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Beam detection, beam tracking and random access in mm-wave small cells in heterogeneous network

A heterogeneous wireless network and small cell technology, applied in access restriction, network planning, electrical components, etc.

Active Publication Date: 2018-02-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Detecting the correct beam between the mmWave evolved Node B (eNB) and user equipment (UE) will cause a lot of signaling and time overhead

Method used

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  • Beam detection, beam tracking and random access in mm-wave small cells in heterogeneous network
  • Beam detection, beam tracking and random access in mm-wave small cells in heterogeneous network
  • Beam detection, beam tracking and random access in mm-wave small cells in heterogeneous network

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Embodiment Construction

[0017] Before establishing communication between a millimeter-wave evolved base station (Evolved Node B, eNB) and a UE, it is necessary to determine a beam direction in the millimeter-wave eNB or in the millimeter-wave eNB and the UE. The conventional process of detecting and tracking beams in mmWave cells requires extensive beam training and blind detection, which results in significant sounding overhead.

[0018] Embodiments of the present invention provide a method and system for beam detection, beam determination and beam selection in a millimeter wave small cell in a heterogeneous network (heterogeneous network, HetNet). This method can significantly reduce the overhead of the UE initially accessing a small cell eNB such as a millimeter wave eNB. Embodiments of the present invention also provide a method and system for establishing and maintaining communication (such as a data link) between a small cell eNB and a UE through beam determination and beam tracking. In the em...

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PUM

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Abstract

A system and method for beam detection and beam tracking are disclosed. In an embodiment the method includes detecting, by the UE, reference signals sent in beams by one or more small cell nodes, eachreference signal being allocated to a beam, measuring, by the UE, beam qualities of the beams, reporting, by the UE, best quality beams to a macro cell node, receiving, by the UE, an assignment fromthe macro cell node, wherein the assignment is for sending an access signal to the designated small cell node and sending, by the UE, the access signal to the designated small cell node.

Description

[0001] Related Applications Cross Application [0002] This application requires that the invention submitted on July 2, 2015 be titled "Beam Detection, Beam Tracking and Random Access in MM-Wave Small Cells in Heterogeneous Networks" Heterogeneous Network), which is incorporated herein by reference in its entirety. technical field [0003] The present invention generally relates to a system and method for beam detection or beam pulling, and in a specific embodiment, to a beam for use in millimeter wave (mm-wave) small cells in a heterogeneous network Systems and methods for selection or beam pulling. Background technique [0004] It is expected that the next generation of wireless communication systems (5G) will need to provide 100 to 1000 times greater capacity than current 4G systems (such as LTE or WiMAX) in order to meet the projected growth in mobile traffic. Existing approaches to increase spectral efficiency are unlikely to meet this explosive demand for wireless d...

Claims

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Application Information

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IPC IPC(8): H04W48/20
CPCH04W74/006H04W48/20H04W74/0833H04W16/32H04W24/10
Inventor 刘斌
Owner HUAWEI TECH CO LTD
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