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11.发明授权System and method for a media access control scheduler for a long term evolution unlicensed network environment 有权用于媒体访问控制调度器的系统和方法，用于长期演进的未授权网络环境公开(公告)号：US09516640B2
公开(公告)日：2016-12-06
申请号：US14450040
申请日：2014-08-01
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Rajesh S. Pazhyannur , Vikram Chandrasekhar , Ahmadreza Hedayat
CPC classification number: H04W72/042 , H04W16/14 , H04W72/0446 , H04W72/0453 , H04W72/1215 , H04W74/0816
Abstract: An example method is provided in one example embodiment and may determining, by a first communication device, whether one or more other communication devices are communicating wireless signals in a particular channel of an unlicensed band of the communication network; scheduling one or more Long Term Evolution Unlicensed (LTE-U) sub-frames within a frame schedule for a user equipment (UE) based, at least in part, on determining that one or more communication devices are communicating wireless signals in the particular channel; and communicating the one or more LTE-U sub-frames to the UE according to the frame schedule.
Abstract translation: 在一个示例实施例中提供了示例性方法，并且可以由第一通信设备确定一个或多个其他通信设备是否在通信网络的非许可频带的特定信道中传送无线信号; 至少部分地基于确定一个或多个通信设备在特定信道中传送无线信号来为用户设备（UE）在帧调度内调度一个或多个长期演进未许可（LTE-U）子帧 ; 以及根据所述帧调度向所述UE传送所述一个或多个LTE-U子帧。
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12.发明授权公开(公告)号：US09860852B2
公开(公告)日：2018-01-02
申请号：US14833519
申请日：2015-08-24
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Ritesh K. Madan , Rohit Umesh Nabar , Vikram Chandrasekhar , Kedar Durgadas Shirali , Qing Zhao
CPC classification number: H04W52/244 , H04B17/309 , H04W52/10 , H04W52/146 , H04W52/241 , H04W52/242 , 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.
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13.发明申请公开(公告)号：US20170289923A1
公开(公告)日：2017-10-05
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: H04W52/24 , H04B17/309 , H04W52/14
CPC classification number: H04W52/244 , H04B17/309 , H04W52/10 , H04W52/146 , H04W52/241 , H04W52/242 , 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.
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14.发明申请公开(公告)号：US20170111919A1
公开(公告)日：2017-04-20
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
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.
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公开(公告)号：US20170041885A1
公开(公告)日：2017-02-09
申请号：US14816990
申请日：2015-08-03
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Vikram Chandrasekhar , Ritesh K. Madan , Rohit Umesh Nabar , Kedar Durgadas Shirali
CPC classification number: H04W52/243 , H04W52/143 , H04W52/225 , H04W52/241 , H04W52/281 , H04W52/283 , H04W52/346
Abstract: An example method is provided in one example embodiment and includes receiving an indication of an average signal power for a downlink connection between a cell and each of a plurality of user equipment devices associated with the cell, receiving an indication of an average interference measurement on the downlink connection between the cell and each of the plurality of user equipment devices associated with the cell, and computing an average spectral efficiency for each of the plurality of user equipment devices based upon the respective average signal power and average interference measurement. The method further includes determining a transmission power level from among a plurality of available transmission power levels for one or more downlink resources for each of the plurality of user equipment devices based upon the computed average spectral efficiency for each of the plurality of user equipment devices.
Abstract translation: 在一个示例实施例中提供了示例性方法，并且包括：接收与小区相关联的小区与多个用户设备设备中的每一个之间的下行链路连接的平均信号功率的指示，接收关于小区的平均干扰测量的指示 所述小区与所述小区相关联的所述多个用户设备设备中的每一个之间的下行链路连接，以及基于所述相应的平均信号功率和平均干扰测量来计算所述多个用户设备设备中的每一个的平均频谱效率。 该方法还包括：基于所计算的多个用户设备设备中的每个用户设备设备的平均频谱效率，从多个用户设备设备中的每一个的一个或多个下行链路资源的多个可用发射功率电平中确定发射功率电平。
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Patent Agency Ranking
16.发明申请公开(公告)号：US20180288625A1
公开(公告)日：2018-10-04
申请号：US15991155
申请日：2018-05-29
Applicant: Cisco Technology, Inc.
Inventor： Vikram Chandrasekhar , Kedar Shirali , Qing Zhao , Rajesh Pazhyannur
CPC classification number: H04W16/14 , H04L1/1812 , H04L1/1896 , H04W74/0816
Abstract: A mobile device transmits data over a shared spectrum in an uplink channel to a base station in a contention-based access scheme. The mobile device obtains data to be wirelessly transmitted over the shared spectrum in the uplink channel to the 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 contends with other mobile device to gain access to the uplink channel. After gaining access to the uplink channel, the mobile device transmits the data over the shared spectrum in the uplink channel to the base station.
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公开(公告)号：US09967771B2
公开(公告)日：2018-05-08
申请号：US14933056
申请日：2015-11-05
Applicant: Cisco Technology, Inc.
Inventor： Rajesh Pazhyannur , Brian Hart , Andrew Myles , Vikram Chandrasekhar
CPC classification number: H04W28/04 , H04B17/318 , H04L43/16 , H04W16/14 , H04W72/044 , H04W74/0808 , H04W84/12
Abstract: Presented herein are mechanisms to reduce collisions in deployments with Wi-Fi and Shared Access LTE (SAC-LTE) equipment as well SAC-LTE equipment from multiple operators. The mechanisms enhance the baseline energy detection mechanism by incorporating methods to decode cross-technology physical layer elements and media access control (MAC) layer elements in the Wi-Fi system to elements in the SAC-LTE system. The methods described improve the detection potential for transmitters, thereby reducing chances of cross-technology collisions.
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公开(公告)号：US09854536B2
公开(公告)日：2017-12-26
申请号：US14816990
申请日：2015-08-03
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Vikram Chandrasekhar , Ritesh K. Madan , Rohit Umesh Nabar , Kedar Durgadas Shirali
CPC classification number: H04W52/243 , H04W52/143 , H04W52/225 , H04W52/241 , H04W52/281 , H04W52/283 , H04W52/346
Abstract: An example method is provided in one example embodiment and includes receiving an indication of an average signal power for a downlink connection between a cell and each of a plurality of user equipment devices associated with the cell, receiving an indication of an average interference measurement on the downlink connection between the cell and each of the plurality of user equipment devices associated with the cell, and computing an average spectral efficiency for each of the plurality of user equipment devices based upon the respective average signal power and average interference measurement. The method further includes determining a transmission power level from among a plurality of available transmission power levels for one or more downlink resources for each of the plurality of user equipment devices based upon the computed average spectral efficiency for each of the plurality of user equipment devices.
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19.发明授权公开(公告)号：US09839035B2
公开(公告)日：2017-12-05
申请号：US14691260
申请日：2015-04-20
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Ritesh K. Madan , Rohit Umesh Nabar , Vikram Chandrasekhar , Kedar Durgadas Shirali
CPC classification number: H04W72/0453 , H04W16/14 , H04W24/02 , H04W24/10 , H04W28/0236 , H04W28/16 , H04W72/082 , H04W72/1268
Abstract: A method is provided in one example embodiment and may include determining one or more uplink inter cell interference coordination (ICIC) parameters for a plurality of cells based, at least in part, on feedback information associated with the plurality of cells; exchanging interference information between neighboring cells; and scheduling uplink transmissions for user equipment served by the neighboring cells based, at least in part, on the uplink ICIC parameters and the interference information exchanged between neighboring cells. A method is provided in another example embodiment and may include determining a ratio relating a first portion of a frequency spectrum for assigning fractional frequency re-use resources to a second portion of the frequency spectrum for assigning re-use one resources; and updating the ratio relating the first portion and the second portion of the frequency spectrum to optimize throughput rates for the plurality of user equipment across the plurality of cells.
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20.发明授权公开(公告)号：US09820296B2
公开(公告)日：2017-11-14
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
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.
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