公开(公告)号：US20230413037A1

公开(公告)日：2023-12-21

申请号：US18035490

申请日：2021-09-20

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Alberto RICO ALVARINO ,  Timo Ville VINTOLA

IPC: H04W8/22 ,  H04L5/00 ,  H04W72/1268 ,  H04B7/06 ,  H04W72/231

CPC classification number: H04W8/22 ,  H04L5/0051 ,  H04W72/1268 ,  H04B7/0639 ,  H04W72/231

Abstract: A method for wireless communication by a user equipment (UE) includes transmitting, to a base station, an uplink capability message indicating a coherent uplink multiple-in-multiple-out (MIMO) capability associated with coherent transmission characteristics. The method also includes receiving, from the base station, a switch parameter that configures the UE for a transmission chain switch. The method further includes receiving, from the base station, a switching message that triggers the transmission chain switch between a reference signal (RS) transmission and a scheduled data communication. The method still further includes transmitting the data communication according to one or more non-coherent transmission characteristics based on the transmission chain switch being triggered between the RS transmission and the scheduled data communication.

公开(公告)号：US20230309024A1

公开(公告)日：2023-09-28

申请号：US18020075

申请日：2021-10-05

Applicant: QUALCOMM Incorporated

Inventor： Ryan Scott Castro SPRING ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Alexandros MANOLAKOS ,  Krishna Kiran MUKKAVILLI ,  Timo Ville VINTOLA

IPC: H04W52/24 ,  H04W52/36

CPC classification number: H04W52/242 ,  H04W52/367

Abstract: Method and apparatus to signal insertion loss for SRS antenna switching. The apparatus determines an insertion loss for each antenna of a plurality of antennas. The apparatus generates an offset matrix correction based at least on the insertion loss for each antenna of the plurality of antennas. The apparatus transmits the offset matrix correction to a base station. The apparatus may transmit an SRS, at a maximum power, from each antenna of the plurality of antennas to each receive antenna of the base station. The apparatus may collect insertion loss information for each antenna of the plurality of antennas. The insertion loss information indicates at least a power difference for each of the plurality of antennas at the UE.

公开(公告)号：US20230065305A1

公开(公告)日：2023-03-02

申请号：US17759946

申请日：2020-04-09

Applicant: QUALCOMM Incorporated

Inventor： Linhai HE ,  Ruiming ZHENG ,  Timo Ville VINTOLA ,  Masato KITAZOE

IPC: H04W52/36 ,  H04W52/14 ,  H04W72/14

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine an average energy level radiated by the UE over a time period. The UE may determine whether the average energy level radiated by the UE over the time period exceeds a maximum permissible exposure (MPE) limit. The UE may transmit, to base station, a medium access control (MAC) control element (MAC-CE) that includes information related to a power management maximum power reduction (P-MPR) applied at the UE and/or an uplink duty cycle in effect at the UE based at least in part on the average energy level radiated by the UE over the time period exceeding the MPE limit. Numerous other aspects are provided.

公开(公告)号：US20190260456A1

公开(公告)日：2019-08-22

申请号：US16274359

申请日：2019-02-13

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Tao LUO ,  Valentin Alexandru GHEORGHIU ,  Raghu CHALLA ,  Ruhua HE ,  Yong LI ,  Timo Ville VINTOLA

IPC: H04B7/06 ,  H04W24/08 ,  H04L1/18

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for providing beam switch latency using communications systems operating according to new radio (NR) technologies. For example, the method generally includes determining a latency associated with a beam switch from a source antenna array module to a target antenna array module when the target module is in a low power mode; and signaling a base station to use the determined latency after sending a command for the beam switch.

公开(公告)号：US20190222326A1

公开(公告)日：2019-07-18

申请号：US16247242

申请日：2019-01-14

Applicant: QUALCOMM Incorporated

Inventor： Jeremy Darren DUNWORTH ,  Timo Ville VINTOLA ,  Nicholas Michael CARBONE ,  Seyed Aidin BASSAM ,  Vladimir APARIN ,  Udara FERNANDO

IPC: H04B17/13 ,  H04B1/04 ,  H04W72/12

CPC classification number: H04B17/13 ,  H03F3/24 ,  H03F2200/451 ,  H04B1/04 ,  H04B17/102 ,  H04B2001/0408 ,  H04W52/367 ,  H04W72/1278 ,  H04W88/02

Abstract: Certain aspects of the present disclosure provide systems and methods for performing a power amplifier characterization. One example method generally includes determining, by a user equipment, if a condition associated with a power amplifier characterization is met. In certain aspects, the method includes determining, by the user equipment, a calibration gap after the condition is met. The method also includes performing, by the user equipment, the power amplifier characterization of the one or more power amplifiers of the user equipment during the calibration gap.

公开(公告)号：US20190081840A1

公开(公告)日：2019-03-14

申请号：US16126332

申请日：2018-09-10

Applicant: QUALCOMM Incorporated

Inventor： Seyong PARK ,  Peter GAAL ,  Yi HUANG ,  Renqiu WANG ,  Sony AKKARAKARAN ,  Timo Ville VINTOLA ,  Tao LUO ,  Feng WANG

IPC: H04L27/26 ,  H04L27/34 ,  H04L27/36

Abstract: Certain aspects of the present disclosure relate to methods and apparatus relating to reference signal design for Pi/2-binary phase shift keying (Pi/2-BPSK) modulation with frequency domain spectral shaping (FDSS). In certain aspects, a method includes generating a set of Gold sequences each having a length and adjusting the length of each of the Gold sequences in the set of Gold sequences. The method also includes applying a phase rotation to each of the Gold sequences in the set of Gold sequences and modulating each of the Gold sequences in the set of Gold sequences by a DFT-s-OFDM with frequency domain spectral shaping (FDSS). The method further includes selecting one or more sequences from the set of modulated Gold sequences based on a parameter and transmitting the one or more sequences to a user equipment (UE) or a base station (BS).

公开(公告)号：US20180368078A1

公开(公告)日：2018-12-20

申请号：US16011261

申请日：2018-06-18

Applicant: QUALCOMM Incorporated

Inventor： Timo Ville VINTOLA ,  Peter GAAL ,  Alberto RICO ALVARINO ,  Yi HUANG ,  Vishal MAHAJAN ,  Andrew Puayhoe SEE ,  Alexandros MANOLAKOS

IPC: H04W52/32 ,  H04L5/00 ,  H04B7/06 ,  H04W52/14

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for wireless communication. In certain aspects, the method generally includes determine a transmission power for each of at least one first sounding reference signal (SRS) to be transmitted using at least one first antenna, wherein the determination is based on whether the at least one first SRS is transmitted using an amplifier of a transmit chain configured for transmissions using a second antenna, and transmitting the at least one first SRS based on the determination.