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Air interface synchronization method, equipment and system

A technology for air interface synchronization and synchronization of subframes, applied in the field of communication, can solve problems such as resource waste, and achieve the effect of avoiding resource waste and saving system resources

Active Publication Date: 2013-01-23
CHINA MOBILE COMM GRP CO LTD
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Problems solved by technology

[0009] An embodiment of the present invention provides an air interface synchronization method to solve the problem of waste of resources in the synchronization process existing in the prior art, including:

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  • Air interface synchronization method, equipment and system
  • Air interface synchronization method, equipment and system
  • Air interface synchronization method, equipment and system

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Embodiment Construction

[0036] In order to save system resources, an embodiment of the present invention proposes an air interface synchronization method, the specific process of which is as follows Figure 5 shown, including:

[0037] Step 501, the indoor base station that is not synchronized with the outdoor base station listens to the synchronization subframe sent by the outdoor base station and / or the indoor base station that has been synchronized with the outdoor base station, and selects a synchronization reference base station from the base stations corresponding to the detected synchronization subframe, Wherein, the synchronization subframe includes a dedicated synchronization channel for broadcasting the synchronization sequence;

[0038] Step 502: Obtain the synchronization sequence broadcast by the synchronization reference base station on the dedicated synchronization channel set in the synchronization subframe sent by the synchronization reference base station, and perform synchronizatio...

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Abstract

An air interface synchronization method is provided. The method includes that: a home-eNodeB which is not synchronized with an eNodeB, intercepts a synchronization subframe transmitted from the eNodeB and / or the home-eNodeB which was already synchronized with the eNodeB, a synchronization reference base station is selected from the base station which transmits the intercepted synchronization subframe, wherein the synchronization subframe includes a special synchronization channel for broadcasting synchronization sequence; the synchronization sequence is obtained, which is broadcasted in the special synchronization channel of the synchronization subframe transmitted by the synchronization reference station, and the synchronization with the synchronization base station is performed according to the synchronization sequence. Also, an air interface synchronization system, an eNodeB and a home-eNodeB are provided. The problem in prior art that the source is wasted in the process of synchronization is solved according to the method, the system, the eNodeB and the home-eNodeB.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to an air interface synchronization method, an outdoor base station, an indoor base station and an air interface synchronization system. Background technique [0002] In mobile communication systems, co-channel interference is an important factor restricting system capacity. When the mobile communication system enters the 3G era, due to the realization of the same-frequency networking technology, the same-channel interference evolves into adjacent cell interference, and the restriction of the interference on the system capacity becomes more prominent. For a Long Term Evolution (LTE) system, not only a base station (Base Station, BS) in an adjacent cell will interfere with a user equipment (User Equipment, UE) in the current cell, but also a UE in the adjacent cell will interfere with the UE in the current cell. For example, in the downlink, the interference from neighboring c...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W56/00H04B7/26
CPCH04W92/20H04W56/0015H04W88/08H04W56/00
Inventor 王竞崔春风刘光毅
Owner CHINA MOBILE COMM GRP CO LTD
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