| Patent Number |
Title Of Patent |
Date Issued |
| 7428421 |
Method and apparatus for congestion control in a wireless communication system |
September 23, 2008 |
| Method and apparatus for congestion control in a wireless communication system. In one embodiment, the status of a congestion bit indicates the type of adjustment, such as increase or decrease, to be performed at an access terminal to determine the next data rate for transmissions on the |
| 7346018 |
Margin control in a data communication system |
March 18, 2008 |
| Techniques for improved margin control in a data communication system are disclosed. In one aspect, margin is adjusted in response to a first subpacket error rate. In another aspect, margin is further adjusted in response to an overall packet error rate. In yet another aspect, the fi |
| 7251225 |
Signal splitting method for limiting peak power in a CDMA system |
July 31, 2007 |
| The invention is a method for limiting the peak transmit power in a CDMA communication system. At least one of first and second high transmit power regions are separated into a plurality of high transmit power subregions. The high transmit power subregions of the plurality of high su |
| 7233591 |
Method and apparatus for controlling transmission power in a CDMA communication system |
June 19, 2007 |
| Method and apparatus for controlling transmission power in a closed loop power control system, wherein power control commands are based on the energy of the previous power control commands. In one embodiment, the method compares changes in the received energy of received power control |
| 7209712 |
Mean square estimation of channel quality measure |
April 24, 2007 |
| Methods and apparatus for improving the feedback of channel information to a serving base station, which provides accuracy and reliability of such information. The process determines the received link quality indicators using historical information of the previously received indicators. |
| 7170876 |
Outer-loop scheduling design for communication systems with channel quality feedback mechanisms |
January 30, 2007 |
| Methods and apparatus are presented for dynamically adjusting parameters of an outer-loop algorithm, which is used to determine the feasibility of a transmission format. The parameters of the outer-loop algorithm are adjusted according to channel conditions. In one embodiment, an era |
| 7123922 |
Transmitter directed code division multiple access system using path diversity to equitably maxi |
October 17, 2006 |
| A transmitter directed, distributed receiver using path diversity provided by the distribution of the receiver. Advantage is taken of the uncorrelated variations over time in the condition of channels between a common transmitter and several users. The greater the variation in the ch |
| 7082109 |
Signal splitting method for limiting peak power in a CDMA system |
July 25, 2006 |
| The invention is a method for limiting the peak transmit power in a CDMA communication system. At least one of first and second high transmit power regions are separated into a plurality of high transmit power subregions. The high transmit power subregions of the plurality of high su |
| 7042856 |
Method and apparatus for controlling uplink transmissions of a wireless communication system |
May 9, 2006 |
| Techniques to partition and allocate the available system resources among cells in a communication system, and to allocate the resources in each cell to terminals for data transmission on the uplink. In one aspect, adaptive reuse schemes are provided wherein the available system reso |
| 6999430 |
Method and apparatus for transmitting data traffic on a wireless communication channel |
February 14, 2006 |
| Methods and apparatus are presented for scheduling data packet transmissions during optimal channel conditions. In one method, data packet retransmissions are scheduled for transmission during favorable channel conditions when the target remote station is moving slowly, but are sched |
| 6983153 |
Method and apparatus for congestion control in a wireless communication system |
January 3, 2006 |
| Method and apparatus for congestion control in a wireless communication system. In one embodiment, the status of a congestion bit indicates the type of adjustment, such as increase or decrease, to be performed at an access terminal to determine the next data rate for transmissions on the |
| 6965589 |
Time offset technique for increasing the capacity of a CDMA system |
November 15, 2005 |
| The invention is a method for limiting the peak transmit power in a CDMA communication system including the steps transmitting a first communication signal having a first high transmit power region and transmitting a second communication signal having a second high transmit power reg |
| 6950406 |
Method and apparatus for controlling transmission power in a potentially transmission gated or c |
September 27, 2005 |
| A power control system for controlling the transmission power in a system wherein the transmission power may be gated or capped. The receiver employs a combination of closed loop and outer loop power control. The outer loop is frozen upon detection by the receiver that the signal has |
| 6847629 |
Method and apparatus for scheduling packet data transmissions in a wireless communication system |
January 25, 2005 |
| A method (18) for scheduling packet data transmissions in a wireless communication system wherein a per-user Priority Function (PF) (24) is based on a channel condition indicated by a Rate Request Indicator (RRI). The method also considers fairness criteria dictated by predetermined |
| 6810255 |
Method and apparatus for controlling transmission power while in soft handoff |
October 26, 2004 |
| Method and apparatus for adjusting the transmission power of base stations in simultaneous communication with a mobile station. The methods described provide for the transmission power of the base stations to be aligned. In the first exemplary embodiment, the transmitters are attached to |
| 6788685 |
Method and apparatus for controlling transmission power in a CDMA communication system |
September 7, 2004 |
| Method and apparatus for controlling transmission power in a closed loop power control system, wherein power control commands are based on the energy of the previous power control commands. In one embodiment, the method compares changes in the received energy of received power control |
| 6763244 |
Method and apparatus for adjusting power control setpoint in a wireless communication system |
July 13, 2004 |
| Techniques to adjust the setpoint of a power control loop in a wireless communication system. The setpoint may be adjusted based on frame status indicative of erased/good decoded frames, one or more (typically soft) metrics indicative of the confidence in the decoded results, power s |
| 6760587 |
Forward-link scheduling in a wireless communication system during soft and softer handoff |
July 6, 2004 |
| A method and apparatus for scheduling transmit rates and power levels for data in conjunction with a voice-data communication during conditions of soft and softer handoff. During conditions of no handoff, or hard handoff, an algorithm selects a slot reflecting a favored power level and |
| 6721349 |
Method and apparatus for reducing peak-to-average ratio in a CDMA communication system |
April 13, 2004 |
| The present invention is a novel and improved method and apparatus for reducing peak to average ratio in a system using auxiliary pilot channels as described in the TIA/EIA TR45.5 "cdma2000 ITU-R RTT Candidate Submission" to the ITU for consideration in the third generation wireless |
| 6711208 |
Estimation of traffic-to-pilot ratios |
March 23, 2004 |
| A method for coherent estimation of the traffic-to-pilot energy ratio is presented. A received preamble is decoded, and then re-encoded. The received preamble is then multiplied by the re-encoded preamble. The results are summed, squared, and then divided by a pilot energy value. In |
| 6657980 |
Method and apparatus for scheduling packet data transmissions in a wireless communication system |
December 2, 2003 |
| A method (18) for scheduling packet data transmissions in a wireless communication system wherein a per-user Priority Function (PF) (24) is based on a channel condition indicated by a Rate Request Indicator (RRI). The method also considers fairness criteria dictated by predetermined |
| 6564042 |
Velocity-estimation-based gain tables |
May 13, 2003 |
| A method of modifying gain tables for the reverse-link communications in a cdma2000 wireless communication network includes the steps of estimating the velocity of a mobile station for a given frame error rate (FER) and data rate, and providing three gains to choose between based on the |
| 6512925 |
Method and apparatus for controlling transmission power while in soft handoff |
January 28, 2003 |
| Method and apparatus for adjusting the transmission power of base stations in simultaneous communication with a mobile station. The methods described provide for the transmission power of the base stations to be aligned. In the first exemplary embodiment, the transmitters are attached to |
| 6449490 |
Transmitter directed code division multiple access system using path diversity to equitably maxi |
September 10, 2002 |
| A transmitter directed, distributed receiver using path diversity provided by the distribution of the receiver. Advantage is taken of the uncorrelated variations over time in the condition of channels between a common transmitter and several users. The greater the variation in the ch |
| 6396817 |
Signal splitting method for limiting peak power in a CDMA system |
May 28, 2002 |
| The invention is a method for limiting the peak transmit power in a CDMA communication system. At least one of first and second high transmit power regions are separated into a plurality of high transmit power subregions. The high transmit power subregions of the plurality of high subreg |
| 6393257 |
Wireless communications receiver and decoder for receiving encoded transmissions, such as transm |
May 21, 2002 |
| A method and corresponding apparatus separately estimates signal amplitude and noise in received signals, particularly symbols encoded using turbo codes. The method and apparatus, however, may be applied to such estimation in power control wireless systems (CDMA systems), other conca |
| 6393010 |
Time offset technique for increasing the capacity of a CDMA system |
May 21, 2002 |
| A method for limiting the peak transmit power in a CDMA communication system including the steps transmitting a first communication signal having a first high transmit power region and transmitting a second communication signal having a second high transmit power region. One of the f |
| 6373823 |
Method and apparatus for controlling transmission power in a potentially transmission gated or c |
April 16, 2002 |
| A power control system for controlling the transmission power in a system wherein the transmission power may be gated or capped. The receiver employs a combination of closed loop and outer loop power control. The outer loop is frozen upon detection by the receiver that the signal has |
| 5974329 |
Method and system for mobile location estimation |
October 26, 1999 |
| The present invention relates to a method and system for mobile location estimation in which range measurements between the mobile station and a base station are discriminated as being either from a base station which is line of sight with the mobile station or a base station that is |
| 4912706 |
Frame synchronization in a network of time multiplexed optical space switches |
March 27, 1990 |
| In an optical switching network, a master optical space switch is interconnected with remote slave equipment for switching block-multiplexed messages among the remote equipment. The master optical space switch responds to a frequency reference clock and steps through a sequence of st |
