowband when the current narrowband quality of service is less than the first measurement initiation threshold.
  • the other narrowband is a narrowband other than the current narrowband in the current cell in which the terminal device is located.
  • the measurement parameter received by the first receiving unit 504 may further include: a second measurement start threshold, where the measurement unit 501 is specifically configured to: set the terminal when the terminal device is in the connected state The current narrowband service quality of the standby device is continuously measured; when the current narrowband service quality is less than the second measurement initiation threshold, the measurement initiation request is sent to the base station to which the current cell belongs; and the startup confirmation information sent by the base station to which the current cell belongs is received. Measuring the quality of service of the other narrowbands.
  • the first sending unit 507 is further configured to:
  • the measurement result is sent to the base station to which the current cell belongs, so that the base station to which the current cell belongs determines the narrowband to be switched according to the measurement result, and the measurement result includes: Narrowband quality of service measurements.
  • the first sending unit 507 is further configured to: when the measurement reporting condition is met, send the measurement result to the base station to which the current cell belongs, so that the base station to which the current cell belongs determines that the narrowband to be switched is determined according to the measurement result,
  • the measurement result includes: a narrowband service quality measurement result in the current cell;
  • the first receiving unit 504 is further configured to receive the narrowband information to be switched sent by the base station to which the current cell belongs.
  • the transforming unit 502 is configured to switch the terminal device from the current narrowband to the narrowband to be switched according to the to-be-switched narrowband information.
  • the first sending unit 507 may be further configured to: when the measurement reporting condition is met, send the measurement result to the base station to which the current cell belongs, so that the base station to which the current cell belongs determines the cell to be switched according to the measurement result. And transmitting a handover request to the base station to which the to-be-switched cell belongs, where the measurement result includes: a narrowband service quality measurement result in the current cell and a service quality measurement result of each narrowband of the other cell, where the handover request includes Determining the service quality measurement result of each narrowband of the handover cell; the first receiving unit 504 is further configured to receive the handover request acknowledgement information forwarded by the base station to which the current cell belongs, where the handover request acknowledgement information is to be switched The base station to which the cell belongs is generated, and includes narrowband information to be switched designated by the to-be-switched cell.
  • the transforming unit 502 is further configured to switch the terminal device from the current narrowband to the narrowband to be switched according to the to-be-switched narrowband information.
  • the terminal device provided by the embodiment of the present invention works in a network system supporting narrowband communication, and the transform unit selectively performs the case where the narrowband selective fading and the like need to switch the narrowband according to the analysis of the measurement result of the quality of service.
  • the transformation of narrowbands within the current cell or between cells without blindly directly performing inter-cell transformation, which enables inter-cell
  • the narrowband transform is more targeted, avoiding useless transitions between cells, thereby reducing resource waste.
  • useful narrowband transforms between cells or within cells also enable better quality of service for narrowband transformed terminal devices.
  • An embodiment of the present invention provides a base station, which is applied to a communication system, where the communication system includes: two or more cells supporting narrowband communication, each cell including at least two narrowbands having different frequencies, and the bandwidth of the narrowband is smaller than The system bandwidth is equal to the communication system, and the base station specifically includes:
  • a second sending unit configured to send the measurement parameter to the terminal device, so that the terminal device configures the terminal device according to the measurement parameter.
  • the terminal device performs configuration by using the measurement parameters sent by the second sending unit, and performs corresponding analysis according to the measurement result of the service quality, and selectively performs current selection when a narrow band selective fading or the like needs to be switched.
  • the intra-cell or inter-cell narrow-band transformation does not blindly perform inter-cell transformation directly, which can make the narrow-band transformation between cells more targeted, avoiding useless transformation between cells, thereby reducing resource waste; meanwhile, small intervals or cells
  • the useful narrowband transform within the narrowband transform also results in better quality of service for the narrowband transformed terminal equipment.
  • the base station further includes: a second receiving unit, configured to: when the tracking area TA is updated, receive a reselection request sent by the terminal device, where the reselection request includes the RSRP valid value of the current narrowband and other narrowband The RSRP valid values are sorted by the sorted result.
  • a selecting unit configured to select, when the narrowing band of the RSRP effective value is the largest, the narrow band with the largest effective value of the RSRP as the narrow band to be reselected.
  • the selecting unit is further configured to: when the narrowest RSRP effective value is greater than two in the sorting result, select a narrowband in which a frequency in the narrowband with the largest effective value of the RSRP is far from the frequency of the current narrowband The narrow band is to be reselected.
  • the second sending unit is further configured to send the narrowband information to be reselected to the terminal device, so that the terminal device reselects the terminal device from the current narrowband to the narrowband to be reselected.
  • the second receiving unit is further configured to: when the tracking area TA is updated, receive a reselection request sent by the terminal device, where the reselection request includes the narrowband that is to be reselected Information; the second sending unit is further configured to send to the terminal device Sending reselection confirmation information, the reselection confirmation information including confirmation information of the information of the narrowband to be reselected.
  • the device further includes: a broadcast unit, narrowband information of the other cells for broadcasting, wherein the other narrowband is a narrowband of the current cell in which the terminal device is located except the current narrowband.
  • the second receiving unit is further configured to receive a measurement start request sent by the terminal device, where the second sending unit is further configured to send the startup confirmation information to the terminal device, so that Measuring the quality of service of the other narrowbands by the terminal device.
  • the base station further includes: a first determining unit, configured to determine, according to the measurement result, a narrowband to be switched; the second sending unit is further configured to send a handover request to the base station to which the to-be-switched cell belongs, where the handover request includes The service quality measurement result of each narrow band of the handover cell is mentioned.
  • the second receiving unit is further configured to receive the handover request acknowledgement information sent by the base station to which the to-be-switched cell belongs, where the handover request acknowledgement information is generated by the base station to which the to-be-switched cell belongs, and includes the to-be-switched cell specified to be configured. Switch narrowband information.
  • the second sending unit is further configured to forward the handover request acknowledgement information to the terminal device, so that the terminal device switches the terminal device from the current narrowband to the standby according to the handover request acknowledgement information. Switching the narrowband to be switched specified by the cell.
  • the base station further includes: a second determining unit, configured to determine, according to the measurement result, a cell to be switched, where the measurement result includes: a service quality measurement result of the narrowband in the current cell, and a service quality of each narrowband of the other cell
  • the second receiving unit is further configured to receive the measurement result sent by the terminal device; the second sending unit is further configured to send the to-be-switched cell information to the terminal device, so that the terminal device is configured according to the The switching cell information is sent to the base station to which the to-be-switched cell belongs, and the terminal device is switched from the current narrowband to the narrowband to be switched designated by the to-be-switched cell.
  • An embodiment of the present invention provides a communication system, which is applied to a communication system, where the communication system includes: two or more cells supporting narrowband communication, each cell including at least two narrowbands having different frequencies, and the bandwidth of the narrowband Less than or equal to the system bandwidth of the communication system, the communication system includes:
  • Any of the terminal devices provided by the embodiments of the present invention A type of base station.
  • the cell in the communication system can also support broadband.
  • the distribution of the downlink frequency band of the cell in the communication system is as shown in FIG. 9, and is based on the existing PDCCH (physical downlink control channel).
  • the booster port has a plurality of different frequencies, equal bandwidths, and narrow bands arranged in sequence.
  • the terminal device works in a network system supporting narrowband communication, and the cell in the system also supports broadband, ensuring normal implementation of some functions in the prior art.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

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Abstract

本发明的实施例提供一种频带测量方法、设备与系统,涉及通信领域,能够使小区间的窄带变换更有针对性,避免小区间的无用变换,减少资源浪费;同时,也使得窄带变换后的终端设备获得较好服务质量。应用于一种通信系统,所述通信系统包括:两个以上支持窄带通信的小区,每个小区中包括至少两个频率不同的窄带,所述窄带的带宽小于等于所述通信系统的系统带宽,所述方法具体包括:对当前小区的窄带和/或其他小区的窄带的服务质量进行测量,所述服务质量包括:参考信号接收功率RSRP和参考信号接收质量RSRQ,所述其他小区为终端设备所处的当前小区之外的支持窄带通信的小区;对测量结果进行分析;若所述测量结果满足预设的窄带变换条件,将所述终端设备从所述当前窄带变换到所述当前小区或所述其他小区中相应的窄带上。本发明的实施例提供的频带测量方法、设备与系统用于频带的测量。

Description

一种频带测量方法、 设备与系统 技术领域
本发明涉及通信领域, 尤其涉及一种频带测量方法、 设备与系统。 背景技术 物联网就是要实现人与物、 物与物的互联互通的网络。 随着物联 网的发展以及 LTE ( Long Term Evolution , 长期演进)网络的大规模部 署, 运营商希望减少维护的接入网的数目以减少整个网络的维护成本, 提供基于 LTE的 ^[氐成本 MTC ( machine type communication , 机器式通 信) 终端, 以替换在 M2M (机器对机器通信) 应用中的 GSM(Global System of Mobile communication , 全球移动通讯系统) /GPRS ( General Packet Radio Service , 通用分组无线服务技术)终端, 从而在 M2M应用 中使用 LTE网络替换 GSM/GPRS网络。
目前可能减少终端成本的方法包括: 减少终端所支持的发射 /接收 带宽, 减少终端峰值速率, 使用 Half - FDD ( Half - Frequency Division
Duplexing , 半频分双工) , 使用单接收链, 以及筒化 HARQ ( Hybrid
Automatic Repeat Request , 混合自动重传请求) 机制等。 其中, 减少 终端所支持的发射 /接收带宽的方法,可以是 MTC终端只支持较小的工 作带宽, 比如 1.4Μ、 3Μ或者 5Μ等。
现有技术中的 LTE的 MTC终端会根据预设条件, 比如当前工作的 频带信号质量差于某个阈值时, 启动同频小区、 异频小区或者异系统小 区的测量, 并根据测量结果进行同频小区、 异频小区或者异系统小区的 重选或者切换, 其中, 当前工作的频带信号质量差于某个阈值通常是因 为 MTC 终端移动超出当前小区的服务范围引起的。 但是, 当减少终端 所支持的发射 /接收带宽时, 由于终端只工作在一个较窄的频带内, 因此 可能产生频率选择性衰落, 并引起 MTC 终端在当前窄带的服务质量较 差, 而触发 MTC终端进行相应的小区变换, 所述小区变换包括 MTC终 端处于空闲态时小区间的重选和 MTC终端处于连接态时小区间的切换, 但是由于 MTC终端的位置并未改变,变换后的小区服务质量可能依然较 差, 为保证服务质量, MTC 终端会进行反复的小区间的无用变换, 导致 资源的浪费。 同时, 工作于窄带的 MTC终端在向支持窄带 MTC终端的 目标小区进行窄带变换时, 变换到的新的窄带也可能服务质量较差。 发明内容 本发明的实施例提供一种频带测量方法、 设备与系统, 能够使小 区间的窄带变换更有针对性, 避免小区间的无用变换, 减少资源浪费; 同时, 也使得窄带变换后的终端设备获得较好服务质量。
为达到上述目的, 本发明的实施例采用如下技术方案:
一方面, 提供一种频带测量方法, 应用于一种通信系统, 所述通信 系统包括: 两个以上支持窄带通信的小区,每个小区中包括至少两个频 率不同的窄带, 所述窄带的带宽小于等于所述通信系统的系统带宽, 所 述方法具体包括:
对当前小区的窄带和 /或其他小区的窄带的服务质量进行测量, 所 述服务质量包括: 参考信号接收功率 RSRP和参考信号接收质量 RSRQ, 所述其他小区为终端设备所处的当前小区之外的支持窄带通信的小区; 对测量结果进行分析, 若所述测量结果满足预设的窄带变换条件, 将所述终端设备从所述当前窄带变换到所述当前小区或所述其他小区 中相应的窄带上。
一方面, 提供一种频带测量方法, 应用于一种通信系统, 所述通信 系统包括: 两个以上支持窄带通信的小区,每个小区中包括至少两个频 率不同的窄带, 所述窄带的带宽小于等于所述通信系统的系统带宽, 所 述窄带的带宽小于等于所述通信系统的系统带宽, 所述方法具体包括: 向终端设备发送测量参数,以便于终端设备根据所述测量参数对所 述终端设备进行配置。
一方面, 提供一种终端设备, 应用于一种通信系统, 所述通信系 统包括: 两个以上支持窄带通信的小区,每个小区中包括至少两个频率 不同的窄带, 所述窄带的带宽小于等于所述通信系统的系统带宽, 所述 终端设备具体包括:
测量单元, 用于对当前小区的窄带和 /或其他小区的窄带的服务质 量进行测量, 所述服务质量包括: 参考信号接收功率 RSRP和参考信号接 收质量 RSRQ, 所述其他小区为终端设备所处的当前小区之外的支持窄 带通信的小区;
分析单元, 用于对测量结果进行分析;
变换单元, 用于在所述测量结果满足预设的窄带变换条件时, 对 所述终端设备所处窄带进行小区内部或小区间的窄带变换。
一方面, 提供一种基站, 应用于一种通信系统, 所述通信系统包 括: 两个以上支持窄带通信的小区,每个小区中包括至少两个频率不同 的窄带, 所述窄带的带宽小于等于所述通信系统的系统带宽, 所述基站 具体包括:
第二发送单元, 用于向终端设备发送测量参数, 以便于终端设备根 据所述测量参数对所述终端设备进行配置。
一方面, 提供一种通信系统, 其特征在于, 所述通信系统包括: 两个以上支持窄带通信的小区,每个小区中包括至少两个频率不同的窄 带, 所述窄带的带宽小于等于所述通信系统的系统带宽, 所述通信系统 还包括:
上述任意一种终端设备;
上述任意一种基站。
本发明的实施例提供一种频带测量方法、 设备与系统, 应用于一种 通信系统, 所述通信系统包括: 两个以上支持窄带通信的小区, 每个小 区中包括至少两个频率不同的窄带, 所述窄带的带宽小于等于所述通信 系统的系统带宽, 所述方法具体包括: 对当前小区的窄带和 /或其他小区 的窄带的服务质量进行测量,所述服务质量包括:参考信号接收功率 RSRP 和参考信号接收质量 RSRQ, 所述其他小区为终端设备所处的当前小区之 外的支持窄带通信的小区; 对测量结果进行分析, 若所述测量结果满足 预设的窄带变换条件, 将所述终端设备从所述当前窄带变换到所述当前 小区或所述其他小区中相应的窄带上。 这样一来, 终端设备工作在支持 窄带通信的网络系统中, 其工作的带宽较窄, , 终端设备根据对服务质 量的测量结果的分析, 在深度频率选择性衰落等需要切换窄带的情况出 现时, 有选择地进行当前小区内部或小区间窄带的变换, 而不盲目的直 接进行小区间的变换, 这样能够使小区间的窄带变换更有针对性, 避免 小区间的无用变换, 从而减少资源浪费; 同时, 小区间或小区内的有用 的窄带变换也使得窄带变换后的终端设备获得较好服务质量。
附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实 施例或现有技术描述中所需要使用的附图作筒单地介绍, 显而易见地, 下面 描述中的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明实施例提供的一种频带测量方法流程图;
图 2为本发明实施例提供的另一种频带测量方法流程图;
图 3为本发明实施例提供的再一种频带测量方法流程图;
图 4为本发明实施例提供的又一种频带测量方法流程图;
图 5为本发明实施例提供的一种终端设备结构示意图;
图 6为本发明实施例提供的另一种终端设备结构示意图;
图 7为本发明实施例提供的又一种终端设备结构示意图;
图 8 为本发明实施例提供的一种通信系统中的小区下行频带的分 布示意图。
具体实施方式 下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行 清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而 不是全部的实施例。基于本发明中的实施例, 本领域普通技术人员在没有做 出创造性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
本发明实施例提供一种频带测量方法, 应用于一种通信系统, 所述通信 系统包括: 两个以上支持窄带通信的小区, 每个小区中包括至少两个频率不 同的窄带, 所述窄带的带宽小于等于所述通信系统的系统带宽, 例如, 在 LTE系统中, 所述窄带的带宽可以是 5M、 10M、 15M和 20M, 如图 1所示, 所述方法具体包括:
S101、终端设备对当前小区的窄带和 /或其他小区的窄带的服务质量 进行测量。
需要说明的是, 所述当前小区为终端设备停留的当前窄带所处的小 区, 所述当前小区的窄带包括当前小区中的所有窄带, 所述其他小区为 终端设备所处的当前小区之外的支持窄带通信的小区。 上述服务质量也 可以称为信道质量情况, 具体可以包括: 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)。 特别的, 对当前窄带的服务质量的测量可以是持续 进行的, 即该终端设备无论出于空闲态还是连接态,都一直进行着当前 窄带的服务质量测量。
5102、 终端设备对测量结果进行分析。
终端设备可以针对自身所处的状态, 如空闲态或连接态, 测量的窄带 范围等, 对不同情况下的测量结果进行具体分析。
5103、 若所述测量结果满足预设的窄带变换条件, 将所述终端设备 从所述当前窄带变换到所述当前小区或所述其他小区中相应的窄带上。
根据不同的情况, 上述预设的窄带变换条件可以有多种, 示例的, 上述 窄带变换条件可以包括终端设备在空闲态或连接态时, 当前小区内部窄带重 选或切换条件和小区间窄带重选或切换条件。 特别的, 在本发明实施例中, 所述其他小区为终端设备所处的当前小区之外的支持窄带通信的小区。
这样一来, 终端设备工作在支持窄带通信的网络系统中, 其工作 的带宽较窄, 终端设备根据对服务质量的测量结果的分析,在深度频率 选择性衰落等需要切换窄带的情况出现时,有选择地进行当前小区内部 或小区间窄带的变换, 而不盲目的直接进行小区间的变换, 这样能够使 小区间的窄带变换更有针对性,避免小区间的无用变换,从而减少资源 浪费; 同时, 小区间或小区内的有用的窄带变换也使得窄带变换后的终 端设备获得较好的服务质量。
进一步的, 在步骤 S101 前, 终端设备还需要接收基站发送的测量参 数; 并根据所述测量参数对所述终端设备进行配置。该测量参数可以包 括: 同小区即当前小区的其他窄带的测量启动参数。 本发明实施例所述 的其他窄带为终端设备所处的当前小区中除当前窄带之外的窄带。 该测量 参数还可以包括: 其他小区的窄带的测量启动参数,如同频小区的窄带 测量启动参数, 和异频 /异系统小区的窄带测量启动参数。
需要说明的是, 上述测量参数可以参考现有技术中的定义, 也可 以根据具体情况进行重新定义, 本发明对此不做限制。 需要说明的是, 由于终端设备可以有两种工作状态: 空闲态和连接态, 在不同工作状态,终端设备在当前小区的窄带间的切换和不同小区之间的切 换具体步骤不尽相同, 因此这里分别以空闲态和连接态为例进行详细说明。
示例的, 当终端设备处于空闲态时, 所述窄带变换为窄带重选, 如图
2所示, 所述频带测量方法包括:
S201、 终端设备接收基站发送的测量参数。
该测量参数可以包括当前小区的其他窄带的测量启动参数,具体为: 第一 RSRP阈值和 /或第二 RSRP阈值, 和第一 RSRQ阈值, 以及其他小区 窄带的测量启动参数, 具体为: 第三 RSRP阈值和 /或第四 RSRP阈值, 和 第二 RSRQ阈值,用于界定是否需要进行当前小区其他窄带的测量或者其他 小区窄带的测量。 上述参数是基站相应配置的, 示例的, 基站可以仅配置第 一 RSRP阈值和第一 RSRQ阈值, 也可以同时配置第一 RSRP阈值、 第二 RSRP阈值和第一 RSRQ阈值, 但当第二 RSRP阈值存在时, 第一 RSRP阈 值在执行时失效,即终端设备以第二 RSRP阈值和第一 RSRQ阈值为参考阈 值来执行具体步骤。 特别的, 第一 RSRP阈值和 /或第二 RSRP阈值, 和第一 RSRQ 阈值可以与现有技术中的同频小区测量启动参数 S-IntraSearch和 /或 S-IntraSearchP和 S-IntraSearchQ相同。 同理, 基站可以仅配置第三 RSRP阈 值和第二 RSRQ阈值, 也可以同时配置第三 RSRP阈值、 第四 RSRP阈值和 第二 RSRQ阈值, 但当第二 RSRP阈值存在时, 第一 RSRP阈值在执行时失 效,即终端设备以第三 RSRP阈值和第二 RSRQ阈值为参考阈值来执行具体 步骤。 特别的, 第三 RSRP阈值和 /或第四 RSRP阈值, 和第二 RSRQ阈值 可以与现有技术中的非同频小区测量启动参数 S-NonlntraSearch 和 /或 S-NonlntraSearchP , 和 S-NonlntraSearchQ相同。
同时该测量参数还可以包括: 当前窄带的重选滞后值和其他窄带的重选 偏移值, 以便于终端设备根据上述参数进行窄带间的重选。
该测量参数还可以包括: 重选时间段, 用于指示不同窄带的重选时 间; 停留阈值, 用于指示终端设备在一个窄带上停留的临界时间。
5202、 终端设备根据测量参数对终端设备进行配置。
5203、 终端设备获取其他小区的窄带信息。
终端设备获取其他小区的窄带信息的方法可以有多种, 示例的, 终端设 备可以通过当前小区所属基站的广播获取其他小区的窄带信息。也可以获取 PSS ( Primary Sync Signal, 初级同步信号)和 SSS ( Secondary Sync Signal, 次级同步信号)携带的其他小区的窄带信息, 其中, 可以是一个 PSS和 SSS 组合携带一个窄带信息, 也可以是多个 PSS和 SSS组合携带同一个窄带信 息。 终端设备还可以通过获取物理小区标识 PCI ( Physical Cell Identifier, 物 理小区标识)来得到 PCI携带的其他小区的窄带信息。
S204、 终端设备对当前小区的窄带和 /或其他小区的服务质量进行测 量。
所述当前小区的窄带包括当前窄带和其他窄带。 终端设备对自身所 处的当前窄带的服务质量的测量是持续进行的。而对其他窄带服务质量 的测量需要满足当前小区的其他窄带的测量启动条件, 同理, 对其他小 区窄带的测量也需要满足其他小区窄带的测量启动条件。
当终端设备接收到的基站配置的测量参数包括第一 RSRP 阈值和第一 RSRQ阈值时, 若当前窄带的 RSRP测量值大于所述第一 RSRP阈值, 且当 前窄带的 RSRQ测量值大于所述第一 RSRQ阈值, 终端设备可以选择不对 其他窄带的服务质量进行测量; 否则, 终端设备应对其他窄带的服务质量 进行测量,所述其他窄带为所述终端设备所处的当前小区中除所述当前 窄带之外的窄带。
当终端设备接收到的基站配置的测量参数包括第二 RSRP 阈值和第一 RSRQ阈值时, 若当前窄带的 RSRP测量值大于所述第二 RSRP阈值, 且当 前窄带的 RSRQ测量值大于所述第一 RSRQ阈值, 终端设备可以选择不对 其他窄带的服务质量进行测量; 否则, 终端设备应对所述其他窄带的服务 质量进行测量,所述其他窄带为所述终端设备所处的当前小区中除所述 当前窄带之外的窄带。
可以看出, 终端设备在服务质量达到其他窄带的测量启动条件时, 同时 进行着当前窄带和所述其他窄带的服务质量测量。
当终端设备接收到的基站配置的测量参数包括第三 RSRP 阈值和第二 RSRQ阈值时, 若当前窄带的 RSRP测量值大于等于所述第三 RSRP阈值, 且当前窄带的 RSRQ测量值大于等于所述第二 RSRQ阈值, 终端设备可以 对所述其他小区窄带的服务质量进行测量; 否则, 终端设备应对所述其 他小区窄带的服务质量进行测量。所述其他小区为与当前小区相比具有相 同优先级或者较低优先级的同频小区,或者与当前小区相比具有较低优先级 的异系统小区。
当终端设备接收到的基站配置的测量参数包括第四 RSRP 阈值和第二 RSRQ阈值时, 若当前窄带的 RSRP测量值大于等于所述第四 RSRP阈值, 且当前窄带的 RSRQ测量值大于等于所述第二 RSRQ阈值, 终端设备可以 对所述其他小区窄带的服务质量进行测量; 否则, 终端设备应对所述其 他小区窄带的服务质量进行测量。所述其他小区为与当前小区相比具有相 同优先级或者较低优先级的同频小区,或者与当前小区相比具有较低优先级 的异系统小区。
需要说明的是,与当前小区相比具有较高优先级的其他小区的窄带测量 启动方法可以参照现有技术, 本发明不做限定。
特别的, 所述第三 RSRP阈值和 /或第四 RSRP阈值, 和第二 RSRQ阈 值可以与现有技术中的非同频小区测量启动参数 S-NonlntraSearch 和 /或 S-NonlntraSearchP,和 S-NonlntraSearchQ相同。所述第三 RSRP阈值可以小 于等于所述第一 RSRP 阈值, 所述第四 RSRP 阈值可以小于等于所述第二 RSRP阈值, 所述第二 RSRQ阈值可以小于等于所述第一 RSRQ阈值, 当所 述第三 RSRP阈值等于所述第一 RSRP阈值或所述第四 RSRP阈值等于所述 第二 RSRP阈值,所述第二 RSRQ阈值等于所述第一 RSRQ阈值时,为了降 低因深度选择性衰落引起的小区间窄带的概率,可以优先进行当前小区中其 他窄带的服务质量测量。
S205、 终端设备对测量结果进行分析。
在完成当前小区中其他窄带的测量之后, 终端设备对测量结果进行如 下分析:
对当前窄带的 RSRP有效值与其他窄带的 RSRP有效值进行排序;若在 所述重选时间段内, 至少存在一个所述其他窄带的 RSRP有效值处于所述 当前窄带的 RSRP有效值之前, 且所述终端设备在所述当前窄带停留的时 间大于所述停留阈值, 则判断达到所述当前小区内部窄带重选条件, 该重 选条件为预设的窄带变换条件之一。 特别的, 该停留阈值可以是 1秒。
上述当前窄带的 RSRP有效值为当前窄带的 RSRP测量值与当前窄带的 重选滞后值之和, 其他窄带的 RSRP有效值为其他窄带的 RSRP测量值与其 他窄带的重选偏移值之差。 上述当前窄带的重选滞后值可以缺省或者置零, 当所述当前窄带的重选滞后值设置为大于 0的数值时,表示当前窄带在排序 时的优先权等级, 该数值越大, 优先权越大。 上述其他窄带的重选偏移值可 以缺省或者置零, 当所述其他窄带的重选偏移值设置为大于 0的数值时, 表 示其他窄带在排序时的优先权等级,但是,数值越大,优先权越小。特别的, 所述其他窄带的重选偏移值可以是对应其他窄带中的每个窄带设置一个数 值, 也可以是对其他窄带中所有窄带统一设置一个数值。 为了筒单起见, 通 常设置统一的其他窄带的重选偏移值。
示例的, 若当前窄带的重选滞后值为 5 , 其他窄带的重选偏移值统一设 置为 3 , 当前窄带的 RSRP测量值为 6 , 其他窄带中的窄带 S的 RSRP测量 值为 4, 那么当前窄带的 RSRP有效值为 6+5=11 , 窄带 S的 RSRP有效值为 4-3=1 ,则若按照从大到小的规则排序, 当前窄带的 RSRP有效值排在窄带 S 的 RSRP有效值前面。 特别的, 上述计算中的单位可参照现有技术, 本实施 例中未添加。
当所述排序结果中 RSRP 有效值最大的窄带为一个时, 选择所述
RSRP有效值最大的窄带作为待重选窄带; 当所述排序结果中 RSRP有 效值最大的窄带有两个以上时,选择所述 RSRP有效值最大的窄带中的 频率与所述当前窄带的频率相差较远的窄带作为待重选窄带。 由于终端 设备长期在单一窄带上停留可能会出现深度的频率选择性衰落即深衰,而在 当前窄带出现频率选择性衰落的情况下,在频率与当前窄带相差较远的窄带 上, 出现深衰的概率相对较低, 因此可以选择频率相差较远的窄带作为待重 选窄带。
在完成其他小区窄带的测量之后, 终端设备对测量结果进行如下分 当所述其他小区为比所述当前小区的优先级较高或者较低的异频 或异系统小区时, 根据所述小区重选参数, 判断所述其他小区的服务质 量是否满足所述小区重选条件。
示例的, 当其他小区为比所述当前小区的优先级较高或者较低的异 频或异系统小区时, 若小区 K 为其他小区中的任意小区, 窄带 n为小区 K 中的任意窄带, 小区重选参数满足:
Srxlev=F ( Srxlev n ) ;
Squal=F ( Squal n ) ;
中, SrxleV Π― Qrxlevmeas n" ( Qrxle vmin Qrxlevminof f set ) "Pcompensation, Squal n—QqUalmeas n_(Qqualmin+Qqualmin ffset)
或者满足:
Qrxlevmeas- F ( Qrxlevmeas n )
Qqualmeas— F ( Qqualmeas n ) ;
S xl V― Qrxlevmeas " ( Qrxlevmin+Qrxlevminoffset ) "Pcompensation ·>
Squal
Figure imgf000012_0001
Srxlev为小区 K的 RSRP重选参数, Squal为小区 K的 RSRQ重选参数,
Qrxlevmeas n为窄带 ϋ的 RSRP测量值, Qqualmeas n为窄带 n的 RSRQ测量值, QndeVmln为小区 K预设的最小接收功率等级, Q rxlevminoffset为 Qndevmir^ 重选偏 移值, ?^ ^为 max(PEMAX-Pp werCiass), 其中, ΡΕΜΑχ为终端设备在小区 K 中的最大上行发射功率, ΡΡ class为由终端设备的类别确定的最大射频输出 功率, Qquaimin为小区 K预设的最小质量等级, Qqualminffset为 QquaimiI^々重选偏 移值, F ( )表示求括号中参数的最大值或最小值, 或者均值, F ( ) 可以 根据具体情况定义。
当其他小区为比所述当前小区的优先级较高或者较低的异频或异系 统小区时, 小区测量启动和重选参数采用上述方法计算, 小区的测量和重选 与现有技术相同, 这里不再赘述。
当其他小区为同频小区或具有相同优先级的异频小区时,获取当前小区 和其他小区的排序参数; 根据排序参数, 对当前小区和其他小区进行排序; 根据排序结果, 判断其他小区的服务质量是否满足小区重选条件。
示例的, 当其他小区为同频小区或具有相同优先级的异频小区时, 若小 区 M为同频小区或具有相同优先级的异频小区中的任意小区, 小区 S为当 前小区, 窄带 X为小区 M中的任意窄带, 窄带 i为小区 S中的任意窄带, 排序参数满足:
s=F ( RS l ) ;
RM=F ( RM X ) ;
其中, Rs i=Qmeas. S i+Qhyst;
RM x=Qmeas. M x+Qoffset;
或者满足:
Qmeas. S _ fn ( Qmeas. Si ) , Qmeas, M =fn ( Qmeas' Mx )
Rs—Qmeas' S +Qhyst,
RM =Qmeas, M +Qoffset?
Rs为小区 S的排序参数, RM为小区 M的排序参数, Qmeas, s i为窄带 i 的 RSRP测量值, Qmeas, M x为窄带 x的 RSRP测量值, Qhyst为小区 S重选滞 后值, Q。ffeet为小区 M的重选偏移值, F ( )表示求括号中参数的最大值或 最小值, 或者均值。 F ( ) 可以根据具体情况定义。
当其他小区为同频小区或具有相同优先级的异频小区时,小区重选参数 采用上述方法计算, 小区的具体测量和重选方式与现有技术相同, 这里不再 赘述。
S206、 将终端设备从当前窄带重选到当前小区或其他小区中相应的窄 带上。
当终端设备对测量结果分析后, 若测量结果达到所述当前小区内部 窄带重选条件,将所述终端设备从所述当前窄带重选到所述待重选窄带 上。
特别的, 在终端设备处于空闲态的情况下, 当基站需要进行特定终端设 备的寻呼时, 需要向当前小区中所有窄带发送寻呼消息, 可以同时发送, 也 可以按照一定顺序逐个发送, 以便于特定终端设备接收到该寻呼消息。
特别的, 在将所述终端设备从所述当前窄带重选到所述待重选窄 带上之前, 终端设备还可以与当前小区所属基站进行信息交互, 具体包 括: 终端设备可以在 TA ( Tracking Area,跟踪区域 )更新时, 生成重选请求, 重选请求包括排序结果或待重选窄带的信息; 然后, 向当前小区所属基站发 送重选请求,以便于当前小区所属基站向终端设备发送重选确认信息;最后, 接收当前小区所属基站发送的重选确认信息。 其中, 当重选请求包括排序结 果时, 重选确认信息包括当前小区所属基站根据排序结果选择的待重选窄 带, 当重选请求包括待重选窄带的信息时, 重选确认信息包括当前小区所属 基站对待重选窄带的信息的确认信息。这样一来,虽然终端设备处于空闲态, 但当前小区所属基站可以掌握终端设备在窄带上的分布情况, 当基站需要进 行特定终端设备的寻呼时, 不需要向当前小区中所有窄带发送寻呼消息, 而 是根据所述终端设备在窄带上的分布情况, 直接向相应的窄带发送寻呼消 息, 以便该窄带上特定的终端设备接收到该寻呼消息。 若当前小区中某个终 端设备在预设时间内没有通过 TA更新其窄带停留信息, 说明该终端设备可 能已不在当前小区所属基站的管辖范围, 因此该当前小区所属基站可以删除 该终端设备相应的窄带停留信息, 以便于进行窄带停留信息管理。 所述预设 时间可以是几个 TA更新周期, 如 5或 6个 TA更新周期。
当终端设备对测量结果分析后, 若测量结果达到所述小区间窄带重 选条件, 将所述终端设备从所述当前窄带重选到其他小区相应窄带上。 具体重选方法可以参考现有技术, 本发明不再赘述。
需要说明的是, 上述步骤的个数可以根据实际情况进行相应增减, 步骤 的顺序也可以适当调整, 本发明实施例只是举例说明, 任何熟悉本技术领域 的技术人员在本发明揭露的技术范围内, 可轻易想到变化或替换, 都应涵盖 在本发明的保护范围之内。
示例的, 如图 3所示, 当终端设备处于连接态时, 所述窄带变换为窄 带切换, 所述频带测量方法包括:
5301、 终端设备接收基站发送的测量参数。
所述测量参数可以包括: 第一测量启动阈值或第二测量启动阈值, 用于 指示终端设备对其他窄带的服务质量进行测量。
所述测量参数还可以包括测量上报条件,用来指示终端设备对相应的测 量情况进行上报。 该上报条件可以是时间参数, 也可以是阈值参数。 进一步 的, 基站还可以修改 RRC协议的测量配置: 在测量对象参数中增加小区窄 带配置信息; 添加 NBConfig-Obj参数, 该参数可以指示小区中窄带的位置 信息; 在上报配置参数中, 增加当前小区窄带测量结果上报启动参数来指示 测量上报条件, 如添加 NBConfig-RepEvent参数, 该参数指示当前小区中窄 带的测量结果上报阈值,该阈值的设置可以使终端设备优先触发当前小区中 窄带的测量结果的上报, 该参数也可以与现有的测量结果上报参数相同; 在 数量配置参数中, 可以增加当前小区窄带测量结果滤波系数相关的参数; 在 测量间隙配置参数中, 可以定义一个测量间隙, 终端设备在该测量间隙进行 服务质量的测量; 增加当前小区窄带测量启动阈值参数, 如第一测量启动阈 值或第二测量启动阈值等, 然后, 终端设备对上述新增或修改的参数进行接 收。
5302、 终端设备根据测量参数对终端设备进行配置。
5303、终端设备对当前小区的窄带和 /或其他小区的窄带的服务质量 进行测量。
终端设备对自身所处的当前窄带的服务质量的测量是持续进行的。 终端设备对其他窄带的服务质量进行测量可以是自行启动: 当前窄带的 服务质量小于第一测量启动阈值时, 对其他窄带的服务质量进行测量。 也可 以通过与基站协商启动: 当前窄带的服务质量小于第二测量启动阈值时, 向 当前小区所属基站发送测量启动请求;接收当前小区所属基站发送的启动确 认信息; 对其他窄带的服务质量进行测量。 终端对于其他窄带的测量, 可以 在测量间隙进行, 也可以在终端和基站协商的时刻进行。 当终端设备对其他 窄带测量时, 上下行数据可以停止发送。
终端设备对其他小区窄带的服务质量进行测量可以参考现有技术,这里 不再赘述。
S304、 终端设备对测量结果进行分析。
当终端设备处于连接态时, 终端设备对测量结果只进行筒单的分析, 如判断是否达到上报条件、上报的测量结果内容等等, 主要的分析过程 由当前小区所述基站来完成。
S305、 终端设备获取待切换窄带信息。
终端设备对当前小区中其他窄带的服务质量测量时, 当达到所述测量 上报条件时, 将测量结果发送至所述当前小区所属基站, 以便于所述当 前小区所属基站根据所述测量结果确定待切换窄带, 所述测量结果包 括: 所述当前小区中窄带的服务质量测量结果, 即分别包括当前小区中 当前窄带和其他窄带的服务质量测量结果,同时该测量结果也可以包括 所述其他窄带的位置信息。 然后, 终端设备接收所述当前小区所属基站 发送的待切换窄带信息。
终端设备对其他小区窄带的服务质量测量时, 在达到所述测量上报条 件时, 终端设备将测量结果发送至所述当前小区所属基站, 以便于所述 当前小区所属基站根据所述测量结果确定待切换小区,并向所述待切换 小区所属基站发送切换请求, 所述测量结果包括: 所述当前小区中窄带 的服务质量测量结果和所述其他小区各窄带的服务质量测量结果,所述 切换请求包括所述待切换小区各窄带的服务质量测量结果。 然后, 终端 设备接收所述当前小区所属基站转发的切换请求确认信息,所述切换请 求确认信息由所述待切换小区所属基站生成,包含有所述待切换小区指 定的待切换窄带信息。
S306、 终端设备根据所述待切换窄带信息, 将所述终端设备从所述 当前窄带切换到所述待切换窄带上。
若终端设备接收到的是所述当前小区所属基站生成并发送的待切 换窄带信息,终端设备将所述终端设备从所述当前窄带切换到所述当前 小区所属基站指定的待切换窄带上。
若终端设备接收到的是所述当前小区所属基站转发, 由所述待切换 小区所属基站生成的切换请求确认信息,终端设备需要根据所述切换请 求确认信息中的待切换窄带信息,将所述终端设备从所述当前窄带切换 到所述待切换小区指定的待切换窄带上。 需要说明的是, 上述步骤的个 数可以根据实际情况进行相应增减, 步骤的顺序也可以适当调整, 本发明实 施例只是举例说明, 任何熟悉本技术领域的技术人员在本发明揭露的技术范 围内, 可轻易想到变化或替换, 都应涵盖在本发明的保护范围之内。
本发明实施例提供一种频带测量方法, 应用于一种通信系统, 所述通信 系统包括: 两个以上支持窄带通信的小区, 每个小区中包括至少两个频率不 同的窄带, 窄带的带宽小于等于所述通信系统的系统带宽, 该方法具体包 括:
基站向终端设备发送测量参数,以便于终端设备根据测量参数对终端设 备进行配置。 该基站为终端设备所处的当前小区所属基站。
这样一来, 终端设备工作在支持窄带通信的网络系统中, 终端设备 根据基站配置的参数来进行对服务质量的测量, 同时, 终端设备根据对 服务质量的测量结果的分析,在深度频率选择性衰落等需要切换窄带的 情况出现时,有选择地进行当前小区内部或小区间窄带的变换, 而不盲 目的直接进行小区间的变换, 这样能够使小区间的窄带变换更有针对 性, 避免小区间的无用变换, 从而减少资源浪费; 同时, 小区间或小区 内的有用的窄带变换也使得窄带变换后的终端设备获得较好服务质量。
所述测量参数可以包括: 当前小区的其他窄带的测量启动参数, 具 体为: 第一 RSRP阈值和 /或第二 RSRP阈值, 和第一 RSRQ阈值, 以及其 他小区窄带的测量启动参数, 具体为: 第三 RSRP阈值和 /或第四 RSRP阈 值, 和第二 RSRQ阈值, 当前窄带的重选滞后值和其他窄带的重选偏移值, 重选时间段和停留阈值等等。示例的,所述测量参数可以通过 RRC ( Radio Resource Control, 无线资源控制 )协议的系统消息 3发送给终端设备。
所述测量参数还可以包括: 第一测量启动阈值或第二测量启动阈值, 测 量上报条件等等, 上述参数可通过在增加新的 RRC协议参数或修改原有的 RRC参数进行下发。 示例的, 可以修改 RRC协议的测量配置: 在测量对象 参数中增加小区窄带配置信息; 添加 NBConfig-Obj参数, 该参数可以指示 小区中窄带的位置信息; 在上报配置参数中, 增加当前小区窄带测量结果上 报启动参数来指示测量上报条件, 如添加 NBConfig-RepEvent参数, 该参数 指示当前小区中窄带的测量结果上报阈值,该阈值的设置可以使终端设备优 先触发当前小区中窄带的测量结果的上 4艮,该参数也可以与现有的测量结果 上报参数相同; 在数量配置参数中, 可以增加当前小区窄带测量结果滤波系 数相关的参数; 在测量间隙配置参数中, 可以定义一个测量间隙, 终端设备 在该测量间隙进行服务质量的测量; 增加当前小区窄带测量启动阈值参数, 如第一测量启动阈值或第二测量启动阈值,用于如果当前窄带的服务质量小 于该阈值时, 终端与基站协商启动当前小区窄带测量。
需要说明的是,本发明实施例提供的测量参数以及测量参数的发送方法 只是举例说明, 本发明对此不做限制。
基站的具体动作与终端设备所处的状态相关。 示例的, 当终端设备处于 空闲态时,一方面,基站可以在 TA更新时,接收终端设备发送的重选请求, 该重选请求包括终端设备对当前窄带的 RSRP有效值与其他窄带的 RSRP有 效值进行排序的排序结果;当排序结果中 RSRP有效值最大的窄带为一个时, 基站可以选择 RSRP 有效值最大的窄带作为待重选窄带; 当排序结果中
RSRP有效值最大的窄带有两个以上时, 选择 RSRP有效值最大的窄带中的 频率与当前窄带的频率相差较远的窄带作为待重选窄带; 然后, 基站向终端 设备发送待重选窄带信息,以便于终端设备将终端设备从当前窄带重选到待 重选窄带上。
另一方面, 基站可以在 TA更新时, 接收终端设备发送的重选请求, 重 选请求包括待重选窄带的信息; 向终端设备发送重选确认信息, 重选确认信 息包括对待重选窄带的信息的确认信息。 终端设备在基站确认后, 将终端设 备从当前窄带重选到待重选窄带上。
这样一来, 虽然终端设备处于空闲态, 但基站可以通过动态的 TA更新 掌握各个终端设备在窄带上的分布情况, 当基站需要进行特定终端设备的寻 呼时, 不需要向当前小区中所有窄带发送寻呼消息, 而是根据所述终端设备 在窄带上的分布情况, 直接向相应的窄带发送寻呼消息, 以便该窄带上特定 的终端设备接收到该寻呼消息。若当前小区中某个终端设备在预设时间内没 有通过 TA更新其窄带停留信息, 说明该终端设备可能已不在该基站的管辖 范围, 因此该基站可以删除该终端设备相应的窄带停留信息, 以便于进行窄 带停留信息管理。 所述预设时间可以是几个 TA更新周期, 如 5或 6个 TA 更新周期。 进一步的, 当终端设备需要进行小区间的重选时, 基站可以广播 的其他小区的窄带信息,其他窄带为终端设备所处的当前小区中除当前窄带 之外的窄带。 这样一来, 终端设备可以获取到支持窄带通信的小区的情况, 进行相应的小区间的窄带重选。
示例的, 当终端设备处于连接态时, 如图 4所示, 其中, 基站 A为终 端设备所处的当前小区所属基站,本发明实施例提供的频带测量方法具体包 括:
5401、 基站 A向终端设备发送配置参数。
所述测量参数可以包括: 第一测量启动阈值或第二测量启动阈值, 用于 指示基站对其他窄带的服务质量进行测量。
所述测量参数还可以包括测量上报条件,用来指示终端设备对相应的测 量情况进行上报。 该上报条件可以是时间参数, 也可以是阈值参数, 本发明 对此不做限制。
5402、 终端设备根据配置参数进行配置和测量。
5403、 终端设备向基站 A发送测量结果。
在达到测量上报条件时, 终端设备就向基站 A发送测量结果, 当所述 测量结果包括: 所述当前小区中窄带的服务质量测量结果, 执行步骤 S404和 S405。
5404、 基站 A向终端设备发送待切换窄带信息。
基站 A接收终端设备发送的测量结果后, 根据所述测量结果确定 待切换窄带,以便于所述终端设备从所述当前窄带切换到所述待切换小 区指定的待切换窄带上。 具体的确定方法可以采用排序法, 具体步骤可以 参考上述实施例的步骤 S206和步骤 S207 , 也可以参考现有技术, 本发明对 此不做限制。 5405、 终端设备根据待切换窄带信息, 切换到相应的窄带上。
在本实施例中, 假设当前窄带的服务质量达到其他窄带测量启动条件, 执行步骤 S406。 这样在本实施例中上述步骤 S404 和步骤 S405并未进行。 但本发明只是示例性说明, 并不对此进行限定。
5406、 终端设备向基站 A发送测量启动请求。
S407、 基站 A向终端设备发送启动确认信息。
基站 A接收终端设备发送的测量启动请求后, 向终端设备发送启动确 认信息, 以便于终端设备对其他窄带的服务质量进行测量, 这样达到了基站 A与终端设备协商的目的, 当然, 在特定情况下,基站 A也可以向终端设备 发送拒绝启动信息, 这样终端设备就不会进行其他窄带服务质量的测量。
5408、 终端设备对其他窄带的服务质量进行测量。
步骤 S408的具体步骤可以参考上述实施例中步骤 S303。
5409、 终端设备向基站 A发送测量结果。
当所述测量结果包括:所述当前小区中窄带的服务质量测量结果和 所述其他小区各窄带的服务质量测量结果时,基站 A可以根据测量结果 确定待切换小区, 假设带切换小区所属基站为基站 B。 执行步骤 S410。
5410、 基站 A向基站 B发送切换请求。
5411、 基站 B向基站 A发送切换请求确认信息, 所述切换请求确认 信息由所述待切换小区所属基站即基站 B 生成, 包含有所述待切换小 区指定的待切换窄带信息。
5412、 基站 A向终端设备转发切换请求确认信息。
5413、 终端设备根据切换请求确认信息中的待切换窄带信息, 切换到 相应的窄带上。
终端设备根据所述切换请求确认信息将所述终端设备从所述当前 窄带切换到所述待切换小区指定的待切换窄带上。
在本发明实施例中, 终端设备处于连接态时, 当需要进行小区间 窄带的切换时,终端设备最终切换的窄带是由待切换小区根据该待切换 小区内的窄带情况指定的待切换窄带,这样避免了小区间窄带切换的盲 目性, 使切换更有针对性, 切换后的窄带服务质量较好。
特别的, 上述频带测量方法只是举例说明, 在实际应用中, 具体的步骤 可以根据具体情况进行相应的增减,任何熟悉本技术领域的技术人员在本 发明揭露的技术范围内, 可轻易想到变化或替换, 都应涵盖在本发明的 保护范围之内。
本发明实施例提供的频带测量方法中, 终端设备工作在支持窄带 通信的网络系统中, 终端设备根据对服务质量的测量结果的分析, 在深 度频率选择性衰落等需要切换窄带的情况出现时,有选择地进行当前小 区内部或小区间窄带的变换, 而不盲目的直接进行小区间的变换, 这样 能够使小区间的窄带变换更有针对性,避免小区间的无用变换,从而减 少资源浪费; 同时, 小区间或小区内的有用的窄带变换也使得窄带变换 后的终端设备获得较好服务质量。
本发明实施例提供一种终端设备 50 , 应用于一种通信系统, 通信系统 包括: 两个以上支持窄带通信的小区, 每个小区中包括至少两个频率不同的 窄带, 窄带的带宽小于等于所述通信系统的系统带宽, 如图 5所示, 该终 端设备 50具体包括:
测量单元 501 , 用于对当前小区的窄带和 /或其他小区的窄带的服务 质量进行测量, 所述服务质量包括: 参考信号接收功率 RSRP和参考信号 接收质量 RSRQ, 所述其他小区为终端设备所处的当前小区之外的支持 窄带通信的小区。
分析单元 502, 用于对测量结果进行分析。
变换单元 503 , 用于在所述测量结果满足预设的窄带变换条件时, 对所述终端设备所处窄带进行小区内部或小区间的窄带变换。
这样一来, 终端设备工作在支持窄带通信的网络系统中, 变换单 元根据对服务质量的测量结果的分析,在深度频率选择性衰落等需要切 换窄带的情况出现时, 有选择地进行当前小区内部或小区间窄带的变 换, 而不盲目的直接进行小区间的变换, 这样能够使小区间的窄带变换 更有针对性, 避免小区间的无用变换, 从而减少资源浪费; 同时, 小区 间或小区内的有用的窄带变换也使得窄带变换后的终端设备获得较好 的服务质量。
特别的, 如图 6所示, 该终端设备 50还包括:
第一接收单元 504, 用于接收基站发送的测量参数。 配置单元 505 , 用于根据测量参数对终端设备进行配置。
其中, 第一接收单元 504接收的测量参数可以包括: 第一 RSRP阈值和 /或第二 RSRP阈值, 和第一 RSRQ阈值。
当终端设备处于空闲态时, 所述窄带变换为窄带重选, 测量单元 501 具体用于:
对终端设备所处的当前窄带的服务质量进行持续测量; 若当前窄带 的 RSRP测量值小于所述第一 RSRP阈值,且当前窄带的 RSRQ测量值小于 所述第一 RSRQ阈值, 对其他窄带的服务质量进行测量, 所述其他窄带 为所述终端设备所处的当前小区中除所述当前窄带之外的窄带;或若当 前窄带的 RSRP测量值小于所述第二 RSRP阈值,且当前窄带的 RSRQ测量 值小于所述第一 RSRQ阈值, 对所述其他窄带的服务质量进行测量。
第一接收单元 504接收的测量参数还可以包括: 当前窄带的重选滞后 值、 其他窄带的重选偏移值、 重选时间段和停留阈值, 分析单元 502具体 包括:
对当前窄带的 RSRP有效值与其他窄带的 RSRP有效值进行排序,所述 当前窄带的 RSRP有效值为所述当前窄带的 RSRP测量值与所述当前窄带的 重选滞后值之和, 所述其他窄带的 RSRP有效值为所述其他窄带的 RSRP测 量值与所述其他窄带的重选偏移值之差;
若在所述重选时间段内,至少存在一个所述其他窄带的 RSRP有效值 处于所述当前窄带的 RSRP有效值之前, 且所述终端设备在所述当前窄带 停留的时间大于所述停留阈值, 判断所述当前小区中窄带的服务质量满 足预设的窄带变换条件。
当所述当前小区中窄带的服务质量满足预设的窄带变换条件时, 所述分析单元 502还用于:当所述排序结果中 RSRP有效值最大的窄带为 一个时, 选择所述 RSRP有效值最大的窄带作为待重选窄带; 当所述排 序结果中 RSRP有效值最大的窄带有两个以上时,选择所述 RSRP有效 值最大的窄带中的频率与所述当前窄带的频率相差较远的窄带作为待 重选窄带。
所述变换单元 503 用于将所述终端设备从所述当前窄带重选到所 述待重选窄带上。 当终端设备处于空闲态时, 如图 7所示, 所述终端设备 50还包括: 生成单元 506 , 用于在跟踪区域 TA更新时, 生成重选请求, 所述 重选请求包括所述排序结果或所述待重选窄带的信息;
第一发送单元 507 , 用于向当前小区所属基站发送所述重选请求, 以便于所述当前小区所属基站向所述终端设备发送重选确认信息;
所述第一接收单元 504 还用于接收所述当前小区所属基站发送的 所述重选确认信息;
其中, 当所述重选请求包括所述排序结果时, 所述重选确认信息 包括所述当前小区所属基站根据所述排序结果选择的待重选窄带,当所 述重选请求包括所述待重选窄带的信息时,所述重选确认信息包括所述 当前小区所属基站对所述待重选窄带的信息的确认信息。
第一获取单元 508 ,用于获取当前小区所属基站广播的所述其他小 区的窄带信息。
第二获取单元 509 , 用于获取初级同步信号 PSS 和次级同步信号 SSS携带的所述其他小区的窄带信息,或获取物理小区标识 PCI携带的 所述其他小区的窄带信息。
当其他小区为比所述当前小区的优先级较高或者较低的异频或异 系统小区时, 分析单元 502具体用于: 根据所述小区重选参数, 判断所述 其他小区的服务质量是否满足小区重选条件。
当其他小区为同频小区或具有相同优先级的异频小区时,分析单元 502 具体用于:
获取所述当前小区和所述其他小区的排序参数; 根据所述排序参 数, 对所述当前小区和所述其他小区进行排序; 根据排序结果, 判断所 述其他小区的服务质量是否满足小区重选条件。
进一步的, 第一接收单元 504接收的测量参数还可以包括: 第一测量启 动阈值, 当终端设备处于连接态时, 测量单元 501 具体用于: 对终端设备 所处的当前窄带的服务质量进行持续测量; 在当前窄带的服务质量小于 所述第一测量启动阈值时,对所述其他窄带的服务质量进行测量。 所述 其他窄带为所述终端设备所处的当前小区中除所述当前窄带之外的窄 带。
第一接收单元 504接收的测量参数还可以包括: 第二测量启动阈值, 当所述终端设备处于连接态时, 所述测量单元 501具体用于: 对终端设 备所处的当前窄带的服务质量进行持续测量; 当前窄带的服务质量小于 第二测量启动阈值时, 向所述当前小区所属基站发送测量启动请求;接 收所述当前小区所属基站发送的启动确认信息;对所述其他窄带的服务 质量进行测量。
当所述测量参数包括测量上报条件时, 所述第一发送单元 507 还 用于:
在达到所述测量上报条件时, 将测量结果发送至所述当前小区所 属基站,以便于所述当前小区所属基站根据所述测量结果确定待切换窄 带, 所述测量结果包括: 所述当前小区中窄带的服务质量测量结果。
所述第一发送单元 507 还用于: 在达到所述测量上报条件时, 将 测量结果发送至所述当前小区所属基站,以便于所述当前小区所属基站 根据所述测量结果确定待切换窄带, 所述测量结果包括: 所述当前小区 中窄带的服务质量测量结果;
所述第一接收单元 504 还用于接收所述当前小区所属基站发送的 待切换窄带信息。
所述变换单元 502 用于根据所述待切换窄带信息, 将所述终端设 备从所述当前窄带切换到所述待切换窄带上。
所述第一发送单元 507还可以用于: 在达到所述测量上报条件时, 将测量结果发送至所述当前小区所属基站,以便于所述当前小区所属基 站根据所述测量结果确定待切换小区,并向所述待切换小区所属基站发 送切换请求, 所述测量结果包括: 所述当前小区中窄带的服务质量测量 结果和所述其他小区各窄带的服务质量测量结果,所述切换请求包括所 述待切换小区各窄带的服务质量测量结果; 此时, 所述第一接收单元 504还用于接收所述当前小区所属基站转发的切换请求确认信息, 所述 切换请求确认信息由所述待切换小区所属基站生成,包含有所述待切换 小区指定的待切换窄带信息。
所述变换单元 502 还用于根据所述待切换窄带信息, 将所述终端 设备从所述当前窄带切换到所述待切换窄带上。
本发明实施例提供的终端设备, 工作在支持窄带通信的网络系统 中, 变换单元根据对服务质量的测量结果的分析, 在深度频率选择性衰 落等需要切换窄带的情况出现时,有选择地进行当前小区内部或小区间 窄带的变换, 而不盲目的直接进行小区间的变换, 这样能够使小区间的 窄带变换更有针对性, 避免小区间的无用变换, 从而减少资源浪费; 同 时,小区间或小区内的有用的窄带变换也使得窄带变换后的终端设备获 得较好服务质量。 本发明实施例提供一种基站, 应用于一种通信系统, 所述通信系 统包括: 两个以上支持窄带通信的小区,每个小区中包括至少两个频率 不同的窄带, 所述窄带的带宽小于等于所述通信系统的系统带宽, 所述 基站具体包括:
第二发送单元, 用于向终端设备发送测量参数, 以便于终端设备根 据所述测量参数对所述终端设备进行配置。
这样一来, 终端设备通过第二发送单元发送的测量参数进行配置, 根据对服务质量的测量结果进行相应的分析,在深度频率选择性衰落等 需要切换窄带的情况出现时,有选择地进行当前小区内部或小区间窄带 的变换, 而不盲目的直接进行小区间的变换, 这样能够使小区间的窄带 变换更有针对性, 避免小区间的无用变换, 从而减少资源浪费; 同时, 小区间或小区内的有用的窄带变换也使得窄带变换后的终端设备获得 较好服务质量。
进一步的, 所述基站还包括: 第二接收单元, 用于在跟踪区域 TA 更新时, 接收终端设备发送的重选请求, 所述重选请求包括终端设备对 当前窄带的 RSRP有效值与其他窄带的 RSRP有效值进行排序的所述排序 结果。
选择单元,用于在所述排序结果中 RSRP有效值最大的窄带为一个 时, 选择所述 RSRP有效值最大的窄带作为待重选窄带。
所述选择单元还用于在所述排序结果中 RSRP 有效值最大的窄带 有两个以上时,选择所述 RSRP有效值最大的窄带中的频率与所述当前 窄带的频率相差较远的窄带作为待重选窄带。
所述第二发送单元还用于向所述终端设备发送所述待重选窄带信 息,以便于所述终端设备将所述终端设备从所述当前窄带重选到所述待 重选窄带上。
当所述终端设备处于空闲态时, 所述第二接收单元还用于在跟踪 区域 TA更新时, 接收所述终端设备发送的重选请求, 所述重选请求包 括所述待重选窄带的信息;所述第二发送单元还用于向所述终端设备发 送重选确认信息,所述重选确认信息包括对所述待重选窄带的信息的确 认信息。
所述设备还包括: 广播单元, 用于广播的所述其他小区的窄带信 息,所述其他窄带为所述终端设备所处的当前小区中除所述当前窄带之 外的窄带。
当所述终端设备处于连接态时, 所述第二接收单元还用于接收所 述终端设备发送的测量启动请求;所述第二发送单元还用于向所述终端 设备发送启动确认信息,以便于所述终端设备对所述其他窄带的服务质 量进行测量。
所述基站还包括: 第一确定单元, 用于根据所述测量结果确定待 切换窄带;所述第二发送单元还用于向所述待切换小区所属基站发送切 换请求, 所述切换请求包括所述待切换小区各窄带的服务质量测量结 果。
所述第二接收单元还用于接收所述待切换小区所属基站发送的切 换请求确认信息,所述切换请求确认信息由所述待切换小区所属基站生 成, 包含有所述待切换小区指定的待切换窄带信息。
所述第二发送单元还用于向所述终端设备转发所述切换请求确认 信息,以便于所述终端设备根据所述切换请求确认信息将所述终端设备 从所述当前窄带切换到所述待切换小区指定的待切换窄带上。
所述基站还包括: 第二确定单元, 用于根据所述测量结果确定待 切换小区, 所述测量结果包括: 所述当前小区中窄带的服务质量测量结 果和所述其他小区各窄带的服务质量测量结果;所述第二接收单元还用 于接收所述终端设备发送的测量结果;所述第二发送单元还用于向所述 终端设备发送待切换小区信息,以便于所述终端设备根据所述待切换小 区信息向所述待切换小区所属基站发送切换请求,将所述终端设备从所 述当前窄带切换到所述待切换小区指定的待切换窄带上。 本发明实施例提供一种通信系统, 应用于一种通信系统, 所述通 信系统包括: 两个以上支持窄带通信的小区,每个小区中包括至少两个 频率不同的窄带, 所述窄带的带宽小于等于所述通信系统的系统带宽, 所述通信系统包括:
本发明实施例提供的任意一种终端设备; 本发明实施例提供的任 意一种基站。
特别的, 该通信系统中的小区还可以支持宽带, 示例的, 通信系 统中的小区下行频带的分布如图 9 所示, 在现有的 PDCCH ( physical downlink control channel , 物理下行控制信道) 的基础上, 增力口了多个 频率不同, 等带宽的, 依次排列的窄带。
这样一来, 终端设备工作在支持窄带通信的网络系统中, 该系统 中的小区也支持宽带, 保证现有技术中一些功能的正常实现。
所属领域的技术人员可以清楚地了解到, 为描述的方便和筒洁, 上述描述的系统,设备和单元的具体工作过程, 可以参考前述方法实施 例中的对应过程, 在此不再赘述。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统, 设 备和方法, 可以通过其它的方式实现。 例如, 以上所描述的设备实施例 仅仅是示意性的, 例如, 所述单元的划分, 仅仅为一种逻辑功能划分, 实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者 可以集成到另一个系统, 或一些特征可以忽略, 或不执行。 另一点, 所 显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些 接口, 设备或单元的间接耦合或通信连接, 可以是电性, 机械或其它的 形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开 的,作为单元显示的部件可以是或者也可以不是物理单元, 即可以位于 一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选 择其中的部分或者全部单元来实现本实施例方案的目的。
另外, 在本发明各个实施例中的各功能单元可以集成在一个处理 单元中, 也可以是各个单元单独物理包括,也可以两个或两个以上单元 集成在一个单元中。上述集成的单元既可以采用硬件的形式实现, 也可 以采用硬件加软件功能单元的形式实现。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分步骤 可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机可读 取存储介质中, 该程序在执行时, 执行包括上述方法实施例的步骤; 而前述 的存储介质包括: ROM、 RAM , 磁碟或者光盘等各种可以存储程序代码的 介质。 以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不 局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可轻易想到变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本 发明的保护范围应以所述权利要求的保护范围为准。

Claims

权利要求 书
1、 一种频带测量方法, 其特征在于, 应用于一种通信系统, 所述通 信系统包括: 两个以上支持窄带通信的小区, 每个小区中包括至少两个 频率不同的窄带, 所述窄带的带宽小于等于所述通信系统的系统带宽, 所述方法具体包括:
对当前小区的窄带和 /或其他小区的窄带的服务质量进行测量, 所述 服务质量包括: 参考信号接收功率 RSRP和参考信号接收质量 RSRQ, 所述 其他小区为终端设备所处的当前小区之外的支持窄带通信的小区;
对测量结果进行分析;
若所述测量结果满足预设的窄带变换条件, 将所述终端设备从所述 当前窄带变换到所述当前小区或所述其他小区中相应的窄带上。
2、 根据权利要求 1所述的方法, 其特征在于, 在对当前小区的窄带 和 /或其他小区的窄带的服务质量进行测量前, 所述方法还包括:
接收基站发送的测量参数;
根据所述测量参数对所述终端设备进行配置。
3、 根据权利要求 2所述的方法, 其特征在于, 当所述终端设备处于 空闲态时, 所述窄带变换为窄带重选, 所述测量参数包括: 第一 RSRP阈 值和 /或第二 RSRP阈值, 和第一 RSRQ阈值,
所述对当前小区的窄带和 /或其他小区的窄带的服务质量进行测量包 括:
对终端设备所处的当前窄带的服务质量进行持续测量;
若当前窄带的 RSRP测量值小于所述第一 RSRP阈值,且当前窄带的 RSRQ 测量值小于所述第一 RSRQ 阈值, 对其他窄带的服务质量进行测量, 所述 其他窄带为所述终端设备所处的当前小区中除所述当前窄带之外的窄 带; 或
若当前窄带的 RSRP测量值小于所述第二 RSRP阈值,且当前窄带的 RSRQ 测量值小于所述第一 RSRQ阈值, 对所述其他窄带的服务质量进行测量。
4、 根据权利要求 3所述的方法, 其特征在于, 所述测量参数包括: 当前窄带的重选滞后值、 其他窄带的重选偏移值、 重选时间段和停留阈值, 所述对测量结果进行分析包括:
对当前窄带的 RSRP有效值与其他窄带的 RSRP有效值进行排序,所述当 前窄带的 RSRP有效值为所述当前窄带的 RSRP测量值与所述当前窄带的重选 滞后值之和, 所述其他窄带的 RSRP有效值为所述其他窄带的 RSRP测量值与 所述其他窄带的重选偏移值之差;
若在所述重选时间段内,至少存在一个所述其他窄带的 RSRP有效值处 于所述当前窄带的 RSRP有效值之前, 且所述终端设备在所述当前窄带停留 的时间大于所述停留阈值, 判断所述当前小区中窄带的服务质量满足预设 的窄带变换条件。
5、 根据权利要求 4所述的方法, 其特征在于, 当所述当前小区中窄 带的服务质量满足预设的窄带变换条件时, 所述对测量结果进行分析还 包括:
当所述排序结果中 RSRP 有效值最大的窄带为一个时, 选择所述 RSRP有效值最大的窄带作为待重选窄带;
当所述排序结果中 R S R P有效值最大的窄带有两个以上时,选择所述 RSRP 有效值最大的窄带中的频率与所述当前窄带的频率相差较远的窄 带作为待重选窄带;
若所述测量结果满足预设的窄带变换条件, 对所述终端设备所处窄 带进行小区内部或小区间的窄带变换包括:
将所述终端设备从所述当前窄带重选到所述待重选窄带上。
6、 根据权利要求 5所述的方法, 其特征在于, 在所述将所述终端设 备从所述当前窄带重选到所述待重选窄带上之前, 所述方法还包括:
在跟踪区域 TA更新时, 生成重选请求, 所述重选请求包括所述排序 结果或所述待重选窄带的信息;
向当前小区所属基站发送所述重选请求, 以便于所述当前小区所属 基站向所述终端设备发送重选确认信息;
接收所述当前小区所属基站发送的所述重选确认信息;
其中, 当所述切换重选请求包括所述排序结果时, 所述切换重选确 认信息包括所述当前小区所属基站根据所述排序结果选择的待切换重选 窄带, 当所述切换重选请求包括所述待切换重选窄带的信息时, 所述切 换重选确认信息包括所述当前小区所属基站对所述待切换重选窄带的信 息的确认信息。
7、 根据权利要求 3至 6任意权利要求所述的方法, 其特征在于, 所 述测量参数包括: 第三 RSRP阈值和 /或第四 RSRP阈值,和第二 RSRQ阈值, 所述第三 RSRP阈值小于等于所述第一 RSRP阈值, 所述第四 RSRP阈值小于 等于所述第二 RSRP阈值,所述第二 RSRQ阈值小于等于所述第一 RSRQ阈值, 所述对当前小区的窄带和 /或其他小区的窄带的服务质量进行测量还 包括:
若当前窄带的 RSRP测量值大于等于所述第三 RSRP阈值,且当前窄带的 RSRQ测量值大于等于所述第二 RSRQ阈值,对所述其他小区窄带的服务质 量进行测量; 或
若当前窄带的 RSRP测量值大于等于所述第四 RSRP阈值,且当前窄带的 RSRQ测量值大于等于所述第二 RSRQ阈值,对所述其他小区窄带的服务质 量进行测量。
8、 根据权利要求 7所述的方法, 其特征在于, 在对所述其他小区窄 带的服务质量进行测量前, 所述方法还包括:
获取当前小区所属基站广播的所述其他小区的窄带信息。
9、 根据权利要求 7所述的方法, 其特征在于, 在对所述其他小区窄 带的服务质量进行测量前, 所述方法还包括:
获取初级同步信号 PSS和次级同步信号 SSS携带的所述其他小区的 窄带信息, 或
获取物理小区标识 PCI携带的所述其他小区的窄带信息。
10、 根据权利要求 8或 9所述的方法, 其特征在于,
所述若所述测量结果满足预设的窄带变换条件, 对所述终端设备所 处窄带进行小区内部或小区间的窄带变换包括:
若所述其他小区窄带的服务质量满足小区窄带重选条件, 将所述终 端设备从所述当前窄带重选到其他小区中相应的窄带上。
11、 根据权利要求 10所述的方法, 其特征在于, 当所述其他小区为 比所述当前小区的优先级较高或者较低的异频或异系统小区时, 所述对 测量结果进行分析包括:
根据所述小区重选参数, 判断所述其他小区的服务质量是否满足所述 小区重选条件。
12、 根据权利要求 11 所述的方法, 其特征在于, 小区 K 为所述其 他小区中的任意小区, 窄带 n为所述小区 K中的任意窄带, 所述小区重 选参数满足:
Srxlev=F ( Srxlev n ) ;
Squal=F ( Squal n ) ; ^"中, S xl V n—Qrxlevmeas n - ( Qrxlevmin+Qrxlevminoffset ) "Pcompensation?
Squal n—QqUalmeas n"
Figure imgf000031_0001
·>
所述 Srxlev为小区 K的 RSRP重选参数,所述 Squal为小区 K的 RSRQ 重选参数, 所述 (¾χ1ενη^ η为所述窄带 η的 RSRP测量值, 所述 Qqualmeas n为 所述窄带 n的 RSRQ测量值, 所述 Qndevmm为小区 K预设的最小接收功率 等级, 所述 Qrxlevminffset为所述 Qrxlevmin的重选偏移值, 所述 P∞mpenSati。n为 max(PEMAX-PpowerClass) , 其中, 所述 PEMAX为终端设备在小区 K中的最大上行发 射功率,所述 ΡΡ Class为由所述终端设备的类别确定的最大射频输出功率, 所 述 Qqualmin为小区 K预设的最小质量等级, 所述 Qqualmmffset为所述 Qqualmm的重 选偏移值, F ( ) 表示求括号中参数的最大值或最小值, 或者均值。
13、 根据权利要求 1 1 所述的方法, 其特征在于, 小区 K 为所述其 他小区中的任意小区, 窄带 n为所述小区 K中的任意窄带, 所述小区重 选参数满足:
Qrxlevmeas- F ( Qrxlevmeas n )
Qqualmeas— F ( Qqualmeas n ) ;
SrxleV ― Qrxlevmeas" ( Qrxlevmin+Qrxlevminoffset ) " Pcompensation ·>
Squal Qqualmeas"
Figure imgf000031_0002
所述 Srxlev为小区 K的 RSRP重选参数,所述 Squal为小区 K的 RSRQ 重选参数, 所述 ¾χ1ενηι^ η为所述窄带 n的 RSRP测量值, 所述 Qqualmeas n为所 述窄带 n的 RSRQ测量值, 所述 Q ev为小区 K预设的最小接收功率等 级, 所述 Qndevmhrffeet为所述 Qrxlevmin的重选偏移值, 所述 PmpenSati。n为 max(PEMAX-PpowerClass) , 其中, 所述 PEMAX为终端设备在小区 K中的最大上行发 射功率,所述 ΡΡ Class为由所述终端设备的类别确定的最大射频输出功率, 所 述 Qqualmin为小区 K预设的最小质量等级, 所述 Qqualmmffset为所述 Qqualmm的重 选偏移值, F ( ) 表示求括号中参数的最大值或最小值, 或者均值。
14、 根据权利要求 10所述的方法, 其特征在于, 当所述其他小区为 同频小区或与所述当前小区具有相同优先级的异频小区时, 在对所述其 他小区窄带的服务质量进行测量之后, 所述对测量结果进行分析包括: 获取所述当前小区和所述其他小区的排序参数;
根据所述排序参数, 对所述当前小区和所述其他小区进行排序; 根据排序结果,判断所述其他小区的服务质量是否满足所述小区重选 条件。
15、 根据权利要求 14所述的方法, 其特征在于, 小区 M为所述同频 小区或与所述当前小区具有相同优先级的异频小区中的任意小区,小区 S 为所述当前小区, 窄带 X为所述小区 M中的任意窄带, 窄带 i为所述小 区 S中的任意窄带, 所述排序参数满足:
RS=F ( RS i ) ;
RM=F ( RM x ) ;
其中, RS i=Qmeas , S i+Qhyst;
RM x=Qmeas , M x+Qoffset;
所述 RS为所述小区 S的排序参数, 所述 RM为所述小区 M的排序 参数, 所述 Qmeas , S i为所述窄带 i的 RSRP测量值, 所述 Qmeas , M x 为所述窄带 x的 RSRP测量值, 所述 Qhyst为所述小区 S重选滞后值, 所 述 Qoffset为所述小区 M的重选偏移值, F ( ) 表示求括号中参数的最大 值或最小值, 或者均值。
16、 根据权利要求 14所述的方法, 其特征在于, 小区 M为所述同频 小区或与所述当前小区具有相同优先级的异频小区中的任意小区,小区 S 为所述当前小区, 窄带 X为所述小区 M中的任意窄带, 窄带 i为所述小 区 S中的任意窄带, 所述排序参数满足:
Qmeas , S =fn ( Qmeas , Si ) ;
Qmeas , M =fn ( Qmeas , Mx ) ;
Rs =Qmeas , S +Qhyst;
Rn =Qmeas , M +Qoffset;
所述 RS为所述小区 S的排序参数, 所述 RM为所述小区 M的排序 参数, 所述 Qmeas , S i为所述窄带 i的 RSRP测量值, 所述 Qmeas , M x 为所述窄带 x的 RSRP测量值, 所述 Qhyst为所述小区 S重选滞后值, 所 述 Qoffset为所述小区 M的重选偏移值, F ( ) 表示求括号中参数的最大 值或最小值, 或者均值。
17、 根据权利要求 2 所述的方法, 其特征在于, 当所述终端设备处 于连接态时, 所述窄带变换为窄带切换, 所述测量参数包括: 第一测量 启动阈值, 所述对当前小区的窄带和 /或其他小区的窄带的服务质量进行 测量包括:
对终端设备所处的当前窄带的服务质量进行持续测量;
在当前窄带的服务质量小于所述第一测量启动阈值时, 对所述其他窄 带的服务质量进行测量。
18、 根据权利要求 2 所述的方法, 其特征在于, 当所述终端设备处 于连接态时, 所述窄带变换为窄带切换, 所述测量参数包括: 第二测量 启动阈值, 所述对当前小区的窄带和 /或其他小区的窄带的服务质量进行 测量包括:
对终端设备所处的当前窄带的服务质量进行持续测量;
当所述当前窄带的服务质量小于第二测量启动阈值时, 向所述当前小 区所属基站发送测量启动请求;
接收所述当前小区所属基站发送的启动确认信息;
对所述其他窄带的服务质量进行测量。
19、 根据权利要求 17或 18所述的方法, 其特征在于, 所述测量参 数包括测量上报条件, 所述方法还包括:
在达到所述测量上报条件时, 将测量结果发送至所述当前小区所属 基站, 以便于所述当前小区所属基站根据所述测量结果确定待切换窄带, 所述测量结果包括: 所述当前小区中窄带的服务质量测量结果;
接收所述当前小区所属基站发送的待切换窄带信息;
所述若所述测量结果满足预设的窄带变换条件, 对所述终端设备所 处窄带进行小区内部或小区间的窄带变换包括:
根据所述待切换窄带信息, 将所述终端设备从所述当前窄带切换到 所述待切换窄带上。
20、 根据权利要求 17或 18所述的方法, 其特征在于, 所述测量参 数包括测量上报条件, 所述方法还包括:
在达到所述测量上报条件时, 将测量结果发送至所述当前小区所属 基站, 以便于所述当前小区所属基站根据所述测量结果确定待切换小区, 并向所述待切换小区所属基站发送切换请求, 所述测量结果包括: 所述 当前小区中窄带的服务质量测量结果和所述其他小区各窄带的服务质量 测量结果, 所述切换请求包括所述待切换小区各窄带的服务质量测量结 果;
接收所述当前小区所属基站转发的切换请求确认信息, 所述切换请 求确认信息由所述待切换小区所属基站生成, 包含有所述待切换小区指 定的待切换窄带信息;
所述若所述测量结果满足预设的窄带变换条件, 对所述终端设备所 处窄带进行小区内部或小区间的窄带变换包括:
根据所述待切换窄带信息, 将所述终端设备从所述当前窄带切换到 所述待切换小区指定的待切换窄带上。
21、 一种频带测量方法, 其特征在于, 应用于一种通信系统, 所述 通信系统包括: 两个以上支持窄带通信的小区, 每个小区中包括至少两 个频率不同的窄带, 所述窄带的带宽小于等于所述通信系统的系统带宽, 所述窄带的带宽小于等于所述通信系统的系统带宽, 所述方法具体包括: 向终端设备发送测量参数, 以便于终端设备根据所述测量参数对所 述终端设备进行配置。
22、 根据权利要求 21所述的方法, 其特征在于, 当所述终端设备处 于空闲态时, 所述方法还包括:
在跟踪区域 TA更新时, 接收终端设备发送的重选请求, 所述重选请 求包括所述终端设备对当前窄带的 RSRP有效值与其他窄带的 RSRP有效值 进行排序的排序结果;
当所述排序结果中 RSRP 有效值最大的窄带为一个时, 选择所述 RSRP有效值最大的窄带作为待重选窄带;
当所述排序结果中 R S R P有效值最大的窄带有两个以上时,选择所述 RSRP 有效值最大的窄带中的频率与所述当前窄带的频率相差较远的窄 带作为待重选窄带;
向所述终端设备发送所述待重选切换窄带信息, 以便于所述终端设 备将所述终端设备从所述当前窄带重选切换到所述待切换重选窄带上。
23、 根据权利要求 22所述的方法, 其特征在于, 所述方法还包括: 在跟踪区域 TA更新时, 接收所述终端设备发送的重选请求, 所述重 选请求包括所述待重选窄带的信息;
向所述终端设备发送重选确认信息, 所述重选确认信息包括对所述 待重选窄带的信息的确认信息。
24、 根据权利要求 22或 23所述的方法, 其特征在于, 所述方法还 包括:
广播的所述其他小区的窄带信息, 所述其他窄带为所述终端设备所 处的当前小区中除所述当前窄带之外的窄带。
25、 根据权利要求 21所述的方法, 其特征在于, 当所述终端设备处 于连接态时, 所述方法还包括: 接收所述终端设备发送的测量启动请求;
向所述终端设备发送启动确认信息, 以便于所述终端设备对所述其 他窄带的服务质量进行测量。
26、 根据权利要求 25所述的方法, 其特征在于, 所述方法还包括: 接收所述终端设备发送的测量结果, 所述测量结果包括: 所述当前 小区中窄带的服务质量测量结果;
根据所述测量结果确定待切换窄带;
向所述终端设备发送待切换窄带信息, 以便于所述终端设备从所述 当前窄带切换到所述待切换小区指定的待切换窄带上。
27、 根据权利要求 25所述的方法, 其特征在于, 所述方法还包括: 接收所述终端设备发送的测量结果, 所述测量结果包括: 所述当前 小区中窄带的服务质量测量结果和所述其他小区各窄带的服务质量测量 结果;
根据所述测量结果确定待切换小区;
向所述待切换小区所属基站发送切换请求, 所述切换请求包括所述 待切换小区各窄带的服务质量测量结果; 接收所述待切换小区所属基站 发送的切换请求确认信息, 所述切换请求确认信息由所述待切换小区所 属基站生成, 包含有所述待切换小区指定的待切换窄带信息;
向所述终端设备转发所述切换请求确认信息, 以便于所述终端设备 根据所述切换请求确认信息将所述终端设备从所述当前窄带切换到所述 待切换小区指定的待切换窄带上。
28、 一种终端设备, 其特征在于, 应用于一种通信系统, 所述通信 系统包括: 两个以上支持窄带通信的小区, 每个小区中包括至少两个频 率不同的窄带, 所述窄带的带宽小于等于所述通信系统的系统带宽, 所 述终端设备具体包括:
测量单元, 用于对当前小区的窄带和 /或其他小区的窄带的服务质量 进行测量, 所述服务质量包括: 参考信号接收功率 RSRP和参考信号接收质 量 RSRQ, 所述其他小区为终端设备所处的当前小区之外的支持窄带通信 的小区;
分析单元, 用于对测量结果进行分析;
变换单元, 用于在所述测量结果满足预设的窄带变换条件时, 对所 述终端设备所处窄带进行小区内部或小区间的窄带变换。
29、 根据权利要求 28所述的设备, 其特征在于, 所述设备还包括: 第一接收单元, 用于接收基站发送的测量参数;
配置单元, 用于根据所述测量参数对所述终端设备进行配置。
30、 根据权利要求 29所述的设备, 其特征在于, 当所述终端设备处 于空闲态时, 所述窄带变换为窄带重选, 所述测量参数包括: 第一 RSRP 阈值和 /或第二 RSRP阈值, 和第一 RSRQ阈值, 所述测量单元具体用于: 对终端设备所处的当前窄带的服务质量进行持续测量;
若当前窄带的 RSRP测量值小于所述第一 RSRP阈值,且当前窄带的 RSRQ 测量值小于所述第一 RSRQ 阈值, 对其他窄带的服务质量进行测量, 所述 其他窄带为所述终端设备所处的当前小区中除所述当前窄带之外的窄 带; 或
若当前窄带的 RSRP测量值小于所述第二 RSRP阈值,且当前窄带的 RSRQ 测量值小于所述第一 RSRQ阈值, 对所述其他窄带的服务质量进行测量。
31、 根据权利要求 30所述的设备, 其特征在于, 所述测量参数包括: 当前窄带的重选滞后值、 其他窄带的重选偏移值、 重选时间段和停留阈值, 所述分析单元具体包括:
对当前窄带的 RSRP有效值与其他窄带的 RSRP有效值进行排序,所述当 前窄带的 RSRP有效值为所述当前窄带的 RSRP测量值与所述当前窄带的重选 滞后值之和, 所述其他窄带的 RSRP有效值为所述其他窄带的 RSRP测量值与 所述其他窄带的重选偏移值之差;
若在所述重选时间段内,至少存在一个所述其他窄带的 RSRP有效值处 于所述当前窄带的 RSRP有效值之前, 且所述终端设备在所述当前窄带停留 的时间大于所述停留阈值, 判断所述当前小区中窄带的服务质量满足预设 的窄带变换条件。
32、 根据权利要求 31所述的设备, 其特征在于, 当所述当前小区中 窄带的服务质量满足预设的窄带变换条件时, 所述分析单元还用于:
当所述排序结果中 RSRP 有效值最大的窄带为一个时, 选择所述 RSRP有效值最大的窄带作为待重选窄带;
当所述排序结果中 R S R P有效值最大的窄带有两个以上时,选择所述 RSRP 有效值最大的窄带中的频率与所述当前窄带的频率相差较远的窄 带作为待重选窄带;
所述变换单元用于将所述终端设备从所述当前窄带重选到所述待重 选窄带上。
33、 根据权利要求 32所述的设备, 其特征在于, 所述设备还包括: 生成单元, 用于在跟踪区域 TA更新时, 生成重选请求, 所述重选请 求包括所述排序结果或所述待重选窄带的信息;
第一发送单元, 用于向当前小区所属基站发送所述重选请求, 以便 于所述当前小区所属基站向所述终端设备发送重选确认信息;
所述第一接收单元还用于接收所述当前小区所属基站发送的所述重 选确认信息;
其中, 当所述重选请求包括所述排序结果时, 所述重选确认信息包 括所述当前小区所属基站根据所述排序结果选择的待重选窄带, 当所述 重选请求包括所述待重选窄带的信息时, 所述重选确认信息包括所述当 前小区所属基站对所述待重选窄带的信息的确认信息。
34、 根据权利要求 33所述的设备, 其特征在于, 所述设备还包括: 第一获取单元, 用于获取当前小区所属基站广播的所述其他小区的 窄带信息。
35、 根据权利要求 33所述的设备, 其特征在于, 所述设备还包括: 第二获取单元, 用于获取初级同步信号 PSS和次级同步信号 SSS携 带的所述其他小区的窄带信息, 或
获取物理小区标识 PCI携带的所述其他小区的窄带信息。
36、 根据权利要求 34或 35所述的设备, 其特征在于, 所述变换单 元具体用于:
若所述其他小区窄带的服务质量满足小区窄带重选条件, 将所述终 端设备从所述当前窄带重选到其他小区中相应的窄带上。
37、 根据权利要求 36所述的设备, 其特征在于, 当所述其他小区为 比所述当前小区的优先级较高或者较低的异频或异系统小区时, 所述分 析单元具体用于:
根据所述小区重选参数, 判断所述其他小区的服务质量是否满足小区 重选条件。
38、 根据权利要求 36所述的设备, 其特征在于, 当所述其他小区为 同频小区或具有相同优先级的异频小区时, 所述分析单元具体用于: 获取所述当前小区和所述其他小区的排序参数;
根据所述排序参数, 对所述当前小区和所述其他小区进行排序; 根据排序结果, 判断所述其他小区的服务质量是否满足小区重选条 件。
39、 根据权利要求 29所述的设备, 其特征在于, 当所述终端设备处 于连接态时, 所述窄带变换为窄带切换, 所述测量参数包括: 第一测量 启动阈值, 所述测量单元具体用于:
对终端设备所处的当前窄带的服务质量进行持续测量;
在当前窄带的服务质量小于所述第一测量启动阈值时, 对所述其他窄 带的服务质量进行测量。
40、 根据权利要求 29所述的设备, 其特征在于, 当所述终端设备处 于连接态时, 所述窄带变换为窄带切换, 所述测量参数包括: 第二测量 启动阈值, 所述测量单元具体用于:
对终端设备所处的当前窄带的服务质量进行持续测量;
当所述当前窄带的服务质量小于第二测量启动阈值时, 向所述当前小 区所属基站发送测量启动请求;
接收所述当前小区所属基站发送的启动确认信息;
对所述其他窄带的服务质量进行测量。
41、 根据权利要求 39或 40所述的设备, 其特征在于, 所述测量参 数包括测量上报条件,
所述第一发送单元还用于: 在达到所述测量上报条件时, 将测量结 果发送至所述当前小区所属基站, 以便于所述当前小区所属基站根据所 述测量结果确定待切换窄带, 所述测量结果包括: 所述当前小区中窄带 的服务质量测量结果;
所述第一接收单元还用于接收所述当前小区所属基站发送的待切换 窄带信息。
所述变换单元用于根据所述待切换窄带信息, 将所述终端设备从所 述当前窄带切换到所述待切换窄带上。
42、 根据权利要求 39或 40所述的设备, 其特征在于, 所述测量参 数包括测量上报条件,
所述第一发送单元还用于: 在达到所述测量上报条件时, 将测量结 果发送至所述当前小区所属基站, 以便于所述当前小区所属基站根据所 述测量结果确定待切换小区, 并向所述待切换小区所属基站发送切换请 求, 所述测量结果包括: 所述当前小区中窄带的服务质量测量结果和所 述其他小区各窄带的服务质量测量结果, 所述切换请求包括所述待切换 小区各窄带的服务质量测量结果;
所述第一接收单元还用于
接收所述当前小区所属基站转发的切换请求确认信息, 所述切换请 求确认信息由所述待切换小区所属基站生成, 包含有所述待切换小区指 定的待切换窄带信息;
所述变换单元还用于根据所述待切换窄带信息, 将所述终端设备从 所述当前窄带切换到所述待切换窄带上。
43、 一种基站, 其特征在于, 应用于一种通信系统, 所述通信系统 包括: 两个以上支持窄带通信的小区, 每个小区中包括至少两个频率不 同的窄带, 所述窄带的带宽小于等于所述通信系统的系统带宽, 所述基 站具体包括:
第二发送单元, 用于向终端设备发送测量参数, 以便于终端设备根 据所述测量参数对所述终端设备进行配置。
44、 根据权利要求 43所述的基站, 其特征在于, 所述基站还包括: 第二接收单元, 用于在跟踪区域 TA更新时, 接收终端设备发送的重 选请求,所述重选请求包括终端设备对当前窄带的 RSRP有效值与其他窄带 的 RSRP有效值进行排序的所述排序结果;
选择单元, 用于在所述排序结果中 RSRP 有效值最大的窄带为一个 时, 选择所述 RSRP有效值最大的窄带作为待重选窄带;
所述选择单元还用于在所述排序结果中 RSRP 有效值最大的窄带有 两个以上时,选择所述 RSRP有效值最大的窄带中的频率与所述当前窄带 的频率相差较远的窄带作为待重选窄带;
所述第二发送单元还用于向所述终端设备发送所述待重选窄带信 息, 以便于所述终端设备将所述终端设备从所述当前窄带重选到所述待 重选窄带上。
45、 根据权利要求 44所述的基站, 其特征在于, 当所述终端设备处 于空闲态时,
所述第二接收单元还用于在跟踪区域 TA更新时,接收所述终端设备 发送的重选请求, 所述重选请求包括所述待重选窄带的信息;
所述第二发送单元还用于向所述终端设备发送重选确认信息, 所述 重选确认信息包括对所述待重选窄带的信息的确认信息。
46、 根据权利要求 44或 45所述的基站, 其特征在于, 所述设备还 包括:
广播单元, 用于广播的所述其他小区的窄带信息, 所述其他窄带为 所述终端设备所处的当前小区中除所述当前窄带之外的窄带。
47、 根据权利要求 44所述的基站, 其特征在于, 当所述终端设备处 于连接态时,
所述第二接收单元还用于接收所述终端设备发送的测量启动请求; 所述第二发送单元还用于向所述终端设备发送启动确认信息, 以便 于所述终端设备对所述其他窄带的服务质量进行测量。
48、 根据权利要求 47所述的基站, 其特征在于, 所述基站还包括: 第一确定单元, 用于根据所述测量结果确定待切换窄带;
所述第二发送单元还用于向所述待切换小区所属基站发送切换请 求, 所述切换请求包括所述待切换小区各窄带的服务质量测量结果;
所述第二接收单元还用于接收所述待切换小区所属基站发送的切换 请求确认信息, 所述切换请求确认信息由所述待切换小区所属基站生成, 包含有所述待切换小区指定的待切换窄带信息;
所述第二发送单元还用于向所述终端设备转发所述切换请求确认信 息, 以便于所述终端设备根据所述切换请求确认信息将所述终端设备从 所述当前窄带切换到所述待切换小区指定的待切换窄带上。
49、 根据权利要求 47所述的基站, 其特征在于, 所述基站还包括: 第二确定单元, 用于根据所述测量结果确定待切换小区, 所述测量 结果包括: 所述当前小区中窄带的服务质量测量结果和所述其他小区各 窄带的服务质量测量结果;
所述第二接收单元还用于接收所述终端设备发送的测量结果; 所述第二发送单元还用于向所述终端设备发送待切换小区信息, 以 便于所述终端设备根据所述待切换小区信息向所述待切换小区所属基站 发送切换请求, 将所述终端设备从所述当前窄带切换到所述待切换小区 指定的待切换窄带上。
50、 一种通信系统, 其特征在于, 所述通信系统包括: 两个以上支 持窄带通信的小区, 每个小区中包括至少两个频率不同的窄带, 所述窄 带的带宽小于等于所述通信系统的系统带宽, 所述通信系统还包括:
权利要求 28至 42任意一项权利要求所述的终端设备; 权利要求 43至 49任意一项权利要求所述的基站。
PCT/CN2013/073397 2012-05-17 2013-03-29 一种频带测量方法、设备与系统 WO2013170667A1 (zh)

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