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公开(公告)号：US20210400667A1
公开(公告)日：2021-12-23
申请号：US16756729
申请日：2018-08-30
Applicant: QUALCOMM Incorporated
Inventor： Chao WEI , Alberto RICO ALVARINO , Le LIU , Wanshi CHEN , Xiao Feng WANG , Hao XU
Abstract: A method, base station (BS), user equipment (UE), apparatus, and computer program product for wireless communication are provided. A BS and a UE may communicate using a narrowband Internet of Things (NB-IoT) communication system. However, a frequency, time, and/or power associated with transmission of a SIB1-NB on a non-anchor carrier may not be configured for NB-IoT. In some aspects, the BS may determine parameters, such as a time domain location parameter, a frequency domain location parameter, a quantity of repetitions, a power boosting parameter, and/or the like for a transmission in NB-IoT. In some aspects, a UE may determine to transmit a connection request message on a different carrier than a random access channel message.
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公开(公告)号：US20210258105A1
公开(公告)日：2021-08-19
申请号：US17248853
申请日：2021-02-10
Applicant: QUALCOMM Incorporated
Inventor： Bharat SHRESTHA , Umesh PHUYAL , Xiao Feng WANG , Alberto RICO ALVARINO , Liangping MA
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine an offset associated with a propagation delay in a network, wherein hybrid automatic repeat request (HARQ) feedback is enabled at the UE, and may monitor for a retransmission of a downlink communication in the network according to the offset. In some aspects, a UE may start a timer associated with monitoring for a retransmission of a downlink communication in a network, wherein HARQ feedback is disabled at the UE, and may monitoring for the retransmission of the downlink communication after starting the timer or after expiration of the timer. Numerous other aspects are provided.
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公开(公告)号：US20210250871A1
公开(公告)日：2021-08-12
申请号：US17165394
申请日：2021-02-02
Applicant: QUALCOMM Incorporated
Inventor： Alberto RICO ALVARINO , Xiao Feng WANG , Liangping MA , Umesh PHUYAL
Abstract: Some techniques and apparatuses described herein enable a user equipment (UE) to autonomously modify one or more transmission parameters, other than a transmit power, for uplink communications after detecting a change in pathloss. The UE may modify the one or more transmission parameters without receiving instructions from a base station, such as in downlink control information, with updated value(s) for the one or more transmission parameters. As a result, the UE and the base station avoid the round trip delay that would otherwise be required to modify the transmission parameter(s) and perform link adaptation. Some techniques and apparatuses described herein apply to non-terrestrial networks with a large round trip delay. Other aspects are described.
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公开(公告)号：US20210227481A1
公开(公告)日：2021-07-22
申请号：US17152693
申请日：2021-01-19
Applicant: QUALCOMM Incorporated
Inventor： Huilin XU , Jun MA , Qiang WU , Xiao Feng WANG , Iyab Issam SAKHNINI , Dan ZHANG , Liangping MA
Abstract: Various aspects relate to adjusting communication timing in response to a switch from one feeder link to another feeder link in a non-terrestrial network. For example, when a satellite moves out of the coverage area of a first ground network entity (or if the first ground network entity is turned off), the satellite switches to a second ground network entity. The resulting switch from a first feeder link for the first ground network entity to a second feeder link for the second ground network entity may cause a timing glitch that adversely affects the UEs under the coverage of the satellite. The disclosure relates in some aspects to sending an indication of the switch and/or a common timing adjust command to all of the UEs affected by the feeder link switch.
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公开(公告)号：US20210203377A1
公开(公告)日：2021-07-01
申请号：US17198837
申请日：2021-03-11
Applicant: QUALCOMM Incorporated
Inventor： Sony AKKARAKARAN , Tao LUO , Xiao Feng WANG , Makesh Pravin JOHN WILSON
IPC: H04B1/7075 , H04B7/212 , H04B7/208 , H04B7/26 , H04W52/32 , H04W52/16 , H04W52/42 , H04L5/00 , H04W52/14 , H04W52/24
Abstract: Certain aspects of the present disclosure relate to methods and apparatus for data transmission in synchronization slots. A method for use by a base station for data transmission in synchronization slots includes transmitting a synchronization signal (SS) burst, wherein different SS blocks of the burst are transmitted using different transmit beams and performing frequency division multiplexing (FDM) or time division multiplexing (TDM) to include one or more other types of signals that need to be multicast and are also transmitted using the different transmit beams
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Patent Agency Ranking
公开(公告)号：US20210058870A1
公开(公告)日：2021-02-25
申请号：US16949615
申请日：2020-11-06
Applicant: QUALCOMM Incorporated
Inventor： Sony AKKARAKARAN , Xiao Feng WANG , Peter GAAL , Tao LUO
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a transmit power control (TPC) command in a grant associated with transmitting an uplink communication. A scheduling delay between the grant and the uplink communication may be a flexible scheduling delay. The UE may sample a TPC state in association with determining a transmit power, and may determine the transmit power based at least in part on the TPC state and the TPC command. In some aspects, a UE may detect a power headroom report (PHR) trigger associated with a carrier of a plurality of carriers. The UE may identify a set of carriers that is to be ignored when calculating a power headroom, and may calculate the power headroom based at least in part on ignoring the identified set of carriers. Numerous other aspects are provided.
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公开(公告)号：US20200313746A1
公开(公告)日：2020-10-01
申请号：US16805642
申请日：2020-02-28
Applicant: QUALCOMM Incorporated
Inventor： Tianyang BAI , Tao LUO , Jung Ho RYU , Kiran VENUGOPAL , Yan ZHOU , Junyi LI , Xiao Feng WANG
Abstract: A UE detects a beam failure on a first CC. The UE determines whether to transmit a BFRQ to a base station on the first CC or a second CC. The UE determines whether to include a NBI report in the BFRQ. The UE transmits the BFRQ to the base station on the first CC or the second CC. The base station receives a BFRQ from a UE on a first CC or a second CC. The base station determines a new beam for the first CC, where the determination of the new beam is based on a RACH procedure when the BFRQ is received on the first CC or a NBI report in the BFRQ when the BFRQ is received on the second CC. The base station initiates a BFR procedure with the UE for the first CC based on the BFRQ and the new beam determination.
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公开(公告)号：US20200245198A1
公开(公告)日：2020-07-30
申请号：US16851856
申请日：2020-04-17
Applicant: QUALCOMM Incorporated
Inventor： Sumeeth NAGARAJA , Tao LUO , Makesh Pravin JOHN WILSON , Sony AKKARAKARAN , Juan MONTOJO , Shengbo CHEN , Wooseok NAM , Xiao Feng WANG , Kaushik CHAKRABORTY
Abstract: This disclosure generally relates to systems, devices, apparatuses, products, and methods for wireless communication. A communication system may include a user equipment (UE) that receives a configuration for contention-free random access (CFRA) and a configuration for contention-based random access (CBRA). The UE determines a first random access resource. The first random access resource maps to one or more beams from a target base station. The UE determines a beam quality associated with the first random access resource. The UE initiates a random access request using the CFRA when the first random access resource is a contention-free resource, and the beam quality of the first random access resource is above a threshold beam quality. The UE initiates the random access request using the CBRA when the first random access resource is the contention-free resource, and the beam quality of the first random access resource is below the threshold beam quality.
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公开(公告)号：US20200235878A1
公开(公告)日：2020-07-23
申请号：US16747473
申请日：2020-01-20
Applicant: QUALCOMM Incorporated
Inventor： Wei YANG , Yi HUANG , Gokul SRIDHARAN , Peter GAAL , Xiao Feng WANG , Wanshi CHEN , Alexandros MANOLAKOS
Abstract: Wireless communications devices and methods are adapted to facilitate DMRS sequence grouping. In one example, information is obtained for a transmission scheduled with pi/2 BPSK modulation, the transmission including two or more symbols scheduled for a DMRS (DMRS symbols). Respective DMRS sequences may be identified for each of the DMRS symbols, where each DMRS sequence subsequent to another DMRS sequence is dependent on its immediately preceding DMRS sequence, and the transmission may be sent with the identified DMRS sequences in the two or more DMRS symbols. In one example, a first transmission may be sent to schedule a second transmission from another device with pi/2 BPSK modulation, where the second transmission includes two or more DMRS symbols. The scheduled second transmission may be received with at least one DMRS symbol including a DMRS sequence based on its immediately preceding DMRS sequence. Other aspects, embodiments, and features are also included.
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100.发明申请公开(公告)号：US20200099490A1
公开(公告)日：2020-03-26
申请号：US16575976
申请日：2019-09-19
Applicant: QUALCOMM Incorporated
Inventor： Gokul SRIDHARAN , Yi HUANG , Xiao Feng WANG , Wei YANG , Jay Kumar SUNDARARAJAN , Peter GAAL
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a sounding reference signal (SRS) resource set to be used to signal a virtual port used for a physical uplink shared channel (PUSCH) communication, wherein the virtual port is a combination of at least two non-coherent or partially-coherent antenna ports of the UE using precoding and cyclic delay diversity; and transmit an SRS for the at least two non-coherent or partially-coherent antenna ports using one or more resources of the SRS resource set. Numerous other aspects are provided.
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