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1. 发明授权

US06930981B2 Method for data rate selection in a wireless communication system 有权
标题翻译：无线通信系统中数据速率选择的方法
公开(公告)号：US06930981B2
公开(公告)日：2005-08-16
申请号：US09730637
申请日：2000-12-06
申请人： Nandu Gopalakrishnan , Srinivas R. Kadaba , Farooq Ullah Khan , Sanjiv Nanda , Mehmet Oguz Sunay , Ganapathy Subramanian Sundaram
发明人： Nandu Gopalakrishnan , Srinivas R. Kadaba , Farooq Ullah Khan , Sanjiv Nanda , Mehmet Oguz Sunay , Ganapathy Subramanian Sundaram
IPC分类号： H04J11/00 , H04J13/00 , H04L1/00 , H04B7/216
CPC分类号： H04L1/0022 , H04B2201/70703 , H04J13/0048 , H04L1/0003 , H04L1/0009 , H04L1/0025 , H04W28/22 , H04W72/042 , H04W72/0466
摘要： Data rate determination is provided in a system where the available power fraction and available Walsh codes in each active leg are dynamically changing over time. This method adapts the rate (modulation and coding) based on the combined resource (power & code space) levels seen at each cell. The method results in maximization of the rate supportable by each cell given their resource constrained situation while meeting the constraints of target packet or frame error rate and orthogonality. Furthermore, improved fast cell selection by the mobile results due to this approach that is based on knowledge of combined resource (power & code space) levels across the cells in the active set.
摘要翻译：在系统中提供数据速率确定，其中每个活动腿中的可用功率分数和可用沃尔什码随时间动态变化。该方法基于在每个小区看到的组合资源（功率和码空间）水平来适应速率（调制和编码）。该方法在满足目标包或帧错误率和正交性的约束的情况下，给出了其资源受限情况下每个小区可支持的速率的最大化。此外，由于基于活动集中的单元格上的组合资源（功率和代码空间）级别的知识的这种方法，通过移动结果来改进快速小区选择。

2. 发明授权

US07158504B2 Multiple mode data communication system and method and forward and/or reverse link control channel structure 有权
公开(公告)号：US07158504B2
公开(公告)日：2007-01-02
申请号：US09861967
申请日：2001-05-21
申请人： Srinivas R. Kadaba , Farooq Ullah Khan , Eshwar Pittampalli , Ashok N. Rudrapatna , Ganapathy Subramanian Sundaram , Subramanian Vasudevan , Yunsong Yang
发明人： Srinivas R. Kadaba , Farooq Ullah Khan , Eshwar Pittampalli , Ashok N. Rudrapatna , Ganapathy Subramanian Sundaram , Subramanian Vasudevan , Yunsong Yang
IPC分类号： H04B7/212 , H04Q7/20
CPC分类号： H04W74/02 , H04L1/0002 , H04L1/1819 , H04L1/1845
摘要： A multiple mode data communication system and method provides the flexibility to schedule wireless unit transmissions and/or allow the wireless unit to transmit autonomously. In certain embodiments, the wireless units can transmit autonomously and/or use scheduling depending on the data rate, the length of the data packet or the type of data. For example, the wireless units can transmit autonomously at lower data rates and use scheduling at higher data rates. Thus, the multiple mode system enables wireless unit transmissions to be scheduled and/or be transmit autonomously, and wireless units can simultaneously operate in different scheduling and/or autonomous modes. Depending on the embodiment, the system can provide even greater flexibility in operation by permitting wireless units to be scheduled by a single base station, scheduled by a multiplicity of base stations simultaneously or otherwise, via coordination between base stations, scheduled by a multiplicity of base stations in an uncoordinated and asynchronous manner, allowed to transmit autonomously, and/or allowed to transmit autonomously under base station supervision (i.e. rate control/adjustment by the base station). Additionally, a forward and/or reverse link control channel structure is provided which can be used to implement the multiple mode data communication system and/or support various features enabling increased throughput over a shared data channel in a wireless communications system.

3. 发明授权

US07133688B2 Method for improving uplink control channel efficiency in a wireless communication system 有权
标题翻译：一种改善无线通信系统中上行控制信道效率的方法
公开(公告)号：US07133688B2
公开(公告)日：2006-11-07
申请号：US10117508
申请日：2002-04-05
申请人： Arnab Das , Nandu Gopalakrishnan , Farooq Ullah Khan , Wenfeng Zhang
发明人： Arnab Das , Nandu Gopalakrishnan , Farooq Ullah Khan , Wenfeng Zhang
IPC分类号： H04B17/00 , H04B7/00 , H04J3/00 , H04Q7/20
CPC分类号： H04W52/286 , H04W52/34 , H04W52/40 , H04W52/54
摘要： A method of using a generated pilot signal inserted in a CQF slot of an uplink signaling channel to control the transmission power of data information independently of the transmission power of voice information regardless of whether the voice and data information are transmitted simultaneously.
摘要翻译：使用插入在上行信令信道的CQF时隙中的生成的导频信号的方法，无论语音和数据信息是否同时发送，都独立于语音信息的发送功率来控制数据信息的发送功率。

4. 发明授权

US07023899B2 Method for reliable signaling information transmission in a wireless communication system 有权
公开(公告)号：US07023899B2
公开(公告)日：2006-04-04
申请号：US09853000
申请日：2001-05-10
申请人： Arnab Das , Nandu Gopalakrishnan , Farooq Ullah Khan
发明人： Arnab Das , Nandu Gopalakrishnan , Farooq Ullah Khan
IPC分类号： H04B1/707 , H04B7/216
CPC分类号： H04L1/0071 , H04B2201/70701 , H04L1/0061 , H04L1/007 , H04L1/0072 , H04L25/03866
摘要： A method for reliably transmitting signaling information is provided. One type of signaling information is transmitted over a primary control channel. The signaling information that is to be transmitted over the primary control channel is defined as a set of particular information. Other signaling information are conveyed over a secondary control channel. Prior to transmission, the information to be conveyed over the secondary channel is scrambled in accordance with a particular scrambling procedure that indicates the information that is to be sent over the primary control channel. The scrambling is thus used to encode the information content of the primary control channel into the information of the secondary control channel thereby further protecting the integrity of the information being conveyed over both control channels.

5. 发明授权

US07009949B1 Asymmetric rate feedback and adjustment system for wireless communications 失效
标题翻译：无线通信的非对称速率反馈和调整系统
公开(公告)号：US07009949B1
公开(公告)日：2006-03-07
申请号：US09716106
申请日：2000-11-17
申请人： Nandu Gopalakrishnan , Teck H. Hu , Farooq Ullah Khan , Achilles George Kogiantis , Pantelis Monogioudis , Ashwin Sampath
发明人： Nandu Gopalakrishnan , Teck H. Hu , Farooq Ullah Khan , Achilles George Kogiantis , Pantelis Monogioudis , Ashwin Sampath
IPC分类号： H04Q7/00
CPC分类号： H04L1/0027 , H04L1/0002 , H04L1/0025
摘要： A rate feedback and adaptation scheme or system uses a rate of rate feedback asymmetrical with the rate of data rate adaptation. In particular, the rate adaptation system provides a rate of rate feedback slower than the rate of rate adaptation. Thus, by allowing the base station to change the data rate more frequently than the individual wireless units reports the rate information, the rate adaptation system can provide improved flexibility and more efficient use of wireless resources while reducing the processing and transmission overhead required to report the rate information. For example, every 3 slots, a wireless unit can calculate and report a rate for the wireless unit to use on a shared channel to send data. The base station receives the rates from the wireless units seeking to send data over the shared channel and selects a wireless unit to use the shared channel. If the base station can adapt the data rate every slot, the base station can adapt the data rate in accordance with a rate reported by another wireless unit, thereby improving system performance. Because of the small slot duration (for example, 0.67 microseconds), the relatively reduced rate of reporting should not adversely effect system performance since it is highly unlikely that the achievable data rate will change over a period of a slot under most operating conditions.
摘要翻译：速率反馈和适应方案或系统使用速率反馈速率与数据速率适配速率不对称。特别地，速率适配系统提供比速率适应速率慢的速率反馈速率。因此，通过允许基站比各个无线单元报告速率信息更频繁地改变数据速率，速率适配系统可以提供改进的灵活性和更有效地使用无线资源，同时减少报告所需的处理和传输开销费率信息。例如，每3个时隙，无线单元可以计算和报告无线单元在共享信道上使用的速率来发送数据。基站从寻求通过共享信道发送数据的无线单元接收速率，并选择无线单元以使用共享信道。如果基站能够适应每个时隙的数据速率，则基站可以根据另一无线单元报告的速率来调整数据速率，从而提高系统性能。由于小时隙持续时间（例如，0.67微秒），相对较低的报告速率不应对系统性能产生不利影响，因为在大多数操作条件下，可实现的数据速率在一段时间内将不可能改变。

6. 发明授权

US07006464B1 Downlink and uplink channel structures for downlink shared channel system 有权
标题翻译：用于下行链路共享信道系统的下行链路和上行链路信道结构
公开(公告)号：US07006464B1
公开(公告)日：2006-02-28
申请号：US09716105
申请日：2000-11-17
申请人： Nandu Gopalakrishnan , Teck H. Hu , Farooq Ullah Khan , Achilles George Kogiantis , Pantelis Monogioudis , Ashwin Sampath
发明人： Nandu Gopalakrishnan , Teck H. Hu , Farooq Ullah Khan , Achilles George Kogiantis , Pantelis Monogioudis , Ashwin Sampath
IPC分类号： H04Q7/00
CPC分类号： H04W52/58 , H04B7/2643 , H04W52/262 , H04W52/60
摘要： An uplink and downlink channel structure supports a shared downlink data channel. The new structure accommodates advanced physical and Medium Access Control (MAC) layer techniques, such as incremental redundancy (IR), fast adaptation to channel conditions, and multiple input multiple output (MIMO) antenna configuration. The proposed changes are intended to lead to a downlink structure that achieves higher spectral efficiency for the packet oriented services over then shared downlink channel. Additionally, the new structure uses the base station transmit power information and of the channelization (OVSF) code space more efficiently.
摘要翻译：上行链路和下行链路信道结构支持共享下行链路数据信道。新结构适应先进的物理和媒体访问控制（MAC）层技术，例如增量冗余（IR），快速适应信道条件和多输入多输出（MIMO）天线配置。所提出的改变旨在导致在随后的共享下行链路信道上为面向分组的服务实现更高频谱效率的下行链路结构。此外，新结构更有效地使用基站发射功率信息和信道化（OVSF）码空间。

7. 发明授权

US07227851B1 Transport channel multiplexing system and method 失效
标题翻译：传输信道复用系统及方法
公开(公告)号：US07227851B1
公开(公告)日：2007-06-05
申请号：US09716104
申请日：2000-11-17
申请人： Nandu Gopalakrishnan , Teck H. Hu , Farooq Ullah Khan , Achilles George Kogiantis , Pantelis Monogioudis , Ashwin Sampath
发明人： Nandu Gopalakrishnan , Teck H. Hu , Farooq Ullah Khan , Achilles George Kogiantis , Pantelis Monogioudis , Ashwin Sampath
IPC分类号： H04B7/216
CPC分类号： H04L1/1887 , H04L1/0025 , H04L1/0029 , H04L1/0068 , H04L1/0071 , H04L1/0079 , H04L1/1819 , H04L1/1874
摘要： A transport channel multiplexing system provides improved use of wireless resources in a shared data channel system. For example, the transport channel system reduces the amount of transport format information required for using a shared data channel, such as the actual number of packet data units in a transport channel of the shared data channel. Additionally, by scheduling or multiplexing coded sub-blocks from one or more transport channels over the shared data channel, the transport channel multiplexing system can provide improved integration with other important features, such as incremental redundancy, fast adaptation to channel conditions and transport channel dependent quality of service (QOS) control, to provide improved system performance.
摘要翻译：传输信道复用系统在共享数据信道系统中提供对无线资源的改进的使用。例如，传输信道系统减少使用共享数据信道所需的传输格式信息的数量，例如共享数据信道的传输信道中的分组数据单元的实际数量。另外，通过在共享数据信道上调度或复用来自一个或多个传输信道的编码子块，传输信道复用系统可以提供与其他重要特征的改进的集成，例如增量冗余，快速适应信道条件和传输信道依赖服务质量（QOS）控制，提高系统性能。

8. 发明授权

US07746953B1 Method and apparatus for asynchronous incremental redundancy transmission in a communication system 有权
标题翻译：通信系统中异步增量冗余传输的方法和装置
公开(公告)号：US07746953B1
公开(公告)日：2010-06-29
申请号：US09660098
申请日：2000-09-12
申请人： Farooq Ullah Khan , Sanjiv Nanda
发明人： Farooq Ullah Khan , Sanjiv Nanda
IPC分类号： H04L27/00
CPC分类号： H04L1/1819 , H04L1/1803 , H04L1/1887
摘要： Information is coded and segmented into a plurality of sub-packets. Each sub-packet contains identification information and a one-bit information status flag indicating whether the information is ‘new’ information or ‘continue’ information. The information to be transmitted is then applied to a scheduling algorithm that determines when the information is to be transmitted, how much information is to be transmitted and how many attempts at a successful transmission of the information is allowed. In this manner, the transmission of information can be performed in an asynchronous manner.
摘要翻译：信息被编码并分段成多个子分组。每个子分组包含标识信息和指示该信息是“新”信息还是“继续”信息的一位信息状态标志。然后将要发送的信息应用于确定信息何时被发送的调度算法，要发送多少信息以及允许成功发送信息的尝试次数。以这种方式，可以以异步方式执行信息的传输。

9. 发明授权

US07221648B2 Rate adaptation in a wireless communication system 有权
标题翻译：无线通信系统中的速率适配
公开(公告)号：US07221648B2
公开(公告)日：2007-05-22
申请号：US09725438
申请日：2000-11-29
申请人： Arnab Das , Farooq Ullah Khan , Sanjiv Nanda
发明人： Arnab Das , Farooq Ullah Khan , Sanjiv Nanda
IPC分类号： G01R31/08
CPC分类号： H04L1/0016 , H04L1/0002 , H04L1/0006 , H04L1/0009 , H04L1/0025 , H04L1/0066 , H04L1/0068 , H04L1/08 , H04L1/16 , H04L1/1812 , H04L2001/0093
摘要： Disclosed is a method of data rate adaptation based on channel conditions. Data is initially transmitted at a first data rate based on a measured first channel condition and subsequently re-transmitted at a second data rate based on a measured second channel condition, wherein the first channel condition is measured prior in time to the second channel condition.
摘要翻译：公开了一种基于信道条件的数据速率适配方法。基于测量的第一信道条件，数据首先以第一数据速率发送，并且随后基于测量的第二信道条件以第二数据速率重新发送，其中在时间上先测量第一信道条件到第二信道条件。

10. 发明授权

US07437654B2 Sub-packet adaptation in a wireless communication system 有权
标题翻译：无线通信系统中的子包适配
公开(公告)号：US07437654B2
公开(公告)日：2008-10-14
申请号：US09725393
申请日：2000-11-29
申请人： Arnab Das , Farooq Ullah Khan , Sanjiv Nanda
发明人： Arnab Das , Farooq Ullah Khan , Sanjiv Nanda
IPC分类号： H03M13/00 , H04B7/216
CPC分类号： H04L1/0016 , H04L1/0002 , H04L1/0006 , H04L1/0007 , H04L1/0009 , H04L1/0025 , H04L1/0026 , H04L1/0066 , H04L1/0068 , H04L1/0075 , H04L1/08 , H04L1/1812 , H04L1/1819 , H04L1/1845
摘要： Disclosed is a method of sub-packet adaptation based on data rate. Specifically, the size of a sub-packet is adapted to a data rate at which the sub-packet is to be transmitted. In one embodiment, the sub-packet is size adapted to the data rate in a format that would allow such size adapted sub-packet to be soft combined with another sub-packet of a same or different size. The size adapted sub-packet may be transmitted prior to or after the other sub-packet.
摘要翻译：公开了一种基于数据速率的子包适配方法。具体地，子分组的大小适合于要发送子分组的数据速率。在一个实施例中，子分组的大小适应于允许这种尺寸适应的子分组与相同或不同大小的另一子分组软组合的格式的数据速率。尺寸适应子分组可以在其他子分组之前或之后传输。

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