Method and apparatus for tracking uplink beam in beamforming-based cellular system

A technology of beam tracking and cellular system, applied in the direction of transmission system, radio transmission system, electrical components, etc., can solve problems such as long time, communication interruption, etc.

Active Publication Date: 2016-11-16
SAMSUNG ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the physical constraint that the MS cannot measure the received signal quality of multiple beam pairs at once, it takes a long time to detect the best beam pair
When a handover event occurs as the MS moves from the serving cell to a neighboring cell, this time delay may cause a communication interruption while the MS is searching for a new beam pair for the neighboring cell

Method used

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  • Method and apparatus for tracking uplink beam in beamforming-based cellular system
  • Method and apparatus for tracking uplink beam in beamforming-based cellular system
  • Method and apparatus for tracking uplink beam in beamforming-based cellular system

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Embodiment Construction

[0033]Preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. A detailed description of known functions or constructions will be omitted lest it would obscure the subject matter of the present disclosure. Terms used herein are defined in consideration of functions according to the present disclosure, and may be changed according to user's or operator's intention or custom. Therefore, definitions should be made based on the overall content of the present disclosure.

[0034] figure 1 An exemplary beamforming-based cellular system to which the present disclosure is applicable is illustrated.

[0035] refer to figure 1 , a base station (BS) 110 may serve mobile stations (MS) 120 and 130 within a cell using a transmit antenna configured as an array antenna. BS 110 forms beams for one or more scheduled MSs 120 and 130 by controlling gain values ​​for each transmit antenna direction (or channel). In the illustrate...

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Abstract

A method and an apparatus for tracking an uplink beam in a beamforming-based cellular system are disclosed. A method for a terminal comprises the steps of: transmitting, to a serving base station, a measurement report containing signal qualities of the serving base station and neighboring base stations; receiving, from the serving base station, uplink beam tracking information of at least one beam tracking target base station; transmitting an uplink beam training signal for the beam tracking target base station, on the basis of the uplink beam tracking information; and receiving, from the serving base station, information on an optimum terminal transmission beam of the beam tracking target base station, and storing the received information.

Description

technical field [0001] The present disclosure relates to methods and apparatus for tracking uplink beams for efficient handover in beamforming based cellular systems. Background technique [0002] In order to meet the demand for wireless data services that have been increasing since the commercialization of the fourth generation (4G) communication system, efforts have been made to develop the fifth generation (5G) or quasi-5G communication system. This is why a 5G or quasi-5G communication system is called over a 4G network communication system or a post-Long Term Evolution (LTE) system. [0003] To achieve high data rates, it is worth considering deploying 5G communication systems in millimeter-wave (mmWave) frequency bands (eg, 60-GHz frequency band). In order to reduce the propagation path loss and increase the propagation distance in the mmWave frequency band, beamforming, massive multiple-input multiple-output (MIMO), omnidirectional MIMO (FD-MIMO), array antennas, ana...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/00H04W24/10
CPCH04W24/00H04W24/10H04B7/0404H04B7/0408H04B7/0695H04W36/08H04W36/30H04W36/38H04W36/00835H04W36/0085H04B7/0617H04L43/08H04W72/21
Inventor 柳铉逸
Owner SAMSUNG ELECTRONICS CO LTD
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