US 9,814,072 B2
Methods and devices for communicating on a radio channel based on jointly encoding a preamble format with random access configuration
Robert Baldemair, Solna (SE); and David Astely, Bromma (SE)
Filed by Optis Wireless Technology, LLC, Plano, TX (US)
Filed on Feb. 13, 2013, as Appl. No. 13/766,111.
Application 13/766,111 is a continuation of application No. 12/747,593, granted, now 8,553,590, previously published as PCT/SE2008/050934, filed on Aug. 20, 2008.
Claims priority of provisional application 61/013,051, filed on Dec. 12, 2007.
Prior Publication US 2013/0188534 A1, Jul. 25, 2013
Int. Cl. H04W 74/08 (2009.01); H04W 74/00 (2009.01)
CPC H04W 74/0833 (2013.01) [H04W 74/004 (2013.01)] 20 Claims
OG exemplary drawing
1. A method in a base station of an evolved UMTS Terrestrial Radio Access Network, E-UTRAN, operating in time divisional duplex, TDD, mode for transmitting data on a radio channel, the method comprising:
jointly encoding a preamble format with a first random access configuration, forming an extended random access configuration, wherein the first random access configuration comprises a combination of:
a density value defining a density of random access opportunities on a Physical Random Access Channel, PRACH; and
a version index defining one of several possible patterns of opportunities on the PRACH for that density, each pattern allocating opportunities to different sub-frames of the PRACH; and
transmitting the extended random access configuration on the radio channel.