Abstract: Disclosed is a radio communication device capable of improving the usage efficiency of resources in multi-stage relay to reduce the amount of delay of a relay signal and improving the reception quality of signals by a relay station or a base station. A transmission determining unit 16 determines whether to transmit the relay signal and whether to transmit ACK/NACK on the basis of whether there is an error in the relay signal, and on the basis of ACK/NACK received from a one-hop-downstream radio communication device. An MCS determining unit 17 provided in the transmission determining unit 16 determines an MCS for the relay signal. A transmission instruction generated by the transmission determining unit 16 is output to a buffer 11 and an ACK/NACK generating unit 19. The determined MCS is output to an error correction coding unit 12 and a modulation unit 13. The ACK/NACK generating unit 19 generates ACK when there is no error in the relay signal, and generates NACK when there is an error in the relay signal.

Abstract: To detect a provider of communication parameters, a communication apparatus executes control so that when a signal for searching for the provider of the communication parameters is sent, an apparatus which does not serve as the provider decreases the frequency of responding to the search signal and the provider increases the frequency of responding to the search signal.

Abstract: An apparatus for communicating between a mobile device, and a plurality of transceivers. The apparatus includes a first transceiver which transmits to the mobile device on any one of a plurality of channels. The apparatus further includes a second transceiver which transmits to the mobile device on any one of the plurality of channels.

Abstract: A method for circulating a message to a group of people, including sending a circulated message and a distribution list comprising identifiers for a plurality of mobile communicators, by a first mobile communicator, and sequentially receiving the circulated message and a distribution list, by a next mobile communicator, and, if the received distribution list is non-empty, then (i) selecting one of the mobile communicators identified in the distribution list, (ii) modifying the distribution list by removing the identifier of the selected mobile communicator therefrom, and (iii) sending the circulated message and the modified distribution list to the selected mobile communicator.

Abstract: The performance of a repeater path may be predicted by identifying the parameters of a transmitting earth, a receiving earth station, and the component performance parameters of at least one of the gain, loss and noise figure of at least one of repeater components in the repeater path. The component performance parameters, the transmitting and receiving earth station parameters, and the predicted repeater performance may be communicated and/or displayed via a graphical user interface.

Abstract: A data processing method, an equalizer, and a receiver in a wireless communication system including a relay station are provided. The data processing method includes: receiving a base station signal from a base station; receiving a relay station signal from a relay station; determining a propagation delay between the base station signal and the relay station signal; generating an equalizing signal in which interference generated between the base station signal and the relay station signal is alleviated in consideration of the propagation delay; and recovering information bits transmitted by the base station from the equalizing signal. According to an exemplary embodiment of the present invention, it is possible to alleviate performance deterioration due to an interference problem generated in a relay system.

Abstract: It is advantageous for present invention to suitably determine amounts of transmission data for links in a multilink communication. In a mobile communication system (10) for making a multilink communication through which a communication is performed by using a plurality of links relayed by a plurality of base station apparatus (30), respectively, each of the base station apparatuses (30) acquire transmittable data amount information representing amounts of data able to be transmitted through the respective links by a mobile station apparatus (20) or a server apparatus (40), and the mobile station apparatus (20) or the server apparatus (40) determines amounts of transmission data to be transmitted to the respective links in correspondence to the transmittable data amount information, and transmits communication data of amounts of data corresponding to the amounts of transmission data determined to the respective links.

Abstract: A mobile communication system employs moving base stations moving in the direction of flow of traffic moving along a roadway. The moving base station communicates with fixed radio ports connected to a gateway office. A plurality of moving base stations are spaced apart on a closed loop and move with the flow of traffic along one roadway on one leg of the loop and with a flow of traffic on another roadway in another leg of the loop. The moving base stations communicate with a plurality of fixed radio ports connected by a signal transmission link to a gateway office which, in turn, is connected to the wire line network. The moving base stations are each provided with a pair of directional antennas with one antenna directed toward the flow of traffic and another antenna directed to the fixed radio ports.

Abstract: An embodiment of the present invention provides a method, comprising optimizing the location and configuration of relay stations in a wireless network that includes at least one base station and at least one relay station by taking into account at least one or more of the following: the distinct antenna heights of said at least one base station and said at least one relay station; the data dependency between said at least one relay station and said at least one base station; the service outage of said wireless network; and the network throughput of said wireless network.

Abstract: Systems, methods and apparatus a provided for calibrating actual output power of a transmit power sensor for closed loop power control using a quality metric such as error vector magnitude (EVM) to improve power detection accuracy. In aspects, a method for correlating an output of a transmit power sensor with actual output power of a wireless transmitter includes deriving a characteristic correlation between an actual output power of a set of transmit amplifiers and an output power and of a set of corresponding power detection circuits over a range of transmit power levels in a corresponding set of wireless devices; storing the characteristic correlation in a wireless device that is not part of the set from which the characteristic correlation was derived; and sensing an output of a transmit power sensor of the device while the transmitter of the device transmits according to one or more gain settings.

Abstract: Apparatus and methods relating to synchronization of communication equipment are disclosed. Synchronization information received from a bonded communication link can be used to synchronize local and/or remote communication equipment, such as femtocell sites coupled to nodes in a ring network. This may involve isolating a frequency reference signal from a DSL (Digital Subscriber Line) communication link which is a constituent link of a bonded communication link, for example. In a ring network, received synchronization information could be used in synchronizing a locally connected installation of communication equipment, and passed for transmission in the ring network for synchronizing other communication equipment. Such dropping and passing of an analog frequency reference signal could be applied in networks having other topologies as well. At least some embodiments of the invention are applicable to optical links.

Abstract: A method for providing wireless communication services via efficient management of frequency bands includes transmitting uplink communications to a first system on a first frequency. The method also includes receiving downlink communications from the first system on a second frequency. The method may also include transmitting uplink communications to a second system by re-using the second frequency. The method further includes receiving downlink communications from the second system by re-using the first frequency.

Abstract: Methods, systems, and computer-readable media provide for utilizing a repeating function to improve quality of service. According to embodiments, a method for utilizing a repeating function to improve quality of service is provided. According to the method a first mobile cellular device is selected. An instruction is transmitted to the first mobile cellular device instructing the first mobile cellular device. The instruction causes the first mobile cellular device to relay communications between the second mobile cellular device and the cellular service provider. The first mobile cellular device thereby provides the repeating function for the second mobile cellular device.

Abstract: A repeater installed in a moving object is provided, in which a link antenna module has a plurality of link antennas steered to predetermined directions, for wirelessly communicating with a Base Transceiver Station (BTS), a link antenna path setting module selects at least one of the plurality of link antennas of the link antenna module and connects a path between the selected link antenna and a rear end, a service antenna module has at least one service antenna installed within the moving object, for wirelessly communicating with Mobile Stations (MSs) within the moving object, a relay signal processing module is connected to the link antenna module through the link antenna path setting module and processes transmission and reception relay signals between the link antenna module and the service antenna module, a movement information module measures current movement information about the moving object and provides the current movement information, a received signal measuring module measures a received signal o

Abstract: A device may receive a signal strength indicator associated with a connection between a mobile device and a first base station. The signal strength indicator may indicate a strength of a radio signal received by the mobile device from the first base station. The device may transmit the signal strength indicator to a network device, and may receive, from the network device, a first notification to activate a second base station based on the signal strength indicator. The device may activate the second base station based on the first notification. The second base station may provide temporary wireless connectivity for the mobile device.

Abstract: A GSM or UMTS mobile telecommunications network is disclosed. In addition to the conventional radio access network comprising the base stations, one or more additional access points are provided. An access point is connected to the network core by an IP transport broadband connection. The access point is configured to appear to the mobile terminal as a conventional base station—that is, it communicates with the mobile terminal using GSM or UMTS transport protocols and does not require any modification to a standard GSM or UMTS mobile terminal. Access Points are typically not under the direct control of the network provider. Arrangements are disclosed which allow the network provider to verify that the access point a mobile terminal is about to commence communicating through is at a particular location. Differential charging may be performed in dependence upon a subscriber's location.

Abstract: A network selection device is described comprising a determining circuit configured to determine an expected suitability level of a communication connection for a communication terminal provided by means of a cellular radio communication network and by means of a relaying subscriber terminal of the cellular radio communication network and a decider configured to decide, based on the determined expected suitability level, whether the communication terminal should use a communication connection provided by means of the cellular radio communication network and by means of the relaying subscriber terminal of the cellular radio communication network.

Abstract: A wireless communication system is provided. The wireless communication system includes a wireless relay and a mobile terminal. The wireless relay is coupled to a phone network. The mobile terminal is physically coupled to the wireless relay to make a voice communication with the phone network via the wireless relay. Further, the mobile terminal and the wireless relay exchange control data and voice data corresponding to the voice communication over a short-range wireless link based on one of a transparent mode and a translation mode. A signaling connection is established on an asynchronous connection-oriented logical (ACL) transport channel between the mobile terminal and the wireless relay for exchanging the control data, and a voice connection is established on a synchronous connection oriented (SCO) channel between the mobile terminal and the wireless relay for exchanging the voice data.

Abstract: Systems and methodologies are described that facilitate creating antenna ports to correspond to two or more groups of user equipment (UEs). The subject innovation can organize two or more groups of user equipment and signal to each of the two or more groups a respective antenna port. The subject innovation can further communicate mapping information, a reference signal, or delay related to a linear combination in order to identify antenna ports. Based on such communicated information, the reference signal can be decoded in order to identify each antenna port.

Abstract: A beam-forming system comprises a cooperative array of wireless terminals coupled to at least one wireless wide area network (WWAN) and communicatively coupled to a wireless local area network (WLAN) configured to provide information exchanges between the wireless terminals. A cooperative beam-forming system employing the WLAN provides antenna-array processing benefits (such as frequency reuse, interference rejection, array-processing gain, antenna-switching diversity) to the individual wireless terminals. A network access operator facilitates network control functionality between the WWAN and the cooperative array of wireless terminals.

Abstract: In accordance with aspects of the present invention, a method, apparatus and system for learning antenna weighting factors in a communication system including relay nodes. In one embodiment, an apparatus (e.g., a relay node (325)) for use with a communication system includes a first antenna (330) configured to receive a first signal including a pilot training sequence from a source node (305) and a second signal including a power-based feedback signal or a signal-to-noise based feedback signal from a destination node (350). The apparatus also includes a second antenna (335) configured to transmit at least a portion of the first signal with an antenna weighting factor (e.g., a perturbed antenna weighting factor). The apparatus further includes an antenna weighting factor module (340) coupled to the first antenna (330) and configured to iteratively adjust the antenna weighting factor in response to the second signal.

Abstract: A method for radio communication between a device and radio stations of a radio communications system having a plurality of radio stations involves transmitting messages from the transmitting radio station to the receiving radio station either directly, or via a routing the passes through one or more radio stations that forward said messages. The device transmits information, which related to one or more routings between a respective transmitting radio station and a receiving radio station and to radio resources that are to be used for at least one message transmission via the routing or routings, to radio stations.

Abstract: A method for mobile communication and a system thereof are provided. The system for mobile communication includes a main base station and a plurality of sub-communication devices. The sub-communication device is one of a sub-base station and a user equipment. The sub-base stations and the user equipments are located in the macrocell of the main base station. The method includes the following steps. First, locations of the sub-communication devices are obtained. Then, the sub-communication devices are grouped based on the locations of the sub-communication devices. And, an allocation of resource blocks is obtained according to the grouping results. The sub-communication devices receive the allocation of resource blocks for control signaling and data transmission. And, the usage of same resource blocks are enabled by the sub-base station allocated in the same resource blocks in response to receipt of the allocation.

Abstract: Certain aspects of the present disclosure provide various mechanisms that allow a user equipment to convey information regarding one or more attributes to a base station during a random access (RA) procedure. The attributes may include, for example a capability of the UE (e.g., to support a particular feature or version of a standard) or a condition of the UE (e.g., if it is currently experiencing an interference condition).

Abstract: A report message may be transmitted with collaborated information related to the occurrence of an emergency event. A plurality of devices, such as mobile communications devices, that are out of range of a communications network can communicate via direct communication, such as device-to-device communication, to corroborate characteristics that are indicative of an occurrence of an emergency event. Information related to the occurrence may be collaborated amongst the plurality of devices. A transmitting device, which may be one of the plurality of devices that corroborates characteristics or collaborates information, may generate and transmit the report message comprising the collaborated information. A receiving device may provide the message over a communications network, or the report message may continue to be handed off between devices capable of direct communication, the message eventually reaching a device that is within range of the communications network.

Abstract: Techniques for providing broadcast services on spot beam satellite are provided. These techniques enable the mission of a spot beam satellite system to be changed from providing spot beam transmission to broadcast transmissions, and vice versa, without requiring that the satellite be reconfigured. Broadcast data may be encoded and transmitted concurrently on a plurality of spot beams. According to some embodiments, the broadcast data may be encoded using a space-time code and/or forward error corrected (FEC) encoded to enable a receiver to correct errors in the signal received from the spot beam satellite.

Abstract: A frequency band of 12.5 kHz that two repeaters (2A), (2B) are allowed to utilize is divided into two frequency bands, divisional frequency bands of 6.25 kHz are allocated to respective repeaters (2A), (2B), the repeater (2A) which is one specific repeater suspends transmission of a signal at a certain time set beforehand, another repeater (2B) is instructed to suspend transmission of a signal, and after signal transmission at individual repeaters (2A), (2B) are suspended, the repeater (2A) transmits a defined CW-ID signal which is a call signal given to the whole two repeaters (2A), (2B).

Abstract: An operation channel in a multi-hop network is determined. The network uses a set of channels, and one of the nodes is a network management node. The operation channel is selected in the network management node. Then, the network management node broadcasts a channel information packet including the operation channel using all channels. The channel information packet is received in each of other nodes, either directly from the network management node or from an intermediate node that received and rebroadcasted the channel information packet. Lastly, the operation channel in each node is set according to the channel information packet until the network is formed.

Abstract: In order to achieve effective utilization of radio communication resource, there is provided a relay station, for relaying a signal to be transferred between a radio base station and a radio terminal, which includes a storage section adapted to store communication controlling information for communication control with the radio terminal, a base station side signal reception section adapted to receive, from the radio base station, scheduling information in communication between the radio base station and the radio terminal through the relay station, a complementation section adapted to complement contents of the scheduling information received by the base station side signal reception section in accordance with the communication controlling information stored in the storage section, and a terminal side signal transmission section adapted to transmit the scheduling information whose contents are complemented by the complementation section to the radio terminal.

Abstract: A radio terminal according to the present invention comprises a data amount determination unit (135) configured to determine whether or not a total amount of data to be transmitted in the communications between all radio terminals constituting a tree-structured network and a radio base station exceeds a transmissible data amount in a communication bandwidth assigned to the communications between the communication unit and the radio base station; and a message processor (132) configured to transmit an inquiry message to the lower-level radio terminal when the data amount determination unit determines that the total data amount exceeds the transmissible data amount, the inquiring message inquiring whether or not direct communications with the radio base station are possible.

Abstract: Provided is a communication system that can allocate resources on an uplink for a CQI report, and can reduce the overhead of the CQI relay transmission from a relay station apparatus to a base station apparatus. To each mobile station apparatus (501, 502) that transmits CQI directly to a base station apparatus (500), resource blocks on a base station apparatus uplink to be used for the transmission of each CQI to the base station apparatus are allocated. Resource blocks on the base station apparatus uplink to be used for each relay station to relay-transmit to the base station apparatus CQI received from the mobile station apparatuses are allocated on the basis of the allocation result of resource blocks on a relay station apparatus uplink for each relay station apparatus (510, 520).

Abstract: A wireless communication system, an apparatus, and a method for transmitting information to describe network topology of the wireless communication system in a mobile multi-hop relay standard are disclosed. The system can either be a two-hop relay station system or a multi-hop relay station system. The apparatus can use a CDMA ranging code set to transmit information and manage other apparatuses of the wireless communication system under a mobile multi-hop relay standard. The CDMA ranging code set comprises a mobile station (MS) code set and a relay station (RS) code set. The MS code set is used to transmit information from the MS to the base station (BS). Likewise, the RS code set is used to transmit information from the RS and the BS.

Abstract: An arrangement for wireless communication includes apparatus operable to establish a region of wireless communications capability, and operable to establish communication with a communications hub by way of a backhaul. The apparatus is operable to determine availability of communication facilities on the backhaul and, in response to a request by a communications device operating with the use of the region of wireless communications capability, is operable to offer the backhaul implemented communication facilities to the communications device subject to the existence of a fault in offering of said facilities. The apparatus includes fault detection means operable to detect the presence of a fault. In the event of a fault being detected, the apparatus is operable to emit a signal intended to communicate the existence of the fault to t communications device.

Abstract: A method of monitoring an element in wireless communication system is provided. An operational noise measurement is obtained by measuring a noise value outside of a bandwidth of a first device, but within a bandwidth of a second, subsequent device. The operational noise measurement is alternatively obtained by tuning an input band of the element to shift the input band partially or completely outside of a bandwidth of a first device to create an open band or by suppressing an input of the antenna and measuring noise within the open bandwidth of the element of the wireless communication network. A stored parameter is retrieved and compared to the measured operational noise. Alternatively, a leakage signal of the element may be received at a signal receiver and compared to a reference. The reference is a function of components of the wireless communication system in a leakage path of the leakage signal.

Abstract: Techniques for transmitting and receiving data in a relay communication network are described. Stations in the relay network may be grouped into multiple depths. Packets may be transmitted in a pipelined manner, with stations at progressively higher depth sending transmissions of a packet in successive frames. In an aspect, a station may receive data with interference cancellation. The station may obtain a received signal containing transmissions of a first packet from stations at a first depth and transmissions of a second packet from stations at a second depth. The first and second stations may be downstream and upstream stations, respectively, or may be upstream stations at different depths. The station may estimate and cancel interference due to the transmissions of the first packet from the received signal to obtain an interference canceled signal. The station may then process the interference canceled signal for the second packet.

Abstract: A repeater system is disclosed including a first planar antenna array comprising a first plurality of patch antennas, wherein the first plurality of patch antennas include a first pair of first patch antennas and a second pair of patch antennas, the first patch antennas in each pair disposed symmetrically about a perpendicular plane bisecting a distance between the patch antennas in each pair. Two microstrip antenna probes may be connected to respective ones of the first patch antennas in each pair. The two feed signals connected to the two probes may be phased shifted approximately 180 degrees out of phase with respect to each other. The repeater also includes a second planar antenna array comprising a second plurality of patch antennas and a housing connecting the first planar antenna array and the second planar antenna array. In some embodiments, each of the first planar antenna array and the second planar antenna array include some even number of E-shaped patch antennas.

Abstract: Provided is a method and apparatus for calculating an isolation distance that is a distance where an interference phenomenon does not occur between wireless repeater apparatuses. The isolation distance calculating apparatus may include: an interference signal calculator to calculate a magnitude of an interference signal included in a particular band by detecting a signal of the particular band extracted from a received radio signal of a wireless repeater apparatus; and an isolation distance calculator to calculate a necessary isolation distance for cancelling interference between the wireless repeater apparatus and another wireless repeater apparatus, based on a predetermined allowable interference signal level and the magnitude of the interference signal.

Abstract: This invention provides a communication system, a communication apparatus, a control method of the communication apparatus, and a computer-readable storage medium, which enable to increase the reliability of relay transmission and suppress redundant transmission.

Abstract: The instant application describes a method that includes steps of receiving, at a mobile device, an identification signal from a repeater informing the mobile device of a presence of the repeater within a proximity of the mobile device and sending, from the mobile device, an inquiry request to the repeater requesting information associated with capabilities of the repeater identified in the identification signal. The method also includes steps of receiving, at the mobile device, the requested information from the repeater; determining, based on the received information, whether to use the repeater for communication between the mobile device and a mobile communication network; and controlling the repeater based on the determination result.

Abstract: A power distribution network is provided comprising ground-based microwave transmitters, receivers and microwave redirectors. The ground-based microwave transmitters have their own directional, focus and amplitude controllers for aiming a focused microwave beam at a microwave redirector. The microwave redirectors each have a receiving antenna and a plurality of transmitting antennae such that the redirectors transmit focused microwave beams to at least two different stations (for example, being either ground-based microwave receivers or other microwave redirectors).

Abstract: In one exemplary embodiment, an apparatus (50) includes: means for determining (52) a source timing parameter for a source node (70) and a relay timing parameter for a relay node (60), wherein the relay node (60) is disposed between the source node (70) and the apparatus (50); first means for transmitting (56) the relay timing parameter to the relay node (60); and second means for transmitting (56) the source timing parameter and the relay timing parameter to the source node (70). In another exemplary embodiment, an apparatus (70) includes: first means for receiving (76) a first timing parameter; second means for receiving (76) a second timing parameter; first means for transmitting (76) a message to a first node (60) in accordance with the first timing parameter; and second means for transmitting (76) the message to a second node (50) in accordance with the first and second timing parameters.

Abstract: The vehicle, such as airplane, which comprises the internal wireless communicating device and the external antenna device, wherein the passenger(s) in the vehicle may access network (e.g., the Internet) via the internal wireless communicating device and the external antenna device.

Abstract: A system or method is disclosed which employs filters on a satellite whose bandwidth is varied by ground command to restrict interference experienced by a satellite as an auxiliary terrestrial component (ATC) system is increased to a multiplicity of cities and markets. Thus there is provided a novel method and system which optimizes overall MSS and ATC traffic.

Abstract: A repeater that facilitates communication in a wireless environment comprises a scheduling component that analyzes a schedule relating to when communications are active in the forward link direction and when communications are active in the reverse link direction, the communications are subject to time division duplexing. An amplifier that amplifies received communications as a function of the schedule. The repeater can further comprise a configuration component that configures the amplifier to amplify the received communications in one or more of a forward link direction and a reverse link direction.

Abstract: A terrestrial communications system which comprises one or more terrestrial transmitting nodes for transmitting a first set of signals, one or more terrestrial receiving nodes for receiving a second set of signals, and a plurality of user units, each of the user units including a transceiver for transmitting the second set of signals to the terrestrial receiving nodes and for concurrently receiving the first set of signals from the respective terrestrial transmitting node, wherein the first set of signals are in a first frequency band between 11.0 GHz-13.0 GHz and wherein said second set of signals are in a second frequency band between 0.7 GHz-3.0 GHz.

Abstract: The present application relates to a wireless communication system and related methods and apparatuses for transmitting a signal from a source apparatus to a destination apparatus, via at least one intermediate apparatus. In particular, the present invention relates to techniques which seek to improve the throughput of data in multi-hop communication systems.

Abstract: Various apparatuses, methods and computer programs are provided. A first apparatus includes: a controller configured to control transmitter circuitry to transmit, according to a first communication protocol, a first request to a second apparatus, the first request being for assisting a wireless communication link, according to a second communication protocol, to be established between the apparatus and a third apparatus. In response to receiving the first request, the second apparatus transmits a second request to the third apparatus. The third apparatus is configured to transmit signals at a rate, each signal being for enabling a wireless communication link to be established between the third apparatus and another apparatus (such as the first apparatus). In response to receipt of the second request, the third apparatus changes the rate at which the signals are transmitted.

Abstract: An integrated wireless network and associated method are provided for facilitating wireless communication onboard an aircraft. The integrated wireless network includes a wireless distribution system including a wired interface and a plurality of wireless radios. The wireless distribution system may also include a combiner and one or more antennas, such as leaky feeder antenna(s), extending through the cabin compartment of the aircraft. The combiner may provide the combined wireless signals to the antenna for transmission. And, the combiner may deconstruct wireless signals received by the antenna and provide the deconstructed wireless signals to a respective wireless radio. The integrated wireless network of this embodiment also includes one or more wireless data concentrators having a plurality of wireless radios in communication with the antenna.

Abstract: Disclosed are a scheduling method and apparatus for a relay-based network. The scheduling apparatus may assign a plurality of sub channels to links, with respect to each of a first sub frame and a second sub frame included in s downlink sub frame. The scheduling apparatus may perform scheduling in cases where nodes operated as transmitters and as receivers in the first sub frame and the second sub frame may diversely exist.

Abstract: A satellite signal demodulator is configured to use frequency-based channel scanning to sense the presence of a channel and to obtain the frequency profile of the channel. Once the channel is identified and the profile is obtained, channel extraction is used to identify the frequency parameters for a given channel. A coarse parameter estimation is performed to obtain a coarse estimate of the symbol rate (SR) and the center frequency (fc) of the channel. The coarse estimation can then be followed by a fine estimation of the symbol rate and center frequency (fc), using a bit tracking loop (BTL) lock indicator.