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Spatial separation as beam reporting condition

A technology of spatial separation and beam, applied in the field of mobile communication, can solve the problems of poor refraction performance, sudden change of high-frequency radio access technology link quality, loss of coverage, etc., to increase the uplink signaling load, reliable backup The effect of beam selection

Active Publication Date: 2019-02-05
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Narrow beams can be lost quickly, especially when combined with poor refraction properties
Therefore, beamforming-based HF radio access technologies are more susceptible to sudden changes in link quality or even loss of coverage, which can lead to significant delays and inability to signal until the wireless device is able to recover and find coverage again

Method used

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  • Spatial separation as beam reporting condition

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Embodiment Construction

[0029] Aspects of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings. The apparatus and methods disclosed herein may, however, be embodied in many different forms and should not be construed as limited to the aspects set forth herein. Like reference numerals refer to like elements throughout the drawings.

[0030] The terminology used herein is for the purpose of describing certain aspects of the present disclosure only and is not intended to limit the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.

[0031] As discussed in the Background, future systems are expected to make heavy use of high-gain narrow beamforming, which makes maintaining a reliable radio link a challenge. figure 1 An example of a network node 20 transmitting several directional beams 1, 2, 3, 4 and two receiving wireless device...

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Abstract

The disclosure relates to methods, devices, and computer programs in mobile communications. More specifically, the proposed technique relates to facilitating communication between a network node and awireless device. In particular the disclosure relates to introducing spatial separation as a beam reporting condition in order to mitigate the effects of link failure. The disclosure proposes a method for use in a wireless device, for facilitating communication with a network node. The method comprises performing measurements relating to channel quality and spatial separation of a plurality of candidate downlink beams, determining, based on the performed measurements, a set of downlink beams, such that each beam in the set of beams satisfies a channel quality criterion and a spatial separation criterion, and reporting information defining the determined set of downlink beams to a network node.

Description

technical field [0001] The present invention relates to methods, devices and computer programs in mobile communications. More specifically, the proposed techniques relate to facilitating communications between network nodes and wireless devices. In particular, this disclosure relates to introducing spatial separation as a beam reporting condition in order to mitigate the effects of link failures. Background technique [0002] The 3rd Generation Partnership Project 3GPP is responsible for the standardization of Universal Mobile Telecommunications System UMTS and Long Term Evolution LTE. The 3GPP work related to LTE is also known as Evolved Universal Terrestrial Access Network E-UTRAN. LTE is a technology for realizing packet-based high-speed communication that can achieve a high data rate in both downlink and uplink, and is considered to be a next-generation mobile communication system relative to UMTS. To support high data rates, LTE allows a system bandwidth of 20MHz, or...

Claims

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Application Information

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IPC IPC(8): H04B7/06H04W72/04
CPCH04B7/0695H04W72/046H04B7/0617H04W24/08H04B7/0413H04B7/0632
Inventor 约翰·鲁内约翰·艾克斯纳斯安德烈斯·雷亚亨利克·萨林艾卡罗·L·J·达席尔瓦
Owner TELEFON AB LM ERICSSON (PUBL)
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