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1. 发明授权

US06996127B2 Method and apparatus for distributed optimal reverse link scheduling of resources, such as rate and power, in a wireless communication system 有权
公开(公告)号：US06996127B2
公开(公告)日：2006-02-07
申请号：US10447330
申请日：2003-05-28
申请人： Ramin Rezaiifar , Jack Holtzman
发明人： Ramin Rezaiifar , Jack Holtzman
IPC分类号： H04J3/16 , H04J3/26 , H04L12/28 , H04B7/185 , H04B17/02
CPC分类号： H04W52/265 , H04W28/18 , H04W52/24 , H04W52/267 , H04W52/343 , H04W52/346
摘要： A method, and corresponding apparatus, applies to individual base stations in a wireless communications systems, where each base station performs rate assignment to mobile stations optimally, but independently of the other base stations. Different base stations affect each other through other cell interference, and continuously modify their reversed link rate assignment based on the other-cell interference received and the requested rates from the mobile stations. The base stations converge to a stable condition with uncoordinated optimizations. The optimizing technique maximizes total through put in each cell (maximizing rates) while maintaining interference to other cells at a minimum level, and being subject to at least some of the following constraints: mobile station's maximum transmit power, mobile station's requested rate, discrete set of possible rates, maximum rise-over-thermal interference at the base station, and minimum required received error per bit normalized for noise.

2. 发明授权

US06597705B1 Method and apparatus for distributed optimal reverse link scheduling of resources, such as a rate and power in a wireless communication system 有权
标题翻译：用于无线通信系统中的资源的分布式最优反向链路调度的方法和装置，例如速率和功率
公开(公告)号：US06597705B1
公开(公告)日：2003-07-22
申请号：US09151391
申请日：1998-09-10
申请人： Ramin Rezaiifar , Jack Holtzman
发明人： Ramin Rezaiifar , Jack Holtzman
IPC分类号： H04B7185
CPC分类号： H04W52/265 , H04W28/18 , H04W52/24 , H04W52/267 , H04W52/343 , H04W52/346
摘要： A method, and corresponding apparatus, applies to individual base stations in a wireless communications systems, where each base station performs rate assignment to mobile stations optimally, but independently of the other base stations. Different base stations affect each other through other cell interference, and continuously modify their reversed link rate assignment based on the other—cell interference received and the requested rates from the mobile stations. The base stations converge to a stable condition with uncoordinated optimizations. The optimizing technique maximizes total through put in each cell (maximizing rates) while maintaining interference to other cells at a minimum level, and being subject to at least some of the following constraints: mobile station's maximum transmit power, mobile station's requested rate, discrete set of possible rates, maximum rise—over—thermal interference at the base station, and minimum required received error per bit normalized for noise.
摘要翻译：一种方法和相应的装置适用于无线通信系统中的各个基站，其中每个基站最优地对移动站进行速率分配，但是与其他基站无关。不同的基站通过其他小区干扰相互影响，并根据接收的其他小区干扰和来自移动台的请求速率，不断修改其反向链路速率分配。基站收敛于稳定状态，并且具有不协调的优化。优化技术通过放置在每个小区中来最大化总计（最大化速率），同时在最小水平上保持对其他小区的干扰，并且受到以下至少一些约束：移动台的最大发射功率，移动台的请求速率，离散集合可能的速率，基站的最大上升热干扰以及针对噪声归一化的每位最小所需接收误差。

3. 发明申请

US20060262750A1 Method and apparatus for controlling uplink transmissions of a wireless communication system 审中-公开
公开(公告)号：US20060262750A1
公开(公告)日：2006-11-23
申请号：US11417946
申请日：2006-05-03
申请人： Jay Walton , Mark Wallace , Jack Holtzman , Franklin Antonio
发明人： Jay Walton , Mark Wallace , Jack Holtzman , Franklin Antonio
IPC分类号： H04Q7/00
CPC分类号： H04W52/343 , H04W16/04 , H04W72/06
摘要： 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 resources may be dynamically and/or adaptively partitioned and allocated to the cells based on a number of factors such as the observed interference levels, loading conditions, system requirements, and so on. A reuse plan is initially defined and may be redefined to reflect changes in the system. In another aspect, the system resources may be partitioned such that each cell is allocated a set of channels having different performance levels. In yet another aspect, terminals in each cell are scheduled for data transmission (e.g., based on their priority or load requirements) and assigned channels based on their tolerance to interference and the channels' performance.

4. 发明申请

US20050063332A1 Forward-link scheduling in a wireless communication system 失效
公开(公告)号：US20050063332A1
公开(公告)日：2005-03-24
申请号：US10972199
申请日：2004-10-22
申请人： Jack Holtzman , Gang Bao
发明人： Jack Holtzman , Gang Bao
IPC分类号： H04J13/00 , H04B7/005 , H04B7/26 , H04L1/00 , H04L12/28 , H04W52/16 , H04W52/22 , H04W52/26 , H04W52/50 , H04W72/12 , H04Q7/00
CPC分类号： H04W72/1226 , H04L1/0002 , H04L1/0015 , H04L1/0046 , H04W52/16 , H04W52/223 , H04W52/26 , H04W52/50 , H04W72/1242
摘要： 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.

5. 发明授权

US06493331B1 Method and apparatus for controlling transmissions of a communications systems 有权
标题翻译：用于控制通信系统的传输的方法和装置
公开(公告)号：US06493331B1
公开(公告)日：2002-12-10
申请号：US09539157
申请日：2000-03-30
申请人： Jay R. Walton , Mark Wallace , Jack Holtzman , Franklin P. Antonio
发明人： Jay R. Walton , Mark Wallace , Jack Holtzman , Franklin P. Antonio
IPC分类号： H04Q728
CPC分类号： H04W52/343 , H04B17/336 , H04B17/382 , H04W52/24 , H04W52/241 , H04W52/244 , H04W52/267 , H04W52/286 , H04W52/346 , H04W72/1231 , H04W72/1242 , H04W72/1252
摘要： In some aspects, each cell in the communications system can be designed to operate in accordance with a set of back-off factors that identify the reductions in peak transmit power levels for the channels associated with the back-off factors. The back-off factors are defined to provide the required power to a large percentage of the users while reducing the amount of interference. In some other aspects, the cells operate using an adaptive reuse scheme that allows the cells to efficiently allocate and reallocate the system resources to reflect changes in the system. A reuse scheme is initially defined and resources are allocated to the cells. During operation, changes in the operating conditions of the system are detected and the reuse scheme is redefined as necessary based on the detected changes. For example, the loading conditions of the cells can be detected, and the resources can be reallocated and/or the reuse scheme can be redefined. In yet other aspects, techniques are provided to efficiency schedule data transmissions and to assign channels to users. Data transmissions can be scheduled based on user priorities, some fairness criteria, system requirements, and other factors. Users are assigned to available channels based on a number of channel assignment schemes. Channel metrics are also provided, which can be used to prioritize users and for channel assignments.
摘要翻译：在一些方面，通信系统中的每个小区可以被设计为根据一组回退因子进行操作，所述回退因子识别与所述回退因素相关联的信道的峰值发射功率水平的降低。限制因素被定义为为大量用户提供所需的功率，同时减少干扰量。在一些其他方面，小区使用允许小区有效地分配和重新分配系统资源以反映系统中的变化的自适应重用方案来操作。最初定义了重用方案，并将资源分配给小区。在操作期间，检测到系统的操作条件的变化，并且根据检测到的改变根据需要重新定义重新使用方案。例如，可以检测小区的负载条件，并且可以重新分配资源和/或重新定义重用方案。在另外的方面，提供了技术来提高调度数据传输并向用户分配信道。数据传输可以根据用户优先级，一些公平标准，系统要求和其他因素进行调度。基于多个信道分配方案将用户分配给可用信道。还提供频道指标，可用于对用户和频道分配进行优先级排序。

6. 发明申请

US20050124369A1 Overload detection in a wireless communication system 有权
标题翻译：无线通信系统中的过载检测
公开(公告)号：US20050124369A1
公开(公告)日：2005-06-09
申请号：US10728035
申请日：2003-12-03
申请人： Rashid Attar , Bibhu Mohanty , Jack Holtzman , Jelena Damnjanovic
发明人： Rashid Attar , Bibhu Mohanty , Jack Holtzman , Jelena Damnjanovic
IPC分类号： H04W24/00 , H04W24/04 , H04W24/08 , H04Q7/20
CPC分类号： H04W24/08 , H04W28/02 , H04W88/08
摘要： A method and apparatus for overload detection and control is disclosed. A base station may be in communication with one or more subscriber stations. Overload may be detected as a function of a plurality of parameters, each of which places a load on the base station. Both the type and degree of overload may be ascertained. Appropriate remedial measures may be implemented that are suitable to the type and degree of overload detected.
摘要翻译：公开了一种用于过载检测和控制的方法和装置。基站可以与一个或多个用户站进行通信。可以根据多个参数检测过载，每个参数在基站上施加负载。可以确定过载的类型和程度。可以采取适当的补救措施，适用于检测到的过载类型和程度。

7. 发明授权

US06597922B1 Method and apparatus for efficient candidate frequency search while initiating a handoff in a code division multiple access communication system 有权
标题翻译：用于在码分多址通信系统中发起切换的有效候选频率搜索的方法和装置
公开(公告)号：US06597922B1
公开(公告)日：2003-07-22
申请号：US09312262
申请日：1999-05-14
申请人： Fuyun Ling , Jack Holtzman , Charles E. Wheatley, III , Tao Chen , Edward G. Tiedemann , Gilbert Leung
发明人： Fuyun Ling , Jack Holtzman , Charles E. Wheatley, III , Tao Chen , Edward G. Tiedemann , Gilbert Leung
IPC分类号： H04B700
CPC分类号： H04W52/225 , H04W36/0094 , H04W52/40 , H04W52/42
摘要： A method and apparatus for efficient candidate frequency search while initiating a handoff in a code division multiple access communication system. The method includes when the pilot signal is transmitted by the mobile station that is power controlled to a target receive level, the traffic channel power level is increased relative to the pilot channel to improve receiver performance. An improved feature is that the received pilot received at the base station stays the same while the receiver receives extra energy in the redundant traffic symbols received to enhance the probability of correctly decoding the received frame. The base station detects the absence of the mobile station transmitted signal from the frequency of interest. If the base station is aware of the starting time and duration of the absence, it can focus its detection during this predetermined time period. The performance can be improved if the absence of the signal is spread across two frames at the frame boundary.
摘要翻译：一种用于在码分多址通信系统中发起切换的有效候选频率搜索的方法和装置。该方法包括当导频信号由被功率控制到目标接收电平的移动台发送时，业务信道功率电平相对于导频信道增加，以提高接收机性能。改进的特征是在基站处接收到的接收到的导频保持相同，而接收机在接收到的冗余业务符号中接收到额外的能量以增强正确解码接收帧的概率。基站从感兴趣的频率检测到不存在移动台发送的信号。如果基站知道不存在的起始时间和持续时间，则可以在该预定时间段内集中其检测。如果没有信号在帧边界的两个帧上扩展，则可以提高性能。

8. 发明授权

US07072321B2 Forward-link scheduling in a wireless communication system 失效
标题翻译：无线通信系统中的前向链路调度
公开(公告)号：US07072321B2
公开(公告)日：2006-07-04
申请号：US10972198
申请日：2004-10-22
申请人： Jack Holtzman , Gang Bao
发明人： Jack Holtzman , Gang Bao
IPC分类号： H04B7/216
CPC分类号： H04W72/1226 , H04L1/0002 , H04L1/0015 , H04L1/0046 , H04W52/16 , H04W52/223 , H04W52/26 , H04W52/50 , H04W72/1242
摘要： 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.
摘要翻译：一种用于选择有利的传输时隙的方法和装置，用于结合语音数据通信来传送非语音数据。基于在基本信道上由基站发送到远程站的语音数据的发送功率电平来选择反映用于在辅助信道上发送非语音数据的有利功率电平和传输速率的时隙。选择有利的传输时隙，而无需向基站发送关于用于补充信道的频率信道或干扰信息的远程站消息传递信息。在无线通信系统中执行前向链路调度的方法包括：确定帧开始处的可用基站功率，在每个补充信道的帧开始处预测所需的发射功率，确定具有预测的传输可持续的速率功率除以最近窗口的吞吐量以获得补充信道优先级索引，并允许具有最高优先级索引的补充信道在下一帧上进行传输。

9. 发明申请

US20050190718A1 Method and apparatus for transmitting data traffic on a wireless communication channel 有权
标题翻译：用于在无线通信信道上发送数据业务的方法和装置
公开(公告)号：US20050190718A1
公开(公告)日：2005-09-01
申请号：US10961652
申请日：2004-10-08
申请人： Jack Holtzman , Sandip Sarkar , Ahmed Saifuddin
发明人： Jack Holtzman , Sandip Sarkar , Ahmed Saifuddin
IPC分类号： H04B7/005 , H04B7/26 , H04L1/00 , H04L1/16 , H04L1/18 , H04W52/22 , H04W52/28 , H04W52/48 , H04Q7/20 , H04J3/24
CPC分类号： H04L1/1819 , H04L1/0002 , H04L1/0009 , H04L1/1825 , H04L1/1845 , H04L1/1887 , H04W52/282
摘要： 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 scheduled for periodic transmissions when the target is moving moderately or fast. In another method, long delays for retransmissions in a channel sensitive timing scheme are eliminated. In other methods, a combination of periodic and aperiodic retransmissions are used to achieve the desired frame error rate.
摘要翻译：呈现用于在最佳信道条件下调度数据分组传输的方法和装置。在一种方法中，当目标远程站缓慢移动时，在有利的信道条件期间调度数据分组重传，以便当目标移动适度或快速时被调度用于周期性传输。在另一种方法中，消除了在信道敏感定时方案中重传的长时间延迟。在其他方法中，使用周期性和非周期性重传的组合来实现期望的帧错误率。

10. 发明申请

US20050129063A1 Method and apparatus for scheduling packet data transmissions in a wireless communication system 有权
标题翻译：一种用于在无线通信系统中调度分组数据传输的方法和装置
公开(公告)号：US20050129063A1
公开(公告)日：2005-06-16
申请号：US11040743
申请日：2005-01-21
申请人： Leonid Razoumov , Jack Holtzman
发明人： Leonid Razoumov , Jack Holtzman
IPC分类号： H04L29/06 , H04L1/00 , H04M11/00 , H04W16/14 , H04W72/10 , H04W72/12 , H04W74/00 , H04J3/16
CPC分类号： H04W72/1247 , H04L1/0002 , H04L1/0018 , H04L1/0025 , H04L1/0026
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/I) 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. The PF values allow the base station to schedule active mobile units having pending data. The scheduling produces an approximately equal share of the allocated transmission time to the multiple mobile stations.
摘要翻译：一种用于在无线通信系统中调度分组数据传输的方法（18），其中每用户优先级功能（PF）（24）基于由速率请求指示符（RRI）指示的信道状况。该方法还考虑了由预定的服务质量（QOS）要求所规定的公平性标准。在一个实施例中，速率请求指示符是数据速率请求（DRR）。在另一个实施例中，速率请求指示符是载波到干扰（C / I）信息。在示例性实施例中，基站计算多个移动用户的优先级功能（PF）。每个PF是速率请求指示符和给定移动用户的预计吞吐量的函数。 PF值允许基站调度具有未决数据的活动移动单元。调度产生与多个移动站的分配的传输时间的近似相等的份额。

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