WO2012097589A1 - 一种终端接入方法及装置 - Google Patents

一种终端接入方法及装置 Download PDF

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Publication number
WO2012097589A1
WO2012097589A1 PCT/CN2011/078521 CN2011078521W WO2012097589A1 WO 2012097589 A1 WO2012097589 A1 WO 2012097589A1 CN 2011078521 W CN2011078521 W CN 2011078521W WO 2012097589 A1 WO2012097589 A1 WO 2012097589A1
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Prior art keywords
terminal
access
eab
parameter
level
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PCT/CN2011/078521
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English (en)
French (fr)
Inventor
毛磊
李勉
邓云
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ZTE Corp
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ZTE Corp
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Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to JP2013549696A priority Critical patent/JP5758503B2/ja
Priority to KR1020137019946A priority patent/KR101529806B1/ko
Priority to US13/980,417 priority patent/US9210650B2/en
Priority to EP11856536.5A priority patent/EP2654346B1/en
Publication of WO2012097589A1 publication Critical patent/WO2012097589A1/zh
Anticipated expiration legal-status Critical
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • H04W48/06—Access restriction performed under specific conditions based on traffic conditions

Definitions

  • the present invention relates to a machine type communication (MTC) technology, and more particularly to a terminal access method and apparatus.
  • MTC machine type communication
  • H2H communication refers to communication between people. By communicating with the operation of the device, the existing wireless communication technology is developed based on H2H communication. In H2H communication, people use The H2H device communicates with the user equipment (UE, User Equipment) in the normal sense.
  • UE User Equipment
  • M2M Machine to Machine
  • M2M technology is based on intelligent machine terminals and provides access to a variety of communication methods to provide customers with information solutions to meet customer information needs for monitoring, command and dispatch, data collection and measurement.
  • M2M technology breaks through the space-time constraints and geographical barriers of traditional communication methods, freeing enterprises and the public from cable shackles, allowing customers to control costs more effectively, reduce installation costs and is simple to use. Convenience.
  • the growing demand is driving M2M to move forward. Contrary to the continuous growth of information processing capabilities and network bandwidth, the means of information acquisition is far behind, and M2M satisfies this demand well.
  • M2M technology Through M2M technology, the external environment can be monitored in real time to realize large-scale and automated information. collection. Therefore, M2M can be widely used in industrial applications, home applications, personal applications, and the like. Industry applications such as traffic monitoring, warning systems, marine rescue, vending machines, paying for cars, home applications such as automatic meter reading, temperature control, etc., personal applications such as life detection, remote diagnosis, etc.
  • the communication objects of M2M are machine-to-machine and human-to-machine. Number between one or more machines According to communication, it is defined as Machine Type Communication (MTC). In this case, human-computer interaction is less needed.
  • MTC Machine Type Communication
  • the machine participating in the MTC is defined as an MTC device (MD, MTC device).
  • MD MTC device
  • MTC device is a terminal of the MTC user and can communicate with the MTC device and the MTC server through a Public Land Mobile Network (PLMN) network.
  • PLMN Public Land Mobile Network
  • M2M application requirements and have no impact on ordinary UEs in existing systems.
  • MTC devices have a large number of devices, each with a small amount of data, a large transmission interval, and a relatively fixed location.
  • H2H devices the number of common UEs, that is, H2H devices
  • the widespread application of MTC devices is likely to overload the network, such as when a cell suddenly has a power outage, when the power is restored, many MTCs.
  • the device may attempt to access the network at the same time, which will cause the network to be overloaded.
  • the overload control of the Long Term Evolution (LTE) system is divided into two levels: overload control of the access network and overload control of the core network.
  • the overload control of the access network is only for the load of the evolved base station (eNB). If the access network is not overloaded, the request information of the terminal is sent to the core network. If the core network is overloaded, the core network replies with a rejection message to the terminal, and the terminal exits the system, and the previously established signaling link is released.
  • eNB evolved base station
  • the terminal access system can be controlled by the Access Class Barring (ACB) mechanism.
  • ACB Access Class Barring
  • the operator defines the terminal classification as 16 access levels (AC, Access Class), where
  • AC0-9 belongs to the common level and is randomly assigned to the terminal; AC10 indicates emergency call (will not be configured to the terminal); AC11 is used for network operation; AC12 is for security service; AC13 is for public service category (such as water and gas supplier); AC14 indicates Emergency business; AC15 represents operator staff.
  • a terminal can be configured as one of the AC0-9 levels and one or more of the AC11-15s. These configuration information is stored in the Identity Management Module (SIM) card.
  • SIM Identity Management Module
  • ACB parameters are broadcast in system messages, which can be used for emergency calls.
  • Emergency call terminal-initiated signaling call (MO-signling), terminal-initiated data call (MO-data), multimedia language (MMTEL-Voice) and multimedia video (MMTEL-Video) to perform ACB control.
  • the network will configure a barring factor (BarringFactor) and a barring time (BarringTime).
  • BarringFactor barring factor
  • BarringTime barring time
  • the terminal itself generates a random number of 0-1. If it is larger than BarringFactor, it is not allowed to access again in [(0.7+ 0.6 * rand) * ac-BarringTime].
  • the network can be configured separately to prohibit access of users of this category. Where rand is a random number generated by the terminal itself, and ac-BarringTime is a forbidden time pre-configured by the system.
  • the UE If the UE is configured with AC11-15 and AC0-9, for MO data/signalling, first determine whether the prohibition of the specific level terminal (BarringForSpecialAC) corresponding to AC11-15 is prohibited (bar), if not, directly access, otherwise according to AC0- The parameters of 9 are ACB controlled.
  • the emergency call first determine whether the forbidden emergency call (ac-BarringForEmergency) configured in SIB2 is forbidden, if not, directly access; if it is forbidden, determine the ac in the data service (ac-BarringForMO-Data) that is prohibited by the terminal. - Whether the AC corresponding to BarringForSpecialAC is forbidden. If it is forbidden, the emergency call cannot be initiated. Otherwise, it is allowed.
  • the ACB mechanism is a good solution to prevent system impact caused by simultaneous access of a large number of devices. It can control the time and frequency of the terminal accessing the system and slow down a large number of terminals from the source. System impact. Moreover, since MTC devices generally have lower priority and are less sensitive to delay, a stricter access control strategy can be adopted.
  • EAB Enhanced Access Restriction
  • Class 20-29 indicates Extended Access Class (EAC)
  • Class 30-39 indicates Extended Access Class Low Priority (EAC Low Priority)
  • EAC Low Priority Extended Access Class Low Priority
  • the network side can broadcast two different sets of parameters; UEs configured with EAC or EAC Low Priority will ignore the broadcast information related to AC0 ⁇ 9 and AC11 ⁇ 15.
  • Another way is to not configure the number of AC levels, and additionally configure a set of parameters for the new service type (or terminal type), and control according to the existing AC level: the terminal configures a low access priority (low access priority);
  • the network side broadcasts the existing ACB parameters and broadcasts 10 new EACB bits (for 'normal classes' 0 to 9 information, that is, 10 bits configured in the EACB parameter, where bitl points to the user of AC level 0, and bit 2 points to AC level 1.
  • the user...bitlO points to the user of AC level 9.
  • EACB bits for 'normal classes' 0 to 9 information, 0 means allowed (not barred ), 1 means prohibited (barred ); like first bit If the UE applicable to the EAB is configured with AC0-9, the ACB parameters corresponding to AC0-9 are ignored, and the EAB parameters are used; if applicable to EAB, If the UE is configured to the AC11-15 level, the EAB parameters are ignored, and the ACB parameters corresponding to AC11-15 are used.
  • the EAB broadcast information consists of: EAB0-9bits and EAB applicable UE class another 'J. If the UE configured with EAB is initiated Emergency call, the UE ignores the EAB information. If the network does not broadcast information EAB, the UE uses ACB parameter determination.
  • EAB enumerated type
  • barred barred
  • the EAB parameter is an enumerated type (Eunm)
  • Unm enumerated type
  • the EAB of one/some ACs is directly prohibited from being applied to the terminal or directly allowing some ACs.
  • the EAB is applicable to the terminal. If the EAB-applicable terminal only performs the access time control according to the EAB parameters and does not follow the existing ACB mechanism, it is obviously unreasonable to allow the EAB to apply the terminal with higher priority once the category is allowed to access. Because EAB-applicable terminals are generally services or terminals that are not sensitive to delay or have lower priority. Category.
  • the AC5 class MTC terminals corresponding to the EAB are allowed to access, and then the terminals directly access the system; and the normal AC5 class terminals also need to calculate the probability according to the ACB parameters, and may not be allowed to access.
  • the terminal corresponding to EAB is higher in priority than the ordinary terminal. Such terminal access is unreasonable, and it will further cause system impact. Summary of the invention
  • the main object of the present invention is to provide a terminal access method and device, which can reasonably access the terminal and reduce the impact on the system caused by simultaneous access of a large number of devices.
  • a terminal access method includes: determining, according to an enhanced access limit configured by the system, an AC value of the EAB parameter, and determining whether the AC level terminal is allowed to access,
  • the access permission judgment is performed according to the ordinary ACB parameter broadcasted by the existing system;
  • the prohibition time for re-accessing the system is calculated according to the prohibition time parameter configured by the system.
  • the method further includes: determining that the terminal is configured with a special access level in the AC11-15, and the value of the terminal corresponding to the special access level AC is forbidden; or
  • the terminal is not configured with one or more levels of the special access level AC11-15.
  • the terminal determines whether one of the special access levels AC11-15 is configured with one or more levels. If configured, the terminal performs access judgment according to the specific parameters of the AC11-15:
  • the terminal If the parameter of the special access level AC11-15 is configured with a special AC corresponding to the terminal If the value of the level is not barred, the terminal is allowed to access the system directly, and the process is terminated. If the parameter of the special access level AC11-15 is configured, the value of the special AC level corresponding to the terminal is barred. And determining that the terminal is configured with one or more levels of the special access level AC11-15, and the value of the special AC level corresponding to the terminal is forbidden, and the EAB parameter is determined according to the enhanced access limit configured by the system. The corresponding AC value, the terminal performs an access judgment to determine whether to allow the AC level terminal to access.
  • a terminal access device includes at least an ACB processing module and an EAB processing module, wherein the ACB processing module sends a processing notification to the EAB and performs ACB processing;
  • the EAB processing module receives the processing notification from the ACB processing module, and determines whether the AC level terminal is allowed to access according to the value of the corresponding AC in the EAB parameter configured by the system: when the value of the corresponding AC in the EAB parameter is barred, Determining that the cell does not allow the terminal to access, and calculating the prohibition time for re-accessing the system according to the prohibited time parameter configured by the system;
  • the ACB processing module is further configured to:
  • the terminal determines whether one of the special access levels AC11-15 is configured with one or more levels. In the configuration, the terminal performs access judgment according to the specific access level AC11-15 specific parameters: In AC11-15
  • the specific parameter configuration is that when the value of the special AC level corresponding to the terminal is not barred, the terminal is allowed to directly access the system, and no processing notification or sending notification is sent to the EAB; the specific parameter configuration in the AC11-15 is configured.
  • the terminal If the value of the special AC level of the terminal is barred, it is determined that the terminal is configured with the AC11-15 level in the ACB mechanism, and the value of the AC corresponding to the terminal is forbidden, and the processing notification is sent to the EAB; or, The terminal does not configure one or more levels in the AC 11-15, and sends a processing notification to the EAB.
  • the ACB processing module is further configured to perform an ACB determining process when the EAB processing module determines that the terminal allows access.
  • the device is disposed in a terminal, and the terminal is a terminal to which the EAB is applicable.
  • the method of the present invention combines the EAB with the existing ACB mechanism to solve a large number of impacts on the system that may be caused when a service or a terminal with low latency or low priority is simultaneously connected to the network;
  • the terminal to which the EAB is applied has appropriate control, which avoids the direct access of the terminal to the system without any scruples, and shortens the process of delaying system congestion in an emergency.
  • FIG. 1 is a flowchart of a method for accessing a terminal according to the present invention
  • FIG. 2 is a schematic structural diagram of a terminal access device of the present invention. detailed description
  • FIG. 1 is a flowchart of a terminal access method according to the present invention.
  • the system simultaneously configures ACB parameters and EAB parameters, as shown in FIG.
  • Step 100 Determine the level of the special access level AC11-15 of the terminal, and the value of the terminal corresponding to the special access level AC is forbidden, or the terminal is not configured with one or more of the special access levels AC11-15. grade.
  • the terminal in the present invention is a terminal to which the EAB is applied.
  • This step specifically includes: The terminal to which the EAB is applied determines whether one or more of the special access levels AC11-15 are configured. If configured, the terminal performs access judgment according to the specific parameters of the AC11-15: if the AC11 -15 specific parameters are configured for the terminal corresponding AC If the value is not barred, then the terminal is allowed to access the system directly, and the process is terminated. If the specific parameter of the AC11-15 is configured as the barred value of the AC corresponding to the terminal, it is determined that the terminal is configured with the ACB mechanism. The AC11-15 level, and the value of the AC corresponding to the terminal is forbidden to access, and the next step is entered. If the terminal does not have one or more levels of AC11-15, go directly to step 101.
  • Step 101 Determine whether the AC level terminal is allowed to access according to the value of the corresponding AC in the EAB parameter configured by the system.
  • the step specifically includes: if it is determined that the corresponding AC is barred according to the EAB parameter, determining that the cell does not allow the terminal to access, and calculating, according to the forbidden time parameter configured by the system, indicating that the access system is not allowed to access again for a period of time.
  • the prohibition time of the system ends the process;
  • the access permission judgment is performed according to the normal ACB parameter broadcasted by the existing system.
  • the specific judgment that is, the use process of the parameters belongs to the prior art, such as randomly generating a random number compared with the BarringFactor, less than accessing, etc.; or configuring the permission or prohibition directly in the parameter, and the specific implementation thereof belongs to those skilled in the art. The well-known technology will not be described again.
  • the method of the present invention associates the EAB with the common ACB mechanism, and solves a large number of impacts on the system that may be caused when the services or terminals with less delay or lower priority are simultaneously connected to the network;
  • the terminal applicable to the EAB that is, the terminal with lower priority and less sensitive to delay
  • has appropriate control which avoids the direct access of the terminal to the system without any scruples, and shortens the delay in the burst. The process of system congestion during an event.
  • FIG. 2 is a schematic structural diagram of a terminal access device according to the present invention. As shown in FIG. 2, at least an ACB processing module and an EAB processing module are included, where
  • An ACB processing module for transmitting processing notifications to the EAB and performing normal (existing) ACB processing
  • the EAB processing module receives the processing notification from the ACB processing module, according to the system configuration
  • the value of the AC corresponding to the EAB parameter determines whether the AC level terminal is allowed to access. Specifically used for:
  • the ACB processing module is further configured to: determine whether one or more levels of the AC 11-15 are configured by itself, and in the configuration, the terminal performs access judgment according to the specific parameters of the AC 11-15: specific to the AC 11-15 If the value of the AC corresponding to the terminal is not barred, the terminal is allowed to access the system directly, and no processing notification or sending notification is sent to the EAB.
  • the specific parameters in the AC11-15 are configured by the terminal.
  • the value is barred, it is determined that the terminal is configured with the AC11-15 level in the ACB mechanism, and the value of the AC corresponding to the terminal is forbidden to be sent, and the processing notification is sent to the EAB; or, if the terminal is not configured with AC11-15 One or more of the levels, send a processing notification to the EAB.
  • the ACB processing module is further configured to perform normal ACB judgment, that is, when the EAB processing module determines that the terminal allows access, the ordinary ACB judgment process is continued.
  • the apparatus of the present invention can be placed in a user terminal, and the user terminal is a terminal to which the EAB is applicable. The details are described below in conjunction with the embodiments.
  • the terminal determines whether it has one or more levels of special access level AC11-15. If configured, the terminal is specified according to AC11-15. Parameters for access judgment:
  • the terminal directly accesses the system and ends.
  • the terminal If the value of the AC corresponding to the parameter configuration terminal of the AC11-15 is barred, the terminal is forbidden to access the system. In this case, The terminal continues to determine whether the EAB parameter is barred. If yes, the terminal determines that the cell does not allow access to the cell, and calculates the time for re-accessing the system according to the forbidden time parameter configured by the system, and ends;
  • the terminal performs the access permission judgment according to the normal ACB parameter broadcasted by the system.
  • the access control is performed according to the existing process.

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

Abstract

本发明提供了一种终端接入方法及装置,包括根据系统配置的EAB参数中对应AC的取值,确定是否允许该AC等级终端接入,如果根据所述EAB参数确定对应AC为允许notbarred,则按照现有系统广播的普通接入等级限制ACB参数进行接入允许判断;如果根据所述EAB参数确定对应AC为禁止barred,则根据系统配置的禁止时间参数计算出再次接入系统的禁止时间。本发明方法将EAB与现有的ACB机制结合进行处理,解决了大量对时延不敏感或者优先级较低的业务或终端同时接入网络时可能带来的对系统的冲击问题;而且,在突发事件发生时,对EAB适用的终端有了适当的控制,避免了该类终端毫无顾忌的直接接入系统,缩短了延缓在突发事件时系统拥塞的过程。

Description

一种终端接入方法及装置 技术领域
本发明涉及机器类通信(MTC, Machine Type Communication )技术, 尤指一种终端接入方法及装置。 背景技术
人对人 ( H2H, Human to Human )通信是指人与人之间的通信, 通过 对设备的操作进行通信,现有无线通信技术是基于 H2H的通信发展起来的, 在 H2H通信中, 人们借助 H2H设备即通常意义下的用户设备(UE, User Equipment ) 实现通信。 而机器对机器(M2M, Machine to Machine )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。 M2M技术基于智能机器终端, 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、 数据采集和测量等方面的信息化需求。
无线技术的发展是 M2M市场发展的重要因素, M2M技术突破了传统 通信方式的时空限制和地域障碍, 使企业和公众摆脱了线缆束缚, 让客户 更有效地控制成本、 降低安装费用并且使用简单方便。 另外, 日益增长的 需求推动着 M2M不断向前发展。与信息处理能力及网络带宽不断增长相矛 盾的是, 信息获取的手段远远落后, 而 M2M很好的满足了这一需求, 通过 M2M技术, 可以实时监测外部环境, 实现大范围、 自动化的信息采集。 因 此, M2M可以广泛应用于行业应用、 家庭应用、 个人应用等。 行业应用如 交通监控、 告警系统、 海上救援、 自动售货机、 开车付费等, 家庭应用如 自动抄表、 温度控制等, 个人应用如生命检测、 远端诊断等。
M2M的通信对象为机器对机器, 人对机器。 一个或多个机器之间的数 据通信定义为机器类通信(MTC, Machine Type Communication ), 这种情 况下较少需要人机互动。参与 MTC的机器, 定义为 MTC设备(MD, MTC device )。 MTC设备是 MTC用户的终端, 可通过公共陆地移动网 ( PLMN ) 网络与 MTC设备、 MTC服务器进行通信。
引入 M2M应用后,可以根据其特点对现有系统进行一些优化, 以满足
M2M应用需求,并且对现有系统中的普通 UE不产生影响。 M2M应用的一 些显著特点有: MTC设备数量很多, 每次传输的数据量小、 传输间隔大, 位置相对固定等。 鉴于 MTC设备的数量众多, 与普通 UE即 H2H设备的 数量不在一个数量级, MTC设备的广泛应用很可能使网络处于过载状态, 比如当某个小区突然发生停电事故, 当电源恢复时, 众多的 MTC设备可能 同时尝试接入网络, 这将导致网络处于过载状态。
目前, 长期演进(LTE ) 系统的过载控制分两个层次: 接入网的过载控 制和核心网的过载控制。 其中, 接入网的过载控制仅针对演进基站(eNB ) 的负载而言。 如果接入网没有过载, 则会将终端的请求信息发送给核心网, 如果核心网出现过载, 那么, 核心网回复拒绝消息给终端, 终端退出系统, 之前建立的信令链路都释放。
针对接入网的过载控制, 可以通过接入等级限制 (ACB, Access Class Barring )机制来对终端接入系统进行控制, 下面针对 LTE系统采用的 ACB 机制执行过程介绍如下:
运营商将终端分类定义为 16个接入等级(AC, Access Class ), 其中,
AC0-9属于普通级别, 随机分配给终端; AC10表示紧急呼叫 (不会配置给 终端); AC11用于网络操作; AC12为安全业务; AC13为公共服务类别(如 水、 气供应商); AC14表示紧急业务; AC15表示运营商工作人员。 一个终 端可以配置为 AC0-9中的一个级别以及 AC11-15中的一个或多个级别, 这 些配置信息保存在身份认证模块( SIM )卡中。
LTE 系统中, 在系统消息中会广播 ACB 参数, 可以针对紧急呼叫 ( Emergency call ), 终端发起的信令呼叫 ( MO- signalling )、 终端发起的数 据呼叫 ( MO-data ) , 多媒体语言 ( MMTEL- Voice ) 和多媒体视频 ( MMTEL- Video ), 来执行 ACB控制。 其中, 针对 Emergency call只有禁 止或者允许。 其他情况网络会配置禁止概率因子(BarringFactor )和禁止时 间 ( BarringTime )。 终端自己产生 0-1的随机数, 如果大于 BarringFactor则 在 [(0.7+ 0.6 * rand) * ac-BarringTime]内不允许再次接入,过后可以再次尝试 接入系统; 否则, 终端允许接入系统; 另夕卜, ACB机制中对 AC0-9的控制 是一样的, 对于 AC11-15 , 网络可以单独配置是否禁止该类别用户的接入。 其中, rand为终端自身生成的一个随机数, ac-BarringTime系为系统预先配 置的一个禁止时间。
UE如果配置有 AC11-15和 AC0-9,对于 MO data/signalling, 首先判断 AC11-15对应的禁止特定等级终端( BarringForSpecialAC )是否禁止( bar ), 如果没有, 则直接接入, 否则按照 AC0-9 的参数进行 ACB 控制。 对于 emergency call , 首 先 判 断 SIB2 中 配 置 的 禁止 紧 急 呼 叫 ( ac-BarringForEmergency )是否禁止, 如果没有禁止则直接接入; 如果禁 止, 则判断禁止终端发起的数据业务 ( ac-BarringForMO-Data ) 中的 ac-BarringForSpecialAC 对应的 AC 是否禁止, 如果禁止则不能发起 emergency call, 否则允许。
在引入 MTC设备后, 为了防止大量设备同时接入引起的系统沖击, ACB机制是一种很好的解决方案, 可以控制终端接入系统的时间和频度, 从源头上减緩大量终端造成的系统沖击。 而且, 由于 MTC设备一般优先级 较低, 而且对时延不敏感, 可以采用较严格的接入控制策略。
由于新业务类型 (或者终端类型) 引入, 这些新类别一般认为是对时 延不敏感或者优先级较低的业务或者终端, 为了能细分控制, 并且对现有 普通终端不造成影响, 需要对现有 ACB机制进行增强, 也称为增强接入限 制 (EAB )。 主要增强方式有如下两种: 其中一种方式是, 扩充 AC等级数目: 为新业务类型 (或者终端类型) 分配新的 AC等级值, 超过现有的 15个等级。 针对新分配的 AC类型可以 采用同样控制的机制, 不过需要扩充相应参数范围。 比如: 增加新的 AC, Class 20-29表示扩展接入级别 (EAC, Extended Access Class ), Class 30-39 表示扩展接入级别低优先级( EAC Low Priority, Extended Access Class Low Priority );对于新增加的 AC,网络侧可以广播两套不同的参数;被配置 EAC 或 EAC Low Priority的 UE,将忽略与 AC0~9和 AC11~15相关的广播信息。
另一种方式是,不扩充 AC等级数目,额外配置一套针对新业务类型(或 者终端类型)的参数, 结合现有的 AC等级进行控制: 终端配置低接入优先 级( low access priority );网络侧广播现有 ACB参数,同时广播 10 new EACB bits (for 'normal classes' 0 to 9信息, 即 EACB参数中配置的 10个 bit, 其 中, bitl指向 AC等级 0的用户, bit2指向 AC等级 1的用户 ...bitlO指向 AC等级 9的用户。在 10 new EACB bits (for 'normal classes' 0 to 9信息中, 0表示允许 ( not barred ), 1表示禁止(barred ); 如第一个 bit为 1 , 说明 AC0等级的 EAB适用的终端是不允许接入的。 如果适用于 EAB的 UE被 配置有 AC0-9, 则忽略 AC0-9对应的 ACB参数, 使用 EAB参数; 如果适 用于 EAB的 UE被配置为 AC11-15等级,则忽略 EAB参数,使用 AC11-15 对应的 ACB参数。 EAB广播信息组成: EAB0-9bits和 EAB适用的 UE类 另' J。 如果配置有 EAB的 UE发起紧急呼叫, 则 UE忽略 EAB信息。 如果网 络没有广播 EAB信息, 则 UE使用 ACB参数进行判断。
在上述 EAB方案中, 由于 EAB参数是枚举类型 ( Eunm ) 即 barred, not barred, 一旦 EAB参数被配置, 就会直接禁止某个 /某些 AC的 EAB适 用终端或者直接允许某个 /些 AC的 EAB适用终端。 如果 EAB适用终端仅 依据 EAB参数, 不按照现有 ACB机制进行接入时间控制, 那么, 一旦该 类别允许接入就相当于赋予 EAB适用终端更高优先级,这显然是不合理的。 因为 EAB适用的终端一般是对时延不敏感或者优先级较低的业务或者终端 类别。 比如: EAB对应的 AC5类别 MTC终端允许接入, 那么, 这些终端 就直接接入系统; 而正常的 AC5类别终端还需要根据 ACB参数计算概率 等过程, 可能不被允许接入。 这样的话, 相当于 EAB适用的终端比普通终 端的优先级更高, 这样的终端接入是不合理的, 反而会更进一步引起的系 统沖击。 发明内容
有鉴于此, 本发明的主要目的在于提供一种终端接入方法及装置, 能 够合理接入终端, 降低由于大量设备同时接入对系统造成的沖击。
为达到上述目的, 本发明的技术方案是这样实现的:
一种终端接入方法, 包括: 根据系统配置的增强接入限制 EAB参数中 对应 AC的取值, 确定是否允许该 AC等级终端接入,
如果根据所述 EAB参数确定对应 AC为允许接入 not barred,则按照现 有系统广播的普通的 ACB参数进行接入允许判断;
如果根据 EAB参数确定对应 AC为禁止接入 barred, 则根据系统配置 的禁止时间参数计算出再次接入系统的禁止时间。
该方法之前还包括: 确定出所述终端配置有特殊接入等级 AC11-15 中 的等级, 且终端对应特殊接入等级 AC的取值为禁止接入; 或者,
确定出所述终端没有配置特殊接入等级 AC11-15 中的一个或一个以上 的等级。
所述确定终端配置有特殊接入等级 AC11-15的等级, 且接入参数中终 端对应的特殊 AC等级的取值为禁止接入包括:
所述终端判断自身是否配置有特殊接入等级 AC11-15 中的一个或一个 以上的等级, 如果配置有, 所述终端按照 AC11-15特定的参数进行接入判 断:
如果所述特殊接入等级 AC11-15 的参数配置的是终端对应的特殊 AC 等级的取值为允许 not barred, 所述终端被允许直接接入系统, 结束本流程; 如果所述特殊接入等级 AC11-15 的参数配置的是终端对应的特殊 AC 等级的取值为禁止 barred,则确定出所述终端配置有特殊接入等级 AC11-15 中的一个或一个以上的等级, 且终端对应的特殊 AC 等级的取值为禁止接 入, 根据系统配置的增强接入限制 EAB参数中对应 AC的取值, 终端执行 接入判断确定是否允许该 AC等级终端接入的步驟。
一种终端接入装置, 至少包括 ACB处理模块、 EAB处理模块, 其中, ACB处理模块, 向 EAB发送处理通知, 以及进行 ACB处理;
EAB处理模块,接收到来自 ACB处理模块的处理通知,根据系统配置 的 EAB参数中对应 AC的取值,确定是否允许该 AC等级终端接入:在 EAB 参数中对应 AC的取值为 barred时, 确定小区不允许该终端接入, 根据系 统配置的禁止时间参数计算出再次接入系统的禁止时间;
在 EAB参数中对应 AC的取值为 not barred时, 确定小区允许该终端 继续按照现有系统广播的普通的 ACB参数进行接入允许判断。
所述 ACB处理模块, 还用于:
所述终端判断自身是否配置有特殊接入等级 AC11-15 中的一个或一个 以上的等级, 在配置有时, 该终端按照特殊接入等级 AC11-15特定的参数 进行接入判断: 在 AC11-15特定的参数配置的是终端对应特殊 AC等级的 取值为 not barred时, 该终端被允许直接接入系统, 不再向 EAB发送处理 通知或发送无需处理通知; 在 AC11-15特定的参数配置的是终端对应特殊 AC等级的取值为 barred时, 确定出终端配置有 ACB机制中的 AC11-15的 等级, 且终端对应 AC的取值为禁止接入, 向 EAB发送处理通知; 或者, 确定出所述终端没有配置 AC11-15 中的一个或一个以上的等级, 向 EAB发送处理通知。
所述 ACB处理模块, 还用于在所述 EAB处理模块判断该终端允许接 入时, 执行 ACB判断过程。 所述装置设置在终端中, 所述终端是 EAB适用的终端。
从上述本发明提供的技术方案可以看出, 包括根据系统配置的 EAB参 数中对应 AC的取值, 确定是否允许该 AC等级终端接入, 如果根据所述 EAB参数确定对应 AC为允许接入 not barred,则按照现有系统广播的 ACB 参数进行接入允许判断; 如果根据 EAB 参数确定对应 AC 为禁止接入 barred, 则根据系统配置的禁止时间参数计算出再次接入系统的禁止时间。
本发明方法将 EAB与现有的 ACB机制结合进行处理, 解决了大量对 时延不敏感或者优先级较低的业务或终端同时接入网络时可能带来的对系 统的沖击问题; 而且, 在突发事件发生时, 对 EAB适用的终端有了适当的 控制, 避免了该类终端毫无顾忌的直接接入系统, 缩短了延緩在突发事件 时系统拥塞的过程。 附图说明
图 1为本发明终端接入方法的流程图;
图 2为本发明终端接入装置的组成结构示意图。 具体实施方式
图 1 为本发明终端接入方法的流程图, 当系统同时配置 ACB 参数和 EAB参数时, 如图 1所示,
步驟 100: 确定终端配置特殊接入等级 AC11-15 的等级, 且终端对应 特殊接入等级 AC 的取值为禁止接入, 或者终端未配置特殊接入等级 AC11-15中的一个或一个以上的等级。
本发明中的终端为 EAB适用的终端。
本步驟具体包括: EAB适用的终端判断自身是否配置有特殊接入等级 AC11-15 中的一个或一个以上的等级, 如果配置有, 该终端按照 AC11-15 特定的参数进行接入判断:如果 AC11-15特定的参数配置的是终端对应 AC 的取值为 not barred, 那么, 该终端被允许直接接入系统, 结束本流程; 如 果 AC11-15特定的参数配置的是终端对应 AC的取值为 barred,则确定出终 端配置有 ACB机制中的 AC11-15的等级,且终端对应 AC的取值为禁止接 入, 进入下一步。 如果该终端未配置 AC11-15中的一个或一个以上的等级, 直接进入步驟 101。
步驟 101 : 根据系统配置的 EAB参数中对应 AC的取值, 确定是否允 许该 AC等级终端接入。
本步驟具体包括: 如果根据 EAB参数确定对应 AC为 barred, 则确定 小区不允许该终端接入, 根据系统配置的禁止时间参数计算出用于表示在 一段时间内不允许接入系统的再次接入系统的禁止时间, 结束本流程;
如果根据 EAB参数确定对应 AC为 not barred, 则确定小区允许该 AC 类型终端继续进行接入判断: 即按照现有系统广播的普通的 ACB参数进行 接入允许判断。 这里, 具体的判断即参数的使用过程属于现有技术, 如随 机产生一个随机数与 BarringFactor比较, 小于就接入等等; 或者直接在参 数中配置允许或者禁止, 其具体实现属于本领域技术人员的公知技术, 不 再赘述。
本发明方法将 EAB与普通 ACB机制关联起来, 解决了大量对时延不 敏感或者优先级较低的业务或终端同时接入网络时可能带来的对系统的沖 击问题; 而且, 在突发事件发生时, 对 EAB适用的终端 (即优先级较低、 对时延不敏感的终端)有了适当的控制, 避免了该类终端毫无顾忌的直接 接入系统, 缩短了延緩在突发事件时系统拥塞的过程。
图 2为本发明终端接入装置的组成结构示意图, 如图 2所示, 至少包 括 ACB处理模块、 EAB处理模块, 其中,
ACB处理模块,用于向 EAB发送处理通知,以及进行普通的(现有的) ACB处理;
EAB处理模块,接收到来自 ACB处理模块的处理通知,根据系统配置 的 EAB参数中对应 AC的取值, 确定是否允许该 AC等级终端接入。 具体 用于:
在根据 EAB参数确定对应 AC为 barred时, 确定小区不允许该终端接 入, 根据系统配置的禁止时间参数计算出再次接入系统的禁止时间;
在根据 EAB参数确定对应 AC为 not barred时, 确定小区允许该终端 继续进行接入判断: 即按照现有系统广播的普通的 ACB参数进行接入允许 判断。
所述 ACB处理模块,还用于: 判断自身是否配置有 AC11-15中的一个 或一个以上的等级, 在配置有时, 终端按照 AC11-15特定的参数进行接入 判断:在 AC11-15特定的参数配置的是终端对应 AC的取值为 not barred时, 该终端被允许直接接入系统, 不再向 EAB发送处理通知或发送无需处理通 知; 在 AC11-15特定的参数配置的是终端对应 AC的取值为 barred时, 确 定出终端配置有 ACB机制中的 AC11-15的等级,且终端对应 AC的取值为 禁止接入, 向 EAB发送处理通知; 或者, 如果该终端没有配置 AC11-15中 的一个或一个以上的等级, 向 EAB发送处理通知。
所述 ACB处理模块, 还用于进行普通 ACB判断, 即当 EAB处理模块 判断该终端允许接入时, 继续执行普通的 ACB判断过程。
本发明装置可以设置在用户终端中,而且用户终端是 EAB适用的终端。 下面结合实施例进行详细描述。
假设系统同时配置有 ACB参数和 EAB参数, 在终端接入时, 终端判断自身是否配置有特殊接入等级 AC11-15中的一个或一个以上 等级, 如果配置有, 该终端按照 AC11-15特定的参数进行接入判断:
如果 AC11-15特定的参数配置终端对应 AC的取值为 not barred,那么, 该终端直接接入系统, 结束;
如果 AC11-15特定的参数配置终端对应 AC的取值为 barred, 那么, 该终端被禁止接入系统, 此时, 终端继续判断 EAB参数确定对应 AC是否为 barred, 如果是, 那么, 该终端判断出小区不允许其接入, 根据系统配置的禁止时间参数计算出再 次接入系统的时间, 结束;
如果根据 EAB参数确定对应 AC是否为 not barred,该终端判断出小区 允许其继续进行接入判断, 则该终端按照系统广播的普通 ACB参数进行接 入允许判断。
需要说明的是, 针对 EAB适用的终端发起的紧急呼叫, 其接入控制按 照现有流程进行。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保护 范围, 凡在本发明的精神和原则之内所作的任何修改、 等同替换和改进等, 均应包含在本发明的保护范围之内。

Claims

权利要求书
1、 一种终端接入方法, 其特征在于, 包括: 根据系统配置的增强接入 限制 EAB参数中对应接入等级 AC的取值, 确定是否允许该 AC等级终端 接入,
如果根据 EAB参数确定对应 AC为允许接入(not barred ), 则按照现 有系统广播的普通的接入等级限制 ACB参数进行接入允许判断。
2、 根据权利要求 1所述的终端接入方法, 其特征在于, 如果根据所述 EAB参数确定对应 AC为禁止接入( barred ), 该方法还包括:
所述终端根据系统配置的禁止时间参数计算出再次接入系统的禁止时 间。
3、 根据权利要求 1所述的终端接入方法, 其特征在于, 该方法之前还 包括: 确定出所述终端配置有特殊接入等级 AC11-15 中的一个或一个以上 的等级, 且终端对应特殊接入等级 AC的取值为禁止接入; 或者,
确定出所述终端没有配置特殊接入等级 AC11-15 中的一个或一个以上 的等级。
4、 根据权利要求 3所述的终端接入方法, 其特征在于, 所述确定终端 配置有特殊接入等级 AC11-15 中的一个或一个以上等级, 且终端对应 AC 的取值为禁止接入包括:
所述终端判断自身是否配置有特殊接入等级 AC11-15 中的一个或一个 以上的等级, 如果配置有, 所述终端按照 AC11-15特定的参数进行接入判 断:
如果所述 AC11-15特定的参数配置的是终端对应 AC的取值为允许 not barred, 所述终端被允许直接接入系统, 结束本流程;
如果所述 AC11-15 特定的参数配置的是终端对应 AC 的取值为禁止 barred, 则确定出所述终端配置有特殊接入等级 ACll-15中的等级, 且终端 对应 AC的取值为禁止接入, 执行根据系统配置的增强接入限制 EAB参数 中对应 AC的取值, 确定是否允许该 AC等级终端接入的步驟。
5、 一种终端接入装置, 其特征在于, 至少包括 ACB处理模块、 EAB 处理模块, 其中,
ACB处理模块, 向 EAB发送处理通知, 以及进行 ACB处理;
EAB处理模块,接收到来自 ACB处理模块的处理通知,根据系统配置 的 EAB参数中对应 AC的取值, 确定是否允许该 AC等级终端接入: 在根 据 EAB参数确定对应 AC为 barred时, 确定小区不允许该终端接入, 根据 系统配置的禁止时间参数计算出再次接入系统的禁止时间;
在根据 EAB参数确定对应 AC为 not barred时, 确定小区允许该终端 继续按照现有系统广播的普通的 ACB参数进行接入允许判断。
6、 根据权利要求 5所述的终端接入装置, 其特征在于, 所述 ACB处 理模块, 还用于:
所述终端判断自身是否配置有特殊接入等级 AC11-15 中的一个或一个 以上的等级, 在配置有时, 该终端按照特殊接入等级 AC11-15特定的参数 进行接入判断: 在 AC11-15特定的参数配置的是终端对应特殊 AC等级的 取值为 not barred时, 该终端被允许直接接入系统, 不再向 EAB发送处理 通知或发送无需处理通知; 在 AC11-15特定的参数配置的是终端对应特殊 AC等级的取值为 barred时, 确定出终端配置有 ACB机制中的 AC11-15的 等级, 且终端对应 AC的取值为禁止接入, 向 EAB发送处理通知; 或者, 确定出所述终端没有配置 AC11-15 中的一个或一个以上的等级, 向 EAB发送处理通知。
7、 根据权利要求 6所述的终端接入装置, 其特征在于, 所述 ACB处 理模块, 还用于在所述 EAB处理模块判断该终端允许接入时, 执行 ACB 判断过程。
8、 根据权利要求 5、 6或 7所述的终端接入装置, 其特征在于, 所述 -置设置在终端中, 所述终端是 EAB适用的终端,
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