Abstract: An apparatus and method for controlling a mode transition of a mobile station (MS) in a relay station (RS) in a wireless communication system are provided, in which upon receipt of a mode transition request signal from at least one MS within a service area of the RS, the RS determines whether to approve the mode transition request, sets management information for the mode transition of the MS, if the mode transition request of the MS is approved, and transmits the management information to the MS.

Abstract: A system and method for communicating through a host repeater. Data is received from a remote repeater communicating with a wireless device. The host repeater registers as the wireless device on a wireless network. The data is reformatted for transmission between the wireless devices and the wireless network.

Abstract: An apparatus and method for interference cancellation and synchronization maintenance over interference channel estimation in a communication system are provided. An interference channel estimator fixes synchronization and estimates an interference signal. An interference signal controller eliminates the estimated interference signal from a received RF signal. A synchronization unit unfixes fixed synchronization and tracks synchronization when the interference signal cancellation is stable. A data buffer stores data from which the interference signal is canceled.

Abstract: A radio communication system includes a relay station, a first radio base station, second radio base stations, and a mobile station. The relay station is connected by radio to the first radio base station and communicates with the second radio base stations via the first radio base station. When the relay station communicates with the second radio base stations, the relay station requests the first radio base station to communicate with the second radio base stations for the relay station. The requested first radio base station communicates with the second radio base stations for the relay station and transmits a communication result to the relay station.

Abstract: A base station includes a selector that based on wireless communication states with each mobile station, selects a mobile station for which amplification is to be performed at a relay station; and a reporter that reports information related to the mobile station selected by the selector.

Abstract: A communications terminal registered as a controlled terminal in a controlling terminal which controls the controlled terminal via a communications network, the communications terminal includes a receiving unit (15020) which receives a sleep message including information indicating whether or not the controlling terminal is sleeping and information indicating a timing when the controlling terminal leaves sleep mode and wakes up; a detecting unit (15030) which detects a transmission of a registration request for requesting that a new terminal be registered in the controlling terminal as a new controlled terminal, the new terminal being another communications terminal not yet registered in the controlling terminal; and a notifying unit (15040) which determines whether or not the controlling terminal is sleeping based on the sleep message, and notifies the new terminal is of the timing by sending the sleep message when the controlling terminal is sleeping and when the transmission of the registration request is

Abstract: A relay node (or relay station) operates as an intermediary entity in a transmission between a base station and a mobile station based on its position in a cell and the mobile station's position in the cell. Since the cell is divided into multiple regions and different wireless resources are used in the multiple regions, the relay node employs the relevant wireless resources to be used in the communications based on positions of the relay node and the mobile station. When the relay station and the mobile station are both in the boundary region, it is possible to avoid interference in the relay station by adapting a relay mode that uses a boundary frequency avoiding interference with adjacent cells for both an uplink and a downlink and demultiplexes a relay link and an access link in a time direction for each of the uplink and the downlink Similar adaptations are made when the mobile station and the relay station are in various positions within a center cell region and boundary cell region.

Abstract: It is described a method for partitioning radio transmission resources within a telecommunication network. The method includes (a) preparing a handover of a user equipment from a source access point being assigned to a source side of the telecommunication network to a target access point being assigned to a target side of the telecommunication network, (b) transferring a pre-announcement message from the source side to the target side indicating the handover, wherein the pre-announcement message is indicative for the amount of data traffic being associated with the user equipment, and (c) partitioning the radio transmission resources on the target side based on the pre-announcement message. It is further described a source side network element and a target side network element for controlling a partitioning of radio transmission resources within a telecommunication network. Furthermore, a computer program for controlling the above described method is described.

Abstract: A method and system to facilitate mobile relay and group mobility in a wireless network. In one embodiment of the invention, the wireless network facilitates a mobile relay station that has logic to switch communication with a first base station to a second base station while maintaining logical communication with its associated mobile station(s). By doing so, the handover of the mobile relay station from a source base station to a target base station is transparent to the mobile station(s) that are connected with the mobile relay station in one embodiment of the invention.

Abstract: It is difficult that a providing apparatus which provides communication parameters is decided by a receiving apparatus which receives the communication parameters from the providing apparatus. Based on a discrimination condition, a first communicating apparatus selects whether the communicating apparatus operates as a relay apparatus in a communication parameter setting protocol between the providing apparatus and the receiving apparatus or operates as a proxy apparatus which executes the communication parameter setting protocol as a proxy of the providing apparatus between the providing apparatus and the receiving apparatus.

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: A wireless repeater includes an internal feedback path for adaptively cancelling an echo between an output antenna and an input antenna. The internal feedback path employs an adaptive algorithm implementing a list having a plurality of list elements. Each list element has one or more echo cancellation parameters and one or more repeater settings. The list may be pruned by employing a minimum distance between elements within the list. A method for stabilizing a wireless repeater includes obtaining an autocorrelation of a signal in a signal path of the repeater, detecting an echo in the signal path based on the autocorrelation, providing a list of elements indicating past successful echo cancellation coefficients and associated repeater settings, and adaptively adjusting an error of the echo cancellation coefficients to cancel the echo in the signal path.

Abstract: The present invention provides an enhanced H-ARQ scheme that optimizes bandwidth utilization and spectrum efficiency. When an H-ARQ attempt is unsuccessful due to loss or error over a hop between the BS and MS/SS, then only the first node in the hop chain that fails to decode the packet transmits another H-ARQ attempt. The BS determines the first node that fails on decoding based on certain information such as the feedback information sent from the nodes on the path. The previous node of the failed node is then instructed to retransmit by the BS.

Abstract: A medium-access-control (MAC) scheduler, according to one embodiment of which a station of a wireless network evaluates data throughputs corresponding to three different transmission configurations for transmission of a packet over a first of that station's wireless links. The first and second of those transmission configurations have the packet encoded in the first and second tiers, respectively, of a two-tier signal. The third transmission configuration has the packet encoded as a conventional single-tier signal. For each of the first and second transmission configurations, the station selects a second of that station's wireless links for transmission of at least a second packet, with the first and second packets encoded in different respective tiers of the two-tier signal.

Abstract: The present invention provides methods and systems for decoding a data burst in a communication system. A data burst, including a plurality of forward error correction (FEC) blocks, is received. At least one FEC block of the data burst is decoded. Thereafter, it is detected if one or more errors are present in the at least one FEC block of the data burst. Upon detecting one or more errors in the at least one FEC block, the method halts the decoding of the data burst. In response to detecting the one or more errors, a retransmitted data burst corresponding to the data burst is received. One or more FEC blocks of the data burst may be combined with corresponding one or more FEC blocks of the retransmitted data burst. The one or more FEC blocks of the data burst includes the at least one FEC block that had the one or more errors detected as present.

Abstract: A data transmission method in a wireless relay system, and a method of selecting an optimal transmission mode based on a channel capacity of an individual link that is measured by a mobile station. The data transmission method includes: transmitting a first ratio of first partial data of the data from a base station to a mobile station; transmitting a second ratio of second partial data of the data from the base station to a first relay station; and forwarding the second partial data from the first relay station to the mobile station, wherein the first ratio or the second ratio is determined based on any one of a channel capacity of a first link between the base station and the mobile station, and a channel capacity of a second link between the first relay station and the mobile station.

Abstract: An emergency communications device contains dispatch consoles for use by user that contains multiple repeaters and multiple communication networks. The multiple repeaters and multiple communication networks are used for redundancy purposes, in case the repeater or communication network in use becomes disabled for any reason. The device also contains a recorder unit capable of provided instant playback to emergency dispatch personnel independently of whether the unit is recording. The device does not require an external computer to operate.

Abstract: A system includes a transmitting device, an intermediate communications device, and a receiving device. The system establishes a first synchronous wireless link between a transmitting device and the intermediate device, and a second synchronous wireless link between the intermediate device and the receiving device. The transmitting device may include a wireless audio transmitter, a sampling unit configured to convert an incoming audio signal to a stream of digitized audio samples, an encoder unit configured to code the stream of digitized audio samples according to an audio codec based on a sample oriented audio compression algorithm to provide a stream of coded digitized audio samples, and a signal transmitting unit transmitting the stream of coded digitized audio samples over the first synchronous wireless link to the intermediate device. The intermediate device transmits the stream of coded digitized audio samples to the receiving device through the second synchronous wireless link.

Abstract: The technology described in this application provides a way for an O&M node or system to configure, monitor, and manage relay nodes efficiently. A base station serves a relay node in a cellular communications system that also includes the O&M node. A relay node O&M data context for the relay node is established in a memory associated with the base station. O&M data pertaining to the relay node is stored in the relay node O&M data context. The information in the relay node O&M data context is different than O&M data pertaining to the base station. The base station performs, on behalf of the relay node, O&M-related communications using the O&M data in the relay node O&M data context.

Abstract: The present invention provides a radio node apparatus, a multi-hop radio system and a multi-hop radio system constructing method, capable of constructing a tree type multi-hop radio system in which mutual radio nodes determine a radio node which becomes a root node of a tree in an autonomous manner and the root node is set as a root in an autonomous manner.

Abstract: A digital satellite radio system includes a content server for providing a digital satellite radio channels, and a satellite for broadcasting the digital satellite radio channels. For overcoming indoor reception problems, a modem is connected to the content server via the Internet for receiving a selected digital satellite radio channel while not receiving unselected digital satellite radio channels. A digital satellite radio unit receives the selected digital satellite radio channel from the modem while not receiving the unselected digital satellite radio channels. In lieu of the modem connected to the Internet, a repeater receiving signals from the satellite is used for providing the selected digital satellite radio channel to the digital satellite radio unit.

Abstract: A source sends an encoded data block during a first time interval to a destination and to a relay. The source sends additional parity bits for the encoded data block during a second time interval. The relay partially decodes that encoded data block to a process-defined end point (typically only a partial decoding), such as a fixed number of decoding iterations. After partial decoding the relay forms a modified data block having corrected information bits and the parity bits of the block it received, and sends the modified data block to the destination, during the second time interval. The destination decodes to a results-defined end point the modified data block it received from the relay using the additional parity bits it received from the source. If that end-point cannot be reached, the destination may begin anew decoding the original encoded data block it received from the source.

Abstract: A service relay device is provided. The service relay device includes a receiving unit which receives a service signal, and a service processing unit which changes information regarding an order of changing frequency channels included in the received service signal, using replacement frequency channels, and broadcasts the service signal. The service processing unit includes a detecting unit which detects the information regarding the order of changing frequency channels, a storage unit which stores information regarding replacement frequency channels, an information processing unit which replaces the information regarding the order of changing frequency channels, using the replacement frequency channels stored in the storage unit, and a relay unit which broadcasts a service signal. As a result, service signals are provided stably even in the fringe area.

Abstract: Disclosed is a signal combining apparatus and a resource allocation method using the same in a cellular system using distributed antennas. The resource allocation method includes detecting a channel transmission capacity when a signal is transmitted from a single Relay Station (RS) to a Mobile Station (MS), by a Base Station (BS), detecting a channel transmission capacity when transmitting a signal produced by using signal combining by two or more RSs to the MS, by the BS, selecting a channel transmission capacity with a larger gain between the detected channel transmission capacity of the single RS and the detected channel transmission capacity of the two or more RSs, by the BS; and selecting the signal transmitted by the single RS or the signal produced by using the signal combining by the two or more RSs having the selected channel transmission capacity with the larger gain, and then transmitting the selected signal to the MS.

Abstract: Methods and apparatus for wireless communications in networks, e.g., regional ad hoc peer to peer networks, are described. A communications node, e.g., a third node monitors for wireless communications between other peer communication nodes, e.g., a first node and a second node, in its local vicinity. The third node determines from the monitored wireless communication an indication of link quality corresponding to a communication link between the communication nodes which are communicating or seeking to establish a communications link. The third node generates an estimate of a link quality for a communications link between itself and the first node. Based on the indication of link quality and generated estimate of link quality, the third node decides whether or not to send a signal indicating availability to relay communication between the first and second nodes. The third node, when acting as an intermediary node after indicating its availability to so act, may receive traffic data e.g.

Abstract: A system and method of applying a known modification to a signal to enable a determination of a signal received by a first node is received directly from a second node or indirectly through a repeater. The repeater receives a primary signal and creates a secondary signal as a function of the primary signal and a known modification, wherein the known modification identifies the repeater. The primary signal is transmitted and injected with the secondary signal as the first signal to the primary receiver.

Abstract: An apparatus and a method for processing transmission information of a broadcast message constituted by a Relay Station (RS) in a multihop relay Broadband Wireless Access (BWA) communication system are provided. A communication method of the RS includes composing a message to be sent to a Mobile Station (MS); transmitting a scheduling request message which includes information required to schedule the composed message, to a Base Station (BS); and receiving an allocation message which includes information to transmit the composed message, from the BS in response to the scheduling request message.

Abstract: An embodiment of the present invention provides an apparatus, comprising a subscriber station (SS) operable to communicate with a base station (BS) and at least one additional subscriber station (SS) in a wireless metropolitan area network, wherein the at least one additional SS attempts to overhear a first message from the SS and piggy back a second message for the overheard message from the SS's uplink data to the BS with its uplink data.

Abstract: A repeater including a first wireless unit that performs transmission and reception using a frequency for communicating with a base station and a second wireless unit that performs transmission and reception using a frequency for communicating with a mobile station performs a follow-up communication after broadcast communication. The repeater causes, while the second wireless unit transmits a broadcast communication signal (TCH (voice data)) to the mobile station, a transmitter (TX) provided on the first wireless unit to regularly transmit a switching signal (UI signal (for designating a direct communication wireless channel, and for setting a direct communication simplex call) for switching the mobile station to a broadcast communication channel.

Abstract: A method (200) of dynamically deploying wireless repeaters in a communication network can include establishing (205) a first wireless repeater serving as a communication node, evaluating (210) quality of a signal dynamically among at least one additional repeater being deployed in the communication network and the communication node, and selectively entering (215) a vertical unit in one of the additional repeaters being deployed. Evaluating the quality can include measuring (211) a signal strength from other repeaters in the communication system or measuring (212) a signal strength from a nearest repeater among the other repeaters in the system. Evaluating can also include pinging (213) the communication node. The vertical units can be entered as an input using any number of input devices including, but not limited to a keypad, a rotary switch (22 and 24), a voice recognition system or any combination thereof.

Abstract: A relay method and device, wherein the control signal and the data signal which are in the same subframe are directly sent to a lower level device respectively by an upper level device and a relay function device. In one example, the relay function device transmits data signal using subscriber special reference signal to make the lower level device estimate an access channel correctly; in another example, the relay function device carries out precoding of the data signal correlative with the access channel so as to cancel the influence of the access channel, thereby make the lower level device receive data signal correctly. Retransmission control signaling is sent to the lower level device in each subframe by the upper level device to ensure the fixed sequential relationship of feedback retransmission.

Abstract: A communication system is configured that includes a mobile terminal, one or more relay devices, and a base station for communicating with the mobile terminal via any of the one or more relay devices, where the mobile terminal includes a reception unit for receiving a reference signal transmitted from the one or more relay devices, a determination unit for determining a relay device to be used for communication with the base station based on the reference signal received by the reception unit from the one or more relay devices, and a transmission unit for transmitting to the base station information indicating the relay device determined by the determination unit.

Abstract: An apparatus and method for supporting relaying in a wireless communication system are provided. The apparatus and method include a transmitting apparatus which acquires channel information between the transmitting apparatus and an RS, pre-encodes a transmission signal to be transmitted to the RS with the channel information, transmits the pre-coded signal to the RS, and acquires, upon receipt of a signal from the RS, a signal transmitted by a receiving apparatus by eliminating the transmission signal transmitted to the RS from the received signal. Accordingly, the apparatus and method improve system capacity gain without adding time resources.

Abstract: A gain adjustment apparatus, a gain adjustment method, and a tangible machine-readable medium thereof for a multiple input multiple output (MIMO) wireless communication system are provided. The MIMO wireless communication system comprises source antennas, destination antennas, relay stations (RSs) and a relay transmission power limit value. The gain adjustment method comprises the following steps: adjusting the gain of one single RS according to a gain calculation; multiplying the gains of other relay stations by a scaling value for adjustment. According to aforesaid method, the present invention can increase the system capacity of the MIMO wireless communication system.

Abstract: A system for implementing a multi-radio wireless network includes a plurality of endpoints wirelessly coupled to a relay station. The system also includes a base station wirelessly coupled to the relay station. The relay station includes a first radio operable to use a first channel to communicate with the base station. The relay station also includes a second radio operable to use a second channel to communicate with the plurality of endpoints. The relay station further includes a processor coupled to the first radio and the second radio. The processor is operable to relay data between the base station and the plurality of endpoints.

Abstract: A relay station (606, 806a, 806b, 906a, 906b, 1006 and 1106) and a method (700) are described herein that enables reliable digital communications to occur between two nodes in a wireless relay based network (600, 800, 900, 1000 and 1100). The wireless relay based network includes a first node (602, 802, 902, 1002 and 1102) that transmits information in coded/modulated digital communications to a second node (604, 804, 904, 1004 and 1104) via one or more relay stations. And, each relay station is capable of: (1) receiving (702) a coded/modulated digital communication from the first node; (2) computing (704) a plurality of reliability values for a plurality of information symbols or coded symbols in the received coded/modulated digital communication; and (3) transmitting (706) a coded/modulated digital communication that has the computed reliability values embedded therein to the second node.

Abstract: To provide a technology capable of reducing a processing load on a base station controller and restraining a traffic quantity within a mobile communication system. A base station apparatus connected to a base station controller has a first establishing unit establishing a first logic communication path between the base station apparatus and the base station controller; a second establishing unit establishing a second logic communication path between the base station apparatus and another base station apparatus; and a forwarding unit forwarding data, transmitted and received with the another base station apparatus and the base station controller serving as terminal points, as data of another base station apparatus via the first logic communication path and the second logic communication path.

Abstract: A relay station that includes a receiver that receives, from a transmitter station, a signal in which known data used for propagation path estimation is assigned to a first region determined by a combination of a frequency domain and a time domain and predetermined data is assigned to a second region that is different from the first region. The relay station also includes a processor that performs processing for generating a signal in which the known data is assigned to the second region in the signal received by the receiver, and a transmitter that transmits the signal generated by the processor.

Abstract: A wireless communication system includes a transmitter station and a receiver station capable of performing wireless communication via a relay station. The relay station includes a receiver that receives the signals transmitted by the transmitter station. The relay station also includes a signal processor that performs predetermined signal processing on the signals received by the receiver, and eliminates the later one of two same signals received by the receiver. The relay station further includes a transmitter that transmits the earlier one of the two same signals to the receiver station after the signal processing performed by the signal processor.

Abstract: A microprocessor and a DSP are coupled with a cable modem and an IAD framer to terminate a DS1 link at a media terminal device. The processor performs call control operations and the DSP performs signal processing, such that call processing occurs at the device. The framer extracts or inserts call control information from robbed-bit signaling bits. Data streams from the DS1 link are formatted/packetized according to a protocol used by a VoIP network. VoIP is used to transmit the packetized call from the cable modem portion to a CMTS over a broadband network. QoS attributes are implemented on the derived data streams as would be done for calls generated by a standard PacketCable EMTA.

Abstract: A device and a process which enable use of transmission diversity in transmission to a receiving station when wirelessly relaying wireless signals from a transmitting station to the receiving station. A reception antenna RA in a wireless relay device (RS) receives from the transmitting station such as a base station (BS) a signal in which data signals are respectively allocated to carriers at adjacent radio frequencies. The wireless relay device performs space frequency block coding (SFBC) of the received signal. Then, the wireless relay device transmits SFBC-encoded signals through two transmission antennas SA0 and SA1 to the receiving station such as a mobile station (MS).

Abstract: Disclosed is a method for relaying data in a multi-hop cellular system, the method including receiving by a terminal from a base station a notification as to whether the terminal is decided as a candidate for a relay, deciding by the terminal whether to be a representative candidate terminal for the relay according to a channel state with the other terminals within a coverage of the base station if the terminal is decided as the candidate for the relay, sending by the terminal to the base station a notification if the terminal is decided as the representative candidate terminal, and relaying data received from the other terminals to calculate relay probability terminals to the base station if the terminal is notified from the base station as to that the terminal is finally decided as the relay.

Abstract: An outdoor lighting fixture includes at least a first ballast for controllably providing power to at least one lamp for illuminating an outdoor area. The outdoor lighting fixture further includes a housing and a radio frequency transceiver. The outdoor lighting fixture yet further includes an antenna coupled to the radio frequency transceiver and extending away from the housing. The outdoor lighting fixture also includes a control circuit that operates the radio frequency transceiver as a wireless router for wireless network communications.

Abstract: A base station, by relay of a relay station provided in a cell of the base station, wirelessly communicates with a mobile station located in the cell and includes a receiver that receives from an adjacent-cell relay station provided in an adjacent cell, adjacent cell resource information related to wireless resources allocated to the adjacent-cell relay station; and a processor that preferentially allocates to a wireless path between the relay station and the mobile station, wireless resources that are different from the wireless resources indicated in the received adjacent cell resource information.

Abstract: A power distribution apparatus (PDA), a power distribution method, and a non-instant computer readable medium thereof are provided. The PDA is used in a relay transmission system (RTS) comprising a mobile station (MS), a relay station (RS) and a base station (BS). The MS communicates with the BS through the RS. The PDA may communicate with the MS, BS and RS. The PDA computes optimum transmission parameters of the MS and BS and an optimum relay forward parameter of the RS according to a power threshold, transmission information of the RTS, an optimum condition and an algorithm. Accordingly, the MS, RS and BS may determine the optimum transmission power of the MS, RS and BS according to the optimum transmission parameters and the optimum relay forward parameter respectively.

Abstract: A data relay apparatus includes a first demodulating unit, demodulating a modulation signal of a first modulation mode from a first transmission source; a second demodulating unit, demodulating a modulation signal from a second transmission source, having a modulation mode higher than the first modulation mode; a combination controlling unit, providing a mapping rule necessary for performing signal combination in accordance with the modulation mode of the modulation signal from each of the first and second transmission source, the mapping rule to map the demodulated modulation signal from the first transmission source together with the demodulated modulation signal from the second transmission source to a constellation of symbols of the second modulation mode; a data combining unit, performing data combination on the demodulated modulation signal from the first transmission source and the demodulated modulation signal from the second transmission source according to the mapping rule.

Abstract: An analog space-time relay method and apparatus for a wireless communication relay channel is disclosed herein. In a specific embodiment, the analog space-time relay channel (100) includes first and second relay antennas (122,124) arranged to relay an information signal transmitted from a source station (110) to a destination station (130).

Abstract: Provided is a relay station capable of reducing control information required for allocating a relay transmission channel in a mobile communication system.

Abstract: A relay device deployment system comprising: a deployer, a wireless relay device, a node radio, a deployment mechanism, and a processor. The deployer is configured to be mounted on a mobile platform and to deploy the relay device to a support surface. The relay device comprises dual rotatable antennas and operates as a node in an ad hoc telecommunications network. The node radio has dual antennas and is also configured to operate as a node in the network. The deployment mechanism is configured to deploy the relay device when the network strength drops below a threshold value as monitored by the processor.

Abstract: A radio communication system including a first communication device configured to transmit a signal, a relay device which includes a receiver configured to receive the transmitted signal, an amplifier configured to amplify the received signal according to a gain determined by a processor included in a control device, and a transmitter configured to transmit the amplified signal to a second communication device, the second communication device being configured to receive the amplified signal, and the transmitted signal, which is transmitted directly from the first communication device, and the control device being configured to improve a reception quality of the amplified signal and the directly transmitted signal.

Abstract: Textile yarn package supporting carriers are disclosed for use in textile dyeing machines to enable the machine to be effectively operated at less than full capacity. Each carrier has a base with multiple upstanding package supporting posts equipped with interchangeable adapters to accommodate differing numbers of yarn packages up to the maximum capacity of the carrier. An upstanding wall on the base defines an enclosure for retaining treating liquid, and the wall has a selectively movable and removable panel for forming a liquid weir at a selectively variable level relative to the base to determine a maximum level of liquid which may be retained in the carrier enclosure.