WO2014059816A1 - Communication method, system and multimode terminal - Google Patents

Communication method, system and multimode terminal Download PDF

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Publication number
WO2014059816A1
WO2014059816A1 PCT/CN2013/081176 CN2013081176W WO2014059816A1 WO 2014059816 A1 WO2014059816 A1 WO 2014059816A1 CN 2013081176 W CN2013081176 W CN 2013081176W WO 2014059816 A1 WO2014059816 A1 WO 2014059816A1
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WO
WIPO (PCT)
Prior art keywords
terminal
base station
mode
standard
multimode terminal
Prior art date
Application number
PCT/CN2013/081176
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French (fr)
Chinese (zh)
Inventor
张金玺
朱晓明
莫知伟
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to RU2015116655A priority Critical patent/RU2646865C2/en
Publication of WO2014059816A1 publication Critical patent/WO2014059816A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/15Setup of multiple wireless link connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/06Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the present invention relates to the field of communications, and in particular to a communication method, system, and multimode terminal.
  • LTE Long Term Evolution
  • WLAN Wireless Local Area Network
  • terminal technology is bound to move towards a multi-modal, intelligent trend to meet the requirements of users roaming and making full use of various heterogeneous network resources, and the terminal has cognitive ability ( Cognitive Radio), which supports reconfigurable Dynamic Spectrum Access, and the gradual evolution of access in heterogeneous wireless network environments is a trend.
  • cognitive Radio Cognitive Radio
  • Embodiments of the present invention provide a communication method, a system, and a multimode terminal, so as to at least solve the related art, a single mode terminal of different standards and a base station cannot directly communicate, and a single mode terminal can be implemented through a multimode terminal. Communication with a base station, but existing multimode terminals are generally bulky and costly.
  • a communication method including: establishing, by a multimode terminal, a connection between a terminal supporting a first mode and a second base station, wherein the multimode terminal is based on a software definition radio (Software Definition) Radio, abbreviated as SDR), and supports the first system and the second system; the terminal supporting the first system communicates with the second system base station through the multimode terminal and the connection.
  • a software definition radio Software Definition Radio
  • establishing, by the multimode terminal, the connection between the terminal supporting the first mode and the second standard base station comprises: establishing a connection between the multimode terminal and the second standard base station; and switching the multimode terminal from the second mode to the first mode;
  • the mode terminal monitors the authentication request from the terminal supporting the first system in the first mode, and establishes a connection between the terminal supporting the first system and the second standard base station in response to the authentication request.
  • the terminal supporting the first mode communicates with the second standard base station through the multimode terminal and the connection includes: when the multimode terminal operates in the first mode, the data from the second standard base station is sent according to the protocol requirement of the first standard For the terminal supporting the first mode; when the multimode terminal operates in the second mode, the data from the terminal supporting the first system is transmitted to the second base station according to the protocol requirement of the second standard.
  • the data from the second-standard base station is sent to the support according to the protocol requirements of the first-standard system.
  • the terminal of the first mode includes: when the multimode terminal works in the first mode, according to the protocol requirements of the first standard and the identifiers of the terminals supporting the first standard, the data from the second standard base station is separately sent to each support first. Standard terminal.
  • the method further includes: the multimode terminal receiving the request from the terminal supporting the first standard in the first mode, And when the multimode terminal is in the second mode, the request is forwarded to the second standard base station according to the protocol requirement of the second system, wherein the request is for requesting transmission of data or voice communication.
  • the soft handover of the multimode terminal from the second mode to the first mode comprises: the multimode terminal is softly switched from the second mode to the first mode by the baseband chip of the multimode terminal.
  • the method further includes: when the multimode terminal works in the first mode, receiving the terminal from the terminal supporting the first mode The connection announcement is released, and the connection between the terminal supporting the first standard and the second base station is released according to the notification.
  • a multimode terminal including: an establishing module, configured to establish a connection between a terminal supporting a first standard and a second standard base station, where the multimode terminal is based on an SDR, and Supporting the first system and the second system; the communication module is configured to communicate with the terminal supporting the first system and the second base station through the connection.
  • the establishing module comprises: a first establishing unit configured to establish a connection with the second standard base station; a switching unit configured to softly switch from the second mode to the first mode; and a second establishing unit set to be in the first mode
  • the authentication request from the terminal supporting the first system is monitored, and the connection between the terminal supporting the first system and the second standard base station is established in response to the authentication request.
  • the communication module includes: a first sending unit, configured to: when the multimode terminal operates in the first mode, send data from the second standard base station to the terminal supporting the first standard according to the protocol requirement of the first standard;
  • the second sending unit is configured to, when the multimode terminal operates in the second mode, transmit data from the terminal supporting the first system to the second standard base station according to the protocol requirement of the second standard.
  • a communication system including: a terminal supporting a first mode, a multimode terminal, and a second mode base station, wherein the multimode terminal is a multimode terminal of any of the foregoing
  • the terminal supporting the first system includes: an establishing module, configured to establish a connection between the terminal supporting the first standard and the second standard base station through the multimode terminal; the communication module is configured to pass through the multimode terminal and connect with the second standard base station Communicate.
  • the SDR-based multi-mode terminal can implement communication between one or more terminals and the base station (the terminal and the base station support different systems), and solve the communication problem between the terminal and the base station in different standards, for example, can be implemented.
  • FIG. 2 is a structural block diagram of a multimode terminal according to an embodiment of the present invention
  • FIG. 3 is a structural block diagram of a communication system according to an embodiment of the present invention.
  • 4 is a schematic diagram of a communication method of an SDR multimode terminal according to a preferred embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of an SDR multimode terminal baseband chip according to a preferred embodiment of the present invention.
  • Step S102 Establish, by the multimode terminal, a connection between the terminal supporting the first standard and the second standard base station, where the multimode terminal is based on the SDR, and supports the first system and the second system.
  • Step S104 The terminal supporting the first mode communicates with the second standard base station through the multimode terminal and the connection.
  • a single mode terminal of different standards and a base station cannot communicate directly, and a single mode terminal can communicate with a base station through a multimode terminal, but the existing multimode terminal is generally bulky and costly.
  • the SDR-based multi-mode terminal can implement communication between one or more terminals and the base station (the terminal and the base station support different systems), and solve the communication problem between the terminal and the base station in different standards, for example, Communication between one or more WLAN terminals and an LTE base station can be achieved.
  • the multimode terminal is implemented based on SDR, which reduces the area realized by the multimode terminal and reduces the hardware resource overhead, thereby reducing the cost of communication between the terminal and the base station in different standards.
  • step S102 includes: establishing a connection between the multimode terminal and the second standard base station; soft handover of the multimode terminal from the second mode to the first mode; monitoring the first mode of the multimode terminal from the first support
  • the authentication request of the terminal of the system in response to the authentication request, establishes a connection between the terminal supporting the first system and the second-standard base station. So far, the connection between the terminal supporting the first system and the second-standard base station is established by the SDR-based multi-mode terminal, that is, the connection between the terminal of different systems and the base station is established.
  • the above SDR-based multimode terminal can support different standards.
  • the step S104 includes: when the multimode terminal works in the first mode, the data from the second standard base station is sent to the terminal supporting the first standard according to the protocol requirement of the first standard; when the multimode terminal works in the second mode And transmitting data from the terminal supporting the first system to the second standard base station according to the protocol requirement of the second standard.
  • the terminal that communicates with the base station may be one or more.
  • the multimode terminal When multiple terminals supporting the first standard simultaneously communicate with the second standard base station, when the multimode terminal operates in the first mode Transmitting data from the second-standard base station to the terminal package supporting the first standard according to the protocol of the first standard
  • the data from the second-standard base station is separately sent to each terminal supporting the first-standard system according to the protocol requirements of the first-standard system and the identifiers of the terminals supporting the first-standard system. In the preferred embodiment, by identifying different terminals, it is ensured that data is transmitted to each terminal accurately and quickly.
  • the method before the step S104, further includes: the multimode terminal receiving the request from the terminal supporting the first system in the first mode, and when the multimode terminal is in the second mode, according to the The two-standard protocol requires that the request be forwarded to the second-standard base station, where the request is for requesting transmission of data or voice communication.
  • the soft handover of the multimode terminal from the second mode to the first mode comprises: the multimode terminal is softly switched from the second mode to the first mode by the baseband chip of the multimode terminal.
  • the baseband chip mainly implements soft handover and communication of the system through the SDR data signal processing chip therein.
  • the method further includes: the multimode terminal operates at the first In the system, the disconnection announcement from the terminal supporting the first system is received, and the connection between the terminal supporting the first standard and the second base station is released according to the notification. This will unlink in time and free up resources.
  • the embodiment of the invention further provides a multimode terminal, which can be configured to implement the above communication method. 2 is a structural block diagram of a multimode terminal according to an embodiment of the present invention. As shown in FIG. 2, the multimode terminal includes an establishing module 22 and a communication module 24. The structure is described in detail below.
  • the establishing module 22 is configured to establish a connection between the terminal supporting the first system and the second standard base station, wherein the multimode terminal is based on the SDR and supports the first system and the second system; the communication module 24 is connected to the establishing module 22 And being configured to communicate with the terminal supporting the first system and the second base station through the connection.
  • the establishing module 22 includes: a first establishing unit, configured to establish a connection with the second standard base station; a switching unit connected to the first establishing unit, configured to softly switch from the second mode to the first mode; and the second establishing unit And connecting to the switching unit, configured to monitor an authentication request from the terminal supporting the first system in the first mode, and establish a connection between the terminal supporting the first system and the second standard base station in response to the authentication request.
  • the communication module 24 includes: a first sending unit, configured to: when the multimode terminal operates in the first mode, send data from the second standard base station to the terminal supporting the first standard according to the protocol requirement of the first standard;
  • the second sending unit is configured to, when the multi-mode terminal operates in the second mode, transmit data from the terminal supporting the first system to the second-standard base station according to the protocol requirement of the second system.
  • the first sending unit is further configured to: when the multimode terminal operates in the first mode, according to the protocol requirements of the first system and Each of the identifiers supporting the first-standard terminal transmits data from the second-standard base station to each terminal supporting the first-standard system.
  • the device further includes: a first receiving module, connected to the establishing module 22, configured to receive a request from the terminal supporting the first system in the first mode; a forwarding module connected to the receiving module, configured to be in the multimode terminal In the second mode, the request is forwarded to the second standard base station according to the protocol requirement of the second system, wherein the request is for requesting transmission of data or voice communication.
  • the terminal different from the base station system can establish a communication link with the base station through the SDR multi-mode terminal, and implement the wireless Internet access function or the voice communication function on the terminal side.
  • a WLAN terminal (laptop or mobile phone) can implement a wireless Internet access function or a voice communication function on the WLAN terminal side through an SDR multimode terminal and a communication link with the LTE base station.
  • the switching unit is further configured to softly switch from the second mode to the first mode through the baseband chip of the multimode terminal.
  • the apparatus further includes: a second receiving module, configured to: when the multimode terminal operates in the first mode, receive an unlinking announcement from the terminal supporting the first mode; and release the module, and set to release the support according to the notification A connection between a standard terminal and a second standard base station.
  • the embodiment of the invention further provides a communication system, which can be configured to implement the above communication method.
  • the communication system includes a terminal 32 supporting a first system, a multimode terminal 34, and a second base station 36.
  • the structure is described in detail below.
  • the multimode terminal 34 is a multimode terminal of any one of the above embodiments;
  • the terminal 32 supporting the first system includes: an establishing module 322, configured to establish, between the terminal supporting the first standard and the second base station, by the multimode terminal
  • the communication module 324 is coupled to the setup module 322 and configured to communicate with the second base station via the connection established by the multimode terminal and the setup module 322.
  • the multi-mode terminal and the communication system described in the device embodiment correspond to the foregoing method embodiments, and the specific implementation process has been described in detail in the method embodiment, and details are not described herein again.
  • the SDR multimode terminal in the foregoing embodiment can access the base station to implement basic communication functions on the one hand; on the other hand, through different conversion interfaces of the SDR multimode terminal, different systems can be implemented.
  • the protocol conversion enables multi-level communication between terminals to achieve the purpose of communication between other terminals and the base station.
  • an SDR multimode terminal supporting WLAN and LTE can access a base station through an LTE system to implement a basic communication function.
  • the LTE system and the WLAN system can also implement a conversion interface between the LTE and the WLAN through the SDR multimode terminal. Protocol conversion, thereby achieving multi-level communication between terminals, and achieving the purpose of communication between other WLAN terminals and LTE base stations.
  • the SDR multimode terminal can also be used to implement communication between the terminal and the base station.
  • the implementation process will be described in detail below in conjunction with the preferred embodiments.
  • the WLAN terminal communicates with the LTE base station through an SDR-based multimode terminal (LTE & WLAN) as an example.
  • 4 is a schematic diagram of a communication method of an SDR multimode terminal according to a preferred embodiment of the present invention.
  • the SDR-based multimode terminal can support the LTE system and the WLAN system. Since different WLAN terminals are to implement different functions, as shown in FIG. 4, the above communication method is divided into two parts, one part is WLAN terminals 41, 42 and 44 (for example, a notebook computer) through the SDR multimode terminal 43 (for example, The modulo data card) and 46 (for example, a multimode mobile phone), the communication link with the LTE base station 47, implements the wireless Internet access function of the WLAN terminals 41, 42 and 44; the other part is the WLAN terminal 45 (for example, a multimode mobile phone).
  • the voice communication function of the WLAN terminal 45 is realized by a communication link with the LTE base station 47 by the SDR multimode terminal 46 (for example, a multimode mobile phone).
  • the first part (the implementation of the wireless Internet access function) is as follows: Step 1: The SDR multimode terminals 43 and 46 (operating in the LTE mode) establish a connection with the LTE base station 47 by cell search, random access, and the like. Step 2: After the SDR multimode terminals 43 and 46 remain connected to the LTE base station 47, when no listening service is performed in the LTE working mode, the baseband chip of the SDR multimode terminal (LTE&WLAN) is softly switched to the WLAN mode to monitor the WLAN. The link ensures that the LTE link communicates with the WLAN link normally. Step 3: The WLAN terminals 41, 42 and 44 initiate a WLAN authentication request to the SDR multimode terminals 43 and 46.
  • Step 1 The SDR multimode terminals 43 and 46 (operating in the LTE mode) establish a connection with the LTE base station 47 by cell search, random access, and the like.
  • Step 2 After the SDR multimode terminals 43 and 46 remain connected to the LTE base station 47, when no listening service is performed in the
  • the SDR multimode terminals 43 and 46 monitor the authentication request in the WLAN mode, and respond to the authentication request, and the authentication is successfully established.
  • Step 4 The WLAN terminals 41, 42 and 44 initiate data requests to the SDR multimode terminals 43 and 46. After the SDR multimode terminals 43 and 46 monitor the data request of the WLAN terminal in the WLAN mode, they respectively receive the WLAN terminals 41, 42 and The data request of 44 extracts the baseband data of the data request.
  • a data request is initiated to the LTE base station 47 according to the LTE protocol.
  • Step 5 The LTE base station 47 establishes a data path with the SDR multimode terminals 43 and 46 by interacting with the SDR multimode terminals 43 and 46 operating in the LTE mode in response to the data request.
  • Step 6 When the SDR multimode terminals 43 and 46 are working in the WLAN mode, the data sent by the LTE base station 47 is sent to the WLAN terminals 41 and 42 according to the WLAN protocol requirements according to different identification codes of the WLAN terminals 41, 42 and 44. And 44; when the SDR multimode terminals 43 and 46 are operating in the LTE mode, the data transmitted by the WLAN terminals 41, 42 and 44 is transmitted to the LTE base station 47 as required by the LTE protocol, thereby implementing the WLAN terminals 41, 42 and 44 and the LTE base station. 47 data communication.
  • Step 7 The WLAN terminals 41, 42 and 44 send an unlink notification to the SDR multimode terminals 43 and 46,
  • the SDR multimode terminals 43 and 46 receive an announcement and disconnect when operating in the WLAN mode.
  • the second part (implementing the voice communication function) has the following steps: Step 1, Step 2 and Step 3 and Step 1, Step 2 and Step 3 of the first part are not repeated here.
  • Step 4 The WLAN terminal 45 initiates a voice request to the SDR multimode terminal 46. After monitoring the voice request of the WLAN terminal 45 in the WLAN mode, the SDR multimode terminal 46 accepts the voice request initiated by the WLAN terminal 45 to extract the baseband data of the voice request. When the SDR multimode terminal 46 operates in the LTE mode, a voice request is initiated to the LTE base station 47 according to the requirements of the LTE protocol.
  • Step 5 The LTE base station 47 responds to the voice request and establishes a voice link by interacting with the SDR multimode terminal 46 operating in the LTE mode.
  • Step 6 When the SDR multimode terminal 46 is working in the WLAN mode, the voice data sent by the LTE base station 47 is sent to the WLAN terminal 45 according to the WLAN protocol requirement; when the SDR multimode terminal 46 is operating in the LTE mode, the WLAN terminal 45 is used. The transmitted voice data is sent to the LTE base station 47 as required by the LTE protocol, thereby implementing voice communication between the WLAN terminal 45 and the LTE base station 47.
  • Step 7 The WLAN terminal 45 sends a disconnection announcement to the SDR multimode terminal 46, and the SDR multimode terminal 46 receives the announcement and disconnects when operating in the WLAN mode, while interrupting the voice communication with the LTE base station 47.
  • 5 is a schematic structural diagram of an SDR multimode terminal baseband chip according to a preferred embodiment of the present invention.
  • an SDR multimode terminal supporting LTE standard and WLAN standard is taken as an example to describe the structure of a baseband chip. Multimode for LTE and WLAN. As shown in FIG.
  • the LTE/WLAN terminal baseband chip 50 in the SDR multimode terminal includes: SDR-DSP 502, ARM (Advanced RISC Machines, The RISC is an abbreviation of Reduced Instruction Set Computer 504 and an accelerator 506.
  • the SDR-DSP 502, the digital signal processing (DSP) chip defines a programming language, and implements data processing of the physical layer in the LTE mode and the WLAN mode by using the programming language. Outside the codec) and control within 1ms.
  • the ARM 504 is mainly used for processing LTE and WLAN protocols, running some physical layer processes, controlling DSP and radio frequency (RF).
  • the accelerator 506 performs the function of decoding the soft value to obtain the function of the determined binary code stream and the function of encoding the transmission signal.
  • the communication method, system, and multimode terminal provided by the foregoing embodiments of the present invention can implement communication between one or more terminals and a base station through an SDR-based multimode terminal (the terminal and the base station support different systems).
  • the communication problem between the terminal and the base station of different standards is solved, for example, communication between one or more WLAN terminals and the LTE base station can be implemented.
  • the multimode terminal is implemented based on SDR, which reduces the area realized by the multimode terminal and reduces the hardware resource overhead, thereby reducing the cost of communication between the terminal and the base station in different standards.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Disclosed are a communication method, system and multimode terminal. The method comprises: establishing a connection between a terminal supporting a first mode and a base station in a second mode via a multimode terminal, wherein the multimode terminal defines a radio SDR based on software and supports the first mode and the second mode; and the terminal supporting the first mode communicates with the base station in the second mode via the multimode terminal and the connection. By means of an SDR-based multimode terminal, the present invention can achieve the communication between one or more terminals and a base station (the terminal and the base station support different modes), solve the problem of communication between a terminal and a base station which are in different modes, for example, can achieve communication between one or more WLAN terminals and an LTE base station. Moreover, the multimode terminal is achieved based on the SDR, the area of the multimode terminal is reduced, and the hardware resource overhead is reduced, thereby reducing the cost for communication between a terminal and a base station which are in different modes.

Description

通信方法、 系统及多模终端 技术领域 本发明涉及通信领域, 具体而言, 涉及一种通信方法、 系统及多模终端。 背景技术 随着无线通信的发展, 长期演进 (Long Term Evolution, 简称为 LTE) 作为准 4G 主流通信技术, 是未来通信的主流。 但 2G、 3G以及无线局域网 (Wireless Local Area Network, 简称为 WLAN) 等无线通信网络并不会立即消失和退出市场, 它们还将共 同并存相当长的一段时间。 无线通信技术的蓬勃发展引发了网络异构化的趋势, 各种 层出不穷的无线技术共同为用户提供了泛在、 异构的网络环境, 包括无线个域网 (如 Zigbee、蓝牙 Bluetooth)、无线局域网(如无线保真(Wireless Fidelity, 简称为 WiFi))、 无线城域网 (如全球微波互联接入 ( Worldwide Interoperability for Microwave Access, 简称为 WiMAX))、 无线移动广域网 (如 2G、 3G)、 卫星网络, 以及 Ad Hoc网络、 无线传感器网络等, 终端技术必将朝着多模化、 智能化的趋势发展才能满足用户漫游 和充分利用各种异构网络资源的要求, 终端向有认知能力 (Cognitive Radio )、 支持可 重配置的动态频谱接入 (Dynamic Spectrum Access) 从而能在异构无线网络环境下接 入的方向渐进演化已经是大势所趋。 在未来的无线通信中,运营商势必会采用 LTE来保证其覆盖范围,而用 3G、WLAN 等来分流数据业务的应用场景将越来越普遍。 这也就要求终端在许多应用场合下需要 具备多种模式的接入能力。 相关技术中, 不同制式的单模终端与基站是无法直接进行通信的, 例如, WLAN 终端与 LTE基站间无法直接进行通信, 可以通过多模终端使该单模终端与基站进行通 信, 但是现有的多模终端的体积较大, 成本较高。 发明内容 本发明实施例提供了一种通信方法、 系统及多模终端, 以至少解决相关技术中, 不同制式的单模终端与基站是无法直接进行通信的, 可以通过多模终端使单模终端与 基站进行通信, 但是现有的多模终端一般体积较大, 成本较高的问题。 根据本发明实施例的一个方面, 提供了一种通信方法, 包括: 通过多模终端建立 支持第一制式的终端与第二制式基站间的连接, 其中, 多模终端基于软件定义无线电 (Software Definition Radio, 简称为 SDR), 且支持第一制式和第二制式; 支持第一制 式的终端通过多模终端及连接与第二制式基站进行通信。 优选地, 通过多模终端建立支持第一制式的终端与第二制式基站间的连接包括: 多模终端与第二制式基站建立连接; 多模终端从第二制式软切换到第一制式; 多模终 端在第一制式下监测到来自支持第一制式的终端的认证请求, 响应认证请求, 建立支 持第一制式的终端与第二制式基站间的连接。 优选地,支持第一制式的终端通过多模终端及连接与第二制式基站进行通信包括: 多模终端工作于第一制式时, 按照第一制式的协议要求将来自第二制式基站的数据发 送给支持第一制式的终端; 多模终端工作于第二制式时, 按照第二制式的协议要求将 来自支持第一制式的终端的数据发送给第二制式基站。 优选地, 当多个支持第一制式的终端同时与第二制式基站进行通信时, 多模终端 工作于第一制式时, 按照第一制式的协议要求将来自第二制式基站的数据发送给支持 第一制式的终端包括: 多模终端工作于第一制式时, 根据第一制式的协议要求和各个 支持第一制式的终端的标识, 将来自第二制式基站的数据分别发送给各个支持第一制 式的终端。 优选地, 在支持第一制式的终端通过多模终端及连接与第二制式基站进行通信之 前, 上述方法还包括: 多模终端在第一制式下接收到来自支持第一制式的终端的请求, 并在多模终端处于第二制式时, 按照第二制式的协议要求向第二制式基站转发请求, 其中, 请求用于请求传输数据或语音通信。 优选地, 多模终端从第二制式软切换到第一制式模式包括: 多模终端通过多模终 端的基带芯片从第二制式软切换到第一制式。 优选地, 在支持第一制式的终端通过多模终端及连接与第二制式基站进行通信之 后, 上述方法还包括: 多模终端工作于第一制式时, 接收到来自支持第一制式的终端 的解除连接通告, 并根据通告解除支持第一制式的终端与第二制式基站间的连接。 根据本发明实施例的另一个方面, 提供了一种多模终端, 包括: 建立模块, 设置 为建立支持第一制式的终端与第二制式基站间的连接, 其中, 多模终端基于 SDR, 且 支持第一制式和第二制式; 通信模块, 设置为通过该连接与支持第一制式的终端以及 第二制式基站进行通信。 优选地, 建立模块包括: 第一建立单元, 设置为与第二制式基站建立连接; 切换 单元, 设置为从第二制式软切换到第一制式; 第二建立单元, 设置为在第一制式下监 测到来自支持第一制式的终端的认证请求, 响应认证请求, 建立支持第一制式的终端 与第二制式基站间的连接。 优选地, 通信模块包括: 第一发送单元, 设置为在多模终端工作于第一制式时, 按照第一制式的协议要求将来自第二制式基站的数据发送给支持第一制式的终端; 第 二发送单元, 设置为在多模终端工作于第二制式时, 按照第二制式的协议要求将来自 支持第一制式的终端的数据发送给第二制式基站。 根据本发明实施例的再一个方面, 提供了一种通信系统, 包括: 支持第一制式的 终端、 多模终端和第二制式基站, 其中, 该多模终端是上述任一种的多模终端; 支持 第一制式的终端包括: 建立模块, 设置为通过多模终端建立支持第一制式的终端与第 二制式基站间的连接; 通信模块, 设置为通过多模终端及连接与第二制式基站进行通 信。 本发明实施例通过基于 SDR 的多模终端可以实现一个或多个终端与基站间的通 信(终端与基站支持的制式不同),解决了不同制式的终端与基站间的通信问题,例如, 可以实现一个或多个 WLAN终端与 LTE基站间的通信。 并且该多模终端是基于 SDR 实现的, 减少了多模终端实现的面积, 降低了硬件资源开销, 从而降低了不同制式的 终端与基站间通信的成本。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部分, 本发 明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的不当限定。 在附图 中- 图 1是根据本发明实施例的通信方法的流程图; 图 2是根据本发明实施例的多模终端的结构框图; 图 3是根据本发明实施例的通信系统的结构框图; 图 4是根据本发明优选实施例的 SDR多模终端的通信方法的示意图; 图 5是根据本发明优选实施例的 SDR多模终端基带芯片的结构示意图。 具体实施方式 需要说明的是, 在不冲突的情况下, 本申请中的实施例及实施例中的特征可以相 互组合。 下面将参考附图并结合实施例来详细说明本发明。 本发明实施例提供了一种通信方法, 图 1是根据本发明实施例的通信方法的流程 图, 如图 1所示, 包括如下的步骤 S102至步骤 S104。 步骤 S102, 通过多模终端建立支持第一制式的终端与第二制式基站间的连接, 其 中, 多模终端基于 SDR, 且支持第一制式和第二制式。 步骤 S104, 支持第一制式的终端通过多模终端及连接与第二制式基站进行通信。 相关技术中, 不同制式的单模终端与基站是无法直接进行通信的, 可以通过多模 终端使单模终端与基站进行通信, 但是现有的多模终端一般体积较大, 成本较高。 本 发明实施例中, 通过基于 SDR 的多模终端可以实现一个或多个终端与基站间的通信 (终端与基站支持的制式不同), 解决了不同制式的终端与基站间的通信问题, 例如, 可以实现一个或多个 WLAN终端与 LTE基站间的通信。 并且该多模终端是基于 SDR 实现的, 减少了多模终端实现的面积, 降低了硬件资源开销, 从而降低了不同制式的 终端与基站间通信的成本。 在一个优选实施例中, 步骤 S102包括: 多模终端与第二制式基站建立连接; 多模 终端从第二制式软切换到第一制式; 多模终端在第一制式下监测到来自支持第一制式 的终端的认证请求, 响应认证请求, 建立支持第一制式的终端与第二制式基站间的连 接。至此, 通过基于 SDR的多模终端建立了支持第一制式的终端与第二制式基站间的 连接, 即建立了不同制式的终端与基站间的连接。 上述基于 SDR的多模终端可以支持不同的制式,当该多模终端工作于某一个制式 (当前制式) 时, 可以将其在另一种制式下接收的数据按照当前制式转换并发送, 从 而实现了不同制式的终端与基站间的通信。具体地, 步骤 S104包括: 多模终端工作于 第一制式时, 按照第一制式的协议要求将来自第二制式基站的数据发送给支持第一制 式的终端; 多模终端工作于第二制式时, 按照第二制式的协议要求将来自支持第一制 式的终端的数据发送给第二制式基站。 上述与基站进行通信的终端 (与基站支持的制式不同) 可以是一个或多个, 当多 个支持第一制式的终端同时与第二制式基站进行通信时,多模终端工作于第一制式时, 按照第一制式的协议要求将来自第二制式基站的数据发送给支持第一制式的终端包 括: 多模终端工作于第一制式时, 根据第一制式的协议要求和各个支持第一制式的终 端的标识, 将来自第二制式基站的数据分别发送给各个支持第一制式的终端。 本优选 实施例中, 通过标识区分不同的终端, 可以保证准确、 快速地将数据发送给各个终端。 在一个优选实施例中, 在步骤 S104之前, 上述方法还包括: 多模终端在第一制式 下接收到来自支持第一制式的终端的请求, 并在多模终端处于第二制式时, 按照第二 制式的协议要求向第二制式基站转发请求,其中,请求用于请求传输数据或语音通信。 本优选实施例中, 通过终端发送请求触发进行通信, 可以避免不必要的资源浪费。 优选地, 多模终端从第二制式软切换到第一制式模式包括: 多模终端通过多模终 端的基带芯片从第二制式软切换到第一制式。该基带芯片主要通过其中的 SDR数据信 号处理芯片实现制式的软切换与通信。 考虑到节约不必要的资源开销, 在一个优选实施例中, 在支持第一制式的终端通 过多模终端及连接与第二制式基站进行通信之后, 上述方法还包括: 多模终端工作于 第一制式时, 接收到来自支持第一制式的终端的解除连接通告, 并根据通告解除支持 第一制式的终端与第二制式基站间的连接。 这样可以及时解除连接, 释放资源。 本发明实施例还提供了一种多模终端,该多模终端可以设置为实现上述通信方法。 图 2是根据本发明实施例的多模终端的结构框图, 如图 2所示, 该多模终端包括建立 模块 22和通信模块 24。 下面对其结构进行详细描述。 建立模块 22, 设置为建立支持第一制式的终端与第二制式基站间的连接, 其中, 该多模终端基于 SDR, 且支持第一制式和第二制式; 通信模块 24, 连接至建立模块 22, 设置为通过该连接与支持第一制式的终端以及第二制式基站进行通信。 优选地, 建立模块 22包括: 第一建立单元, 设置为与第二制式基站建立连接; 切 换单元, 连接至第一建立单元, 设置为从第二制式软切换到第一制式; 第二建立单元, 连接至切换单元, 设置为在第一制式下监测到来自支持第一制式的终端的认证请求, 响应认证请求, 建立支持第一制式的终端与第二制式基站间的连接。 优选地,通信模块 24包括:第一发送单元,设置为在多模终端工作于第一制式时, 按照第一制式的协议要求将来自第二制式基站的数据发送给支持第一制式的终端; 第 二发送单元, 设置为在多模终端工作于第二制式时, 按照第二制式的协议要求将来自 支持第一制式的终端的数据发送给第二制式基站。 优选地, 当多个支持第一制式的终端同时与第二制式基站进行通信时, 上述第一 发送单元, 还设置为在多模终端工作于第一制式时, 根据第一制式的协议要求和各个 支持第一制式的终端的标识, 将来自第二制式基站的数据分别发送给各个支持第一制 式的终端。 上述装置还包括: 第一接收模块, 连接至建立模块 22, 设置为在第一制式下接收 到来自支持第一制式的终端的请求; 转发模块, 连接至接收模块, 设置为在多模终端 处于第二制式时, 按照第二制式的协议要求向第二制式基站转发该请求, 其中, 该请 求用于请求传输数据或语音通信。 上述实施例中, 与基站制式不同的终端通过 SDR多模终端, 可以建立与该基站间 的通信链路, 实现该终端侧的无线上网功能或语音通信功能。 例如, WLAN终端 (笔 记本电脑或者手机)通过 SDR多模终端,与 LTE基站间的通信链路,可以实现 WLAN 终端侧的无线上网功能或语音通信功能。 优选地, 切换单元还设置为通过多模终端的基带芯片从第二制式软切换到第一制 式。 优选地, 上述装置还包括: 第二接收模块, 设置为在多模终端工作于第一制式时, 接收来自支持第一制式的终端的解除连接通告; 解除模块, 设置为根据该通告解除支 持第一制式的终端与第二制式基站间的连接。 本发明实施例还提供了一种通信系统,该通信系统可以设置为实现上述通信方法。 图 3是根据本发明实施例的通信系统的结构框图, 如图 3所示, 该通信系统包括支持 第一制式的终端 32、 多模终端 34和第二制式基站 36。 下面对其结构进行详细描述。 多模终端 34是上述实施例中任一种的多模终端; 支持第一制式的终端 32包括: 建立模块 322, 设置为通过多模终端建立支持第一制式的终端与第二制式基站间的连 接; 通信模块 324, 连接至建立模块 322, 设置为通过多模终端及建立模块 322建立的 连接与第二制式基站进行通信。 需要说明的是, 装置实施例中描述的多模终端与通信系统对应于上述的方法实施 例, 其具体的实现过程在方法实施例中已经进行过详细说明, 在此不再赘述。 从以上描述可知, 上述实施例中的 SDR多模终端, 一方面可以接入基站, 实现基 本通信功能; 另一方面, 通过该 SDR多模终端的不同系统的转换接口, 可以实现不同 系统之间的协议转换, 从而实现终端间的多级通信,达到其它终端与基站通信的目的。 例如, 支持 WLAN和 LTE的 SDR多模终端, 可以通过 LTE系统接入基站, 实现基本 通信功能; 还可以通过该 SDR多模终端的 LTE系统与 WLAN系统的转换接口, 实现 LTE与 WLAN之间的协议转换, 从而实现终端间的多级通信, 达到其它 WLAN终端 与 LTE基站通信的目的。 当然, 在其它制式的情况下, 也可以采用 SDR多模终端来 实现终端与基站的通信。 为了使本发明的技术方案和实现方法更加清楚, 下面将结合优选的实施例对其实 现过程进行详细描述。 以下优选实施例中, 以 WLAN终端通过基于 SDR的多模终端 (LTE&WLAN) 与 LTE基站进行通信为例进行描述。 图 4是根据本发明优选实施例的 SDR多模终端的通信方法的示意图,本优选实施 例中, 基于 SDR的多模终端可以支持 LTE制式和 WLAN制式。 由于不同的 WLAN 终端要实现不同的功能, 如图 4所示, 上述通信方法分为两部分, 一部分是 WLAN终 端 41、 42和 44 (例如, 笔记本电脑)通过 SDR多模终端 43 (例如, 多模数据卡)和 46 (例如, 多模手机), 与 LTE基站 47间的通信链路, 实现 WLAN终端 41、 42和 44 的无线上网功能; 另一部分是 WLAN终端 45 (例如, 多模手机) 通过 SDR多模终端 46 (例如, 多模手机), 与 LTE基站 47间的通信链路, 实现 WLAN终端 45的语音通 信功能。 第一部分 (实现无线上网功能) 的步骤如下: 步骤 1 : SDR多模终端 43和 46 (工作在 LTE模式下), 通过小区搜索、 随机接入 等, 与 LTE基站 47建立连接。 步骤 2: SDR多模终端 43和 46在与 LTE基站 47保持连接之后, 在 LTE工作模 式下不进行任何监听服务时, 通过 SDR多模终端 (LTE&WLAN) 的基带芯片软切换 到 WLAN模式, 监测 WLAN链路, 保证 LTE链路与 WLAN链路正常通信。 步骤 3 : WLAN终端 41、 42和 44向 SDR多模终端 43和 46发起 WLAN认证请 求, SDR多模终端 43和 46在 WLAN模式下监测到认证请求, 响应认证请求, 认证 成功建立连接。 步骤 4: WLAN终端 41、 42和 44向 SDR多模终端 43和 46发起数据请求, SDR 多模终端 43和 46在 WLAN模式下监测到 WLAN终端的数据请求后,分别接收 WLAN 终端 41、 42和 44的数据请求, 提取数据请求的基带数据, 在 SDR多模终端 43和 46 工作在 LTE模式时, 按 LTE协议要求向 LTE基站 47发起数据请求。 步骤 5 : LTE基站 47响应数据请求, 通过与工作在 LTE模式下的 SDR多模终端 43和 46交互, 与 SDR多模终端 43和 46建立数据通路。 步骤 6: SDR多模终端 43和 46在工作于 WLAN模式时, 将 LTE基站 47发送的 数据按 WLAN协议要求, 根据 WLAN终端 41、 42和 44各自不同的识别码, 发送给 WLAN终端 41、 42和 44; SDR多模终端 43和 46在工作于 LTE模式时, 将 WLAN 终端 41、 42和 44发送的数据按 LTE协议要求发送给 LTE基站 47, 从而实现 WLAN 终端 41、 42和 44与 LTE基站 47的数据通信。 步骤 7: WLAN终端 41、 42和 44向 SDR多模终端 43和 46发送解除连接通告,TECHNICAL FIELD The present invention relates to the field of communications, and in particular to a communication method, system, and multimode terminal. BACKGROUND With the development of wireless communication, Long Term Evolution (LTE), as a quasi-4G mainstream communication technology, is the mainstream of future communication. However, wireless communication networks such as 2G, 3G, and Wireless Local Area Network (WLAN) will not disappear and exit the market immediately, and they will coexist for a long time. The rapid development of wireless communication technology has led to the trend of network isomerization. Various emerging wireless technologies provide users with a ubiquitous and heterogeneous network environment, including wireless personal area networks (such as Zigbee, Bluetooth Bluetooth) and wireless LAN. (such as Wireless Fidelity (WiFi)), wireless metropolitan area network (such as Worldwide Interoperability for Microwave Access (WiMAX)), wireless mobile wide area network (such as 2G, 3G), satellite Network, as well as Ad Hoc networks, wireless sensor networks, etc., terminal technology is bound to move towards a multi-modal, intelligent trend to meet the requirements of users roaming and making full use of various heterogeneous network resources, and the terminal has cognitive ability ( Cognitive Radio), which supports reconfigurable Dynamic Spectrum Access, and the gradual evolution of access in heterogeneous wireless network environments is a trend. In the future wireless communication, operators will inevitably adopt LTE to ensure their coverage, and application scenarios of using 3G, WLAN, etc. to divert data services will become more and more common. This also requires the terminal to have multiple modes of access in many applications. In the related art, a single-mode terminal and a base station of different standards cannot directly communicate with each other. For example, a WLAN terminal and an LTE base station cannot directly communicate with each other, and the single-mode terminal can communicate with the base station through a multi-mode terminal, but existing The multimode terminal is bulky and costly. SUMMARY OF THE INVENTION Embodiments of the present invention provide a communication method, a system, and a multimode terminal, so as to at least solve the related art, a single mode terminal of different standards and a base station cannot directly communicate, and a single mode terminal can be implemented through a multimode terminal. Communication with a base station, but existing multimode terminals are generally bulky and costly. According to an aspect of the embodiments of the present invention, a communication method is provided, including: establishing, by a multimode terminal, a connection between a terminal supporting a first mode and a second base station, wherein the multimode terminal is based on a software definition radio (Software Definition) Radio, abbreviated as SDR), and supports the first system and the second system; the terminal supporting the first system communicates with the second system base station through the multimode terminal and the connection. Preferably, establishing, by the multimode terminal, the connection between the terminal supporting the first mode and the second standard base station comprises: establishing a connection between the multimode terminal and the second standard base station; and switching the multimode terminal from the second mode to the first mode; The mode terminal monitors the authentication request from the terminal supporting the first system in the first mode, and establishes a connection between the terminal supporting the first system and the second standard base station in response to the authentication request. Preferably, the terminal supporting the first mode communicates with the second standard base station through the multimode terminal and the connection includes: when the multimode terminal operates in the first mode, the data from the second standard base station is sent according to the protocol requirement of the first standard For the terminal supporting the first mode; when the multimode terminal operates in the second mode, the data from the terminal supporting the first system is transmitted to the second base station according to the protocol requirement of the second standard. Preferably, when a plurality of terminals supporting the first system simultaneously communicate with the second-standard base station, when the multi-mode terminal operates in the first mode, the data from the second-standard base station is sent to the support according to the protocol requirements of the first-standard system. The terminal of the first mode includes: when the multimode terminal works in the first mode, according to the protocol requirements of the first standard and the identifiers of the terminals supporting the first standard, the data from the second standard base station is separately sent to each support first. Standard terminal. Preferably, before the terminal supporting the first mode communicates with the second standard base station by using the multimode terminal and the connection, the method further includes: the multimode terminal receiving the request from the terminal supporting the first standard in the first mode, And when the multimode terminal is in the second mode, the request is forwarded to the second standard base station according to the protocol requirement of the second system, wherein the request is for requesting transmission of data or voice communication. Preferably, the soft handover of the multimode terminal from the second mode to the first mode comprises: the multimode terminal is softly switched from the second mode to the first mode by the baseband chip of the multimode terminal. Preferably, after the terminal supporting the first mode communicates with the second standard base station through the multimode terminal and the connection, the method further includes: when the multimode terminal works in the first mode, receiving the terminal from the terminal supporting the first mode The connection announcement is released, and the connection between the terminal supporting the first standard and the second base station is released according to the notification. According to another aspect of the present invention, a multimode terminal is provided, including: an establishing module, configured to establish a connection between a terminal supporting a first standard and a second standard base station, where the multimode terminal is based on an SDR, and Supporting the first system and the second system; the communication module is configured to communicate with the terminal supporting the first system and the second base station through the connection. Preferably, the establishing module comprises: a first establishing unit configured to establish a connection with the second standard base station; a switching unit configured to softly switch from the second mode to the first mode; and a second establishing unit set to be in the first mode The authentication request from the terminal supporting the first system is monitored, and the connection between the terminal supporting the first system and the second standard base station is established in response to the authentication request. Preferably, the communication module includes: a first sending unit, configured to: when the multimode terminal operates in the first mode, send data from the second standard base station to the terminal supporting the first standard according to the protocol requirement of the first standard; The second sending unit is configured to, when the multimode terminal operates in the second mode, transmit data from the terminal supporting the first system to the second standard base station according to the protocol requirement of the second standard. According to still another aspect of the embodiments of the present invention, a communication system is provided, including: a terminal supporting a first mode, a multimode terminal, and a second mode base station, wherein the multimode terminal is a multimode terminal of any of the foregoing The terminal supporting the first system includes: an establishing module, configured to establish a connection between the terminal supporting the first standard and the second standard base station through the multimode terminal; the communication module is configured to pass through the multimode terminal and connect with the second standard base station Communicate. In the embodiment of the present invention, the SDR-based multi-mode terminal can implement communication between one or more terminals and the base station (the terminal and the base station support different systems), and solve the communication problem between the terminal and the base station in different standards, for example, can be implemented. Communication between one or more WLAN terminals and an LTE base station. Moreover, the multimode terminal is implemented based on SDR, which reduces the area realized by the multimode terminal and reduces the hardware resource overhead, thereby reducing the cost of communication between the terminal and the base station in different standards. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 1 is a flowchart of a communication method according to an embodiment of the present invention; FIG. 2 is a structural block diagram of a multimode terminal according to an embodiment of the present invention; and FIG. 3 is a structural block diagram of a communication system according to an embodiment of the present invention. 4 is a schematic diagram of a communication method of an SDR multimode terminal according to a preferred embodiment of the present invention; and FIG. 5 is a schematic structural diagram of an SDR multimode terminal baseband chip according to a preferred embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. The embodiment of the present invention provides a communication method. FIG. 1 is a flowchart of a communication method according to an embodiment of the present invention. As shown in FIG. 1, the following steps S102 to S104 are included. Step S102: Establish, by the multimode terminal, a connection between the terminal supporting the first standard and the second standard base station, where the multimode terminal is based on the SDR, and supports the first system and the second system. Step S104: The terminal supporting the first mode communicates with the second standard base station through the multimode terminal and the connection. In the related art, a single mode terminal of different standards and a base station cannot communicate directly, and a single mode terminal can communicate with a base station through a multimode terminal, but the existing multimode terminal is generally bulky and costly. In the embodiment of the present invention, the SDR-based multi-mode terminal can implement communication between one or more terminals and the base station (the terminal and the base station support different systems), and solve the communication problem between the terminal and the base station in different standards, for example, Communication between one or more WLAN terminals and an LTE base station can be achieved. Moreover, the multimode terminal is implemented based on SDR, which reduces the area realized by the multimode terminal and reduces the hardware resource overhead, thereby reducing the cost of communication between the terminal and the base station in different standards. In a preferred embodiment, step S102 includes: establishing a connection between the multimode terminal and the second standard base station; soft handover of the multimode terminal from the second mode to the first mode; monitoring the first mode of the multimode terminal from the first support The authentication request of the terminal of the system, in response to the authentication request, establishes a connection between the terminal supporting the first system and the second-standard base station. So far, the connection between the terminal supporting the first system and the second-standard base station is established by the SDR-based multi-mode terminal, that is, the connection between the terminal of different systems and the base station is established. The above SDR-based multimode terminal can support different standards. When the multimode terminal works in a certain system (current system), the data received in another system can be converted and transmitted according to the current standard, thereby realizing Communication between terminals of different standards and base stations. Specifically, the step S104 includes: when the multimode terminal works in the first mode, the data from the second standard base station is sent to the terminal supporting the first standard according to the protocol requirement of the first standard; when the multimode terminal works in the second mode And transmitting data from the terminal supporting the first system to the second standard base station according to the protocol requirement of the second standard. The terminal that communicates with the base station (different from the system supported by the base station) may be one or more. When multiple terminals supporting the first standard simultaneously communicate with the second standard base station, when the multimode terminal operates in the first mode Transmitting data from the second-standard base station to the terminal package supporting the first standard according to the protocol of the first standard When the multi-mode terminal works in the first mode, the data from the second-standard base station is separately sent to each terminal supporting the first-standard system according to the protocol requirements of the first-standard system and the identifiers of the terminals supporting the first-standard system. In the preferred embodiment, by identifying different terminals, it is ensured that data is transmitted to each terminal accurately and quickly. In a preferred embodiment, before the step S104, the method further includes: the multimode terminal receiving the request from the terminal supporting the first system in the first mode, and when the multimode terminal is in the second mode, according to the The two-standard protocol requires that the request be forwarded to the second-standard base station, where the request is for requesting transmission of data or voice communication. In the preferred embodiment, by sending a request to trigger communication, the unnecessary resource waste can be avoided. Preferably, the soft handover of the multimode terminal from the second mode to the first mode comprises: the multimode terminal is softly switched from the second mode to the first mode by the baseband chip of the multimode terminal. The baseband chip mainly implements soft handover and communication of the system through the SDR data signal processing chip therein. In a preferred embodiment, after the terminal supporting the first mode communicates with the second standard base station through the multimode terminal and the connection, the method further includes: the multimode terminal operates at the first In the system, the disconnection announcement from the terminal supporting the first system is received, and the connection between the terminal supporting the first standard and the second base station is released according to the notification. This will unlink in time and free up resources. The embodiment of the invention further provides a multimode terminal, which can be configured to implement the above communication method. 2 is a structural block diagram of a multimode terminal according to an embodiment of the present invention. As shown in FIG. 2, the multimode terminal includes an establishing module 22 and a communication module 24. The structure is described in detail below. The establishing module 22 is configured to establish a connection between the terminal supporting the first system and the second standard base station, wherein the multimode terminal is based on the SDR and supports the first system and the second system; the communication module 24 is connected to the establishing module 22 And being configured to communicate with the terminal supporting the first system and the second base station through the connection. Preferably, the establishing module 22 includes: a first establishing unit, configured to establish a connection with the second standard base station; a switching unit connected to the first establishing unit, configured to softly switch from the second mode to the first mode; and the second establishing unit And connecting to the switching unit, configured to monitor an authentication request from the terminal supporting the first system in the first mode, and establish a connection between the terminal supporting the first system and the second standard base station in response to the authentication request. Preferably, the communication module 24 includes: a first sending unit, configured to: when the multimode terminal operates in the first mode, send data from the second standard base station to the terminal supporting the first standard according to the protocol requirement of the first standard; The second sending unit is configured to, when the multi-mode terminal operates in the second mode, transmit data from the terminal supporting the first system to the second-standard base station according to the protocol requirement of the second system. Preferably, when a plurality of terminals supporting the first system simultaneously communicate with the second standard base station, the first sending unit is further configured to: when the multimode terminal operates in the first mode, according to the protocol requirements of the first system and Each of the identifiers supporting the first-standard terminal transmits data from the second-standard base station to each terminal supporting the first-standard system. The device further includes: a first receiving module, connected to the establishing module 22, configured to receive a request from the terminal supporting the first system in the first mode; a forwarding module connected to the receiving module, configured to be in the multimode terminal In the second mode, the request is forwarded to the second standard base station according to the protocol requirement of the second system, wherein the request is for requesting transmission of data or voice communication. In the foregoing embodiment, the terminal different from the base station system can establish a communication link with the base station through the SDR multi-mode terminal, and implement the wireless Internet access function or the voice communication function on the terminal side. For example, a WLAN terminal (laptop or mobile phone) can implement a wireless Internet access function or a voice communication function on the WLAN terminal side through an SDR multimode terminal and a communication link with the LTE base station. Preferably, the switching unit is further configured to softly switch from the second mode to the first mode through the baseband chip of the multimode terminal. Preferably, the apparatus further includes: a second receiving module, configured to: when the multimode terminal operates in the first mode, receive an unlinking announcement from the terminal supporting the first mode; and release the module, and set to release the support according to the notification A connection between a standard terminal and a second standard base station. The embodiment of the invention further provides a communication system, which can be configured to implement the above communication method. 3 is a block diagram showing the structure of a communication system according to an embodiment of the present invention. As shown in FIG. 3, the communication system includes a terminal 32 supporting a first system, a multimode terminal 34, and a second base station 36. The structure is described in detail below. The multimode terminal 34 is a multimode terminal of any one of the above embodiments; the terminal 32 supporting the first system includes: an establishing module 322, configured to establish, between the terminal supporting the first standard and the second base station, by the multimode terminal The communication module 324 is coupled to the setup module 322 and configured to communicate with the second base station via the connection established by the multimode terminal and the setup module 322. It should be noted that the multi-mode terminal and the communication system described in the device embodiment correspond to the foregoing method embodiments, and the specific implementation process has been described in detail in the method embodiment, and details are not described herein again. As can be seen from the above description, the SDR multimode terminal in the foregoing embodiment can access the base station to implement basic communication functions on the one hand; on the other hand, through different conversion interfaces of the SDR multimode terminal, different systems can be implemented. The protocol conversion enables multi-level communication between terminals to achieve the purpose of communication between other terminals and the base station. For example, an SDR multimode terminal supporting WLAN and LTE can access a base station through an LTE system to implement a basic communication function. The LTE system and the WLAN system can also implement a conversion interface between the LTE and the WLAN through the SDR multimode terminal. Protocol conversion, thereby achieving multi-level communication between terminals, and achieving the purpose of communication between other WLAN terminals and LTE base stations. Of course, in other cases, the SDR multimode terminal can also be used to implement communication between the terminal and the base station. In order to make the technical solutions and implementation methods of the present invention clearer, the implementation process will be described in detail below in conjunction with the preferred embodiments. In the following preferred embodiment, the WLAN terminal communicates with the LTE base station through an SDR-based multimode terminal (LTE & WLAN) as an example. 4 is a schematic diagram of a communication method of an SDR multimode terminal according to a preferred embodiment of the present invention. In the preferred embodiment, the SDR-based multimode terminal can support the LTE system and the WLAN system. Since different WLAN terminals are to implement different functions, as shown in FIG. 4, the above communication method is divided into two parts, one part is WLAN terminals 41, 42 and 44 (for example, a notebook computer) through the SDR multimode terminal 43 (for example, The modulo data card) and 46 (for example, a multimode mobile phone), the communication link with the LTE base station 47, implements the wireless Internet access function of the WLAN terminals 41, 42 and 44; the other part is the WLAN terminal 45 (for example, a multimode mobile phone). The voice communication function of the WLAN terminal 45 is realized by a communication link with the LTE base station 47 by the SDR multimode terminal 46 (for example, a multimode mobile phone). The first part (the implementation of the wireless Internet access function) is as follows: Step 1: The SDR multimode terminals 43 and 46 (operating in the LTE mode) establish a connection with the LTE base station 47 by cell search, random access, and the like. Step 2: After the SDR multimode terminals 43 and 46 remain connected to the LTE base station 47, when no listening service is performed in the LTE working mode, the baseband chip of the SDR multimode terminal (LTE&WLAN) is softly switched to the WLAN mode to monitor the WLAN. The link ensures that the LTE link communicates with the WLAN link normally. Step 3: The WLAN terminals 41, 42 and 44 initiate a WLAN authentication request to the SDR multimode terminals 43 and 46. The SDR multimode terminals 43 and 46 monitor the authentication request in the WLAN mode, and respond to the authentication request, and the authentication is successfully established. Step 4: The WLAN terminals 41, 42 and 44 initiate data requests to the SDR multimode terminals 43 and 46. After the SDR multimode terminals 43 and 46 monitor the data request of the WLAN terminal in the WLAN mode, they respectively receive the WLAN terminals 41, 42 and The data request of 44 extracts the baseband data of the data request. When the SDR multimode terminals 43 and 46 operate in the LTE mode, a data request is initiated to the LTE base station 47 according to the LTE protocol. Step 5: The LTE base station 47 establishes a data path with the SDR multimode terminals 43 and 46 by interacting with the SDR multimode terminals 43 and 46 operating in the LTE mode in response to the data request. Step 6: When the SDR multimode terminals 43 and 46 are working in the WLAN mode, the data sent by the LTE base station 47 is sent to the WLAN terminals 41 and 42 according to the WLAN protocol requirements according to different identification codes of the WLAN terminals 41, 42 and 44. And 44; when the SDR multimode terminals 43 and 46 are operating in the LTE mode, the data transmitted by the WLAN terminals 41, 42 and 44 is transmitted to the LTE base station 47 as required by the LTE protocol, thereby implementing the WLAN terminals 41, 42 and 44 and the LTE base station. 47 data communication. Step 7: The WLAN terminals 41, 42 and 44 send an unlink notification to the SDR multimode terminals 43 and 46,
SDR多模终端 43和 46在工作于 WLAN模式时收到通告并解除连接。 第二部分 (实现语音通信功能) 的步骤如下: 步骤 1、步骤 2与步骤 3与第一部分的步骤 1、 步骤 2与步骤 3—致, 此处不再赘 述。 步骤 4: WLAN终端 45向 SDR多模终端 46发起语音请求, SDR多模终端 46在 WLAN模式下监测到 WLAN终端 45的语音请求后, 接受 WLAN终端 45发起的语音 请求, 提取语音请求的基带数据, 在 SDR多模终端 46工作在 LTE模式时, 按 LTE协 议要求向 LTE基站 47发起语音请求。 步骤 5 : LTE基站 47响应语音请求, 通过与工作在 LTE模式下的 SDR多模终端 46的交互, 建立语音链路。 步骤 6: SDR多模终端 46在工作于 WLAN模式时, 将 LTE基站 47发送的语音 数据按 WLAN协议要求, 发送给 WLAN终端 45; SDR多模终端 46在工作于 LTE模 式时, 将 WLAN终端 45发送的语音数据按 LTE协议要求发送给 LTE基站 47, 从而 实现 WLAN终端 45与 LTE基站 47的语音通信。 步骤 7: WLAN终端 45向 SDR多模终端 46发送解除连接通告, SDR多模终端 46在工作于 WLAN模式时收到通告并解除连接,同时中断与 LTE基站 47的语音通信。 图 5是根据本发明优选实施例的 SDR多模终端基带芯片的结构示意图,本优选实 施例中, 以支持 LTE制式和 WLAN制式的 SDR多模终端为例描述基带芯片的结构, 通过该芯片即可实现 LTE 与 WLAN 的多模。 如图 5 所示, SDR 多模终端中的 LTE/WLAN终端基带芯片 50包括: SDR-DSP 502、 ARM (Advanced RISC Machines , 其中 RISC是精简指令集计算机(Reduced Instruction Set Computer) 的缩写) 504和加 速器 506。 其中, SDR-DSP 502, 该数字信号处理 (Digital Signal Processing, 简称为 DSP) 芯片自定义了一套编程语言, 通过该编程语言实现 LTE模式和 WLAN模式下的物理 层上下行的数据处理 (除编解码之外) 和 1ms之内的控制。 The SDR multimode terminals 43 and 46 receive an announcement and disconnect when operating in the WLAN mode. The second part (implementing the voice communication function) has the following steps: Step 1, Step 2 and Step 3 and Step 1, Step 2 and Step 3 of the first part are not repeated here. Step 4: The WLAN terminal 45 initiates a voice request to the SDR multimode terminal 46. After monitoring the voice request of the WLAN terminal 45 in the WLAN mode, the SDR multimode terminal 46 accepts the voice request initiated by the WLAN terminal 45 to extract the baseband data of the voice request. When the SDR multimode terminal 46 operates in the LTE mode, a voice request is initiated to the LTE base station 47 according to the requirements of the LTE protocol. Step 5: The LTE base station 47 responds to the voice request and establishes a voice link by interacting with the SDR multimode terminal 46 operating in the LTE mode. Step 6: When the SDR multimode terminal 46 is working in the WLAN mode, the voice data sent by the LTE base station 47 is sent to the WLAN terminal 45 according to the WLAN protocol requirement; when the SDR multimode terminal 46 is operating in the LTE mode, the WLAN terminal 45 is used. The transmitted voice data is sent to the LTE base station 47 as required by the LTE protocol, thereby implementing voice communication between the WLAN terminal 45 and the LTE base station 47. Step 7: The WLAN terminal 45 sends a disconnection announcement to the SDR multimode terminal 46, and the SDR multimode terminal 46 receives the announcement and disconnects when operating in the WLAN mode, while interrupting the voice communication with the LTE base station 47. 5 is a schematic structural diagram of an SDR multimode terminal baseband chip according to a preferred embodiment of the present invention. In the preferred embodiment, an SDR multimode terminal supporting LTE standard and WLAN standard is taken as an example to describe the structure of a baseband chip. Multimode for LTE and WLAN. As shown in FIG. 5, the LTE/WLAN terminal baseband chip 50 in the SDR multimode terminal includes: SDR-DSP 502, ARM (Advanced RISC Machines, The RISC is an abbreviation of Reduced Instruction Set Computer 504 and an accelerator 506. The SDR-DSP 502, the digital signal processing (DSP) chip, defines a programming language, and implements data processing of the physical layer in the LTE mode and the WLAN mode by using the programming language. Outside the codec) and control within 1ms.
ARM 504主要是对 LTE和 WLAN协议桟的处理、运行部分物理层流程、控制 DSP 和射频 (Radio Frequency, 简称为 RF)。 加速器 506完成对软值的译码得到判决后的二进制码流的功能和对发送信号进行 编码的功能。 需要说明的是, 在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的 计算机系统中执行, 并且, 虽然在流程图中示出了逻辑顺序, 但是在某些情况下, 可 以以不同于此处的顺序执行所示出或描述的步骤。 综上所述, 根据本发明上述实施例提供的通信方法、 系统及多模终端, 通过基于 SDR的多模终端可以实现一个或多个终端与基站间的通信(终端与基站支持的制式不 同),解决了不同制式的终端与基站间的通信问题,例如,可以实现一个或多个 WLAN 终端与 LTE基站间的通信。 并且该多模终端是基于 SDR实现的, 减少了多模终端实 现的面积, 降低了硬件资源开销, 从而降低了不同制式的终端与基站间通信的成本。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可以用通用 的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布在多个计算装置所 组成的网络上, 可选地, 它们可以用计算装置可执行的程序代码来实现, 从而, 可以 将它们存储在存储装置中由计算装置来执行, 或者将它们分别制作成各个集成电路模 块, 或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。 这样, 本发明 不限制于任何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领域的技 术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内, 所作的 任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。 The ARM 504 is mainly used for processing LTE and WLAN protocols, running some physical layer processes, controlling DSP and radio frequency (RF). The accelerator 506 performs the function of decoding the soft value to obtain the function of the determined binary code stream and the function of encoding the transmission signal. It should be noted that the steps shown in the flowchart of the accompanying drawings may be performed in a computer system such as a set of computer executable instructions, and, although the logical order is shown in the flowchart, in some cases, The steps shown or described may be performed in an order different than that herein. In summary, the communication method, system, and multimode terminal provided by the foregoing embodiments of the present invention can implement communication between one or more terminals and a base station through an SDR-based multimode terminal (the terminal and the base station support different systems). The communication problem between the terminal and the base station of different standards is solved, for example, communication between one or more WLAN terminals and the LTE base station can be implemented. Moreover, the multimode terminal is implemented based on SDR, which reduces the area realized by the multimode terminal and reduces the hardware resource overhead, thereby reducing the cost of communication between the terminal and the base station in different standards. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

权 利 要 求 书  Claims
1. 一种通信方法, 包括: 1. A communication method, comprising:
通过多模终端建立支持第一制式的终端与第二制式基站间的连接, 其中, 所述多模终端基于软件定义无线电 SDR, 且支持所述第一制式和所述第二制 式;  Establishing, by the multimode terminal, a connection between the terminal supporting the first system and the second standard base station, wherein the multimode terminal is based on a software defined radio SDR, and supports the first system and the second system;
所述支持第一制式的终端通过所述多模终端及所述连接与所述第二制式基 站进行通信。  The terminal supporting the first mode communicates with the second standard base station through the multimode terminal and the connection.
2. 根据权利要求 1所述的方法 , 其中, 通过多模终端建立支持第一制式的终端与 第二制式基站间的连接包括 2. The method according to claim 1, wherein establishing a connection between the terminal supporting the first system and the second standard base station through the multimode terminal comprises
所述多模终端与所述第二制式基站建立连接;  The multimode terminal establishes a connection with the second standard base station;
所述多模终端从所述第二制式软切换到所述第一制式;  The multimode terminal is softly switched from the second mode to the first mode;
所述多模终端在所述第一制式下监测到来自所述支持第一制式的终端的认 证请求, 响应所述认证请求, 建立所述支持第一制式的终端与所述第二制式基 站间的连接。  The multimode terminal monitors an authentication request from the terminal supporting the first system in the first mode, and establishes the connection between the terminal supporting the first standard and the second base station in response to the authentication request. Connection.
3. 根据权利要求 1所述的方法, 其中, 所述支持第一制式的终端通过所述多模终 端及所述连接与所述第二制式基站进行通信包括: The method according to claim 1, wherein the communication between the terminal supporting the first mode and the second base station by using the multimode terminal and the connection comprises:
所述多模终端工作于所述第一制式时, 按照所述第一制式的协议要求将来 自所述第二制式基站的数据发送给所述支持第一制式的终端;  When the multimode terminal operates in the first mode, the data from the second standard base station is sent to the terminal supporting the first standard according to the protocol of the first standard;
所述多模终端工作于所述第二制式时, 按照所述第二制式的协议要求将来 自所述支持第一制式的终端的数据发送给所述第二制式基站。  When the multimode terminal operates in the second mode, the data from the terminal supporting the first system is transmitted to the second standard base station according to the protocol of the second system.
4. 根据权利要求 3所述的方法, 其中, 当多个支持第一制式的终端同时与所述第 二制式基站进行通信时, 所述多模终端工作于所述第一制式时, 按照所述第一 制式的协议要求将来自所述第二制式基站的数据发送给所述支持第一制式的终 端包括: The method according to claim 3, wherein, when a plurality of terminals supporting the first mode simultaneously communicate with the second standard base station, when the multimode terminal operates in the first mode, according to the method The first-standard protocol requires that data from the second-standard base station be sent to the terminal supporting the first-standard system, including:
所述多模终端工作于所述第一制式时, 根据所述第一制式的协议要求和各 个支持第一制式的终端的标识, 将来自所述第二制式基站的数据分别发送给所 述各个支持第一制式的终端。 根据权利要求 1所述的方法, 其中, 在所述支持第一制式的终端通过所述多模 终端及所述连接与所述第二制式基站进行通信之前, 所述方法还包括: When the multimode terminal operates in the first mode, the data from the second standard base station is separately sent to each of the second standard base stations according to the protocol requirements of the first standard and the identifiers of the terminals supporting the first standard. Supports the terminal of the first standard. The method according to claim 1, wherein, before the terminal supporting the first mode communicates with the second base station by using the multimode terminal and the connection, the method further includes:
所述多模终端在所述第一制式下接收到来自所述支持第一制式的终端的请 求, 并在所述多模终端处于所述第二制式时, 按照所述第二制式的协议要求向 所述第二制式基站转发所述请求, 其中, 所述请求用于请求传输数据或语音通 信。 根据权利要求 2所述的方法, 其中, 所述多模终端从所述第二制式软切换到所 述第一制式包括: 所述多模终端通过所述多模终端的基带芯片从所述第二制式 软切换到所述第一制式。 根据权利要求 1至 6中任一项所述的方法, 其中, 在所述支持第一制式的终端 通过所述多模终端及所述连接与所述第二制式基站进行通信之后, 所述方法还 包括:  The multimode terminal receives a request from the terminal supporting the first system in the first mode, and according to the protocol requirement of the second system when the multimode terminal is in the second mode Forwarding the request to the second standard base station, wherein the request is for requesting transmission of data or voice communication. The method according to claim 2, wherein the soft handover of the multimode terminal from the second mode to the first mode comprises: the multimode terminal passing the baseband chip of the multimode terminal from the The two-system soft switch to the first system. The method according to any one of claims 1 to 6, wherein after the terminal supporting the first system communicates with the second base station through the multimode terminal and the connection, the method Also includes:
所述多模终端工作于所述第一制式时, 接收到来自所述支持第一制式的终 端的解除连接通告, 并根据所述通告解除所述支持第一制式的终端与所述第二 制式基站间的连接。 一种多模终端, 包括:  When the multimode terminal operates in the first mode, receiving an unlinking announcement from the terminal supporting the first system, and releasing the terminal supporting the first system and the second system according to the notification The connection between the base stations. A multimode terminal, comprising:
建立模块, 设置为建立支持第一制式的终端与第二制式基站间的连接, 其 中, 所述多模终端基于软件定义无线电 SDR, 且支持所述第一制式和所述第二 制式;  Establishing a module, configured to establish a connection between the terminal supporting the first system and the second standard base station, wherein the multimode terminal is based on a software defined radio SDR, and supports the first system and the second system;
通信模块, 设置为通过所述连接与所述支持第一制式的终端以及所述第二 制式基站进行通信。 根据权利要求 8所述的多模终端, 其中, 所述建立模块包括:  And a communication module configured to communicate with the terminal supporting the first system and the second base station through the connection. The multimode terminal according to claim 8, wherein the establishing module comprises:
第一建立单元, 设置为与所述第二制式基站建立连接; 切换单元, 设置为从所述第二制式软切换到所述第一制式;  a first establishing unit, configured to establish a connection with the second standard base station; and a switching unit configured to softly switch from the second mode to the first mode;
第二建立单元, 设置为在所述第一制式下监测来自所述支持第一制式的终 端的认证请求, 响应所述认证请求, 建立所述支持第一制式的终端与所述第二 制式基站间的连接。 根据权利要求 8所述的多模终端, 其中, 所述通信模块包括: 第一发送单元, 设置为在所述多模终端工作于所述第一制式时, 按照所述 第一制式的协议要求将来自所述第二制式基站的数据发送给所述支持第一制式 的终端; a second establishing unit, configured to monitor, in the first mode, an authentication request from the terminal supporting the first system, and in response to the authentication request, establish the terminal supporting the first mode and the second base station The connection between the two. The multimode terminal according to claim 8, wherein the communication module comprises: a first sending unit, configured to: when the multimode terminal operates in the first mode, send data from the second standard base station to the first standard support according to a protocol requirement of the first standard terminal;
第二发送单元, 设置为在所述多模终端工作于所述第二制式时, 按照所述 第二制式的协议要求将来自所述支持第一制式的终端的数据发送给所述第二制 式基站。  a second sending unit, configured to: when the multimode terminal operates in the second mode, send data from the terminal supporting the first system to the second standard according to a protocol requirement of the second standard Base station.
11. 一种通信系统, 包括: 支持第一制式的终端、 多模终端和第二制式基站, 其中, 所述多模终端是权利要求 8至 10中任一项所述的多模终端; A communication system, comprising: a terminal supporting a first mode, a multimode terminal, and a second mode base station, wherein the multimode terminal is the multimode terminal according to any one of claims 8 to 10;
所述支持第一制式的终端包括:  The terminal supporting the first system includes:
建立模块, 设置为通过所述多模终端建立所述支持第一制式的终端与所述 第二制式基站间的连接;  Establishing a module, configured to establish, by the multimode terminal, a connection between the terminal supporting the first standard and the second standard base station;
通信模块, 设置为通过所述多模终端及所述连接与所述第二制式基站进行 通信。  And a communication module configured to communicate with the second base station via the multimode terminal and the connection.
PCT/CN2013/081176 2012-10-17 2013-08-09 Communication method, system and multimode terminal WO2014059816A1 (en)

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