公开(公告)号：US09236928B1

公开(公告)日：2016-01-12

申请号：US14082666

申请日：2013-11-18

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Ozgur Gurbuz ,  David Pignatelli ,  David Stephenson ,  Eldad Perahia ,  Bretton Douglas ,  Ender Ayanoglu

IPC: H04B7/08 ,  H04B7/06 ,  H04W28/18 ,  H04B7/04 ,  H04W28/22 ,  H04W84/12

CPC classification number: H04B7/0689 ,  H04B7/0413 ,  H04B7/0628 ,  H04B7/0871 ,  H04W28/22 ,  H04W84/12

Abstract: An apparatus and method for operating a Multiple Input Multiple Output (MIMO)-capable subscriber node are disclosed. In one embodiment, an apparatus includes a MIMO-capable physical layer transceiver and a Medium Access Control (MAC) layer block that measures a received transmission to determine channel conditions. Upon receiving a transmission wherein said channel conditions meet specified conditions, the MAC layer block transmits a message to an access point indicating that the apparatus wants to switch between a non-MIMO mode and a MIMO mode, and upon receiving an acknowledgement, the MAC layer block switches between the non-MIMO mode and the MIMO mode. An apparatus for operating an access node is also disclosed.

Abstract translation: 公开了一种用于操作多输入多输出（MIMO）能力的用户节点的装置和方法。 在一个实施例中，一种装置包括MIMO能力的物理层收发机和媒体接入控制（MAC）层块，其测量接收到的传输以确定信道状况。 在接收到所述信道条件满足指定条件的传输时，MAC层块向接入点发送指示设备在非MIMO模式和MIMO模式之间切换的消息，并且在接收到确认时，MAC层 在非MIMO模式和MIMO模式之间进行块切换。 还公开了一种用于操作接入节点的装置。

公开(公告)号：US10515391B2

公开(公告)日：2019-12-24

申请号：US14034819

申请日：2013-09-24

Applicant: Cisco Technology, Inc.

Inventor： David Stephenson ,  Esteban Raul Torres ,  Joseph Salowey ,  Chetin Ersoy ,  Nancy Cam-Winget

IPC: G06Q30/02 ,  H04W4/21 ,  H04W4/23 ,  H04L29/06 ,  H04W12/12 ,  H04W48/14 ,  H04W12/10

Abstract: In an example embodiment, an apparatus comprising a transceiver configured to send and receive data and logic coupled to the transceiver. The logic is configured to determine from a signal received by the transceiver whether an associated device sending the signal supports a protocol for advertising available services. The logic is configured to send a request for available services from the associated device via the transceiver responsive to determining the associated device supports the protocol. The logic is configured to receive a response to the request via the transceiver, the response comprising at least one service advertisement and a signature. The logic is configured to validate the response by confirming the signature.

公开(公告)号：US20140122242A1

公开(公告)日：2014-05-01

申请号：US14034819

申请日：2013-09-24

Applicant: Cisco Technology, Inc.

Inventor： David Stephenson ,  Esteban Raul Torres ,  Joseph Salowey ,  Chetin Ersoy ,  Nancy Cam-Winget

IPC: G06Q30/02

CPC classification number: G06Q30/0267 ,  G06Q30/0241 ,  H04L63/0823 ,  H04L63/12 ,  H04L63/1441 ,  H04W4/21 ,  H04W4/23 ,  H04W12/10 ,  H04W12/12 ,  H04W48/14

Abstract: In an example embodiment, an apparatus comprising a transceiver configured to send and receive data and logic coupled to the transceiver. The logic is configured to determine from a signal received by the transceiver whether an associated device sending the signal supports a protocol for advertising available services. The logic is configured to send a request for available services from the associated device via the transceiver responsive to determining the associated device supports the protocol. The logic is configured to receive a response to the request via the transceiver, the response comprising at least one service advertisement and a signature. The logic is configured to validate the response by confirming the signature.

Abstract translation: 在示例实施例中，一种包括收发器的装置，其被配置为发送和接收耦合到收发器的数据和逻辑。 该逻辑被配置为根据收发机接收的信号确定发送信号的相关设备是否支持用于广告可用服务的协议。 逻辑被配置为响应于确定相关联的设备支持协议，经由收发机从相关联的设备发送可用服务的请求。 逻辑被配置为经由收发器接收对请求的响应，该响应包括至少一个服务广告和签名。 该逻辑被配置为通过确认签名来验证响应。

公开(公告)号：US09131029B1

公开(公告)日：2015-09-08

申请号：US14246330

申请日：2014-04-07

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Eldad Perahia ,  Bretton Douglas ,  David Pignatelli ,  David Stephenson

IPC: H04L27/28 ,  H04L29/06 ,  H04W72/04

CPC classification number: H04L65/601 ,  H04B7/0413 ,  H04B7/10 ,  H04L1/0083 ,  H04L1/1607 ,  H04L1/1854 ,  H04L2001/0093 ,  H04W16/28 ,  H04W52/04 ,  H04W72/0406 ,  H04W88/10

Abstract: Multiple Input Multiple Output (MIMO) technology in conjunction with the IEEE 802.11 standard enables simultaneous communication of data packets to or from multiple users in the same frequency. Spatial divisional multiple access (SDMA) is thus provided. In this way, system capacity can be increased to an extent that depends on available antenna resources and the multipath characteristics of the communication channel. Doubling or quadrupling of network throughput can be achieved.

Abstract translation: 结合IEEE 802.11标准的多输入多输出（MIMO）技术可以实现与同一频率的多个用户的数据包同时通信。 因此提供了空分多址（SDMA）。 以这种方式，可以将系统容量增加到取决于可用天线资源和通信信道的多径特性的程度。 可以实现网络吞吐量的两倍或四倍。