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Media independent switching device and method

A media-independent switching and media-independent technology, which is applied in the direction of selection device, wireless communication, wireless network protocol, etc., can solve the problems of increasing cost, low efficiency, ambiguous relationship, etc., and achieve the effect of improving efficiency and reducing cost.

Inactive Publication Date: 2007-08-29
HUAWEI TECH CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0029] 1. Since each access link layer needs to perform new conversion to / from MIH interface primitives, it is necessary to make major changes to the existing interfaces of each access link layer, which greatly increases the cost
[0030] 2. The system implementation is complicated and the efficiency is low
It is easy to see that MIH_SAP and MIH_LINK_SAP define two sets of basically the same event and command primitives. The relationship between these two interfaces is ambiguous, which increases the difficulty of understanding MIH and the complexity and cost of its implementation.
[0031] 3. Not universal
Therefore, it cannot be well independent, which brings great inconvenience to its promotion and application.

Method used

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  • Media independent switching device and method
  • Media independent switching device and method

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Embodiment Construction

[0052] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0053] Fig. 3 is a schematic diagram illustrating the principle of the present invention. As shown in Figure 3, the MIHF layer is a media-independent adaptation layer, and its functions can be divided into three sublayers: MIH_ES, MIH_CS, and MIH_IS. The service access point of MIHF is the same as that of the upper user layer is MIH_SAP, and MIHF is the same as that of the lower link layer. The service access points are divided into different access points according to different link layers: 802.3_SAP, 802.11_SAP, 802.16_SAP, 3GPP_SAP and 3GPP2_SAP. These service access points are media-related and correspond to actual service access points They are one or some of the following SAPs:

[0054] 802.3_SAP: L_SAP;

[0055] 802.11_SAP: L_SAP, MLME_SAP;

[0056] 802.16_SAP: CS_SAP, C_MAP, M_SAP;

[0057] 3GPP_SAP: MIH_3G_LINK_SAP;

[0058] 3GP...

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Abstract

The device includes following units: first interface unit in use for carrying out interaction of information, commands, and events with up layer through media independent primitive; second interface unit in use for carrying out interaction with low layer through media independent primitive; adaptation conversion unit in use for carrying out conversion directly for formants of information, commands, and events received from first interface unit or second interface unit, and carrying out distributing converted information, commands or events through first interface unit or second interface unit.

Description

technical field [0001] The present invention relates to an apparatus and method for media independent handover. Background technique [0002] Under the existing wireless communication technology conditions, mobile users cannot roam and switch under different wireless access technologies. In order to solve the roaming and switching of mobile users between IEEE802. In 2003, the IEEE 802 wireless working group established the IEEE 802 handover research group - Handoff ECSG. At present, it has been officially named IEEE 802.21 Working Group, which is responsible for formulating a public handover framework for wired and wireless IEEE 802 standards (such as IEEE 802.3 / 11 / 16) and 3G standards, and regulating the requirements for handover between different standards and the corresponding handover mechanism. [0003] The purpose of the 802.21 (Media-Independent Handover) standard development is to provide the handover process between different types of media, and to enhance the use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04W36/00H04W80/00H04W92/00
Inventor 郭均祥
Owner HUAWEI TECH CO LTD
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