公开(公告)号：US09031020B2

公开(公告)日：2015-05-12

申请号：US13627429

申请日：2012-09-26

Applicant: Cisco Technology, Inc.

Inventor： Douglas Paul Kirchenbauer ,  Neil Robert Diener ,  Corey Metsker ,  Fred J. Anderson

IPC: H04W72/04 ,  H04W72/12 ,  H04W88/10

CPC classification number: H04W72/1215 ,  H04W88/10

Abstract: In an example embodiment, a wireless device, such as an access point, employs multiple radios that operate on the same or overlapping channels. For example, the wireless device can be upgraded with a new radio that is compatible with a newer protocol to provide service to newer clients that are capable of employing the new protocol, while also providing backwards compatibility to legacy clients.

Abstract translation: 在示例实施例中，诸如接入点的无线设备采用在相同或重叠的信道上操作的多个无线电设备。 例如，可以使用与较新协议兼容的新无线电来升级无线设备，以向能够使用新协议的较新客户端提供服务，同时还向传统客户端提供向后兼容性。

公开(公告)号：US20240224145A1

公开(公告)日：2024-07-04

申请号：US18602413

申请日：2024-03-12

Applicant: Cisco Technology, Inc.

Inventor： Fred J. Anderson ,  Shailender Potharaju ,  Indermeet Singh Gandhi ,  Clark Carty

IPC: H04W36/14 ,  H04W8/24 ,  H04W16/14 ,  H04W88/10

CPC classification number: H04W36/14 ,  H04W8/24 ,  H04W16/14 ,  H04W88/10

Abstract: System, methods, and computer-readable media for switching a dynamic radio of a single RU between Radio Access Technology (RAT) protocols based on a Software-Defined RAN intelligent controller (SD-RIC). The SD-RIC efficiently assigning RAN resources by converting a radio access point to either 5G or Wi-Fi based on the load conditions and the number of users seen on the network, so that it appropriately servers the customer and end devices. To determine the load conditions may be based on active users on a particular cell, and then the resource utilization cue is a connection latency. A single radio unit includes a primary radio and a secondary radio, each being independently tuned. The primary radio is static while a secondary one can be influenced based on the conditions, turning into N-RU or Wi-Fi.

公开(公告)号：US10735033B2

公开(公告)日：2020-08-04

申请号：US16171503

申请日：2018-10-26

Applicant: Cisco Technology, Inc.

Inventor： Fred J. Anderson ,  Paul J. Stager ,  John M. Blosco ,  Qing Zhao ,  David Kloper

IPC: H04B1/00 ,  H04B1/10

Abstract: A wireless communication device is built from a base module and a plurality of front-end modules. Each of the plurality of front-end modules is configured to operate a different one of a plurality of radio frequency services and having a front-end module connector configured to removeably mate with a base module connector of the base module. A particular front-end module is connected to the base module. Upon connection of the particular front-end module to the base module connector, the base module reads information from a memory of the particular front-end module to determine the radio service that the particular front-end module is configured to operate and to supply the control signals to configure and control front-end circuitry of the front-end module to operate the radio service.

公开(公告)号：US20200136657A1

公开(公告)日：2020-04-30

申请号：US16171503

申请日：2018-10-26

Applicant: Cisco Technology, Inc.

Inventor： Fred J. Anderson ,  Paul J. Stager ,  John M. Blosco ,  Qing Zhao ,  David Kloper

IPC: H04B1/00 ,  H04B1/10

Abstract: A wireless communication device is built from a base module and a plurality of front-end modules. Each of the plurality of front-end modules is configured to operate a different one of a plurality of radio frequency services and having a front-end module connector configured to removeably mate with a base module connector of the base module. A particular front-end module is connected to the base module. Upon connection of said particular front-end module to the base module connector, the base module reads information from a memory of said particular front-end module to determine the radio service that the particular front-end module is configured to operate and to supply the control signals to configure and control front-end circuitry of the front-end module to operate the radio service.

公开(公告)号：US10362538B2

公开(公告)日：2019-07-23

申请号：US15663467

申请日：2017-07-28

Applicant: Cisco Technology, Inc.

Inventor： Zhigang Gao ,  Paul J. Stager ,  Fred J. Anderson

IPC: H04W52/02 ,  H04L27/26 ,  H04W72/04 ,  H04W16/14 ,  H04L5/00 ,  H04W76/28

Abstract: Techniques are disclosed for generating 802.11 packets that simulate an 802.11ba Wake-Up Radio (WUR) packet by wireless access points (APs) that implement pre-802.11ba standards. According to one embodiment disclosed herein, a predefined bit stream including a plurality of data bits is evaluated. A data bit of the plurality is mapped to one of a plurality of subcarriers. A symbol is encoded in a data payload of a network packet based on the mapping of the data bit to the subcarrier. The symbol simulates an on-off key (OOK)-modulated symbol in a WUR sequence. The network packet is transmitted to a client device.

公开(公告)号：US10243665B2

公开(公告)日：2019-03-26

申请号：US15722083

申请日：2017-10-02

Applicant: Cisco Technology, Inc.

Inventor： Fred J. Anderson ,  Oscar Bejarano Chavez ,  Matthew A. Silverman ,  Paul J. Stager

IPC: H04B10/564 ,  H04W52/02 ,  H04B7/024 ,  H04B10/079

Abstract: Presented herein are techniques to ensure power emitted by APs during a cooperative MIMO transmission is within certain limits. For a transmission to be made from two or more wireless access points using cooperative multiple-input multiple-output (MIMO) techniques, a measure of separation is determined between the two or more access points. Precoding of signals to be transmitted by the two or more access points is adjusted so as to derate the signals to be transmitted or disable the cooperative nature of the transmission from the two or more access point depending on the measure of separation so that a combined output power from the two or more access points is within a limit.

公开(公告)号：US10148002B2

公开(公告)日：2018-12-04

申请号：US15297008

申请日：2016-10-18

Applicant: Cisco Technology, Inc.

Inventor： Erin P. McGough ,  Daniel N. Johnson ,  Thomas G. Lutman ,  Fred J. Anderson

IPC: H01Q21/00 ,  H01Q1/24 ,  H01Q7/00 ,  H01Q21/24 ,  H01Q9/04 ,  H01Q21/28 ,  H01Q1/52 ,  H01Q21/30 ,  H01Q1/22

Abstract: The embodiments herein use polarization diversity between antennas where the antennas for one cell are, e.g., horizontally polarized and antennas for the other cell are vertically polarized. In one embodiment, the antennas for a macro cell are vertically polarized while micro cell antennas are horizontally polarized. In one example, the micro cell antennas are printed antennas that form a loop that is co-planar with the magnetic fields generated by the macro cell antennas when transmitting. Because the magnetic fields are co-planar (rather than orthogonal) to the current flowing through the loop in the micro cell antenna, the effect of the electromagnetic signals emitted by the macro cell antenna is reduced. This may permit dual radio network devices to have improved performance when operating simultaneously—e.g., when the macro cell radio is transmitting and the micro cell radio is receiving at or near the same frequency band.

公开(公告)号：US20140086156A1

公开(公告)日：2014-03-27

申请号：US13627429

申请日：2012-09-26

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Douglas Paul KIRCHENBAUER ,  Neil Robert Diener ,  Corey Metsker ,  Fred J. Anderson

IPC: H04W72/04

CPC classification number: H04W72/1215 ,  H04W88/10

Abstract: In an example embodiment, a wireless device, such as an access point, employs multiple radios that operate on the same or overlapping channels. For example, the wireless device can be upgraded with a new radio that is compatible with a newer protocol to provide service to newer clients that are capable of employing the new protocol, while also providing backwards compatibility to legacy clients.

Abstract translation: 在示例实施例中，诸如接入点的无线设备使用在相同或重叠信道上操作的多个无线电设备。 例如，可以使用与较新协议兼容的新无线电来升级无线设备，以向能够使用新协议的较新客户端提供服务，同时还向传统客户端提供向后兼容性。