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公开(公告)号：US11019590B2
公开(公告)日：2021-05-25
申请号：US16284045
申请日：2019-02-25
Applicant: QUALCOMM Incorporated
Inventor： Sony Akkarakaran , Peter Gaal , Muhammad Nazmul Islam , Amir Aminzadeh Gohari , Peter Pui Lok Ang , Tao Luo
Abstract: Certain aspects of the present disclosure relate to communication systems, and more particularly, to interpreting a timing advance (TA) command for members of a timing advance group (TAG), such as different uplink component carriers and/or different bandwidth parts, having different numerologies, such as different subcarrier spacing (SCS). A method that may be performed by a user equipment (UE) includes receiving, from a base station (BS), a TA command. The UE interprets the TA command differently for different members of a same TAG, associated with different numerologies. The UE applies a timing adjustment when transmitting an uplink transmission to the BS based, at least in part, on the interpretation.
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公开(公告)号：US10999857B2
公开(公告)日：2021-05-04
申请号：US16383502
申请日：2019-04-12
Applicant: QUALCOMM Incorporated
Inventor： Karl Georg Hampel , Junyi Li , Sundar Subramanian , Muhammad Nazmul Islam , Navid Abedini
Abstract: Methods, systems, and devices for wireless communication are described. In particular, a backhaul network that may be established between access nodes and/or base stations is shown and described. To support communications via the backhaul network, a synchronized frame structure and unique network topologies may be established. Resources may be allocated to different wireless communication links based on the synchronized frame structure. Occupancy/availability indications are shown and described, which enable the local redistribution of resources to account for variations in signal quality and/or variations in traffic experienced by the backhaul network.
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公开(公告)号：US10993183B2
公开(公告)日：2021-04-27
申请号：US16042780
申请日：2018-07-23
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Nazmul Islam , Jianghong Luo , Sumeeth Nagaraja , Ashwin Sampath , Sundar Subramanian
Abstract: Methods, systems, and devices for wireless communication are described. A base station may identify that data is available to be transmitted to a user equipment (UE) that is operating in a discontinuous reception mode. The base station may transmit, based at least in part on identifying that the data is available to be transmitted to the UE, a wakeup message to the UE using a first transmit beam. The base station may initiate a beam management procedure based at least in part on identifying that the data is available to be transmitted to the UE, to identify a second transmit beam for the base station to use to transmit the available data to the UE, wherein the second transmit beam comprises a narrower beam width than the first transmit beam.
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公开(公告)号：US10945254B2
公开(公告)日：2021-03-09
申请号：US16407672
申请日：2019-05-09
Applicant: QUALCOMM Incorporated
Inventor： Joseph Binamira Soriaga , Muhammad Nazmul Islam , Ozcan Ozturk , Peter Gaal , Wanshi Chen
Abstract: Certain aspects of the present disclosure provide techniques communicating in a wireless network. In one embodiment, a method includes monitoring for a paging downlink control channel comprising downlink control information, wherein the downlink control information comprises a first short message; processing the first short message; determining if the control information further comprises scheduling information; processing the scheduling information if the downlink control information comprises scheduling information and the UE is not in a connected state; and ignoring the scheduling information if the downlink control information comprises scheduling information and the UE is in a connected state.
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公开(公告)号：US10944452B2
公开(公告)日：2021-03-09
申请号：US15618969
申请日：2017-06-09
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Nazmul Islam , Bilal Sadiq , Ashwin Sampath , Sundar Subramanian , Junyi Li , Vasanthan Raghavan
Abstract: Methods, systems, and devices for wireless communication are described. A network device, such as a base station, may transmit a request message to a user equipment (UE). The request message may include a request for the UE to transmit a set of sounding reference signals (SRSs). The set of SRSs may include two (or more) beamformed signals. The network device may receive the set of SRSs according to the request message. The network device may identify, based on a co-phasing parameter associated with the two (or more) beamformed signals, an antenna port precoder configuration to use for communicating with the UE.
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Patent Agency Ranking
公开(公告)号：US10939401B2
公开(公告)日：2021-03-02
申请号：US16450512
申请日：2019-06-24
Applicant: QUALCOMM Incorporated
Inventor： Bilal Sadiq , Navid Abedini , Naga Bhushan , Junyi Li , Joseph Binamira Soriaga , Muhammad Nazmul Islam , Alexandros Manolakos
Abstract: Systems and methods for determining round trip time (RTT) includes a second node, which receives a first signal from a first node at a first time, determines a timing advance based on a first estimated channel response for the first signal, and transmits at a second time, a second signal to the first node, wherein the second time occurs after the first time by an amount of a pre-specified delay for RTT estimation minus the timing advance. The first node transmits the first signal to the second node at an initial time, receives the second signal from the second node, and determines a timing statistic from a second estimated channel response for the second signal, the timing statistic estimated at a third time. The first node determines the RTT as the third time minus the initial time minus the pre-specified delay for RTT estimation.
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公开(公告)号：US10939395B2
公开(公告)日：2021-03-02
申请号：US16035314
申请日：2018-07-13
Applicant: QUALCOMM Incorporated
Inventor： Navid Abedini , Hung Ly , Tao Luo , Bilal Sadiq , Muhammad Nazmul Islam , Sundar Subramanian
Abstract: Methods, systems, and devices for wireless communication are described that provide for synchronization signal (SS) blocks in which synchronization signals and broadcast channel transmissions may be transmitted. Broadcast channel transmissions may be demodulated using SS transmissions, reference signal transmissions, or combinations thereof. Broadcast channel transmissions may be transmitted in a subset of SS block time resources, and synchronization signals may be transmitted in another subset of SS block time resources. Reference signals may be transmitted using tones within the broadcast channel time resources, and may be transmitted at a higher density for portions of the broadcast channel transmission bandwidth that are outside of the SS transmission bandwidth. Waveforms for reference signal transmissions, and information provided by reference signal transmissions may be provided.
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公开(公告)号：US10932270B2
公开(公告)日：2021-02-23
申请号：US15997490
申请日：2018-06-04
Applicant: QUALCOMM Incorporated
Inventor： Juergen Cezanne , Bilal Sadiq , Tao Luo , Sundar Subramanian , Muhammad Nazmul Islam , Junyi Li , Vasanthan Raghavan , Navid Abedini , Sumeeth Nagaraja , Raghu Narayan Challa
Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine whether to perform a beam pair refinement procedure with regard to the UE and a base station; and/or transmit, to the base station, information regarding whether to perform the beam pair refinement procedure. In some aspects, a base station may receive, from a UE, information regarding a beam pair refinement procedure with regard to the UE; and/or perform the beam pair refinement procedure based at least in part on the information. Numerous other aspects are provided.
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公开(公告)号：US10924232B2
公开(公告)日：2021-02-16
申请号：US15357055
申请日：2016-11-21
Applicant: QUALCOMM Incorporated
Inventor： Juergen Cezanne , Sundar Subramanian , Muhammad Nazmul Islam , Bilal Sadiq , Ashwin Sampath , Junyi Li
Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit a subframe that includes physical broadcast channel (PBCH) signals interspersed within beam reference signals, where the subframe may be a synchronization subframe including one or more synchronization signals. In some cases, the beam reference signals from different antenna ports may be code division multiplexed or frequency division multiplexed over multiple frequency tones. A user equipment (UE) may use the beam reference signals to generate channel estimates for the PBCH signals. In some cases, orthogonal cover codes for code division multiplexed signals may be selected to facilitate generation of channel estimates for PBCH signals transmitted using nearby frequency tones.
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公开(公告)号：US20210045132A1
公开(公告)日：2021-02-11
申请号：US17068408
申请日：2020-10-12
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Nazmul Islam , Sundar Subramanian , Junyi Li , Juergen Cezanne , Navid Abedini , Bilal Sadiq , Tao Luo , Ashwin Sampath
Abstract: Techniques are described for wireless communication. One method includes exchanging one or more signals between a first wireless node and a second wireless node, determining, at the first wireless node and based on the one or more signals, a range of correspondence between at least one of a transmit beam of the first wireless node and a receive beam of the first wireless node, determining a difference between indices of the transmit beam of the first wireless node and the receive beam of the first wireless node, and determining an uncertainty region for beam mapping based on the determined difference.
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