WO2013020506A1 - Procédé et dispositif de prise en charge d'un temporisateur de synchronisation dans un système de communications multi-porteuses - Google Patents

Procédé et dispositif de prise en charge d'un temporisateur de synchronisation dans un système de communications multi-porteuses Download PDF

Info

Publication number
WO2013020506A1
WO2013020506A1 PCT/CN2012/079819 CN2012079819W WO2013020506A1 WO 2013020506 A1 WO2013020506 A1 WO 2013020506A1 CN 2012079819 W CN2012079819 W CN 2012079819W WO 2013020506 A1 WO2013020506 A1 WO 2013020506A1
Authority
WO
WIPO (PCT)
Prior art keywords
tat
packet
secondary cell
cell
packet including
Prior art date
Application number
PCT/CN2012/079819
Other languages
English (en)
Chinese (zh)
Inventor
万璐
陈中明
黄亚达
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 WO2013020506A1 publication Critical patent/WO2013020506A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements

Definitions

  • the carrier that participates in the aggregation is called a component carrier, and the user equipment (User Equipment, UE for short) can transmit and receive with the eNB on multiple component carriers at the same time.
  • the component carrier can use the frequency band already defined by LTE, or it can also use the frequency band specially added for LTE-Advanced. Based on the current situation of tight spectrum resources, it is impossible to always allocate a continuous component carrier in the frequency domain to the operator, so the component carrier may be continuous or discontinuous in the frequency band.
  • the concept of a primary cell and a secondary cell is introduced in the carrier aggregation.
  • the primary cell refers to a cell in which the UE initiates an RRC connection establishment or an RRC connection reestablishment or is designated as a primary cell in the handover process; the secondary cell refers to a frequency point different from the primary cell, and Configured after the UE enters the RRC connected state, it is used to provide additional radio resources.
  • a serving cell includes a primary serving cell and a secondary serving cell. After the carrier aggregation technology is introduced, the UE can transmit and receive on multiple serving cells simultaneously in the RRC connection state (RRC_CO NECTED), but for the idle state (RRC_IDLE) UE, like the LTE-like, can only reside on one cell.
  • the base station may allocate a new cell to the UE through dedicated RRC signaling according to the service requirement, and after allocating the new cell, the base station and the UE
  • the data is not immediately transmitted and received on the newly added cell, that is, the base station does not send service data to the UE on the newly added cell, and the UE saves the configuration information on the cell, and does not send the base station to the base station.
  • the subsequent base station can activate the cell according to the service requirement, and after the cell is activated, the base station and the UE can perform data transmission and reception on the cell.
  • the present invention provides a method and apparatus for processing a time alignment timer in a multi-carrier communication system to at least solve the above problems.
  • An aspect of the present invention provides a method for processing a time alignment timer in a multi-carrier communication system, including: in a case where a plurality of packets exist, the UE maintains a duration of a respective TAT for each packet, where the same is used.
  • the TAT of the packet including only the secondary cell is continuously maintained.
  • the activated secondary cell is still in a synchronized state, the activated The secondary cell does not need to perform an uplink synchronization process.
  • the UE adopts a method of continuing to send the SRS on the deactivated predetermined secondary cell.
  • the predetermined secondary cell includes one of the following: a secondary cell configured with a duration of the TAT, and any one of the secondary cells.
  • the method further includes: after receiving, by the UE, the TA adjustment value of the packet where the secondary cell is sent by the primary cell by the primary cell Restarting the TAT of the packet, where the time adjustment required for the secondary cell is determined by the base station by detecting the SRS.
  • a processing apparatus for a time alignment timer in a multi-carrier communication system includes: a time alignment timer TAT duration maintenance module, configured to be configured for each packet in the case where a plurality of packets exist Maintaining the duration of the respective TATs, wherein the cells belonging to the same group satisfy at least one of the following conditions: use the same timing advance TA, use the same time reference; the uplink synchronization state maintenance module, set to correspond to the TAT according to each group Whether to time out, maintain the uplink synchronization status in the packet.
  • the configuration or reconfiguration that is, when the base station performs the addition, deletion, and reconfiguration of a certain cell in the packet, the TAT duration maintained by the UE may be reconfigured according to the latest component cell status in the packet.
  • the UE no longer maintains the TAT of the packet.
  • the following describes the maintenance of the TAT of the packet including only the secondary cell and the TAT maintenance procedure of the packet including the primary cell, respectively.
  • Startup or restart processing When the UE receives the TA value in the packet, it starts or restarts the TAT in the group. The TAT is started or restarted whenever the cell in the group receives the TA Control Element.
  • TAT timeout processing of a packet including only the secondary cell and the TAT timeout processing of the packet including the primary cell will be described below.
  • TAT timeout processing of the packet including only the secondary cell may be performed by any of the following timeout processing methods:
  • a packet including a primary cell For a packet including a primary cell (1) When a TAT in a group including a primary cell fails but a TAT in a group including only a secondary cell does not time out, it is considered that the TAT in the group including only the secondary cell times out, and the above may be followed.
  • the TAT timeout processing mode of the packet including only the secondary cell is processed, for example, the TAT in the group of the secondary cell is stopped.
  • the UE considers that all secondary cells in the group of the secondary cell are in a deactivated state at this time. Clearing the HARQ memory of all the secondary cells in the active cell in the group of the secondary cell; the UE notifying the upper layer, such as the RRC, to release the SRS resources configured in all the cells in the group of the secondary cell.
  • the apparatus includes: a TAT duration maintenance module 22, configured to, for each packet, in the presence of multiple packets Maintaining the duration of the respective TATs, wherein the cells using the same TA belong to the same group; the uplink synchronization state maintenance module 24 is configured to maintain the uplink synchronization state of the cells in the packet according to whether the TAT corresponding to each packet times out.
  • the above TAT duration maintenance module 22 and uplink synchronization state maintenance module 24 may be located at the base station side or UE.

Landscapes

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

Abstract

La présente invention concerne un procédé et un dispositif de prise en charge d'un temporisateur de synchronisation (TAT) dans un système de communications multi-porteuses. Le procédé comporte les étapes suivantes : dans l'hypothèse où il existe des groupes multiples, un UE maintient des intervalles de temps de TAT respectifs pour chaque groupe, des cellules utilisant la même TA appartenant à un même groupe ; et l'UE maintient un état de synchronisation en liaison montante pour les cellules du groupe selon que le TAT correspondant à chaque groupe a expiré. La présente invention résout le problème de la technique antérieure, où le TAT n'est maintenu que pour une cellule primaire, entraînant ainsi l'impossibilité pour l'UE de connaître directement l'état de synchronisation en liaison montante d'un groupe de cellules auxiliaires, et l'impossibilité pour un côté station de base de recevoir normalement des signaux en liaison montante de ces cellules, car l'UE pourrait effectuer une émission en liaison montante alors que le groupe de cellules auxiliaires est dans un état désynchronisé. La solution s'adapte aux exigences du système de communications multi-porteuses en termes de TA multiples et de groupes multiples.
PCT/CN2012/079819 2011-08-08 2012-08-08 Procédé et dispositif de prise en charge d'un temporisateur de synchronisation dans un système de communications multi-porteuses WO2013020506A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110226077.7 2011-08-08
CN201110226077.7A CN102932900B (zh) 2011-08-08 2011-08-08 多载波通信系统中时间对齐定时器的处理方法及装置

Publications (1)

Publication Number Publication Date
WO2013020506A1 true WO2013020506A1 (fr) 2013-02-14

Family

ID=47647560

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/079819 WO2013020506A1 (fr) 2011-08-08 2012-08-08 Procédé et dispositif de prise en charge d'un temporisateur de synchronisation dans un système de communications multi-porteuses

Country Status (2)

Country Link
CN (1) CN102932900B (fr)
WO (1) WO2013020506A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6162973B2 (ja) * 2013-02-18 2017-07-12 株式会社Ｎｔｔドコモ ユーザ装置、基地局及び方法
JP2015088997A (ja) * 2013-10-31 2015-05-07 株式会社Ｎｔｔドコモ 移動局
CN105871518A (zh) * 2015-01-21 2016-08-17 夏普株式会社 混合自动重传请求实体管理的方法和用户设备
CN106941717B (zh) * 2016-01-04 2021-02-12 中兴通讯股份有限公司 故障报告方法及装置
CN107666704B (zh) * 2016-07-29 2019-10-18 深圳市中兴微电子技术有限公司 一种重启时间校准ta定时器的方法和用户设备
WO2018170742A1 (fr) * 2017-03-21 2018-09-27 Oppo广东移动通信有限公司 Procédé permettant à un terminal de maintenir une synchronisation de liaison montante, et terminal
CN111432422A (zh) * 2019-01-10 2020-07-17 索尼公司 电子装置、无线通信方法和计算机可读介质
EP3967084A4 (fr) 2019-07-09 2023-04-26 Nokia Technologies Oy Activation de cellulaire secondaire

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102014515A (zh) * 2009-12-31 2011-04-13 大唐移动通信设备有限公司 一种随机接入方法、设备和系统
CN102036411A (zh) * 2010-12-02 2011-04-27 大唐移动通信设备有限公司 一种进行随机接入的方法及装置
CN102123406A (zh) * 2010-01-11 2011-07-13 中兴通讯股份有限公司 多载波系统上行链路的维护方法、装置及系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102014515A (zh) * 2009-12-31 2011-04-13 大唐移动通信设备有限公司 一种随机接入方法、设备和系统
CN102123406A (zh) * 2010-01-11 2011-07-13 中兴通讯股份有限公司 多载波系统上行链路的维护方法、装置及系统
CN102036411A (zh) * 2010-12-02 2011-04-27 大唐移动通信设备有限公司 一种进行随机接入的方法及装置

Also Published As

Publication number Publication date
CN102932900A (zh) 2013-02-13
CN102932900B (zh) 2018-06-22

Similar Documents

Publication Publication Date Title
JP7352039B2 (ja) 無線リソース制御（ｒｒｃ）インアクティブ状態での小規模データ伝送
US20200205139A1 (en) Method and apparatus of operating multiple time alignment timers in mobile communication system supporting carrier aggregation
KR101818689B1 (ko) 캐리어 집적을 이용하는 불연속 수신 모드에서의 동작
WO2013020506A1 (fr) Procédé et dispositif de prise en charge d'un temporisateur de synchronisation dans un système de communications multi-porteuses
JP2019106699A (ja) 無線通信システムにおけるランダムアクセス手順中のｂｗｐ不活性タイマを処理する方法及び装置
EP3298832B1 (fr) Activation de paramètres de réception discontinue
JP2020524463A (ja) 無線通信システムにおけるアップリンクタイミングを調整する方法、及びこのための装置
KR20170128331A (ko) 캐리어 어그리게이션 내의 이차 셀 활성화 기법
WO2011041936A1 (fr) Procédé, système et dispositif pour synchronisation de liaison montante
WO2011069378A1 (fr) Procédé et système optimisés pour l'activation et la désactivation de porteuses élémentaires dans un système à porteuses multiples
WO2011131044A1 (fr) Procédé et appareil de déclenchement de rétablissement de connexion de gestion des ressources radio
WO2011050671A1 (fr) Procédé de configuration de porteuse composante en agrégation de porteuses et dispositif correspondant
CN109792792A (zh) 在drx配置或者重新配置之后的pdcch监测
US20130182668A1 (en) Method for processing carrier state in carrier aggregation system, and user equipment
US20220078771A1 (en) Method and apparatus of operating multiple time alignment timers in mobile communication system supporting carrier aggregation
WO2012059059A1 (fr) Procédé, système et dispositif permettant une notification d'informations et une acquisition d'avance temporelle
WO2012163023A1 (fr) Procédé, station de base et terminal pour allouer des ressources au moyen de porteuses multiples
WO2011082599A1 (fr) Procédé, appareil et système pour la maintenance sur la liaison montante dans un système à porteuses multiples
WO2012146154A1 (fr) Procédé et système de synchronisation sur la liaison montante dans un système de communication à porteuses multiples
TWI451788B (zh) A method and apparatus for timing advance in a wireless network for carrier aggregation
US20220295540A1 (en) Monitoring physical downlink control channel for small data transmission
WO2013020504A1 (fr) Procédé et dispositif de sélection de cellules dans un système de communication à porteuses multiples
WO2011120291A1 (fr) Procédé et appareil de réception permettant une planification discontinue d'ondes porteuses multiples
WO2016177137A1 (fr) Procédé et dispositif de transmission de données
WO2012167647A1 (fr) Procédé, dispositif et système de traitement de l'échec d'accès aléatoire à la cellule secondaire

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12821923

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12821923

Country of ref document: EP

Kind code of ref document: A1