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公开(公告)号：US10715369B2
公开(公告)日：2020-07-14
申请号：US15975112
申请日：2018-05-09
Applicant: QUALCOMM Incorporated
Inventor： Tianyang Bai , Juergen Cezanne , Sundar Subramanian , Junyi Li
Abstract: At a receiver, errors may occur in estimating phase trajectory based on PT-RS due to a window effect. In order to address the problem of such errors, a transmitter determines at least one location for inserting PT-RS samples into a sequence of a plurality of samples, wherein a first set of the samples comprises a first number of samples at a beginning of the sequence and/or a second number of samples at an end of the sequence, and wherein the at least one location for the PT-RS samples is within a second set of the plurality of samples. The apparatus inserts the PT-RS samples into the sequence based on the determined at least one location and transmits a signal based on the inserted PT-RS samples. A receiver extracts the PT-RS samples and estimates phase errors for data samples in the received transmission based on the extracted PT-RS samples.
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公开(公告)号：US20200084793A1
公开(公告)日：2020-03-12
申请号：US16535637
申请日：2019-08-08
Applicant: QUALCOMM Incorporated
Inventor： Tianyang Bai , Junyi Li , Kiran Venugopal , Jung Ho Ryu , Makesh Pravin John Wilson , Tao Luo , Yan Zhou
Abstract: Methods, systems, and devices for wireless communications are described that provide beam determination in beamformed wireless communications. A base station may transmit multiple repetitions of control information for a subsequent scheduled transmission. A user equipment (UE) may receive one of the multiple repetitions, determine the control information, and adjust beamforming parameters for the scheduled transmission. The UE may have a scheduling threshold that corresponds to a time needed for the UE to adjust beamforming parameters for the scheduled transmission, and the UE may identify the beamforming parameters for the scheduled transmission from any one of the multiple repetitions of control information, which may be transmitted using different downlink transmission beams, before or after the scheduling threshold, or combinations thereof.
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公开(公告)号：US20200053767A1
公开(公告)日：2020-02-13
申请号：US16413103
申请日：2019-05-15
Applicant: QUALCOMM Incorporated
Inventor： Tianyang Bai , Makesh Pravin John Wilson , Jung Ho Ryu , Kiran Venugopal , Yan Zhou , Tao Luo
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit to a base station an indication of a UE capability associated with a beam change at the UE. The UE may receive, from the base station during a scheduling slot, a control signal including a transmission configuration indicator (TCI) and a grant for a transport block over a first slot aggregation including a set of slots. In some cases, each slot of the first slot aggregation is offset from the scheduling slot according to a scheduling constraint based on the indicated UE capability. The UE may transmit or receive the transport block over the first slot aggregation using a UE beam based on the TCI.
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154.发明授权公开(公告)号：US10560243B2
公开(公告)日：2020-02-11
申请号：US15711157
申请日：2017-09-21
Applicant: QUALCOMM Incorporated
Inventor： Tianyang Bai , Juergen Cezanne , Sundar Subramanian , Junyi Li
Abstract: An apparatus for wireless communication selects a recommendation for the need. The apparatus selects the resource to transmit a phase tracking reference signal based on a condition of a communication system. The apparatus performs at least one of transmitting an indication of the selected recommendation for the resource to a second wireless communication device or transmitting at least one of information or a reference signal to the second device to assist the second device in determining the resource. In an aspect, the selection may be made based on receiving a request for a recommendation from the second wireless communication device or the transmitting the at least one of the information or the reference signal are based on a request received.
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公开(公告)号：US20190394793A1
公开(公告)日：2019-12-26
申请号：US16443177
申请日：2019-06-17
Applicant: QUALCOMM Incorporated
Inventor： Kiran Venugopal , Makesh Pravin John Wilson , Tianyang Bai , Juan Montojo , Xiaoxia Zhang , Tao Luo
Abstract: Methods, systems, and devices for wireless communications are described. A base station may configure a user equipment (UE) with a list of transmission configuration indicator (TCI) state patterns where each entry in the list may correspond to a different TCI state pattern. The base station may transmit an indication of a selected entry from the TCI state pattern list and transmit a grant to the UE indicating that resources have been allocated in for transmitting a transport block (TB). The UE may receive the grant and attempt to receive the TB in accordance with the indicated TCI state pattern. The UE may generate multi-bit feedback to indicate whether the UE was able to successfully decode the TB and transmit the feedback to the base station. The base station may use the multi-bit feedback for determining whether to select a different TCI state pattern.
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Patent Agency Ranking
公开(公告)号：US20190312708A1
公开(公告)日：2019-10-10
申请号：US16379232
申请日：2019-04-09
Applicant: QUALCOMM Incorporated
Inventor： Tianyang Bai , Makesh Pravin John Wilson , Kiran Venugopal , Muhammad Nazmul Islam , Gabi Sarkis , Joseph Binamira Soriaga , Tao Luo
Abstract: Wireless devices may employ techniques for indicating alternative modulation coding schemes (MCSs) (e.g., MCS values or MCS indices not associated with a default list or default MCS table). That is, communications (e.g., such as physical downlink control channel (PDCCH) transmissions carrying downlink control information (DCI), physical downlink shared channel (PDSCH) transmissions carrying uplink grants, etc.) may include information (e.g., in MCS fields and reserved fields) that indicate alternative MCSs for subsequent communications. For example, random access radio network temporary identifier (RA-RNTI) scrambled DCI, random access response (RAR) messages, etc., may indicate an alternative MCS for subsequent messages in a random access procedure (e.g., for a RAR, an RRC connection request, etc.). The alternative MCS may be conveyed by indicating information such as MCS scaling factors, alternative MCS table IDs, MCS indices associated with the alternative MCS table, or some combination thereof.
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公开(公告)号：US20190132040A1
公开(公告)日：2019-05-02
申请号：US16162015
申请日：2018-10-16
Applicant: QUALCOMM Incorporated
Inventor： Tianyang Bai , Navid Abedini , Juergen Cezanne , Muhammed Nazmul Islam , Vasanthan Raghavan , Jianghong Luo , Sundar Subramanian , Junyi Li
IPC: H04B7/06 , H04B7/0408 , H04B7/185 , H04B17/309
Abstract: High frequency wireless communication networks rely on directional transmit and receive beams to achieve large gains and overcome large pathlosses associated with high frequency signals. With highly directional signals, link failure may occur. Network nodes associated with the link failure, may need to identify new beam pairs and establish a new link as quickly as possible. In several aspects, beam sweep procedures are expedited, allowing for rapid link reestablishment. Disclosed techniques allow for rapid link reestablishment with and without beam correspondence.
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公开(公告)号：US12224825B2
公开(公告)日：2025-02-11
申请号：US18504529
申请日：2023-11-08
Applicant: QUALCOMM Incorporated
Inventor： Yan Zhou , Tianyang Bai , Tao Luo
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may generate a report indicating a mapping between antenna panels and reference signal beam indications. The UE may transmit the report and apply the mapping to the antenna panels for reference signals. Numerous other aspects are provided.
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公开(公告)号：US12212516B2
公开(公告)日：2025-01-28
申请号：US17812008
申请日：2022-07-12
Applicant: QUALCOMM Incorporated
Inventor： Tianyang Bai , Yan Zhou , Tao Luo , Junyi Li
IPC: H04L5/00
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a set of reference signals (RSs) that are associated with a reduced activation time. The UE may receive activation signaling identifying a transmission configuration indicator (TCI) state associated with an RS, of the set of RSs, to be activated for a communication. The UE may perform the communication using the identified TCI state, wherein the identified TCI state is activated within the reduced activation time after the activation signaling is received. Numerous other aspects are described.
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公开(公告)号：US12212442B2
公开(公告)日：2025-01-28
申请号：US17996242
申请日：2020-06-04
Applicant: QUALCOMM Incorporated
Inventor： Tianyang Bai , Yuwei Ren , Junyi Li
Abstract: Certain aspects of the present disclosure provide techniques for radio frequency (RF) sensing. A method that may be performed by a UE generally includes receiving, from a base station (BS), a configuration for the UE to perform RF sensing. The method generally includes transmitting an RF sensing signal based on the configuration. The method generally includes performing one or more measurements of one or more reflections of the RF sensing signal. Certain aspects of the subject matter described in this disclosure can be implemented in a method for wireless communication by a BS. The method generally includes receiving a RF sensing capabilities message from a UE. The method generally includes transmitting, to the UE, a configuration for the UE to perform RF sensing based on the RF sensing capabilities message.
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