Class / Patent application number | Description | Number of patent applications / Date published |
370320000 | Code division (CDMA) | 22 |
20080198792 | APPARATUS AND METHOD FOR CHANNEL CODING AND MULTIPLEXING IN CDMA COMMUNICATION SYSTEM - A channel coding and multiplexing apparatus and method in a CDMA communication system is disclosed. In the channel coding and multiplexing apparatus, each of a number of radio frame matchers (equal in number or greater than the number of transport channels) has a radio frame segmenter and segments each of transport channel frames that may have different transmission time intervals to radio frames. A multiplexer multiplexes the radio frames to form a serial data frame. | 08-21-2008 |
20080205325 | METHOD AND SYSTEM FOR ASSOCIATION IN RELAY NETWORK - A method and system for association in a relay network are disclosed; a neighbor Base Station (BS) receives a ranging request from an associated neighbor station and the ranging request is received by the associated neighbor station from an MS; the neighbor BS sends a ranging response to the MS in response to the ranging request; the associated neighbor station is an RS. Association Level 1 is implemented. Another method and system for association in a relay system are disclosed; a neighbor BS receives a ranging report from an associated neighbor station after the associated neighbor station receives a CDMA code from an MS; the neighbor BS sends the ranging report to the MS or to a serving BS by which the ranging report is sent to the MS; the associated neighbor station is an RS. Association Level 2 is implemented. | 08-28-2008 |
20080212519 | Method for Establishing a Call Rapidly in Cdma Cluster Communication System - A method for establishing a call rapidly in a cluster communication system based on code division multiple access, comprising the following steps: a dispatching station server transmitting a normal group call request to a base station subsystem after receiving a normal group call request sent by a calling terminal; the each base station in a dispatching area allocating resource and establishing a forward-reverse traffic channel required by a normal group call service in the base station side after receiving the normal group call request; each sector of the base station in the dispatching area sending a broadcast channel assignment message in a form of broadcast message to the terminals in an idle state in the sector in a forward control channel; the terminals in the sector comparing a broadcast address with a group identification stored, if matching, the terminal establishing each service channel in the side of the terminal in the called state according to the broadcast channel assignment message received; if the broadcast address not matching the group identification stored, the terminal discarding the broadcast channel assignment message. | 09-04-2008 |
20080212520 | METHOD AND APPARATUS FOR FREQUENCY HOPPING WITH FREQUENCY FRACTION REUSE - A method and apparatus for a wireless communication system, for frequency hopping using frequency fraction reuse scheme. The frequency hopping pattern is generated by dividing a portion of frequency into plurality of sub-bands, dividing a portion of time into plurality of sectors, each sector comprising the divided sub-bands, designating one of the divided sub-band within one of the sectors as the restricted sub-band, and allocating a location the designated sub-band as a restricted sub-band. | 09-04-2008 |
20080212521 | Method and Apparatus for Acknowledging a Reception of a Data Packet in a CDMA Communication System - In a communication system ( | 09-04-2008 |
20080232298 | APPARATUS AND METHOD FOR OBTAINING IP ADDRESS OF TERMINAL USING MULTIPLE FREQUENCY ALLOCATIONS IN BROADBAND WIRELESS COMMUNICATION SYSTEM - An Internet Protocol (IP) address acquisition in a broadband wireless communication system is disclosed. A terminal includes a driver for loading one of a plurality Media Access Control (MAC) addresses for a multi-Frequency Allocation (FA) connection when the terminal is initialized; an interface for registering the loaded MAC address to use in an upper layer of a MAC layer; and a manager for acquiring an IP address using the registered MAC address when a network entry for at least one FA is complete. | 09-25-2008 |
20080304437 | TCP Start Protocol For High-Latency Networks - In a TCP start protocol for a network including a link for which a minimum guaranteed transmission bandwidth has been negotiated, packets are transmitted at an initial rate that is inversely dependent on the guaranteed bandwidth, until an acknowledgement is received from the receiver. In this way, congestion in the link is avoided and transmission performance is improved. | 12-11-2008 |
20090003262 | METHOD, SYSTEM AND DEVICE FOR SIGNALING PROCESSING IN A CDMA SYSTEM - A method, system and device of signaling processing in a CDMA system is provided. A switching device of a calling party sends information related to a call of the calling party to a service control point of the calling party, after the switching device detects that the calling party releases the call before a called party answers, and the service control point releases resources related to the call according to the information related to the call. | 01-01-2009 |
20090034449 | FINGER MANAGER FOR ENHANCED DEDICATED CHANNEL (E-DCH) APPLICATIONS - A downlink channel receiver operable to implement finger management strategies with fractional dedicated physical channel (F-DPCH) and E-DCH processing within a Rake receiver structure is provided. The downlink channel receiver includes a receiver, a baseband processing block, and a WCDMA processing block, wherein F-DPCH and E-DCH processing is divided between a plurality of hardware processing blocks and a plurality of firmware (FW) processing blocks. The finger management strategies within the Rake receiver structure are implemented by the plurality of FW processing blocks. | 02-05-2009 |
20090046626 | METHOD AND DEVICE FOR REORDERING DATA IN WIRELESS COMMUNICATION SYSTEM - A method and a device for reordering data in a mobile communication system are disclosed. The method comprises: receiving correctly decoded transmission blocks and transmitting the blocks to a link control entity by a receiving-end MAC entity; decapsulating the transmission blocks and reordering and reassembling the resulting upper-layer PDUs by the receiving-end link control entity to obtain SDUs. The device includes: a first retransmitting unit which is adapted to transmit received transmission blocks to the second retransmitting unit; and a second retransmitting unit connected to the first retransmitting unit, which is adapted to receive and decapsulate the transmission blocks from the first retransmitting unit to obtain upper-layer PDUs, reorder and reassemble the PDUs to obtain SDUs, and transmit the SDUs to the upper layers. By reducing the number of data reorderings between protocol layers and simplifying data header information, the present invention reduces data transmission delay and data overhead. | 02-19-2009 |
20090109896 | SESSION ESTABLISHMENT IN MULTI-CARRIER DATA TRANSMISSION SYSTEMS - An access terminal acquires a multi-carrier radio network on an acquisition channel, receives a list of available channels from the network, and hashes to a channel on which the access terminal attempts to establish a session. If the access terminal fails to establish the session, the access terminal selects a new acquisition channel from an acquisition table other than the acquisition table from which the original acquisition channel was selected. The access terminal then repeats the above steps in order to attempt to establish a session, beginning with acquisition on the new acquisition channel. In this way, the number of unsuccessful session establishment attempts resulting from back end network failures is typically reduced, shortening the time to successful session establishment, reducing power consumption by the access terminal, and lessening interference due to unsuccessful attempts to establish a session. | 04-30-2009 |
20090316620 | REFERENCE OSCILLATOR MANAGEMENT FOR WIRELESS DEVICES HAVING POSITION DETERMINATION FUNCTIONALITY - A method and device for managing a reference oscillator within a wireless device is presented. The method includes selecting reference oscillator parameters associated with the lowest reference oscillator error, where the selection is based upon reference oscillator parameters derived using different technologies within a wireless device, acquiring a satellite based upon the selected reference parameters, determining the quality of the satellite-based position fix, and updating the reference oscillator parameters based upon the quality of the satellite-based position fix. The wireless device includes a wireless communications system, a satellite positioning system (SPS) receiver, a reference oscillator connected to the wireless communications system and SPS receiver, and a mobile controller connected to the reference oscillator, SPS, and wireless communications system, and a memory connected to the mobile controller, where the memory stores a reference oscillator parameter table and instructions causing the mobile controller to execute the aforementioned method. | 12-24-2009 |
20100046422 | OPERATION INDICATION METHOD, DEVICE AND SYSTEM - An operation indication method is provided, which includes the following steps. After receiving a trigger message, an application function (AF) entity determines an operation indication, in which the operation indication includes indicating a quality of service (QoS) resource reservation operation and/or a network address translation (NAT) control operation; the AF entity sends the operation indication to a service-based policy decision function (SPDF) entity; and the SPDF entity receives and identifies the operation indication and performs a corresponding operation according to the operation indication. | 02-25-2010 |
20100067433 | METHODS AND SYSTEMS FOR MULTI-MODE SIGNAL QUALITY REPORTING - Certain embodiments of the present disclosure provide a method for wireless communications by a multi-mode mobile station that supports communications with a plurality of radio access technologies (RATs). The RATs may include at least one short range RAT and at least one long range RAT. The method generally includes establishing a first connection with a first network via a short range RAT supported by the mobile station, taking signal quality measurements for one or more long range RAT supported by the mobile station, and transmitting the signal quality measurements via the first connection. | 03-18-2010 |
20100103867 | BASE STATION APPARATUS, USER EQUIPMENT, AND METHOD USED IN MOBILE COMMUNICATION SYSTEM - A base station apparatus for a mobile communication system is disclosed that includes a unit to receive an uplink reference signal transmitted from user equipment, a unit to provide transmission power control data indicating whether a transmission power value of the uplink reference signal to be transmitted later is to be changed, a unit to derive a first offset power value so that the uplink control signal is transmitted at a power value determined by adding the first offset power value to the transmission power value of the uplink reference signal, a unit to derive a second offset power value so that the uplink control signal is transmitted at a power value determined by adding the second offset power value to the transmission power value of the uplink reference signal, and a unit to report the data and values to the user equipment. | 04-29-2010 |
20100232351 | UTILIZING SBAS SIGNALS TO IMPROVE GNSS RECEIVER PERFORMANCE - The present invention provides methods of improving GNSS receivers' satellite signal acquisition and TIFF performances by taking advantage of SBAS signals. Due to a SBAS satellite's geostationary position and typically strong signal, the SBAS satellite signal can be acquired more quickly than a GPS satellite signal. Once a SBAS satellite signal is acquired the Doppler frequency search uncertainty may be reduced for remaining GNSS satellites which are to be acquired. Furthermore, a satellite search list may be optimized to search for satellites close to the line of sight (LOS) of the SBAS satellite for which a signal has been acquired, in receiver “warm” and “hot” start modes. Moreover, since a SBAS signal sub-frame is only one second long, which is shorter than six seconds for a GPS signal sub-frame, synchronization of the SBAS signal sub-frame may be achieved faster than for GPS signals. With aided time information, a receiver may compute the absolute time of week (TOW) from a sub-frame synchronized SBAS signal. Therefore, without necessarily waiting for TOW to be decoded from a GPS signal and with TOW extracted from a SBAS signal, a receiver can achieve better TTFF performance. | 09-16-2010 |
20110096719 | METHOD AND DEVICE OF ACQUIRING SATELLITE SIGNALS, CORRESPONDING COMPUTER PROGRAM PRODUCT - A correlator may correlate a satellite signal modulated with a pseudo-random binary sequence with a local binary sequence including a given number of samples. The correlation may be performed on a given input sequence of length 2N−1 with respect to versions of the local binary sequence of length N having different phases and defining a search space for the correlation results of the table, organized in a table, wherein the lines of the table may represent the versions of the local binary sequence with different phases. The correlator may be structured to perform the correlation operating on a number N of samples equal to a sub-multiple of the number of samples included in the local binary sequence, by exploring the table according to rhomboidal subsets by operating on subsequent lines with sliding windows having widths equal to N and according to a lexicographical order with a periodic return to a new line. | 04-28-2011 |
20110164554 | RETAINING TRAFFIC CHANNEL ASSIGNMENTS FOR SATELLITE TERMINALS TO PROVIDE LOWER LATENCY COMMUNICATION SERVICES - A traffic channel is assigned for use by a terminal to transmit data traffic to a satellite for relay to a satellite base station. The traffic channel assignment is retained for use by the terminal while the terminal is idle between data traffic transmissions to the satellite in response to a type of service designation that is associated with the terminal. | 07-07-2011 |
20120127922 | Satellite, Cellular and Wi-Fi Mobile Multimode Transmission and Reception Methods - A airplane based communication and position finding method for receiving in a transceiver a OFDM signal from a mobile unit in an airplane. Demodulating and processing an OFDM received signal into a processed OFDM signal and processing and modulating the processed OFDM signal into a processed modulated signal. Transmitting in the airplane based transceiver the modulated signal to a satellite receiver. Receiving in the airplane based transceiver a second modulated signal from a satellite transmitter, demodulating and processing the second modulated signal into a processed second OFDM signal and modulating and transmitting said processed second OFDM signal to mobile unit. Method for processing an input voice signal, in a mobile unit, into a processed cross-correlated CDMA signal, modulating and transmitting cross-correlated CDMA signal into a modulated transmitted CDMA signal, used in a cellular system. | 05-24-2012 |
20150078250 | COMMUNICATION SYSTEM, COMMUNICATION TERMINAL, COMMUNICATION METHOD, CHIP CLOCK GENERATION METHOD, AND ORTHOGONAL CODE GENERATION METHOD - When multiple communication terminals access a base station in CDMA in which transmission signals are spread with orthogonal codes, the orthogonal codes in CDMA signals transmitted from the communication terminals are synchronized on the communication path. The communication terminals each include an information acquirer acquiring reference time information common to the multiple communication terminals, a transmission time generator generating a chip clock on the basis of the time information, an orthogonal code generator generating orthogonal codes in time with the timing of the chip clock, a CDMA spreader spreading transmission signals with the orthogonal codes to generate code division multiple access signals, a carrier wave generator generating a carrier wave, and a BPSK modulator modulating the carrier wave generated by the carrier wave generator with the code division multiple access signals and transmitting the carrier wave. | 03-19-2015 |
20150351000 | SYSTEMS AND METHODS FOR FACILITATING WIRELESS NETWORK COMMUNICATION, SATELLITE-BASED WIRELESS NETWORK SYSTEMS, AND AIRCRAFT-BASED WIRELESS NETWORK SYSTEMS, AND RELATED METHODS - A wireless network system can include an earth-station server configured to provide a gateway to a secondary network. The wireless network system can also include a plurality of clients, wherein each client comprises a client controller configured to implement a client process. The client process of at least one of the clients can select a transmission path to the earth-station server that is an indirect link to the earth-station server through at least one of the other clients. At least one of the clients can be aircraft-based. | 12-03-2015 |
20150381267 | HYBRID SPACE SYSTEM BASED ON A CONSTELLATION OF LOW-ORBIT SATELLITES WORKING AS SPACE REPEATERS FOR IMPROVING THE TRANSMISSION AND RECEPTION OF GEOSTATIONARY SIGNALS - Satellite telecommunications system comprises a transmitting/receiving surface terminal associated with a user substantially on a surface of the Earth, a geostationary satellite configured to receive/transmit signals from/to a predefined coverage area with a line of sight to the geostationary satellite, and a traveling satellite moving above the surface of the Earth. The traveling satellite repeats signals received from the surface terminal towards the geostationary satellite and/or repeat signals received from the geostationary satellite towards the surface terminal. The same frequency band is used to communicate between the surface terminal and the traveling satellite and between the traveling satellite and the geostationary satellite. The tracking/telemetry and command signals of the traveling satellite are relayed by the geostationary satellite. | 12-31-2015 |