公开(公告)号：US20230133797A1

公开(公告)日：2023-05-04

申请号：US17514996

申请日：2021-10-29

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Peter Gaal ,  John Edward Smee ,  Pushkar Bajirao Kulkarni ,  Hari Sankar ,  Sanghoon Kim ,  Seyong Park

IPC: H04L27/26 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a transmitting device may perform a pre-distortion of a signal on a resource allocation for the signal and using discrete Fourier transform (DFT)-domain processing. For example, the transmitting device may perform a first frequency-domain (FD) to time-domain (TD) transform, which may be an example of an inverse DFT (IDFT), on a first set of FD symbols to obtain a first set of TD samples. A size of the first FD to TD transform may be based on the resource allocation for the signal. The transmitting device may perform a crest factor reduction (CFR) function on the first set of TD samples to pre-distort the signal in the TD (e.g., in the IDFT domain), which may enable the transmitting device to avoid out-of-band (OOB) emission or otherwise have greater control over where the pre-distortion contributes energy.

公开(公告)号：US20230064736A1

公开(公告)日：2023-03-02

申请号：US18055026

申请日：2022-11-14

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Wanshi Chen ,  Linhai He ,  Hung Dinh Ly ,  Seyong Park

IPC: H04W74/00 ,  H04W74/08 ,  H04L5/10 ,  H04W76/27 ,  H04L1/00 ,  H04W56/00 ,  H04W76/11 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described that relate to a two-step random access procedure. Generally, the described techniques allow different configurations for a first message of a random access procedure depending on a connected-state of the user equipment (UE) performing the random access procedure. A base station may transmit configuration information to the UE and the UE may use the configuration information to determine resources, coding, block size, or other factors for transmitting the first message based on the radio resource control (RRC) connected state of the UE. The UE may then monitor for a random access response from the base station based on the first message from the UE.

公开(公告)号：US20230018439A1

公开(公告)日：2023-01-19

申请号：US17956724

申请日：2022-09-29

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Seyong Park ,  Wei Yang

IPC: H04W74/08 ,  H04W72/04 ,  H04W56/00

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for a user equipment (UE) to adjust a random access message that is transmitted to a base station in an asynchronous uplink transmission. The UE may use a constrained mapping of time and frequency resources for the random access message or transmit all portions of the message in a continuous transmission. The UE may also adjust the timing of the portions of the message. The base station may use a portion of the message, such as a preamble, to perform channel estimation for another portion of the message, such as a payload, to improve decoding of the transmitted message. Additionally, the UE may configure a waveform of the message to improve the continuous transmission of the message, for example by reducing interference between portions of the message.

公开(公告)号：US11496255B2

公开(公告)日：2022-11-08

申请号：US15940710

申请日：2018-03-29

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Seyong Park ,  Hao Xu ,  Yi Huang

IPC: H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04L1/00 ,  H04L1/18 ,  H04W88/08 ,  H04W88/02 ,  H04J1/02

Abstract: A method and apparatus for improved transmission of ACK and NACK bits to a base station The example method may determine a distance between a first UE and a second UE based on one or more of a sequence length, a number of hypothesis, or a number of UEs sharing an OFDM symbol. The example method may determine a plurality of cyclic shifts for each of the first UE and the second UE. The example method may assign one or more sequences to each UE. The example method may receive, at the base station, a multiplexed signal, wherein the multiplexed signal includes at least one bit of uplink control information (UCI) from the first UE and the second UE multiplexed on an uplink short burst transmitted via the OFDM symbol. The method may enable the receipt of UCI from multiple UEs in a multiplexed signal.

公开(公告)号：US11388716B2

公开(公告)日：2022-07-12

申请号：US17010572

申请日：2020-09-02

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wanshi Chen ,  Seyedkianoush Hosseini ,  Peter Gaal ,  Renqiu Wang ,  Seyong Park

IPC: H04W72/04 ,  H04W52/36 ,  H04W52/32 ,  H04W24/10 ,  H04W72/12 ,  H04W88/06

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for a power headroom report for multiple radio access technologies (RATs). A user equipment (UE) may support multiple RATs that correspond to different transmission time intervals (TTIs). A UE may determine a reporting schedule for power headroom reports (PHRs) for a first RAT and a second schedule for PHRs for a second RAT. The UE may generate a PHR for the first RAT and a companion PHR for the second RAT, and may transmit the PHR and companion PHR based at least in part on the first PHR schedule. In some examples, the UE may receive a PHR type from the base station, and may determine a joint PHR based on the type. The UE may determine a joint PHR schedule based on a granularity of supported RATs.

公开(公告)号：US11329851B2

公开(公告)日：2022-05-10

申请号：US16709621

申请日：2019-12-10

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Seyong Park ,  Yi Huang ,  Peter Gaal

IPC: H04L27/26

Abstract: Some aspects described herein relate to determining a length for a sequence for communicating a signal, determining a reduced length as a largest prime number that is smaller than a fraction of the length, generating a Zadoff-Chu sequence based on the reduced length, extending the Zadoff-Chu sequence to be of the length to generate the sequence of the length, and communicating the signal based on the generated sequence.

公开(公告)号：US11259248B2

公开(公告)日：2022-02-22

申请号：US16131276

申请日：2018-09-14

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Yi Huang ,  Renqiu Wang ,  Seyong Park ,  Tao Luo ,  Peter Gaal ,  Alexandros Manolakos

IPC: H04W72/00 ,  H04W52/14 ,  H04L5/00 ,  H04W76/27 ,  H04W52/24 ,  H04W52/34 ,  H04L27/26 ,  H04W52/32

Abstract: Aspects of the present disclosure provide techniques for handling power transitions in transmissions in new radio (NR) devices. An exemplary method includes changing from using a first transmit power during a first portion of a transmission to a second transmit power during a second portion of the transmission, and taking action to mitigate a potential phase coherence loss associated with the changing from the first transmit power to the second transmit power.

公开(公告)号：US11251915B2

公开(公告)日：2022-02-15

申请号：US15979049

申请日：2018-05-14

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Yi Huang ,  Wanshi Chen ,  Peter Gaal ,  Seyong Park ,  Hao Xu

IPC: H04L5/00 ,  H04W52/34 ,  H04W52/28 ,  H04W52/14 ,  H04W52/24 ,  H04W52/32 ,  H04W52/36 ,  H04W72/04 ,  H04W52/06 ,  H04W52/42 ,  H04W52/26

Abstract: Various aspects described herein relate to techniques for uplink transmissions in wireless communication systems. In an aspect, a method includes receiving, by a user equipment (UE), hopping information for two consecutive symbols, generating, by the UE, a first symbol of the two consecutive symbols using a format, generating, by the UE, a second symbol of the two consecutive symbols based on the format and the hopping information, and transmitting, by the UE, the two consecutive symbols in an uplink signal.

公开(公告)号：US11224077B2

公开(公告)日：2022-01-11

申请号：US16922710

申请日：2020-07-07

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Wanshi Chen ,  Seyong Park ,  Alexandros Manolakos ,  Joseph Binamira Soriaga ,  Krishna Kiran Mukkavilli

IPC: H04W74/08 ,  H04W64/00

Abstract: In an aspect, a user equipment (UE) determines a resource configuration and a transmit power for a physical random access channel (PRACH) preamble sequence and/or a configuration and a transmit power for a physical uplink shared channel (PUSCH) resource unit (PRU) based on positioning information of the UE relative to the base station, the speed of the UE relative to the base station, and/or a radio resource control (RRC) state of the UE, transmits, to the base station, a message comprising the PRACH preamble sequence on a PRACH occasion and a payload on a PRU occasion based on the determined resource configuration and transmit power for the PRACH preamble sequence and/or the determined resource configuration and transmit power for the PRU, and receives, from the base station, a second message comprising information on a physical downlink control channel (PDCCH) and a payload on a physical downlink shared channel (PDSCH).

公开(公告)号：US20210360448A1

公开(公告)日：2021-11-18

申请号：US17231281

申请日：2021-04-15

Applicant: QUALCOMM Incorporated

Inventor： Yuchul Kim ,  Huilin Xu ,  Hwan Joon Kwon ,  Peter Pui Lok Ang ,  Jay Kumar Sundararajan ,  Krishna Kiran Mukkavilli ,  Yeliz Tokgoz ,  Jing Lei ,  Tingfang Ji ,  Ravi Agarwal ,  Seyong Park

IPC: H04W24/08 ,  H04W72/04 ,  H04L1/16 ,  H04L1/08 ,  H04W72/12 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, otherwise known as a user equipment (UE) may transmit capability information including an indication of a discontinuous monitoring delay period. The UE may receive a message including an indication to adjust monitoring of a physical downlink control channel (PDCCH), and monitor for the PDCCH during the discontinuous monitoring delay period. The UE may adjust monitoring for the PDCCH following the discontinuous monitoring delay period during a temporal period based on the received indication to adjust monitoring of the PDCCH. In some examples, at least one of physical downlink shared channel (PDSCH) reception, downlink reference signal monitoring, uplink reference signal transmissions, and channel reporting is enabled during the temporal period while monitoring of the PDCCH is adjusted.