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Cell searching method and device for MMC (Millimeter Wave Communication) network

A cell search and network technology, applied in the field of cell search, can solve problems affecting data transmission, etc.

Active Publication Date: 2017-01-11
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the severe propagation loss of mmWave poses great challenges to traditional cell search schemes and affects data transmission

Method used

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  • Cell searching method and device for MMC (Millimeter Wave Communication) network
  • Cell searching method and device for MMC (Millimeter Wave Communication) network
  • Cell searching method and device for MMC (Millimeter Wave Communication) network

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Embodiment Construction

[0019] Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0020] First, the cell search process is briefly introduced by taking the LTE network as an example.

[0021] Cell search is a process in which user equipment (UE) and the network obtain time and frequency synchronization and detect cell ID, which usually includes the following steps:

[0022] 1. The base station broadcasts PSS (Primary Synchronization Signal, Primary Synchronization Signal) and SSS (Secondary Synchronization Signal, Secondary Synchronization ...

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Abstract

The invention provides a cell searching method and a device for a MMC (Millimeter Wave Communication) network. The MMC network is a separate MMC network. The MMC network comprises a base station with a large-sized antenna array. One method comprises steps: in the base station, all antenna units in the large-sized antenna array are used for simultaneously generating multiple transmission beams; and through the multiple transmission beams, multiple PSSes and SSSes are simultaneously transmitted to UE in the MMC cell, wherein each PSS or SSS contains a beam index of the corresponding transmission beam.

Description

technical field [0001] The present invention generally relates to the field of wireless communication, and more specifically, relates to a method and device for cell search in an MMC network. Background technique [0002] Millimeter-Wave (Millimeter-Wave) refers to electromagnetic waves with a frequency in the range of 30GHz to 300GHz, and its wavelength is 1mm-10mm, so it is called millimeter-wave. Millimeter waves have the advantages of short wavelength, wide frequency range, strong anti-interference, good confidentiality, and small equipment size. They can effectively solve many problems faced by high-speed broadband wireless access, and thus have attracted widespread attention. However, on the other hand, millimeter waves are absorbed by rain, air, etc. during propagation, which may cause serious propagation loss. [0003] Millimeter Wave Communication (MMC) is considered to be a key technology in the future 5G (fifth generation) wireless communication field, and it is ...

Claims

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Application Information

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IPC IPC(8): H04W48/16
CPCH04W48/16H04B7/0469H04W16/28
Inventor 孙欢
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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