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公开(公告)号：US20210153119A1
公开(公告)日：2021-05-20
申请号：US17130291
申请日：2020-12-22
Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
Inventor： Mohammed Sammour , Sudheer A. Grandhi , Robert L. Olesen
Abstract: A method and apparatus may be used in wireless communications. The apparatus may be an access point (AP), and may transmit a power save frame. The power save frame may include one or more Uplink (UL) Transmission Times (ULT)s. The apparatus may determine that a station (STA) did not transmit during its respective ULT. The AP may transmit another power save frame. The other power save frame may include a modified ULT. The modified ULT may be for a STA that did not transmit during its respective ULT. The other power save frame may include an unmodified ULT. The unmodified ULT may be for a STA that did not transmit.
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公开(公告)号：US10375635B2
公开(公告)日：2019-08-06
申请号：US16173540
申请日：2018-10-29
Applicant: InterDigital Technology Corporation
Inventor： Mohammed Sammour , Sudheer A. Grandhi , Robert L. Olesen
Abstract: A method and apparatus may be used in wireless communications. The apparatus may be an access point (AP), and may transmit a power save frame. The power save frame may include one or more Uplink (UL) Transmission Times (ULT)s. The apparatus may determine that a station (STA) did not transmit during its respective ULT. The AP may transmit another power save frame. The other power save frame may include a modified ULT. The modified ULT may be for a STA that did not transmit during its respective ULT. The other power save frame may include an unmodified ULT. The unmodified ULT may be for a STA that did not transmit.
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公开(公告)号：US10225049B2
公开(公告)日：2019-03-05
申请号：US15439653
申请日：2017-02-22
Applicant: InterDigital Technology Corporation
Inventor： Stephen E. Terry , Robert L. Olesen , Jin Wang , Arty Chandra
Abstract: A method and apparatus may be used for supporting multiple hybrid automatic repeat request (H-ARQ) processes per transmission time interval (TTI). A transmitter and a receiver may include a plurality of H-ARQ processes. Each H-ARQ process may transmit and receive one TB per TTI. The transmitter may generate a plurality of TBs and assign each TB to a H-ARQ process. The transmitter may send control information for each TB, which may include H-ARQ information associated TBs with the TBs. The transmitter may send the TBs using the associated H-ARQ processes simultaneously per TTI. After receiving the TBs, the receiver may send feedback for each of the H-ARQ processes and associated TBs indicating successful or unsuccessful receipt of each of the TBs to the transmitter. The feedback for multiple TBs may be combined for the simultaneously transmitted H-ARQ processes, (i.e., TBs).
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公开(公告)号：US10135574B2
公开(公告)日：2018-11-20
申请号：US15401924
申请日：2017-01-09
Applicant: InterDigital Technology Corporation
Inventor： Jaeyoung Kwak , Chang-Soo Koo , Robert L. Olesen , Aykut Bultan , Fatih Ozluturk
IPC: H04L1/06 , H04B7/0413 , H04L27/26 , H04B7/06
Abstract: Channel state information (CSI) that includes a first channel quality indicator (CQI) for a first group of subcarriers and a second CQI for a second group of subcarriers may be received. For the first and second group of subcarriers, a number of streams for spatial multiplexing and modulation and coding schemes based on respective CQIs may be determined.
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公开(公告)号：US20180205500A1
公开(公告)日：2018-07-19
申请号：US15856991
申请日：2017-12-28
Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
Inventor： Jaeyoung Kwak , Robert L. Olesen , Aykut Bultan , Eldad M. Zeira , Chang-Soo Koo , Fatih M. Ozluturk , Yuejin Huang , Kalpendu R. Pasad
IPC: H04L1/06 , H04B7/0417 , H04B7/06 , H04L1/00 , H04L5/00
CPC classification number: H04L1/0009 , H04B7/0417 , H04B7/0626 , H04B7/0632 , H04B7/066 , H04L1/0003 , H04L1/0026 , H04L1/0606 , H04L5/0007 , H04L5/0023 , H04L5/006 , H04L27/156 , H04L27/2626 , H04L2027/0046 , Y02B70/30 , Y02D50/10
Abstract: The present invention is related to a method and apparatus for implementing space frequency block coding (SFBC) in an orthogonal frequency division multiplexing (OFDM) wireless communication system. The present invention is applicable to both a closed loop mode and an open loop mode. In the closed loop mode, power loading and eigen-beamforming are performed based on channel state information (CSI). A channel coded data stream is multiplexed into two or more data streams. Power loading is performed based on the CSI on each of the multiplexed data streams. SFBC encoding is performed on the data streams for each of the paired subcarriers. Then, eigen-beamforming is performed based on the CSI to distribute eigenbeams to multiple transmit antennas. The power loading may be performed on two or more SFBC encoding blocks or on each eigenmodes. Additionally, the power loading may be performed across subcarriers or subcarrier groups for weak eigenmodes.
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Patent Agency Ranking
公开(公告)号：US09991992B2
公开(公告)日：2018-06-05
申请号：US15434283
申请日：2017-02-16
Applicant: InterDigital Technology Corporation
Inventor： Robert L. Olesen , Eldad M. Zeira , Peter J. Voltz , Yongwen E. Yang , Qingyuan Dai , Chang-Soo Koo , I-Tai Lu , KunJu Tsai
IPC: H04W4/00 , H04L1/06 , H04B7/06 , H04B7/0456 , H04B17/336 , H04L1/00 , H04W84/12
CPC classification number: H04L1/0643 , H04B7/0456 , H04B7/0619 , H04B7/0626 , H04B7/0669 , H04B7/0697 , H04B7/0837 , H04B7/0891 , H04B17/336 , H04L1/0003 , H04L1/0009 , H04L1/0606 , H04L1/0625 , H04L1/0631 , H04L27/2626 , H04L27/2647 , H04W84/12
Abstract: A method and apparatus for implementing spatial processing with unequal modulation and coding schemes (MCSs) or stream-dependent MCSs are disclosed. Input data may be parsed into a plurality of data streams, and spatial processing is performed on the data streams to generate a plurality of spatial streams. An MCS for each data stream is selected independently. The spatial streams are transmitted via multiple transmit antennas. At least one of the techniques of space time block coding (STBC), space frequency block coding (SFBC), quasi-orthogonal Alamouti coding, time reversed space time block coding, linear spatial processing and cyclic delay diversity (CDD) may be performed on the data/spatial streams. An antennal mapping matrix may then be applied to the spatial streams. The spatial streams are transmitted via multiple transmit antennas. The MCS for each data stream may be determined based on a signal-to-noise ratio of each spatial stream associated with the data stream.
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公开(公告)号：US09893844B2
公开(公告)日：2018-02-13
申请号：US15018227
申请日：2016-02-08
Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
Inventor： Stephen E. Terry , Robert L. Olesen , Jin Wang , Arty Chandra
CPC classification number: H04L1/1861 , H04B7/0413 , H04B7/0632 , H04L1/1607 , H04L1/1812 , H04L1/1887 , H04L5/0053 , H04L5/0055 , H04L5/0057 , H04W72/0406 , H04W72/042 , H04W72/0446 , H04W88/08
Abstract: A method and apparatus may be used for supporting multiple hybrid automatic repeat request (H-ARQ) processes per transmission time interval (TTI). A transmitter and a receiver may include a plurality of H-ARQ processes. Each H-ARQ process may transmit and receive one TB per TTI. The transmitter may generate a plurality of TBs and assign each TB to a H-ARQ process. The transmitter may send control information for each TB, which may include H-ARQ information associated TBs with the TBs. The transmitter may send the TBs using the associated H-ARQ processes simultaneously per TTI. After receiving the TBs, the receiver may send feedback for each of the H-ARQ processes and associated TBs indicating successful or unsuccessful receipt of each of the TBs to the transmitter. The feedback for multiple TBs may be combined for the simultaneously transmitted H-ARQ processes, (i.e., TBs).
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公开(公告)号：US09887808B2
公开(公告)日：2018-02-06
申请号：US15433011
申请日：2017-02-15
Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
Inventor： Jaeyoung Kwak , Robert L. Olesen , Aykut Bultan , Eldad M. Zeira , Changsoo Koo , Fatih M. Ozluturk , Yuejin Huang , Kalpendu R. Pasad
IPC: H04L27/26 , H04B7/06 , H04L1/06 , H04B7/0417 , H04L1/00 , H04L27/156 , H04L5/00 , H04L27/00
CPC classification number: H04L1/0606 , H04B7/0417 , H04B7/0626 , H04B7/0632 , H04B7/066 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L5/0007 , H04L5/0023 , H04L5/006 , H04L27/156 , H04L27/2626 , H04L2027/0046 , Y02B70/30 , Y02D50/10
Abstract: The present invention is related to a method and apparatus for implementing space frequency block coding (SFBC) in an orthogonal frequency division multiplexing (OFDM) wireless communication system. The present invention is applicable to both a closed loop mode and an open loop mode. In the closed loop mode, power loading and eigen-beamforming are performed based on channel state information (CSI). A channel coded data stream is multiplexed into two or more data streams. Power loading is performed based on the CSI on each of the multiplexed data streams. SFBC encoding is performed on the data streams for each of the paired subcarriers. Then, eigen-beamforming is performed based on the CSI to distribute eigenbeams to multiple transmit antennas. The power loading may be performed on two or more SFBC encoding blocks or on each eigenmodes. Additionally, the power loading may be performed across subcarriers or subcarrier groups for weak eigenmodes.
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9.发明授权Combined open loop/closed loop method for controlling uplink power of a mobile station 有权用于控制移动台的上行链路功率的组合开环/闭环方法公开(公告)号：US09572112B2
公开(公告)日：2017-02-14
申请号：US15004244
申请日：2016-01-22
Applicant: InterDigital Technology Corporation
Inventor： Sung-Hyuk Shin , Zinan Lin , Donald M. Grieco , Robert L. Olesen
CPC classification number: H04W52/242 , H04L1/1812 , H04W52/06 , H04W52/08 , H04W52/10 , H04W52/146 , H04W76/28
Abstract: A method and apparatus are disclosed comprising a combined open loop/closed loop uplink power control scheme for E-UTRA. The combined open and closed loop method for UL intra-cell PC controls the wireless transmit receive unit (WTRU) transmit power spectral density (PSD), PSDTx, (e.g. power per RB).
Abstract translation: 公开了一种用于E-UTRA的组合开环/闭环上行链路功率控制方案的方法和装置。 用于UL小区内PC的组合的开环和闭环方法控制无线发射接收单元（WTRU）发射功率谱密度（PSD），PSDTx（例如每RB的功率）。
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公开(公告)号：US20160191208A1
公开(公告)日：2016-06-30
申请号：US15061703
申请日：2016-03-04
Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
Inventor： Jaeyoung Kwak , Robert L. Olesen , Aykut Bultan , Eldad M. Zeira , Changsoo Koo , Fatih M. Ozluturk , Yuejin Huang , Kalpendu R. Pasad
CPC classification number: H04L1/0606 , H04B7/0417 , H04B7/0626 , H04B7/0632 , H04B7/066 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L5/0007 , H04L5/0023 , H04L5/006 , H04L27/156 , H04L27/2626 , H04L2027/0046 , Y02B70/30 , Y02D50/10
Abstract: The present invention is related to a method and apparatus for implementing space frequency block coding (SFBC) in an orthogonal frequency division multiplexing (OFDM) wireless communication system. The present invention is applicable to both a closed loop mode and an open loop mode. In the closed loop mode, power loading and eigen-beamforming are performed based on channel state information (CSI). A channel coded data stream is multiplexed into two or more data streams. Power loading is performed based on the CSI on each of the multiplexed data streams. SFBC encoding is performed on the data streams for each of the paired subcarriers. Then, eigen-beamforming is performed based on the CSI to distribute eigenbeams to multiple transmit antennas. The power loading may be performed on two or more SFBC encoding blocks or on each eigenmodes. Additionally, the power loading may be performed across subcarriers or subcarrier groups for weak eigenmodes.
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