公开(公告)号：US10159048B2

公开(公告)日：2018-12-18

申请号：US15626110

申请日：2017-06-17

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Ritesh K. Madan ,  Rohit Umesh Nabar ,  Vikram Chandrasekhar ,  Kedar Durgadas Shirali ,  Qing Zhao

IPC: H04B15/00 ,  H04W52/24 ,  H04W52/14 ,  H04B17/309 ,  H04W52/10 ,  H04W84/18

Abstract: A method is provided in one example embodiment and may include calculating, by one or more of a plurality of small cell radios, one or more sets of candidate power control parameters using a first interference constraint for uplink user equipment (UE) transmissions for UE served by the one or more of the plurality of small cell radios; determining, at a central management entity, whether an average of a sum of an expected interference for UE associated with the plurality of small cell radios violates a second interference constraint for any of the one or more sets of candidate power control parameters; and generating one or more messages for each of the plurality of small cell radios identifying one or more particular sets of power control parameters that provide for meeting the second interference constraint.

公开(公告)号：US09648569B2

公开(公告)日：2017-05-09

申请号：US14809201

申请日：2015-07-25

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Ritesh K. Madan ,  Rohit Umesh Nabar ,  Vikram Chandrasekhar ,  Kedar Durgadas Shirali ,  Qing Zhao

IPC: H04B7/00 ,  H04W52/24 ,  H04W52/14

CPC classification number: H04W52/244 ,  H04W52/146 ,  H04W52/241 ,  H04W52/242 ,  H04W52/243

Abstract: A method is provided in one example embodiment and may include calculating, by one or more of a plurality of small cell radios, one or more sets of candidate power control parameters using a first interference constraint for uplink user equipment (UE) transmissions for UE served by the one or more of the plurality of small cell radios; determining, at a central management entity, whether an average of a sum of an expected interference for UE associated with the plurality of small cell radios violates a second interference constraint for any of the one or more sets of candidate power control parameters; and generating one or more messages for each of the plurality of small cell radios identifying one or more particular sets of power control parameters that provide for meeting the second interference constraint.

公开(公告)号：US20170111926A1

公开(公告)日：2017-04-20

申请号：US14918420

申请日：2015-10-20

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Ritesh K. Madan ,  Vikram Chandrasekhar ,  Rohit Umesh Nabar ,  Kedar Durgadas Shirali ,  Qing Zhao

IPC: H04W72/12 ,  H04W72/08 ,  H04W16/32 ,  H04W72/04

CPC classification number: H04W72/1273 ,  H04L5/0035 ,  H04L5/0073 ,  H04W16/32 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/082 ,  H04W72/1226 ,  H04W72/1231 ,  H04W72/1289

Abstract: An example method is provided in one example embodiment and includes receiving performance metric information from a plurality of small cell radios, wherein the performance metric information includes, at least in part, a number of user equipment that are to be scheduled on a first type and a second type of subframes for each small cell radio; determining resource allocation parameters for the plurality of small cell radios; exchanging interference information between two or more small cell radios of the plurality of small cell radios that includes an indication of whether a particular small cell radio is interfering with or is interfered by another small cell radio of the two or more small cell radios; and scheduling downlink resource transmissions on the first type and the second type of subframes for user equipment served by the two or more small cell radios.

公开(公告)号：US20170041805A1

公开(公告)日：2017-02-09

申请号：US15227099

申请日：2016-08-03

Applicant: Cisco Technology, Inc.

Inventor： Vikram Chandrasekhar ,  Kedar Shirali ,  Qing Zhao ,  Rajesh Pazhyannur

IPC: H04W16/14 ,  H04L1/18 ,  H04W72/04

CPC classification number: H04W16/14 ,  H04L1/1812 ,  H04L1/1896 ,  H04W74/0816

Abstract: A mobile device obtains data to be wirelessly transmitted over a shared spectrum in an uplink channel to a base station. The uplink channel is formatted with a frame/subframe structure with a predetermined timing. The mobile device determines whether the shared spectrum is free for transmission according to a Listen Before Transmit procedure. When the shared spectrum is free for transmission, the mobile device selects a start time in the uplink channel that mitigates interference from other mobile devices in proximity to the mobile device. Beginning at the start time, the mobile device transmits the data over the shared spectrum in the uplink channel to the base station.

Abstract translation: 移动设备获取在上行链路信道中通过共享频谱无线发送的数据到基站。 上行链路信道用预定定时的帧/子帧结构格式化。 移动设备根据“在侦听之前”过程确定共享频谱是否可用于传输。 当共享频谱不需要传输时，移动设备选择上行链路信道中的起始时间，以减轻来自移动设备附近的其他移动设备的干扰。 从开始时开始，移动设备通过上行链路信道中的共享频谱将数据发送到基站。

公开(公告)号：US20170026914A1

公开(公告)日：2017-01-26

申请号：US14809201

申请日：2015-07-25

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Ritesh K. Madan ,  Rohit Umesh Nabar ,  Vikram Chandrasekhar ,  Kedar Durgadas Shirali ,  Qing Zhao

IPC: H04W52/24 ,  H04W52/14

CPC classification number: H04W52/244 ,  H04W52/146 ,  H04W52/241 ,  H04W52/242 ,  H04W52/243

Abstract: A method is provided in one example embodiment and may include calculating, by one or more of a plurality of small cell radios, one or more sets of candidate power control parameters using a first interference constraint for uplink user equipment (UE) transmissions for UE served by the one or more of the plurality of small cell radios; determining, at a central management entity, whether an average of a sum of an expected interference for UE associated with the plurality of small cell radios violates a second interference constraint for any of the one or more sets of candidate power control parameters; and generating one or more messages for each of the plurality of small cell radios identifying one or more particular sets of power control parameters that provide for meeting the second interference constraint.

公开(公告)号：US12160933B2

公开(公告)日：2024-12-03

申请号：US18460403

申请日：2023-09-01

Applicant: Cisco Technology, Inc.

Inventor： Fred J. Anderson ,  Anand Oswal ,  Rajesh S. Pazhyannur ,  Arun G. Khanna ,  Paul Jeffrey Stager ,  David Stuart Kloper ,  Brian Hart ,  Qing Zhao ,  Jie Cheng Jiang

IPC: H04W88/10 ,  H04W72/0453 ,  H04W84/04 ,  H04W84/12

Abstract: Systems, methods, and computer-readable media for an integrated Wi-Fi Access Point and cellular network Radio Unit (RU) include a communication system interfacing with a wired network for communicating Wi-Fi traffic and cellular network traffic, the communication system integrating a Wi-Fi Access Point (AP) with a cellular network Radio Unit (RU). The Wi-Fi traffic and cellular network traffic can be processed in the communication system. The communication system can interface with at least one programmable Radio Frequency (RF) front end configured for wireless communication over one or more frequency bands for Wi-Fi traffic and one or more frequency bands for cellular network traffic (e.g., 5G, LTE, Wi-Fi).

公开(公告)号：US20200077425A1

公开(公告)日：2020-03-05

申请号：US16115506

申请日：2018-08-28

Applicant: Cisco Technology, Inc.

Inventor： Matthew Aaron Silverman ,  Qing Zhao ,  John T. Chapman ,  Dantong Liu

IPC: H04W72/12 ,  H04W72/14 ,  G06F15/18

Abstract: Systems, methods, and computer-readable media for coordinating scheduling between a wireless scheduler and a backhaul scheduler to reduce uplink data transmission latency. In some examples, an uplink data prediction for uplink data to transmit over a wireless connection of a wireless network is identified by a wireless scheduler of a wireless network. The uplink data prediction can be provided to a backhaul scheduler of a backhaul of the wireless network. The wireless scheduler can be coordinated with the backhaul scheduler by the backhaul scheduler to coordinate transmission of the uplink data through the backhaul based on the uplink data prediction. The uplink data can then be received at the backhaul for transmission through the backhaul based on the uplink data prediction.

公开(公告)号：US10028151B2

公开(公告)日：2018-07-17

申请号：US15227099

申请日：2016-08-03

Applicant: Cisco Technology, Inc.

Inventor： Vikram Chandrasekhar ,  Kedar Shirali ,  Qing Zhao ,  Rajesh Pazhyannur

IPC: H04W72/00 ,  H04W16/14 ,  H04W74/08 ,  H04L1/18

Abstract: A mobile device obtains data to be wirelessly transmitted over a shared spectrum in an uplink channel to a base station. The uplink channel is formatted with a frame/subframe structure with a predetermined timing. The mobile device determines whether the shared spectrum is free for transmission according to a Listen Before Transmit procedure. When the shared spectrum is free for transmission, the mobile device selects a start time in the uplink channel that mitigates interference from other mobile devices in proximity to the mobile device. Beginning at the start time, the mobile device transmits the data over the shared spectrum in the uplink channel to the base station.

公开(公告)号：US09826545B2

公开(公告)日：2017-11-21

申请号：US14951987

申请日：2015-11-25

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Ritesh K. Madan ,  Vikram Chandrasekhar ,  Rohit Umesh Nabar ,  Kedar Durgadas Shirali ,  Qing Zhao

IPC: H04J3/00 ,  H04W72/12 ,  H04W72/04 ,  H04W72/08 ,  H04W16/32 ,  H04L5/00

CPC classification number: H04W72/1273 ,  H04L5/0035 ,  H04L5/0073 ,  H04W16/32 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/082 ,  H04W72/1226 ,  H04W72/1231 ,  H04W72/1289

Abstract: An example method is provided in one example embodiment and includes receiving performance metric information from a plurality of small cell radios, wherein the performance metric information includes, at least in part, a number of user equipment that are to be scheduled on a first type and a second type of subframes for each small cell radio; determining resource allocation parameters for the plurality of small cell radios; exchanging interference information between two or more small cell radios of the plurality of small cell radios that includes an indication of whether a particular small cell radio is interfering with or is interfered by another small cell radio of the two or more small cell radios; and scheduling downlink resource transmissions on the first type and the second type of subframes for user equipment served by the two or more small cell radios.

公开(公告)号：US09756654B2

公开(公告)日：2017-09-05

申请号：US14925750

申请日：2015-10-28

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Vikram Chandrasekhar ,  Kedar D. Shirali ,  Ritesh K. Madan ,  Qing Zhao ,  Sushanth Chandappa Kulal

IPC: H04W28/02 ,  H04W72/12

CPC classification number: H04W72/1289 ,  H04L47/26 ,  H04W28/0278 ,  H04W72/1247 ,  H04W72/1252

Abstract: Embodiments include starting a first timer if a queue state associated with a user equipment (UE) is estimated to equal zero bytes of data and if a last buffer status report received from the UE indicated the queue state to be greater than zero bytes of data, sending a control message granting uplink resources to the UE if the first timer expires, and determining the queue state associated with the UE based, at least in part, on a response to the control message. In specific embodiments the first timer expires if neither a scheduling request nor a buffer status report is received during a first timer interval after the first timer is started. Further embodiments include stopping the first timer if a scheduling request or a buffer status report is received before the first timer expires.