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公开(公告)号:US12273169B2
公开(公告)日:2025-04-08
申请号:US17859363
申请日:2022-07-07
Applicant: Apple Inc.
Inventor: Huaning Niu , Hyejung Jung , Gang Xiong , Yushu Zhang , Hooman Shirani-Mehr , Yuan Zhu , Jong-Kae Fwu
Abstract: Disclosed herein are apparatuses, systems, and methods using or implementing dynamic beamforming in control channels, by transmitting downlink control channels to user equipment (UEs) in a number of orthogonal frequency division multiplexing (OFDM) symbols of a downlink subframe. A first OFDM symbol of the number of OFDM symbols can be transmitted using first beamforming parameters in a first direction, and a second OFDM symbol of the number of OFDM symbols can be transmitted using second beamforming parameters different from the first beamforming parameters and in a second direction different from the first direction. The number of OFDM symbols used, as well as other parameters, can be dynamically adjusted in subsequent subframes. Other embodiments are described.
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公开(公告)号:US10958386B2
公开(公告)日:2021-03-23
申请号:US16408223
申请日:2019-05-09
Applicant: Apple Inc.
Inventor: Gang Xiong , Huaning Niu , Hooman Shirani-Mehr , Yushu Zhang , Yuan Zhu
Abstract: Devices and methods of providing symmetric UL and DL ACK/NACKs is generally described. UL ACK/NACKs of different UEs are multiplexed and received by a UE with a PUSCH. The receiving UE in response transmits the DL ACK/NACK. The ACK/NACK may be transmitted in a localized or distributed manner among subbands that may be adjacent or each may have blocks separated by blocks of a different subband. The ACK and NACK may use independent resources or the NACK may not be transmitted on the single ACK/NACK resource, the lack of an ACK serving as a NACK. The ACK/NACK may be transmitted using a beamforming weight shaped by the received PUSCH/PDSCH. The ACK/NACK symbol may be located in the first symbol, adjacent to the PUSCH/PDSCH, or at the end of a TTI. If adjacent, the UL grant or UL assignment may indicate whether the ACK/NACK resource is used by the PUSCH/PDSCH.
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公开(公告)号:US20220352943A1
公开(公告)日:2022-11-03
申请号:US17859363
申请日:2022-07-07
Applicant: Apple Inc.
Inventor: Huaning Niu , Hyejung Jung , Gang Xiong , Yushu Zhang , Hooman Shirani-Mehr , Yuan Zhu , Jong-Kae Fwu
Abstract: Disclosed herein are apparatuses, systems, and methods using or implementing dynamic beamforming in control channels, by transmitting downlink control channels to user equipment (UEs) in a number of orthogonal frequency division multiplexing (OFDM) symbols of a downlink subframe. A first OFDM symbol of the number of OFDM symbols can be transmitted using first beamforming parameters in a first direction, and a second OFDM symbol of the number of OFDM symbols can be transmitted using second beamforming parameters different from the first beamforming parameters and in a second direction different from the first direction. The number of OFDM symbols used, as well as other parameters, can be dynamically adjusted in subsequent subframes. Other embodiments are described.
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