Techniques for supporting relay operation in wireless communication systems

US8971241B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8971241-B2
Application numberUS-56824209-A
CountryUS
Kind codeB2
Filing dateSep 28, 2009
Priority dateSep 30, 2008
Publication dateMar 3, 2015
Grant dateMar 3, 2015

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Abstract

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Techniques for supporting operation of relay stations in wireless communication systems are described. In an aspect, a bitmap may be sent by a base station and/or a relay station to identify subframes of at least two types in multiple radio frames. For example, the bitmap may indicate whether each subframe covered by the bitmap is of a first type or a second type. UEs may use the bitmap to control their operation. For example, a UE may perform channel estimation or measurement for the subframes of the first type and may skip channel estimation and measurement for the subframes of the second type. In another aspect, a base station may transmit data and/or control information on resources not used by a relay station to transmit a reference signal. This may avoid interference to the reference signal from the relay station, which may improve performance for UEs communicating with the relay station.

First claim

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What is claimed is: 1. A method for wireless communication, comprising: generating a bitmap covering a plurality of radio frames, each radio frame comprising a plurality of subframes, wherein at least one bit in the bitmap identifies a specific type of at least two subframe types for one of the plurality of subframes, and wherein at least one bit in the bitmap indicates to receiving user equipments (UEs) whether to perform a channel characteristic inquiry using the respective subf…

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What does patent US8971241B2 cover?
Techniques for supporting operation of relay stations in wireless communication systems are described. In an aspect, a bitmap may be sent by a base station and/or a relay station to identify subframes of at least two types in multiple radio frames. For example, the bitmap may indicate whether each subframe covered by the bitmap is of a first type or a second type. UEs may use the bitmap to cont…
Who is the assignee on this patent?
Palanki Ravi, Bhattad Kapil, Bhushan Naga, and 4 more
What technology area does this patent fall under?
Primary CPC classification H04L1/0023. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).