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公开(公告)号：US09838978B1
公开(公告)日：2017-12-05
申请号：US14970892
申请日：2015-12-16
Applicant: Sprint Spectrum LP
Inventor： Sanghoon Sung , Udit Thakore , Hau Tran , Yun Sung Kim
CPC classification number: H04W52/262 , H04B17/318 , H04J11/003 , H04L1/0005 , H04L5/0046 , H04L5/0069 , H04L5/14 , H04W16/14 , H04W52/242 , H04W52/244 , H04W52/383 , H04W72/1263 , H04W72/1268 , H04W76/23
Abstract: Device-to-device (D2D) transmissions by a wireless device may interfere with base station reception of other signals. To mitigate this interference, the wireless device estimates the path loss between itself and the base station. The path loss and the current D2D transmission power level are used to estimate the amount of interference the base station is experiencing as a result of the D2D transmissions from the wireless device. Based on the estimated interference experienced by the base station, the wireless device increases the robustness of the MCS being used and decreases the transmission power level by a corresponding amount. By decreasing the D2D transmission power level, less interference will be experienced by the base station. By increasing the robustness of the MCS, the impact of the reduced D2D transmission power level is mitigated.
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2.发明授权公开(公告)号：US09191858B1
公开(公告)日：2015-11-17
申请号：US14284656
申请日：2014-05-22
Applicant: Sprint Spectrum LP
Inventor： Sanghoon Sung , Yun Sung Kim , Hau Tran , Munawar Uddin
Abstract: A system information message is received by a wireless device. The system information message was broadcast from a first access node using a first frequency band. Cell loading information is extracted from the system information message. Based on the cell loading information, it is determined whether to connect the wireless device to the first access node using the first frequency band, or to a second access node using a second frequency band. The second access node is also broadcasting system information messages that include cell loading information.
Abstract translation: 系统信息消息由无线设备接收。 使用第一频带从第一接入节点广播系统信息消息。 从系统信息消息中提取信元加载信息。 基于小区负载信息，确定是否使用第一频带将无线设备连接到第一接入节点，或者使用第二频带来确定到第二接入节点。 第二接入节点还广播包括小区负载信息的系统信息消息。
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公开(公告)号：US10798660B1
公开(公告)日：2020-10-06
申请号：US15800527
申请日：2017-11-01
Applicant: Sprint Spectrum LP
Inventor： Sanghoon Sung , Udit Thakore , Hau Tran , Yun Sung Kim
Abstract: Device-to-device (D2D) transmissions by a wireless device may interfere with base station reception of other signals. To mitigate this interference, the wireless device estimates the path loss between itself and the base station. The path loss and the current D2D transmission power level are used to estimate the amount of interference the base station is experiencing as a result of the D2D transmissions from the wireless device. Based on the estimated interference experienced by the base station, the wireless device increases the robustness of the MCS being used and decreases the transmission power level by a corresponding amount. By decreasing the D2D transmission power level, less interference will be experienced by the base station. By increasing the robustness of the MCS, the impact of the reduced D2D transmission power level is mitigated.
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公开(公告)号：US09844077B1
公开(公告)日：2017-12-12
申请号：US14662398
申请日：2015-03-19
Applicant: Sprint Spectrum LP
Inventor： Sanghoon Sung , Udit Thakore , Hau Tran , Tri Duong
CPC classification number: H04W74/0833 , H04B7/0617 , H04B7/086 , H04W72/046 , H04W72/0493 , H04W72/08
Abstract: A method of operating a communication system includes communicating data between an access node and a wireless device using carrier aggregation. This carrier aggregation includes communicating using at least a primary carrier and a secondary carrier. The communication system determines that conditions for the secondary carrier meet a beamforming requirement criteria. The communication system determines an angle of arrival of the primary carrier. Based on the angle of arrival determined for the primary carrier, beamforming is applied to the secondary carrier.
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