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A cell search method for discontinuous frequency band mixing wireless communication system

A wireless communication system and cell search technology, applied in the field of cell search in hybrid wireless communication systems, can solve problems such as small system bandwidth

Active Publication Date: 2012-02-29
THE RES INST OF TELECOMM TRANSMISSION MIIT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But in the lower frequency band, only very limited frequency resources can be used for wireless communication, so the system bandwidth that can be realized is small (such as less than 20MHz)

Method used

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  • A cell search method for discontinuous frequency band mixing wireless communication system
  • A cell search method for discontinuous frequency band mixing wireless communication system
  • A cell search method for discontinuous frequency band mixing wireless communication system

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Embodiment Construction

[0041] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0042] figure 1 Represents the HWC system for discontinuous frequency bands of a preferred embodiment of the present invention, this system is made up of BMC subsystem 31 and BHA subsystem 32, and BMC subsystem coverage area 11 is other areas except the hotspot and in the hotspot area For high-speed mobile users, the BHA subsystem coverage area 13 is a hotspot area except for high-speed mobile users. The BMC subsystem 31 is used to provide wide-area coverage supporting high mobility in the low-band spectrum, and the BHA subsystem 32 is used to provide support for the high-band spectrum. Low mobility hotspot coverage. The BMC subsystem 31 and the BHA subsystem 32 can adopt the same network topology, that is, the base stations 12 of the two systems can be set at the same site. This kind of hybrid wireless communication system can realize ...

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Abstract

The invention provides a cell searching method for HWC system for discontinuous band. The HWC system for discontinuous band comprises a BMC subsystem and a BHA subsystem. The BMC subsystem covers the marginal area of the cell and high- speed mobile terminal in the cell. The BHA subsystem covers central area of the cell and low- speed mobile terminal in central area. The cell searching method for HWC system for discontinuous band comprises the synchronous operation and the cell identifying operation of HWC system. The synchronous operation can be done through synchronous channel. The cell identifying operation can be done through synchronous channel or through broadcast channel and pilot channel. The BMC subsystem and the BHA subsystem have the same time slot length. The invention has the advantage that any terminal can be connected with the HWC system no matter what the position is and how the mobility is.

Description

technical field [0001] The invention relates to the technical field of wireless communication systems, in particular to a cell search method for a hybrid wireless communication system with discontinuous frequency bands. Background technique [0002] With the development of wireless communication technology towards larger bandwidth, it is becoming more and more difficult to find ultra-large bandwidth that can be used in wireless communication systems. At present, the bandwidth of the wireless communication system has reached about 20 MHz. If the FDD (Frequency Division Duplex, hereinafter referred to as FDD) method and the uplink and downlink symmetric spectrum allocation method are adopted, a system will need to occupy a total of 40 MHz spectrum. It is quite difficult to allocate such frequency spectrum to multiple operators simultaneously in the existing frequency band suitable for mobile communication (for example, the frequency band below 3 GHz). However, the next genera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/16H04W56/00H04B1/7083
Inventor 沈嘉
Owner THE RES INST OF TELECOMM TRANSMISSION MIIT