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Apparatus, method and computer program product for selecting beam sets and beam subsets in a communication system

A beam group and beam technology, applied in the field of communication systems, can solve problems such as poor coverage of wireless communication equipment

Active Publication Date: 2016-08-03
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is generally believed that coverage for wireless communication devices located at beam intersections in the antenna beam space may be poor under current configurations

Method used

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  • Apparatus, method and computer program product for selecting beam sets and beam subsets in a communication system
  • Apparatus, method and computer program product for selecting beam sets and beam subsets in a communication system
  • Apparatus, method and computer program product for selecting beam sets and beam subsets in a communication system

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Embodiment Construction

[0019] The making and using of the presently preferred embodiments are discussed in detail below. It should be appreciated, however, that the present invention provides many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific embodiments discussed are merely illustrative of specific ways to make and use the invention, and do not limit the scope of the invention. In light of the foregoing, reference will be made to examples in the specific context of apparatuses, methods, and systems for determining and communicating channel states and antenna beam characteristics from a wireless communication device, such as a user equipment, to a base station in a communication system The present invention will be described by way of example. The apparatus, methods and systems are applicable to, but not limited to, any communication system including existing and future 3GPP technologies (ie, UMTS, LTE and future variations thereof, such as ...

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Abstract

An apparatus and method for selecting a beam group and a subset of beams in a communication system are disclosed. The method includes: measuring channel state information (CSI) on a downlink from a base station (920); identifying a selected beam group out of a set of beam groups according to a wideband property of the CSI (930); identifying a selected subset of beams in the selected beam group according to at least one subband (940). Wherein the characteristic of the set of beam groups depends on a transmission rank and the number of beams in the selected subset of beams is equal to the transmission rank. The method further includes: generating encoded feedback information identifying the selected beam group and the selected subset of beams for each subband in a double codebook format (950), transmitting the encoded feedback information to the base station. A computer program product comprising the computer program code which is configured to cause the apparatus to implement above operations is also disclosed.

Description

[0001] related application [0002] The present application claims the priority of PCT application PCT / CN2010 / 073411 (Attorney Docket No. EIE100124PCT) entitled "Apparatus and Method for Selection of Beam Groups and Subset of Beamsina Communication System" filed with SIPO on June 1, 2010, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates generally to communication systems, and in particular, to apparatus, methods and systems for selecting beam sets and beam subsets in a communication system. Background technique [0004] 3rd Generation Partnership Project ("3GPP") Long Term Evolution ("LTE") (also referred to as 3GPP LTE) refers to research and development involving 3GPP LTE Release 8 and beyond, which is commonly used in the industry to describe the The name of an ongoing effort to identify the technologies and capabilities of systems such as the Universal Mobile Telecommunications System ("UMTS"). Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/03
Inventor T·科伊维斯托T·罗曼M·厄内斯屈谭爽H-L·玛塔南
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD