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公开(公告)号：US09848389B2
公开(公告)日：2017-12-19
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.
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2.发明授权公开(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
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：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
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.
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4.发明申请公开(公告)号：US20170202005A1
公开(公告)日：2017-07-13
申请号：US14993859
申请日：2016-01-12
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Ritesh K. Madan , Rohit Umesh Nabar
CPC classification number: H04W72/1231 , H04L47/26 , H04L47/56 , H04L47/6255 , H04W28/16
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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5.发明申请SERVING NOISE/MACRO INTERFERENCE LIMITED USER EQUIPMENT FOR DOWNLINK INTER-CELL INTERFERENCE COORDINATION 有权服务噪音/宏观干扰有限公司用户设备用于下行链路细胞间干扰协调公开(公告)号：US20170070323A1
公开(公告)日：2017-03-09
申请号：US14848026
申请日：2015-09-08
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Ritesh K. Madan , Rohit Umesh Nabar
CPC classification number: H04L5/0037 , H04B1/10 , H04J11/005 , H04L5/0032 , H04L5/0073 , H04W52/04 , H04W52/143 , H04W52/243
Abstract: An example method is provided in one example embodiment and includes receiving feedback information from at least one controlled cell indicative of interference received at one or more user equipment devices served by the at least one cell. The at least one controlled cell is controlled by an operator associated with the at least one controlled cell. The method further includes selecting one or more user equipment devices that is determined to have received interference from at least one non-controlled cell that is greater than a predetermined threshold. The at least one non-controlled cell is not controlled by the operator associated with the at least one controlled cell. The method still further includes determining a power level for a subset of common resources from among a set of common resources shared among the at least one controlled cell based upon the received feedback information.
Abstract translation: 在一个示例性实施例中提供了示例性方法，并且包括从至少一个受控单元接收指示在由至少一个小区服务的一个或多个用户设备设备处接收的干扰的反馈信息。 所述至少一个受控细胞由与所述至少一个受控细胞相关联的操作者控制。 该方法还包括选择一个或多个被确定已从至少一个非受控小区接收到大于预定阈值的非受控小区的干扰的用户设备设备。 所述至少一个非受控细胞不由与所述至少一个受控细胞相关联的操作者控制。 该方法还包括：基于接收到的反馈信息，从至少一个受控小区之间共享的一组共同资源中确定公共资源子集的功率级。
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Patent Agency Ranking
6.发明授权公开(公告)号：US10165589B2
公开(公告)日：2018-12-25
申请号：US15809077
申请日：2017-11-10
Applicant: Cisco Technology, Inc.
Inventor： Ritesh K. Madan , Vikram Chandrasekhar , Rohit Umesh Nabar , Kedar Durgadas Shirali , Qing Zhao
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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7.发明申请公开(公告)号：US20170295515A1
公开(公告)日：2017-10-12
申请号：US15630696
申请日：2017-06-22
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Ritesh K. Madan , Rohit Umesh Nabar
CPC classification number: H04W16/10 , H04W28/0236 , H04W28/04
Abstract: A method is provided in one example embodiment and may include determining for each of one or more macro cell radios, a corresponding set of one or more small cell radios that are under a coverage area of each of the one or more macro cell radios, wherein each corresponding set is associated with a corresponding macro cell radio; calculating interference coordination parameters for each small cell radio belonging to each corresponding set, wherein the interference coordination parameters for each small cell radio belonging to each corresponding set comprises an uplink interference budget for each small cell radio; and communicating the interference coordination parameters to each small cell radio belonging to each corresponding set.
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公开(公告)号：US20170208526A1
公开(公告)日：2017-07-20
申请号：US15002187
申请日：2016-01-20
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Ritesh K. Madan , Ehsan Haghani , Rohit Umesh Nabar
CPC classification number: H04W36/32 , H04W36/0083 , H04W36/0094 , H04W36/22 , H04W52/143 , H04W52/244 , H04W52/285 , H04W52/367 , H04W52/40 , H04W72/0473 , H04W72/082
Abstract: A method is provided in one example embodiment and may include generating feedback information by a small cell radio and a macro cell radio; setting a high mobility handover threshold for the macro cell radio based, at least in part, on the feedback information, wherein the high mobility handover threshold is used to trigger handover of one or more high mobility user equipment (UE) associated with the macro cell radio to the small cell radio; and setting a maximum downlink transmit power for the small cell radio based, at least in part, on the feedback information and the high mobility handover threshold.
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公开(公告)号：US20170127441A1
公开(公告)日：2017-05-04
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
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.
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10.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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