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：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。

公开(公告)号：US20050192037A1

公开(公告)日：2005-09-01

申请号：US11044539

申请日：2005-01-26

申请人： Sanjiv Nanda ,  Jay Walton

发明人： Sanjiv Nanda ,  Jay Walton

IPC分类号： H04B7/00 ,  H04L12/28 ,  H04L12/56

CPC分类号： H04W74/04 ,  H04W72/1231 ,  H04W72/1278 ,  H04W84/18

摘要： An ad hoc network with distributed hierarchical scheduling is disclosed. In one aspect, stations in a network mesh detect interfering neighbor stations and form interference lists. Stations transmit their interference lists. Scheduling stations schedule allocations for child stations in response to interference lists, received remote allocations, or a combination thereof. Coordination messages are transmitted including frame structure, allocations, and interference lists, among others. In another aspect, an ad hoc mesh network may be organized into a tree topology. In an example wireless backhaul network, this matches traffic flow. Distributed, hierarchical scheduling is provided where parents schedule communication with children while respecting already scheduled transmissions to/from interferers and to/from interferers of their respective children. Procedures to construct interference constraints for distributed, hierarchical scheduling are described, resulting in efficient scheduling and reuse in an ad hoc wireless network, without centralized scheduling. Various other aspects are also disclosed.

摘要翻译： 公开了一种具有分布式分层调度的自组织网络。 在一个方面，网络网络中的站检测干扰相邻站并形成干扰列表。 车站发送干扰列表。 调度站响应于干扰列表，接收的远程分配或其组合来调度子站的分配。 发送协调消息，包括帧结构，分配和干扰列表等。 在另一方面，可以将自组织网状网络组织成树形拓扑。 在无线回程网络的示例中，这匹配了流量。 提供了分布式的分层调度，其中父母调度与孩子的通信，同时尊重已经调度的传输到/来自干扰源和/或来自其相应子项的干扰。 描述了为分布式分层调度构建干扰约束的过程，从而在ad hoc无线网络中进行有效的调度和重用，而无需集中调度。 还公开了各种其它方面。

公开(公告)号：US20050135284A1

公开(公告)日：2005-06-23

申请号：US10964321

申请日：2004-10-13

申请人： Sanjiv Nanda ,  Arnaud Meylan ,  Jay Walton

发明人： Sanjiv Nanda ,  Arnaud Meylan ,  Jay Walton

IPC分类号： H04B7/005 ,  H04L12/56 ,  H04L29/06 ,  H04W52/38 ,  H04L12/403 ,  H04L5/14 ,  H04L12/42

CPC分类号： H04L29/06068 ,  H04L1/0025 ,  H04L1/0073 ,  H04L1/0078 ,  H04L1/0618 ,  H04L1/1621 ,  H04L1/1671 ,  H04L12/403 ,  H04L12/4633 ,  H04L29/06 ,  H04L69/08 ,  H04L69/24 ,  H04W28/04 ,  H04W28/06 ,  H04W48/08 ,  H04W52/383 ,  H04W74/06

摘要： Embodiments disclosed herein for MAC processing for efficient use of high throughput systems and that may be backward compatible with various types of legacy systems. In one aspect, a data transmission structure comprises a consolidated poll and one or more frames transmitted in accordance with the consolidated poll. In another aspect, a Time Division Duplexing (TDD) data transmission structure comprises a pilot, a consolidated poll, and zero or more access point to remote station frames in accordance with the consolidated poll. In one aspect, frames are transmitted sequentially with no or substantially reduced interframe spacing. In another aspect, a guard interframe spacing may be introduced between frames transmitted from different sources, or with substantially different power levels. In another aspect, a single preamble is transmitted in association with one or more frames. In another aspect, a block acknowledgement is transmitted subsequent to the transmission of one or more sequential frames.

摘要翻译： 本文公开的用于MAC处理的实施例用于高吞吐量系统的有效使用并且可以向后兼容各种类型的传统系统。 一方面，数据传输结构包括合并轮询和根据综合民意调查发送的一个或多个帧。 另一方面，根据综合民意调查，时分双工（TDD）数据传输结构包括导频，综合轮询以及到远程站帧的零个或多个接入点。 在一个方面，帧以没有或基本上减小的帧间间隔顺序传送。 在另一方面，可以在从不同源发送的帧之间或具有基本上不同的功率电平的情况下引入保护帧间间隔。 在另一方面，与一个或多个帧相关联地发送单个前同步码。 在另一方面，在发送一个或多个顺序帧之后发送块确认。

公开(公告)号：US20060227801A1

公开(公告)日：2006-10-12

申请号：US11088382

申请日：2005-03-23

申请人： Sanjiv Nanda ,  Jay Walton

发明人： Sanjiv Nanda ,  Jay Walton

IPC分类号： H04L12/413 ,  H04J3/02

CPC分类号： H04W72/04 ,  H04L47/15 ,  H04L47/70

摘要： An IBSS that allows token passing for round-robin service of QoS flows is disclosed (an RRBSS). The RRBSS permits low-latency, reduced contention, distributed scheduling useful in any ad hoc network, but particularly suitable for high data rates. Distributed scheduled access is provided for flows through a round-robin token passing service discipline. STAs follow a round-robin order, or list, and are able to communicate with round-robin transmit opportunities during a defined period. Each STA in the list transmits a respective token to transfer access to the shared medium to the next STA in the RR List. The sequence is terminated with an end token. STAs maintain station identifiers and list updates are maintained with a sequence identifier. Techniques are disclosed to add and remove STAs to the sequence;s establish connectivity lists (receive and forward), and maintain other sequence parameters such as bandwidth management and TXOP duration. Various other aspects are also disclosed.

摘要翻译： 公开了一种允许令牌通过QoS流的循环服务的IBSS（RRBSS）。 RRBSS允许低延迟，减少的争用，在任何自组织网络中有用的分布式调度，但特别适用于高数据速率。 通过循环令牌传递服务规则为流提供分布式调度访问。 STA按照循环顺序或列表进行操作，并能够在定义的时间段内与循环发送机会进行通信。 列表中的每个STA发送相应的令牌以将对共享介质的访问传送到RR列表中的下一个STA。 该序列以终止令牌终止。 STA维护站标识符，列表更新使用序列标识符进行维护。 披露技术来添加和删除STA的序列;建立连接列表（接收和转发），并保持其他序列参数，如带宽管理和TXOP持续时间。 还公开了各种其它方面。

公开(公告)号：US20060159003A1

公开(公告)日：2006-07-20

申请号：US11253358

申请日：2005-10-18

申请人： Sanjiv Nanda ,  Shravan Surineni ,  Jay Walton

发明人： Sanjiv Nanda ,  Shravan Surineni ,  Jay Walton

IPC分类号： H04J11/00

CPC分类号： H04W16/10 ,  H04W24/10 ,  H04W72/00

摘要： Embodiments for bandwidth allocation methods, detecting interference with other systems, and/or redeploying in alternate bandwidth are described. Higher bandwidth channels may be deployed at channel boundaries, which are a subset of those for lower bandwidth channels, and may be restricted from overlapping. Interference may be detected on primary, secondary, or a combination of channels, and may be detected in response to energy measurements of the various channels. When interference is detected, a higher bandwidth Basic Service Set (BSS) may be relocated to an alternate channel, or may have its bandwidth reduced to avoid interference. Interference may be detected based on energy measured on the primary or secondary channel, and/or a difference between the two. An FFT may be used in energy measurement in either or both of the primary and secondary channels. Stations may also monitor messages from alternate systems to make channel allocation decisions. Various other aspects are also presented.

摘要翻译： 描述带宽分配方法的实施例，检测与其他系统的干扰和/或以备用带宽重新部署。 较高带宽信道可以部署在信道边界，其是用于较低带宽信道的子集，并且可以被限制为重叠。 可以在主要，次要或信道的组合上检测干扰，并且可以响应于各种信道的能量测量来检测干扰。 当检测到干扰时，较高带宽的基本业务集（BSS）可以被重定位到备用信道，或者可以减少其带宽以避免干扰。 可以基于在主要或次要信道上测量的能量和/或两者之间的差异来检测干扰。 可以在主要和次要信道中的一个或两个中的能量测量中使用FFT。 站点还可以监视来自备用系统的消息以进行信道分配决定。 还提出了各种其他方面。

公开(公告)号：US20050135318A1

公开(公告)日：2005-06-23

申请号：US10964330

申请日：2004-10-13

申请人： Jay Walton ,  John Ketchum ,  Sanjiv Nanda

发明人： Jay Walton ,  John Ketchum ,  Sanjiv Nanda

IPC分类号： H04B7/005 ,  H04L12/66 ,  H04L29/06 ,  H04L12/56

CPC分类号： H04L12/66 ,  H04L29/06 ,  H04L69/08 ,  H04L69/24 ,  H04W52/383

摘要： Techniques for MAC processing for efficient use of high throughput systems that is backward compatible with various types of legacy systems are disclosed. In one aspect a first signal is transmitted according to a legacy transmission format to reserve a portion of a shared medium, and communication according to a second transmission format transpires during the reserved portion. In another aspect, a communication device may contend for access on a legacy system, and then communicate according to a new class communication protocol with one or more remote communication devices during the access period. In another aspect, a device may request access to a shared medium according to a legacy protocol, and, upon grant of access, the device may communicate with or facilitate communication between one or more remote stations according to a new protocol.

摘要翻译： 公开了用于有效利用与各种类型的遗留系统向后兼容的高吞吐量系统的MAC处理技术。 在一个方面，根据传统的传输格式传输第一信号以保留共享介质的一部分，并且在保留部分期间发送根据第二传输格式的通信。 在另一方面，通信设备可以竞争在遗留系统上进行访问，然后在访问周期期间根据新的类通信协议与一个或多个远程通信设备进行通信。 在另一方面，设备可以根据传统协议请求对共享介质的访问，并且在授权访问时，设备可以根据新协议与一个或多个远程站通信或促进一个或多个远程站之间的通信。

公开(公告)号：US20070010261A1

公开(公告)日：2007-01-11

申请号：US11240323

申请日：2005-09-30

申请人： Subrahmanyam Dravida ,  Jay Walton ,  Sanjiv Nanda ,  Shravan Surineni

发明人： Subrahmanyam Dravida ,  Jay Walton ,  Sanjiv Nanda ,  Shravan Surineni

IPC分类号： H04Q7/20

CPC分类号： G01S5/0009 ,  H04L12/5692 ,  H04L67/18 ,  H04L67/306 ,  H04W4/02 ,  H04W4/20 ,  H04W8/245 ,  H04W48/08 ,  H04W48/20 ,  H04W64/00 ,  H04W84/12 ,  H04W88/08

摘要： Embodiments describe methods, systems, and devices that utilize positional information to determine location of other device and/or to provide a location-based message. A method can include receiving a location information of a mobile device and using an access point to transmit location information to one or more other devices that do not include location functionality that are in communication with the mobile device. The method can further include transmitting a message to the mobile device based at least in part on the received access location information. In another embodiment, the method can include receiving a user preference data from the mobile device or one or more other devices and transmitting a communication to the mobile device or one or more other devices that conforms to the user preference data.

摘要翻译： 实施例描述利用位置信息来确定其他设备的位置和/或提供基于位置的消息的方法，系统和设备。 一种方法可以包括接收移动设备的位置信息并且使用接入点将位置信息发送到不包括与移动设备通信的位置功能的一个或多个其他设备。 该方法还可以包括至少部分地基于所接收的访问位置信息向移动设备发送消息。 在另一个实施例中，该方法可以包括从移动设备或一个或多个其他设备接收用户偏好数据，并向移动设备或符合用户偏好数据的一个或多个其他设备发送通信。

公开(公告)号：US20050135416A1

公开(公告)日：2005-06-23

申请号：US10964237

申请日：2004-10-13

申请人： John Ketchum ,  Jay Walton ,  Sanjiv Nanda

发明人： John Ketchum ,  Jay Walton ,  Sanjiv Nanda

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04L25/03 ,  H04L29/06 ,  H04L29/08 ,  H01L29/792

CPC分类号： H04W28/065 ,  H04L1/1635 ,  H04L25/03343 ,  H04L29/06 ,  H04L47/2441 ,  H04L69/16 ,  H04L69/161 ,  H04L69/22 ,  H04L69/32 ,  H04W80/02 ,  H04W84/12

摘要： Embodiments addressing MAC processing for efficient use of high throughput systems are disclosed. In one aspect, a protocol stack is disclosed comprising one or more of the following: an adaptation layer, a data link control layer, a physical layer, and a layer manager. In another aspect, physical layer feedback is used for adaptation layer processing. In one embodiment, physical layer feedback is used for segmentation. In another embodiment, physical layer feedback is used for multicast mapping onto one or more unicast channels. In another aspect, a data unit for transmission from a first station to a second station comprises zero or more complete sub-data units, zero or one partial sub-data units from a prior transmission, and zero or one partial sub-data units to fill the data unit. In one embodiment, a pointer may be used to indicate the location of any complete sub-data units.

摘要翻译： 公开了解决用于高吞吐量系统的有效使用的MAC处理的实施例。 一方面，公开了一种协议栈，其包括以下一个或多个：适配层，数据链路控制层，物理层和层管理器。 在另一方面，物理层反馈用于适应层处理。 在一个实施例中，物理层反馈用于分割。 在另一个实施例中，物理层反馈用于到一个或多个单播信道上的多播映射。 在另一方面，用于从第一站到第二站的传输的数据单元包括零个或多个完整的子数据单元，来自先前传输的零个或一个部分子数据单元，以及零个或一个部分子数据单元 填写数据单元。 在一个实施例中，可以使用指针来指示任何完整的子数据单元的位置。

公开(公告)号：US20050135403A1

公开(公告)日：2005-06-23

申请号：US10964332

申请日：2004-10-13

申请人： John Ketchum ,  Mark Wallace ,  Jay Walton ,  Sanjiv Nanda

发明人： John Ketchum ,  Mark Wallace ,  Jay Walton ,  Sanjiv Nanda

IPC分类号： H04L12/56 ,  H04L29/06 ,  H04L29/08

CPC分类号： H04L29/06 ,  H04L69/32 ,  H04L69/324 ,  H04L69/325

摘要： Embodiments addressing MAC processing for efficient use of high throughput systems are disclosed. In one aspect, an apparatus comprises a first layer for receiving one or more packets from one or more data flows and for generating one or more first layer Protocol Data Units (PDUs) from the one or more packets. In another aspect, a second layer is deployed for generating one or more MAC frames based on the one or more MAC layer PDUs. In another aspect, a MAC frame is deployed for transmitting one or more MAC layer PDUs. The MAC frame may comprise a control channel for transmitting one or more allocations. The MAC frame may comprise one or more traffic segments in accordance with allocations.

摘要翻译： 公开了解决用于高吞吐量系统的有效使用的MAC处理的实施例。 在一个方面，一种装置包括用于从一个或多个数据流接收一个或多个分组并用于从所述一个或多个分组生成一个或多个第一层协议数据单元（PDU）的第一层。 在另一方面，第二层被部署用于基于一个或多个MAC层PDU生成一个或多个MAC帧。 在另一方面，部署MAC帧以发送一个或多个MAC层PDU。 MAC帧可以包括用于发送一个或多个分配的控制信道。 MAC帧可以包括根据分配的一个或多个业务段。