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公开(公告)号：US11109236B2
公开(公告)日：2021-08-31
申请号：US16182527
申请日：2018-11-06
Applicant: QUALCOMM incorporated
Inventor： Srinivas Yerramalli , Rahul Malik , Kaushik Chakraborty
IPC: H04W16/14 , H04L1/00 , H04L5/00 , H04L1/18 , H04W92/10 , H04L5/14 , H04L27/00 , H04W72/12 , H04W28/02
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive data transmissions on primary cell and transmit feedback for the data transmissions on a secondary cell, where carriers on the secondary cell have a subcarrier spacing that is greater than the subcarrier spacing of carriers on the primary cell. The UE may perform a self-contained transmission by receiving data and transmitting feedback within a single transmission opportunity. The base station may schedule the UE for only downlink transmissions in the primary cell, removing uplink transmission resources and guard periods from slots of primary cell carriers. The UE may transmit other information on the high band cell as well, such as a channel quality indicator or scheduling requests. The base station may apply rate adjustments for downlink transmission in the next slot of a primary cell carrier.
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公开(公告)号：US11064439B2
公开(公告)日：2021-07-13
申请号：US16153166
申请日：2018-10-05
Applicant: QUALCOMM Incorporated
Inventor： Srinivas Yerramalli , Rahul Malik , Tamer Kadous
Abstract: Methods, systems, and devices for wireless communications are described that asynchronous carrier aggregation, including between high frequency band and lower frequency band transmissions. A user equipment (UE) may be configured to monitor transmissions in a first frequency band and a second frequency band. The UE may measure a timing difference between transmissions in the first frequency band and one or more of the transmissions in the second frequency band, and transmit an indication of the timing difference to a base station. The base station may use the timing difference to determine whether the UE is to use asynchronous carrier aggregation. If the base station determines that the UE is to use asynchronous carrier aggregation, the base station may configure the UE to observe at least a minimum amount of delay when conducting uplink signaling via one of the frequency bands.
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公开(公告)号：US20210203384A1
公开(公告)日：2021-07-01
申请号：US17199088
申请日：2021-03-11
Applicant: QUALCOMM INCORPORATED
Inventor： Makesh Pravin John Wilson , Tao Luo , Sony Akkarakaran , Rahul Malik , Kaushik Chakraborty
IPC: H04B7/0408 , H04B7/0413 , H04W72/04 , H04B7/08 , H04B7/06 , H04L5/00
Abstract: Methods, systems, and devices for wireless communication are described. A base station may configure a first sub-band and a second sub-band of a system bandwidth for communication with a user equipment (UE). The base station may determine a spatial quasi co-location (QCL) relationship between the first sub-band and the second sub-band and may transmit signaling to the UE that indicates the determined spatial QCL relationship. Upon receiving the signaling, the UE may derive, based on the indicated spatial QCL relationship, spatial parameters (e.g., beam width, pointing angle, etc.) for communication with the base station via the second sub-band. The spatial parameters may be derived based on spatial parameters used for reception of a downlink transmission from the base station via the first sub-band. Subsequently, the UE may communicate with the base station via the second sub-band using the derived spatial parameters.
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公开(公告)号：US11032808B2
公开(公告)日：2021-06-08
申请号：US15898987
申请日：2018-02-19
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Tao Luo , Sony Akkarakaran , Rahul Malik , Tamer Kadous , Akula Reddy
Abstract: Methods, systems, and devices for wireless communication are described. A base station may identify control information to be transmitted, in a slot, to a user equipment (UE). The base station may determine a configuration for splitting a control resource set for the control information into a first component control resource set and a second component control resource set within a supported bandwidth of the UE. The first component control resource set may be frequency diverse and time diverse from the second component control resource set. The base station may transmit the configuration to the UE.
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公开(公告)号：US10925048B2
公开(公告)日：2021-02-16
申请号：US15910615
申请日：2018-03-02
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Tao Luo , Sony Akkarakaran , Rahul Malik , Akula Reddy , Tamer Kadous
Abstract: Certain aspects of the present disclosure relate to communication systems, and more particularly, to a control resource set (coreset) for transmitting physical downlink control channels using a single-carrier waveform in communications systems operating according to new radio (NR) technologies. In an exemplary method, a base station may determine a first control resource set (coreset) of time and frequency resources within a control region of system bandwidth, to transmit a physical downlink control channel (PDCCH) to a user equipment (UE) and transmit the PDCCH to the UE as a single-carrier waveform via the first coreset of time and frequency resources.
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Patent Agency Ranking
公开(公告)号：US10917795B2
公开(公告)日：2021-02-09
申请号：US15078095
申请日：2016-03-23
Applicant: QUALCOMM Incorporated
Inventor： Tao Luo , Arumugam Chendamarai Kannan , Bin Tian , Rahul Malik
Abstract: Methods, systems, and devices are described for wireless communication at a device. A Long Term Evolution Unlicensed (LTE-U) device may transmit an enhanced preamble that may be understood by Wireless Local Area Network (WLAN) devices, in addition to conveying a characteristic that is detectable by receiving LTE-U devices. The transmitting LTE-U device may generate the enhanced preamble by generating a first training field and a second training field. The characteristic that is detectable by receiving LTE-U devices may be a phase shift between the first and second training fields. Additionally or alternatively, the characteristic may be a sequence or tone mapping of the first or second training field. In some cases, the transmitting LTE-U device may introduce a third training field to the preamble which serves as the characteristic.
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公开(公告)号：US20210029553A1
公开(公告)日：2021-01-28
申请号：US17062378
申请日：2020-10-02
Applicant: QUALCOMM Incorporated
Inventor： Tao Luo , Arumugam Chendamarai Kannan , Bin Tian , Rahul Malik
Abstract: Methods, systems, and devices are described for wireless communication at a device. A Long Term Evolution Unlicensed (LTE-U) device may transmit an enhanced preamble that may be understood by Wireless Local Area Network (WLAN) devices, in addition to conveying a characteristic that is detectable by receiving LTE-U devices. The transmitting LTE-U device may generate the enhanced preamble by generating a first training field and a second training field. The characteristic that is detectable by receiving LTE-U devices may be a phase shift between the first and second training fields. Additionally or alternatively, the characteristic may be a sequence or tone mapping of the first or second training field. In some cases, the transmitting LTE-U device may introduce a third training field to the preamble which serves as the characteristic.
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公开(公告)号：US10892811B2
公开(公告)日：2021-01-12
申请号：US16051053
申请日：2018-07-31
Applicant: QUALCOMM Incorporated
Inventor： Bilal Sadiq , Muhammad Nazmul Islam , Sundar Subramanian , Wanshi Chen , Peter Gaal , Rahul Malik , Heechoon Lee , Yang Yang
IPC: H04B7/06 , H04B7/08 , H04B7/0408 , H04W74/08 , H04W24/10 , H04W72/04 , H04W16/28 , H04L5/00 , H04W76/19 , H04W36/30 , H04W36/06 , H04W80/02
Abstract: Systems, methods, and apparatuses for performing a beam recovery procedure using a second CC are disclosed. A UE may perform a beam recovery procedure using two component carriers (CCs): for example, CC1 may be a beam formed millimeter wave (MMW) carrier having a beam recovery procedure and CC2 may be an assisting carrier such as a sub-6 GHz carrier. In a first example, a UE may trigger beam recovery for CC1 (on CC2), generate a beam measurement report, and transmit the beam report on resources allocated for uplink transmission on CC2. In a second example, a new scheduling request (SR) may be defined on CC1 for CC2 beam recovery. In a third example, RACH resources or procedures on CC2 may be used to perform the beam recovery for CC1.
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公开(公告)号：US10834782B2
公开(公告)日：2020-11-10
申请号：US16180938
申请日：2018-11-05
Applicant: QUALCOMM Incorporated
Inventor： Rahul Malik , Srinivas Yerramalli , Kaushik Chakraborty , Tamer Kadous
IPC: H04W88/06 , H04W74/08 , H04L27/26 , H04W76/27 , H04W8/24 , H04L5/00 , H04W76/15 , H04W88/08 , H04W36/06 , H04W88/02
Abstract: Methods, systems, and devices for wireless communications are described that provide for activating and deactivating high-band connections, such as millimeter wave (mmW) connections while maintaining a low-band connection, based on a state of a user equipment (UE). An initial low-band connection, such as a connection that uses lower frequencies than mmW frequencies, may be established by a UE and a base station, and the base station may configure the UE for one or more high-band connections with one or more high-band base stations. The base station may provide an activation command to the UE to activate a high-band connection, and the UE may determine a currently supported mode for the activated high-band connection and establish the high-band connection based on the currently supported mode.
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公开(公告)号：US10716120B2
公开(公告)日：2020-07-14
申请号：US16107290
申请日：2018-08-21
Applicant: QUALCOMM Incorporated
Inventor： Srinivas Yerramalli , Rahul Malik
Abstract: Methods, systems, and devices for wireless communication are described. Some wireless communications systems may support multi-band operation. Different frequency bands may experience different communication characteristics (e.g., frequency-dependent fading), which may result in undesirable interference patterns and/or coverage gaps. The described techniques provide for channel access methods for multi-band operation. The channel access methods may allow for improved throughput for a wireless communications system. Additionally or alternatively, the described techniques may improve energy efficiency for communicating devices, reduce signaling overhead, or otherwise benefit a wireless communications system. Generally, the described techniques provide for efficient anchoring of high-band communications to low-band transmissions.
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