CN102695219B - 3G (The third Generation Telecommunication) and Ad hoc heterogeneous network switchover method - Google Patents

3G (The third Generation Telecommunication) and Ad hoc heterogeneous network switchover method Download PDF

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CN102695219B
CN102695219B CN 201210196515 CN201210196515A CN102695219B CN 102695219 B CN102695219 B CN 102695219B CN 201210196515 CN201210196515 CN 201210196515 CN 201210196515 A CN201210196515 A CN 201210196515A CN 102695219 B CN102695219 B CN 102695219B
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network
mobile terminal
ad hoc
3g
rscp
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CN102695219A (en
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李旭杰
欧阳星辰
李建霓
徐淑芳
李黎
郭成明
崔潇菡
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河海大学
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Abstract

本发明公开了一种3G与Ad hoc异构网络切换方法,一种3G与Ad hoc异构网络的切换方法,主呼移动终端和被呼移动终端通过3G网络或者Ad hoc网络进行通讯;包括以下步骤:(1)对3G网络的激活集和候选集中基站PCCPCH的RSCP进行测量,同时对Ad hoc网络信号状态进行测量;(2)3G网络到3G网络的切换;(3)3G网络到Ad hoc网络的切换;(4)Ad hoc网络到3G网络的切换。 The present invention discloses a method and 3G Ad hoc heterogeneous network handover, 3G handover method in a heterogeneous network with Ad hoc, Calling the mobile terminal and the called mobile communication terminal through a 3G network or Ad hoc network; comprising step: (1) active set and the candidate 3G networks focused RSCP base PCCPCH is measured, while the Ad hoc network signal state is measured; switches (2) 3G network to the 3G network; (. 3) 3G network to the Ad hoc switching network; switch (4) Ad hoc network to the 3G network. 本发明的3G与Ad hoc异构网络的切换方法能够提高异构网络的性能,减少切换延时,满足实时业务的端到端的时延限制条件下的可靠性要求。 3G and reliability requirements under Ad hoc heterogeneous network handover method of the present invention can improve the performance of heterogeneous network, reduce the handover delay, end-to meet real-time traffic delay constraints. 性能优越,且易于实现。 Superior performance, and easy to implement.

Description

—种3G与Ad hoc异构网络的切换方法 - 3G handover method kinds with Ad hoc heterogeneous network

技术领域 FIELD

[0001] 本发明涉及异构网络领域,具体涉及一种3G与Ad hoc异构网络的切换方法。 [0001] The present invention relates to heterogeneous networks, and in particular relates to 3G handover method in a heterogeneous network with Ad hoc.

背景技术 Background technique

[0002] 切换是无线通信系统中的一种重要的资源管理功能,也是蜂窝系统所独有的功能和关键特性。 [0002] switching is an important resource management function of the wireless communication system, a cellular system is unique and the function key features. 切换可以认为是蜂窝通信中最复杂和最重要的过程之一。 Switching can be considered one of the cellular communication in the most complex and important process.

[0003] 切换的原因一般如下: [0003] The cause of the handover is generally as follows:

[0004] 1.当移动终端从一个小区进入另一个小区时,为避免掉话或数据链路的断开,可能会触发切换过程。 [0004] 1. When the mobile terminal from one cell into another cell, in order to avoid dropped calls or data link is disconnected, can trigger a handover procedure.

[0005] 2.在非CDMA系统中,移动终端使用的信道可能会与相邻小区的某一移动终端使用的信道相干扰。 [0005] 2. In a non-CDMA system, the channel used by the mobile terminal may interfere with the mobile terminal a channel used in the nearby cell. 在这种情况下,将该移动终端的通信信道切换到同一小区的不同信道或相邻小区的不同信道,则会有效地降低干扰。 In this case, the communication channel of the mobile terminal to switch to a different channel of the same cell or adjacent cells of different channels, will effectively reduce the interference.

[0006] 3.同样在非CDMA系统中,当移动终端的行为动作发生变化,例如:当某一高速运动并与一个大的伞状类型小区相链接的移动终端突然停下来,此时,通话通常会被转移到一个宏小区或微小区,可以让伞状类型小区处理其他的快速移动的用户,并且减小了干扰。 [0006] 3. Also in the non-CDMA system, when the behavior of the operation of the mobile terminal changes, for example: when a high velocity and with a large umbrella cell type mobile terminal linked to a sudden stop, this time, the call typically they are transferred to a macro cell or a micro cell, allowing the cell type umbrella handle other fast-moving users, and reduces interference. 反之亦然。 vice versa.

[0007] 4.在CDMA系统中,软切换可以被采用以减小对邻小区的干扰,可以通过多个基站的分集接收从而提高网络性能。 [0007] 4. In a CDMA system, soft handoff may be employed to reduce interference to neighboring cells, thereby improving network performance may be received by a plurality of base stations in diversity.

[0008] 切换主要分为两类:水平切换和垂直切换。 [0008] The handover can be divided into two categories: horizontal and vertical handover. 同类的无线网络的小区或者扇区之间的切换称为水平切换,不同类无线网络之间的切换称为垂直切换。 Handover between sectors of the same cell or radio network called horizontal handover, handover between different types of wireless networks known as vertical handoff. 对于传统的3G网络来说,只存在水平切换。 For conventional 3G networks, there are only horizontal handoff. 而对于3G与Ad hoc异构网络来说,不仅有水平切换,还存在3G网络与Ad hoc网络之间的垂直切换。 For the 3G networks the Ad hoc heterogeneous, not only switch level, there is a vertical interval between the 3G network and the Ad hoc network handover. 因此,对于异构融合网络来说,切换方法的好坏也直接决定了系统的性能。 Thus, for the integration of heterogeneous networks, the quality switching method directly determines the performance of the system.

[0009] 因此,需要一种3G与Ad hoc异构网络的切换方法以提高系统性能。 [0009] Accordingly, the need exists for a 3G handover method Ad hoc heterogeneous network to improve system performance.

发明内容 SUMMARY

[0010] 发明目的:本发明的目的是针对3G与Ad hoc异构网络的切换问题,提供一种3G与Ad hoc异构网络的切换方法以提高异构网络的系统性能。 [0010] Object of the invention: The present invention is directed to 3G handover problem and Ad hoc heterogeneous networks, there is provided a method of switching 3G Ad hoc heterogeneous network to the heterogeneous network system performance.

[0011] 技术方案:为实现上述发明目的,本发明3G与Ad hoc异构网络的切换方法可采用如下技术方案: [0011] Technical Solution: In order to achieve the above object, the Ad hoc 3G handover method in a heterogeneous network of the present invention may employ the following technical solutions:

[0012] 一种3G与Ad hoc异构网络的切换方法,主呼移动终端和被呼移动终端通过3G网络或者Ad hoc网络进行通讯, [0012] A 3G and Ad hoc heterogeneous network handover method, Calling terminal and the called mobile communication terminal through a 3G mobile network or Ad hoc network,

[0013] 包括以下参数: [0013] includes the following parameters:

[0014] 激活集:与主呼移动终端相连接的基站列表; [0014] Active Set: The calling base station and a mobile terminal connected to a listing;

[0015] 候选集:不在激活集中,但可能会切换到的基站列表; [0015] Candidate Set: is not in the active set, but the base station may switch to the list;

[0016] RSCP_DL_ADD:相邻基站PCCPCH 的RSCP 检测门限;[0017] RSCP_DL_C0MP:切换过程中使用的滞后量; [0016] RSCP_DL_ADD: the PCCPCH RSCP neighbor base station detection threshold; [0017] RSCP_DL_C0MP: the amount of switching hysteresis during use;

[0018] AAS:在同一个Ad hoc网络中的移动终端集; [0018] AAS: the same Ad hoc network in a mobile terminal set;

[0019] PCCPCH为主公共控制物理信道; [0019] PCCPCH main common control physical channel;

[0020] RSCP为接收信号码功率; [0020] RSCP Received Signal Code Power is;

[0021] 包括以下步骤: [0021] comprising the steps of:

[0022] (I)对3G网络的激活集和候选集中基站PCCPCH的RSCP进行测量,同时对Ad hoc网络信号状态进行测量; [0022] (I) of the active set and the candidate 3G network centralized base station of PCCPCH RSCP measurements, while the Ad hoc network measurement signal state;

[0023] (2) 3G网络到3G网络的切换: [0023] (2) 3G network handover to the 3G network:

[0024] 如果主呼移动终端和被呼移动终端用3G网络进行通信,候选集中测量的基站PCCPCH的RSCP的最大值超过了RSCP_DL_ADD,并且候选集中测量的基站PCCPCH的RSCP与激活集中基站的PCCPCH的RSCP的差值的最大值也超过了RSCP_DL_C0MP,同时主呼移动终端和被呼移动终端不在同一个AAS中,则候选集中的该基站进入到激活集,激活集中的当前基站进入到候选集,执行3G网络到3G网络的水平切换; [0024] The calling mobile terminal and if the called mobile terminal communicates with the 3G network, the maximum value of the PCCPCH RSCP of the base station candidate set measurement exceeds RSCP_DL_ADD, the candidate set and measure the PCCPCH RSCP of the base station and centralized base station activation PCCPCH RSCP maximum difference also exceeds the RSCP_DL_C0MP, while the main calling terminal and the called mobile station the mobile terminal is not the same in the AAS, then the candidate set into the active set, the base station into the active set to the candidate set of currently performing level 3G network handover to the 3G network;

[0025] (3)3G网络到Ad hoc网络的切换: [0025] (3) 3G network to the Ad hoc network handover:

[0026] 当主呼移动终端和被呼移动终端在同一个AAS中,主呼移动终端和被呼移动终端可以直接用Ad hoc网络进行通信;如果相互通信之前,主呼移动终端和被呼移动终端已经通过3G网络进行通信,且在通信的过程中,主呼移动终端定期扫描周围可以组建Ad hoc网络的移动终端并不断更新AAS,若被呼移动终端进入主呼移动终端相同的AAS中,则可以直接用Ad hoc网络完成通信,执行从3G网络到Ad hoc网络的垂直切换; [0026] When the main calling mobile terminal and the called mobile terminal in the same AAS, the main calling mobile terminal and the called mobile terminal can directly communicate with the Ad hoc network; mobile terminal if the previous communication with each other, the main calling mobile terminal and the called has been performed through the 3G network communication, and, in the course of communication, calling the mobile terminal periodically scans around the mobile terminal can set Ad hoc network and updated AAS, if the called mobile terminal enters the same AAS main mobile calling terminal, then application to communicate directly with the Ad hoc network, performing a handover from the 3G network to the vertical Ad hoc network;

[0027] 如果激活集和候选集中测量的基站PCCPCH的RSCP都小于RSCP_DL_ADD,并且被呼移动终端跟主呼移动终端不在同一个AAS中,此时主呼叫终端必须寻找到一个可达到通信要求的中继终端来接入到3G网络中,其中,中继终端与基站之间的链接是通过3G网络,而主呼移动终端与中继终端之间的链接则需要通过Ad hoc网络来完成,因此,对于主呼移动终端来说也需要一次3G网络到Ad hoc网络的垂直切换; [0027] If the base station of PCCPCH RSCP measurements active set and the candidate set are less than RSCP_DL_ADD, and the called mobile terminal with the main calling mobile terminal in the AAS is not the same when the primary calling terminal must find a required communication can be achieved in following the terminal to access the 3G network, wherein the link between the relay terminal and the base station via the 3G network and the link between the calling mobile terminal and the main relay terminal needs to be done by the Ad hoc network, therefore, calling the mobile terminal for the need for a 3G network to the vertical handover Ad hoc network;

[0028] (4) Ad hoc网络到3G网络的切换: [0028] (4) Ad hoc network handover to the 3G network:

[0029] 如果主呼移动终端和被呼移动终端一开始用Ad hoc网络进行通信,但在通信的过程中,因为终端的移动而使得主呼移动终端和被呼移动终端不在同一个AAS中,此时如果活动集或候选集中测量的基站PCCPCH的RSCP最大值大于RSCP_DL_ADD,则执行Ad hoc网络到3G网络的垂直切换。 [0029] The calling mobile terminal, and if the call is a mobile terminal starts communication in Ad hoc networks, but in the course of communication, since the mobile terminal of the winner of the calling mobile terminal and the called mobile terminal is not the same in the AAS, At this time, the base station if the PCCPCH RSCP measurement of the active set or the candidate set is greater than the maximum RSCP_DL_ADD, vertical Ad hoc network is a 3G network to perform handover.

[0030] 有益效果:本发明的3G与Ad hoc异构网络的切换方法能够提高异构网络的性能,减少切换延时,满足实时业务的端到端的时延限制条件下的可靠性要求。 [0030] Advantageous Effects: 3G and reliability requirements under Ad hoc heterogeneous network handover method of the present invention can improve the performance of heterogeneous network, reduce the handover delay, end-to meet real-time traffic delay constraints. 性能优越,且易于实现。 Superior performance, and easy to implement.

附图说明 BRIEF DESCRIPTION

[0031] 图1是3G与Ad hoc异构网络的切换方法示例图; [0031] FIG. 1 is a 3G and Ad hoc heterogeneous network switching method of FIG example;

[0032] 图2是3G与Ad hoc异构网络的切换方法流程图; [0032] FIG 2 is a flowchart 3G handover method Ad hoc heterogeneous networks;

[0033] 图3是3G与Ad hoc异构网络的切换场景; [0033] FIG. 3 is a 3G and Ad hoc heterogeneous network handover scenario;

[0034] 图4是3G与Ad hoc异构网络和3G网络的切换导频信号的Ec/No比较; [0034] FIG. 4 is an Ec of 3G and 3G Ad hoc network and a heterogeneous network handover pilot signal / No comparison;

[0035] 图5是3G与Ad hoc异构网络和3G网络的终端发射功率的比较。 [0035] FIG. 5 is a 3G terminal and the transmission power comparing Ad hoc heterogeneous networks and 3G networks. 具体实施方式 Detailed ways

[0036] 下面结合附图和具体实施例,进一步阐明本发明,应理解这些实施例仅用于说明本发明而不用于限制本发明的范围,在阅读了本发明之后,本领域技术人员对本发明的各种等价形式的修改均落于本申请所附权利要求所限定的范围。 [0036] conjunction with the accompanying drawings and the following specific examples further illustrate the invention, it should be understood that these embodiments are illustrative only and the present invention is not intended to limit the scope of the present invention, after reading this disclosure, those skilled in the art of the present invention various modifications are equivalents fall within the present application as defined in the appended claims scope.

[0037] 参数的选择与判断准则直接影响了切换方法的性能,下面分析一下这些系统参数。 [0037] The selection criterion and parameters directly affect the performance of the switching method, the following analysis of these system parameters.

[0038] 1.系统的可用带宽 [0038] 1. System available bandwidth

[0039] 通信系统的带宽是指系统所能提供的最大数据传输速率,对于无线通信网络来说,可以用发射端到接收端所能提供的最大传输速率来表示。 Bandwidth [0039] communication system is the maximum data transfer rate of the system can provide, for a wireless communication network, the transmitting end can use a maximum transmission rate that can be provided to the receiving end. FIG. 通常,语音业务对带宽的需求不高,而实时和非实时数据业务所需的系统带宽较大。 In general, the demand for voice service bandwidth is not high, but necessary for real-time and non-real time data service system bandwidth is greater.

[0040] (1)3G网络的可用带宽 [0040] (1) 3G network available bandwidth

[0041] 对于3G网络来说,系统的可用带宽用基站到移动终端所能提供的最大的传输速率来表示。 [0041] For 3G networks, available bandwidth by the base station system to the mobile terminal a maximum transmission rate that can be provided by FIG. 可用带宽与系统的信道容量、系统分配的资源数目和分配方案有密切的关系,包括对语音业务和数据业务所能提供的最大带宽。 The available bandwidth and the channel capacity of the system, the number and allocation of resources allocated to the system are closely related, comprising a maximum bandwidth of voice and data services can be provided. 对于用户来说,所能提供给用户的最大带宽与系统中其他用户的数量、各个用户占用带宽情况等因素密切相关。 For users, can provide to the number of other users maximum bandwidth and system users are closely related to each user bandwidth and other factors. 对于具有硬容量的TDMA及FDMA系统,系统的可用带宽主要是由当前用户数目所决定。 For TDMA and FDMA systems with hard capacity, the available bandwidth of the system is mainly determined by the current number of users. 因此,对新呼叫及切换请求的判决可以通过比较系统的总容量、当前系统内用户数以及新接入呼叫所需的带宽资源而获得。 Thus, the judgment of the handover request and the new call by comparing the total capacity of the system, the current number of users in the system and new access bandwidth resources required for the call is obtained. 而对于软容量的CDMA系统,系统可用带宽不仅与当前系统内用户数目有关,还与用户之间的相互干扰密切相关。 For soft capacity of the CDMA system, the available bandwidth of the system and not only about the current number of users in the system, is also closely related to the mutual interference between users.

[0042] (2)Ad hoc网络的带宽 [0042] (2) Ad hoc network bandwidth

[0043] Ad hoc网络满足一定的QoS所面临的一个挑战是了解资源的使用情况,从而可以通过确定或统计的方式来预留带宽。 [0043] Ad hoc network to meet a challenge faced by certain QoS is to understand the use of resources, which can be determined by the reserved bandwidth or statistical way. 为了支持实时业务的QoS,不仅需要了解到目的终端的最小时延路径,而且需要获悉该路径的可用带宽。 QoS to support real-time business, not only learned the minimum delay path to the destination terminal, and the need to learn the available bandwidth of the path. 在TDMA网络中,带宽可以按照空闲时隙的数量进行衡量,而且带宽的保证对于实时业务最为关键。 In the TDMA network, the bandwidth can be measured by the number of free slots, and ensure that the most critical bandwidth for real-time business. 在Ad hoc网络中,无线信道被所有的节点所共享。 In the Ad hoc network, a wireless channel is shared by all the nodes. 由于邻居节点的传送会干扰相邻节点的信息传送,因此某个节点可利用带宽的数量不仅取决于节点产生的流量和通过节点转发的流量,还依赖于与节点共享信道的其它邻居节点所产生的业务量。 Due to interference from neighboring transmitting node transmits information to neighboring nodes will, therefore a number of nodes depends not only on the available bandwidth by the node forwards traffic and traffic generated by a node, also depends on the generated other neighbor nodes with node shared channel the volume of business.

[0044] (3)与带宽相关的性能参数 [0044] (3) associated with the bandwidth performance parameters

[0045] 通信系统的新用户呼叫阻塞率及中断率是系统性能的重要标志。 [0045] The new user call blocking rate communication system and interrupt rate is an important indicator of system performance. 在传统的3G网络中,可使用带宽的不足是新用户呼叫阻塞及中断的主要原因。 In the traditional 3G network, you can use the bandwidth shortage is the main reason for the new user call blocking and interruption. 而在Ad hoc网络中,随着移动终端数目增多、系统带宽资源较匮乏时,MAC层的竞争机制将导致新用户被阻止,业务发生中断及呼叫产生延迟等。 In the Ad hoc network, with the increase in the number of mobile terminals, when the system bandwidth resources are scarce, competition mechanism will lead to a new MAC layer a user is prevented, and occurrence of interrupt service call generation delay. 因为系统可用带宽充分反映了系统的负载情况,从而一定程度上决定了系统呼叫阻塞率以及中断率的大小,这也直接影响着系统切换算法的性能,对于系统性能的优化也至关重要。 Because the system fully reflects the available bandwidth load of the system, which determines the system call blocking rate and the size outage rate to some extent, which directly affects the performance of the system handover algorithm, it is also crucial to optimize system performance.

[0046] 2.用户所需的业务类型 [0046] 2. The service type desired by the user

[0047] 异构网络提供了多种业务类型,不同类型的业务所需要的QoS也不同,如语音、实时多媒体业务等对时延比较敏感,而非实时业务如邮件、文件下载等服务对时延不是很敏感。 [0047] Heterogeneous networks provide a variety of business types, different types of business require different QoS such as voice, real-time multimedia services such as more sensitive to delay, rather than real-time services such as mail, file downloads and other services when Yan is not very sensitive. 对Ad hoc网络来说,如果用IEEE802.11协议则可以实现高数据率传输,但不能保证实时业务的QoS ;而如果用基于CDMA的MAC协议,则可以保证一定的数据传输速率并较好地支持语音、实时多媒体等实时性较强的业务。 Ad hoc networks of, if it is possible to achieve high data rate transmission with IEEE802.11 protocol, but can not guarantee real-time service QoS; If using CDMA-based MAC protocols, can guarantee the data transmission rate and better It supports voice, real-time multimedia and other strong real-time business.

[0048] 3.用户的移动速度 [0048] 3. The moving speed of the user

[0049] 在移动通信系统中,用户的移动速度直接影响到通信链路的稳定性以及因为多普勒频移所带来的性能下降。 [0049] In a mobile communication system, the moving speed of the user directly affects the stability of the communication link as well as performance degradation caused by Doppler shift. 对于3G与Ad hoc异构网络来说,因为Ad hoc网络属于短距离无线通信技术,如果两个移动终端相距较近时,可以通过Ad hoc网络直接进行通信。 For the 3G networks the Ad hoc heterogeneous, Ad hoc network as a short-range wireless communication technology, the mobile terminal if the two are in close proximity, may communicate directly through the Ad hoc networks. 但如果移动终端因为移动速度太快而使得两个移动终端之间的距离变化也太快,很可能刚刚建立的Ad hoc网络几秒种之后就得从Ad hoc网络切换到3G网络,这势必造成3G与Ad hoc异构网络的垂直切换太过频繁,过多的信令负荷直接导致系统性能的下降。 However, if the mobile terminal since the mobile speed is too fast so that the change in the distance between the two mobile terminals too fast, then it is likely Ad hoc networks have established just a few seconds from the Ad hoc network handover to the 3G network, which will inevitably result in 3G and vertical handover Ad hoc heterogeneous network too frequent, too much signaling load is a direct result of the system performance degradation. 但也有一种情况,虽然两个移动终端的移动速度很快,但彼此之间的相对距离比较稳定,此时这两个移动终端仍然可以继续使用Ad hoc网络进行通信,如在行驶中的同一辆汽车或者火车内的两个移动终端。 However, there is a case where, although both the mobile terminal moving speed is fast, but the relative distance between each other is relatively stable, then the two mobile terminals can continue to communicate using Ad hoc networks, such as traveling in the same two mobile terminals in the car or train. 因此不能简单考虑移动终端的绝对速度,而应该考虑两个移动终端之间的相对速度。 It is not a simple consideration of the absolute speed of the mobile terminal, and should take into account the relative velocity between the two mobile terminals.

[0050] 4.用户的位置 [0050] 4. The location of the user

[0051] 在传统的移动通信中,不管用户在何处,都需要用户努力接入到3G网络中。 [0051] In a conventional mobile communication, regardless of where the user, the user will need access to the 3G network effort. 但当移动终端位于信号衰落严重区域,如地下室、隧道、电梯等,这时候该移动终端会经常发生断链情况。 But when the mobile terminal is located in severe signal fading areas, such as basements, tunnels, elevators, this time to the mobile terminal chain scission often it occurs. 在3G与Ad hoc异构网络中,用户可以通过寻找到一个中继终端从而接入到3G网络中。 In 3G and Ad hoc heterogeneous network, so users can access the 3G network through a relay terminal to find. 所以在这些信号衰落严重的区域,移动终端会经常被触发从而发生垂直切换。 So in these severe signal fading area, the mobile terminal will often be triggered so that the vertical handoff occurs.

[0052] 5.用户终端的发射功率 [0052] The transmit power of the user terminal

[0053] 移动终端在不同的网络中进行通信时会消耗不同的功率,并且即使在同一个网络中也因为发射终端和接收终端之间距离的不同导致消耗的功率也不同。 [0053] In the mobile terminal in a different network consumes power when communicating different, even within the same network and also because the distance between the transmitting and receiving terminals results in power consumption are also different. 在3G与Ad hoc异构网路中,移动终端从3G网络切换到Ad hoc网络时,也会考虑选择具有更多能量或者消耗更低发射功率的移动终端作为中继终端,从而保证能够持久的通信。 In the Ad hoc heterogeneous 3G network, the mobile terminal from the 3G network to the Ad hoc network, will consider selecting a more or consume less energy transmit power of the mobile terminal as the relay terminal can be sustained to ensure communication.

[0054] 6.用户的服务费用 [0054] 6. The users of the service fee

[0055] 用户通过传统的3G网络进行通信的时候需要根据通话时长或者数据业务的流量进行缴费。 [0055] The user communicates through a conventional 3G network needs to pay when the length of a call or in accordance with data traffic flow. 在3G与Ad hoc异构网络中,两个移动终端之间的语音通话和数据业务的传输是不需要费用的。 In 3G and Ad hoc heterogeneous network, transmitting data traffic and voice calls between two mobile terminals are not required cost. 所以,如果移动终端可以通过Ad hoc网络进行通信,则优先选择Ad hoc网络;只有当用Ad hoc网络不能满足两个移动终端通话的质量时,才会切换到传统的3G网络中。 Therefore, if the mobile terminal can communicate via Ad hoc networks, Ad hoc network is preferentially selected; only when using Ad hoc networks can not meet the two mobile terminals call quality, will switch to the conventional 3G network.

[0056] 基于上述理论基础,对本发明的3G与Ad hoc异构网络的切换方法进行设计。 [0056] Based on the above theory, the method of switching 3G Ad hoc heterogeneous network of the present invention is designed.

[0057] 请参阅图1和图2所示,本发明的3G与Ad hoc异构网络的切换方法,包括以下参数: [0057] Referring to FIG. And, 3G and Ad hoc heterogeneous network handover method 1 of the present invention shown in FIG. 2, comprises the following parameters:

[0058] 激活集:与主呼移动终端相连接的基站列表; [0058] Active Set: The calling base station and a mobile terminal connected to a listing;

[0059] 候选集:不在激活集中,但可能会切换到的基站列表; [0059] Candidate Set: is not in the active set, but the base station may switch to the list;

[0060] RSCP_DL_ADD:相邻基站PCCPCH的RSCP检测门限;相邻小区的PCCPCH的RSCP必须大于RSCP_DL_ADD才可能成为切换目标小区。 [0060] RSCP_DL_ADD: the PCCPCH RSCP neighbor base station detection threshold; adjacent cell must be greater than the PCCPCH RSCP RSCP_DL_ADD it may be the handover target cell.

[0061] RSCP_DL_C0MP:切换过程中使用的滞后量;避免由此引起的信号随机起伏产生不必要的切换,并且保证切换后的信道质量。 [0061] RSCP_DL_C0MP: the amount of switching hysteresis during use; the resulting signal to avoid unnecessary handover random fluctuation, and to ensure the quality of the channel after switching. 当相邻小区的PCCPCH的RSCP大于RSCP_DL_ADD之后,判断该候选小区的PCCPCH的RSCP与当前服务小区的PCCPCH的RSCP的差值是否大于RSCP_DL_COMP。 When the neighbor cell is greater than the PCCPCH RSCP RSCP_DL_ADD, the difference of the PCCPCH RSCP determines the candidate cell with the PCCPCH RSCP is greater than the current serving cell RSCP_DL_COMP. 大于则切换,并且将该候选小区作为切换的目标小区;小于则该候选小区不能保证切换后通信质量优于当前的通信质量,所以不能作为切换的目标小区。 Is greater than the handover, and the candidate cell as a target cell for handover; is smaller than the handover candidate cell can not guarantee the communication quality is better than the current communication quality, it can not serve as a target cell for handover. 其中,PCCPCH(Primary Common Control Physical Channel)为主公共控制物理信道。 Wherein, PCCPCH (Primary Common Control Physical Channel) based common control physical channel. RSCP (Received Signal Code Power)为接收信号码功率。 RSCP (Received Signal Code Power) is the received signal code power. 在DPCH、PRACH 或PUSCH 等物理信道上收到的某一个信号码功率。 In other DPCH, PRACH or PUSCH physical channel received signal code power of one.

[0062] AAS:在同一个Ad hoc网络中的移动终端集;在同一个Ad hoc网络中的移动终端相互之间可以直接使用单跳或者多跳来通信。 [0062] AAS: the mobile terminal sets the same Ad hoc network; mobile terminal in the same Ad hoc networks can be used directly to each other or a single-hop multi-hop communication.

[0063] 3G与Ad hoc异构网络的切换主要分为3种类型:3G网络到3G网络的水平切换、3G网络到Ad hoc网络的垂直切换和Ad hoc网络到3G网络的垂直切换。 [0063] Ad hoc 3G switch the heterogeneous network is divided into three types: horizontal 3G networks handover to the 3G network, a 3G network perpendicular to the vertical handover Ad hoc network Ad hoc network and handover to the 3G network.

[0064] 包括以下步骤: [0064] comprising the steps of:

[0065] (I) 3G网络到3G网络的水平切换: [0065] level (the I) 3G networks handover to the 3G network:

[0066] 候选集中测量的基站PCCPCH的RSCP的最大值超过了RSCP_DL_ADD,并且候选集中测量的基站PCCPCH的RSCP与激活集中基站的PCCPCH的RSCP的差值的最大值也超过了RSCP_DL_C0MP,同时主呼移动终端和被呼移动终端不在同一个AAS中,则候选集中的该基站进入到激活集,激活集中的当前基站进入到候选集,执行3G网络到3G网络的水平切换; [0066] The maximum value of the PCCPCH RSCP of the base station candidate set measurement exceeds RSCP_DL_ADD, and the maximum value of the difference of the PCCPCH RSCP measurement of the candidate set base station activation PCCPCH RSCP centralized base station has more than RSCP_DL_C0MP, while the main mobile calling mobile terminal and the called terminal is not in the same AAS, then the candidate set base station into the active set, the base station into the active set to the current candidate set, performs horizontal 3G networks handover to the 3G network;

[0067] (2) 3G网络到Ad hoc网络的垂直切换: [0067] (2) 3G network to the vertical handover Ad hoc Networks:

[0068] 当主呼移动终端和被呼移动终端在同一个AAS中,主呼移动终端和被呼移动终端可以直接用Ad hoc网络进行通信;如果相互通信之前,主呼移动终端和被呼移动终端已经通过3G网络进行通信,且在通信的过程中,主呼移动终端定期扫描周围可以组建Ad hoc网络的移动终端并不断更新AAS,若被呼移动终端进入与主呼移动终端相同的AAS中,则可以直接用Ad hoc网络完成通信,执行从3G网络到Ad hoc网络的垂直切换; [0068] When the main calling mobile terminal and the called mobile terminal in the same AAS, the main calling mobile terminal and the called mobile terminal can directly communicate with the Ad hoc network; mobile terminal if the previous communication with each other, the main calling mobile terminal and the called a communication has been performed through the 3G network, and, in the course of communication, the main movement of the mobile terminal calling terminal may periodically set around scanning Ad hoc network and updated AAS, If the called mobile terminal enters the main calling the mobile terminal in the same AAS, can directly communicate with the completed Ad hoc network, performing a handover from the 3G network to the vertical Ad hoc network;

[0069] 如果激活集和候选集中测量的基站PCCPCH的RSCP都小于RSCP_DL_ADD,并且被呼移动终端与主呼移动终端不在同一个AAS中,此时主呼叫终端必须寻找到一个可达到通信要求的中继终端来接入到3G网络中。 [0069] If the base station of PCCPCH RSCP measurements active set and the candidate set are less than RSCP_DL_ADD, the called and calling the mobile terminal and the mobile terminal is not the main AAS in the same case, the master must find a calling terminal communication requirements can be achieved in following the terminal to access the 3G network. 其中,中继终端与基站之间的链接是通过3G网络,而主呼移动终端与中继终端之间的链接则需要通过Ad hoc网络来完成,因此,对于主呼移动终端来说也需要一次3G网络到Ad hoc网络的垂直切换。 Wherein the link between the relay terminal and the base station via the 3G network and the link between the calling mobile terminal and the main relay terminal needs to be done by the Ad hoc network, thus, to the main calling mobile terminal is a need 3G networks to the vertical handover Ad hoc networks.

[0070] (3)Ad hoc网络到3G网络的垂直切换: [0070] (3) Ad hoc networks of vertical handover to the 3G network:

[0071] 如果主呼移动终端和被呼移动终端一开始用Ad hoc网络进行通信,但在通信的过程中,因为终端的移动而使得主呼移动终端和被呼移动终端不在同一个AAS中,此时如果活动集或候选集中测量的基站PCCPCH的RSCP最大值大于RSCP_DL_ADD,则执行Ad hoc网络到3G网络的垂直切换。 [0071] The calling mobile terminal, and if the call is a mobile terminal starts communication in Ad hoc networks, but in the course of communication, since the mobile terminal of the winner of the calling mobile terminal and the called mobile terminal is not the same in the AAS, At this time, the base station if the PCCPCH RSCP measurement of the active set or the candidate set is greater than the maximum RSCP_DL_ADD, vertical Ad hoc network is a 3G network to perform handover.

[0072] 在3G与Ad hoc异构网络中,3G网络的切换过程中的测量不是在任何时候都处于激活状态,而是仅当需要进行切换的时候才触发。 [0072] Ad hoc heterogeneous with the 3G network, a handover procedure in the 3G network is not measured at all times in the active state, but only when the need for handover is triggered only. 切换测量触发标准是由无线网络控制器(Radio Network Controller, RNC)指定的,一般基于信号质量或者要求的发射功率进行切换触发。 Switching measurement trigger criteria specified by a radio network controller (Radio Network Controller, RNC), a trigger switch is generally performed based on signal quality or required transmit power. 当触发了切换测量,移动终端首先测量相邻基站的信号功率。 When the trigger of the handover measurements, the mobile terminal first measures the signal power of neighboring base stations. 一旦RNC接收到上述的测量信息,它会命令移动终端解码出最好基站的基站识别码(Base Station IdentityCode,BSIC)。 Once the RNC receives the measurement information, it instructs the mobile terminal decodes the base station identification code of the best base station (Base Station IdentityCode, BSIC). 在检测3G网络信号同时需要测量Ad hoc网络的信号状态从而判断采取哪种网络进行通信,此时采用移动终端辅助切换的方式。 At the same time the state signal to be measured in the Ad hoc network so that the detection signal of the 3G network which network communication is determined to take, this time by way of the mobile terminal assisted handover. 移动终端每隔5ms测量一次Ad hoc网络信号并报告给基站,RNC 一旦收到这些测量报告,则决定是否执行切换过程。 Every time the mobile terminal measuring the 5ms Ad hoc network signals and reports to the base station, RNC upon these measurement reports received, deciding whether to perform a handover procedure. [0073] 因此,本发明的3G与Ad hoc异构网络的切换方法还包括T和RSCP_DL_DR0P,T为切换计时器门限,移动终端每隔时间T测量一次Ad hoc网络信号,其中T为5ms ;RSCP_DL_DROP为切换测量启动门限,当移动终端接收到当前基站的PCCPCH的RSCP低于RSCP_DL_DROP的时候,启动3G网络切换测量。 [0073] Thus, the Ad hoc 3G handover method in a heterogeneous network according to the present invention further comprises a T and RSCP_DL_DR0P, T is a timer switch threshold, the mobile terminal measuring the time T a signal every Ad hoc network, where T is 5ms; RSCP_DL_DROP start threshold and the handover measurements, when the mobile terminal receiving the current base station is less than the PCCPCH RSCP RSCP_DL_DROP, start the handover measurements 3G network.

[0074]还包括 RSS_ADH0C_ADD 和RSS_ADH0C_DR0P,其中RSS_ADH0C_ADD 为组建Ad hoc 网络的信号功率门限值,如果主呼移动终端从被呼移动终端接收到的最大信号功率大于RSS_ADH0C_ADD,则这两个移动终端建立Ad hoc网络直接进行通信;RSS_ADH0C_DR0P为断开Adhoc网络的信号功率门限值,如果主呼移动终端从被呼移动终端接收到的最大信号功率低于RSS_ADH0C_DR0P,则这两个终端断开他们之间的Ad hoc网络通信链路。 [0074] and further comprising RSS_ADH0C_ADD RSS_ADH0C_DR0P, wherein RSS_ADH0C_ADD signal power threshold value for the formation of Ad hoc network, if the mobile terminal is greater than RSS_ADH0C_ADD Calling from the maximum signal power is received by the call to the mobile terminal, the mobile terminal establishes two Ad hoc network communicate directly; RSS_ADH0C_DR0P Adhoc network OFF signal power threshold value, if the mobile terminal calling RSS_ADH0C_DR0P below the maximum signal power is received from the calling mobile terminal, the disconnection between two terminals to their Ad hoc network communication link.

[0075] 请参与图1所示,如果候选集中测量的最大的PCCPCH超过了RSCP_DL_ADD,并且比激活集中基站的RSCP_DL_ADD大的值也超过了RSCP_DL_C0MP,同时被呼移动终端不在AAS中,则候选集中的该基站进入到激活集,激活集中的当前基站进入到候选集,如图1中点4所示。 [0075] Please participate in FIG. 1, if the candidate set measurement exceeds the maximum RSCP_DL_ADD PCCPCH, and the ratio of active set base station is larger than the value RSCP_DL_ADD also RSCP_DL_C0MP, while the called mobile terminal is not in the AAS, then the candidate set the base station into the active set, the base station into the active set to the current candidate set, as shown in Fig midpoint. 若被呼移动终端在AAS中,主呼移动终端和被呼移动终端可以直接用Ad hoc网络进行通信。 If the called mobile terminal to AAS, Calling the mobile terminal and the called mobile terminal may communicate directly with Ad hoc networks. 如果相互通信之前,主呼移动终端和被呼移动终端已经通过3G网络进行通信,且在通信的过程中,主呼移动终端定期扫描周围可以组建Ad hoc网络的移动终端并不断更新AAS,若发现被呼移动终端进入到AAS中,则可以直接用Ad hoc网络完成通信,但需要完成从3G网络到Ad hoc网络的垂直切换,如图1中点8所示。 If the previous communication with each other, the main calling mobile terminal and a called mobile terminal has to communicate via 3G network, and, in the course of communication, Calling around periodically scans the mobile terminal may set up a mobile terminal Ad hoc network and updated the AAS, if found a called mobile terminal enters into the AAS, it is possible to directly communicate with the completed Ad hoc network, but complete vertical handover from the 3G network to the Ad hoc network as a midpoint in Fig. 而另外一种情况是,如果激活集和候选集中测量的基站PCCPCH的RSCP都小于RSCP_DL_ADD,并且被呼移动终端与主呼移动终端不在同一个AAS中,此时呼叫终端必须寻找到一个可达到通信要求的中继终端来接入到3G网络中,对于主呼终端来说也需要一次3G网络到Ad hoc网络的切换过程,同样如图1中点8所示。 While the other case, PCCPCH RSCP of the base station active set and the candidate set, if the measured less than RSCP_DL_ADD, the called and calling the mobile terminal and the mobile terminal is not in the main the same AAS, in which case the calling terminal must find a communication can be achieved required to access the relay terminal to the 3G network, to the main calling terminal is a 3G network also needs a handover procedure Ad hoc networks, the same center point as shown in Fig. 如果通信双方一开始用Ad hoc网络进行通信,但在通信的过程中,因为终端的移动而使得通信双方不在同一个AAS中,此时如果活动集或候选集中测量的基站PCCPCH的RSCP最大值大于RSCP_DL_ADD,则执行Ad hoc网络到3G网络的切换过程,如图1中点12处所示。 If the communication parties start a communication in Ad hoc networks, but in the course of communication, since the mobile communication terminal so that both are not the same in the AAS, PCCPCH RSCP of the base station at this time if the active set or the candidate set is greater than the maximum value of the measured RSCP_DL_ADD, a handover procedure is executed Ad hoc network to the 3G network, as shown at 121 midpoint. 显而易见,3G与Ad hoc异构的网络性能比传统的3G网络性能会有明显地提高。 Apparent, 3G and Ad hoc heterogeneous network performance will be significantly higher than the conventional 3G network performance.

[0076] 图2描述了3G与Ad hoc异构网络的切换算法的流程,反映了此种切换算法的有效性与灵活性。 [0076] FIG. 2 depicts a flow of the handover algorithm 3G Ad hoc networks of heterogeneous, reflecting the effectiveness and flexibility of such handover algorithm. 图中RSCPs表示当前服务小区PCCPCH的RSCP,RSCPn表示邻近小区PCCPCH的RSCP。 FIG RSCPs represents PCCPCH RSCP of the current serving cell, RSCPn indicates neighboring cells of PCCPCH RSCP.

[0077] 图3选用了OPNET仿真软件对3G与Ad hoc异构网络的切换性能进行了仿真分析,采用了OPNET软件中的UMTS和MANET模块,并对其中的仿真参数进行了相关配置。 [0077] FIG 3 selected OPNET 3G handover performance simulation software with Ad hoc heterogeneous network is simulated and analyzed using the software OPNET MANET and UMTS module, and wherein the simulation configuration parameters. 假设移动终端是双模的,具有3G网络和Ad hoc网络的移动终端所具有的全部功能。 It assumed that the mobile terminal is a dual mode, a mobile terminal and a 3G network Ad hoc network has full functionality. 该图描述了3G与Ad hoc异构网络切换的一个应用场景,线(a)表示移动终端的运动轨迹,圆形区域Dead spots是3G小区的信号盲区,在此区域接收到很微弱的基站信号。 3G which depicts a scenario with Ad hoc heterogeneous network handover, the line (a) denotes the motion trajectory of the mobile terminal, the signal is a circular area Dead spots blind 3G cell, in this area the base station receives a very weak signal .

[0078] 图4详细比较了3G与Ad hoc异构网络和传统3G网络的切换导频信号的Ec/N0。 [0078] The detailed comparison of FIG. 4 and the switching guide 3G Ec of Ad hoc networks and heterogeneous conventional 3G networks pilot signal / N0. 当移动终端移动到小区信号的盲区时(仿真图中40秒左右的位置),传统3G网络的信号功率会急剧下降以至于不能保证正常的通信。 When the mobile terminal moves to the cell blind signal (approximately 40-second position in FIG simulation), signal power of a conventional 3G network would drop dramatically so that normal communication can not be guaranteed. 但是对于3G与Ad hoc异构网络来说,信号一直维持在6dB左右。 But for 3G and Ad hoc heterogeneous network, the signal has been maintained at around 6dB. 这是由于处于信号盲区的移动终端可以寻找到中继终端从而接入到3G网络中。 This is because the mobile terminal is in a blind zone such that the relay terminal can find access to the 3G network.

[0079] 图5详细比较了3G与Ad hoc异构网络和传统3G网络的终端的发射功率。 [0079] Figure 5 a detailed comparison with the 3G terminal transmit power Ad hoc networks and heterogeneous conventional 3G network. 与传统的3G网络相比,3G与Ad hoc异构网络的终端的发射功率更低。 Compared with conventional 3G networks, a lower transmit power of the terminal and the 3G Ad hoc heterogeneous network. 因此可以看出3G与Adhoc异构网络能更有效地节约移动终端的能量。 3G energy can thus be seen Adhoc heterogeneous networks is more effective to save the mobile terminal.

[0080] 如上所述,本发明的3G与Ad hoc异构网络的切换方法,能够提高异构网络的性能,减少切换延时,满足实时业务的端到端的时延限制条件下的可靠性要求。 [0080] As described above, 3G and Ad hoc heterogeneous network handover method according to the present invention, the reliability can improve the performance of a heterogeneous network, reduce the handover delay, real-time services to meet end to end delay limits . 性能优越,且易于实现。 Superior performance, and easy to implement.

Claims (4)

1.一种3G与Ad hoc异构网络的切换方法,其特征在于,主呼移动终端和被呼移动终端通过3G网络或者Ad hoc网络进行通讯; 包括以下参数: 激活集:与主呼移动终端相连接的基站列表; 候选集:不在激活集中,但可能会切换到的基站列表; RSCP_DL_ADD:相邻基站PCCPCH的RSCP检测门限; RSCP_DL_COMP:切换过程中使用的滞后量; AAS:在同一个Ad hoc网络中的移动终端集; PCCPCH为主公共控制物理信道; RSCP为接收信号码功率; 包括以下步骤: (1)对3G网络的激活集和候选集中基站PCCPCH的RSCP进行测量,同时对Ad hoc网络信号状态进行测量; (2)3G网络到3G网络的切换: 如果主呼移动终端和被呼移动终端用3G网络进行通信,候选集中测量的基站PCCPCH的RSCP的最大值超过了RSCP_DL_ADD,并且候选集中测量的基站PCCPCH的RSCP与激活集中基站的PCCPCH的RSCP的差值的最大值也超过了RSCP_DL_COMP,同时主呼 An Ad hoc heterogeneous networks and 3G handover method, wherein the main calling mobile terminal and the called mobile communication terminal through a 3G network or Ad hoc network; includes the following parameters: Active Set: The calling mobile terminal and list of base stations are connected; candidate set: not in the active set, but may switch to the station list; RSCP_DL_ADD: neighboring base station of PCCPCH RSCP detection threshold; RSCP_DL_COMP: hysteresis handover process used; the AAS: the same Ad hoc the mobile terminal sets in the network; PCCPCH main common control physical channel; RSCP is the received signal code power; comprising the steps of: (1) active set and the candidate 3G networks focused RSCP base PCCPCH is measured, while the Ad hoc network the measurement signal state; switch (2) the 3G network to the 3G network: the calling mobile terminal and if the called mobile terminal communicates with the 3G network, the maximum value of the PCCPCH RSCP of the base station candidate set measurement exceeds RSCP_DL_ADD, and the candidate set maximum difference RSCP measurements and the base station activation PCCPCH RSCP of the PCCPCH centralized base station has more than RSCP_DL_COMP, while calling 动终端和被呼移动终端不在同一个AAS中,则候选集中的该基站进入到激活集,激活集中的当前基站进入到候选集,执行3G网络到3G网络的水平切换; (3)3G网络到Ad hoc网络的切换: 当主呼移动终端和被呼移动终端在同一个AAS中,主呼移动终端和被呼移动终端可以直接用Ad hoc网络进行通信;如果相互通信之前,主呼移动终端和被呼移动终端已经通过3G网络进行通信,且在通信的过程中,主呼移动终端定期扫描周围可以组建Ad hoc网络的移动终端并不断更新AAS,若被呼移动终端进入主呼移动终端相同的AAS中,则可以直接用Ad hoc网络完成通信,执行从3G网络到Ad hoc网络的垂直切换; 如果激活集和候选集中测量的基站PCCPCH的RSCP都小于RSCP_DL_ADD,并且被呼移动终端跟主呼移动终端不在同一个AAS中,此时主呼叫终端必须寻找到一个可达到通信要求的中继终端来接入到3 Mobile terminal and are not in the same AAS, then the candidate set of calling a mobile terminal by the base station into the active set, the active set of the current base station enters the candidate set, performs horizontal 3G network to the 3G network handover; (. 3) 3G network to switching Ad hoc networks: when the main calling mobile terminal and the called mobile terminal in the same AAS, the main calling mobile terminal and the called mobile terminal can directly communicate with the Ad hoc network; if the previous communication with each other, the main calling mobile terminal and are calling mobile terminal has to communicate via 3G network, and, in the course of communication, the mobile periodically scans around the main calling terminal may set up a mobile terminal Ad hoc network and updated AAS, If the called mobile terminal enters the same terminal moves AAS calling in, can be done directly communicate with the Ad hoc network, performing a handover from the 3G network to the vertical Ad hoc network; if the active set and the candidate set measurement station PCCPCH RSCP of less than RSCP_DL_ADD, and the called mobile terminal with the main calling mobile terminal AAS is not the same, in which case the calling terminal must find the main relay terminal can reach a communication requirements to access to 3 G网络中,其中,中继终端与基站之间的链接是通过3G网络,而主呼移动终端与中继终端之间的链接则需要通过Ad hoc网络来完成,因此,对于主呼移动终端来说也需要一次3G网络到Ad hoc网络的垂直切换; (4) Ad hoc网络到3G网络的切换: 如果主呼移动终端和被呼移动终端一开始用Ad hoc网络进行通信,但在通信的过程中,因为终端的移动而使得主呼移动终端和被呼移动终端不在同一个AAS中,此时如果活动集或候选集中测量的基站PCCPCH的RSCP最大值大于RSCP_DL_ADD,则执行Ad hoc网络到3G网络的垂直切换。 G network, wherein the link between the relay terminal and the base station via the 3G network and the link between the calling mobile terminal and the main relay terminal needs to be done by the Ad hoc network, therefore, call for the mobile terminal to the main say needs a 3G network to a vertical Ad hoc network handover; handover (. 4) Ad hoc network to the 3G network: If the main calling mobile terminal and a called mobile terminal started communication with the Ad hoc network, but in the process of communication because the winner of the mobile terminal calling a called mobile terminal and the mobile terminal is not the same AAS, in which case if the active set or candidate set base station of the PCCPCH RSCP measurement greater than the maximum RSCP_DL_ADD, Ad hoc network is performed to the 3G network the vertical handover.
2.如权利要求1所述的3G与Ad hoc异构网络的切换方法,其特征在于,还包括RSS_ADH0C_ADD和RSS_ADH0C_DR0P,所述RSS_ADHOC_ADD为组建Ad hoc网络的信号功率门限值,如果主呼移动终端从被呼移动终端接收到的最大信号功率大于RSS_ADHOC_ADD,则这两个移动终端建立Ad hoc网络直接进行通信;所述RSS_ADH0C_DR0P为断开Ad hoc网络的信号功率门限值,如果主呼移动终端从被呼移动终端接收到的最大信号功率低于RSS_ADHOC_DROP,则这两个终端断开他们之间的Adhoc网络通信链路。 2. The method according to 3G handover. 1 Ad hoc heterogeneous network as claimed in claim, characterized in that, further comprising RSS_ADH0C_ADD and RSS_ADH0C_DR0P, RSS_ADHOC_ADD the signal power threshold value for the formation of Ad hoc network, if the mobile terminal Calling received from the calling mobile terminal is greater than the maximum signal power RSS_ADHOC_ADD, then the two mobile terminals to establish direct communication Ad hoc network; the Ad hoc network RSS_ADH0C_DR0P OFF signal power threshold value, if the mobile terminal from the calling call is received by the mobile terminal to the maximum signal power is lower than RSS_ADHOC_DROP, then the two terminal disconnects Adhoc network communication link between them.
3.如权利要求1所述的3G与Ad hoc异构网络的切换方法,其特征在于,还包括T和RSCP_DL_DROP,所述T为切换计时器门限,主呼移动终端每隔时间T测量一次Ad hoc网络信号;所述RSCP_DL_DROP为切换测量启动门限,当主呼移动终端接收到当前基站的PCCPCH的RSCP低于RSCP_DL_DROP的时候,启动3G网络切换测量。 3. The method according to 3G handover 1 Ad hoc heterogeneous network as claimed in claim, characterized in that, further comprising a T and RSCP_DL_DROP, the timer T is the switching threshold, the mobile terminal Calling time T measured once every Ad hoc network signal; RSCP_DL_DROP start threshold and the handover measurements, when the calling mobile terminal receives the main current base station is less than the PCCPCH RSCP RSCP_DL_DROP, start the handover measurements 3G network.
4.如权利要求3所述的3G与Ad hoc异构网络的切换方法,其特征在于,所述T为5ms。 4. The method according to 3G handover 3 Ad hoc heterogeneous network as claimed in claim, wherein the T is 5ms.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101288276A (en) 2005-08-26 2008-10-15 布拉德福德大学 Method and apparatus for supporting an-hoc networking over umts (universal mobile telecommunications system) protocol
CN102075893A (en) 2011-01-12 2011-05-25 暨南大学 Emergency communication system and method based on wireless cellular network and Ad-hoc network

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101288276A (en) 2005-08-26 2008-10-15 布拉德福德大学 Method and apparatus for supporting an-hoc networking over umts (universal mobile telecommunications system) protocol
CN102075893A (en) 2011-01-12 2011-05-25 暨南大学 Emergency communication system and method based on wireless cellular network and Ad-hoc network

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李旭杰等.3G/ad hoc融合网络的性能分析.《东南大学学报(英文版)》.2011,(第3期),

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