公开(公告)号：US11362779B2

公开(公告)日：2022-06-14

申请号：US16515692

申请日：2019-07-18

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Vinod Ramaswamy ,  Gowrisankar Somichetty ,  Wanshi Chen ,  Le Liu ,  Xiao Feng Wang ,  Ayan Sengupta ,  Tae Min Kim ,  Vijayvaradharaj Tirucherai Muralidharan ,  Murali Menon

IPC: H04L5/00 ,  H04W72/04 ,  H04L25/02 ,  H04J11/00 ,  H04W76/27

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a relationship between a first set of antenna ports, used for demodulation reference signals (DMRS) associated with a machine-type communication physical downlink control channel (MPDCCH) and used for the MPDCCH, and a second set of antenna ports used for cell-specific reference signals (CRS); receive CRS on one or more antenna ports of the second set of antenna ports; and receive the MPDCCH using at least the CRS based at least in part on the relationship. Numerous other aspects are provided.

公开(公告)号：US11272496B2

公开(公告)日：2022-03-08

申请号：US16780358

申请日：2020-02-03

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Zaki ,  Ravinder Kumar ,  Vijayvaradharaj Tirucherai Muralidharan ,  Murali Menon

IPC: H04W72/04 ,  H04W8/24 ,  H04L1/00 ,  H04L1/18 ,  H04B17/336 ,  H04B7/01 ,  H04L5/00 ,  H04W24/08

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may retune from a first narrowband carrier to a second narrowband carrier. The UE may determine to retune in one or more symbols of either a first narrowband subframe or a second narrowband subframe based on the number of symbols for the UE to retune and a number of other factors. The other factors may include the start symbol of a downlink channel scheduled in the second narrowband subframe, the number of antenna ports configured for the UE, hybrid automatic repeat request (HARQ) identifier (ID), coding rate or effective coding rate, among others. The UE may determine to retune in the first narrowband subframe, the second narrowband subframe, or in both subframes in order to utilize reference signals transmitted to the UE and reception of all downlink messages scheduled for the UE.

公开(公告)号：US20210243730A1

公开(公告)日：2021-08-05

申请号：US16780358

申请日：2020-02-03

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Zaki ,  Ravinder Kumar ,  Vijayvaradharaj Tirucherai Muralidharan ,  Murali Menon

IPC: H04W72/04 ,  H04W8/24 ,  H04B7/01 ,  H04L1/00 ,  H04L5/00 ,  H04L1/18 ,  H04W24/08 ,  H04B17/336

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may retune from a first narrowband carrier to a second narrowband carrier. The UE may determine to retune in one or more symbols of either a first narrowband subframe or a second narrowband subframe based on the number of symbols for the UE to retune and a number of other factors. The other factors may include the start symbol of a downlink channel scheduled in the second narrowband subframe, the number of antenna ports configured for the UE, hybrid automatic repeat request (HARQ) identifier (ID), coding rate or effective coding rate, among others. The UE may determine to retune in the first narrowband subframe, the second narrowband subframe, or in both subframes in order to utilize reference signals transmitted to the UE and reception of all downlink messages scheduled for the UE.

公开(公告)号：US10764776B2

公开(公告)日：2020-09-01

申请号：US16186358

申请日：2018-11-09

Applicant: QUALCOMM Incorporated

Inventor： Amith Chincholi ,  Murali Menon ,  Liangchi Hsu ,  Nitin Pant

IPC: H04W24/10 ,  H04W36/00 ,  H04W72/12 ,  H04B17/336 ,  H04W4/70 ,  H04W24/02

Abstract: Aspects of the present disclosure provide techniques and apparatus for wireless communication. In one aspect, a method is provided which may be performed by a wireless device such as a user equipment (UE). The method generally includes determining a scheduled occurrence of a measurement gap, wherein the UE measures neighbor cell signal strength during the measurement gap, and adjusting the measurement gap based on at least one criterion.