Abstract: An apparatus and a method for detecting data transmitted over a wireless channel are disclosed. For example, for each receive antenna of a plurality of receive antennas, the method converts, by an ADC, an analog signal received by the receive antenna to a respective digital signal, and for each receive antenna of the plurality of receive antennas, the method channel transforms, by a channel transformer, the digital signal to determine a respective equivalent integer representation of the digital signal, and the method detects data by receive combining, by a receive combiner, the respective equivalent integer representations of the digital signals determined for the plurality of receive antennas.

Abstract: An apparatus and a method for detecting data transmitted over a wireless channel are disclosed. For example, for each receive antenna of a plurality of receive antennas, the method converts, by an ADC, an analog signal received by the receive antenna to a respective digital signal, and for each receive antenna of the plurality of receive antennas, the method channel transforms, by a channel transformer, the digital signal to determine a respective equivalent integer representation of the digital signal, and the method detects data by receive combining, by a receive combiner, the respective equivalent integer representations of the digital signals determined for the plurality of receive antennas.

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system, such as long term evolution (LTE). To support multiple access, a method for operating a terminal is provided. The method includes sending at least one first reference signal over a first resource which supports orthogonal multiple access with at least one other terminal, sending at least one second reference signal over a second resource which supports non-orthogonal multiple access (NOMA) with the at least one other terminal, and sending a data signal according to the NOMA with the at least one other terminal.

Abstract: Uplink data indication transmission(s) are received over a subband and over OFDM symbol(s) from STA(s) in a wireless communication system. The received uplink data indication transmission(s) are decoded to determine a unique codeword for each of the STA(s). From the determined unique codewords and using a mapping between station IDs and codewords in a codebook, a unique station ID is determined for each of the STA(s). For STA(s) determined to have sent the uplink data indication, other operations are performed to prepare for subsequent reception of uplink data from the STA(s) determined to have sent the uplink data indication.

Abstract: This disclosure describes methods and devices related to self-interference cancellation. A device is disclosed comprising: at least one memory storing computer-executable instructions; and at least one processor configured to access the at least one memory, wherein the at least one processor may be configured to execute the computer-executable instructions to cause to send at least one first symbol sequence at least twice on a first transmit chain and at least one second symbol sequence twice on a second transmit chain. The processor may be configured to execute the computer-executable instructions to determine at least one third symbol sequence at least twice on a first receive chain and at least one fourth symbol sequence at least twice on a second receive chain.

Abstract: An access point in a random access wireless network is presented, which performs medium access control for transmissions from a plurality of stations to the access point using a carrier sense multiple access protocol. The CSMA protocol is based on the access point having a variable sensitivity level to detecting other transmissions on a wireless channel in order to avoid data collisions. In a dense network environment, the sensitivity level can be reduced to avoid detecting transmissions to other access points, and thus improve area efficiency.

Abstract: Uplink data indication transmission(s) are received over a subband and over OFDM symbol(s) from STA(s) in a wireless communication system. The received uplink data indication transmission(s) are decoded to determine a unique codeword for each of the STA(s). From the determined unique codewords and using a mapping between station IDs and codewords in a codebook, a unique station ID is determined for each of the STA(s). For STA(s) determined to have sent the uplink data indication, other operations are performed to prepare for subsequent reception of uplink data from the STA(s) determined to have sent the uplink data indication.

Abstract: A technique for setting the transmission powers of individual D2D (device-to-device) transmitters using a distributed power control technique is described. Each individual D2D transmitter learns the interference levels that it imposes on an eNB (evolved Node B) and on D2D receivers other than its partner D2D receiver. The D2D transmitter is then able to adjust its transmission power accordingly. Such managing of interference temperature via distributed power control enables the network to maximize its reuse of time-frequency resources.

Abstract: Described are techniques for managing the interference produced by D2D (device-to-device) transmissions that may be used in conjunction with transmit power control but operate independently. In one technique, interference between D2D transmissions and cellular uplink transmissions using common resources as received at a base station is managed by opportunistic interference alignment and clustering of D2D devices. In another technique, interference between different D2D devices using the same resources is mitigated by base-station aided space-time interference alignment.

Abstract: Described are techniques for managing the interference produced by D2D (device-to-device) transmissions that may be used in conjunction with transmit power control but operate independently. In one technique, interference between D2D transmissions and cellular uplink transmissions using common resources as received at a base station is managed by opportunistic interference alignment and clustering of D2D devices. In another technique, interference between different D2D devices using the same resources is mitigated by base-station aided space-time interference alignment.

Abstract: A technique for setting the transmission powers of individual D2D (device-to-device) transmitters using a distributed power control technique is described. Each individual D2D transmitter learns the interference levels that it imposes on an eNB (evolved Node B) and on D2D receivers other than its partner D2D receiver. The D2D transmitter is then able to adjust its transmission power accordingly. Such managing of interference temperature via distributed power control enables the network to maximize its reuse of time-frequency resources.

Abstract: A communication device and a mobile station to perform interference alignment, and an interference alignment method are provided. Interference alignment may be performed to enable an interference signal, received in a mobile station, to be removed using channel information fed back from the mobile station.

Abstract: A base station with multiple antennas including a relay scheduler to select a serving relay from a plurality of candidate relays. Each candidate relay may have a user group including at least one user. The selection may be based on an achievable transmission capacity of each candidate relay with respect to its user group and a state of channels formed between the plurality of candidate relays and the base station. The base station also includes a transmission signal generator to generate a transmission signal for the user group corresponding to the serving relay.

Abstract: Disclosed is a data transmission system that transmits data using a relay. During a first time slot, a base station may transmit base station data to the relay, and a mobile station may transmit mobile station data to the relay. During a second time slot, the relay may transmit the mobile station data to the base station, and transmit the base station data to the mobile station.

Abstract: A communication device and a mobile station to perform interference alignment, and an interference alignment method are provided. Interference alignment may be performed to enable an interference signal, received in a mobile station, to be removed using channel information fed back from the mobile station.

Abstract: Disclosed is a data transmission system that transmits data using a relay. During a first time slot, a base station may transmit base station data to the relay, and a mobile station may transmit mobile station data to the relay. During a second time slot, the relay may transmit the mobile station data to the base station, and transmit the base station data to the mobile station.

Abstract: A base station with multiple antennas including a relay scheduler to select a serving relay from a plurality of candidate relays. Each candidate relay may have a user group including at least one user. The selection may be based on an achievable transmission capacity of each candidate relay with respect to its user group and a state of channels formed between the plurality of candidate relays and the base station. The base station also includes a transmission signal generator to generate a transmission signal for the user group corresponding to the serving relay.