WO2009006822A1 - Procédé d'accès aléatoire d'un système en liaison montante amélioré d'accès multiple par répartition en codes de synchronisation par répartition dans le temps - Google Patents

Procédé d'accès aléatoire d'un système en liaison montante amélioré d'accès multiple par répartition en codes de synchronisation par répartition dans le temps Download PDF

Info

Publication number
WO2009006822A1
WO2009006822A1 PCT/CN2008/071502 CN2008071502W WO2009006822A1 WO 2009006822 A1 WO2009006822 A1 WO 2009006822A1 CN 2008071502 W CN2008071502 W CN 2008071502W WO 2009006822 A1 WO2009006822 A1 WO 2009006822A1
Authority
WO
WIPO (PCT)
Prior art keywords
random access
uplink
carrier
channel
physical
Prior art date
Application number
PCT/CN2008/071502
Other languages
English (en)
Chinese (zh)
Inventor
Yincheng Zhang
Hui Chen
Hu Liu
Original Assignee
Zte Corporation
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 Zte Corporation filed Critical Zte Corporation
Publication of WO2009006822A1 publication Critical patent/WO2009006822A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]

Definitions

  • the present invention relates to the field of communications, and more particularly to a random access method for a time division synchronous code division multiple access uplink enhancement system.
  • BACKGROUND In order to meet the increasing demand for high-speed uplink packet data services of users, and to better support high-speed downlink packet access (HSDPA) technology to provide support for higher service quality, 3GPP introduced high-speed uplink packets based on Wideband Code Division Multiple Access (WCDMA) and Time Division Synchronization Code Division Multiple Access (TD-SCDMA) in Rel6 and Rel7 respectively.
  • WCDMA Wideband Code Division Multiple Access
  • TD-SCDMA Time Division Synchronization Code Division Multiple Access
  • HSUPA High Speed Uplink Packet Access
  • E-DCH Enhanced Uplink or Enhanced Dedicated Channel
  • HSUPA adopts hybrid automatic repeat reQuest (HARQ), high-order modulation (16QAM), Node B (fast scheduling), and T/P-based reverse RoT control to achieve higher The user's peak rate and 'j, zone data throughput, and can achieve stable reverse RoT control.
  • HARQ hybrid automatic repeat reQuest
  • 16QAM high-order modulation
  • Node B fast scheduling
  • T/P-based reverse RoT control to achieve higher The user's peak rate and 'j, zone data throughput, and can achieve stable reverse RoT control.
  • the HSUPA service is classified into a scheduled transmission and a non-scheduled transmission service according to different scheduling modes.
  • the enhanced uplink physical channel resource of the non-scheduled transmission is configured by the Serving Radio Network Controller (SRNC).
  • the user equipment User Equipment, UE for short
  • UE User Equipment
  • the SRNC first allocates an enhanced uplink physical channel resource pool and sends it to the NodeB, and then the Node B adopts dynamic scheduling.
  • the method allocates an enhanced uplink physical channel resource to the UE, and the allocation manner is the same as that of the existing High Speed Physical Downlink Shared Channel (HS-PDSCH) physical channel resource allocation method related to the existing HSDPA.
  • HSUPA introduces a Enhance Physical Uplink Channel (E-PUCH) to carry the corresponding transport channel.
  • E-PUCH Enhance Physical Uplink Channel
  • E-RUCHH Enhanced Random Access Uplink Control Channel
  • E-AGCH Absolute Grant Channel
  • E-HICH Enhanced HARQ Acknowledgement Indicator Channel
  • the E-RUCCH and E-AGCH physical channels are only used for scheduling transmission.
  • the uplink enhanced random access channel (E-RUCCH, E-DCH random access uplink control channel, that is, the enhanced uplink random access uplink control channel) is a physical layer control channel, and is used when the UE has no 4 authorized resources.
  • the transmission related auxiliary scheduling information (Schedule Information, referred to as SI), request 4 is authorized to perform E-DCH data transmission.
  • the physical channel access mode is the same as the physical random access channel (PRACH).
  • the E-RUCCH physical channel is allocated and used in the common channel preemption mode. Therefore, E-RUCCH and PRACH are performed.
  • Share physical code channel resources In order to share the physical code channel with the PRACH and distinguish the PRACH physical channel and the E-RUCCH physical channel in the random access process, the uplink synchronization code (8 S YNCs) transmitted during the uplink synchronization process in the random access process.
  • - UL code divided into two parts, one part is used to indicate PRACH random access (expressed as uplink synchronization code set A), and the other part is used to indicate E-RUCCH random access (represented as uplink synchronization code set B), and
  • the set A and B are sent to the UE through the cell system information broadcast, and are sent to the Node B through a Node B Application Part (NBAP) message.
  • NBAP Node B Application Part
  • one multi-carrier cell includes multiple carriers.
  • One of the plurality of carriers is a primary carrier, and the other carriers are secondary carriers, and all or part of the common channels are established and used only on the primary carrier.
  • the common channel PRACH is only configured and used on the primary carrier.
  • E-DCH transmission is usually performed on the secondary carrier, even on the primary carrier and the secondary carrier.
  • E-DCH transmission In order to enable the UE to transmit relevant auxiliary scheduling information and request authorization for E-DCH data transmission in the case of multi-carrier E-DCH transmission, the corresponding E-RUCCH physics needs to be introduced in the multi-carrier system. Channel configuration and how to use it. Due to E-RUCCH and PRACH physical channels
  • the present invention provides a random access method for a time division synchronous code division multiple access uplink enhancement system.
  • the random access method of the time division synchronous code division multiple access uplink enhancement system includes: enabling uplink pilot time slot resources on a secondary carrier of a time division synchronous code division multiple access uplink enhancement system, and synchronizing the time synchronization code
  • the physical channel resources of the fast physical access channel, the physical random access channel, and the uplink enhanced random access control channel are respectively configured on the primary carrier and the secondary carrier of the multiple access uplink enhancement system; the primary carrier and the secondary carrier are configured to indicate The uplink synchronization code set of the common random access and the uplink enhanced random access; and the user equipment performs normal random access and/or uplink enhanced random access in one transmission time interval.
  • the user equipment performs normal random access or uplink enhanced random access on the primary carrier and/or the secondary carrier.
  • the physical random access channel and the uplink enhanced random access control channel physical channel share physical code channel resources on the same carrier.
  • the uplink pilot time slot resource of the secondary carrier is enabled to transmit the uplink synchronization code in the uplink pilot time slot on the secondary carrier.
  • the primary carrier and the secondary carrier may each be configured with an uplink synchronization code set.
  • the uplink synchronization code set may also be configured to the primary carrier, which is shared by the primary carrier and the secondary carrier.
  • the information about the physical channel resources on the primary carrier and the uplink synchronization code set are sent to the user equipment by using the system information broadcast mode.
  • the information about the physical channel resources on the secondary carrier and the uplink synchronization code set are sent to the user equipment by using a radio bearer setup/reconfiguration process or a system information broadcast mode.
  • the user equipment can perform normal random access or uplink enhanced random access on the primary carrier and/or the secondary carrier in a transmission time interval.
  • the user equipment can perform normal random access on the primary carrier or the secondary carrier. While the uplink enhances the random access, the uplink enhanced random access is performed on other carriers; the user equipment may also perform normal random access or uplink enhanced random access on the primary carrier or a secondary carrier.
  • the common random access refers to a random access that sends data in a physical random access channel manner; the uplink enhanced random access refers to a random access in which the uplink enhanced access control channel transmits data.
  • the invention can be compatible with the 3GPP single carrier TD-SCDMA uplink augmentation system and the CCSA multi-carrier TD-SCDMA system, and expands the random access resources and the corresponding configuration use method in the multi-carrier TD-SCDMA system, so that the UE can be more
  • the PRACH and E-RUCCH random access are performed on the carriers, and the RACH and scheduling information are transmitted, thereby supporting the introduction of the uplink enhancement technology in the multi-carrier TD-SCDMA system.
  • FIG. 1 is a schematic diagram of a random access method of a time division synchronous code division multiple access uplink enhancement system according to an embodiment of the present invention
  • FIG. 2 is a time division synchronization code division multiple access uplink according to an embodiment of the present invention.
  • the random access method includes the following steps (the following steps do not indicate strict chronological order):
  • S102 On the network side, configure FPACH, PRACH, and E-RUCCH physical channel resources on the primary carrier and the secondary carrier of the TD-SCDMA system, and send resource information about the PRACH and the E-RUCCH to the user equipment.
  • the PRACH and E-RUCCH physical channels on each carrier can share physical code channel resources.
  • the primary carrier and the secondary carrier are configured with an uplink synchronization code set for indicating a random access of the physical random access channel and the uplink enhanced random access channel, and the uplink synchronization code set is sent to the user equipment.
  • the uplink synchronization code set for indicating the random access of the PRACH and the random access of the E-RUCCH may be separately configured for each carrier; or a shared one may be configured for indicating the random access of the PRACH and the randomization of the E-RUCCH.
  • the set of uplink synchronization codes that are accessed, and the shared set is configured for the primary carrier.
  • one multi-carrier cell in a multi-carrier TD-SCDMA system includes three carriers: a primary carrier, a secondary carrier 1, and a secondary carrier 2.
  • the uplink pilot time slot (UpPTS) on the secondary carrier is enabled, that is, the UE may transmit an uplink synchronization code (SYNC_UL code) on the UpPTS of the secondary carrier.
  • SYNC_UL code uplink synchronization code
  • resources related to PRACH random access and E-RUCCH random access are configured on all carriers.
  • the UE may perform PRACH random access and E-RUCCH random access on the primary carrier, and/or the secondary carrier 1, and/or the secondary carrier 2.
  • the FPACH physical channel and the PRACH/E-RUCCH physical channel resource are configured on the three carriers (the primary carrier and the secondary carrier) of the three-carrier cell, and the physical channel resources are shared by the PRACH and the E-RUCCH physical channel.
  • the uplink synchronization code sets on the three carriers for indicating the PRACH random access and the E-RUCCH random access are the same, wherein 4 are used for PRACH random access and the other 4 are used for E-RUCCH random access.
  • the wireless network is composed of two network elements: Radio Network Controller (RNC) and Node B, RNC and Node B are connected through Iub interface
  • RNC Radio Network Controller
  • the process may be implemented by the RNC to initiate a Physical Shared Channel Reconfiguration procedure in the NBAP protocol to the Node B through the Iub interface.
  • the PHYSICAL SHARED CHANNEL RECONFIGURATION REQUEST message includes the resource configuration information and the carrier indication information is added to implement the resource configuration for each carrier separately.
  • the configuration method is the same as that in the single carrier TD-SCDMA uplink enhanced system in the existing 3GPP standard.
  • the foregoing configuration process can be implemented by interacting with related functional modules in the Node B.
  • the method for configuring the resource configuration on the primary carrier is the same as the method in the single-carrier TD-SCDMA uplink augmentation system in the existing 3GPP standard, that is, the system information broadcast mode is sent to the UE.
  • the resource configuration information related to the E-RUCCH random access may be sent to the UE in the radio bearer setup/reconfiguration process, or may be sent to the UE in the system information broadcast manner.
  • the radio bearer setup/reconfiguration process is performed by the RNC through the Uu interface (the network side and the UE) Between the RRC connection establishment, the RRC connection establishment, the radio bearer establishment, and the radio bearer reconfiguration process (Radio Resource Control, RRC for short)
  • the radio bearer reconfiguration, the radio bearer release, the transport channel reconfiguration, the hysical channel reconfiguration, and the cell update process are implemented.
  • the UE determines to perform PRACH random access and/or E-RUCCH random access, and selects one or more carriers to initiate PRACH random access and/or E-RUCCH random access procedure according to resource configuration. If the HSUPA related resource is allocated and the E-RUCCH random access is initiated, the B'J UE may perform E-RUCCH random access on one or more carriers of the primary carrier, the secondary carrier 1, and the secondary carrier 2. To send SI information to Node B. As shown in Figure 2, UE2, UE3, and UE4 perform E-RUCCH random access on the primary carrier, the secondary carrier 1, and the secondary carrier 2, respectively. On a TTI, on the same carrier, the UE can only perform PRACH random access or
  • the E-RUCCH random access procedure cannot simultaneously perform PRACH random access and E-RUCCH random access procedures. However, on different carriers, the UE may perform PRACH random access or E-RUCCH random access procedure on one carrier, and perform on another carrier or multiple carriers.
  • the UE may also only select PRACH random on one carrier
  • E-RUCCH random access procedure When the UE performs PRACH random access or E-RUCCH random access on a certain carrier, it is required to select an uplink synchronization code set for different random access according to the carrier configuration, and select an uplink synchronization in the corresponding set.
  • the code performs an uplink synchronization process.
  • UE1 and UE4 perform PRACH random access on the primary carrier and the secondary carrier 2, respectively, and UE2 and UE3 perform E-RUCCH random access on the primary carrier and the secondary carrier 1, respectively.
  • the Node B determines and receives the PRACH physical channel or the E-RUCCH physical channel on each carrier according to the uplink synchronization code, and separately performs data received from the PRACH and E-RUCCH physical channels. deal with. Since each carrier can perform both PRACH random access and E-RUCCH random access, and different uplink synchronization code sets are respectively configured, for each carrier, the Node B needs to receive according to the uplink synchronization process.
  • the uplink synchronization code is used to determine the PRACH physical channel or the E-RUCCH physical channel.
  • Node B Since the transmission and reception of the uplink synchronization code correspond to the transmission and reception of the subsequent PRACH physical channel or the E-RUCCH physical channel, although the PRACH physical channel and the E-RUCCH physical channel share the same physical code channel resource, Node B It is still possible to distinguish between receiving a PRACH physical channel or an E-RUCCH physical channel. In the Node B, the data received from the E-RUCCH physical channel is sent to the relevant entity of the MAC-e sublayer associated with the E-DCH transmission in the Node B.
  • the wireless network For the data received from the PRACH physical channel, if the wireless network includes two entities, RNC and Node B, it is sent to the RNC in the form of RACH transport channel data packets; if there is only one entity of the Node B, it is sent to the Node B.
  • RNC Radio Network Controller
  • the present invention can solve the problem that the UE sends relevant auxiliary scheduling scheduling information when requesting authorization to perform E-DCH data transmission when there is no 4 authorized resources in the case of multi-carrier E-DCH transmission.
  • the present invention can be compatible with the 3GPP single-carrier TD-SCDMA uplink augmentation system and the CCSA multi-carrier TD-SCDMA system, and expands the random access resources and corresponding configuration usage methods in the multi-carrier TD-SCDMA system, so that The UE can perform PRACH and E-RUCCH random access on multiple carriers, and transmits RACH and scheduling information, thereby supporting the introduction of uplink enhancement technology in the multi-carrier TD-SCDMA system.
  • the above is only the embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Where in the spirit and originality of the present invention

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 d'accès aléatoire destiné à un système en liaison montante amélioré d'accès multiple par répartition en codes de synchronisation par répartition dans le temps, le procédé consiste à : initier une ressource d'intervalle de temps pilote en liaison montante sur une onde porteuse auxiliaire d'un système en liaison montante amélioré d'accès multiple par répartition en codes de synchronisation par répartition dans le temps, et attribuer une ressource de canal physique d'un canal d'accès physique rapide, un canal d'accès aléatoire physique et un canal de contrôle en liaison montante d'accès aléatoire amélioré sur une onde porteuse primaire et une onde porteuse auxiliaire respectivement (S102) ; attribuer l'ensemble des codes synchrones en liaison montante utilisés pour indiquer un accès aléatoire commun et un accès aléatoire en liaison montante amélioré pour une onde porteuse primaire et une onde porteuse auxiliaire (S104) ; et réaliser par un équipement utilisateur un accès aléatoire commun et/ou un accès aléatoire en liaison montante amélioré dans un intervalle de temps de transmission (S106).
PCT/CN2008/071502 2007-07-05 2008-07-01 Procédé d'accès aléatoire d'un système en liaison montante amélioré d'accès multiple par répartition en codes de synchronisation par répartition dans le temps WO2009006822A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710128404.9 2007-07-05
CN 200710128404 CN101340230B (zh) 2007-07-05 2007-07-05 时分同步码分多址上行增强系统的随机接入方法

Publications (1)

Publication Number Publication Date
WO2009006822A1 true WO2009006822A1 (fr) 2009-01-15

Family

ID=40214205

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/071502 WO2009006822A1 (fr) 2007-07-05 2008-07-01 Procédé d'accès aléatoire d'un système en liaison montante amélioré d'accès multiple par répartition en codes de synchronisation par répartition dans le temps

Country Status (2)

Country Link
CN (1) CN101340230B (fr)
WO (1) WO2009006822A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011097803A1 (fr) * 2010-02-11 2011-08-18 上海贝尔股份有限公司 Procédé et appareil permettant de détecter l'échec d'une transmission sur un canal physique d'accès aléatoire dans un système de communication basé sur une agrégation de porteuses

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8989107B2 (en) * 2009-04-30 2015-03-24 Qualcomm Incorporated Activation deactivation of secondary UL carrier in DC HSUPA
CN101925130A (zh) * 2009-06-16 2010-12-22 中兴通讯股份有限公司 多载波配置信息的发送方法及辅载波分配方法
CN101925089A (zh) * 2009-06-16 2010-12-22 大唐移动通信设备有限公司 一种多载波参数配置的方法、系统和装置
CN101925143A (zh) * 2009-06-17 2010-12-22 大唐移动通信设备有限公司 一种多载波切换的方法、系统和装置
CN101925159B (zh) * 2009-06-17 2014-08-27 大唐移动通信设备有限公司 一种移动通信方法及设备
CN104601314B (zh) * 2010-04-30 2019-12-17 索尼公司 选择成份载波的方法、基站、终端和通信系统
CN102271415B (zh) * 2010-06-01 2016-06-15 中兴通讯股份有限公司 随机接入过程与载波操作过程冲突的处理方法和系统
EP3300439B1 (fr) * 2015-06-30 2021-04-07 Huawei Technologies Co., Ltd. Procédé et dispositif de transmission de données
CN107734712A (zh) * 2016-08-12 2018-02-23 电信科学技术研究院 一种随机接入方法和设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1731749A (zh) * 2004-08-07 2006-02-08 华为技术有限公司 多载频系统接入的方法
CN1734976A (zh) * 2004-08-14 2006-02-15 华为技术有限公司 实现用户设备无线资源控制的方法
CN1738473A (zh) * 2004-08-17 2006-02-22 中兴通讯股份有限公司 一种应用于多载波码分多址系统中的信道配置方法
CN1750703A (zh) * 2004-09-13 2006-03-22 大唐移动通信设备有限公司 多载波时分双工移动通信系统分配无线资源的方法
EP1662834A1 (fr) * 2004-11-24 2006-05-31 Siemens Mobile Communications S.p.A. Attribution dynamique de canaux basée sur l'interférence et l'utilisation du spectre des frequences radio dans un système cellulaire multiporteuse de télécommunications
US20060133522A1 (en) * 2004-12-22 2006-06-22 Arak Sutivong MC-CDMA multiplexing in an orthogonal uplink

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1731749A (zh) * 2004-08-07 2006-02-08 华为技术有限公司 多载频系统接入的方法
CN1734976A (zh) * 2004-08-14 2006-02-15 华为技术有限公司 实现用户设备无线资源控制的方法
CN1738473A (zh) * 2004-08-17 2006-02-22 中兴通讯股份有限公司 一种应用于多载波码分多址系统中的信道配置方法
CN1750703A (zh) * 2004-09-13 2006-03-22 大唐移动通信设备有限公司 多载波时分双工移动通信系统分配无线资源的方法
EP1662834A1 (fr) * 2004-11-24 2006-05-31 Siemens Mobile Communications S.p.A. Attribution dynamique de canaux basée sur l'interférence et l'utilisation du spectre des frequences radio dans un système cellulaire multiporteuse de télécommunications
US20060133522A1 (en) * 2004-12-22 2006-06-22 Arak Sutivong MC-CDMA multiplexing in an orthogonal uplink

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011097803A1 (fr) * 2010-02-11 2011-08-18 上海贝尔股份有限公司 Procédé et appareil permettant de détecter l'échec d'une transmission sur un canal physique d'accès aléatoire dans un système de communication basé sur une agrégation de porteuses

Also Published As

Publication number Publication date
CN101340230B (zh) 2012-12-19
CN101340230A (zh) 2009-01-07

Similar Documents

Publication Publication Date Title
WO2009006823A1 (fr) Procédé d'accès aléatoire de système évolué de liaison montante à accès multiple par répartition en code de synchronisation et répartition dans le temps
US11743947B2 (en) Method and apparatus for performing random access in a mobile communication system
WO2009006822A1 (fr) Procédé d'accès aléatoire d'un système en liaison montante amélioré d'accès multiple par répartition en codes de synchronisation par répartition dans le temps
EP2391170B1 (fr) Procédé d'accès par paquets en liaison montante à grande vitesse d'un système d'accès multiple à division de code de synchronisation de division temporelle multiporteuse et système correspondant
EP3206452B1 (fr) Transfert de données à priorité optimisée sur une liaison lte prose laterale dans le contexte d'une attribution autonome de ressources
EP2129147B1 (fr) Procédé de transfert rapide dans une liaison montante améliorée
JP6038880B2 (ja) キャリアアグリゲーションをサポートする無線通信システムで複数個のタイミングアドバンスグループを管理する方法及び装置
JP4792525B2 (ja) Ｔｄ−ｓｃｄｍａシステム及びそれにおけるｈｓｕｐａランダムアクセスの制御方法
KR101710607B1 (ko) 이동통신 시스템에서 단말기의 핸드오버를 지원하는 방법 및 장치
EP1944890B1 (fr) Procede de commande synchrone ascendante et appareil de voie d'information partagee tres rapide
KR20190042525A (ko) 이동통신 시스템에서 랜덤 액세스 절차를 수행하는 방법 및 장치
WO2009105933A1 (fr) Appareil de configuration et procédé d'acquittement de retard temporel dans un système à multiples porteuses
WO2011018038A1 (fr) Procédé, dispositif et système de détermination d'emplacements de ressources
Tripathi et al. LTE E-UTRAN and its access side protocols
WO2008028369A1 (fr) Système et procédé destinés à améliorer la commande de puissance de synchronisation en boucle fermée et la transmission de l'information d'ordonnancement assistante d'une liaison montante
WO2012019488A1 (fr) Procédé et système pour régler la synchronisation dans un mode d'ordonnancement semi-persistent

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: 08757896

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: 08757896

Country of ref document: EP

Kind code of ref document: A1