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Method and device in wireless communication system

A communication system and signal technology, applied in the field of base stations, to achieve the effects of easy implantation, improved estimation, robust and reliable performance

Inactive Publication Date: 2016-02-03
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0018] Therefore, the problem is to determine the position of the user equipment relative to the base station, e.g. by determining the direction of arrival or the distance with increased precision

Method used

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  • Method and device in wireless communication system
  • Method and device in wireless communication system
  • Method and device in wireless communication system

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Embodiment Construction

[0035]The present invention is defined as a method and an apparatus in a base station, which can be implemented in the embodiments described below. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will convey the concept of the invention to those skilled in the art. scope.

[0036] Other objects and features of the present invention will become apparent from the following detailed description considered in conjunction with the accompanying drawings. It is to be understood, however, that the drawings are designed for purposes of illustration only, and not for a definition of the limits of the invention, for which reference is made to the appended claims. It is also to be understood that the drawings are not necessarily drawn to scale and that, unless otherwise indicated, they are intended on...

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Abstract

Method and arrangement in a first base station for calculating a first location parameter α of a user equipment in order to improve beamforming accuracy. The first base station and the user equipment are comprised in a Coordinated Multiple Point “CoMP” communication system together with a second base station. The method comprises measuring a signal received from the user equipment, estimating a first parameter value α′ based on the measured signal, obtaining a second parameter value α″, based on an estimated second location parameter β of the user equipment, estimated at the second base station and calculating the first location parameter α, based on the first estimated parameter value α′ and the obtained second parameter value α″.

Description

technical field [0001] The invention relates to methods and devices in a base station. In particular, it relates to a mechanism for computing a first location parameter of a user equipment within a Coordinated Multipoint (CoMP) system. Background technique [0002] Coordinated Multipoint (CoMP) is a key feature in Long-Term Evolution-Advanced (LTE) to further improve coverage at high data rates, cell-edge throughput and / or increase system throughput in order to meet 3G Partnership Project (3GPP) LTE-Advanced Requirements. In the present context, the expression "uplink" denotes communication from a user equipment (UE) to a base station, whereas the expression "downlink" denotes communication in the opposite direction, ie from a base station to a user equipment. Downlink CoMP transmission refers to a system in which transmissions at multiple geographically separated antenna sites are dynamically coordinated. Coordination can be distributed through direct communication betwe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/00
CPCH04W24/02G01S5/04H04W64/006
Inventor 胡旸甘剑松A.哈费茨
Owner TELEFON AB LM ERICSSON (PUBL)
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