The disclosure provides a method (400) for transmission coordination on a wireless backhaul path. The wireless backhaul path comprises at least a network node and its upstream node and downstream node. The method comprises, at the network node: determining (S410) a subframe allocation for transmissions to and from the network node; and transmitting (S420) to the downstream node an instruction to insert a Guard Period (GP) into a first subframe from the downstream node to the network node based on the determined subframe allocation, so as to avoid interference on the first subframe from a subframe immediately following the first subframe.

A method for controlling a cell state corresponding to whether to transmit a signal, on a subframe basis by an evolved Node B (eNB) in a wireless communication system is provided. The method includes determining a cell state of at least one subframe included in each of an N-th frame and an (N1)-th frame, and at the start of the N-th frame, transmitting to a user equipment (UE), information about cell states of all subframes belonging to the N-th frame and information about cell states of all subframes belonging to the (N1)-th frame.

A method for controlling a cell state corresponding to whether to transmit a signal, on a subframe basis by an evolved Node B (eNB) in a wireless communication system is provided. The method includes determining a cell state of at least one subframe included in each of an N-th frame and an (N1)-th frame, and at the start of the N-th frame, transmitting to a user equipment (UE), information about cell states of all subframes belonging to the N-th frame and information about cell states of all subframes belonging to the (N1)-th frame.

A method for controlling a cell state corresponding to whether to transmit a signal, on a subframe basis by an evolved Node B (eNB) in a wireless communication system is provided. The method includes determining a cell state of at least one subframe included in each of an N-th frame and an (N1)-th frame, and at the start of the N-th frame, transmitting to a user equipment (UE), information about cell states of all subframes belonging to the N-th frame and information about cell states of all subframes belonging to the (N1)-th frame.

The disclosure provides a method (400) for transmission coordination on a wireless backhaul path. The wireless backhaul path comprises at least a network node and its upstream node and downstream node. The method comprises, at the network node: determining (S410) a subframe allocation for transmissions to and from the network node; and transmitting (S420) to the downstream node an instruction to insert a Guard Period (GP) into a first subframe from the downstream node to the network node based on the determined subframe allocation, so as to avoid interference on the first subframe from a subframe immediately following the first subframe.

An apparatus and method for detecting a burst signal. The apparatus includes circuitry that concatenates a predetermined number of samples and transmits the samples to a first programmable memory tap of a predetermined number of programmable memory taps. For each memory tap, a corresponding partial correlation is computed. A normalized sum of all the partial correlations is multiplexed and transmitted to a predetermined number of multipliers. A peak of the burst signal is determined by computing a summation of the complex multiplications of each multiplier, wherein the determined peak corresponds to a start of the burst signal.

A device and method for estimating a bias in a frequency estimate of a received signal. Circuitry generates a first signal including a number of sample-blocks, wherein the first signal is shifted in frequency from the received signal by a first frequency shift. Based on the first signal, a second signal and a third signal are generated, by shifting a frequency of each of the samples of the first generated signal by a second frequency shift and a third frequency shift, respectively. For each generated signal, a variance for each sample-block is computed. An average variance of the computed sample-block variances is further calculated and a bias of the received signal is determined as one of the first frequency shift, the second frequency shift, and the third frequency shift, corresponding to the generated signal having the smallest calculated average variance.

A device and method for unwrapping phase samples of a burst signal. The device generates a set of vectors including phase samples. A first mean and a first variance of the vectors is computed, and a set of unwrapped phase samples of the burst signal are computed by rotating phase samples of the vector having a smallest first variance by a first rotation amount. The set of vectors is updated based on a new phase sample and a second mean and a second variance of the updated set of vectors is computed. Differences between unwrapped phase samples and a number of phase samples included in the vector having the smallest computed second variance are computed. A next unwrapped phase sample is generated by rotating the new phase sample by a second rotation amount corresponding to a median value of the computed differences.

Aspects of the disclosure relate to a method for determining a location of a first device. The method comprises receiving, by the first device, at least one first signal from at least one second device. The method further comprises determining, by the first device, estimated first signal properties of at least one first signal. Also, the method comprises generating, by the first device, at least one second signal based on at least a portion of the estimated first signal properties. Further, the method comprises transmitting, by the first device, at least one second signal to at least one third device. In one or more embodiments, estimated second signal properties of at least one second signal are determined by at least one third device. In at least one embodiment, the location of the first device is determined by utilizing at least a portion of the estimated second signal properties.

An orbiting multiple access transceiver communicates with terrestrial mobile stations which are also capable of communicating with terrestrial base stations. The multiple access transceiver is configured to sample a signal when a terrestrial mobile station of interest is not transmitting to produce a sample signal. The sample signal may be processed to produce an out-of-phase signal that may be applied to a signal when the terrestrial mobile station of interest is transmitting to produce a clearer signal from the terrestrial mobile station of interest.