WO2013020417A1 - Procédé et système de réception discontinue - Google Patents

Procédé et système de réception discontinue Download PDF

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Publication number
WO2013020417A1
WO2013020417A1 PCT/CN2012/077163 CN2012077163W WO2013020417A1 WO 2013020417 A1 WO2013020417 A1 WO 2013020417A1 CN 2012077163 W CN2012077163 W CN 2012077163W WO 2013020417 A1 WO2013020417 A1 WO 2013020417A1
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WO
WIPO (PCT)
Prior art keywords
drx
terminal
parameters
service
network side
Prior art date
Application number
PCT/CN2012/077163
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English (en)
Chinese (zh)
Inventor
毛磊
戴谦
邓云
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中兴通讯股份有限公司
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Publication of WO2013020417A1 publication Critical patent/WO2013020417A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a discontinuous reception method and system. Background technique
  • Discontinuous Reception means that the terminal stops listening to the Physical Downlink Control Channel (PDCCH) for a period of time.
  • PDCH Physical Downlink Control Channel
  • IDLE Radio Resource Control
  • the other is to activate (Active) DRX, which is the DRX in the RRC-CONNECTED state of the terminal. It can optimize the system resource configuration. More importantly, it can save the terminal power consumption. It does not need to let the terminal enter the RRC.
  • the idle (RRCJDLE) state can save the power consumption of the terminal. For example, some non-real-time applications (web browsing, instant communication, etc.) always exist for a period of time, and the terminal does not need to continuously monitor the downlink data, and does not need to perform related processing. , DRX can be applied to such a scenario. In addition, since there is an RRC connection in the Active DRX state, the terminal has to go to the state of listening to the downlink data very quickly.
  • timers There are some timers in DRX. Some timers are described below, where all times are subframe-based, that is, in ms:
  • the terminal maintains a waking time each time it wakes up from DRX, and the terminal searches during that time. PDCCH.
  • stop timer Inactivity Timer
  • the terminal When the terminal is awake, it successfully keeps the active time after the PDCCH originally transmitted by the hybrid automatic repeat request (HARQ, Hybrid Automatic Repeat Reqest), that is, when the PDCCH received by the terminal indicates an initial transmission of UL/DL. After (instead of retransmission), it is necessary to maintain Active time. When the terminal is awake, it will keep Active for each time it successfully decodes the PDCCH originally transmitted by HARQ.
  • HARQ Hybrid Automatic Repeat Reqest
  • the Active Time includes the following times: On Duration Timer, Inactivity Timer, DRX Retransmission Timer, and MAC Layerion Resolution Timer running time; or, scheduling The request (SR, Scheduling Req terminal set) has been sent to the PUCCH and is in a suspended state (that is, the scheduling request has not been satisfied); or, there is an uplink grant for a pending HARQ, and the corresponding HARQ buffer There is data; or, after non-contention random access, the random access response message is successfully received, and there should be a PDCCH sent to the terminal to indicate a new transmission, but the PDCCH has not been received yet, and the terminal still Must be in an Active state.
  • SR Scheduling Req terminal set
  • the minimum interval at which the terminal expects the downlink retransmission (DL Retransmission) to arrive is that the terminal does not need to pay attention to when the retransmission will occur at the earliest. As long as the timer expires, the terminal is in a awake state.
  • DRX Retransmission Timer The time that the terminal expects to receive the DL Retransmission is that it takes so much time to accept the downlink.
  • this subframe HARQ RTT Timer (the shortest time expected to retransmit) times out, retransmission may come, if there is still no successful decoding data for the soft buffer of the HARQ process (that is, the previous data reception failed. , data retransmission is required, and the DRX Retransmission Timer is started to start monitoring the data related to the PDCCH retransmission. If the DRX MAC control information element is received, it means that the eNB requires the terminal to enter a sleep state. At this time, the On Duration Timer and the DRX Inactivity Timer are stopped, but the timer related to the retransmission is not stopped, and the terminal is required to continue. Listen for retransmitted content.
  • the starting point for setting the two-stage DRX Cycle is that it is more likely that there will be data transmission immediately after the end of a data transmission process of the terminal. Therefore, a short DRX cycle is set to cope with this probability, and there is no data in several short DRX cycles. To transmit, it means that the data transmission has indeed been completed, and it can enter deep sleep state, so that long and short period cooperation can achieve better DRX effect. fruit.
  • the above is the definition of different Timers and the DRX execution flow in the DRX mechanism described by the LTE system.
  • the DRX mechanism can also be applied to other systems, such as Universal Mobile Telecommunications System (UMTS, Universal Mobile Telecommunications System), Global System of Mobile Communication (GSM), etc.
  • UMTS Universal Mobile Telecommunications System
  • GSM Global System of Mobile Communication
  • a set of DRX parameters refers to the above-mentioned running DRX process.
  • all the Timers involved that is to say, a terminal can only run at most one DRX process.
  • the value of the Timer involved in the DRX process is determined according to the characteristics of the service being performed by the terminal (such as the periodicity of the service data transmission), and is configured by the network side to the terminal, and the terminal and the network side jointly perform the DRX process according to the configured parameters. Control process.
  • the main object of the present invention is to provide a discontinuous reception method and system, which can achieve the best match between the behavior of the terminal and the characteristics of the service, and achieve the purpose of power saving.
  • the present invention provides a discontinuous reception method, including:
  • the terminal receives at least one set of discontinuous reception DRX parameters configured and sent by the network side, and according to The at least one set of DRX parameters initiates a corresponding number of DRX processes.
  • the network side configures at least one set of DRX parameters for the terminal: the network side determines whether the characteristics of the service are suitable for configuring the DRX mechanism according to characteristics of multiple services running on the terminal or according to characteristics of the integrated service that is running, if The set of DRX parameters can match all the services. The network side configures a set of DRX parameters for the terminal. If a set of DRX parameters cannot match all services, the network side configures multiple sets of DRX parameters for the terminal.
  • the plurality of services are one or more services concurrently and simultaneously running in the terminal;
  • the integrated service is a service including a plurality of single services.
  • the terminal starts the corresponding number of DRX processes according to the at least one set of DRX parameters:
  • the terminal starts a DRX process.
  • the terminal starts a corresponding number of DRX processes, and one DRX process corresponds to one set of DRX parameters, and multiple DRX processes are processed or coordinated in parallel.
  • the terminal receives at least one set of DRX parameters sent by the network side, and starts a corresponding number of DRX processes according to the at least one set of DRX parameters:
  • the terminal receives a set of DRX parameters periodically configured by the network side according to the data transmission of the service one, and starts a DRX process according to the configured DRX parameters;
  • the network side separately configures a set of DRX parameters for the terminal according to the data transmission periodicity of the service 2, and the terminal starts the second according to the separately configured DRX parameters.
  • DRX process If the data transmission period of the service 2 does not have a multiple relationship with the data transmission period of the service 1, the network side separately configures a set of DRX parameters for the terminal according to the data transmission periodicity of the service 2, and the terminal starts the second according to the separately configured DRX parameters. DRX process.
  • the terminal receives at least one set of DRX parameters sent by the network side, and starts a corresponding number of DRX processes according to the at least one set of DRX parameters:
  • the terminal receives the data transmission of the network side according to the sub-service 1 and the sub-service 2 of the integrated service.
  • Two sets of DRX parameters are periodically configured. According to the two sets of DRX parameters received, two DRX processes are started accordingly.
  • the two sets of DRX parameters periodically configured by the network side according to the data transmission of the sub-service 1 and the sub-service 2 of the integrated service are sent by the network side through dedicated control signaling, and the dedicated control signaling is used.
  • Two sets of DRX parameters are carried in the form of a list, and the correspondence between the first set of DRX parameters and the sub-services 1 and the corresponding relationship between the second set of DRX parameters and the sub-services 2 are carried in the list.
  • the DRX parameter includes a continuous operation timer On Duration Timer, a DRX stop timer, a DRX Inactivity Timer, a DRX retransmission timer, a DRX Retransmission Timer, and a long
  • the DRX parameters further include: short DRX cycle short DRX Cycle, short DRX cycle number DRX short Cycle Timer.
  • the present invention further provides a discontinuous receiving system, including: a network side and a terminal; wherein, the network side is configured to configure at least one set of DRX parameters for the terminal, and send the same to the terminal; and the terminal is configured to receive the network side configuration and send the At least one set of DRX parameters, and starting a corresponding number of DRX processes according to the at least one set of DRX parameters.
  • a discontinuous receiving system including: a network side and a terminal; wherein, the network side is configured to configure at least one set of DRX parameters for the terminal, and send the same to the terminal; and the terminal is configured to receive the network side configuration and send the At least one set of DRX parameters, and starting a corresponding number of DRX processes according to the at least one set of DRX parameters.
  • the DRX parameters include an On Duration Timer, a DRX Inactivity Timer, a DRX Retransmission Timer, and a long DRX Cycle StartOffset;
  • the DRX parameters further include: short DRX Cycle, DRX short Cycle Timer.
  • the method and system for discontinuous reception provided by the present invention, the terminal receives at least one set of DRX parameters configured and transmitted by the network side, and starts a corresponding number of DRX processes according to the at least one set of DRX parameters, in order to adapt the terminal to run at the same time Services, multiple sets of DRX parameters are configured on the network side, and the terminal can enable multiple DRX processes, thus achieving the best performance of terminal behavior and service characteristics. Match, eventually achieve the purpose of power saving.
  • DRAWINGS short DRX Cycle, DRX short Cycle Timer.
  • FIG. 1 is a schematic flow chart of a method for implementing a discontinuous reception according to the present invention
  • FIG. 2 is a schematic flowchart of Embodiment 1 of a method for implementing a discontinuous reception according to the present invention
  • FIG. 3 is a schematic diagram of a DRX cycle of a service according to Embodiment 1 of the present invention for implementing a discontinuous reception method
  • FIG. 4 is a schematic flow chart of Embodiment 2 of the method for implementing discontinuous reception according to the present invention
  • FIG. 5 is a schematic structural diagram of a discontinuous reception system according to the present invention. detailed description
  • the terminal receives at least one set of DRX parameters configured and transmitted by the network side, and starts a corresponding number of DRX processes according to the at least one set of DRX parameters.
  • FIG. 1 is a schematic flowchart of a method for implementing a discontinuous reception according to the present invention. As shown in FIG. 1, the method includes the following steps:
  • Step 101 The network side configures at least one set of DRX parameters for the terminal, and sends the terminal to the terminal. Specifically, the network side configures at least one set of DRX parameters for the terminal according to characteristics of multiple services running on the terminal or according to characteristics of the integrated service.
  • the plurality of services refer to more than one service concurrently and simultaneously running in the terminal, and each of the services has its own characteristics, such as data transmission periodicity, data packet size, delay requirement, etc.; Refers to a service that includes multiple single services, such as a single program including images, sounds, letters, etc. in a movie program, and the characteristics of each single program may be different; the network side judges according to the characteristics of the service or according to the characteristics of the integrated service being operated.
  • the service is suitable for configuring the DRX mechanism. For example, if the service data is sent periodically, the service is suitable for configuring the DRX mechanism. If the service data is sent without obvious rules, the service is not suitable for configuring the DRX mechanism. If appropriate, judge Configure the DRX parameters to match all services. If yes, the network side can decide to configure multiple sets of DRX parameters for the terminal. If not, the network side decides to configure a set of DRX parameters for the terminal, and the network side configures signaling through DRX. Send at least one set of configured DRX parameters to the terminal.
  • Step 102 The terminal receives at least one set of DRX parameters configured and sent by the network, and starts a corresponding number of DRX processes according to at least one set of DRX parameters.
  • the terminal receives at least one set of DRX parameters that are configured by the network side and are sent by using the DRX configuration signaling, and starts a corresponding number of DRX processes in the terminal according to the configured at least one set of DRX parameters;
  • the terminal starts a DRX process. If multiple sets of DRX parameters are configured on the network side, the terminal starts a corresponding number of DRX processes. One DRX process corresponds to a set of DRX parameters configured on the network side. In the parallel multiple DRX processes, the execution process of each single DRX process is the same as the execution process of starting a DRX process in the existing terminal, and will not be described here; in addition, multiple DRX processes can be processed in parallel. Can coordinate processing;
  • the terminal can process only the data transmission and reception of the corresponding service of the DRX process, and does not process the data transmission and reception of the service corresponding to the DRX process 2.
  • the terminal can process the data transmission and reception of the corresponding service of the DRX process, and during this period, when the DRX process 2 corresponds to When the service needs to transmit and receive data, the data of the service corresponding to the DRX process 2 can also be transmitted and received.
  • Embodiment 1 is a schematic flowchart of Embodiment 1 of a method for implementing discontinuous reception according to the present invention. As shown in the figure, the method includes the following steps:
  • Step 201 The network side periodically configures a DRX for the terminal according to the data transmission of the service one. Parameters, and the configured DRX parameters are sent to the terminal by signaling;
  • the service is running in the terminal, and the data transmission of the service has a certain periodicity. Therefore, the DRX control is suitable for the terminal, and the network side periodically configures a DRX parameter for the terminal according to the data transmission of the service 1.
  • the DRX parameter includes On. Duration Timer, DRX Inactivity Timer, DRX Retransmission Timer, long DRX Cycle StartOffset, optionally, short DRX Cycle and short DRX Cycle (DRX short Cycle Timer);
  • the DRX parameters configured on the side are sent to the terminal through dedicated control signaling.
  • Step 202 The terminal starts a DRX process according to the configured DRX parameter.
  • the terminal After receiving the dedicated control signaling, the terminal starts one according to the DRX parameter therein.
  • the DRX process sets the corresponding Timer and performs the corresponding action when a specific Timer arrives according to the existing DRX mechanism.
  • Step 203 If the data transmission period of the service 2 has no multiple relationship with the data transmission period of the service 1, the network side separately configures a set of DRX parameters for the terminal according to the data transmission periodicity of the service 2;
  • the terminal performs a new service at the same time as the service one, and the feature of the service 2 is also suitable for performing the DRX mechanism, but the data transmission of the service 2 is different from the service one periodically, and the network side judges the service 2 and the service one.
  • the difference in the periodicity of data transmission to determine whether it is necessary to separately configure a set of DRX parameters for service two;
  • the DRX parameter currently configured by the terminal for the service 1 is also applicable to the service 2, and the DRX parameter is not separately configured for the service 2; for example, if the service is one
  • the data transmission period is 64 subframes, and the data transmission period of service 2 is 128 subframes.
  • the DRX parameters currently configured by the terminal for the service one are set based on 64 subframes, so the period of the newly initiated service 2 can also be matched. Go to the DRX parameter.
  • the network side can separately configure a set of DRX parameters for the service 2 according to the data transmission period of the service 2; and send a set of DRX parameters configured for the service 2 to the terminal through dedicated signaling, such as Radio bearer reconfiguration signaling.
  • DRX cycle DRX Cycle of service one is 512sf
  • DRX cycle of service 2 is 640sf. If you want to configure a common DRX cycle, you need to configure the minimum common divisor of 512 and 640. Matching two services at the same time, and the minimum common divisor of 512 and 640 is 128. That is to say, when the DRX cycle is configured to 128, it can meet the requirements of two services, but such operation is analyzed according to the total number of wake-ups. In conclusion, it is close to 60% of wakeups that are useless, so it is beneficial to configure a set of DRX parameters separately for Service 2.
  • Step 204 The terminal starts the second DRX process according to the separately configured DRX parameter. Specifically, the terminal receives the second set of DRX parameters sent by the network side, and starts the second DRX process in the terminal according to the DRX parameter.
  • the execution process of any one of the two DRX processes is the same as the prior art, and in addition, the two DRX processes can also coordinate processing.
  • FIG. 4 is a schematic flowchart of Embodiment 2 of the method for implementing discontinuous reception according to the present invention. As shown in FIG. 4, the method includes the following steps:
  • Step 401 The network side configures two sets of DRX parameters for the terminal according to different data transmission periodicity of the sub-service 1 and the sub-service 2 of the integrated service;
  • the terminal runs an integrated service, where the integrated service consists of two single services, namely, a sub-service 1 and a sub-service 2.
  • the data transmission of the sub-service 1 and the sub-service 2 have a certain periodicity, and is suitable for performing DRX control.
  • the data transmission of the two services is cyclically different;
  • the network side periodically configures the first set of DRX parameters for the terminal according to the data transmission of the sub-service 1, including the On Duration Timer, the DRX Inactivity Timer, and the DRX Retransmission.
  • Timer, long DRX Cycle StartOffset optionally, may also include a short DRX Cycle and a short DRX Cycle Timer;
  • the network side periodically configures a second set of DRX parameters according to the data transmission of the sub-service 2, including the On Duration Timer, the DRX Inactivity Timer, the DRX Retransmission Timer, the long DRX Cycle StartOffset, and optionally, the short DRX Cycle and DRX shortCycle Timer;
  • the dedicated control signaling can carry two sets of DRX parameters in a list.
  • the list carries the correspondence between the first set of DRX parameters and the sub-services, and Correspondence between the second set of DRX parameters and sub-service 2.
  • Step 402 The terminal starts two DRX processes according to the received two sets of DRX parameters. Specifically, after receiving two sets of DRX parameters, the terminal starts two DRX processes, for the sub-service 1 and the sub-service 2, respectively, according to the DRX parameter.
  • the corresponding Timer is set up, and the corresponding action is performed when a specific Timer arrives according to the existing DRX mechanism; wherein, the execution process of any one of the two DRX processes in parallel in the terminal is the same as the prior art,
  • the two DRX processes can also be coordinated.
  • FIG. 5 is a schematic structural diagram of a discontinuous receiving system according to the present invention. As shown in FIG. 5, the system includes: a network side 51 and a terminal 52;
  • the network side 51 is configured to configure at least one set of DRX parameters for the terminal 52, and send the terminal to the terminal 52.
  • the terminal 52 is configured to receive at least one set of DRX parameters configured and sent by the network side 51, and according to the at least one set of DRX parameters. , start the corresponding number of DRX processes.
  • the DRX parameters include an On Duration Timer, a DRX Inactivity Timer, a DRX Retransmission Timer, and a long DRX Cycle StartOffset;
  • the DRX parameters further include: short DRX Cycle, DRX short Cycle Timer.
  • the network side 51 configures at least one set of DRX parameters for the terminal 52 as: If a set of DRX parameters can match all services, the network side configures a set of DRX parameters for the terminal, if a DRX parameter is suitable for configuring the DRX mechanism according to the characteristics of the running services. The parameters cannot match all services, and the network side configures multiple sets of DRX parameters for the terminal.
  • the terminal 52 starts a corresponding number of DRX processes according to the at least one set of DRX parameters: If a DRX parameter is configured on the network side, the terminal starts a DRX process; if multiple DRX parameters are configured on the network side, the terminal starts the corresponding number.
  • a DRX process, and one DRX process corresponds to a set of DRX parameters, and multiple DRX processes are processed in parallel or coordinated.

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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 de réception discontinue (DRX), comprenant les opérations suivantes : un terminal reçoit au moins un ensemble de paramètres DRX configurés et envoyés par un côté réseau ; et commence des processus DRX d'une quantité correspondante selon le ou les ensembles de paramètres DRX. La présente invention concerne en outre un système de réception discontinue. Selon la solution technique de la présente invention, une correspondance optimale entre des caractéristiques d'un comportement et celles d'un service d'un terminal peut être mise en œuvre, de façon à atteindre le but d'économie d'énergie.
PCT/CN2012/077163 2011-08-10 2012-06-19 Procédé et système de réception discontinue WO2013020417A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110228767.6 2011-08-10
CN201110228767.6A CN102932882B (zh) 2011-08-10 2011-08-10 一种非连续接收方法及系统

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WO2013020417A1 true WO2013020417A1 (fr) 2013-02-14

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