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Methods of contention-based transmission

US8964658B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8964658-B2
Application numberUS-201113065797-A
CountryUS
Kind codeB2
Filing dateMar 30, 2011
Priority dateMar 31, 2010
Publication dateFeb 24, 2015
Grant dateFeb 24, 2015

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  1. Title

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  2. Abstract

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A method for contention-based (CB) uplink transmission in a wireless communication network is provided. A base station (eNB) first transmits CB configuration information and CB grant to a user equipment (UE). The UE derives a plurality of transmission opportunities from the uplink CB grant and in response transmits uplink CB data via one of the transmission opportunities. The UE then receives an acknowledgment from the serving base station. If the uplink CB data is non-decodable by the eNB due to multiple contention UEs, then the UE retransmits the uplink data in response to a negative acknowledgment. In one novel aspect, the uplink transmission radio resource carriers both the uplink CB data and UE-selected signature information. In one embodiment, the UE-selected signature information is transmitted via pilot tones. By eliminating a separate phase of contention resolution, the overall latency of CB transmission is reduced and transmission efficiency is improved.

First claim

Opening claim text (preview).

What is claimed is: 1. A method for contention-based (CB) uplink transmission in a wireless communication network, the method comprising: receiving, by a user equipment (UE), CB configuration information and an uplink CB grant from a serving base station in the wireless communication network, wherein the uplink CB grant is received before transmitting UE-selected signature information; deriving a plurality of transmission opportunities from the uplink CB grant and in response tr…

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Frequently asked questions

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What does patent US8964658B2 cover?
A method for contention-based (CB) uplink transmission in a wireless communication network is provided. A base station (eNB) first transmits CB configuration information and CB grant to a user equipment (UE). The UE derives a plurality of transmission opportunities from the uplink CB grant and in response transmits uplink CB data via one of the transmission opportunities. The UE then receives a…
Who is the assignee on this patent?
Chen Yih-Shen, Hsu Chia-Chun, Lin Chih-Yuan, and 2 more
What technology area does this patent fall under?
Primary CPC classification H04W74/0841. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Feb 24 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).