WO2007098641A1 - Méthode d'accès s'appliquant à des équipements utilisateurs dans un système de communication mobile - Google Patents

Méthode d'accès s'appliquant à des équipements utilisateurs dans un système de communication mobile Download PDF

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Publication number
WO2007098641A1
WO2007098641A1 PCT/CN2006/000319 CN2006000319W WO2007098641A1 WO 2007098641 A1 WO2007098641 A1 WO 2007098641A1 CN 2006000319 W CN2006000319 W CN 2006000319W WO 2007098641 A1 WO2007098641 A1 WO 2007098641A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
bandwidth
network side
side device
access
Prior art date
Application number
PCT/CN2006/000319
Other languages
English (en)
Chinese (zh)
Inventor
Yusun Fu
Zhilin Zhao
Tao Cai
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to CN2006800134495A priority Critical patent/CN101164351B/zh
Priority to PCT/CN2006/000319 priority patent/WO2007098641A1/fr
Publication of WO2007098641A1 publication Critical patent/WO2007098641A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/20—Negotiating bandwidth

Definitions

  • the present invention relates to the field of mobile communication technologies, and in particular to a method for user 'device (UE) access in a long term evolution (LTE) mobile communication system.
  • UE user 'device
  • LTE long term evolution
  • FIG. 1 shows the evolution of the UMTS network.
  • HSDPA High Speed Downlink Packet Access
  • HSUPA High Speed Uplink Packet Access
  • Step 1 RRC (Radio Resource Control) on the user equipment side sends radio resource control to the RC of the serving radio network controller (Serving Radio Netwprk Controller) through the CCCH channel.
  • RRC Connection Request RRC Connection Request
  • NodeB NodeB
  • service radio network controller perform radio link, Iub data transmission bearer, and synchronization establishment;
  • Step 2 The RRC of the serving radio network controller sends a radio resource control connection establishment (RRC Connection Setup) message through a common control channel (CCCH).
  • Step 3 The RRC of the user equipment side carries the radio access capability of the user equipment in the RRC of the RC Connection Setup Complete message sent to the serving radio network controller through the dedicated control channel (DCCH), and the RRC of the serving radio-network controller is based on the radio. Access capability for resource allocation.
  • the above wireless access capabilities include silent mode support capability, radio link control (RLC) capability, security mode, and location capability.
  • the downlink physical housing access technology adopts the Orthogonal Frequency Division Multiple Access (OFDMA) mode, and supports different bandwidth capabilities for different user equipments, for example, 1.25M, 2.5M, 5M, 10M, 15M, 20M. 'If the user equipment uses the access method in WCDMA and the medium-term evolution system, different bandwidth resources cannot be allocated for different user equipments in the OFDMA mode.
  • OFDMA Orthogonal Frequency Division Multiple Access
  • the present invention provides a method for accessing user equipment in a mobile communication system to accommodate different bandwidth capabilities of different user equipments in a mobile communication system.
  • a method for accessing user equipment in a mobile communication system characterized in that the method comprises the following steps:
  • the network side device allocates resources matching the bandwidth capability of the user equipment to the user equipment according to the bandwidth capability information of the user equipment, and allows the user equipment to access.
  • the step a includes: the user equipment initiates an initial access, and in the initial access process, the user equipment carries the user equipment bandwidth capability information to the network side device through the random access channel.
  • the step a further includes: after receiving the reported user equipment bandwidth capability information, the network side service sends a message requesting to confirm the user equipment bandwidth capability information to the user equipment; The user equipment sends a message to the network side device to confirm the bandwidth capability of the UE.
  • the user equipment bandwidth capability information includes a bandwidth size supported by the user equipment
  • the step b includes: the network side device allocates, to the user equipment, a bandwidth resource that does not exceed a bandwidth size supported by the user equipment.
  • the size of the bandwidth supported by the user equipment is identified by a number
  • the step b further includes: the network side device searches for a corresponding bandwidth according to the number identifier.
  • the user equipment bandwidth capability information includes a bandwidth size and a bandwidth location supported by the user equipment
  • the step b includes: the network side device determines the carrier frequency according to the bandwidth location, and allocates, for the user equipment, the bandwidth supported by the user equipment.
  • Bandwidth resources Preferably, the bandwidth location is represented by a relative frequency offset and a bandwidth one-to-one correspondence.
  • the network side device determines the carrier frequency according to the bandwidth location, and determines the carrier identifier according to the relative frequency offset and the bandwidth, and determines the carrier identifier according to the carrier identifier. Carrier frequency.
  • the bandwidth position is represented by an absolute frequency offset and a bandwidth-correspondence.
  • the method further includes: the user equipment initiates a radio resource control link setup request message, and the network side device returns a user equipment radio resource control link setup response message.
  • the mobile communication system is a long term evolution mobile communication system
  • the network side device is an evolved No deB node.
  • the UE and the network device exchange user equipment bandwidth capability information, so that the user equipment knows the bandwidth capability of the UE, and allocates suitable resources to the UE, and adapts to users of different bandwidths in the mobile communication system.
  • the device can support the base station to implement the flexible downlink transmission, so as to better meet the requirements of the user equipment, and the present invention carries the UE bandwidth capability in the initial access process, and can quickly allocate resources for the user equipment. , 'Reduce delay and save air interface resources. - BRIEF DESCRIPTION OF THE DRAWINGS
  • Figure 1 shows the evolution of a UMTS network.
  • Figure 2 shows the user access process in a WCDMA system.
  • Figure 3 is a schematic diagram of the structure of a LTE system.
  • Figure 4 shows an internal functional layer of an eNodeB node and a Gateway Node (GW).
  • Figure 5 shows an example of using subband scheduling.
  • FIG. 6 is a schematic diagram of an access process according to Embodiment 1 of the present invention.
  • FIG. 7 is a schematic diagram of an access process according to Embodiment 2 of the present invention.
  • Figure 8 shows the carrier identified by the bandwidth and absolute frequency offset.
  • Figure 9 shows the correspondence between carrier identification, bandwidth, and relative frequency offset.
  • FIG. 10 is a schematic diagram of resource allocation. Mode for carrying out the invention
  • LTE is a broadband system that can occupy up to 20M of bandwidth, in which different user devices can have different bandwidth capabilities.
  • the J RC Connection Setup Complete message carries the radio access capability information of the user equipment, it does not carry the bandwidth capability information that the user equipment can support, on the other hand, if The RRC Connection Setup Complete message carries the bandwidth capability information that the user equipment can support. Since the information is sent to the network side after the RRC connection is established, the user equipment cannot be quickly allocated resources, but resources are generated. Waste.
  • the long-term evolution system consists of a traditional base station (NodeB), a radio network controller (RNC), and a core network (CN)'s three-layer node network structure, simplified for the simple two nodes of the evolved NodeB (eNodeB) and eNodeB nodes.
  • Layer node structure the network structure is shown in Figure 3, ..
  • FIG. 3 is a schematic structural diagram of a simplified LTE system.
  • the node 100 above the eNodeB may also be referred to as a Gateway Node (GW) or a central node.
  • GW Gateway Node
  • the user equipment (UE) establishes a Radio Resource Control (RRC) management relationship with the eNodeB node 110 of the network.
  • RRC Radio Resource Control
  • FIG. 4 shows an internal functional layer of an eNodeB node and a gateway node (GW).
  • the eNodeB node includes a physical layer (PHY) adopting a hybrid automatic repeat transmission mechanism (HARQ), a medium access control (MAC), a low-level part of RRC, an RRM, and a measurement provision (Measure Provision), and a measurement configuration function of the eNodeB node.
  • PHY physical layer
  • HARQ hybrid automatic repeat transmission mechanism
  • MAC medium access control
  • RRC radio resource control
  • RRM Radio Resource Management
  • Measure Provision a measurement provision
  • the gateway node includes the gateway user plane and the gateway control plane
  • the gateway user plane includes the user plane (User Plane), PDCP
  • the gateway control plane includes the mobile Sexual Management (MM) Entity, Radio Access Bearer (RAB) control.
  • the radio bearer (RB) control, the connection mobility control (Connection Mobility Control), and the RRC of the upper layer may be located in the eNodeB node or the gateway node or the radio resource management server.
  • LTE systems do not have K C nodes, but the functions of R C nodes are decomposed into eNodeB nodes and gateway nodes.
  • the UE establishes a connection through the eNodeB node 110 and the gateway node to implement mobile communication services such as voice call or data transmission.
  • LTE Long Term Evolution
  • wide channels typically exhibit frequency selective fading. That is to say, at a certain moment, the fading of a certain user equipment on a subcarrier within a certain bandwidth can be considered to be the same, but the fading on other subcarriers cannot be considered that the fading on the subcarrier is the same, and different
  • the fading of user equipment is usually different.
  • user equipment 1 has the same fading on subcarrier 1 and subcarrier 2, but may differ from fading on subcarrier 4.
  • the subcarriers with better conditions can be selected for different user equipments to transmit data, so that the propagation conditions of most user equipments are better. , achieving multi-user diversity gain, improved Spectral efficiency. Since the fading is time-varying, the allocation of subcarriers needs to be constantly updated, so it is necessary
  • OFDM is scheduled in the frequency domain.
  • Figure 5 shows an example of employing subband scheduling.
  • the symbols in the time domain can be transmitted on different sub-bands according to the channel environment according to a certain scheduling policy.
  • FIG. 6 is a schematic diagram of an access process of the present invention. In the initial access, the following steps are included:
  • Step 1 The UE initiates an initial access, and performs interaction with the MAC address of the eNodeB node in the initial access process, and carries the random access identifier, the cell identifier, and the downlink information through the random access channel (RAC).
  • RAC random access channel
  • the MAC bandwidth capability information of the UE is also reported to the eNodeB node;
  • Step 2 The MAC address of the eNodeB node reports the UE bandwidth capability information to the RM.
  • the RRM schedules and allocates the bandwidth resource that does not exceed the bandwidth capability according to the received UE bandwidth capability information, and sends the downlink L1/L2 control channel to the UE, allowing the UE. Access
  • Step 3 ⁇ initiate an RRC link setup request message
  • Step 4 The RRC of the eNodeB node sends back a message to the UE RRC Link Setup Response.
  • FIG. 7 is a schematic diagram of an access process according to the present invention. In the initial access, the following steps are included:
  • Step 1 The UE initiates an initial access, and performs interaction with the MAC address of the eNodeB node in the initial access process, and carries the random access identifier, the cell identifier, and the downlink signal to interference ratio through the random access channel (RAC).
  • RAC random access channel
  • ' also carries the UE bandwidth capability information reported to the MAC of the eNodeB node;
  • ⁇ 'Step 2 the eNodeB node's MAC sends a request to confirm the UE bandwidth capability
  • Step 3 The UE sends a message confirming the bandwidth capability of the UE to the MAC address of the eNodeB node.
  • Step 4 The RRC of the eNodeB node reports the bandwidth capability information of the UE to the RRM, and the RRM schedules and allocates the bandwidth capability according to the received bandwidth capability information of the UE.
  • the bandwidth resource is sent to the UE through the downlink L1/L2 control channel, and the UE is allowed to access;
  • Step 5 The UE initiates an RRC link setup request message.
  • the bandwidth capability information may include only the bandwidth size, and may also include the bandwidth size, and the location of the bandwidth, that is, the carrier frequency offset.
  • the carrier frequency offset can adopt the relative frequency offset identification mode and the absolute frequency offset identification mode.
  • Figure 8 shows the carrier identified by the bandwidth and absolute frequency offset. For example, (10, 2.5) indicates a bandwidth of 10M and a frequency offset of 2.5M.
  • Figure 9 shows the correspondence between carrier identification, bandwidth, and relative frequency offset. For example, a carrier with a carrier identification of 4 has a corresponding bandwidth of 15 M and a frequency offset of 3.75 M with respect to the system. '
  • the bandwidth capability of the UE can be numbered. For example, if the system supports the six bandwidth capabilities of 1.25M, 2.5M, 5M, ⁇ , 15M, and 20M, you can use 000, 001, and 010 respectively. 011, 100, 101 to indicate; If you want to reduce the complexity of the system, for example, only support 5M, 10M, 15M, 20M, then you can use 00, 01, 10, 11 respectively; if you only support 10M, 20M , respectively, denoted by 0, 1 or alternatively, denoted by 00, 11 respectively, to enhance the reliability of detection without increasing the number of bits. After receiving the number information, the RRM of the eNodeB node searches for the corresponding bandwidth capability and allocates bandwidth resources for the UE that do not exceed its bandwidth capability.
  • the location of the RM data bandwidth of the eNodeB node determines a corresponding carrier frequency, for example, searches for a corresponding carrier identifier according to the bandwidth and the relative frequency offset, and determines the carrier according to the carrier identifier. frequency. 'then root Allocate bandwidth resources that do not exceed the bandwidth capacity according to the bandwidth size.
  • Figure 10 is a schematic diagram of resource allocation. For example, for UE7, downlink transmission may be performed at a bandwidth location shown in the figure, with resources not exceeding its bandwidth size, and the remaining bandwidth may be allocated to other users.

Abstract

La présente invention porte sur une méthode d'accès s'appliquant à des équipements utilisateurs (EU) dans un système de communication mobile où la capacité de largeur de bande de l'EU a une interaction avec le dispositif du côté réseau. Le dispositif du côté réseau alloue une ressource qui est mise en concordance avec la capacité de largeur de bande de l'EU par rapport à l'EU selon la capacité de largeur de bande de l'EU et permet à l'EU d'accéder au réseau. Cette invention s'adapte à l'accès des équipements utilisateurs ayant différentes largeurs de bande dans un système d'évolution à long terme.
PCT/CN2006/000319 2006-03-03 2006-03-03 Méthode d'accès s'appliquant à des équipements utilisateurs dans un système de communication mobile WO2007098641A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2006800134495A CN101164351B (zh) 2006-03-03 2006-03-03 一种移动通信系统中用户设备接入的方法
PCT/CN2006/000319 WO2007098641A1 (fr) 2006-03-03 2006-03-03 Méthode d'accès s'appliquant à des équipements utilisateurs dans un système de communication mobile

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PCT/CN2006/000319 WO2007098641A1 (fr) 2006-03-03 2006-03-03 Méthode d'accès s'appliquant à des équipements utilisateurs dans un système de communication mobile

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CN101977401A (zh) * 2010-10-27 2011-02-16 中兴通讯股份有限公司 一种用户终端的随机接入方法和系统
WO2011020269A1 (fr) * 2009-08-19 2011-02-24 中兴通讯股份有限公司 Procédé et dispositif d’accès aléatoire pour système d’évolution à long terme
CN102045865A (zh) * 2009-10-23 2011-05-04 华为技术有限公司 基站和用户终端之间的通信方法及相应设备
CN102238620A (zh) * 2010-04-21 2011-11-09 中兴通讯股份有限公司 一种对组成载波的处理方法及系统
WO2012136059A1 (fr) * 2011-04-02 2012-10-11 中兴通讯股份有限公司 Procédé de planification de ressource, équipement utilisateur et station de base
GB2506403A (en) * 2012-09-28 2014-04-02 Sony Corp Method and apparatus for communicating the mode of virtual channel operation of a terminal to a base station in an LTE system.
WO2016191983A1 (fr) * 2015-05-29 2016-12-08 华为技术有限公司 Procédé et dispositif de mappage de ressources
CN107645749A (zh) * 2016-07-21 2018-01-30 上海诺基亚贝尔股份有限公司 数据传输的方法和设备
CN110169110A (zh) * 2016-11-11 2019-08-23 株式会社Ntt都科摩 用户终端以及无线通信方法
CN110832819A (zh) * 2017-07-12 2020-02-21 高通股份有限公司 用于针对毫米波下行链路单载波波形的复用方案的技术和装置

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WO2011020269A1 (fr) * 2009-08-19 2011-02-24 中兴通讯股份有限公司 Procédé et dispositif d’accès aléatoire pour système d’évolution à long terme
CN102045865A (zh) * 2009-10-23 2011-05-04 华为技术有限公司 基站和用户终端之间的通信方法及相应设备
CN102238620A (zh) * 2010-04-21 2011-11-09 中兴通讯股份有限公司 一种对组成载波的处理方法及系统
WO2012055299A1 (fr) * 2010-10-27 2012-05-03 中兴通讯股份有限公司 Procédé et système d'accès aléatoire pour un équipement utilisateur
CN101977401A (zh) * 2010-10-27 2011-02-16 中兴通讯股份有限公司 一种用户终端的随机接入方法和系统
WO2012136059A1 (fr) * 2011-04-02 2012-10-11 中兴通讯股份有限公司 Procédé de planification de ressource, équipement utilisateur et station de base
CN102740485A (zh) * 2011-04-02 2012-10-17 中兴通讯股份有限公司 资源调度方法、用户设备和基站
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US11171753B2 (en) 2015-05-29 2021-11-09 Huawei Technologies Co., Ltd. Resource mapping for a user equipment in a communication system
WO2016191983A1 (fr) * 2015-05-29 2016-12-08 华为技术有限公司 Procédé et dispositif de mappage de ressources
CN107645749A (zh) * 2016-07-21 2018-01-30 上海诺基亚贝尔股份有限公司 数据传输的方法和设备
CN107645749B (zh) * 2016-07-21 2021-05-18 上海诺基亚贝尔股份有限公司 数据传输的方法和设备
CN110169110A (zh) * 2016-11-11 2019-08-23 株式会社Ntt都科摩 用户终端以及无线通信方法
CN110169110B (zh) * 2016-11-11 2023-05-30 株式会社Ntt都科摩 用户终端以及无线通信方法
CN110832819A (zh) * 2017-07-12 2020-02-21 高通股份有限公司 用于针对毫米波下行链路单载波波形的复用方案的技术和装置
CN110832819B (zh) * 2017-07-12 2022-05-13 高通股份有限公司 用于针对毫米波下行链路单载波波形的复用方案的技术和装置

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