WO2014190839A1 - 一种非接入层消息的发送方法、基站及核心网设备 - Google Patents
一种非接入层消息的发送方法、基站及核心网设备 Download PDFInfo
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- WO2014190839A1 WO2014190839A1 PCT/CN2014/076721 CN2014076721W WO2014190839A1 WO 2014190839 A1 WO2014190839 A1 WO 2014190839A1 CN 2014076721 W CN2014076721 W CN 2014076721W WO 2014190839 A1 WO2014190839 A1 WO 2014190839A1
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- 230000000737 periodic effect Effects 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims description 22
- 230000003139 buffering effect Effects 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 1
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- 238000004806 packaging method and process Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1896—ARQ related signaling
Definitions
- the present invention relates to the field of mobile communications technologies, and in particular, to a method for transmitting a non-access stratum message, a base station, and a core network device.
- the protocol stack of LTE (Long Term Evolution) and UMTS (Universal Mobile Telecommunications System) is divided into AS (Access Stratum) and NAS (Non-Access Stratum).
- Non-access layer The flow of the access layer refers to the process that the eNodeB (Evolved Node B) needs to participate in.
- the process of the non-access stratum refers to the process that only the UE (User Equipment) and the CN (Core Network) need to process.
- the NAS message is independent of the following AS protocol structure and has nothing to do with the used radio access network. It can be LTE, GSM (Global System for Mobile Communications), WCDMA (Wideband Code Division Multiple Access), and so on.
- the cluster group call is different from the normal call. During the call, there are new users joining (called late access). In order to ensure that the new user can access the group call in progress, during the trunk call, the network side needs A group call configuration message, a cluster neighbor information indication message, an alert with information message, and the like, wherein the group call configuration message and the cluster neighbor information indication message belong to the AS message, and the Alert With Information message belongs to the NAS. Message.
- the interface between the LTE cluster core network PDS (PTT Dispatch Server) and the eNodeB is the T1 interface.
- the NAS message as the code stream is the main part of the T1 message, and the eNodeB does not parse the NAS message code stream.
- Periodic NAS messages, PDS sending periodic NAS messages consume T1 interface resources very much.
- the technical problem to be solved by the embodiments of the present invention is to provide a method for transmitting a non-access stratum message, a base station, and a core network device, which can reduce the transmission of non-access stratum messages to a large number of T1 interface resources. Consumption.
- a method for sending a non-access stratum message includes:
- the base station receives, from the core network, a first message encapsulated with a non-access stratum NAS message, where the first message carries retransmission type information and NAS message type information;
- the base station caches the NAS message according to the type according to the NAS message type information, and periodically sends the cached different types of NAS messages to the user equipment.
- the method further comprises:
- the base station transparently transmits the NAS message to the user equipment when the retransmission type information indicates aperiodic transmission.
- the buffering the NAS message according to the type according to the NAS message type information includes:
- the base station determines, according to the NAS message type information, whether the NAS message of the type has been cached, and if it is cached, replaces the cached NAS message of the same type with the received NAS message; if not, caches the type. NAS message.
- the first message is a T1 message
- the NAS message is a NAS message to be sent by the core network during a trunking call.
- a method for sending a non-access stratum message includes:
- the non-access stratum NAS message to be sent by the core network device to the user equipment is encapsulated in the first message, where the first message carries retransmission type information and NAS message type information, and the retransmission type information indicates the NAS Whether the message needs to be periodically sent by the base station, and the NAS message type information indicates the type of the NAS message;
- the core network device sends the first message to a base station.
- the first message is a T1 message
- the NAS message is a NAS message to be sent by the core network device during a trunking call.
- a base station includes: a receiving unit, a buffer unit, and a sending unit, where: The receiving unit is configured to receive, from the core network, a first message encapsulated with a non-access stratum NAS message, where the first message carries retransmission type information and NAS message type information;
- the buffering unit is configured to cache the NAS message according to the type according to the NAS message type information when the retransmission type information indicates a periodic transmission;
- the sending unit is configured to periodically send different types of cached NAS messages to the user equipment.
- the sending unit is further configured to transparently transmit the NAS message to the user equipment when the retransmission type information indicates aperiodic transmission.
- the buffer unit is configured to determine, according to the NAS message type information, whether the NAS message of the type has been cached, and if it is cached, replace the cached NAS message of the same type with the received NAS message; If it is not cached, this type of NAS message is cached.
- the first message is a T1 message
- the NAS message is a NAS message to be sent by the core network during a trunking call.
- a core network device includes: an encapsulating unit and a message sending unit, where: the encapsulating unit is configured to encapsulate a non-access stratum NAS message to be sent to the user equipment in a first message, where The message carries the retransmission type information and the NAS message type information, where the retransmission type information indicates whether the NAS message needs to be periodically sent by the base station, and the NAS message type information indicates the type of the NAS message;
- the message sending unit is configured to send the first message to a base station.
- the first message is a T1 message
- the NAS message is a NAS message to be sent by the core network device during a trunking call.
- the embodiment of the present invention can reduce the number of messages sent by the core network to the eNodeB, and improve the LTE network, by using the core network to implement the periodic transmission of the NAS message to the base station. s efficiency.
- FIG. 1 is a schematic diagram of a protocol stack of an LTE network in the related art
- 2 is a flowchart of a method for transmitting a non-access stratum message according to an embodiment of the present invention
- FIG. 3 is a schematic structural diagram of a base station according to an embodiment of the present invention
- FIG. 4 is a structural diagram of a core network device according to an embodiment of the present invention. Preferred embodiment of the invention
- the NAS message is sent by the core network.
- the core network device periodically needs to be sent to the user equipment, which consumes T1 interface resources. Therefore, the core network device is used in this embodiment. (For the PTT scheduling server for the cluster service)
- the NAS message sent periodically is moved down to the eNodeB to implement periodic transmission.
- the NAS message is encapsulated in the first message (such as the T1 message), and the retransmission type information and the NAS message type information are added to the T1 message.
- the eNodeB finds that the retransmission type is a period according to the retransmission type information.
- the NAS message is cached according to the type of the NAS message type information, and then different types of NAS messages are periodically sent to the user equipment.
- the eNodeB only needs to determine whether the types of the NAS messages are equal according to the NAS message type information, and does not care about the type of the NAS message. The most important thing is that the NAS message stream itself is not parsed, so it does not violate the The principle that the AS layer and the NAS layer are independent in the LTE protocol.
- the method for sending a non-access stratum message includes:
- Step 201 The LTE core network PDS sends a T1 message (the first message) to the eNodeB, encapsulates the NAS message in the T1 message, and carries the retransmission type information and the NAS message type information in the message structure, and the retransmission type information indication is aperiodic. Send
- the retransmission type information is used to indicate whether the NAS message in the T1 message requires the base station to perform periodic transmission.
- the NAS message type information is used to indicate the type of the NAS message in the T1 message, including: an Attach Accept message, an Authentication Request message, a Security Mode Command message, and a ringing message (Alert With) Information ) Messages, etc.
- the NAS message in the T1 message in this step is a NAS message that is sent to the UE aperiodically, and the retransmission type information indicates a non-periodic transmission.
- Step 202 After receiving the T1 message, the eNodeB determines that the retransmission type information indicates aperiodic transmission, and transparently transmits the aperiodic NAS message to the UE.
- NAS messages that fall into this category include: Attach Accept, Authentication Request, Security Mode Command, and so on.
- Step 203 The LTE core network PDS sends a T1 message to the eNodeB, encapsulates the NAS message in the T1 message, and carries the retransmission type information and the NAS message type information in the message structure, and the retransmission type information carried in the message structure is indicated as a periodic transmission. ;
- the NAS message in the T1 message in this step is a NAS message periodically sent to the UE, and the retransmission type information is indicated as a periodic transmission.
- Step 204 After receiving the T1 message, the eNodeB caches the NAS message according to the type of the NAS message type information in the T1 message when the retransmission type information indicates the periodic transmission.
- the eNodeB caches the NAS message according to the type of the NAS message type information, including: The eNodeB determines, according to the NAS message type information, whether the NAS message of the type has been cached, and if it is cached, replaces the cached same type with the received NAS message. NAS message; if not cached, cache NAS messages of this type.
- the eNodeB Since the eNodeB does not parse the NAS message stream, it does not violate the principle that the AS layer and the NAS layer are independent of each other.
- Step 205 The eNodeB periodically sends the buffered NAS message to the UE.
- the PDS indicates to the eNodeB that the periodic transmission is required by using the retransmission type information.
- the eNodeB determines the periodic transmission according to the retransmission type information, according to the NAS message type information.
- the ringing information message is buffered according to the type, and the cached NAS message is periodically forwarded separately.
- the PDS when the PDS is sent in the retransmission type information indication period, the PDS may also carry the periodic transmission time in the T1 message, and the eNodeB periodically sends the periodic time carried in the T1 message; or the PDS and the eNodeB agree on the default. Cycle time, eNodeB according to the default cycle time Periodic transmission is not limited in this paper.
- the embodiment further provides a base station, including: a receiving unit, a cache unit, and a sending unit, where:
- a receiving unit configured to receive, from the core network, a first message encapsulated with a non-access stratum NAS message, where the first message carries retransmission type information and NAS message type information;
- a buffer unit configured to cache the NAS message according to the type of the NAS message type information when the retransmission type information indicates a periodic transmission;
- the sending unit is configured to periodically send different types of cached NAS messages to the user equipment.
- the sending unit is further configured to transparently transmit the NAS message to the user equipment when the retransmission type information indicates aperiodic transmission.
- a cache unit configured to determine, according to the NAS message type information, whether the NAS message of the type is cached, and if it is cached, replace the cached NAS message of the same type with the received NAS message; if not, cache the type NAS message.
- the first message is a T1 message
- the NAS message is a NAS message to be delivered by the core network during a trunk call.
- the embodiment further provides a core network device, including: a packaging unit and a message sending unit, where:
- the encapsulating unit is configured to encapsulate the non-access stratum NAS message to be sent to the user equipment in the first message, and carry the retransmission type information and the NAS message type information in the first message, where the retransmission type information indicates whether the NAS message needs the base station Periodically sending, the NAS message type information indicating the type of the NAS message;
- the message sending unit is configured to send the first message to the base station.
- the first message is a T1 message
- the NAS message is a NAS message to be delivered by the core network device during a trunk call.
- a program to instruct the associated hardware, such as a read only memory, a magnetic disk, or an optical disk.
- all or part of the steps of the foregoing embodiments may also be implemented by using one or more integrated circuits. Accordingly, each module/unit in the foregoing embodiment may be implemented in the form of hardware, or may use software functions. The form of the module is implemented. This application is not limited to any specific combination of hardware and software.
- the embodiment of the present invention can reduce the number of messages sent by the core network to the eNodeB and improve the efficiency of the LTE network by moving the NAS message periodically transmitted by the core network to the base station to save the interface resources.
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Abstract
本发明实施例公开了一种非接入层(NAS)消息的发送方法、基站及核心网(CN)设备。其中:基站从CN接收封装有NAS消息的第一消息,所述第一消息中携带有重传类型信息和NAS消息类型信息;所述基站在所述重传类型信息指示周期发送时,根据所述NAS消息类型信息按照类型对NAS消息进行缓存,对缓存的不同类型的NAS消息周期性发送到用户设备(UE)。本发明实施例将由CN实现周期发送的NAS消息,下移到基站实现,从而节省接口资源,能够显著地减少CN向演进节点B(eNodeB)发送消息的数量,提高长期演进(LTE)网络的效率。
Description
一种非接入层消息的发送方法、 基站及核心网设备
技术领域
本发明涉及移动通信技术领域,尤其涉及一种非接入层消息的发送方法、 基站及核心网设备。
背景技术
如图 1所示, LTE ( Long Term Evolution, 长期演进)、 UMTS ( Universal Mobile Telecommunications System, 通用移动通信***) 的协议栈分为 AS ( Access Stratum, 接入层)和 NAS ( Non- Access Stratum, 非接入层)。 接入 层的流程是指 eNodeB (演进的节点 B )需要参与处理的流程; 非接入层的流 程是指只有 UE ( User Equipment, 用户设备)和 CN ( Core Network, 核心网) 需要处理的流程。 NAS消息独立于下面的 AS协议结构, 与釆用的无线接入 网无关, 可以是 LTE、 GSM (全球移动通信***) 、 WCDMA (宽带码分多 址)等。
集群组呼不同于普通呼叫, 在通话过程中随时有新的用户加入(称为迟 后接入) , 为了保证新用户能够接入进行中的组呼, 在集群通话期间, 网路 侧需要周期下发诸如组呼配置消息、集群邻区信息指示消息、振铃信息(Alert With Information ) 消息等, 其中, 组呼配置消息和集群邻区信息指示消息属 于 AS消息, Alert With Information消息属于 NAS消息。
LTE集群核心网 PDS( PTT Dispatch Server, PTT调度服务器)与 eNodeB 之间的接口为 T1接口, NAS消息作为码流是 T1消息的主体部分, eNodeB 不解析 NAS消息码流,由于集群组呼存在周期 NAS消息, PDS发送周期 NAS 消息十分消耗 T1接口资源。
发明内容
本发明实施例要解决的技术问题是提供一种非接入层消息的发送方法、 基站及核心网设备, 能够降低非接入层消息的发送对 T1 接口资源的大量消
耗。
为解决上述技术问题, 本发明实施例的一种非接入层消息的发送方法, 包括:
基站从核心网接收封装有非接入层 NAS消息的第一消息,所述第一消息 中携带有重传类型信息和 NAS消息类型信息;
所述基站在所述重传类型信息指示周期发送时,根据所述 NAS消息类型 信息按照类型对 NAS消息进行緩存, 对緩存的不同类型的 NAS消息周期性 发送到用户设备。
优选地, 还包括:
所述基站在所述重传类型信息指示非周期发送时,透传所述 NAS消息至 用户设备。
优选地, 所述根据所述 NAS消息类型信息按照类型对 NAS消息进行緩 存, 包括:
所述基站根据所述 NAS消息类型信息判断是否已緩存该类型的 NAS消 息, 如果已緩存, 则釆用接收到的 NAS消息替换已緩存的相同类型的 NAS 消息; 如果未緩存, 则緩存该类型的 NAS消息。
优选地, 所述第一消息为 T1消息, 所述 NAS消息为在集群通话期间, 所述核心网要下发的 NAS消息。
优选地, 一种非接入层消息的发送方法, 包括:
核心网设备将要发送给用户设备的非接入层 NAS 消息封装在第一消息 中, 在所述第一消息中携带重传类型信息和 NAS消息类型信息, 所述重传类 型信息指示所述 NAS消息是否需要基站进行周期发送, 所述 NAS消息类型 信息指示所述 NAS消息的类型;
所述核心网设备将所述第一消息发送给基站。
优选地, 所述第一消息为 T1消息, 所述 NAS消息为在集群通话期间, 所述核心网设备要下发的 NAS消息。
优选地, 一种基站, 包括: 接收单元、 緩存单元和发送单元, 其中:
所述接收单元,设置为从核心网接收封装有非接入层 NAS消息的第一消 息, 所述第一消息中携带有重传类型信息和 NAS消息类型信息;
所述緩存单元, 设置为在所述重传类型信息指示周期发送时, 根据所述 NAS消息类型信息按照类型对 NAS消息进行緩存;
所述发送单元,设置为对緩存的不同类型的 NAS消息周期性发送到用户 设备。
优选地, 所述发送单元, 还设置为在所述重传类型信息指示非周期发送 时, 透传所述 NAS消息至用户设备。
优选地, 所述緩存单元, 设置为根据所述 NAS消息类型信息判断是否已 緩存该类型的 NAS消息, 如果已緩存, 则釆用接收到的 NAS消息替换已緩 存的相同类型的 NAS消息; 如果未緩存, 则緩存该类型的 NAS消息。
优选地, 所述第一消息为 T1消息, 所述 NAS消息为在集群通话期间, 所述核心网要下发的 NAS消息。
优选地, 一种核心网设备, 包括: 封装单元和消息发送单元, 其中: 所述封装单元,设置为将要发送给用户设备的非接入层 NAS消息封装在 第一消息中, 在所述第一消息中携带重传类型信息和 NAS消息类型信息, 所 述重传类型信息指示所述 NAS消息是否需要基站进行周期发送, 所述 NAS 消息类型信息指示所述 NAS消息的类型;
所述消息发送单元, 设置为将所述第一消息发送给基站。
优选地, 所述第一消息为 T1消息, 所述 NAS消息为在集群通话期间, 所述核心网设备要下发的 NAS消息。
综上所述, 本发明实施例将由核心网实现周期发送的 NAS消息, 下移到 基站实现, 从而节省接口资源, 本发明实施例能够显著地减少核心网向 eNodeB发送消息的数量, 提高 LTE网络的效率。 附图概述
图 1为相关技术中 LTE网络的协议栈的示意图;
图 2为本发明实施方式的非接入层消息的发送方法的流程图; 图 3为本发明实施方式的基站的架构图;
图 4为本发明实施方式的核心网设备的架构图。 本发明的较佳实施方式
下文中将结合附图对本申请的实施例进行详细说明。在不冲突的情况下, 本申请中的实施例及实施例中的特征可以相互任意组合。
根据协议栈的分层结构, NAS消息由核心网发送, 但是如集群等业务存 在周期 NAS消息, 需要核心网设备周期向用户设备发送, 比较消耗 T1接口 资源, 因此, 本实施方式将核心网设备(对于集群业务为 PTT调度服务器) 周期发送的 NAS消息, 下移至 eNodeB实现周期发送。
本实施方式中, 在第一消息(如 T1消息)中封装 NAS消息, 对 T1消息 增加重传类型信息和 NAS消息类型信息, eNodeB收到 T1消息后根据重传类 型信息发现重传类型是周期发送时,根据 NAS消息类型信息按照类型对 NAS 消息进行緩存, 然后对不同类型的 NAS消息周期性发送到用户设备。
本实施方式中, eNodeB只需要根据 NAS消息类型信息判断各 NAS消息 的类型是否相等, 并不关心这个 NAS消息是哪种类型, 最重要的是也不解析 NAS消息码流本身, 因此并不违背 LTE协议中 AS层与 NAS层各自独立的 原则。
如图 2所示, 本实施方式的非接入层消息的发送方法, 包括:
步骤 201 : LTE核心网 PDS发送 T1消息(第一消息)给 eNodeB, 在 T1 消息中封装 NAS消息, 并在消息结构中携带重传类型信息和 NAS消息类型 信息, 重传类型信息指示为非周期发送;
重传类型信息用于指示 T1消息中的 NAS消息是否需要基站进行周期发 送。 NAS消息类型信息用于指示 T1消息中的 NAS消息的类型, 包括: 附着 接受 ( Attach Accept )消息、 Authentication Request (认证请求 )消息、 Security Mode Command (安全模式命令) 消息和振铃信息 (Alert With Information )
消息等。
本步骤中 T1消息中的 NAS消息为向 UE非周期发送的 NAS消息, 重传 类型信息指示为非周期发送。
步骤 202: eNodeB在接收到 T1消息后, 判断重传类型信息指示非周期 发送, 透传非周期 NAS消息给 UE;
属于这种情况的 NAS消息包括: Attach Accept、 Authentication Request、 Security Mode Command等。
步骤 203: LTE核心网 PDS发送 Tl消息给 eNodeB, 在 Tl消息中封装 NAS消息,并在消息结构中携带重传类型信息和 NAS消息类型信息, 消息结 构中携带的重传类型信息指示为周期发送;
本步骤中 T1消息中的 NAS消息为向 UE周期发送的 NAS消息, 重传类 型信息指示为周期发送。
步骤 204: eNodeB接收到 T1消息后, 在重传类型信息指示周期发送时, 根据 T1消息中的 NAS消息类型信息按照类型对 NAS消息进行緩存;
eNodeB根据 NAS消息类型信息按照类型对 NAS消息进行緩存, 包括: eNodeB根据 NAS消息类型信息判断是否已緩存该类型的 NAS消息,如果已 緩存, 则釆用接收到的 NAS消息替换已緩存的相同类型的 NAS消息; 如果 未緩存, 则緩存该类型的 NAS消息。
由于 eNodeB不解析 NAS消息码流, 因此并没有违背 AS层和 NAS层相 互独立的原则。
步骤 205: eNodeB对緩存的 NAS消息分别周期性发送到 UE。
比如: 在 NAS消息为振铃信息 Alert With Information消息时 , PDS通过 重传类型信息向 eNodeB指示需要周期发送, eNodeB在接收到 T1消息后, 根据重传类型信息判断周期发送,根据 NAS消息类型信息按照类型对振铃信 息消息进行緩存, 并对緩存的 NAS消息分别进行周期转发。
另夕卜, PDS在重传类型信息指示周期发送时,还可以在 T1消息中携带周 期发送的周期时间, eNodeB按照 T1消息中携带的周期时间进行周期性发送; 也可以是 PDS与 eNodeB约定默认的周期时间, eNodeB按照默认的周期时间
进行周期性发送, 本文中不做限定。
如图 3所示, 本实施方式还提供了一种基站, 包括: 接收单元、 緩存单 元和发送单元, 其中:
接收单元, 设置为从核心网接收封装有非接入层 NAS消息的第一消息, 第一消息中携带有重传类型信息和 NAS消息类型信息;
緩存单元,设置为在重传类型信息指示周期发送时, 根据 NAS消息类型 信息按照类型对 NAS消息进行緩存;
发送单元, 设置为对緩存的不同类型的 NAS 消息周期性发送到用户设 备。
发送单元, 还设置为在重传类型信息指示非周期发送时, 透传 NAS消息 至用户设备。
緩存单元,设置为根据 NAS消息类型信息判断是否已緩存该类型的 NAS 消息,如果已緩存,则釆用接收到的 NAS消息替换已緩存的相同类型的 NAS 消息; 如果未緩存, 则緩存该类型的 NAS消息。
第一消息为 T1消息, NAS消息为在集群通话期间,核心网要下发的 NAS 消息。
如图 4所示, 本实施方式还提供了一种核心网设备, 包括: 封装单元和 消息发送单元, 其中:
封装单元,设置为将要发送给用户设备的非接入层 NAS消息封装在第一 消息中, 在第一消息中携带重传类型信息和 NAS消息类型信息, 重传类型信 息指示 NAS消息是否需要基站进行周期发送, NAS消息类型信息指示 NAS 消息的类型;
消息发送单元, 设置为将第一消息发送给基站。
第一消息为 T1 消息, NAS消息为在集群通话期间, 核心网设备要下发 的 NAS消息。
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。 本申请不限制于任 何特定形式的硬件和软件的结合。
以上所述仅为本申请的优选实施例而已, 并不用于限制本申请, 对于本 领域的技术人员来说, 本申请可以有各种更改和变化。 凡在本申请的精神和 原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本申请的保护 范围之内。
工业实用性
本发明实施例将由核心网实现周期发送的 NAS消息, 下移到基站实现, 从而节省接口资源, 本发明实施例能够显著地减少核心网向 eNodeB发送消 息的数量, 提高 LTE网络的效率。
Claims
1、 一种非接入层消息的发送方法, 包括:
基站从核心网接收封装有非接入层 NAS消息的第一消息,所述第一消息 中携带有重传类型信息和 NAS消息类型信息;
所述基站在所述重传类型信息指示周期发送时,根据所述 NAS消息类型 信息按照类型对 NAS消息进行緩存, 对緩存的不同类型的 NAS消息周期性 发送到用户设备。
2、 如权利要求 1所述的方法, 其中, 还包括:
所述基站在所述重传类型信息指示非周期发送时,透传所述 NAS消息至 用户设备。
3、 如权利要求 1所述的方法, 其中, 所述根据所述 NAS消息类型信息 按照类型对 NAS消息进行緩存, 包括:
所述基站根据所述 NAS消息类型信息判断是否已緩存该类型的 NAS消 息, 如果已緩存, 则釆用接收到的 NAS消息替换已緩存的相同类型的 NAS 消息; 如果未緩存, 则緩存该类型的 NAS消息。
4、 如权利要求 1所述的方法,其中,所述第一消息为 T1消息,所述 NAS 消息为在集群通话期间, 所述核心网要下发的 NAS消息。
5、 一种非接入层消息的发送方法, 包括:
核心网设备将要发送给用户设备的非接入层 NAS 消息封装在第一消息 中, 在所述第一消息中携带重传类型信息和 NAS消息类型信息, 所述重传类 型信息指示所述 NAS消息是否需要基站进行周期发送, 所述 NAS消息类型 信息指示所述 NAS消息的类型;
所述核心网设备将所述第一消息发送给基站。
6、 如权利要求 5所述的方法,其中,所述第一消息为 T1消息,所述 NAS 消息为在集群通话期间, 所述核心网设备要下发的 NAS消息。
7、 一种基站, 包括: 接收单元、 緩存单元和发送单元, 其中: 所述接收单元,设置为从核心网接收封装有非接入层 NAS消息的第一消 息, 所述第一消息中携带有重传类型信息和 NAS消息类型信息;
所述緩存单元, 设置为在所述重传类型信息指示周期发送时, 根据所述 NAS消息类型信息按照类型对 NAS消息进行緩存;
所述发送单元,设置为对緩存的不同类型的 NAS消息周期性发送到用户 设备。
8、 如权利要求 7所述的基站, 其中:
所述发送单元, 还设置为在所述重传类型信息指示非周期发送时, 透传 所述 NAS消息至用户设备。
9、 如权利要求 7所述的基站, 其中:
所述緩存单元,设置为根据所述 NAS消息类型信息判断是否已緩存该类 型的 NAS消息, 如果已緩存, 则釆用接收到的 NAS消息替换已緩存的相同 类型的 NAS消息; 如果未緩存, 则緩存该类型的 NAS消息。
10、 如权利要求 7所述的基站, 其中, 所述第一消息为 T1 消息, 所述
NAS消息为在集群通话期间, 所述核心网要下发的 NAS消息。
11、 一种核心网设备, 包括: 封装单元和消息发送单元, 其中: 所述封装单元,设置为将要发送给用户设备的非接入层 NAS消息封装在 第一消息中, 在所述第一消息中携带重传类型信息和 NAS消息类型信息, 所 述重传类型信息指示所述 NAS消息是否需要基站进行周期发送, 所述 NAS 消息类型信息指示所述 NAS消息的类型;
所述消息发送单元, 设置为将所述第一消息发送给基站。
12、 如权利要求 11所述的核心网设备, 其中, 所述第一消息为 T1消息, 所述 NAS消息为在集群通话期间, 所述核心网设备要下发的 NAS消息。
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