Initial pilot frequency selection
AssigneeQUALCOMM Incorporated
InventorMichael Wang
Life of this patent
Estimating the term…
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.
Claims44
A method for facilitating data communication, comprising:
- obtaining a pilot staggering sequence for a pilot signal;
- and
- shifting an order of the pilot staggering sequence to mitigate collisions of the pilot signal with other pilot signals.
A system that facilitates data communication, comprising:
- a receiving component that receives at least one pilot staggering sequence for at least one pilot signal;
- and
- a sequence determination component that shifts an order of the pilot staggering sequence to decrease a probability of a collision of the pilot signal with another pilot signal.
A system that facilitates data communication, comprising:
- means for receiving at least one pilot staggering sequence for at least one pilot signal;
- and
- means for shifting an order of the pilot staggering sequence to mitigate collisions of the pilot signal with another pilot signal.
A data packet, transmitted between two or more communication components, that facilitates data communications, the data packet comprising, at least in part, information relating to an initial pilot staggering sequence interlace selected to mitigate pilot signal collisions.
A microprocessor that executes instructions for performing a method of facilitating data communications, comprising:
- obtaining a pilot staggering sequence for a pilot signal;
- and
- shifting an order of the pilot staggering sequence to mitigate collisions of the pilot signal with other pilot signals.
Dependencies are inferred from the claim text.