Abstract:
Timing acquisition may be performed without typical correlation computations by determining a power of a received signal at certain points in time and using the determined power to identify gaps in the received signal. By determining gaps in the received signal, frame timing may be estimated, particularly in time-division networks where the location of guard periods within a frame is known. Gap detection may thus be used for timing acquisition.
Abstract:
Methods and apparatus for managing interference are described and may include updating a covariance inverse value of a linear function to remove an effect on the linear function of a first set of channels associated with a first network entity, wherein the first set of channels are cancelled in response to performing a first cancellation procedure. Methods and apparatus for managing interference may further include performing a second cancellation procedure to cancel a second set of channels associated with a second network entity based at least in part on the updated covariance inverse value of the linear function.
Abstract:
Timing acquisition may be performed without typical correlation computations by determining a power of a received signal at certain points in time and using the determined power to identify gaps in the received signal. By determining gaps in the received signal, frame timing may be estimated, particularly in time-division networks where the location of guard periods within a frame is known. Gap detection may thus be used for timing acquisition.
Abstract:
Implementations generally relate to ultrasonic communication between devices. In some implementations, a method includes receiving a data signal, where the data signal is transmitted and received in an indoor environment. The method further includes demodulating the data signal based on direct sequence spread spectrum.
Abstract:
The present disclosure provides a method for forming an uplink burst pulse in a communication system, including: a code channel weighting coefficient for each uplink code channel is configured, wherein the code channel weighting coefficient contains a weighting coefficient of at least one modulation mode; a data modulation symbol on each uplink code channel is weighted with the weighting coefficient corresponding to its modulation mode, to obtain a weighted data modulation symbol on each uplink code channel; the weighted data modulation symbol on each uplink code channel is accumulated, and a total uplink transmission power for an accumulation value of the weighted data modulation symbol is configured after performing pre-transmission processing for the accumulation value. Accordingly, the present disclosure provides an apparatus for forming an uplink burst pulse in a communication system, which includes a weighted data modulation symbol obtaining unit, a weighted data modulation symbol accumulation unit, a pre-transmission processing unit and a total uplink transmission power configuration unit. The present disclosure enables the forming of the uplink burst pulse supporting the high-order modulation with high peak-to-average ratio at a low cost.