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公开(公告)号：US20230130505A1
公开(公告)日：2023-04-27
申请号：US18047835
申请日：2022-10-19
发明人： Vasanthan Raghavan , Tao Luo , Mohammad Ali Tassoudji , Junyi Li
IPC分类号： H04B7/0456 , H04B7/06
摘要： Methods, systems, and devices for wireless communications are described. A base station may transmit a synchronization signal block (SSB) burst set including a first set of SSBs transmitted using a first codebook and a second set of SSBs transmitted using a second codebook. In some cases, the first codebook may be configured for beamforming at a first transmission distance range (e.g., for far field transmissions) and the second codebook may be configured for beamforming at a second transmission distance range (e.g., for near field transmissions). Based on transmitting the SSB burst, the base station may receive an indication of a first SSB from the first set or the second set from a user equipment (UE). The base station may then communicate messages to the UE using a transmission beam and codebook associated with the first SSB indicated by the UE.
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公开(公告)号：US11621758B2
公开(公告)日：2023-04-04
申请号：US17457896
申请日：2021-12-06
IPC分类号： H04L1/02 , H04B7/06 , H04B17/318 , H04B17/373 , H04B7/0413
摘要： Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate with other network devices as part of a wireless communications system. The UE may identify a blockage corresponding to one or more antenna arrays of a set of antenna arrays based on using a first set of beam weights, which may correspond to a static beamforming codebook of the one or more antenna arrays. The UE may switch from a static beamforming codebook-based beam weight determination to a dynamic beamforming codebook-based beam weight determination. The UE may then determine a second set of beam weights to use for the one or more antenna arrays based on the dynamic beamforming codebook-based beam weight determination. The UE may then communicate using the one or more antenna arrays according to the second set of beam weights.
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公开(公告)号：US11594823B2
公开(公告)日：2023-02-28
申请号：US17119638
申请日：2020-12-11
发明人： Taesik Yang , Mohammad Ali Tassoudji , Jeongil Jay Kim , Darryl Sheldon Jessie , Kevin Hsi-Huai Wang
摘要： Techniques are provided for improving the performance of a multi-band antenna in a wireless device. An example wireless device includes at least one radio frequency integrated circuit, and at least one patch antenna operably coupled to the at least one radio frequency integrated circuit, including a first patch operably coupled to the at least one radio frequency integrated circuit, a ground plane disposed below the first patch, and a plurality of via wall structures disposed around the first patch, wherein each of the plurality of via wall structures is electrically coupled to the ground plane.
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公开(公告)号：US11581664B2
公开(公告)日：2023-02-14
申请号：US17395308
申请日：2021-08-05
发明人： Jorge Fabrega Sanchez , Mohammad Ali Tassoudji , Assaf Aviv , Taesik Yang , Jeongil Jay Kim , Kevin Hsi-Huai Wang
摘要： An antenna is described. The antenna includes a first plurality of first elements. Each of the first elements is dual polarized and configured to support a first set of bands and a second set of bands that is mutually exclusive from the first set of bands. The antenna also includes a second plurality of second elements. Each of the second elements is dual polarized and configured to support the second set of bands. The second plurality of second elements is interleaved with the first plurality of first elements.
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45.发明申请公开(公告)号：US20220407583A1
公开(公告)日：2022-12-22
申请号：US17351875
申请日：2021-06-18
发明人： Vasanthan Raghavan , Mohammad Ali Tassoudji , Tao Luo , Junyi Li
IPC分类号： H04B7/08 , H04W16/28 , H04B7/0456 , H04B7/06
摘要： Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to report feedback to a base station to address polarization impairments in multiple-input multiple-output (MIMO) communications. The UE and the base station may establish a communications link using a pair of orthogonally polarized beams, where the pair of polarized beams may be selected based on a beam sweep procedure. The UE may transmit a report to the base station indicating one or more polarization parameters associated with beam pairs identified in the beam sweep procedure, such as one or more orthogonality parameters, one or more polarization parameters relating to one or more beam pairs, or one or more angular spread parameters. Based on the report, the base station may transmit a beam configuration to the UE for polarization MIMO communications.
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公开(公告)号：US11450964B2
公开(公告)日：2022-09-20
申请号：US17016196
申请日：2020-09-09
发明人： Seong Heon Jeong , Mohammad Ali Tassoudji , Jeremy Darren Dunworth , Jon Lasiter , Ravindra Vaman Shenoy
摘要： An apparatus is disclosed for an antenna with a conductive cage. In an example aspect, the apparatus includes a ground plane with at least one opening. The apparatus also includes at least one antenna assembly with at least one radiating element, at least one feed via, and a conductive cage. The radiating element is implemented on a first plane that is substantially parallel to the ground plane. The feed via is connected to the at least one radiating element and is configured to connect to at least one transmission line through the opening. The conductive cage includes at least three ground vias, which are connected to the ground plane at positions that are distributed around the opening. Lengths of the at least three ground vias extend a portion of a distance between the ground plane and the radiating element.
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公开(公告)号：US11411321B2
公开(公告)日：2022-08-09
申请号：US16704405
申请日：2019-12-05
发明人： Jon Lasiter , Donald William Kidwell, Jr. , Ravindra Vaman Shenoy , Mohammad Ali Tassoudji , Jeremy Darren Dunworth , Vladimir Aparin , Yu-Chin Ou , Seong Heon Jeong
摘要： An antenna system includes: a ground conductor; a substrate; a pair of planar dipole conductors disposed such that at least a portion of the substrate is disposed between the ground conductor and the pair of dipole conductors; a pair of energy couplers each electrically connected to a respective one of the pair of dipole conductors; and a pair of isolated lobes including electrically-conductive material. The pair of isolated lobes are electrically separate from the pair of dipole conductors and the pair of energy couplers, and disposed between the pair of dipole conductors and the ground conductor.
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公开(公告)号：US20220217656A1
公开(公告)日：2022-07-07
申请号：US17678950
申请日：2022-02-23
IPC分类号： H04W52/36 , H04W52/18 , H01Q1/24 , H01Q1/52 , H04B1/3827
摘要： Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may use transmissions causing power density exposure (PDE) to nearby users. To reduce the PDE of an antenna module (e.g., below a maximum PDE threshold), the UE may implement a shielding strip around the antenna module. For example, the antenna module may include a substrate having a first surface and a set of antenna elements on the first surface. The shielding strip may enclose the set of antenna elements of the antenna module and extend away from the first surface above the antenna elements. The shielding strip may reduce PDE outside a field of view of the antenna module. Additionally, in some cases, the placement of the antenna module in the UE and the materials used for constructing the UE may further reduce PDE.
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公开(公告)号：US20220070834A1
公开(公告)日：2022-03-03
申请号：US17367214
申请日：2021-07-02
发明人： Vasanthan Raghavan , Mohammad Ali Tassoudji , Yu-Chin Ou , Kobi Ravid , Ozge Koymen , Junyi Li
摘要： Methods, systems, and devices for wireless communications are described that support beam correlation across frequency bands for beam selection in the event of a frequency switch. For example, a base station may determine a configuration indicating a mapping between a set of beam identifiers (IDs) and a set of angle coverage ranges for a set of frequency ranges which corresponds to a user equipment's (UE) operating frequencies. In some examples, the UE may undergo a frequency switch and switch from a first operating frequency to a second operating frequency. The UE may select a beam ID based on the mapping and communicate with the base station via the second operating frequency using a beam associated with the selected beam ID.
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公开(公告)号：US10971819B2
公开(公告)日：2021-04-06
申请号：US16276957
申请日：2019-02-15
发明人： Guining Shi , Young Jun Song , Allen Minh-Triet Tran , Mohammad Ali Tassoudji , Elizabeth Wyrwich , Julio Zegarra , Clinton James Wilber , Neil Burns , Jorge Fabrega Sanchez
摘要： An antenna system for transducing radio-frequency energy includes: a first antenna sub-system comprising a plurality of radiators and a ground conductor, each of the plurality of radiators being sized and shaped to transduce millimeter-wave energy between first wireless signals and first electrical current signals; and a second antenna sub-system comprising a first radiator configured to transduce sub-6 GHz energy between second wireless signals and second electrical current signals, wherein the first radiator comprises the ground conductor.
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