公开(公告)号：US20180220257A1

公开(公告)日：2018-08-02

申请号：US15789631

申请日：2017-10-20

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Gowrisankar Somichetty ,  Alberto Rico Alvarino ,  Hao Xu

IPC: H04W4/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may receive a scheduling indicator on a first instance of a control channel. The wireless device may determine that a data transmission is scheduled for the wireless device based at least in part on the received scheduling indicator. The wireless device may identify a first frequency band associated with the data transmission and a second frequency band associated with a second instance of the control channel. The wireless device may identify a third frequency band to monitor based at least in part on the first and second frequency bands and a bandwidth capability of the wireless device. The third frequency band includes the first frequency band. The third frequency band comprises an associated bandwidth that is based at least in part on the bandwidth capability of the wireless device.

公开(公告)号：US11589351B2

公开(公告)日：2023-02-21

申请号：US16332497

申请日：2017-09-29

Applicant: QUALCOMM Incorporated

Inventor： Shashidhar Vummintala ,  Gowrisankar Somichetty ,  Kapil Bhattad ,  Alberto Rico Alvarino

IPC: H04W72/04 ,  H04W72/0453 ,  H04W4/70 ,  H04L5/00 ,  H04B1/713 ,  H04W24/08

Abstract: Certain aspects of the present disclosure provide techniques for higher bandwidth and data rate for enhanced machine type communications (eMTC). According to certain aspects, a method of wireless communication by a user equipment (UE) is provided. The method generally includes determining frequency resources within one or more configured narrowband regions of a system bandwidth to monitor for a transmission and monitoring for the transmission on the determined frequency resources within the one or more narrowband regions of the system bandwidth.

公开(公告)号：US11452094B2

公开(公告)日：2022-09-20

申请号：US16702500

申请日：2019-12-03

Applicant: QUALCOMM Incorporated

Inventor： Gowrisankar Somichetty ,  Kapil Bhattad ,  Alberto Rico Alvarino ,  Xiao Feng Wang ,  Manikandan Chandrasekar

IPC: H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04L5/14 ,  H04L1/00 ,  H04W72/14 ,  H04W88/08 ,  H04W88/02

Abstract: A method, computer-readable medium, and apparatus are provided. In addition, the apparatus may determine a first set of subframes in the narrowband TDD frame structure used for transmitting a downlink control channel to a UE. In one aspect, a last subframe in the first set of subframes may be subframe n. Further, the apparatus may determine a second set of subframes in the narrowband TDD frame structure used for transmitting a downlink data channel to the UE. In certain aspects, a first subframe in the second set of subframes may be delayed based on k0 number of subframes after the subframe n. In certain other aspects, a last subframe in the second set of subframes may be subframe n+k0+x. Additionally, the apparatus may signal first information associated with the k0 number of subframes to the UE in a first delay field in a DCI transmission.

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：US10945265B2

公开(公告)日：2021-03-09

申请号：US16681389

申请日：2019-11-12

Applicant: QUALCOMM Incorporated

Inventor： Gowrisankar Somichetty ,  Kapil Bhattad ,  Alberto Rico Alvarino ,  Xiao Feng Wang ,  Manikandan Chandrasekar

IPC: H04W72/00 ,  H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04L5/14 ,  H04L1/00 ,  H04W72/14 ,  H04W88/08 ,  H04W88/02

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a narrowband TDD frame structure of a group of narrowband TDD frame structures for narrowband communications. The apparatus may transmit a series of repetitions of a narrowband physical downlink channel using the narrowband TDD frame structure. In one aspect, a first portion of repetitions from the series of repetitions may be transmitted in one or more first sets of downlink subframes using a first scrambling sequence. In one aspect, a second portion of repetitions from the series of repetitions may be transmitted in one or more second sets of downlink subframes using a second scrambling sequence.

公开(公告)号：US10939432B2

公开(公告)日：2021-03-02

申请号：US16415963

申请日：2019-05-17

Applicant: QUALCOMM Incorporated

Inventor： Gowrisankar Somichetty ,  Kapil Bhattad ,  Alberto Rico Alvarino ,  Xiao Feng Wang ,  Manikandan Chandrasekar

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04L5/14 ,  H04L1/18 ,  H04W72/14 ,  H04W88/08 ,  H04W88/02

Abstract: There is a need to support TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine to receive a narrowband physical downlink channel in a first subframe in a TDD frame structure of a plurality of TDD frame structures for narrowband communications. The TDD frame structures may include one or more special subframes, and the first subframe may be a downlink subframe. The apparatus may receive the narrowband physical downlink channel in a special subframe of the narrowband TDD frame structure, if the number of downlink OFDM symbols in the special subframe is greater than a predetermined threshold.

公开(公告)号：US10932260B2

公开(公告)日：2021-02-23

申请号：US16460739

申请日：2019-07-02

Applicant: QUALCOMM Incorporated

Inventor： Gowrisankar Somichetty ,  Kapil Bhattad ,  Alberto Rico Alvarino ,  Xiao Feng Wang ,  Manikandan Chandrasekar

IPC: H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04L5/14 ,  H04L1/00 ,  H04W72/14 ,  H04W88/08 ,  H04W88/02

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a TDD frame structure of a group of TDD frame structures for narrowband communications. The apparatus may transmit a series of repetitions of a narrowband physical downlink channel using the narrowband TDD frame structure. In one aspect, a first portion of repetitions from the series of repetitions may be transmitted in one or more first sets of downlink subframes using a first scrambling sequence. In one aspect, a second portion of repetitions from the series of repetitions may be transmitted in one or more second sets of downlink subframes using a second scrambling sequence.

公开(公告)号：US10911192B2

公开(公告)日：2021-02-02

申请号：US16246139

申请日：2019-01-11

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Kirankumar Bhoja Anchan ,  Shashidhar Vummintala ,  Srinivasan Balasubramanian ,  Hao Xu ,  Parvathanathan Subrahmanya ,  Seyed Ali Akbar Fakoorian ,  Peter Gaal ,  Gowrisankar Somichetty

IPC: H04L5/00 ,  H04L29/06 ,  H04W72/12 ,  H04W72/14

Abstract: Aspects of the present disclosure relate to methods and apparatus for optimizing real time services (e.g., such as a voice over Long Term Evolution (LTE) (VoLTE)) for devices with limited communications resources, such as machine type communication (MTC) devices and enhanced MTC (eMTC) devices. In one aspect, a UE determines a first configuration of subframes within at least one radio frame available for the UE and other UEs to use for bundled communications with a BS. The UE receives an indication of one or more subframes within the at least one radio frame that are unavailable for bundled uplink transmissions, and determines a second configuration of subframes to use for bundled communications based on the indication. The UE overrides the first configuration of subframes with the second configuration of subframes, and communicates with the BS using the second configuration of subframes. Numerous other aspects are provided.

公开(公告)号：US10771192B2

公开(公告)日：2020-09-08

申请号：US16045589

申请日：2018-07-25

Applicant: QUALCOMM Incorporated

Inventor： Raghu Hanumantha Gowda ,  Gowrisankar Somichetty ,  Mangesh Shete ,  Swarupa Gandhi Vudata ,  Siva Kishore Reddy Yerrapareddy ,  Karthik Pavan Krishna Bhogaraju ,  Sathish Machukari ,  Nilotpal Dhar ,  Chun-Hao Hsu ,  Avinash Manda ,  Shashidhar Vummintala ,  Vivek Padi ,  Bishal Maskey ,  Vishu Kumar ,  Bharath Sakinala ,  Venugopal Ramamurthy ,  Vijayvaradharaj Tirucherai Muralidharan

IPC: H04L1/00 ,  H04W52/02 ,  H04W72/04 ,  H04W4/70 ,  H04L1/08

Abstract: Techniques and apparatus for early termination of decoding of communication channels for power saving in narrowband devices are provided. One technique includes monitoring for one or more first repetitions of at least one communication channel from a base station. The device determines, based on the monitoring, whether to refrain from monitoring for one or more second repetitions of the at least one communication channel. The device enters a low power mode if the determination is to refrain from monitoring for the one or more second repetitions of the at least one communication channel.

公开(公告)号：US10560237B2

公开(公告)日：2020-02-11

申请号：US15961329

申请日：2018-04-24

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Zaki ,  Gowrisankar Somichetty ,  Shashidhar Vummintala

IPC: H04W4/00 ,  H04L5/00 ,  H04W72/08

Abstract: The present disclosure provides reduced cell-specific reference signal (CRS) transmissions for evolved machine type communication (eMTC). In one aspect, a network entity may determine at least one narrow band for transmission of a CRS. The network entity may further identify one or more resource blocks proximate the at least one narrow band and transmit the CRS on the narrow band and the one or more proximate resource blocks to a UE. In another aspect, a UE may apply a receive window to filter one or more noise samples outside at least one narrow band allocation, the receive window corresponding to one or more resource blocks located outside the defined number of resource blocks of the at least one narrow band allocation. The UE may further receive the CRS within the at least one narrow band allocation from a network entity in response to applying the receive window.