CN104053197A - Aircraft switching method in ground-air long term evolution system, and base station and aircraft - Google Patents

Aircraft switching method in ground-air long term evolution system, and base station and aircraft Download PDF

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CN104053197A
CN104053197A CN201310084122.9A CN201310084122A CN104053197A CN 104053197 A CN104053197 A CN 104053197A CN 201310084122 A CN201310084122 A CN 201310084122A CN 104053197 A CN104053197 A CN 104053197A
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cell
aircraft
base station
handover
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CN201310084122.9A
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金巴
高有军
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中国移动通信集团公司
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Abstract

The invention provides an aircraft switching method in a ground-air long term evolution system, and a base station and an aircraft. The method comprises: a first cell base station receiving a measuring report reported by an aircraft about a second cell, wherein the first cell base station is a base station which a first cell belongs to, the first cell is a current service cell of the aircraft, the second cell is a neighboring cell of the first cell, and the measuring report is obtained by the aircraft through measuring when signal quality of the first cell is lower than a preset threshold; and after the first cell base station receives the measuring report, sending a switching command to the aircraft and controlling the aircraft to be switched to the second cell according to confirmation information, obtained in advance, of the second cell. According to the invention, the aircraft switching process can be optimized, and the switching success rate is improved.

Description

地空长期演进系统中飞机器的切换方法、基站及飞行器 Switching method to-air Long-Term Evolution system's aircraft, base stations and aircraft

技术领域 FIELD

[0001] 本发明涉及移动通信技术领域,具体涉及一种地空长期演进系统中飞机器的切换方法、基站及飞行器。 [0001] The present invention relates to the field of mobile communication, particularly relates to a method of switching the LTE system, an aircraft air filter, the base station and the aircraft.

背景技术 Background technique

[0002] 演进分组系统(EPS,Evolved Packet System)是3GPP开发的基于长期演进(LTE,Long Term Evolut1n)系统的网络架构。 [0002] Evolved Packet System (EPS, Evolved Packet System) developed by the 3GPP network architecture is based on a long term evolution (LTE, Long Term Evolut1n) system. 如图1所示,包括演进通用陆地无线接入网络(E-UTRAN, Evolved-Universal Terrestrial Rad1 Access Network)和演进分组核心网(EPC, Evolved Packet Core)。 As shown, comprising an Evolved Universal Terrestrial Radio Access Network (E-UTRAN, Evolved-Universal Terrestrial Rad1 Access Network) and the Evolved Packet Core network (EPC, Evolved Packet Core) 1.

[0003] E-UTRAN是3GPP开发的基于长期演进(LTE,Long Term Evolut1n)系统的网络架构,包括基站(eNB,EvoIved NodeB)和UE等网络实体,用于空中接口上基站和UE之间的用户面和控制面协议处理和数据传送。 [0003] E-UTRAN based on a 3GPP network architecture to develop a long term evolution (LTE, Long Term Evolut1n) system, includes a base station (eNB, EvoIved NodeB) and other network entities UE, for the air interface between a base station and a UE user and control plane processing and data transfer protocols. 其中,MME/S-GW网关与eNB之间的接口称为SI接口,eNB与eNB之间的接口称为X2接口。 Wherein the interface between the MME / S-GW and eNB called SI gateway interface, the interface between the eNB and the eNB is called an X2 interface. UE和eNB之间的接口称为LTE-Uu接口。 The interface between the UE and the eNB is called LTE-Uu interface.

[0004] EPC主要包括移动性管理实体(MME, Mobility Management Entity)、归属签约用户服务器(HSS, Home Subscriber Server)、服务网关(SGW, Serving Gateway)和分组数据网关(PGW, Packet Data Network Gateway)。 [0004] EPC includes a Mobility Management Entity (MME, Mobility Management Entity), home subscriber server (HSS, Home Subscriber Server), serving gateway (SGW, Serving Gateway), and Packet Data Gateway (PGW, Packet Data Network Gateway) .

[0005] 其中,MME是EPS的控制面网络实体,主要负责UE的移动性管理、会话管理、非接入层信令的处理和安全加密功能、信令的合法监听、PGW/SGW/MME的选择功能、告警消息传送、为告警消息选择合适的eNB等。 [0005] wherein, the MME is the EPS network control plane entity responsible for the mobility management of the UE, lawful interception session management, security, and encryption processing function of the non-access stratum signaling, signaling, PGW / SGW / MME of selection function, an alarm message transmitted by the eNB for selecting the appropriate alert message and the like. MME通过Sl-MME接口连接eNB。 ENB MME is connected via Sl-MME interface.

[0006] HSS用于保存用户的签约数据,包括用户标识、手机号码、各种签约的服务质量(QoS, Quality of Service)参数、服务用户的MME和PGff的地址等。 [0006] HSS for storing user subscription data including a user ID, mobile phone number, a variety of quality of service subscription (QoS, Quality of Service) parameters, service users and PGff the MME address.

[0007] S-Gff是EPS的用户面的网络实体,是eNB之间切换的移动性锚点,也是3GPP系统之间切换的移动性锚点,用于执行分组的路由和转发功能、用户面的合法监听、空闲状态UE的下行数据缓存、漫游时家乡路由数据的上下行计费等功能。 [0007] S-Gff EPS network entity is a user plane, a handover between the eNB mobility anchor, the anchor mobile switching between 3GPP systems is, for performing the packet routing and forwarding user plane lawful interception, downlink data cache idle state UE, roaming up and down the line routing data hometown of billing and other functions. S-GW通过Sl-U接口连接eNB。 S-GW interface eNB via Sl-U.

[0008] PGW是EPS网络和分组数据网络如因特网(Internet)相连的网关,主要处理上下行数据流的门限控制、UE IP地址分配、合法监听等功能。 [0008] PGW is EPS network and a packet data network such as the Internet (Internet) gateway connected to the door handle main uplink and downlink data flow control limit, UE IP address allocation, lawful interception functions.

[0009] 在LTE系统中,对于正在通信的移动终端,当它从一个区域移动到另一个区域,为了保持连续性,网络端会根据切换判断策略来控制终端启动切换过程,它是连接状态期间处理的关键过程,必须快而准确,目标小区的选择必须是最佳,要使用户察觉不到。 [0009] In the LTE system, to the mobile terminal is in communication, during when it moves from one area to another area, in order to maintain continuity, the network will be controlled terminal starts a handover procedure according to the handover judgment policy, which is connected state during the processing of the key, you must be fast and accurate to select the target cell must be the best, to make imperceptible the user. 根据对3GPP36系列的协议研究可以得出LTE系统的切换流程,可分为如图2所示的3个过程:测量过程、判决过程和执行过程。 The study protocol 3GPP36 series can be derived handover process of the LTE system can be divided into three processes shown in FIG. 2: the measurement process, and the execution decision process.

[0010] 测量过程主要是根据系统发送的测量重配置消息所提供的邻近小区信息来进行测量,移动台(UE)根据接收到的信息搜索本小区和周围小区,结果可以通过事件或周期性上报给网络侧,供网络端参考来判决。 [0010] The measurement process is mainly reconfiguration message neighboring cell information provided by the measurement system to measure transmitted, the mobile station (UE) according to the received cell information and the surrounding cell search for the present, the result can be reported periodically or by event to the network, for the network to decide reference. 同时基站也不断测量UE的上行链路信号,网络单元此时进入相应的网络判决阶段。 While the base station constantly measures the uplink signal of the UE, the network element at this time into the respective network decision stage. 判决过程是网络端的一个重要功能,对UE上报的事件和内容进行判决,如果不满足门限和条件,则不予理会,如果满足给定的条件,选择好要切换的目标小区,下发物理信道重配置消息给UE,启动切换过程。 Decision process is an important function of the network side, the UE reports event and content decision, if the threshold and the condition is not satisfied, then ignored, if a given condition is satisfied and selected for a handover target cell, issued physical channel reconfiguration message to the UE, initiate the handover procedure. 在网络端给UE发送重配置消息之前,需要对目标小区进行无线链路的建立配置,当配置完成之后再下发消息。 On the network side to the UE before sending the reconfiguration message, a radio link needs to be configured to establish on the target cell, after configuration is completed and then the next message. 此消息里含有目标小区的ID、安全性相关信息、移动控制信息、载波频率以及接入层各子层的新配置信息等。 This message contains the ID in the target cell, security-related information, the movement control information, configuration information for the new carrier frequency, and the access layer and the like of each sub-layer.

[0011] LTE系统的一种切换的具体流程可以包括以下步骤,其中所述的源eNB是指UE的服务小区所属的eNB,目的eNB是指UE切换的目标小区所属的eNB: [0011] A handover process in particular may be an LTE system includes the following steps, wherein the source eNB is the eNB UE refers to the serving cell, the target eNB refers eNB UE handover target cell belongs:

[0012] I)源eNB通过测量控制支配UE的测量过程; [0012] I) by the source eNB a measurement control procedure of the UE measurement govern;

[0013] 2) UE向源eNB发送测量报告; [0013] 2) UE transmits a measurement report to the eNB source;

[0014] 3)源eNB通过UE测量报告、承载业务以及服务信息做切换判决; [0014] 3) the source eNB a measurement report by a UE, bearer service and service information to make a handover decision;

[0015] 4)源eNB向目标eNB发切换请求; [0015] 4) The source eNB sends a handover request to the target eNB;

[0016] 5)目标小区进行接入控制; [0016] 5) the target cell for access control;

[0017] 6)目标eNB向源eNB发出切换请求确认; [0017] 6) The target eNB to the source eNB issues a handover request acknowledgment;

[0018] 7)源eNB向UE发出切换命令并开始将数据包转向目标eNB ; [0018] 7) the source eNB to the UE a handover command sent to the packet and starts turning the target eNB;

[0019] 8)源eNB向目标eNB发送SN Status Transfer (数据包顺序编号)状态信息; [0019] 8) transmits the source eNB to the target eNB SN Status Transfer (packet sequence number) of status information;

[0020] 9)UE与目标ENB做最后的同步,通过RACH进行小区接入; [0020] 9) UE is synchronized with the final target ENB, performed by the cell access the RACH;

[0021] 10)目标eNB给出上行分配信息和时间提前量信息; [0021] 10) gives the target eNB uplink allocation information and timing advance information;

[0022] 11)UE向目标eNB发出切换确认,目标eNB可以向UE发送数据; [0022] 11) UE sent handover acknowledgment to the target eNB, the target eNB may transmit data to the UE;

[0023] 12)目标eNB发出一个PATH SWITCH信息到MME,通知MME UE已经改变了服务小区; [0023] 12) The target eNB sends a PATH SWITCH message to the MME, MME UE notifies the serving cell has changed;

[0024] 13)MME发出一条用户面更新请求到S-GW ; [0024] 13) MME issued a user plane update request to the S-GW;

[0025] 14) S-Gff选择下行数据链路到目标侧; [0025] 14) S-Gff selected downlink data to the target side;

[0026] 15) S-Gff发送一个用户面更新响应到MME ; [0026] 15) S-Gff sends a user plane update response to the MME;

[0027] 16) MME 通过PATH SWITCH ACK 确认PATH SWITCH 信息; [0027] 16) MME confirmed by the PATH SWITCH message PATH SWITCH ACK;

[0028] 17)通过发送RELEASE RESOURCE,目标eNB通知源eNB切换成功,并释放资源; [0028] 17) by sending RELEASE RESOURCE, the target eNB notifies the source eNB handover is successful, and release resources;

[0029] 18)接收到RELEASE RESOURCE消息,源eNB可以释放和无线、用户面相关的资源。 [0029] 18) receiving the RELEASE RESOURCE message, the source eNB can release radio and the user plane related resources.

[0030] 从LTE切换信令流程可以看得出现有LTE切换信令交互相当多。 [0030] LTE handover signaling from the conventional LTE handover procedure can see considerable signaling interaction. 发明人经研究发现,目前LTE切换失败或切换发生无线链路失败(RLF)主要有两个原因,一个原因是切换参数设置的不合理,另一个原因是切换过程信令发送失败。 The inventors have found that by the current LTE handover failure or radio link failure handover occurs (the RLF) for two main reasons, one reason is unreasonable handover parameter settings, another reason is handover procedure failed signaling. 换句话说,如果可以降低切换过程信令发送失败或者减少过程信令流程,就可以有效地优化并提高LTE切换成功率。 In other words, if the handover procedure can be reduced to reduce the signaling process fails or the signaling procedure, it can effectively optimize and improve LTE handover success rate.

发明内容 SUMMARY

[0031] 有鉴于此,本发明实施例的目的是提供一种地空LTE系统中飞机器的切换方法、基站及飞行器,优化飞行器的切换过程提高切换成功率。 [0031] In view of this, an object of embodiments of the present invention to provide a switch-to-air LTE system's Aircraft, the base station and the aircraft, the aircraft handover process optimization to improve the successful handover probability.

[0032] 为解决上述技术问题,本发明实施例提供方案如下: [0032] To solve the above problems, the present invention provides the following solutions:

[0033] 一种地空LTE系统中飞机器的切换方法,所述地空LTE系统包括有多个基站和飞行器,所述飞行器的飞行路径被多个基站的小区所覆盖,且预先将覆盖所述飞行路径的多个小区的配置信息下发给所述飞行器; [0033] A ground-air aircraft LTE system's switching method, to air the LTE system includes a plurality of base stations and aircraft, the flight path of the aircraft is covered with a plurality of base stations in a cell, and will cover the previously send configuration information of the aircraft at a plurality of cells of said flight path;

[0034] 所述切换方法包括: [0034] The handover method comprising:

[0035] 第一小区基站接收飞行器上报的第二小区的测量报告,其中,第一小区基站是第一小区所属的基站,所述第一小区是所述飞行器的当前服务小区,所述第二小区是第一小区的邻小区,所述测量报告是所述飞行器在第一小区的信号质量低于预设门限时测量获得的; [0035] The first cell of the second cell base station receives the measurement report reported by the aircraft, wherein the first station is a base station of the first cell belongs cell, the first cell is a cell currently serving the aircraft, the second cell is a cell of a first neighbor cell, the measurement report of the aircraft is the signal quality of the first cell is lower than a preset threshold obtained by the measurement;

[0036] 所述第一小区基站接收到所述测量报告后,向所述飞行器发送切换命令,控制所述飞行器利用预先获得的第二小区的配置信息切换至所述第二小区。 [0036] The cell of the first base station after receiving the measurement report, send a handover command to the aircraft, the aircraft control configuration information of the second cell using the previously obtained switched to the second cell.

[0037] 本发明实施例提供的地空LTE系统中飞机器的另一切换方法,包括: [0037] Another embodiment of the method of switching the LTE system air provided by the embodiment of the present invention, an aircraft, comprising:

[0038] 第二小区基站接收第一小区基站发送的数据包顺序编号状态SN StatusTransfer信息,所述SN Status Transfer信息是第一小区基站在向飞行器发送切换命令之后向第二小区基站发送的,所述切换命令是第一小区基站接收到飞行器在第一小区的信号质量低于预设门限时上报的第二小区的测量报告后发送的,其中第一小区是飞行器的当前服务小区,第二小区是第一小区的邻小区; Packet sequence number status information SN StatusTransfer [0038] The second base station receives the cell base station transmits a first cell of the SN Status Transfer message is sent by the first cell to the second cell base station after sending the handover command to the aircraft, the said first cell after the handover command to the aircraft base station receives the signal quality of the first cell is lower than a preset threshold reporting a measurement report sent by the second cell, wherein the current serving cell is the first cell of the aircraft, a second cell the first cell is the neighboring cell;

[0039] 第二小区基站接收第一小区基站转发的所述飞行器的下行数据包; [0039] The second base station receives a first cell-cell downlink data packet forwarded by the base station of the aircraft;

[0040] 第二小区基站接收所述飞行器根据预先获得的第二小区的配置信息发起的接入请求,将所述飞行器切换至所述第二小区。 [0040] The second cell base station receives the access request according to an aircraft configuration information of the second cell is obtained in advance initiated, the vehicle is switched to the second cell.

[0041] 本发明实施例提供的地空LTE系统中飞机器的又一切换方法,包括: [0041] A further embodiment of the handover method in an LTE system air provided by an aircraft of the present invention, comprising:

[0042] 所述飞行器在第一小区的信号质量低于预设门限时,测量获得第二小区的测量报告并上报至第一小区基站,其中第一小区基站是第一小区所属的基站,第一小区是所述飞行器的当前服务小区,第二小区是第一小区的邻小区; [0042] In the signal quality of the first cell of the aircraft is below a preset threshold, obtain a measurement report reported by the second cell to the first cell and a base station, wherein the base is a base station of the first cell of the first cell belongs, the first cell is a current serving cell of the aircraft, a second cell neighboring a first cell is the cell;

[0043] 所述飞行器接收所述第一小区基站在接收到所述测量报告后发送的切换命令; [0043] The aircraft receiving said first cell base station receiving the handover command transmitted after the measurement report;

[0044] 所述飞行器根据所述切换命令,利用预先获得的第二小区的配置信息切换至所述第二小区。 [0044] The aircraft according to the handover command, the configuration information of the second cell using a pre-acquired handover to the second cell.

[0045] 本发明实施例提供了一种地空LTE系统中的第一小区基站,所述地空LTE系统包括有多个基站和飞行器,所述飞行器的飞行路径被多个基站的小区所覆盖,且所述飞行器预先获得覆盖所述飞行路径的多个小区的配置信息; [0045] The embodiment provides a base station for a first cell-to-air LTE system according to the present invention, the air to the LTE system comprises a plurality of base stations and aircraft, the flight path of the aircraft is covered by a cell of the plurality of base stations and the aircraft configuration information obtained in advance of the flight path covering a plurality of cells;

[0046] 所述第一小区基站包括: [0046] The cell of the first base station comprises:

[0047] 接收单元,用于接收飞行器上报的第二小区的测量报告,其中,第一小区基站是第一小区所属的基站,所述第一小区是所述飞行器的当前服务小区,所述第二小区是第一小区的邻小区,所述测量报告是所述飞行器在第一小区的信号质量低于预设门限时测量获得的; [0047] a receiving unit, a second cell for a measurement report reported by the receiving aircraft, wherein the first station is a base station of the first cell belongs cell, the first cell is a cell currently serving the aircraft, the second two cell is a neighboring cell of the first cell, the measurement report of the aircraft is the signal quality of the first cell is lower than a preset threshold obtained by the measurement;

[0048] 切换控制单元,用于在所述接收单元接收到所述测量报告后,向所述飞行器发送切换命令,控制所述飞行器利用预先获得的第二小区的配置信息切换至所述第二小区。 [0048] The switching control unit configured to, after the receiving unit receives the measurement report, send a handover command to the aircraft, the aircraft control using the configuration information of the second cell is switched to the previously obtained second district.

[0049] 本发明实施例提供的地空LTE系统中的第二小区基站包括: [0049] The second embodiment of the present invention, cell base station to provide air LTE system in the embodiment comprises:

[0050] 第一接收单元,用于接收第一小区基站发送的数据包顺序编号状态SN StatusTransfer信息,所述SN Status Transfer信息是第一小区基站在向飞行器发送切换命令之后向第二小区基站发送的,所述切换命令是第一小区基站接收到飞行器在第一小区的信号质量低于预设门限时上报的第二小区的测量报告后发送的,其中第一小区是飞行器的当前服务小区,第二小区是第一小区的邻小区; [0050] a first receiving means for receiving a first base station transmits the cell packet sequence number SN StatusTransfer status information, the SN Status Transfer message is transmitted a first cell to the second cell base station after sending a handover command to the aircraft of the handover command is transmitted to the aircraft after receiving the first signal quality is lower than a preset threshold cell measurement report reported by the second cell to the first cell station, wherein the first cell is the cell currently serving the aircraft, the second cell is the first cell of the neighboring cell;

[0051] 第二接收单元,用于接收第一小区基站转发的所述飞行器的下行数据包; Downlink data of the aircraft [0051] The second receiving unit for receiving a first packet forwarded by the base station cell;

[0052] 接入单元,用于接收所述飞行器根据预先获得的第二小区的配置信息发起的接入请求,将所述飞行器切换至所述第二小区。 [0052] The access unit for an aircraft according to the access request receiving configuration information of the second cell is obtained in advance initiated, the vehicle is switched to the second cell.

[0053] 本发明实施例提供的地空LTE系统中的飞行器包括: [0053] LTE air to an aircraft system according to an embodiment of the present invention comprises:

[0054] 测量单元,用于在第一小区的信号质量低于预设门限时,测量获得第二小区的测量报告并上报至第一小区基站,其中第一小区基站是第一小区所属的基站,第一小区是所述飞行器的当前服务小区,第二小区是第一小区的邻小区; [0054] The measurement unit, a signal quality for a first cell is lower than a preset threshold, obtain a measurement report reported by the second cell to the first cell and a base station, wherein the base is a base station a first cell of a first cell belongs the first cell of the aircraft is the current serving cell, a second cell neighboring a first cell is the cell;

[0055] 接收单元,用于接收所述第一小区基站在接收到所述测量报告后发送的切换命令; [0055] The receiving means for receiving a handover command from the base station of the first cell after receiving the measurement report;

[0056] 切换单元,用于根据所述切换命令,利用预先获得的第二小区的配置信息切换至所述第二小区。 [0056] a switching unit, according to the handover command, the configuration information of the second cell using a pre-acquired handover to the second cell.

[0057] 本发明实施例还提供了一种地空LTE系统,其特征在于,包括以上所述的第一小区基站、第二小区基站及飞行器。 Example [0057] The present invention further provides an LTE-to-air system, characterized in that said first cell comprising the above base station, the second cell base station and the aircraft.

[0058] 从以上所述可以看出,本发明实施例提供的地空LTE系统中飞机器的切换方法、基站及飞行器,可以简化切换信令流程,进而避免切换过程中发生RLF的概率,提高切换成功率。 [0058] As can be seen from the above, the air provided by the LTE system in the aircraft's handover method, a base station and an aircraft embodiment of the present invention can be simplified signaling flow switch, thereby avoiding the probability of occurrence of the RLF in the handover process, to improve the handover success rate.

附图说明 BRIEF DESCRIPTION

[0059] 图1为现有技术的LTE系统的网络架构示意图; Network architecture diagram [0059] FIG 1 LTE system to the prior art;

[0060] 图2为现有技术的LTE系统的切换流程; [0060] FIG. 2 is a handover process of the LTE system in the prior art;

[0061] 图3为本发明实施例中地空LTE系统中飞机飞行路线覆盖示意图; [0061] Figure 3 embodiment the air an LTE system aircraft flight path covered schematic embodiment of the present invention;

[0062] 图4为本发明实施例提供的一种切换方法的流程示意图; [0062] FIG. 4 is a schematic flow of a handover method according to an embodiment of the present invention;

[0063] 图5为本发明实施例提供的另一种切换方法的流程示意图; [0063] Fig 5 a schematic flow diagram of another handover method according to an embodiment of the present invention;

[0064] 图6为本发明实施例提供的又一种切换方法的流程示意图; [0064] and FIG. 6 a schematic flow chart of a handover method according to an embodiment of the present invention;

[0065] 图7为本发明实施例的切换方法的总体流程示意图。 [0065] Figure 7 a schematic view of the overall flow of a handover method according to an embodiment of the present invention.

具体实施方式 Detailed ways

[0066] 为使本发明的目的、技术方案和优点更加清楚,下面将结合附图及具体实施例对本发明进行详细描述。 [0066] To make the objectives, technical solutions, and advantages of the invention more clearly, the accompanying drawings and the following specific embodiments of the present invention will be described in detail.

[0067] 地空LTE系统包括有多个基站(eNB)和飞行器,飞行器的飞行路径被多个基站的小区所覆盖。 [0067] LTE-to-air system comprises a plurality of base stations (eNB) and the aircraft, the flight path of the aircraft is a plurality of cells covered by base stations. 请参照图3,图3示出了地空LTE系统中的基站I〜3以及对应的celll〜3的覆盖示意。 Referring to FIG. 3, FIG. 3 shows a base station-to-air I~3 LTE system and the corresponding cover a schematic celll~3. 地空LTE系统中路线覆盖和一般LTE覆盖有以下区别: Air line to cover the LTE system and LTE coverage generally with the following differences:

[0068] I) UE (飞机器)只有一条路径和一种行进方向; [0068] I) UE (aircraft) only has one path, and one direction of travel;

[0069] 2)在地空覆盖情况下UE的行进路线及切换小区可以事先知道。 [0069] 2) the route of the UE in the empty cell coverage and handover can be known in advance.

[0070] 因此,飞行器在两个相邻的小区之间的切换信令流程可以做得简单而避免现有的LTE切换信令复杂度。 [0070] Thus, the aircraft handover signaling flow between two adjacent cells can be made simple and avoids the existing LTE handover signaling complexity. 本发明实施例针对飞行器具有的预定飞行线路的特点,提出一种简化切换过程中的切换方法,以提高地空LTE系统的切换成功率。 Embodiments of the invention having the characteristics of a predetermined flight path of the aircraft, the proposed handover method in a simplified handover process, to improve the success rate of handover to the LTE system air.

[0071] 本发明实施例中,所述地空LTE系统包括有MME、多个基站和飞行器,所述飞行器的飞行路径被多个基站的小区所覆盖。 [0071] Example embodiments of the present invention, the air to the MME of the LTE system includes, a plurality of base stations and aircraft, the flight path of the aircraft is covered by a cell of the plurality of base stations. 作为一种实现方式,所述飞行路径上的多个基站均连接至同一个MME,且相邻基站之间通过X2接口连接。 As one implementation, the plurality of base stations are connected to a flight path with the MME, and the connection between adjacent base stations via an X2 interface. 作为另一种实现方式,所述多个基站中存在有连接至不同MME连接的相邻基站,该相邻基站中的第一基站连接至第一MME,第二基站连接至第二MME,且,第一基站与第一MME之间的数据,通过第二MME与第二基站之间的SI接口,透传至第二基站。 As another implementation, there is a plurality of base stations connected to different neighboring base station connected MME, a first base station connected to a first base station adjacent to the MME, the second base station is connected to the second MME, and the data between the first base station and the first MME, SI through the interface between the MME and the second base station a second, transmitted through the second base station.

[0072] 本发明实施例中,在飞行器起飞之前,可以预先将覆盖所述飞行路径的多个小区的配置信息下发给所述飞行器,所述配置信息具体可以包括:所述多个小区的小区ID、各个小区的随机接入信道资源分配信息、测量配置参数、RACH资源分配等。 [0072] The embodiments of the present invention, prior to aircraft takeoff, the cover may be previously sent to the aircraft configuration information of the plurality of cells under the flight path, the configuration information may specifically comprise: a plurality of cells a cell ID, a random access channel resource allocation information of each cell, measurement configuration parameters, the RACH resource allocation.

[0073] 以下描述中,第一小区是指飞行器的当前服务小区,第一小区基站是第一小区所属的基站(即源基站),第二小区是指飞行器切换的目标小区,第二小区基站是第二小区所属的基站(即目的基站),所述第二小区是第一小区的邻小区。 [0073] In the following description, it refers to a first cell of the current serving cell of the aircraft, a first cell base station is a base station (i.e., the source base station) belongs to a first cell, a second cell means handover target cell of the aircraft, the second cell base station the second cell is a base station belongs, (i.e., target base station), the first cell and the second cell is a neighboring cell.

[0074] 以下将分别从源基站、目的基站以及飞行器的角度,说明本发明实施例地空LTE系统中飞机器的切换方法。 [0074] Hereinafter, respectively, from the perspective of the source base station, the target base station and the aircraft, the handover method described LTE system, an aircraft air filter embodiment of the present invention.

[0075] 首先,从源基站(即第一小区基站)的角度,说明本发明实施例的切换流程。 [0075] First, from the source base station (i.e., a first base station cell) angle handover procedure described embodiments of the present invention. 请参照图4,本发明实施例提供的地空LTE系统中飞机器的切换方法,包括以下步骤: Referring to FIG 4, the handover method of the aircraft's air LTE system according to the embodiment of the present invention, comprising the steps of:

[0076] 步骤41,第一小区基站接收飞行器上报的第二小区的测量报告,其中,所述测量报告是所述飞行器在第一小区的信号质量低于预设门限时测量获得的。 [0076] Step 41, a first cell base station receives a measurement report reported by the aircraft of the second cell, wherein the measurement report that the signal quality of the first aircraft in a cell is lower than a preset threshold measurements obtained.

[0077] 这里,飞行器在第一小区的信号质量低于预设门限时,可以根据事先获得的小区的配置信息,对小区列表中的小区进行测量,获得相应的测量报告。 [0077] Here, the signal quality of the first cell of the aircraft is below a preset threshold, it can be, for cell list for cell measurement information obtained in advance according to the configuration of the cell, to obtain the corresponding measurement report. 例如,小区列表中可以包括有当前服务小区在飞行路径上的邻小区的信息,飞行器根据这些邻小区的信息进行测量,获得满足信号质量要求的邻小区的测量报告并上报给第一小区基站。 For example, the list of cell information may include the current serving cell on the neighbor cell in the flight path, the aircraft is measured according to the information of the neighbor cell, the signal quality measurement reports are to meet the requirements of the neighbor cells and reports to the first cell of the base station.

[0078] 步骤42,第一小区基站接收到所述测量报告后,向所述飞行器发送切换命令,控制所述飞行器利用预先获得的第二小区的配置信息切换至所述第二小区。 [0078] step 42, a first cell base station after receiving the measurement report, send a handover command to the aircraft, the aircraft control configuration information of the second cell using the previously obtained switched to the second cell.

[0079] 这里,第一小区基站在接收到测量报告后,进行切换判断,判断策略本发明不做具体限定。 [0079] Here, the first cell base station after receiving the measurement report, the handover determination, determination strategy of the present invention is not specifically limited. 在允许飞行器由第一小区切换至第二小区时,第一小区基站下发所述切换命令,其中,所述切换命令可以携带在第一小区基站下发的物理信道重配置消息中发送给飞行器,以启动切换过程。 When switching from the first cell to allow the aircraft to a second cell, the handover command sent at a first cell station, wherein the handover command issued may carry physical channel reconfiguration message sent to the aircraft at a first cell station to start the switching process.

[0080] 第一小区基站在发送所述切换命令之后,还可以进一步向第二小区基站发送数据包顺序编号状态(SN Status Transfer)信息,以及向第二小区基站转发所述飞行器的下行数据包,以进行切换的准备工作。 [0080] a first base station cell after transmitting the handover command may further information, and forwarding the downlink packet data of the aircraft to a second cell to the second cell base station transmits packet sequence number state (SN Status Transfer) , to switch the preparatory work.

[0081] 在上述步骤42之后,若所述飞行器成功切换至所述第二小区,上述方法还可以包括以下步骤: [0081] After the above step 42, if the aircraft successfully switched to the second cell, the above-described method may further comprise the step of:

[0082] 步骤43,第一小区基站接收第二小区基站发送的资源释放消息,释放与所述飞行器相关的资源。 [0082] Step 43, the base station receives a first cell of the second cell base station sends resource release message to release resources associated with the aircraft.

[0083] 上述流程中,第一小区基站(即源基站)在接收到飞行器的测量报告后,并没有像现有技术那样向第二小区基站(即目的基站)发送切换请求,而是直接向飞行器(即终端UE)发送切换命令,第二小区基站(即目的基站)也无需向第一小区基站(即源基站)发送切换请求确认,而是根据飞行器发送的接入请求实现飞行器由第一小区至第二小区的切换,从而大大简化了切换信令流程,进而可以避免切换过程中发生RLF的概率,提高切换成功率。 [0083] The above-described process, a first base station cell (i.e., the source base station) after receiving the measurement report of the aircraft, and not as a second cell transmits a handover request to the base station (i.e., target base station) as in the prior art, but directly to the aircraft (i.e., the terminal UE) transmits a handover command, a second cell base station (i.e., target base station) and without the base station to the first cell (i.e., the source base station) transmits a handover request acknowledgment, but an aircraft according to the access request sent by a first aircraft to achieve cell handover to a second cell, which greatly simplifies the signaling flow switch, and thus avoid the probability of occurrence of RLF during handover, handover success rate increases.

[0084] 请参照图5,从目的基站(即第二小区基站)的角度,本发明实施例提供的地空LTE系统中飞机器的切换方法,包括以下步骤: [0084] Referring to FIG 5, from the destination base station (i.e., a second cell base station) angle, the switching method of the aircraft's air LTE system according to the embodiment of the present invention, comprising the steps of:

[0085] 步骤51,第二小区基站接收第一小区基站发送的数据包顺序编号状态(SNStatusTransfer)信息,所述SN Status Transfer信息是第一小区基站在向飞行器发送切换命令之后向第二小区基站发送的,所述切换命令是第一小区基站接收到飞行器在第一小区的信号质量低于预设门限时上报的第二小区的测量报告后发送的,其中第一小区是飞行器的当前服务小区,第二小区是第一小区的邻小区; [0085] Step 51, the base station receives a second cell state of the first packet sequence number transmitted by cell base station (SNStatusTransfer) information, the SN Status Transfer message is a first cell to the second cell base station after sending a handover command to the aircraft sent by the first cell after the handover command to the aircraft base station receives the signal quality of the first cell is lower than a preset threshold reporting a measurement report sent by the second cell, wherein the current serving cell is the first cell of the aircraft , a second cell neighboring a first cell is the cell;

[0086] 步骤52,第二小区基站接收第一小区基站转发的所述飞行器的下行数据包; The aircraft [0086] Step 52, the base station receives a first cell of the second cell base station to forward the downlink data packet;

[0087] 步骤53,第二小区基站接收所述飞行器根据预先获得的第二小区的配置信息发起的接入请求,将所述飞行器切换至所述第二小区。 [0087] Step 53, the base station receives a second cell vehicle according to the configuration information of the second access request cell obtained in advance initiated, the vehicle is switched to the second cell.

[0088] 在所述飞行器成功切换至所述第二小区之后,上述方法还可以包括: After the [0088] successful handover to the second cell in the aircraft, the above-described method may further comprise:

[0089] 步骤54,第二小区基站向第一小区基站发送资源释放消息,触发所述第一小区基站释放与所述飞行器相关的资源。 [0089] Step 54, the second cell base station sends a resource release message to the first base station cell, triggering the first cell associated with the base station releases the resource of the aircraft.

[0090] 请参照图6,从终端(即飞行器)的角度,本发明实施例提供的地空LTE系统中飞机器的切换方法,包括以下步骤: [0090] Referring to FIG 6, from the terminal (i.e., aircraft), the handover method of the aircraft's air LTE system according to the embodiment of the present invention, comprising the steps of:

[0091] 步骤61,飞行器在第一小区的信号质量低于预设门限时,测量获得第二小区的测量报告并上报至第一小区基站,其中第一小区基站是第一小区所属的基站,第一小区是所述飞行器的当前服务小区,第二小区是第一小区的邻小区; [0091] Step 61, the signal quality of the first cell of the aircraft is below a preset threshold, obtain a measurement report reported by the second cell to the first cell and a base station, wherein the first station is a base station of the first cell in the cell belongs, the first cell of the aircraft is the current serving cell, a second cell neighboring a first cell is the cell;

[0092] 步骤62,飞行器接收所述第一小区基站在接收到所述测量报告后发送的切换命令; [0092] Step 62, the aircraft receives a first cell to a base station in a handover command received after transmitting the measurement report;

[0093] 步骤63,飞行器根据所述切换命令,利用预先获得的第二小区的配置信息切换至所述第二小区。 [0093] Step 63, the aircraft according to the handover command, the configuration information of the second cell using a pre-acquired handover to the second cell.

[0094] 本实施例中,还可以预先给飞行器配置唯一的UE CONTEXT (UE上下文)并发送给飞行路径中的所有基站。 [0094] In this embodiment, the aircraft may also be pre-configured to only UE CONTEXT (UE context) and sent to all base stations in the flight path. 这样,若所述飞行器在切换过程中发生无线链路失败,所述方法还包括: Thus, if the aircraft radio link failure occurred during handover, the method further comprising:

[0095] 步骤64,所述飞行器利用预先获得的第二小区的配置信息,直接向第二小区发起重建请求,重新接入所述第二小区。 [0095] Step 64, the aircraft using the configuration information of the second cell is obtained in advance, initiating reestablishment request directly to the second cell, the second cell re-access. 此时,重建请求中携带有预先配置的UE CONTEXT,第二小区接收到该重建请求后,即可根据该UEC0NTEXT实现飞行器的接入。 At this time, reestablishment request carries the UE CONTEXT preconfigured, a second cell receiving the access request after the reconstruction, the aircraft can be realized based on the UEC0NTEXT.

[0096] 以上分别从源基站、目的基站和飞行器角度说明了本发明实施例的切换流程。 [0096] or more, respectively, from a source base station, a target base station and an aircraft angle of the handover procedure described embodiments of the present invention. 下面进一步结合图7,说明对本发明实施例切换的总体流程。 Further in connection with Figure 7 below, the overall flow embodiment described embodiment of the present invention handover. 图7中,UE表示飞行器,S-eNB表示第一小区基站(即源基站),T-eNB表示第二小区基站(即目的基站)。 In FIG. 7, UE represents the aircraft, S-eNB indicates a first cell base station (i.e., the source base station), T-eNB cell represents a second base station (i.e., target base station). 如图7所示,本实施例的切换流程包括以下步骤: 7, the handover procedure according to the present embodiment includes the following steps:

[0097] 701,初始阶段,UE的服务小区为S-eNB对应的小区,UE与S_eNB交换上下行的用户数据包(User Packet Data DL/UP); [0097] 701, the initial stage, the UE's serving cell corresponding to the S-eNB to a cell, the UE with the S_eNB exchange uplink and downlink user data packets (User Packet Data DL / UP);

[0098] 702,UE检测到服务小区信号质量已经低于预设条件时,根据预先获得的飞行路径上的小区配置信息,对服务小区在飞行路径上的相邻小区进行测量,获得测量报告,并上报给S-eNB ; [0098] 702, UE detects the signal quality of the serving cell has fallen below a preset condition, the configuration of the cell on the flight path information obtained in advance, the serving cell neighbor cell in the flight path is measured, which measurement reports, and reported to the S-eNB;

[0099] 703,S-eNB根据UE上报的测量报告,判断是否需要执行切换,在需要切换时,通过下发RRC重配置消息,通知UE切换至T-eNB对应的小区; [0099] 703, S-eNB according to the measurement report reported by the UE, determine whether to perform handover when handover is required reconfiguration message issued by the RRC, UE to notify T-eNB corresponding to the cell;

[0100] 704〜705,S-eNB将UE的SN Status Transfer (数据包顺序编号)状态信息和下行数据包转向T-eNB ; [0100] 704~705, S-eNB of the UE SN Status Transfer (packet sequence number) and the status information of downlink data packets steering T-eNB;

[0101] 706,UE接收到上述重配置消息后,与T-eNB进行同步处理,通过RACH进行小区接A ; After [0101] 706, UE receives the reconfiguration message, and the T-eNB sync, then the cell A performed by the RACH;

[0102] 707,UE通过RRC重配置完毕消息向T_eNB发出切换确认,指示目标eNB可以向UE发送数据; [0102] 707, UE through the RRC reconfiguration complete message sent handover acknowledgment, indicating that the target eNB may send data to the UE to the T_eNB;

[0103] 708〜709,T-eNB发出一个PATH SWITCH信息到MME,通知MME UE已经改变了服务小区;MME 通过PATH SWITCH ACK 确认PATH SWITCH 信息; [0103] 708~709, T-eNB sends a PATH SWITCH message to the MME, the notification service MME UE has changed cell; PATH SWITCH message acknowledgment by the MME PATH SWITCH ACK;

[0104] 710,UE 与T-eNB 交换上下行的用户数据包(User Packet Data DL/UP); [0104] 710, UE uplink and downlink user data packets (User Packet Data DL / UP) and the T-eNB exchange;

[0105] 711, T-eNB通过发送RELEASE RESOURCE,通知S_eNB切换成功,指示S_eNB释放相关资源。 [0105] 711, T-eNB by sending RELEASE RESOURCE, S_eNB handover success notification indicating S_eNB to release resources.

[0106] 本实施例还提供了在地空LTE系统中实现上述各流程的基站、飞行器的结构,所述地空LTE系统包括有多个基站和飞行器,所述飞行器的飞行路径被多个基站的小区所覆盖,且所述飞行器预先获得覆盖所述飞行路径的多个小区的配置信息。 [0106] LTE system according to the present embodiment further provides a base station to realize the above-described air flow in the LTE system, the structure of the aircraft, the air-ground and comprises a plurality of base stations of the aircraft, the flight path of the aircraft by a plurality of base stations the cell is covered, and the aircraft configuration information obtained in advance a plurality of cells covering the flight path.

[0107] 其中,本发明实施例提供的第一小区基站包括: [0107] wherein the first base station cell according to an embodiment of the present invention comprises:

[0108] 接收单元,用于接收飞行器上报的第二小区的测量报告,其中,第一小区基站是第一小区所属的基站,所述第一小区是所述飞行器的当前服务小区,所述第二小区是第一小区的邻小区,所述测量报告是所述飞行器在第一小区的信号质量低于预设门限时测量获得的; [0108] a receiving unit, a second cell for a measurement report reported by the receiving aircraft, wherein the first station is a base station of the first cell belongs cell, the first cell is a cell currently serving the aircraft, the second two cell is a neighboring cell of the first cell, the measurement report of the aircraft is the signal quality of the first cell is lower than a preset threshold obtained by the measurement;

[0109] 切换控制单元,用于在所述接收单元接收到所述测量报告后,向所述飞行器发送切换命令,控制所述飞行器利用预先获得的第二小区的配置信息切换至所述第二小区。 [0109] The switching control unit configured to, after the receiving unit receives the measurement report, send a handover command to the aircraft, the aircraft control using the configuration information of the second cell is switched to the previously obtained second district.

[0110] 优选地,上述第一小区基站还可以包括:发送单元,用于在所述切换控制单元发送所述切换命令之后,向第二小区基站发送数据包顺序编号状态SN Status Transfer信息,以及向第二小区基站转发所述飞行器的下行数据包。 [0110] Preferably, the first cell base station may further comprise: a transmission unit configured to control the switching unit after transmitting the handover command, the base station transmits packet data to the second cell sequence number SN Status Transfer status information, and the aircraft forwards downlink data packets to the second cell base station.

[0111] 优选地,上述第一小区基站还可以包括:释放单元,用于接收第二小区基站在所述飞行器成功切换至所述第二小区之后发送的资源释放消息,释放与所述飞行器相关的资源。 [0111] Preferably, the first cell base station may further comprise: releasing unit, configured to receive a successful handover to the second cell base station in the aircraft of the second cell after transmitting the resource release message associated with the release of the aircraft H.

[0112] 本发明实施例提供的第二小区基站包括: [0112] The second cell base station according to an embodiment of the present invention comprises:

[0113] 第一接收单元,用于接收第一小区基站发送的数据包顺序编号状态SN StatusTransfer信息,所述SN Status Transfer信息是第一小区基站在向飞行器发送切换命令之后向第二小区基站发送的,所述切换命令是第一小区基站接收到飞行器在第一小区的信号质量低于预设门限时上报的第二小区的测量报告后发送的,其中第一小区是飞行器的当前服务小区,第二小区是第一小区的邻小区; [0113] a first receiving means for receiving a first base station transmits the cell packet sequence number SN StatusTransfer status information, the SN Status Transfer message is transmitted a first cell to the second cell base station after sending a handover command to the aircraft of the handover command is transmitted to the aircraft after receiving the first signal quality is lower than a preset threshold cell measurement report reported by the second cell to the first cell station, wherein the first cell is the cell currently serving the aircraft, the second cell is the first cell of the neighboring cell;

[0114] 第二接收单元,用于接收第一小区基站转发的所述飞行器的下行数据包; Downlink data of the aircraft [0114] The second receiving unit, configured to receive a first cell base station forwards the packet;

[0115] 接入单元,用于接收所述飞行器根据预先获得的第二小区的配置信息发起的接入请求,将所述飞行器切换至所述第二小区。 [0115] an access unit for an aircraft according to the access request receiving configuration information of the second cell is obtained in advance initiated, the vehicle is switched to the second cell.

[0116] 优选地,上述第二小区基站还包括: [0116] Preferably, the second cell base station further comprises:

[0117] 释放单元,用于在所述飞行器成功切换至所述第二小区之后,向第一小区基站发送资源释放消息,触发所述第一小区基站释放与所述飞行器相关的资源。 After the [0117] release unit, for a successful handover to the second cell in the aircraft sends resource release message to the first base station cell, triggering the first cell associated with the base station releases the resource of the aircraft.

[0118] 本发明实施例提供的飞行器包括: [0118] an aircraft according to an embodiment of the present invention comprises:

[0119] 测量单元,用于在第一小区的信号质量低于预设门限时,测量获得第二小区的测量报告并上报至第一小区基站,其中第一小区基站是第一小区所属的基站,第一小区是所述飞行器的当前服务小区,第二小区是第一小区的邻小区; [0119] measurement unit, a signal quality for a first cell is lower than a preset threshold, obtain a measurement report reported by the second cell to the first cell and a base station, wherein the base is a base station a first cell of a first cell belongs the first cell of the aircraft is the current serving cell, a second cell neighboring a first cell is the cell;

[0120] 接收单元,用于接收所述第一小区基站在接收到所述测量报告后发送的切换命令; [0120] a receiving unit, for receiving a handover command from the base station of the first cell after receiving the measurement report;

[0121] 切换单元,用于根据所述切换命令,利用预先获得的第二小区的配置信息切换至所述第二小区。 [0121] a switching unit, according to the handover command, the configuration information of the second cell using a pre-acquired handover to the second cell.

[0122] 优选地,上述飞行器还包括: [0122] Preferably, the vehicle further comprising:

[0123] 接入单元,用于当所述飞行器在切换过程中发生无线链路失败时,利用预先获得的第二小区的配置信息,直接向第二小区发起重建请求,重新接入所述第二小区。 [0123] access unit, configured to, when the radio link failure occurred during handover of the aircraft, using the configuration information of the second cell is obtained in advance, initiating reestablishment request directly to the second cell, the first re-access two cells.

[0124] 最后,本发明实施例还提供了一种地空LTE系统,包括上文中所述的第一小区基站、第二小区基站及飞行器。 [0124] Finally, embodiments of the present invention further provides an LTE-to-air system, described hereinabove comprising a first base station cell, the second cell base station and the aircraft.

[0125] 综上,本发明实施例可以简化地空LTE系统中的切换流程,减小切换过程中RLF发生的概率,提高切换成功率。 The [0125] summary, embodiments of the present invention can be simplified air handover procedure in an LTE system, reducing the probability of the handover process RLF occurs, handover success rate increases.

[0126] 此说明书中所描述的许多功能部件都被称为单元,以便更加特别地强调其实现方式的独立性。 [0126] Many features described in this specification are referred to as units, in order to more particularly emphasize their implementation independence of.

[0127] 本发明实施例中,单元可以用软件实现,以便由各种类型的处理器执行。 Embodiment [0127] embodiment of the present invention, the unit may be implemented in software for execution by various types of processors. 举例来说,一个标识的可执行代码单元可以包括计算机指令的一个或多个物理或者逻辑块,举例来说,其可以被构建为对象、过程或函数。 For example, one identified unit of executable code may include one or more physical or logical blocks of computer instructions, for example, which may be constructed as an object, procedure, or function. 尽管如此,所标识单元的可执行代码无需物理地位于一起,而是可以包括存储在不同物理上的不同的指令,当这些指令逻辑上结合在一起时,其构成单元并且实现该单元的规定目的。 Nevertheless, the identified unit of executable code need not be physically located together, but may comprise disparate instructions stored in different physical, these instructions when joined logically together, which constitute a unit and achieve the stated object unit .

[0128] 实际上,可执行代码单元可以是单条指令或者是许多条指令,并且甚至可以分布在多个不同的代码段上,分布在不同程序当中,以及跨越多个存储器设备分布。 [0128] In fact, the units of executable code may be a single instruction or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices distributed. 同样地,操作数据可以在单元内被识别,并且可以依照任何适当的形式实现并且被组织在任何适当类型的数据结构内。 Similarly, operational data may be identified within the cell, and may be implemented in any suitable form and organized within any suitable type of data structure. 所述操作数据可以作为单个数据集被收集,或者可以分布在不同位置上(包括在不同存储设备上),并且至少部分地可以仅作为电子信号存在于系统或网络上。 The operational data may be collected as a single data set, or may be distributed over different locations (including over different storage devices), and may be at least partially, merely as electronic signals on a system or network.

[0129] 在单元可以利用软件实现时,考虑到现有硬件工艺的水平,所以可以以软件实现的单元,在不考虑成本的情况下,本领域技术人员都可以搭建对应的硬件电路来实现对应的功能,所述硬件电路包括常规的超大规模集成(VLSI)电路或者门阵列以及诸如逻辑芯片、晶体管之类的现有半导体或者是其它分立的元件。 When [0129] the unit may be implemented by software, hardware, taking into account the level of existing technology, the unit may be implemented in software, without considering the cost of skilled in the art can be built corresponding to the corresponding hardware circuits implemented It features, the hardware circuit comprises a conventional very large scale integration (VLSI) circuits or gate arrays, and such as logic chips, the conventional semiconductor transistor or the like, or other discrete components. 单元还可以用可编程硬件设备,诸如现场可编程门阵列、可编程阵列逻辑、可编程逻辑设备等实现。 Unit can also be used in programmable hardware devices, field programmable gate arrays, programmable array logic, programmable logic devices or the like as implemented.

[0130] 以上所述仅是本发明的实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。 [0130] The above are only embodiments of the present invention, it should be noted that those of ordinary skill in the art, in the present invention without departing from the principles of the premise, further improvements and modifications may be made, these improvements and modifications also it is considered the scope of the present invention.

Claims (16)

1.一种地空LTE系统中飞机器的切换方法,所述地空LTE系统包括有多个基站和飞行器,其特征在于,所述飞行器的飞行路径被多个基站的小区所覆盖,且预先将覆盖所述飞行路径的多个小区的配置信息下发给所述飞行器; 所述切换方法包括: 第一小区基站接收飞行器上报的第二小区的测量报告,其中,第一小区基站是第一小区所属的基站,所述第一小区是所述飞行器的当前服务小区,所述第二小区是第一小区的邻小区,所述测量报告是所述飞行器在第一小区的信号质量低于预设门限时测量获得的; 所述第一小区基站接收到所述测量报告后,向所述飞行器发送切换命令,控制所述飞行器利用预先获得的第二小区的配置信息切换至所述第二小区。 1. A method of switching air to the aircraft's LTE system, the LTE-to-air system includes a plurality of base stations and aircraft, wherein the aircraft flight path is covered with a plurality of base stations in a cell, and pre the configuration information of the plurality of cells covering the flight path of the aircraft at issue; the handover method comprising: a first cell of the second cell base station receives the measurement report reported by the aircraft, wherein the first base station is a first cell cell base station belongs, said first cell is a cell currently serving the aircraft, said second cell is a cell of a first neighbor cell, the measurement report of the aircraft is below a predetermined signal quality in the first cell set threshold obtained by the measurement; after receiving the measurement report, send a handover command to said first cell base station the aircraft, the aircraft control configuration information of the second cell using the previously obtained switched to the second cell .
2.如权利要求1所述的方法,其特征在于,所述第一小区基站在发送所述切换命令之后,进一步向第二小区基站发送数据包顺序编号状态SN Status Transfer信息,以及向第二小区基站转发所述飞行器的下行数据包。 2. The method according to claim 1, wherein said first cell base station after transmitting the handover command further SN Status Transfer message to the second cell base station transmits packet sequence number state, and the second cell base station forwards the downlink data packet of the aircraft.
3.如权利要求1所述的方法,其特征在于, 在所述飞行器成功切换至所述第二小区之后,所述方法还包括: 所述第一小区基站接收第二小区基站发送的资源释放消息,释放与所述飞行器相关的资源。 After 3. The method according to claim 1, characterized in that the successful handover to the second cell in the aircraft, said method further comprising: a first cell of the second base station receives the cell base station transmits the resource release of message, to release the resources associated with the aircraft.
4.如权利要求1所述的方法,其特征在于, 所述飞行路径的多个小区的配置信息包括:所述多个小区的小区ID、各个小区的随机接入信道资源分配信息、测量配置参数及随机接入前导码。 4. The method according to claim 1, wherein the configuration information of the flight path of the plurality of cells comprises: a plurality of cell ID of the cell, a random access channel resource allocation information of each cell, measurement configuration parameter and a random access preamble.
5.一种地空LTE系统中飞机器的切换方法,所述地空LTE系统包括有多个基站和飞行器,其特征在于,所述飞行器的飞行路径被多个基站的小区所覆盖,且预先将覆盖所述飞行路径的多个小区的配置信息下发给所述飞行器; 所述切换方法包括: 第二小区基站接收第一小区基站发送的数据包顺序编号状态SN Status Transfer信息,所述SN Status Transfer信息是第一小区基站在向飞行器发送切换命令之后向第二小区基站发送的,所述切换命令是第一小区基站接收到飞行器在第一小区的信号质量低于预设门限时上报的第二小区的测量报告后发送的,其中第一小区是飞行器的当前服务小区,第二小区是第一小区的邻小区; 第二小区基站接收第一小区基站转发的所述飞行器的下行数据包; 第二小区基站接收所述飞行器根据预先获得的第二小区的配置信息发起的接入请求,将 A method of switching air to the aircraft's LTE system, the LTE-to-air system includes a plurality of base stations and aircraft, wherein the aircraft flight path is covered with a plurality of base stations in a cell, and pre will send the configuration information of the plurality of cells covering the flight path of the aircraft; the handover method comprising: receiving a second cell base station packet sequence number of the states of the first cell base station transmitted information SN status Transfer the SN Status Transfer message sent by the first cell to the second cell base station after sending the handover command to the aircraft, a first cell is the handover command to the aircraft base station receives the signal quality of the first cell is lower than a preset threshold reported sending a second cell after the measurement report, wherein the first cell is the cell currently serving the aircraft, a second cell neighboring a first cell is the cell; and a second cell base station receives the cell base station the aircraft forward of a first downlink data packet ; a second cell base station receives the access request according to an aircraft configuration information of the second cell is obtained in advance initiated, the 所述飞行器切换至所述第二小区。 The aircraft is switched to the second cell.
6.如权利要求5所述的方法,其特征在于, 在所述飞行器成功切换至所述第二小区之后,所述方法还包括: 所述第二小区基站向第一小区基站发送资源释放消息,触发所述第一小区基站释放与所述飞行器相关的资源。 After 6. The method according to claim 5, characterized in that the successful handover to the second cell in the aircraft, said method further comprising: the second message to the first base station releases the cell-cell base station transmits resource triggering the first cell associated with the base station releases the resource of the aircraft.
7.一种地空LTE系统中飞机器的切换方法,所述地空LTE系统包括有多个基站和飞行器,其特征在于,所述飞行器的飞行路径被多个基站的小区所覆盖,且预先将覆盖所述飞行路径的多个小区的配置信息下发给所述飞行器; 所述切换方法包括:所述飞行器在第一小区的信号质量低于预设门限时,测量获得第二小区的测量报告并上报至第一小区基站,其中第一小区基站是第一小区所属的基站,第一小区是所述飞行器的当前服务小区,第二小区是第一小区的邻小区; 所述飞行器接收所述第一小区基站在接收到所述测量报告后发送的切换命令; 所述飞行器根据所述切换命令,利用预先获得的第二小区的配置信息切换至所述第二小区。 7. A method of switching air to the aircraft's LTE system, the LTE-to-air system includes a plurality of base stations and aircraft, wherein the aircraft flight path is covered with a plurality of base stations in a cell, and pre to send configuration information of the aircraft at a plurality of cells covering the flight path; the handover method comprising: a first signal quality of the aircraft in a cell is lower than a preset threshold, obtain a measurement of a second cell report and reported to the base station a first cell, wherein the first station is a base station of the first cell of the cell belongs, a first cell is the currently serving cell of the aircraft, a second cell neighboring a first cell is the cell; receiving the aircraft said first cell base station receiving the handover command transmitted after the measurement report; the aircraft according to the handover command, the configuration information of the second cell using a pre-acquired handover to the second cell.
8.如权利要求7所述的方法,其特征在于, 若所述飞行器在切换过程中发生无线链路失败,所述方法还包括: 所述飞行器利用预先获得的第二小区的配置信息,直接向第二小区发起重建请求,重新接入所述第二小区。 8. The method according to claim 7, wherein, when the aircraft radio link failure occurred during handover, the method further comprising: the aircraft using the configuration information of the second cell is obtained in advance, directly initiating reestablishment request to the second cell, the second cell re-access.
9.一种地空LTE系统中的第一小区基站,所述地空LTE系统包括有多个基站和飞行器,其特征在于,所述飞行器的飞行路径被多个基站的小区所覆盖,且所述飞行器预先获得覆盖所述飞行路径的多个小区的配置信息; 所述第一小区基站包括: 接收单元,用于接收飞行器上报的第二小区的测量报告,其中,第一小区基站是第一小区所属的基站,所述第一小区是所述飞行器的当前服务小区,所述第二小区是第一小区的邻小区,所述测量报告是所述飞行器在第一小区的信号质量低于预设门限时测量获得的; 切换控制单元,用于在所述接收单元接收到所述测量报告后,向所述飞行器发送切换命令,控制所述飞行器利用预先获得的第二小区的配置信息切换至所述第二小区。 A first base station A to the empty cell in the LTE system, the LTE-to-air system includes a plurality of base stations and aircraft, wherein the aircraft flight path is covered with a plurality of base stations in a cell, and the said aircraft configuration information obtained in advance a plurality of cells covering the flight path; a first cell of said base station comprising: a receiving unit configured to receive a measurement report reported by the aircraft of the second cell, wherein the first base station is a first cell cell base station belongs, said first cell is a cell currently serving the aircraft, said second cell is a cell of a first neighbor cell, the measurement report of the aircraft is below a predetermined signal quality in the first cell obtained by the measurement set threshold; switching control unit, configured to, after the receiving unit receives the measurement report, send a handover command to the aircraft, the aircraft control using the configuration information of the second cell is switched to the previously obtained the second cell.
10.如权利要求9所述的第一小区基站,其特征在于,还包括: 发送单元,用于在所述切换控制单元发送所述切换命令之后,向第二小区基站发送数据包顺序编号状态SN Status Transfer信息,以及向第二小区基站转发所述飞行器的下行数据包。 10. The base station according to a first cell as claimed in claim 9, characterized in that, further comprising: a transmitting unit configured to control the switching unit after sending the handover command to the second cell base station transmits packet sequence number state SN Status Transfer message, and forwarding the downlink data packet to the second cell base station the aircraft.
11.如权利要求9所述的第一小区基站,其特征在于, 释放单元,用于接收第二小区基站在所述飞行器成功切换至所述第二小区之后发送的资源释放消息,释放与所述飞行器相关的资源。 11. The base station according to a first cell as claimed in claim 9, characterized in that the releasing unit, configured to receive a second cell base station to a successful handover resource release message after sending the second cell in the aircraft, and the release said aircraft related resources.
12.—种地空LTE系统中的第二小区基站,所述地空LTE系统包括有多个基站和飞行器,其特征在于,所述飞行器的飞行路径被多个基站的小区所覆盖,且所述飞行器预先获得覆盖所述飞行路径的多个小区的配置信息; 所述第二小区基站包括: 第一接收单元,用于接收第一小区基站发送的数据包顺序编号状态SN StatusTransfer信息,所述SN Status Transfer信息是第一小区基站在向飞行器发送切换命令之后向第二小区基站发送的,所述切换命令是第一小区基站接收到飞行器在第一小区的信号质量低于预设门限时上报的第二小区的测量报告后发送的,其中第一小区是飞行器的当前服务小区,第二小区是第一小区的邻小区; 第二接收单元,用于接收第一小区基站转发的所述飞行器的下行数据包; 接入单元,用于接收所述飞行器根据预先获得的第二小区的配置信息发起的 The second base station 12.- farming empty cell in the LTE system, the LTE-to-air system includes a plurality of base stations and aircraft, wherein the aircraft flight path is covered with a plurality of base stations in a cell, and the said aircraft configuration information obtained in advance a plurality of cells covering the flight path; the second cell base station comprises: a first receiving means for receiving a first packet sequence number transmitted by cell base station status information SN StatusTransfer, the SN Status Transfer message is sent by the first cell to the second cell base station after sending the handover command to the aircraft, a first cell is the handover command to the aircraft base station receives the signal quality of the first cell is lower than a preset threshold reporting after the second measurement report sent by the cell, wherein the current serving cell is the first cell of the aircraft, a second cell neighboring a first cell is a cell; a second receiving unit for receiving said first cell base station forwarding an aircraft the downlink data packet; access unit for receiving the aircraft according to the configuration information of the second cell is obtained in advance of the initiation 入请求,将所述飞行器切换至所述第二小区。 In request, the vehicle is switched to the second cell.
13.如权利要求12所述的第二小区基站,其特征在于,还包括:释放单元,用于在所述飞行器成功切换至所述第二小区之后,向第一小区基站发送资源释放消息,触发所述第一小区基站释放与所述飞行器相关的资源。 A second base station 13. The cell according to claim 12, characterized in that, further comprising: after the release means for the successful handover to the second cell in the aircraft, the base station sends a resource release message to the first cell, triggering the first cell base station releases the resources associated with the aircraft.
14.一种地空LTE系统中的飞行器,所述地空LTE系统还包括有多个基站,其特征在于,所述飞行器的飞行路径被多个基站的小区所覆盖,且所述飞行器预先获得覆盖所述飞行路径的多个小区的配置信息; 所述飞行器包括: 测量单元,用于在第一小区的信号质量低于预设门限时,测量获得第二小区的测量报告并上报至第一小区基站,其中第一小区基站是第一小区所属的基站,第一小区是所述飞行器的当前服务小区,第二小区是第一小区的邻小区; 接收单元,用于接收所述第一小区基站在接收到所述测量报告后发送的切换命令; 切换单元,用于根据所述切换命令,利用预先获得的第二小区的配置信息切换至所述第二小区。 14. A ground-air aircraft in the LTE system, the LTE-to-air system further comprises a plurality of base stations, characterized in that the flight path of the aircraft is covered with a plurality of base stations of a cell, obtained in advance of the aircraft and configuration information of the plurality of cells covering the flight path; said aircraft comprising: a measuring unit, a signal quality for a first cell is lower than a preset threshold, obtain a measurement report and a second report to the first cell cell base station, wherein the first station is a base station of the first cell of the cell belongs, a first cell is the currently serving cell of the aircraft, a second cell neighboring a first cell is the cell; receiving means for receiving said first cell handover command from the base station after receiving the measurement report; a switching unit, according to the handover command, the configuration information of the second cell using a pre-acquired handover to the second cell.
15.如权利要求14所述的飞行器,其特征在于,还包括: 接入单元,用于当所述飞行器在切换过程中发生无线链路失败时,利用预先获得的第二小区的配置信息,直接向第二小区发起重建请求,重新接入所述第二小区。 15. The aircraft according to claim 14, characterized in that, further comprising: an access unit configured to, when the radio link failure occurred during handover of the aircraft, using the configuration information of the second cell is obtained in advance, initiating reestablishment request directly to the second cell, the second cell re-access.
16.一种地空LTE系统,其特征在于,包括: 如权利要求9至11任一项所述的第一小区基站; 如权利要求12至13任一项所述的第二小区基站;以及, 如权利要求14至15任一项所述的飞行器。 16. A blank to an LTE system, characterized by comprising: a base station of the first cell as claimed in any one of claims 9 to 11; the second cell base station according to any one of claims 12 to 13; and as an aircraft according to any of claims 14-15.
CN201310084122.9A 2013-03-15 2013-03-15 Aircraft switching method in ground-air long term evolution system, and base station and aircraft CN104053197A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106332233A (en) * 2015-06-30 2017-01-11 华为技术有限公司 Terminal, base station, cell access method and data transmission method
CN106604385A (en) * 2015-10-15 2017-04-26 霍尼韦尔国际公司 Long term evolution (lte) air to ground communication enhancements associated with uplink synchronization
CN107306428A (en) * 2016-04-19 2017-10-31 航迅信息技术有限公司 A kind of air communications method, airborne vehicle and base station
WO2019041111A1 (en) * 2017-08-28 2019-03-07 北京小米移动软件有限公司 Method and device for managing measurement parameters of cell handover
WO2019056982A1 (en) * 2017-09-21 2019-03-28 索尼公司 Apparatus and method in wireless communication system and computer readable storage medium
WO2019084871A1 (en) * 2017-11-02 2019-05-09 北京小米移动软件有限公司 Transmitting method and device for flight information of unmanned aerial vehicle, base station and core network device
WO2019213908A1 (en) * 2018-05-10 2019-11-14 北京小米移动软件有限公司 Methods for acquiring and sending route information of unmanned aerial vehicle

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6917807B1 (en) * 1999-03-10 2005-07-12 Nokia Corporation Cell selection method
CN101867989A (en) * 2009-04-16 2010-10-20 中国移动通信集团公司 Cell reselection method, base station, vehicle-mounted equipment and system
CN102412886A (en) * 2011-09-20 2012-04-11 清华大学 General aviation communication system and method
CN102740386A (en) * 2012-06-20 2012-10-17 中兴通讯股份有限公司 Cell switching method and base station
CN102857964A (en) * 2011-06-28 2013-01-02 中兴通讯股份有限公司 Terminal switching method and device
CN102883386A (en) * 2012-09-04 2013-01-16 大唐移动通信设备有限公司 Cell switching method and device in LTE network
CN102892128A (en) * 2011-07-20 2013-01-23 北京为邦远航无线技术有限公司 Multi-cell ground-to-air wideband communication system and method
CN102892163A (en) * 2011-07-20 2013-01-23 北京为邦远航无线技术有限公司 Ground-air wideband communication switching method and system under high-speed moving condition

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6917807B1 (en) * 1999-03-10 2005-07-12 Nokia Corporation Cell selection method
CN101867989A (en) * 2009-04-16 2010-10-20 中国移动通信集团公司 Cell reselection method, base station, vehicle-mounted equipment and system
CN102857964A (en) * 2011-06-28 2013-01-02 中兴通讯股份有限公司 Terminal switching method and device
CN102892128A (en) * 2011-07-20 2013-01-23 北京为邦远航无线技术有限公司 Multi-cell ground-to-air wideband communication system and method
CN102892163A (en) * 2011-07-20 2013-01-23 北京为邦远航无线技术有限公司 Ground-air wideband communication switching method and system under high-speed moving condition
CN102412886A (en) * 2011-09-20 2012-04-11 清华大学 General aviation communication system and method
CN102740386A (en) * 2012-06-20 2012-10-17 中兴通讯股份有限公司 Cell switching method and base station
CN102883386A (en) * 2012-09-04 2013-01-16 大唐移动通信设备有限公司 Cell switching method and device in LTE network

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106332233A (en) * 2015-06-30 2017-01-11 华为技术有限公司 Terminal, base station, cell access method and data transmission method
CN106332233B (en) * 2015-06-30 2019-10-22 华为技术有限公司 A kind of terminal, base station, cell accessing method and data transmission method
CN106604385A (en) * 2015-10-15 2017-04-26 霍尼韦尔国际公司 Long term evolution (lte) air to ground communication enhancements associated with uplink synchronization
CN107306428A (en) * 2016-04-19 2017-10-31 航迅信息技术有限公司 A kind of air communications method, airborne vehicle and base station
WO2019041111A1 (en) * 2017-08-28 2019-03-07 北京小米移动软件有限公司 Method and device for managing measurement parameters of cell handover
WO2019056982A1 (en) * 2017-09-21 2019-03-28 索尼公司 Apparatus and method in wireless communication system and computer readable storage medium
WO2019084871A1 (en) * 2017-11-02 2019-05-09 北京小米移动软件有限公司 Transmitting method and device for flight information of unmanned aerial vehicle, base station and core network device
WO2019213908A1 (en) * 2018-05-10 2019-11-14 北京小米移动软件有限公司 Methods for acquiring and sending route information of unmanned aerial vehicle

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