公开(公告)号：US11438887B2

公开(公告)日：2022-09-06

申请号：US16738912

申请日：2020-01-09

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Peter Gaal ,  Wanshi Chen ,  Kiran Venugopal ,  Jung Ho Ryu

IPC: H04W72/04 ,  H04W24/10

Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit a first downlink grant (e.g., a PDCCH transmission) for a first data transmission (e.g., a PDSCH transmission) over a first component carrier; the first data transmission over a second component carrier; and a second downlink grant (e.g., another PDCCH transmission) for a second data transmission (e.g., another PDSCH transmission) over the second component carrier. A user equipment (UE) receives the first data transmission over a first beam and may use the first beam for receiving the second data transmission. Additionally or alternatively, the UE may receive a configuration message indicating a set of TCI states for downlink data transmissions to the UE; identify one or more reference signals monitor for beam failure detection (BFD), identify one or more BFD beams, monitor the identified one or more reference signals; and selectively trigger a beam failure reporting procedure.

公开(公告)号：US11388731B2

公开(公告)日：2022-07-12

申请号：US17069671

申请日：2020-10-13

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Sony Akkarakaran ,  Wooseok Nam ,  Sumeeth Nagaraja ,  Yang Yang

IPC: H04W72/08 ,  H04L5/00 ,  H04L1/00 ,  H04W72/04

Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for code rate selection for control channels. An exemplary method generally includes selecting, from a set of code rates, a code rate to be used to encode a stream of bits using a polar code, based on at least one of a downlink control channel aggregation size, an uplink control channel assignment, or a payload size of the stream of bits, encoding the stream of bits using the polar code and the selected code rate, and transmitting the encoded stream of bits.

公开(公告)号：US11362878B2

公开(公告)日：2022-06-14

申请号：US16197085

申请日：2018-11-20

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Hung Dinh Ly ,  Muhammad Nazmul ,  Heechoon Lee

IPC: H04L27/26 ,  H04W48/16 ,  H04W48/12 ,  H04L5/00 ,  H04J3/06

Abstract: Techniques and devices for signaling control and system information are provided. In one aspect, a base station determines a type of multiplexing and a periodicity for transmission of remaining minimum system information (RMSI). The type of multiplexing is for multiplexing the RMSI with a synchronization signal (SS) block. The base station generates an indicator that signals the type of multiplexing and the periodicity. In another aspect, a user equipment (UE) identifies the indicator and determines the type of multiplexing and the periodicity based on the indicator. The UE processes the transmission of RMSI based on the type of multiplexing and the periodicity. Other aspects and features are also claimed and described.

公开(公告)号：US11336407B2

公开(公告)日：2022-05-17

申请号：US16405442

申请日：2019-05-07

Applicant: QUALCOMM INCORPORATED

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Xiao feng Wang ,  Sony Akkarakaran ,  Wooseok Nam ,  Sumeeth Nagaraja ,  Kaushik Chakraborty ,  Shengbo Chen

IPC: H04W16/14 ,  H04L5/00 ,  H04W76/15 ,  H04L27/26 ,  H04W72/04

Abstract: Wireless communications systems and methods related to reusing long-term evolution (LTE) resources for new radio (NR) system operations are provided. A UE receives, from a base station, a reference signal configuration of a first network of a long-term evolution (LTE) radio access technology (RAT). The UE and the base station are associated with a second network of another RAT. The reference signal configuration indicates at least a number of antenna ports associated with a reference signal of the first network. The UE determines a location of the reference signal associated with the reference signal configuration and receives, from the base station, a data signal of the second network based at least on the location of the reference signal of the first network.

公开(公告)号：US11324028B2

公开(公告)日：2022-05-03

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

IPC: H04W72/12 ,  H04W48/12 ,  H04W76/27 ,  H04L27/26 ,  H04L5/00

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.

公开(公告)号：US11283490B2

公开(公告)日：2022-03-22

申请号：US16431491

申请日：2019-06-04

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Tao Luo ,  Kaushik Chakraborty ,  Sony Akkarakaran ,  Makesh Pravin John Wilson ,  Shengbo Chen

IPC: H04B7/0417 ,  H04W52/02 ,  H04W56/00

Abstract: A user equipment apparatus determines whether a transmission is received from a base station within a time window and skips measurement of a reference signal during a subsequent period, when a transmission is received from the base station within the time window. A base station apparatus configures a UE to monitor one or more reference signals associated with a beam pair link and transmits a first signal in a transmission to the UE. The base station determines whether the transmission is received at the UE within a time window and determines whether to transmit a reference signal, based on whether the transmission is received at the UE within the time window. Upon determining that the transmission was received at the UE, the base station may skip transmission of the reference signal or modify a time, a frequency, a power, and/or a reference signal offset for the reference signal.

公开(公告)号：US11265880B2

公开(公告)日：2022-03-01

申请号：US15708390

申请日：2017-09-19

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Tao Luo ,  Makesh Pravin John Wilson ,  Sony Akkarakaran

IPC: H04W72/04 ,  H04W16/28 ,  H04W36/00 ,  H04B7/0408 ,  H04B7/06 ,  H04L5/00 ,  H04B7/08

Abstract: Certain aspects of the present disclosure provide techniques for using beam sets for mobility management. A BS serving the UE may transmit, to the UE, information regarding one or more beam sets, wherein each of the beam sets comprise one or more reference beams used to transmit a reference signal. The BS may transmit, to the UE, one or more mobility parameters, wherein the mobility parameters are associated with the reference beams and one or more mobility event triggers. The BS may receive, from the UE, an indication of a detected mobility event, the mobility event is detected based, at least in part, on the mobility parameters. The BS may take one or more actions based, at least in part, on the indication. A UE may perform corresponding steps as described herein.

公开(公告)号：US11240863B2

公开(公告)日：2022-02-01

申请号：US16735378

申请日：2020-01-06

Applicant: QUALCOMM Incorporated

Inventor： Kiran Venugopal ,  Jung Ho Ryu ,  Tianyang Bai ,  Makesh Pravin John Wilson ,  Tao Luo ,  Yan Zhou

IPC: H04W76/18 ,  H04W76/15 ,  H04W72/12 ,  H04W24/08 ,  H04W72/04 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communications are described that allow secondary cell (SCell) beam failure recovery using a primary cell (PCell). A user equipment (UE) may transmit, via the PCell, an indication of a beam failure of the SCell in a scheduling request (SR) or in a dedicated SR message. After receiving the indication, the base station may request a report from the UE or alternatively, may monitor a set of resources for a report without transmitting a request to the UE. The report may be transmitted via the PCell and may include an indication of a selected beam to use for subsequent communications on the SCell. Based on the report, the base station may modify its transmission configuration for the SCell and communicate with the UE via the selected beam.

公开(公告)号：US11233543B2

公开(公告)日：2022-01-25

申请号：US16942192

申请日：2020-07-29

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Tao Luo ,  Makesh Pravin John Wilson ,  Sony Akkarakaran ,  Xiao Feng Wang ,  Wooseok Nam

IPC: H04B7/0408 ,  H04B7/06 ,  H04W74/08 ,  H04B17/309 ,  H04L1/16

Abstract: A user equipment (UE) may measure signal characteristics of a beam reference signal and determine, based on the measured signal characteristics, a beam repetition and diversity (R/D) mode to be used in communications between the UE and a base station. In some examples, UE feedback to the base station may include an indication of the determined beam R/D mode, as well as channel quality information associated with one or more beams to which the determined beam R/D mode is to be applied and/or operating parameters (e.g., a mixed beam repetition and diversity pattern) associated with the beam R/D mode.

公开(公告)号：US11218906B2

公开(公告)日：2022-01-04

申请号：US16784631

申请日：2020-02-07

Applicant: QUALCOMM INCORPORATED

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Jing Jiang ,  Sundar Subramanian ,  Sony Akkarakaran ,  Atul Maharshi ,  Krishna Kiran Mukkavilli

IPC: H04W28/04 ,  H04L27/00 ,  H04L5/00 ,  H04W72/04 ,  H04W88/02

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may report a phase-noise compensation reference signal (PCRS) configuration to a base station to enable per-UE PCRS signaling. For example, a UE may operate in a wireless communications system using carrier frequencies greater than 6 GHz, which may be affected by phase noise. The UE may accordingly determine a PCRS configuration based on a capability to receive signals. The PCRS configuration may include a resource mapping for one or more PCRS, a number of PCRS ports used for PCRS, a multiplexing scheme for one or more PCRS ports, or the UE's phase noise estimation capability. The UE may then transmit a reporting message including the PCRS configuration to a base station. The base station may use the PCRS configuration for PCRS transmissions to the UE.