公开(公告)号：US10595225B2

公开(公告)日：2020-03-17

申请号：US15436531

申请日：2017-02-17

Applicant: QUALCOMM Incorporated

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

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

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.

公开(公告)号：US10251172B2

公开(公告)日：2019-04-02

申请号：US15461192

申请日：2017-03-16

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Tao Luo ,  Sundar Subramanian ,  Muhammad Nazmul Islam ,  Bilal Sadiq ,  Ashwin Sampath ,  Juergen Cezanne ,  Junyi Li ,  Krishna Kiran Mukkavilli ,  Durga Prasad Malladi ,  Ozge Koymen ,  Atul Maharshi

IPC: H04W4/00 ,  H04W72/04 ,  H04W24/02 ,  H04B7/0408 ,  H04L5/00 ,  H04L27/26

Abstract: In wireless communication systems that support 5th generation wireless systems (5G) or New Radio (NR) protocols, subframes used for communication may have different numerology options. Numerology options may refer to the characteristics of the subframe such as a tone spacing within each symbol of the subframe, a symbol duration for each symbol of the subframe, a number of symbols in the subframe, etc. A subframe may include a control channel (e.g., the Physical Downlink Control Channel (PDCCH)) and a data channel (e.g., the Physical Downlink Shared Channel (PDSCH)). In an aspect, the control channel and the data channel within the subframe may have different numerologies. As such, a need exists to signal the numerology of the subframe to users and to determine whether and how to multiplex the control channel and the data channel into the subframe.

公开(公告)号：US20180139712A1

公开(公告)日：2018-05-17

申请号：US15713167

申请日：2017-09-22

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Bilal Sadiq ,  Sundar Subramanian ,  Junyi Li ,  Muhammad Nazmul Islam ,  Atul Maharshi ,  Juergen Cezanne ,  Ashwin Sampath

IPC: H04W56/00 ,  H04L27/26

CPC classification number: H04W56/0005 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2666 ,  H04L27/2675 ,  H04L27/2692 ,  H04W56/00 ,  H04W56/0035

Abstract: Methods, systems, and devices for wireless communication are described that provide for the indication of communication information using a correlation between synchronization signals transmitted by a base station for cell acquisition. The communication information may include a physical channel timing parameter such as synchronization periodicity, a physical broadcast channel (PBCH) periodicity, a beam sweep periodicity, or a cyclic prefix (CP) type. Communication information may also indicate the presence of a physical broadcast channel (PBCH) transmission or a mobility reference signal (MRS) transmission. The correlation may be a phase shift between multiple signals or may be based on precoding matrices used during transmission processing of the synchronization signals across subcarriers and antenna ports.