公开(公告)号：US20070058605A1

公开(公告)日：2007-03-15

申请号：US11312187

申请日：2005-12-19

申请人： Arnaud Meylan ,  Sanjiv Nanda

发明人： Arnaud Meylan ,  Sanjiv Nanda

IPC分类号： H04J3/16 ,  H04L12/403

CPC分类号： H04W72/04 ,  H04W72/0406 ,  H04W72/14 ,  H04W74/06

摘要： Systems and methodologies are described that facilitate increased communication channel bandwidth efficiency in association with scheduled time periods that allocate channel access to particular stations. According to various aspects, systems and methods are described that facilitate providing and/or utilizing reverse direction grants in connection with scheduled channel access. Such systems and/or method can mitigate an amount of unused channel access time after a station completes data transmission prior to an end of the allocated period.

摘要翻译： 描述了与分配对特定站的信道访问的调度时间段相关联的促进增加的通信信道带宽效率的系统和方法。 根据各个方面，描述了有助于提供和/或利用与调度的信道接入有关的反向授权的系统和方法。 这样的系统和/或方法可以在站在分配的周期结束之前完成数据传输之后减轻未使用的信道访问时间量。

公开(公告)号：US20070021066A1

公开(公告)日：2007-01-25

申请号：US11412578

申请日：2006-04-26

申请人： Subrahmanyam Dravida ,  Sanjiv Nanda ,  Manoneet Singh ,  Shravan Surineni

发明人： Subrahmanyam Dravida ,  Sanjiv Nanda ,  Manoneet Singh ,  Shravan Surineni

IPC分类号： H04B7/00 ,  H04M1/00

CPC分类号： H04W16/14 ,  H04W84/12 ,  H04W84/18 ,  H04W88/06

摘要： Apparatuses and methodologies are described that coordinate multiple wireless communication protocols within a mobile device. A single mobile device can contain multiple communication components (e.g., a Bluetooth component, an IEEE 802.11b/g component). To prevent interference and possible loss of data, one communication component may be prevented from transmitting or receiving data packets while the other communication component is either transmitting or receiving. The components may be coordinated by a central controller located in the mobile device. Alternatively, the communication components may exchange messages to determine transmission or reception priority. In addition, one communication component may monitor the status of the other communication component to determine unused communication slots.

摘要翻译： 描述了协调移动设备内的多个无线通信协议的装置和方法。 单个移动设备可以包含多个通信组件（例如，蓝牙组件，IEEE 802.11b / g组件）。 为了防止数据的干扰和可能的丢失，可以防止一个通信组件在其他通信组件正在发送或接收时发送或接收数据分组。 组件可以由位于移动设备中的中央控制器进行协调。 或者，通信组件可以交换消息以确定发送或接收优先级。 此外，一个通信组件可以监视另一通信组件的状态以确定未使用的通信时隙。

公开(公告)号：US07068619B2

公开(公告)日：2006-06-27

申请号：US09847567

申请日：2001-05-02

申请人： Krishna Balachandran ,  Kirk K. Chang ,  Richard Paul Ejzak ,  Wei Luo ,  Sanjiv Nanda

发明人： Krishna Balachandran ,  Kirk K. Chang ,  Richard Paul Ejzak ,  Wei Luo ,  Sanjiv Nanda

IPC分类号： H04Q7/00

CPC分类号： H04L1/1838 ,  H04L1/0068 ,  H04L1/1819 ,  H04L1/189

摘要： In a mobile station-mobile receiver arrangement a method and apparatus for a radio link control (RLC) protocol that allows partial recovery of data for streaming services. The maximum number of retransmissions allowed by the method for each RLC block is a function of the maximum delivery delay required by the streaming service and the round trip delay.

公开(公告)号：US20060107166A1

公开(公告)日：2006-05-18

申请号：US11237413

申请日：2005-09-27

申请人： Sanjiv Nanda

发明人： Sanjiv Nanda

IPC分类号： H04L1/18 ,  G08C25/02

CPC分类号： H04L1/1614 ,  H04B7/02 ,  H04B7/0417 ,  H04L1/1621 ,  H04L1/1664 ,  H04L1/1685 ,  H04L1/1835 ,  H04L1/1848 ,  H04L1/1854 ,  H04L1/1887

摘要： Embodiments disclosed herein address the need in the art for enhanced block acknowledgement. In one embodiment, a receiver indicates a decoding delay for a maximum size aggregate frame in Block Ack negotiation, which may be used by a transmitter to determine to which Block Ack Request a Block Acknowledgement is responsive. In another embodiment, a Transmission Sequence Number (TSN) may be included in a Block Ack Request. The receiver includes the TSN in the corresponding Block Ack response. This allows the transmitter to determine which frames are “in transit.” The TSN may be used to identify blocks. In another embodiment, a TSN may be associated with one or more transmitted frames. While, the TSN is not transmitted with the Block Ack Request, the transmitter may determine which TSN corresponds with a Block Ack response in accordance with acknowledgements contained therein. Combinations of these techniques may be deployed. Various other aspects are also presented.

公开(公告)号：US20060104340A1

公开(公告)日：2006-05-18

申请号：US11175787

申请日：2005-07-05

申请人： Jay Walton ,  Shravan Surineni ,  Arnaud Maylan ,  Sanjiv Nanda

发明人： Jay Walton ,  Shravan Surineni ,  Arnaud Maylan ,  Sanjiv Nanda

IPC分类号： H04B17/00

CPC分类号： H04L1/0015 ,  H04B17/309 ,  H04L1/0002 ,  H04L1/1607 ,  Y02D50/10

摘要： Techniques for performing open-loop rate control in a TDD communication system are described. The channel quality of a first link is estimated based on a transmission received via the first link. The channel quality of a second link is estimated based on the estimated channel quality of the first link and an asymmetric parameter. At least one rate for a data transmission via the second link is selected based on the estimated channel quality of the second link. The estimated channel quality for each link may be given by a set of SNR estimates for a set of transmission channels on that link. The asymmetric parameter may be determined based on (1) the capabilities (e.g., transmit power, receiver noise figure, and number of antennas) of the transmitting and receiving stations or (2) received SNRs for the first and second links.

公开(公告)号：US07027394B2

公开(公告)日：2006-04-11

申请号：US09952481

申请日：2001-09-13

申请人： Satya V. Gupta ,  Sanjiv Nanda ,  Kiran Rege ,  Nitin Sonawane ,  Manas Tandon

发明人： Satya V. Gupta ,  Sanjiv Nanda ,  Kiran Rege ,  Nitin Sonawane ,  Manas Tandon

IPC分类号： H04J1/16

CPC分类号： H04L61/2015 ,  H04L12/2801 ,  H04L12/2856 ,  H04L12/2859 ,  H04L12/2876 ,  H04L12/4641 ,  H04L29/12216 ,  H04L41/0863 ,  H04L41/0886 ,  H04L41/12 ,  H04L47/10 ,  H04L47/15 ,  H04L47/20 ,  H04L47/24 ,  H04L47/2416 ,  H04L47/2441 ,  H04L47/32 ,  H04L47/70 ,  H04L47/724 ,  H04L47/788 ,  H04L47/801 ,  H04L47/805 ,  H04L47/822 ,  H04L47/829 ,  H04L2012/5605 ,  H04L2012/5606 ,  H04L2012/561 ,  H04L2012/5651 ,  H04L2012/5679 ,  H04N7/10 ,  H04N7/17309 ,  H04N21/6118 ,  H04N21/6168 ,  H04Q3/0045 ,  H04Q11/0478

摘要： Hybrid fiber/coax networks employ the existing cable plant used for cable TV and transmit data signals in a frequency bandwidth above that which is used for cable TV. As this cable plant was deployed in a tree and branch topology, data transmissions may be susceptible to noise, variable transmission loss and frequency dispersion, particularly in the upstream direction. Further, due to the tree and branch topology, homes at the far end of the network experience much greater loss than do the homes that are near to the headend/ONU. The present system, which uses point-to-point data links between intelligent network elements located in the feeder/distribution network to provide reliable, secure, bi-directional broadband access. Digital signals are terminated at the intelligent network elements, switched and regenerated for transmission across additional upstream or downstream data links as needed to connect a home to a headend or router. The intelligent network elements can be co-located with or replace the standard network elements to take advantage of existing network configurations. The standard network elements can be selectively replaced by the intelligent network elements in an incremental approach. Packet handling at a network element includes receiving flows of packets from one or more devices coupled to the network element. A service instance associated with each packet in the packet flows is identified and a quality of service (QoS) class for each packet from the corresponding service instance is determined. The packet flow associated with each service instance is regulated according to corresponding policing criteria. In this manner, the data links are made over relatively short runs of coax cable, which can provide greater bandwidth than the typical end-to-end feeder/distribution connection between a home and the headend or optical network unit.

公开(公告)号：US07006477B1

公开(公告)日：2006-02-28

申请号：US09650787

申请日：2000-08-30

申请人： Krishna Balachandran ,  Richard Paul Ejzak ,  Sanjiv Nanda

发明人： Krishna Balachandran ,  Richard Paul Ejzak ,  Sanjiv Nanda

IPC分类号： H04J3/00 ,  H04B7/212

CPC分类号： H04B7/2659

摘要： A system and method for providing wireless time division multiplexed communications in which time is divided into a plurality of frames and each frame is divided into N data bursts, which has a first multiplexer defining a channel as a series of bursts that occur periodically every N bursts once per frame; a second multiplexer defining a sub-channel as every Mth burst of said channel; and a transmitter transmitting said channel and sub-channel from a first station to a second station. A new interleaving 0246/1357 method is used by the system which is just as good as the known 0123/4567 method when ideal frequency hopping is used, and 0246/1357 has better performance when non-ideal frequency hopping or no frequency hopping is used.

摘要翻译： 一种用于提供无线时分多路复用通信的系统和方法，其中时间被分成多个帧，并且每个帧被划分为N个数据突发，其具有将每个N个突发周期性地出现的一系列脉冲串定义为一个信道的第一多路复用器 每帧一次; 第二多路复用器，将所述信道的每第M个突发定义为子信道; 以及从第一站向第二站发送所述信道和子信道的发射机。 当使用理想跳频时，系统使用新的交错0246/1357方法，其与已知的0123/4567方法一样好，当使用非理想跳频或不跳频时，0246/1357具有更好的性能 。

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。

公开(公告)号：US20050152329A1

公开(公告)日：2005-07-14

申请号：US10754789

申请日：2004-01-08

申请人： Ranganathan Krishnan ,  Joseph Burke ,  Amol Rajkotia ,  Sanjiv Nanda

发明人： Ranganathan Krishnan ,  Joseph Burke ,  Amol Rajkotia ,  Sanjiv Nanda

IPC分类号： H04B7/26 ,  H04L12/56 ,  H04J3/00

CPC分类号： H04W72/1231 ,  H04W84/18

摘要： Systems and techniques are disclosed relating to wireless communications. The systems and techniques involve wireless communications wherein a process, module or communications terminal schedules communications over a frame having a plurality of time slots. The process, module or communications terminal may be used to assign information to be transmitted between two terminals to a block of the time slots within a frame, and reordering the time slot assignments within the frame using a permutation function, the permutation function being a function of frame count.

摘要翻译： 公开了与无线通信有关的系统和技术。 系统和技术涉及无线通信，其中过程，模块或通信终端通过具有多个时隙的帧来调度通信。 过程，模块或通信终端可以用于将要在两个终端之间传送的信息分配给帧内的时隙的块，并且使用置换功能重新排序帧内的时隙分配，该置换功能是功能 的帧数。

公开(公告)号：US20050135295A1

公开(公告)日：2005-06-23

申请号：US10964314

申请日：2004-10-13

申请人： Jay Walton ,  Sanjiv Nanda

发明人： Jay Walton ,  Sanjiv Nanda

IPC分类号： H04B7/005 ,  H04L12/28 ,  H04L12/56 ,  H04L12/66 ,  H04L29/06 ,  H04L29/08 ,  H04W52/38 ,  H04W72/04 ,  H04W72/12

CPC分类号： H04W74/0808 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0091 ,  H04L12/66 ,  H04L27/2605 ,  H04L29/06 ,  H04L69/08 ,  H04L69/24 ,  H04L69/324 ,  H04W52/383 ,  H04W72/0406 ,  H04W72/12 ,  H04W74/00 ,  H04W74/06 ,  H04W74/0816 ,  H04W84/12

摘要： Techniques for MAC processing for efficient use of high throughput systems that may be backward compatible with various types of legacy systems are disclosed. In one aspect, a data frame is formed comprising a common portion for transmission in a format receivable by various stations, such as access points and remote stations. The data frame also comprises a dedicated portion, formatted for transmission to a specified remote station. In another aspect, the common portion is unsteered, and the dedicated portion is steered. In another aspect, an access point schedules an allocation in response to a data indication included in a common portion of a data frame transmitted from one remote station to another. In another aspect, a first station transmits a reference to a second station, which measures the reference and generates feedback therefrom.

摘要翻译： 公开了用于有效利用可能与各种类型的传统系统向后兼容的高吞吐量系统的MAC处理技术。 在一个方面，形成数据帧，其包括用于以各种站点接收的格式（例如接入点和远程站）进行传输的公共部分。 数据帧还包括格式化用于传输到指定的远程站的专用部分。 在另一方面，公共部分是非导向的，并且专用部分被转向。 在另一方面，接入点响应于包括在从一个远程站发送到另一个远程站的数据帧的公共部分中的数据指示来调度分配。 在另一方面，第一站发送对第二站的参考，第二站测量参考并从其产生反馈。