WO2021077866A1 - Procédé de commande de transfert et dispositif associé - Google Patents

Procédé de commande de transfert et dispositif associé Download PDF

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Publication number
WO2021077866A1
WO2021077866A1 PCT/CN2020/108572 CN2020108572W WO2021077866A1 WO 2021077866 A1 WO2021077866 A1 WO 2021077866A1 CN 2020108572 W CN2020108572 W CN 2020108572W WO 2021077866 A1 WO2021077866 A1 WO 2021077866A1
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WIPO (PCT)
Prior art keywords
terminal
measurement
base station
target
signal quality
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PCT/CN2020/108572
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English (en)
Chinese (zh)
Inventor
葛晨晖
李文
古江春
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华为技术有限公司
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Publication of WO2021077866A1 publication Critical patent/WO2021077866A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H04W36/0094—Definition of hand-off measurement parameters

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a handover control method and related equipment.
  • enhanced machine-type communication In order to meet the needs of the Internet of Everything, the 3rd Generation Partnership Project (3GPP) has proposed a new type of enhanced machine type communication in the long term evolution (LTE) standard protocol evolution. enhanced machine-type communication (eMTC) Internet of Things technology.
  • LTE long term evolution
  • eMTC enhanced machine-type communication
  • the eMTC terminal needs to support the handover function between different cells.
  • 3GPP TS 36.300 V13.4.0 eMTC terminals usually need to start GAP when measuring the same frequency A3.
  • the release 13 version of eMTC terminals only support a single narrow band (narrow band, NB), that is, the receiver It only supports a maximum of 6 consecutive RBs, which makes the receiver unable to tune to the center 6RB to measure the neighboring cells. If you need to perform the same frequency A3 measurement, you need to rely on the measurement GAP mechanism to allow the receiver to measure the signal quality of the neighboring cells during GAP.
  • NB narrow band
  • eMTC terminal generally has only one receiver. If eMTC terminal needs to switch cells, it needs to perform A3 measurement and GAP measurement. Since measuring GAP will affect the throughput of eMTC terminal, it is necessary to reduce unnecessary GAP measurement as much as possible. .
  • the prior art provides a mechanism.
  • the network maintainer sets a fixed threshold according to experience values and configures A2 measurement.
  • the eMTC terminal performs A2 measurement. If the eMTC terminal reports to the base station Reporting A2 measurement means that the eMTC terminal has measured that the signal quality of the current serving cell is lower than the fixed threshold, and the base station can determine that the eMTC terminal has moved to the edge of the serving cell. Only then is the eMTC terminal required to measure GAP And A3 measurement, if the A2 measurement is not reported, the eMTC terminal does not need to measure GAP and A3 measurement.
  • the A2 measurement threshold of each terminal is a fixed value set by the network maintenance personnel according to the environment in which each cell is located.
  • the fixed value is generally the experience value of the network maintenance personnel. If the fixed value is If the setting is too high, the eMTC terminal will frequently measure GAP and A3 measurements, which will affect the throughput. If the fixed value is set too low, it will affect the timeliness of cell handover. Therefore, the A2 measurement gate is set in the prior art.
  • the limit method cannot flexibly adapt to various network environments.
  • the embodiment of the present application provides a handover control method and related equipment, which are used by a base station to automatically determine a threshold, and trigger GAP measurement and handover measurement through the threshold.
  • the first aspect of the embodiments of the present application provides a handover control method, including:
  • the base station can receive the handover measurement report sent by the first terminal and obtain the first network signal quality parameter in the handover measurement report.
  • the signal quality parameter is related to the signal quality of the serving cell where the first terminal is located.
  • the base station can perform handover of the first terminal, and the base station can obtain the A2 measurement threshold.
  • the A2 measurement threshold is obtained by processing the first network signal quality parameter.
  • the base station configures the A2 measurement threshold for the second terminal.
  • the second terminal is a terminal that needs to measure GAP for handover and the second terminal and the first terminal belong to the serving cell. If the base station receives the A2 reported by the second terminal A measurement report.
  • the base station configures a measurement GAP and handover measurement for the second terminal.
  • the A2 measurement report is used to indicate that the second network signal quality parameter corresponding to the second terminal reaches the A2 measurement threshold.
  • the first network signal quality parameter corresponding to the first terminal is obtained through the base station, and the A2 measurement threshold is obtained by processing the first network signal quality parameter.
  • the base station configures the A2 measurement threshold for the second terminal, because the A2 measurement threshold is Based on the processing of the first network signal quality parameters sent by the first terminal, the A2 measurement threshold can be automatically determined according to the characteristics of different cells to trigger the measurement of GAP and switch the measurement, so as to adapt to specific conditions in different environments.
  • the base station in the first implementation manner of the first aspect of the embodiments of the present application, there are multiple ways for the base station to obtain the A2 measurement threshold.
  • the first network signal quality parameter is recorded to obtain a sample set.
  • the base station processes the sample set to obtain the target parameter.
  • the base station adds the first redundancy amount to the target parameter to obtain the A2 measurement threshold.
  • the margin may be related to the moving speed of the second terminal or channel fading.
  • the base station can obtain the A2 measurement threshold by processing the first network signal quality parameter by itself, reducing the third device to receive the first network signal quality parameter, processing the first network signal quality parameter to obtain the A2 measurement threshold, and sending it to the base station
  • the step of A2 measurement threshold improves the integrated processing capability of the base station.
  • the base station can also obtain the A1 measurement threshold, which is used to determine whether the second terminal is serving The signal quality of the cell is good or bad. For example, after processing the sample set, the base station can add a second redundancy based on the target parameters to obtain the A1 measurement threshold. The second redundancy can be related to the moving speed of the second terminal or Channel fading is related, and the second redundancy is greater than the first redundancy. After the base station obtains the A1 measurement threshold, the base station can configure the A1 measurement threshold for the second terminal.
  • the second terminal reports the A1 measurement report, it means the first The signal quality of the second terminal in the serving cell is higher than the A1 measurement threshold. If the second terminal does not report the A1 measurement report, it means that the signal quality of the second terminal in the serving cell is not higher than the A1 measurement threshold.
  • the base station can obtain the A1 measurement threshold through the target parameter, and use the A1 measurement threshold to determine whether the signal quality of the second terminal in the serving cell is good or bad.
  • the base station configures the measurement GAP for the second terminal and the handover measurement, the base station does not receive the second The handover measurement report reported by the terminal and the reception of the A1 measurement report reported by the second terminal indicates that the signal quality of the second terminal in the serving cell is higher than the A1 measurement threshold.
  • the second terminal has moved to the center of the serving cell and the base station The measurement GAP and handover measurement can be configured for the second terminal.
  • the base station can configure the measurement GAP and handover measurement for the second terminal by receiving the A1 measurement threshold sent by the second terminal, subtracting unnecessary configuration and measurement, and improving the throughput of the second terminal.
  • the base station can process the sample set to obtain target parameters in multiple ways. For example, the base station can transfer the sample The first network signal quality parameter in the set is input into the cumulative distribution function to obtain the cumulative distribution function of the first network signal quality parameter, and then the value corresponding to the first network signal quality parameter is selected as the target parameter in the cumulative distribution function according to the target probability
  • the target probability is set as required. Assuming that the target probability is 0.8, it means that 80% of the first terminals in the sample set have values of the first network signal quality parameter corresponding to the serving cell when switching services are less than or equal to the target parameter.
  • the base station can control the handover condition of the terminal through the cumulative distribution function, which is beneficial to the network maintenance personnel to obtain the target parameter according to the required probability.
  • the base station can process the sample set to obtain target parameters in multiple ways, for example, the base station can calculate the sample The average value of all the first network signal quality parameters in the set is used to obtain the target parameter.
  • the base station uses the average value of all the first network signal quality parameters in the sample set as the target parameter, which improves the feasibility of the solution.
  • the base station sends the first measurement threshold to the network management server.
  • the base station receives the A2 measurement threshold sent by the network management server, and the A2 measurement threshold is obtained by the network management server processing the first network signal quality parameter.
  • the base station may send the first network signal quality parameter to the network management server, and the network management server processes the first network signal quality parameter to obtain the A2 measurement threshold, and then sends the A2 measurement threshold to the base station, thereby reducing the number of base stations.
  • the computational load may be used to reduce the number of base stations.
  • the first terminal may specifically be a long-term evolution LTE terminal or a new air interface NR terminal
  • the second terminal is an enhanced machine type Communication eMTC terminal.
  • the specific implementation forms of the first terminal and the second terminal are limited, which improves the feasibility of the solution.
  • the first network signal quality parameter may specifically be the handover of the first terminal from the serving cell to the target cell Reference signal received power RSRP at time
  • the second network signal quality parameter may specifically be RSRP
  • the target parameter may specifically be target RSRP.
  • the first network signal quality parameter may specifically be the handover of the first terminal from the serving cell to the target cell
  • the reference signal received power RSRQ at time the second network signal quality parameter may specifically be RSRQ
  • the target parameter may specifically be target RSRQ.
  • the first network signal quality parameter may specifically be the handover of the first terminal from the serving cell to the target cell
  • the reference signal received power SINR at the time the second network signal quality parameter may specifically be the SINR
  • the target parameter may specifically be the target SINR.
  • the handover measurement may specifically be A3 measurement, A4 measurement, or A5 measurement.
  • a second aspect of the embodiments of the present application provides a handover control method, including:
  • the network management server receives the first network signal quality parameter sent by the base station, the first network signal quality parameter is related to the signal quality of the serving cell where the first terminal is located, the network management server analyzes the first network signal quality parameter to obtain the target parameter, and the network management server processes The target parameter obtains the A2 measurement threshold, and sends the A2 measurement threshold to the base station, so that the base station configures the A2 measurement threshold for the second terminal, the second terminal needs to measure GAP for handover cells, and the second terminal and the first terminal Belongs to the serving cell.
  • the first network signal quality parameter corresponding to the first terminal is received through the network management server, the first network signal quality parameter is analyzed and processed to obtain the A2 measurement threshold, and the A2 measurement threshold is sent to the base station, so that the base station is
  • the second terminal configures the A2 measurement threshold, and can automatically determine the A2 measurement threshold according to the characteristics of different cells to trigger the measurement of GAP and switch the measurement, so as to adapt to specific conditions in different environments.
  • the network management server may analyze the first network signal quality parameter in multiple ways. For example, the network management server may collect samples The first network signal quality parameter of the first network is input into the cumulative distribution function to obtain the cumulative distribution function of the first network signal quality parameter, and then the value corresponding to the first network signal quality parameter is selected as the target parameter in the cumulative distribution function according to the target probability.
  • the target probability is set as required. Assuming that the target probability is 0.8, it means that 80% of the first terminals in the sample set have values of the first network signal quality parameter corresponding to the serving cell when switching services are less than or equal to the target parameter.
  • the network management server can control the switching condition of the terminal through the cumulative distribution function, which is beneficial for the network maintenance personnel to obtain the target parameter according to the required probability.
  • the network management server can process the sample set to obtain target parameters in multiple ways. For example, the network management server can calculate all the first parameters in the sample set. An average value of the network signal quality parameters to obtain the target parameters.
  • the network management server uses the average value of all the first network signal quality parameters in the sample set as the target parameter, which improves the feasibility of the solution.
  • the network management server may specifically add the first redundancy to the target parameter to obtain the A2 measurement threshold when processing the target parameter.
  • the first amount of redundancy may be related to the moving speed or channel fading of the second terminal.
  • the specific implementation form of the processing target parameter is limited, which improves the feasibility of the solution.
  • the network management server may also obtain the A1 measurement threshold, and the A1 measurement threshold is used to determine whether the second terminal is The signal quality of the serving cell is good or bad.
  • the network management server can add a second redundancy based on the target parameter to obtain the A1 measurement threshold.
  • the second redundancy may be related to the moving speed of the second terminal or channel fading, And the second redundancy is greater than the first redundancy.
  • the network management server may send the A1 measurement threshold to the base station.
  • the network management server may obtain the A1 measurement threshold through the target parameter, and send the A1 measurement threshold to the base station, so that the base station can judge the signal quality of the second terminal in the serving cell through the A1 measurement threshold.
  • the first network signal quality parameter may specifically be the reference signal received power when the first terminal is handed over from the serving cell to the target cell RSRP
  • the target parameter may specifically be a target RSRP
  • the specific implementation form of the first network signal quality parameter and the target parameter is limited, which improves the feasibility of the solution.
  • the first network signal quality parameter may specifically be the reference signal received power when the first terminal is handed over from the serving cell to the target cell RSRQ
  • the target parameter may specifically be a target RSRQ
  • the specific implementation form of the first network signal quality parameter and the target parameter is limited, which improves the feasibility of the solution.
  • the first network signal quality parameter may specifically be the reference signal received power when the first terminal is handed over from the serving cell to the target cell SINR
  • the target parameter may specifically be the target SINR
  • the specific implementation form of the first network signal quality parameter and the target parameter is limited, which improves the feasibility of the solution.
  • the first terminal may specifically be a long-term evolution LTE terminal or a new air interface NR terminal
  • the second terminal is an enhanced machine type Communication eMTC terminal.
  • the specific implementation forms of the first terminal and the second terminal are limited, which improves the feasibility of the solution.
  • the third aspect of the embodiments of the present application provides a handover control method, including:
  • the base station can configure the measurement threshold for the target terminal.
  • the target terminal is a terminal that needs to measure GAP for handover cells. If the base station receives a preset event, the base station configures the target terminal for measurement GAP and handover measurement.
  • the preset event It is used to indicate that the quality of the downlink channel corresponding to the target terminal reaches the measurement threshold.
  • the base station configures the measurement threshold for the target terminal. If the base station receives a preset event, the base station configures the measurement GAP and handover measurement for the target terminal, because the preset event is used to indicate the downlink channel quality corresponding to the target terminal.
  • the measurement threshold can be automatically determined by monitoring the downlink channel quality of the target terminal to trigger the measurement GAP and switch the measurement, so as to adapt to specific conditions in different environments.
  • the base station can obtain the information reported by the target terminal.
  • Channel quality indicator CQI the measurement threshold can be a low threshold of the CQI value, lower than the low threshold indicates that the downlink channel quality of the target terminal is low, when the CQI value is lower than the low threshold, the base station can be triggered to be the target terminal Configure measurement GAP and switch measurement.
  • the base station can determine whether to trigger the base station to configure the measurement GAP and handover measurement for the target terminal according to the CQI value reported by the target terminal, which saves the number of transmissions and receptions between the base station and the target terminal.
  • the CQI value may specifically be the instantaneous value of the CQI reported by the target terminal.
  • the specific implementation form of the CQI value is limited, which improves the feasibility of the solution.
  • the CQI value may specifically be a filtered CQI value.
  • the specific implementation form of the CQI value is limited, which improves the feasibility of the solution.
  • the CQI value may specifically be an average value of the CQI over a period of time.
  • the specific implementation form of the CQI value is limited, which improves the feasibility of the solution.
  • the base station can determine that the target terminal schedules downlink The modulation and coding strategy MCS selected when transmitting the block.
  • the measurement threshold is the low threshold of MCS. Below the low threshold, the downlink channel quality of the target terminal is low. When the MCS value is lower than the low threshold, the base station can be triggered to The target terminal configures the measurement GAP and handover measurement.
  • the base station can determine whether to trigger the base station to configure the measurement GAP and handover measurement for the target terminal by determining the modulation and coding strategy MCS selected when the target terminal schedules the downlink transmission block, which saves the number of transmissions and receptions between the base station and the target terminal.
  • the base station can monitor the downlink of the target terminal. Residual block error rate RBLER, the measurement threshold is the high threshold of the RBLER, higher than the high threshold indicates that the downlink channel quality of the target terminal is low, when the RBLER is higher than the high threshold, the base station can be triggered to configure the measurement GAP for the target terminal and Switch measurement.
  • RBLER Residual block error rate
  • the base station can determine whether to trigger the base station to configure the measurement GAP and handover measurement for the target terminal by monitoring the target terminal's downlink residual block error rate RBLER, which saves the number of transmissions and receptions between the base station and the target terminal.
  • the base station can monitor the target terminal machine type The communication physical downlink control channel MPDCCH missed detection, and the proportion of discontinuous transmission DTX is obtained.
  • the measurement threshold is the high threshold of the DTX proportion. If the high threshold is higher, the downlink channel quality of the target terminal is low. When the DTX proportion is higher than the high threshold Within a limited time, the base station can be triggered to configure the measurement GAP and handover measurement for the target terminal.
  • the base station can determine whether to trigger the base station to configure measurement GAP and handover measurement for the target terminal by monitoring the missed detection of the target terminal machine type communication physical downlink control channel MPDCCH, which saves the number of transmission and reception between the base station and the target terminal.
  • the target terminal may specifically be an enhanced machine type communication eMTC terminal.
  • the specific implementation form of the target terminal is limited, which improves the feasibility of the solution.
  • the handover measurement may specifically be A3 measurement, A4 measurement, or A5 measurement.
  • a fourth aspect of the embodiments of the present application provides a base station, which executes the method of the foregoing first aspect or third aspect.
  • a fifth aspect of the embodiments of the present application provides a base station, which executes the method of the foregoing first aspect or third aspect.
  • the sixth aspect of the embodiments of the present application provides a network management server, and the network management server executes the method of the foregoing second aspect.
  • a seventh aspect of the embodiments of the present application provides a network management server, and the network management server executes the method of the foregoing second aspect.
  • the eighth aspect of the embodiments of the present application provides a computer storage medium that stores instructions in the computer storage medium.
  • the computer executes the method of the first, second, or third aspect described above.
  • the ninth aspect of the embodiments of the present application provides a computer software product.
  • the computer program product When the computer program product is executed on a computer, the computer executes the method of the aforementioned first aspect, second aspect, or third aspect.
  • Figure 1 is a network architecture diagram in an embodiment of the application
  • FIG. 2 is a schematic flowchart of a handover control method in an embodiment of the application
  • FIG. 3 is a schematic diagram of another flow of a handover control method in an embodiment of this application.
  • Fig. 4 is a schematic diagram of a cumulative distribution function in an embodiment of the application.
  • FIG. 5 is a schematic diagram of another flow of a handover control method in an embodiment of this application.
  • FIG. 6 is a schematic diagram of another flow of a handover control method in an embodiment of this application.
  • FIG. 7 is a schematic diagram of another flow of a handover control method in an embodiment of this application.
  • FIG. 8 is a schematic diagram of another flow of a handover control method in an embodiment of this application.
  • FIG. 9 is a schematic structural diagram of a base station in an embodiment of the application.
  • FIG. 10 is a schematic diagram of another structure of a base station in an embodiment of the application.
  • FIG. 11 is a schematic diagram of another structure of a base station in an embodiment of the application.
  • FIG. 12 is a schematic diagram of another structure of a base station in an embodiment of the application.
  • FIG. 13 is a schematic diagram of another structure of a base station in an embodiment of the application.
  • FIG. 14 is a schematic diagram of another structure of a base station in an embodiment of the application.
  • FIG. 15 is a schematic diagram of another structure of a base station in an embodiment of the application.
  • FIG. 16 is a schematic diagram of another structure of a base station in an embodiment of the application.
  • FIG. 17 is a schematic diagram of another structure of a base station in an embodiment of the application.
  • FIG. 18 is a schematic diagram of a structure of a network management server in an embodiment of the application.
  • FIG. 19 is a schematic diagram of another structure of a network management server in an embodiment of this application.
  • the embodiment of the present application provides a handover control method and related equipment, which are used by a base station to automatically determine a threshold, and trigger GAP measurement and handover measurement through the threshold.
  • the network architecture in the embodiment of the present application includes:
  • Network management server 101 serving cell base station 102, neighboring cell base station 103, long term evolution (LTE) terminal 104, enhanced machine-type communication (eMTC) terminal 105, serving cell CELL1, neighboring cell CELL2 .
  • LTE long term evolution
  • eMTC enhanced machine-type communication
  • 102 and 103 can be serving cell base stations or neighboring cell base stations.
  • CELL1 and CELL2 can be serving cells or neighboring cells.
  • 102 is the serving cell base station
  • 103 is the base station of the neighboring cell.
  • CELL1 is a serving cell
  • CELL2 is a neighboring cell as an example for schematic illustration, and the details are not limited here.
  • the network management server 101 is used to manage the serving cell base station 102 and the neighboring cell base station 103.
  • the serving cell base station 102 and the neighboring cell base station 103 may be managed by the same network management server 101, or may be managed by different network management servers, and the details are not limited here.
  • the serving cell CELL1 managed by the serving cell base station 102, the serving cell CELL2 managed by the neighboring cell base station 103, the serving cell CELL1 and the neighboring cell CELL2 may be cells of the same frequency or different frequency, and the details are not limited here.
  • the LTE terminal 104 and the eMTC terminal 105 can be handed over from the serving cell CELL1 to the neighboring cell CELL2 under the control of the serving cell base station 102.
  • 104 may be an LTE terminal. It may also be an eMTC terminal, 105 may be an eMTC terminal, or a massive machine type of communication (mMTC) terminal, which is not specifically limited here.
  • eMTC massive machine type of communication
  • the embodiments of the present application can be applied to the handover of cells of the same frequency and can also be applied to the handover of cells of different frequencies.
  • only the cells of the same frequency are used for schematic illustration, and the details are not limited here.
  • the base station configures A2 measurement for the terminal. After the terminal reports the A2 measurement report, the base station determines that the terminal has moved to the edge of the cell, and configures measurement GAP, handover measurement, and A1 measurement for the terminal so that it can measure appropriate In the neighboring cell, if the terminal reports the handover measurement, it will issue a handover command to switch the terminal to the neighboring cell; if the terminal does not report the handover measurement, but reports the A1 measurement, the base station determines that the terminal has moved to the cell center, and the base station is the The terminal configures the measurement GAP and handover measurement to eliminate the negative impact introduced by the measurement GAP.
  • the handover measurement may be A3 measurement or A4 measurement. It is understandable that in practical applications, the handover measurement may also be A5 measurement, which is not specifically limited here.
  • the first terminal in the embodiment of this application can be a terminal under the LTE network architecture, or a terminal under the eMTC network architecture or a new air interface NR terminal, and the second terminal can be a terminal under the eMTC network architecture or a mMTC network.
  • the terminal under the architecture in the following process, only the first terminal is an LTE terminal and the second terminal is an eMTC terminal for schematic illustration.
  • the eMTC terminal in the embodiment of the present application includes both bandwidth reduced low complexity, BL) terminals also include non-BL terminals that work in coverage enhancement (coverage enhancement, CE) mode, which is not specifically limited here.
  • the base station may obtain the target parameter according to the network signal quality parameter when the first terminal performs handover, and set the measurement threshold of the second terminal according to the target parameter.
  • the measurement threshold of the second terminal may be Calculated by the base station, or calculated by the network management server by the base station, as described below:
  • the base station calculates the measurement threshold of the second terminal:
  • the handover control method in the embodiment of the present application includes:
  • the base station configures handover measurement for the first terminal
  • the base station configures the measurement type of the LTE terminal through the measurement configuration information element (means config) carried in the RRC reconfiguration (connection reconfigration) message.
  • the means config can include the following content: measurement object, report configuration report config, report standard (the standard Trigger the LTE terminal to send a measurement report, which can be periodic or a single description), report format (for example: report the number of cells), measurement identifier, quantity configuration, and measurement interval at least one of them, specifically not done here limited.
  • the handover measurement in the embodiment of this application can be the A3 measurement in the same-frequency handover, or the A4 or A5 measurement in the inter-frequency handover.
  • the handover measurement is the A3 measurement in the same-frequency handover. Note, the details are not limited here.
  • the base station in the embodiment of the present application may be an LTE eNodeB or a 5G NR gNodeB, which is not specifically limited here.
  • the first terminal reports the first network signal quality parameter to the base station.
  • the LTE terminal performs measurement configuration on the RRC protocol side of the LTE terminal according to the measurement control issued by the base station, and sends an RRC connection reconfigration complete message to the base station to indicate that the measurement configuration is complete.
  • the LTE terminal performs measurement according to the content of the handover measurement control.
  • the handover measurement report condition When the handover measurement report condition is met, it will report the handover measurement report to the base station.
  • the handover measurement report may include: the measurement identifier, the measurement result of the serving cell or the measurement result of the neighboring cell, and the second measurement result of the serving cell.
  • a network signal quality parameter It is understandable that the LTE terminal can also report a handover measurement report to the base station, and the handover measurement report contains the first network signal quality parameter.
  • the first network signal quality parameter and the second network signal quality parameter are used as reference signal receiving power (RSRP) for schematic description in the embodiments of this application. It is understandable that the first network signal quality parameter and the second network signal quality parameter are used as reference signal receiving power (RSRP).
  • the first network signal quality parameter or the second network signal quality parameter can be RSRP or reference signal receiving quality (RSRQ). In practical applications, the first network signal quality parameter or the second network signal quality parameter It may also be other parameters, for example, the first network signal quality parameter or the second network signal quality parameter may be a signal to interference plus noise ratio (SINR), which is not specifically limited here.
  • SINR signal to interference plus noise ratio
  • the base station records the first network signal quality parameter to obtain a sample set
  • the base station After the base station receives the RSRP reported by the LTE terminal, it records the RSRP value. Every time the LTE terminal reports, the base station can record these RSRPs locally to obtain a sample set.
  • the base station processes the first network signal quality parameter in the sample set to obtain the target parameter.
  • the base station can process the sample set at regular intervals, or process the sample set when the RSRP has accumulated to a certain number.
  • the period of time can be one day or one week, and the specific period is not limited here.
  • a certain number can be 100,000 or 1 million, which is not limited here.
  • the base station processes the sample set mainly in the following two ways, which are described below:
  • the base station uses the cumulative distribution function CDF method to process the sample set
  • the base station After the base station obtains the sample set, the base station inputs the RSRP of all LTE terminal handover moments in the sample set into the cumulative distribution function CDF, and then selects the value corresponding to the RSRP in the CDF according to the target probability as the target parameter.
  • the target parameter is used as the target RSRP for schematic description. It can be understood that the target parameter can be the target RSRP or the target RSRQ. In practical applications, the target parameter can also be the target SINR. There is no limitation here.
  • the abscissa is the RSRP value at the time of handover of the LTE terminal in dBm
  • the ordinate is the probability of RSRP in the sample set.
  • the curve in Figure 4 is the RSRP value at the time of handover in the sample set.
  • the probability of appearing in the sample set assuming that the target probability is 0.8, the corresponding target RSRP value is -95dBm, as shown by the points pointed by the two arrows in Figure 4, which means that 80% of the LTE terminals in the sample set are switching
  • the RSRP values corresponding to the serving cell are all less than or equal to -95dBm.
  • the base station uses the statistical average method to process the sample set
  • the base station After the base station obtains the sample set, the base station can count all RSRP values in the sample set, then calculate the average value, and use the average value as the target parameter.
  • the base station can use the CDF method to obtain the target parameters, or the statistical average method to obtain the target parameters. It is understandable that in practical applications, the base station can also use other methods to obtain the target parameters, such as: base station
  • the maximum value in the sample set can be selected as the target parameter, which is not specifically limited here.
  • the base station processes the target parameter to obtain the A2 measurement threshold and the A1 measurement threshold;
  • the base station After the base station obtains the target parameter, on the basis of the target parameter, the base station increases the first redundancy to obtain the A2 measurement threshold of the eMTC terminal, and increases the second redundancy to obtain the A1 measurement threshold of the eMTC terminal.
  • the first redundancy and the second redundancy can be related to the moving rate of the eMTC terminal.
  • the faster the movement the greater the first redundancy and the second redundancy, and it can also be related to the channel fading.
  • the faster the channel fading The greater the first redundancy and the second redundancy.
  • the first redundancy and the second redundancy may be a cell-level fixed parameter, where the A1 measurement threshold is greater than the A2 measurement threshold, so the second redundancy is greater than the first redundancy.
  • the first redundancy and the second redundancy in this embodiment are set by the network maintenance personnel based on experience or needs.
  • the base station configures the A2 measurement event for the second terminal.
  • eMTC terminals usually adopt inband inband deployment, that is, co-cell deployment with LTE, eMTC and LTE are the same networking modes, so eMTC and LTE have the same switching point.
  • eMTC terminals usually need to start GAP when measuring the same frequency A3. This is mainly because: in order to reduce costs, the release 13 version of eMTC terminals only support a single narrow band (narrow band, NB), that is, the receiver It only supports a maximum of 6 consecutive RBs, which makes the receiver unable to tune to the center 6RB to measure the neighboring cells. If you need to perform the same frequency A3 measurement, you need to rely on the measurement GAP mechanism so that the receiver can measure the signal quality of the neighboring cells during GAP.
  • narrow band narrow band
  • the GAP mode may be GAP0, and the GAP period is 40ms, or it may be GAP1, and the GAP period is 80ms, which is not specifically limited here.
  • A3 measurement of LTE terminal does not need to measure GAP, so LTE terminal can always configure A3 measurement, and it can measure to neighboring cells in time and perform handover. Therefore, it can count the A3 measurement reports reported by LTE terminals in the same cell for same-frequency handover.
  • the base station After the eMTC terminal enters the network, the base station sends an A2 measurement event to the eMTC terminal by carrying an A2 measurement notification in a measurement control message.
  • the A2 measurement event indicates that the signal quality of the serving cell becomes lower than the corresponding threshold, and the threshold of the A2 measurement event is the A2 measurement threshold obtained in step 205.
  • the second terminal reports an A2 measurement report to the base station.
  • the eMTC terminal After the base station configures the A2 measurement event for the eMTC terminal, the eMTC terminal performs measurement according to the content of the measurement control message. When the report condition of the A2 measurement event is met, the eMTC terminal reports the A2 measurement report to the base station.
  • the A2 measurement report may include measurement ID and service
  • the measurement quantity (RSRP, RSRQ or SINR) of the cell, the measurement quantity may be the second network signal quality parameter.
  • the base station configures measurement GAP, handover measurement, and A1 measurement event for the second terminal.
  • the base station When the base station receives the A2 measurement report reported by the eMTC terminal, that is, the signal strength of the serving cell is lower than the corresponding threshold, the base station determines that the eMTC terminal has moved to the edge of the serving cell. It is necessary for the eMTC terminal to switch cells to increase the signal strength.
  • A3 measurement indicates that the signal quality of the neighboring cell of the serving cell is higher than the serving cell by a certain threshold.
  • the base station uses the measurement configuration information element (means config) carried in the RRC reconfiguration message to notify the eMTC terminal of the A3 measurement configuration message, that is, Send A3 measurement control, because the A3 measurement of eMTC terminal needs to measure GAP, as described in the network framework, it is also necessary to determine whether the eMTC terminal moves to the serving cell center through A1 measurement, so that the eMTC terminal reports the A1 measurement report before configuring the measurement GAP and A3 measurement.
  • the measurement configuration information element (means config) carried in the RRC reconfiguration message to notify the eMTC terminal of the A3 measurement configuration message, that is, Send A3 measurement control, because the A3 measurement of eMTC terminal needs to measure GAP, as described in the network framework, it is also necessary to determine whether the eMTC terminal moves to the serving cell center through A1 measurement, so that the eMTC terminal reports the A1 measurement report before configuring the measurement GAP and A3 measurement.
  • the base station configures the A1 measurement event for the second terminal, and the threshold of the A1 measurement event is the A1 measurement threshold obtained in step 205.
  • the network management server calculates the measurement threshold of the second terminal:
  • the handover control method in the embodiment of the present application includes:
  • the base station configures handover measurement for the first terminal
  • the first terminal reports the first network signal quality parameter to the base station.
  • Step 301 and step 302 in this embodiment are similar to step 201 and step 202 in the foregoing embodiment shown in FIG. 2 and will not be repeated here.
  • the base station sends the first network signal quality parameter to the network management server.
  • the base station After receiving the first network signal quality parameter reported by the first terminal, the base station sends the first network signal quality parameter to the network management server.
  • the network management server records the first network signal quality parameter to obtain a sample set
  • the network management server After the network management server receives the first network signal quality parameter of the LTE terminal sent by the base station, it records the value of the first network signal quality parameter. Each time the base station sends it, the network management server can record these first network signal quality parameters to obtain a sample set.
  • the network management server processes the first network signal quality parameter in the sample set to obtain the target parameter.
  • the network management server may process the sample set at regular intervals, or may process the sample set when the first network signal quality parameter has accumulated to a certain number.
  • the period of time can be one day or one week, and the specific period is not limited here.
  • a certain number can be 100,000 or 1 million, which is not limited here.
  • the network management server processes the sample collection mainly in the following two ways, which are described below:
  • the network management server uses the cumulative distribution function CDF method to process the sample collection
  • the network management server After the network management server obtains the sample set, the network management server inputs the first network signal quality parameters of all LTE terminals in the sample set into the cumulative distribution function CDF, and then selects the value corresponding to the first network signal quality parameter in the CDF according to the target probability As the target parameter.
  • the target parameter is used as the target RSRP for schematic description. It can be understood that the target parameter can be the target RSRP or the target RSRQ. In practical applications, the target parameter can also be the target SINR. There is no limitation here.
  • the abscissa is the RSRP value at the switching time, in dBm
  • the ordinate is the CDF of the RSRP.
  • the curve in Figure 4 is the probability of the RSRP value appearing in the sample set at the switching time in the sample set. , Assuming that the target probability is 0.8, the corresponding target RSRP value is -95dBm, as shown by the points pointed to by the two arrows in Figure 4, which means that 80% of the LTE terminals in the sample set have all the RSRP values corresponding to the handover of the serving cell. Less than or equal to -95dBm.
  • the network management server uses the statistical average method to process the sample collection
  • the network management server may count the values of all the first network signal quality parameters in the sample set, and then calculate the average value, and use the average value as the target parameter.
  • the network management server can use the CDF method to obtain the target parameters, or the statistical average method to obtain the target parameters. It is understandable that in practical applications, the network management server can also use other methods to obtain the target parameters, such as : The network management server can select the maximum value in the sample set as the target parameter, which is not limited here.
  • the network management server processes the target parameter to obtain the A2 measurement threshold and the A1 measurement threshold;
  • the network management server After the network management server obtains the target parameter, the network management server increases the first redundancy amount to obtain the A2 measurement threshold of the eMTC terminal on the basis of the target parameter, and increases the second redundancy amount to obtain the A1 measurement threshold of the eMTC terminal.
  • the first redundancy and the second redundancy can be related to the moving rate of the eMTC terminal.
  • the faster the movement the greater the first redundancy and the second redundancy, and it can also be related to the channel fading.
  • the faster the channel fading The greater the first redundancy and the second redundancy.
  • the network management server saves the first redundancy and the second redundancy, where the A1 measurement threshold is greater than the A2 measurement threshold, so the second redundancy is greater than the first redundancy.
  • the first redundancy and the second redundancy in this embodiment are set by the network maintenance personnel based on experience or needs.
  • the network management server sends the A2 measurement threshold and A1 measurement threshold to the base station.
  • the network management server processes the target parameters to obtain the A2 measurement threshold and A1 measurement threshold, and sends the A2 measurement threshold and A1 measurement threshold to the base station;
  • the base station configures the A2 measurement event for the second terminal.
  • the threshold of the A2 measurement event is the A2 measurement threshold obtained in step 306.
  • the second terminal reports an A2 measurement report to the base station.
  • the base station configures measurement GAP, handover measurement, and A1 measurement event for the second terminal.
  • the threshold of the A1 measurement event is the A1 measurement threshold obtained in step 306.
  • Steps 308 to 310 in this embodiment are similar to steps 206 to 208 in the embodiment shown in FIG. 2, and are not repeated here.
  • the base station can evaluate the quality of the downlink channel according to the channel quality indication (CQI) reported by the eMTC terminal, and set the measurement threshold of the eMTC terminal according to the CQI.
  • CQI channel quality indication
  • the base station can also schedule the downlink transmission block according to the eMTC terminal.
  • the selected modulation and coding strategy MCS evaluates the quality of the downlink channel, and sets the measurement threshold of the eMTC terminal according to the MCS.
  • the base station can evaluate the quality of the downlink channel according to the residual block error rate (RBLER).
  • RBLER residual block error rate
  • the base station can also evaluate the quality of the downlink channel according to the discontinuous transmission (DTX) ratio, and set the measurement threshold of the eMTC terminal according to the DTX ratio.
  • DTX discontinuous transmission
  • the target terminal is only the eMTC terminal for schematic description. It can be understood that the target terminal may be an eMTC terminal or an LTE terminal. In practical applications, the target terminal may also be other terminals.
  • the terminal is a terminal that needs to measure GAP when switching cells, and it is not specifically limited here.
  • the handover control method in the embodiment of the present application includes:
  • the base station configures the measurement threshold
  • CQI is an important indicator for the eMTC terminal to feed back the quality of the downlink channel to the base station. So CQI can be used to trigger handover measurement.
  • the measurement threshold can be the low threshold of the CQI value.
  • the low threshold is set by the network operation and maintenance personnel based on experience or needs, and the range is between 0 and 15.
  • the low threshold can be set to 2, and the specific value is not set here. limited.
  • the base station generally sets a high threshold in addition to a low threshold.
  • the CQI value is lower than the low threshold, the downlink channel quality of the eMTC terminal is considered to be low.
  • the CQI value is high At a low threshold, it is considered that the downlink channel quality of the eMTC terminal is high.
  • the base station may set one threshold (low threshold), or may set two thresholds (low threshold and high threshold), which is not specifically limited here.
  • the base station can be configured with periodic CQI or aperiodic CQI, which is not specifically limited here.
  • the target terminal reports a channel quality indicator CQI to the base station.
  • the base station needs to determine the coding method (for example, the LTE terminal, there are three main coding methods: OPSK, 16QAM, and 64QAM), the eMTC terminal needs to feed back the CQI, and the protocol quantifies the channel quality into a sequence of 0-15.
  • the coding method for example, the LTE terminal, there are three main coding methods: OPSK, 16QAM, and 64QAM
  • the eMTC terminal needs to feed back the CQI, and the protocol quantifies the channel quality into a sequence of 0-15.
  • Periodic CQI is usually reported through a physical uplink control channel (PUCCH), and aperiodic CQI is usually reported through a physical uplink shared channel (PUSCH).
  • PUCCH physical uplink control channel
  • PUSCH physical uplink shared channel
  • the value of CQI is the instantaneous value of CQI reported by the eMTC terminal;
  • the value of CQI is the filtered CQI value
  • the CQI value is the average value of the CQI value in a period of time.
  • the period of time may be one second or two seconds, and the specific period is not limited here.
  • the base station configures the measurement GAP and handover measurement for the target terminal.
  • the CQI value reported by the target terminal is lower than the low threshold, it indicates that the downlink channel quality of the eMTC terminal is low.
  • the downlink channel quality of the eMTC terminal can be improved by switching cells, and the base station configures the eMTC terminal to measure GAP and handover measurement.
  • the handover control method in the embodiment of the present application includes:
  • the base station configures a measurement threshold
  • the MCS table is a representation of the communication rate, and each MCS index corresponds to the physical transmission rate under a set of parameters. So MCS can be used to trigger switch measurement.
  • the measurement threshold can be the low threshold of the MCS value.
  • the low threshold is set by the network operation and maintenance personnel based on experience or needs.
  • the range is between 0 and 28.
  • the low threshold can be set to 1, and the specific value is not limited here. .
  • the base station generally sets a high threshold in addition to a low threshold.
  • the MCS value is lower than the low threshold, the downlink channel quality of the eMTC terminal is considered to be low.
  • the MCS value is high At a low threshold, it is considered that the downlink channel quality of the eMTC terminal is high.
  • the base station may set one threshold (low threshold), or may set two thresholds (low threshold and high threshold), which is not specifically limited here.
  • the base station determines the modulation and coding strategy MCS selected when the target terminal schedules downlink transmission blocks;
  • the base station will select the MCS for link adaptation based on the CQI reported by the eMTC terminal and the acknowledgement/non-acknowledge (ACK/NACK) information of the transport block fed back by the eMTC terminal.
  • the base station can monitor the MCS that is finally selected for scheduling the downlink transport block for the eMTC terminal. (The value ranges from 0 to 28).
  • the base station configures the measurement GAP and handover measurement for the target terminal.
  • the MCS value When the MCS value is lower than the MCS low threshold, it indicates that the downlink channel quality of the eMTC terminal is low.
  • the downlink channel quality of the eMTC terminal can be improved by switching cells, and the base station configures the eMTC terminal to measure GAP and handover measurement.
  • the handover control method in the embodiment of the present application includes:
  • the base station configures a measurement threshold
  • base stations send data to eMTC terminals in blocks.
  • the residual block error rate RBLER is the ratio of the number of blocks with errors to the number of blocks effectively transmitted after the maximum number of transmissions is reached, multiplied by 100%. Since RBLER is an important indicator of network performance and service quality, the quality of RBLER directly affects the quality of voice services and the throughput rate of data transmission services, so RBLER can be used to trigger handover measurement.
  • the measurement threshold may be a high threshold of RBLER.
  • the high threshold is set by network operation and maintenance personnel based on experience or needs, and the range is between 0% and 100%. For example, the high threshold may be set to 5%.
  • the base station generally sets a low threshold in addition to the high threshold.
  • the base station may set one threshold (high threshold), or may set two thresholds (low threshold and high threshold), which is not specifically limited here.
  • the base station monitors the downlink residual block error rate RBLER of the target terminal
  • the eMTC terminal will feedback ACK/NACK information through PUCCH/PUSCH, that is, whether the downlink transport block is received correctly.
  • the base station configures the measurement GAP and handover measurement for the target terminal.
  • the base station configures the eMTC terminal to measure GAP and handover measurement.
  • the handover control method in the embodiment of the present application includes:
  • the base station configures a measurement threshold
  • the missed detection of the machine type communication physical downlink control channel (MPDCCH) of the eMTC terminal is recorded as DTX.
  • the DTX ratio is defined as the ratio of the number of missed MPDCCH detections to the total number of MPDCCH transmissions multiplied by 100%.
  • the measurement threshold may be a DTX high threshold, which is set by network operation and maintenance personnel based on experience or needs, and ranges from 0% to 100%.
  • the high threshold may be set to 10%.
  • the base station generally sets a low threshold in addition to a high threshold.
  • the DTX ratio is higher than the high threshold, the downlink channel quality of the eMTC terminal is considered to be low.
  • the DTX ratio is lower than the low threshold Threshold, it is considered that the downlink channel quality of the eMTC terminal is high.
  • the base station may set one threshold (high threshold), or may set two thresholds (low threshold and high threshold), which is not specifically limited here.
  • the base station monitors the missed detection of the MPDCCH of the target terminal
  • the eMTC terminal After the base station sends the scheduling authorization for the downlink transport block through MPDCC, the eMTC terminal will feed back ACK/NACK information through PUCCH/PUSCH. If the eMTC terminal does not feed back the corresponding ACK/NACK information, it is considered that the eMTC terminal has missed MPDCCH detection, which is recorded as DTX .
  • the base station configures the measurement GAP and handover measurement for the target terminal.
  • the base station configures the eMTC terminal to measure GAP and handover measurement.
  • a base station and a network management server are provided, and the following are respectively described:
  • the base station that sets the measurement threshold of the second terminal based on the network signal quality parameter when the first terminal performs handover:
  • an embodiment of the base station in the embodiment of the present application includes:
  • the obtaining unit 901 is configured to obtain a first network signal quality parameter corresponding to the first terminal, where the first network signal quality parameter is related to the signal quality of the serving cell where the first terminal is located;
  • the obtaining unit 901 is further configured to obtain an A2 measurement threshold, where the A2 measurement threshold is obtained by processing the first network signal quality parameter;
  • the configuration unit 902 is configured to configure an A2 measurement threshold for the second terminal, the second terminal is a terminal that needs to measure GAP for handover cells, and the second terminal and the first terminal belong to a serving cell;
  • the receiving unit 903 is configured to receive the A2 measurement report reported by the second terminal;
  • the configuration unit 902 is further configured to configure the measurement GAP and handover measurement for the second terminal if the receiving unit 903 receives the A2 measurement report reported by the second terminal.
  • the A2 measurement report is used to indicate the second network signal quality parameter corresponding to the second terminal The A2 measurement threshold is reached.
  • each unit of the base station is similar to those described in the foregoing embodiments shown in FIG. 2 and FIG. 3, and will not be repeated here.
  • the first network signal quality parameter corresponding to the first terminal is acquired by the acquisition unit 901, and the first network signal quality parameter is processed to obtain the A2 measurement threshold.
  • the configuration unit 902 configures the A2 measurement threshold for the second terminal.
  • the A2 measurement threshold is processed based on the first network signal quality parameter sent by the first terminal.
  • the A2 measurement threshold can be automatically determined according to the characteristics of different cells to trigger the measurement of GAP and switch measurement, so as to adapt to specific conditions in different environments.
  • the base station can obtain the target parameter according to the network signal quality parameter when the first terminal performs handover, and set the measurement threshold of the second terminal according to the target parameter, as shown in FIG. 10, in practical applications, the measurement threshold of the second terminal It can be calculated by the base station, or it can be calculated by the network management server by the base station, as shown in Figure 11 or Figure 12, which will be explained separately below:
  • another embodiment of the base station in the embodiment of the present application includes:
  • the obtaining unit 1001 is configured to obtain a first network signal quality parameter corresponding to the first terminal, where the first network signal quality parameter is related to the signal quality of the serving cell where the first terminal is located;
  • the obtaining unit 1001 is further configured to obtain an A2 measurement threshold, where the A2 measurement threshold is obtained by processing the first network signal quality parameter;
  • the configuration unit 1002 is configured to configure an A2 measurement threshold for the second terminal, the second terminal is a terminal that needs to measure GAP for handover cells, and the second terminal and the first terminal belong to the serving cell;
  • the receiving unit 1003 is configured to receive the A2 measurement report reported by the second terminal;
  • the configuration unit 1002 is further configured to configure the measurement GAP and handover measurement for the second terminal if the receiving unit 1003 receives the A2 measurement report reported by the second terminal.
  • the A2 measurement report is used to indicate the second network signal quality parameter corresponding to the second terminal Reach the A2 measurement threshold;
  • the configuration unit 1004 is used to configure the measurement GAP and handover for the second terminal when the receiving unit does not receive the handover measurement report sent by the second terminal and the receiving unit receives the A1 measurement report sent by the second terminal measuring;
  • the recording unit 1005 is used to record the first network signal quality parameter to obtain a sample set
  • the processing unit 1006 is used to process the sample set to obtain target parameters
  • the adding unit 1007 is used to increase the first redundancy amount based on the target parameter to obtain the A2 measurement threshold.
  • the first redundancy amount is related to the moving speed or channel fading of the second terminal.
  • each unit of the base station is similar to those described in the foregoing embodiments shown in FIG. 2 and FIG. 3, and will not be repeated here.
  • another embodiment of the base station in the embodiment of the present application includes:
  • the obtaining unit 1101 is configured to obtain a first network signal quality parameter corresponding to the first terminal, where the first network signal quality parameter is related to the signal quality of the serving cell where the first terminal is located;
  • the obtaining unit 1101 is further configured to obtain an A2 measurement threshold, where the A2 measurement threshold is obtained by processing the first network signal quality parameter;
  • the configuration unit 1102 is configured to configure an A2 measurement threshold for the second terminal, the second terminal is a terminal that needs to measure GAP for handover cells, and the second terminal and the first terminal belong to the serving cell;
  • the receiving unit 1103 is configured to receive the A2 measurement report reported by the second terminal;
  • the configuration unit 1102 is further configured to, if the receiving unit 1103 receives the A2 measurement report reported by the second terminal, configure the measurement GAP and handover measurement for the second terminal.
  • the A2 measurement report is used to indicate the second network signal quality parameter corresponding to the second terminal Reach the A2 measurement threshold;
  • the de-configuration unit 1104 is used for when the receiving unit does not receive the handover measurement report sent by the second terminal, and the receiving unit receives the A1 measurement report sent by the second terminal, the de-configuring unit 1104 configures the measurement GAP and GAP for the second terminal. Switch measurement;
  • the sending unit 1105 is configured to send the first network signal quality parameter to the network management server;
  • the receiving unit 1103 is also configured to receive the A2 measurement threshold sent by the network management server, where the A2 measurement threshold is obtained by the network management server processing the first network signal quality parameter.
  • each unit of the base station is similar to those described in the foregoing embodiments shown in FIG. 2 and FIG. 3, and will not be repeated here.
  • the base station that sets the measurement threshold of the second terminal based on the following channel quality:
  • another embodiment of the base station in the embodiment of the present application includes:
  • the configuration unit 1201 is configured to configure a measurement threshold for a target terminal, and the target terminal is a terminal that needs to measure GAP in a handover cell;
  • the receiving unit 1202 is configured to receive preset events
  • the configuration unit 1201 is further configured to configure the measurement GAP and handover measurement for the target terminal if the receiving unit 1202 receives a preset event.
  • the preset event is used to indicate that the quality of the downlink channel corresponding to the target terminal reaches the measurement threshold.
  • each unit of the base station is similar to those described in the foregoing embodiments shown in FIG. 2 and FIG. 3, and will not be repeated here.
  • another embodiment of the base station in the embodiment of the present application includes:
  • the configuration unit 1301 is configured to configure a measurement threshold for a target terminal, and the target terminal is a terminal that needs to measure GAP in a handover cell;
  • the receiving unit 1302 is used to receive preset events
  • the configuration unit 1301 is further configured to, if the receiving unit 1302 receives a preset event, configure measurement GAP and switch measurement for the target terminal, the preset event is used to indicate that the quality of the downlink channel corresponding to the target terminal reaches the measurement threshold;
  • the obtaining unit 1303 is configured to obtain the channel quality indicator CQI reported by the target terminal;
  • the measurement threshold is the low threshold of the CQI value, and lower than the low threshold indicates that the downlink channel quality of the target terminal is low;
  • the first trigger unit 1304 is used to trigger the configuration unit 1301 to configure the measurement GAP for the target terminal and switch the measurement when the CQI value is lower than the low threshold of the CQI.
  • each unit of the base station is similar to those described in the foregoing embodiments shown in FIG. 2 and FIG. 3, and will not be repeated here.
  • another embodiment of a base station in the embodiment of the present application includes:
  • the configuration unit 1401 is configured to configure a measurement threshold for a target terminal, and the target terminal is a terminal that needs to measure GAP in a handover cell;
  • the receiving unit 1402 is used to receive preset events
  • the configuration unit 1401 is further configured to configure the measurement GAP and handover measurement for the target terminal if the receiving unit 1402 receives a preset event, the preset event is used to indicate that the quality of the downlink channel corresponding to the target terminal reaches the measurement threshold;
  • the determining unit 1403 is configured to determine the modulation and coding strategy MCS selected when the target terminal schedules downlink transmission blocks;
  • the measurement threshold is the low threshold of MCS, lower than the low threshold indicates that the downlink channel quality of the target terminal is low;
  • the second trigger unit 1404 is configured to trigger the configuration unit 1401 to configure the measurement GAP and switch the measurement for the target terminal when the value of the MCS is lower than the low threshold of the MCS.
  • each unit of the base station is similar to those described in the foregoing embodiments shown in FIG. 2 and FIG. 3, and will not be repeated here.
  • another embodiment of the base station in the embodiment of the present application includes:
  • the configuration unit 1501 is configured to configure a measurement threshold for a target terminal, and the target terminal is a terminal that needs to measure GAP in a handover cell;
  • the receiving unit 1502 is used to receive preset events
  • the configuration unit 1501 is further configured to, if the receiving unit 1502 receives a preset event, configure the measurement GAP and switch measurement for the target terminal, the preset event is used to indicate that the quality of the downlink channel corresponding to the target terminal reaches the measurement threshold;
  • the first monitoring unit 1503 is configured to monitor the downlink residual block error rate RBLER of the target terminal;
  • the measurement threshold is the high threshold of RBLER, higher than the high threshold indicates that the downlink channel quality of the target terminal is low;
  • the third trigger unit 1504 is used to trigger the configuration unit 1501 to configure the measurement GAP and handover measurement for the target terminal when the RBLER is higher than the high threshold of the RBLER.
  • each unit of the base station is similar to those described in the foregoing embodiments shown in FIG. 2 and FIG. 3, and will not be repeated here.
  • another embodiment of the base station in the embodiment of the present application includes:
  • the configuration unit 1601 is configured to configure a measurement threshold for a target terminal, and the target terminal is a terminal that needs to measure GAP in a handover cell;
  • the receiving unit 1602 is used to receive preset events
  • the configuration unit 1601 is further configured to configure the measurement GAP and switch measurement for the target terminal if the receiving unit 1602 receives a preset event, the preset event is used to indicate that the quality of the downlink channel corresponding to the target terminal reaches the measurement threshold;
  • the second monitoring unit 1603 is configured to monitor the missed detection of the MPDCCH physical downlink control channel of the machine type communication of the target terminal, and obtain the proportion of discontinuous transmission of DTX;
  • the measurement threshold is the high threshold of the DTX ratio, higher than the high threshold indicates that the downlink channel quality of the target terminal is low;
  • the fourth trigger unit 1604 is configured to trigger the configuration unit 1601 to configure the measurement GAP and switch the measurement for the target terminal when the DTX ratio is higher than the high threshold of the DTX ratio.
  • each unit of the base station is similar to those described in the foregoing embodiments shown in FIG. 2 and FIG. 3, and will not be repeated here.
  • FIG. 17 is another schematic structural diagram of a base station in an embodiment of the present application.
  • the base station 1700 may include one or more central processing units (CPU) 1701 and a memory 1705.
  • the memory 1705 stores one or more Application or data.
  • the memory 1705 may be volatile storage or persistent storage.
  • the program stored in the memory 1705 may include one or more modules, and each module may include a series of instruction operations on the server.
  • the central processing unit 1701 may be configured to communicate with the memory 1705, and execute a series of instruction operations in the memory 1705 on the base station 1700.
  • the base station 1700 may also include one or more power supplies 1702, one or more wired or wireless network interfaces 1703, one or more input and output interfaces 1704, and/or one or more operating systems, such as Windows ServerTM, Mac OS XTM , UnixTM, LinuxTM, FreeBSDTM, etc.
  • operating systems such as Windows ServerTM, Mac OS XTM , UnixTM, LinuxTM, FreeBSDTM, etc.
  • the central processing unit 1701 can perform operations performed by the base station in the foregoing embodiments shown in FIG. 2 and FIG. 3, and details are not described herein again.
  • an embodiment of the network management server in the embodiment of the present application includes:
  • the receiving unit 1801 is configured to receive a first network signal quality parameter sent by a base station, where the first network signal quality parameter is related to the signal quality of the serving cell where the first terminal is located;
  • the analysis unit 1802 is configured to analyze the first network signal quality parameter to obtain the target parameter;
  • the processing unit 1803 is used to process the target parameter to obtain the A2 measurement threshold
  • the sending unit 1804 is configured to send the A2 measurement threshold to the base station, so that the base station configures the A2 measurement threshold for the second terminal.
  • the second terminal is a terminal that needs to measure GAP for handover cells, and the second terminal and the first terminal belong to the serving cell.
  • each unit of the network management server is similar to those described in the foregoing embodiment shown in FIG. 3, and will not be repeated here.
  • FIG. 19 is another schematic structural diagram of a network management server in an embodiment of the present application.
  • the network management server 1900 may include one or more central processing units (CPU) 1901 and a memory 1905.
  • the memory 1905 stores one or one The above application or data.
  • the memory 1905 may be volatile storage or persistent storage.
  • the program stored in the memory 1905 may include one or more modules, and each module may include a series of instruction operations on the server.
  • the central processing unit 1901 may be configured to communicate with the storage 1905, and execute a series of instruction operations in the storage 1905 on the network management server 1900.
  • the network management server 1900 may also include one or more power supplies 1902, one or more wired or wireless network interfaces 1903, one or more input and output interfaces 1904, and/or one or more operating systems, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, etc.
  • operating systems such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, etc.
  • the central processing unit 1901 can perform operations performed by the network management server in the embodiment shown in FIG. 3, and details are not described here.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or integrated. To another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , Including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, read-only memory), random access memory (RAM, random access memory), magnetic disks or optical disks and other media that can store program codes. .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisation de la présente invention concernent un procédé de commande de transfert, qui peut s'appliquer à une technologie d'évolution à long terme (LTE), à une communication améliorée de type machine (eMTC)) ou à la 5G NR, etc. Une station de base obtient des premiers paramètres de qualité de signal de réseau correspondant à un premier terminal, obtient un seuil de mesure A2 conformément aux premiers paramètres de qualité de signal de réseau et configure le seuil de mesure A2 pour un second terminal ; si la station de base reçoit un rapport de mesure A2 rapporté par le second terminal, la station de base configure le GAP (problème d'affectation généralisée) de mesure et la mesure de transfert pour le second terminal. Le seuil de mesure A2 peut être automatiquement déterminé pour déclencher le GAP de mesure et la mesure de transfert, de façon à s'adapter à des situations spécifiques dans différents environnements.
PCT/CN2020/108572 2019-10-23 2020-08-12 Procédé de commande de transfert et dispositif associé WO2021077866A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114222339A (zh) * 2021-12-31 2022-03-22 紫光展锐(重庆)科技有限公司 一种小区测量方法及相关装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102026271A (zh) * 2009-09-23 2011-04-20 中兴通讯股份有限公司 基于lte架构实现频间、系统间测量的控制方法及系统
CN103379517A (zh) * 2012-04-13 2013-10-30 华为技术有限公司 无线链路失败报告处理方法、异常事件统计处理方法及设备和系统
CN108616907A (zh) * 2016-12-28 2018-10-02 上海诺基亚贝尔股份有限公司 一种用于lte用户的移动性管理的方法、设备与系统
CN109996257A (zh) * 2017-12-30 2019-07-09 中国移动通信集团湖北有限公司 异频起测门限优化方法、装置、设备及介质
WO2019159150A1 (fr) * 2018-02-19 2019-08-22 Telefonaktiebolaget Lm Ericsson (Publ) Résolution d'ambiguïtés associées à une dérivation de qualité de cellule nr

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102883361B (zh) * 2011-07-15 2016-04-06 华为技术有限公司 小区信息上报和小区移动性参数调整的方法及设备
CN102905288B (zh) * 2012-09-05 2015-08-05 大唐移动通信设备有限公司 一种td-lte系统中的测量门限设置方法及装置
CN103686891A (zh) * 2012-09-11 2014-03-26 华为技术有限公司 链路的切换方法、控制器、接入点和无线通信系统
US9462520B2 (en) * 2013-01-21 2016-10-04 Telefonaktiebolaget L M Ericsson (Publ) Systems and methods for using enhanced receiver and gaps when handling interference
WO2015026286A1 (fr) * 2013-08-23 2015-02-26 Telefonaktiebolaget L M Ericsson (Publ) Nœud d'accès radio, dispositif sans fil et procédés permettant de gérer la mobilité du dispositif sans fil dans un réseau de communications radio
CN106256145B (zh) * 2015-04-10 2020-07-10 诸暨易和项目投资有限公司 异系统的测量方法、相关装置及测量系统
US9980169B2 (en) * 2015-05-15 2018-05-22 Qualcomm Incorporated Measurement gaps in carrier aggregation
CN106559804B (zh) * 2015-09-24 2020-05-01 中国移动通信集团公司 异系统测量优化方法及装置、用户设备
EP3393197A1 (fr) * 2017-04-18 2018-10-24 HTC Corporation Appareil et procédé pour traiter les intervalles de mesure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102026271A (zh) * 2009-09-23 2011-04-20 中兴通讯股份有限公司 基于lte架构实现频间、系统间测量的控制方法及系统
CN103379517A (zh) * 2012-04-13 2013-10-30 华为技术有限公司 无线链路失败报告处理方法、异常事件统计处理方法及设备和系统
CN108616907A (zh) * 2016-12-28 2018-10-02 上海诺基亚贝尔股份有限公司 一种用于lte用户的移动性管理的方法、设备与系统
CN109996257A (zh) * 2017-12-30 2019-07-09 中国移动通信集团湖北有限公司 异频起测门限优化方法、装置、设备及介质
WO2019159150A1 (fr) * 2018-02-19 2019-08-22 Telefonaktiebolaget Lm Ericsson (Publ) Résolution d'ambiguïtés associées à une dérivation de qualité de cellule nr

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ERICSSON: "Remaining issues for Inter-RAT measurement from LTE to NR for both SA", 3GPP TSG-RAN WG2 #99 R2-1708021, 25 August 2017 (2017-08-25), XP051317933 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114222339A (zh) * 2021-12-31 2022-03-22 紫光展锐(重庆)科技有限公司 一种小区测量方法及相关装置
CN114222339B (zh) * 2021-12-31 2023-12-26 紫光展锐(重庆)科技有限公司 一种小区测量方法及相关装置

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