Initial pilot frequency selection

Details Initial pilot frequency selection Initial pilot frequency selection

2011-08-30

2011-08-30

Moe, Aung S (Department: 2474)

Multiplex communications

Generalized orthogonal or special mathematical techniques

Particular set of orthogonal functions

Reexamination Certificate

active

08009551

ABSTRACT:
The subject invention selects a starting sub-carrier frequency group for a pilot staggering sequence to facilitate in mitigating the possibility of pilot signal collisions. In one embodiment, a randomized starting sub-carrier frequency group of the pilot is utilized in a first orthogonal frequency division multiplexing (OFDM) symbol of a frame. In another embodiment, a starting pilot sub-carrier frequency group number is determined by utilizing a random number generator such as, for example, a Pseudo-Noise (PN) sequence generator, seeded by a network identification (ID) number. In this manner, the starting sub-carrier frequency group is specific to that particular network. The subject invention also provides a more scalable system through the trading of system bandwidth for coverage.

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