| Patent Number |
Title Of Patent |
Date Issued |
| 7437654 |
Sub-packet adaptation in a wireless communication system |
October 14, 2008 |
| Disclosed is a method of sub-packet adaptation based on data rate. Specifically, the size of a sub-packet is adapted to a data rate at which the sub-packet is to be transmitted. In one embodiment, the sub-packet is size adapted to the data rate in a format that would allow such size |
| 7221648 |
Rate adaptation in a wireless communication system |
May 22, 2007 |
| Disclosed is a method of data rate adaptation based on channel conditions. Data is initially transmitted at a first data rate based on a measured first channel condition and subsequently re-transmitted at a second data rate based on a measured second channel condition, wherein the first |
| 7206280 |
Method and apparatus for asynchronous incremental redundancy reception in a communication system |
April 17, 2007 |
| An ARQ method using Incremental Redundancy that can be used in either synchronous or asynchronous communication systems. Information received by receiving equipment contains a one-bit NEW/CONTINUE flag indicating whether the received information is the beginning of new information or |
| 7068619 |
Radio link control with limited retransmissions for streaming services |
June 27, 2006 |
| In a mobile station-mobile receiver arrangement a method and apparatus for a radio link control (RLC) protocol that allows partial recovery of data for streaming services. The maximum number of retransmissions allowed by the method for each RLC block is a function of the maximum delivery |
| 7020185 |
Method and apparatus for determining channel conditions in a communication system |
March 28, 2006 |
| One example of symbol or bit error probability estimation in a communication system using soft decision information determines soft decision metric(s) for each symbol that is received over a communication channel and employs the soft decision metric(s) to obtain an estimate of symbol |
| 7006477 |
Method for interleaving of half rate channels suitable for half duplex operation and statistical |
February 28, 2006 |
| A system and method for providing wireless time division multiplexed communications in which time is divided into a plurality of frames and each frame is divided into N data bursts, which has a first multiplexer defining a channel as a series of bursts that occur periodically every N |
| 6996083 |
Burst based access and assignment method for providing real-time services |
February 7, 2006 |
| A method and system for reducing delay in wireless communications by use of a burst based access and assignment system. The method for setting up a communication channel uses short burst(s) (essentially a slot of a time frame). Time is saved by keeping the uplink and downlink channels |
| 6990104 |
Methods and devices for scheduling transmissions in interference-limited networks |
January 24, 2006 |
| Uplinked and downlinked transmissions in an interference-limited system, such as a cellular network, are prioritized and authorized by channel quality/data rate to minimize interference. |
| 6963544 |
System for statistically multiplexing real-time and non-real-time voice and data traffic in a wi |
November 8, 2005 |
| A system for providing statistical multiplexing of speech, other real-time data services and non-real-time data services for point to point and point to multipoint communications. The system has fast access and assignment procedures that allow the multiplexing of real-time, delay-critica |
| 6930981 |
Method for data rate selection in a wireless communication system |
August 16, 2005 |
| Data rate determination is provided in a system where the available power fraction and available Walsh codes in each active leg are dynamically changing over time. This method adapts the rate (modulation and coding) based on the combined resource (power & code space) levels seen at each |
| 6895057 |
System and method for wireless communication supporting link adaptation and incremental redundan |
May 17, 2005 |
| A system and method is provided for communicating in a wireless communication system which supports link adaptation or link adaptation and incremental redundancy. The invention provides link adaptation at multiple code rate by dividing fixed length RLC blocks into coded sub-blocks. CRC |
| 6856625 |
Apparatus and method of interleaving data to reduce error rate |
February 15, 2005 |
| A method and apparatus for reducing the information error rate of a communication network. The apparatus comprises a selector device coupled to a Framer and to an Interleaver. The selector device is configured to receive system information and the Framer is configured to receive user |
| 6813252 |
Method and system for interleaving of full rate channels suitable for half duplex operation and |
November 2, 2004 |
| A time division multiplexed communications method and system in which time is divided into a number of frames and each frame is divided into N data bursts. The method and system further has a first multiplexer by which a half rate channel is formed as a series of bursts that occur period |
| 6782261 |
Wireless handoff management method and device |
August 24, 2004 |
| In a wireless communication system, in which a mobile station is operable to monitor the signal strengths of a plurality of pilot signals transmitted from a plurality of base stations, a method and device by which the mobile station determines the membership of Active Set pilots by g |
| 6757270 |
Low back haul reactivation delay for high-speed packet data services in CDMA systems |
June 29, 2004 |
| A back haul architecture effectively reduces the reactivation times for both forward-link and reverse-link data transmissions over CDMA wireless communications systems, by relying on packet-mode transmissions over the back haul between a frame selection/distribution (FSD) function and th |
| 6654422 |
Efficient automatic repeat request method using variable length sequence numbers |
November 25, 2003 |
| A variable length sequence number is used to identify data units in a communication channel. The sequence number associated with the most recent data that has been received successfully and the sequence number expected with the next new data message to be received are examined to determi |
| 6571104 |
Power control with effective Eb/N0 |
May 27, 2003 |
| A method and apparatus to quickly adjust a targeted E.sub.b /N.sub.0 in a wireless communication system by using an effective E.sub.b /N.sub.0 for each frame. The E.sub.b /N.sub.0 distribution of a frame produces a certain frame error rate. Effective E.sub.b /N.sub.0 is the E.sub.b / |
| 6567375 |
Method and apparatus for packet size dependent link adaptation for wireless packet |
May 20, 2003 |
| Unlike earlier methods and systems in which Radio Link Control (RLC) performance was characterized in terms of the throughput, and the size of the higher layer Protocol Data Units (PDUs) or packets to be transferred was ignored, a method and apparatus is provided that is based on the del |
| 6557135 |
Cycling through entirety of error-indicating acknowledgment information |
April 29, 2003 |
| A system includes a generator component that determines a plurality of portions that comprise an entirety of error-indicating acknowledgement information. The system includes a generator component that cycles through the plurality of portions that comprise the entirety of the error-i |
| 6507572 |
Primary transfer for simplex mode forward-link high-speed packet data services in CDMA systems |
January 14, 2003 |
| A back haul architecture enables efficient primary transfer (i.e., transfer of the designation of primary base station from one base station to another). A frame selection/distribution (FSD) function queues packets of forward-link data--to which sequence numbers have been assigned--for |
| 6330288 |
Coding/modulation scheme selection technique |
December 11, 2001 |
| In a wireless data network, such as a General Packet Radio Service (GPRS) network, a transmitter uses one of k coding/modulation schemes for transmitting data. The transmitter initially selects a coding/modulation scheme, C, as a function of carrier-to-interference ratio (C/I) measur |
