WO2013023484A1 - Procédé et système de mise en œuvre de drx - Google Patents

Procédé et système de mise en œuvre de drx Download PDF

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Publication number
WO2013023484A1
WO2013023484A1 PCT/CN2012/077171 CN2012077171W WO2013023484A1 WO 2013023484 A1 WO2013023484 A1 WO 2013023484A1 CN 2012077171 W CN2012077171 W CN 2012077171W WO 2013023484 A1 WO2013023484 A1 WO 2013023484A1
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WO
WIPO (PCT)
Prior art keywords
drx
special
control
control signaling
drx control
Prior art date
Application number
PCT/CN2012/077171
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English (en)
Chinese (zh)
Inventor
毛磊
戴谦
邓云
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2013023484A1 publication Critical patent/WO2013023484A1/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
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • 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 communication or, in particular, to a method and system for implementing DRX (Discontinuous Reception). Background technique
  • the role of the DRX mechanism is simply that the user equipment (UE) stops listening to the physical downlink control channel (PDCCH) for a period of time, which saves power.
  • UE user equipment
  • DRX There are two types of DRX: One of them DRX is idle (IDLE) DRX. At this point, there is no Radio Resource Control (RRC) connection and the user's proprietary resources. If the UE wants to listen to the user data channel, it must first enter the connection state from the IDLE state.
  • RRC Radio Resource Control
  • the other DRX is a non-idle (ACTIVE) DRX, that is, the DRX in which the UE is in an RRC-CONNECTED state.
  • ACTIVE DRX optimizes system resource configuration and, more importantly, saves UE power.
  • the connected UE still requires paging (Paging) to learn the information modified by the system message, so for a connected UE, two DRX processes may be maintained.
  • Paging paging
  • the general system coordinates the configuration of the Paging period and the DRX period, so that the UE listens to the paging channel during the On Duration period to prevent the UE from waking up from the sleep state to read the Paging.
  • the longDRXcycle (long DRX cycle) is set to be large relative to the Paging period (such as tens of seconds;), it is more difficult to coordinate the configuration of the longDRXcycle and Paging cycles, and thus the UE will have a sleep period under DRX control. Paging occurs, so the UE needs to wake up during sleep.
  • the paging message does not include downlink signals or data other than paging signaling for the UE, which is disadvantageous for the UE to save power. Summary of the invention
  • the main object of the present invention is to provide a method and system for implementing DRX to ensure that the state of the UE can best match the transmission characteristics of the service data to achieve optimal power saving performance.
  • a method for implementing discontinuous reception of DRX comprising:
  • the user equipment UE enters a special DRX state according to the received DRX control signaling.
  • the new DRX control signaling includes a new media access control control element MAC
  • the special DRX state is: a DRX state determined by a specific parameter including a DRX cycle Cycle being an infinity infinity;
  • the manner of notifying the special DRX state includes: the UE is indicated by the index index to indicate one of a plurality of preset states; or, the UE is directly configured with a specific DRX configuration parameter as the notification.
  • the network side decides to perform special DRX control according to the transmission characteristics of the downlink data; or, the UE actively initiates a DRX status update request according to the transmission characteristics of the uplink data; or, the network side comprehensively determines the transmission characteristics of the uplink and downlink data to perform special DRX control and specific control methods.
  • the method further includes: when the UE is in a special DRX controlled sleep sleep, if there is uplink data to be sent, the UE initiates a random access procedure, and automatically exits the special
  • the UE wakes up after receiving the paging on the network side, initiates a random access procedure, and automatically exits the special DRX control process.
  • the method further includes:
  • the UE When the UE exits the special DRX control process, it reverts to the previous DRX control process, or is reconfigured by the network side to the DRX cycle.
  • a system for implementing a DRX includes a new DRX control signaling processing unit, and a DRX state triggering unit;
  • the new DRX control signaling processing unit is configured to introduce new DRX control signaling
  • the DRX state triggering unit is configured to notify the UE according to the new DRX control signaling introduced by the new DRX control signaling processing unit. Enter a special DRX state.
  • the new DRX control signaling includes at least one of a new MAC Control Element, RRC signaling, and physical layer control signaling;
  • the special DRX state is: a DRX state determined by a specific parameter including a DRX Cycle for infinity;
  • the DRX state triggering unit is configured to: indicate one of a plurality of predetermined states by using an index; or directly configure a specific DRX configuration parameter as the notification.
  • the new DRX control signaling processing unit is further configured to determine that special DRX control is required:
  • the triggering network determines that special DRX control is required, including: triggering the base station to perform special DRX control according to the sending characteristics of the downlink data, and send the DRX control signaling to the UE;
  • triggering the UE to perform special DRX control by using an active trigger including: triggering the UE to perform special DRX control according to the sending characteristics of the uplink data, and actively initiate a DRX status update request, and the network side agrees to send the DRX control signaling.
  • an active trigger including: triggering the UE to perform special DRX control according to the sending characteristics of the uplink data, and actively initiate a DRX status update request, and the network side agrees to send the DRX control signaling.
  • the UE is further configured to: initiate a random access procedure, and automatically exit the special DRX control process;
  • the UE is further configured to: wake up by the network side by paging paging, initiate a random access procedure, and automatically exit the special DRX control process.
  • the UE is further configured to: when exiting the special DRX control process, roll back to the previous
  • the DRX control process, or the DRX cycle is reconfigured by the network side.
  • the DRX technology of the present invention can ensure that the state of the UE can best match the transmission characteristics of the service data and achieve the best power saving performance.
  • FIG. 1 is a schematic flowchart of implementing DRX according to an embodiment of the present invention
  • FIG. 2 is a system diagram of implementing DRX according to an embodiment of the present invention. detailed description
  • new DRX control signaling can be introduced, and the UE can be quickly notified to enter a special DRX state through the DRX control signaling.
  • the UE can determine the optimal DRX cycle parameters based on the real-time data transmission characteristics, and can complete the configuration process through the new DRX control signaling in time, for example, updating the timer set by the UE according to the newly configured parameters. Value, to reduce the probability that the UE wakes up unnecessarily, to achieve better power saving effect.
  • the new DRX control signaling includes at least one of a new MAC Control Element, RRC signaling, physical layer control signaling, and the like;
  • the special DRX state is Refers to the DRX state determined by a specific parameter, such as the DRX cycle (infinity); the way to indicate the special DRX state is: by index (index) to indicate one of several predetermined states One. Of course, you can Configure specific DRX configuration parameters directly.
  • the network side may determine that special DRX control needs to be performed. For example, the evolved base station (eNB) decides to perform special DRX control according to the transmission characteristics of the downlink data, and sends DRX control signaling to the UE.
  • eNB evolved base station
  • the UE may also perform special DRX control by using an active trigger.
  • the UE requires the network side to perform special DRX control according to the transmission characteristics of the uplink data, and actively initiates a DRX status update request, and the network side agrees to send the DRX control signaling. Give the UE.
  • the transmission characteristics of the uplink and downlink data may be integrated, and the network side finally determines whether to perform special DRX control and a specific control mode, and sends DRX control signaling to the UE.
  • the UE When the UE is in the sleep period of the special DRX control, if there is uplink data to be sent, the UE may initiate a random access procedure, and automatically exit the special DRX control process, roll back to the previous DRX control process, or be reconfigured by the network side. DRX cycle; If there is downlink data to be sent, the network side wakes up the UE through paging, the UE initiates a random access procedure, and automatically exits the special DRX control process, and rolls back to the previous DRX control process, or reconfigures the DRX cycle by the network side. .
  • Embodiment 1 The following line data characteristics are judged based on whether to judge whether to perform special DRX control; the DRX command is triggered by the network side.
  • the UE1 in the RRC connected state is performing service transmission, and the eNB or the base station (Node B), the radio network side controller (RNC), and other forms of network side controllers, etc., configure the DRX configuration parameter for the UE1 according to the current service characteristics. :
  • onDurationTimer active period timer
  • sf8 8 subframes containing PDCCH
  • drx-InactivityTimer DRX deactivation timer
  • sf4 (4 subframes containing PDCCH
  • drx-RetransmissionTimer DRX retransmission timer
  • sf8 (8 subframes containing PDCCH);
  • longDRX-CycleStartOffset long DRX cycle start offset
  • sf640 640 sub-frames
  • INTEGER integer
  • shortDRX-Cycle short DRX cycle
  • sf32 32 subframes
  • the eNB finds that the data transmission characteristics change. For example, no downlink data is to be sent within the next 2 minutes.
  • the eNB determines to perform special DRX control on the UE1, and requires the UE to immediately enter a long-term sleep state. You do not need to wake up according to the configured DRX configuration parameters to achieve further power saving.
  • the eNB configures and sends the DRX control signaling to the UE1.
  • the eNB can configure the DRX configuration parameters.
  • the longDRX-CycleStartOffset can be configured to a particularly large value, such as sf2560, or even infinity.
  • Each DRX configuration is also composed of the above parameters, and the values are suitable for different service features.
  • the eNB directly informs the UE1 to use the first set of special DRX configurations through the configured DRX control signaling, and after receiving the UE1, the UE1 learns the parameters to be used according to the predefined parameter configuration.
  • the eNB may transmit DRX control signaling by using a new MAC Control Element, RRC signaling or physical layer control signaling;
  • the UE1 After receiving the DRX control signaling sent by the eNB, the UE1 configures a DRX configuration parameter such as a new DRX periodic parameter according to the indication, and performs a DRX process according to the new DRX configuration parameter.
  • a DRX configuration parameter such as a new DRX periodic parameter according to the indication
  • UE1 When UE1 is in sleep of special DRX control, if there is uplink data to be sent, UE1 may initiate a random access procedure and automatically exit the special DRX control procedure, fall back to the previous DRX control procedure, or reconfigure DRX by the eNB. If there is downlink data to be sent, the eNB wakes up UE1 through paging, UE1 initiates a random access procedure, and automatically exits the special The special DRX control process, back to the previous DRX control process, or the eNB reconfigures the DRX cycle.
  • Embodiment 2 The data of the above line is judged according to the judgment, the UE determines whether to update the DRX configuration parameter; and informs the current data transmission characteristics of the network; finally, the network side makes a decision to confirm whether the DRX command is triggered and the specific DRX configuration parameter is determined.
  • the UE2 in the RRC connected state is performing service transmission, and the eNB or the Node B, the RNC, and other forms of the network side controllers, and the DRX configuration parameters configured for the UE1 according to the current service characteristics are:
  • UE2 finds that the uplink data transmission characteristics change, for example, no uplink data is to be sent within the next 2 minutes;
  • the UE's UE2 actively initiates a DRX status update request to the eNB, which indicates the transmission interval of the uplink data.
  • the DRX status update request may be transmitted through a MAC Control Element, RRC signaling, or physical layer control signaling.
  • the eNB After receiving the DRX status update request sent by the UE2, the eNB decides whether to perform special DRX control on the UE2 according to the configured uplink data transmission interval and in combination with the current downlink data transmission feature.
  • the specific decision process may be: if the UE2 is running the pure uplink service, the eNB may determine the DRX configuration parameter used for performing the special DRX control according to the uplink data sending interval configured in the DRX state update request sent by the UE2; If UE2 is currently running bidirectional services, the eNB needs to determine the transmission characteristics of the downlink data of UE2, comprehensively consider the characteristics of uplink and downlink data transmission, and finally determine the DRX configuration parameters used for special DRX control. For example, the DRX configuration parameters are configured based on the data in the direction in which the data transmission interval is small.
  • the eNB configures and sends the DRX control signaling to the UE2.
  • the eNB can configure the DRX configuration parameters.
  • the longDRX-CycleStartOffset can be configured to a particularly large value, such as sf2560, or even infinity.
  • Each DRX configuration is also composed of the above parameters, and the values are suitable for different service features.
  • the eNB directly informs the UE1 to use the first set of special DRX configurations through the configured DRX control signaling, and after receiving the UE1, the UE1 learns the parameters to be used according to the predefined parameter configuration.
  • the eNB may transmit DRX control signaling by using a new MAC Control Element, RRC signaling or a physical layer control signal;
  • the UE2 After receiving the DRX control signaling sent by the eNB, the UE2 configures a DRX configuration parameter such as a new DRX periodic parameter according to the indication, and executes the DRX process according to the new DRX configuration parameter.
  • a DRX configuration parameter such as a new DRX periodic parameter according to the indication
  • UE2 When UE2 is in sleep of special DRX control, if there is uplink data to be sent, UE2 may initiate a random access procedure and automatically exit the special DRX control procedure, fall back to the previous DRX control procedure, or reconfigure DRX by the eNB. If there is downlink data to be sent, the eNB wakes up UE2 by paging, UE2 initiates a random access procedure, and automatically exits the special DRX control process, and rolls back to the previous DRX control process, or the eNB reconfigures the DRX cycle.
  • the DRX operation of the present invention may represent the process shown in FIG. 1, and the process includes the following steps:
  • Step 110 Introduce new DRX control signaling.
  • Step 120 Inform the UE to enter a special DRX according to the introduced new DRX control signaling. status.
  • FIG. 2 is a system diagram of implementing DRX according to an embodiment of the present invention, where the system includes a new DRX control signaling processing unit and a DRX state triggering unit.
  • the new DRX control signaling processing unit can introduce new DRX control signals.
  • the DRX state triggering unit is configured to notify the UE to enter a special DRX state according to the new DRX control signaling introduced by the new DRX control signaling processing unit.
  • the DRX technology can ensure that the state of the UE can best match the transmission characteristics of the service data and achieve the best power saving performance, regardless of the method or the system.

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

Abstract

L'invention porte sur un procédé et un système de mise en œuvre de réception discontinue (DRX), de manière à ce qu'un UE puisse passer dans un état DRX spécial conformément à une signalisation de commande DRX reçue. Par mise en œuvre de la technologie DRX selon la présente invention, il est assuré qu'un état de l'UE peut correspondre d'une manière optimale à une caractéristique d'envoi de données de service, ce qui permet d'atteindre des performances d'économie d'énergie optimales.
PCT/CN2012/077171 2011-08-12 2012-06-19 Procédé et système de mise en œuvre de drx WO2013023484A1 (fr)

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Application Number Priority Date Filing Date Title
CN201110231611.3A CN102932884B (zh) 2011-08-12 2011-08-12 一种实现drx的方法和系统
CN201110231611.3 2011-08-12

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US10075988B2 (en) * 2014-01-06 2018-09-11 Intel IP Corporation Discontinuous reception (DRX) alignment techniques for dual-connectivity architectures
CN104812031A (zh) * 2014-01-26 2015-07-29 中兴通讯股份有限公司 Mtc用户设备的节能方法及系统、用户设备、rnc
US10499451B2 (en) 2014-06-13 2019-12-03 Apple Inc. Adaptive C-DRX management
CN108616902B (zh) * 2016-12-14 2020-03-17 维沃移动通信有限公司 非连续接收的方法、配置方法、终端、基站及配置系统
KR102313704B1 (ko) * 2017-05-04 2021-10-18 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 불연속 수신을 위한 방법과 장치
CN113541904A (zh) * 2017-06-16 2021-10-22 华为技术有限公司 Drx配置方法、终端设备、网络设备和通信系统
CN110536380A (zh) * 2018-08-10 2019-12-03 中兴通讯股份有限公司 状态确定、指示方法、通信设备、系统及存储介质
WO2021147006A1 (fr) * 2020-01-22 2021-07-29 Lenovo (Beijing) Limited Alignement de réception de liaison latérale
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