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Secondary cell selection based on geographic signatures

A secondary cell and cell technology, applied in the field of secondary cell selection of wireless devices, can solve the problem of increased battery consumption of wireless devices

Active Publication Date: 2016-09-21
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in order to ensure that wireless devices A, B, C, D, and F perform measurements on candidate sCells when using the regular sCell procedure, the s-Measure parameter must be disabled, which will result in increased battery consumption of the wireless devices

Method used

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  • Secondary cell selection based on geographic signatures
  • Secondary cell selection based on geographic signatures
  • Secondary cell selection based on geographic signatures

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Embodiment Construction

[0038] The embodiments presented below represent the necessary information to enable any person skilled in the art to practice the embodiments and illustrate the best mode of practicing the embodiments. Upon reading the following description in conjunction with the accompanying drawing figures, those skilled in the art will understand the concepts of the disclosure and will recognize applications of these concepts not particularly addressed herein. It should be understood that these concepts and applications fall within the scope of this disclosure and the accompanying drawings.

[0039] Systems and methods are disclosed for secondary cell (sCell) selection for a wireless device operating according to a carrier aggregation scheme in a cellular communication network. In this regard, image 3 A cellular communication network 14 is illustrated in which sCell selection is performed according to one embodiment of the present disclosure. Note that in many of the embodiments descri...

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Abstract

Systems and methods for Secondary Cell (sCell) selection for wireless devices (22) operating according to a carrier aggregation scheme in a cellular communications network (14) are disclosed. In one embodiment, a network node (16) in the cellular communications network (14) obtains geographic 5 signatures for a number of candidate sCells (24). The geographic signatures include a geographic signature for each candidate sCell (24) that approximates a coverage area of the candidate sCell (24). The network node (16) obtains position information for a wireless device (22) and then selects one or more sCells (24) for the wireless device (22) from the candidate sCells (24) based on 10 the geographic signatures for the candidate sCells (24) and the position information for the wireless device (22). The network node (16) then configures the selected sCell(s) (24) for use by the wireless device (22) according to a carrier aggregation scheme. Using this process, sCell selection is performed, in some examples, without measurement gaps and without disabling an s-Measure 15 parameter.

Description

[0001] related application [0002] This application claims the benefit of US Patent Application Serial No. 14 / 171,338, filed February 3, 2014, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates to cellular communication networks, and more particularly, to secondary cell selection for wireless devices operating according to a carrier aggregation scheme. Background technique [0004] Carrier aggregation was introduced in the 3rd Generation Partnership Project (3GPP) Long Term Evolution-Advanced (LTE) Release 10 (LTE Rel-10) as an LTE-Advanced feature. Using carrier aggregation, multiple "component carriers" (CCs) can be aggregated and jointly used for transmissions to and from a single wireless device. Each component carrier can have any LTE Release 8 (LTERel-8) bandwidth: 1.4, 3, 5, 10 or 20 megahertz (MHz). Up to five component carriers can be aggregated to give a maximum aggregated bandwid...

Claims

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Application Information

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IPC IPC(8): H04W48/20
CPCH04W48/20G01S5/00H04W36/326H04L5/001H04L5/0069H04W36/04H04W36/06H04W36/32H04L5/00
Inventor 鲁国强K·D·曼L·伯斯特罗姆E·W·帕森斯R·刘I·布乔德J·博尔曼刘清朝D·拉纳维拉E·马
Owner TELEFON AB LM ERICSSON (PUBL)
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