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| Number | Title | Issue Date |
| 8180384 | Transmit data timing control An RF transmitter that, during a transmission session, transmits multiple data slices, which are synchronized to each other by a transmit counter. Typically, the time between transmission of consecutive data slices is constant; however, to synchronize the transmissi... | 05/15/2012 |
| 8170592 | Method and system for frame timing acquisition in evolved universal terrestrial radio access (EUTRA) Aspects of a method and system for frame timing acquisition in evolved universal terrestrial radio access (EUTRA) may include determining a received secondary synchronization sequence (SSS) based on a selected cyclic prefix length and on synchronization of a primary... | 05/01/2012 |
| 8165616 | Communication device, base station, method of communication, and communication system The MS detects a difference in timing or frequency between a reference signal being any one of the received signals from a plurality of BSs and each of the other received signals, notifies the results of detection to BSs other than the source BS of the reference sig... | 04/24/2012 |
| 8165615 | Cellular network system A method for providing a personalized bidirectional channel in broadcasting systems. In cellular broadcasting system the method contains the steps of: allocating a first group of subcarriers to broadcast transmission and a second group of subcarriers to personalized... | 04/24/2012 |
| 8155680 | Sensing RF environment to synchronize network elements Providing a frequency reference to a mobile telecommunications base station is disclosed. A radio frequency signal that includes a periodic component having a known frequency is received. A frequency reference is derived from the received radio signal, based at leas... | 04/10/2012 |
| 8145247 | Clock synchronization for a wireless communications system Clock synchronization for a wireless communication system is described. The communication system utilizes a server with a radio coupled to receive a radio frequency (RF) signal and a clock interface to receive a reference clock signal. The server includes a network ... | 03/27/2012 |
| 8145246 | Low latency, high quality link for audio transmission 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... | 03/27/2012 |
| 8140099 | User-input scheduling of synchronization operation on a mobile device based on user activity Data is synchronized between a mobile device and a computing device over a wireless link. Synchronization operations are scheduled according to a synchronization schedule that is based on a current time of day. In one embodiment, the day can be divided into differen... | 03/20/2012 |
| 8126488 | Wireless communication system and related methods A method of operating a wireless mesh network comprises generating a pseudorandom sequence element in a transmitting device and a receiving device of the network using information shared by the transmitting and receiving devices. The pseudorandom sequence element is... | 02/28/2012 |
| 8107984 | System and method for synchronizing wireless communication devices According to the present invention, Bluetooth master device offset information is determined and distributed among the master devices within a Bluetooth network. The system either provides an offset to each master device or determines master device offsets and distr... | 01/31/2012 |
| 8095161 | System and method for determining a transmit timing for communication in a radio communication system A method for determining a transmission timing is provided. The method includes steps of, at a first point in time, determining a first transmission timing for transmissions from a user entity to a first radio transceiver, and determining a representation of a first... | 01/10/2012 |
| 8095160 | Intermediate station and method for facilitating handover in a multi-hop communication system An intermediate station and method for facilitating handover in a multi-hop communications system is disclosed. The method may include receiving a handover trigger, finding a target station to receive handover, determining whether the handover requires a timing chan... | 01/10/2012 |
| 8064937 | Mobile user terminal, mobile communication system, base station, and communication method A mobile user terminal (UE), which measures downlink channel quality, and which transmits downlink quality information indicating the measured downlink channel quality and an uplink pilot signal to be used for measuring uplink channel quality to a base station (BS),... | 11/22/2011 |
| 8055288 | System and method for distributing accurate time and frequency over a network A system to distribute accurate time and/or frequency over a network utilizing signals of opportunity transmitted by one or more local transmitters with known locations, the system includes a base receiver with a clock synchronized to a reference time scale such as ... | 11/08/2011 |
| 8046015 | Adaptive tuning to improve demodulator performance A receiver is tuned to a transmission frequency of a data signal after the receiver has already locked onto a frequency carrying the data signal. A frequency offset between a locked frequency of a tuner on the receiver and the actual transmission frequency is determ... | 10/25/2011 |
| 8023976 | Method and system for accurate clock synchronization for communication networks A high accuracy clock synchronization mechanism between a sender and a receiver in a communication network achieves time synchronization using broadcast beacons, directly at the PHY/MAC layer of the sender and the receiver, to minimize synchronization delay jitter. ... | 09/20/2011 |
| 8019370 | Method and apparatus for a power-efficient framework to maintain data synchronization of a mobile personal computer to simulate a connected scenario An apparatus and method for a power-efficient framework to maintain data synchronization of a mobile personal computer (MPC) are described. In one embodiment, the method includes the detection of a data synchronization wakeup event while the MPC is operating accordi... | 09/13/2011 |
| 8010138 | Alternate mobile network cell synchronization A host base transceiver station BTS derives a reference timing signal from a physical layer training signal (such as a preamble) received from a neighbor network node/BTS. Downlink transmissions are then synchronized to the derived reference timing signal. This may ... | 08/30/2011 |
| 7996028 | User-input scheduling of synchronization operation on a mobile device based on user activity Data is synchronized between a mobile device and a computing device over a wireless link. Synchronization operations are scheduled according to a synchronization schedule that is based on a current time of day. In one embodiment, the day can be divided into differen... | 08/09/2011 |
| 7991414 | Position computation in a positioning system using synchronization time bias In general, this disclosure is directed to techniques for computing a positioning solution for a mobile unit based on signals received from the satellite navigation system and the wireless communication system. The techniques allow for, and resolve, a synchronizatio... | 08/02/2011 |
| 7983702 | Synchronization of a peer-to-peer communication network In an ad hoc peer-to-peer communications network, timing synchronization is facilitated between two or more nodes. A node can establish an original symbol timing and receive a first timing synchronization symbol from a peer node. A timing adjustment can be calculate... | 07/19/2011 |
| 7979083 | Reducing interference from closely proximate wireless units A wireless device may include two or more wireless interfaces capable of transmitting and/or receiving signals over separate wireless networks. To reduce the likelihood of interference, a processing unit may determine whether to permit a transmission under one wirel... | 07/12/2011 |
| 7974647 | Mobile apparatus and method of timing synchronization A mobile apparatus and method of timing synchronization. The mobile apparatus comprises a timing synchronization controller, a frame detector, a decoder, and a clock generator. The timing synchronization controller determines a number of times of the mobile station ... | 07/05/2011 |
| 7974648 | Radio communication system, and transmitter, receiver, transmitting circuit, and receiving circuit used for the same A transmitter (1) applies current from a power supply node to a ground node in synchronization with only a rise of an input signal and transmits a transmission signal including an RF pulse signal to a receiver (2). The receiver (2) applies curre... | 07/05/2011 |
| 7974649 | Mobile user terminal, mobile communication system, base station, and communication method A mobile user terminal, which transmits downlink quality information indicating downlink channel quality and an uplink pilot signal to a base station, in which a carrier frequency used for transmitting the downlink quality information and a carrier frequency used fo... | 07/05/2011 |
| 7949356 | Clock synchronization over a shared medium Communicating among stations in a network includes providing repeated beacon transmissions from at least some of the stations including a first station. The first station is assigned to a first level. Any stations that can reliably receive transmissions from the fir... | 05/24/2011 |
| 7941168 | Mobile communication system, radio base station, mobile station and mobile communication method to control uplink and downlink channel for synchronization A mobile communication system is configured to control a transmission rate of user data to be transmitted from a mobile station to a radio base station via an uplink transmission rate allocation shared physical control channel, and to transmit user data from the rad... | 05/10/2011 |
| 7941167 | Mobile device synchronization based on proximity to a data source A system for data communication is disclosed. The system comprises a detection module that ascertains when a mobile wireless communication device is located within a first range of a data source. The system further comprises a data module that automatically sends in... | 05/10/2011 |
| 7941166 | Method for synchronizing a radio communication system divided into radio cells Data is transmitted via time division multiple access methods and every radio cell includes one base station each for the radio coverage of a plurality of mobile stations assigned to the radio cell. The base station receives, in addition to mobile station signals of... | 05/10/2011 |
| 7933618 | Apparatus, and associated method, for selectably delaying synchronization of database copies in a radio communication system Apparatus, and an associated method, for selectably delaying performance of synchronization operations in which database copies are placed in match with one another. A user of a mobile node at which a database copy is maintained selectably actuates an actuator to se... | 04/26/2011 |
| 7929983 | Method and apparatus for neighbor cell synchronization The present invention is directed to a neighbor cell synchronization method for a mobile communication unit. The method includes selecting a neighbor cell according to a scheduling mechanism; determining a synchronization window according to a communicating mode of ... | 04/19/2011 |
| 7925285 | System and method for synchronizing wireless communication devices According to the present invention, Bluetooth master device offset information is determined and distributed among the master devices within a Bluetooth network. The system either provides an offset to each master device or determines master device offsets and distr... | 04/12/2011 |
| 7920881 | Clock synchronization for a wireless communications system A method of clock synchronization for a wireless communications system includes receiving a radio frequency (RF) signal at a base station and at a network reference server (NRS). The NRS is also coupled to receive a reference clock signal. A clock offset value is th... | 04/05/2011 |
| 7885671 | System and method for state synchronization between a base station and a mobile station in a mobile communication system A system and method for state synchronization between a base station and a mobile station in a mobile communication system. A count value indicative of a state change of the base station is received. The received current count value is compared with a previous count... | 02/08/2011 |
| 7877104 | Method for synchronizing a radio network using end user radio terminals The present invention discloses a method and system for monitoring a wireless network clock compared to an absolute time scale using the user mobile stations themselves. The major advantage is the capability to transfer GPS time to a Mobile Station in a wireless net... | 01/25/2011 |
| 7877105 | Method and arrangement for frequency synchronization of a mobile station with a base station in a mobile communication system In a method for synchronizing a mobile station with the base station in a mobile communication system, a reference-frequency oscillator is re-adjusted. To enable an inexpensive reference-frequency oscillator of simple construction to be used, the frequency variation... | 01/25/2011 |
| 7853277 | Method and system of piconet groups A set of piconets and corresponding methods and computer programs may reduce contention time between piconets. In one embodiment, a seven-length code architecture may be used with group(s) of bands so that contention time cannot exceed 1/7 of the time. Up to seven d... | 12/14/2010 |
| 7844289 | Method and apparatus for synchronization of base stations in a broadband wireless access system Synchronization between base stations in a broadband wireless access system is achieved using interfering base stations. Interfering base stations are first identified for a base station of interest (BSOI). One of the interfering base stations is then selected to be... | 11/30/2010 |
| 7840228 | Inter-base station synchronization system, synchronization control device, and base station A base station synchronization system, a synchronization controller, and a base station are provided that are capable of establishing precise synchronization among a plurality of base stations. In a base station synchronization system including a plurality of base s... | 11/23/2010 |
| 7831554 | Mobile data management using association table Middleware for mobile data management may include an association table and a message store. The middleware may operate to receive a business object instance from a backend system, determine one or more mobile devices associated with the business object instance, ass... | 11/09/2010 |
