WO2012051842A1 - Accessing method and device in heterogeneous network - Google Patents

Accessing method and device in heterogeneous network Download PDF

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Publication number
WO2012051842A1
WO2012051842A1 PCT/CN2011/073099 CN2011073099W WO2012051842A1 WO 2012051842 A1 WO2012051842 A1 WO 2012051842A1 CN 2011073099 W CN2011073099 W CN 2011073099W WO 2012051842 A1 WO2012051842 A1 WO 2012051842A1
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Prior art keywords
network
access
user
wireless
information
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PCT/CN2011/073099
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French (fr)
Chinese (zh)
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朱昀
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中兴通讯股份有限公司
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Publication of WO2012051842A1 publication Critical patent/WO2012051842A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service

Definitions

  • the present invention relates to a network access method and device, and in particular, to an access method and device in a heterogeneous network.
  • BACKGROUND OF THE INVENTION The goal of future mobile communication is to communicate freely by anyone, anytime, anywhere, in any way, and no single wireless access technology can satisfy the needs of all users. Therefore, one of the main features of the future mobile communication network is the coexistence of various heterogeneous wireless networks, which complement each other and integrate seamlessly into a unified network environment, providing users with an ubiquitous optimal service experience.
  • it is accompanied by how to integrate various access methods in a complex hybrid network with multiple wireless access methods to form a unified solution, and optimal use of various radio resources becomes challenging in heterogeneous networks. The problem.
  • heterogeneous multi-mode terminals although it has multiple wireless interfaces, how to intelligently select the network in the actual wireless environment, so that the optimal user experience of mobile users is a very complicated problem.
  • a heterogeneous hybrid network consisting of two widely used wireless technologies, namely, a 3rd Generation Partnership Project (3GPP) network and a Wireless Local Area Network (Wireless Local Area Network)
  • 3GPP 3rd Generation Partnership Project
  • WLAN Wireless Local Area Network
  • the prior art simply selects the access network according to the signal quality of each wireless network measured by the terminal. That is, when a heterogeneous terminal is in a specific network environment, it continuously measures the wireless access network signals that it can hear and evaluates the strength or quality of the measured signal. At a time, the signal value from a wireless network reaches a preset threshold, or is better than the wireless network signal value of the heterogeneous terminal is now, then the heterogeneous terminal will access the new wireless network. go with.
  • the existing method does not achieve the original intention of designing 3GPP and WLAN heterogeneous networks, and ignores the user's demand for different network preferences and the requirements of the bearer service itself.
  • the object of the present invention is to provide an access method and device in a heterogeneous network, which can meet user requirements and service applications and implement adaptive access.
  • an access method in a heterogeneous network including: receiving a user's demand for different radio access networks; collecting each radio access network information; The wireless network is selected according to the requirement of the access network and the wireless access network information; and the user service is accessed to the selected wireless network according to the selection result of the selected wireless network.
  • the user's requirements for different wireless access networks include the user's preference for different wireless access networks and the needs of the user's required bearer services.
  • the user sets the user's preference for different wireless access networks through a graphical user interface, and the user's requirements for different wireless access networks are represented by one of the 3-7 scale methods.
  • the collecting the radio access network information includes: collecting the radio access network information of the physical layer and the link layer, where the radio access network information includes a signal strength, a frequency bandwidth, a network delay, and a wireless system type. , network operator information and combinations thereof.
  • the step of selecting a wireless network according to the requirements of the user for different radio access networks and the radio access network information includes the following steps: establishing a decision matrix of each radio access network information; Correcting the result of the decision matrix of each radio access network information by using the user requirement weight, calculating an information entropy value; sorting the information entropy values of each radio access radio network to select a wireless network with the largest information entropy value.
  • the user requirement weight is obtained by comparing the user's desired bearer service to the user's preference level.
  • the step of selecting a wireless network step based on the user's demand for different wireless access networks and the wireless access network information.
  • the step of accessing the user service to the selected wireless network according to the selection result of the selecting network step comprises the steps of: opening an interface of the wireless network; registering with the wireless network, and registering registration information of the user terminal; Modify the network information in the internal list of the terminal.
  • the step of arranging the user service access to select the wireless network step 4 according to the selection result of the selecting the network step further includes a step of disconnecting from the original network, where the step 4 is disconnected from the original network. Send a registration message to the original network, and delete the network in the internal list of the terminal.
  • an access device in a heterogeneous network including a demand receiving module, an access adaptation module, and a mobility management module, where: the demand receiving module is configured to receive different users.
  • the wireless access network needs to send the request to the mobility management module;
  • the access adaptation module is configured to collect each wireless access network information and send the wireless access network information to the a mobile management module; receiving a selection result of the wireless network sent by the mobility management module, and performing access to the selected wireless network according to the selection result;
  • the mobility management module configured to receive according to receiving from the demand receiving module And the required information and the wireless network information received from the access adaptation module, select the wireless network, and send the selection result to the access adaptation module.
  • the demand receiving module includes a graphical user interface.
  • FIG. 1 is a flow chart of an access method in a heterogeneous network according to an embodiment of the present invention
  • FIG. 2 is a flow chart of steps of selecting an access method in a heterogeneous network according to an embodiment of the present invention
  • an access method in a heterogeneous network includes the following steps: Step 4: S1: Receive user requirements for different wireless access networks, including user preferences for different wireless access networks.
  • the user needs to carry the needs of the business itself.
  • the user sets the user's preference for different wireless access networks through a graphical user interface.
  • You can use the 3-7 scale method to indicate that the user is not The level of preference with the wireless access network.
  • the 5-level scale method can be marked as equal, strong, strong, strong and absolutely strong.
  • the user's preference level can be maintained and updated, either in a periodic trigger or when the user preference information is updated.
  • the requirements of the user's required bearer service are usually represented by the quality of service (QoS) requirements of the service, including the physical bandwidth, wireless signal quality, and service delay required to carry the service. Request and so on.
  • Step S102 Collect each radio access network information.
  • the information about the switched radio access network of the physical layer and the link layer is collected, including information such as signal strength, frequency bandwidth, network delay, system type, network operator information, or a combination thereof.
  • Step S103 Select a wireless network according to the user's demand for different wireless access networks and each wireless access network information.
  • the optimal wireless network is selected according to the requirements of the user for different wireless access networks and the wireless access network information. Specifically, as shown in FIG.
  • the user is required to use different wireless services for different bearer services required by the user.
  • the preference level of the access network is compared in pairs to obtain the demand weight; the decision matrix of each network information is established, the decision matrix result of each network information is corrected by the demand weight, and the information entropy value is calculated.
  • users' preferences for network usage can be measured in five ways: absolute, strong, strong, strong, and equal.
  • Table 1 Table 1
  • the specific weighting method may be multiplication, multiplication by logarithm, and the like;
  • the comprehensive information entropy value S of the scheme is the sum of the entropy values of each of the items. In all schemes, the scheme with the largest comprehensive information depreciation is the optimal bearer scheme we require. Finally, the comprehensive information entropy of each wireless network can be obtained, and the optimal wireless network can be selected.
  • the analytic hierarchy process can be used to simplify the above process of finding an optimal bearer scheme.
  • the above method of analytic hierarchy process is a method of decomposing complex problems into thousands of relatively simple sub-problems, and then summarizing them to obtain the optimal solution of the original problem, which is often used in solving optimization problems.
  • the objective factor is gradually divided into thousands of levels. Each level is equivalent to reducing one variable, which reduces the complexity of the problem by one level.
  • the lowest level decision is the alternative solution. Which level of objective factor is assigned is based on the degree of importance determined by subjective factors.
  • Step S104 Access the user service to the selected wireless network according to the selection result of the selected wireless network.
  • the connection action to the optimal network and the disconnection action with the original network are performed according to the selection result of the selection network step.
  • the optimal wireless network interface is opened, the optimal network is registered, the optimal wireless network is accessed, and the network cell is synchronized, and the system broadcast message of the cell is read; and the disconnection from the original network is performed, and the original cell may be Send "go to register, message, or simply delete the network in the internal list of the terminal; and modify the network information in the internal list of the terminal.
  • the access device in the heterogeneous network including The demand receiving module 1, the mobile management module 2, and the access adaptation module 3.
  • the demand receiving module 1 uses a user interface interface to receive user requirements for different wireless access networks, and the requirements include users accessing different wireless access networks. The preferences and the requirements of the bearer service itself.
  • the user can set the preference level ij for different wireless access networks through the graphical user interface 11, which can be represented by one of the 3-7 scale methods. Preferably, it can be utilized.
  • the 5-level scale method scales the information of the user's preference, for example, using the following five levels to determine the metric: equal, strong, strong, reluctant, and absolute Strong, used to describe the user's differences in the preference information of the two schemes.
  • the user's preference level can be maintained and updated, either in the cycle trigger mode or when the user preference information is updated.
  • the demand information is sent to the mobility management module 2.
  • the access adaptation module 3 uses the measurement module to collect information about each wireless access network, thereby providing the terminal with a list of information that can be selected as the wireless access network.
  • the terminal includes neighboring networks of various wireless access standards supported by the terminal, and provides information such as signal strength, frequency bandwidth, delay, system type, and network operator information for each adjacent network.
  • the collected network information is sent to the mobility management module 2.
  • the mobility management module 2 such as a processor and an operator, according to the user's demand information for different radio access networks received from the demand receiving module 1 and the wireless network information received from the access adaptation module 3, thereby
  • the access selection decision process is triggered, the information entropy value of each wireless network is calculated, the information entropy values of each wireless network are sorted, the optimal wireless network is selected, and the result is sent to the access adaptation module 3.
  • the access adaptation module 3 receives the selection result of the optimal network sent by the mobility management module 2 and performs access to the optimal wireless network according to the selection result, and specifically includes a connection action to the optimal network and a disconnection action with the original network.

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

Abstract

The present invention discloses an accessing method and device in a heterogeneous network. The method comprises: receiving user requirements for different wireless access networks; collecting information for each wireless access network; selecting a wireless network according to the user requirements for different wireless access networks and the information for each wireless access network; giving the user services access to the selected wireless network according to the selection result for selecting the wireless network. The present invention improves the quality and efficiency for network access.

Description

一种异构网络中的接入方法和设备 技术领域 本发明涉及一种网络接入方法和设备， 特别涉及一种异构网络中的接入 方法和设备。 背景技术 未来移动通信的目标是任何人、 任何时间、 任何地点、 以任何方式进行 随意的信息沟通，而任何单一的无线接入技术都不可能满足所有用户的需求。 因此未来的移动通信网络的主要特征之一就是各种异构无线网络共存， 它们 相互补充、 无缝集成到统一的网络环境中， 为用户提供无所不在的最优业务 体验。 但伴随而来的， 在这种复杂的多无线接入方式的混合网络中如何整合 各种接入方式形成统一的解决方案， 并且最优化地利用各个无线资源成为了 异构网络中具有挑战性的问题。 尤其是对于异构的多模终端而言， 它虽然具 有多个无线接口， 但具体到实际无线环境中该如何智能地选择网络， 从而使 得移动用户最优的用户体验是一个很复杂的问题。 例如实际工程中有着广泛 应用的两种无线技术所组成的异构混合网络， 即第三代合作伙伴计划 （3rd Generation Partnership Project, 简称为 3GPP ) 网络和无线局 i或网 （Wireless Local Area Network , 简称为 WLAN )网络组成的异构网络， 网络设计者设计 网络时的初衷往往是由 3GPP网络提供低速率、 广域的覆盖， 由 WLAN网络 为用户提供高速率、 热点覆盖。 这需要一种可以满足业务应用、 自适应的接 入方法来实现。 而现有技术是才艮据终端所测量的各无线网络的信号质量来简 单地对接入网络进行选择。 也就是说， 当异构终端处在某个具体的网络环境 中， 它不停地对其所能侦听到的各个无线接入网络信号进行测量， 并评估测 量信号的强度或质量， 当某个时刻， 来自某个无线网络的信号值达到预先设 定的门限， 或者是优于异构终端现在所处的无线网络信号值一定程度， 那么 异构终端就会接入到这个新无线网络中去。 釆用现有的方法并不能实现前面 所说的设计 3GPP和 WLAN异构网络的覆盖初衷，并且忽视了用户对不同网 络喜好的需求和承载业务本身的需求。 发明内容 本发明的目的是为了克服现有技术的不足， 提供一种异构网络中的接入 方法和设备，该方法和设备可以满足用户需求及业务应用， 实现自适应接入。 根据本发明的一个方面， 提供了一种异构网络中的接入方法， 包括： 接 收用户对不同无线接入网络的需求； 收集各无线接入网络信息； 才艮据所述用 户对不同无线接入网络的需求和所述各无线接入网络信息选择无线网络； 才艮 据所述选择无线网络的选择结果将用户业务接入所选择的无线网络。 所述用户对不同无线接入网络的需求包括用户对不同无线接入网络的喜 好和用户所需承载业务本身的需求。 所述用户通过图形用户接口来设定所述用户对不同无线接入网络的喜 好， 所述用户对不同无线接入网络的需求用 3-7级标度法其中之一表示。 所述收集各无线接入网络信息包括： 收集物理层、 链路层的所述各无线 接入网络信息， 所述各无线接入网络信息包括信号强度、 频率带宽、 网络时 延、 无线制式类型、 网络运营商信息及其组合。 所述才艮据所述用户对不同无线接入网络的需求和所述各无线接入网络信 息选择无线网络步 4聚包括以下步 4聚： 建立所述各无线接入网络信息的判决矩 阵； 使用用户需求权值修正所述各无线接入网络信息的判决矩阵结果， 计算 信息熵值； 将所述各无线接入无线网络的信息熵值进行排序， 选择信息熵值 最大的无线网络。 所述用户需求权值是针对所述用户所需承载业务对用户喜好级别进行两 两比较得来的。 所述根据所述用户对不同无线接入网络的需求和所述各无线接入网络信 息选择无线网络步骤釆用层次的分析方法。 所述根据所述选择网络步骤的选择结果将用户业务接入所选择的无线网 络步骤包括以下步骤： 打开所述无线网络的接口； 向所述无线网络注册， 登 记所述用户终端的注册信息； 修改终端内部列表中的网络信息。 所述根据所述选择网络步骤的选择结果将用户业务接入所选择的无线网 络步 4聚还包括与原网络断开的步 4聚， 其中， 所述与原网络断开的步 4聚中， 向 原网络发送去注册消息， 在终端内部列表中删除该网络。 根据本发明的另一个方面， 提供了一种异构网络中的接入设备， 包括需 求接收模块、 接入适配模块、 移动管理模块， 其中： 所述需求接收模块： 设 置为接收用户对不同无线接入网络的需求， 并将该需求发送给所述移动管理 模块； 所述接入适配模块： 设置为收集各无线接入网络信息并将所述各无线 接入网络信息发送给所述移动管理模块； 接收所述移动管理模块发送的无线 网络的选择结果， 并根据所述选择结果执行接入所选择的无线网络； 所述移 动管理模块： 设置为根据从所述需求接收模块中接收到的需求信息和从所述 接入适配模块接收的各无线网络信息， 选择所述无线网络， 并将所述选择结 果发送给所述接入适配模块。 所述需求接收模块包括图形用户接口。 本发明的异构网络中的接入方法和设备的技术方案根据用户的喜好、 承 载业务需求、 无线网络信息自主地完成网络的感知和最优的接入网络选择， 解决了相关技术忽视了用户对不同网络喜好的需求和承载业务本身的需求的 问题， 提高了网络接入的质量和效率。 附图说明 图 1是根据本发明实施例的异构网络中的接入方法流程图； 图 2 是根据本发明实施例的异构网络中的接入方法选择网络步骤流程 图； 图 3是根据本发明实施例的异构网络中的接入设备结构图。 具体实施方式 参考图 1 , 一种异构网络中的接入方法， 包括以下步骤： 步 4聚 S 101 : 接收用户对不同无线接入网络的需求， 包括用户对不同无线 接入网络的喜好和用户所需承载业务本身的需求。 用户通过图形用户接口来 设定用户对不同无线接入网络的喜好。 可釆用 3-7级标度法来表示用户对不 同无线接入网络的喜好级别。 如 5级标度法可标为相等、 较强、 强、 很强和 绝对强。 用户的喜好级别可进行维护和更新， 既可釆用周期触发的方式， 也 可在用户喜好信息有更新时触发。 用户所需承载业务本身的需求在工程中通 常可以用业务的服务质量（Quality of Service , 简称为 QoS )要求所表示， 具 体包括承载该项业务所需要的物理带宽、 无线信号质量、 业务时延要求等。 步骤 S 102: 收集各无线接入网络信息。 优选地， 收集物理层、 链路层的 有关切换的无线接入网络信息， 包括信号强度、 频率带宽、 网络时延、 制式 类型、 网络运营商信息等信息， 或者是它们的组合。 步骤 S 103 :根据用户对不同无线接入网络的需求和各无线接入网络信息 选择无线网络。 优选地， 才艮据用户对不同无线接入网络的需求和各无线接入 网络信息选择最优无线网络； 具体地， 如图 2所示， 针对用户所需不同的承 载业务将用户对不同无线接入网络的喜好级别进行两两比较，得到需求权值； 建立各网络信息的判决矩阵， 用需求权值修正各网络信息的判决矩阵结果， 计算信息熵值。 例如用户对网络使用的喜好可以用 5种判断度量： 绝对强、 很强、 强、 较强、 相等。 具体地， 针对用户所需的不同承载业务， 将用户对不同无线接 入网络的喜好级别的两两比较可通过下表 1来表征： 表 1TECHNICAL FIELD The present invention relates to a network access method and device, and in particular, to an access method and device in a heterogeneous network. BACKGROUND OF THE INVENTION The goal of future mobile communication is to communicate freely by anyone, anytime, anywhere, in any way, and no single wireless access technology can satisfy the needs of all users. Therefore, one of the main features of the future mobile communication network is the coexistence of various heterogeneous wireless networks, which complement each other and integrate seamlessly into a unified network environment, providing users with an ubiquitous optimal service experience. However, it is accompanied by how to integrate various access methods in a complex hybrid network with multiple wireless access methods to form a unified solution, and optimal use of various radio resources becomes challenging in heterogeneous networks. The problem. Especially for heterogeneous multi-mode terminals, although it has multiple wireless interfaces, how to intelligently select the network in the actual wireless environment, so that the optimal user experience of mobile users is a very complicated problem. For example, in a practical project, a heterogeneous hybrid network consisting of two widely used wireless technologies, namely, a 3rd Generation Partnership Project (3GPP) network and a Wireless Local Area Network (Wireless Local Area Network) Referred to as a heterogeneous network composed of WLAN networks, the original intention of network designers to design networks is to provide low-rate, wide-area coverage by 3GPP networks, and high-speed and hot-cover coverage for users by WLAN networks. This requires an access method that satisfies the business application and is adaptive. However, the prior art simply selects the access network according to the signal quality of each wireless network measured by the terminal. That is, when a heterogeneous terminal is in a specific network environment, it continuously measures the wireless access network signals that it can hear and evaluates the strength or quality of the measured signal. At a time, the signal value from a wireless network reaches a preset threshold, or is better than the wireless network signal value of the heterogeneous terminal is now, then the heterogeneous terminal will access the new wireless network. go with. The existing method does not achieve the original intention of designing 3GPP and WLAN heterogeneous networks, and ignores the user's demand for different network preferences and the requirements of the bearer service itself. SUMMARY OF THE INVENTION The object of the present invention is to provide an access method and device in a heterogeneous network, which can meet user requirements and service applications and implement adaptive access. According to an aspect of the present invention, an access method in a heterogeneous network is provided, including: receiving a user's demand for different radio access networks; collecting each radio access network information; The wireless network is selected according to the requirement of the access network and the wireless access network information; and the user service is accessed to the selected wireless network according to the selection result of the selected wireless network. The user's requirements for different wireless access networks include the user's preference for different wireless access networks and the needs of the user's required bearer services. The user sets the user's preference for different wireless access networks through a graphical user interface, and the user's requirements for different wireless access networks are represented by one of the 3-7 scale methods. The collecting the radio access network information includes: collecting the radio access network information of the physical layer and the link layer, where the radio access network information includes a signal strength, a frequency bandwidth, a network delay, and a wireless system type. , network operator information and combinations thereof. The step of selecting a wireless network according to the requirements of the user for different radio access networks and the radio access network information includes the following steps: establishing a decision matrix of each radio access network information; Correcting the result of the decision matrix of each radio access network information by using the user requirement weight, calculating an information entropy value; sorting the information entropy values of each radio access radio network to select a wireless network with the largest information entropy value. The user requirement weight is obtained by comparing the user's desired bearer service to the user's preference level. The step of selecting a wireless network step based on the user's demand for different wireless access networks and the wireless access network information. The step of accessing the user service to the selected wireless network according to the selection result of the selecting network step comprises the steps of: opening an interface of the wireless network; registering with the wireless network, and registering registration information of the user terminal; Modify the network information in the internal list of the terminal. The step of arranging the user service access to select the wireless network step 4 according to the selection result of the selecting the network step further includes a step of disconnecting from the original network, where the step 4 is disconnected from the original network. Send a registration message to the original network, and delete the network in the internal list of the terminal. According to another aspect of the present invention, an access device in a heterogeneous network is provided, including a demand receiving module, an access adaptation module, and a mobility management module, where: the demand receiving module is configured to receive different users. The wireless access network needs to send the request to the mobility management module; the access adaptation module is configured to collect each wireless access network information and send the wireless access network information to the a mobile management module; receiving a selection result of the wireless network sent by the mobility management module, and performing access to the selected wireless network according to the selection result; the mobility management module: configured to receive according to receiving from the demand receiving module And the required information and the wireless network information received from the access adaptation module, select the wireless network, and send the selection result to the access adaptation module. The demand receiving module includes a graphical user interface. The technical solution of the access method and device in the heterogeneous network of the present invention solves the network perception and the optimal access network selection autonomously according to the user's preference, the bearer service requirement, and the wireless network information, and solves the related technology and neglects the user. The problem of different network preferences and the demand for the bearer service itself improves the quality and efficiency of network access. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a flow chart of an access method in a heterogeneous network according to an embodiment of the present invention; FIG. 2 is a flow chart of steps of selecting an access method in a heterogeneous network according to an embodiment of the present invention; A structural diagram of an access device in a heterogeneous network according to an embodiment of the present invention. DETAILED DESCRIPTION Referring to FIG. 1 , an access method in a heterogeneous network includes the following steps: Step 4: S1: Receive user requirements for different wireless access networks, including user preferences for different wireless access networks. The user needs to carry the needs of the business itself. The user sets the user's preference for different wireless access networks through a graphical user interface. You can use the 3-7 scale method to indicate that the user is not The level of preference with the wireless access network. For example, the 5-level scale method can be marked as equal, strong, strong, strong and absolutely strong. The user's preference level can be maintained and updated, either in a periodic trigger or when the user preference information is updated. The requirements of the user's required bearer service are usually represented by the quality of service (QoS) requirements of the service, including the physical bandwidth, wireless signal quality, and service delay required to carry the service. Request and so on. Step S102: Collect each radio access network information. Preferably, the information about the switched radio access network of the physical layer and the link layer is collected, including information such as signal strength, frequency bandwidth, network delay, system type, network operator information, or a combination thereof. Step S103: Select a wireless network according to the user's demand for different wireless access networks and each wireless access network information. Preferably, the optimal wireless network is selected according to the requirements of the user for different wireless access networks and the wireless access network information. Specifically, as shown in FIG. 2, the user is required to use different wireless services for different bearer services required by the user. The preference level of the access network is compared in pairs to obtain the demand weight; the decision matrix of each network information is established, the decision matrix result of each network information is corrected by the demand weight, and the information entropy value is calculated. For example, users' preferences for network usage can be measured in five ways: absolute, strong, strong, strong, and equal. Specifically, for different bearer services required by the user, comparing the preference levels of the users to different radio access networks can be characterized by the following Table 1: Table 1
Figure imgf000005_0001
Figure imgf000005_0001
针对用户所需的不同 载业务， 都可以有对应的网络喜好度对比； 遍历 不同组合， 可以得到各业务放置方案的用户需求权值 Q:  For the different services required by the user, there may be corresponding network preference comparisons; traversing different combinations, the user demand weights of each service placement scheme can be obtained. Q:
Q, =∑Dim Q, =∑D im
( m=l ..M, 表示有 M个业务， 其中 i表示第 i种业务放置方案） 同时针对各项业务的 Qos 需求可以估计出其在某网络下使用该业务的 话， 用户所能得到的信息量。 例如， 用/^表示业务 m承载在网络 n上时所 能获得的信息量， 建立所有业务承载在不同网络的排列组合的判决矩阵 ( m=l ..M, indicating that there are M services, where i represents the i-th business placement plan) At the same time, for the QoS requirements of each service, it is possible to estimate the amount of information that the user can obtain when using the service under a certain network. For example, use /^ to indicate the amount of information that can be obtained when the service m is carried on the network n, and establish a decision matrix in which all services are arranged in different networks.
Pu P Pu P
P :  P :
P, P, 然后利用前述用户偏好度对该判决矩阵中的元素进行加权， 具体的加权 方法可以是相乘、 取对数相乘等； P, P, and then weighting the elements in the decision matrix by using the foregoing user preference, and the specific weighting method may be multiplication, multiplication by logarithm, and the like;
P mn = f(Q, Pmn) 由此得到修正后的判决矩阵： P mn = f(Q, P mn ) This results in a modified decision matrix:
Pu P Pu P
P =  P =
P, P, 接下来， 从该判决矩阵中抽取行号和列号均不相同的 m个元素， 构成一 个 m个元素的组合， 该组合即代表一个承载方案。 该方案的综合信息熵值 S 是其中每项信息熵值的和。 第珩 在所有方案中，综合信息墒值最大的方案即是我们要求的最优承载方案。 最终可得到各无线网络的综合信息熵， 对其进行排序， 选择最优无线网络。 较优地， 可釆用层次分析法来简化上述求最优承载方案过程。 上述层次分析的方法是一种将复杂的问题分解成若千相对简单的子问题 进行处理， 然后再归总求得原问题最优化解的方法， 其在最优化问题求解中 常有应用。 具体到此处对于异构网络的接入最优化选择而言， 就是将众多的 客观因子逐步地分到若千层次， 每分出一个层次相当于减少一个变量， 使得 问题的复杂度降低一级， 最底层的判决即是备选解决方案。 将哪个客观因子 分到哪个层次是按照主观因素所确定的重要程度进行。 通过层次分析法将原 先复杂矩阵的求解最优解的问题逐层地简化为低维度矩阵求最优解得问题， 然后， 再逐层迭代地求得原复杂问题的解。 这样的选择选择的结果可以折中用户喜好、 业务需求和网络条件， 动态 地选择目标， 使终端具备智能地选择接入网络的功能。 步骤 S 104:根据选择无线网络的选择结果将用户业务接入所选择的无线 网络。 优选地， 根据选择网络步骤的选择结果执行向最优网络的连接动作和 与原网络的断开动作。 具体地， 打开最优无线网络接口， 向最优网络注册， 接入最优无线网络， 与网络小区同步， 读取该小区的***广播消息； 执行与 原网络的断开动作， 可以通过向原小区发送"去注册，，消息， 或者只需简单地 在终端内部列表中删除该网络即可； 并修改终端内部列表中的网络信息。 参考图 3 , —种异构网络中的接入设备， 包括需求接收模块 1、 移动管 理模块 2、 接入适配模块 3。 需求接收模块 1 , 如釆用用户界面接口， 接收用户对不同无线接入网络 的需求， 需求包括用户对不同无线接入网络的喜好和承载业务本身的需求。 用户可通过图形用户接口 11来对不同无线接入网络设置喜好级另 ij ,具体可釆 用 3-7级标度法其中之一来表示。 优选地， 可以利用 5级标度法标度用户偏好的信息， 例如， 釆用以下 5 个级别判断度量： 相等、 较强、 强、 艮强和绝对强， 用以描述用户对两种方 案偏好信息的差异性。 用户的喜好级别可进行维护和更新， 既可釆用周期触 发的方式， 也可在用户喜好信息有更新时触发。 需求接收模块 1将需求信息 发送给移动管理模块 2。 接入适配模块 3 , 如釆用测量模块， 收集各无线接入网络信息， 从而向 终端提供了可供选择为无线接入网络的信息列表， 这个列表里包括了终端所 支持的各种无线接入制式的相邻网络， 并对每个相邻网络提供信号强度、 频 率带宽、 时延、 制式类型、 网络运营商信息等信息。 接入适配模块 3将收集 的各网络信息发送给移动管理模块 2。 移动管理模块 2 , 如釆用处理器和运算器， 根据从需求接收模块 1 中接 收到的用户对不同无线接入网络的需求信息和从接入适配模块 3接收的各无 线网络信息， 从而触发接入选择判决过程， 计算各无线网络的信息熵值， 将 各无线网络的信息熵值进行排序， 选择最优无线网络， 并将结果发送给接入 适配模块 3。 接入适配模块 3接收移动管理模块 2发送的最优网络的选择结果并根据 选择结果执行接入最优无线网络， 具体包括向最优网络的连接动作和与原网 络的断开动作。 本技术领域中的普通技术人员应当认识到， 以上的实施例仅是用来说明 本发明， 而并非用作为对本发明的限定， 只要在本发明的实质精神范围内， 对以上所述实施例的变化、 变型都将落在本发明的权利要求书范围内。 P, P, Next, extract m elements whose row numbers and column numbers are different from the decision matrix, and form a combination of m elements, which represents a bearer scheme. The comprehensive information entropy value S of the scheme is the sum of the entropy values of each of the items. In all schemes, the scheme with the largest comprehensive information depreciation is the optimal bearer scheme we require. Finally, the comprehensive information entropy of each wireless network can be obtained, and the optimal wireless network can be selected. Preferably, the analytic hierarchy process can be used to simplify the above process of finding an optimal bearer scheme. The above method of analytic hierarchy process is a method of decomposing complex problems into thousands of relatively simple sub-problems, and then summarizing them to obtain the optimal solution of the original problem, which is often used in solving optimization problems. Specifically, here, for the optimization of access to heterogeneous networks, there are many The objective factor is gradually divided into thousands of levels. Each level is equivalent to reducing one variable, which reduces the complexity of the problem by one level. The lowest level decision is the alternative solution. Which level of objective factor is assigned is based on the degree of importance determined by subjective factors. Through the analytic hierarchy process, the problem of solving the optimal solution of the original complex matrix is simplified layer by layer into the low-dimensional matrix to obtain the optimal solution problem. Then, the solution of the original complex problem is obtained iteratively layer by layer. The result of such selection selection can compromise user preferences, business needs, and network conditions, dynamically selecting targets, and enabling the terminal to intelligently select the function of accessing the network. Step S104: Access the user service to the selected wireless network according to the selection result of the selected wireless network. Preferably, the connection action to the optimal network and the disconnection action with the original network are performed according to the selection result of the selection network step. Specifically, the optimal wireless network interface is opened, the optimal network is registered, the optimal wireless network is accessed, and the network cell is synchronized, and the system broadcast message of the cell is read; and the disconnection from the original network is performed, and the original cell may be Send "go to register, message, or simply delete the network in the internal list of the terminal; and modify the network information in the internal list of the terminal. Referring to Figure 3, the access device in the heterogeneous network, including The demand receiving module 1, the mobile management module 2, and the access adaptation module 3. The demand receiving module 1 , for example, uses a user interface interface to receive user requirements for different wireless access networks, and the requirements include users accessing different wireless access networks. The preferences and the requirements of the bearer service itself. The user can set the preference level ij for different wireless access networks through the graphical user interface 11, which can be represented by one of the 3-7 scale methods. Preferably, it can be utilized. The 5-level scale method scales the information of the user's preference, for example, using the following five levels to determine the metric: equal, strong, strong, reluctant, and absolute Strong, used to describe the user's differences in the preference information of the two schemes. The user's preference level can be maintained and updated, either in the cycle trigger mode or when the user preference information is updated. The demand information is sent to the mobility management module 2. The access adaptation module 3, for example, uses the measurement module to collect information about each wireless access network, thereby providing the terminal with a list of information that can be selected as the wireless access network. It includes neighboring networks of various wireless access standards supported by the terminal, and provides information such as signal strength, frequency bandwidth, delay, system type, and network operator information for each adjacent network. 3 The collected network information is sent to the mobility management module 2. The mobility management module 2, such as a processor and an operator, according to the user's demand information for different radio access networks received from the demand receiving module 1 and the wireless network information received from the access adaptation module 3, thereby The access selection decision process is triggered, the information entropy value of each wireless network is calculated, the information entropy values of each wireless network are sorted, the optimal wireless network is selected, and the result is sent to the access adaptation module 3. The access adaptation module 3 receives the selection result of the optimal network sent by the mobility management module 2 and performs access to the optimal wireless network according to the selection result, and specifically includes a connection action to the optimal network and a disconnection action with the original network. It is to be understood by those skilled in the art that the above-described embodiments are only intended to illustrate the invention, and are not intended to limit the invention, as long as it is within the spirit of the invention, Variations and modifications are intended to fall within the scope of the appended claims.

Claims

权 利 要 求 书 一种异构网络中的接入方法， 包括： Claims A method of access in a heterogeneous network, including:
接收用户对不同无线接入网络的需求；  Receiving user demand for different wireless access networks;
收集各无线接入网络信息；  Collecting information of each wireless access network;
才艮据所述用户对不同无线接入网络的需求和所述各无线接入网络 信息选择无线网络；  Selecting a wireless network according to the user's demand for different wireless access networks and the wireless access network information;
才艮据所述选择无线网络的选择结果将用户业务接入所选择的无线 网络。 根据权利要求 1所述的异构网络中的接入方法， 其中， 所述用户对不 同无线接入网络的需求包括用户对不同无线接入网络的喜好和用户所 需承载业务本身的需求。 根据权利要求 2所述的异构网络中的接入方法， 其中， 所述用户通过 图形用户接口来设定所述用户对不同无线接入网络的喜好， 所述用户 对不同无线接入网络的需求用 3-7级标度法其中之一表示。 根据权利要求 1所述的异构网络中的接入方法， 其中， 所述收集各无 线接入网络信息包括：  According to the selection result of the selection of the wireless network, the user service is accessed to the selected wireless network. The access method in the heterogeneous network according to claim 1, wherein the requirements of the user for different radio access networks include the user's preference for different radio access networks and the needs of the user to carry the service itself. The access method in the heterogeneous network according to claim 2, wherein the user sets the user's preference for different wireless access networks through a graphical user interface, and the user accesses different wireless access networks. The demand is expressed in one of the 3-7 scale methods. The access method in the heterogeneous network according to claim 1, wherein the collecting the information of each wireless access network includes:
收集物理层、 链路层的所述各无线接入网络信息， 所述各无线接 入网络信息包括信号强度、 频率带宽、 网络时延、 无线制式类型、 网 络运营商信息及其组合。 根据权利要求 1所述的异构网络中的接入方法， 其中， 所述根据所述 用户对不同无线接入网络的需求和所述各无线接入网络信息选择无线 网络步 4聚包括以下步骤：  Collecting, by the physical layer and the link layer, the wireless access network information, where the wireless access network information includes signal strength, frequency bandwidth, network delay, wireless system type, network operator information, and combinations thereof. The access method in the heterogeneous network according to claim 1, wherein the step of selecting a wireless network according to the requirements of the user for different radio access networks and the radio access network information comprises the following steps :
建立所述各无线接入网络信息的判决矩阵；  Establishing a decision matrix of each radio access network information;
使用用户需求权值修正所述各无线接入网络信息的判决矩阵结 果， 计算信息熵值；  Correcting the decision matrix result of each radio access network information by using the user requirement weight, and calculating the information entropy value;
将所述各无线接入无线网络的信息熵值进行排序， 选择信息熵值 最大的无线网络。 The information entropy values of the wireless access wireless networks are sorted to select a wireless network with the largest information entropy value.
6. 根据权利要求 5所述的异构网络中的接入方法， 其中， 所述用户需求 权值是针对所述用户所需承载业务对用户喜好级别进行两两比较得来 的。 The access method in the heterogeneous network according to claim 5, wherein the user demand weight is obtained by comparing the user preference level to the user preference level.
7. 根据权利要求 1或 5所述的异构网络中的接入方法， 其中， 所述根据 所述用户对不同无线接入网络的需求和所述各无线接入网络信息选择 无线网络步骤釆用层次的分析方法。 The access method in the heterogeneous network according to claim 1 or 5, wherein the step of selecting a wireless network according to the requirements of the user for different radio access networks and the radio access network information釆Use a hierarchical analysis method.
8. 根据权利要求 1所述的异构网络中的接入方法， 其中， 所述根据所述 选择网络步骤的选择结果将用户业务接入所选择的无线网络步骤包括 以下步 4聚： The access method in the heterogeneous network according to claim 1, wherein the step of accessing the user service to the selected wireless network according to the selection result of the selecting the network step comprises the following steps:
打开所述无线网络的接口；  Opening an interface of the wireless network;
向所述无线网络注册， 登记所述用户终端的注册信息； 修改终端内部列表中的网络信息。  Registering with the wireless network, registering registration information of the user terminal; modifying network information in the internal list of the terminal.
9. 根据权利要求 1所述的异构网络中的接入方法， 其中， 所述根据所述 选择网络步骤的选择结果将用户业务接入所选择的无线网络步骤还包 括与原网络断开的步 4聚， 其中， 所述与原网络断开的步 4聚中， 向原网 络发送去注册消息， 在终端内部列表中删除该网络。 The access method in the heterogeneous network according to claim 1, wherein the step of accessing the user service to the selected wireless network according to the selection result of the selecting the network step further comprises disconnecting from the original network. Step 4: The step of disconnecting from the original network sends a deregistration message to the original network, and deletes the network in the internal list of the terminal.
10. —种异构网络中的接入设备， 包括需求接收模块、 接入适配模块、 移 动管理模块， 其中： 10. An access device in a heterogeneous network, including a demand receiving module, an access adaptation module, and a mobility management module, where:
所述需求接收模块：设置为接收用户对不同无线接入网络的需求， 并将该需求发送给所述移动管理模块；  The demand receiving module is configured to receive a requirement of a user for different wireless access networks, and send the requirement to the mobility management module;
所述接入适配模块： 设置为收集各无线接入网络信息并将所述各 无线接入网络信息发送给所述移动管理模块； 接收所述移动管理模块 发送的无线网络的选择结果， 并 居所述选择结果执行接入所选择的 无线网络；  The access adaptation module is configured to collect each radio access network information and send the radio access network information to the mobility management module, and receive a selection result of the radio network sent by the mobility management module, and Performing access to the selected wireless network in the result of the selection;
所述移动管理模块： 设置为根据从所述需求接收模块中接收到的 需求信息和从所述接入适配模块接收的各无线网络信息， 选择所述无 线网络， 并将所述选择结果发送给所述接入适配模块。  The mobility management module is configured to select the wireless network according to the demand information received from the demand receiving module and each wireless network information received from the access adaptation module, and send the selection result The access adaptation module is provided.
11. 根据权利要求 10所述的异构网络中的接入设备， 其中， 所述需求接收 模块包括图形用户接口。 11. The access device in a heterogeneous network according to claim 10, wherein the demand receiving module comprises a graphical user interface.
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