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公开(公告)号：EP1264420B1
公开(公告)日：2008-01-16
申请号：EP01914638.0
申请日：2001-03-02
IPC分类号： H04B7/005
CPC分类号： H04W52/286 , G01S11/10 , H04W52/146 , H04W52/282
摘要： 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 estimated velocity in order to specify a reverse-link transmit power level. The velocity estimation may be performed using a level crossing technique, a covariance approximation technique, or a Doppler spectrum estimation technique.
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2.发明授权TIME OFFSET TECHNIQUE FOR INCREASING THE CAPACITY OF A CDMA SYSTEM 有权ZEIT-OFFSET TECHNIK ZURKAPAZITÄTSERHÖHUNGEINER CDMA系统
公开(公告)号：EP1105976B1
公开(公告)日：2007-11-28
申请号：EP99941226.5
申请日：1999-08-17
CPC分类号： H04B1/707 , H04B1/7097 , H04B2201/70701 , H04B2201/70706 , H04B2201/70709 , H04W52/30
摘要： A method for limiting peak transmit power in a CDMA communication system by 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. A first and a second communication signal are time offset to prevent the first and second high transmit power regions from occurring simultaneously. Time shifting only a portion of the first and second communication signals is also taught. The first and second communication signals can also include respective first and second low transmit power regions. The time offset can be selected to align one of the first and second high transmit power regions with one of the first and second low transmit power regions. The total transmit power signal can be determined and the time offset can be selected to minimize a peak level of the total transmit power signal. The communication signals are separated into a plurality of portions and portions of the first and second communication signals are time offset to re-order the sequence of transmission of the plurality of portions.
摘要翻译： 一种通过发送具有第一高发射功率区域的第一通信信号并发送具有第二高发射功率区域的第二通信信号来限制CDMA通信系统中的峰值发射功率的方法。 第一和第二通信信号是时间偏移，以防止第一和第二高发射功率区域同时发生。 还教导了仅移动第一和第二通信信号的一部分的时移。 第一和第二通信信号还可以包括相应的第一和第二低发射功率区域。 可以选择时间偏移以将第一和第二高发射功率区域中的一个与第一和第二低发射功率区域中的一个对准。 可以确定总发射功率信号并且可以选择时间偏移以使总发射功率信号的峰值电平最小化。 通信信号被分成多个部分，并且第一和第二通信信号的部分被时间偏移以重新排列多个部分的传输顺序。
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3.发明授权METHOD AND APPARATUS FOR TRANSMITTING DATA TRAFFIC ON A WIRELESS COMMUNICATION CHANNEL 有权方法和装置用于发送数据流量放在一个无线通信信道
公开(公告)号：EP1354441B1
公开(公告)日：2006-05-24
申请号：EP01999071.2
申请日：2001-11-16
CPC分类号： H04L1/1819 , H04L1/0002 , H04L1/0009 , H04L1/1825 , H04L1/1845 , H04L1/1887 , H04W52/282
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4.发明公开METHOD AND APPARATUS FOR REDUCTION OF CONGESTION THROUGH DATA RATE ADJUSTMENT IN A WIRELESS COMMUNICATION SYSTEM 有权方法和设备，用于一个降低无线通信系统过载，通过调节数据速率
公开(公告)号：EP1393510A1
公开(公告)日：2004-03-03
申请号：EP02734737.6
申请日：2002-06-06
发明人： JAIN, Avinash , HOLTZMAN, Jack, M.
摘要： 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 (208, 218). 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 (204), 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 (210, 216).
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5.发明公开METHOD AND APPARATUS FOR SCHEDULING PACKET DATA TRANSMISSIONS IN A WIRELESS COMMUNICATION SYSTEM 审中-公开方法和设备规划分组数据传输的在无线通信系统
公开(公告)号：EP1378136A2
公开(公告)日：2004-01-07
申请号：EP02721743.9
申请日：2002-04-11
IPC分类号： H04Q7/22
CPC分类号： H04L47/14 , H04L47/2433 , H04L47/522 , H04L47/626 , H04L2012/5681 , H04W28/22 , H04W72/1236 , H04W72/1247
摘要： 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 Quality of Service (QOS) requirements. In one embodiment, the rate request indicator is a Data Rate Request (DRR). In another embodiment, the rate request indicator is Carrier-to-interference (C/1) information. In the exemplary embodiment, the base station calculates a Priority Function (PF) for the multiple mobile users. Each PF is a function of the rate request indicator and the projected throughput of a given mobile user. In one embodiment, the predicted throughput is calculated by T'= (T')α.
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6.发明公开METHOD AND APPARATUS FOR CONTROLLING TRANSMISSION POWER IN A CDMA COMMUNICATION SYSTEM 有权方法和设备的发送功率控制结合触摸码分多址的通信系统
公开(公告)号：EP1147622A2
公开(公告)日：2001-10-24
申请号：EP00913286.1
申请日：2000-01-28
发明人： HOLTZMAN, Jack, M. , CHEN, Tao , RAZOUMOV, Leonid
IPC分类号： H04B7/005
CPC分类号： H04W52/267 , H04W52/60
摘要： The present invention is a novel and improved method and apparatus for controlling the transmission power in a closed loop power control system. In the present invention, the power control commands that are punctured into the forward link traffic signal are used to determine the sufficiency of the forward link traffic signal. The power control commands are used because their energy does not vary with the data rate of the traffic channel. The drawback of using the power control commands alone to determine the sufficiency of the traffic channel transmission energy is that there are not a lot of power control commands and thus they are susceptible to the influence of noise on the traffic channel. This situation is further complicated because the power control commands cannot simply be averaged together because they may have been transmitted at different energy due to the response to power control commands from the mobile station. This situation is even further complicated because power control commands transmitted from the mobile station may be received incorrectly by the base station. The present invention provides methods of averaging the power control bit energies to provide an effective and robust means of estimation signal quality of a received CDMA signal.
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7.发明公开METHOD AND APPARATUS FOR REDUCING PEAK-TO-AVERAGE RATIO IN A CDMA COMMUNICATION SYSTEM 有权方法和装置用于减少MIDDLE性能的最大值在CDMA通信安排
公开(公告)号：EP1147618A2
公开(公告)日：2001-10-24
申请号：EP00908418.7
申请日：2000-01-28
CPC分类号： H04B1/707 , H04B2201/70706
摘要： 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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8.发明授权FORWARD-LINK SCHEDULING IN A WIRELESS COMMUNICATION SYSTEM DURING SOFT AND SOFTER HANDOFF 有权前向链路分配在无线通信系统而温柔的温和切换
公开(公告)号：EP1368907B1
公开(公告)日：2010-09-08
申请号：EP02704443.7
申请日：2002-02-22
发明人： HOLTZMAN, Jack, M. , BAO, Gang
IPC分类号： H04W52/04
CPC分类号： H04W52/223 , H04W36/18 , H04W52/221 , H04W52/225 , H04W52/26 , H04W52/34 , H04W52/40
摘要： 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 transmission rate for transmitting the non-voice data on a supplemental channel. The slot 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 algorithm applies to softer handoff using information from all the sectors of a base station involved in the softer handoff. During soft handoff, instead of scheduling forward link transmission based on recent power and rate, or C/I information, data is continuously transmitted to the user at a power level based on average required power.
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9.发明授权
公开(公告)号：EP1374442B1
公开(公告)日：2008-08-13
申请号：EP02757874.9
申请日：2002-03-28
发明人： SARKAR, Sandip , HOLTZMAN, Jack, M.
IPC分类号： H04B7/005
CPC分类号： H04W52/12 , H04L1/1867 , H04W52/20 , H04W52/286 , H04W52/48
摘要： Method and apparatus for power control in a packet-data switched communicaiton system by (30) adapting a transmission energy setpoint to transmission quality (104) and adjusted the retransmission energy setpoint accordingly (150)(110). In one embodiment, the retransmission energy setpoint is adjusted as a function of retransmission quality (164, 166, 168, 170).
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10.发明授权METHOD AND APPARATUS FOR REDUCING PEAK-TO-AVERAGE RATIO IN A CDMA COMMUNICATION SYSTEM 有权方法和装置用于减少MIDDLE性能的最大值在CDMA通信安排
公开(公告)号：EP1147618B1
公开(公告)日：2007-10-03
申请号：EP00908418.7
申请日：2000-01-28
CPC分类号： H04B1/707 , H04B2201/70706
摘要： 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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