Class / Patent application number | Description | Number of patent applications / Date published |
370279000 | Duplex repeaters | 70 |
20080225758 | Automatic Gain Control and Filtering Techniques for Use in On-Channel Repeater - A repeater environment is provided operative to deploy a feedback cancellation loop that is adaptively coupled with an antenna array such that a selected metric can be derived by deploying a selected filter bank having an automatic gain control operative to process the signal on a bin by bin basis and the derived metric can be applied to the antenna array and feedback cancellation loop combination to improve signal integrity and amplification. In an illustrative implementation, an exemplary repeater environment comprises, a transmitter, a receiver, an equalized feedback cancellation loop circuitry comprising a filter bank, the cancellation loop being operatively coupled to an antenna array. In the illustrative implementation, the feedback cancellation loop can receive signals as input from a cooperating antenna array and provide output signals such as a feedback leakage signal to a cooperating antenna array. | 09-18-2008 |
20080253307 | Multi-Station Media Controller - A system including a plurality of software-controlled broadcast stations each having at least one media asset, and a controller to allow a user to link a first media asset of a first one of the stations to a second media asset of a second one of the stations. When the user schedules the first station to broadcast the first media asset at a specified time, the controller automatically causes the second station to broadcast the second media asset at the specified time. | 10-16-2008 |
20090116415 | Relay, and relaying method - According to one aspect of the present invention, a relay station including a first antenna, a second antenna, a transmitter circuit that converts a baseband signal into an RF signal to be transmitted, a receiver circuit that extracts the baseband signal from the received RF signal, a switching unit that switches between a first state in which the first antenna is connected to the receiver circuit, and the second antenna is connected to the receiver circuit, and a second state in which the first antenna is connected to the receiver circuit, and the second antenna is connected to the transmitter circuit, and a communication controlling unit that extracts the baseband signal created from the RF signal received from either one of the first or second communication devices and then, after a predetermined process is applied to the communication data contained in the baseband signal, the communication controlling unit transmits the communication data through the transmitter circuit to another communication device is provided. | 05-07-2009 |
20090135745 | DIRECTIONAL ANTENNA CONFIGURATION FOR TDD REPEATER - A wireless communication node, such as a repeater, including a frequency translating repeater, a physical layer (PHY) repeater, time divisional duplex repeater (TDD) and the like, is configured with a pair of directional patch antennae and an omni-directional antenna. The patch antennae can be selected depending on the orientation of the repeater package to communicate with a station such as an access point or a base station. The omni-directional antenna can be directed toward another station such as a client. The patch antennae and the omni-directional antenna can be orthogonally polarized to increase isolation and reduce electromagnetic coupling. Multiple antennae can be used in multiple-input-multiple-output (MIMO) configurations. | 05-28-2009 |
20090190508 | COGNITIVE IP RADIO WITH REPEATERS - An operational mechanism enables extending the range of cognitive networks through the use of repeater transceivers and selective routing. | 07-30-2009 |
20090279456 | CASCADE-TYPE MULTIPLEX RADIO COMMUNICATION RELAY SYSTEM - A cascade-type multiplex radio communication relay system, in which a donor and a Main Hub Unit (MHU) are connected to each other through an Unshielded Twisted Pair (UTP) cable to enable duplex communication, and in which a plurality of remote units are connected to the MHU through UTP cables to enable duplex communication. The cascade-type multiplex radio communication relay system adopts a method of converting at least two different RF communication signals into a single UTP transmission frame, and relaying the UTP transmission frame through a UTP cable in a digital communication manner. | 11-12-2009 |
20090285133 | Method for over-the-air base station management via access terminal relay - An enhanced access terminal (AT) that can serve as a “proxy wireless over-the-air backhaul or relay” is provided, to connect a base station with no backhaul to its neighboring fully functional base station that is connected to the NMS. In a further embodiment, a method is provided for management of the base station with no backhaul via communications links established using the enhanced access terminal. | 11-19-2009 |
20100080151 | MULTIPLE-ANTENNA DEVICE HAVING AN ISOLATION ELEMENT - A multiple-antenna device is provided, comprising: a printed circuit board having a ground plane configured to provide electromagnetic isolation between a first side of the printed circuit board and a second side of the printed circuit board; a first non-conductive support member formed over the first side of the printed circuit board; a second non-conductive support member formed over the second side of the printed circuit board; a first antenna formed over the first non-conductive support member; and a second antenna formed over the second non-conductive support member, wherein the first antenna is electrically connected to a first feed point on a first portion of the printed circuit board that is not connected to the ground plane, and wherein the second antenna is electrically connected to a second feed point on a second portion of the printed circuit board that is not connected to the ground plane. | 04-01-2010 |
20100110942 | Layer 2 Relay Multiplexing and Interference Mitigation - A network arrangement comprising a relay node (RN), wherein the RN is configured to assign a plurality of resource blocks (RBs) allocated by an enhanced node B (ENB) for at least one user equipment (UE). A network comprising an ENB, wherein the ENB is configured to allocate a plurality of RBs for an RN, wherein the RBs are assigned for at least one UE. Also disclosed is a method for communicating in a network, comprising selecting a time-division (TD) communication mode, and using resource scheduling based on the selected TD communication mode. | 05-06-2010 |
20100142415 | APPARATUS AND METHOD FOR SCHEDULING IN A RELAY SYSTEM - An apparatus and a method for scheduling and a power control of a relay system that is capable of stable operation an environment where sufficient isolation between antennas is not ensured. The apparatus includes a scheduler for allocating resources to a zone not experiencing inter-antenna interference in an initial resource allocation, classifying users based on vulnerability to the interference, and allocating resources to a zone experiencing the interference, and a power controller for setting the resources of the zone experiencing the interference to a lower power than the resources of the zone not experiencing the interference to minimize the inter-antenna interference. | 06-10-2010 |
20100150034 | SYSTEM AND METHOD FOR SPATIAL DIVISION MULTIPLE ACCESS USING WIRELESS REPEATER HAVING SINGLE TRANSMITTING/RECEIVING ANTENNA - A system for spatial division multiple access using a wireless repeater having a single transmitting/receiving antenna, includes: a base station that selectively transmits a plurality of data stream signals to the wireless repeater within an area through a multi-transmitting antenna for downlink; and at least one wireless repeater that forms a wireless repeater group within the base station area and repeats the data stream signals selectively transmitted from the base station to terminals. | 06-17-2010 |
20100177668 | UNITED AFEC AND METHOD THEREOF, AND TDD RADIO REPEATER APPARATUS USING THE SAME - Provided is a united Adaptive Forward Error Correction (U-AFEC), including: an automatic gain control unit for controlling a gain of forward/backward relay signals; a switching unit for switching the forward/backward relay signals; a forward feedback signal detecting unit for detecting and updating a phase and a size of a feedback signal; a backward feedback signal detecting unit for detecting and updating the phase and the size of the feedback signal; a reverse feedback signal synthesizing unit for generating a reverse feedback signal based on the phase and the size of the feedback signal; a feedback signal removing unit for removing the feedback signal in the forward/backward relay signals and transmitting the forward/backward relay signals to the automatic gain control unit; and a control unit for removing the feedback signal in the forward/backward relay signals and controlling each constituent element. | 07-15-2010 |
20100195543 | APPARATUS AND METHOD FOR INTERFERENCE CANCELLATION IN MOBILE FULL DUPLEX RELAY - A method and an apparatus for canceling an interference in a mobile Full Duplex Relay (FDR) are provided. A signal is received from a base station, interference canceling that uses a transmitter interference signal from which an original signal interference has been cancelled is repeatedly performed on the signal received from the base station, and an interference-cancelled signal is transmitted. | 08-05-2010 |
20100208627 | WIRELESS INTERNET ACCESS REPEATER - Provided is a wireless Internet access repeater which can perform signal transmission and reception between a short-range wireless communication (Wi-Fi) baseband signal and a wide area wireless communication (WiMAX) baseband signal without a Ethernet physical layer protocol (PHY). The wireless Internet access repeater includes a wide area wireless communication module; a short-range wireless communication module; a first media access control (MAC) processing unit and a second MAC processing units, wherein the first MAC processing unit processes transmitted and received data according to a protocol of a MAC layer in a wide area wireless communication module and a second MAC processing unit processes transmitted and received data according to a protocol of a MAC layer in the short-range wireless communication module; a first media independent interface (MII) unit and a second MII unit, wherein the first MII unit interfaces data in the wide area wireless communication module interfaces data transmitted and received between the first and second MAC processing units and is the second MII unit in the short-range wireless communication module interfaces the data transmitted and received between the first and second MAC processing units; and a clock provider to provide a clock to the first and second MII units. | 08-19-2010 |
20100290369 | DUAL MODE RADIO FOR FREQUENCY DIVISION DUPLEXING AND TIME DIVISION DUPLEXING COMMUNICATION MODES - Dual mode radio for frequency division duplexing and time division duplexing communication modes. In some embodiments, dual mode radio for frequency division duplexing and time division duplexing communication modes includes a multi-mode communication unit for wireless communication, in which the multi-mode communication unit allocates access for a time based communication mode and a frequency based communication mode; and a processor configured to implement at least in part the multi-mode communication unit. In some embodiments, the time based communication mode includes a time division duplexing (TDD) communication mode, and the frequency based communication mode includes a frequency division duplexing (FDD) communication mode. | 11-18-2010 |
20110019595 | METHODS AND APPARATUS TO RETROFIT WIRED HEALTHCARE AND FITNESS SYSTEMS FOR WIRELESS OPERATION - Provided herein is an apparatus for converting a wired sensor system to a wireless sensor system. The apparatus can comprise a relay station comprising at least one antenna and at least one radio. The relay station can be adaptable to be integrated as at least one application specific integrated circuit and further adaptable to convert a wired sensor system into a wireless sensor system. Further provided are systems for converting wired sensor systems into wireless sensor systems and methods of use. | 01-27-2011 |
20110038284 | SYSTEM AND METHOD FOR WIRELESS RELAY FRAME STRUCTURE, PROTOCOL, AND OPERATION - A relay station is provided for use in a wireless communication system. The wireless communication system includes a plurality of base stations communicatively coupled to a backhaul network and at least one mobile station. The relay station is shared by at least a first base station and a second base station. The relay station includes a transceiver, a controller and relay circuitry. The transceiver transmits signals to and receives signals both base stations and a mobile station. Signals transmitted to the base stations include a single preamble, MAP and FCH. The controller is electrically connected to the transceiver and is operable to measure a signal quality of the mobile station while connected to the first base station. The relay circuitry is electrically connected to the controller and is operable to conduct a phased handoff from the first base station to the second base station based on the signal quality. | 02-17-2011 |
20110051629 | METHOD FOR TRANSMITTING FRAME IN WIRELESS COMMUNICATION SYSTEM INCLUDING RELAY STATION - A method of transmitting a frame of a relay station (RS) in a wireless communication system employing the RS is provided. The method includes: receiving frame configuration information on an RS frame from a base station (BS); configuring a frame including a downlink (DL) access zone for transmitting a signal to a relay user equipment (UE), a DL receive zone for receiving a signal from the BS, an uplink (UL) access zone for receiving a signal from the relay UE connected to the RS, a UL transmit zone for transmitting a signal to the BS, and a transition gap; and transmitting a signal in at least one of the UL access zone and the UL transmit zone, wherein the transition gap is a switching time between a transmission operation and a reception operation of the RS and is included in at least one of the DL access zone and the UL transmit zone. | 03-03-2011 |
20110051630 | REPEATER FOR A TRUNKED RADIO NETWORK - A repeater which enables portable radio terminals to operate outside the normal coverage area of a trunked radio network. The repeater combines two wireless transceivers which may simply be radio terminals coupled together in a vehicle, for example. One transceiver communicates control messages to and from the trunked network using a full or half duplex channel. The other transceiver communicates with the portable terminals using a half duplex or simplex channel. The link from the repeater to the network includes a generally continuous control channel while the link to the portable terminals is generally non continuous with intervals for messages from the terminals back to the repeater. | 03-03-2011 |
20110064006 | FILTER OR AMPLIFIER ADAPTATION BY AN INTERMEDIATE DEVICE IN A MULTI-HOP SYSTEM - A method is performed by an intermediate device in a wireless network. The method includes estimating a first hop channel state based on a transmission originating from a first device. The method further includes estimating an end-to-end signal-to-noise ratio base on a transmission associated with a second device. The method also includes adapting a filter or an amplifier of the intermediate device based on the first hop channel state and the end-to-end signal-to-noise ratio. | 03-17-2011 |
20110085477 | REPEATER SYSTEM - A repeater system for wireless communication system is disclosed forthwith. The repeater system uses an analog frequency converter and digital down and up converter in order to allow the processing of the repeated signal in a relatively low frequency (in the 30 MHz range) and in a digital form (rather than in analog form). The repeater system also provides a programmable multi-band filter which can identify and suppress out of band noises to increase the signal-to-noise ratio of the system. | 04-14-2011 |
20110103269 | WIRELESS COMMUNICATION SYSTEM AND RELAY STATION AND WIRELESS COMMUNICATION DEVICE THEREOF - A wireless communication system and a relay station and a wireless communication device thereof are provided. The wireless communication system includes at least a base station, at least a relay station, and at least a wireless communication device. The relay station is wirelessly connected to the base station. The wireless communication device is wirelessly connected to the relay station. At least two uplinks of the wireless communication system are inband or on the same carrier, and at least two downlinks of the wireless communication system are outband or on different carriers. | 05-05-2011 |
20110103270 | APPARATUS AND METHOD FOR CONFIGURING FRAME STRUCTURE IN FDD WIRELESS COMMUNICATION SYSTEM - An apparatus and method for reducing an overhead resulting from an transition gap in a Relay Station (RS) of a Frequency Division Duplex (FDD) wireless communication system are provided. The method includes determining transmission/reception transition time information through a negotiation with an upper node, identifying a signal delay time with the upper node, identifying a first reference time (R_Idle_Time), determining an overhead of a DownLink (DL) frame and an overhead of an UpLink (UL) frame resulting from transmission/reception transition in consideration of at least one of the transition time information, the signal delay time, the first reference time, and a second reference time (Idle_Time), and performing communication based on the overhead of the DL frame and the overhead of the UL frame. | 05-05-2011 |
20110128893 | RESOURCE ALLOCATION METHOD FOR BACKHAUL LINK AND ACCESS LINK IN A WIRELESS COMMUNICATION SYSTEM INCLUDING RELAY - A resource allocation method of a relay station in a wireless communication system employing the relay station is provided. The method includes: receiving information on a resource allocation pattern for an access link and a backhaul link of a first frequency band; and determining a resource allocation pattern for an access link and a backhaul link of a second frequency band on the basis of the resource allocation pattern of the first frequency band, wherein the first frequency band is any one of an uplink frequency band and a downlink frequency band, and the second frequency band is a remaining one of the uplink frequency band and the downlink frequency band. | 06-02-2011 |
20110134811 | MOBILE STATION RELAY COMMUNICATION SYSTEM AND METHOD - Mobile station relay communication system and method are provided. The method includes the following steps: a mobile station communication system using a mode of common frequency sending and receiving to transmit data; a mobile station out of a network and a mobile station in the network connect with each other for communication, and the mobile station in the network forwards the interactive data between the connected mobile station out of the network and the mobile station communication system. The present invention uses communication connection built between the mobile station out of the network and the mobile station in the network, and a TDD transmission mode with the function of common frequency sending and receiving, the mobile station in the network acts as a relay device to forward data to the mobile station out of the network, and thus the relay communication of the mobile station out of the network is realized, and the hardware of the mobile station relay communication system does not need to add other wireless interfaces. | 06-09-2011 |
20110170458 | APPARATUS AND METHOD FOR PHYSICAL CONTROL FORMAT INDICATOR CHANNEL (PCFICH) INFORMATION SHARING OVER RELAY BACKHAUL LINK - An apparatus and method for communicating information in a relay downlink backhaul between a base station and at least one relay node comprising: determining a first starting symbol index of at least one control channel in the relay downlink backhaul; determining a second starting symbol index of at least one data channel in the relay downlink backhaul; and communicating information using the at least one control channel based on the first starting symbol index and the at least one data channel based on the second starting symbol index in the relay downlink backhaul. In one example, the apparatus and method comprise receiving information using a control channel based on a first starting symbol index and a data channel based on a second starting symbol index in the relay downlink backhaul. | 07-14-2011 |
20110188413 | WIRELESS REPEATER DEVICE, METHOD AND SYSTEM FOR IMPLEMENTING CONTROL OF THE SAME IN A WIRELESS NETWORK SYSTEM - The invention relates to a wireless repeater device, a method and a system for implementing control of the device remotely over a wireless network. It is featured that the wireless repeater device is able to be configured by a direct control mode, an on-site mode and a remote control mode. Through the claimed system, a remote operator may access the wireless repeater device over a wireless network. The wireless repeater device particularly has a control modem circuit which is enabled by a mobile identification scheme, and the configuration can be performed over a mobile communication network. The signals carried with the control parameters from an operator end may be delivered in the form of SMS messages. | 08-04-2011 |
20110228709 | METHOD AND APPARATUS FOR RELAYING DATA IN WIRELESS COMMUNICATION SYSTEM BASED ON TDD - The present invention provides a method and an apparatus of relaying data in a wireless communication system based on Time Division Duplex (TDD). A relay station receives downlink data from a base station in an uplink subframe and relays the downlink data to at least one mobile station. Accordingly, the efficiency of resource allocation for a relay station can be improved. | 09-22-2011 |
20110235554 | COMMUNICATION METHOD, RELAY STATION, AND COMMUNICATION SYSTEM - A communication method, a relay station, and a communication system are provided. The method includes: communicating with a base station by adopting a first frame resource in a first frame structure; and communicating with a terminal served by the relay station by adopting a second frame resource in a second frame structure different from the first frame structure. Therefore, the base station and the relay station adopt different frame structures, so a problem that a Hybrid Automatic Repeat Request (HARQ) process is affected greatly by using the same frame structure is avoided, thereby improving the performance and a utilization rate of resources. | 09-29-2011 |
20110243037 | RELAY RADIO FRONT-END - A relay node ( | 10-06-2011 |
20110267991 | HARQ FEEDBACK FOR RELAY SYSTEMS - Certain aspects of the present disclosure provide techniques and apparatuses for acknowledging transmissions in a system utilizing a half-duplex node. According to certain aspects, a half-duplex node may receive, in a plurality of subframes, a plurality of downlink transmissions and send an uplink transmission comprising a plurality of bits indicative of whether the downlink transmissions were successfully received. | 11-03-2011 |
20110267992 | METHOD FOR RELAYING DATA PERFORMED BY A RELAY STATION IN WIRELESS COMMUNICATION SYSTEM BASED ON TDD - A method of relaying data performed by a relay station in a wireless communication system based on time division duplex (TDD) is provided. The relay station receives downlink data from a base station and relays the downlink data to at least one mobile station in an uplink subframe which belongs to an unlinked subframe. Accordingly, uplink acknowledgement (ACK) collision can be avoided, and efficiency of resource allocation can be increased. | 11-03-2011 |
20110267993 | METHOD FOR RELAYING DATA IN WIRELESS COMMUNICATION SYSTEM BASED ON TIME DIVISION DUPLEX - A method of relaying data in a time division duplex (TDD)-based wireless communication system is provided. The method includes configuring a downlink subframe as a multicast/broadcast single frequency network (MBSFN) subframe, receiving downlink data in the MBSFN subframe; and relaying uplink data to a base station in an uplink subframe, wherein the downlink subframe is linked to the uplink subframe which is reserved to transmit an acknowledgement (ACK)/non-acknowledgement (NACK) signal for downlink data transmission in the downlink subframe. Accordingly, in the TDD-based wireless communication system, efficiency of resource allocation can be increased, and uplink ACK collision can be avoided. | 11-03-2011 |
20110305172 | REVERSE LINK POWER-CONTROLLED REPEATER - The invention provides a mechanism for automatically setting reverse link gain or power for a repeater ( | 12-15-2011 |
20110310776 | TELECOMMUNICATIONS NETWORK - The present invention relates generally to a cellular telecommunications network. Each cell has at least one base station for sending messages on a downlink of a Frequency Division Duplex (FDD) to end user equipments within the cell and for receiving messages on an uplink from end user equipments within the cell. Other end user equipment located within the cell which have no or only poor communication directly with the base station over the FDD communicate with the base station indirectly via an intermediate end user equipment, such as a mobile telephone. The intermediate end user equipment includes an FDD transceiver and a Time Division Duplex (TDD) transceiver and an FDD/TDD interface. The intermediate end user equipment receives signals from the base station over the FDD using the FDD transceiver and relays them via the FDD/TDD interface and the TDD transceiver towards a relevant one of the other end user equipments over a TDD and receives signals from the other end user equipment over the TDD using the TDD transceiver and relays them via the FDD/TDD interface and the FDD transceiver to the base station over the FDD, The network provider thereby improves capacity and coverage by utilizing TDD channels without having to deploy and TDD infrastructure. | 12-22-2011 |
20120039220 | INTERLEAVING FOR RELAY PHYSICAL DOWNLINK CONTROL CHANNEL (R-PDCCH) - Certain aspects of the present disclosure provide methods and apparatus for interleaving control information for one or more nodes. For certain aspects, the control information may comprise one or more Relay Physical Downlink Control Channels (R-PDCCHs) for one or more relay nodes. The interleaving may comprise interleaving Common Reference Signal (CRS)-based R-PDCCH, wherein the resource elements (REs) for CRS and/or Channel State Information Reference Signal (CSI-RS) may be discounted in a physical resource block (PRB). | 02-16-2012 |
20120044841 | H-ARQ TIMING AND BACKHAUL SUBFRAME CONFIGURATION FOR TDD RELAY IN LTE-A - A method for wireless communication is provided, at a half-duplex node operating in TDD mode and may be used with an eNB in an LTE system. The method comprises receiving a configuration of a first set of subframes for a first link communication containing at least one downlink subframe and at least one uplink subframe. A second set of subframes for a second link communication is then determined. This second set includes at least one backward compatible downlink hybrid automatic repeat request process and at least one backward compatible uplink hybrid automatic repeat request process utilizing a second set of subframes. Communication begins with a first set of nodes using the first link and the first set of subframes. A second set of nodes using the second link and the second set of subframes is also used for communication. Communication to a legacy node is also supported. | 02-23-2012 |
20120057509 | REDUNDANCY SYSTEM FOR A TELECOMMUNICATION SYSTEM AND RELATED METHODS - A redundancy system for a co-channel telecommunication system and related methods. Implementations of the redundancy system may include at least a first modulator and a second modulator having a symbol mapper coupled to a parallel bit signal. The symbol mapper may be configured to route each of a plurality of parallel bits received through the parallel bit signal to a plurality of significant bit signals. In a first implementation, a plurality of significant bit signal multiplexers may be used to switch the plurality of parallel bit signals to allow the first and second modulators to operate in either a redundant or operating mode. In a second implementation, a premapped symbol (PMSI) encoder and a PMSI decoder may be used to transmit the plurality of significant bit signals across an interface bus as a real dual-data rate (DDR) signal and an imaginary DDR signal. | 03-08-2012 |
20120063369 | METHOD AND APPARATUS FOR MITIGATING RELAY INTERFERENCE - Methods and apparatuses are provided that include selecting resources for assigning to a device to mitigate relay self-interference when also communicating with a base station. The resources can be selected based on one or more factors, such as based on resources that are negotiated with the base station, or based on resources indicated as not desired for allocation from the base station, etc. In other examples, reference signals and control data can be communicated such as to mitigate relay self-interference as well. | 03-15-2012 |
20120069777 | System for Satellite Communications in Tunnels - The present invention relates to a satellite communication system for extending communications between a vehicle and a satellite in an area of non-visibility of the satellite. The satellite communication system comprises a fixed transceiver system and a mobile transceiver system. The fixed transceiver system includes a first antenna intended to be positioned outside the area of non-visibility of the satellite, and at least one second antenna coupled with the first antenna and intended to be positioned in the area of non-visibility of the satellite. The fixed transceiver system is configured to receive through the first antenna downlink signals transmitted by the satellite on at least one downlink carrier frequency and to transmit the received downlink signals on the at least one downlink carrier frequency in the area of non-visibility of the satellite through the at least one second antenna. The mobile transceiver system is intended to be installed on the vehicle, includes a third antenna and a fourth antenna, and is configured to receive through the third antenna the downlink signals transmitted by the fixed transceiver system on the at least one downlink carrier frequency, to receive through the fourth antenna the downlink signals transmitted by the satellite on the at least one downlink carrier frequency, to determine whether the vehicle is in the area of non-visibility of the satellite or in an area of visibility of the satellite, and to transmit uplink signals on at least one uplink carrier frequency through the third antenna if the vehicle is in the area of non-visibility of the satellite or through the fourth antenna if the vehicle is in an area of visibility of the satellite. The fixed transceiver system is further configured to receive through the at least one second antenna the uplink signals transmitted by the mobile transceiver system on the at least one uplink carrier frequency and to transmit the received uplink signals to the satellite on the at least one uplink carrier frequency through the first antenna. | 03-22-2012 |
20120069778 | METHOD, DEVICE AND SYSTEM FOR BACKHAUL LINK COMMUNICATION IN TDD SYSTEM - The present invention provides a method, device and system for backhaul link communication in a TDD system. Wherein, the method includes: a base station allocating an uplink subframe for uplink transmitting of the backhaul link and a downlink subframe for downlink transmitting of the backhaul link, and notifying subframe allocating information to a relay node; and the base station communicating with the relay node by the uplink subframe and the to downlink subframe of the backhaul link. The solution allocates the uplink subframe and the downlink subframe of the backhaul link according to certain rules, performs related HARQ operation based on the allocated uplink subframe and downlink subframe, and ensures the availability and reliability of backhaul link communication. | 03-22-2012 |
20120069779 | RELAYING SYSTEM AND METHOD WITH PARTNER RELAYS AND SELECTIVE TRANSMISSION - Partner relay systems and methods are provided in which relaying is performed by a pair of partner relays. Signals received from a base station are translated by a first of the pair of partner relays to a different transmission resource for communication between the pair of partner relays, and then upon reception by a second of the pair of partner relays, the signal is translated back to the original transmission resource and re-transmitted towards the receiver. | 03-22-2012 |
20120087283 | Multi-Hop Booster - A two-way wireless repeater and booster system and method are disclosed. The system and method improve signal quality and strength for the middle hop of a three-hop repeater, between User and Network Units operating in the unlicensed bands (ISM and/or UNII), and supporting the cellular (or wireless) network communications channels. The system and method enables the support of a wider repeat spectrum or bandwidth for a given communications bandwidth in the unlicensed band. | 04-12-2012 |
20120093040 | TRANSFERRING METHOD, RELAY STATION AND BASE STATION FOR UPLINK FEEDBACK INFORMATION IN RELAY LINK - The present invention provides a method for transmitting relay link uplink feedback information, a relay station and a base station, and the method comprises: determining timing relationship for transmitting the uplink feedback information according to relay subframe configuration (S | 04-19-2012 |
20120106404 | FDD AND TDD CARRIER AGGREGATION - In a first configuration, a first BS communicates with a first UE through at least one CC. The first BS determines whether to aggregate the at least one CC with at least one additional CC for communication with the first UE based on an interference caused to a second BS and/or a second UE. The at least one additional CC is used by the second BS to communicate with the second UE. In a second configuration, an BS communicates with a first UE and a second UE through at least one CC. The BS determines whether to aggregate the at least one CC and at least one additional CC for communication with the second UE based on an interference caused to the first UE and/or a third UE. The at least one additional CC is used by the first UE to relay information between the third UE and the BS. | 05-03-2012 |
20120106405 | Self-Interference Suppression in Full-Duplex MIMO Relays - A method, and an apparatus, for self-interference suppression in a relay ( | 05-03-2012 |
20120127897 | METHOD FOR RETRANSMITTING DATA IN WIRELESS COMMUNICATION SYSTEM - A method for retransmitting data in wireless communication system is disclosed. MS can receive a NACK (Not-Acknowledge) signal from a base station (BS) through a specific downlink subframe of a specific frame in a first superframe, and the MS can retransmits the data using a second uplink subframe in a first frame in a second superframe subsequent to a first superframe. In this case, a index of the second uplink subframe may be 1. The wireless communication system can support the Half-Frequency Division Duplex (H-FDD) scheme. A first uplink subframe in the first frame of the second superframe can be punctured. | 05-24-2012 |
20120147792 | RELAYING NODE, TIME DIVISION DUPLEX COMMUNICATION SYSTEM AND COMMUNICATION METHOD - A relay node, time division duplex communication system and communication method are disclosed. The communication system comprises a base station, mobile stations and the relay node. The relay node will not be in receiving and transmitting state synchronously. The communication method comprises that the relay node receives a first signal from the base station in a predetermined downlink subframe of a frame and transmits a second signal to the base station in a predetermined uplink subframe of the frame, wherein the first signal is a response signal for the second signal or the second signal is a response signal for the first signal | 06-14-2012 |
20120188919 | ISOLATION MEASUREMENT AND SELF OSCILLATION PREVENTION IN TDD-OFDM REPEATER FOR WIRELESS BROADBAND DISTRIBUTION TO SHADOWED AREAS - A method for determining isolation status of the RF repeater is provided. A modem in the repeater registers with a base transceiver station (BTS). Uplink output levels of a donor RF transceiver are calibrated and stored in the modem. The modem is synchronized to a BTS transmission received at the donor RF transceiver and the synchronization information is provided to a server RF transceiver of the repeater. Isolation detection and measurement can then be performed between donor transmit antenna and receive server antenna of the RF repeater and the automatic gain control parameter of donor RF transceiver and server RF transceiver are adjusted based upon the isolation detection and measurement value. The isolation and detection can be implemented in a co-processor coupled to the donor and server transceivers. | 07-26-2012 |
20120207065 | Radio communication system and a repeater - A radio communication system for a communication between a base station and a mobile terminal. The radio communication system repeats a signal transmitted from the base station at repeaters that are multistage-connected by a leaky coaxial cable. Each repeater converts a frequency of an input signal into a different frequency and outputs the frequency-converted signal to the leaky coaxial cable connected to the repeater. The repeaters are provided between the leaky coaxial cables connected in series. | 08-16-2012 |
20120207066 | APPARATUS AND METHOD FOR BIDIRECTIONAL COMMUNICATION BETWEEN MULTI-NODES USING RELAY NODE - An apparatus for bidirectional communication between multi-nodes using a relay node receives 2M signals, encoded using a nested lattice code chain, from a base station and M user nodes in a predetermined time interval, estimates M pairwise lattice code sum signals between the base station and the M user nodes based on the nested lattice code chain with respect to the 2M encoded signals, encodes the M pairwise lattice code sum signals to broadcasting codewords to generate M encoded signals after the predetermined time interval has ended, and transmits the M encoded signals to the base station and the M user nodes. | 08-16-2012 |
20120275351 | REPEATER FOR TIME DIVISION DUPLEXED SIGNAL, AND CORRESPONDING MULTI-BAND REGENERATION AND NETWORK - Embodiments herein relate to a repeater for time division duplexed signals. The repeater comprises, for each channel of the time division duplexed signal, a pair of access points. The first access point of the pair being configured in a first mode, and the second access point of the pair being configured in a second mode. The pair of access points being linked by a broadband serial wired data connection. The invention further relates to a multi-band regenerator and a network comprising such a repeater. | 11-01-2012 |
20120294202 | METHOD OF COMMUNICATION - A method of communication comprising: at time=t: a first multiple antenna relay node decoding and forwarding a first STBC coded signal from a source node, and a first decoded and forwarded STBC signal from a second multiple antenna relay node, and a destination DSTTD receiver decoding the first STBC coded signal from the source node, and the first decoded and forwarded STBC signal from the second multiple antenna relay node; at time=t+1: the second multiple antenna relay node receiving a second STBC coded signal from the source node, and a second decoded and forwarded signal from the first multiple antenna relay node, and the destination DSTTD receiver decoding the second STBC coded signal from the source node, and the second decoded and forwarded signal from the first multiple antenna relay node. | 11-22-2012 |
20120300680 | TRANSMISSION SCHEMES FOR RELAY - Techniques for processing and forwarding transmissions by a relay are disclosed. In one aspect, an orthogonal distributed space-time frequency code (DSTFC) scheme that supports full-duplex relay operation and mitigates self-interference is disclosed. With the orthogonal DSTFC scheme, a source node transmits a same modulation symbol on two subcarriers in one symbol period. The relay obtains two received symbols from the two subcarriers and generates two output symbols based on these received symbols such that the output symbols and the modulation symbol are orthogonal at the relay and a destination node. In another aspect, a distributed Alamouti scheme is disclosed in which the source node transmits two modulation symbols on two subcarriers in each of two consecutive symbol periods. The relay obtains two received symbols from the two subcarriers in one symbol period and generates two output symbols based on the received symbols and in accordance with an Alamouti code. | 11-29-2012 |
20130058264 | Method and Arrangement in a Wireless Communication Network - Method and arrangement in a base station for sending control signals to a relay node. The relay node is configured to relay a data transmission from the base station to a user equipment in a subframe. The subframe comprises a first part, dedicated for downlink transmission, a second part dedicated for uplink transmission and a separating part situated between the first part and the second part. The base station, the relay node and the user equipment are comprised in a wireless communication network configured to operate according to the Time Division Duplex TDD principle. The method comprising transmitting data to the user equipment via the relay node in the first part of the subframe and transmitting the control signals, related to the transmitted data, to the relay node in the separating part between the first part and the second part of the subframe. Further, a method and arrangement in a relay node for receiving control signals from the base station are described. | 03-07-2013 |
20130208632 | NOISE MANAGEMENT FOR COMMUNICATION SYSTEM - A duplex communication system having gate-implemented noise management is contemplated. The system may include a gate or other device sufficiently operable to facilitate managing upstream and downstream signaling so as to ameliorate noise funneling between communicating endpoints by selectively controlling communication paths through which noise may be propagated. Optionally, the system may be operably configured to facilitate this type of gate-implemented noise management for time domain duplex (TDD) and frequency domain duplex (FDD) communications. | 08-15-2013 |
20130286901 | Downlink Feedback Method for Time Division Dual System and Relay Link Thereof - The present invention discloses a Time Division Dual (TDD) system and a downlink feedback method for a relay link thereof. A relay station and a network side of the TDD system transmit uplink data and downlink feedback through relay subframes, wherein: one or more uplink subframes are selected from uplink subframes of a wireless frame as uplink relay subframes used for uplink data transmission, a downlink subframe is determined for each uplink relay subframe from downlink subframes of the wireless frame as a downlink relay subframe used for downlink feedback or new data indication, wherein the uplink relay subframes and the downlink relay subframes have a fixed timing sequence relationship; the relay station transmits uplink data to the network side through the uplink relay subframes, and receives the downlink feedback or new data indication from the network side through the downlink relay subframes corresponding to the uplink relay subframes. | 10-31-2013 |
20140064158 | METHODS AND ARRANGEMENTS IN A NETWORK NODE - A method and arrangement in a first network node, which is serving a user equipment, for determining whether a handover of the user equipment is to be made to a second network node. The first network node and the second network node are configured for wireless communication with each other over a backhaul link in half-duplex communication mode. The first network node obtains an estimation of data-rate performance over the backhaul link, and determines whether to hand over the user equipment to the second network node based on the obtained estimation of the data-rate performance over the backhaul link. | 03-06-2014 |
20140098718 | WIRELESS COMMUNICATIONS SYSTEM INCLUDING SINGLE CHANNEL RETRANSMISSION AND RELATED METHODS - A wireless communications system may include wireless communications devices configured to communicate with one another on a given channel via a time division based communications protocol. A communication initiation wireless communications device configured to transmit data in an initiator time slot of the given channel. A repeater wireless communications device configured to receive the transmitted data from the communications initiation wireless communications device in the initiator time slot and retransmit the data in a repeater time slot of the given channel. A receiver wireless communications device configured to determine a respective quality metric for data from each of the initiator time slot and the repeater time slot, and use data from the initiator time slot or the repeater time slot based upon the respective quality metrics thereof. | 04-10-2014 |
20140133367 | CONTROL CHANNEL MANAGEMENT FOR RELAY BACKHAUL - Aspects of the present disclosure provide techniques for managing control channels for relays that utilize half-duplex operation. According to certain aspects, a certain type of PDCCH may be selected based on one or more criteria. | 05-15-2014 |
20140133368 | TELECOMMUNICATIONS NETWORK - The present invention relates generally to a cellular telecommunications network. Each cell has at least one base station for sending messages on a downlink of a Frequency Division Duplex (FDD) to end user equipments within the cell. Other end user equipment located within the cell which have no or only poor communication directly with the base station over the FDD communicate with the base station indirectly via an intermediate end user equipment, such as a mobile telephone. The intermediate end user equipment includes an FDD transceiver and a Time Division Duplex (TDD) transceiver and an FDD/TDD interface. The intermediate end user equipment receives and sends signals to/from the base station over the FDD using the FDD transceiver and relays them via the FDD/TDD interface and the TDD transceiver towards a relevant one of the other end user equipments over a TDD. | 05-15-2014 |
20140241218 | METHOD AND SYSTEM FOR DISTRIBUTED COMMUNICATION - A decentralized communication device is provided that facilitates optimal positioning and orientation of one or more antennas for wireless communication with external devices. The decentralized communication device includes one or more master components and one or more slave components. The master and the slave components are physically separate and communicate wirelessly. In some embodiments the slave acts as a carrier frequency translator between the master and an external wireless device, where it communicates with the external device using a first frequency and communicates with the master using a second frequency which is different from the first frequency. In another embodiment the slave has most or all the physical layer to do the digital coding, digital modulation, data framing, data formatting and data packetization for communicating with an external device, in which case digital coding and digital modulation is distributed between the master and the slave. | 08-28-2014 |
20140328224 | PROCESSING UPLINK SIGNAL AND DOWNLINK SIGNAL IN RADIO UNIT - Described embodiments provide a method for processing an uplink signal in a radio unit. A first uplink signal may be received directly from user equipment. The received uplink signal may be delayed using uplink delay information. A second uplink signal may be received indirectly from user equipment through at least one repeater connected to the radio unit. The delayed first uplink signal and the second uplink signal may be combined and transmitted to a digital unit. | 11-06-2014 |
20140362743 | RESOURCE ALLOCATION METHOD FOR BACKHAUL LINK AND ACCESS LINK IN A WIRELESS COMMUNICATION SYSTEM INCLUDING RELAY - A resource allocation method of a relay station in a wireless communication system employing the relay station is provided. The method includes: receiving information on a resource allocation pattern for an access link and a backhaul link of a first frequency band; and determining a resource allocation pattern for an access link and a backhaul link of a second frequency band on the basis of the resource allocation pattern of the first frequency band, wherein the first frequency band is any one of an uplink frequency band and a downlink frequency band, and the second frequency band is a remaining one of the uplink frequency band and the downlink frequency band. | 12-11-2014 |
20150023226 | FULL DUPLEX INDIVIDUAL CALL VIA LINKED SINGLE FREQUENCY REPEATERS - A method for enabling full duplex individual calls in repeater mode between two subscriber units (SUs) in a N:1 slotting ratio time division multiple access (TDMA) radio system includes receiving a request for a full duplex individual call from a first SU identifying a second SU as a target of the call. Determining to grant the request and subsequently assigning a first time slot of the N time slots on a first single frequency for one of inbound and outbound transmissions for the call between an assigned second repeater and the first SU and a second time slot on the first single frequency for the other of inbound and outbound transmissions for the call between the assigned second repeater and the first SU. Further, a grant message is transmitted to the first SU indicating the assigned first single frequency and assigned first and second time slots. | 01-22-2015 |
20150029909 | BI-DIRECTIONAL SIGNAL BOOSTER - A signal booster may include first and second uplink gain units each configured to apply an uplink gain to an uplink signal. The signal booster may further include first and second downlink gain units each configured to apply a downlink gain to a downlink signal. The signal booster may also include a passive signal directing unit configured to communicatively couple the first uplink gain unit to the second uplink gain unit and to communicatively couple the first downlink gain unit to the second downlink gain unit. | 01-29-2015 |
20150063176 | FULL-DUPLEX RELAYS - A relay including a first transmitter that converts a first digital transmit signal to a first analog transmit signal, a first receiver that converts a first analog receive signal to a first digital receive signal, a second transmitter that converts a second digital transmit signal to a second analog transmit signal, a second receiver that converts a second analog receive signal to a second digital receive signal, and a self-interference canceller that generates a first self-interference cancellation signal based on at least one of the first digital transmit signal and the first analog transmit signal, and combines the first self-interference cancellation signal with at least one of the first digital receive signal and the first analog receive signal. | 03-05-2015 |
20150103700 | GROUP TWO-WAY RADIO SYSTEM FOR PROVIDING TEMPORARILY EMERGENTLY EXPANDING COMMUNICATION RANGE AS A PORTABLE DISPATCH SYSTEM WITH NO AVAILABLE SIGNAL REPEATER INVOLVED - A portable or vehicle radio of a two-way radio system for use by a group is generally in direct call mode as a generic radio. Once a communication range is needed to be expanded under a condition of no available repeater, a group commander is able to designate a two-way radio most suitable for functioning as a signal repeater according to GPS location through over-the-air programming or manual control to expand the communication range. The signal repeater retransmits signals being received through time division multiple access (TDMA) over a same channel at different time slots that provides a function of expanding a communication range as a conventional dual-band repeater transmitting signals over uplink and downlink bands does. Therefore, the present invention functions as a generic radio, so as to become a mobile disposal system for providing temporary, emergent and expanded communication range when an emergency is occurred. | 04-16-2015 |
20150103701 | METHOD FOR RELAYING DATA PERFORMED BY A RELAY STATION IN WIRELESS COMMUNICATION SYSTEM BASED ON TDD - A method of relaying data performed by a relay station in a wireless communication system based on time division duplex (TDD) is provided. The relay station receives downlink data from a base station and relays the downlink data to at least one mobile station in an uplink subframe which belongs to an unlinked subframe. Accordingly, uplink acknowledgement (ACK) collision can be avoided, and efficiency of resource allocation can be increased. | 04-16-2015 |
20160164660 | METHOD FOR PERFORMING A HARQ PROCESS AND APPARATUS USING SAME - A method for transmitting control information related to a hybrid automatic repeat request (HARQ) process operation using a frequency division duplex (FDD) frame structure by a base station (BS) in a wireless communication system; the BS therefore; a method for receiving control information related to a HARQ process operation using a FDD frame structure by an RN; and the RN therefore are discussed. The method for transmitting control information according to one embodiment includes transmitting information related to a number of HARQ processes. The HARQ processes are sequentially assigned to subframes configured for the RN-to-the BS transmission. If a subframe configured for the BS-to-the RN transmission is a subframe n, a subframe configured for the RN-to-the BS transmission is a subframe n+4. The method further includes transmitting a HARQ ACK/NACK signal for uplink data through a corresponding subframe based on the number of HARQ processes. | 06-09-2016 |