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公开(公告)号：US11638278B2
公开(公告)日：2023-04-25
申请号：US17161643
申请日：2021-01-28
Applicant: QUALCOMM Incorporated
Inventor： Jun Ma , Xiaoxia Zhang , Iyab Issam Sakhnini , Anantha Krishna Karthik Nagarajan , Morteza Soltani
IPC: H04W72/08 , H04W72/1263 , H04J11/00 , H04L5/00 , H04W72/04
Abstract: Methods, systems, and devices for wireless communications are described. Some systems may support wireless communications in high frequency millimeter wave (mmW) bands, such as frequency range 4 (FR4) or other frequency ranges. To support such communications, a base station may dynamically configure a cyclic prefix (CP) length for single carrier waveform communications. The base station may determine the CP length to handle a beam switching delay, a delay spread of a physical propagation channel, or both. In some examples, a user equipment (UE) may provide feedback to the base station, and the base station may configure the UE with a CP length based on the feedback. The base station may transmit a configuration message to a UE indicating the configured CP length. A single carrier waveform with the configured CP length may maintain a symbol-level alignment with other supported waveforms, such as orthogonal frequency division multiplexing (OFDM) waveforms.
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公开(公告)号：US11626936B2
公开(公告)日：2023-04-11
申请号：US17193565
申请日：2021-03-05
Applicant: QUALCOMM Incorporated
Inventor： Iyab Issam Sakhnini , Tao Luo , Jun Ma , Xiaoxia Zhang
IPC: H04W72/04 , H04J1/02 , H04W72/044
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first node may determine a grid allocation of single carrier resource blocks (SC-RBs) that defines a plurality of SC-RBs in a time domain and in a frequency domain. The first node may perform, to a second node, a frequency division multiplexed transmission associated with a single carrier waveform using one or more SC-RBs indicated in the grid allocation of SC-RBs. Numerous other aspects are described.
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公开(公告)号：US11601983B2
公开(公告)日：2023-03-07
申请号：US17191531
申请日：2021-03-03
Applicant: QUALCOMM Incorporated
Inventor： Iyab Issam Sakhnini , Tao Luo , Junyi Li , Jun Ma , Peter Gaal , Xiaoxia Zhang
Abstract: Methods, systems, and devices for wireless communications are described. For example, a user equipment (UE) may transmit a random access preamble to a base station as part of a random access procedure between the UE and the base station. To generate the random access preamble, the UE may repeat each time domain sample of a base sequence on a per-sample basis to obtain a repeated sequence that includes multiple repetitions of each time domain sample of the base sequence, with repetitions of the same sample being consecutive within the repeated sequence. The UE may perform such sample-wise repetition before adding a cyclic prefix (CP) to the repeated sequence or after adding a base CP to the base sequence.
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公开(公告)号：US20230060054A1
公开(公告)日：2023-02-23
申请号：US17407603
申请日：2021-08-20
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxia Zhang , Jun Ma , Morteza Soltani , Raviteja Patchava , Jing Sun , Iyab Issam Sakhnini , Tao Luo , Peter Gaal
Abstract: Methods, systems, and devices for wireless communication are described to support guard interval (GI) configurations for multiple links. For example, a user equipment (UE) may determine a first GI duration for a first transmission reception point (TRP) and a second GI duration for a second TRP, when the UE is operating in a multi-TRP mode. The UE may determine the GI durations based on a difference in timing between signal reception from the first and second TRPs and may transmit a signal to one or both of the TRPs to indicate the GI durations. Based on the indicated GI durations, the first and second TRPs may transmit signaling to the UE that includes or implements the corresponding GI duration for each TRP. For example, the signaling may include a GI appended at the end of each symbol period that has a GI duration corresponding to the respective TRP.
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公开(公告)号：US20230011861A1
公开(公告)日：2023-01-12
申请号：US17370370
申请日：2021-07-08
Applicant: QUALCOMM Incorporated
Inventor： Morteza Soltani , Jun Ma , Xiaoxia Zhang , Iyab Issam Sakhnini , Hemant Saggar
Abstract: Methods, systems, and devices for wireless communications are described in which control information is transmitted using a single carrier (SC) waveform in time domain blocks without a cyclic prefix (CP). A base station may configure a user equipment (UE) for control information transmissions using a SC waveform without CPs in time domain blocks, and may activate the SC waveform without CPs in time domain blocks based on one or more parameters. The control information may be non-uniformly segmented across two or more time domain blocks or two or more portions of a time domain block. A reference signal, such as a demodulation reference signal, may be transmitted in the time domain blocks, where the reference signals may be distributed evenly or unevenly across the time domain blocks.
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Patent Agency Ranking
公开(公告)号：US20220408289A1
公开(公告)日：2022-12-22
申请号：US17344873
申请日：2021-06-10
Applicant: QUALCOMM Incorporated
Inventor： Morteza Soltani , Jun Ma , Iyab Issam Sakhnini , Hemant Saggar
IPC: H04W24/10 , H04B17/336 , H04L5/00 , H04W24/08
Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may determine a phase noise profile and may transmit the phase noise profile to a receiving device. The receiving device may use the phase noise profile and received phase tracking reference signals to more accurately determine phase errors on a wireless channel between the two devices and compensate for the phase noise errors. In examples where the UE transmits the phase noise profile to the base station, the UE may include the phase noise profile in a measurement report or in a radio resource control (RRC) message, among other examples. In examples where the base station transmits the phase noise profile to a UE, the base station may include the phase noise profile in a broadcast message, a unicast message, or an RRC message.
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公开(公告)号：US20220361254A1
公开(公告)日：2022-11-10
申请号：US17651206
申请日：2022-02-15
Applicant: QUALCOMM Incorporated
Inventor： Liangping MA , Xiao Feng Wang , Alberto Rico Alvarino , Peter Gaal , Ayan Sengupta , Jun Ma , Bharat Shrestha , Changhwan Park , Umesh Phuyal , Huilin Xu
Abstract: Aspects are provided which allow coverage enhancement and support in NTNs for repetition, frequency hopping, and antenna switching during msgA transmissions based on a preamble-to-PO mapping. In one aspect, the base station provides and the UE obtains a RACH configuration associating a preamble with at least one PO for two-step random access, where the PO spans a time interval greater than one slot. In another aspect, the base station provides and the UE obtains a RACH configuration associating a preamble with a plurality of POs for two-step random access. In a further aspect, the base station provides the UE a plurality of configurations each indicating a PO for two-step random access. In an additional aspect, the base station provides the UE a configuration indicating a guard band for a PO for two-step random access, where the guard band is indicated in units of subcarriers spanning less than one PRB.
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公开(公告)号：US20220287098A1
公开(公告)日：2022-09-08
申请号：US17191531
申请日：2021-03-03
Applicant: QUALCOMM Incorporated
Inventor： Iyab Issam Sakhnini , Tao Luo , Junyi Li , Jun Ma , Peter Gaal , Xiaoxia Zhang
Abstract: Methods, systems, and devices for wireless communications are described. For example, a user equipment (UE) may transmit a random access preamble to a base station as part of a random access procedure between the UE and the base station. To generate the random access preamble, the UE may repeat each time domain sample of a base sequence on a per-sample basis to obtain a repeated sequence that includes multiple repetitions of each time domain sample of the base sequence, with repetitions of the same sample being consecutive within the repeated sequence. The UE may perform such sample-wise repetition before adding a cyclic prefix (CP) to the repeated sequence or after adding a base CP to the base sequence.
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公开(公告)号：US20220240277A1
公开(公告)日：2022-07-28
申请号：US17161643
申请日：2021-01-28
Applicant: QUALCOMM Incorporated
Inventor： Jun Ma , Xiaoxia Zhang , Iyab Issam Sakhnini , Anantha Krishna Karthik Nagarajan , Morteza Soltani
Abstract: Methods, systems, and devices for wireless communications are described. Some systems may support wireless communications in high frequency millimeter wave (mmW) bands, such as frequency range 4 (FR4) or other frequency ranges. To support such communications, a base station may dynamically configure a cyclic prefix (CP) length for single carrier waveform communications. The base station may determine the CP length to handle a beam switching delay, a delay spread of a physical propagation channel, or both. In some examples, a user equipment (UE) may provide feedback to the base station, and the base station may configure the UE with a CP length based on the feedback. The base station may transmit a configuration message to a UE indicating the configured CP length. A single carrier waveform with the configured CP length may maintain a symbol-level alignment with other supported waveforms, such as orthogonal frequency division multiplexing (OFDM) waveforms.
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公开(公告)号：US20220240253A1
公开(公告)日：2022-07-28
申请号：US17161178
申请日：2021-01-28
Applicant: QUALCOMM Incorporated
Inventor： Iyab Issam Sakhnini , Tao Luo , Xiaoxia Zhang , Jun Ma , Jing Sun , Juan Montojo , Peter Gaal
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling from a base station including a resource configuration indicating a resource block includes a synchronization signal block (SSB) and a control resource set (CORESET). The resource configuration may be based on a sub-carrier spacing (SCS) configuration. The UE may receive the SSB and the CORESET from the base station within the resource block and according to the resource configuration. The UE may receive one or more reference signals and may decode the SSB and the CORESET based on the resource configuration and the reference signals.
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