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公开(公告)号：US10154415B2
公开(公告)日：2018-12-11
申请号：US14818084
申请日：2015-08-04
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Ritesh K. Madan , Rohit Umesh Nabar , Vikram Chandrasekhar , Kedar Durgadas Shirali
Abstract: An example method is provided in one example embodiment and includes receiving at least one performance metric from each of a plurality of cells, the at least performance metric associated with a downlink transmission from the cell to one or more user equipment devices associated with the cell. The method further includes determining a fraction of resources for allocation within a fractional frequency reuse portion of a frequency spectrum based upon the received at least one performance metric, and determining a fraction of the resources for allocation within a reuse one portion of the frequency spectrum based upon the determined fraction of resources for allocation within the fractional frequency reuse portion of the frequency spectrum.
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公开(公告)号：US10143002B2
公开(公告)日：2018-11-27
申请号：US14993859
申请日：2016-01-12
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Ritesh K. Madan , Rohit Umesh Nabar
IPC: H04W72/12 , H04W28/16 , H04L12/875 , H04L12/863 , H04L12/825
Abstract: A method is provided in one example embodiment and includes generating feedback information at a first remote access point (AP), wherein the feedback information is associated with one or more user equipment served by the first remote AP; determining constraints for the first remote AP at a central controller based on the feedback information received from the first remote AP and feedback information received from one or more other remote APs that neighbor the first remote AP, wherein the constraints are determined for a plurality of transmission time intervals (TTIs); and scheduling resource blocks (RBs) for the one or more user equipment served by the first remote AP for one or more of the plurality of TTIs based, at least in part, on constraints received from the central controller.
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33.发明授权公开(公告)号：US09918314B2
公开(公告)日：2018-03-13
申请号：US14686598
申请日：2015-04-14
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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公开(公告)号：US20170155471A1
公开(公告)日：2017-06-01
申请号：US15429016
申请日：2017-02-09
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Ritesh Kumar Madan , Rohit Umesh Nabar , Vikram Chandrasekhar
IPC: H04L1/00 , H04W52/14 , H04B17/336
Abstract: The present disclosure provides a fine-grained link adaptation mechanism that allows for link adaptation at a resource block granularity. To this end, the fine-grained link adaptation mechanism can determine the effective signal-to-interference-plus-noise ratio for individual user equipment in a particular cell at the resource block granularity. This way, the transmitter can use the effective signal-to-interference-plus-noise ratio to adapt the modulation and coding scheme at the resource block granularity. The fine-grained link adaptation mechanism can be introduced to a long term evolution (LTE) network without substantial redesign of the LTE network.
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Patent Agency Ranking
35.发明授权公开(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
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.
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36.发明申请公开(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
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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37.发明申请RESOURCE ADAPTATION FOR FREQUENCY DOMAIN DOWNLINK INTER-CELL INTERFERENCE COORDINATION 审中-公开资源适应频域下行链路细胞间干扰协调公开(公告)号：US20170041939A1
公开(公告)日：2017-02-09
申请号：US14818084
申请日：2015-08-04
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Ritesh K. Madan , Rohit Umesh Nabar , Vikram Chandrasekhar , Kedar Durgadas Shirali
IPC: H04W72/08
CPC classification number: H04W16/10
Abstract: An example method is provided in one example embodiment and includes receiving at least one performance metric from each of a plurality of cells, the at least performance metric associated with a downlink transmission from the cell to one or more user equipment devices associated with the cell. The method further includes determining a fraction of resources for allocation within a fractional frequency reuse portion of a frequency spectrum based upon the received at least one performance metric, and determining a fraction of the resources for allocation within a reuse one portion of the frequency spectrum based upon the determined fraction of resources for allocation within the fractional frequency reuse portion of the frequency spectrum.
Abstract translation: 在一个示例实施例中提供了示例性方法，并且包括从多个小区中的每一个接收至少一个性能度量，所述至少一个性能度量与从所述小区到与所述小区相关联的一个或多个用户设备设备的下行链路传输相关联。 该方法还包括基于所接收的至少一个性能度量来确定在频谱的分数频率重用部分内的用于分配的资源的一部分，以及在基于频谱的重用一部分中确定用于分配的资源的一部分 在频谱的分数频率重用部分中确定的用于分配的资源分数。
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公开(公告)号：US20170041938A1
公开(公告)日：2017-02-09
申请号：US14816957
申请日：2015-08-03
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Rohit Umesh Nabar , Ritesh K. Madan
CPC classification number: H04W52/04 , H04W16/10 , H04W52/143 , H04W52/225 , H04W52/244 , H04W52/247 , H04W72/042 , H04W72/0453 , H04W72/082
Abstract: An example method is provided in one example embodiment and includes receiving a first message indicative of whether a first cell is non-interfering to at least one neighboring cell, determining whether the first cell is non-interfering to the at least one neighboring cell based upon the first message, and responsive to a determination that the first cell is not non-interfering to the at least one neighboring cells, reducing a power level of one or more downlink resources of a fractional frequency reuse portion of a frequency spectrum associated with the first cell.
Abstract translation: 在一个示例性实施例中提供了示例性方法，并且包括：接收指示第一小区是否对至少一个相邻小区不干扰的第一消息，基于所述第一小区是否对所述至少一个相邻小区不干扰 所述第一消息，并且响应于所述第一小区对所述至少一个相邻小区不是不干扰的确定，降低与所述第一小区相关联的频谱的分数次频率重用部分中的一个或多个下行链路资源的功率电平 细胞。
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39.发明申请公开(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
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.
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