Abstract: A user equipment (UE) provides service continuity when the UE is about to move out of coverage of a Multimedia Broadcast Multicast Service (MBMS). The UE: receives MBMS data via an MBMS bearer; detects that the UE is suffering from a bad MBMS bearer condition; informs a server of the bad MBMS conditions to initiate switching to unicast; wherein, if there is downlink data to deliver during switching, the UE begins to receive the downlink data via unicast and to continues to receive downlink data via the MBMS bearer until the switching to the unicast bearer is complete. The UE is configured to determine a quality of the MBMS bearer relative to a threshold, which is dependent on service type, for indicating that the MBMS bearer quality is not acceptable. When the threshold is reached, the UE sends a message to the server.

Abstract: A radio network node (110) manages (A010) establishment of a current radio session between a user equipment (120) and the radio network node (110), wherein the current radio session is associated with a current set of characteristics relating to the radio network node (110) and/or the user equipment (120). During establishment of the current radio session, a core network node (130) retrieves (A080), based on the current set of characteristics, an indication about the MCS offset from a memory (141, 142) accessible by the core network node (130). Then, the core network node (130) sends (A090), to the radio network node (110), the indication about the MCS offset. The indication is derived from a previous radio session, wherein the previous radio session is associated with a previous set of the characteristics, wherein the previous set of the characteristics matches the current set of the characteristics.

Abstract: A first communication device transmits a null data packet (NDP) to multiple second communication devices. The NDP spans a channel frequency bandwidth. The first communication device receives a plurality of sounding feedback packets from the second communication devices. Each sounding feedback packet includes one or more signal-to-noise ratio (SNR) indicators corresponding to one or more respective groups of orthogonal frequency division multiplexing (OFDM) subcarriers, and the SNR indicators correspond to reception of the NDP at the plurality of second communication devices. Each sounding feedback packet in the plurality of sounding feedback packets includes a respective indication of OFDM subcarriers for which the sounding feedback packet includes SNR information, and at least one sounding feedback packet from among the plurality of sounding feedback packets does not include SNR information for all OFDM subcarriers via which the NDP was transmitted.

Abstract: Methods, apparatus, systems and articles of manufacture to transmit data in a connectionless mode are disclosed. An example method includes identifying, at a user equipment, that data exists to be transmitted to a destination address, the destination address encoded into the data. An indication is transmitted that the user equipment will transmit the data, the data to be transmitted without establishing a bearer with a wireless network. The data is encoded into a preamble of a random access channel message. The random access channel message is transmitted.

Abstract: The present disclosure is directed to systems, apparatuses, and methods for performing continuous or periodic link training. Existing link training protocols generally perform link training only once during startup or initialization of a link and, as a result, are limited in their applications. After link training is performed and Open Systems Interconnect (OSI) data link layer and other high-layer data is transmitted across the link, no further link training is performed using these existing link training protocols. However, parameters of the link may change over time after link training is performed, such as temperature of the link and voltage levels of signals transmitted over the link by the transmitter of the transmitter-receiver pair.

Abstract: A transmitter circuit includes: an in-phase signal processing circuit; a quadrature signal processing circuit; an analog signal processing circuit arranged to operably generate a corresponding analog signal according to the signals outputted from the in-phase signal processing circuit and the quadrature signal processing circuit; a transmitter control circuit arranged to operably control the in-phase signal processing circuit and the quadrature signal processing circuit to cooperate with the analog signal processing circuit to generate a first predetermined signal at a first time point, and to operably control the in-phase signal processing circuit and the quadrature signal processing circuit to cooperate with the analog signal processing circuit to generate a second predetermined signal at a second time point, and an image rejection ratio measurement circuit arranged to operably generate an estimated image rejection ratio of the transmitter circuit.

Abstract: A channel state information CSI feedback method is disclosed for receiving a downlink symbol from a base station, where the downlink symbol includes a pilot; obtaining a channel matrix based on the pilot included in the downlink symbol; calculating a precoding matrix based on the channel matrix and a basic codebook; generating CSI based on the precoding matrix; and transmitting an uplink symbol to the base station, where the uplink symbol carries the CSI.

Abstract: A test instrument connectable to a network to provide copper impairment testing and remediation in a digital subscriber line (DSL) service is provided. The test instrument may comprise a port connectable to a test point in a network. The test instrument may also comprise a processing circuit to perform tests in the following categories: (i) shorts, grounds, and opens, (ii) true length, (iii) balance, and (iv) series fault, wherein the combination of these tests may determine copper impairment. Once tests are conducted, one or more remediation recommendations may be provided based at least in part on failure in one of the test categories. The test results and remediation recommendations may then be presented at an output, such as a display at a test instrument or user device.

Abstract: A system, method, and apparatus for managing interference are presented. The interference may be between i) a fixed wireless link, FL, formed by a first FL node and a second FL node which communicate at a frequency f1 and ii) a radio access network, RAN, node. The method may comprise the first FL node monitoring radio link quality, QL, of fixed wireless link signals at f1. The first FL node may determine whether QL is worse than a predetermined QL threshold. If QL is worse than the predetermined QL threshold, the first FL node may measure, during a silent period, how much one or more signals transmitted from the RAN node 108 interferes with the first FL node at the f1. The first FL node may transmit, to an interference mitigation controller, interference measurement information which indicates how much the RAN node interferes with the first FL node at f1.

Abstract: A power receiver includes a first secondary-side resonant coil that receives electric power from a primary-side resonant coil through magnetic field resonance; a rectifier circuit that rectifies alternating-current power; a smoothing circuit; a pair of output terminals; a switch, inserted in series on a line between the rectifier circuit and the smoothing circuit, that switches a state of the line, and a drive controller that drives the switch through a first PWM drive pattern determined by a first duty cycle and a first frequency that is less than or equal to a frequency of the magnetic field resonance. The first duty cycle is set based on a first power reception efficiency of the first secondary-side resonant coil, a first rated output of a first load, a second power reception efficiency of a second secondary-side resonant coil of another power receiver, and a second rated output of a second load.

Abstract: Techniques for random access channel signaling on a shared communication medium are disclosed. A broadcast message including information associated with a Physical Random Access Channel (PRACH) may be transmitted and received on one or more subframes in a portion configured for downlink signaling. The broadcast message may comprise a contention type indicator, a timing advance indicator, or a combination thereof. The contention type indicator may indicate whether contention is in effect for transmission on the PRACH. The timing advance indicator may indicate whether an uplink transmission offset is in effect for transmission on the PRACH. Signaling over the PRACH may be transmitted and received on one or more subframes in a portion configured for uplink signaling.

Abstract: A small cell interference coordination method and wireless communication device. The method includes: obtaining mobile information of at least one of the small cells; determining relative movement between the small cells according to at least the movement information; estimating a Doppler frequency shift of a signal between small cells according to the relative movement; and implementing an interference alignment policy between small cells according to the estimated Doppler frequency shift.

Abstract: A method for receiving data in an unlicensed band and a device using the same are provided. The device receives discovery reference signal (DRS) configuration for a DRS period from a primary cell operating in a licensed band, and checks the reception of the DRS in a DRS subframe of a secondary cell operating in the unlicensed band according to the DRS period. When the DRS is received in the DRS subframe, the device determines the reception quality of a downlink data burst on the basis of the received DRS.

Abstract: Embodiments relate to a data transmission method and device. A feedback request is sent by a first device to user equipment that instructs the user equipment to feed back channel indication data to a network device. The channel indication data indicates that a channel is occupied by the first device within a time that corresponds to the channel indication data. The network device includes the first device and one additional device. The first device receives the channel indication data sent by the UE. The first device performs data transmission with the UE using the channel within the time that corresponds to the channel indication data.

Abstract: Disclosed herein is a sounding method of a station (STA) for sending feedback information about a downlink (DL) channel state in a wireless LAN (WLAN) system. The sounding method includes receiving an NDP announcement (NDPA) frame providing notification of the transmission of a null data packet (NDP) frame; receiving the NDP frame; receiving a trigger frame comprising resource allocation information allocated to the STA; generating feedback information using the NDP frame; and sending a feedback frame comprising feedback information through uplink (UL) multi-user (MU) transmission using a frequency resource indicated by the resource allocation information. The feedback information may be generated in a frequency granularity (FG) unit with respect to a transmission bandwidth having a size smaller than or equal to the size of a transmission bandwidth of the NDP frame.

Abstract: A method and corresponding system for controlling whether a UE is served by a relay base station, based on consideration of the maximum-supported MCS of the relay base station's associated UE-relay. The method could apply where the UE is already served by the relay base station, in which case the question could be whether the UE continues being served by the relay base station or rather hands over to another base station. Or the method could apply where the UE is not yet being served by the relay base station, in which case the question could be whether the UE should initially attach with or hand over to the relay base station. Further, the method could be carried out by the UE and/or by a base station or other network entity.

Abstract: A system for beam training including a transmitter forming a transmission beam using a transmission array and a receiver forming a receiving beam using a receiving array is disclosed. The transmitter transmits an identifier of a transmission training beam selected from the transmission beams using a secondary synchronization signal or a common reference signal, etc. The identifier of the transmission training beam is used for the beam training.

Abstract: A method for determining a Physical Uplink Share Channel (PUSCH) transmission power may comprise measuring reference signal received power, calculating downlink path loss by comparing the reference signal received power to a downlink transmit power from a next generation node B (gNB), obtaining parameters from the gNB, and determining the PUSCH transmission power based on a configured user equipment (UE) transmission power, bandwidth of PUSCH resource assignment, a target power including the sum of a cell specific nominal component and a UE specific component, a scaling factor, a downlink (DL) path loss, a UE specific parameter for different types of traffic, and a PUSCH power control adjustment state. The method may further comprise calculating a numerology adjustment factor based on a configured subcarrier spacing and a default subcarrier spacing, and utilizing the numerology adjustment factor to determine the PUSCH transmission power.

Abstract: Embodiments of the present application provide a channel state information transmission method. The method includes: receiving downlink data; determining an uplink subframe used to send feedback information of the downlink data, where a first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, and the first subset is a proper subset of the second subset; determining a channel resource used to send the feedback information, where the channel resource includes a first uplink channel resource or a second uplink channel resource; and if sending of r pieces of CSI is configured to be sent, a codebook size of the feedback information corresponds to the first subset, and the determined channel is the second uplink channel resource, sending the feedback information and t pieces of CSI of the r pieces of CSI on the second uplink channel resource.

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). Exemplary embodiment of the present invention provide a scheme for reducing feedback overhead when quantizing and feeding back channel state information in a MIMO system. A method for operating a receiver in a MIMO system, according to one embodiment of the present invention, includes the steps of: performing trellis coded quantization for channel information by using a codebook selected from a plurality of codebooks; and transmitting, to a transmitter, feedback information including the quantization result.

Abstract: An apparatus and method are provided for feeding back channel quality information and performing scheduling using the fed-back channel quality information in a wireless communication system based on Orthogonal Frequency Division Multiple Access (OFDMA). In the OFDMA wireless communication system, forward performance degradation due to a decrease in an amount of reverse channel quality information is reduced, and also an increase in the reverse load due to channel quality information feedback is suppressed. A base station controls power of a physical channel using information fed back from a mobile station. In a method for feeding back channel quality information from the mobile station, sub-band-by-sub-band channel quality information is measured and channel-by-channel quality information of a number of channels is transmitted in order of sub-bands of better channel quality information. Average channel quality information for a total band is measured and transmitted.

Abstract: Components, systems, and methods for reducing location-dependent destructive interference in distributed antenna systems operating in multiple-input, multiple-output (MIMO) configuration are disclosed. Interference is defined as issues with received MIMO communications signals that can cause a MIMO algorithm to not be able to solve a channel matrix for MIMO communications signals received by MIMO receivers in client devices. These issues may be caused by lack of separation (i.e., phase, amplitude) in the received MIMO communications signals. Thus, to provide amplitude separation of received MIMO communications signals, multiple MIMO transmitters are each configured to employ multiple transmitter antennas, which are each configured to transmit in different polarization states. In certain embodiments, one of the MIMO communications signals is amplitude adjusted in one of the polarization states to provide amplitude separation between received MIMO communications signals.

Abstract: Techniques for channel configuration on a shared communication medium are disclosed. An access point may select a set of resource elements to carry an uplink control channel and transmit a configuration message including one or more configuration parameters associated with the selected set of resource elements to one or more access terminals. The access point may then receive uplink control signaling from the one or more access terminals via the selected set of resource elements. An access terminal may receive a configuration message including one or more configuration parameters for an uplink control channel from an access point and determine a set of resource elements configured to carry the uplink control channel based on the configuration message. The access terminal may then transmit uplink control signaling to the access point via the determined set of resource elements.

Abstract: Techniques for communicating channel data regarding a channel plan are described herein. For example, a device may communicate a channel information element that includes a tag indicating a first operating context to which to apply channel data regarding a channel plan. The channel information element may also include a reference tag to indicate whether the channel data is contained in the channel information element or has been previously received and/or to identify a second operating context associated with previously received channel data. If the reference tag indicates that the channel data is contained in the channel information element, the channel data may be extracted from the channel information element and applied to the first operating context. If the reference tag indicates that the channel data has been previously received, the previously received channel data may be accessed and applied to the first operating context.

Abstract: The present invention defines a method for controlling uplink transmission power of a terminal in a communication system which is operated by combining heterogeneous systems. Specifically, the present invention defines a method for selectively applying a power control command in order to control uplink power of a terminal in a communication system which is operated by combining an LTE/LTE-A system with a system which applies a new radio access technology, and a method for differently operating power control units depending on whether beam sweeping is applied or not. Such methods efficiently control transmission power of a terminal, and lower the generation of uplink interference signals, thereby improving system efficiency.

Abstract: A method and a network node (110) for obtaining a nominal power “P0” of transmissions on an uplink channel and a pathloss compensation factor “?” are disclosed. The cell (101) is associated to a non-regular scenario, at least partly defined by respective locations of further cells of the cellular network (100). The further cells are neighbors to the cell (101), which is located at a location within the cellular network (100). The network node (110) generates, for each further cell, a respective regular scenario in relation to the cell (101). The generation is at least based the respective location corresponding to said each further cell and the location of the cell (101). The network node (110) determines, also for each further cell, a respective P0 and a respective ? for each respective regular scenario.

Abstract: A method for adjusting an antenna configuration of the terminal device (30) in a cellular communication system (10). The system (10) includes a base station (20) and a terminal device (30) having a plurality of antenna elements (40-43). In the terminal device (30) a plurality of preset antenna configurations is provided. Each antenna configuration defines at least one reception parameter for the plurality of antenna elements (40-43). For each antenna configuration of the plurality of preset antenna configurations the antenna configuration is applied to the plurality of antenna elements (40-43) and a reception characteristic of a signal transmission from the base station (20) is determined. Based on the plurality of reception characteristics one antenna configuration is selected and applied to the plurality of antenna elements (40-43) for further signal transmissions.

Abstract: A method and apparatus for routing the same data through independent routes between stations in a mesh network to increase the robustness of communications. The disclosed feature allows transmission of the same data stream via multiple routes from a source station (STA) to a destination station (STA). An extended routing request (RREQ) and routing reply (RREP) are utilized which provide a primary and secondary flag indication, which is utilized in combination with advanced programming for setting path cost metrics to assure independence of primary and secondary routes.

Abstract: Described are methods and devices for increasing the efficiency of Wi-Fi networks by increased spatial reuse, which refers to sharing the same wireless spectral resources over different spatial regions. A described technique for doing this is for a Wi-Fi device to increase the threshold of the clear channel assessment (CCA) so as to ignore and regard as interference the transmissions from other devices. The sensing range of the Wi-Fi device then decreases, and the spatial resource can be reused by different Wi-Fi devices in different spatial locations.

Abstract: Disclosed by the embodiments of the present document are a mobile communication terminal including a signal output module, a main antenna module, a diversity antenna module, an acquisition module, a control module and a radio-frequency switching module, and a signal transmission method. The acquisition module is used to acquire transmitting power P1 of a transmitted signal when the signal output module generates the transmitted signal to transmit through the main antenna module, and acquire transmission capabilities of the main antenna module and the diversity antenna module when P1 is greater than a first preset value. The control module outputs a corresponding control signal to the radio-frequency switching module according to the transmission capabilities of the main antenna module and the diversity antenna module; and the radio-frequency switching module controls the output module to be connected with the main antenna module or the diversity antenna module according to the control signal.

Abstract: Provided are a method and an apparatus for transmitting a multimedia broadcast/multicast service (MBMS) interest indication message in a wireless communication system. A user equipment (UE) receives from a first base station system information for an MBMS which is broadcasted, and transmits the MBMS interest indication message to the first base station when the user equipment performs a handover from a second base station, which does not broadcast the system information for the MBMS, to the first base station.

Abstract: Embodiments herein provide a method for beam steering in a Multiple Input Multiple Output (MIMO) system. The method includes steering a transmit beam using a precoder matrix determined based on a plurality of parameters, wherein the transmit beam is formed using at least one of a weight of each antenna element, a number of antenna elements, and an inter-antenna element spacing.

Abstract: A wireless device comprises a primary antenna, a primary transceiver, one or more secondary antennas and one or more receive diversity chains. The receive diversity chains, in some embodiments, include transceiver capability. The wireless device measures and collects various statistics. Based on the statistics, the wireless device enables or disables one or more of the receive diversity chains with respect to a cellular radio access technology (RAT). A disabled receive diversity chain, in some instances is then powered down. During an interval when a receive diversity chain is disabled, the control logic periodically or on an event-driven basis enables a given receive diversity chain to probe channel quality indicator (CQI) and channel rank values. In some embodiments, a time interval for collecting a portion of the statistics, is adapted or backed off in anticipation of use of the receive diversity chain, based on traffic circumstances.

Abstract: To improve system performance for mobile communications (group mobility) in a plurality of terminals existing inside the same moving object, a radio base station, which forms a cell on a moving path of a moving object to communicate with a mobile station provided in the moving object using beam forming, is provided with a transmission section that transmits a plurality of acquisition signals applied with different beam forming weights respectively to at least an edge region of the cell formed on the moving path of the moving object, and a control section that controls a beam forming weight to apply to a data signal transmitted to the mobile station, based on information notified from the mobile station receiving an acquisition signal.

Abstract: Provided are an apparatus and method for pre-coding data based on quantized channel state information and channel statistics. In use, channel statistics are collected. Further, one or more reference signals are sent to a wireless device via at least one channel. Thereafter, quantized channel state information is received that corresponds to the at least one channel, where the quantized channel state information is sent by the wireless device based on the one or more reference signals. Data is pre-coded based on the quantized channel state information and the channel statistics. Further, the pre-coded data is transmitted to the wireless device.

Abstract: Techniques for managing peak-to-average power ratio (PAPR) for multi-carrier modulation in wireless communication systems. Different terminals in a multiple-access system may have different required transmit powers. The number of carriers to allocate to each terminal is made dependent on its required transmit power. Terminals with higher required transmit powers may be allocated fewer carriers (associated with smaller PAPR) to allow the power amplifier to operate at higher power levels. Terminals with lower required transmit powers may be allocated more carriers (associated with higher PAPR) since the power amplifier is operated at lower power levels. The specific carriers to assign to the terminals may also be determined by their transmit power levels to reduce out-of-band emissions. Terminals with higher required transmit powers may be assigned with carriers near the middle of the operating band, and terminals with lower required transmit powers may be assigned with carriers near the band edges.

Abstract: Optimizing a power level for a transmission so that the transmission is receivable at or near a destination, but no farther, is useful for reduced-power transmissions. Taking into account known distance for the transmission as determined by onboard GPS and geographic databases, a power level may be set more precisely. Accounting for atmospheric conditions which may impact transmission as determined by onboard or received measurements of temperature, solar or other conditions may also permit a power level to be set more precisely. An obstruction database may be consulted to determine whether transmissions will degrade due to objects in between the transmitter and receiver, permitting power level, frequency, bandwidth or transmit/receive location to be adjusted accordingly.

Abstract: A system or method that receives a current request from a client, and responds to the current request based on signal strength associated with a previous request. If the current request is received on a non-preferred communication band, and a previous request was received on a preferred communication band within a pre-determined time, the system determines whether the signal strength associated with the previous request is weaker than a pre-determined threshold signal strength level for the preferred communication band. If so, the system responds to the current request. Otherwise, the system ignores the current request. If no recent request on the preferred communication band is received, and the signal strength associated with the current request is weaker than a pre-determined threshold signal strength level for the non-preferred communication band, the system responds to the current request on the non-preferred communication band. Otherwise, the system ignores the current request.

Abstract: The present invention relates to a wireless power transmission apparatus and a method therefor, and more particularly to a wireless power transmission apparatus for supplying wirelessly power to a plurality of wireless power reception devices using different wireless power transmission/reception means. A wireless power transmission apparatus according the present invention includes: a power transmission module for transmitting wirelessly power by means of the magnetic field of one of a plurality of predetermined frequency bands; a communication module for communicating with a wireless power reception device; and a controller for setting a power transmission mode based on a plurality of device profiles reflecting the frequency bands used for wireless power transmission/reception received from a plurality of wireless power reception devices.

Abstract: A touch communications device includes a first touch panel and a processor. The first touch panel includes a first region and a second region. The processor is arranged to control the first region and/or the second region to transmit a signal when a second touch panel of another touch communications device is close to or in contact with the first touch panel.

Abstract: The present disclosure relates to the operation and configuration of a station and an access point in a wireless LAN (WLAN) system, and more particularly, to a method for efficiently performing multi-user transmission by a station or an access point in a WLAN system and a device for the same. In particular, the present disclosure proposes a method and device for operating a station or an access point supporting multi-user transmission in a Frequency Division Multiple Access (FDMA) scheme or a Multi-User Multi Input Multi Output (MU-MIMO) scheme.

Abstract: A method and apparatus for controlling an uplink transmission power in a mobile station of a mobile communication system. The method includes transmitting uplink data in a first transmission interval, receiving a transmission power control information over a downlink control channel, and determining a transmission power of uplink data to be transmitted in a second transmission interval. The transmission power is determined based on the received transmission power control information and a transmission power of the uplink data transmitted in the first transmission interval. The first transmission interval and the second transmission interval are included in a same Hybrid Automatic Retransmission reQuest (HARQ) process.

Abstract: An apparatus has a wireless local area network (WLAN) transceiver and one or more sensors. The sensors are monitored. From time to time, a mitigation level applicable to the apparatus is determined as a function of output from the one or more sensors. The mitigation level is one of multiple mitigation levels, each mitigation level corresponding to a set of configuration changes for a Media Access Control (MAC) layer of the WLAN transceiver. Responsive to determining that the applicable mitigation level has increased from a most recent previously determined mitigation level, the MAC layer is configured to effect a decrease in a transmit duty cycle of the WLAN transceiver. Responsive to determining that the applicable mitigation level has decreased from a most recent previously determined mitigation level, the MAC layer is configured to effect an increase in the transmit duty cycle of the WLAN transceiver.

Abstract: A user equipment (UE) performing transmit power control (TPC) transmission slot assignment includes a receiver, a determining means and a slot allocator. The UE receives one or more TPC commands from two or more radio links, determines a TPC combining period in accordance with a primary slot position, wherein a primary TPC symbol transmission of the primary radio link is present at the primary slot position; a slot allocator that allocates a secondary slot position for a secondary TPC symbol transmission of the secondary radio link in accordance with the TPC combining period. A method and a radio base station are also included herein.

Abstract: An adaptive matching RF architecture and an associated matching method are provided. The RF architecture comprises a power amplifier module, a receiving module, an antenna, an RF processing module, a baseband control module and at least one adjustable matching network module, the at least one adjustable matching network module being connected between the power amplifier module and the RF processing module, and/or between the receiving module and the RF processing module, and/or between the antenna and the RF processing module. The baseband control module is pre-stored with multiple matching values corresponding to multiple different application scenarios, the matching values of the at least one adjustable network module being applied based on the application scenarios to attain the optimum RF performance.

Abstract: Components, systems, and methods for reducing location-dependent destructive interference in distributed antenna systems operating in multiple-input, multiple-output (MIMO) configuration are disclosed. Interference is defined as issues with received MIMO communications signals that can cause a MIMO algorithm to not be able to solve a channel matrix for MIMO communications signals received by MIMO receivers in client devices. These issues may be caused by lack of separation (i.e., phase, amplitude) in the received MIMO communications signals. Thus, to provide amplitude separation of received MIMO communications signals, multiple MIMO transmitters are each configured to employ multiple transmitter antennas, which are each configured to transmit in different polarization states. In certain embodiments, one of the MIMO communications signals is amplitude adjusted in one of the polarization states to provide amplitude separation between received MIMO communications signals.

Abstract: Sub-band CQI reports are introduced for LTE systems having system bandwidth of narrow band, e.g. less than or equal to 6 resource blocks, which address issues pertinent to such narrowband systems. Three related methods are described: fixed, semi-static and adaptive sub-band size. To varying degrees they are each specified in accordance with the channel condition.

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: A radio base station and a method therein for scheduling an uplink radio resource to a first user equipment in a wireless communication system which employs CDMA are provided. The method includes measuring an Interference Suppression (IS) gain for each user equipment in a set of user equipments currently being served by the radio base station. The method further includes determining a user constellation pertaining to information regarding the different user equipments in the set of user equipments and their respective bitrates, and updating a table of IS gains with the measured IS gain in bins corresponding to the determined user constellation. The method further includes predicting a load based on at least the updated table, and scheduling the uplink radio resource to the first user equipment at least partly based on the predicted load.

Abstract: An equal gain composite beamforming technique which includes the constraint that the power of the signal output by each antenna is the same, and is equal to the total power of the transmit signal divided by the number N of transmit antennas from which the signal is to be transmitted. By reducing output power requirements for each power amplifier, the silicon area of the power amplifiers are reduced by as much as N times (where N is equal to the number of transmit antennas) relative to a non-equal gain composite beamforming technique. A method and apparatus are disclosed for a multiple input multiple output (MIMO) transmission technique by a wireless communications device which includes providing that the power applied to each transmit antenna may be equal to the total power of the transmit signal divided by the number N of transmit antennas from which the signal is to be transmitted. The device may produce a weight for each of the N transmit antennas used in MIMO transmission.