WO2012041122A1 - 一种无线资源控制方法及系统 - Google Patents

一种无线资源控制方法及系统 Download PDF

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Publication number
WO2012041122A1
WO2012041122A1 PCT/CN2011/077878 CN2011077878W WO2012041122A1 WO 2012041122 A1 WO2012041122 A1 WO 2012041122A1 CN 2011077878 W CN2011077878 W CN 2011077878W WO 2012041122 A1 WO2012041122 A1 WO 2012041122A1
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WIPO (PCT)
Prior art keywords
user equipment
information
service
rrc connection
priority
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PCT/CN2011/077878
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English (en)
French (fr)
Inventor
戴谦
邓云
毛磊
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ZTE Corp
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ZTE Corp
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Priority to JP2013530545A priority Critical patent/JP5690405B2/ja
Priority to EP11828018.9A priority patent/EP2624656A4/en
Priority to US13/876,492 priority patent/US9432971B2/en
Publication of WO2012041122A1 publication Critical patent/WO2012041122A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/02Access restriction performed under specific conditions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a radio resource control method and system. Background technique
  • the third-generation mobile communication Long Term Evolution (LTE) system consists of an evolved Evolved Universal Terrestrial Radio Access Network (E-UTRAN), User Equipment (UE), and evolved.
  • the group consists of Evolved Packet Core (EPC).
  • the E-UTRAN is composed of an enhanced base station (eNB) of the access network element.
  • the eNB is connected to the terminal UE through the Uu interface, and is connected to the core network element, such as a Mobility Management Entity (MME), through the S1 interface.
  • MME Mobility Management Entity
  • the access network side has a multi-level access control processing mechanism for accessing the user equipment, so as to ensure that the network side does not overload due to excessive user equipment access.
  • the user equipment accesses the network side and needs to complete several processes as shown in Figure 1:
  • Random access procedure The user equipment completes synchronization with the network side through the process
  • RRC Radio Resource Control
  • Attach process Complete the acquisition, authentication process, and security setup of user device identification information.
  • the network side sets 15 Access Levels (ACs) for different call types.
  • the normal calls belong to AC0 ⁇ 9, and the emergency calls belong to AC10.
  • Other high-priority calls belong to AC11 ⁇ 15.
  • the network side sets a control factor for AC0 ⁇ 9, and sets the "No Prohibited" flag for AC10 and AC11 15 and broadcasts it to the user equipment to control the random access behavior of these call types.
  • the signaling interaction between the user equipment and the access network element is as shown in FIG. 2 and FIG. 3, and there are two procedures of connection establishment and connection rejection.
  • the network side can judge whether the user equipment's RRC connection establishment request is "accepted” or "rejected” according to its own data load capacity and signaling load capacity, and air interface load capability.
  • connection request initiated by the user equipment may be based on different types of services, and the priorities of the services may be different, in order to implement more flexible and efficient admission control, in the current RRC layer protocol, the user equipment is required to be in the RRC.
  • the connection establishment request (RRC Connection Request) carries the reason information of the connection establishment.
  • High Priority Access (high priority access, indicating that the user device initiated a high priority service class call),
  • M2M Machine to Machine communication
  • MTC Machine type communication in 3GPP, or MTC
  • M2M Machine to Machine
  • M2M is defined in a narrow sense as machine-to-machine communication. Broadly defined, it is a networked application and service centered on intelligent interaction of machine terminals. It is based on intelligent machine terminals and uses multiple communication methods as access means to provide customers with information solutions to meet customers' information needs in monitoring, command and dispatch, data collection and measurement.
  • M2M In the application of M2M, the business types are very wide, such as household meter reading, industrial production instrumentation automation, water quality monitoring, intelligent transportation and asset tracking, etc., M2M applications will enter all walks of life, thousands of households, and M2M business types also There will be tens of thousands, and the requirements for QoS (Quality of Service) for the network side and for operators will also be varied. The number of M2M user devices will also far exceed the current mobile phone terminals, which poses a huge pressure on the current and future wireless networks. Due to the large number of M2M user devices, 3Gpp currently proposes the concept of managing user devices in a group manner. In the context of M2M applications, how to protect the network and how to prevent network overload has become a primary problem.
  • the user equipment may perform access control on the random access procedure or the user equipment in the RRC layer during the process of establishing a connection with the network and completing the attachment.
  • the RRC connection establishment request is controlled, but the flexibility of the current control mechanism cannot meet the admission control of the high-density, multi-service user equipment.
  • the current statistics of operators show that the load of data services (such as Internet access, video calls, FTP downloads, etc.) in wireless communication has exceeded the load of voice services.
  • data services such as Internet access, video calls, FTP downloads, etc.
  • the voice service is the basis of the network operation, but according to the current In the protocol standard, when the user equipment initiates a voice call and a data service call, the connection establishment cause information in the RRC connection establishment request is all mo-Data, and the network side cannot distinguish between voice or data service, and thus flexible admission control cannot be performed.
  • the business model refers to the data transmission model when the user equipment and the network side exchange data.
  • the elements of the business model include: data interaction periodicity, data interaction frequency, data size, Data interaction direction (refer to the above data, or the following line data, or the uplink and downlink traffic are similar).
  • data interaction periodicity a periodicity of the business model
  • data interaction frequency a data interaction frequency of the business model
  • data size a configurable size of the business model.
  • Data interaction direction refer to the above data, or the following line data, or the uplink and downlink traffic are similar.
  • Taking smart meters as an example some power companies require each smart meter to report meter reading data every 5 minutes. Some power companies require each smart meter to report meter reading data every hour. Some power companies even only require intelligence. The meter reports the meter reading data once a day, and the traffic of each meter reading data is small.
  • Another example is a normal voice service, which can be called an extremely high frequency periodic small data interaction model.
  • the Internet service (usually clicking on a web page for several tens of seconds, the following line data is dominant, and the data traffic is large) can be called an intermediate frequency non-periodic big data downlink model.
  • the QoS requirements related to admission control include: Access delay tolerance, for example, some services are very sensitive to access delay (such as fire alarm, security, medical monitoring, etc.), Business is less sensitive to access latency (eg meter reading), The former mechanism is unable to distinguish between these differences.
  • Different services or user equipment also have different priorities. For example, financial, security, and medical-related services should have higher priority than ordinary services, and current mechanisms cannot be distinguished.
  • the present invention provides a radio resource control method and system, so that the network side can more accurately grasp the information of the user equipment, so as to ensure more flexible and accurate admission control on the network side.
  • the present invention provides a radio resource control method, including: in a process of establishing a radio resource control (RRC) connection, the user equipment sends an RRC connection setup request message to the base station, and carries the RRC connection setup request message in the RRC connection setup request message.
  • RRC radio resource control
  • the information for indicating the nature of the current access is selected by the user equipment from a list of RRC connection establishment reasons pre-agreed with the network side.
  • the above method further includes: the user equipment selects information indicating the nature of the current access from the RRC connection establishment cause list agreed in advance with the network side by:
  • the user equipment selects an RRC connection establishment cause that is consistent with the nature of the current access from the RRC connection establishment cause list, and uses an index corresponding to the selected RRC connection establishment cause as the information indicating the nature of the current access. Added in the RRC Connection Setup Request message.
  • Each RRC connection establishment cause in the RRC connection establishment cause list includes a combination of one or more of the following information:
  • Service type information type information of user equipment, group information of user equipment, priority information of user equipment, priority information of service, type information of service model, public land mobile network type information, access level information, and service Service quality requirement type information.
  • the service type information is information classified by call service;
  • the grouping information of the user equipment is a serial number of the user equipment group or an identifier of the user equipment grouping
  • the priority information of the user equipment is a priority sequence number of the user equipment pre-agreed by the network side and the user equipment, or a priority identifier of the user equipment;
  • the priority information of the service is a priority sequence number of the service pre-agreed by the network side and the user equipment, or a priority identifier of the service;
  • the type information of the service model is data communication model information of the service, and includes one of the following information. Combination of one or more types: data interaction periodicity, data interaction frequency, data volume size, and data interaction direction;
  • the public land mobile network type information includes one or more of the following information: whether the user equipment is identification information on its local public land mobile network (HPLMN), whether the user equipment is on its equivalent HPLMN, or not, Whether the user equipment is identification information on a PLMN in the preferred PLMN list included in the user identity module or the global user identity module, whether the user equipment is the identification information of the roaming user equipment, the identification information of the HPLMN of the user equipment, and the user Identification information of the equivalent HPLMN of the device;
  • HPLMN local public land mobile network
  • HPLMN public land mobile network
  • the access level information is an access level sequence number or an access level identifier agreed by the network side and the user equipment in advance;
  • the quality of service requirement type information of the service includes a combination of one or more of the following: access delay tolerance, guaranteed traffic, and allowed error rate.
  • the present invention further provides a radio resource control system, including: a user equipment, configured to: send an RRC connection setup request message to a base station in a process of establishing a radio resource control (RRC) connection,
  • RRC radio resource control
  • the RRC connection setup request message carries information indicating the nature of the current access
  • the base station is configured to determine whether to allow the user equipment to establish an RRC connection according to the information used to indicate the nature of the current access.
  • the user equipment is further configured to: before the sending the RRC connection setup request message to the base station, select the used to indicate the current access from the RRC connection establishment cause list agreed in advance with the network side. Nature of information.
  • the user equipment is configured to select information for indicating the nature of the current access by: selecting an RRC connection establishment reason that matches the nature of the current access from the RRC connection establishment cause list, and establishing the selected RRC connection.
  • the reason is added to the RRC Connection Setup Request message as the information indicating the nature of the current access.
  • Each RRC connection establishment cause in the RRC connection establishment cause list includes a combination of one or more of the following information:
  • Call service type information user equipment type information, user equipment group information, user equipment priority information, service priority information, service model type information, public land mobile network type information, access level information, and service
  • the quality of service requires type information.
  • the service type information is information classified by call service
  • the grouping information of the user equipment is a serial number of the user equipment group or an identifier of the user equipment grouping
  • the priority information of the user equipment is a priority sequence number of the user equipment agreed by the network side and the user equipment, or a priority identifier of the user equipment;
  • the priority information of the service is a priority sequence number of the service agreed by the network side and the user equipment in advance, or a priority identifier of the service;
  • the type information of the service model is data communication model information of the service, and includes a combination of one or more of the following information: data interaction periodicity, data interaction frequency, data volume size, and data interaction direction;
  • the public land mobile network type information includes one or more of the following information: whether the user equipment is identification information on its local public land mobile network (HPLMN), whether the user equipment is on its equivalent HPLMN, or not, Whether the user equipment is identification information on a PLMN in the preferred PLMN list included in the user identity module or the global user identity module, whether the user equipment is the identification information of the roaming user equipment, the identification information of the HPLMN of the user equipment, and the user Identification information of the equivalent HPLMN of the device;
  • HPLMN local public land mobile network
  • HPLMN public land mobile network
  • the access level information is an access level sequence number or an access level identifier agreed by the network side and the user equipment in advance;
  • the quality of service requirement type information of the service includes a combination of one or more of the following: access delay tolerance, guaranteed traffic, and allowed error rate.
  • the system is a long term evolution system or a global mobile communication system.
  • the present invention provides an admission control method and system that enables a user equipment to report more accurate information related to the type of call setup to assist the network side in performing more flexible and accurate admission control.
  • FIG. 1 is a schematic diagram of a process required for a user equipment to access a network side
  • FIG. 2 is a schematic diagram of a process of completing an RRC connection establishment process
  • FIG. 3 is a schematic diagram of a process of rejecting an RRC connection establishment process
  • FIG. 5 is a flowchart of an admission control method according to an embodiment of the present invention. Preferred embodiment of the invention
  • FIG. 4 is a flow chart of the admission control method of the present invention. As shown in FIG. 4, the method includes the following steps:
  • RRC radio resource control
  • the base station determines, according to the information used to indicate the nature of the current access, whether the user equipment is allowed to establish an RRC connection.
  • the user equipment selects the information indicating the nature of the current access from the RRC connection establishment cause list agreed in advance with the network side.
  • the RRC connection establishment cause of the secondary access nature the index corresponding to the RRC connection establishment cause is added as the information indicating the nature of the current access The RRC connection setup request message.
  • This embodiment is applicable to LTE systems or UMTS (Universal Mobile)
  • the user equipment accesses the network side and applies for the RRC connection establishment.
  • the following process is required. As shown in Figure 5, the following steps are included:
  • the user equipment and the base station establish synchronization.
  • the user equipment selects a corresponding RRC connection establishment cause according to the current connection establishment property, and includes an index corresponding to the RRC connection establishment cause in the RRC connection establishment request.
  • the user equipment sends an RRC connection establishment request to the base station.
  • the base station according to the load situation on the network side, combined with the RRC connection establishment cause of the user equipment, to determine whether the current connection request of the user equipment can be accepted, if yes, go to step S105, if not, then go to step S 106;
  • the base station If the base station agrees to establish an RRC connection, the user equipment feeds back an RRC connection setup message to the user equipment.
  • the RRC connection reject message is fed back to the user equipment.
  • steps S101, S103, S105 and S106 all conform to the existing mechanism.
  • step S102 the network side and the user equipment pre-approve an RRC connection establishment cause list, and the user equipment selects an RRC connection establishment reason in the list that conforms to the current access nature.
  • the setting of the RRC connection establishment cause in the RRC connection establishment cause list of the present invention may be one or a combination of the following information: call service type information, user equipment type information, user equipment group information, user Priority information of the device, priority information of the service, type information of the service model, PLMN (Public Land Mobile Network) type information, Access Class information, and QoS request type information of the service.
  • call service type information user equipment type information
  • user equipment group information user Priority information of the device
  • priority information of the service priority information of the service
  • type information of the service model PLMN (Public Land Mobile Network) type information
  • Access Class information Access Class information
  • QoS request type information of the service QoS request type information of the service.
  • the call service type information refers to information classified by call service, including one of the following or A variety of:
  • Calling or called voice calls calling or called video streaming calls, calling or called interactive voice calls, calling or called data calls, and calling or called signaling services.
  • the data call can be only a simple one, or can be further divided into more detailed categories, such as: http Internet service, FTP download service, meter reading business, monitoring business, intelligent transportation business, and asset tracking business.
  • the type information of the user equipment refers to information classified by the user equipment, including one or more of the following: an H2H user equipment, an M2M user equipment, and other types of user equipment.
  • the group information of the user equipment refers to the identifier of the user equipment group (Group), and includes: a serial number or identifier of the user equipment group (Group).
  • the Group-RNTI Radio Network Temporary Indicator
  • the group information of the user equipment can be directly used by the Group-RNTI, and can also be used.
  • a serial number pre-agreed with the network side, and the network side establishes the corresponding relationship between the serial number and the packet in advance.
  • the priority information of the user equipment refers to the priority of the user equipment agreed by the network side and the user equipment in advance, including: a priority number, or a priority identifier.
  • the priority can be 1 or more, which can be higher than the existing H2H device or lower than the existing H2H device.
  • H2H device refers to the RRC connection establishment reason already included in the existing protocol
  • it can include the following types:
  • Level 2 High priority equipment, H2H equipment and low priority equipment
  • Multi-level H2H equipment, low priority level 1 equipment, low priority level 2 equipment and low priority N level equipment (N is a positive integer);
  • H2H devices low priority level 1 devices, low priority level 2 devices, and low priority N devices (M and N are positive integers);
  • the correspondence between the specific device type and the device priority is advanced by the network side and the user equipment. Convention.
  • the priority information of the service refers to the service priority agreed by the network side and the user equipment in advance, and includes: a priority number or a priority identifier. Due to the introduction of smart phones and M2M devices, the types of wireless communication services have increased greatly. The reasons for the establishment of RRC connections in existing protocols include: Emergency (indicating that the user equipment initiates an emergency call), highPriorityAccess (indicating that the user equipment initiates a high priority) Service class call), mt-Access (indicating that the user equipment is requesting to establish a connection due to the called party), mo-Signalling (indicating that the user equipment is the originating caller signaling class call), mo-Data (indicating that the user equipment is the initiator Call the data class call).
  • Emergency indicating that the user equipment initiates an emergency call
  • highPriorityAccess indicating that the user equipment initiates a high priority
  • Service class call indicating that the user equipment is requesting to establish a connection due to the called party
  • mo-Signalling indicating that the user equipment is the originating call
  • H2H service refers to the RRC connection establishment reason already included in the existing protocol
  • H2H service refers to the RRC connection establishment reason already included in the existing protocol
  • Level 2 High priority service, H2H service, and low priority service
  • Multi-level H2H service, low priority level 1 service, low priority level 2 service and low priority N level service (N is a positive integer);
  • Another multi-level high priority level 1 business, high priority level 2 business high priority M level business,
  • H2H service low priority level 1 service, low priority level 2 service and low priority class N service (M and N are positive integers);
  • the correspondence between the specific service type and the service priority is pre-agreed by the network side and the user equipment.
  • the type information of the service model refers to a data communication model of the service, and includes a combination of one or more of the following features: data interaction periodicity (whether periodic data interaction), data interaction frequency, data volume size, And the direction of data interaction (refer to the above line data, or the following line data, or the uplink and downlink traffic is similar).
  • data interaction periodicity whether periodic data interaction
  • data interaction frequency whether periodic data interaction
  • data volume size data volume size
  • direction of data interaction refer to the above line data, or the following line data, or the uplink and downlink traffic is similar.
  • Period small data business model low frequency periodic small data Reporting, very low frequency periodic small data reporting, extremely high frequency periodic small data interaction model, and medium frequency aperiodic big data downlink model.
  • the correspondence between the specific service type and the service model is pre-determined by the network side and the user equipment.
  • the PLMN type information is the PLMN type information agreed by the network side and the user equipment in advance, including one or more of the following: whether the user equipment is on the HPLMN (home PLMN, local public land mobile network), the user equipment Whether the identification information on the equivalent HPLMN, whether the user equipment is in one of its SIM (Subscriber Identity Module) or USIM (Universal Subscriber Identity Module) The identification information on the PLMN, whether the user equipment is the identification information of the roaming user equipment, the identification information of the HPLMN of the user equipment, and the identifier information of the equivalent HPLMN of the user equipment;
  • SIM Subscriber Identity Module
  • USIM Universal Subscriber Identity Module
  • the access level information refers to an access level agreed by the network side and the user equipment in advance, including: an access level sequence number, or an access level identifier;
  • Access Class N (N is a positive number greater than or equal to 0).
  • the Qos request type information of the service includes a combination of one or more of the following requirements: access delay tolerance, guaranteed traffic, and allowed bit error rate.
  • access delay tolerance a combination of one or more of the following requirements: access delay tolerance, guaranteed traffic, and allowed bit error rate.
  • access delay tolerance a combination of one or more of the following requirements: access delay tolerance, guaranteed traffic, and allowed bit error rate.
  • the access delay can be set to: Simple Level 2: Sensitive to access delay and insensitive to access delay;
  • Multi-level High access delay sensitivity, access delay sensitivity, and low access latency sensitivity; can also be a combination of multiple Qos requirements, such as:
  • the "RRC connection establishment cause list may be a combination of one or more of the following information" means:
  • the RRC connection establishment cause list may be one or more of the above various feature information. kind, or a combination of one or more.
  • Table 1 is an example of an RRC connection establishment cause list (a combination of priority information and user equipment type information):
  • the admission control method and system of the present invention enables the user equipment to report more accurate information related to the type of call setup to assist the network side in performing more flexible and accurate admission control.

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Abstract

本发明提供一种无线资源控制方法及系统,该方法包括:在建立无线资源控制(RRC)连接过程中,用户设备向基站发送RRC连接建立请求消息,在所述RRC连接建立请求消息中携带用于指示本次接入性质的信息;以及所述基站根据所述用于指示本次接入性质的信息判断是否允许所述用户设备建立RRC连接。可使用户设备上报更准确的和呼叫建立类型相关的信息,以辅助网络侧进行更加灵活和精确的接纳控制。

Description

一种无线资源控制方法及系统
技术领域
本发明涉及无线通信技术领域,特别涉及一种无线资源控制方法及系统。 背景技术
第三代移动通信长期演进 ( Long Term Evolution, 简称 LTE )系统由演进 的通用陆地无线接入网 ( Evolved Universal Terrestrial Radio Access Network, 简称 E-UTRAN )、 用户设备(User Equipment, 简称 UE )、 演进的分组核心 网 ( Evolved Packet Core , 简称 EPC )组成。 其中, E-UTRAN由接入网网元 的增强型基站(eNB )组成。 eNB通过 Uu接口与终端 UE连接, 通过 S1接 口与核心网网元,如移动性管理实体( Mobility Management Entity,简称 MME ) 连接。
目前, 接入网侧对于用户设备的接入有多层次的接入控制处理机制, 以 保证网络侧不会因为过量的用户设备接入而发生过载等情况。
用户设备接入网络侧需要完成如图 1所示的几个过程:
随机接入过程: 用户设备通过该过程完成和网络侧的同步;
RRC ( Radio Resource Control, 无线资源控制)连接建立过程: 建立用户 设备和接入网网元的信令承载; 以及
附着(Attach )过程: 完成用户设备标识信息的获取、 鉴权过程以及安全 建立 ( Security Setup ) 。
在现有协议中, 网络侧为不同的呼叫类型设置了 15个接入级别 (Access Class, 简称 AC ) , 其中普通的呼叫均属于 AC0~9, 紧急呼叫属于 AC10, 其 他高优先级的呼叫属于 AC11~15。 网络侧为 AC0~9设置了一个控制因子, 为 AC10和 AC11 15设置了 "是否禁止" 的标识, 并广播给用户设备, 以控制 这些呼叫类型的随机接入行为。
在 RRC连接建立过程中,用户设备和接入网网元的信令交互如图 2和图 3所示, 有连接建立和连接拒绝两种流程。 网络侧通过这两个流程, 就能够根据自身的数据负载能力和信令负载能 力,以及空中接口负载能力等信息,对用户设备的 RRC连接建立请求做出 "接 受" 或 "拒绝" 的判断。
考虑到用户设备发起的连接请求可能是基于不同种类的业务, 而业务的 优先级可能是不同的,因此为了实现更灵活更高效的接纳控制,在目前的 RRC 层协议中, 要求用户设备在 RRC连接建立请求( RRC Connection Request ) 中携带连接建立的原因信息。
现有的连接建立原因信息 ( establishment Cause ) 包括下述内容:
Emergency (紧急, 说明用户设备发起的是紧急呼叫 ) ,
High Priority Access (高优先接入, 说明用户设备发起的是高优先的服务 类呼叫),
mt-Access (说明用户设备是由于被叫而申请建立连接 ) ,
mo-Signalling (说明用户设备是发起主叫信令类呼叫), 以及
mo-Data (说明用户设备是发起主叫数据类呼叫 ) 。
上述连接建立原因信息仅适用于 3GPP release 9及以前版本的用户设备。 随着物联网概念的发展, M2M ( Machine to Machine, 机器到机器)的通 讯 (在 3GPP中称之为机器类型通讯, 即 MTC )将逐步引入整个社会。 M2M 狭义上的定义是机器到机器的通信, 广义上的定义是以机器终端智能交互为 核心的、 网络化的应用与服务。 其基于智能机器终端, 以多种通信方式为接 入手段, 为客户提供的信息化解决方案, 用于满足客户对监控、 指挥调度、 数据釆集和测量等方面的信息化需求。
M2M的应用中, 业务类型非常广泛, 例如家庭抄表、 工业生产仪表自动 化、 水质监控、 智能交通以及资产追踪等等, M2M的应用将进入各行各业、 千家万户,而 M2M的业务类型也将是成千上万,对网络侧和对运营商的 QoS (服务质量, Quality of Service )要求也将是多种多样的。 M2M的用户设备 的数量也将会远远超过目前手机终端, 这就对当前乃至未来的无线网络构成 了业务负载的巨大压力。 由于 M2M用户设备数量巨大, 因此目前 3Gpp提出 了按照分组(Group )方式对用户设备进行管理的概念。 在 M2M应用的背景下, 如何保护网络 , 如何防止网络出现过载 , 目前 已成为首要解决的一个问题。
当前的协议中, 用户设备可以在随机接入在和网络建立连接, 并完成附 着的过程中 , 接入网网元可以对随机接入过程进行接入控制 , 也可以在 RRC 层对用户设备的 RRC连接建立请求进行控制,但目前的控制机制的灵活度已 经不能满足对高密度、 多业务的用户设备的接纳控制了。
例如: 目前运营商的统计结果显示, 无线通信中的数据业务(例如上网, 视频呼叫, FTP 下载等) 的负载已经超过了语音业务的负载。 当网络面临过 载压力时, 比较合适的做法是对数据业务进行一定的接纳限制, 而保证语音 业务的正常服务, 因为通常从运营商角度来说, 语音业务是网络运营的基础, 但是按照目前的协议标准 ,用户设备发起语音呼叫和数据业务呼叫时 ,在 RRC 连接建立请求中的连接建立原因信息都是 mo-Data, 网络侧无法区分是语音 还是数据业务, 因此无法进行灵活的接纳控制。
此外, 不同的 M2M的应用具有不同的业务模型, 业务模型是指用户设 备和网络侧交互数据时的数据传输模型, 表述业务模型的要素包括: 数据交 互周期性、 数据交互频度、 数据大小、 数据交互方向 (指以上行数据为主、 或以下行数据为主、 或上下行流量相近) 。 以智能电表为例, 有的电力公司 要求每台智能电表每 5分钟上报一次抄表数据, 有的电力公司要求每台智能 电表每 1小时上报一次抄表数据, 有的电力公司甚至只要求智能电表每天上 报一次抄表数据, 每次抄表数据的流量较小, 这就构成了 3种不同的业务模 型, 可以分别称为高频度周期性小数据上报、 低频度周期性小数据上报、 极 低频度周期性小数据上报。 又例如普通的语音业务, 可称为极高频度周期性 小数据交互模型。 又例如上网业务(通常几十秒点击一次网页, 以下行数据 为主, 且数据流量较大) , 可称为中频度非周期性大数据下传模型。 这些不 同的业务模型很明显对于网络的压力是不同的, 而目前的机制是无法区分这 些业务的模型的。 不同的业务还具有不同的 Qos要求, 与接纳控制比较相关的 Qos要求包 括: 接入延迟的容忍度, 例如有的业务对接入延迟非常敏感 (例如火警、 安 防、 医疗监护等业务) , 有的业务对接入延迟敏感度较低(例如抄表) , 目 前的机制是无法区分这些不同。
不同的业务或者用户设备还具有不同的优先级, 例如和金融、 安防、 医 疗相关的业务的优先级应当高于普通的业务, 而目前的机制无法区分。
这些缺陷在 M2M广泛应用后, 将变得更加严重。
发明内容
为了解决上述问题, 本发明提出一种无线资源控制方法及系统, 以使得 网络侧能够更准确的掌握用户设备的信息, 以保证网络侧进行更加灵活和精 确的接纳控制。
为了解决上述问题, 本发明提供一种无线资源控制方法, 包括: 在建立无线资源控制(RRC )连接过程中, 用户设备向基站发送 RRC连 接建立请求消息 ,在所述 RRC连接建立请求消息中携带用于指示本次接入性 质的信息; 以及
所述基站根据所述用于指示本次接入性质的信息判断是否允许所述用户 设备建立 RRC连接。
所述用于指示本次接入性质的信息是所述用户设备从与网络侧预先约定 的 RRC连接建立原因列表中选择的。
上述方法还包括:所述用户设备从与网络侧预先约定的 RRC连接建立原 因列表中通过如下方式选择指示本次接入性质的信息:
所述用户设备从所述 RRC 连接建立原因列表中选择符合本次接入性质 的 RRC连接建立原因, 将所选择的 RRC连接建立原因对应的索引作为所述 用于指示本次接入性质的信息添加在所述 RRC连接建立请求消息中。
所述 RRC连接建立原因列表中的每项 RRC连接建立原因包括以下信息 中的一种或者多种的组合:
业务类型信息、 用户设备的类型信息、 用户设备的分组信息、 用户设备 的优先级信息、 业务的优先级信息、 业务模型的类型信息、 公共陆地移动网 类型信息、 接入级别信息、 以及业务的服务质量要求类型信息。 所述业务类型信息为按呼叫业务分类的信息;
所述用户设备的分组信息为用户设备分组的序号或者用户设备分组的标 识;
所述用户设备的优先级信息为由网络侧和用户设备预先约定的用户设备 的优先级序号或者用户设备的优先级标识;
所述业务的优先级信息为由网络侧和用户设备预先约定的业务的优先级 序号或者业务的优先级标识; 所述业务模型的类型信息为业务的数据通讯模型信息, 包括下述信息的 一种或多种的组合: 数据交互周期性、 数据交互频度、 数据量大小、 和数据 交互方向;
所述公共陆地移动网类型信息包括以下信息的一种或多种: 用户设备是 否在其本地公共陆地移动网(HPLMN )上的标识信息、 用户设备是否在其等 效的 HPLMN上的标识信息、 用户设备是否在其用户身份模块或者全球用户 身份模块所包含的优选 PLMN列表中的一个 PLMN上的标识信息、用户设备 是否是漫游的用户设备的标识信息、 用户设备的 HPLMN的标识信息、 以及 用户设备的等效 HPLMN的标识信息;
所述接入级别信息为由网络侧和用户设备事先约定的接入级别序号或者 接入级别标识;
所述业务的服务质量要求类型信息包括下述信息的一种或多种的组合: 接入延迟的容忍度、 保证的流量和容许的误码率。
为了解决上述问题, 本发明还提供了一种无线资源控制系统, 包括: 用户设备, 其设置成: 在建立无线资源控制 (RRC )连接过程中, 向基 站发送 RRC连接建立请求消息, 在所述 RRC连接建立请求消息中携带用于 指示本次接入性质的信息; 以及, 基站, 其设置成根据所述用于指示本次接入性质的信息判断是否允许所 述用户设备建立 RRC连接。
所述用户设备还设置成: 在向基站发送 RRC连接建立请求消息之前, 从 与网络侧预先约定的 RRC 连接建立原因列表中选择所述用于指示本次接入 性质的信息。
所述用户设备是设置成通过如下方式选择用于指示本次接入性质的信 息: 从 RRC连接建立原因列表中选择符合本次接入性质的 RRC连接建立原 因,并将所选择的 RRC连接建立原因作为所述用于指示本次接入性质的信息 添加在所述 RRC连接建立请求消息中。
所述 RRC连接建立原因列表中的每项 RRC连接建立原因包括以下信息 中的一种或者多种的组合:
呼叫业务类型信息、 用户设备的类型信息、 用户设备的分组信息、 用户 设备的优先级信息、 业务的优先级信息、 业务模型的类型信息、 公共陆地移 动网类型信息、 接入级别信息、 以及业务的服务质量要求类型信息。
所述业务类型信息为按呼叫业务分类的信息;
所述用户设备的分组信息为用户设备分组的序号或者用户设备分组的标 识;
所述用户设备的优先级信息为由网络侧和用户设备事先约定的用户设备 的优先级序号或者用户设备的优先级标识;
所述业务的优先级信息为由网络侧和用户设备事先约定的业务的优先级 序号或者业务的优先级标识;
所述业务模型的类型信息为业务的数据通讯模型信息, 包括下述信息的 一种或多种的组合: 数据交互周期性、 数据交互频度、 数据量大小和数据交 互方向;
所述公共陆地移动网类型信息包括以下信息的一种或多种: 用户设备是 否在其本地公共陆地移动网(HPLMN )上的标识信息、 用户设备是否在其等 效的 HPLMN上的标识信息、 用户设备是否在其用户身份模块或者全球用户 身份模块所包含的优选 PLMN列表中的一个 PLMN上的标识信息、用户设备 是否是漫游的用户设备的标识信息、 用户设备的 HPLMN的标识信息、 以及 用户设备的等效 HPLMN的标识信息;
所述接入级别信息为由网络侧和用户设备事先约定的接入级别序号或者 接入级别标识; 所述业务的服务质量要求类型信息包括下述信息的一种或多种的组合: 接入延迟的容忍度、 保证的流量和容许的误码率。
所述系统为长期演进系统或环球移动通信系统。
有鉴于此, 本发明提供一种接纳控制方法及系统, 可使用户设备上报更 准确的和呼叫建立类型相关的信息, 以辅助网络侧进行更加灵活和精确的接 纳控制。 附图概述
图 1为用户设备接入网络侧需要完成的流程示意图;
图 2为 RRC连接建立过程完成的流程示意图;
图 3为 RRC连接建立过程拒绝的流程示意图;
图 4为本发明的接纳控制方法的流程图;
图 5为本发明实施例的接纳控制方法的流程图。 本发明的较佳实施方式
图 4为本发明的接纳控制方法的流程图, 如图 4所示, 包括步骤:
S10、 在用户设备和网络侧建立无线资源控制(RRC )连接过程中, 用户 设备向基站发送的 RRC连接建立请求消息,携带用于指示本次接入性质的信 息, 作为 RRC连接建立原因;
S20、基站根据所述用于指示本次接入性质的信息判断是否允许所述的用 户设备建立 RRC连接。
进一步地, 所述用户设备向基站发送 RRC连接建立请求消息之前, 从与 网络侧预先约定的 RRC 连接建立原因列表中选择所述用于指示本次接入性 质的信息, 具体地, 选择符合本次接入性质的 RRC连接建立原因, 将所述 RRC连接建立原因对应的索引作为所述用于指示本次接入性质的信息添加在 所述 RRC连接建立请求消息中。
为使本发明的目的、 技术方案和优点更加清楚明白, 以下举实施例并参 照附图, 对本发明进一步详细说明。
本实施例适用 于 LTE 系 统或者 UMTS ( Universal Mobile
Telecommunications System, 环球移动通信系统)。 用户设备接入网络侧, 申 请 RRC连接建立, 需要完成如下流程, 如图 5所示, 包括下面步骤:
5101、 用户设备和基站建立同步;
5102、用户设备根据本次连接建立性质,选择一个对应的 RRC连接建立 原因, 将所述 RRC连接建立原因对应的索引包含在 RRC连接建立请求中;
5103、 用户设备向基站发送 RRC连接建立请求;
5104、基站根据网络侧的负载情况,结合用户设备的 RRC连接建立原因, 判断是否可以接纳该用户设备的本次连接请求, 若可以, 则转步骤 S105, 若 不可以, 则转步骤 S 106;
S105、 若基站同意用户设备建立 RRC连接, 则向用户设备反馈 RRC连 接设置 ( RRC connection setup ) 消息;
S106、 若基站不同意用户设备建立 RRC连接, 则向用户设备反馈 RRC 连接拒绝 ( RRC connection reject ) 消息。
其中, 步骤 S101、 S103、 S105和 S106均符合现有机制。
在步骤 S102中, 由网络侧和用户设备预先约定一个 RRC连接建立原因 列表, 用户设备在该列表中选择符合本次接入性质的 RRC连接建立原因。
本发明的 RRC连接建立原因列表中 RRC连接建立原因的设置可以是下 述信息的一种或者多种的组合: 呼叫业务类型信息、 用户设备的类型信息、 用户设备的分组( Group )信息、用户设备的优先级信息、业务的优先级信息、 业务模型的类型信息、 PLMN ( Public Land Mobile Network,公共陆地移动网 ) 类型信息、 接入级别 (Access Class )信息、 以及业务的 Qos要求类型信息。
所述呼叫业务类型信息是指按呼叫业务分类的信息, 包括以下的一种或 者多种:
主叫或者被叫的语音呼叫、 主叫或者被叫的视频流呼叫、 主叫或者被叫 的互动语音呼叫、 主叫或者被叫的数据呼叫、 以及主叫或者被叫的信令业务 等。
其中, 数据呼叫可以只有简单的一类, 也可以进一步分成更细的种类, 例如: http上网业务、 FTP下载业务、 抄表业务、 监控业务、 智能交通业务、 和资产追踪业务等。
所述用户设备的类型信息是指按用户设备分类的信息, 包括以下的一种 或者多种: H2H用户设备, M2M用户设备, 和其他类型用户设备。
所述用户设备的分组信息是指用户设备分组(Group )的标识, 包括: 用 户设备分组( Group ) 的序号或者标识。 根据目前分组( Group ) 的机制, 分 组标识 Group-RNTI ( Radio Network Temporary Indicator, 无线网络临时标识) 已经在 3gpp 会议上提出, 因此所述用户设备的分组信息可以直接使用 Group-RNTI, 也可以使用和网络侧预先约定的一个序号, 网络侧事先建立该 序号和分组的——对应关系。
所述用户设备的优先级信息是指网络侧和用户设备事先约定的用户设备 的优先级, 包括: 优先级的序号、 或者优先级标识。 优先级可以是 1级或者 多级, 可以高于现有的 H2H设备, 也可以低于现有的 H2H设备。 例如: 以 现有的 H2H设备为基准(下述的 "H2H设备"指现有协议中已经包括的 RRC 连接建立原因) , 可以包括下面的种类:
简单的 1级: H2H设备和低优先级设备(相对于 H2H设备) ; 或者
2级: 高优先级设备、 H2H设备和低优先级设备; 或者
多级: H2H设备、 低优先 1级设备、 低优先 2级设备 和低优先 N 级设备(N是正整数) ;
另一种多级: 高优先 1级设备、 高优先 2级设备 高优先 M级设备、
H2H设备、 低优先 1级设备、 低优先 2级设备 和低优先 N级设备 ( M 和 N是正整数) ;
具体的设备类型和设备优先级之间的对应关系由网络侧和用户设备预先 约定。
所述业务的优先级信息是指网络侧和用户设备事先约定的业务优先级, 包括: 优先级的序号或者优先级标识。 由于智能手机和 M2M设备的引入, 无线通讯的业务种类大大增加, 现有协议中的 RRC 连接建立原因包括: Emergency (说明用户设备发起的是紧急呼叫), highPriorityAccess (说明用户 设备发起的是高优先的服务类呼叫), mt-Access (说明用户设备是由于被叫 而申请建立连接) , mo-Signalling (说明用户设备是发起主叫信令类呼叫), mo-Data (说明用户设备是发起主叫数据类呼叫 ) 。
除此之外, 还可以引入新的业务优先级, 例如(下述的 "H2H业务" 指 现有协议中已经包括的 RRC连接建立原因) , 可以包括下面种类:
简单的 1级: H2H业务和低优先级业务(相对于 H2H设备) ; 或者
2级: 高优先级业务、 H2H业务、 和低优先级业务; 或者
多级: H2H业务、 低优先 1级业务、 低优先 2级业务 和低优先 N 级业务(N是正整数) ;
另一种多级: 高优先 1级业务、 高优先 2级业务 高优先 M级业务、
H2H业务、 低优先 1级业务、 低优先 2级业务 和低优先 N级业务(M 和 N是正整数) ;
具体的业务类型和业务优先级之间的对应关系由网络侧和用户设备预先 约定。
所述业务模型的类型信息是指业务的数据通讯模型, 包括下述特征的一 种或多种的组合: 数据交互周期性(是否是周期性数据交互) 、 数据交互频 度、 数据量大小、 和数据交互方向(指以上行数据为主、 或以下行数据为主、 或上下行流量相近) 。 例如:
只包括简单的一种特征的信息: 小数据业务模型、 或者高频度业务模型、 或者周期性业务模型;
包括多种特征的信息: 周期性小数据业务模型、 低频度周期性小数据上 报、 极低频度周期性小数据上报、 极高频度周期性小数据交互模型、 和中频 度非周期性大数据下传模型等。
具体的业务类型和业务模型之间的对应关系由网络侧和用户设备预先约 定。
所述 PLMN类型信息为网络侧和用户设备事先约定的 PLMN类型信息, 包括以下的一种或多种: 用户设备是否在其 HPLMN ( home PLMN, 本地公共 陆地移动网)上的标识信息、 用户设备是否在其等效的 HPLMN上的标识信 息、 用户设备是否在其 SIM ( Subscriber Identity Module, 用户身份模块)或 者 USIM ( Universal Subscriber Identity Module, 全球用户身份模块)所包含 的优选 PLMN列表中的某个 PLMN上的标识信息、用户设备是否是漫游的用 户设备的标识信息、 用户设备的 HPLMN的标识信息、 以及用户设备的等效 HPLMN的标识信息;
所述接入级别 ( Access Class )信息是指网络侧和用户设备事先约定的接 入级别, 包括: 接入级别序号、 或者接入级别标识;
例如: Access Class N ( N为大于等于 0的正数 ) 。
所述业务的 Qos要求类型信息包括下述要求的一种或多种的组合: 接入 延迟的容忍度、 保证的流量和容许的误码率。 以接入延迟为例, 可以设置为: 简单的 2级: 对接入延迟敏感、 和对接入延迟不敏感;
多级: 接入延迟敏感度高、 接入延迟敏感度中、 和接入延迟敏感度低; 也可以是多种 Qos要求的组合, 例如:
接入延迟敏感度高 +低保证流量 +低误码率要求; 或者
接入延迟敏感度中 +高保证流量 +低误码率要求。
上述 Qos要求也可以分为更细的级数。
所述的 "RRC连接建立原因列表的设置可以是下述信息的一种或者多种 的组合" 是指: RRC连接建立原因列表可以是上述的各种特征信息一种或多 种, 或者一种或者多种的合并。
例如, 表 1是 RRC连接建立原因列表的一实例(是优先级信息和用户设 备类型信息的组合) :
还可以有其他的组合方式, 来构成新增的 RRC连接建立原因。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 所述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地, 上述实施例中的各模块 /单元可以釆用 硬件的形式实现, 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。
以上所述仅为本发明的优选实施例而已, 并非用于限定本发明的保护范 围。 根据本发明的发明内容, 还可有其他多种实施例, 在不背离本发明精神 改变和变形, 凡在本发明的精神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。
工业实用性
与现有技术相比, 本发明的接纳控制方法及系统可使用户设备上报更准 确的和呼叫建立类型相关的信息, 以辅助网络侧进行更加灵活和精确的接纳 控制。

Claims

权 利 要 求 书
1、 一种无线资源控制方法, 包括:
在建立无线资源控制(RRC )连接过程中, 用户设备向基站发送 RRC连 接建立请求消息 ,在所述 RRC连接建立请求消息中携带用于指示本次接入性 质的信息; 以及
所述基站根据所述用于指示本次接入性质的信息判断是否允许所述用户 设备建立 RRC连接。
2、 如权利要求 1所述的方法, 其中,
所述用于指示本次接入性质的信息是所述用户设备从与网络侧预先约定 的 RRC连接建立原因列表中选择的。
3、 如权利要求 2所述的方法, 还包括: 所述用户设备从与网络侧预先约 定的 RRC 连接建立原因列表中通过如下方式选择所述用于指示本次接入性 质的信息:
所述用户设备从所述 RRC 连接建立原因列表中选择符合本次接入性质 的 RRC连接建立原因, 并将所选择的 RRC连接建立原因对应的索引作为所 述用于指示本次接入性质的信息添加在所述 RRC连接建立请求消息中。
4、 如权利要求 2或 3所述的方法, 其中, 所述 RRC连接建立原因列表 中的每项 RRC连接建立原因包括以下信息中的一种或者多种的组合:
业务类型信息、 用户设备的类型信息、 用户设备的分组信息、 用户设备 的优先级信息、 业务的优先级信息、 业务模型的类型信息、 公共陆地移动网 类型信息、 接入级别信息、 以及业务的服务质量要求类型信息。
5、 如权利要求 4所述的方法, 其中,
所述业务类型信息为按呼叫业务分类的信息;
所述用户设备的分组信息为用户设备分组的序号或者用户设备分组的标 识;
所述用户设备的优先级信息为由网络侧和用户设备预先约定的用户设备 的优先级序号或者用户设备的优先级标识;
所述业务的优先级信息为由网络侧和用户设备预先约定的业务的优先级 序号或者业务的优先级标识;
所述业务模型的类型信息为业务的数据通讯模型信息, 包括下述信息的 一种或多种的组合: 数据交互周期性、 数据交互频度、 数据量大小、 以及数 据交互方向;
所述公共陆地移动网类型信息包括以下信息的一种或多种: 用户设备是 否在其本地公共陆地移动网(HPLMN )上的标识信息、 用户设备是否在其等 效的 HPLMN上的标识信息、 用户设备是否在其用户身份模块或者全球用户 身份模块所包含的优选 PLMN列表中的一个 PLMN上的标识信息、用户设备 是否是漫游的用户设备的标识信息、 用户设备的 HPLMN的标识信息、 以及 用户设备的等效 HPLMN的标识信息;
所述接入级别信息为由网络侧和用户设备事先约定的接入级别序号或者 接入级别标识;
所述业务的服务质量要求类型信息包括下述信息的一种或多种的组合: 接入延迟的容忍度、 保证的流量、 和容许的误码率。
6、 一种无线资源控制系统, 包括:
用户设备, 其设置成: 在建立无线资源控制 (RRC )连接过程中, 向基 站发送 RRC连接建立请求消息, 在所述 RRC连接建立请求消息中携带用于 指示本次接入性质的信息; 以及
基站, 其设置成根据所述用于指示本次接入性质的信息判断是否允许所 述用户设备建立 RRC连接。
7、 如权利要求 6所述的系统, 其中,
所述用户设备还设置成: 在向基站发送 RRC连接建立请求消息之前, 从 与网络侧预先约定的 RRC 连接建立原因列表中选择所述用于指示本次接入 性质的信息。
8、 如权利要求 7所述的系统, 其中,
所述用户设备是设置成通过如下方式选择所述用于指示本次接入性质的 信息: 从 RRC连接建立原因列表中选择符合本次接入性质的 RRC连接建立 原因,将所选择的 RRC连接建立原因作为所述用于指示本次接入性质的信息 添加在所述 RRC连接建立请求消息中。
9、 如权利要求 7或 8所述的系统, 其中, 所述 RRC连接建立原因列表 中的每项 RRC连接建立原因包括以下信息中的一种或者多种的组合:
呼叫业务类型信息、 用户设备的类型信息、 用户设备的分组信息、 用户 设备的优先级信息、 业务的优先级信息、 业务模型的类型信息、 公共陆地移 动网类型信息、 接入级别信息、 以及业务的服务质量要求类型信息。
10、 如权利要求 9所述的系统, 其中,
所述业务类型信息为按呼叫业务分类的信息;
所述用户设备的分组信息为用户设备分组的序号或者用户设备分组的标 识;
所述用户设备的优先级信息为由网络侧和用户设备事先约定的用户设备 的优先级序号或者用户设备的优先级标识;
所述业务的优先级信息为由网络侧和用户设备事先约定的业务的优先级 序号或者业务的优先级标识;
所述业务模型的类型信息为业务的数据通讯模型信息, 包括下述信息的 一种或多种的组合: 数据交互周期性、 数据交互频度、 数据量大小、 以及数 据交互方向;
所述公共陆地移动网类型信息包括以下信息的一种或多种: 用户设备是 否在其本地公共陆地移动网(HPLMN )上的标识信息、 用户设备是否在其等 效的 HPLMN上的标识信息、 用户设备是否在其用户身份模块或者全球用户 身份模块所包含的优选 PLMN列表中的一个个 PLMN上的标识信息、用户设 备是否是漫游的用户设备的标识信息、 用户设备的 HPLMN的标识信息、 以 及用户设备的等效 HPLMN的标识信息;
所述接入级别信息为由网络侧和用户设备事先约定的接入级别序号或者 接入级别标识;
所述业务的服务质量要求类型信息包括下述信息的一种或多种的组合: 接入延迟的容忍度、 保证的流量、 和容许的误码率。
11、 如权利要求 6-8任一项所述的系统, 其中,
所述系统为长期演进系统或环球移动通信系统。
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