CN105578487A - A monitoring method for terminal disconnection, terminal, and base station - Google Patents
A monitoring method for terminal disconnection, terminal, and base station Download PDFInfo
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Abstract
本发明提供了一种心跳监测方法,包括:在终端与基站交互过程中,所述终端接收所述基站发送的心跳信息,所述心跳信息包括所述基站中与该基站保持连接态的所有终端的标识;所述终端确定所述心跳信息中是否有该终端的标识,如果没有,则确定该终端与所述基站断开。本发明使得终端在和基站没有业务交互时,也具有监测自身是否掉线的能力。
The present invention provides a heartbeat monitoring method, including: during the interaction process between a terminal and a base station, the terminal receives heartbeat information sent by the base station, the heartbeat information includes all terminals in the base station that are in a connection state with the base station ID of the terminal; the terminal determines whether there is an ID of the terminal in the heartbeat information, and if not, determines that the terminal is disconnected from the base station. The invention enables the terminal to have the ability to monitor whether it is disconnected when there is no business interaction with the base station.
Description
技术领域technical field
本发明涉及通信技术领域,具体涉及一种终端掉线的监测方法及终端、基站。The invention relates to the field of communication technology, in particular to a method for monitoring terminal disconnection, a terminal, and a base station.
背景技术Background technique
通信系统存着很多基站和终端状态一致性的问题。一般通信系统中,终端的状态分为连接态和非连接态。如果终端接入基站网络,可以监听基站的调度授权,则处于在线状态,称之为连接态。否则,终端掉线,处于非连接态。处于非连接态的终端必须重新接入基站网络,基站才能正常对其进行资源调度和数据传输。There are many problems in the communication system between the state consistency of the base station and the terminal. In a general communication system, the state of a terminal is divided into a connected state and a non-connected state. If the terminal accesses the base station network and can monitor the scheduling authorization of the base station, it is in an online state, which is called a connected state. Otherwise, the terminal goes offline and is in a disconnected state. The terminal in the non-connected state must re-connect to the base station network, so that the base station can normally perform resource scheduling and data transmission on it.
终端掉线的原因很多,例如,终端监测下行信噪比,如果长时间低于一定门限,则判定下行失败,导致终端自身退出连接态,终端掉线。或者终端上行发送数据,如果发生了无线链路控制层(RadioLinkControl,简称RLC)的自动重传请求(AutomaticRepeatreQuest,简称ARQ)的最大重传,则终端也会主动掉线。但是,如果终端暂时没有发送上行数据到达,而基站侧发现下行RLC层的ARQ最大重传而主动释放终端,而终端没有收到连接释放命令,则导致基站和终端维护的状态不一致,基站侧已经完全释放终端所有信息,但终端还认为在连接态。那么若终端发起上行调度请求,基站不会给予响应。而基站也不会主动调度该终端的下行传输。这相当于终端在网络中长期挂死。There are many reasons for the terminal to go offline. For example, the terminal monitors the downlink signal-to-noise ratio. If the downlink signal-to-noise ratio is lower than a certain threshold for a long time, it determines that the downlink fails, causing the terminal to exit the connection state and the terminal goes offline. Or when the terminal sends data uplink, if the maximum retransmission of the Automatic RepeatreQuest (ARQ) of the radio link control layer (RadioLinkControl, RLC) occurs, the terminal will also take the initiative to go offline. However, if the terminal does not send uplink data for a while, and the base station finds that the ARQ maximum retransmission of the downlink RLC layer is active and releases the terminal, but the terminal does not receive the connection release command, the maintenance status of the base station and the terminal will be inconsistent. Completely release all information of the terminal, but the terminal is still considered to be in the connected state. Then if the terminal initiates an uplink scheduling request, the base station will not respond. And the base station will not actively schedule the downlink transmission of the terminal. This is equivalent to the long-term hanging of the terminal in the network.
在终端侧没有上行业务,而基站侧又已经释放该终端信息的情况下,基站和终端没有业务交互,终端很难获知自身是否在线。When there is no uplink service on the terminal side and the base station has released the terminal information, the base station and the terminal have no service interaction, and it is difficult for the terminal to know whether it is online.
通过上面的描述可知,需要提供一种终端掉线的监测方法,使得终端在和基站没有业务交互时,也具有监测自身是否掉线的能力。It can be seen from the above description that it is necessary to provide a monitoring method for terminal disconnection, so that the terminal has the ability to monitor whether it is disconnected even when there is no service interaction with the base station.
发明内容Contents of the invention
针对现有技术中的缺陷,本发明提供一种终端掉线的监测方法,使得终端在和基站没有业务交互时,也具有监测自身是否掉线的能力。Aiming at the defects in the prior art, the present invention provides a monitoring method for terminal disconnection, so that the terminal has the ability to monitor whether it is disconnected even when there is no service interaction with the base station.
第一方面,本发明提供一种心跳监测方法,包括:In a first aspect, the present invention provides a heartbeat monitoring method, comprising:
在终端与基站交互过程中,所述终端接收所述基站发送的心跳信息,所述心跳信息包括所述基站中与该基站保持连接态的所有终端的标识;During the interaction process between the terminal and the base station, the terminal receives heartbeat information sent by the base station, where the heartbeat information includes identifiers of all terminals in the base station that are in a connected state with the base station;
所述终端确定所述心跳信息中是否有该终端的标识,如果没有,则确定该终端与所述基站断开。The terminal determines whether there is an identifier of the terminal in the heartbeat information, and if not, determines that the terminal is disconnected from the base station.
其中,所述终端接收所述基站发送的心跳信息,所述心跳信息包括所述基站中与该基站保持连接态的所有终端的标识包括:Wherein, the terminal receives the heartbeat information sent by the base station, and the heartbeat information includes identifiers of all terminals in the base station that are connected to the base station, including:
所述终端在连续Q个周期T内t0时刻接收所述基站在所述连续Q个周期T内t0时刻发送的Q个心跳帧,所述每个心跳帧携带部分所述基站中与该基站保持连接态的终端的标识,所述Q个心跳帧中包含有P个互不相同的心跳帧,有Q-P个有重复的心跳帧,所述P个心跳帧携带所有所述基站中与该基站保持连接态的终端的标识,Q≥P≥1。The terminal receives Q heartbeat frames sent by the base station at time t0 in the continuous Q periods T at time t0 , and each heartbeat frame carries part of the The base station maintains the identification of the terminal in the connected state, the Q heartbeat frames include P heartbeat frames that are different from each other, and there are QP heartbeat frames that are repeated, and the P heartbeat frames carry all the heartbeat frames in the base station that are related to the The identifier of the terminal that the base station maintains the connected state, Q≥P≥1.
其中,所述方法还包括:Wherein, the method also includes:
在所述终端判断心跳帧中未收到自身的标识,确定与所述基站断开之后,所述终端向所述基站发送调度请求SR,若所述终端没有收到所述基站的调度授权,则最终确认该终端与所述基站断开。After the terminal determines that it has not received its own identity in the heartbeat frame and determines to disconnect from the base station, the terminal sends a scheduling request SR to the base station. If the terminal does not receive a scheduling authorization from the base station, Then it is finally confirmed that the terminal is disconnected from the base station.
其中,所述方法还包括:Wherein, the method also includes:
在所述终端判断心跳帧中未收到自身的标识,确定与所述基站断开之后,所述终端向所述基站上报调度请求SR,若所述终端收到所述基站的调度授权,则最终确认该终端与所述基站保持连接态,继续保持监测心跳信息。After the terminal determines that it has not received its own identity in the heartbeat frame and determines to disconnect from the base station, the terminal reports a scheduling request SR to the base station, and if the terminal receives a scheduling authorization from the base station, then It is finally confirmed that the terminal remains connected to the base station, and continues to monitor heartbeat information.
第二方面,本发明提供一种心跳发送方法,包括:In a second aspect, the present invention provides a heartbeat sending method, including:
在终端与基站交互过程中,所述基站向所述终端发送心跳信息,所述心跳信息包括所述基站中与该基站保持连接态的所有终端的标识,During the interaction between the terminal and the base station, the base station sends heartbeat information to the terminal, where the heartbeat information includes identities of all terminals in the base station that are connected to the base station,
以使所述终端根据所述心跳信息确定该终端与所述基站是否连接。so that the terminal determines whether the terminal is connected to the base station according to the heartbeat information.
其中,所述基站向所述终端发送心跳信息,所述心跳信息包括所述基站中与该基站保持连接态的所有终端的标识包括:Wherein, the base station sends heartbeat information to the terminal, and the heartbeat information includes identifiers of all terminals in the base station that are connected to the base station, including:
若所述基站中与该基站保持连接态的终端个数不超过第一阈值M,If the number of terminals in the base station in the connected state with the base station does not exceed the first threshold M,
则所述基站在一个周期T内t0时刻向所述终端发送一个心跳帧,所述一个心跳帧中携带所述基站中与该基站保持连接态的所有终端的标识;Then the base station sends a heartbeat frame to the terminal at time t0 in a cycle T, and the heartbeat frame carries the identifiers of all terminals in the base station that are connected to the base station;
若所述基站中与该基站保持连接态的终端个数超过第一阈值M,则所述基站在连续P个周期T内t0时刻向所述终端连续发送P个心跳帧,所述每个心跳帧携带部分所述基站中与该基站保持连接态的终端的标识,所述连续P个心跳帧中包括所述基站中与该基站保持连接态的所有终端的标识,P>1,基站发送完一轮P个心跳帧后,再继续下一轮发送,循环发送。If the number of terminals in the base station that maintains a connection state with the base station exceeds the first threshold M, the base station continuously sends P heartbeat frames to the terminal at time t0 in consecutive P periods T, and each The heartbeat frame carries part of the identifiers of the terminals in the base station that are in the connected state with the base station, and the P consecutive heartbeat frames include the identifiers of all the terminals in the base station that are in the connected state with the base station, P>1, and the base station sends After a round of P heartbeat frames is completed, the next round of sending is continued, and the sending is cyclic.
第三方面,本发明提供一种终端,包括:In a third aspect, the present invention provides a terminal, including:
接收单元,用于在与基站交互过程中,接收所述基站发送的心跳信息,所述心跳信息包括所述基站中与该基站保持连接态的所有终端的标识;The receiving unit is configured to receive heartbeat information sent by the base station during the interaction process with the base station, the heartbeat information including the identifiers of all terminals in the base station that remain connected to the base station;
判断单元,用于判断所述接收单元接收的心跳信息中是否存在该终端的标识;a judging unit, configured to judge whether there is an identifier of the terminal in the heartbeat information received by the receiving unit;
确定单元,用于在所述判断单元确定所述接收单元接收的心跳信息中不存在该终端的标识时,确定终端与所述基站断开。The determining unit is configured to determine that the terminal is disconnected from the base station when the judging unit determines that there is no identifier of the terminal in the heartbeat information received by the receiving unit.
其中,所述终端还包括:Wherein, the terminal also includes:
发送单元,用于在所述确定单元确定终端与所述基站断开之后,向所述基站发送调度请求SR;a sending unit, configured to send a scheduling request SR to the base station after the determining unit determines that the terminal is disconnected from the base station;
所述接收单元,还用于接收所述基站发送的调度授权;The receiving unit is further configured to receive a scheduling grant sent by the base station;
所述判断单元,还用于判断所述接收单元是否接收到所述基站发送的调度授权;The judging unit is further configured to judge whether the receiving unit has received the scheduling grant sent by the base station;
所述确定单元,还用于在所述判断单元确定所述接收单元没有接收到所述基站发送的调度授权,最终确认终端与所述基站断开。The determining unit is further configured to determine in the judging unit that the receiving unit has not received the scheduling grant sent by the base station, and finally confirm that the terminal is disconnected from the base station.
第四方面,本发明提供一种基站,包括:In a fourth aspect, the present invention provides a base station, including:
发送单元,用于在与终端的交互过程中,向所述终端发送心跳信息,所述心跳信息包括基站中与该基站保持连接态的所有终端的标识,以使所述终端根据所述心跳信息确定该终端与所述基站是否连。A sending unit, configured to send heartbeat information to the terminal during interaction with the terminal, the heartbeat information including the identifiers of all terminals in the base station that are connected to the base station, so that the terminal Determine whether the terminal is connected to the base station.
其中,所述基站还包括:Wherein, the base station also includes:
接收单元,用于接收终端发送的调度请求SR;a receiving unit, configured to receive a scheduling request SR sent by a terminal;
所述发送单元,还用于在所述接收单元接收到所述终端发送的调度请求SR后,向所述终端发送调度授权。The sending unit is further configured to send a scheduling grant to the terminal after the receiving unit receives the scheduling request SR sent by the terminal.
由上述技术方案可知,本发明的终端掉线的监测方法,在基站侧已经释放终端,而终端没有收到基站的释放命令的情况下,且在终端没有上行业务要和基站交互的情况下,可以监测到自身是否掉线,且提高了监测的可靠性。It can be seen from the above technical solution that in the monitoring method for terminal disconnection of the present invention, when the base station has released the terminal, but the terminal has not received the release command from the base station, and when the terminal has no uplink service to interact with the base station, Whether it is offline can be monitored, and the reliability of monitoring is improved.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are For some embodiments of the present invention, those skilled in the art can also obtain other drawings based on these drawings without creative work.
图1是本发明实施例一提供的心跳监测方法的流程图;FIG. 1 is a flowchart of a heartbeat monitoring method provided in Embodiment 1 of the present invention;
图2是本发明实施例二提供的心跳发送方法的流程图;FIG. 2 is a flowchart of a heartbeat sending method provided in Embodiment 2 of the present invention;
图3是本发明实施例三提供的终端的结构示意图;FIG. 3 is a schematic structural diagram of a terminal provided in Embodiment 3 of the present invention;
图4是本发明实施例四提供的基站的结构示意图。FIG. 4 is a schematic structural diagram of a base station provided by Embodiment 4 of the present invention.
具体实施方式detailed description
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整的描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
图1示出了本发明实施例一提供的心跳监测方法的流程图,本发明实施例一所述的心跳监测方法包括:Fig. 1 shows the flow chart of the heartbeat monitoring method provided by Embodiment 1 of the present invention, the heartbeat monitoring method described in Embodiment 1 of the present invention includes:
步骤101:在终端与基站交互过程中,所述终端接收所述基站发送的心跳信息,所述心跳信息包括所述基站中与该基站保持连接态的所有终端的标识。Step 101: During the interaction process between the terminal and the base station, the terminal receives the heartbeat information sent by the base station, and the heartbeat information includes the identities of all terminals in the base station that are connected to the base station.
步骤102:所述终端确定所述心跳信息中是否有该终端的标识,如果没有,则确定该终端与所述基站断开。Step 102: The terminal determines whether there is an identifier of the terminal in the heartbeat information, and if not, determines that the terminal is disconnected from the base station.
本实施例所述的终端掉线监测方法,使得终端在和基站没有业务交互时,也具有监测自身是否掉线的能力。The terminal disconnection monitoring method described in this embodiment enables the terminal to have the ability to monitor whether it is disconnected even when there is no service interaction with the base station.
其中,所述终端接收所述基站发送的心跳信息,所述心跳信息包括所述基站中与该基站保持连接态的所有终端的标识包括:Wherein, the terminal receives the heartbeat information sent by the base station, and the heartbeat information includes identifiers of all terminals in the base station that are connected to the base station, including:
所述终端在连续Q个周期T内t0时刻接收所述基站在所述连续P个周期T内t0时刻发送的P个心跳帧,所述每个心跳帧携带部分所述基站中与该基站保持连接态的终端的标识,所述P个心跳帧携带所有所述基站中与该基站保持连接态的终端的标识,Q≥P≥1。The terminal receives P heartbeat frames sent by the base station at time t 0 in the continuous P periods T at time t 0 in consecutive Q periods T, and each heartbeat frame carries part of the The identifiers of the terminals in the connected state in the base station, the P heartbeat frames carry the identifiers of the terminals in the connected state in all the base stations, Q≥P≥1.
所述终端的标识为小区无线网络临时标识C-RNTI。The identifier of the terminal is the cell radio network temporary identifier C-RNTI.
为了减少心跳在基站所占资源开销,同时也为了让终端能较好的省电,定义心跳周期T和周期性的心跳发送时间点。一个心跳周期只在该时间点才发送心跳帧。终端在该时间点默认进入激活状态,监听授权信道。In order to reduce the resource overhead occupied by the heartbeat in the base station, and to enable the terminal to better save power, the heartbeat period T and the periodic heartbeat sending time point are defined. A heartbeat cycle only sends heartbeat frames at this point in time. The terminal enters the active state by default at this time point, and listens to the authorized channel.
一般地,终端进行心跳监测时,终端以小区内可容纳的最大终端数Nmax为准,定义终端的监测窗口为Q*T,Q=Nmax/M,M为每个心跳帧中携带的终端标识的个数,这样可以保证终端不遗漏监测。如果终端在一个监测窗口内没有检测到针对自身的心跳信息,则定判断为一次心跳丢失,即判断终端掉线。当然,也可以当连续发生X次心跳丢失时,才判断终端掉线。Generally, when a terminal performs heartbeat monitoring, the terminal is based on the maximum number of terminals N max that can be accommodated in the cell, and the monitoring window of the terminal is defined as Q*T, Q=N max /M, and M is the number of terminals carried in each heartbeat frame. The number of terminal identifiers, so as to ensure that the terminal does not miss monitoring. If the terminal does not detect its own heartbeat information within a monitoring window, it is determined that a heartbeat is lost, that is, it is determined that the terminal is offline. Of course, it is also possible to determine that the terminal is disconnected only when heartbeat loss occurs continuously for X times.
优选地,所述方法还包括:Preferably, the method also includes:
在所述终端判断心跳帧中未收到自身的标识,确定与所述基站断开之后,为进一步增强确认断开的可靠性,所述终端向所述基站发送调度请求SR,若所述终端没有收到所述基站的调度授权,则最终确认该终端与所述基站断开。After the terminal determines that it has not received its own identity in the heartbeat frame and determines to disconnect from the base station, in order to further enhance the reliability of disconnection confirmation, the terminal sends a scheduling request SR to the base station, if the terminal If no scheduling authorization from the base station is received, it is finally confirmed that the terminal is disconnected from the base station.
优选地,所述方法还包括:Preferably, the method also includes:
在所述终端判断心跳帧中未收到自身的标识,确定与所述基站断开之后,为进一步增强确认断开的可靠性,所述终端向所述基站上报调度请求SR,若所述终端收到所述基站的调度授权,则最终确认该终端与所述基站保持连接态,继续保持监测心跳信息。After the terminal determines that it has not received its own identity in the heartbeat frame and determines to disconnect from the base station, in order to further enhance the reliability of disconnection confirmation, the terminal reports a scheduling request SR to the base station, if the terminal After receiving the scheduling authorization from the base station, it is finally confirmed that the terminal remains connected to the base station, and continues to monitor heartbeat information.
在确认终端与所述基站保持连接态之后,终端获得了基站的上行调度授权,终端发送填充包,由于填充包的发送,基站自然会认定终端无业务数据,会发送关闭授权。After confirming that the terminal remains connected to the base station, the terminal obtains the uplink scheduling authorization from the base station, and the terminal sends a filling packet. Due to the sending of the filling packet, the base station will naturally determine that the terminal has no business data, and will send a shutdown authorization.
图2示出了本发明实施例二提供的心跳发送方法的流程图,本发明实施例二所述的心跳发送方法包括:FIG. 2 shows a flow chart of a heartbeat sending method provided in Embodiment 2 of the present invention. The heartbeat sending method described in Embodiment 2 of the present invention includes:
步骤201:在终端与基站交互过程中,所述基站向所述终端发送心跳信息,所述心跳信息包括所述基站中与该基站保持连接态的所有终端的标识,以使所述终端根据所述心跳信息确定该终端与所述基站是否连接。Step 201: During the interaction process between the terminal and the base station, the base station sends heartbeat information to the terminal, and the heartbeat information includes the identifiers of all terminals in the base station that are connected to the base station, so that the terminal The heartbeat information determines whether the terminal is connected to the base station.
其中,所述基站向所述终端发送心跳信息,所述心跳信息包括所述基站中与该基站保持连接态的所有终端的标识包括:Wherein, the base station sends heartbeat information to the terminal, and the heartbeat information includes identifiers of all terminals in the base station that are connected to the base station, including:
若所述基站中与该基站保持连接态的终端个数不超过第一阈值M,If the number of terminals in the base station in the connected state with the base station does not exceed the first threshold M,
则所述基站在一个周期T内t0时刻向所述终端发送一个心跳帧,所述一个心跳帧中携带所述基站中与该基站保持连接态的所有终端的标识;Then the base station sends a heartbeat frame to the terminal at time t0 in a cycle T, and the heartbeat frame carries the identifiers of all terminals in the base station that are connected to the base station;
若所述基站中与该基站保持连接态的终端个数超过第一阈值M,则所述基站在连续P个周期T内t0时刻向所述终端连续发送P个心跳帧,所述每个心跳帧携带部分所述基站中与该基站保持连接态的终端的标识,所述连续P个心跳帧中携带所述基站中与该基站保持连接态的所有终端的标识,P>1,基站发送完一轮P个心跳帧后,再继续下一轮发送,循环发送。If the number of terminals in the base station that maintains a connection state with the base station exceeds the first threshold M, the base station continuously sends P heartbeat frames to the terminal at time t0 in consecutive P periods T, and each The heartbeat frame carries part of the identifiers of the terminals in the base station that are in the connected state with the base station, and the P consecutive heartbeat frames carry the identifiers of all the terminals in the base station that are in the connected state with the base station, P>1, and the base station sends After a round of P heartbeat frames is completed, the next round of sending is continued, and the sending is cyclic.
P=N/M,N为基站中与该基站保持连接态的终端的个数,M为每个心跳帧中携带的终端标识的个数。P=N/M, where N is the number of terminals in the base station that remain connected to the base station, and M is the number of terminal identifiers carried in each heartbeat frame.
对比可知,由于N≤Nmax,因此P≤Q。It can be seen from the comparison that since N≤N max , P≤Q.
所述终端的标识为小区无线网络临时标识C-RNTI。The identifier of the terminal is the cell radio network temporary identifier C-RNTI.
在心跳周期T的心跳点t0,基站利用授权信道PDCCH或者业务信道PDSCH发送心跳包,心跳信息只是携带基站侧认为当前在线的终端标识C-RNTI。即心跳发送的目的为基站向小区内所有终端广播基站侧认定的在线激活终端信息。根据传输的可靠性决定一个心跳帧内可携带的在线激活的终端标识个数。当一个周期只携带一个终端标识时,以特定终端的C-RNTI加扰,当一个周期携带多个终端的标识时,使用公共C-RNTI加扰,以便所有终端都能解析。At the heartbeat point t 0 of the heartbeat cycle T, the base station sends a heartbeat packet through the authorized channel PDCCH or the traffic channel PDSCH, and the heartbeat information only carries the identifier C-RNTI of the terminal that the base station considers to be online. That is, the purpose of the heartbeat transmission is for the base station to broadcast the online activation terminal information recognized by the base station side to all terminals in the cell. The number of online activated terminal identifiers that can be carried in a heartbeat frame is determined according to the reliability of the transmission. When only one terminal identifier is carried in one period, the C-RNTI of a specific terminal is used for scrambling, and when multiple terminal identifiers are carried in one period, common C-RNTI is used for scrambling so that all terminals can resolve it.
一个心跳周期T携带M个终端的标识,基站下面的小区内共有N个终端接入。所有终端的心跳信息采取时分发送,共P=N/M个心跳周期发送完毕,此定义为一轮心跳发送窗口,长度为P*T。一轮心跳发送完毕,开始下一轮发送,不断循环下去。如果小区内终端数发生变化,则N变化,心跳发送窗口大小发生变化。A heartbeat period T carries the identities of M terminals, and a total of N terminals access in the cell under the base station. The heartbeat information of all terminals is sent in time division, and a total of P=N/M heartbeat cycles are sent. This is defined as a round of heartbeat sending window with a length of P*T. After one round of heartbeat transmission is completed, the next round of transmission starts, and the cycle continues. If the number of terminals in the cell changes, N changes, and the size of the heartbeat sending window changes.
图3示出了本发明实施例三提供的终端的结构示意图,本发明实施例三所述的终端包括接收单元31、判断单元32和确定单元33;FIG. 3 shows a schematic structural diagram of a terminal provided in Embodiment 3 of the present invention. The terminal described in Embodiment 3 of the present invention includes a receiving unit 31, a judging unit 32, and a determining unit 33;
接收单元31,用于在与基站交互过程中,接收所述基站发送的心跳信息,所述心跳信息包括所述基站中与该基站保持连接态的所有终端的标识;The receiving unit 31 is configured to receive heartbeat information sent by the base station during the interaction process with the base station, where the heartbeat information includes the identifiers of all terminals in the base station that remain connected to the base station;
判断单元32,用于判断所述接收单元接收的心跳信息中是否存在该终端的标识;A judging unit 32, configured to judge whether there is an identifier of the terminal in the heartbeat information received by the receiving unit;
确定单元33,用于在所述判断单元确定所述接收单元接收的心跳信息中不存在该终端的标识时,确定终端与所述基站断开。The determining unit 33 is configured to determine that the terminal is disconnected from the base station when the judging unit determines that there is no identifier of the terminal in the heartbeat information received by the receiving unit.
优选地,所述终端还包括:Preferably, the terminal further includes:
发送单元34,用于在所述确定单元确定终端与所述基站断开之后,向所述基站发送调度请求SR;A sending unit 34, configured to send a scheduling request SR to the base station after the determining unit determines that the terminal is disconnected from the base station;
所述接收单元31,还用于接收所述基站发送的调度授权;The receiving unit 31 is further configured to receive a scheduling grant sent by the base station;
所述判断单元32,还用于判断所述接收单元是否接收到所述基站发送的调度授权;The judging unit 32 is further configured to judge whether the receiving unit has received the scheduling grant sent by the base station;
所述确定单元33,还用于在所述判断单元32确定所述接收单元31没有接收到所述基站发送的调度授权,最终确认终端与所述基站断开。The determining unit 33 is further configured to determine at the judging unit 32 that the receiving unit 31 has not received the scheduling authorization sent by the base station, and finally confirm that the terminal is disconnected from the base station.
本实施例所述的终端,可以用来执行实施例一所述的方法,其技术原理和技术效果和实施例一类似,在此不再赘述。The terminal described in this embodiment can be used to execute the method described in Embodiment 1, and its technical principles and technical effects are similar to those in Embodiment 1, and will not be repeated here.
图4示出了本发明实施例四提供的基站的结构示意图,本发明实施例四所述的基站包括发送单元41;FIG. 4 shows a schematic structural diagram of a base station provided in Embodiment 4 of the present invention. The base station described in Embodiment 4 of the present invention includes a sending unit 41;
发送单元41,用于在与终端的交互过程中,向所述终端发送心跳信息,所述心跳信息包括基站中与该基站保持连接态的所有终端的标识,以使所述终端根据所述心跳信息确定该终端与所述基站是否连。The sending unit 41 is configured to send heartbeat information to the terminal during the interaction process with the terminal, the heartbeat information includes the identifiers of all terminals in the base station that are connected to the base station, so that the terminal can transmit the information according to the heartbeat The information determines whether the terminal is connected to the base station.
优选地,所述基站还包括:Preferably, the base station further includes:
接收单元42,用于接收终端发送的调度请求SR;The receiving unit 42 is configured to receive the scheduling request SR sent by the terminal;
所述发送单元41,还用于在所述接收单元42接收到所述终端发送的调度请求SR后,向所述终端发送调度授权。The sending unit 41 is further configured to send a scheduling grant to the terminal after the receiving unit 42 receives the scheduling request SR sent by the terminal.
本实施例所述的基站,可以用来执行实施例二所述的方法,其技术原理和技术效果和实施例二类似,在此不再赘述。The base station described in this embodiment can be used to implement the method described in Embodiment 2, and its technical principle and technical effect are similar to those in Embodiment 2, and will not be repeated here.
以上实施例仅用于说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be described in the foregoing embodiments Modifications are made to the recorded technical solutions, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.
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