WO2015109750A1 - 一种mbms最小化路测方法及接入设备 - Google Patents

一种mbms最小化路测方法及接入设备 Download PDF

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Publication number
WO2015109750A1
WO2015109750A1 PCT/CN2014/080642 CN2014080642W WO2015109750A1 WO 2015109750 A1 WO2015109750 A1 WO 2015109750A1 CN 2014080642 W CN2014080642 W CN 2014080642W WO 2015109750 A1 WO2015109750 A1 WO 2015109750A1
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Prior art keywords
mbms
terminal
mbsfn
mdt
access device
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PCT/CN2014/080642
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English (en)
French (fr)
Inventor
李大鹏
马子江
卢忱
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中兴通讯股份有限公司
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Publication of WO2015109750A1 publication Critical patent/WO2015109750A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • 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 minimized drive test method and an access device that support the MBMS function.
  • the Third Generation Partnership Projects (3GPP, Third Generation Partnership Projects) (UTRAN, Universal Terrestrial Radio Access Network, including Base Station Nodes) Version 10 (Release-10) of B and Radio Network Controller (RNC) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN) systems began to introduce minimization of drive test ( MDT, Minimization of Drive Test) function.
  • the core network (CN, Core Network) corresponding to the UTRAN includes a Home Subscriber Server (HSS), a Mobile Switching Centre Server (MSC Server), and a GPRS Support Node (SGSN, Serving GPRS Support Node, GPRS - General Packet Radio Service - General Packet Radio Service).
  • HSS Home Subscriber Server
  • MSC Server Mobile Switching Centre Server
  • SGSN Serving GPRS Support Node
  • GPRS - General Packet Radio Service General Packet Radio Service
  • the core network CN corresponding to the E-UTRAN includes a host user server HSS, a mobility management entity (MME, Mobile Management Entity), and the like.
  • MME mobility management entity
  • the minimization of the drive test function uses the user equipment (UE, User Equipment, or terminal) to automatically collect measurement information and report it to the radio access network (RAN, Radio Access Network) through the control plane (Control Plane).
  • RAN Radio Access Network
  • Control Plane the control plane
  • the eNB is reported to the Trace Collection Entity (TCE) of the Operation and Maintenance system through the radio access network for network optimization, such as discovering and resolving the network. Cover the issue.
  • TCE Trace Collection Entity
  • the MDT function is divided into Management Based MDT and Signaling Based MDT.
  • the management process of the management-based MDT is usually (in the case of the E-UTRAN system, the following is the same).
  • the OAM Operaational Maintenance or Network Management System
  • the activation process of the signaling-based MDT is to send, by the OAM, a Trace Session activation message including an MDT configuration to the HSS (Home Subscriber Server) to activate the MDT measurement of the designated UE, and the HSS sends the MDT configuration information of the UE to the
  • the MME sends the MDT configuration information of the UE to the eNB, and the eNB finally sends the MDT configuration information to the UE.
  • Signaling-based MDT usually uses an International Mobile Subscriber Identity (IMSI) or International Mobile Station Equipment Identity (IMEI) to specify a UE, or add area information to restrict UEs. s Choice.
  • IMSI International Mobile Subscriber Identity
  • IMEI International Mobile Station Equipment Identity
  • the management-based MDT and signaling-based MDT activation messages contain Trace Reference information from the OAM, including Public Land Mobile Network (PLMN) information, by Mobile country code (Mobile country code, MCC) and Mobile Network Code (MNC).
  • PLMN Public Land
  • the MDT function can be divided into two working modes according to its working in idle state and working in connected state, namely "Logged MDT", and "immediate minimization” (immediate MDT).
  • the record minimized drive test refers to the UE in the radio resource control idle state (for the E-UTRAN system refers to the RRC_IDLE state; for the UTRAN system also includes the cell-paging channel state (CELL PCH) and the UTRAN registration area_paging channel state ( URA_PCH ) ).
  • CELL PCH cell-paging channel state
  • URA_PCH UTRAN registration area_paging channel state
  • the UE collects relevant measurement information in the RRC connection state (referred to as the RRC-CONNECTED state for the E-UTRAN system; and refers to the cell-dedicated channel state (CELL-DCH) for the UTRAN system) and reports that the report is satisfied.
  • the condition is actively uploaded to the Radio Access Network (RAN).
  • the Radio Access Network (RAN) aggregates or directly reports the report to the TCE.
  • MDT only supports MDT measurement based on unicast (unicast) signal, but does not support measurement based on multicast signal, ie: MDT function for MBMS is not supported, on the other hand, related technology has been provided.
  • Some measurements of MBMS performance are measured, such as multicast single frequency network reference signal received power (MBSFN RSRP), multicast single frequency network reference signal received quality (MBSFN RSRQ), and multicast channel loss rate (MCH BLER).
  • MBSFN RSRP is defined as the MBSFN reference in the measurement frequency bandwidth with reference to the description in 3GPP document R1-135918.
  • MBSFN RSRQ is defined as the ratio of MBSFN RSRP and received signal strength indication
  • MBSFN BLER is defined as the cyclic redundancy check (CRC) based on the evaluation multicast channel (MCH) transport block.
  • CRC cyclic redundancy check
  • the terminal accepts the MBMS service at a certain frequency (for example, an MBSFN), the measurement of the frequency can be measured. If the operator analyzes the measurement information, the actual deployment of the MBMS service can be known, for example, whether There is a service hole, and there is a need to enable and disable several MBMS cells for a certain MBSFN (Multicast Single Frequency Network).
  • MBSFN Multicast Single Frequency Network
  • the MDT function in the 3GPP version does not support the MBMS service.
  • the base station when performing the management-based MDT (management MDT) to measure the MBMS service, the base station cannot determine which terminals support the MBMS, and does not know which terminals the terminal is receiving.
  • the MBMS service cannot determine the frequency of the service that the MBMS terminal is accepting. This is because the current MBMS terminal does not report the MBMS capability (MBMS capability), so the base station cannot know which terminals support the MBMS capability; the terminal may not report the frequency of the received service, and the like, so the base station cannot configure tasks such as frequency-based MDT measurement.
  • the related art records that the MDT does not support the configuration measurement, and the terminal receives all the measurement quantities agreed by the default measurement protocol after receiving the configuration, and in the MBMS measurement, especially the error rate BLER measurement cannot be measured without accepting the corresponding MBMS service. Therefore, it is necessary to flexibly configure to support the MBMS service.
  • the MBSFN areas can overlap and the measured values provided by the terminal are provided to the TCE, the TCE cannot distinguish the measured values of different MBSFN areas, which is not provided in the related art.
  • the access device acquires the terminal MBMS information, and selects the terminal for the required multicast/multicast single frequency network (MBSFN) area or according to the required multicast channel (MCH) channel, and the configuration is selected.
  • the selected terminal executes the MBMS MDT.
  • the access device acquires the terminal MBMS information by using any one of the following methods:
  • the access device acquires the terminal MBMS information after the base station obtains the minimization of the drive test activation message or after the base station obtains the minimization drive test activation message.
  • the terminal MBMS information is identifier information of an MBMS service that the terminal is receiving and/or interested in receiving on the access device.
  • the identifier information of the MBMS service includes any one or any combination of the following:
  • Frequency point identifier MBSFN area identifier, MBMS service area identifier, and service identifier.
  • the required MBSFN area refers to an MBSFN area that the operator needs to obtain.
  • configuring the selected terminal to execute the corresponding MBMS MDT includes: configuring the selected terminal to measure the multicast single frequency network.
  • the required MCH channel refers to: one or more PMCH channels that the operator needs to obtain when the multiple physical multicast channel (PMCH) channels are included in the MBSFN area.
  • PMCH physical multicast channel
  • configuring the selected terminal to execute the MBMS MDT includes:
  • MBSFN BLER multicast single-frequency network error rate
  • the foregoing method further includes:
  • the network management configures different MBMS measurements for different access zone devices for different MBSFN areas.
  • the foregoing method further includes:
  • the access device reports a measurement report, where the MBSFN number and/or the MBMS service area number (SA) corresponding to the measured value are included.
  • SA MBMS service area number
  • the foregoing method further includes:
  • the access device selects a suitable terminal for the management-based MDT based on the MBSM information.
  • the foregoing method further includes:
  • the access device checks the signaling based MDT based on the MBSM information.
  • the terminal selected by the access device configuration performs MBMS MDT:
  • the access device configures the terminal to perform an immediate minimization of the drive test, or to record a minimized drive test.
  • An embodiment of the present invention further discloses an access device, including:
  • a first unit configured to: obtain terminal media broadcast multicast service (MBMS) information, and select a terminal for a desired multicast/multicast single frequency network (MBSFN) area or according to a required multicast channel (MCH) channel ;
  • MBMS terminal media broadcast multicast service
  • MCSFN multicast/multicast single frequency network
  • MCH required multicast channel
  • the second unit is configured to: configure the selected terminal to perform a corresponding MBMS Minimized Path Test (MDT).
  • MDT MBMS Minimized Path Test
  • the first unit obtains the terminal MBMS information by using any one of the following methods:
  • the first unit is configured to: obtain the terminal MBMS information after the base station obtains the minimization of the drive test activation message, or after the base station obtains the minimized drive test activation message.
  • the terminal MBMS information is identifier information of an MBMS service that the terminal reports to the access device that the terminal is receiving and/or is interested in receiving.
  • the identifier information of the MBMS service includes any one of the following or random combination:
  • Frequency point identifier MBSFN area identifier, MBMS service area identifier, and service identifier.
  • the required MBSFN area refers to an MBSFN area that the operator needs to obtain.
  • the second unit when the first unit is configured to select a terminal according to the MBMS information and for the required MBSFN area, the second unit is configured to configure the selected terminal to perform the MBMS MDT in the following manner. :
  • MBSFN RSRP multicast single frequency network reference signal received power
  • MBSFN RSRQ multicast single frequency network reference signal received quality
  • the required MCH channel refers to: one or more PMCH channels that the operator needs to obtain when multiple physical multicast channel (PMCH) channels are included in the MBSFN area.
  • PMCH physical multicast channel
  • the accessing the second unit is configured to be configured in the following manner.
  • the terminal executes the corresponding MBMS MDT:
  • MBSFN BLER multicast single frequency network error rate
  • the foregoing apparatus further includes:
  • the configuration unit is configured to:
  • the storage network management is a different MBMS measurement configured by the access device for different MBSFN areas.
  • the foregoing apparatus further includes:
  • the reporting unit is configured to: report a measurement report, where the measurement report includes an MBSFN number corresponding to the measured value and/or an MBMS service area number (SA).
  • SA MBMS service area number
  • the second unit is configured to configure the terminal to perform a corresponding MBMS MDT in the following manner:
  • the second unit configures the terminal to perform an immediate minimization of the drive test, or to record a minimized drive test.
  • the MDT supporting the MBMS service can be implemented by using the solution of the embodiment of the present application.
  • FIG. 1 is a diagram showing an example of a method according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of a management-based MDT in the embodiment
  • FIG. 3 is a schematic diagram of a terminal reporting MBMS information through an RRC establishment process
  • FIG. 4 is a schematic diagram of 4 MBMS information on a terminal through an RRC reconfiguration process
  • Figure 5 is a schematic diagram of the MBMS information reported by the terminal through the MBMS interest process
  • FIG. 6 is a schematic diagram of a process of obtaining a terminal MBMS by an access network through an MBMS counting process
  • FIG. 7 is a flowchart of an MDT based on signaling in the embodiment.
  • This embodiment provides an MBMS minimization path test method, as shown in FIG. 1, including the following operations:
  • the access device obtains the terminal MBMS information.
  • the access device selects a suitable terminal for the required MBSFN area or according to the required MCH channel, and configures the terminal to execute the corresponding MBMS MDT.
  • the network side (that is, the access device) can obtain the terminal MBMS information by using any of the following processes:
  • the required MBSFN area is: in which MBSFN area (MBSFN area), ie: when the operator needs to obtain coverage of which MBSFN area; the measurement of its MBMS MDT is generally: MBSFN RSRP, and/or MBSFN RSRQ;
  • the required MCH channel refers to: In a certain MBSFN area, when multiple PMCH channels are included At the time, the operator wants to obtain the signal quality of one or more of the PMCH channels in order to configure appropriate modulation and coding strategy (MCS) parameters.
  • MCS modulation and coding strategy
  • the MBMS MDT measurement is generally: MBSFN BLER.
  • the terminal MBMS information refers to the identifier information of the MBMS service that the terminal reports to the access device that it is receiving and/or interested in receiving.
  • the identification information of the MBMS service includes any one or any combination of the following identifiers: a frequency point identifier, an MBSFN area identifier, an MBMS service area identifier, and a service identifier.
  • the access device obtains the terminal MBMS information before the base station obtains the minimization of the drive test activation message, or after the base station obtains the most d, the drive test activation message;
  • the network management system can configure different MBMS measurements.
  • the measurement report reported by the access device includes the MBSFN number and/or the MBMS service area number (SA) corresponding to the measured value;
  • the access device selects a suitable terminal for the management-based MDT according to the MBSM information; the access device checks the signaling-based MDT according to the MBSM information;
  • Executing the corresponding MBMS MDT means performing an immediate minimization of the drive test or performing a record minimization drive test.
  • FIG. 2 Take Figure 2 as an example to illustrate the immediate (Mouse-based) minimization of the drive test process under Management-based MDT ( Management based).
  • the process includes the following steps 201a to 207a.
  • Step 201a The access device acquires MBMS related information of the terminal
  • the obtained method can be actively reported by the terminal or actively accessed by the access device.
  • the terminal may actively carry the MBMS information in the process of accessing the network, as shown in FIG. 3, and the process of establishing a radio resource connection for the base station in the related art (refer to the protocol 36.331). .
  • the terminal may also carry the MBMS information in the RRC connection request (RRC connction request) message. This process is shown in FIG. 4.
  • the terminal may complete the RRC connection reconfiguration complete message (RRC connectionReconfigurationComplete) message. Carry MBMS information.
  • the terminal actively carries the MBMS information in the MBMSInterestlndication message in the MBMS interesting indication process of the related art in the process shown in FIG.
  • the access device may also initiate a process to obtain the MBMS information of the terminal.
  • the access device may be active for the MDT function of the MBMS based on the MBMS counting process of the related technology. The process is started, and the terminal carries the MBMS information in the MBMS count response (MBMS countingresponse) message.
  • the terminal and the access device can also use other and new processes to exchange MBMS information, for example, using the new message to actively request the terminal to access the information, or the terminal actively uploading the MBMS information.
  • the access device obtains the terminal MBMS information and saves it in the terminal context.
  • Step 202a The EM triggers the access device to activate the trace session.
  • the Immediate (MT) MDT sends an activation message to trigger the MDT measurement for MBMS.
  • the network management configuration can use an explicit configuration.
  • the configuration contains MBMS service measurement requirements, such as those that need to be measured.
  • MBSFN area list for each MBSFN that needs to be measured, or also includes a list of multicast channels (MCH) to be measured;
  • MCH multicast channels
  • the configuration may further include a measurement quantity parameter, for example, an MBSFN signal that needs to be measured for each MBSFN area, indicating that MBSFN RSRP and/or MBSFN RSRQ of a certain/some MBSFN area needs to be measured, and several measurements are required for each MBSFN area.
  • the multicast channel indicating whether to measure the MCH BLER, or by default, it is considered that the MCH BLER needs to be measured as long as the multicast channel MCH to be measured is configured;
  • the configuration may also include a measurement cycle, a total number of measurements, and the like;
  • Step 203a The access device selects an MBMS terminal.
  • the access device according to the measurement requirements obtained in step 202 (the MBSFN to be measured and each
  • the MCH that needs to be measured under the MBSFN, and the MBMS information of the terminal obtained from the step 201 selects an appropriate MBMS terminal.
  • the network management system needs to measure the RSRP and the RSRQ in a certain MBSFN, and the access device can query the context information of the terminal according to the requirement. And choose the right terminal.
  • Step 204a The access device configuration terminal MDT measurement
  • This example is based on the immediate MDT mode.
  • the measurement quantity needs to be clearly measured during configuration.
  • the MBSFN number to be measured and the measurement quantities such as RSRP and RSRQ are configured for the terminal. Add new measurements such as M6.
  • the configuration can use RRC to measure messaging, adding new fields to the MBMS in the message, such as the innovative measurement M6, or you can use the new messaging configuration.
  • Step 205a The UE starts an immediate MDT measurement.
  • the UE performs measurement according to the configuration, and adds the corresponding MBSFN number and the MBMS service area number (SA) to which the measurement result of each measurement quantity is.
  • SA MBMS service area number
  • the UE measures the RSRP and RSRQ values of a certain frequency under a certain MBSFN, and records the value after completion, and adds the MBSFN number and the service area number information corresponding to the frequency, and the information can help the TCE to distinguish different MBSFNs. Measured value.
  • Step 206a The UE measurement is completed, and the access network is configured to report the MDT measurement.
  • Step 207a The access device that receives the measurement report of the UE selects an appropriate TCE device, and reports the valid MDT measurement report to the TCE device.
  • This step reports the measurement report to the TCE device using the related technology.
  • the measurement report contains information such as the MBMS measurement value and its corresponding MBSFN number and service area number.
  • Step 201b The access device acquires the terminal MBMS related information.
  • the foregoing step 201b can refer to the example one step 201a.
  • the access device obtains the terminal MBMS information and saves it in the terminal context.
  • Step 202b The EM triggers the access device to activate the trace session.
  • Step 202b can refer to the example one step 202a.
  • Step 203b The access device selects an MBMS terminal.
  • the MDT is recorded.
  • the NMS sends an activation message to trigger the MDT measurement on the MBMS.
  • the network management configuration can use an explicit configuration or an implicit configuration.
  • the configuration includes MBMS service measurement requirements, such as a list of MBSFN areas to be measured, for each MBSFN to be measured, or a list of multicast channels (MCH) to be measured;
  • MCH multicast channels
  • the configuration may further include a measurement quantity parameter, for example, for each MBSFN that needs to be measured, indicating that MBSFN RSRP and/or MBSFN RSRQ need to be measured, for each multicast channel that needs to be measured, indicating whether to measure MCH BLER, or by default, as long as The MCH BLER needs to be measured when the multicast channel MCH that needs to be measured is configured.
  • a measurement quantity parameter for example, for each MBSFN that needs to be measured, indicating that MBSFN RSRP and/or MBSFN RSRQ need to be measured, for each multicast channel that needs to be measured, indicating whether to measure MCH BLER, or by default, as long as The MCH BLER needs to be measured when the multicast channel MCH that needs to be measured is configured.
  • the configuration may also include a measurement cycle, a total number of measurements, and the like;
  • the NMS only indicates that the MDT measurement of the MBMS needs to be performed, and the access device and the network side measure the RSRP and/or RSRQ in the MBSFN area acceptable to the terminal according to the pre-agreed measurement amount, for each The terminal in MBSFN is receiving the error rate (MCH BLER) of the MBMS service for measurement.
  • MCH BLER error rate
  • the terminal can accept too many MBSFN areas, it is possible to pre-determine only a limited number of measurements, for example, four MBSFNs, and the other MBSFNs are no longer measured.
  • Step 204b access device configuration terminal MDT measurement
  • This example is based on the method of recording the MDT.
  • Step 205b The UE starts logging (logged) the MDT measurement when entering the idle state
  • the UE performs measurement according to the configuration, and adds the corresponding MBSFN number and the MBMS service area number (SA) to the measurement result of each measurement quantity, and adds the corresponding MCH number information to the MCH measurement value under each MBSFN.
  • SA MBMS service area number
  • the UE measures the RSRP and RSRQ values of a certain frequency under a certain MBSFN, and records the value after completion, and adds the MBSFN number and the service area number information corresponding to the frequency, and the information can help the TCE to distinguish different MBSFNs. Measured value.
  • Step 206b The UE measurement is completed, and the access network reports the MDT measurement report.
  • the UE when the UE enters the connected state, the UE indicates to the access network that the terminal saves the MDT measurement report; and obtains the access of the MDT measurement result.
  • the device acquires the MDT measurement 4 report through the terminal acquisition information (UE information flow) of the related technology.
  • Step 207b The access device that receives the measurement report of the UE selects a suitable TCE device, and reports the valid MDT measurement report to the TCE device.
  • This step reports the measurement report to the TCE device using the related technology.
  • the measurement report contains information such as the MBMS measurement value and its corresponding MBSFN number and service area number.
  • FIG. 7 uses FIG. 7 as an example to illustrate an immediate minimization of the road test process based on signaling (Signaling based).
  • the process includes the following steps 701a through 705a.
  • Step 701a The network management (EM) trigger minimizes the drive test and sends an MDT message to the location register (HSS) network element.
  • the MDT configuration message may be a Trace Session Activation message.
  • the configuration includes MBMS service measurement requirements, such as a list of MBSFN areas to be measured, for each MBSFN to be measured, or a list of multicast channels (MCH) to be measured; the configuration may also include measurement parameters, for example, for each The MBSFN that needs to be measured indicates that it is necessary to measure the MBSFN RSRP and/or the MBSFN RSRQ. For each multicast channel that needs to be measured, it indicates whether to measure the MCH BLER. It can also be considered by default to be measured only if the multicast channel MCH to be measured is configured. MCH BLER;
  • the configuration can also include measurement cycles, total number of measurements, and other related configurations.
  • Step 702a After the location register (HSS) retrieves that the UE is in the attached state, it sends an MDT configuration message to the core network element where the UE is located.
  • HSS location register
  • the core network element is
  • the core network element if it is a UTRAN network, the core network element is an SGSN or an MSC server; for example, when the core network element is the MME, the message carrying the MDT configuration is an update location answer.
  • Step 703a The core network element sends an MDT configuration message to the base station.
  • the base station is an eNB, and if it is a UTRAN network, the base station is an RNC;
  • the message carrying the MDT configuration is an Initial context setup request message. If it is a UTRAN PS domain, the message carrying the minimized drive test configuration is CN invoke Trace. Message
  • Step 704a The access device acquires the terminal MBMS related information.
  • This step can refer to the example one step 201a;
  • Step 705a The base station receives the MDT configuration message sent by the core network element, and checks whether the terminal is allowed to perform MBMS measurement.
  • the base station checks whether the terminal satisfies the MDT measurement requirement according to the MDT configuration information obtained in step 703 and the MBMS information obtained in step 4. If the terminal cannot be satisfied, the base station can abort this MDT measurement.
  • the base station suspends the MDT measurement.
  • the configuration request requires the terminal to measure the BLER of the MCH under a certain MBSFN, but the terminal is not interested and/or does not accept the MBSFN service, so the MDT measurement cannot be performed.
  • the base station can suspend the MDT measurement.
  • FIG. 7 is still taken as an example to illustrate the recording based on signaling (Signing based)
  • the process includes the following steps 701b to 704b.
  • Step 701b The network management (EM) trigger minimizes the drive test and sends an MDT message to the location register (HSS) network element.
  • the MDT configuration message may be a Trace Session Activation message.
  • the network management configuration can use the explicit configuration mode or the implicit configuration mode.
  • the configuration includes MBMS service measurement requirements, such as a list of MBSFN areas to be measured, for each MBSFN to be measured, or a list of multicast channels (MCH) to be measured;
  • the configuration may further include a measurement quantity parameter, for example, for each MBSFN that needs to be measured, indicating that MBSFN RSRP and/or MBSFN RSRQ need to be measured, for each multicast channel that needs to be measured, indicating whether to measure MCH BLER, or by default, as long as The MCH BLER needs to be measured when the multicast channel MCH that needs to be measured is configured.
  • the configuration may also include a measurement cycle, a total number of measurements, and the like;
  • the network management only indicates that the MDT measurement of the MBMS needs to be performed, and the access device and the network side measure the RSRP and/or RSRQ in the MBSFN area acceptable to the terminal according to the pre-agreed measurement amount, The terminal within each MBSFN is accepting the error rate (MCH BLER) of the MBMS service for measurement.
  • MCH BLER error rate
  • the terminal can accept too many MBSFN areas, it is possible to pre-determine only a limited number of measurements, for example, four MBSFNs, and the other MBSFNs are no longer measured.
  • Step 702b After the location register (HSS) retrieves that the UE is in the attached state, it sends an MDT configuration message to the core network element where the UE is located.
  • HSS location register
  • the core network element in the case of an E-UTRAN network, the core network element is an MME; if it is a UTRAN network, the core network element is an SGSN or an MSC server; for example, when the core network element is an MME, carrying the MDT
  • the configured message is the update location answer.
  • Step 703b The core network element sends an MDT configuration message to the base station.
  • the base station if it is an E-UTRAN network, the base station is an eNB, and if it is a UTRAN network, the base station is an RNC;
  • the message carrying the MDT configuration is an Initial context setup request message. If it is a UTRAN PS domain, the message carrying the minimized drive test configuration is CN invoke Trace. Message
  • Step 704b The access device acquires the terminal MBMS related information.
  • This step can refer to the example one step 201a;
  • Step 705b The base station receives the MDT configuration message sent by the core network element, and checks whether the terminal allows the MBMS measurement to be performed.
  • the base station checks whether the terminal satisfies the MDT measurement requirement according to the MDT configuration information obtained in step 703b and the MBMS information obtained in step 704b. If the terminal cannot be satisfied, the base station can This MDT measurement is stopped. For example, in the case of an explicit configuration, the base station checks one by one whether the terminal satisfies the explicit configuration. For example, in an implicit configuration, the base station needs to check whether the tested terminal meets the pre-agreed configuration requirements.
  • the base station suspends the MDT measurement.
  • the configuration request requires the terminal to measure the BLER of the MCH under a certain MBSFN, but the terminal is not interested and/or does not accept the MBSFN service, so the MDT measurement cannot be performed.
  • the base station can suspend the MDT measurement.
  • This step reports the measurement report to the TCE device using the related technology.
  • the measurement report contains information such as the MBMS measurement value and its corresponding MBSFN number and service area number.
  • This embodiment provides an access device, which can implement the method in Embodiment 1 above.
  • the device includes at least the following units:
  • a first unit acquiring terminal media broadcast multicast service (MBMS) information, and selecting an appropriate terminal for a desired multicast/multicast single frequency network (MBSFN) area or according to a required multicast channel (MCH) channel;
  • the first unit can obtain the terminal MBMS information by any of the following methods: MBMS counting process, that is, the MBMS statistical process;
  • MBMS interest indication process ie MBMS interest process
  • the first unit may acquire the terminal MBMS information before the base station obtains the minimization of the drive test activation message or after the base station obtains the minimized drive test activation message.
  • the above-mentioned terminal MBMS information is identification information of the MBMS service that the terminal reports to the access device that it is receiving and/or interested in receiving.
  • the identification information of the MBMS service includes any one or any combination of the following identifiers:
  • the second unit configures the terminal to perform a corresponding MBMS Minimized Drive Test (MDT).
  • MDT MBMS Minimized Drive Test
  • the first unit selects a suitable terminal according to the MBMS information and for the required MBSFN area
  • the second unit configures the terminal to perform a corresponding MBMS MDT finger: configuring the terminal to measure the multicast single frequency network reference signal receiving power (MBSFN) RSRP) and/or multicast single frequency network reference signal reception quality (MBSFN RSRQ).
  • MBSFN multicast single frequency network reference signal receiving power
  • MBSFN RSRQ multicast single frequency network reference signal reception quality
  • the required MBSFN area refers to the MBSFN area that the operator needs to obtain.
  • the second unit configures the selected terminal to perform the corresponding MBMS MDT finger: configuring the selected terminal to measure the multicast single frequency network error rate (MBSFN BLER) ).
  • the required MCH channel refers to: one or more PMCH channels that the operator needs to obtain when a plurality of physical multicast channel (PMCH) channels are included in a certain MBSFN area.
  • the device further includes: a configuration unit, configured to store, by the network management device, different MBMS measurement amounts configured for different MBSFN areas of the access device.
  • the device further includes: a reporting unit that reports a measurement report, where the measurement report includes an MBSFN number corresponding to the measured value and/or an MBMS service area number (SA).
  • a reporting unit that reports a measurement report, where the measurement report includes an MBSFN number corresponding to the measured value and/or an MBMS service area number (SA).
  • SA MBMS service area number
  • the second unit configures the selected terminal to execute the corresponding MBMS MDT finger: Configure the selected terminal to perform immediate minimization of the drive test, or record the minimized drive test.
  • the embodiment of the present invention further provides a computer program, including program instructions, when the program instruction is executed by an access device, so that the master node can execute the method described in the foregoing embodiment.
  • Embodiments of the present invention also provide a carrier carrying the computer program.
  • the embodiment of the present invention can implement an MDT that supports MBMS services.

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Abstract

一种支持MBMS功能的最小化路测方法及接入设备,该方法包括:接入设备获取终端MBMS信息,并针对所需多播/组播单频网络(MBSFN)区域或者根据所需多播信道(MCH)信道,选择终端,配置所选择的终端执行 MBMS MDT。

Description

一种 MBMS最小化路测方法及接入设备 技术领域
本发明涉及通信领域,尤其涉及一种支持 MBMS功能的最小化路测方法 及接入设备。
背景技术
为了降低运营商利用专用设备进行人工路测的成本和复杂性, 第三代伙 伴组织计划( 3GPP, Third Generation Partnership Projects )在通用陆地无线接 入网(UTRAN, Universal Terrestrial Radio Access Network, 包括基站 Node B 和无线网络控制器 RNC )和演进的通用陆地无线接入网( E-UTRAN, Evolved Universal Terrestrial Radio Access Network, 包括演进基站 eNB ) 系统的版本 10 ( Release- 10 )开始引入最小化路测(MDT, Minimization of Drive Test )功 能。 UTRAN对应的核心网(CN, Core Network )包括宿主用户服务器( HSS, Home Subscriber Server )、移动交换中心服务器( MSC Server , Mobile Switching Centre Server )、服务的 GPRS支持节点( SGSN, Serving GPRS Support Node, GPRS - General Packet Radio Service - 通用分组无线业务)等。 E-UTRAN对 应的核心网 CN 包括宿主用户服务器 HSS、 移动管理实体(MME, Mobile Management Entity )等。最小化路测功能利用用户设备 ( UE , User Equipment , 或称为终端) 自动收集测量信息通过控制面(Control Plane )信令报告给无线 接入网 (RAN, Radio Access Network, 对于 UTRAN 系统指 RNC, 对于 E-UTRAN系统指 eNB ) , 再通过无线接入网报告给操作维护系统( ΟΑΜ, Operation And Maintenance )的跟踪收集实体 ( TCE, Trace Collection Entity ) , 用于网络优化, 例如发现及解决网络覆盖问题。
MDT功能分为基于管理的 MDT ( Management based MDT )和基于信令 的 MDT ( Signaling based MDT ) 。 基于管理的 MDT的激活过程通常是 (以 E-UTRAN 系统为例, 以下均同) OAM (操作维护或称网管系统)发送包含 MDT配置的跟踪激活消息 ( Trace session activation )给 eNB, eNB在该消息 规定的区域(Area ) 内选择合适的 UE, 并将所述 MDT配置信息发送给选中 的 UE。 基于信令的 MDT的激活过程是由 OAM发送包含 MDT配置的跟踪 激活消息 ( Trace session activation )给 HSS ( Home Subscriber Server )以激活 指定 UE的 MDT测量, HSS将所述 UE的 MDT配置信息发送给 MME, MME 将该 UE的 MDT配置信息发送给 eNB, eNB最终将 MDT配置信息发送给 UE。 基于信令的 MDT通常用国际移动用户标识( IMSI, International Mobile Subscriber Identity )或国际移动 占设备标 i只 ( IMEI, International Mobile Station Equipment Identity )来指定某个 UE, 或加上区域信息以限制 UE的选择。 基 于管理的 MDT和基于信令的 MDT激活消息中包含来自 OAM的跟踪参考 ( Trace Reference )信息, 其中包括公共陆地移动网络(Public Land Mobile Network, PLMN )信息, 由移动国家码 ( Mobile country code, MCC )和移 动网络码(Mobile Network code, MNC )组成。
MDT功能按照其工作在空闲态和工作在连接态可以分为两种工作模式, 分别为 "记录最小化路测 (Logged MDT ),,和 "立即最小化路测 (immediate MDT ),,。 记录最小化路测指 UE在无线资源控制空闲状态 (对于 E-UTRAN 系统指 RRC— IDLE 状态; 对于 UTRAN 系统还包括小区—寻呼信道状态 ( CELL PCH )和 UTRAN注册区 _寻呼信道状态 (URA_PCH ) ) 。 当所配 置的条件满足时收集并存储相关测量信息用于将来收到无线接入网 (RAN)命 令要求时上报, 无线接入网 (RAN )收到所述数据后, 汇总或者直接转发给 TCE。 立即最小化路测指 UE在无线资源控制连接状态(对于 E-UTRAN系统 指 RRC— CONNECTED 状态; 对于 UTRAN 系统指小区—专用信道状态 ( CELL— DCH ) ) 时收集相关测量信息并在报告满足上报条件时主动上传给 无线接入网 (RAN), 无线接入网 (RAN)接收到报告后, 汇总或者直接将报告传 递给 TCE。
相关协议版本中 MDT仅支持基于单播( unicast )信号的 MDT测量, 但 不支持基于多播(multicast )信号的测量, 即: 不支持针对 MBMS 的 MDT 功能, 而另一方面, 相关技术已经提供了测量 MBMS性能的一些测量量, 例 如组播单频网参考信号接收功率(MBSFN RSRP ) , 组播单频网参考信号接 收质量(MBSFN RSRQ ) , 多播信道丟包率(MCH BLER ) 。 参考 3GPP文 稿 R1-135918中的描述, MBSFN RSRP定义为测量频率带宽中 MBSFN参考 信号所在资源单元( resource element ) 的功率线性平均值, MBSFN RSRQ定 义为 MBSFN RSRP和接受信号强度指示的比率, MBSFN BLER定义为基于 评估组播信道(MCH )传输块的循环冗余检查(CRC )结果, 该值为一个测 量周期内的比率, 比率的分母为 MCH传输块的总数, 比率的分子为 CRC错 误的 MCH传输块数目。这些测量只能在终端正在解开物理组播信道( PMCH ) 的子帧 ( subframe )和频率 ( carrier )上进行。
终端如果在某频点上(例如某个 MBSFN )接受 MBMS业务, 则可以测 量该频点的测量量, 运营商如果对这些测量量信息的分析, 可以获知 MBMS 业务的实际部署情况, 例如判断是否存在业务空洞, 是否存在需要为某 MBSFN (组播单频网 )开启和关闭若干 MBMS小区等。
从上述内容可以看出, 3GPP版本中 MDT功能并未支持 MBMS业务, 其次在执行基于管理的 MDT ( management MDT )对 MBMS业务测量时, 基 站无法判断哪些终端支持 MBMS, 也不知道终端正在接收哪些 MBMS业务, 同时也无法判断 MBMS终端正在接受的业务所在的频率等信息。这是因为目 前 MBMS终端不上报 MBMS能力 (MBMS capability ) , 因此基站无法知道 哪些终端支持 MBMS能力; 终端也可以不上报所接收业务的频率等信息, 因 此基站无法配置基于频率的 MDT测量等任务。 此外, 相关技术中记录 MDT 不支持配置测量量, 终端在接受到配置后默认测量协议约定的所有测量量, 而 MBMS测量中尤其误码率 BLER测量在没有接受对应 MBMS业务下是无 法测量的, 因此有必要灵活配置以支持 MBMS业务。 最后, 由于 MBSFN区 域可以重叠,终端提供的测量值提供给 TCE之后, TCE无法区分不同 MBSFN 区域的测量值, 该问题在相关技术中并未提供。
发明内容
本发明实施例提供一种 MBMS 最小化路测方法及接入设备, 以实现
MBMS业务的 MDT功能。
本发明实施例公开的一种 MBMS MDT方法, 包括:
接入设备获取终端 MBMS 信息, 并针对所需多播 /组播单频网络 ( MBSFN )区域或者根据所需多播信道(MCH )信道, 选择终端, 配置所选 择的终端执行 MBMS MDT。
可选地, 上述方法中, 所述接入设备通过如下任一方式获取终端 MBMS 信息:
MBMS统计流程;
MBMS 感兴趣流程;
新建流程。
可选地, 上述方法中, 所述接入设备在基站获得最小化路测激活消息之 前, 或者在基站获得最小化路测激活消息之后获取终端 MBMS信息。
可选地, 上述方法中, 所述终端 MBMS信息为终端向接入设备上 的其 正在接收和 /或感兴趣接收的 MBMS业务的标识信息。
可选地, 上述方法中, 所述 MBMS业务的标识信息包括如下任意一种或 任意组合:
频点标识、 MBSFN 区域标识、 MBMS业务区域标识、 业务标识。
可选地, 上述方法中, 所需 MBSFN 区域指运营商需要获得的 MBSFN 区域。
可选地, 上述方法中, 所述接入设备根据 MBMS 信息, 并针对所需 MBSFN区域选择终端时, 配置所选择的终端执行相应的 MBMS MDT包括: 配置所选择的终端测量组播单频网参考信号接收功率(MBSFN RSRP ) 和 /或组播单频网参考信号接收质量( MBSFN RSRQ ) 。
可选地, 上述方法中, 所需 MCH信道指: 在 MBSFN区域内, 当包括多 个物理组播信道(PMCH )信道时候, 运营商需要获得的一个或多个 PMCH 信道。
可选地,上述方法中,所述接入设备根据 MBMS信息,并针对所需 MCH 信道选择终端时, 配置所选择的终端执行 MBMS MDT包括:
配置所选择终端测量组播单频网误码率( MBSFN BLER ) 。
可选地, 上述方法还包括:
网管为所述接入设备针对不同的 MBSFN 区域配置不同的 MBMS 测量 量。 可选地, 上述方法还包括:
所述接入设备上报测量报告, 其中包含测量值对应的 MBSFN编号和 /或 MBMS业务区域编号 (SA ) 。
可选地, 上述方法还包括:
所述接入设备根据所述 MBSM信息为基于管理的 MDT选择合适的终 端。
可选地, 上述方法还包括:
所述接入设备根据所述 MBSM信息检查基于信令的 MDT。
可选地,上述方法中,所述接入设备配置所选择的终端执行 MBMS MDT 指:
所述接入设备配置所述终端执行立即最小化路测 ,或者记录最小化路测。 本发明实施例还公开了一种接入设备, 包括:
第一单元, 其设置为: 获取终端媒体广播多播业务(MBMS )信息, 并 针对所需多播 /组播单频网络(MBSFN ) 区域或者根据所需多播信道(MCH ) 信道, 选择终端;
第二单元, 其设置为: 配置所选择的终端执行相应的 MBMS 最小化路 测 ( MDT ) 。
可选地, 上述设备中, 所述第一单元通过如下任一方式获取终端 MBMS 信息:
MBMS统计流程;
MBMS 感兴趣流程;
新建流程。
可选地, 上述设备中, 所述第一单元是设置为: 在基站获得最小化路测 激活消息之前,或者在基站获得最小化路测激活消息之后获取终端 MBMS信 息。
可选地, 上述设备中, 所述终端 MBMS信息为终端向接入设备上报的该 终端正在接收和 /或感兴趣接收的 MBMS业务的标识信息。
可选地, 上述设备中, 所述 MBMS业务的标识信息包括如下任意一种或 任意组合:
频点标识、 MBSFN 区域标识、 MBMS业务区域标识、 业务标识。
可选地, 上述设备中, 所需 MBSFN 区域指运营商需要获得的 MBSFN 区域。
可选地, 上述设备中, 当所述第一单元是设置为根据 MBMS信息, 并针 对所需 MBSFN区域选择终端时, 所述第二单元是设置为以如下方式配置所 选择的终端执行 MBMS MDT:
配置所选择的终端测量组播单频网参考信号接收功率(MBSFN RSRP ) 和 /或组播单频网参考信号接收质量( MBSFN RSRQ ) 。
可选地, 上述设备中, 所需 MCH信道指: 在 MBSFN区域内, 当包括多 个物理组播信道(PMCH )信道时候, 运营商需要获得的一个或多个 PMCH 信道。
可选地, 上述设备中, 当所述第一单元是设置为根据 MBMS信息, 并针 对所需 MCH信道选择合适的终端时, 所述接入第二单元是设置为以如下方 式配置所选择的终端执行相应的 MBMS MDT:
配置所选择的终端测量组播单频网误码率( MBSFN BLER ) 。
可选地, 上述设备还包括:
配置单元, 其设置为: 存储网管为本接入设备针对不同的 MBSFN区域 配置的不同的 MBMS测量量。
可选地, 上述设备还包括:
上报单元, 其设置为: 上报测量报告, 所述测量报告包含测量值对应的 MBSFN编号和 /或 MBMS业务区域编号 ( SA ) 。
可选地, 上述设备中, 所述第二单元是设置为以如下方式配置所述终端 执行相应的 MBMS MDT:
所述第二单元配置所述终端执行立即最小化路测,或者记录最小化路测。
釆用本申请实施例的方案可实现支持 MBMS业务的 MDT。 附图概述
图 1为本发明实施例方法示例图;
图 2为本实施例中基于管理的 MDT流程图;
图 3为终端通过 RRC建立流程上报 MBMS信息示意图;
图 4为终端通过 RRC重配流程上 4艮 MBMS信息示意图;
图 5为终端通过 MBMS感兴趣 流程上报 MBMS信息示意图;
图 6为接入网通过 MBMS 计数流程获得终端 MBMS流程示意图; 图 7为本实施例中基于信令的 MDT流程图。
本发明的较佳实施方式
下文将结合附图对本发明实施例做详细说明。 需要说明的是, 在不冲突 的情况下 , 本申请的实施例和实施例中的特征可以任意相互组合。
实施例 1
本实施例提供一种 MBMS最小化路测方法,如图 1所示,包括如下操作:
S 102 , 接入设备获得终端 MBMS信息;
S104 ,接入设备针对所需 MBSFN区域或者根据所需 MCH信道,选择合 适的终端 , 配置该终端执行相应的 MBMS MDT。
其中, 网络侧 (即接入设备 )可以通过如下任一流程获得终端 MBMS信 息:
1 ) 网络侧启动 MBMS计数 ( counting ) 流程;
2 )终端通过 "MBMS 感兴趣指示 ( interest indication ) " 消息;
3 )其他新建流程等;
所需 MBSFN区域是指: 在哪个 /哪些 MBSFN区域( MBSFN area ), 即: 当运营商需要获得哪个 /哪些 MBSFN区域的覆盖情况时候; 其 MBMS MDT 的测量量一般为: MBSFN RSRP, 和 /或 MBSFN RSRQ;
所需 MCH信道是指: 在某个 MBSFN区域内, 当包括多个 PMCH信道 时候, 运营商想获得其中的一个或多个 PMCH信道的信号质量, 以便为其配 置合适的调制与编码策略(MCS )参数, 其 MBMS MDT的测量量一般为: MBSFN BLER。
所述终端 MBMS信息, 是指终端向接入设备上报的其正在接收和 /或感 兴趣接收的 MBMS业务的标识信息。
而 MBMS业务的标识信息包括如下标识的任意一个或任意组合: 频点标识、 MBSFN area标识、 MBMS业务区域标识、 业务标识。
接入设备获得终端 MBMS信息可以在基站获得最小化路测激活消息之 前, 也可以在基站获得最 d、化路测激活消息之后;
网管可以配置不同的 MBMS测量量。
接入设备上报的测量报告中包含测量值对应的 MBSFN编号和 /或 MBMS 业务区域编号(SA ) ;
接入设备根据所述 MBSM信息为基于管理的 MDT选择合适的终端; 接入设备根据所述 MBSM信息检查基于信令的 MDT;
执行相应的 MBMS MDT是指执行立即最小化路测或者执行记录最小化 路测。
下面结合应用实例, 说明上述实施例方法的实现过程。
实例一
以图 2 为例, 说明基于管理的 MDT ( Management based ) 下的立即 ( Immediate )最小化路测过程。 该过程包括如下步骤 201a至 207a。
步骤 201a: 接入设备获取终端 MBMS相关信息;
获取的方法可以为终端主动上报或接入设备主动获取。
其中, 对于终端主动上 4艮的情况, 终端可以在接入网络的流程中主动携 带上 MBMS信息, 此过程如图 3所示, 为相关技术中基站建立无线资源连接 的流程 (参考协议 36.331 ) 。
另夕卜, 终端也可以在 RRC连接请求( RRCconnctionrequest )消息中携带 MBMS信息, 此过程如图 4所示, 为相关技术的 RRC重配置流程中, 终端 可以在 RRC连接重配置完成( RRCconnectionReconfigurationComplete ) 消息 中携带 MBMS信息。
或者, 终端以图 5所示过程, 在相关技术的 MBMS感兴趣指示(MBMS interesting indication ) 流程中, 主动在 MBMSInterestlndication 消息中携带 MBMS信息。
对于接入设备主动获取的情况, 接入设备也可以主动发起流程以获取终 端的 MBMS信息, 如图 6所示, 为相关技术的 MBMS counting流程基础上, 接入设备可以为 MBMS的 MDT功能主动启动该流程,终端在 MBMS计数响 应 ( MBMScountingresponse ) 消息中携带 MBMS信息。
终端和接入设备同样可以使用其他和新的流程交互 MBMS信息,例如使 用新消息由接入设备主动要求终端上 ^艮信息, 或终端主动上 MBMS信息。
接入设备获取终端 MBMS信息后保存在终端上下文中。
步骤 202a: EM触发接入设备激活 trace会话;
本例为立即( Immediate ) MDT , 如图 2所示, 网管发送激活消息, 触发 对 MBMS的 MDT测量。 网管配置可以釆用显式的配置方式。
显式配置的情况下: 配置中包含 MBMS业务测量要求, 例如需要测量的
MBSFN区域列表, 对每个需要测量的 MBSFN, 或者还包括需要测量的组播 信道(MCH )列表;
配置中还可以包括测量量参数, 例如对每个 MBSFN 区域需要测量的 MBSFN信号, 指示需要测量某个 /某些 MBSFN区域的 MBSFN RSRP和 /或 MBSFN RSRQ, 对每个 MBSFN区域中若干个需要测量的组播信道, 指示是 否测量 MCH BLER, 也可以默认认为只要配置了需要测量的组播信道 MCH 就需要测量 MCH BLER;
配置中还可以包括测量周期, 测量总数等相关配置;
步骤 203a: 接入设备选择 MBMS终端;
接入设备依据步骤 202获得的测量要求(需要测量的 MBSFN以及每个
MBSFN下需要测量的 MCH ) , 以及从步骤 201中获得的终端的 MBMS信息 ( MBMS能力, 终端感兴趣和 /或正在接受的 MBSFN, 终端正接受的业务信 息等) , 选择合适的 MBMS终端。 例如步骤 202中网管要求测量某 MBSFN 下的 RSRP和 RSRQ, 则接入设备可以根据此要求查询终端的上下文信息, 并选择合适的终端。
步骤 204a: 接入设备配置终端 MDT测量;
本例属于基于立即 MDT 的方式, 配置时需要明确测量的测量量, 本例 中将需要测量的 MBSFN编号, 以及测量量例如 RSRP和 RSRQ配置给终端。 增加新的测量例如 M6。
配置可以使用 RRC测量消息传递, 在消息中为 MBMS增加新的字段例 如创新的测量 M6, 或者可以使用新的消息传递配置。
步骤 205a: UE启动立即 MDT测量;
UE根据配置进行测量, 对每个测量量的测量结果, 添加对应的 MBSFN 编号以及所属于的 MBMS服务区编号 ( SA ) 。
例如根据配置, UE测量某 MBSFN下的某频率的 RSRP和 RSRQ值, 完 成后记录所述值, 同时添加上该频率对应的 MBSFN编号和服务区编号信息 , 这些信息可以帮助 TCE分辨不同的 MBSFN下的测量值。
步骤 206a: UE测量完成, 接入网络 ^艮告 MDT测量 ^艮告;
根据相关技术, 当 UE通过 RRC测量消息反馈 MDT测量报告; 步骤 207a: 收到 UE的测量报告的接入设备选择合适的 TCE设备, 并将 有效的 MDT测量报告上报给所述 TCE设备。
该步骤使用相关技术, 将测量报告上报给 TCE设备。 测量报告中包含 MBMS测量值及其对应的 MBSFN编号以及服务区编号等信息。
实例二
仍以如图 2为例,说明基于管理( Management based )下的记录( logged ) MDT的过程。 该过程包括如下步骤 201b至 207b。
步骤 201b: 接入设备获取终端 MBMS相关信息
较佳地, 上述步骤 201b可参考实例一步骤 201a。
接入设备获取终端 MBMS信息后保存在终端上下文中。
步骤 202b: EM触发接入设备激活 trace会话;
较佳地, 上述步骤 202b可参考实例一步骤 202a。 步骤 203b: 接入设备选择 MBMS终端;
本例为记录 MDT, 如图 2所示, 网管发送激活消息, 触发对 MBMS的 MDT测量。 网管配置可以釆用显式的配置方式也可以釆用隐式的配置方式。
显式配置的情况下: 配置中包含 MBMS业务测量要求, 例如需要测量的 MBSFN区域列表, 对每个需要测量的 MBSFN, 或者还包括需要测量的组播 信道(MCH ) 列表;
配置中还可以包括测量量参数,例如对每个需要测量的 MBSFN,指示需 要测量 MBSFN RSRP和 /或 MBSFN RSRQ, 对每个需要测量的组播信道, 指 示是否测量 MCH BLER, 也可以默认认为只要配置了需要测量的组播信道 MCH就需要测量 MCH BLER;
配置中还可以包括测量周期, 测量总数等相关配置;
隐式配置的情况下: 网管仅仅指示需要进行 MBMS的 MDT测量, 接入 设备和网络侧按照预先约定的测量量对终端所能接受的 MBSFN 区域中的 RSRP和 /或 RSRQ进行测量,对每个 MBSFN内终端正接受 MBMS业务的误 码率(MCH BLER )进行测量。
优化的情况下, 如果终端可以接受到的 MBSFN区域过多, 可以预先约 定仅测量有限多个, 例如四个 MBSFN, 其他的 MBSFN就不再测量。
步骤 204b: 接入设备配置终端 MDT测量;
本例是基于记录 MDT的方式时, 配置时可以使用显式的方式配置终端, 例如配置需要测量的 MBSFN编号, 需要测量的 RSRP和 /或 RSRQ等信息; 可以使用 RRC 消息中 Loggedmeasurementconfiguration 消息, 在消息中为 MBMS增加新的字段, 或者还可以使用新的消息传递配置。
步骤 205b: UE在进入空闲态时启动记录( logged ) MDT测量;
UE根据配置进行测量, 对每个测量量的测量结果, 添加对应的 MBSFN 编号以及所属于的 MBMS服务区编号( SA ) , 对每个 MBSFN下的 MCH测 量值, 添加对应的 MCH编号信息。
例如根据配置, UE测量某 MBSFN下的某频率的 RSRP和 RSRQ值, 完 成后记录所述值, 同时添加上该频率对应的 MBSFN编号和服务区编号信息, 这些信息可以帮助 TCE分辨不同的 MBSFN下的测量值。 步骤 206b: UE测量完成, 接入网络 ^艮告 MDT测量 ^艮告; 根据相关技术,当 UE进入连接态时, UE向接入网指示本终端保存 MDT 测量报告;获得 MDT测量结果的接入设备通过相关技术的终端获取信息( UE information流程 )获取 MDT测量 4艮告。
步骤 207b: 收到 UE的测量报告的接入设备选择合适的 TCE设备, 并将 有效的 MDT测量报告上报给所述 TCE设备。
该步骤使用相关技术, 将测量报告上报给 TCE设备。 测量报告中包含 MBMS测量值及其对应的 MBSFN编号以及服务区编号等信息。
实例三
本实例以图 7为例, 说明基于信令(Signaling based )下的立即最小化路 测过程。 该过程包括如下步骤 701a至 705a。
步骤 701a:网管 (EM)触发最小化路测,发送 MDT消息给位置寄存器 (HSS) 网元。 根据相关技术, MDT 配置消息可以是跟踪会话激活 (Trace Session Activation ) 消息。
配置中包含 MBMS业务测量要求, 例如需要测量的 MBSFN区域列表, 对每个需要测量的 MBSFN, 或者还包括需要测量的组播信道(MCH )列表; 配置中还可以包括测量量参数,例如对每个需要测量的 MBSFN,指示需 要测量 MBSFN RSRP和 /或 MBSFN RSRQ, 对每个需要测量的组播信道, 指 示是否测量 MCH BLER, 也可以默认认为只要配置了需要测量的组播信道 MCH就需要测量 MCH BLER;
配置中还可以包括测量周期, 测量总数等相关配置
步骤 702a: 位置寄存器 (HSS)检索到 UE处于附着状态后, 发送 MDT配 置消息给 UE所在的核心网元。
根据相关技术完成, 如果是 E-UTRAN 网络情况下, 所述核心网元为
MME;如果是 UTRAN网络情况,所述核心网元为 SGSN或者是 MSC server; 例如核心网元为 MME 时, 携带 MDT 配置的消息是位置更新响应 (update location answer ) 。
步骤 703a: 核心网元发送 MDT配置消息给基站。 根据相关技术, 如果是 E-UTRAN网络情况下, 所述基站为 eNB, 如果 是 UTRAN网络, 所述基站为 RNC;
如果是 E-UTRAN网络的情况下,所述携带 MDT配置的消息为初始上下 文建立请求( Initial context setup request ) 消息, 如果是 UTRAN PS域, 所述 携带最小化路测配置的消息为 CN invoke Trace消息;
步骤 704a: 接入设备获取终端 MBMS相关信息
该步骤可参考实例一步骤 201a;
步骤 705a: 基站接受到核心网元发送的 MDT配置消息, 检查终端是否 允许执行 MBMS测量 ;
基站根据步骤 703获得的 MDT配置信息, 以及步骤 4获得的 MBMS信 息, 检查终端是否满足 MDT 测量要求。 如果终端无法满足, 基站可以中止 本次 MDT测量。
例如配置请求要求终端测量 MBMS业务, 而终端并不支持 MBMS, 则 基站中止本次 MDT测量。
例如配置请求要求终端测量某 MBSFN下 MCH的 BLER,但是终端并不 感兴趣和 /或并未接受该 MBSFN业务, 因此无法执行 MDT测量, 在这种情 况下 , 基站可以中止本次 MDT测量。
实例四
本实施例, 仍以图 7 为例, 说明基于信令 ( Signaling based ) 下的记录
( logged )最小化路测过程。 该过程包括如下步骤 701b至 704b。
步骤 701b:网管 (EM)触发最小化路测,发送 MDT消息给位置寄存器 (HSS) 网元。 根据相关技术, MDT 配置消息可以是跟踪会话激活 (Trace Session Activation ) 消息。
本例为记录 MDT 情况, 网管配置可以釆用显式的配置方式也可以釆用 隐式的配置方式。
釆用显式配置的情况下: 配置中包含 MBMS业务测量要求, 例如需要测 量的 MBSFN区域列表, 对每个需要测量的 MBSFN, 或者还包括需要测量的 组播信道(MCH ) 列表; 配置中还可以包括测量量参数,例如对每个需要测量的 MBSFN,指示需 要测量 MBSFN RSRP和 /或 MBSFN RSRQ, 对每个需要测量的组播信道, 指 示是否测量 MCH BLER, 也可以默认认为只要配置了需要测量的组播信道 MCH就需要测量 MCH BLER;
配置中还可以包括测量周期, 测量总数等相关配置;
釆用隐式配置的情况下: 网管仅仅指示需要进行 MBMS的 MDT测量, 接入设备和网络侧按照预先约定的测量量对终端所能接受的 MBSFN区域中 的 RSRP和 /或 RSRQ进行测量,对每个 MBSFN内终端正接受 MBMS业务的 误码率(MCH BLER )进行测量。
优化的情况下, 如果终端可以接受到的 MBSFN区域过多, 可以预先约 定仅测量有限多个, 例如四个 MBSFN, 其他的 MBSFN就不再测量。
步骤 702b: 位置寄存器 (HSS)检索到 UE处于附着状态后, 发送 MDT配 置消息给 UE所在的核心网元。
根据相关技术完成, 如果是 E-UTRAN 网络情况下, 所述核心网元为 MME;如果是 UTRAN网络情况,所述核心网元为 SGSN或者是 MSC server; 例如核心网元为 MME 时, 携带 MDT 配置的消息是位置更新响应 (update location answer ) 。
步骤 703b: 核心网元发送 MDT配置消息给基站。
根据相关技术, 如果是 E-UTRAN网络情况下, 所述基站为 eNB, 如果 是 UTRAN网络, 所述基站为 RNC;
如果是 E-UTRAN网络的情况下,所述携带 MDT配置的消息为初始上下 文建立请求( Initial context setup request ) 消息, 如果是 UTRAN PS域, 所述 携带最小化路测配置的消息为 CN invoke Trace消息;
步骤 704b: 接入设备获取终端 MBMS相关信息
该步骤可参考实例一步骤 201a;
步骤 705b: 基站接受到核心网元发送的 MDT配置消息, 检查终端是否 允许执行 MBMS测量 ;
基站根据步骤 703b获得的 MDT配置信息,以及步骤 704b获得的 MBMS 信息, 检查终端是否满足 MDT 测量要求。 如果终端无法满足, 基站可以中 止本次 MDT 测量。 例如在显式配置的情况下, 基站逐一检查终端是否满足 显式配置。 例如在隐式配置下, 基站需要检查所测终端是否满足预先约定的 配置要求。
例如配置请求要求终端测量 MBMS业务, 而终端并不支持 MBMS, 则 基站中止本次 MDT测量。
例如配置请求要求终端测量某 MBSFN下 MCH的 BLER,但是终端并不 感兴趣和 /或并未接受该 MBSFN业务, 因此无法执行 MDT测量, 在这种情 况下 , 基站可以中止本次 MDT测量。
该步骤使用相关技术, 将测量报告上报给 TCE设备。 测量报告中包含 MBMS测量值及其对应的 MBSFN编号以及服务区编号等信息。
实施例 2
本实施例提供一种接入设备, 可实现上述实施例 1的方法。 该设备至少 包括如下单元:
第一单元, 获取终端媒体广播多播业务(MBMS )信息, 并针对所需多 播 /组播单频网络(MBSFN ) 区域或者根据所需多播信道(MCH )信道, 选 择合适的终端; 其中, 述第一单元可以通过如下任一方式获取终端 MBMS信息: MBMS counting流程, 即 MBMS统计流程;
MBMS interest indication流程, 即 MBMS 感兴趣流程;
新建流程。
较佳地, 第一单元, 可以在基站获得最小化路测激活消息之前, 或者在 基站获得最小化路测激活消息之后获取终端 MBMS信息。
上述终端 MBMS信息为终端向接入设备上报的其正在接收和 /或感兴趣 接收的 MBMS业务的标识信息。
本实施例中, MBMS 业务的标识信息包括如下标识的任一个或任意组 合:
频点标识、 MBSFN 区域标识、 MBMS业务区域标识、 业务标识。 第二单元, 配置所述终端执行相应的 MBMS 最小化路测 (MDT ) 。 当第一单元根据 MBMS信息, 并针对所需 MBSFN区域选择合适的终端 时, 第二单元配置所述终端执行相应的 MBMS MDT指: 配置所述终端测量 组播单频网参考信号接收功率(MBSFN RSRP )和 /或组播单频网参考信号 接收质量( MBSFN RSRQ ) 。 其中, 所需 MBSFN区域指运营商需要获得的 MBSFN区域。
当第一单元根据 MBMS信息,并针对所需 MCH信道选择合适的终端时, 第二单元配置所选终端执行相应的 MBMS MDT指: 配置所选终端测量组播 单频网误码率( MBSFN BLER )。 其中, 所需 MCH信道指: 在某个 MBSFN 区域内, 当包括多个物理组播信道(PMCH )信道时候, 运营商需要获得的 一个或多个 PMCH信道。
另外, 该设备还包括: 配置单元, 用于存储网管为本接入设备针对不同 的 MBSFN区域配置的不同的 MBMS测量量。
该设备还包括: 上报单元, 上报测量报告, 所述测量报告包含测量值对 应的 MBSFN编号和 /或 MBMS业务区域编号 ( SA ) 。
本实施例中 , 第二单元配置所选终端执行相应的 MBMS MDT指: 配置 所选终端执行立即最小化路测, 或者记录最小化路测。
本发明实施例还提供一种计算机程序, 包括程序指令, 当该程序指令被 接入设备执行时, 使得该主节点可执行上述实施例所述的方法。
本发明实施例还提供一种载有所述计算机程序的载体。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 所述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地, 上述实施例中的各模块 /单元可以釆用 硬件的形式实现, 也可以釆用软件功能模块的形式实现。 本申请不限制于任 何特定形式的硬件和软件的结合。 以上所述, 仅为本发明的较佳实例而已, 并非用于限定本发明的保护范 围。 凡在本发明的精神和原则之内, 所做的任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。
工业实用性
本发明实施例可以可实现支持 MBMS业务的 MDT。

Claims

权 利 要 求 书
1、 一种多媒体广播多播业务(MBMS ) 最小化路测 (MDT ) 方法, 其 包括:
接入设备获取终端 MBMS 信息, 并针对所需多播 /组播单频网络 ( MBSFN )区域或者根据所需多播信道(MCH )信道, 选择终端, 配置所选 择的终端执行 MBMS MDT。
2、 如权利要求 1所述的方法, 其中, 所述接入设备通过如下任一方式获 取终端 MBMS信息:
MBMS统计流程;
MBMS 感兴趣流程;
新建流程。
3、 如权利要求 2所述的方法, 其中, 所述接入设备在基站获得最小化路 测激活消息之前, 或者在基站获得最小化路测激活消息之后获取终端 MBMS 信息。
4、 如权利要求 1至 3任一项所述的方法, 其中,
所述终端 MBMS信息为终端向接入设备上报的所述终端正在接收和 /或 感兴趣接收的 MBMS业务的标识信息。
5、 如权利要求 4所述的方法, 其中, 所述 MBMS业务的标识信息包括 如下任意一个或任意组合:
频点标识、 MBSFN 区域标识、 MBMS业务区域标识、 业务标识。
6、 如权利要求 4所述的方法, 其中,
所需 MBSFN区域指运营商需要获得的 MBSFN区域。
7、 如权利要求 6所述的方法, 其中,
所述接入设备根据 MBMS信息, 并针对所需 MBSFN区域选择合适的终 端时, 配置所选择的终端执行 MBMS MDT包括:
配置所选择的终端测量组播单频网参考信号接收功率( MBSFN RSRP ) 和 /或组播单频网参考信号接收质量( MBSFN RSRQ ) 。
8、 如权利要求 4所述的方法, 其中, 所需 MCH信道指:在 MBSFN区域内,当包括多个物理组播信道( PMCH ) 信道时候, 运营商需要获得的一个或多个 PMCH信道。
9、 如权利要求 8所述的方法, 其中,
所述接入设备根据 MBMS信息, 并针对所需 MCH信道选择终端时, 配 置所选择的终端执行 MBMS MDT包括:
配置所选择的终端测量组播单频网误码率( MBSFN BLER ) 。
10、 如权利要求 4所述的方法, 该方法还包括:
网管为所述接入设备针对不同的 MBSFN 区域配置不同的 MBMS 测量 量。
11、 如权利要求 10所述的方法, 该方法还包括:
所述接入设备上报测量报告, 其中包含测量值对应的 MBSFN编号和 /或 MBMS业务区域编号 (SA ) 。
12、 如权利要求 4所述的方法, 该方法还包括:
所述接入设备根据所述 MBSM信息为基于管理的 MDT选择终端。
13、 如权利要求 4所述的方法, 该方法还包括:
所述接入设备根据所述 MBSM信息检查基于信令的 MDT。
14、 如权利要求 4所述的方法, 其中, 所述接入设备配置所选择的终端 执行 MBMS MDT包括:
所述接入设备配置所选择的终端执行立即最小化路测, 或者记录最小化 路测。
15、 一种接入设备, 其包括:
第一单元, 其设置为: 获取终端媒体广播多播业务(MBMS )信息, 并 针对所需多播 /组播单频网络(MBSFN ) 区域或者根据所需多播信道(MCH ) 信道, 选择终端; 以及
第二单元, 其设置为: 配置所选择的终端执行 MBMS 最小化路测
( MDT ) 。
16、 如权利要求 15所述的设备, 其中, 所述第一单元是设置为通过如下 任一方式获取终端 MBMS信息: MBMS统计流程;
MBMS 感兴趣流程;
新建流程。
17、 如权利要求 16所述的设备, 其中,
所述第一单元是设置为: 在基站获得最小化路测激活消息之前, 或者在 基站获得最小化路测激活消息之后获取终端 MBMS信息。
18、 如权利要求 15至 17任一项所述的设备, 其中,
所述终端 MBMS信息为终端向接入设备上报的所述终端正在接收和 /或 感兴趣接收的 MBMS业务的标识信息。
19、 如权利要求 18所述的设备, 其中, 所述 MBMS业务的标识信息包 括如下任一种或任意组合:
频点标识、 MBSFN 区域标识、 MBMS业务区域标识、 业务标识。
20、 如权利要求 18所述的设备, 其中,
所需 MBSFN区域指运营商需要获得的 MBSFN区域。
21、 如权利要求 20所述的设备, 其中,
当所述第一单元是设置为根据 MBMS信息, 并针对所需 MBSFN区域选 择合适的终端时, 所述第二单元是设置为以如下方式配置所选择的终端执行 MBMS MDT:
配置所选择的终端测量组播单频网参考信号接收功率( MBSFN RSRP ) 和 /或组播单频网参考信号接收质量( MBSFN RSRQ ) 。
22、 如权利要求 18所述的设备, 其中,
所需 MCH信道指: 在某个 MBSFN区域内, 当包括多个物理组播信道 ( PMCH )信道时候, 运营商需要获得的一个或多个 PMCH信道。
23、 如权利要求 22所述的设备, 其中,
当所述第一单元是设置为根据 MBMS信息, 并针对所需 MCH信道选择 合适的终端时, 所述第二单元是设置为以如下方式配置所选择的终端执行 MBMS MDT:
配置所选择的终端测量组播单频网误码率( MBSFN BLER ) 。
24、 如权利要求 18所述的设备, 该设备还包括:
配置单元, 其设置为: 存储网管为本接入设备针对不同的 MBSFN区域 配置的不同的 MBMS测量量。
25、 如权利要求 24所述的设备, 该设备还包括:
上报单元, 其设置为: 上报测量报告, 所述测量报告包含测量值对应的 MBSFN编号和 /或 MBMS业务区域编号 ( SA ) 。
26、 如权利要求 18所述的设备, 其中, 所述第二单元是设置为以如下 方式配置所选择的终端执行 MBMS MDT:
配置所选择的终端执行立即最小化路测, 或者记录最小化路测。
27、 一种计算机程序, 包括程序指令, 当该程序指令被接入设备执行时, 使得该主节点可执行权利要求 1-14任一项所述的方法。
28、 一种载有权利要求 27所述计算机程序的载体。
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