Abstract:
A real time data transmission method is used in a network in which a real time media gateway is provided to allow access to the internet backbone in addition to the usual GPRS specific gateway. The method involves changing the header in a real time data stream as it passes through the network so that it can pass directly to the real time gateway without passing through the GPRS specific gateway. This ensures that the data stream travels along a more direct route and shortens the headers used in the data stream in the process.
Abstract:
Methods for formal verification of circuits and other finite-state systems may improve efficiency and capacity of popular binary decision diagram (BDD) based algorithms. A lazy pre-image computation method builds new transition relation partitions on-demand only for relevant next internal variables of a state predicate, and conjoins only next state relations for relevant next internal variables to a pre-image including the state predicate. A lazy backward reachability analysis method makes iterative use of the lazy pre-image computation method to compute the set of states reachable to a given set of states in zero or more transitions. A lazy equivalence checking method makes iterative use of the lazy pre-image computation method to compute conditions that necessarily must be satisfied to disprove equivalence. These methods may provide for symbolic model checking of circuits and other finite state systems previously too large to be completed successfully using BDD based algorithms.
Abstract:
The present invention involves a receiving method and apparatus for use in a communication system wherein a spread-spectrum signal containing information bits is transmitted within an environment tending to produce multipath fading. The receiving apparatus includes a channel estimator which estimates channel coefficients, preferably corresponding to the level of correlation between the various multipath components of the spread-spectrum signal and a cell-correlation signal. A channel selector is configured to select one or more of the multipath components based on the channel coefficients, typically choosing multipath components with the greatest level of correlation, a condition which is indicative of a high signal-to-noise power ratio. The channel selector also identifies time delay values representing the time delay between such selected multipath components, such time delay values being used by a spread-spectrum receiver to identify the selected multipath components for presentation on plural diversity branches. A combiner combines the diversity branches in a predetermined manner, typically by weighted summation using weighting factors produced by the channel selector. A decoder extracts information from the combined signal.
Abstract:
New polymer compositions based on poly(2,6-dimethyl-1,4-phenylene oxide) and other high-softening-temperature polymers are disclosed. These materials have a microphase domain structure that has an ionically-conductive phase and a phase with good mechanical strength and a high softening temperature. In one arrangement, the structural block has a softening temperature of about 210° C. These materials can be made with either homopolymers or with block copolymers.
Abstract:
The disclosure provides a method and a device for feeding back Acknowledgment (ACK) information during switching of backhaul link subframe configuration, and the method includes during the switching of the backhaul link subframe configuration, if Uplink (UL) ACK/Negative ACK (NACK) information, which corresponds to a last transmission before the switching of one or more Downlink (DL) Hybrid Automatic Repeat Request (HARQ) transmissions, is not fed back on a UL subframe which is before the switching, feeding back the ACK/NACK information on an available UL subframe which is after the switching since Nms after the last transmission, wherein N is an integer. The disclosure achieves the effect of correctly feeding back the ACK information during switching of the backhaul link subframe configuration.
Abstract:
PVDF-g-PAN has been synthesized by grafting polyacrylonitrile onto polyvinylidene fluoride using an ATRP/AGET method. The novel polymer is ionically conducive and has much more flexibility than PVDF alone, making it especially useful either as a binder in battery cell electrodes or as a polymer electrolyte in a battery cell.
Abstract:
The disclosure discloses a method, system and RN for processing UCI on a backhaul link. The method comprises that: the RN determines Q′ which is the number of the coded modulation symbols of the backhaul UCI according to the number of SC-FDMA symbols occupied by a GP, wherein the GP comprises RN state switch time deltaT and/or the time interval deltat which is reserved for avoiding the interference caused by RN uplink transmission, and deltaT is the switch time required by the RN to switch from an uplink reception state to an uplink transmission state and/or from the uplink transmission state to the uplink reception state; and the RN codes the backhaul UCI into a Q=Q′×Qm bits sequence, wherein Qm is the number of bits comprised in each coded modulation symbol in the modulation order of the backhaul uplink subframe. The disclosure improves the performance of the system.
Abstract:
A method performed by a wireless node includes receiving policies for data offloading; identifying a user associated with a data flow to which a user device is attached; determining whether data offloading is permitted for the user based on the policies; and performing data offloading when it is determined that data offloading is permitted for the user, wherein data offloading includes routing the data flow away from at least one of a higher layer traffic aggregation device relative to the wireless node or a higher hierarchical controlling device relative to the wireless node.
Abstract:
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 (S202); a relay station determining an uplink relay subframe for transmitting the uplink feedback information according to the timing relationship (S204), and transmitting the uplink feedback information via the uplink relay subframe (S206). The present invention ensures the reliability of downlink communication between the base station and the relay station, and the transmission of this feedback information would not cause effect on user equipment.
Abstract:
A communications system for providing a user's mobile station (MS) with an Internet Protocol (IP) connectivity, has an IP network gateway for allocating an IP address to the MS to enable it to access an IP network. First and second base stations are respectively configured to support communications of the MS over first and second radio access networks using different radio access technologies. A first access gateway provides an interface between the IP network gateway and the first radio access network, whereas a second access gateway provides an interface between the IP network gateway and the second radio access network. A handover interface is provided between the first access gateway and the second access gateway for enabling the MS to switch between the first and second radio access networks with minimum latency.