Patent ID: 8184609
Filing Date: 2012-05-22
Classification: H04B,H04W

Abstract:
1. A method comprising: defining a plurality of unique subband-sequence pairs by associating each of a plurality of random access orthogonal subbands with each of a plurality of random access sequence groups, each random access orthogonal subband comprising a plurality of subcarriers; allocating first and second subband-sequence pairs from the plurality of unique subband-sequence pairs to first and second subdivisions, respectively, in a wireless communication network; assigning the first subband-sequence pair to a first position in a first subframe for use in the first subdivision during a first transmission slot; assigning the second subband-sequence pair to a second position in the first subframe for use in the second subdivision during the first transmission slot; and frequency hopping the first and second unique subband-sequence pairs in a second subframe during a second transmission slot.