Abstract: Reverse link interference can be controlled by utilizing a dynamic and changeable IoT setpoint, which is a quantitative measurement of total interference received at a base station. The interference can occur when a mobile device in an adjacent sector is communicating over the reverse link. The IoT setpoint can be changed based on conditions occurring in the sector and/or scheduling information for the future. A fast up indicator (Up+) can be transmitted for reverse link interference, which allows the receiving device to take advantage of the fact that additional interference created will not affect the sector. An interference control action can be transmitted in an Other Sector Interference Bit (OSIB) channel over the air or over the backhaul. The interference control action can be determined as a function of the dynamic IoT setpoint.

Abstract: A user equipment (UE) antenna tuner control system and method that utilize a base transceiver station (BTS) inner power control loop, and in particular utilize a Node-B inner power control loop, are provided. The UE antenna tuner control system and method of the present disclosure include an antenna impedance matching algorithm and a power amplifier (PA) input drive control that are digitally controlled by the BTS. Therefore, each UE having a digitally controllable antenna tuner unit (ATU) and operating within a network that is controllable by the BTS will have increased power efficiency.

Abstract: A method, device and system are used for transmitting a Multimedia Broadcast Multicast Service (MBMS). The method includes sending, by a first base station, a service identifier of a MBMS that needs to be received by a user equipment in a coverage area of the first base station to a gateway. The first base station receives a data packet of the MBMS and a synchronization control packet on a first multicast channel which are sent by the gateway. The first multicast channel is a multicast channel where the MBMS is located.

Abstract: A method is provided for dynamically updating the fractional power control (FPC) parameters of a wireless network such as an LTE network, so that system performance can be improved in a variety of different loading conditions, particularly under conditions of moderate or light loading. An exemplary embodiment includes obtaining a current value of a time-varying uplink interference figure for at least one individual sector s. For at least one such sector s, a value is selected for at least one FPC parameter, thereby to determine a dependency of the target SINR {circumflex over (?)}(k,s) on the path loss ?(k,s) for each UE k in sector s for which {circumflex over (?)}(k,s) falls between a maximum target {circumflex over (?)}max and a minimum target {circumflex over (?)}min. The selecting step is responsive to the obtained interference figure, such that at least one FPC parameter.

Abstract: Methods and apparatus of wireless communication include receiving channel information and performing a first network activity estimation using at least a portion of the channel information. The first network activity estimation provides a first network activity indication. Moreover, the methods and apparatus include performing a second network activity estimation using at least another portion of the channel information. The second activity estimation provides a second network activity indication. Also, the method and apparatus include aggregating the network activity indications.

Abstract: A method for two component feedback in wireless communication systems is disclosed, with a wireless communication device sending a first representation of a first matrix chosen from a first codebook, wherein the first matrix has at least two columns, the wireless communication device sending a second representation of a second matrix chosen from a second codebook, and the base station obtaining a precoder from the first representation and the second representation.

Abstract: Systems, methods, and computer-readable media for modifying signals are provided. Embodiments include staged low noise amplifiers (LNA's) in order to customize signal modification. Signals may be modified at various fixed gains by different LNA's within a device. Additionally, signals may be attenuated or receive no modification at all in order to ensure signals are within a preferred signal range.

Abstract: Embodiments herein relate to a method in a base station (12) for providing feedback to a user equipment (14) for transmissions of a secondary stream out of a primary and a secondary stream of the user equipment (14) in an uplink Multiple Input Multiple Output mode. The base station (12) transmits to the user equipment (14), a preferred transmission rank and an offset for the secondary stream in a channel, wherein the offset is to be used by the user equipment (14) when deciding transport block size of the secondary stream and the preferred transmission rank is to be used by the user equipment (14) when deciding a transmission rank.

Abstract: A packet recovery method of the present invention is a packet recovery method upon loss of a plurality of packets transmitted from a first node 111 to second node 112 through a network in the order of sequence numbers assigned to each of said packets, wherein second node 112, upon detection of a loss of a packet transmitted from first node 111, transmits an acknowledgement message, including a sequence number of a packet whose receipt has been confirmed or whose loss has been detected and including information on the lost packet, to first node 111 through the network.

Abstract: A method and communication unit for power control in a wireless broadcast communication system that includes a plurality of communication cells, with broadcast content being routed from a base station to at least one wireless communication unit via at least one relay node (RN). The method includes, at the base station: broadcasting the broadcast content from the base station to at least one RN; receiving from the at least one RN an indication of signal quality of the broadcast content as received at the at least one RN; and adjusting a transmit power level of a broadcast transmission of broadcast content in response to the indication.

Abstract: Methods, systems, and devices are described for managing power consumption in a modem of a mobile device. A receive power associated with a receiver of the modem may be measured during a scheduled power-up of the modem associated with checking for paging messages. A power consumption metric associated with transmitting a pending wireless data transaction at a transmitter of the modem may then be estimated based on the measured receive power associated with the receiver. A determination of whether to transmit the pending wireless data transaction at a first time may then be made based at least in part on the estimated power consumption metric.

Abstract: A satellite communication system includes a hub and one or more terminals, wherein the one or more terminals may be configured to communicate over a satellite with the hub using a segment of the satellite's resources and using a single channel per carrier (SCPC) access scheme. Methods are presented herein for facilitating the dimensioning of at least a power characteristic of said space segment using a Demand Assignment Multiple Access approach and for enforcing the dimensioned power characteristic in real-time, or substantially in real-time. Also presented are methods for allocating power to SCPC carriers, wherein a maximum power level for a carrier may be determined using a DAMA technique.

Abstract: Systems and methods are provided for encrypting a data transmission from a base station at the physical layer, such that the data transmission can only be decoded successfully by an intended UE. In an embodiment, a desired signal component, including a data signal for an intended UE, is combined with an interference component to generate a signal for transmission. The interference component is designed such that it falls in a null space of the channel from the base station to the intended UE and is therefore not received by the intended UE. In contrast, for an unintended UE, the interference component is designed to interfere with the desired signal component at the unintended UE, preventing the unintended UE from successfully decoding the data transmission.

Abstract: A method, system, base station and wireless terminal are provided for transmission of a set of mixed pilots that includes both common and dedicated pilots. The method includes selecting a number D of dedicated pilots having regard to performance of the communication link, D?0, selecting a first pre-coder for pre-coding D dedicated pilots based on some criteria, performing a first pre-coding of the D dedicated pilots with the first pre-coder to produce a set of pre-coded dedicated pilots, performing a second pre-coding of the set of pre-coded dedicated pilots and a set of common pilots to produce a set of mixed pilots, and transmitting data from the transmitter on the communication link with the set of mixed pilots.

Abstract: Connected-mode discontinuous reception (C-DRX) cycle scaling by a wireless user equipment (UE) device. The UE may establish a connection with a network via a wireless link, which may operate according to LTE. The UE may communicate with the network via the wireless link using C-DRX over a plurality of C-DRX cycles. Each C-DRX cycle may include a period of time during which the UE operates in a reduced-power state and a scheduled on-duration period of time. An indication may be received to remain in the reduced-power state during the scheduled on-duration period of time of at least one C-DRX cycle. The UE may remain in the reduced-power state during the scheduled on-duration period of time of at least one C-DRX cycle in response to the indication.

Abstract: An electronic device may utilize or support adaptive traffic management in a resource-constrained network. The adaptive traffic management may comprise applying a multi-stage filtering to packets received by the electronic device, wherein each stage of the multi-stage filtering may comprises a validation check and a failure of any validation check of any stage when handling a packet terminates the handling of the packet. The adaptive traffic management may comprise apply an adaptive search function, whereby when the number of search responses received by the electronic device exceeds a particular maximum response threshold, one or more criteria for modifying search requests may be selected, to reduce number of expected search responses, and the modified search criteria may be applied to generated modified search command(s) that are applied in the search function.

Abstract: The present invention relates to a method for communicating in a network having a primary station and a plurality of secondary stations, said method comprising a step of, at the primary station, (a) configuring at least one downlink channel from the base station to a first secondary station, step (a) comprising (a1) signalling a first set of at least one parameter indicative of precoding applied to a first transmission from the base station to the first secondary station; (a2) signalling a second set of at least one parameter indicative of precoding applied to a second transmission from the base station to at least one second secondary station, wherein said step (a2) is carried out so that the second set of parameters contains less information than the first set of parameters.

Abstract: The disclosure relates to controlling uplink transmissions according to closed loop multi-antenna techniques such as closed loop uplink transmit diversity and uplink multiple-input multiple-output (MIMO). An exemplary method for use in a user equipment (81) configured for multi-antenna transmissions comprises a step of estimating (62) reception quality of a physical channel carrying pre-coding weight information to the user equipment (61). The method further comprises a step of determining (64) that the reception quality of the physical channel is inferior if the estimated reception quality is below a threshold and otherwise considering (65) the reception quality of the physical channel to be sufficient, in a further step the UE (61) applies (52) the pre-coding weight information received on the physical channel for uplink transmission only if the reception quality of the physical channel is considered to be sufficient.

Abstract: When enabled with common reference signal interference cancellation, a user equipment (UE) may still compute a channel state feedback value with consideration of any canceled interfering neighboring signals. When the neighboring cells are determined to be transmitting data during the time for which the channel state feedback value is being computed, the UE is able to derive the channel state feedback value considering those canceled interfering signals. The UE determines whether each neighboring cell is transmitting during the designated time either by obtaining signals that indicate the transmission schedule of the neighboring cells or by detecting the transmission schedule, such as based on the power class of the neighboring cells. If the UE determines that the neighboring cells are transmitting data during this time period, the UE will compute the channel state feedback value including consideration of the canceled interfering signals.

Abstract: According to one embodiment, a wireless communication apparatus includes a generation unit, a control unit, a transmission unit, a reception unit and an analysis unit. The control unit sets, as a first value, a magnitude of a transmission power of the first frame, and sets, as a second value smaller than the first value, a magnitude of a transmission power of the second frame. The transmission unit transmits the first frame at a first time interval until an acknowledgement frame is received, and transmits the second frame at a second time interval until an accept frame is received. The analysis unit analyzes the request transmission power information. The control unit determines a transmission power of a data frame based on the request transmission power information.

Abstract: A communications apparatus is provided. A radio module transmits first packets before establishing a connection with a peer communications device. A transmission power utilized for transmitting the first packets is adjustable, so that multiple levels of transmission power are utilized for transmitting the first packets.

Abstract: A method provide a selection option to the at least one portable device, the selection option relating to selection of the first audio content and retrieving a selection from the at least one portable device based on the selection option. The method further retrieves a selection of the second audio content and synchronizing the first audio content, the second audio content, and the video content by embedding a synchronizing signal in the first audio content, the second audio content, and the video content. The method further outputs the second audio content and the video content to an output device according to the synchronizing signal. Responsive to the selection of the first audio content, the first audio content with the embedded synchronizing signal is transmitted to the least one portable device, wherein the at least one portable device outputs the first audio content according to the synchronizing signal.

Abstract: A determination unit of a transmission apparatus determines a transmission timing of notice data (SR) for informing a reception apparatus that the event data has been transmitted according to a transmission state of the event data. An transmission unit transmits the SR at the timing determined by the determination unit.

Abstract: A PDMA terminal (1000) establishes communication by forming a plurality of spatial paths to another single radio apparatus. A plurality of antennas constituting an array antenna are divided into a plurality of subarrays corresponding to the plurality of spatial paths respectively. An adaptive array processing unit (USP) can perform an adaptive array processing for each of the plurality of subarrays. A memory (MMU) stores in advance information on the number of antennas associated with the number of spatial paths that can be formed by the array antenna. A control unit (CNP) controls a processing to transmit possible multiplicity information to another radio apparatus at a prescribed timing.

Abstract: Radio resources like spreading codes and transmission power are optimally allocated to various different types of radio channels supported in the cell including a specialized channel like a high-speed shared channel. One or more measurements made at the base station are provided to the radio resource manager. Such measurements include other-channel power, high speed shared channel code usage, high speed shared channel transport format usage, average active load on the high speed shared channel, empty buffer, excess power, and similar parameters that relate to a high speed shared channel. One or more of these reported measurements may then be used to access, allocate, and/or regulate resources associated with the base station's cell.

Abstract: A MIMO beamforming method comprises receiving at a base station information regarding a difference between an ideal beamforming matrix and an averaged beamforming direction, using the information to construct a beamforming matrix at the base station, and performing a beamforming operation using the reconstructed beamforming matrix. Alternatively, the method comprises computing at a subscriber station an averaged beamforming direction, computing at the subscriber station a quantization index corresponding to a differential matrix in a differential codebook, and transmitting the quantization index across a wireless channel of the wireless network. The differential codebook may be constructed by identifying a codebook center and transforming a predefined codebook that is stored in a memory of a component of the wireless network.

Abstract: It is provided a wireless communication system, which secondarily uses the same frequency as a primary system using, the wireless communication system comprising a mobile terminal and a base station. The mobile terminal detects a signal having the frequency; and requests, in a case where a broadcast signal transmitted from the base station is undetectable, the base station to increase a transmission power to a range that a signal does not reach a service area of the primary system, based on a location of a wireless transmitter of the primary system, a location of the base station of the wireless communication system, and a location of the mobile terminal of the wireless communication system. The base station increases the transmission power to the range that the signal does not reach the service area of the primary system in case of receiving the request to increase the transmission power.

Abstract: A transmitting method and transmission system using the same is applied to selectively use a space block-coding module to transmit a transmitted data. Each data stream of the transmission data is transmitted using the transmitting paths, and the transmission qualities of the transmitting paths are detected to decide whether the space-block encoding module works or not.

Abstract: Methods and apparatus of controlling user equipment transmit power in a wireless communication system include communicating with a first base station and a second base station. Further, the methods and apparatus include establishing a high speed channel with one of the first base station or the second base station, wherein the one of the first base station or the second base station defines a high speed serving cell and a remaining one of the first base station or the second base station defines a non-high speed cell. Additionally, the methods and apparatus include ignoring a transmit power control command from the non-high speed cell when a high speed power control state applies to controlling a transmit power level.

Abstract: A shared signaling channel can be used in an Orthogonal Frequency Division Multiple Access (OFDMA) communication system to provide signaling, acknowledgement, and power control messages to access terminals within the system. The shared signaling channel can be assigned to a predetermined number of sub-carriers within any frame. The assignment of a predetermined number of sub-carriers to the shared signaling channel establishes a fixed bandwidth overhead for the channel. The actual sub-carriers assigned to the channel can be varied periodically, and can vary according to a predetermined frequency hopping schedule. The amount of signal power allocated to the signaling channel can vary on a per symbol basis depending on the power requirements of the communication link. The shared signaling channel can direct each message carried on the channel to one or more access terminals. Unicast messages allow the channel power to be controlled per the needs of individual communication links.

Abstract: Methods and apparatus are provided for transmitting and receiving a control signal. Indices of Resource Block (RB) sets are transmitted through higher layer signaling. Downlink Control Information (DCI) generated in a short DCI format is transmitted from a Base Station (BS) to a terminal. The DCI includes a first index indicating an RB set having at least one allocated RB and a second index indicating the at least one allocated RB. The terminal determines whether short DCI format is configured to be used. When the short DCI format is configured to be used, the first index and second index are received. The terminal communicates through the at least one allocated RB identified by the first and second indices.

Abstract: Two or more base stations among a plurality of base stations transmit data of the same content at the same timing. A base station notifies a mobile station of two or more base stations which transmit the data of the same content among the plurality of base stations. The mobile station transmits information indicating reception conditions in the mobile station of radio signals from the base stations notified of, to the base station. According to the information indicating the reception conditions, the base station instructs the mobile station to receive the data of the same content from the base stations.

Abstract: The estimated gain profile of an amplifier can be modified during operation of the amplifier utilizing detected values of the amplification level of signals produced by the amplifier. The amplification levels can be detected at a location that is remote from the amplifier. New expected amplification levels can be determined for corresponding control signal values in the estimated gain profile. Digital filtering such as Kalman filtering can be used to determine the new expected amplification levels. The estimated gain profile can be modified with the new expected amplification levels.

Abstract: A wireless station device determines whether a carrier to noise ratio of a vertical polarization wave is lower than a first threshold value, determines that a present modulation method for the vertical polarization wave is to be changed to another modulation method having a small multilevel number when the carrier to noise ratio of the vertical polarization wave is lower than the first threshold value, and transmits modulation method information to the facing wireless station device. Further, the facing wireless station device transmits a radio signal to the wireless station device using the modulation method indicated by the received modulation method information for the vertical polarization wave.

Abstract: A method for controlling an output of a small base station in a mobile communication system is provided. The method includes measuring Received Signal Strength Indication (RSSI) and receive sensitivity of at least one of a macro base station and a neighboring small base station, determining a service margin of the small base station, and determining transmission power based on the RSSI, the receive sensitivity and the service margin. The method may further include extracting the receive sensitivity of the neighboring small base station from the measured receive sensitivity, calculating the RSSI of the macro base station from total RSSIs based on a receive sensitivity ratio of the neighboring small base stations prior to determining the service margin.

Abstract: Adjustment of a downlink transmit power parameter, such as a ceiling level, is disclosed. Signal-to-noise type information and committed power information can be employed to determine the ceiling level adjustment. A ceiling level can be a predetermined cap on transmission power for downlink channels between a user equipment and a base station. Where there is sufficient headroom in total transmission power and a power level greater than the predetermined ceiling can be effective, the ceiling can be adjusted to greater values than the predetermined value. Where total transmission power is more committed, ceiling adjustment can be prevented. Further, where there is no adequate benefit from increasing the ceiling, the adjustment of the ceiling can be prevented. While some instances can result in optimized transmission levels below the ceiling, instances can also be accommodated where the ceiling is to be increased.

Abstract: Methods and apparatus for location-based control of parameters such as radio frequency (RF) transmission characteristics of a wireless device. In one embodiment, a determination of a maximum allowable level for a given characteristic associated with the location of the wireless device is made, and the transmission characteristic of the wireless device is adjusted based at least in part on this maximum allowable level. The location may correspond to a regulatory domain with specific requirements for wireless transmitters. A database is referenced to retrieve these requirements. The maximum allowable levels are derived from the requirements. Thus, exemplary wireless devices are capable of universal regulatory compliance.

Abstract: One embodiment provides a network device that includes PHY circuitry comprising transmit circuitry (Tx) and receive circuitry (Rx), wherein the Tx and Rx circuitry are configured to be coupled to a respective channel to communicate with an external device via the channels, wherein the network device configured to communicate with the external device using an Ethernet communications protocol; and test circuitry.

Abstract: A transceiver and a method of transmitting data are provided. A frequency band, such as a licensed frequency band, is monitored during a sensing block. Based upon the use of the frequency band during the sensing block, a probability of non-interfering is calculated during a plurality of time periods in a subsequent inter-sensing block. The probability of non-interfering is used by the transceiver to determine a transmit power level such that the possibility of interference with licensed use on the frequency band is reduced. Embodiments of the present invention may be used to improve the transmission rate of the cognitive radio user.

Abstract: A communication system and method are provided for discovering wireless client devices within a local area network. A discovery message may be broadcast to a plurality of access points via a select access point to discover an access point. A response may be received from the discovered access point that may report a presence of a particular wireless client device located within a coverage area of the discovered access point. A status of the particular wireless client device may then be requested from the discovered access point.

Abstract: Methods and apparatus' of determining radio link quality are disclosed. According to various implementations, information indicating the time-frequency blocks to be monitored by a UE to enable the UE to locate a control channel is determined. The UE receives configuration information regarding resources used by a channel state information reference signal. It also receives configuration information regarding an interference measurement resource, as well as a channel state information reference signal. The channel state information reference signal uses the channel state information reference signal resources. A synchronization condition is determined based on the time frequency blocks to be monitored by the UE, the received channel state information reference signal and the interference measurement resource. The determined synchronization condition is sent to a higher layer.

Abstract: In a mobile communication system of the present invention, a base station apparatus and mobile station apparatus (user device) communicate each other on a plurality of downlink component carriers and a plurality of uplink component carriers. And while the mobile station apparatus (user device) transmit an uplink data to the base station apparatus on the plurality of uplink component carriers, the mobile station apparatus (user device) transmit a scheduling request for requesting uplink resource for the uplink data to the base station apparatus using a physical uplink control channel (PUCCH) only on a specific uplink component carrier of the plurality of uplink component carriers.

Abstract: The number of training signals for channel estimation is reduced.

Abstract: The present disclosure relates to a Doppler shift compensation scheme applicable in a high mobility communication system. In some examples, a Doppler shift compensation apparatus may include an angle measuring unit configured to measure Angle Of Arrival (AOA) information of a User Equipment (UE); a velocity calculating unit configured to calculate a velocity information of the UE based on the measured AOA information; a frequency shift estimating unit configured to estimate Doppler shift of the UE based on the measured AOA information and the calculated velocity of the UE; a frequency shift compensation triggering unit configured to trigger Doppler frequency shift compensation based on the estimated Doppler shift of the UE; and a frequency shift compensating unit configured to perform the Doppler frequency shift compensation based on a trigger instruction from the frequency shift compensation triggering unit.

Abstract: A wireless communications system and, more particularly, to a dynamic uplink power control method and device in a wireless communications system are disclosed. A method for dynamically controlling an uplink transmission power at a base station is provided, the method includes the steps of receiving an uplink signal from a user equipment being served by the base station, deciding whether or not an uplink transmission to the base station from the user equipment causes an interference with another base station, and transmitting a transmission power control (TPC) command muting the uplink transmission to the user equipment.

Abstract: An information processing apparatus and a communication apparatus for accurately recognizing at the base station the current receiving quality of the mobile terminals for improving the throughput of the base station. A mobile terminal determines its own receiving quality based on the signal received from the base station for generating the receiving quality message indicating the receiving quality and generates the power control information requesting the transmission power of the base station. The receiving quality message is transmitted at a frame rate and power control information is transmitted at the slot rate to the base station. Based on both the receiving quality message and power control information, the base station estimates the current receiving quality of the mobile terminal and adaptive modulation and coding is performed based on the estimated value. The present invention may be applied to cellular phones and base stations.

Abstract: A network node for an EGPRS system, equipped with a plurality of transmit antennas and arranged to transmit at least a first and a second data stream as MIMO streams, with the first data stream being transmitted from a first antenna and the second data stream being transmitted from a second transmit antenna. The network node is arranged to transmit the data streams as bursts comprising a training sequence and payload. The network node is arranged to swap parts of the data streams between the transmit antennas, i.e. to transmit all or parts of one or more bursts belonging to the first data stream from the second transmit antenna and to transmit corresponding all or parts of one or more bursts belonging to the second data stream from the first transmit antenna.

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: Technology for device discovery using a device-to-device (D2D) sounding reference signal (SRS) and device discovery using D2D SRS in a channel measurement group (CMG) is disclosed. In an example, a user equipment (UE) configured for device discovery via a node using the D2D SRS can include a transceiver module. The transceiver module can send a radio resource control (RRC) device discovery request to a node, scan D2D SRS subframes of proximity UEs using D2D SRS triggering, and send feedback to the node of detected D2D SRS information of the proximity UEs. The proximity UE can be located within a same cell as the UE.

Abstract: Transmit power control is achieved by determining a data rate of at least a first channel and controlling the transmit power of the at least first channel based on the determined data rate. The transmit power may be adjusted based on a ratio of power between the at least first channel and a second channel, and the ratio may be adjusted based on the data rate of the first data channel. The first data channel may be a data channel, and the second data channel may be a control channel. The ratio is adjusted such that a power offset between the first channel and the second channel is proportional to the data rate of the first channel. The ratio may be adjusted based on the coding rate, data transmission rate, and/or a rate matching parameter. The transmit power may also be adjusted based on received power control commands. The transmit power may be adjusted in this manner in the uplink or the downlink direction.