The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 24, 2018

Filed:

Aug. 01, 2013
Applicant:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Inventors:

Chetan Harsha, Bristol, GB;

Zhong Fan, Bristol, GB;

Fengming Cao, Bristol, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2018.01); H04W 74/08 (2009.01); H04W 74/00 (2009.01); H04L 5/00 (2006.01); H04W 4/70 (2018.01);
U.S. Cl.
CPC ...
H04W 4/005 (2013.01); H04L 5/006 (2013.01); H04W 4/70 (2018.02); H04W 74/008 (2013.01); H04W 74/0833 (2013.01);
Abstract

In a 3GPP LTE-A support for Mobile Type Communications, that is, M2M communications scheme, improvements of the random access are necessary to prevent random channel overload. Enhanced backoff in the presence of overload is such a mechanism, Counting the number of devices seeking RACH based on the number of received random access requests or else responses, and allocating Random Access resources on the basis of the number of requests, is another. Further, a channel aware resource allocation approach provides a way of determining, from the received requests, delay-tolerance of the M2M devices, based on which they are prioritized in accessing the random channel. Even within the prioritized devices, a smaller subset thereof may be prioritized further, according to radio conditions, to provide better access to those with higher SNR RBs.


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