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.

公开(公告)号：US20220417774A1

公开(公告)日：2022-12-29

申请号：US17898125

申请日：2022-08-29

Applicant: Qualcomm Incorporated

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

IPC: H04W24/08 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may monitor a first control channel in a first frequency band. The UE may determine that a bandwidth capability of the UE supports communicating on the first frequency band and at least a second frequency band. The UE may perform a channel measurement procedure on the first frequency band and the second frequency band concurrently. The UE may transmit a channel feedback message including information associated with the channel measurement procedure.

公开(公告)号：US11431394B2

公开(公告)日：2022-08-30

申请号：US16476593

申请日：2018-01-19

Applicant: Qualcomm Incorporated

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

IPC: H04B7/06 ,  H04W8/22 ,  H04W24/10 ,  H04W28/20 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may monitor a first control channel in a first frequency band. The UE may determine that a bandwidth capability of the UE supports communicating on the first frequency band and at least a second frequency band. The UE may perform a channel measurement procedure on the first frequency band and the second frequency band concurrently. The UE may transmit a channel feedback message including information associated with the channel measurement procedure.

公开(公告)号：US10560220B2

公开(公告)日：2020-02-11

申请号：US15980084

申请日：2018-05-15

Applicant: QUALCOMM Incorporated

Inventor： Vijayvaradharaj Tirucherai Muralidharan ,  Gowrisankar Somichetty ,  Shashidhar Vummintala ,  Kapil Bhattad ,  Dominique Francois Bressanelli

IPC: H04L1/00 ,  H04L5/00 ,  H04W72/12 ,  H04L1/18 ,  H03M13/29

Abstract: Aspects of the disclosure relate to techniques for mitigating the decoding errors observed at the receiver as a result of puncturing symbols between consecutive subframes having the same transmission direction. To reduce the decoding errors, a plurality of transmission options, each including a number of resource blocks and a modulation and coding scheme (MCS), may be identified. In addition, each transmission option may be associated with one or more puncturing patterns that hinder decoding of a codeword at the receiver. The base station or user equipment (UE) may then select or modify at least one aspect of a scheduling decision involving the communication of the codeword in a given subframe of at least two consecutive subframes to minimize decoding errors. For example, a selected puncturing pattern or a transport block size associated with a selected transmission option may be modified.

公开(公告)号：US10200918B2

公开(公告)日：2019-02-05

申请号：US15681637

申请日：2017-08-21

Applicant: QUALCOMM Incorporated

Inventor： Achaleshwar Sahai ,  Yi Su ,  Shashidhar Vummintala ,  Masato Kitazoe

IPC: H04B7/14 ,  H04W36/00 ,  H04L1/08 ,  H04L5/00 ,  H04W72/00

Abstract: The present disclosure provides a mechanism that may allow a UE to determine whether PBCH repetition is enabled in the target cell without performing a hypothesis test. For example, the apparatus may receive a handover message from a serving cell. In an aspect, the handover message may be associated with a handover procedure to a target cell. In addition, the apparatus may determine whether to perform a hypothesis test to determine if a PBCH repetition is enabled in the target cell based on the handover message. In one example, the apparatus may determine not to perform the hypothesis test when the handover message includes information that indicates if the PBCH repetition is enabled in the target cell. In another example, the apparatus may determine to perform the hypothesis test when the handover message does not include information that indicates if the PBCH repetition is enabled in the target cell.

公开(公告)号：US11540111B2

公开(公告)日：2022-12-27

申请号：US17209018

申请日：2021-03-22

Applicant: QUALCOMM Incorporated

Inventor： Vishnu Namboodiri Karakkad Kesavan Namboodiri ,  Shashidhar Vummintala ,  Suresh Sanka

IPC: H04W8/18 ,  H04W8/20 ,  H04B17/318 ,  H04W76/11 ,  H04W24/10 ,  H04W8/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first subscriber identity module (SIM) of a user equipment (UE) may detect that the UE is operating in a high mobility environment. The first SIM of the UE may transmit, to a second SIM operating in an idle mode, an indication that the UE is operating in the high mobility environment and an indication of a first frequency error estimation associated with the first SIM. The second SIM of the UE may operate in a high mobility mode using a second frequency error estimation that is based at least in part on the first frequency error estimation associated with the first SIM. Numerous other aspects are described.

公开(公告)号：US11076427B2

公开(公告)日：2021-07-27

申请号：US16489096

申请日：2017-11-21

Applicant: QUALCOMM Incorporated

Inventor： Vijayvaradharaj Tirucherai Muralidharan ,  Gowrisankar Somichetty ,  Shashidhar Vummintala ,  Vivek Padi ,  Kapil Bhattad ,  Alberto Rico Alvarino ,  Peng Liu

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

Abstract: Techniques are described for handling collisions between uplink transmissions and downlink transmissions over a wireless spectrum. Some of the techniques allow a UE to perform a collision management procedure after identifying a transmission collision (e.g., a collision between a downlink transmission with repetition and an uplink transmission, or a collision between a downlink transmission with repetition and a guard frame for an uplink transmission). The collision management procedure allows the UE to refrain from transmitting at least part of an uplink transmission, refrain from decoding at least part of a downlink transmission, or a combination thereof. Other techniques allow a base station to mitigate transmission collisions by scheduling downlink transmissions based on received, inferred, or determined parameters of uplink transmissions.

公开(公告)号：US11032028B2

公开(公告)日：2021-06-08

申请号：US16733066

申请日：2020-01-02

Applicant: QUALCOMM Incorporated

Inventor： Vijayvaradharaj Tirucherai Muralidharan ,  Gowrisankar Somichetty ,  Shashidhar Vummintala ,  Kapil Bhattad ,  Dominique Francois Bressanelli

IPC: H04L1/00 ,  H04L5/00 ,  H04W72/12 ,  H04L1/18 ,  H03M13/29 ,  H03M13/00 ,  H03M13/11 ,  H03M13/15 ,  H03M13/23 ,  H03M13/13

Abstract: Aspects of the disclosure relate to techniques for mitigating the decoding errors observed at the receiver as a result of puncturing symbols between consecutive subframes having the same transmission direction. To reduce the decoding errors, a plurality of transmission options, each including a number of resource blocks and a modulation and coding scheme (MCS), may be identified. In addition, each transmission option may be associated with one or more puncturing patterns that hinder decoding of a codeword at the receiver. The base station or user equipment (UE) may then select or modify at least one aspect of a scheduling decision involving the communication of the codeword in a given subframe of at least two consecutive subframes to minimize decoding errors. For example, a selected puncturing pattern or a transport block size associated with a selected transmission option may be modified.

公开(公告)号：US20200077442A1

公开(公告)日：2020-03-05

申请号：US16489096

申请日：2017-11-21

Applicant: QUALCOMM Incorporated

Inventor： Vijayvaradharaj Tirucherai Muralidharan ,  Gowrisankar Somichetty ,  Shashidhar Vummintala ,  Vivek Padi ,  Kapil Bhattad ,  Alberto Rico Alvarino ,  Peng Liu

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

Abstract: Techniques are described for handling collisions between uplink transmissions and downlink transmissions over a wireless spectrum. Some of the techniques allow a UE to perform a collision management procedure after identifying a transmission collision (e.g., a collision between a downlink transmission with repetition and an uplink transmission, or a collision between a downlink transmission with repetition and a guard frame for an uplink transmission). The collision management procedure allows the UE to refrain from transmitting at least part of an uplink transmission, refrain from decoding at least part of a downlink transmission, or a combination thereof. Other techniques allow a base station to mitigate transmission collisions by scheduling downlink transmissions based on received, inferred, or determined parameters of uplink transmissions.