Discovered signal transmission method and apparatus, and cell discovering method and apparatus

A technology for signal discovery and transmission method, applied in the field of discovery signal transmission method and cell discovery, and can solve problems such as shortage of authorized spectrum resources

Active Publication Date: 2016-04-13
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a transmission method for a discovery signal, a method and a device for cell discovery, so as to solve the problem caused by the shortage of authorized spectrum resources

Method used

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  • Discovered signal transmission method and apparatus, and cell discovering method and apparatus
  • Discovered signal transmission method and apparatus, and cell discovering method and apparatus
  • Discovered signal transmission method and apparatus, and cell discovering method and apparatus

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Embodiment Construction

[0128] Existing spectrum resources can be classified into licensed spectrum resources (also called licensed frequency bands) and unlicensed spectrum resources (also called licensed frequency bands). Among them, the licensed frequency band is a dedicated dedicated spectrum resource, and its interference is basically predictable; the unlicensed frequency band has no specific application system planned, and the shared unlicensed frequency band can be used for various wireless communication systems by preempting resources. Currently, wireless communication systems using unlicensed frequency bands include Bluetooth, wireless high-fidelity (WiFi), and the like. The technical solution provided by the embodiment of the present invention can send the discovery signal on the unlicensed frequency band, thereby avoiding the problem that the resources of the licensed frequency band are insufficient, resulting in the failure to allocate spectrum resources for the discovery signal or sending ...

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Abstract

The invention discloses a discovered signal transmission method and apparatus, and a cell discovering method and apparatus. The discovered signal transmission method comprises the steps of determining whether a channel in an unauthorized frequency band is in an idle state; if the channel in the unauthorized frequency band is in the idle state, in a transmission period of a discovered signal of a current period, sending the discovered signal in the channel in the idle state in the unauthorized frequency band; and if the channel in the unauthorized frequency band is not in the idle state, sending the discovered signal in a channel not in the idle state and not in the unauthorized frequency band in the current period. According to the method, the discovered signal can be sent in the unauthorized frequency band, so that the problems that spectrum resources cannot be allocated for the discovered signal due to shortage of the authorized frequency band resource or transmission of the discovered signal leads to strong interference are solved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method for transmitting a discovery signal, a method and a device for cell discovery. Background technique [0002] With the development of technology and the explosive growth of data services, more and more low-power base stations such as Picocell and HomeNodeB are deployed to provide local small coverage. Such base stations can be collectively referred to as small cells. (small cell). Deploying smallcells can not only expand the coverage of macrocells (Macrocells), but also improve throughput in specific areas. Generally, the more small cells are deployed in the network, the more users can be served by the small cells and enjoy the performance gain brought by the small cells, so that the overall throughput of the network can be greatly improved. It can be expected that in an actual network, a large number of small cells are likely to be densely deployed in ge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/16H04W72/04
CPCH04W48/16H04W52/0225H04W24/08H04W72/23H04W72/04
Inventor 徐伟杰潘学明沈祖康
Owner DATANG MOBILE COMM EQUIP CO LTD
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