WO2019233472A1 - 由用户设备执行的方法以及用户设备 - Google Patents

由用户设备执行的方法以及用户设备 Download PDF

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Publication number
WO2019233472A1
WO2019233472A1 PCT/CN2019/090293 CN2019090293W WO2019233472A1 WO 2019233472 A1 WO2019233472 A1 WO 2019233472A1 CN 2019090293 W CN2019090293 W CN 2019090293W WO 2019233472 A1 WO2019233472 A1 WO 2019233472A1
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Prior art keywords
system information
request
user equipment
configuration
random access
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PCT/CN2019/090293
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English (en)
French (fr)
Inventor
常宁娟
肖芳英
刘仁茂
Original Assignee
夏普株式会社
常宁娟
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Application filed by 夏普株式会社, 常宁娟 filed Critical 夏普株式会社
Priority to US16/972,892 priority Critical patent/US11445528B2/en
Priority to KR1020217000091A priority patent/KR20210018418A/ko
Priority to EP19815312.4A priority patent/EP3806562B1/en
Priority to ES19815312T priority patent/ES2939498T3/es
Priority to BR112020024789-8A priority patent/BR112020024789A2/pt
Priority to PL19815312.4T priority patent/PL3806562T3/pl
Publication of WO2019233472A1 publication Critical patent/WO2019233472A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • H04W74/006Transmission of channel access control information in the downlink, i.e. towards the terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/14Access restriction or access information delivery, e.g. discovery data delivery using user query or user detection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/30Resource management for broadcast services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/535Allocation or scheduling criteria for wireless resources based on resource usage policies
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation

Definitions

  • the present invention relates to the field of wireless communication technologies, and more particularly, the present invention relates to a method performed by a user equipment and a corresponding user equipment.
  • NR New Radio
  • eMBB Enhanced Mobile Broadband Communications
  • URLLC Ultra-Reliable Low-Latency Communications
  • the standardization of NR will be carried out in two stages: the first stage of standardization will be completed in mid-2018; the second stage of standardization will be completed by the end of 2019.
  • the standard specifications of the first phase should be forward compatible with the standard specifications of the second phase, and the standard specifications of the second phase should be based on the standard specifications of the first phase and meet all the requirements of the 5G NR technical standards.
  • NR In addition to the long-term evolution (LTE) system, the network side actively sends cell system information to user equipment (User Equipment) through broadcast or dedicated signaling.
  • a new type of NR is also introduced in NR.
  • System information transmission method that is, on-demand system information transmission based on UE request.
  • the system information in the NR system is divided into two parts: minimum system information (minimum system information) and on-demand system information (on system information).
  • the minimum system information includes the basic information of the cell used for UE camping and initial access. It usually includes the master system information block (MasterInformationBlock, MIB) and system information block type 1 (SytemInformationBlockType1, SIB1).
  • SIB System Information Block
  • RRC Radio Resource Control
  • SI System Information
  • SI System Information
  • SI System Information
  • SI System Information
  • On-demand system information can be broadcast in the same manner as the minimum system information, or it can be transmitted based on the request of the UE.
  • the base station notifies the UE whether a SIB or SI is being broadcast or broadcasts by broadcasting a system information broadcast status indication message. Send on demand.
  • the content contained in each system information block is not detailed in the present invention. For details, please refer to 3GPP technical specification document 38.331.
  • the above-mentioned on-demand system information is supported to be sent based on a UE request.
  • the present invention proposes a solution for how to implement a system information sending method based on a UE request.
  • the present invention can provide a method performed by a user equipment and a user equipment, which can effectively perform radio resource configuration management during a system information request process based on a UE request.
  • a method performed by a user equipment including: initiating a system information acquisition process based on a user equipment request; and performing radio resource configuration management, wherein performing radio resource configuration management includes performing one of the following operations: One or more types: apply the default physical layer configuration, apply the default media access control, and apply the default semi-static scheduling configuration.
  • the process of initiating the system information acquisition based on the user equipment request includes: the user equipment requests system information or initiates the sending of a radio resource control system information request message.
  • a method performed by a user equipment including: ending a system information request process based on a user equipment request; and performing radio resource configuration management, where performing radio resource configuration management includes performing the following operations: One or more of the following: release the default physical layer configuration, release the default media access control configuration, release the default semi-static scheduling configuration, and perform reconstruction of the radio link control layer corresponding to the radio bearer.
  • the process of ending the system information request based on the user equipment request includes: receiving a confirmation of a system information request from the bottom layer, receiving a confirmation of a radio resource control system information request message from the bottom layer, receiving a random access of the bottom layer Failure indication or random access failure for system information request.
  • a method performed by a user equipment includes: during a system information request process based on a user equipment request, a cell reselection occurs; and radio resource configuration management is performed, wherein radio resource configuration management is performed It includes performing one or more of the following operations: releasing the default physical layer configuration, releasing the default media access control configuration, releasing the default semi-static scheduling configuration, performing radio link control layer reconstruction corresponding to the radio bearer, And reset the media access control.
  • the system information request process based on the user equipment request includes: before receiving the confirmation of the system information request from the bottom layer, before receiving the confirmation of the radio resource control system information request from the bottom layer, or before Before the random access procedure for system information request is completed.
  • a method performed by a user equipment including: during a system information request process based on a user equipment request, the user equipment interrupts the system information request process; and performing radio resource configuration management, wherein , Performing radio resource configuration management includes performing one or more of the following operations: releasing the default physical layer configuration, releasing the default media access control configuration, releasing the default semi-static scheduling configuration, and executing the wireless chain corresponding to the wireless bearer Reconstruction of the road control layer, and resetting the medium access control.
  • the system information request process based on the user equipment request includes: before receiving the confirmation of the system information request from the bottom layer, before receiving the confirmation of the radio resource control system information request from the bottom layer, or before Before the random access procedure for system information request is completed.
  • the user equipment interrupting the system information request process includes: the system information request process is interrupted / suspended / abandoned, or the system information request process is abandoned.
  • a user equipment including: a processor; and a memory storing instructions, wherein the instructions are executed when executed by the processor according to claims 1, 3, 5, and 7. The method of any one.
  • radio resource configuration management can be effectively performed in a system information request process based on a UE request.
  • FIG. 1 is a flowchart illustrating a method performed by a user equipment according to Embodiment 1 of the present invention.
  • FIG. 2 is a flowchart illustrating a method performed by a user equipment according to Embodiment 2 of the present invention.
  • FIG. 3 is a flowchart illustrating a method performed by a user equipment according to Embodiment 3 of the present invention.
  • FIG. 4 is a flowchart illustrating a method performed by a user equipment according to Embodiment 4 of the present invention.
  • FIG. 5 is a block diagram showing a user equipment UE according to an embodiment of the present invention.
  • Random Access Response The second message in the random access process. After receiving the random access preamble of the UE, the base station responds to the reception of the random access preamble by sending a random access response message.
  • the random access response message includes a time advance domain, an uplink permission domain, a UE identity domain, and the like.
  • the random access response is also called message 2.
  • Message 3 The third message in the random access process.
  • the message 3 refers to the uplink transmission sent by the UE on the uplink resource indicated by the uplink grant included in the RAR.
  • Message 4 In the random access process, the downlink message used to respond to message 3 is sent to the UE by the base station, and the UE performs random access competition analysis based on the message to determine whether the random access is successful.
  • the UE uses the corresponding PRACH resource to send a preamble to inform the base station which SI (or SIB) it wants to obtain. After receiving the message 1, the base station returns a RAR to Respond to the request of the UE, and broadcast the SI (or SIB) requested by the UE in a subsequent period.
  • the above-mentioned dedicated PRACH configuration / resource is not configured.
  • the PRACH configuration / resource used by the UE is the same as the PRACH configuration / resource used for initial access or other purposes.
  • the UE When the UE wants to obtain When one or more SIs (or SIBs), the UE initiates a random access procedure and includes a list of SIs (or SIBs) it wants to acquire in message 3 to inform the base station which SIs (or SIBs) it wants to acquire, the message 3 contains an RRC message for system information request (such as RRC system information request message, RRCsystemInforequest message). After receiving the message 3, the base station returns message 4 for responding to the request of message 3 and for contention resolution of the random access process.
  • SIs system information request
  • RRCsystemInforequest message RRC system information request message
  • the UE uses a method based on message 1.
  • the UE triggers the underlying layer to use the corresponding PRACH resource to initiate a random access process. If it receives an acknowledgement of the system information request from the underlying layer, the UE starts to To obtain the SIB / SI. Otherwise, if the SIB1 does not contain the PRACH resource of the SIB / SI that the UE wants to obtain, the UE uses the message-based method to send the RRC system information request message. If it receives the RRC system information request message from the bottom layer, Confirmation, the UE starts to obtain the SIB / SI according to the scheduling information of the SIB / SI.
  • the UE needs to send according to a certain radio resource configuration such as the configuration of the protocol layer when sending and receiving.
  • a certain radio resource configuration such as the configuration of the protocol layer when sending and receiving.
  • FIG. 1 is a flowchart illustrating a method performed by a user equipment according to Embodiment 1 of the present invention.
  • This embodiment 1 provides a radio resource configuration management method when initiating a system information acquisition process based on a UE request.
  • the UE When the system information acquisition process based on the UE request is initiated, in step 103, the UE performs radio resource configuration management, that is, the UE performs one or more of the following operations:
  • the default physical layer configuration refers to the system's predefined RRC configuration for the physical protocol layer.
  • the configuration may include physical downlink shared channel configuration, physical uplink control channel configuration, physical uplink shared channel configuration, uplink power control configuration, channel status indication or channel quality indication configuration, uplink sounding reference signal configuration, antenna information configuration service request configuration, etc. One or more.
  • Operation 2 Apply the default Medium Access Control (MAC) main configuration; it may also be referred to as MAC configuration for short.
  • the default MAC master configuration refers to the system's predefined RRC configuration for the MAC protocol layer. Preferably, it may include one or more of a maximum number of HARQ transmissions, a buffer status report configuration, a discontinuous transmission configuration, a power headroom report configuration, and the like.
  • the semi-static scheduling configuration may also be called a configured grant, which may include a configuration grant provided through RRC signaling and a physical downlink control channel (Physical Downlink Control CHAnnel, PDCCH) signaling (or downlink control information ( Downlink Control Information (DCI) signaling).
  • a configuration grant provided through RRC signaling and a physical downlink control channel (Physical Downlink Control CHAnnel, PDCCH) signaling (or downlink control information ( Downlink Control Information (DCI) signaling).
  • PDCCH Physical Downlink Control CHAnnel
  • DCI Downlink Control Information
  • the default configuration mentioned above refers to a predefined default configuration. These default configurations can use the same configuration parameters as those used during initial access, or they can be default configurations set specifically for system information requests. The present invention is not limited to the specific values in the default configuration.
  • FIG. 2 is a flowchart illustrating a method performed by a user equipment according to Embodiment 2 of the present invention.
  • This Embodiment 2 provides a radio resource configuration management method when ending a system information request process based on a UE request.
  • step 201 a system information request process based on a UE request is ended.
  • the UE When the UE ends the request process of system information, in step 203, the UE performs radio resource configuration management, that is, the UE performs one or more of the following operations:
  • Action 1 Release the default physical layer configuration.
  • Action 2 Release the default MAC configuration.
  • Action 3 Release the default semi-static scheduling configuration.
  • the default physical layer configuration, the default MAC master configuration, and the default semi-static scheduling configuration in the above operations are the same as those in the embodiment, and details are not described herein.
  • FIG. 3 is a flowchart illustrating a method performed by a user equipment according to Embodiment 3 of the present invention.
  • This embodiment provides a radio resource configuration management method when a cell reselection occurs during a system information request process based on a UE request.
  • a cell reselection occurs during a system information request process based on a UE request.
  • the UE performs radio resource configuration management in step 303, that is, the UE performs one or more of the following operations:
  • Action 1 Release the default physical layer configuration.
  • Action 2 Release the default MAC configuration.
  • Action 3 Release the default semi-static scheduling configuration.
  • Operation 4 Perform reconstruction of a Radio Link Control (RLC) layer corresponding to the radio bearer.
  • the radio bearer refers to Signaling Radio Bearer 0; alternatively, the radio bearer refers to an established radio bearer, which includes an SRB and a data radio bearer (DRB).
  • RLC Radio Link Control
  • the radio bearer refers to an established radio bearer, which includes an SRB and a data radio bearer (DRB).
  • DRB data radio bearer
  • Operation 5 Reset the MAC.
  • 3GPP Technical Specification Document 38.321 For details on resetting the MAC, see 3GPP Technical Specification Document 38.321, which is not described here.
  • the default physical layer configuration, the default MAC master configuration, and the default semi-static scheduling configuration in the above operations are the same as those in the embodiment, and details are not described herein.
  • “in the process of requesting a system information based on a UE request” may also be described as “before receiving a confirmation of a system information request from the bottom layer” or “before receiving a request for an RRC system information from the bottom layer” "Before confirmation of” or before the completion of the random access procedure for system information request ".
  • the completion of the random access process may refer to the successful completion of the random access process or the unsuccessful completion of the random access process.
  • FIG. 4 is a flowchart illustrating a method performed by a user equipment according to Embodiment 4 of the present invention.
  • This embodiment 4 provides a radio resource configuration management method when a UE interrupts the system information request process during a system information request process based on a UE request.
  • step 401 during a system information request process based on a UE request, the UE interrupts the system information request process;
  • the UE performs radio resource configuration management in step 403, that is, the UE performs one or more of the following operations:

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

本发明提供了一种由用户设备执行的方法,包括:发起基于用户设备请求的***信息获取过程;以及执行无线资源配置管理,其中,执行无线资源配置管理包括执行下述操作中的一种或多种:应用默认的物理层配置、应用默认的媒介接入控制、以及应用默认的半静态调度配置。

Description

由用户设备执行的方法以及用户设备 技术领域
本发明涉及无线通信技术领域,更具体地,本发明涉及由用户设备执行的方法以及相应的用户设备。
背景技术
2016年3月,在第三代合作伙伴计划(3rd Generation Partnership Project:3GPP)RAN#75次全会上,NTT DOCOMO提出了一个关于5G技术标准的新的研究项目(参见非专利文献:RP-170847:New WID on New Radio Access Technology),并获批准。该研究项目的目的是开发一个新的无线(New Radio:NR)接入技术以满足5G的所有应用场景、需求和部署环境。该研究项目中,NR主要包括两个应用场景:增强的移动宽带通信(Enhanced Mobile Broadband:eMBB)和超可靠低延迟通信(Ultra Reliable and Low Latency Communications:URLLC)。按照该研究项目的规划,NR的标准化分二个阶段进行:第一阶段的标准化工作将于2018年中期完成;第二阶段的标准化工作将于2019年底完成。第一阶段的标准规范要前向兼容于第二阶段的标准规范,而第二阶段的标准规范要建立在第一阶段的标准规范之上,并满足5G NR技术标准的所有要求。
除了沿用长期演进(Long Term Evolution,LTE)***中的网络侧主动通过广播或专用信令的方式向用户设备(User Equipment,UE)下发小区***信息的方式,NR中还引入了一种新的***信息发送方式,即基于UE请求的(on demand)***信息发送。NR***中的***信息分为两部分:最小***信息(minimum system information)和按需***信息(on demand system information)。其中最小***信息包括该小区用于UE驻留和初始接入的基本信息,通常包含主***信息块(MasterInformationBlock,MIB)和***信息块类型1 (SytemInformationBlockType1,SIB1),按需***信息指的是最小***信息之外的其他***信息块(System Information Block,SIB)比如***信息块类型3等。具有相同发送周期的多个SIB可以合成一个无线资源控制(Radio Resource Control,RRC)消息来发送,称为一个***信息(System Information,SI)消息。按需***信息可以使用如最小***信息一样的周期广播的形式,也可以使用基于UE请求再进行发送的方式,基站通过广播一个***信息广播状态指示信息来告知UE一个SIB或SI是正在广播还是按需发送(on demand)。本发明中不详述各***信息块所包含的内容,具体请参见3GPP技术规范文档38.331。NR***中支持对上述按需***信息采用基于UE请求的发送方式。本发明针对如何实现基于UE请求的***信息发送方式提出解决方法。
发明内容
为了解决现有技术的上述问题中的至少一些,提出了本发明。本发明可以提供一种由用户设备执行的方法以及用户设备,能够在基于UE请求的***信息请求过程中有效执行无线资源配置管理。
根据本发明,提出了一种由用户设备执行的方法,包括:发起基于用户设备请求的***信息获取过程;以及执行无线资源配置管理,其中,执行无线资源配置管理包括执行下述操作中的一种或多种:应用默认的物理层配置、应用默认的媒介接入控制、以及应用默认的半静态调度配置。
优选地,所述发起基于用户设备请求的***信息获取过程包括:用户设备请求***信息、或发起无线资源控制***信息请求消息的发送。
另外,根据本发明,提出了一种由用户设备执行的方法,包括:结束基于用户设备请求的***信息请求过程;以及执行无线资源配置管理,其中,执行无线资源配置管理包括执行下述操作中的一种或多种:释放默认的物理层配置、释放默认的媒介接入控制配置、释放默 认的半静态调度配置、以及执行无线承载对应的无线链路控制层的重建。
优选地,所述结束基于用户设备请求的***信息请求过程包括:收到来自底层的***信息请求确认、收到来自底层的对无线资源控制***信息请求消息的确认、收到底层的随机接入失败指示、或用于***信息请求的随机接入失败。
此外,根据本发明,提出了一种由用户设备执行的方法,包括:在基于用户设备请求的***信息请求过程中,发生小区重选;以及执行无线资源配置管理,其中,执行无线资源配置管理包括执行下述操作中的一种或多种:释放默认的物理层配置、释放默认的媒介接入控制配置、释放默认的半静态调度配置、执行无线承载对应的无线链路控制层的重建、以及重置媒介接入控制。
优选地,所述在基于用户设备请求的***信息请求过程中包括:在收到来自底层的***信息请求的确认之前、在收到来自底层的对无线资源控制***信息请求的确认之前、或在用于***信息请求的随机接入过程完成前。
另外,根据本发明,提出了一种由用户设备执行的方法,包括:在基于用户设备请求的***信息请求过程中,发生用户设备中断所述***信息请求过程;以及执行无线资源配置管理,其中,执行无线资源配置管理包括执行下述操作中的一种或多种:释放默认的物理层配置、释放默认的媒介接入控制配置、释放默认的半静态调度配置、执行无线承载对应的无线链路控制层的重建、以及重置媒介接入控制。
优选地,所述在基于用户设备请求的***信息请求过程中包括:在收到来自底层的***信息请求的确认之前、在收到来自底层的对无线资源控制***信息请求的确认之前、或在用于***信息请求的随机接入过程完成前。
优选地,所述用户设备中断所述***信息请求过程包括:所述***信息请求过程被中断/中止/放弃、或所述***信息请求过程被放弃。
此外,根据本发明,提出了一种用户设备,包括:处理器;以及 存储器,存储有指令,其中,所述指令在由所述处理器运行时执行根据权利要求1、3、5和7中任一项所述的方法。
根据本发明,能够在基于UE请求的***信息请求过程中有效执行无线资源配置管理。
附图说明
通过下文结合附图的详细描述,本发明的上述和其它特征将会变得更加明显,其中:
图1是示出了根据本发明的实施例1的由用户设备执行的方法的流程图。
图2是示出了根据本发明的实施例2的由用户设备执行的方法的流程图。
图3是示出了根据本发明的实施例3的由用户设备执行的方法的流程图。
图4是示出了根据本发明的实施例4的由用户设备执行的方法的流程图。
图5是表示本发明的一个实施例所涉及的用户设备UE的框图。
具体实施方式
下面结合附图和具体实施方式对本发明进行详细阐述。
在本发明中,术语“包括”和“含有”及其派生词意为包括而非限制;术语“或”是包含性的,意为和/或。
在本说明书中,下述用于描述本发明原理的各种实施例只是说明,不应该以任何方式解释为限制公开的范围。参照附图的下述描述用于帮助全面理解由权利要求及其等同物限定的本发明的示例性实施例。下述描述包括多种具体细节来帮助理解,但这些细节应认为仅仅是示例性的。因此,本领域普通技术人员应认识到,在不背离本发明的范围和精神的情况下,可以对本文中描述的实施例进行多种改变和修改。此外,为了清楚和简洁起见,省略了公知功能和结构的描述。此外, 贯穿附图,相同参考数字用于相似功能和操作。
下文以NR移动通信***及其后续的演进版本作为示例应用环境,具体描述了根据本发明的多个实施方式。然而,需要指出的是,本发明不限于以下实施方式,而是可适用于更多其它的无线通信***。若无特殊说明,在本发明中,小区和基站的概念可以互相替换。按需(请求)的***信息和基于UE请求的***信息表达同一个意图。
本发明涉及到的一些概念说明如下。值得注意的是,在下文的描述中的一些命名仅是实例说明性的,而不是限制性的,也可以作其他命名。
消息1:随机接入过程中的第一条消息,即UE发送的随机接入前导(preamble)。UE通过***信息来获取发送消息1所需的配置(如功率参数、发送次数等)和资源(如时频域资源),因为preamble是在物理随机接入信道(Physical Random Access CHannel)上发送的,所以消息1有时也称PRACH,消息1的配置和资源也称PRACH配置和PRACH资源,本发明中,PRACH资源也包含PRACH preamble。
随机接入响应(Random Access Response,RAR):随机接入过程中的第二条消息。基站会在接收到UE的随机接入前导之后,通过发送随机接入响应消息来对该随机接入前导的接收进行响应。随机接入响应消息中包括时间提前域、上行许可域、UE标识域等。随机接入响应也称消息2。
消息3:随机接入过程中的第三条消息。在本发明中,消息3统指UE在RAR中包含的上行许可所指示的上行资源上所发送的上行传输。
消息4:随机接入过程中,用于响应消息3的下行消息,由基站发送给UE,UE基于该消息进行随机接入竞争解析,确定本次随机接入是否成功。
在目前3GPP通过的技术规范文档38.331中,基于UE请求的***信息发送通过使用随机接入过程来向基站请求UE所需要的***信息块,因此有基于消息1的请求方式和基于消息3的请求方式。在基于消息1的请求方式中,基站通过广播(如SIB1)告知UE发送消息 1的PRACH配置/资源,即用于***信息请求所使用的PRACH配置/资源是独立于用于初始接入或其他目的PRACH配置/资源而单独配置的。比如每个SI(或SIB)对应一个专用PRACH资源,UE通过使用对应的PRACH资源上发送preamble来告知基站它想要获取哪些SI(或SIB),基站收到消息1后,会返回一个RAR来响应UE的请求,并在随后的一个时间段内广播UE所请求的SI(或SIB)。在基于消息3的请求方式中,并没有配置上述专用的PRACH配置/资源,UE所使用的PRACH配置/资源和用于初始接入或其他目的PRACH配置/资源是一样的,当UE想要获取一个或多个SI(或SIB)时,UE发起随机接入过程,并在消息3中包含它想要获取的SI(或SIB)列表来告知基站他想要获取哪些SI(或SIB),消息3中包含一个用于***信息请求的RRC消息(如称RRC***信息请求消息,RRCsystemInforequest消息)。基站收到消息3后,会返回消息4用于响应消息3的请求以及用于该随机接入过程的竞争解决。
对于基于UE请求的SIB/SI(即其对应的***信息广播状态设置为on demand),当UE想要获取一个或多个SIB/SI,若SIB1中包含了UE想要获取的SIB/SI的PRACH资源,则UE使用基于消息1的方式,UE触发底层使用所对应的PRACH资源来发起随机接入过程,若收到来自底层的所述***信息请求的确认,UE开始根据所述SIB/SI的调度信息去获取所述SIB/SI。否则,若SIB1中没有包含UE想要获取的SIB/SI的PRACH资源,则UE使用基于消息3的方式,UE发起RRC***信息请求消息的发送,若收到来自底层的对RRC***信息请求消息的确认,UE开始根据所述SIB/SI的调度信息去获取所述SIB/SI。
无论是对于基于消息1还是消息3的***信息获取方式,UE在发送和接收时都需要按照一定的无线资源配置如协议层的配置来发送,基于上述理解,如何设置基于UE请求的***信息的过程中的无线资源配置以及在不同情况如小区重选时如何管理所述无线资源配置,成为本发明所要解决的问题。
实施例1
图1是示出了根据本发明的实施例1的由用户设备执行的方法的流程图。
本实施例1提供一种在发起基于UE请求的***信息获取过程时的无线资源配置管理方式。
如图1所示,在步骤101,发起基于UE请求的***信息获取过程;
当发起基于UE请求的***信息获取过程时,在步骤103,UE执行无线资源配置管理,即,UE执行下述操作中的一种或多种:
操作1:应用默认的物理层配置。默认的物理层配置指的是***预定义的用于物理协议层的RRC配置。优选地,可包括物理下行共享信道配置、物理上行控制信道配置、物理上行共享信道配置、上行功率控制配置、信道状态指示或信道质量指示配置、上行探测参考信号配置、天线信息配置服务请求配置中的一种或多种。
操作2:应用默认的媒介接入控制(Medium Access Control,MAC)主配置(main configuration);也可简称MAC配置。默认的MAC主配置指的是***预定义的用于MAC协议层的RRC配置。优选地,可包括最大HARQ发送次数、缓存状态报告配置、非连续性传输配置、功率余量上报配置等中的一种或多种。
操作3:应用默认的半静态调度配置。其中半静态调度配置也可称配置的许可(configured grant),可包含通过RRC信令提供的配置的许可和通过物理下行控制信道(Physical Downlink Control CHannel,PDCCH)信令(或称下行控制信息(Downlink Control Information,DCI)信令)提供的许可。
以上所述默认的配置指的是预定义的默认配置(default configuration)。这些默认配置可以采用和初始接入时所使用的相同的配置参数,也可以是专用于***信息请求而设定的默认配置。本发明并不限定所述默认配置中的具体的值。
本实施例1中,“当发起基于UE请求的***信息获取过程时”也 可描述为“当UE请求***信息时”。当采用基于消息3的***信息获取方式时也可描述为“当发起RRC***信息请求消息的发送时”。
实施例2
图2是示出了根据本发明的实施例2的由用户设备执行的方法的流程图。
本实施例2提供了一种在结束基于UE请求的***信息请求过程时的无线资源配置管理方式。
如图2所示,在步骤201,结束基于UE请求的***信息请求过程。
当UE结束***信息的请求过程时,在步骤203,UE执行无线资源配置管理,即,UE执行下述操作中的一种或多种:
操作1:释放默认的物理层配置。
操作2:释放默认的MAC配置。
操作3:释放默认的半静态调度配置。
操作4:执行无线承载对应的无线链路控制(Radio Link Control,RLC)层的重建。优选地,所述无线承载指信令无线承载0(Signaling Radio Bearer 0);备选地,所述无线承载指所有的无线承载,包含SRB和数据无线承载(Data Radio Bearer,DRB)。
上述操作中的默认的物理层配置、默认的MAC主配置、默认的半静态调度配置与实施例中一样,此处不赘述。
本实施例2中,“当UE结束***信息的请求过程时”可以指***信息请求过程成功结束,也可以指***信息请求过程失败结束。因此,“当UE结束***信息的请求过程时”也可描述为“当收到来自底层的***信息请求确认时”或“当收到来自底层的对RRC***信息请求消息的确认时”或“当收到底层的随机接入失败指示时”或“当用于***信息请求的随机接入失败时”。
实施例3
图3是示出了根据本发明的实施例3的由用户设备执行的方法的流 程图。
本实施例提供了一种在基于UE请求的***信息请求过程中发生小区重选时的无线资源配置管理方式。
如图3所示,在步骤301,在基于UE请求的***信息请求过程中发生小区重选。
在基于UE请求的***信息请求的过程中,当发生小区重选时,在步骤303,UE执行无线资源配置管理,即,UE执行下述操作的一种或多种:
操作1:释放默认的物理层配置。
操作2:释放默认的MAC配置。
操作3:释放默认的半静态调度配置。
操作4:执行无线承载对应的无线链路控制(Radio Link Control,RLC)层的重建。优选地,所述无线承载指信令无线承载0(Signaling Radio Bearer 0);备选地,所述无线承载指已建立的无线承载,包含SRB和数据无线承载(Data Radio Bearer,DRB)。
操作5:重置MAC。重置MAC的具体操作请参见3GPP技术规范文档38.321,此处不赘述。
上述操作中的默认的物理层配置、默认的MAC主配置、默认的半静态调度配置与实施例中一样,此处不赘述。
本实施例3中,“在基于UE请求的***信息请求的过程中”还可以描述为“在收到来自底层的***信息请求的确认之前”或“在收到来自底层的对RRC***信息请求的确认之前”或“在用于***信息请求的随机接入过程完成前”。所述随机接入过程完成可以指随机接入过程成功完成也可以指随机接入过程不成功完成。
实施例4
图4是示出了根据本发明的实施例4的由用户设备执行的方法的流程图。
本实施例4提供了一种在基于UE请求的***信息请求过程中发生 UE中断所述***信息请求过程时的无线资源配置管理方式。
如图4所示,在步骤401,在基于UE请求的***信息请求的过程中,UE中断所述***信息请求过程;
在基于UE请求的***信息请求的过程中,当UE中断所述***信息请求过程时,在步骤403,UE执行无线资源配置管理,即,UE执行下述操作的一种或多种:
操作1:释放默认的物理层配置。
操作2:释放默认的MAC配置。
操作3:释放默认的半静态调度配置。
操作4:执行无线承载对应的无线链路控制(Radio Link Control,RLC)层的重建。优选地,所述无线承载指信令无线承载0(Signaling Radio Bearer 0);备选地,所述无线承载指已建立的无线承载,包含SRB和数据无线承载(Data Radio Bearer,DRB)。
操作5:重置MAC。重置MAC的具体操作请参见3GPP技术规范文档38.321,此处不赘述。
上述操作中的默认的物理层配置、默认的MAC主配置、默认的半静态调度配置与实施例中一样,此处不赘述。
本实施例4中,“在基于UE请求的***信息请求的过程中”还可以描述为“在收到来自底层的***信息请求的确认之前”或“在收到来自底层的对RRC***信息请求的确认之前”或“在用于***信息请求的随机接入过程完成前”。所述随机接入过程完成可以指随机接入过程成功完成也可以指随机接入过程不成功完成。
本实施例4中,UE中断***信息请求过程可以发生在,例如UE上层结束一个应用时或对一个应用不感兴趣时,则UE会停止对所对应的***信息的请求。“当UE中断所述***信息请求过程时”也可描述为“当所述***信息请求过程被中断/中止/放弃时”或“当所述***信息请求过程被放弃时”。
实施例5
本实施例给出了一种在基于消息1的***信息请求过程中的随机接入资源确定方法。所述随机接入资源指的是用于***信息请求的发送preamble的PRACH资源或称RACH资源。下述SI也可用SIB来替换。
步骤1:UE通过SIB1接收多个SI的调度信息列表(schedulinginfoList)和用于***信息请求的随机接入资源列表。所述调度信息中包含所述SI当前的***信息广播状态指示信息,如是正在广播的还是基于请求的。
步骤2:若所述用于***信息请求的随机接入资源列表中仅包含一个(或称一项)随机接入资源,则UE认为该随机接入资源的配置适用于所有当前***信息广播状态指示信息设置为基于请求的SI。否则,若所述用于***信息请求的随机接入资源列表中包含多个(或称多项)随机接入资源,则优选地,该随机接入资源列表中包含的项的数目(number)和排列次序(order)和所述调度信息列表中的项的数目和排列次序是相同的,即随机接入资源列表中的第一项对应于调度信息列表中的第一项,随机接入资源列表中的第二项对应于调度信息列表中的第二项,以此类推。备选地,该随机接入资源列表中包含的项的数目和排列次序和所述调度信息列表中其***信息广播状态指示信息设置为基于请求的多个项的数目和排列次序是相同的;即随机接入资源列表中的第一项对应于调度信息列表中其***信息广播状态指示信息设置为基于请求的第一个项,随机接入资源列表中的第二项对应于调度信息列表中其***信息广播状态指示信息设置为基于请求的第二个项,以此类推。
在本申请中,“基站”是指具有较大发射功率和较广覆盖面积的移动通信数据和控制交换中心,包括资源分配调度、数据接收发送等功能。“用户设备”是指用户用户设备,例如包括移动电话、笔记本等可以与基站或者微基站进行无线通信的终端设备。
上文已经结合优选实施例对本发明的方法和涉及的设备进行了描述。本领域技术人员可以理解,上面示出的方法仅是示例性的。本发明的方法并不局限于上面示出的步骤和顺序。上面示出的基站和用户设备可以包括更多的模块,例如还可以包括可以开发的或者将来开发 的可用于基站、MME、或UE的模块等等。上文中示出的各种标识仅是示例性的而不是限制性的,本发明并不局限于作为这些标识的示例的具体信元。本领域技术人员根据所示实施例的教导可以进行许多变化和修改。
图5是表示本发明的一个实施例所涉及的用户设备UE的框图。如图5所示,该用户设备UE50包括处理器501和存储器502。处理器501例如可以包括微处理器、微控制器、嵌入式处理器等。存储器502例如可以包括易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器等。存储器502上存储有程序指令。该指令在由处理器501运行时,可以执行本公开详细描述的由用户设备执行的上述方法。
运行在根据本发明的设备上的程序可以是通过控制中央处理单元(CPU)来使计算机实现本发明的实施例功能的程序。该程序或由该程序处理的信息可以临时存储在易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器***中。
用于实现本发明各实施例功能的程序可以记录在计算机可读记录介质上。可以通过使计算机***读取记录在所述记录介质上的程序并执行这些程序来实现相应的功能。此处的所谓“计算机***”可以是嵌入在该设备中的计算机***,可以包括操作***或硬件(如***设备)。“计算机可读记录介质”可以是半导体记录介质、光学记录介质、磁性记录介质、短时动态存储程序的记录介质、或计算机可读的任何其他记录介质。
用在上述实施例中的设备的各种特征或功能模块可以通过电路(例如,单片或多片集成电路)来实现或执行。设计用于执行本说明书所描述的功能的电路可以包括通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、或其他可编程逻辑器件、分立的门或晶体管逻辑、分立的硬件组件、或上述器件的任意组合。通用处理器可以是微处理器,也可以是任何现有的处理器、控制器、微控制器、或状态机。上述电路可以是数字电路,也可以是模拟电路。因半 导体技术的进步而出现了替代现有集成电路的新的集成电路技术的情况下,本发明的一个或多个实施例也可以使用这些新的集成电路技术来实现。
此外,本发明并不局限于上述实施例。尽管已经描述了所述实施例的各种示例,但本发明并不局限于此。安装在室内或室外的固定或非移动电子设备可以用作终端设备或通信设备,如AV设备、厨房设备、清洁设备、空调、办公设备、自动贩售机、以及其他家用电器等。
如上,已经参考附图对本发明的实施例进行了详细描述。但是,具体的结构并不局限于上述实施例,本发明也包括不偏离本发明主旨的任何设计改动。另外,可以在权利要求的范围内对本发明进行多种改动,通过适当地组合不同实施例所公开的技术手段所得到的实施例也包含在本发明的技术范围内。此外,上述实施例中所描述的具有相同效果的组件可以相互替代。

Claims (2)

  1. 一种由用户设备UE执行的方法,包括:
    通过***信息块1即SIB1接收针对多个***信息SI消息的SI调度信息列表和针对***信息请求的随机接入资源列表,其中在所述SI调度信息列表的每一项中包括SI广播状态指示,以指示SI消息是正在广播的还是基于请求的;
    如果在针对***信息请求的所述随机接入资源列表中存在多于一项的随机接入资源,则认为针对***信息请求的所述随机接入资源列表中的第一项对应于所述SI调度信息列表中其SI广播状态指示设置为基于请求的第一个项,针对***信息请求的所述随机接入资源列表中的的第二项对应于所述SI调度信息列表中其SI广播状态指示设置为基于请求的第二个项。
  2. 一种用户设备,包括:
    处理器;以及
    存储器,存储有指令,
    其中,所述指令在由所述处理器运行时执行根据权利要求1所述的方法。
PCT/CN2019/090293 2018-06-07 2019-06-06 由用户设备执行的方法以及用户设备 WO2019233472A1 (zh)

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EP19815312.4A EP3806562B1 (en) 2018-06-07 2019-06-06 Method of system information transmissions and user equipment
ES19815312T ES2939498T3 (es) 2018-06-07 2019-06-06 Método de transmisiones de información de sistema y equipo de usuario
BR112020024789-8A BR112020024789A2 (pt) 2018-06-07 2019-06-06 método implementado por equipamento de usuário e equipamento de usuário
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EP3806562B1 (en) 2023-01-25
EP3806562A4 (en) 2022-03-16
US20210258986A1 (en) 2021-08-19
ES2939498T3 (es) 2023-04-24
KR20210018418A (ko) 2021-02-17
EP3806562A1 (en) 2021-04-14
PL3806562T3 (pl) 2023-05-15

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