WO2011100596A2

4G,3G,2G

Title

METHODS AND APPARATUS FOR OPTIMIZING UPLINK RANDOM ACCESS CHANNEL TRANSMISSION

Application Number:

WO2011US24607

Publication Date:

18-08-2011

Family ID:

Application Date:

11-02-2011

Declaring Company:

Publication Country:

US

Priority Date:

12-02-2010

Title

METHODS AND APPARATUS FOR OPTIMIZING UPLINK RANDOM ACCESS CHANNEL TRANSMISSION

Application Number:

WO2011US24607

Family ID:

Publication Country:

US

Publication Date:

18-08-2011

Application Date:

11-02-2011

Priority Date:

12-02-2010

Declaring Company:

Abstract  Abstract

Method and apparatus are disclosed for optimizing Random Access Channel (RACH) transmissions from wireless transmit/receive units (WTRUs) for multiple transmissions. A WTRU may initiate uplink transmission for a random access procedure using a configured time resource such that the uplink resources may be time shared by a plurality of WTRUs. The transmission time may be calculated on an absolute or relative basis. A backoff time may be applied before starting the uplink transmission. The backoff time may be WTRU-specific, WTRU group-specific, specified per access class and may be determined based on a priority basis. A scaling factor may be applied to the backoff time. A contention free allocation method may be used to determine the appropriate resource. The data may be transmitted with and without a preamble. The WTRUs may include machine type communication devices and may be grouped in accordance with a number of factors or characteristics.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.