MAC data service enhancements
    43.
    发明授权
    MAC data service enhancements 有权
    MAC数据服务增强

    公开(公告)号:US08700796B2

    公开(公告)日:2014-04-15

    申请号:US12983567

    申请日:2011-01-03

    IPC分类号: G06F15/16 G06F3/00

    摘要: Wireless video transmissions over a MAC layer employ various techniques to improve throughput which may negatively impact latency, such as Block-ACK and data aggregation. To improve latency while continuing to improve throughput, data packets are fenced according to application layer specifications and then transmitted. For video data, Block-ACK sequences and aggregation sequences are terminated at the end of video frames or video slices. For data aggregation, a physical layer data packet concludes at the end of a video frame or slice. The application layer can indicate to the MAC layer when such packet fencing is to occur. In use with 802.11n transmission a data flag may be used by the MAC layer to facilitate fencing.

    摘要翻译: MAC层上的无线视频传输采用各种技术来提高吞吐量,这可能会对等待时间造成负面影响,例如Block-ACK和数据聚合。 为了在持续提高吞吐量的同时提高延迟,数据包根据应用层规范进行围封,然后传输。 对于视频数据,Block-ACK序列和聚合序列在视频帧或视频片段结束时终止。 对于数据聚合,物理层数据分组在视频帧或分片结束时结束。 当发生这种分组防护时,应用层可以向MAC层指示。 在与802.11n传输一起使用时,MAC层可以使用数据标志来促进栅栏。

    APPARATUS, SYSTEMS, AND METHODS OF IP ADDRESS DISCOVERY FOR TUNNELED DIRECT LINK SETUP
    44.
    发明申请
    APPARATUS, SYSTEMS, AND METHODS OF IP ADDRESS DISCOVERY FOR TUNNELED DIRECT LINK SETUP 审中-公开
    用于隧道式直连链路建立的IP地址发现的设备,系统和方法

    公开(公告)号:US20130166759A1

    公开(公告)日:2013-06-27

    申请号:US13334240

    申请日:2011-12-22

    IPC分类号: G06F15/16

    摘要: A method of peer discovery in a communications network includes transmitting, by a first client station, a request to a second client station; receiving a response of the second client station, at least one of the request and the response including a local IP address of the corresponding client station; and establishing a tunneled direct link setup (TDLS)direct link between the first client station and the second client station based on the local IP address.

    摘要翻译: 在通信网络中的对等体发现的方法包括由第一客户端站向第二客户站发送请求; 接收所述第二客户站的响应,所述请求和所述响应中的至少一个包括所述相应客户站的本地IP地址; 并且基于本地IP地址在第一客户端站和第二客户端站之间建立隧道直接链路建立(TDLS)直接链路。

    Low power ultra wideband transceiver
    45.
    发明授权
    Low power ultra wideband transceiver 有权
    低功耗超宽带收发器

    公开(公告)号:US08102929B2

    公开(公告)日:2012-01-24

    申请号:US12369926

    申请日:2009-02-12

    IPC分类号: H04K1/10 H04L27/28

    摘要: Low-power transmitter and/or receiver devices are provided by sacrificing time and/or frequency diversity in exchange for lower power consumption. When channel conditions indicate that time and/or frequency spreading are unnecessary for transmissions, a transmitter may enter into a power-conservation mode in which transmissions are performed using a time gating scheme or a time repetition scheme. In the time gating scheme, symbols are transmitting just once, rather than a plurality of times, but with increased transmission power. In the time repetition scheme, copies of the same symbol are transmitted a plurality of times on the same frequency on different symbol transmission periods, instead of being retransmitted on different frequencies on different symbol transmission periods. Consequently, the symbol can be generated once and stored for subsequent retransmission, thereby allowing some of the transmitter/receiver chain components can be operated at a lower duty cycle or processing speed to conserve power.

    摘要翻译: 通过牺牲时间和/或频率分集来提供低功率发射机和/或接收机设备,以换取更低的功耗。 当信道条件指示时间和/或频率扩展对于传输是不必要的时,发射机可以进入其中使用时间选通方案或时间重复方案执行传输的功率节约模式。 在时间选通方案中,符号只传输一次,而不是多次,但是传输功率增加。 在时间重复方案中,相同符号的副本在不同的符号传输周期上以相同频率发送多次,而不是在不同的符号传输周期上在不同的频率上重发。 因此,可以生成符号一次并存储以用于随后的重传,从而允许一些发送器/接收器链组件可以以较低的占空比或处理速度操作以节省功率。

    SYSTEM AND METHOD OF TRANSMITTING AND RECEIVING DATA FRAMES
    47.
    发明申请
    SYSTEM AND METHOD OF TRANSMITTING AND RECEIVING DATA FRAMES 有权
    发送和接收数据帧的系统和方法

    公开(公告)号:US20100246543A1

    公开(公告)日:2010-09-30

    申请号:US12413120

    申请日:2009-03-27

    IPC分类号: H04L12/28 H04W84/12

    摘要: A method of transmitting a data frame is disclosed and may include transmitting a preamble, transmitting a physical layer convergence protocol (PLCP) header, and transmitting a plurality of MAC protocol data units (MPDUs). Each MPDU may be configured to reset a convolutional decoder state after each MPDU. The method may also include transmitting an MPDU aggregation header. The MPDU aggregation header may include a count of packed MPDUs, an array of offsets, an array of lengths, a frame check sequence (FCS) for the MPDU aggregation header, a group of tail bits, or a combination thereof. Further, an end of the MPDU aggregation header may be aligned to an interleaved symbol boundary.

    摘要翻译: 公开了发送数据帧的方法,并且可以包括发送前同步码,发送物理层汇聚协议(PLCP)报头,以及发送多个MAC协议数据单元(MPDU)。 每个MPDU可被配置为在每个MPDU之后复位卷积解码器状态。 该方法还可以包括发送MPDU聚合报头。 MPDU聚合报头可以包括打包的MPDU的计数,偏移的数组,长度的数组,用于MPDU聚合报头的帧校验序列(FCS),一组尾比特或它们的组合。 此外,MPDU聚合报头的结束可以与交织的符号边界对齐。

    APPARATUS AND METHOD FOR CHANNEL RESERVATION IN WIRELESS COMMUNICATION SYSTEMS
    48.
    发明申请
    APPARATUS AND METHOD FOR CHANNEL RESERVATION IN WIRELESS COMMUNICATION SYSTEMS 有权
    无线通信系统中信道预留的设备及方法

    公开(公告)号:US20090040984A1

    公开(公告)日:2009-02-12

    申请号:US11869675

    申请日:2007-10-09

    申请人: Krishnan Rajamani

    发明人: Krishnan Rajamani

    IPC分类号: H04J3/00

    摘要: An exemplary method for reserving medium access in an ad hoc network comprises transmitting a reservation request by a reservation owner, the reservation request identifying a reservation allocation, a reservation target, and a reservation type. The reservation type identifies exclusive use of the reservation allocation by the reservation owner and the reservation target during a reservation period. The reservation target may employ a prioritized contention access (PCA) scheme to access the reservation allocation. Alternatively, an idle portion of the reservation allocation may be subdivided into a plurality of slots including even slots and odd slots, and the reservation owner gains access to the idle portion by starting to transmit during an even slot, while the reservation target gains access to the idle portion by starting to transmit during an odd slot. In yet another embodiment, the reservation owner transmits an outgoing clear to send (CTS) communication to the reservation target to transfer ownership of the reservation allocation to the reservation target, and receives an incoming clear to send (CTS) communication from the reservation target to regain ownership of the reservation allocation.

    摘要翻译: 用于在自组织网络中保留媒体接入的示例性方法包括:由预留所有者发送预留请求,所述预留请求标识预约分配,预约目标和预约类型。 预留类型在预约期间识别预约所有者和预约目标的预留分配的独占使用。 预留目标可以采用优先级争用接入(PCA)方案来访问预留分配。 或者,预留分配的空闲部分可以被细分为包括偶数时隙和奇数时隙的多个时隙,并且预留所有者通过在偶数时隙期间开始发送来获得对空闲部分的访问,而预留目标获得对 空闲部分通过在奇数时隙期间开始发送。 在另一个实施例中,预约所有者向预约目的地发送传出清除发送(CTS)通信,以将预约分配的所有权转移到预约目标,并且从预约目标接收到来往清除发送(CTS)通信到 重新获得预留分配的所有权。

    System including real-time data communication features
    49.
    发明授权
    System including real-time data communication features 失效
    系统包括实时数据通信功能

    公开(公告)号:US07099961B2

    公开(公告)日:2006-08-29

    申请号:US11036895

    申请日:2005-01-14

    IPC分类号: G06F13/28

    CPC分类号: G06F13/28 Y02D10/14

    摘要: In an embodiment of the invention, a system includes a direct memory access (DMA) engine to move data on a real time basis and a communication front-end to transmit and receive the data. In another embodiment, the system may also include a medium access control (MAC) to control transmission and reception of the data and that may be partitioned or divided according to response times to carry out selected functions. Other embodiments of the invention are described and claimed.

    摘要翻译: 在本发明的一个实施例中,系统包括直接存储器访问(DMA)引擎,用于实时地移动数据和通信前端以发送和接收数据。 在另一个实施例中,系统还可以包括用于控制数据的传输和接收的介质访问控制(MAC),并且可以根据响应时间进行分区或划分以执行所选择的功能。 描述和要求保护本发明的其它实施例。

    System including real-time data communication features
    50.
    发明申请
    System including real-time data communication features 失效
    系统包括实时数据通信功能

    公开(公告)号:US20050182865A1

    公开(公告)日:2005-08-18

    申请号:US11036895

    申请日:2005-01-14

    IPC分类号: G06F13/28

    CPC分类号: G06F13/28 Y02D10/14

    摘要: A system includes a direct memory access (DMA) engine to move data on a real time basis and a communication front-end to transmit and receive the data. In another embodiment, the system may also include a medium access control (MAC) to control transmission and reception of the data and that may be partitioned or divided according to response times to carry out selected functions.

    摘要翻译: 系统包括直接存储器访问(DMA)引擎,以实时地移动数据和通信前端来发送和接收数据。 在另一个实施例中,系统还可以包括用于控制数据的传输和接收的介质访问控制(MAC),并且可以根据响应时间进行分区或划分以执行所选择的功能。