Method and apparatus for enhancing signal-to-noise ratio of...

Details Method and apparatus for enhancing signal-to-noise ratio of... Method and apparatus for enhancing signal-to-noise ratio of...

2011-04-05

2011-04-05

Cho, Un C (Department: 2617)

Multiplex communications

Communication over free space

Combining or distributing information via time channels

C455S456100, C455S501000, C455S502000, C455S063100

Reexamination Certificate

active

07920544

ABSTRACT:
A method and apparatus for generating and use of a position location reference signal that allows a receiver to receive position location signals from relatively weak signal generators when in the presence of a strong signal source. The position location reference signals from multiple sources can be synchronized to occur within a scheduled time slot of a time division multiplexed communication system. During the scheduled time slot, each signal source can configure a transmission that includes a media access control address that corresponds to a value reserved for position location signals. Each signal source also configures the transmission to include a position location reference signal that corresponds to the signal source. The position location signals from each of the signal sources is positioned to occur at a time within the data portion of the scheduled time slot that no neighboring signal source transmits its corresponding position location signal.

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