Abstract: A computer readable storage medium or media stores machine readable instructions that, when executed by one or more processors, cause the processors to generate, using reference signals received via a first communication channel from a first communication device to a second communication device, an estimate of the first communication channel using the received reference signals, calculate one or more transmit beamforming vectors using the estimate of the first communication channel, and utilize the one or more transmit beamforming vectors to process signals to be transmitted via a second communication channel from the second device to the first device. The first device processes the signals to be transmitted from the second device to the first device according to a model H ei, where H is a matrix representing the second communication channel and ei is a vector with all components of ei, except an ith component, being equal to zero.

Abstract: A device including a first transceiver and a second transceiver. The first transceiver is configured to selectively transmit and receive first signals in a first frequency band according to a schedule. The first signals include at least cellular signals. The second transceiver is configured to selectively transmit and receive second signals in a second frequency band different from the first frequency band. The second signals include at least WiFi signals. An arbiter is configured to generate status reports indicating statuses of channels in the first frequency band and/or the second frequency band, receive the schedule as generated based on the statuses, and selectively modify the status reports based on an expected transmission and/or reception of the first signals by the first transceiver, and/or an expected transmission and/or reception of the second signals by the second transceiver.

Abstract: A method includes performing a handover for a mobile device between first and second RAT networks. The first RAT network has a tracking area. The second RAT network has a routing area. Idle mode signaling reduction is activated in the mobile device including activating first and second timers respectively for the first and second RAT networks. In response to either one of the first and second timers expiring, a tracking or routing area update is sent to a first base station. The first base station is in the first RAT network or the second RAT network. The first timer is reset while the second timer maintains a set offset from the first timer. The tracking area update indicates that the mobile device has performed a handover to the first RAT network. The routing area update indicates that the mobile device has handed over to the second RAT network.

Abstract: A method includes receiving, at a communication terminal, signals from a group of cells that cooperate in a Coordinated Multipoint (CoMP) transmission scheme. Signaling that specifies a CoMP resource management (CRM) set is received at the communication terminal. The CRM set includes a subset of the cells in the group for which the communication terminal is to perform signal measurements. A size of the CRM set is restricted to a predefined maximum size. The signal measurements are performed at the communication terminal only on the signals received from one or more of the cells in the CRM set. The signal measurements performed on the one or more of the cells in the CRM set are reported from the communication terminal.

Abstract: Systems, methods, apparatus, and techniques are provided for retransmitting packets of data. A Radio Link Control (RLC) layer data packet is generated, and the RLC layer data packet is converted to one or more physical (PHY) layer data packets. The one or more PHY layer data packets are transmitted. At least one of a hybrid automatic transmission request (HARQ) acknowledgement (ACK) message and a HARQ negative acknowledgment (NACK) message is received from a receiver in response to transmission of the one or more PHY layer data packets. It is determined whether the at least one of the HARQ ACK message and the HARQ NACK message represents a automatic transmission request (ARQ) ACK message or a ARQ NACK message.

Abstract: In a method for transmitting control signals in a multicast communication system, wherein the multicast communication system broadcasts one or more multicast channels, one or more occurrences of a first control signal are transmitted. The first control signal includes at least control information corresponding to the one or more multicast channels. Additionally, one or more occurrences of a second control signal are transmitted for each of the one or more multicast channels. The second control signal includes at least control information corresponding to the respective multicast channel. At least one transmission of an occurrence of the second control signal is synchronized with at least one transmission of an occurrence of the first control signal.

Abstract: The present disclosure describes techniques for avoiding interference among multiple radios. In some aspects a communication channel of a first wireless interface of a device is determined to be adjacent to a frequency band in which a second wireless interface of the device is configured to communicate and channel measurement results are altered prior to transmission by the first wireless interface to a base station, effective to prevent the base station from selecting, for use by the first wireless interface, the channel adjacent to the frequency band of the second wireless interface.

Abstract: A method, implemented by one or more processors, for scheduling traffic streams in a communication network includes determining, via a processor, a plurality of sets of one or more cell characteristics. Each set of cell characteristics in the plurality of sets of cell characteristics corresponds to a different cell in a plurality of cells. The method also includes determining, via a processor, a first set of one or more traffic characteristics corresponding to a first traffic stream, selecting, via a processor, a first cell from the plurality of cells based on (i) the plurality of sets of cell characteristics and (ii) the first set of traffic characteristics, and assigning, via a processor, the first traffic stream to the first cell for an entire duration of the first traffic stream.

Abstract: Systems, methods, apparatus, and techniques are provided for transmitting information to user equipment (UE) in a communications network. Data is generated in (i) a first frequency range associated with a first set of carriers and (ii) a second frequency range associated with a second set of carriers, where the first frequency range specifies a first communications cell and the second frequency range specifies a second communications cell. The first cell is assigned as a primary cell to a first set of UEs in the communications network. Control data is transmitted to both the first set of UEs and a second set of UEs using at least a portion of the first set of carriers.

Abstract: In a method implemented in a communication device, an interference metric associated with a communication link is determined. Determining the interference metric includes obtaining a plurality of measurements indicative of quality of the communication link, and calculating the interference metric using (i) a mean of the plurality of measurements and (ii) a standard deviation of the plurality of measurements. A modulation and coding scheme is selected based on at least the interference metric, and at least one packet is caused to be modulated and coded according to the selected modulation and coding scheme prior to transmission over the communication link.

Abstract: Systems and techniques relating to wireless communications are described. A described technique includes receiving, at a wireless communication device, a signal that is based on produced signals, the produced signals being produced via different respective constellations; detecting a first signal from the received signal based on a combined constellation of the respective constellations; removing a signal contribution of the first detected signal from the received signal to produce a modified received signal; and detecting a second signal from the modified received signal. Removing the signal contribution can include using a constituent constellation of the respective constellations, the constituent constellation being associated with the first detected signal.

Abstract: A mobile station including an estimation module, a filter module, and a control module. The estimation module is configured to generate first channel estimates based on an input signal received, through a channel, from a base station. The input signal includes subcarriers used by the base station to transmit preamble sequences. The filter module is configured to generate second channel estimates by filtering the first channel estimates using a first filter or a second filter. The first filter or the second filter is selected according to a number of the subcarriers used to transmit the preamble sequences. The control module is configured to, based on the first channel estimates and the second channel estimates, estimate (i) one of the preamble sequences and (ii) the channel.

Abstract: Systems, methods, and other embodiments associated with scheduling of measurement gaps and on-duration intervals for a wireless station are described. According to one embodiment, a controller for controlling a station that wirelessly communicates with a base station is disclosed. The station is within a wireless range of the base station and one or more neighboring stations. The controller includes a scheduling logic configured to control the station, while the station is in an idle mode, to receive control information from the base station by scheduling a period of time for an on-duration interval. The scheduling logic is configured to control the station to listen to the one or more neighboring stations by scheduling a period of time for a measurement gap. The measurement gap is scheduled to avoid overlapping with the on-duration interval.

Abstract: Apparatus having corresponding methods and computer-readable media comprise: a transmitter configured to transmit, according to a first protocol, first wireless signals in a first frequency band; and a receiver configured to receive, according to a second protocol, second wireless signals in a second frequency band, wherein the second frequency band is adjacent to or overlaps the first frequency band; and an arbiter configured to allow the transmitter to transmit the first wireless signals according to the first protocol while the receiver receives the second wireless signals according to the second protocol responsive to at least one of i) a signal power level of the first wireless signals being less than a first signal power threshold; and ii) a signal power level of the second wireless signals being greater than a second signal power threshold.

Abstract: In a method of assigning cell reselection parameters to be utilized by user devices served by a first cell associated with a first tracking area, that a first signal frequency is associated with a second tracking area different than the first tracking area is determined. Based on a determination that the first signal frequency is associated with the second tracking area different than the first tracking area, a first set of one or more reselection parameters is assigned to the first signal frequency.

Abstract: A computer-readable medium stores instructions causing one or more processors to demodulate a received signal including a plurality of user signals. Respective user data in each of at least some of the plurality of user signals is encoded with a respective finite state machine encoder having a respective number of states Si, wherein i=1, 2, . . . , N, N being the number of users, and wherein at least a first user signal and a second user signal are encoded independently of each other. The instructions cause the processor(s) to calculate distances between transmit symbols in the received signal and an expected joint symbol value, and jointly decode, with a finite state machine decoder, user data in the demodulated received signal, including at least first user data corresponding to the first user signal, based on the calculated distances. The finite state machine decoder has S1*S2* . . . *SN states.

Abstract: Communication circuitry that employs persistent scheduling conventionally uses one initiation command to establish the modulation and coding scheme (“MCS”) that will be used for transmission of subsequent payload bursts, at least until it is time to send another initiation command. Inefficiency can result if transmission channel conditions change between initiation commands. To avoid such inefficiency, the disclosed circuitry maintains a count of unsuccessful transmission attempts. When the count deviates from a predetermined reference standard, the circuitry automatically and autonomously makes an appropriate change in the MCS selection without waiting for the next initiation command. Both transmitter and receiver circuits independently operate in the same way at the same time so that both ends of a communication link remain coordinated with one another.

Abstract: Methods and apparatus are provided for directing a beam towards a receiving device in the presence of interference. A beam transmitted by a transmission source is received at a receiving device. The received beam is affected by an interference signal from an interfering source. The receiving device computes a covariance matrix that represents a channel estimate associated with the interfering source. The receiving device modifies a predetermined sounding signal based on the covariance matrix for transmission to the transmission source. The receiving device causes the transmission source to estimate an equivalent channel matrix based on the predetermined sounding signal and the modified predetermined sounding signal. The equivalent channel matrix represents the channel estimate associated with the interfering source and a channel estimate associated with the transmission source.

Abstract: A system including a first receiver to receive a first signal including a first set of codewords and to generate a first set of decoded codewords by decoding one or more codewords of the first set of codewords. A first interference canceller measures first reliability metrics of codewords corresponding to the first set of decoded codewords and selects a second set of decoded codewords from the first set of decoded codewords based on the first reliability metrics. An encoder generates an encoded signal by encoding the second set of decoded codewords. A modulator generates a second signal by modulating the encoded signal. A subtractor subtracts a portion of the second signal from the first signal to cancel interference of first codewords corresponding to the second set of decoded codewords on codewords other than the first codewords in the first set of codewords in the first signal.

Abstract: Systems, methods, and other embodiments associated with a quality of service (QoS) aware channel quality indicator (CQI) are described. In one embodiment, an apparatus includes determination logic configured to receive a request for a CQI. A QoS associated with a wireless channel on which to base the CQI is determined. The determination logic is further configured to compute the CQI based, at least in part, on the determined QoS.