CN102573005B

CN102573005B - Radio data service access method, system and device

Info

Publication number: CN102573005B
Application number: CN201010597554.6A
Authority: CN
Inventors: 赵建; 王映民; 赵瑾波; 秦飞
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2010-12-20
Filing date: 2010-12-20
Publication date: 2015-02-18
Anticipated expiration: 2030-12-20
Also published as: CN102573005A; WO2012083815A1

Abstract

The invention discloses a radio data service access method, system and device. The method comprises a radio frequency module and a radio link control (RLC) protocol layer processing module, wherein the radio frequency module is used for receiving radio data service request initiated by a data service terminal and then performing service data and service signaling interaction with the data service terminal through a radio air interface; and the RLC layer processing module is used for performing service data and service signaling interaction with an external network for providing radio data service through a network interface and enabling the data service to access to the external network. Through access nodes, the data service terminal can simply and conveniently access the external network with low cost, and the large-quantity high-speed data transmission requirement of radio data service can be met.

Description

Radio data service access method, system and device

Technical field

The present invention relates to wireless communication technology field, espespecially a kind of radio data service access method, system and device.

Background technology

In recent years, universal along with mobile Internet (Mobile Internet) and smart mobile phone, Mobile data traffic demand rapidly increases.Mobile data services flow increases to increase by 1 speed every year according to statistics, it is predicted that the demand of mobile data services flow in 2014 will reach 40 times of 2009.Mobile data services rapidly increase, and cause carrier network can't bear the heavy load, and also have impact on conventional telecommunications level business, and operator needs, for the data service rapidly increased year by year, to drop into more operation cost simultaneously.

Current development of Mobile Internet technology application drives broadband wireless data business develop rapidly, particularly wireless data service to focus mostly in the hot zones such as metropolitan environments or indoor environment, is presented as nomadism scene.The design of traditional cellular mobile communication is subject to the restriction of the carrier class service design of high-speed mobile, seamless switching and high qos requirement, general more applicable for low speed data, when carrying hot zones and being in the high-speed data service of static or nomadic environment, then there is efficiency of transmission low, realize high in cost of production drawback, the access of the wireless data service of a large amount of high speed data transfer that is difficult to satisfy the demand and transmission demand.

At present in order to meet the access demand of wireless data service access, mobile operator generally adopts the following two kinds solution:

Scheme one: adopt the WLAN (wireless local area network) (Wireless Local Area Network, WLAN) based on unauthorized frequency range to realize wireless data service access.

Adopt the wlan system of unauthorized frequency range, also Wireless Fidelity (Wireless Fidelity is claimed, WiFi) system, carry out hot zones covering, realize the shunting that access the wireless data service of hot zones, it mainly adopts wlan system and 3G system loose coupling realization in the core net certification of 3G system and charging.When existing employing WiFi realizes wireless data service accessing Internet (Internet), cellular network or dedicated network, user terminal is by wireless local network connecting point (Access Point, AP), wireless local net access controller (Access Controller, AC) accesses in above-mentioned network.

WiFi is adopted to carry out hot zones data service access shunting, although meet the demand of wireless data service access to a certain extent, but due to WiFi employing is unauthorized industrial scientific medical (Industrial Scientific Medical, ISM) frequency range, link-quality can not be guaranteed; Adopt this access way, may disturb with various equipment such as personal WiFi, microwave ovens, simultaneously because its working frequency range is unauthorized frequency range, multiple operator is when the same area networking, if do not have the good coordinating and unifying to plan, also can disturb each other, affect data traffic quality, causing poor user experience;

What adopt due to WiFi and cellular network is different standards systems, poor with existing cellular technology amalgamation, the network of the selection access usually needing user manual, be difficult to the business that realizes taking over seamlessly between two Access Networks, and mobile operator needs to dispose 2 cover networks simultaneously, corresponding terminal also needs to adopt dual-mode terminal, increases network operation and subscriber equipment cost input.

Scheme two: adopt Home eNodeB to realize wireless data service access.

Short according to indoor environment coverage distance, the feature that number of users is few, reduce the capacity requirement at single station and merit emissivity and the Home eNodeB (Femto) that arranges, it is the another kind shunting scheme to the access of hot zones wireless data service, when adopting Home eNodeB to realize wireless data service access, subscriber equipment (User Equipment, UE) by Home eNodeB (Homee Node B, HeNB), femto gateway (Homee Node BGateway, HeNB GW), because Home eNodeB will meet the access needs of normal mobile terminal, its framework inherits substantially system configuration and the protocol stack structure of the base station in cellular network, also be more applicable for low speed data, when carrying hot zones and being in the high-speed data service of static or nomadic environment, then there is efficiency of transmission low, realize high in cost of production drawback, be difficult to satisfy the demand the access of wireless data service of a large amount of high speed data transfer and transmission demand.

Summary of the invention

The embodiment of the present invention provides a kind of radio data service access method, system and device, there is wireless data service access way cannot meet a large amount of high speed data transfer demand of wireless data service in order to solve in prior art, efficiency of transmission is low, realize the high problem of complicated cost.

A kind of access node, comprising: radio-frequency module and radio link control rlc layer processing module;

Radio-frequency module, after accepting wireless data service request that data service terminal initiates, by radio open and data service terminal carrying out service data and traffic signaling mutual;

Described rlc layer processing module, for carrying out business datum by network interface and the external network that provides wireless data service serve and traffic signaling is mutual, accesses external network by described data service terminal.

A kind of data service terminal, comprising:

Radio-frequency module, is connected for setting up wireless link with described access node, and to the wireless data service access request that described access node is initiated, by described access node access external network; And carry out business datum by radio open and access node and traffic signaling mutual.

A kind of wireless data service connecting system, comprising: access node and data service terminal;

Described access node, after accepting wireless data service access request that data service terminal initiates, by radio open and data service terminal carrying out service data and traffic signaling mutual; And carry out business datum by network interface and the external network that provides wireless data service serve and traffic signaling is mutual, realize described data service terminal to access external network;

Described data service terminal, is connected for setting up wireless link with described access node, and to the wireless data service access request that described access node is initiated, by described access node access external network; And carry out business datum by radio open and access node and traffic signaling mutual.

A kind of access node gateway, comprising:

Interface module, for receiving data-signal and/or the signaling-information of access node encapsulation transmission;

Modular converter, carries out format conversion for the data-signal that sends the access node that receives and/or signaling-information, is converted to the data format that cellular network interface can identify.

A kind of radio data service access method, comprising:

Access node accepts data service terminal and self sets up the wireless data service access request initiated after wireless link is connected;

By radio open and data service terminal carrying out service data and traffic signaling mutual, carry out business datum by network interface and described external network and traffic signaling is mutual, realize described data service terminal to access external network.

Beneficial effect of the present invention is as follows:

Due to cell mobile communication systems traditional in prior art mainly towards be high-speed mobile, the carrier class service design of seamless switching, be applicable to the transmission of the low speed data with high mobility, when the high-speed data of the wireless data service of its carrying large discharge, there is efficiency of transmission on the low side, realize some drawbacks such as high cost, and adopt WiFi and Home eNodeB well can not solve this difficult problem, simultaneously the present inventor notices: be generally fixing based on wireless data service user or very low speed moves, less demanding to mobility; And wireless data service is mainly IP-based Internet business, more single to the requirement of QoS, and well below the requirement of carrier class business to QoS.In order to solve this difficult problem, the solution of the present invention is after the data service request accepting mobile terminal initiation, the business datum of the data reception data service terminal that the radio-frequency module comprised by an access node is sent by radio open and traffic signaling, and be sent to external network by after the data encapsulation of reception by data network interface by its rlc layer processing module.

Above-mentioned implementation only needs to adopt some basic radio frequencies to send and rlc layer processing capacity, and simple transfer of data efficiently can be realized based on the key technology of LTE physical layer, MAC layer, meet access demand that is indoor and hot zones wireless data service by the simple network architecture.

This implementation simplifies connecting system and corresponding access node apparatus framework, effectively reduce wireless data service access cost drop into, the demand that can make operator at low cost for the user increased provides a large amount of wireless data services to access, solves the system architecture complexity of wireless data service access existence in prior art, access process is numerous and diverse, efficiency of transmission is low, realize the high difficult problem of cost.

This implementation is improved on the basis of existing LTE system protocol frame, and make itself and existing cellular network have better compatibility, be convenient to take over seamlessly, Consumer's Experience is better.

Accompanying drawing explanation

Fig. 1 is the structural representation of wireless data service connecting system in the embodiment of the present invention;

Fig. 2 is the protocol stack structure schematic diagram that in the embodiment of the present invention one, access node adopts;

Fig. 3 is the structural representation of access node in the embodiment of the present invention one;

Fig. 4 is the structural representation of data service terminal in the embodiment of the present invention one;

Fig. 5 is the protocol stack structure schematic diagram that in the embodiment of the present invention two, access node adopts;

Fig. 6 is the structural representation of access node in the embodiment of the present invention two;

Fig. 7 is the structural representation of access node gateway in the embodiment of the present invention two;

Fig. 8 is the structural representation of base station in the embodiment of the present invention three;

Fig. 9 is the structural representation of mobile terminal in the embodiment of the present invention three;

Figure 10 is the flow chart of radio data service access method in the embodiment of the present invention four;

Figure 11 is the flow chart of radio data service access method in the embodiment of the present invention five;

Figure 12 is the flow chart of radio data service access method in the embodiment of the present invention six;

Figure 13 is the flow chart that in the embodiment of the present invention seven, data service terminal access state switches.

Embodiment

Be generally fixing according to the data service customers of the hot zones such as indoor environment and metropolitan environments or relative low speeds moves, to the less demanding feature of mobility, and data service is mainly IP-based the Internet (Internet) business, also more single to the requirement of service quality (QoS), well below the real-time business of carrier-class to the requirement of QoS.Based on the These characteristics of data service access, the embodiment of the present invention provides a kind of wireless data service connecting system, undergo technological transformation based on existing cellular mobile communication technology, make it meet Hypomobility, low QoS, low-cost wireless data service access demand, the wireless data service being applicable to high-speed data service that is static or that herd lantern border accesses.This system configuration as shown in Figure 1, comprising: access node (Access Node, AN) 10 and some data service terminals 20.

Access node 10, for accept data service terminal 20 initiate wireless data service access request after, carry out business datum by radio open and data service terminal 20 and traffic signaling mutual; And carry out business datum and traffic signaling alternately by network interface and the external network that provides wireless data service serve, realize data service terminal 20 to access external network.Wherein, external network comprises cellular network, dedicated network and the Internet (Internet) network etc.Radio open be specially adopt similar to 3GPP agreement, with 3GPP agreement eat dishes without rice or wine there is compatible wireless air interface.

Data service terminal 20, is connected for setting up wireless link with access node 10, and to the wireless data service access request that access node 10 is initiated, accesses external network by access node 10; And carry out business datum by radio open and access node 10 and traffic signaling mutual.Data service terminal can comprise personal computer (PC), handheld terminal, home electronics, mobile terminal etc.

Preferably, above-mentioned access node 10, also for: establish a communications link with external network, and broadcast the access configuration information of external network, specifically comprise:

When external network is cellular network, after establishing a communications link with cellular network, obtain cellular network and issue access configuration information, and broadcast the access configuration information of the cellular network got.

External network be IP-based Internet and dedicated network time, detect self the signal strength signal intensity of each frequency in the environment, broadcast according to the access configuration information of the signal strength signal intensity configuring external network detected.

Preferably, above-mentioned data service terminal 20, also for: search access node 10 synchronizing signal, set up synchronous with access node 10; And obtain the access configuration information of the external network that access node 10 is broadcasted, set up wireless link with access node 10 and be connected.

Preferably, wireless data service connecting system as shown in Figure 1 also comprises access node gateway (AccessNode Gateway, AN-GW) 30.Optionally, above-mentioned access node 10 can be established a communications link by access node gateway 30 and external network.

Preferably, when external network is cellular network, above-mentioned access node 10 is established a communications link by access node gateway 30 and external network.Access node gateway 30, for receiving business datum and/or the traffic signaling of access node encapsulation transmission, being converted to the data format that cellular network interface can identify, sending to cellular network.

That is, in the system shown in Fig. 1, data service terminal directly can access external network by access node, also can pass through access node, through access node gateway accessing external network.

Realize well merging and level and smooth switching to access with existing cellular network, said system is improved on the basis of original cellular network access technology, access node adopts and eats dishes without rice or wine and data terminal interactive information, adopt S1 interface and the external network interactive information of IP agreement or simplification, and keep compatible on the Key Technologies Design such as physical layer, MAC layer with cellular network.

Embodiment one:

In the wireless data service connecting system that the embodiment of the present invention one provides, data service terminal 20 directly accesses external network by access node 10.This access way is generally more suitable for data service terminal accesses Internet network and dedicated network situation by access node.When adopting this access way, the protocol stack structure that access node 10 adopts as shown in Figure 2.Wherein:

This protocol stack structure comprises physics (PHY) layer, medium education (the MediaAccess Control that adopt air protocol, MAC) layer, radio link control (Radio Link Control, RLC) layer and embedding radio resource control (Radio Resource Control in the mac layer, RRC) layer, realizes wireless data service access by rlc layer.

Wherein, physical layer realizes the coding and decoding of business datum and traffic signaling, modulation /demodulation, multi-antenna transmission, the function such as link circuit self-adapting and re-transmission.

At up direction, the business datum of MAC layer and traffic signaling etc. are transferred to radio-frequency module and send by physical layer, form the packet of MAC layer after the rf signal reception that radio-frequency module receives by down direction.In order to reduce the equipment cost of access node, improve data transmission efficiency, be applicable to house data transmission, the physical layer of relatively former cellular network technologies, following simplification can be done: as reduced multi-antenna transmission pattern, configure larger measurement and feedback cycle, configure less control channel and reference symbol etc.

MAC layer mainly realizes group (the tearing open) bag of packet, scheduling, transmission and the function etc. such as re-transmission.Relative conventional cellular network technology, MAC layer can be done to simplify: the QoS simplifying original more complicated controls, two priority classes, simplifies the complexity of user scheduling algorithm and scheduling process, simplifies access control process etc.General in order to keep the compatibility with existing cellular network, MAC layer adopts the pack arrangement identical with the pack arrangement that existing LTE protocol specifies, or identical with the MAC layer that LTE protocol specifies.

Rlc layer mainly realizes packet segmentation, the functions such as cascade, confirmation and re-transmission, substantially identical with the function of the rlc layer in former cellular network technologies.

Rrc layer is one and simplifies RRC (mini-RRC) layer, is be embedded in the radio resource in MAC layer service data unit (Service Data Unit, SDU).Rrc layer realizes the control of basic wireless link and the management function of Radio Resource, and can comprise necessary network attached storage (NetworkAttached Storage, NAS) signaling process.Rrc layer in relatively former cellular network technologies, can remove as functions such as Inter-RAT switching, MBMS, greatly simplify as system information broadcast information transmit-receive, the measurement of various cell signal and report, the function such as paging.

The structure of access node as shown in Figure 3, comprising: radio-frequency module 101 and rlc layer processing module 104.Wherein:

Radio-frequency module 101, after accepting wireless data service request that data service terminal initiates, by radio open and data service terminal carrying out service data and traffic signaling mutual.

Rlc layer processing module 104, for carrying out business datum by network interface and the external network that provides wireless data service serve and traffic signaling is mutual, accesses external network by data service terminal.

Above-mentioned radio-frequency module 101, also for: after rlc layer processing module 104 and external network establish a communications link, the access configuration information of broadcast external network.

Preferably, rlc layer processing module 104, specifically for by self network interface directly and external network realizes business datum and traffic signaling is mutual; Or by self network interface, the access node gateway through arranging and external network realizes business datum and traffic signaling is mutual.

That is, what above-mentioned radio-frequency module 101 realized being connected with the radio communication of wireless data terminal with the information such as data, signaling is mutual.Rlc layer processing module 104 realizes being connected with the mutual of external network, itself and external network realizes information interaction time, adopt the data transfer mode based on IP agreement, employing IP encapsulate data bag.

Above-mentioned access node also comprises: physical channel processing module 102, and to carry out business datum and traffic signaling mutual with radio-frequency module 101, for carrying out coding and decoding, modulation /demodulation process to the business datum received and traffic signaling.

Preferably, when above-mentioned physical channel processing module 102 pairs of business datums and traffic signaling carry out encoding and decoding, modulation /demodulation process, one of following function or combination are revised to the physical layer of LTE protocol standard:

Reduce multi-antenna transmission pattern, configure larger measuring period, configure larger feedback cycle, configure less control channel and configure less reference symbol.

Above-mentioned access node also comprises: MAC layer processing module 103, and to carry out business datum and traffic signaling mutual with physical channel processing module 102, controls for carrying out access control, scheduling controlling and transmission to the business datum received and traffic signaling.General in order to keep the compatibility with existing cellular network, MAC layer processing module uses the pack arrangement identical with the pack arrangement that existing LTE protocol specifies, or identical with the MAC layer processing module that LTE protocol specifies.

Preferably, above-mentioned MAC layer processing module 103 is carrying out access control, scheduling controlling and transmission control to business datum and traffic signaling, revise one of following function or combination to the MAC layer of LTE protocol standard:

Reduced mass service QoS control procedure, the two priority classes process that simplifies, simplification user scheduling algorithm and simplification access control process.

Above-mentioned access node also comprises: be embedded in the radio resource control rrc layer processing module 105 in MAC layer processing module 103, for carrying out traffic signaling alternately with MAC layer processing module, realizes wireless spread-spectrum technology and RRM.

Preferably, above-mentioned rrc layer processing module 105, when wireless spread-spectrum technology and RRM, revises one of following function or combination to the rrc layer of LTE protocol standard:

Reduce network attached storage NAS signaling procedure, simplify the process of Stochastic accessing, simplify the process of access control, simplify system information broadcast process, simplify system information transmitting-receiving process, simplify process that cell signal measures, reduce report configuration information, reduce the paging information, removal (the Inter RadioAccess Technology that report, Inter-RAT) handoff functionality, removal multimedia broadcast multi-broadcasting business (MultimediaBroadcast Multicast Service, MBMS) function.

Access point apparatus comprises above-mentioned rlc layer processing module 104, carries out service data interaction with MAC layer processing module 103, for carrying out segmentation, cascade, confirmation, retransmission process to the business datum received.

The structure of data service terminal as shown in Figure 4, comprising: radio-frequency module 201, is connected for setting up wireless link with access node, and to the wireless data service access request that access node is initiated, accesses external network by access node; And carry out business datum by radio open and access node and traffic signaling mutual.

Above-mentioned data service terminal, also comprises: physical channel processing module 202, and to carry out business datum and traffic signaling mutual with the radio-frequency module 201 in data service terminal, for carrying out coding and decoding, modulation /demodulation process to the business datum received and traffic signaling.

When physical channel processing module in data service terminal 202 pairs of business datums and traffic signaling carry out encoding and decoding, modulation /demodulation process, one of following function or combination are revised to the physical layer of LTE protocol standard:

Preferably, above-mentioned physical channel processing module 202, also for the synchronizing signal of being searched for access node by radio-frequency module 201, sets up synchronous with access node; And obtain the access configuration information of the external network that access node is broadcasted, set up wireless link with access node and be connected.Specifically by radio-frequency module 201 search signal, identified whether to be synchronizing signal by physical channel processing module 202 and carry out respective handling.

Above-mentioned data service terminal, also comprises: MAC layer processing module 203, and to carry out business datum and traffic signaling mutual with physical channel processing module 202, controls for carrying out access control, scheduling controlling and transmission to the business datum received and traffic signaling.General in order to keep the compatibility with existing cellular network, MAC layer processing module uses the pack arrangement identical with the pack arrangement that existing LTE protocol specifies, or identical with the MAC layer processing module that LTE protocol specifies.

Preferably, above-mentioned MAC layer processing module 203 is carrying out access control, scheduling controlling and transmission control to business datum and traffic signaling, revise one of following function or combination to the MAC layer of LTE protocol standard:

Above-mentioned data service terminal, also comprises: be embedded in the rrc layer processing module 205 in MAC layer processing module, for carrying out traffic signaling alternately with MAC layer processing module 203, realizes wireless spread-spectrum technology and RRM.

Above-mentioned rrc layer processing module 205, when wireless spread-spectrum technology and RRM, revises one of following function or combination to the rrc layer of LTE protocol standard:

Reduce network attached storage NAS signaling procedure, simplify the process of Stochastic accessing, simplify the process of access control, simplify system information broadcast process, simplify system information transmitting-receiving process, simplify process that cell signal measures, reduce report configuration information, reduce report paging information, remove inter-RAT handoff functionality, remove MBMS function.

Also comprise in above-mentioned data service terminal: rlc layer processing module 204, carry out service data interaction with MAC layer processing module, for carrying out segmentation, cascade, confirmation, retransmission process to the business datum received.

Also comprise in above-mentioned data service terminal: also comprise: application layer module 206, present to user for business datum business datum carried.

Embodiment two:

The wireless data service connecting system that the embodiment of the present invention two provides, data service terminal 20 accesses external network by access node 10 and access node gateway 30.

The protocol stack structure that access node 10 adopts as shown in Figure 5.This protocol stack structure comprises physics (PHY) layer, medium education (MAC) layer, radio link control (RLC) layer and embedding radio resource control (RRC) layer in the mac layer that adopt air protocol, realizes wireless data service access by rlc layer.The concrete function of each layer is see the description of embodiment one.

This protocol stack structure also comprises: simplify S1 (Mini S1) interface, realize business datum and traffic signaling is mutual with access node gateway.

Simplification S1 interface can realize some basic functions that S1 interface in prior art can realize, comprise radio bearer management, context management, simple configuration management etc., simultaneously, eliminate some functions of the unwanted former S1 interface of wireless data service access, inner as handoff functionality, paging function, CDMA 2000 tunnelling function, positioning function, g-load equalization function etc.

Use and simplify S1 interface sends packet from the protocol encapsulation adopting the S1 interface after simplifying to select to access node gateway, by access node gateway, the packet simplifying the transmission of S1 interface is resolved and realized Data Format Transform, be converted to the packet that the former S1 interface that meets cellular network technologies can identify, make multiple access node can share an access node gateway like this.Relative to directly arranging for S1 interface in the access node, further simplify the structure of access node, having saved equipment cost input.

The structure of the access node 10 that the embodiment of the present invention two provides as shown in Figure 6, comprising: radio-frequency module 101, physical channel processing module 102, MAC layer processing module 103, rlc layer processing module 104 and the rrc layer processing module 105 be embedded in MAC layer processing module 103.

Preferably, this access node 10 also comprises interface module 106.

Interface module 106, for when external network is cellular network, encapsulates the business datum of rlc layer processing module 104 transmission, the traffic signaling of rrc layer transmission, sends to cellular network; And be transferred to rlc layer processing module 104 after the business datum that the cellular network received sends is resolved, be transferred to rrc layer processing module 105 after the traffic signaling of the cellular network transmission received is resolved.

Preferably, above-mentioned interface module 106, specifically for: realize radio bearer management, context management, and according to selected tunneling, data encapsulation is carried out to signal; Wherein, selected tunneling has carried out one of following amendment or combination to cellular network S1 interface accepted standard agreement:

Cancel handoff functionality, cancel paging function, cancel CDMA2000 (Code Division MultipleAccess 2000) tunnelling function, cancel positioning function, cancel g-load equalization function.

The structure of access node gateway 30 as shown in Figure 7, comprising: interface module 301 and modular converter 302.

Interface module 301, for receiving business datum and/or the traffic signaling of access node transmission.

Modular converter 302, carries out format conversion for the data-signal that sends the access node that receives and/or signaling-information, is converted to the data format that cellular network interface can identify, and sends to external network.

The protocol stack structure that data service terminal 20 adopts is with shown in the Fig. 2 in embodiment one, and the structure of data service terminal, with shown in the Fig. 4 in embodiment one, repeats no more herein.

The access node that above-described embodiment two provides and access node gateway are mainly applicable to wireless data service access cellular network, and for multiple access node, an access node gateway can be set to realize Data Format Transform, simplify the structure of access node further.

Embodiment three:

The wireless data service connecting system that the embodiment of the present invention three provides, by the function i ntegration of access node in the base station of existing cellular network, by the function i ntegration of data service terminal in existing mobile terminal.

The structure of the base station after integrated as shown in Figure 8, except comprising, existing base station comprises its air-interface portion: except former radio-frequency module 401, original physical layer processing module 402, former MAC layer processing module 403, former rlc layer processing module 404, former PDCP layer processing module 405, former rrc layer processing module 406, also comprises a new MAC layer processing module 407.

The function of this MAC layer processing module 407 completes identical function with the MAC layer processing module in above-described embodiment one and also can be embedded with rrc layer processing module.Difference is, this MAC layer submodule 407 is with the original MAC layer module 403 in base station and deposit, and shares original physical processing layer module 402 and rlc layer processing module 404; In addition, when the frequency of radio-frequency module is identical, shared former radio-frequency module 401 can also be selected.

Base station shown in Fig. 8, its network inter-face portion is except the former S1 interface 408 comprised that comprises original base station, former transport layer, original physical layer, also comprise a new interface module, namely S1 interface module 409 is simplified, also new physical layer and transport layer be can comprise, or physical layer and transport layer shared with former S1 interface 408.

The access of cellular network mode is realized by above-mentioned former radio-frequency module 401, original physical layer processing module 402, former MAC layer processing module 403, former rlc layer processing module 404, former PDCP layer processing module 405, former rrc layer processing module 406, former S1 interface module 408.It adopts existing cellular network technologies to realize, and meets existing LTE protocol standard, repeats no more herein.

By above-mentioned former radio-frequency module 401, original physical layer processing module 402, MAC layer processing module 407, former rlc layer processing module 404, simplify the access that S1 interface module 409 realizes wireless data service.Enable this base station meet the transmission demand of the low speed data of the mobile communication of high translational speed, high QoS and high security, also can meet the access demand of the high-speed data of the wireless data service of low translational speed, relatively low QoS and low-security.

The structure of the mobile terminal after integrated as shown in Figure 9, except comprising, existing mobile terminal comprises its air-interface portion: except former radio-frequency module 501, original physical layer processing module 502, former MAC layer processing module 503, former rlc layer processing module 504, former PDCP layer processing module 505, former rrc layer processing module 506, former application layer module 507, also comprises a new MAC layer processing module 508 and a new application layer module 509.

The function of this MAC layer processing module 508 completes identical function with the MAC layer processing module in above-described embodiment one and also can be embedded with rrc layer processing module.Difference is, this MAC layer processing module 508 is with the original MAC layer processing module 503 of mobile terminal and deposit, and shares physical channel processing module 502 and rlc layer module 504; In addition, when the frequency of radio-frequency module is identical, shared former radio-frequency module 501 can also be selected.

This application layer module 509 is for presenting the related data information of wireless data service to user.

The access of cellular network mode is realized by above-mentioned former radio-frequency module 501, original physical layer processing module 502, former MAC layer processing module 503, former rlc layer processing module 504, former PDCP layer processing module 505, former rrc layer processing module 506, former application layer module 507.It adopts existing cellular network technologies to realize, and meets existing LTE protocol standard, repeats no more herein.

The access of wireless data service is realized by above-mentioned former radio-frequency module 501, original physical layer processing module 502, MAC layer processing module 508, former rlc layer processing module 504, application layer module 509.Enable this mobile terminal meet the transmission demand of the low speed data of the mobile communication of high translational speed, high QoS and high security, also can meet the access demand of the high-speed data of the wireless data service of low translational speed, relatively low QoS and low-security.

Directly the access node in embodiment one and two can certainly be arranged in a base station as a device, the data service terminal in embodiment one and two is arranged in the terminal as a device.

The base station that above-described embodiment three provides and mobile terminal can realize the access of existing cellular network and wireless data service accesses the access demand of two kinds of patterns, because it adopts protocol stack structure based on identical design basis, there is good compatibility, be therefore convenient to mobile terminal and switch between two kinds of access modules.

That is, the access node that above-described embodiment one, two, three provides, can be arranged separately, also can merge with existing base station and arrange, as a supplementary functions of existing cellular system base station.Same, the data service terminal that above-described embodiment one, two, three provides, can be arranged separately, also can merge with existing mobile terminal and arrange, as a supplementary functions of existing mobile terminal.Due to access node can with existing cellular system base station Combined design, share physical layer and MAC layer, share rlc layer etc.; And data service terminal also can share physical layer and MAC layer with existing mobile terminal Integrated design, share rlc layer etc.; Mobile terminal can realize single mode, the design of single card substantially, thus can save cost further, meanwhile, also than being easier to the switching realizing two kinds of access modules, is conducive to business and Coordinated, improves the flexibility of application and the perceptibility of user.

Embodiment four:

The embodiment of the present invention four provides a kind of radio data service access method, and adopt wireless data service connecting system as shown in Figure 1 to realize wireless data service access, the method flow process as shown in Figure 10, comprises the steps:

Step S11: access node accepts data service terminal and self sets up the wireless data service access request initiated after wireless link is connected.

Data service terminal is by the synchronizing signal of search access node, complete synchronous with access node, then the access configuration information of the external network of access node broadcast is read, the parameter relevant according to the system access of access configuration information acquisition external network, then resides in the community of access node.Data service terminal and access node are set up after wireless link is connected, and can send out its wireless data service access request, the wireless data service access that request external network provides to access node.

Step S12: access node by radio open and data service terminal carrying out service data and traffic signaling mutual.

Realize business datum and traffic signaling by radio open between access node and data service terminal mutual, its data format meets 3GPP consensus standard or has compatibility with according to 3GPP consensus standard.

The flow process of access node and the data interaction of data service terminal carrying out service comprises:

The radio-frequency module that access node or business datum terminal are comprised by self receives business datum; Business datum is supplied in turn self comprise physical channel processing module, the process of MAC layer processing module, the process of rlc layer processing module; After business datum after process is supplied to the process of MAC layer processing module, physical channel processing module process by rlc layer processing module in turn, is supplied to described radio-frequency module and sends.

The flow process of access node and data service terminal carrying out service Signalling exchange comprises:

The radio-frequency module that access node or business datum terminal are comprised by self receives traffic signaling; Traffic signaling is supplied in turn self comprise physical channel processing module, the process of MAC layer processing module, the rrc layer processing module process be embedded in MAC layer processing module; After traffic signaling after process is supplied to the process of MAC layer processing module, physical channel processing module process by rrc layer processing module in turn, is supplied to radio-frequency module and sends.

Step S13: access node carries out business datum by network interface and external network and traffic signaling is mutual, realizes data service terminal access external network.

Data service terminal sends to the business datum of external network and traffic signaling to be transmitted to external network by network interface by access node, and receives business datum and the traffic signaling of external network by network interface, is given to data service terminal by eating dishes without rice or wine.

Embodiment five:

The radio data service access method that the embodiment of the present invention five provides, data service terminal is by access node and access node gateway accessing external network, the method is comparatively applicable to the situation that external network is cellular network, and the method flow process as shown in figure 11, comprises the steps:

Step S101: access node and external network establish a communications link.

After access node start, by connecting and communication process between access node gateway and cellular network core net.From core net, obtain the parameter information of core net configuration, when external network is cellular network, after access node and cellular network establish a communications link, obtain cellular network and issue access configuration information.Access configuration information comprises the power of distribution and frequency point information etc., completes access parameter configuration.

That is, access node receives the information such as the transmission parameter in the frequency of use of network side configuration, power and prescribed limit.

Step S102: the access configuration information of access node broadcast external network.

Access node can according to the access configuration information of periodic broadcasting external network of setting, obtain for data service terminal searching and.

Step S103: the synchronizing signal of data service terminal searching access node, completes synchronous with access node.

After business datum starting up of terminal, search for self in the environment with or without the synchronizing signal of access node, when searching synchronizing signal, and sending the access node of synchronizing signal and set up synchronous, comprise the synchronous of time and other various information.

Step S104: data service terminal obtains the access configuration information of the external network of access node broadcast, and request is set up wireless link with access node and is connected.

Business datum terminal and access node complete synchronous after, read the access configuration information of the external network of data service terminal broadcast.From access configuration information, obtain the system access parameter of external network, realize residing in the community of access node.

Step S105: data service terminal initiates wireless data service access request.

Data service terminal resides in after in the community of access node, can initiate wireless data service access request at any time.Data service terminal can trigger wireless data service access request by its application layer, initiates wireless data service Stochastic accessing.

Above-mentioned steps S103-step S105 achieves the wireless data service access request that data service terminal is initiated according to the access configuration information obtained.

Step S106: access node accepts the wireless data service access request that data service terminal is initiated.

Adopt the RRC agreement of the simplification passed through between the access node of protocol stack after simplifying and data service terminal to complete wireless link and authentication and registration, realize access node and accept the wireless data service access request that data service terminal initiates.

Step S107: access node by radio open and data service terminal carrying out service data and traffic signaling mutual.

Data service terminal and access node are set up after wireless link is connected, by access node and access node gateway accessing external network, start the business datum of wireless data service and the transport communication of traffic signaling, specifically according to 3GPP agreement or with 3GPP agreement, there is compatible agreement and realized by radio open.

Step S108: access node carry out business datum by network interface and external network and traffic signaling mutual.

Access node by business datum mutual between network interface forwarding data service terminal and external network and traffic signaling, thus achieves data service terminal access external network by access node and access node gateway.

Above-mentioned steps S106-step S108 achieves access node by data service terminal access external network.And when external network is cellular network, by access node gateway by data service terminal access external network, specifically comprise:

The interface module that access node comprises, by after business datum and/or traffic signaling encapsulation, sends to access node gateway; Access node gateway, by business datum and/or traffic signaling, is converted to the data format that cellular network interface can identify, sends to cellular network.

Step S109: during the access of data service terminal log-down wireless data service, release air-link resources, disconnects the connection with external network.

After data service terminal completes data service communications demand, release air-link resources, disconnects the connection with access node, access node gateway and external network, terminates this wireless data service access procedure.

Above-described embodiment five kinds, access node adopts the mode having external network configuration parameter, i.e. the mode of operator's control.The basic transmission parameter that under which, access node uses is by external network by access node gateway, and the simplification S1 interface through access node is sent to data service terminal.This mode is comparatively applicable to the situation of data service terminal by access node access cellular network.

Embodiment six:

The radio data service access method that the embodiment of the present invention six provides, data service terminal directly accesses external network by access node, and the method flow process as shown in figure 12, comprises the steps:

Step S201: access node detect self the signal strength signal intensity of each frequency in the environment.

External network be IP-based Internet and dedicated network time, after access node start, establish a communications link with external network, detect self the signal strength signal intensity of each frequency in the environment.

Step S202: according to the access configuration information of the signal strength signal intensity configuring external network detected.

Power and frequency point information etc. is selected to complete the configuration of access configuration information voluntarily according to the signal strength signal intensity detected.That is access node configures the information such as the transmission parameter in the frequency of use, power and prescribed limit voluntarily, and general access node selects the various parameters in access configuration information according to testing result in the permissible range of sounding interference as far as possible.

Step S203: the access configuration information of access node broadcast external network.

Step S204: the synchronizing signal of data service terminal searching access node, completes synchronous with access node.

Step S205: data service terminal obtains the access configuration information of the external network of access node broadcast, and request is set up wireless link with access node and is connected.

Step S206: the wireless data service access request that data service terminal is initiated.

Above-mentioned steps S204-step S206 achieves the wireless data service access request that data service terminal is initiated according to the access configuration information obtained.

Step S207: access node accepts the wireless data service access request that data service terminal is initiated.

Step S208: access node by radio open and data service terminal carrying out service data and traffic signaling mutual.

Data service terminal and access node are set up after wireless link is connected, external network is accessed by access node, start the business datum of wireless data service and the transport communication of traffic signaling, specifically according to 3GPP agreement or with 3GPP agreement, there is compatible agreement and realized by radio open.

Step S209: access node carries out business datum by network interface and external network and traffic signaling is mutual, by data service terminal access external network.

Access node by business datum mutual between network interface forwarding data service terminal and external network and traffic signaling, thus achieves data service terminal access external network by access node.

Above-mentioned steps S207-step S209 achieves access node by data service terminal access external network.And when external network is cellular network, by access node gateway by data service terminal access external network,

Step S210: during the access of data service terminal log-down wireless data service, release air-link resources, disconnects the connection with external network.

Above-described embodiment six access node adopts the mode of user's configuration parameter voluntarily, by detecting ambient signal situation, configure voluntarily and select the transmission parameter etc. in frequency used, power and prescribed limit, by the restriction of configuration of operator, this mode is comparatively applicable to the scene of data service terminal by the direct accessing Internet network of access node and dedicated network.

Embodiment seven:

The radio data service access method that the embodiment of the present invention seven provides, realize data service terminal cellular network mode access and by access node carry out wireless data service access access taking over seamlessly of external network two kinds of access modules.

That is, the data service terminal shown in Fig. 1 can use cellular network mode to access external network.When using cellular network mode access external network, when own service message transmission rate drops to the rate-valve value being less than setting, the synchronizing signal of the access node in search surrounding environment; Set up wireless link according to the synchronizing signal searched and access node to be connected, realize switching to from use cellular network mode access external network accessing external network by access node 10.

The flow process of this data service terminal access state changing method as shown in figure 13, comprises the steps:

Step S301: business datum service terminal uses cellular network mode access external network.

This data service terminal is supported cellular network mode access and carries out wireless data service access by access node to access external network two kinds of mode of operations.

Step S302: the message transmission rate of the wireless data service of monitor data service terminal.

When there are other cellular network subscriber in surrounding environment, when especially user is more, usually can affect the message transmission rate of the wireless data service adopting cellular network mode access.

Step S303: whether service data transmission rate is less than the rate-valve value of setting.

If so, step S304 is performed; Otherwise return and continue to perform step S302.

Rate-valve value, according to the requirement of wireless data service to transmission rate, rule of thumb sets.Generally should be able to ensure the normal data transfer of wireless data service, avoid longer time delay.

Step S304: the synchronizing signal of the access node in data service terminal searching surrounding environment.

When service data transmission rate drop to the rate-valve value being less than setting time, how the synchronizing signal of the access node in data service terminal searching surrounding environment, detect the presence or absence access node of environment Friday and signal strength condition.

Step S305: set up wireless link according to the synchronizing signal searched and access node and be connected.

When finding that there is signal strength signal intensity and meeting the access node of wireless data service data transfer demands, realize wireless data service access by the access node detected.

Concrete access procedure is see the associated description of embodiment four, five, six.

Step S306: wireless data service is switched to from use cellular network mode access external network and accesses external network by access node.

Data service terminal realizes after wireless data service gets involved, by the transfer of data of the original wireless data service realized by cellular network mode, transferring to and being transmitted by access node by access node.Strange case becomes wireless data service to access the conversion accessing at cellular network mode and accessed by access node between two kinds of patterns.

Step S307: the release of data service terminal was connected the link circuit resource taken originally with cellular network.

This terminal discharges the link of cellular network and the connection of channel resource that originally took, realizes taking over seamlessly of two kinds of wireless data service access modules.

Above-mentioned wireless data service connecting system, method and relevant device that the embodiment of the present invention provides, by improving the cellular network protocols stack of original LTE protocol, and retain the basic function of original protocol stack as far as possible, meet equipment moving speed, QoS and security requirement lower, but need to transmit the access demand of the wireless data service access of a large amount of high-speed data, solve prior art and cannot meet the difficult problem that wireless data service access demand increases day by day.

After the data service request accepting mobile terminal initiation, the business datum of the data reception data service terminal that the radio-frequency module comprised by an access node is sent by radio open and traffic signaling, and be sent to external network by after the data encapsulation of reception by data network interface by its rlc layer processing module.Only need to adopt some basic radio frequencies to send and rlc layer processing capacity, and simple transfer of data efficiently can be realized based on the key technology of LTE physical layer, MAC layer, meet access demand that is indoor and hot zones wireless data service by the simple network architecture, it is simple, convenient to realize.

This implementation simplifies connecting system and corresponding access node apparatus framework, effectively reduce wireless data service access cost drop into, the demand that can make operator at low cost for the user increased provides a large amount of wireless data services to access, effectively reduce the cost overhead of data service, solve the system architecture complexity of wireless data service access existence in prior art, access process is numerous and diverse, efficiency of transmission is low, realize the high difficult problem of cost.

This implementation is improved on the basis of existing LTE system protocol frame, reuse the bottom key technologies such as cellular mobile communication physical layer, adopt identical with corresponding cellular system at radio-frequency module, physical layer, MAC layer, rlc layer etc. or keep compatible protocol stack structure design; Due to cellular network based on same standards system, make itself and existing cellular network have better compatibility, be convenient to take over seamlessly, higher network integration degree can be reached, improve system effectiveness and Consumer's Experience effect.Existing cellular network technologies, more complicated in system architecture and protocol stack design, realize cost very high, which is by simplifying the framework of cellular network, protocol stack design and flow scheme design, data terminal user is made to access cellular mobile network, dedicated network or Internet network fast, decrease the complexity of operation and data processing, and possess the amalgamation good with cell mobile communication systems.

Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims

1. an access node, is characterized in that, comprising: radio-frequency module and radio link control rlc layer processing module;

Described rlc layer processing module, for carrying out business datum by network interface and the external network that provides wireless data service serve and traffic signaling is mutual, accesses external network by described data service terminal;

Physical channel processing module, carries out business datum with described radio-frequency module and traffic signaling is mutual, for carrying out coding and decoding, modulation /demodulation process to the business datum received and traffic signaling;

Media access control MAC layer processing module, carries out business datum with described physical channel processing module and traffic signaling is mutual, controls for carrying out access control, scheduling controlling and transmission to the business datum received and traffic signaling.

2. access node as claimed in claim 1, it is characterized in that, described rlc layer processing module, specifically for directly realizing business datum with described external network by self network interface and traffic signaling is mutual, or by self network interface, the access node gateway through arranging and external network realizes business datum and traffic signaling is mutual.

3. access node as claimed in claim 1, is characterized in that, when described physical channel processing module carries out encoding and decoding, modulation /demodulation process to business datum and traffic signaling, revises one of following function or combination to the physical layer of LTE protocol standard:

4. access node as claimed in claim 1, is characterized in that, described MAC layer processing module adopts the identical pack arrangement specified with existing LTE protocol.

5. access node as claimed in claim 1, is characterized in that, described MAC layer processing module, when carrying out access control, scheduling controlling and transmission to business datum and traffic signaling and controlling, revises one of following function or combination to the MAC layer of LTE protocol standard:

6. access node as claimed in claim 1, is characterized in that, also comprise:

Being embedded in the radio resource control rrc layer processing module in MAC layer processing module, for carrying out traffic signaling alternately with described MAC layer processing module, realizing wireless spread-spectrum technology and RRM.

7. access node as claimed in claim 6, is characterized in that, described rrc layer processing module, when wireless spread-spectrum technology and RRM, revises one of following function or combination to the rrc layer of LTE protocol standard:

Reduce network attached storage NAS signaling procedure, simplify the process of Stochastic accessing, simplify the process of access control, simplify system information broadcast process, simplify system information transmitting-receiving process, simplify process that cell signal measures, reduce report configuration information, reduce report paging information, remove inter-RAT handoff functionality, remove multimedia broadcast multi-broadcasting business MBMS function.

8. access node as claimed in claim 6, is characterized in that described rlc layer processing module carries out service data interaction with described MAC layer processing module, for carrying out segmentation, cascade, confirmation, retransmission process to the business datum received.

9. access node as claimed in claim 8, is characterized in that, also comprise:

Interface module, for when external network is cellular network, encapsulates the traffic signaling that the business datum of described rlc layer processing module transmission, described rrc layer send, sends to cellular network; And be transferred to described rlc layer processing module after the business datum that the cellular network received sends is resolved, be transferred to described rrc layer processing module after the traffic signaling of the cellular network transmission received is resolved.

10. access node as claimed in claim 9, is characterized in that, described interface module, specifically for: realize radio bearer management, context management, and according to selected tunneling, data encapsulation is carried out to signal; Described selected tunneling has carried out one of following amendment or combination to cellular network S1 interface accepted standard agreement:

Cancel handoff functionality, cancel paging function, cancel CDMA2000 tunnelling function, cancel positioning function, cancel g-load equalization function.

11. access nodes as claimed in claim 1, is characterized in that, described radio-frequency module, also for:

After described rlc layer processing module and external network establish a communications link, the access configuration information of broadcast external network.

12. as arbitrary in claim 1-11 as described in access node, it is characterized in that, described access point apparatus is arranged in the base station of beehive network system, shares physical channel processing module and rlc layer processing module with described base station.

13. 1 kinds of data service terminals, is characterized in that, comprising:

Radio-frequency module, is connected for setting up wireless link with access node, and to the wireless data service access request that described access node is initiated, by described access node access external network; And carry out business datum by radio open and access node and traffic signaling mutual;

14. data service terminals as claimed in claim 13, is characterized in that, when described physical channel processing module carries out encoding and decoding, modulation /demodulation process to business datum and traffic signaling, revise one of following function or combination to the physical layer of LTE protocol standard:

15. data service terminals as claimed in claim 13, is characterized in that, described physical channel processing module, also for:

Searched for the synchronizing signal of described access node by radio-frequency module, set up synchronous with described access node;

Obtain the access configuration information of the external network of described access node broadcast, set up wireless link with described access node and be connected.

16. data service terminals as claimed in claim 13, is characterized in that, described MAC layer processing module adopts the identical pack arrangement specified with existing LTE protocol.

17. data service terminals as claimed in claim 13, it is characterized in that, described MAC layer processing module, when carrying out access control, scheduling controlling and transmission to business datum and traffic signaling and controlling, one of following function or combination are revised to the MAC layer of LTE protocol standard:

18. data service terminals as claimed in claim 13, is characterized in that, also comprise:

19. data service terminals as claimed in claim 18, is characterized in that, described rrc layer processing module, when wireless spread-spectrum technology and RRM, revises one of following function or combination to the rrc layer of LTE protocol standard:

20. data service terminals as claimed in claim 18, is characterized in that, also comprise:

Radio link control rlc layer processing module, carries out service data interaction with described MAC layer processing module, for carrying out segmentation, cascade, confirmation, retransmission process to the business datum received.

21. data service terminals as claimed in claim 20, is characterized in that, also comprise:

Application layer module, presents to user for the business datum described business datum carried.

22. as arbitrary in claim 13-21 as described in data service terminal, it is characterized in that, described data service terminal is arranged on and is applicable in the mobile terminal of cellular network, shares physical channel processing module and rlc layer processing module with mobile terminal.

23. 1 kinds of wireless data service connecting systems, is characterized in that, comprising: access node and data service terminal;

Described data service terminal, is connected for setting up wireless link with described access node, and to the wireless data service access request that described access node is initiated, by described access node access external network; And carry out business datum by radio open and access node and traffic signaling mutual;

Described access node, specifically comprises:

Radio-frequency module, after accepting wireless data service request that data service terminal initiates, by radio open and data service terminal carrying out service data and traffic signaling mutual; And establish a communications link in rlc layer processing module and external network, the access configuration information of broadcast external network;

Media access control MAC layer processing module, carries out business datum with described physical channel processing module and traffic signaling is mutual, controls for carrying out access control, scheduling controlling and transmission to the business datum received and traffic signaling;

Being embedded in the radio resource control rrc layer processing module in MAC layer processing module, for carrying out traffic signaling alternately with described MAC layer processing module, realizing wireless spread-spectrum technology and RRM;

Described rlc layer processing module, carries out service data interaction with described MAC layer processing module, also for carrying out segmentation, cascade, confirmation, retransmission process to the business datum received.

24. systems as claimed in claim 23, is characterized in that, described access node, also for:

Establish a communications link with external network, and broadcast the access configuration information of external network, specifically comprise:

When described external network is cellular network, after establishing a communications link with described cellular network, obtain described cellular network and issue access configuration information, and broadcast the access configuration information of the described cellular network got; Or

Described external network be IP-based Internet and dedicated network time, detect self the signal strength signal intensity of each frequency in the environment, configure described access configuration information according to the signal strength signal intensity detected and broadcast.

25. systems as claimed in claim 24, it is characterized in that, described access node, also comprises:

26. systems as claimed in claim 24, is characterized in that, described data service terminal, also for:

Search for the synchronizing signal of described access node, set up synchronous with described access node;

27. systems as claimed in claim 26, it is characterized in that, described data service terminal, specifically comprises:

28. systems as claimed in claim 27, it is characterized in that, described data service terminal, also comprises:

Described rlc layer processing module, carries out service data interaction with described MAC layer processing module, also for carrying out segmentation, cascade, confirmation, retransmission process to the business datum received;

29. systems as claimed in claim 27, is characterized in that, described physical channel processing module, also for:

Searched for the synchronizing signal of described access node by described radio-frequency module, set up synchronous with described access node;

30. systems as claimed in claim 24, is characterized in that, also comprise: access node gateway;

Described access node is established a communications link by described access node gateway and external network;

Access node gateway, for when described external network is cellular network, receives business datum and/or the traffic signaling of access node encapsulation transmission, is converted to the data format that cellular network interface can identify, sends to cellular network.

31. systems as claimed in claim 30, it is characterized in that, described access node gateway, comprising:

Interface module, for receiving business datum and/or the traffic signaling of access node transmission;

32. as arbitrary in claim 24-31 as described in system, it is characterized in that, described data service terminal also for: use cellular network mode access external network; And

When using cellular network mode access external network, when own service message transmission rate drops to the rate-valve value being less than setting, the synchronizing signal of the access node in search surrounding environment;

Set up wireless link according to the synchronizing signal searched and access node to be connected, realize switching to by described access node access external network from use cellular network mode access external network.

33. 1 kinds of radio data service access methods, is characterized in that, comprising:

By radio open and data service terminal carrying out service data and traffic signaling mutual, carry out business datum by network interface and external network and traffic signaling is mutual, realize described data service terminal to access external network;

When the message transmission rate of the wireless data service using the described business datum terminal of cellular network mode access external network drops to the rate-valve value being less than setting, the synchronizing signal of the access node in described data service terminal searching surrounding environment;

34. methods as claimed in claim 33, is characterized in that, before accepting the wireless data service access request of data service terminal initiation, also comprise:

Described access node and external network establish a communications link, and broadcast the access configuration information of external network;

Described access node accepts the wireless data service access request that data service terminal is initiated according to the described access configuration information obtained.

35. methods as claimed in claim 34, it is characterized in that, described access node and external network establish a communications link, and broadcast the access configuration information of external network, specifically comprise:

When described external network is cellular network, after described access node and described cellular network establish a communications link, obtain described cellular network and issue access configuration information, and broadcast the access configuration information of the described cellular network got; Or

Described external network be IP-based Internet and dedicated network time, described access node detect self the signal strength signal intensity of each frequency in the environment, configure described access configuration information according to the signal strength signal intensity detected and broadcast.

36. methods as claimed in claim 34, is characterized in that, the wireless data service access request that described data service terminal is initiated according to the described access configuration information obtained, and specifically comprise:

Described in described data service terminal searching, the synchronizing signal of access node, sets up synchronous with described access node;

Described data service terminal obtains the access configuration information of the external network of described access node broadcast, and request is set up wireless link with described access node and is connected.

37. methods as claimed in claim 33, it is characterized in that, the flow process of described access node and the data interaction of data service terminal carrying out service comprises:

The radio-frequency module that described access node or business datum terminal are comprised by self receives business datum;

Described business datum is supplied in turn self comprise physical channel processing module, the process of MAC layer processing module, the process of rlc layer processing module;

After business datum after process is supplied to the process of MAC layer processing module, physical channel processing module process by described rlc layer processing module in turn, is supplied to described radio-frequency module and sends.

38. methods as claimed in claim 33, it is characterized in that, the flow process of described access node and data service terminal carrying out service Signalling exchange comprises:

The radio-frequency module that described access node or business datum terminal are comprised by self receives traffic signaling;

Described traffic signaling is supplied in turn self comprise physical channel processing module, the process of MAC layer processing module, the radio resource control rrc layer processing module process be embedded in MAC layer processing module;

After traffic signaling after process is supplied to the process of MAC layer processing module, physical channel processing module process by described rrc layer processing module in turn, is supplied to described radio-frequency module and sends.

39. methods as claimed in claim 33, is characterized in that, when described external network is cellular network, by described data service terminal access external network, specifically comprise: by access node gateway by described data service terminal access external network.

40. methods as claimed in claim 39, is characterized in that, the described access node gateway that passes through, by described data service terminal access external network, specifically comprises:

The interface module that described access node comprises, by after business datum and/or traffic signaling encapsulation, sends to described access node gateway;

Described access node gateway, by described business datum and/or traffic signaling, is converted to the data format that cellular network interface can identify, sends to cellular network.