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公开(公告)号：HK1040014A1
公开(公告)日：2002-05-17
申请号：HK02101229
申请日：2002-02-20
Applicant: QUALCOMM INC
Inventor： HOLTZMAN JACK , TERASAWA DAISUKE , RAZOUMOV LEONID
IPC: H04B1/707 , H04B1/7103 , H04B7/005 , H04B7/26 , H04J11/00 , H04J13/00 , H04J13/12 , H04L25/03 , H04L27/26 , H04W52/04 , H04B , H04J
Abstract: The invention provides a method and apparatus for reducing transmission signal power or interference of transmitted communication signals suitable for use in a communication system having a base station and a plurality of user stations that exchange communication signals with the base station. An input node receives channel data for transmission on a plurality of channels to the plurality of user stations, wherein the channel data includes pilot symbol data. A processor determines symbol positions in which each of the plurality of user stations expect to find pilot symbols. A transmitter transmits to the plurality of user stations pilot symbols only in symbol positions that the plurality of user stations expect to find pilot symbols, and failing to transmit pilot symbols in other symbol positions.
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公开(公告)号：HK1039538A1
公开(公告)日：2002-04-26
申请号：HK02101278
申请日：2002-02-21
Applicant: QUALCOMM INC
Inventor： REZAIIFAR RAMIN , HOLTZMAN JACK
Abstract: A method for allocating resources in a communication system having a plurality of base stations each serving multiple user stations, the method comprising: receiving, at a first base station, service requests from a plurality of user stations; dynamically allocating resources at the first base station including assigning a transmission rate for transmission of information between the first base station and each user station independently of allocation of resources by other base stations, based on a set of criteria including a set of requirements associated with each service request and interference generated by other base stations in the communication system, wherein the transmission rate assigned to each user station is determined to optimize a sum of all transmission rates assigned by the first base station to the plurality of user stations based on the set of requirements associated with each service request and wherein higher transmission rates are assigned to user stations which are relatively closer to the first base station; and transmitting rate assignment information from the first base station to the plurality of user stations.
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公开(公告)号：AU7755000A
公开(公告)日：2001-05-10
申请号：AU7755000
申请日：2000-10-07
Applicant: QUALCOMM INC
Inventor： HOLTZMAN JACK , CHEN TAO
Abstract: A method and apparatus for selecting a favored transmission slot for communicating non-voice data in conjunction with a voice-data communication. The slot, reflecting a favored power level and transmission rate for transmitting the non-voice data on a supplemental channel, is selected based upon the transmission power levels for voice-data transmitted by a base station to a remote station on a fundamental channel. The favored transmission slot is selected without the remote station messaging information to the base station concerning frequency channel or interference information for the supplemental channel.
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公开(公告)号：AU7755100A
公开(公告)日：2001-04-23
申请号：AU7755100
申请日：2000-10-07
Applicant: QUALCOMM INC
Inventor： RAZOUMOV LEONID , HOLTZMAN JACK , LUNDBY STEIN A
Abstract: Method and apparatus for transmitting a signal at a predetermined level of reliability using retransmission of erroneously transmitted frames so as to minimize total transmission energy. The transmitting station evaluates the frame error rate (FER) as a function of energy. Next, the transmitting station determines a combination of initial transmission energies and retransmission energies that will provide the target level of reliability while minimizing the total transmission energy employed in the initial transmission and the retransmissions. The transmitting station transmits a frame with an initial transmission energy. Employing conventional feedback methods the transmitting station is alerted to the occurrence of frame errors at the receiving station. The transmitting station upon notification of a frame error retransmits the frame with an energy determined to minimize the total energy required to transmit the frame with a predetermined level of reliability.
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公开(公告)号：AU6036799A
公开(公告)日：2000-03-27
申请号：AU6036799
申请日：1999-09-10
Applicant: QUALCOMM INC
Inventor： REZAIIFAR RAMIN , HOLTZMAN JACK
Abstract: A method for allocating resources in a communication system having a plurality of base stations each serving multiple user stations, the method comprising: receiving, at a first base station, service requests from a plurality of user stations; dynamically allocating resources at the first base station including assigning a transmission rate for transmission of information between the first base station and each user station independently of allocation of resources by other base stations, based on a set of criteria including a set of requirements associated with each service request and interference generated by other base stations in the communication system, wherein the transmission rate assigned to each user station is determined to optimize a sum of all transmission rates assigned by the first base station to the plurality of user stations based on the set of requirements associated with each service request and wherein higher transmission rates are assigned to user stations which are relatively closer to the first base station; and transmitting rate assignment information from the first base station to the plurality of user stations.
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Patent Agency Ranking
公开(公告)号：CA2387537C
公开(公告)日：2011-01-18
申请号：CA2387537
申请日：2000-10-07
Applicant: QUALCOMM INC
Inventor： HOLTZMAN JACK , CHEN TAO
Abstract: A method and apparatus for selecting a favored transmission slot for communicating non-voice data in conjunction with a voice-data communication. The slot, reflecting a favored power level and transmission rate for transmitting the non-voice data on a supplemental channel, is selected based upon the transmission power levels for voice-data transmitted by a base station to a remote station on a fundamental channel. The favored transmission slot is selected without the remote station messaging information to the base station concerning frequency channel or interference information for the supplemental channel.
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公开(公告)号：AT412292T
公开(公告)日：2008-11-15
申请号：AT02734737
申请日：2002-06-06
Applicant: QUALCOMM INC
Inventor： JAIN AVINASH , HOLTZMAN JACK
Abstract: Method and apparatus for congestion control in a wireless communication system. Individual target data rate values are assigned individual access terminals. The individual data rates of the access terminals are adjusted to achieve the corresponding individual target data rate values. If the target values are not achieved within a predetermined number of iterations, the individual data rate is adjusted. In one embodiment, the status of a congestion bit indicates the type of adjustment, such as increase or decrease, wherein the status of the congestion bit is determined by comparing a congestion parameter to a predetermined threshold. One embodiment implements an outerloop threshold having a margin with respect to the desired congestion metric threshold. According to one embodiment, a congestion indicator includes multiple bits, wherein at least one bit instructs the mobile station to use target values or else to adjust without regard to a target value.
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公开(公告)号：AT403281T
公开(公告)日：2008-08-15
申请号：AT00913286
申请日：2000-01-28
Applicant: QUALCOMM INC
Inventor： HOLTZMAN JACK , CHEN TAO , RAZOUMOV LEONID
Abstract: 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 commands against expected changes in those commands based on previously transmitted power control commands, and identifies suspicious responses to said previously transmitted power control commands. Hypothesis testing of the received power control commands is performed accordance any identified suspicious responses.
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公开(公告)号：DE60132074D1
公开(公告)日：2008-02-07
申请号：DE60132074
申请日：2001-03-15
Applicant: QUALCOMM INC
Inventor： HOLTZMAN JACK , BAO GANG
Abstract: A method and apparatus for selecting a favored transmission slot for communicating non-voice data in conjunction with a voice-data communication. The slot, reflecting a favored power level and transmission rate for transmitting the non-voice data on a supplemental channel, is selected based upon the transmission power levels for voice-data transmitted by a base station to a remote station on a fundamental channel. The favored transmission slot is selected without the remote station messaging information to the base station concerning frequency channel or interference information for the supplemental channel. A method of performing forward-link scheduling in a wireless communication system includes determining the available base station power at the beginning of a frame, predicting the required transmit power at the beginning of the frame for each supplemental channel, determining rates sustainable with the predicted transmit power, dividing by throughput over a recent window to obtain a supplemental channel priority index, and allowing the supplemental channel with the highest priority index to transmit over the next frame.
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公开(公告)号：AT375031T
公开(公告)日：2007-10-15
申请号：AT00908418
申请日：2000-01-28
Applicant: QUALCOMM INC
Inventor： WILLENEGGER SERGE , HOLTZMAN JACK , SHANBHAG ABHIJIT
Abstract: 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 communication systems. A first method proposed in the present invention to deal with the above stated problem is to alter the phase of the auxiliary pilot channels to reduce to prevent the auxiliary pilot channels from adding constructively. A second method proposed in the present invention to deal with the above stated problem is to gate out the portion of the auxiliary pilot channels that add constructively. The present invention also proposes a novel demodulator design for receiving signals using the modified auxiliary pilot signals.
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