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Method, base station, terminal and system for cooperative work of wireless local area network (WLAN) and cellular network

A cellular network, collaborative work technology, applied in network topology, network traffic/resource management, connection management, etc., can solve problems such as time-consuming, waste of system resources, affect user service experience, etc., to achieve the effect of improving speed

Active Publication Date: 2013-07-24
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cellular network and WLAN work independently. Every time the terminal decides to access the WLAN, it must search the network, receive beacon frames (Beacon) or send detection frames to randomly try to access an access point (AP, Access Point), sometimes it may take multiple attempts to successfully access the AP, which takes a long time and wastes system resources, and affects the user's business experience

Method used

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  • Method, base station, terminal and system for cooperative work of wireless local area network (WLAN) and cellular network
  • Method, base station, terminal and system for cooperative work of wireless local area network (WLAN) and cellular network
  • Method, base station, terminal and system for cooperative work of wireless local area network (WLAN) and cellular network

Examples

Experimental program
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Embodiment 1

[0035] Embodiment 1 of the present invention provides a method for cooperating WLAN and cellular network, the process of the method is as follows figure 2 shown, including:

[0036] Step 101, the base station determines whether it needs to access the WLAN.

[0037] In this step, the base station may determine whether the cellular network service needs to be offloaded by using the WLAN, and when it is determined that the cellular network service needs to be offloaded by the WLAN, it is determined that the terminal should access the WLAN.

[0038] Specifically, the base station may, but is not limited to, determine whether the terminal should access the WLAN according to the service type to be executed in the terminal. For example, when the service to be executed in the terminal is an instant messaging service, such as QQ chat, it is determined that the service needs to be offloaded by using the WLAN, that is, it is determined that the terminal should access the WLAN.

[0039...

Embodiment 2

[0072] Embodiment 2 of the present invention provides a base station, and the structure of the base station may be as follows image 3 shown, including:

[0073] The first determining unit 11 is used to determine that the terminal should access the wireless local area network WLAN; the second determining unit 12 is used to determine the deployment information of the WLAN; the sending unit 13 is used to determine the WLAN scheduling information according to the determined WLAN deployment information, and transmit The physical downlink control channel PDCCH of the network sends WLAN scheduling information to the terminal.

[0074] The second determining unit 12 is specifically configured to determine WLAN deployment information in any of the following three ways:

[0075] When it is determined that the terminal should access the WLAN, a request is initiated to the network element storing the deployment information of the WLAN, and the received deployment information of the WLAN...

Embodiment 3

[0079] Embodiment 3 of the present invention provides a terminal, and the structure of the terminal may be as follows Figure 4 shown, including:

[0080] The receiving unit 21 is used to receive the wireless local area network WLAN scheduling information sent by the base station through the physical downlink control channel PDCCH of the cellular network;

[0081] The access unit 22 is configured to access the WLAN according to the WLAN scheduling information.

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Abstract

The invention provides a method, a base station, a terminal and a system for cooperative work of a wireless local area network (WLAN) and a cellular network. The method comprises the steps that when the base station confirms that the WLAN should be accessed into the terminal, namely the WLAN needs to be used for distributing services of the cellular network, deployment information of the WLAN is confirmed, a frequency point of work of the WLAN is used as a sub-carrier, a physical downlink control channel (PDCCH) of the cellular network is used for carrying out cross-carrier scheduling on the WLAN through a carrier aggregation mode, and the WLAN can be accessed into the terminal according to WLAN scheduling information sent by the base station through the PDCCH. Therefore, the problems that when the fact that the WLAN should be accessed into the terminal is confirmed, access time is long and system resources are wasted in the prior art are solved, and speed that the WLAN is accessed into the terminal is improved.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a method, base station, terminal and system for cooperating between a wireless local area network (WLAN, Wireless Local Area Network) and a cellular network. Background technique [0002] Due to the advantages of operating in the 2.4GHz license-free frequency band, low equipment cost, easy deployment, and high data rate, WLAN has been considered as an important means of offloading cellular network services. Using the WLAN network to offload cellular network services, especially low-value services such as web browsing and instant messaging (such as QQ, msn), can effectively reduce the burden on the cellular network, improve indoor coverage, and provide high-speed access, thereby improving user experience. [0003] Currently, the 3rd Generation Partnership Project (3GPP) has defined a terminal network selection architecture based on operator policies, which can be as f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/12H04W76/02
CPCH04W28/08H04W72/12H04W72/04H04W84/045H04W48/12
Inventor 谢芳胡南胡臻平
Owner CHINA MOBILE COMM GRP CO LTD
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