WO2010009678A1 - Method, intercommunicating gateway, access point and system for processing lan data - Google Patents

Abstract

A method, intercommunicating gateway, access point and system for processing LAN data are provided by the embodiments of the present invention. Wherein the intercommunicating gateway comprises: a voice processing unit for performing the establishment and control of the call connection, or for performing the establishment and control of the call connection and transferring the service data to the mobile voice service between the mobile terminals in the LAN and the intercommunicating voice service between the mobile terminal and the fixed terminal in the LAN; a mobile managing unit for performing the mobility management and wireless resource management to the mobile terminals in the LAN. Application of the embodiments of the present invention could solve the problem of the long service implementing path and the complex path processing caused by that the service intercommunicating of the mobile terminal and fixed terminal in the LAN need to pass the access network and core network of the operator.

Description

 Method for processing local area network data, interworking gateway, access point and system The present application claims a method for processing LAN data, an interworking gateway, an access point, and the application number is CN 200810029726.2, which is filed on July 24, 2008. The priority of the Chinese application of the system, the entire contents of which is incorporated herein by reference. Technical field

 The present invention relates to the field of communications, and in particular, to a method for processing local area network data, an interworking gateway, an access point, and a system. Background technique

 With the development of enterprise information and network mobility, more and more enterprises have put forward the needs of enterprise mobile office. At present, some solutions for implementing mobile enterprise LAN are proposed. The main idea of these solutions is to fix the local enterprise LAN. On the basis of this, the mobile operator re-establishes a new mobile network for the enterprise. The interworking between the fixed network and the mobile network is realized through the operator's core network. Unlike fixed local area networks, the control of mobile enterprise local area networks is the operator.

 The inventors of the present invention have found that at least the following problems exist in the prior art: The service interworking in the internal area of the local area network needs to be via the access network and the core network of the operator, resulting in a long service path and complicated path processing. Summary of the invention

 The technical problem to be solved by the embodiments of the present invention is to provide a method for processing local area network data, an interworking gateway, an access point, and a system. The problem that the service interworking in the local area network in the prior art needs to pass through the access network and the core network of the operator leads to a problem that the service implementation path is long and the path processing is complicated.

 In order to solve the above technical problem, an embodiment of the present invention provides a method for processing local area network data, including: an interworking gateway receiving a call request, where the call request includes: a mobile voice call request sent between mobile terminals in a local area network, or Inter-phone call request sent between the mobile terminal in the local area network and the fixed terminal in the local area network: The interworking gateway performs call connection establishment control according to the received call request.

An embodiment of the present invention further provides an interworking gateway, including: a voice processing unit, configured to use a local area The voice service in the network performs call connection establishment control, where the voice service in the local area network includes: a mobile voice service between mobile terminals in the local area network, or a mobile terminal in the local area network and a fixed in the local area network a mutual voice service between terminals; a mobility management unit, configured to perform mobility management on mobile terminals in the local area network.

 The embodiment of the present invention further provides another method for processing local area network data, including: receiving, by an access point, a data service request, where the data service request includes: a data service request sent between mobile terminals in a local area network, or moving in the local area network a data service request sent between the terminal and the fixed terminal in the local area network; the access point performs connection establishment control on the data service according to the data service request, and forwards the data service data.

 An embodiment of the present invention further provides an access point (AP), including: an access unit, configured to connect a mobile terminal in a local area network to a fixed local area network; and a service processing unit, configured to access the access unit And performing data connection control between the accessed mobile terminal or the data service between the mobile terminal and the fixed terminal in the local area network, and forwarding the data service data.

 The embodiment of the present invention further provides a local area network system, including a fixed local area network, and the system further includes: an interworking gateway provided by the foregoing embodiment, and an access point.

 The technical solution provided by the embodiment of the present invention integrates the resources of the mobile network and the fixed network in the local area network, and on the other hand, constructs a brand new interworking gateway to perform the mobile voice service in the local area network or the inter-talk service between the mobile terminal and the fixed terminal. Call connection establishment control; on the other hand, the access point in the mobile network is placed in the local area network and coexisted with the fixed local area network, and the service data transmission of the data service in the local area network is realized by the access point in the local area network.

 The services in the local area network can be transmitted within the local area network, which solves the problem that the existing intra-LAN local area service interworking needs to be accessed by the operator's access network and the core network, resulting in a long service path and complicated path processing. DRAWINGS

 In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a block diagram showing the structure of a local area network system according to an embodiment of the present invention; 2 is a flow chart showing a method of processing local area network data according to an embodiment of the present invention; FIG. 3 is a flow chart showing a method of processing local area network data according to another embodiment of the present invention; A schematic flowchart of a method for processing local area network data of an embodiment. detailed description

 BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative work are within the scope of the present invention.

 1 is a schematic structural diagram of a local area network system (which may be a corporate local area network, a government local area network, etc.) according to an embodiment of the present invention; as shown in FIG. 1, the local area network system of this embodiment includes an access point 10, a fixed local area network 20, The interworking gateway 30, the fixed-line control device 40, and the egress gateway 50, wherein the access point 10 is used to connect the mobile terminal 100 to the fixed local area network 20, and between the mobile terminal 100 and the mobile terminal 100 The data service between the fixed terminal 200 is connected to control and forward the service data. The IP voice service data between the mobile terminal 100 and the mobile terminal 100 and the fixed terminal 200 may be further forwarded according to the call connection established by the interworking gateway 30.

 In a specific implementation, a plurality of access points 10 may be included in a local area network. In this embodiment, only the local area network includes one access point 10 as an example. Further, as shown in FIG. 1, the access point 10 of the present embodiment includes an access unit 11 for accessing the mobile terminal 100 to the fixed local area network 20, and a service processing unit 12 for accessing the mobile terminal 100. The data service between the mobile terminal 100 and the fixed terminal 200 is connected to establish control and forward data service data. The IP voice service data between the mobile terminal 100, the mobile terminal 100, and the fixed terminal 200 may be forwarded according to the call connection established by the interworking gateway 30. The connection control of the data service between the mobile terminal 100 and the mobile terminal 100 and the fixed terminal 200 by the service processing unit 12 may include: signaling interaction, tunnel establishment, and mobile terminal IP address allocation. When the IP address is allocated to the mobile terminal, the access point can obtain the address of the same address segment as the fixed terminal from the address management server in the local area network, so as to realize the unification of the address of the mobile terminal and the fixed terminal, and the mobile terminal After the addressing of the fixed terminal is unified, the transmission of the data of the local area network and the management of the address are more convenient.

The fixed local area network 20 includes: a network cable for transmitting data in a traditional fixed local area network, and used for A router that performs data routing and forwarding, a switch that is used to secure terminal access, and the like. In this embodiment, the fixed local area network 20 is further configured to serve as a channel between the access point 10 and the interworking gateway 30, and as the data service data of the local area network and the IP voice service data together with the access point 10. Transmission channel.

 In this embodiment, the access point 10 is uplinked to the fixed local area network 20, and the fixed local area network 20 is used as a communication channel between the access point 10 and the mobile core network device (the interworking gateway 30 in this embodiment), which can reduce the network established by the operator. Investment costs. In addition, since the access point in the mobile network can utilize the fixed local area network 20 as a data transmission channel, connection establishment control and service data transmission between the mobile terminal 100 in the local area network, the mobile terminal 100 and the fixed terminal 200 can be performed. It is completely implemented inside the LAN, and does not need to pass through the carrier's core network. On the one hand, it reduces the bandwidth and resources occupied by the internal data service of the LAN. On the other hand, it reduces the data service cost that needs to be paid for using LAN communication. On the other hand, the security of data transmission within the LAN is improved.

 The interworking gateway 30 is configured to perform call connection establishment control or call connection establishment control and forward the mobile voice service between the mobile terminal 100 in the local area network, the inter-talk service between the mobile terminal 100 and the fixed terminal 200. The service data, and the mobility management of the mobile terminal in the local area network; further, as shown in FIG. 1, the interworking gateway 30 of the embodiment includes a voice processing unit 31 and a mobility management unit 32:

 The voice processing unit 31 is configured to perform call connection establishment control on a mobile voice service between the mobile terminal 100 in the local area network, and an inter-call service between the mobile terminal 100 and the fixed terminal 200 in the local area network. Or make a call connection to establish control and forward business data.

 The voice processing unit 31 may further include: a mobile voice processing unit and an interworking processing unit. The mobile voice processing unit is configured to perform call connection establishment control on the mobile voice service in the local area network, or perform call connection establishment control and forward the mobile voice service data; the interworking processing unit is used for The inter-talk service between the mobile terminal 100 and the fixed terminal 200 performs call connection establishment control, or performs call connection establishment control and forwards inter-phono service data.

In a specific implementation, the mobile voice service and/or the inter-talk service may be an IP voice service or a CS voice service. When it is an IP voice service, the voice processing unit 31 performs a mobile voice service (which may be referred to as an IP mobile voice service) between the mobile terminals 100 in the local area network, the mobile terminal 100, and a fixed terminal in the local area network. 200 inter-voice service (which can be called IP inter-phony service), call connection establishment control can be performed, and IP voice service service data can be accessed by the access point. 10 cooperates with a fixed local area network, and transmits between mobile terminals and between mobile terminals and fixed terminals. When it is a CS voice service, the voice processing unit 31 performs a mobile voice service (which may be referred to as a CS mobile voice service) between the mobile terminals 100 in the local area network, the mobile terminal 100, and a fixed terminal in the local area network. 200 inter-voice service (which can be called CS inter-voice service), perform call connection establishment control and forward CS voice service data.

 In a specific implementation, the interworking processing unit may use an intercommunication command between the existing fixed voice control center and the mobile core network to perform interworking of the connection channel of the inter-voice service.

 The mobility management unit 32 is configured to perform mobility management on the mobile terminal in the local area network. The fixed-line control device 40 is configured to perform call connection establishment control on a fixed voice service in the local area network, or perform call connection establishment control and forward service data. In a specific implementation, the fixed-line control device 40 can be an IP subscriber exchange (IP PBX), which can provide IP voice service control and can also provide normal voice service control. This functional module is prior art content and will not be described here.

 The egress gateway 50 is connected to the interworking gateway 30, the fixed-line control device 40, and the external network, respectively, for performing address translation, routing and forwarding of voice service data and data service data between the pair of local area networks and the external network. And security monitoring processing. In a specific implementation, the egress gateway may be an egress router for connecting a local area network to a local area network and a public network. This functional module is also known in the prior art and will not be described here.

 In a specific implementation, the fixed-line control device 40 and the egress gateway 50 may be integrated into the interworking gateway 30 as a unit module to form a brand-new local area network gateway, where the curing control device may be implemented by a fixed voice processing unit. The egress gateway can be implemented by the first gateway unit. Therefore, on the basis of the local area network gateway, communication between the mobile terminal and the mobile terminal, communication between the mobile terminal and the fixed terminal, and communication between the fixed terminal and the fixed terminal are realized completely within the local area network, and when the device in the local area network needs to When the external network exchanges data, the data exchanged between the internal and external networks can directly perform connection establishment control, route forwarding, security detection and the like through the LAN gateway, which can further accelerate the data transmission efficiency and simplify the LAN network architecture.

The local area network system of the embodiment integrates the resources of the mobile network and the fixed network within the local area network, and establishes a call connection connection between the mobile voice service in the local area network and the inter-call voice service between the mobile terminal and the fixed terminal by constructing a brand new interworking gateway. Control and forward business data, put the access points in the mobile network into the local area network and coexist with the fixed local area network, the number of all mobile terminals in the local area network The transmission of service data according to the service and/or IP voice service is done through an access point in the local area network. In this way, through the construction of a new interworking gateway and an access point placed in the local area network, the service between the mobile terminal and the fixed terminal in the local area network can be transmitted within the local area network, and the services of the mobile terminal and the fixed terminal in the prior art local area network are solved. Interworking needs to be through the operator's access network and core network, resulting in long service path and complex path processing. As the service is implemented inside the LAN, the communication cost of the LAN and the data security of the LAN are greatly reduced.

 When the IP address is allocated to the mobile terminal, the access point can obtain the address of the same address segment as the fixed terminal from the address management server in the local area network, so as to realize the unification of the address of the mobile terminal and the fixed terminal, the mobile terminal and the mobile terminal After the addressing of the fixed terminal is unified, it is more convenient to transfer the data of the local area network and manage the address.

 In the prior art, the operator needs to specifically establish a channel from the access point to the core network for the mobile local area network, and the embodiment of the present invention uses the fixed local area network as the channel of the access point and the core network, which can greatly reduce the network construction cost of the operator. .

 In the prior art, the mobile local area network needs to be controlled and managed by the operator, so that the local area network user (such as an enterprise) cannot properly allocate and flexibly manage the local area network. In this embodiment, the local area network is completely controlled by the local area network user, and the local area network user can Configure and manage the network according to your needs.

 As described above, the local area network system of the embodiment of the present invention integrates the resources of the mobile network and the fixed network within the local area network, and constructs a brand new interworking gateway for the mobile voice service in the local area network and the inter-call service between the mobile terminal and the fixed terminal. The call connection establishes control and forwarding service data, and the access point in the mobile network is placed in the local area network and coexists with the fixed local area network. All data services in the local area network and service data transmission of the IP voice service are implemented by the access point in the local area network. In this way, the new interworking gateway and the access point in the local area network can realize the transmission of the service between the mobile terminal and the fixed terminal in the local area network within the local area network. The local area network system architecture based on the embodiment of the present invention is provided by the embodiment of the present invention. A method of processing LAN data.

 Taking the processing of the interworking gateway as an example, a method for processing local area network data includes: receiving a call request, where the call request includes at least a mobile voice call request sent between mobile terminals in a local area network, and the mobile terminal in the local area network and the One of the inter-phone call requests sent between fixed terminals in the local area network;

 Performing call connection establishment control according to the received call request;

Or performing call connection establishment control and forwarding the voice call service according to the received call request Data.

 Taking the processing of the access point as an example, another method for processing local area network data includes: receiving data service data or IP sent between mobile terminals in the local area network, mobile terminals in the local area network, and fixed terminals in the local area network. Voice service data;

 Transmitting the data service data or IP voice service data to the receiver terminal device.

 The following is an example of a method for processing local area network data by using an interworking gateway (which may also be a LAN gateway including an interworking gateway, a fixed network control device, and an egress gateway) and/or an access point to process local area network data. For example.

 2 is a schematic flowchart of a method for processing data of a local area network according to the present invention; as shown in FIG. 2, the method of this embodiment includes:

 Step S210: The interworking gateway receives a CS voice call request sent by the mobile terminal in the local area network to the fixed terminal in the local area network;

 Step S211: The interworking gateway performs call connection establishment control and forwards voice service data according to the received CS voice call request.

 The entire call process is described in detail by taking the CS call initiated by the mobile terminal A in the local area network to the fixed terminal B as an example. The process includes the following two stages:

 1) Call setup

 The mobile terminal A in the local area network initiates the CS caller to the fixed terminal B, and all control signaling passes from the mobile terminal A to the access point to the interworking gateway, and the interworking gateway performs call connection establishment control, and forwards the control signaling to the fixed After the control signaling interaction process, the call connection between the mobile terminal A and the fixed terminal B is successfully established.

 2) Service forwarding

 After the call connection is successfully established, the mobile terminal A and the fixed terminal B can perform service forwarding. The service data between the mobile terminal A and the fixed terminal B passes through the mobile terminal A, the access point, the interworking gateway, and then reaches the fixed terminal B.

In a specific implementation, the inter-voice service between the mobile terminal and the fixed terminal may also be an IP voice service. When the IP voice service is an IP voice service, the difference between the IP voice service and the CS voice service is that the call connection establishment control can be performed only for the IP voice service. When the call connection is established, the access point is notified that the call is successfully established. Information, and then the inter-call tone service data between the mobile terminal and the fixed terminal is forwarded by the access point. FIG. 3 is a schematic flowchart of another method for processing local area network data according to the present invention; as shown in FIG. 3, the method of this embodiment includes:

 Step S310: The interworking gateway receives an IP voice call request sent by the mobile terminal in the local area network to the fixed terminal in the local area network;

 Step S311, performing call connection establishment control according to the received IP voice call request; Step S312, notifying (sending) the call setup success information to the access point;

 Step S313: The access point forwards service data of the inter-phony tone service between the mobile terminal and the fixed terminal.

 Still using the above example, when the mobile terminal A initiates an IP voice service to the fixed terminal B, the call setup process is the same as the CS voice service, and the service forwarding process is as follows:

 After the call is successfully established, the service data between the mobile terminal A and the fixed terminal B passes through the mobile terminal eight, the access point, and then reaches the fixed terminal B.

 In a specific implementation, the implementation of the call service (including the CS call and the IP call) between the mobile terminal and the mobile terminal in the local area network is similar to the inter-call service between the mobile terminal and the fixed terminal, and details are not described herein. When the fixed-line control device and the egress gateway are integrated into the interworking gateway to form a new local area network gateway, the local area network gateway can also perform call connection establishment control and service for call services (including CS calls and IP calls) between the fixed terminal and the fixed terminal. The data forwarding is similar to the inter-voice service between the mobile terminal and the fixed terminal, and is not described here.

 The method of the embodiment shown in FIG. 2 to FIG. 3, the voice service between the mobile terminal in the local area network, the voice service between the fixed terminals, and the inter-voice service between the mobile terminal and the fixed terminal through the mobile network element and the fixed network element inside the local area network. The call connection control and forwarding of the service data are implemented, and the voice service in the local area network is completely transmitted inside the local area network, which solves the problem that the service interworking between the mobile terminal and the fixed terminal in the local area network needs to be via the operator's access network and the core network, resulting in The service implementation path is long, and the path processing is complicated. As the service is implemented inside the LAN, the communication cost and the LAN data security problem in the LAN are greatly reduced.

 4 is a schematic flowchart of another method for processing data of a local area network according to the present invention. As shown in FIG. 4, the method of the access point is used as an example. The method in this embodiment includes:

 Step S410: Receive data service data sent between mobile terminals in the local area network, between the mobile terminal and the fixed terminal;

Step S411: Send the data service data to the receiver terminal device. Taking the mobile terminal A in the local area network to initiate data service to the fixed terminal B as an example, the service implementation process is described (the data service implementation between the mobile terminals is the same as the example).

 1) Signaling establishment process

 The mobile terminal A in the local area network initiates a data service request to the fixed terminal B, and all the control signaling arrives at the access point via the mobile terminal A, and performs signaling interaction, tunnel establishment, IP address allocation, etc. by the access point (access point). An address of the same address segment as the fixed terminal can be obtained from the address management server in the local area network, and allocated to the mobile terminal A). After the mobile terminal A and the access point control signaling interact, the mobile terminal A The data connection of fixed terminal B is established successfully.

 2) Service forwarding

 After the data connection is successfully established, the mobile terminal A and the fixed terminal B can forward the data service data, and the data service data between the mobile terminal A and the fixed terminal B reaches the fixed terminal B via the mobile terminal A and the access point. . Specifically, after the mobile terminal A sends the data, it is forwarded to the access point via the wireless connection between the mobile terminal A and the access point, and the data service is processed (including encapsulation and table lookup) at the access point to form a data packet. The access point sends the data packet directly to the fixed local area network. The equipment (switch, router) of the fixed local area network is forwarded according to the IP address information in the data packet, and finally forwarded to the fixed terminal B.

 In the method for processing local area network data in this embodiment, all data services in the local area network are implemented by access points in the local area network, which solves the problem that the service interworking between the mobile terminal and the fixed terminal in the prior art enterprise needs to be via the operator's access network and The core network leads to a problem that the service implementation path is long and the path processing is complicated. Since the service is implemented inside the LAN, the communication cost and the LAN data security problem in the LAN are greatly reduced. Since the IP address is allocated to the mobile terminal, the access point The address of the same address segment as the fixed terminal can be obtained from the address management server in the local area network to realize the unification of the address of the mobile terminal and the fixed terminal, and the addressing of the mobile terminal and the fixed terminal is unified, thereby facilitating the transmission of the data of the local area network. And management of the address. In the prior art, the operator needs to specifically establish an access point to the core network for the enterprise mobile local area network, and the embodiment of the present invention uses the fixed local area network as the access point and the core network channel, which can greatly reduce the network construction of the operator. cost.

When the fixed-line control device and the egress gateway are integrated into the interworking gateway to form a new local area network gateway, services (including voice service and data service) between the internal terminal of the local area network (including the mobile terminal and the fixed terminal) and the external terminal may be performed by the local area network. The gateway implements interaction with the core network of the mobile operator, and forwards signaling and service data between the internal terminal of the local area network and the external terminal. Taking the mobile terminal C in the local area network to call the external mobile terminal D as an example, the two stages of the call establishment process and the service forwarding process of the call process are described:

 1) Call setup

 The mobile terminal C in the local area network initiates a call to the external mobile terminal D, and all control signaling passes through the mobile terminal C through the access point, to the local area network gateway, to the mobile core network of the operator, and to the public wireless access to the operator. The network then arrives at the called mobile terminal. After the interaction of the control signaling, the connection between the mobile terminal C and the mobile terminal D is established successfully.

 2) Service forwarding

 After the connection is successfully established, the mobile terminal C and the mobile terminal D can forward the service data. The service data between the two terminals first passes through the mobile terminal C, the access point, and then the local area network gateway in the local area network, from the local area network gateway to the mobile operator's core network, to the operator's public wireless access network, and finally arrives at the Call mobile terminal D.

 The method of the embodiment simplifies the data transmission efficiency and simplifies the LAN network architecture by integrating the process of processing distributed in multiple devices into one device through the converged LAN gateway.

 A person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. In execution, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

 The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and the equivalent changes made by the claims of the present invention are still within the scope of the present invention.

Claims

Claim  A method for processing local area network data, comprising:  The interworking gateway receives the call request, and the call request includes: a mobile voice call request sent between the mobile terminals in the local area network, or a mutual call voice call request sent between the mobile terminal in the local area network and the fixed terminal in the local area network:  The interworking gateway performs call connection establishment control according to the received call request. 2. The method for processing local area network data according to claim 1, wherein when the call request is an IP voice call request, the performing call connection establishment control according to the received request comprises: receiving the IP voice according to Call request, call connection establishment control;  A call setup success message is sent to the access point. The method for processing local area network data according to claim 1, wherein, when the call request is a CS voice call request, the performing call connection establishment control according to the received request comprises: according to the received CS voice Call request, establish call connection;  The method further includes:  After the call connection is successfully established, the CS voice service data is forwarded. The method for processing local area network data according to any one of claims 1 to 3, wherein the call request further comprises: a fixed voice call request sent between fixed terminals in the local area network;  The performing call connection establishment control according to the received request includes:  The interworking gateway performs call connection establishment control according to the fixed voice call request. The method for processing data of a local area network according to any one of claims 1 to 3, wherein the method further comprises:  The interworking gateway performs address translation and routing forwarding on voice service data and data service data between the local area network and the external network. 6. An interworking gateway, comprising: a voice processing unit, configured to perform call connection establishment control on a voice service in a local area network, where the voice service in the local area network includes: a mobile voice service between mobile terminals in the local area network, or a mobile terminal in the local area network Inter-phonic voice service with a fixed terminal in the local area network; The interworking gateway according to claim 6, wherein the voice service is an IP voice service,  The voice processing unit includes:  a mobile voice processing unit, configured to perform call connection establishment control on an IP mobile voice service between mobile terminals in the local area network;  The interworking processing unit is configured to perform call connection establishment control on an IP inter-phony service between the mobile terminal in the local area network and a fixed terminal in the local area network. The interworking gateway according to claim 6, wherein the voice service is a CS voice service,  The voice processing unit is further configured to: forward the CS voice service data after performing call connection establishment on the voice service in the local area network;  The voice processing unit includes:  a mobile voice processing unit, configured to perform call connection establishment control on a CS mobile voice service between mobile terminals in the local area network, and forward the CS voice service data;  The interworking processing unit is configured to perform call connection establishment control on the CS inter-talk service between the mobile terminal in the local area network and the fixed terminal in the local area network, and forward the CS voice service data. The interworking gateway according to any one of claims 6 to 8, wherein the voice processing unit further comprises: The fixed voice processing unit is configured to perform call connection establishment control on the fixed voice service between the fixed terminals in the local area network, or perform call connection establishment control and forward the fixed voice service data. The interworking gateway according to any one of claims 6 to 8, further comprising: a first gateway unit, configured to perform address translation on voice service data and data service data between the local area network and an external network , routing and forwarding. 11. A method of processing local area network data, comprising:  The access point receives the data service request, where the data service request includes: a data service request sent between the mobile terminals in the local area network, or a data service request sent between the mobile terminal in the local area network and the fixed terminal in the local area network;  And the access point performs connection establishment control on the data service according to the data service request, and forwards the data service data. The method for processing local area network data according to claim 11, wherein the connection establishment control comprises: signaling interaction, tunnel establishment, and mobile terminal IP address allocation,  The mobile terminal IP address allocation includes: obtaining an address that is in the same address segment as the fixed terminal, and assigning the address to the mobile terminal. The method for processing local area network data according to claim 11 or 12, wherein the method further comprises:  Receiving, by the access point, IP voice service data sent by the mobile terminal in the local area network, and transmitting the received IP voice service data to the receiver terminal device; or  The access point receives IP voice service data sent between the mobile terminal in the local area network and the fixed terminal in the local area network, and sends the received IP voice service data to the receiver terminal device. 14. An access point, comprising:  An access unit, configured to connect a mobile terminal in a local area network to a fixed local area network; a service processing unit, configured to perform connection establishment control on a data service between the mobile terminal accessed by the access unit or a data service between the mobile terminal and a fixed terminal in the local area network, and forward the data service data . The access point according to claim 14, wherein the connection establishment control comprises: signaling interaction, tunnel establishment, and mobile terminal IP address allocation,  The service processing unit acquires an address that is in the same address segment as the fixed terminal and allocates the address to the mobile terminal. The access point according to claim 14 or 15, wherein the service processing unit is further configured to:  Forwarding IP voice service data between the mobile terminals according to the call connection established by the interworking gateway control, or  And forwarding the IP voice service data between the mobile terminal and the fixed terminal according to the call connection established by the interworking gateway control. 17. A local area network system, comprising a fixed local area network, characterized in that:  An interworking gateway according to any one of claims 6 to 10, and  An access point according to any one of claims 14 to 16.