WO2012079398A1

WO2012079398A1 - Dual-mode communication terminal and switching method thereof

Info

Publication number: WO2012079398A1
Application number: PCT/CN2011/079814
Authority: WO
Inventors: 杨定洲
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-12-15
Filing date: 2011-09-19
Publication date: 2012-06-21
Also published as: CN102065584B; CN102065584A

Abstract

Provided is a dual-mode communication terminal and a switching method thereof. The dual-mode communication terminal comprises a USB HUB unit, a first wireless module and a second wireless module, and further comprises a hardware communication interface that connects the first wireless module and the second wireless module; the first wireless module or the second wireless module further comprises a switching management module that can achieve dual-mode switch by sending switching command through the hardware communication interface, when the wireless module work needs to be switched. Compared with the prior art, the dual-mode switch is faster, with improved user experience; and the same CM software can be compatible with more communication terminals.

Description

Momo communication terminal and switching method thereof

The present invention relates to the field of mobile terminal technologies, and in particular, to a dual mode communication terminal and a switching method thereof.

With the diversification of wireless technologies, the current branch and evolution of wireless technologies are numerous. The 2G technology has basically evolved to 3G. The 3G technologies include WCDMA, CDMA2000, TD-SCDMA, WiMAX, etc. 3G is still rapidly moving to 4G. Evolution, including LTE (TDD and FDD), the entire communication evolution mode evolves from a link domain to a packet domain, from a low rate to a high rate, and multiple modes and technologies coexist and complement each other.

With the rapid development of wireless communication technology, wireless throughput has been greatly improved, and data transmission and multimedia services have become a new growth point for wireless communication. Wireless data card products have become an important supporting product form for this service. There are many wireless product technologies. Each country and operator chooses different wireless standards for their own network characteristics and service forms. The same carrier will choose two different standard networking according to its own business characteristics. A variety of wireless standards and networks, as well as different operators' business sharing and cross-strength, wireless dual-mode data card products have emerged, and operators' demand for dual-mode data card products continues to increase.

The current wireless dual-mode card product has evolved from the dual-mode single-standby to the dual-mode dual-standby product. As shown in FIG. 1, it is an existing dual-mode product architecture diagram, which includes a USB HUB unit, and the USB. The HUB unit is connected to the wireless module 1 and the wireless module 2 via USB respectively. This scheme can simultaneously detect the signal strength of two different networks at the same time, and select and switch two wireless networks according to the operator's handover policy requirements and software algorithms. The switching action and algorithm are implemented on the PC side CM (Connect Manager) software, and the PC side software is monitored in real time. Manage the software status on the data card board side. The working status of the wireless module varies according to the network status. It is very complicated. The PC software needs a very complicated query traversal and decision to be able to accurately judge the board side status, board side and The PC side software is difficult to maintain synchronization due to network status or other reasons, resulting in long switching time, slow user interface reflection, and poor user performance. At the same time, CM software is developed for specific data cards, and the software is very versatile. Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to provide a dual mode communication terminal and a switching method thereof for realizing switching faster.

In order to achieve the above object, the present invention provides a dual mode communication terminal, where the dual mode communication terminal includes a USB HUB unit, a first wireless module, and a second wireless module, and further includes connecting the first wireless module and the second a hardware communication interface of the wireless module;

The first wireless module or the second wireless module further includes a switching management module, configured to send a switching command through the hardware communication interface to implement dual mode switching when the wireless module needs to be switched.

Further, the first wireless module and the second wireless module are configured to perform wireless connection and communication, and further include a first communication/control module and a second communication/control module, respectively;

The first communication/control module and the second communication/control module are configured to communicate between the first wireless module and the second wireless module, for implementing parsing and execution of communication commands.

Further, the USB HUB unit is configured to connect to the PC through the USB connector, expand the USB signal of the PC, and expand the two USB signals to connect the first wireless module and the second wireless module respectively.

Further, the hardware communication interface is a USB, GPIO or UART interface.

Further, the switching management module is disposed on the first wireless module or the second wireless module, and implements a board side switching management wireless module function.

Further, the handover management module is specifically configured to periodically query the first wireless module and the first The status of the two wireless modules analyzes the network status of the two wireless modules, performs real-time judgment according to the switching policy, sends the module switching command to the wireless module, and controls the wireless module state switching through the processing of the communication/control module.

In addition, the present invention also provides a dual mode communication terminal switching method, where the first wireless module and the second wireless module of the dual mode communication terminal have a hardware communication interface, and when the wireless module needs to be switched, the first wireless module And the switching management module of the second wireless module sends a switching command by using the hardware communication interface to implement dual mode switching.

Further, the USB HUB unit of the dual-mode communication terminal is connected to the PC through a USB connector, and expands the USB signal of the PC, and expands two USB signals to respectively connect the first wireless module and the second wireless module.

Further, the hardware communication interface between the first wireless module and the second wireless module is a USB, GPIO or UART interface.

Further, the switching management module disposed on the first wireless module or the second wireless module periodically queries the states of the first wireless module and the second wireless module, analyzes network states of the two wireless modules, and performs real-time judgment according to the switching policy. The module switching command is sent to the wireless module, and the wireless module state switching is controlled by the processing of the communication/control module.

Advantageous Effects of the Invention: Compared with the prior art, the dual mode switching is faster and the user experience is better; the same CM software can be compatible with more traffic terminals. DRAWINGS

1 is a schematic structural diagram of a dual mode communication terminal in the prior art;

2 is a schematic structural diagram of a data card of a dual mode communication terminal according to an embodiment of the present invention;

FIG. 3 is a schematic flow chart of a method for switching a dual mode communication terminal according to an embodiment of the present invention. detailed description

The present invention proposes a new dual-mode communication product hardware architecture, two processors of dual-mode products An interactive communication module is added, and a dual-mode switching mechanism is implemented based on the hardware architecture and the board-side software to solve the problem that the switching time of the dual-mode card product is too long and the user experience is poor. At the same time, through the board-side dual-mode switching mechanism, the CM software development and compatibility issues of the device are improved, which is beneficial to the multi-operator customization of the product.

The hardware architecture for implementing the method is improved on the existing hardware architecture. The existing hardware architecture extends the USB interface of the PC through the USB HUB unit, and the two USB interfaces are respectively connected to connect two USB wireless modules, and the status of the two modules. Control is controlled by the CM software on the PC. By improving the traditional hardware scheme, the invention adds hardware and software communication interfaces in two wireless modules to realize direct communication and control of the two modules. By adopting the hardware architecture of the dual-mode product of the invention, the board side directly performs dual-mode switching and management through the board side software cooperation, thereby achieving efficient and real-time purposes.

The technical solutions of the present invention are described in detail below with reference to the accompanying drawings and specific embodiments. In this embodiment, the communication terminal is described by taking a data card as an example.

For the traditional dual-mode card products, the difficulty of synchronization between the PC software and the board-side software caused by the long switching time and the poor versatility of the CM software, the interaction of the two wireless modules is added through the hardware and the dual-mode switching function module is placed. The board side is separated from the PC software control, and the switching control is completely completed by the board side software, which well solves the problems faced by the traditional dual mode card products.

Please refer to FIG. 2, which is a schematic structural diagram of a data card of a dual mode communication terminal according to the present invention, which includes a USB HUB unit, a first wireless module, a second wireless module, a first communication/control module, and a second communication/control module. Switch management module.

The first wireless module and the second wireless module are used for wireless connection and communication. The PC is connected to the USB HUB unit through the USB connector, and the USB HUB unit expands the USB signal of the PC, and the two USB signals are extended to connect the first wireless module and the second wireless module respectively, and two USB devices are mapped on the PC side. The PC software can control the two wireless modules separately. In order to implement the board side dual mode switching function, a hardware communication interface is added between the first wireless module and the second wireless module, and the communication interface may be USB, general purpose input/output according to different platforms used. Output, GPIO), Universal Asynchronous Receiver/Transmitter (UART) and other interfaces.

The first communication/control module and the second communication/control module ensure communication between the two wireless modules, on the one hand, the communication function, and on the other hand, the analysis and execution functions of the communication commands.

The switching management module is disposed on a module with strong processing capability in two wireless modules to implement a board-side switching management module function. In FIG. 2, the second wireless module functions as a primary communication module, and the switching management module is in a second wireless. Implemented in the module, the switching management module implements dual-mode switching. The switching management module periodically queries the states of the first wireless module and the second wireless module, analyzes the state of the two networks, performs real-time judgment according to the switching policy, sends the module switching command to the wireless module, and controls the wireless through the processing of the communication/control module. Module state switching.

Referring to FIG. 3, it is a schematic flowchart of a method for switching a dual-mode communication terminal according to the present invention, which includes the following steps:

S301: data card initialization;

The data card is initialized, and the switching management module is also initialized together. The first wireless module and the second wireless module establish a communication interface, and a corresponding communication/control module is developed inside each module, and the communication/control module is responsible for direct communication handshake between the two wireless modules. , information transfer and module action control.

S302: The switching management module queries the status of the wireless module.

Select one module with strong processing capability as the main module among the two wireless modules, implement the switching management module of dual-mode switching and control on the main module, and control the two wireless modules through the communication control interfaces of the two wireless modules. Scheduling, dual mode switching. The second wireless module functions as a main module, implements a dual-mode switching algorithm and a status query in the switching management module of the second wireless module, and queries and manages the working states of the two wireless modules through two communication/control modules, according to the The strategy requires dual mode switching. After the data card is powered on, the hardware and software initialization of the two wireless modules are completed first, and then the initialization of the switching management module is started, and the switching management module is started. Double-mode switching management, status query of two wireless modules through the communication/control module. If a switching action is required, the switching management module issues a command through the communication/control management control module, and the communication/control module receives the command and controls the corresponding module. The switching action is performed, and the flow returns to the switching control module for the next query operation.

S303: determining whether switching is required; if switching is required, proceeding to step S304, if no switching is required, returning to step S302;

S304: The switching management module sends a switching command to the corresponding communication/control module.

S305: The communication/control module performs a corresponding switching action.

The CM software monitors and manages the application scenarios according to user requirements. The dual-mode working state and the dual-mode switching threshold pass through the NV and PC query interfaces. The CM software on the PC side can adjust and modify the working state and switching strategy of the dual-mode card, and the specific switching work is handed to the board side software implementation. The CM software issues commands to the board side through common commands. If the user wants to work in a certain application scenario, the board side receives the command and passes it to the board side switching management module, and switches the management module to perform corresponding actions. All switching is completely realized by the board-side switching management module and is completely automatic. It does not require CM software management, but the CM software can also adjust and modify the policy. This ensures the real-time performance of dual-mode switching. Users can also choose according to their own situation. Different applications ensure the flexibility of dual-mode products.

The invention proposes a set of hardware and software solutions for the dual-mode card product, and transfers the switching software of the dual-mode product to the board side for development and control by the traditional PC software control, and separates the PC side CM software and the board side software, the PC side The CM software is responsible for data card setup and status indication and statistics. The data card software is responsible for network interaction, access, and multi-network selection and switching. This method can solve two problems well: 1. The problem of slow dual-mode switching and poor user experience; 2. The problem that CM software can't be universal, the same CM software can have more data cards.

Because the method and the technology of the present invention have greater versatility, the WiMAX, CDMA, GSM, PHS, WCDMA, TD-SCDMA, and LTE wireless duals providing wireless access functions are provided. Mold products, specially designed to dual-mode dual standby switching function, can use this method to solve many problems caused by PC switching. It should be understood that those skilled in the art to which the present invention pertains may make equivalent changes or substitutions in accordance with the technical solutions of the present invention, and all such changes or substitutions should be The scope of protection required.

There are a variety of embodiments of the present invention, and various modifications and changes can be made thereto in accordance with the present invention without departing from the spirit and scope of the invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles are intended to be included within the scope of the present invention.

Claims

Claim

A dual-mode communication terminal, comprising a USB HUB unit, a first wireless module, and a second wireless module, wherein the dual-mode communication terminal further comprises a connection between the first wireless module and the second wireless module Hardware communication interface;

2. The dual mode communication terminal according to claim 1, wherein the first wireless module and the second wireless module are configured to perform wireless connection and communication, and further comprise a first communication/control module and a second, respectively. Communication/control module;

3. The dual-mode communication terminal according to claim 1, wherein the USB HUB unit is configured to connect to the PC through the USB connector, expand the USB signal of the PC, and expand the two USB signals to connect to the first. A wireless module and a second wireless module.

The dual mode communication terminal according to claim 1, wherein the hardware communication interface is a USB, a general-purpose input/output GPIO or a universal asynchronous connection 41/transmission UART interface.

The dual-mode communication terminal according to claim 1, wherein the switching management module is disposed on the first wireless module or the second wireless module to implement a board-side switching management wireless module function.

The dual-mode communication terminal according to claim 1, wherein the handover management module is configured to periodically query states of the first wireless module and the second wireless module, and analyze network states of the two wireless modules. Real-time judgment is performed according to the switching policy, and the module switching command is sent to the wireless module, and the wireless module state switching is controlled by the processing of the communication/control module.

A method for switching a dual mode communication terminal, characterized in that: A wireless communication interface is provided between the wireless module and the second wireless module. When the switching of the wireless module is required, the switching management module of the first wireless module and the second wireless module sends a switching command to implement dual mode switching by using the hardware communication interface. .

8. The method according to claim 7, wherein the USB HUB unit of the dual mode communication terminal is connected to the PC through a USB connector, and the USB signal of the PC is extended, and the two USB signals are respectively connected. A wireless module and a second wireless module.

9. The method of claim 7, wherein the hardware communication interface between the first wireless module and the second wireless module is a USB, GPIO or UART interface.

The method according to claim 7, wherein the switching management module disposed on the first wireless module or the second wireless module periodically queries the states of the first wireless module and the second wireless module, and analyzes two states. The network status of the wireless module is determined in real time according to the switching policy, and the module switching command is sent to the wireless module, and the wireless module state switching is controlled by the processing of the communication/control module.