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WO2019153361A1 - Procédé de communication sans fil et dispositif terminal - Google Patents

Procédé de communication sans fil et dispositif terminal Download PDF

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Publication number
WO2019153361A1
WO2019153361A1 PCT/CN2018/076573 CN2018076573W WO2019153361A1 WO 2019153361 A1 WO2019153361 A1 WO 2019153361A1 CN 2018076573 W CN2018076573 W CN 2018076573W WO 2019153361 A1 WO2019153361 A1 WO 2019153361A1
Authority
WO
WIPO (PCT)
Prior art keywords
system information
terminal device
information request
timer
mac layer
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2018/076573
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English (en)
Chinese (zh)
Inventor
石聪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
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 Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to CN201880003145.3A priority Critical patent/CN109644463B/zh
Priority to PCT/CN2018/076573 priority patent/WO2019153361A1/fr
Publication of WO2019153361A1 publication Critical patent/WO2019153361A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/14—Access restriction or access information delivery, e.g. discovery data delivery using user query or user detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0289—Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel

Definitions

  • the present application relates to the field of communications, and more particularly to a method and terminal device for wireless communication.
  • the terminal device triggers System Information (SI) request at the Media Access Control (MAC) layer by the terminal device.
  • SI System Information
  • MAC Media Access Control
  • the generated does not introduce a mechanism for limiting the transmission frequency. Therefore, it may happen that the MAC request is excessively frequent based on the first message (Message 1, MSG1) in the random access procedure, resulting in a network device (for example, , base station) congestion of the uplink random access channel (RACH).
  • Message 1, MSG1 the first message
  • RACH uplink random access channel
  • the embodiment of the present application provides a method and a terminal device for wireless communication, where the terminal device can control the sending of the system information request of the MAC layer based on the timer, thereby preventing the MAC layer from frequently requesting the SIG1 based on the MSG1 in the random access process. Scheduling and avoiding congestion on the uplink random access channel.
  • an embodiment of the present application provides a method for wireless communication, including:
  • the terminal device starts the timer when the first layer system information request is generated by the MAC layer and the first system information request is sent to the network device.
  • the terminal device starts a timer when the MAC layer generates the first system information request and sends the first system information request to the network device, so that the terminal device can be based on the timer control.
  • the MAC layer is based on the transmission of the SI request of the MSG1 in the random access procedure, and further avoids frequent scheduling of the MAC layer based on the SI request of the MSG1 in the random access procedure, and avoids congestion of the uplink random access channel.
  • the method further includes:
  • the terminal device generates a second system information request at the MAC layer within the duration of the timer, and reserves the second system information request at the MAC layer;
  • the terminal device sends the second system information request to the network device when the timer expires.
  • the method further includes:
  • the terminal device acquires system information requested by the first system information request within a duration of the timer;
  • the terminal device stops the timer.
  • the method further includes:
  • the terminal device starts the timer when the MAC layer generates the third system information request, where the third system information request is the first system information request generated by the terminal device after the timer is stopped.
  • the method further includes:
  • the terminal device generates a fourth system information request at the MAC layer within the duration of the timer, and reserves the fourth system information request at the MAC layer;
  • the terminal device After generating the fourth system information request, the terminal device acquires system information requested by the first system information request within a duration of the timer;
  • the terminal device stops the timer and deletes the fourth system information request.
  • the method further includes:
  • the terminal device starts the timer when the MAC layer generates the fifth system information request, where the fifth system information request is the first system information request generated by the terminal device after the timer is stopped.
  • the acquiring, by the terminal device, the system information requested by the first system information request including:
  • the terminal device acquires system information requested by the first system information request by reading a system information block, or
  • the terminal device receives an RRC message sent by the network device to indicate system information requested by the first system information request.
  • the system information request generated by the terminal device at the MAC layer is a system information request generated according to the MSG1 in the random access procedure.
  • the duration of the timer is maintained at the MAC layer.
  • the terminal device receives the configuration information sent by the network device, including:
  • the terminal device receives the configuration information that is sent by the network device by using RRC dedicated signaling.
  • the embodiment of the present application provides a terminal device, which can execute the module or unit of the method in the first aspect or any optional implementation manner of the first aspect.
  • a terminal device comprising a processor, a memory, and a communication interface.
  • the processor is coupled to the memory and communication interface.
  • the memory is for storing instructions for the processor to execute, and the communication interface is for communicating with other network elements under the control of the processor.
  • the processor executes the instructions stored by the memory, the execution causes the processor to perform the method of the first aspect or any of the possible implementations of the first aspect.
  • a computer storage medium having stored therein program code for instructing a computer to execute instructions of the methods described in the above aspects.
  • a computer program product comprising instructions, when executed on a computer, causes the computer to perform the methods described in the various aspects above.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for wireless communication according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a timer changing according to an SI request in the embodiment of the present application.
  • FIG. 4 is a schematic diagram of another timer in the embodiment of the present application as a function of SI request transmission.
  • FIG. 5 is a schematic diagram of another timer in the embodiment of the present application as a function of sending an SI request.
  • FIG. 6 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 7 is a schematic block diagram of an apparatus for wireless communication provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a system chip according to an embodiment of the present application.
  • the technical solution of the embodiment of the present application can be applied to a 5G NR communication system.
  • the terminal device in the embodiment of the present application may refer to a user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless device.
  • Communication device user agent or user device.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • Functional handheld device computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, terminal device in a 5G network or terminal in a future evolved public land mobile network (PLMN)
  • PLMN public land mobile network
  • the present application describes various embodiments in connection with a network device.
  • the network device in the embodiment of the present application may be a device for communicating with the terminal device, where the network device may be an evolved base station (Evolutional NodeB, eNB or eNodeB) in the LTE system, or may be a cloud wireless access network (Cloud A radio controller in a Radio Access Network (CRAN) scenario, or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, a Next Generation Evolutional NodeB (NG-eNB), and a 5G network.
  • the embodiment of the present application is not limited in the case of an access network device (for example, gNB) or an access network device in a publicly-developed public land mobile network (PLMN) network.
  • PLMN public land mobile network
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the wireless communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device. The application embodiment does not limit this.
  • the wireless communication system 100 may further include an Access and Mobility Management Function (AMF), a Session Management Function (SMF), and a Unified Data Management (UDM).
  • AMF Access and Mobility Management Function
  • SMF Session Management Function
  • UDM Unified Data Management
  • Other network entities such as an authentication server function (AUSF), are not limited in this embodiment of the present application.
  • the term "article of manufacture” as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or media.
  • the computer readable medium may include, but is not limited to, a magnetic storage device (eg, a hard disk, a floppy disk, or a magnetic tape, etc.), such as a compact disc (CD), a digital versatile disc (Digital Versatile Disc, DVD). Etc.), smart cards and flash memory devices (eg, Erasable Programmable Read-Only Memory (EPROM), cards, sticks or key drivers, etc.).
  • various storage media described herein can represent one or more devices and/or other machine-readable media for storing information.
  • machine-readable medium may include, but is not limited to, a variety of media capable of storing, containing, and/or carrying instructions and/or data.
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • FIG. 2 is a schematic flow diagram of a method 200 of wireless communication in accordance with an embodiment of the present application.
  • the method 200 is optionally applicable to the system shown in FIG. 1, but is not limited thereto.
  • the method 200 includes at least some of the following.
  • the terminal device receives configuration information sent by the network device, where the configuration information is used to indicate a duration of the timer.
  • the system information request generated by the terminal device at the MAC layer is a system information request generated based on the MSG1 in the random access procedure.
  • a system information request generated based on MSG1 in a contention-based random access procedure For example, a system information request generated based on MSG1 in a non-contention random access procedure.
  • the duration of the timer is maintained at the MAC layer.
  • the terminal device receives the configuration information that is sent by the network device by using RRC dedicated signaling.
  • the timer may be a Prohibit Timer that constrains the SI request.
  • the terminal device starts the timer when the first layer system information request is generated by the MAC layer, and the first system information request is sent to the network device.
  • the terminal device may obtain the system information requested by the first system information request by reading a System Information Block (SIB).
  • SIB System Information Block
  • the terminal device can obtain the system information requested by the first system information request by reading the SIB1, and the system information requested by the other terminal device to trigger the first system information request is saved in the SIB1.
  • the terminal device receives an RRC message sent by the network device to indicate system information requested by the first system information request.
  • the method 200 further includes:
  • the terminal device generates a second system information request at the MAC layer within the duration of the timer, and reserves the second system information request at the MAC layer;
  • the terminal device sends the second system information request to the network device when the timer expires.
  • the expiration of the timer can also be understood as a timer timeout, and can also be understood as a timer failure, that is, the timer stops working after the duration of the timer is exceeded.
  • the terminal device when the terminal device generates an SI request 1 at the MAC layer and a SI request 1 to the network device at time 1, the timer starts, and the terminal device is at time 2 (time 2 is at the timer).
  • SI request 2 is generated at the RRC layer, and the terminal device reserves the SI request 2 at the MAC layer, and the terminal device sends the SI request 2 to the network device when the timer expires.
  • the method 200 further includes:
  • the terminal device acquires system information requested by the first system information request within a duration of the timer;
  • the terminal device stops the timer.
  • the method 200 further includes:
  • the terminal device starts the timer when the MAC layer generates the third system information request, where the third system information request is the first system information request generated by the terminal device after the timer is stopped.
  • the terminal device when the terminal device generates the SI request 1 at the MAC layer and sends the SI request 1 to the network device at time 1, the terminal starts the timer, and the terminal device is at the time 2 (the time 2 is within the duration of the timer).
  • the terminal device stops the timer.
  • the terminal device generates SI request 3 at the MAC layer at time 3 (the first SI request generated by the terminal device after the timer is stopped), and the terminal device starts a timer.
  • the method 200 further includes:
  • the terminal device generates a fourth system information request at the MAC layer within the duration of the timer, and reserves the fourth system information request at the MAC layer;
  • the terminal device After generating the fourth system information request, the terminal device acquires system information requested by the first system information request within a duration of the timer;
  • the terminal device stops the timer and deletes the fourth system information request.
  • the method 200 further includes:
  • the terminal device starts the timer when the MAC layer generates the fifth system information request, where the fifth system information request is the first system information request generated by the terminal device after the timer is stopped.
  • the terminal device when the terminal device generates the SI request 1 at the MAC layer and sends the SI request 1 to the network device at time 1, the terminal starts the timer, and the terminal device is at the time 2 (the time 2 is within the duration of the timer).
  • the SI request 4 is generated at the MAC layer, and the SI request 4 is reserved at the MAC layer.
  • the terminal device acquires the SI requested by the SI request 1 at time 3 (time 3 is within the duration of the timer), and the terminal device stops the timer. , delete the SI request 4 reserved by the MAC layer.
  • the terminal device generates the SI request 5 at the MAC layer at time 4 (the first SI request generated by the terminal device after the timer is stopped), and the terminal device starts the timer.
  • the terminal device starts a timer when the MAC layer generates the first system information request and sends the first system information request to the network device, so that the terminal device can be based on the timer control.
  • the MAC layer is based on the transmission of the SI request of the MSG1 in the random access procedure, and further avoids frequent scheduling of the MAC layer based on the SI request of the MSG1 in the random access procedure, and avoids congestion of the uplink random access channel.
  • FIG. 6 is a schematic block diagram of a terminal device 300 according to an embodiment of the present application.
  • the terminal device 300 includes:
  • the communication unit 310 is configured to receive configuration information sent by the network device, where the configuration information is used to indicate a duration of the timer;
  • the processing unit 320 is configured to start the first system information request at the MAC layer, and start the timer when the first system information request is sent to the network device.
  • the processing unit 320 is further configured to generate a second system information request at the MAC layer within the duration of the timer, and retain the second system information request at the MAC layer;
  • the processing unit 320 is further configured to send the second system information request to the network device when the timer expires.
  • the processing unit 320 is further configured to: acquire system information requested by the first system information request within a duration of the timer;
  • the processing unit 320 is further configured to stop the timer.
  • the processing unit 320 is further configured to start the timer when the MAC layer generates the third system information request, where the third system information request is the first system generated by the terminal device after the timer stops. Information request.
  • the processing unit 320 is further configured to: after the duration of the timer, generate a fourth system information request at the MAC layer, and reserve the fourth system information request at the MAC layer;
  • the processing unit 320 is further configured to: after generating the fourth system information request, acquire system information requested by the first system information request within a duration of the timer;
  • the processing unit 320 is further configured to stop the timer and delete the fourth system information request.
  • the processing unit 320 is further configured to start the timer when the MAC layer generates the fifth system information request, where the fifth system information request is the first system generated by the terminal device after the timer stops. Information request.
  • processing unit 320 is specifically configured to:
  • the system information request generated by the terminal device at the MAC layer is a system information request generated based on the MSG1 in the random access procedure.
  • the duration of the timer is maintained at the MAC layer.
  • the communication unit 310 is specifically configured to:
  • terminal device 300 may correspond to the terminal device in the method 200, and the corresponding operations implemented by the terminal device in the method 200 may be implemented.
  • the terminal device 300 may correspond to the terminal device in the method 200, and the corresponding operations implemented by the terminal device in the method 200 may be implemented.
  • no further details are provided herein.
  • FIG. 7 is a schematic block diagram of a device 400 for wireless communication provided by an embodiment of the present application.
  • the device 400 includes:
  • the memory 410 is configured to store a program, where the program includes a code
  • the transceiver 420 is configured to communicate with other devices;
  • the processor 430 is configured to execute program code in the memory 410.
  • the transceiver 420 is configured to perform specific signal transceiving under the driving of the processor 430.
  • the processor 430 can implement various operations performed by the terminal device in the method 200 in FIG. 2, and details are not described herein for brevity.
  • the device 400 can be a terminal device, such as a mobile phone.
  • the processor 430 may be a central processing unit (CPU), and the processor 430 may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits. (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and more.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 410 can include read only memory and random access memory and provides instructions and data to the processor 430. A portion of the memory 410 may also include a non-volatile random access memory. For example, the memory 410 can also store information of the device type.
  • the transceiver 420 can be used to implement signal transmission and reception functions, such as frequency modulation and demodulation functions or upconversion and down conversion functions.
  • the device 400 for wireless communication can be a chip or chipset.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor 430 reads the information in the memory and completes the steps of the above method in combination with the hardware thereof. To avoid repetition, it will not be described in detail here.
  • FIG. 8 is a schematic structural diagram of a system chip 500 according to an embodiment of the present application.
  • the system chip 500 of FIG. 5 includes an input interface 501, an output interface 502, a processor 503, and a memory 504 that can be connected by an internal communication connection line for executing code in the memory 504.
  • the processor 503 when the code is executed, the processor 503 implements a method performed by the terminal device in the method embodiment. For the sake of brevity, it will not be repeated here.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be wired from a website site, computer, server or data center (for example, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.) to another website site, computer, server or data center.
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application.
  • the implementation process constitutes any limitation.

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

Abstract

Selon un mode de réalisation, la présente invention concerne un procédé de communication sans fil et un dispositif terminal. Le dispositif terminal peut faire appel à un temporisateur pour commander une transmission d'une demande d'informations de système (SI) au niveau d'une couche MAC, ce qui permet d'empêcher une planification fréquente de demandes de SI à base de MSG 1 au niveau de la couche MAC lors d'un processus d'accès aléatoire, et d'empêcher une congestion sur un canal d'accès aléatoire de liaison montante. Le procédé consiste à : recevoir, par un dispositif terminal, des informations de configuration transmises par un dispositif de réseau, les informations de configuration indiquant une durée d'un temporisateur ; et générer, par le dispositif terminal, une première demande d'informations de système au niveau d'une couche MAC, et activer le temporisateur tout en transmettant la première demande d'informations de système au dispositif de réseau.
PCT/CN2018/076573 2018-02-12 2018-02-12 Procédé de communication sans fil et dispositif terminal Ceased WO2019153361A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201880003145.3A CN109644463B (zh) 2018-02-12 2018-02-12 无线通信的方法和终端设备
PCT/CN2018/076573 WO2019153361A1 (fr) 2018-02-12 2018-02-12 Procédé de communication sans fil et dispositif terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/076573 WO2019153361A1 (fr) 2018-02-12 2018-02-12 Procédé de communication sans fil et dispositif terminal

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WO2019153361A1 true WO2019153361A1 (fr) 2019-08-15

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CN115175128B (zh) * 2019-07-25 2025-10-28 华为技术有限公司 一种通信方法、装置及存储介质

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WO2017028881A1 (fr) * 2015-08-14 2017-02-23 Telefonaktiebolaget Lm Ericsson (Publ) Distribution d'informations d'accès au système dans un système de communication sans fil
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CN107623936A (zh) * 2016-07-14 2018-01-23 夏普株式会社 系统信息的获取方法、基站和用户设备

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US10425926B2 (en) * 2016-05-10 2019-09-24 Lg Electronics Inc. Method and apparatus for requesting additional system information
CN107528678B (zh) * 2016-06-22 2021-10-29 大唐移动通信设备有限公司 一种系统消息更新的方法和设备
CN106375965B (zh) * 2016-09-24 2019-12-10 宇龙计算机通信科技(深圳)有限公司 一种广播系统信息的方法、装置及系统

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WO2017028881A1 (fr) * 2015-08-14 2017-02-23 Telefonaktiebolaget Lm Ericsson (Publ) Distribution d'informations d'accès au système dans un système de communication sans fil
CN107371208A (zh) * 2016-05-13 2017-11-21 中兴通讯股份有限公司 切换方法及装置
CN107623936A (zh) * 2016-07-14 2018-01-23 夏普株式会社 系统信息的获取方法、基站和用户设备

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