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1. 发明授权

US6154638A Methods and apparatus for determining forward and reverse link performance in a wireless communication system 失效
标题翻译：用于确定无线通信系统中的前向和反向链路性能的方法和装置
公开(公告)号：US6154638A
公开(公告)日：2000-11-28
申请号：US8255
申请日：1998-01-16
申请人： Terry Si-Fong Cheng , Asif Dawoodi Gandhi
发明人： Terry Si-Fong Cheng , Asif Dawoodi Gandhi
IPC分类号： H04B7/26 , H04B17/00
CPC分类号： H04B17/3911 , H04B17/16
摘要： Link performance is measured in a code division multiple access (CDMA) personal communication service (PCS) or cellular system, or other type of wireless system, using a test set-up which permits the simulation of various changes in system configuration. An illustrative embodiment includes a first attenuator arranged in a common portion of a receive path and a transmit path of a mobile station of the system, and a second attenuator arranged in either a receive-only portion of the receive path or a transmit-only portion of the transmit path. The amounts of attenuation provided by the first and second attenuators are decoupled such that a different amount of attenuation can be provided on the transmit path than on the receive path. Performance of forward and reverse links of the system are measured while varying a value of at least one of the first or second attenuators. For a given measurement, the attenuator values may be selected to simulate performance of the system in a configuration in which base station amplifier power is increased or decreased. As another example, the attenuator values may be selected to simulate performance of the system in a configuration in which cell size is increased. This arrangement of decoupled forward and reverse link attenuation in accordance with the invention permits efficient and accurate determination of link balance conditions.
摘要翻译：在码分多址（CDMA）个人通信业务（PCS）或蜂窝系统或其他类型的无线系统中测量链路性能，使用允许模拟系统配置的各种变化的测试设置。示例性实施例包括布置在系统的移动台的接收路径和发送路径的公共部分中的第一衰减器，以及布置在接收路径的仅接收部分或仅发送部分中的第二衰减器的传输路径。由第一衰减器和第二衰减器提供的衰减量被去耦合，使得在发射路径上可以提供与在接收路径上不同的衰减量。在改变第一衰减器或第二衰减器中的至少一个衰减器的值的同时测量系统的正向和反向链路的性能。对于给定的测量，可以选择衰减器值以在基站放大器功率增加或减小的配置中模拟系统的性能。作为另一示例，可以选择衰减器值以在其中小区大小增加的配置中模拟系统的性能。根据本发明的去耦合正向和反向链路衰减的这种布置允许链路平衡条件的有效和准确的确定。

2. 发明授权

US06640104B1 Dynamic channel assignment for intelligent antennas 有权
标题翻译：智能天线的动态信道分配
公开(公告)号：US06640104B1
公开(公告)日：2003-10-28
申请号：US09473513
申请日：1999-12-28
申请人： Simon C. Borst , Terry Si-Fong Cheng , Sudheer A. Grandhi , Boris Dmitrievich Lubachevsky , Philip Alfred Whiting
发明人： Simon C. Borst , Terry Si-Fong Cheng , Sudheer A. Grandhi , Boris Dmitrievich Lubachevsky , Philip Alfred Whiting
IPC分类号： H04Q720
CPC分类号： H04B7/088 , H04B7/086 , H04W16/10 , H04W16/28 , H04W24/10 , H04W72/082
摘要： Disclosed is a method for improving call quality and capacity by integrating a dynamic channel allocation technique into an intelligent antenna system. The intelligent antenna systems includes beams which are grouped into sets, wherein each set has associated a long list and a primary short list, and each beam has associated a secondary short list. In one embodiment, long term interference levels are measured on each beam in a set of beams for a plurality of communication channels to produce the long list; short term interference levels are measured on each beam in the set of beams for a portion of the plurality of communication channels to produce a plurality of secondary short lists and the primary short list; and communication channels are assigned to a mobile-station from the portion of the plurality of communication channels based on the measured short term interference levels on each beam in the set of beams. The long list and the primary short list are based upon highest measured long and short term interference levels, respectively, for each of the plurality of communication channels across each beam in the set of beams.
摘要翻译：公开了一种通过将动态信道分配技术集成到智能天线系统中来改善呼叫质量和容量的方法。智能天线系统包括被分组成组的波束，其中每个组具有相关联的长列表和主要短列表，并且每个波束具有辅助短列表。在一个实施例中，在用于多个通信信道的一组波束中的每个波束上测量长期干扰电平以产生长列表; 在多个通信信道的一部分的波束组中的每个波束上测量短期干扰电平以产生多个次要短列表和主要短列表; 并且基于在该组波束中的每个波束上测量的短期干扰电平，从多个通信信道的部分向移动台分配通信信道。长列表和主要短列表分别基于跨越该组波束中的每个波束的多个通信信道中的每一个的最高测量长和短期干扰电平。

3. 发明授权

US07706311B2 Expanding cell radius in a wireless communication system 有权
标题翻译：在无线通信系统中扩展小区半径
公开(公告)号：US07706311B2
公开(公告)日：2010-04-27
申请号：US11298554
申请日：2005-12-09
申请人： Qi Bi , Terry Si-Fong Cheng , Frances Jiang , Yang Yang
发明人： Qi Bi , Terry Si-Fong Cheng , Frances Jiang , Yang Yang
IPC分类号： H04B7/00
CPC分类号： H04W28/22 , H04L1/0072 , H04W16/24
摘要： The present invention provides a method and an apparatus for a wireless communication between a base station and at least one mobile station. The method includes receiving a request for a data rate from the mobile station on a reverse link channel to the base station. The method further includes, in response to the request, skipping a first slot after a delay for a portion of a slot on a forward link transmission before transmitting a data packet in a second slot. By beginning the forward link transmission at the start of the second slot, for example, a software module may cause the base station to skip a slot immediately after the half slot delay. This additional delay of one slot or a portion of the slot may expand radius of a cell for a wireless communication between the base station and the mobile station in a relatively high-speed wireless data network.
摘要翻译：本发明提供了一种用于基站与至少一个移动台之间的无线通信的方法和装置。该方法包括从反向链路信道向基站接收来自移动站的数据速率请求。该方法还包括响应于该请求，在在第二时隙中发送数据分组之前在前向链路传输上的时隙的一部分的延迟之后跳过第一时隙。通过在第二时隙的开始处开始前向链路传输，例如，软件模块可以使基站在半时隙延迟之后立即跳过一个时隙。一个时隙或时隙的一部分的这种附加延迟可以扩展用于在相对高速无线数据网络中的基站和移动站之间的无线通信的小区的半径。

4. 发明授权

US06963750B1 CDMA power control for paging and initial traffic channel power 有权
标题翻译： CDMA功率控制用于寻呼和初始业务信道功率
公开(公告)号：US06963750B1
公开(公告)日：2005-11-08
申请号：US09163396
申请日：1998-09-30
申请人： Terry Si-Fong Cheng , Ching Yao Huang
发明人： Terry Si-Fong Cheng , Ching Yao Huang
IPC分类号： H04B1/04 , H04B7/005 , H04B7/26 , H04Q7/20
CPC分类号： H04W52/50
摘要： A code-division multiple access power control for paging channel power and initial traffic channel power dynamically determines optimum initial channel power in accordance with pilot signal strength of a pilot signal as received at a mobile station and current forward link loading of the desired sector. The optimum initial paging channel power and initial traffic channel power may be determined either at a base station or a mobile switching center of the mobile communication system. A paging signal or call is transmitted from the base station to the mobile station over a paging channel and a traffic channel at the optimum paging channel and initial traffic channel power.
摘要翻译：用于寻呼信道功率和初始业务信道功率的码分多址功率控制根据在移动台接收的导频信号的导频信号强度和期望扇区的当前正向链路负载来动态地确定最佳初始信道功率。可以在移动通信系统的基站或移动交换中心确定最佳初始寻呼信道功率和初始业务信道功率。通过寻呼信道和最佳寻呼信道的业务信道和初始业务信道功率，从基站向移动台发送寻呼信号或呼叫。

5. 发明授权

US06535736B1 System and method for variably delaying access requests in wireless communications system 有权
标题翻译：在无线通信系统中可变延迟接入请求的系统和方法
公开(公告)号：US06535736B1
公开(公告)日：2003-03-18
申请号：US09210019
申请日：1998-12-11
申请人： Dan Anthony Balogh , John K. Burgess , Terry Si-Fong Cheng , Ching Yao Huang , Shawn S. Yu
发明人： Dan Anthony Balogh , John K. Burgess , Terry Si-Fong Cheng , Ching Yao Huang , Shawn S. Yu
IPC分类号： H04Q720
CPC分类号： H04W28/16 , H04W28/02 , H04W74/00
摘要： The present invention, in illustrative embodiments, implements systems and methods for adjusting the timing of access requests in mobile communications systems, such as IS-95-A mobile telephone systems, to reduce the likelihood of request collisions—especially during periods of very high calling rates. These embodiments employ measurements of access channel occupancy, as well as system operator inputs, to develop thresholds and parameter translations at a base station. Execution of control algorithms at a base station advantageously yields modified persistence test parameters sent to mobile stations. When overload conditions are present, these modified parameters cause the mobile stations to experience variable delays through judicious control of persistence testing at the mobile stations.
摘要翻译：本发明在示例性实施例中实现了用于调整诸如IS-95-A移动电话系统的移动通信系统中的接入请求的定时的系统和方法，以减少请求冲突的可能性，特别是在非常高的呼叫期间价格。这些实施例采用访问信道占用的测量以及系统操作员输入来在基站处开发阈值和参数转换。在基站执行控制算法有利地产生发送到移动台的经修改的持久性测试参数。当存在过载条件时，这些修改的参数使得移动台通过在移动站上持久性测试的可靠控制来经历可变延迟。

6. 发明授权

US06999425B2 Dynamic reverse link rate limit algorithm for high data rate system 失效
公开(公告)号：US06999425B2
公开(公告)日：2006-02-14
申请号：US09732454
申请日：2000-12-07
申请人： Terry Si-Fong Cheng , Frances Jiang , Stanley Vitebsky
发明人： Terry Si-Fong Cheng , Frances Jiang , Stanley Vitebsky
IPC分类号： H04Q7/00 , H04J3/22
CPC分类号： H04L1/0002 , H04W28/22
摘要： A method for determining the reverse link data Rate Limit for mobile stations active on the reverse link of a High Data Rate system is disclosed. In the ideal case, the Rate Limit is based on only the number of mobile stations located in a common sector that are actually active on the reverse link. Currently, the Rate Limit is determined from the total number of mobile stations in a common sector where the total includes mobiles that are transmitting and receiving. Thus, the current method includes mobile stations that are active on the forward link and may not be active on the reverse link. In this invention, a more optimum method of estimating the reverse link loading is obtained from calculations which includes only the mobile stations which are active on the reverse link. An estimate of the reverse link loading of the mobile stations in a common cell is obtained by adding together the data rates of the data sent from each mobile in a common sector during a common frame. This aggregate rate of data during the frame is filtered to minimize irregularities by using the moving average of an infinite impulse response filter and then normalized. The normalized result is a percentage of the maximum achievable aggregate reverse link rate. The final result is compared with a set of threshold values to obtain the maximum Rate Limit that is then set for each mobile station.

7. 发明授权

US06791954B1 Method for enhanced power control by adaptively adjusting an amount of change in a target signal-to-noise ratio 有权
标题翻译：通过自适应地调整目标信噪比的变化量来增强功率控制的方法
公开(公告)号：US06791954B1
公开(公告)日：2004-09-14
申请号：US09592287
申请日：2000-06-12
申请人： Terry Si-Fong Cheng , Ching Yao Huang , Frances Jiang , Alexandro Federico Salvarini
发明人： Terry Si-Fong Cheng , Ching Yao Huang , Frances Jiang , Alexandro Federico Salvarini
IPC分类号： H04B705
CPC分类号： H04W52/125 , H04W52/20 , H04W52/225 , H04W52/24 , H04W52/36
摘要： In the method according to the present invention, a signal from a mobile station is received. The standard deviation of the symbol error rate is determined, and power control with adaptive adjustment of an amount of change in the target signal-to-noise ratio is performed based on the determined standard deviation of the signal error rate and a target associated therewith.
摘要翻译：在根据本发明的方法中，接收来自移动台的信号。确定符号错误率的标准偏差，并且基于所确定的信号错误率的标准偏差和与其相关联的目标来执行具有目标信噪比的变化量的自适应调整的功率控制。

8. 发明授权

US06240287B1 Processing overload control at base stations of cellular wireless communication systems 有权
标题翻译：蜂窝无线通信系统基站处理过载控制
公开(公告)号：US06240287B1
公开(公告)日：2001-05-29
申请号：US09167157
申请日：1998-10-06
申请人： Terry Si-Fong Cheng , Ching Yao Huang , Joe Huang , Bee Yun Yu
发明人： Terry Si-Fong Cheng , Ching Yao Huang , Joe Huang , Bee Yun Yu
IPC分类号： H04Q730
CPC分类号： H04W48/06 , H04W24/10 , H04W36/00
摘要： Call processing overload at a base station of a cellular wireless network is controlled by monitoring a level of call processing at the base station, and reducing a present handoff rate for active users when the call processing level exceeds a first threshold less than a maximum call processing capacity. When the call processing level at the base station exceeds a second threshold greater than the first threshold, a present rate of call originations or terminations is reduced while further reducing the handoff rate.
摘要翻译：在蜂窝无线网络的基站处的呼叫处理过载通过监视基站处的呼叫处理级别来控制，并且当呼叫处理级别超过小于最大呼叫处理的第一阈值时，降低活动用户的当前切换速率容量。当基站的呼叫处理级别超过大于第一阈值的第二阈值时，减少呼叫发起或终止的当前速率，同时进一步降低切换速率。

9. 发明授权

US06973059B1 Method for frequency hopping in a TDMA wireless communication system 有权
标题翻译： TDMA无线通信系统中的跳频方法
公开(公告)号：US06973059B1
公开(公告)日：2005-12-06
申请号：US09659590
申请日：2000-09-11
申请人： Simon C. Borst , Terry Si-Fong Cheng , Adrian R. Flewitt , Sudheer A. Grandhi , Roland K. Henter , Martine M. Herpers , Hans-Juergen Kettschau , Boris D. Lubachevsky , Michael Soellner
发明人： Simon C. Borst , Terry Si-Fong Cheng , Adrian R. Flewitt , Sudheer A. Grandhi , Roland K. Henter , Martine M. Herpers , Hans-Juergen Kettschau , Boris D. Lubachevsky , Michael Soellner
IPC分类号： H04B1/713 , H04W72/08 , H04Q7/00
CPC分类号： H04B1/7136 , H04B1/715 , H04W72/08
摘要： The interference on the available communication frequencies is measured during an idle time slot over a first period of time at a first rate. The available frequencies are prioritized based on the interference measurements, and a list is formed of the frequencies having the lowest interference measurements. Interference measurements are made at a second rate, greater than the first rate, for a second period of time less than the first period. When a call is assigned, the interference level requirements for the call are given, and the carrier power level of the call is measured. The carrier-to-interference ratio of each frequency in the list is determined using the second interference measurements and the measured carrier power. The frequencies in the list meeting the interference level requirements for the call are then selected, and frequency hopping while serving the call is performed using the selected frequencies.
摘要翻译：在空闲时隙中以第一速率在第一时间段内测量对可用通信频率的干扰。基于干扰测量对可用频率进行优先排列，并且由具有最低干扰测量的频率形成列表。在比第一周期少的第二时间段内以大于第一速率的第二速率进行干扰测量。当分配呼叫时，给出呼叫的干扰电平要求，并测量呼叫的载波功率电平。使用第二干涉测量和所测量的载波功率来确定列表中每个频率的载波干扰比。然后选择满足呼叫的干扰电平要求的列表中的频率，并且使用所选择的频率来执行服务呼叫期间的跳频。

10. 发明授权

US06925057B2 Method of scheduling a quality of service level in a high data rate system 失效
标题翻译：在高数据速率系统中调度服务质量水平的方法
公开(公告)号：US06925057B2
公开(公告)日：2005-08-02
申请号：US09731213
申请日：2000-12-06
申请人： Terry Si-Fong Cheng , Frances Jiang , Stanley Vitebsky
发明人： Terry Si-Fong Cheng , Frances Jiang , Stanley Vitebsky
IPC分类号： H04L12/56 , G01R31/08
CPC分类号： H04W72/1231 , H04L47/10 , H04L47/14 , H04L47/15 , H04L47/24 , H04L47/70 , H04L47/788 , H04L47/805 , H04L47/824
摘要： The present invention is a method for selectively providing, on demand, a Quality of Service level to an end user's data transmitted from a base station to a mobile station of a High Data Rate system. In the disclosed method, a data base is established which contains the Quality of Service level selected by a mobile user from a plurality of levels for data to be transmitted from the base station to the mobile station. Using the reverse link, an end user at a mobile notifies the base station that it is ready to receive data and specifies the rate at which the data is to be sent. Upon receipt of the request for data from the mobile terminal, the base station accesses and runs a scheduler which determines which user's data is to be transmitted next. For each end user, the scheduler divides the requested data rate by the average rate of data received by the mobile during a specific interval and then combines by adding or multiplying the result with the Quality of Service level requested by the end user for data. The end user that has the greatest final result is normally selected to next receive data. The scheduler then conditions the base station to transmit data to the identified mobile station at the requested rate and selected Quality of Service level.
摘要翻译：本发明是一种用于根据需要有选择地向从基站发送到高数据速率系统的移动台的最终用户数据提供服务质量水平的方法。在所公开的方法中，建立了一个数据库，其中包含由移动用户从基站到移动站发送的数据的多个级别选择的服务质量等级。使用反向链路，移动终端用户通知基站已准备好接收数据，并指定要发送数据的速率。在接收到来自移动终端的数据请求时，基站接入并运行调度器，该调度器确定接下来要发送哪个用户的数据。对于每个最终用户，调度器将所请求的数据速率除以移动台在特定间隔期间接收的平均数据速率，然后通过将结果与最终用户为数据请求的服务质量等级相加或相乘而组合。通常选择具有最大最终结果的最终用户接下来接收数据。然后，调度器使基站根据所请求的速率和所选择的服务质量级别对所识别的移动台进行数据传输。

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