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Signal sending method and device

A technology of signal transmission and transmission mode, which is applied in wireless communication, transmission path sub-channel allocation, access restriction, etc., and can solve problems such as fluctuations in adjacent cell interference, interference fluctuations in adjacent cell terminals, frequent activation of small cell 1, etc.

Active Publication Date: 2014-11-26
ZTE CORP
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Problems solved by technology

However, when terminal 1 returns to the coverage area of ​​small 1, small cell 1 will be reactivated. If terminal 1 frequently travels between two small cells, it will cause frequent activation of small cell 1, resulting in small cell 1 pairing neighbors. Zones of interference are constantly changing and fluctuating
In short, the premature dormancy of the active small cell will cause interference fluctuations to the adjacent cell terminal

Method used

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  • Signal sending method and device
  • Signal sending method and device

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Embodiment Construction

[0051] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

[0052] figure 2 A flow chart of the method for signal transmission of the present invention, such as figure 2 As shown, the signal transmission method of the present invention includes the following steps:

[0053] Step 201, the small cell sends a discovery signal DS signal in a corresponding sending manner according to the current state of the small cell. The sending manner includes a sending period and / or a sending pattern.

[0054] In the present invention, the sending cycle can be divided into short cycle and long cycle. The short period may be several milliseconds or tens of milliseconds. The long period can be hundreds of milliseconds. The sending period of the DS signal depends on the current state of the small cell.

[00...

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Abstract

Disclosed is a method for sending a signal, comprising: a small cell sending a discovery signal (DS) in a corresponding sending mode according to a current state of the small cell. Further disclosed is a device for sending a signal. In the present invention, according to the current state of the small cell, an access state of the small cell is adjusted in real time, thereby significantly reducing the interference of the small cell to a neighbour cell, improving the system performance, and being able to reduce the energy consumption of the small cell.

Description

technical field [0001] The present invention relates to a technique for reducing cell interference, in particular to a signal sending method and device. Background technique [0002] With the widespread popularization of personal computer (PC, Personal Computer) services and smart terminals, people have higher and higher requirements for wireless communication experience, especially communication speed. In the long-term evolution (LTE, Long Term Evolution) standard and subsequent standard evolution, in order to improve user perception and system throughput, especially in order to improve the throughput of hotspot areas, a heterogeneous network (HetNet, Heterogeneous Network,) is used. Network architecture, that is, deploying a large number of small cells (small cells) in the coverage area of ​​the macro area to improve the service quality and throughput in hotspot areas. [0003] Increasing the deployment of small cell nodes in hotspot areas is an effective mechanism to inc...

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Application Information

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IPC IPC(8): H04W36/04H04W48/16H04W52/02H04L5/00
CPCH04W24/10H04W48/12H04W52/0206Y02D30/70H04L5/0032H04W48/16H04W72/12
Inventor 徐汉青赵亚军莫林梅高永红曹爱军
Owner ZTE CORP
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