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Apparatus and method for performing an expedited handover using a dedicated ranging channel in a wireless network

A wireless network, rapid technology, applied in the field of rapid handover, can solve the problems of long handover interruption time, high failure probability of optimized handover, etc.

Inactive Publication Date: 2010-11-03
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, in practice, optimized switching has a high probability of failure on the first try and one has to fall back to traditional switching
Therefore, optimized handover actually results in even longer handover interruption times than the traditional hard handover process

Method used

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  • Apparatus and method for performing an expedited handover using a dedicated ranging channel in a wireless network
  • Apparatus and method for performing an expedited handover using a dedicated ranging channel in a wireless network
  • Apparatus and method for performing an expedited handover using a dedicated ranging channel in a wireless network

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Embodiment Construction

[0031] discussed below Figure 1 to Figure 7 The various embodiments used to describe the principles of the disclosure in this patent document are by way of illustration only and should not be construed in any way as limiting the scope of the disclosure. Those skilled in the art will understand that the principles of the present disclosure may be implemented in any suitably arranged wireless communication system.

[0032] image 3 An exemplary wireless network 300 is illustrated that transmits ACK / NACK messages in accordance with the principles of the present disclosure. In the illustrated embodiment, wireless network 300 includes base station (BS) 301, base station (BS) 302, base station (BS) 303, and other similar base stations (not shown). Base station 301 communicates with base station 302 and base station 303 . Base station 301 is also in communication with Internet 330 or similar IP-based network (not shown).

[0033] Base station 302 provides wireless broadband acce...

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Abstract

A wireless network comprising a plurality of base stations capable of communicating with a plurality of mobile stations, wherein a serving base station is operable to serve a mobile station and a target base station is operable to transmit to the mobile station a message identifying a ranging slot dedicated to the mobile station. The target base station receives a ranging code from the mobile base station before the target base station receives a ranging request message from the mobile station. In an embodiment, the ranging slot may be an exclusive ranging slot dedicated to two or more mobile stations.

Description

technical field [0001] The present invention relates generally to wireless communications and, more particularly, to techniques for expedited handover using dedicated ranging channels. Background technique [0002] figure 1 is a flowchart illustrating a conventional hard handover procedure according to IEEE 802.16e. Such as figure 1 As shown, a conventional hard handover begins when the mobile station 102 sends a mobile station handover request (MOB_MSHO_REQ) message to the serving base station 104 (step 101). When receiving the MOB_MSHO_REQ message, the serving base station 104 sends a handover request (HO-Request) to the target base station 106 (step 103). Next, context transfer (105) and bearer path registration (step 107) occurs between the serving base station 104 and the target base station 106. Subsequently, a handover response (HO-Response) message is sent from the target base station 106 to the serving base station 104 (step 109). When receiving the HO-Response...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04L12/28
CPCH04W36/0055H04W36/0077H04J11/00
Inventor 冀保伟具昌会
Owner SAMSUNG ELECTRONICS CO LTD