Abstract: Methods and apparatuses are provided for controlling a transmission signal in a transceiver. Cyclic shift values that are applied to transmission signals are determined, when the transmission signals are to be transmitted through multiple layers. The transmission signals are cyclically shifted according to the cyclic shift values. The cyclically-shifted transmission signals are added. The added cyclically-shifted transmission signals are transmitted.

Abstract: Certain aspects of the present disclosure provide techniques and apparatuses for wireless communications. According to certain aspects, a set of protected resources, allocated to a base station of a first cell, that are protected by restricting transmissions of a second cell is determined and received power of a first reference signal from the base station in the set of resources is measured. According to certain aspects, a subset of one or more neighbor base stations that have reduced interference in a set of protected resources is determined and received power measurements for the subset of neighbor cells is excluded when calculating receive signal quality measurements for the subframe.

Abstract: A method for performing inter cell interference coordination between a first cell A and a second cell B of a communication network, wherein at least the first cell comprises a plurality of distributed transmission points. The method in the first cell comprises individually controlling the transmit power of the plurality of distributed transmission points within the first cell A. By being able to individually control the transmit power of each distributed transmission point to perform inter cell interference coordination, this has the advantage of improving the performance of victim UEs in the second cell B, while not impacting the performance in most UEs connected to the first cell A (e.g. the aggressor cell).

Abstract: The white space resource acquisition method provided according to the embodiments of the present invention includes: receiving, by a white space resource request device, a white space resource request message sent by a white space device; and sending, by the white space resource request device, a white space resource response message to the white space device, where the white space resource response message includes white space resource information that is requested from a white space database and that is corresponding to first white space requirement information of the white space device. According to the white space resource acquisition method provided in the embodiments of the present invention, a white space resource request device requests, based on the PAWS protocol, white space resource information from a white space database, and interaction between a white space device and the white space resource request device may be established by using an existing protocol.

Abstract: Coordination of the use of radio resource between a first Radio Access Network (RAN) and a second RAN is provided, each RAN being configured to communicate over the same predefined bandwidth range. A first priority associated with traffic to be carried over the first RAN and a second priority associated with traffic to be carried over the second RAN are determined. A first portion of the radio resource comprising one or more first bandwidth segments is assigned to the first RAN and a second portion of the radio resource comprising a plurality of second bandwidth segments is assigned to the second RAN, based on the first and second priorities. The first portion is indicated to a first RAN scheduler and/or the second portion is indicated to a second RAN scheduler. At least one first bandwidth segment is assigned between two of the second bandwidth segments.

Abstract: One embodiment of the present invention relates to a method for transmitting channel information in a wireless communication system. Disclosed is method for transmitting channel information, comprising the steps of: generating a frame which includes an operating class field and a channel number field; and transmitting the generated frame, wherein the channel number field indicates a number of a wireless local area network (WLAN) channel allocated according to available channel information.

Abstract: A proposed 3GPP LTE protocol enhancement disclosed herein realizes the full benefit of proposed dynamic frequency sharing systems by enhancing current handoff signaling in a 3GPP LTE standard for optimized UE reconnection during interrupted handoff from Licensed Shared Access (LSA) frequency bands to Primary Long Term Evolution (LTE) frequency bands during loss of LSA spectrum resources. A User Equipment (UE) comprises a transceiver configured to determine a connection state during a loss of LSA frequency spectrum, transmit a reconnection request message when the UE is in a state of established connection or a connection request message when the UE is in an idle state, the request message carrying a loss of LSA frequency band cause, optimally connect according to the loss of LSA frequency band cause, to a primary LTE frequency band, and transmit a connection or reconnection complete message.

Abstract: A method for interference-aware scheduling is provided. The method can include acquiring a plurality of interference characteristics, each of the interference characteristics associated with a range of communication resources. The method may further include combining at least two of the interference characteristics into a combined interference characteristic, and transmitting a message encoding the combined interference characteristic.

Abstract: A method in a first radio node for adapting a receiver type is described. The first radio node includes a first a second different receiver types. The first radio node is included in a wireless communications network, which further includes a second and at least one third radio nodes. The method includes adapting the receiver type to be one of the first and the second types in the first radio node, for receiving first signals from the second radio node, based on a relation between an activity of the first signals and second signals received from the at least one third radio node. The first signals include signals received from a first cell associated with the second radio node. The second signals include signals received from a second cell associated with the at least third radio node. The at least third radio node causes interference on the first signals.

Abstract: The present invention provides a method and a device for interference coordination. The method comprises: determining mutually interfering wave beams between a cell of a first base station and a cell of a second base station based on first interference information and second interference information; coordinating time-frequency resources, time domain resources or frequency domain resources occupied when the mutually interfering wave beams between the cell of the first base station and the cell of the second base station are sent, so as to reduce interference. By coordinating, wave beams of the cells of the base stations are sent in a staggered manner in terms of the time-frequency resources, the time domain resources or the frequency domain resources.

Abstract: A base station comprises a radio communication unit that uses a radio resource to perform radio communication with a radio terminal; an inter-base station communication unit that performs inter-base station communication with another base station; and a control unit that controls the radio communication unit and the inter-base station communication unit. The inter-base station communication unit comprises a transmission unit that transmits interference control information for controlling interference with the other base station, to the other base station; and a reception unit that receives information indicating a usage of the radio resource in the other base station, from the other base station.

Abstract: A method for measuring a channel in a wireless communication system is provided. A terminal receives a first reference signal from a primary cell. The terminal receives a second reference signal from a secondary cell corresponding to the primary cell. The terminal measures a channel for the secondary cell on the basis of the second reference signal. A subframe in which the second reference signal is received is signaled from the primary cell.

Abstract: Systems and methods disclosed herein provide in-device co-existence interference avoidance for a wireless communication device in dual connectivity with a master node and a secondary node. Time-division multiplexing (TDM) assistance information sent by the wireless communication device is forwarded from the master node to the secondary node. The master node and/or the secondary node uses the TDM assistance information to determine a TDM solution for the in-device co-existence interference in the wireless communication device.

Abstract: In one embodiment, a method in a network node is provided. The network node is configured to use a first power level for transmitting data in subframes of a first type, and to use a second power level for transmitting data in subframes of a second type. The method comprises signaling (520) first and second information to a network entity. From the first information, a power offset for subframes of the first type is derivable. The first power offset represents a relation between a power level for transmitting reference signals and the first power level. From the second information, a power offset for subframes of the second type is derivable. The second power offset represents a relation between the power level for transmitting reference signals, and the second power level.

Abstract: To improve the frequency diversity effect and enhance reception quality characteristics in a mobile terminal apparatus even when the system bandwidth is extended, provided are a base station apparatus which maps transmission data to each user to a single or plurality of group bands among group bands configured by dividing a system band into a plurality of bands, and transmits the mapped transmission data on downlink, and a mobile terminal apparatus which receives the transmission data mapped to the group bands and demaps the transmission data.

Abstract: A Network Node, a UE operable in a MIMO system and respective methods performed by the Network Node and UE are provided for determining a precoder of a Codebook to use for transmissions to the UE. The Network Node includes at least two transmitting antennas corresponding to two individual Ranks. The Network Node determines which precoders the UE shall evaluate, and transmits, to the UE, the determined precoders the UE shall evaluate. The Network Node receives, from the UE, a PMI, associated with one of the determined precoders, which the UE requests the Network Node to use for transmission to the UE; and the Network Node transmits, to the UE, data using the requested precoders.

Abstract: Methods and apparatuses are provided for communicating with a terminal of a base station in a mobile communication system. Configuration information on a plurality of antenna ports of reference signals (RSs) which comprise first type antenna ports and second type antenna ports, is transmitted. Status information for at least one antenna port of an RS among the plurality of antenna ports of the RSs, is received. At least one indicator indicating at least one selected antenna port of an RS is transmitted based on the status information. The terminal is communicated with using the at least one selected antenna port of the RS. The first type antenna ports are for a centralized antenna and the second type antenna ports are for a distributed antenna.

Abstract: The present invention provides a method for processing a scheduling grant and a UE. In the present invention, a UE determines a sending manner adopted by the UE. If the sending manner is not corresponding to a first grant value obtained by the UE, the UE further determines, according to the first grant value, an obtained primary/secondary stream signal to noise ratio, and an obtained power bias of an E-DPCCH, a second grant value corresponding to the sending manner, so that the UE can determine a length of a to-be-sent data block by using the sending manner and the second grant value.

Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method for reporting a channel state by a terminal to a serving base station in a wireless communication system, wherein extra channel state information is reported to enable the serving base station to estimate the channel state more accurately. When the base station estimates the channel state with the terminal, the channel state information received from the terminal, the extra channel state information, and traffic information of neighboring base stations are collectively considered to estimate the channel state with the terminal, thereby enabling estimation of the channel state with improved reliability and accuracy.

Abstract: A user equipment receives physical downlink shared channel data on a PDSCH in a second subframe from a second serving cell to the user equipment. The second serving cell is activated by the first serving cell, and the second serving cell does not map the PDSCH data to a second RE corresponding to a first resource element of the first subframe mapped with the CRS. The CRS is generated from a pseudo random sequence that is initiated by a cell identifier of the first serving cell and the PDSCH is indicated by an enhanced physical downlink shared channel of the second subframe, and the second RE of the second subframe and the first RE of the first subframe overlap in a time domain and in a frequency domain.

Abstract: A method embodiment includes compiling, by a network device, a cooperation candidate set (CCS) and determining a cooperation active set (CAS). The CCS includes a plurality of potential cooperating user equipment (CUEs) for selection to the CAS, and the plurality of potential CUEs is selected from a plurality of user equipment (UEs) in the network. The CAS is a set of CUEs selected from the CCS. A target user equipment (TUE) and the set of CUEs form a virtual multipoint transceiver.

Abstract: The present invention provides a method and user equipment for performing radio resource management. The user equipment receives a request for radio resource management for a cell, and performs radio resource management for the cell based on said request for radio resource management. The request for radio resource management includes information indicating the type of reference signal to be used in the radio resource management.

Abstract: System-wide uplink band gain control in a distributed antenna system (DAS) based on per-band gain control of remote uplink paths in remote units is disclosed. In one embodiment, for each uplink band in the DAS, a gain control system receives remote uplink band power measurements for each remote uplink path for the uplink band. Based on these power measurements, the gain control system determines if the uplink gain of all of the remote uplink paths of the plurality of uplink paths of the uplink band should be adjusted. If the uplink gain of the remote uplink paths of the uplink band should be adjusted, the gain control system directs a remote uplink gain control circuit for each remote uplink path of the uplink band to adjust the uplink gain by a defined remote uplink band gain level.

Abstract: Embodiments of the present disclosure describe devices, methods, computer-readable media and systems configurations for configuration of downlink coordinated multi-point (CoMP) communications in a wireless communication network. A user equipment (UE) may receive channel state information (CSI) reference signal (RS) parameters, from an evolved Node B (eNB), for individual transmission points of a coordinated multi-point (CoMP) Measurement Set including a plurality of transmission points. The UE may generate CSI-RS feedback information for the individual transmission points of the CoMP Measurement Set, and may transmit the generated CSI-RS feedback information for one or more of the individual transmission points to the eNB. The UE may receive a transmission from the eNB updating the individual transmission points included in the CoMP Measurement Set.

Abstract: Methods and apparatus at an evolved Node B (eNB) and user equipment (UE) in cells operating in time division duplex with a first configuration and having a neighbor cell eNB operating in time division duplex with a second configuration, the methods and apparatus: identifying potential eNB-to-eNB; UE-to-UE; eNB-to-UE; and UE-to-eNB interference. Further methods and apparatus to report interference including enumerated interference types to neighbor cell eNBs. Further, methods and apparatus for interference mitigation.

Abstract: A method in a wireless communication terminal is disclosed. The method includes receiving a first signal including a desired second signal and an interference component, wherein the interference component includes at least a third signal transmitted in an Almost Blank Subframe (ABS) by a neighbor cell, and configuring the wireless communication terminal to employ interference reduction to process the first signal based on a configuration of the interference component.

Abstract: A system and method of scheduling communication in a wireless communication network are provided. A first access node can receive an uplink scheduling request from a wireless device. The first access node can receive a first interference indicator from a second access node when the wireless device is located at the cell edge. A first scheduling scheme for the first access node and a second scheduling scheme for the second access node can be determined based on the uplink scheduling request and the interference indicator. The uplink portions of the first scheduling scheme do not overlap the uplink portions of the second scheduling scheme. The first access node can instruct the wireless device to communicate uplink data to the first access node during the uplink portions of the first scheduling scheme and to communicate uplink data to the second access node during the uplink portions of the second scheduling scheme.

Abstract: According to one embodiment, a method includes selecting a first transmission site from a plurality of transmission sites based on the quality of a first channel between the first transmission site and an endpoint. The method further includes determining a first precoding matrix corresponding to the first transmission site. The first precoding matrix may be applied to data transmitted by the first transmission site to the endpoint. The method further includes determining a second precoding matrix corresponding to a second transmission site of the plurality of transmission sites. The second precoding matrix may be determined based on at least a first spatial direction that is calculated based on at least the first channel.

Abstract: Providing for noise estimation in wireless communication, and particularly for access request signals transmitted by a user equipment (UE), is described herein. By way of example, a wireless signal receiver can employ unused signal dimensions of a wireless network for noise estimation. In addition, the unused signal dimensions can be selected for time-frequency resources that are associated with a particular wireless channel, in order to obtain a noise estimate for that channel. By employing unused signal dimensions, a noise measurement is likely to include no other signal transmissions, and provide an accurate estimate of noise on that channel. According to various aspects of the subject disclosure, one or more Chu sequences employed for signal transmissions, root sequences thereof, or one or more cyclic shifts of a root sequence can be employed for the unused signal dimension.

Abstract: An operating mode switching method for a electronic device is disclosed. The operating mode switching method includes receiving a notification message via a proximity-based wireless communication technology; switching from an initial operating mode to an environmental operating mode corresponding to the notification message; and switching from the target operating mode back to the initial operating mode when not effectively receiving an environmental signal corresponding to the notification message via a short-ranged wireless communication technology.

Abstract: A high-power point (110) and one or more low-power points (120) transmit signals that are associated with the same cell-identifier in a heterogeneous cell deployment. The coverage areas corresponding to the low-power points (120) fall at least partly within the coverage area for the high-power point (110), so that mobile stations (130) within range of a low-power point are also within range of the high-power point (110), from a downlink perspective. The same CRS signals are transmitted by both the high-power (macro) point (110) and some or all of the low-power (pico) points (120). At the same time, the network transmits CRS-based PDSCH for a particular UE on both the high-power point (110) as well as on some or all of the low-power points (120). In some embodiments only a subset of the points, e.g., those points that the UE hears sufficiently well, participate in the PDSCH transmission using CRS for channel estimation.

Abstract: A method and apparatus for selecting a carrier in a wireless communication system is provided. A pico eNodeB (eNB) transmits a carrier information request message including a request of information on carriers used by a macro eNB, and receives a carrier information response message as a response of the carrier information request message, the carrier information response message including the information on carriers used by the macro eNB, the information on carriers indicating information on user equipments (UEs) corresponding to the carriers used by the macro eNB. The pico eNB selects a primary cell (PCell) of the pico eNB based on the received information on carriers used by the macro eNB.

Abstract: A method of maximum output power configuration with UE preference in carrier aggregation is provided. A UE configures multiple component carriers (CCs) with carrier aggregation for communicating with a serving base station in a mobile communication network. The UE determines channel condition of multiple serving cells over the corresponding multiple CCs. The UE then determines maximum output power for each CC based at least in part on the corresponding channel condition of each CC. Finally, the UE transmits power headroom report (PHR) for each CC to the serving base station, wherein the PHR is calculated based on the determined maximum output power. As a result, the reported PH information is channel condition dependent, which can be used by eNB for facilitating better transmission scheduling.

Abstract: A method and system that facilitates operation of autonomous equipment by providing a mission planner to maintain line-of-sight contact between a plurality of coordinated machines, including a method for maintaining line-of-sight (LoS) communication between a plurality of machines that creates a mission plan for a work site that includes a path plan for each of the plurality of machines that maintains the line-of-sight communication between the plurality of machines by taking into account a topography for the work site; and loads the path plan for each respective one of the plurality of machines into each respective one of the plurality of machines, wherein the path plan specifies a machine travel path for each respective one of the plurality of machines.

Abstract: A method includes receiving at user equipment an indication of a subset of scheduling constraints for interference mitigation and cancelation and performing interference mitigation and cancelation utilizing the subset of scheduling constraints.

Abstract: A method for suppressing noise of a first signal captured via a primary microphone is provided. A primary and a reference microphone are arranged on a communication device to capture noise and intermittent speech. A determination is made whether the first signal comprises non-stationary signal components or substantially stationary noise, and whether the first signal comprises substantially far-field noise in case it was determined that it comprises non-stationary signal components. A noise power spectrum estimate of the first signal is updated with a stationary noise power spectrum estimate if the first signal is considered to comprise substantially stationary noise or a far-field noise power spectrum estimate if the first signal is considered to comprise substantially far-field noise. A frequency response is computed on the basis of the estimated noise power spectrum. Noise from the first signal is suppressed by applying the frequency response on the first signal.

Abstract: A receiver 10 and method in the receiver for cell search to find an actual base station having a carrier frequency in a radio communications network 1. The receiver detects a first signal representative of a base station 12, 14, 16, 18 by performing slot synchronisation, frame synchronization, cell identification, measurement of a signal quality of the first signal and comparison of the measured signal quality with a first threshold value. When a first signal having a signal quality that is greater than the first threshold value has been detected, the receiver searches for at least one second signal representative of a base station for at least one frequency offset comprised in a set of offsets S3. Further, when one or more second signals are detected, the receiver selects the signal with the highest signal quality, and detects a broadcast radio channel representative of a base station for the selected signal.

Abstract: The present invention provides a method of forming clusters of cells in a wireless communication system. The method includes accessing information generated by measuring channel conditions for at least one mobile unit and a plurality of cells in the wireless communication system. The method also includes adding more than one of the plurality of cells to at least one cell cluster based on the accessed information and coordinating communication between the cells in each cell cluster and the mobile unit(s).

Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for executing a channel state information (CSI) report in a wireless communication system, and a device therefor, the method comprising the steps of: composing a plurality of CSI information blocks corresponding to a plurality of serving cells in a first set; and transmitting, in a first subframe, a physical uplink shared channel (PUSCH) signal including the plurality of CSI information blocks, wherein, when a predetermined serving cell with limited CSI generation is included in the plurality of serving cells, the CSI information blocks corresponding to the predetermined serving cells include a specific CSI related to a second subframe, and the second subframe is a subframe having a CSI report executed before the first subframe.

Abstract: A method for selecting a carrier in a wireless communication system is provided. A home eNodeB (HeNB) receives a carrier information response message as a response of the carrier information request message, and selects a primary cell (PCell) of the HeNB based on the received information on carriers used by the pico eNB. The carrier information response message includes the information on carriers used by a pico eNB.

Abstract: One aspect of the teachings herein involves the advantageous use of learned statistical information to improve inter-cell interference coordination (ICIC). The network uses historical signal quality measurements collected over time for wireless communication devices operating within its coverage areas to identify those geographical areas where devices generally experience significant levels of patterned interference. In an example case, the network develops a “map” of the geographical areas that are affected by the transmission patterns of neighboring nodes, and it applies the map to ICIC operations, wherein the serving nodes associated with the affected areas incorporate knowledge of the interfering transmission patterns into the ongoing scheduling of users operating in the affected areas.

Abstract: Methods and apparatus for frequency offset estimation and correction prior to preamble detection of DSSS signals. An integrated circuit is disclosed including a receiver circuit having an input coupled to receive a DSSS signal, the receiver circuit configured to sample the DSSS signal and to output a sequence of digital samples; carrier frequency offset estimation logic configured to perform a carrier frequency offset estimation on the digital samples; carrier frequency correction logic configured to correct the carrier frequency of the sequence of digital samples using the carrier frequency offset estimation and to output a sequence of corrected digital samples; offset quadrature phase shift keying (O-QPSK) demodulation logic configured to perform demodulation on the corrected digital samples and further configured to output symbols corresponding to the corrected digital samples; and preamble identification configured to identify and detect a preamble sequence in the symbols.

Abstract: A method for cancelling interference performed by a terminal in a wireless communication system is disclosed. The method includes transmitting an interference information request and Interference Cancellation (IC) scheme information to a serving Base Station (BS), receiving from the serving BS interference information determined according to the interference information request and the IC scheme information, and cancelling interference using the interference information. The IC scheme information may be transmitted when the terminal is to transmit the interference information request and an Interference to Noise power Ratio (INR) exceeds a threshold.

Abstract: UE-assisted management of advanced radio link feature in a wireless communication network may include a network entity determining that a mobile entity is capable of communicating with one or more base stations using a set of radio link configurations, receiving a request from the mobile entity to restrict use of at least one of the radio link configurations, and restricting use of the at least one of the radio link configurations for communicating with the mobile entity, based on the request. The request may indicate a reason for the restriction, and the network entity may determine whether to restrict based on the reason. Once a radio link configuration is restricted, it may similarly be unrestricted based on a subsequent UE request, or based on expiration of a time period.

Abstract: In a system and method for maintaining the spatial stability of a sound field a background noise estimate may be estimated for each of a first signal and a second signal. A first gain coefficient may be calculated responsive to the first audio signal and the background noise estimate of the first audio signal. A second gain coefficient may be calculated responsive to the second signal and the background noise estimate of the second signal. The gain coefficients may be calculated using one or more gain coefficient calculators. A common gain coefficient may be selected from one of the first gain coefficient and the second gain coefficient. The selected common gain coefficient may be one that results in a least amount of audio signal modification and may be applied to each of the first signal and the second signal.

Abstract: Parameters associated with an interfering downlink transmission may be determined at the UE or may be signaled to the UE from an eNodeB. The parameters may be actual parameters or hypothetical parameters. Based on the parameters, the UE may determine a metric that reflects an amount of interference cancelled from the interfering data channel transmission. The UE determines a quasi-clean channel state information and/or interference efficiency based on the parameters. The UE may transmit the quasi-clean CSI and/or the interference efficiency to the eNodeB.

Abstract: A wireless communication system grey-lists those channels that interfere with channels used by a second wireless communication system. The wireless communication system reduces the rate at which the grey-listed channels are utilized in the channel-hopping pattern, but does not completely eliminate use of the grey-listed channels.

Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and device for communication between terminals in a wireless communication system. According to the present invention, a resource configuration method, a channel configuration method, a transmission power control method, etc. for communication between terminals can be provided.

Abstract: A method for reducing inter-cell interference (ICI) in a mobile communication system controls transmission signal power of an uplink signal from a terminal based on signal power measurement for a signal received from a base station of a neighboring cell. A terminal receives a signal from a base station of a neighboring cell via a wireless channel, measures a channel response against a threshold value across an applicable frequency band by using the received signal, determines a transmission signal power for each frequency band used for data transmission based on the measured channel response, and transmits data to a home cell base station according to the transmission signal power for each frequency band. The terminal may measure a channel response based on signals received from multiple base stations in multiple neighboring cells, and may also evaluate signal power of a signal transmitted from the home cell.

Abstract: A transmit power control method of a first station in a wireless LAN (WLAN) system includes: receiving path loss information from an (access point) AP, the path loss information containing a maximum value among path losses between the AP and at least one or more stations included in the WLAN system; controlling a transmit power by using the path loss information; and transmitting a frame according to the controlled transmit power. In said controlling the transmit power by using the path loss information, the transmit power is controlled by using a path loss obtained by adding the maximum value and a path loss between the first station and the AP or by using the path loss between the first station and the AP.