Abstract: Provided herein are a method for receiving, by a first device, location information of a second device in a wireless communication system and a device for supporting the same. The method may include the steps of receiving a physical sidelink control channel (PSCCH) from the second device, and receiving location information of the second device from the second device through a physical sidelink shared channel (PSSCH) related to the PSCCH.

Abstract: A method, device, storage medium and system for determining a time-domain resource determination are provided. The method includes that: allocation information for scheduling a time-domain resource is received from a network device (S401), the time-domain resource to be scheduled including a time-domain resource required by channel transmission; a time-domain position is determined for the time-domain resource to be scheduled based on a preset rule according to UL/DL time-domain resource configuration information and the allocation information; and channel transmission is performed with the network device through the time-domain resource to be scheduled according to the time-domain position corresponding to the time-domain resource to be scheduled.

Abstract: Methods and devices for grant-free uplink transmission in unlicensed spectrum are provided. A base station (BS) transmits grant-free resource configuration information to one or more electronic devices (EDs). The grant-free resource configuration information is used to configure the ED for GF uplink transmission in unlicensed spectrum. The GF resource configuration information includes GF ED group-specific resource configuration information indicating GF ED group-specific time-frequency (T/F) resources of the unlicensed spectrum for GF uplink transmission. The ED(s) transmit grant-free uplink transmissions over the unlicensed spectrum in accordance with the GF resource configuration information.

Abstract: According to certain embodiments, a method in a first network node scheduling time-division-duplexing (TDD) transmission for a first cell is provided. The method includes receiving transmission direction planning information from a plurality of other network nodes scheduling TDD transmissions for other cells. At least one transmission direction plan of the first network node is adapted based on the transmission direction planning information received from the plurality of other network nodes.

Abstract: A measurement method, a sending method, a measurement apparatus, and a sending system for interference coordination are disclosed. The measurement method includes: obtaining measurement configuration information, and obtaining measurement resource information for restrictive measurement; performing measurement according to the measurement configuration information and the measurement resource information for restrictive measurement, and obtaining a measurement result; and reporting the measurement result. Therefore, the interfered UE can perform measurement accurately and report the measurement result as a basis of handover.

Abstract: A disclosure of the present specification provides a method for selecting a cell for which to perform interference cancellation. The method may comprise the steps of: measuring reception power on the basis of reference signals received from neighboring cells; measuring the reception power of a data channel received from a serving cell; selecting a candidate cell among the neighboring cells by comparing the reception power of the data channel from the serving cell with the reception power from the neighboring cells; performing blind detection only for the candidate cell; measuring the reception power of a data channel from the neighboring cell on the basis of the blind detection; and when the reception power of the data channel from the neighboring cell is larger by at least a threshold than the reception power of the data channel from the serving cell, selecting the candidate channel as a cell for which to perform interference cancellation.

Abstract: Various embodiments provide for systems and methods of backhaul optimization. An exemplary system comprises a plurality of low power cells and a connector node. The connector node may be in communication with the plurality of low power cells. The connector node may be configured to receive demands from each of the plurality of low power cells. Each of the demands may indicate a demand at a predetermined time. The connector node may be further configured to determine a rate for each of the plurality of low power cells based on the demands of each of the low power cells and the assigned rate of the other of the plurality of low power cells. The connector node may be further configured to allocate capacity based on the determined rates.

Abstract: The present invention concerns a method and a device for adjusting the transmission of the signals transferred by a home base station through a wireless interface, the home base station is located in a cell of a base station, the home base station belongs to a first tracking area, the base station belongs to a second tracking area in which a mobile is supposed to be. The home base station: transfers through the wireless interface signals identifying a third tracking area which is different from the first and second tracking areas and which the base station and the home base station do not belong to, checks if a signal is received from the mobile terminal in response to the transferred signals identifying the third tracking area, enters an inter cell interference coordination procedure if the signal is received from the mobile terminal in response.

Abstract: A local radio access information transmitter (LRAIT) may be used in a communications area serviced by multiple different radio access technologies (RATs) allocated to different radio resources in different locations in the communications area. Each RAT is associated with RAT radio transceiver(s) for serving UEs in the communications area. The LRAIT is in addition to the RAT transceivers and located near a hotspot service area in the communications area. The LRAIT determines local radio access information (LRAI) including different RATs available in the hotspot service area and frequenc(ies) of operation allocated to each RAT in the hotspot service area, sends a registration message to a wide area radio access information controller, and based on a response therefrom, determines what radio resources to use to transmit the LRAI signals. The LRAIT transmits the LRAI signals for receipt by UEs in the hotspot service area using those radio resources.

Abstract: A base station for communicating with multiple groups of wireless communication devices is described. The base station includes a processor and executable instructions stored in memory that is in electronic communication with the processor. The base station determines a number of wireless communication devices. The base station also splits the number of wireless communication devices into groups. The base station further determines a precoding matrix for each group. The base station additionally transmits a beamformed signal to each group using the precoding matrix for each group.

Abstract: A broadband device (105) can detect a proximate narrowband transmission (152) from a narrowband communication device (145). The narrowband transmission (152) can be in close enough proximity (155) to at least one bearer channel of the broadband device (105) to result in interference on the narrowband reception (152) when the broadband device (105) is transmitting and the narrowband communication device (145) is concurrently receiving. Responsive to the detecting, the broadband device (105) can gate a broadband transmission (142) to ensure the broadband transmission (142) does not interfere with the proximate narrowband reception (152). In absence of detecting the narrowband transmission (152), the broadband transmission (142) from the broadband device (105) would not be gated.

Abstract: The present invention provides a method and a system for processing cell sleeping. The method comprises: a cell sending a sleeping request message to a neighbor cell (S102); according to the sleeping request message, the neighbor cell sends a corresponding sleeping response message to the cell (S104); according to the sleeping response message, the cell decides to perform sleeping or not (S106). The present invention ensures the continuity of user communication.

Abstract: In order to effectively determine an optimized radio resource, a radio communication system (100) includes a plurality of first base stations (111) and a plurality of first mobile stations (112) respectively connected to the plurality of first base stations (111). In the radio communication system (100), there are included calculation means (103) for calculating a statistic (130) by aggregating interference levels of radio waves between the plurality of first base stations (111) and second mobile stations (122) connected to a second base station (121) that forms a second cell (120) larger than a first cell (110) formed by each of the first base stations (111); and determination means (104) for determining, based on the statistic (130), a radio resource to be used by the plurality of first base stations (111) or the plurality of first mobile stations (112).

Abstract: For each nth carrier frequency bandwidth of a set of N carrier frequency bandwidths there is determined interference (in which n is an index and N is an integer greater than one). For each nth carrier frequency bandwidth, there is determined a number of cells operating on the nth carrier frequency bandwidth. The number of carrier frequency bandwidths available for selection is reduced to less than N by excluding from consideration at least one carrier frequency bandwidth based on the determined number of cells operating thereon. From the reduced number is selected a carrier frequency bandwidth for use by a host femto cell. In various specific embodiments: the carrier frequency bandwidth excluded from consideration has a maximum number of cells operating thereon; and/or closed subscriber group cells having path loss exceeding a threshold are excluded from the per carrier count; and/or only femto cells are included in the per carrier count.

Abstract: A method for enabling a mobile terminal to continue to be served by a home base station when the mobile terminal is in a coverage area of the serving home base station and the coverage area of the serving home base station starts superposing with a coverage area of another home base station having a same physical cell identity and being synchronized with the serving home base station, each home base station broadcasting the physical cell identifier in its coverage area. The method includes: determining that the coverage areas start superposing, determining at least one timing offset to be applied at a predetermined moment by at least one of the home base stations for transferring signals in its cell, transmitting to the mobile terminal the at least one timing offset and the moment, and applying the at least one timing offset at the moment.

Abstract: The present invention employs hierarchical modulation to simultaneously transmit information on different modulation layers using a carrier RF signal. Initially, first data to be transmitted is assigned to a first modulation layer and second data is assigned to a second modulation layer. In one embodiment of the present invention, the first and second data are assigned based on reliability criteria. The first and second modulation layers are hierarchical modulation layers of the carrier RF signal. Once assigned, the first data is transmitted using the first modulation layer of the carrier RF signal and the second data is transmitted using the second modulation layer of the carrier RF signal. In one embodiment of the present invention, information may be transmitted to one end user using one modulation layer, and information may be transmitted to a different end user using a different modulation layer.

Abstract: An apparatus and a method for a cluster-based power control at a macro base station in a wireless communication system are provided. The method includes broadcasting an interference allowance value determined based on a predefined aggregate interference to a femto cell, updating the interference allowance value with consideration of a channel activity for each femto cell group on a cluster basis, and when detecting a change in an aggregate interference generated due to femto cell power allocation, repeating determination of an interference allowance value so that a Quality of Service (QoS) of a macro cell user is met, and broadcasting the interference allowance value to a femto cell.

Abstract: A method of forming an adaptive antenna array includes calculating intra-unit phase relationships between antenna elements of a plurality of access units and measuring inter-unit phase relationships between the access units. An indication of a desired coverage area collectively produced by the plurality of access units is received. A set of weighting factors is determined. Each weighting factor is associated with an individual antenna element in the plurality of access units and the set of weighting factors provide the desired coverage pattern. Phase lock between the plurality of access units is maintained to control the desired coverage pattern.

Abstract: Systems and methods for frequency reuse in a multi-cell deployment model of a wireless backhaul network are shown. According to embodiments, a wireless backhaul network includes a plurality of cells, each of which includes one or more hubs supporting wireless backhaul communication utilizing a cell deployment geometry and wireless communication frequency assignments adapted to facilitate heterogeneous cell configurations within the wireless backhaul network. In particular, embodiments provide frequency planning for initial deployment, build out, and expansion of a plurality of cells providing wireless backhaul communication so as to implement a predetermined wireless frequency reuse pattern providing alternating utilization of a plurality of wireless communication frequencies by the cells of the backhaul network.

Abstract: Technologies are generally described for alleviating inter-cell interference experienced by relays in wireless networks such as cellular systems that rely on relays to facilitate some communication between end user devices and base stations (BTSs). A BTS serving a relay may gather information on resource blocks being used to communicate between the relay and an end user. Then, the BTS may send interference indication signals such as High Interference Indicators (HII) or related signals on behalf of sub-communications executed by entities within the cell. Another BTS of a neighboring cell receiving the signals may avoid scheduling on those resource blocks, if possible, thereby relieving the relay link from potentially significant interference.

Abstract: Ambiguity (e.g., confusion) associated with access point identifiers may be resolved by querying candidate target access points and/or by using historical records indicative of one or more access points that the access point has previously accessed. For example, messages may be sent to access points that are assigned the same identifier to cause the access points to monitor for a signal from an access terminal that received the identifier from a target access point. The target access point may then be identified based on any responses that indicate that a signal was received from the access terminal. A mapping may be maintained for that access terminal that maps the identifier to that access point so that the mapping may be used to resolve any future confusion associated with the use of that identifier by that access terminal.

Abstract: The present invention relates to a communication method supervised by an interference classification. For two couples of transmitting and receiving terminals having communications using the same radio resources and interfering with each other, a partition of the interference diagram into a plurality of distinct zones is determined, each zone corresponding to a particular processing. For an operating point of the transmitting and receiving terminals, the zone in which this point is located is determined, and the processing associated with that zone is performed in at least one of the receiving terminals.

Abstract: Systems and methodologies are described that facilitate improved resource partitioning and interference management in a wireless communication system. Techniques are described herein for the transmission and use of various types of signaling, such as Access Request commands, Reverse Link Special Resource Utilization Message (R-SRUM) signaling, Forward Link Special Resource Utilization Message (F-SRUM) signaling, and the like, for managing interference associated with range extension, restricted association networks, and other jamming scenarios. As described herein, downlink resource coordination and interference management are accomplished through the use of Access Request or R-SRUM signaling conducted in a unicast or broadcast fashion, and uplink resource coordination and interference management are accomplished through the use of F-SRUM signaling.

Abstract: Systems, methods, devices, and computer program products are directed to mobility control and performance prediction in directional wireless networks. Network coverage and connectivity are optimized. Convex and non-convex network modeling is implemented to provide adaptive topology control and mobility control within the network, whereby communication links are retained, released, or reconfigured based on their communication role within the network architecture. Optionally or alternatively, network health is monitored, future network failure or degradation conditions are predicted, and the network reconfigures responsive to the predictions to avoid the failure or degradation conditions.

Abstract: Methods and apparatus for beamforming for femtocells, such as in LTE wireless networks, to provide inter-cell coordination and interference mitigation are disclosed. A macrocell user equipment (UE) may determine information regarding an interfering femtocell node, such as a home eNodeB (HeNB). The information may be sent directly or indirectly, such as by a backhaul communication link, to the HeNB. The HeNB may adjust an output based on the information. The information may include spatial channel information, which may be used for beamforming at the HeNB output so as to mitigate interference in the direction of the UE.

Abstract: A spectrum use assessment server receives spectrum use data from each of plural electronic devices. The spectrum use data from each electronic device includes at least location of the electronic device and operating channel of the electronic device. The server determines a spectrum use coverage area of each electronic device and identifies an overlap in the coverage areas in which two or more of the electronic devices engage in competing spectrum use.

Abstract: Systems and methods control operation of a mobile communication device in a vehicle by determining if the vehicle is moving; if the vehicle is stationary, allowing calls to reach a cell tower; if the vehicle is moving and the mobile communication device is used, disabling a transmission from the mobile communication device to the cell tower; and if the vehicle is moving and an emergency phone sequence is dialed, allowing the transmission from the mobile communication device to the cell tower.

Abstract: Various embodiments provide for systems and methods of backhaul optimization. An exemplary system comprises a plurality of low power cells and a connector node. The connector node may be in communication with the plurality of low power cells. The connector node may be configured to receive demands from each of the plurality of low power cells. Each of the demands may indicate a demand at a predetermined time. The connector node may be further configured to determine a rate for each of the plurality of low power cells based on the demands of each of the low power cells and the assigned rate of the other of the plurality of low power cells. The connector node may be further configured to allocate capacity based on the determined rates.

Abstract: A method is disclosed to eliminate inter-cluster interference of user equipment located at the edge of a cluster of cells. The method operates by employing fractional frequency reuse (FFR) principles on clusters or combinations of cells in a wireless neighborhood, in which base stations in the cells coordinate their operations in a scheme known as coordinated multi-point transmission (CoMP). By using the FFR principles to single out edge users of the CoMP cluster, the method mitigates interference and increases throughput for the edge users.

Abstract: A cellular radio communication system includes a first mobile terminal, a base station that performs radio communication with first mobile terminals, a second mobile terminal, and a second base station that performs radio communication with second mobile terminals. In the downlink communication, the base station selects a high data rate mode when the radio interference from the base station to the second mobile terminals that are located close to an edge of a communication area of the second base station is small. The base station selects an interference mitigation mode in the downlink communication when the radio interference from the base station to the second mobile terminals that are located close to the edge of the communication area of the second base station is large. Thus, inter-cell interference control can be performed in collaboration with base stations in the radio communication system without having communication interface between the base stations.

Abstract: A mobile terminal communicating with a plurality of cells, including a serving cell, has a control unit. The control unit performs at least one control of (a) a first control for causing a path search unit to detect a path for the serving cell more preferentially than paths for cells other than the serving cell, (b) a second control for causing a finger assignment unit to assign a path detected for the serving cell preferentially over paths detected for cells other than the serving cell to a plurality of fingers, and (c) a third control for causing a reference frequency adjustment unit to adjust reference frequency so that the reference frequency is approximated to reference frequency of a base station controlling the serving cell.

Abstract: A mobile communication system wherein the upstream radio channel interference of a macrocell connection terminal with a femtocell base station can be reduced while the consumption of radio resources caused by increase in signaling is being suppressed. The macrocell connection terminal (401) performs, based on an instruction from a macrocell base station (402), an upstream channel transmission and further reports a peripheral-femtocell detection result obtained by a measuring unit to the macrocell base station. The macrocell base station (402) instructs the terminal to perform a peripheral-femtocell detection. The identifier of the terminal and the peripheral-femtocell detection result obtained by the terminal are transmitted to a network management apparatus (404).

Abstract: A method of reducing interference in a first wireless communications system, the first wireless communications system being operable in use to take part in a spectrum assignment process involving at least a second wireless communications system, the method comprising defining an exclusion zone in proximity to the first wireless communications system, the exclusion zone indicating that any mobile communications apparatus located within the exclusion zone is not permitted to communicate with the second wireless communications system using a portion of spectrum which was pre-assigned to the first wireless communications system and which is currently re-assigned to the second wireless communications system as part of the spectrum assignment process; and varying the local size of a part only of the exclusion zone in dependence on a level of interference inflicted on the first wireless communications system.

Abstract: A system comprises transceiver logic that receives signals on each of an array of frequencies. The transceiver logic is adapted to communicate using a first communication protocol. Processing logic couples to the transceiver logic. The processing logic identifies from among the array of frequencies a subset of shared frequencies that carry data transmitted using a second communication protocol. The processing logic adjusts frequency selection parameters in accordance with the identification. The processing logic uses the adjusted frequency selection parameters to select a target frequency from the array of frequencies to carry data.

Abstract: A frontend receiver of a user equipment (UE) is configured with multiple transform operations assigned to separate sets of cells. One set of cells includes the serving cell of the UE and at least one additional cell within a first offset range of the serving cell. Another set or sets of cells include additional interferer cells within another offset range of the serving cell. After tracking the common frequency/timing offsets of each set of cells the assigned transform operation for that set transforms the time domain samples into frequency domain symbols. The individual frequency/timing offsets for each cell within the set are then tracked.

Abstract: A method and an arrangement (400) for determining an admission control threshold for use in an admission control procedure are provided. The admission control procedure manages a first spectrum resource (R1). The first spectrum resource (R1) has a first spectrum resource capacity and a first available spectrum resource capacity, wherein the first available spectrum resource capacity has a time dependence. In a step (220), the admission control threshold is determined based on the first spectrum resource capacity and a measure of the time dependence of the first available spectrum resource capacity.

Abstract: A method for protecting communications between an aircraft and a spacecraft in outer space including flying the aircraft in the earth's atmosphere at an altitude above 40,000 feet from the earth, and preferably above 50,000 feet, and transmitting a signal from the aircraft to the spacecraft having a frequency within a range of 50-70 GHz. The method includes selecting the frequency of the signal based on the altitude of the aircraft and the elevation angle between the spacecraft the aircraft.

Abstract: The present invention discloses a method and system for triggering OI report. The method includes: a first terminal performing area division for its own coverage area to obtain layers of the coverage area of the first terminal; the first terminal determining a layer, in which a second terminal is located, of the coverage area of the first terminal according to maximum inter-cell interference intensity suffered by the second terminal currently; the first terminal computing PRBs needing to be computed according to status information of the interference suffered by the PRBs occupied by the second terminal, and setting a triggering threshold of the OI report used by the second terminal in the layer; and the first terminal triggering the OI report used by the second terminal when determining that the result of computing the PRBs is larger than the triggering threshold of the IO report.

Abstract: A method of forming an adaptive antenna array includes calculating intra-unit phase relationships between antenna elements of a plurality of access units and measuring inter-unit phase relationships between the access units. An indication of a desired coverage area collectively produced by the plurality of access units is received. A set of weighting factors is determined. Each weighting factor is associated with an individual antenna element in the plurality of access units and the set of weighting factors provide the desired coverage pattern. Phase lock between the plurality of access units is maintained to control the desired coverage pattern.

Abstract: A wireless communication apparatus, includes: a collision locating section for detecting a collision and determining a collision area in which the collision occurs, according to route requests received through an ad-hoc network based on an on-demand driving routing protocol, a relay node selecting section for selecting a relay node which is located outside the collision area and turn-off of which will not influence connectivity in the ad-hoc network, and a relay node controlling section for controlling the selected relay node to turn off in response to the selection of the relay node and keeping the selected node off if the collision in the collision area is alleviated or eliminated after the selected relay node is turned off.

Abstract: Systems and methodologies are described that facilitate improved resource partitioning and interference management in a wireless communication system. Techniques are described herein for the transmission and use of various types of signaling, such as Access Request commands, Reverse Link Special Resource Utilization Message (R-SRUM) signaling, Forward Link Special Resource Utilization Message (F-SRUM) signaling, and the like, for managing interference associated with range extension, restricted association networks, and other jamming scenarios. As described herein, downlink resource coordination and interference management are accomplished through the use of Access Request or R-SRUM signaling conducted in a unicast or broadcast fashion, and uplink resource coordination and interference management are accomplished through the use of F-SRUM signaling.

Abstract: A method of resource reservation request and resource reservation in a wireless communication system is disclosed. A method of resource reservation request of a mobile station in a wireless communication system with femto cells comprises transmitting a resource reservation request message to a macro base station to request a femto cell base station not to use resource used by the mobile station if interference from the femto cell base station is over a threshold; and receiving a resource reservation response message from a macro base station.

Abstract: In one embodiment, a method of transmitting includes assigning column vectors of a generalized orthogonal space time code matrix to coverage areas of a plurality of base stations such that each coverage area is assigned one column vector. The same data is transmitted from each of the plurality of base stations in the coverage areas such that the data transmitted in each coverage area is transmitted using the column vector assigned to the coverage area.

Abstract: Systems and methodologies are described that facilitate improved resource partitioning and interference management in a wireless communication system. Techniques are described herein for the transmission and use of various types of signaling, such as Access Request commands, Reverse Link Special Resource Utilization Message (R-SRUM) signaling, Forward Link Special Resource Utilization Message (F-SRUM) signaling, and the like, for managing interference associated with range extension, restricted association networks, and other jamming scenarios. As described herein, downlink resource coordination and interference management are accomplished through the use of Access Request or R-SRUM signaling conducted in a unicast or broadcast fashion, and uplink resource coordination and interference management are accomplished through the use of F-SRUM signaling.

Abstract: An object of the invention is to provide a wireless communication system in which the load of each cell and interference between cells are taken into account. In a handover-candidate base station and a handover-source base station, parameters for interference-reducing scheduling and handover facilitating processing are adjusted based on the mutual load information. When the handover-candidate base station, to be used for load balancing, is a large-diameter cell, transmit power control and frequency scheduling are adjusted by taking account of the load state at a cell edge. When the handover-source base station has a small-diameter cell, the number of terminals to be handed over is adjusted by taking account of the load state of the handover-candidate base station. Thus, both of interference control and load balancing are achieved.

Abstract: The method is for managing operation of a first apparatus belonging to a first communication system and exchanging within the first communication system a multi-carrier modulated signal on several sub-carriers. The method includes detecting at the first apparatus the presence of an interfering signal emitted from a victim apparatus on a sub-carrier. The method may also include determining at the first apparatus the path loss between both apparatuses, determining from the path loss and from an allowed interference level at the victim apparatus a maximum allowed transmit power on the sub-carrier of a multi-carrier modulated signal to be transmitted from the first apparatus, and adjusting within the first apparatus the processing of the multi-carrier modulated signal to be transmitted in accordance with the maximum allowed transmit power.

Abstract: In a system including one or more femtocells within a service area of a macrocell, a method includes: (a) receiving from a base station information regarding available resources at each femtocell; (b) measuring a signal-interference-to-noise ratio (SINR) at a mobile station relative to the macrocell and each femtocell; and (c) selecting for the mobile station one of the femtocells for a hand-off, wherein the femtostation is selected based on the combined capacity of the macrocell and the femtocells after the hand-off.

Abstract: The present disclosure generally describes methods and systems for spectrum sensing within a cognitive radio. Example methods may include but are not limited to scanning radio frequencies within an initial portion of the radio frequency spectrum and analyzing the frequencies scanned within the initial portion. Example methods may also include but are not limited to dividing the initial portion into first and second portions, and selecting one of the first and second portions for further analysis.

Abstract: Embodiments of the present invention provide a method and a device for adjusting a frequency band mode, which relate to the field of wireless communications. The method includes: according to pre-stored base station location information and an azimuth of an antenna of each base station, displaying each base station and the antenna of each base station on a map by using a base station identifier and an antenna identifier respectively; and according to a pre-stored range of cells covered by each antenna and environment information of each cell, obtaining a configured neighboring cell of each cell, and displaying the cell covered by each antenna and the configured neighboring cell of each cell on the map.

Abstract: A wireless access point broadcasts a unique RF domain identifier for each supported service set per radio. Within a wireless local area network (“WLAN”) the RF domain identifier is unique for each supported service set, and hence identifies the service set. In addition to identifying the service sets supported by the access point, RF domain identifiers may be used to adjust transmit power in order to differentiate service sets. For example, if a first access point receives a beacon with an RF domain identifier transmitted by a second access point, the transmit power of communications associated with the service set associated with the received RF domain identifier is reduced at the first access point if that service set is also supported on the same radio by the first access point. In one embodiment the first and second access points both reduce transmit power until the beacons are no longer received by the respective nearby access point.