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WO2016161775A1 - Procédé et appareil permettant une réduction au minimum de test d'entraînement de taux de perte - Google Patents

Procédé et appareil permettant une réduction au minimum de test d'entraînement de taux de perte Download PDF

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Publication number
WO2016161775A1
WO2016161775A1 PCT/CN2015/090044 CN2015090044W WO2016161775A1 WO 2016161775 A1 WO2016161775 A1 WO 2016161775A1 CN 2015090044 W CN2015090044 W CN 2015090044W WO 2016161775 A1 WO2016161775 A1 WO 2016161775A1
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Prior art keywords
pdcp
per
air interface
packets
terminal
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PCT/CN2015/090044
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English (en)
Chinese (zh)
Inventor
李大鹏
杨立
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the present invention relates to the field of communications, and in particular to a method and apparatus for minimizing a drive test MDT with a loss rate.
  • the Third Generation Partnership Projects includes universal terrestrial wireless connections including: base station Node B and radio network controller RNC.
  • Version 10 (Release-10) of the Evolved Universal Terrestrial Radio Access Network (E-UTRAN) system including the evolved base station eNB (Universal Terrestrial Radio Access Network, UTRAN for short)
  • MDT Minimization of Drive Test
  • the core network (Core Network, referred to as CN) corresponding to the UTRAN includes a Home Subscriber Server (HSS), also called a location register, a Mobile Switching Centre Server (MSC Server), and a general service.
  • HSS Home Subscriber Server
  • MSC Server Mobile Switching Centre Server
  • SGSN Serving General Packet Radio Service Support Node
  • the core network CN corresponding to the E-UTRAN includes: a host user server location register HSS, a mobility management entity (Mobile Management Entity, MME for short), and the like. Minimize the drive test function.
  • the user equipment (User Equipment, UE for short) automatically collects measurement information and reports it to the Radio Access Network (Radio Access Network, RAN for short) through Control Plane signaling, where the UTRAN system is used.
  • UE User Equipment
  • RNC refers to the eNB of the E-UTRAN system
  • OAM Operation and Maintenance
  • TCE Trace Collection Entity
  • the MDT function is divided into management-based MDT (Management based MDT) and signaling-based MDT (Signaling based MDT); wherein the activation process of the management-based MDT is usually (using the E-UTRAN system as an example, the following are the same) OAM
  • the eNB is configured to send an MPLS (Trace Session Activation, TSA for short) to the eNB.
  • the eNB selects an appropriate UE in the area specified by the message, and sends the MDT configuration information to the selected UE.
  • the activation process of the signaling-based MDT is to send, by the OAM, a tracking activation message including an MDT configuration to the home subscriber server HSS to activate the MDT measurement of the designated UE, and the location register HSS sends the MDT configuration information of the UE to the MME, and the MME will
  • the MDT configuration information of the UE is sent to the eNB, and the eNB finally sends the MDT configuration information to the UE.
  • Signaling based The MDT usually uses an International Mobile Subscriber Identity (IMSI) or an International Mobile Station Equipment Identity (IMEI) to designate a certain UE, or add area information to limit the UE. select.
  • IMSI International Mobile Subscriber Identity
  • IMEI International Mobile Station Equipment Identity
  • the management-based MDT and signaling-based tracking activation message includes Trace Reference information from OAM, including Public Land Mobile Network (PLMN) information, by mobile country code (Mobile)
  • PLMN Public Land Mobile Network
  • MCC mobile country code
  • MNC Mobile Network code
  • the MDT function can be divided into two working modes according to its working in idle state and working in connected state, specifically "Logged MDT” and "immediate MDT”; Minimizing the drive test means that the UE is in the radio resource control idle state (refer to the RRC_IDLE state for the E-UTRAN system; and includes the cell_paging channel state CELL_PCH and the UTRAN registration zone_paging channel state URA_PCH for the UTRAN system).
  • the radio access network RAN sums up or directly forwards the data to the TCE.
  • the UE collects relevant measurement information in the RRC connection state (for the E-UTRAN system refers to the RRC_CONNECTED state; for the UTRAN system refers to the cell_dedicated channel state CELL_DCH) and actively uploads to the report when the report meets the reporting condition.
  • the radio access network RAN after receiving the report, the radio access network RAN aggregates or directly transmits the report to the TCE.
  • the goal of MDT measurements is to provide data analysis network performance. MDT measurements are used to identify key aspects of network performance impact and to see if it is necessary to adjust network configuration parameters or network expansion. This function can be used to detect whether the quality of experience (QoE) of the UE meets the requirements of network planning when the network is deployed in the early stage or in large-scale use.
  • QoE quality of experience
  • the manual road test in the related art also has the measurement work, but the cost of the manual road test is high, and some specific areas cannot be fully measured by the manual road test. Therefore, the MDT measurement uses a certain number of UEs to report the measured data when using the service, and provides the operator with statistically significant measurement data.
  • the QoS of the related art is used to indicate the actual transmission of the service.
  • QoS Class Identifier QCI
  • Each QCI has a specified attribute value. For example, Packet Delay Budget (PDB), Packet Error Loss Rate (PELR), Priority Priority, and so on.
  • PDB Packet Delay Budget
  • PELR Packet Error Loss Rate
  • Priority Priority and so on.
  • each terminal may have several radio access bearers, and each radio access bearer corresponds to one radio bearer, and each radio access bearer has a corresponding QCI, that is, each radio bearer.
  • There is a corresponding QCI For example, in the E-UTRAN system, the radio access bearer E-RAB and the radio bearer RB have and have only the same QCI.
  • the LTE network supports different services, such as MultiMedia Telephony (MMTEL), which supports various forms such as telephone, video, and short message. Operators deploying services At the same time, it is necessary to examine the actual operation of the service. It is important to use MDT to measure the deployment and usage of the MMTEL service. However, the terminal does not have any MDT measurement for MMTELD in the related art.
  • MMTEL MultiMedia Telephony
  • a main object of the embodiments of the present invention is to provide a method and apparatus for minimizing a drive test MDT with a loss rate, so as to at least solve the problem that the terminal cannot provide a loss rate to minimize the drive test MDT measurement in the related art.
  • a method for minimizing a drive test MDT of a loss rate includes: receiving, by a terminal, a first message that is sent by a network element and carrying a minimized drive test MDT configuration, where The MDT is configured as a parameter for performing MDT measurement on the loss rate; the terminal measures the loss rate according to the MDT configuration; and the terminal reports the result of the loss rate measurement.
  • the MDT configuration includes: a loss rate measurement object, a loss rate measurement period, and a loss rate measurement trigger condition.
  • the terminal when the loss rate measurement trigger condition is a service type that needs to perform a loss rate measurement, the terminal performs a loss rate measurement on the loss rate measurement object when the service indicated by the service type starts, and The loss rate measurement is performed on the loss rate measurement object when the service indicated by the service type terminates.
  • the terminal measures, by using the following manner, the per-QCI discard rate of the uplink:
  • the number of discarded packets per QCI includes: the number of packet data convergence protocol PDCP packets that are not delivered in the air interface, or includes: the terminal is discarded in the radio link control layer RLC, the PDCP, and the medium access control MAC layer.
  • the number of the QCI packets; the total number of the QCI packets is the total number of PDCP protocol data unit SDU packets of the QCI delivered by the PDCP upper layer protocol to the PDCP layer on the terminal side.
  • the measuring, by the terminal, the per-bearing discard rate in the uplink manner includes:
  • the number of discarded packets per bearer includes: the number of PDCP packets that are not delivered in the air interface, or the number of packets that are discarded by the terminal at the RLC, the PDCP, and the MAC layer;
  • the total number of bearer packets is the total number of PDCP SDUs on the bearer delivered by the PDCP upper layer protocol to the PDCP layer on the terminal side.
  • the terminal measures, by using the following manner, the per-terminal discard rate of the uplink, where:
  • the number of discarded packets per terminal includes: the number of PDCP packets that are not delivered on the air interface, or the number of packets discarded by the terminal in the RLC, the PDCP, and the MAC layer; the total number of packets per terminal The total number of PDCP SDU packets transmitted to the terminal of the PDCP layer by the PDCP upper layer protocol in the terminal.
  • the terminal measures, by using the following manner, the per-QIC air interface discard rate in the following manner:
  • the number of the uplink per-QCI air interface loss includes: the number of PDCP packets that have not received a successful response when the fragmented packet has been delivered in the air interface, and the PDCP packet that has not received the successful response is in the measured period.
  • the number of successful transmissions per QCI includes: the number of PDCP packets of the tested QCI that are delivered on the air interface and received a successful response.
  • the terminal measures, by using the following manner, the discard rate of each bearer air interface in the uplink manner, where:
  • the number of the lost packets per uplink of the bearer includes: the number of PDCP packets that have not received the successful response when the fragmented packet is delivered in the air interface, and the PDCP packet that has not received the successful response is in the measured period.
  • the number of successful transmissions per bearer includes: the number of PDCP packets of the tested bearer that is delivered on the air interface and receives a successful response.
  • the terminal measures, by using the following manner, the per-terminal air interface discard rate of the uplink:
  • the number of the uplink-to-terminal air interface loss includes: the number of PDCP packets that have not received the successful response when the fragmented packet is delivered on the air interface, and the PDCP packet that has not received the successful response is in the measured period.
  • the number of successful transmissions per terminal includes: the number of PDCP packets of the terminal under test transmitted by the air interface and receiving a successful response.
  • the terminal measures, by using the following manner, the per-QCI air interface discard rate in the downlink manner, where:
  • the downlink per-QCI air interface loss number includes: a total number of lost downlink PDCP packet sequence numbers; the total number of per-QCI downlink air interface transmission packets includes: a total number of total PDCP sequence numbers sent by the downlink and a PDCP sequence number that is not successfully transmitted. total.
  • the terminal measures, by using the following manner, the drop rate per bearer air interface in the following manner:
  • the total number of lost downlink IP addresses of the bearer includes: the total number of lost downlink PDCP packets; the total number of downlink IP packets transmitted by the bearer includes: the total number of total PDCP sequence numbers sent by the downlink and the PDCP sequence number that has not been successfully transmitted. total.
  • the terminal measures, by using the following manner, the air interface discard rate of each port in the downlink manner, where:
  • the number of downlink air interface loss per terminal includes: the total number of lost downlink PDCP packet sequences; the total number of downlink air interface transmission messages per terminal includes: the total number of total PDCP sequence numbers sent by the downlink and the PDCP sequence number that has not been successfully transmitted. total.
  • the first message is a radio resource connection management RRC message.
  • a device for minimizing the drive test MDT of the loss rate includes: a receiving module, configured to receive the minimized drive test MDT configuration sent by the network element.
  • the second message wherein the MDT is configured as a parameter for performing MDT measurement on a loss rate; the measurement module is configured to measure a loss rate according to the MDT configuration; and the reporting module is configured to report a result of reporting a loss rate.
  • the MDT configuration includes: a loss rate measurement object, a loss rate measurement period, and a loss rate measurement trigger condition.
  • the measurement module is further configured to: when the service indicated by the service type starts, lose the loss rate measurement object. The rate is measured, and the loss rate measurement is performed on the loss rate measurement object when the service indicated by the service type is terminated.
  • the measurement module measures, by using the following manner, the per-QCI discard rate of the uplink:
  • the number of discarded packets per QCI includes: the number of packet data convergence protocol PDCP packets that are not delivered in the air interface, or includes: the terminal is discarded in the radio link control layer RLC, the PDCP, and the medium access control MAC layer.
  • the number of the QCI packets; the total number of the QCI packets is the total number of PDCP protocol data unit SDU packets of the QCI delivered by the PDCP upper layer protocol to the PDCP layer on the terminal side.
  • the measuring module measures, by using the following manner, the uplink per-bearer discard rate:
  • the number of discarded packets per bearer includes: the number of PDCP packets that are not delivered in the air interface, or the number of packets that are discarded by the terminal at the RLC, the PDCP, and the MAC layer;
  • the total number of bearer packets is the total number of PDCP SDUs on the bearer delivered by the PDCP upper layer protocol to the PDCP layer on the terminal side.
  • the measuring module measures, by using the following manner, the per-terminal discard rate of the uplink:
  • the number of discarded packets per terminal includes: the number of PDCP packets that are not delivered on the air interface, or the number of packets discarded by the terminal in the RLC, the PDCP, and the MAC layer; the total number of packets per terminal The total number of PDCP SDU packets transmitted to the terminal of the PDCP layer by the PDCP upper layer protocol in the terminal.
  • the measuring module measures, by using the following manner, the per-QIC air interface discard rate in the uplink manner, where:
  • the number of the uplink per-QCI air interface loss includes: the number of PDCP packets that have not received a successful response when the fragmented packet has been delivered in the air interface, and the PDCP packet that has not received the successful response is in the measured period.
  • the number of successful transmissions per QCI includes: the number of PDCP packets of the tested QCI that are delivered on the air interface and received a successful response.
  • the measuring module measures, by using the following manner, the discard rate of each bearer air interface in the uplink manner, where:
  • the number of the lost packets per uplink of the bearer includes: the number of PDCP packets that have not received the successful response when the fragmented packet is delivered in the air interface, and the PDCP packet that has not received the successful response is in the measured period.
  • the number of successful transmissions per bearer includes: the number of PDCP packets of the tested bearer that is delivered on the air interface and receives a successful response.
  • the measuring module measures, by using the following manner, the per-terminal air interface discard rate of the uplink:
  • the number of the uplink-to-terminal air interface loss includes: the number of PDCP packets that have not received the successful response when the fragmented packet is delivered on the air interface, and the PDCP packet that has not received the successful response is in the measured period.
  • the number of successful transmissions per terminal includes: the number of PDCP packets of the terminal under test transmitted by the air interface and receiving a successful response.
  • the measuring module measures the downlink per-QCI air interface discard rate by:
  • the downlink per-QCI air interface loss number includes: a total number of lost downlink PDCP packet sequence numbers; the total number of per-QCI downlink air interface transmission packets includes: a total number of total PDCP sequence numbers sent by the downlink and a PDCP sequence number that is not successfully transmitted. total.
  • the measuring module measures, by using the following manner, the drop rate per bearer air interface in the following manner:
  • the total number of lost downlink IP addresses of the bearer includes: the total number of lost downlink PDCP packets; the total number of downlink IP packets transmitted by the bearer includes: the total number of total PDCP sequence numbers sent by the downlink and the PDCP sequence number that has not been successfully transmitted. total.
  • the measuring module measures, by using the following manner, the air interface discarding rate of each port in the downlink manner, where:
  • the number of downlink air interface loss per terminal includes: the total number of lost downlink PDCP packet sequences; the total number of downlink air interface transmission messages per terminal includes: the total number of total PDCP sequence numbers sent by the downlink and the PDCP sequence number that has not been successfully transmitted. total.
  • the second message is a radio resource connection management RRC message.
  • the terminal receives the first message that is sent by the network element and carries the minimized drive test MDT configuration, where the MDT is configured as a parameter for performing MDT measurement on the loss rate, and the loss rate is measured according to the MDT configuration.
  • the method of reporting the result of the loss rate is reported, and the problem that the terminal cannot provide the loss rate to minimize the road test MDT measurement in the related art is solved, thereby filling the gap of the related technology.
  • FIG. 1 is a flow chart of a method of minimizing a drive test MDT for loss rate, in accordance with an embodiment of the present invention
  • FIG. 2 is a block diagram showing the structure of a device for minimizing a drive test MDT of a loss rate according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a method of measuring signaling-based MDT in accordance with an alternative embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a management-based MDT measurement method in accordance with an alternate embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for minimizing the drive test MDT of the loss rate according to the embodiment of the present invention. As shown in FIG. The steps include:
  • Step S102 The terminal receives the first message that is sent by the network element and carries the minimized drive test MDT configuration, where the MDT is configured as a parameter for performing MDT measurement on the loss rate.
  • Step S104 The terminal measures the loss rate according to the MDT configuration.
  • Step S106 The terminal reports the result of the measurement of the loss rate.
  • the terminal receives the first message that is sent by the network element and carries the minimized drive test MDT configuration, where the MDT is configured as a parameter for performing MDT measurement on the loss rate, according to the MDT configuration pair.
  • the loss rate is measured, and the result of the loss rate measurement is reported, which solves the problem that the terminal cannot provide the loss rate to minimize the road test MDT measurement in the related art, thereby filling the gap of the related technology.
  • the loss rate measurement object, the loss rate measurement period, and the loss rate measurement trigger condition may be included.
  • the parameters of the MDT configuration may also include other. The foregoing is only the preferred MDT configuration parameters in this embodiment, and may be adjusted accordingly according to requirements in other application scenarios.
  • the terminal when the loss rate measurement trigger condition is a service type that needs to perform the loss rate measurement, the terminal performs a loss rate on the loss rate measurement object when the service indicated by the service type starts. The measurement is performed, and the loss rate measurement is performed on the loss rate measurement object when the service indicated by the service type is terminated.
  • the service type may be a voice type of MMTEL or a video call type of MMTEL.
  • loss rate measurement objects there are various types of loss rate measurement objects involved in this embodiment, and the optional implementation manners in this embodiment may include the following:
  • the terminal may measure the uplink per QCI discard rate by:
  • the number of the packets discarded by the QCI includes: the number of Packet Data Convergence Protocol (PDCP) packets that are not transmitted in the air interface, or includes: the terminal is in the radio link control layer (Radio Link Control abbreviation)
  • the reason for the discarding does not include the packet loss caused by the handover.
  • the total number of per-QCI packets is the total number of PDCP SDU packets transmitted by the UE-side PDCP upper layer protocol to the QCP of the PDCP layer.
  • the uplink per-QCI discard rate in the first mode refers to the rounding value of the ratio of the measured QCI discards to the total number of tested QCI packets in the measurement period; the discarded packets refer to the PDCP layer. Packets are discarded.
  • the first method shows the ratio of packets discarded by the same QCI service on a different radio bearer due to congestion and traffic management during the measurement time period.
  • the terminal measures the uplink per-bearer discard rate by the following methods:
  • the number of discarded packets per bearer includes the number of PDCP packets that are not transmitted on the air interface, or the number of packets discarded by the terminal at the RLC, PDCP, and MAC layer. The reason for discarding does not include the packet caused by the handover.
  • the total number of packets per bearer is the total number of PDCP SDUs on the bearer delivered to the PDCP layer by the PDCP upper layer protocol on the UE side.
  • the uplink per-bearing discard rate in the second mode is: the rounding value of the measured bearer drop number and the total number of tested bearer packets in the measurement period; the discarded packet refers to the PDCP layer packet discarding. That is, the second method reflects the ratio of packets discarded by the same QCI service on the same radio bearer due to congestion and traffic management during the measurement time period.
  • the terminal measures the uplink discard rate per terminal by the following methods:
  • the number of discarded packets per terminal includes the number of PDCP packets that are not transmitted on the air interface, or the number of packets discarded by the terminal at the RLC, PDCP, and MAC layers.
  • the reason for discarding does not include packet loss due to handover. .
  • the total number of packets per terminal is the total number of PDCP SDU packets transmitted to the PDCP layer by the PDCP upper layer protocol of the UE side.
  • the uplink per-terminal discard rate in the third mode refers to the rounding value of the ratio of the number of discarded packets of the measured terminal and the total number of packets of the tested terminal in the measurement period; the discarded packet refers to the packet of the PDCP layer. Discarding; This mode 3 shows the ratio of packets discarded by a terminal service due to congestion and traffic management during the measurement time period.
  • the terminal measures the uplink per-QCI air interface discard rate by the following methods:
  • the number of lost packets per QCI air interface includes at least part of the fragmented packets that have been transmitted on the air interface, but the number of PDCP packets that have received the successful response is not received, and the PDCP packet is not retransmitted during the measured period.
  • the text will be transmitted in other cells for reasons such as handover, and will not be counted in the lost number.
  • the number of uplink per QCI successful transmissions includes the number of PDCP packets of the measured QCI that are transmitted on the air interface and received a successful response.
  • the uplink per-QCI loss rate in the fourth method refers to the rounding value of the ratio of the measured QCI loss and the total number of tested QCI air interface transmission packets in the measurement period; the discarded packet refers to the PDCP layer report.
  • the method discards the ratio of the packets lost by the same QCI service on the different radio bearers on a certain radio terminal due to the failure of the air interface transmission during the measurement time period.
  • Air interface discard rate measurements include:
  • the number of lost packets per uplink of the bearer includes at least part of the fragmented packet that has been transmitted on the air interface, but the number of PDCP packets that have received the successful response is not received, and the PDCP packet is not retransmitted during the measured period.
  • the text will be transmitted in other cells for reasons such as handover, and will not be counted in the lost number.
  • the number of uplink successful transmissions per bearer includes the number of PDCP packets of the measured bearer transmitted by the air interface and receiving a successful response.
  • the uplink per-bearing loss rate in the fifth mode refers to the rounding value of the measured bearer loss number and the total number of the tested bearer air interface transmission packets in the measurement period; the discarded packet refers to the PDCP layer packet. Discarding; This method 5 shows the ratio of packets lost by the same QCI service on the same radio bearer on the same radio bearer due to air interface transmission failure during the measurement time period.
  • the terminal measures the drop rate of each terminal air interface by the following methods:
  • the number of lost packets per uplink per terminal includes at least part of the fragmented packet that has been transmitted on the air interface, but the number of PDCP packets that have not received the response is not received, and the PDCP packet is not retransmitted during the measured period.
  • the text will be transmitted in other cells for reasons such as handover, and will not be counted in the lost number.
  • the number of successful transmissions per terminal of the uplink includes the number of PDCP packets of the measured terminal that is transmitted on the air interface and receives a successful response.
  • the uplink per-terminal loss rate in the mode 6 refers to the rounding value of the ratio of the number of packets of the tested terminal and the total number of packets transmitted by the tested terminal in the measurement period; the packet refers to the PDCP layer.
  • This mode 6 shows the ratio of all the packets that are lost by all the terminals of a certain QCI service due to the failure of the air interface transmission during the measurement time period.
  • the terminal measures the downlink per-QCI air interface discard rate by the following methods:
  • the number of lost packets per QCI air interface includes the total number of lost downlink PDCP packets. If the PDCP packets are to be transmitted in other cells due to handover, etc., they are not counted in the lost number.
  • the total number of packets transmitted per QCI downlink air interface includes: the total number of total PDCP sequence numbers sent by the downlink and the total number of PDCP sequence numbers that have not been successfully transmitted.
  • the downlink per-QCI air interface loss rate in the mode 7 refers to the rounding value of the measured QCI loss number and the total number of tested QCI air interface transmission packets in the measurement period; the packet refers to the PDCP layer message. Discarding; the method 7 shows the ratio of packets lost by the same QCI service on the different radio bearers in the downlink direction due to air interface transmission failure during the measurement time period.
  • the terminal measures the discard rate of each bearer air interface in the following manner, including:
  • the number of lost downlink air interfaces per bearer includes: the total number of lost downlink PDCP packets. If the PDCP packets are to be transmitted in other cells due to handover, etc., they are not counted in the lost number.
  • the total number of transmission packets per downlink air interface includes the total number of total PDCP sequence numbers sent by the downlink and the total number of PDCP sequence numbers that have not been successfully transmitted.
  • the downlink bearer air interface loss rate in the mode 8 refers to the rounding value of the measured bearer loss number and the measured bearer air interface transmission packet ratio in the measurement period; the packet refers to the PDCP layer report.
  • the mode 8 indicates the ratio of packets lost by the same QCI service on the same radio bearer in the downlink direction due to the failure of the air interface transmission during the measurement time period.
  • the terminal measures the air interface discard rate of each port in the following manner by:
  • the number of downlink air interface loss per terminal includes the lost downlink PDCP packet sequence number, if the PDCP report The text will be transmitted in other cells for reasons such as handover, and will not be counted in the lost number.
  • the total number of downlink air interface transmission messages per terminal includes the total PDCP sequence number sent by the downlink, including the PDCP sequence number that has not been successfully transmitted.
  • the downlink-to-terminal air interface loss rate in the mode 9 refers to the rounding value of the measured bearer loss number and the measured bearer air interface transmission packet ratio in the measurement period; the packet is the PDCP layer packet discarding.
  • This mode 9 shows the ratio of packets lost by all air traffic transmission failures of all QCI services on all radio bearers on a terminal in the measurement time period.
  • the first message involved in this embodiment may be a radio resource connection management RRC message.
  • a device for minimizing the drive test MDT of the loss rate is provided, and the device is used to implement the foregoing embodiment and the optional implementation manner, and details are not described herein.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • the device is located at a terminal side, and includes: a receiving module 22 configured to receive a network element to transmit The second message of the drive test MDT configuration is minimized, wherein the MDT is configured as a parameter for performing MDT measurement on the loss rate; the measurement module 24 is coupled to the receiving module 22, and configured to measure the loss rate according to the MDT configuration; the reporting module 26 And coupled to the measurement module 24, set to report the loss rate to measure the result.
  • the MDT configuration involved in this embodiment may include: a loss rate measurement object, a loss rate measurement period, and a loss rate measurement trigger condition.
  • the measurement module 24 is further configured to perform a loss rate measurement on the loss rate measurement object at the start of the service indicated by the service type, and The loss rate measurement is performed on the loss rate measurement object when the service indicated by the service type terminates.
  • the MDT measurement involved in this embodiment may include the following manners:
  • the measurement module 24 measures the uplink per QCI discard rate by:
  • the number of discarded packets per QCI includes: the number of packet data aggregation protocol PDCP packets that are not transmitted on the air interface, or the number of packets of the QCI discarded by the terminal in the radio link control layer RLC, PDCP, and medium access control MAC layer.
  • the total number of per-QCI packets is the total number of PDCP service data unit SDU packets transmitted by the terminal-side PDCP upper-layer protocol to the QCP of the PDCP layer.
  • the measurement module 24 measures the uplink per-bearer discard rate by:
  • the number of discarded packets per bearer includes: the number of PDCP packets that are not transmitted on the air interface, or the number of packets that are discarded by the terminal in the RLC, PDCP, and MAC layers.
  • the total number of packets per bearer is the terminal side per unit time.
  • the measurement module 24 measures the uplink per-terminal discard rate by:
  • the number of discarded packets per terminal includes: the number of PDCP packets that are not transmitted on the air interface, or the number of packets discarded by the terminal at the RLC, PDCP, and MAC layers.
  • the total number of packets per terminal is the upper layer of the PDCP on the terminal side. Total number of PDCP SDU packets delivered to the terminal at the PDCP layer.
  • the measurement module 24 measures the uplink per QCI air interface discard rate by:
  • the number of uplinks per QCI air interface includes: the number of PDCP packets that have not received a successful response when the fragmented packet has been delivered on the air interface, and the PDCP packet that has not received the successful response is no longer in the measured period.
  • the number of successful transmissions per QCI includes: the number of PDCP packets of the tested QCI that are transmitted on the air interface and received a successful response.
  • the measurement module 24 measures the drop rate of each bearer air interface in the following manner, including:
  • the number of lost packets per uplink of the bearer includes: the number of PDCP packets that have not received a successful response when the fragmented packet is delivered on the air interface, and the PDCP packet that has not received the successful response is no longer in the measured period.
  • the measurement module 24 measures the uplink per-port air interface discard rate by:
  • the number of the air interface loss per terminal includes: the number of PDCP packets that have not received the successful response when the fragmented packet is transmitted on the air interface, and the PDCP packet that has not received the successful response is no longer in the measured period.
  • Retransmission; the number of successful transmissions per terminal includes: the number of PDCP packets of the terminal under test transmitted by the air interface and receiving a successful response.
  • the measurement module 24 measures the downlink per QCI air interface discard rate by:
  • the number of downlinks per QCI air interface loss includes: the total number of lost downlink PDCP packet sequences; the total number of downlink IP packets transmitted per QCI includes: the total number of total PDCP sequence numbers sent by the downlink and the total number of PDCP sequence numbers that have not been successfully transmitted.
  • the measurement module 24 measures the drop rate of each bearer air interface in the following manner, including:
  • the total number of lost downlink IP addresses of the bearer includes: the total number of lost downlink PDCP packets; the total number of downlink packets transmitted by each bearer includes: the total number of total PDCP sequence numbers sent by the downlink and the total number of PDCP sequence numbers that have not been successfully transmitted.
  • the measurement module 24 measures the air interface discard rate of each port in the following manner by:
  • the number of downlink air interface loss per terminal includes: the total number of downlink PDCP packet numbers lost; the total number of downlink air interface transmission messages per terminal includes: the total number of total PDCP sequence numbers sent by the downlink and the total number of PDCP sequence numbers that have not been successfully transmitted.
  • the second message related to the apparatus embodiment may be a radio resource connection management RRC message.
  • This alternative embodiment is used to illustrate how the base station implements the delay MDT measurement in the immediate minimization of the drive test based on the signaling MDT.
  • FIG. 3 is a schematic diagram of a method for measuring a signaling-based MDT according to an alternative embodiment of the present invention.
  • the MDT function is in a working mode of immediate MDT, which minimizes the drive test MDT, as shown in FIG.
  • the steps of the method include:
  • Step S302 The network management system EMS triggers minimization of the drive test, and sends a minimized drive test configuration message;
  • the message may be a Trace Session Activation (TSA) message to the location register HSS network element, where the message includes a measurement request that triggers the acquisition of a terminal MMTEL service loss rate;
  • TSA Trace Session Activation
  • Step S304 After the location register HSS retrieves the UE into the attached state, it sends a minimized configuration message to the core network element where the UE is located.
  • the core network element in the case of an E-UTRAN network, the core network element is the MME; if it is the UTRAN network situation
  • the core network element is the SGSN or the MSC server; for example, when the core network element is the MME, the message carrying the MDT configuration is an Update location answer (Update location answer) message, where the message includes a measurement request for triggering the acquisition delay;
  • Step S306 The core network element sends a minimized drive test configuration message to the access network element.
  • the access network element is an eNB, and the message carrying the minimized drive test configuration is an Initial context setup request message; if it is a UTRAN PS domain, the access network element is The RNC carries a message that minimizes the drive test configuration as a CN invoke trace message; the message includes a measurement request that triggers the acquisition of location information; or the core network element sends a special message that includes a measurement request for obtaining a loss rate;
  • Step S308 The access network element accepts the minimization of the drive test configuration message, and allocates the drive test message to the terminal through the RRC message.
  • the configuration includes a measurement object of the loss rate, a measurement period of the loss rate, and a measurement trigger condition of the loss rate;
  • Step S310 The terminal performs a minimum measurement of the loss rate according to the configuration
  • the terminal After receiving the MDT configuration, the terminal identifies the measurement request including the acquisition loss rate, and starts the measurement of the uplink and downlink according to the configuration, and the measurement object includes the loss rate measurement according to the specific QCI, the specific bearer, or the entire terminal;
  • the loss rate measurement needs to be started after waiting for the MMTEL related service to start, and the corresponding loss rate measurement is also terminated when the MMTEL service is terminated.
  • the measurement is performed only for the voice service of the MMTEL, and the terminal can obtain the bearer information and the QCI information corresponding to the MMTEL type according to the non-access stratum protocol (NAS), and the terminal can establish the bearer corresponding to the MMTEL or the corresponding QCI attribution.
  • the loss rate measurement is initiated when the bearer is established;
  • the uplink loss rate measurement and the downlink loss rate measurement can be performed simultaneously;
  • Step S312 The terminal reports the MDT measurement result to the base station.
  • the terminal reports the MDT measurement result to the base station by using an RRC message
  • Step S316 The base station reports the MDT measurement result.
  • the base station reports the loss rate measurement result of the terminal to the Trace Collection Entity (TCE).
  • TCE Trace Collection Entity
  • This alternative embodiment is used to illustrate how the terminal implements loss in an immediate minimization of the road test based on the management MDT. Rate of MDT measurements.
  • FIG. 4 is a schematic diagram of a management-based MDT measurement method according to an alternative embodiment of the present invention.
  • the MDT function is in an operation mode of immediately minimizing the drive test MDT, as shown in FIG.
  • the steps include:
  • Step S402 The network management system EMS triggers the minimization of the drive test, and sends the configuration request (minimize the drive test configuration message) to the access network network element, for example, the eNB or the RNC, through the southbound interface; the message includes acquiring the MMTEL service loss. Measurement requirements for rate information;
  • Step S404 The access network element selects an appropriate terminal, and sends an MDT configuration message to the terminal.
  • the access network eNB or the RNC selects one or more suitable terminals; the access network passes the existing The message sends the MDT configuration information to the terminal, where the message includes a measurement request for acquiring the MMTEL service loss rate information;
  • the information message that is configured by the base station to the terminal is the same as that of the radio resource management measurement.
  • the radio resource control Radio Resource Control, RRC for short
  • connection reconfiguration message may be used.
  • Step S406 The terminal starts the loss rate measurement for the MMTEL service after accepting the minimization of the drive test configuration message.
  • the terminal After receiving the MDT configuration, the terminal identifies the measurement request including the acquisition loss rate, and starts the measurement of the uplink and downlink according to the configuration, and the measurement object includes the loss rate measurement according to the specific QCI, the specific bearer, or the entire terminal;
  • the loss rate measurement needs to be started after waiting for the MMTEL related service to start, and the corresponding loss rate measurement is also terminated when the MMTEL service is terminated.
  • the measurement is performed only for the voice service of the MMTEL, and the terminal can obtain the bearer information and the QCI information corresponding to the MMTEL type according to the non-access stratum protocol (NAS), and the terminal can establish the bearer corresponding to the MMTEL or the corresponding QCI attribution.
  • the loss rate measurement is initiated when the bearer is established;
  • the terminal can simultaneously enable uplink and downlink measurements, or only uplink or downlink measurements.
  • Step S408 The terminal reports the measurement result to the tracking collection entity TCE through the base station.
  • the terminal can select the report according to its own measurement situation, and can also report it in combination with other measurements. For example, after the terminal provides the location information, the terminal can report the measured loss rate result and the location information together; the base station provides the report according to the terminal. Give TCE.
  • the embodiment can support the terminal to implement measurement of various loss rates and discard rates for the QCI or the bearer or the terminal, and report the measurement result to the network.
  • the method in this embodiment can support uplink and/or downlink measurement. To meet the actual needs of MDT.
  • a storage medium is further provided, wherein the software includes the above-mentioned software, including but not limited to: an optical disk, a floppy disk, a hard disk, an erasable memory, and the like.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device for execution by the computing device and, in some cases, may be performed in a different order than herein.
  • the steps shown or described are either made separately into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
  • the terminal receives the first message carrying the minimized drive test MDT configuration sent by the network element, wherein the MDT is configured as a parameter for performing MDT measurement on the loss rate, and the loss rate is measured according to the MDT configuration, and The result of the measurement of the loss rate is reported, which solves the problem that the terminal cannot provide the loss rate to minimize the road test MDT measurement in the related art, thereby filling the gap of the related technology.

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

Abstract

L'invention concerne un procédé et un appareil pour une réduction au minimum de test d'entraînement (MDT) d'un taux de perte, le procédé comprenant les opérations suivantes : un terminal reçoit un premier message transportant des configurations de réduction au minimum de test d'entraînement (MDT) et envoyé par un élément de réseau, les configurations de MDT étant des paramètres pour mesurer une MDT d'un taux de perte ; le terminal mesure le taux de perte selon les configurations de MDT ; et le terminal rapporte un résultat de mesure du taux de perte. Au moyen de la présente invention, le problème dans l'état de la technique associé selon lequel la mesure d'une réduction au minimum de test d'entraînement (MDT) d'un taux de perte ne peut pas être fournie par un terminal, est résolu, permettant ainsi de combler les écarts dans l'état de la technique associé.
PCT/CN2015/090044 2015-04-10 2015-09-18 Procédé et appareil permettant une réduction au minimum de test d'entraînement de taux de perte Ceased WO2016161775A1 (fr)

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