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WO2008106869A1 - Procédé de commande d'accès de programmation en liaison ascendante - Google Patents

Procédé de commande d'accès de programmation en liaison ascendante Download PDF

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Publication number
WO2008106869A1
WO2008106869A1 PCT/CN2008/000455 CN2008000455W WO2008106869A1 WO 2008106869 A1 WO2008106869 A1 WO 2008106869A1 CN 2008000455 W CN2008000455 W CN 2008000455W WO 2008106869 A1 WO2008106869 A1 WO 2008106869A1
Authority
WO
WIPO (PCT)
Prior art keywords
uplink
random access
asc
transmission
mac layer
Prior art date
Application number
PCT/CN2008/000455
Other languages
English (en)
Chinese (zh)
Inventor
Yincheng Zhang
Hui Chen
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
Priority to JP2009552048A priority Critical patent/JP5007347B2/ja
Priority to KR1020097020906A priority patent/KR101056034B1/ko
Publication of WO2008106869A1 publication Critical patent/WO2008106869A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/04—Scheduled access

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to an uplink scheduling access control method, which is applied to a time division duplex system including a time division synchronous code division multiple access system. Background technique
  • the uplink enhanced service resource is scheduled by the Node B. Way to distribute. If the user equipment UE (User Equipment) needs to send uplink data in the uplink enhanced mode, the UE needs to apply for the uplink scheduling first, and then wait for the Node B to authorize the uplink enhanced service resource to send.
  • the uplink scheduling access refers to a process in which the UE sends an uplink scheduling application to the Node B without the authorized uplink enhanced service resource. In the TD-SCDMA system, the application process is generally implemented by means of random access.
  • the random access procedure is controlled by the MAC (Media Access Control) layer and the physical layer.
  • the MAC layer has two different entities controlling different random access requests, wherein the MAC-c/sh entity (common/shared MAC layer control entity) controls the transmission channel RACH (random access channel) triggering.
  • RACH random access channel
  • the random access request, and the MAC-e entity controls the random access request for the uplink scheduling access.
  • the random access procedure further includes two successive processes, namely an uplink synchronization process and a data transmission process.
  • the uplink synchronization code (the uplink synchronization code is also described as a signature)
  • the transmission and reception processes embodies the uplink common channel resource in the random access process - the physical random access channel (PRACH) )
  • PRACH physical random access channel
  • different uplink synchronization codes can be configured for the two different random access requests, but the same PRACH physical channel resources and their configurations are shared.
  • the MAC initiates a random access request, it needs to send the random access type to the physical layer.
  • different priorities are provided for random access requests of different services and categories.
  • the random access priority is reflected in the access service level, which is the ASC (Access Service Class).
  • ASC Access Service Class
  • multiple PRACH physical channel resources with different attributes, including transmission time intervals, can be configured at the same time.
  • the ASC and the transmission format are usually selected and controlled by the MAC layer entity.
  • the MAC entity initiates a random access request to the physical layer and triggers the physical layer random access procedure, the MAC entity sends the selected ASC and the transport format to the physical layer.
  • the physical layer selects the corresponding PRACH physical channel resource to send random access information according to the ASC and the transport format, and the random access resource configuration.
  • the physical channel defined for the random access procedure of the uplink scheduling access is an E-DCH Random Access Uplink Control Channel (E-RUCCH),
  • E-RUCCH shares the same physical channel resource and its configuration as the PRACH physical channel defined for the RACH random access, and the configuration includes the radio network controller RNC (Radio Network Controller) configured to transmit to the UE through the cell system information broadcast. And information sent to Node B through NBAP.
  • RNC Radio Network Controller
  • RNC Radio Network Controller
  • the technical problem to be solved by the present invention is to provide an uplink scheduling access control method, which is applied to a time division duplex system including a time division synchronous code division multiple access system, and implements a random access procedure for uplink scheduling access. control.
  • the present invention provides an uplink scheduling access control method, including: (1) an uplink enhanced medium access control MAC layer control entity of a user equipment UE side configures a transmission format and connection of the uplink enhanced access Enter the service level ASC and uplink scheduling information, and configure the random access type as uplink enhanced random access; (2) The uplink enhanced MAC layer control entity on the UE side initiates a random access request to the physical layer, and carries the transport format, the ASC, the random access type, and the uplink scheduling information in the request;
  • the physical layer at the UE side selects the corresponding uplink synchronization code and the physical random access channel resource to initiate a random access procedure according to the transmission format, ASC, and random access type carried in the received random access request, and sends an uplink scheduling procedure.
  • the transmission format is configured as follows:
  • the UE The uplink enhanced MAC layer control entity of the side configures the transport format as the transport format indicated in the system information or the transport format with the transmission time interval indicated in the system information.
  • the transmission format is configured as follows: The UE-side uplink enhanced MAC layer control entity performs a modulo operation according to the number of transmission formats of the random access channel in the UE identifier and the system information.
  • the UE-side uplink enhanced MAC layer control entity performs a modulo operation according to the number of transmission time intervals of the random access channel in the UE identifier and the system information, and selects a transmission time interval. And select and configure a transmission format with the transmission time interval.
  • the UE identifier is one or a combination of an international mobile subscriber identifier, a universal mobile communication system wireless network temporary identifier, and a cell wireless network temporary identifier.
  • the UE-side uplink enhanced MAC layer control entity selects a transmission format from a plurality of transmission formats having different transmission time intervals in the system information.
  • the UE side uplink enhanced MAC layer control entity selects a transmission format as: random selection, priority selection according to service related priority and/or transmission format, and length selection according to transmission time interval in the transmission format. , or a combination of the above.
  • the configuration of the ASC includes: The uplink enhanced MAC layer control entity on the UE side determines the uplink enhanced access request according to the ASC configured by the current cell and the MAC logical channel priority MLP of all the service logical channels involved in the uplink enhanced access request. ASC.
  • the uplink enhanced MAC layer control entity on the UE side selects a relatively high one of the two.
  • the priority is used as the ASC for the uplink enhanced access request.
  • the ASC is configured as follows:
  • the ASC that is used to enhance the access request is configured by the RRC layer through the system information or the RRC message.
  • the uplink enhanced MAC layer control entity on the UE side in the step (1) directly uses the ASC.
  • the system applying the uplink scheduling access control method is a time division duplex system including a time division synchronous code division multiple access system.
  • the method clarifies the parameters to be configured in the random access process of the uplink scheduling access control and the configuration method thereof, and provides a method for the physical layer to perform the random access process control according to the parameters, thereby solving the uplink in the uplink enhanced technology. Scheduling access control issues.
  • 1 is a flow chart of an embodiment of the present invention.
  • this embodiment includes the following steps. This is for convenience of explanation only, and the execution order of step 1, step 2 and step 3 may be reversed, and the order does not indicate a strict sequence of time.
  • Step 1 The uplink enhanced MAC layer control entity on the UE side configures the uplink enhanced access Transmission format, where the main configuration transmission time interval;
  • the random access procedure of the uplink scheduling access shares the same PRACH physical channel resource and its configuration with the RACH random access procedure.
  • the information of the PRACH physical channel resource is configured according to the transmission format of the RACH transport channel, and the RACH and the corresponding PRACH physics of multiple transport formats can be simultaneously configured in the information that is sent by the RNC to the UE. Channel resources. Therefore, in the RACH random access procedure, the UE-side uplink enhanced MAC layer control entity needs to select an appropriate transmission format according to the configuration information and the service data to be transmitted through the RACH, including a transmission time interval (TTI) and a transmission block size. The number of transport blocks, etc.
  • TTI transmission time interval
  • the information to be transmitted is the scheduling information with a fixed format and different contents, and therefore, the E-RUCCH is randomly Access, no corresponding transport format configured.
  • the UE-side uplink enhanced MAC layer control entity sends an E-RUCCH random access request to the physical layer.
  • the transport format must be indicated.
  • the control is mainly related to the transmission time interval in the transmission format.
  • the UE-side uplink enhanced MAC layer control entity actually needs to select and determine the transmission time interval. Then, according to the transmission time interval and the system information configuration, a transmission format is selected, or when the transmission format is selected, the transmission time interval is selected as the main selection content.
  • the transport block size and the number of transport blocks in the transport format have no practical meaning, and the physical layer can be ignored.
  • the UE-side uplink enhanced MAC layer control entity may select the transmission format and the transmission time interval of the E-RUCCH random access according to one of the following methods:
  • Method 1 In the system information that is sent by the RNC to the UE through the cell system information broadcast, in one of the transmission formats having different transmission time intervals, one of the transmission formats and the transmission time interval are configured and used for E- RUCCH random access. Then, the UE-side uplink enhanced MAC layer control entity may select the transmission format and its corresponding transmission time interval according to the system information. Line E-RUCCH random access. The transmission format or the transmission time interval may also be configured and indicated in the system information, and the UE-side uplink enhanced MAC layer control entity may directly select the transmission format in the system information, or select one according to the transmission time interval in the system information. The transmission format of the transmission time interval.
  • the UE-side uplink enhanced MAC layer control entity selects a transmission format according to the number of RACH transmission formats or the number of transmission time intervals in the UE identifier and system information, or selects a transmission time interval, and selects one type.
  • the UE identifier may include an IMSI (International Mobile Subscriber Identifier), a U-RNT Universal Mobile Telecommunications System (WLAN) temporary identifier, a C-RNTI (Cell Radio Network Temporary Identity), and the like. Specifically, if the N transmission formats are numbered 0, 1...N-1, the transmission format is selected by using the result of the UE's IMSI mod N (IMSI divided by N).
  • IMSI International Mobile Subscriber Identifier
  • WLAN Universal Mobile Telecommunications System
  • C-RNTI Cell Radio Network Temporary Identity
  • Method 3 The UE layer uplink enhanced MAC layer control entity selects a transmission format from a plurality of transmission formats having different transmission time intervals in the system information.
  • the method may further comprise: randomly selecting; selecting according to a priority of the service-related priority and/or the transmission format; selecting according to the length of the transmission time interval in the transmission format; or a combination of these methods. For example, select the transmission format with the highest priority or select the transmission format with the shortest transmission interval.
  • Step 2 The UE side uplink enhanced MAC layer control entity configures the ASC of the uplink enhanced access request.
  • the ASC may be determined by the UE-side uplink enhanced MAC layer control entity > the lowest priority ASC configured according to the local cell, and the service logical channel priority involved in the uplink enhanced access request, or may be determined by the RRC (radio resource)
  • the control layer is determined by system information or an RRC message, and is directly used by the UE side uplink enhanced MAC layer control entity.
  • each service logical channel is configured with a MAC logical channel priority (MLP).
  • MLP MAC logical channel priority
  • the uplink scheduling access is related to a certain service, and may include multiple logical channels. Therefore, the UE-side uplink enhanced MAC layer control entity may select an ASC that determines an uplink enhanced access request according to the two configuration information.
  • the two priority configuration information are comparable (so-called comparability, that is, the definition and value of the two priority information are the same, the usage method is the same, but the different definitions are different because of the common usage fields.
  • comparability that is, the definition and value of the two priority information are the same
  • the usage method is the same, but the different definitions are different because of the common usage fields.
  • the RRC layer may also configure the ASC used by the UE for the uplink enhanced access request by using the system information or the RRC message, and the UE-side uplink enhanced MAC layer control entity directly uses the ASC.
  • Step 3 The uplink enhanced MAC layer control entity on the UE side configures the random access type to uplink enhanced random access, and configures uplink scheduling information.
  • uplink scheduling information SI
  • the uplink scheduling information is configured by an uplink enhanced MAC layer control entity on the UE side.
  • Step 4 The uplink enhanced MAC layer control entity on the UE side initiates a random access request to the physical layer.
  • the request message includes the contents of the selection determination and configuration in steps 1, 2 and 3.
  • Step 5 The physical layer of the UE side selects a corresponding uplink synchronization code and a PRACH physical resource according to the transmission format, the ASC, and the random access type to initiate a random access procedure, and sends uplink scheduling information.
  • the physical side of the UE side After receiving the random access request, the physical side of the UE side according to the transmission format in the request message, the ASC, the random access type, and the configuration information in the system information.
  • the corresponding uplink synchronization code and the PRACH physical resource are selected to initiate a random access procedure.
  • the random access procedure is similar to the random access procedure before the introduction of the uplink enhancement technique by the TD-SCDMA system in the 3GPP (3rd Generation Partnership Project) standard.
  • the configuration information in the system information used in the MAC layer and the physical layer of the UE is configured by the RRC layer on the UE side to receive the system information and then configured to the MAC layer and the physical layer.
  • the method of the present invention can also be applied to uplink enhancement techniques of other systems in the existing 3GPP specifications, such as 3.84 Mcps TDD (Time Division Duplex), 7.68 Mcps TDD system. Industrial applicability
  • the method clarifies the parameters to be configured in the random access process of the uplink scheduling access control and the configuration method thereof, and provides a method for the physical layer 4 to perform random access process control according to the parameters, thereby solving the uplink enhancement technology.
  • the control problem of uplink scheduling access is not limited to:

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

Abstract

L'invention concerne un procédé de commande d'accès de programmation en liaison ascendante, qui consiste notamment (1) en une entité de commande MAC liaison ascendante renforcée, côté équipement utilisateur, qui configure le format transport, la classe service d'accès ASC et les informations de programmation en liaison ascendante, ainsi que le type d'accès aléatoire comme accès aléatoire en liaison ascendante renforcée; (2) une entité de commande MAC liaison ascendante renforcée, côté équipement utilisateur, qui envoie la demande d'accès aléatoire à la couche physique, la demande comportant ledit format transport, ASC, le type d'accès aléatoire et les informations de programmation en liaison ascendante, la couche physique, côté équipement utilisateur choisit le code synchrone en liaison ascendante correspondant et les ressources de canal d'accès aléatoire physique pour lancer la procédure d'accès aléatoire, et envoie les informations de programmation en liaison ascendante. Le procédé permet ainsi de résoudre le problème de la commande d'accès de programmation en liaison ascendante dans une technologie de liaison ascendante renforcée.
PCT/CN2008/000455 2007-03-07 2008-03-07 Procédé de commande d'accès de programmation en liaison ascendante WO2008106869A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009552048A JP5007347B2 (ja) 2007-03-07 2008-03-07 アップリンクスケジューリングアクセス制御方法
KR1020097020906A KR101056034B1 (ko) 2007-03-07 2008-03-07 업링크 스케줄링 접속 제어방법

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710080081.0 2007-03-07
CN200710080081 2007-03-07

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JP (1) JP5007347B2 (fr)
KR (1) KR101056034B1 (fr)
CN (1) CN101262279B (fr)
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CN101909354B (zh) * 2009-06-05 2013-11-06 电信科学技术研究院 判断ue类型的方法、系统及装置
CN101990310A (zh) 2009-07-30 2011-03-23 华为技术有限公司 一种随机接入方法及其装置
CN102111887B (zh) * 2010-02-05 2013-05-15 电信科学技术研究院 一种prach资源密度调整的方法及基站
CN102378389B (zh) * 2010-08-20 2015-09-16 中兴通讯股份有限公司 一种物理随机接入信道的接入方法和装置
CN102137503B (zh) * 2011-03-24 2014-08-13 中兴通讯股份有限公司 一种基于分层结构的上行链路控制方法及系统
CN102869113B (zh) * 2011-07-06 2016-01-27 上海贝尔股份有限公司 一种通信网络中的物理随机接入的方法和装置
CN107155217A (zh) * 2016-03-04 2017-09-12 株式会社Ntt都科摩 数据发送方法和用户设备
EP3364701B1 (fr) 2016-03-18 2022-02-23 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Procédé de communication, dispositif terminal et dispositif de réseau
CN112770393B (zh) * 2019-10-21 2023-05-30 大唐移动通信设备有限公司 信道选择、配置方法及装置
CN114245470B (zh) * 2021-12-13 2024-03-29 小唐科技(上海)股份有限公司 一种提高rach接入速度的方法及无线设备

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Also Published As

Publication number Publication date
CN101262279A (zh) 2008-09-10
KR101056034B1 (ko) 2011-08-11
JP5007347B2 (ja) 2012-08-22
CN101262279B (zh) 2012-09-26
KR20090129458A (ko) 2009-12-16
JP2010520679A (ja) 2010-06-10

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