Switching control method for wireless AN and AN

A wireless access network and control method technology, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve the problems of frequent transfer of session control rights, increased burden on switching systems, and insufficient utilization, and reduce repetition. The effect of hard handover, reducing call drop rate and reducing traffic burden

Inactive Publication Date: 2011-06-29
ZTE CORP
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AI Technical Summary

Problems solved by technology

However, the access terminal may stay on the boundary between ANs. If the signal strength of the two ANs changes drastically, the access terminal will switch back and forth between the two ANs, resulting in frequent transfer of session control rights, resulti

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  • Switching control method for wireless AN and AN
  • Switching control method for wireless AN and AN
  • Switching control method for wireless AN and AN

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Embodiment Construction

[0038] The technical solution of the present invention will be described in more detail below with reference to the drawings and embodiments.

[0039] AN supporting handover control such as image 3 As shown, the node responsible for switching control includes a switching control module and a session (Session) management module. among them:

[0040] The handover control module is used to receive the handover request of the access terminal. If it is determined that the soft handover condition is satisfied, after the soft handover is performed, the hard handover condition is judged according to the location of the access terminal and / or the service provided by the target side AN, such as If it is satisfied, the hard handover is started, and the session management module is controlled to transfer the session control right.

[0041] The session management module is used to manage the transfer of the session control right under the control of the handover control module, and transfer the...

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Abstract

The invention discloses a switching control method for a wireless AN (Access Network), which comprises the following steps: a source side AN firstly performs soft handover to an AT (Access Terminal) after receiving a switching request from the AT and judging that the switching request meets the soft handover requirement, and then the source side AN judges whether the AT after receiving the soft handover meet the hard handover requirement or not according to the position of the AT or a service provided by a target side AN, the hard handover is started if the AT meets the hard handover requirement, and the conversation control power of the AT is completely transferred to a target side AN. By integrating the advantages of the soft handover and the hard handover between the ANs to prevent the frequent switching of the AT between the ANs, so that the flow burden of interfaces between the ANs is lightened, the empty quality of the AT on the AN interface is improved, and the DCR (Dropped Call Rate) is reduced.

Description

Technical field [0001] The invention relates to a switching control method of a wireless access network and an access network. Background technique [0002] In the current CDMA 1X EV-DO air interface version 3GPP2C.S0024-B and A interface protocol version 3GPP2A.S0008-C_v2.0, A.S0009-C_v2.0, soft handover between access networks (AN) is defined And the standardized process and method of hard handover. The access network includes base stations and base station controllers. For the method of soft handover and hard handover between ANs, a Make-Before-Break (MBB) type handover procedure is proposed. [0003] For the MBB handover process, it requires both the access terminal (AT) and AN to have the ability to support multi-application layer protocol routing, that is, to support the Enhanced Multi-flow Packet Application version (3GPP2: C.S0063-A) v1.0), when the access terminal performs handover, it not only maintains the connection with the source side AN, but also establishes the c...

Claims

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Application Information

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IPC IPC(8): H04W28/10H04W36/08H04W36/18
Inventor 罗雪松张海龙
Owner ZTE CORP
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