公开(公告)号：US20210250776A1

公开(公告)日：2021-08-12

申请号：US17172000

申请日：2021-02-09

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Vinay CHANDE ,  Arumugam CHENDAMARAI KANNAN ,  Jing SUN ,  Xiaoxia ZHANG ,  Tao LUO

IPC: H04W16/14 ,  H04W72/04 ,  H04L27/00

Abstract: A wireless device uses a frame-based channel access mode to access a wireless spectrum for wireless communication. The wireless device may use transmitter-side only channel sensing to determine whether or not the spectrum is idle. The frame-based channel access mode may use a fixed frame period that includes an initial sensing period for beam-based sensing and an idle period at the end of the frame to facilitate spectrum sharing.

公开(公告)号：US20210243745A1

公开(公告)日：2021-08-05

申请号：US17159427

申请日：2021-01-27

Applicant: QUALCOMM Incorporated

Inventor： Zhifei FAN ,  Jing SUN ,  Xiaoxia ZHANG ,  Tao LUO ,  Srinivas YERRAMALLI ,  Arumugam CHENDAMARAI KANNAN ,  Wooseok NAM ,  Sungwoo PARK ,  Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL ,  Akula Aneesh REDDY

IPC: H04W72/04

Abstract: In an aspect, a PDCCH and a PDSCH are transmitted by a BS to a UE, whereby the PDCCH includes a first DCI part and the PDSCH includes a second DCI part (e.g., a 2-part DCI). In an example a first grant associated with the second DCI part is offset relative to a slot position of the second DCI part, whereas a second grant associated with the second DCI part is offset relative to the slot position to which the first grant is offset. In another aspect, two or more grants are grouped together, with the respective group being mapped to a PUCCH.

公开(公告)号：US20210243735A1

公开(公告)日：2021-08-05

申请号：US17159408

申请日：2021-01-27

Applicant: QUALCOMM Incorporated

Inventor： Zhifei FAN ,  Jing SUN ,  Xiaoxia ZHANG ,  Tao LUO ,  Srinivas YERRAMALLI ,  Arumugam CHENDAMARAI KANNAN ,  Wooseok NAM ,  Sungwoo PARK ,  Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL ,  Akula Aneesh REDDY

IPC: H04W72/04 ,  H04L5/00

Abstract: In an aspect, a PDCCH and a PDSCH are transmitted by a BS to a UE, whereby the PDCCH includes a first DCI part and the PDSCH includes a second DCI part (e.g., a 2-part DCI). In an example, the BS and UE each determine at least one timing value associated with an effective receive time for the PDCCH based upon a reference symbol of the PDSCH.

公开(公告)号：US20210243631A1

公开(公告)日：2021-08-05

申请号：US17155888

申请日：2021-01-22

Applicant: QUALCOMM Incorporated

Inventor： Hamed PEZESHKI ,  Tao LUO ,  Sony AKKARAKARAN ,  Arumugam CHENDAMARAI KANNAN ,  Taesang YOO ,  Ajay GUPTA ,  Mahmoud TAHERZADEH BOROUJENI ,  Jingchao BAO

IPC: H04W24/10 ,  H04W76/27 ,  H04B7/06 ,  H04B7/08

Abstract: A method of wireless communication by a user equipment (UE) may include receiving a message requesting estimated channel characteristics of a secondary band based on measuring characteristics of a channel in the primary band. The method also includes measuring characteristics of the channel in the primary band. The method estimates channel characteristics of the secondary band based on the primary band characteristics measurements. The estimating may occur without measuring signals in the secondary band. Further, the method may report the estimated channel characteristics of the secondary band and receive an indication of a secondary cell group, based on the estimated channel characteristics of the secondary band.

公开(公告)号：US20210243073A1

公开(公告)日：2021-08-05

申请号：US17158656

申请日：2021-01-26

Applicant: QUALCOMM Incorporated

Inventor： Hamed PEZESHKI ,  Arumugam CHENDAMARAI KANNAN ,  Tao LUO

IPC: H04L12/24 ,  H04L12/26 ,  H04L5/00 ,  H04B17/318 ,  G06N20/00

Abstract: Certain aspects of the present disclosure provide techniques for beam failure detection in a second band based on measurements in a first band. A method that may be performed by a user equipment (UE) includes receiving one or more reference signals (RSs) on a first radio frequency band and initiating a beam failure recovery on a second radio frequency band based, at least in part, on the one or more RSs on the first radio frequency band. The UE may measure the one or more RSs on the first radio frequency band and perform beam failure detection (BFD) for the second radio frequency band based, at least in part, on one or more measurements of the one or more RSs on the first radio frequency band.

公开(公告)号：US20210185654A1

公开(公告)日：2021-06-17

申请号：US17118123

申请日：2020-12-10

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud TAHERZADEH BOROUJENI ,  Tao LUO ,  Arumugam CHENDAMARAI KANNAN

IPC: H04W72/04 ,  H04W72/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may transmit, to a user equipment, an indication of a temporary resource change, wherein the temporary resource change is associated with at least one of a resource configuration, a repetition configuration, or a combination thereof. Numerous other aspects are provided.

公开(公告)号：US20210184798A1

公开(公告)日：2021-06-17

申请号：US17115550

申请日：2020-12-08

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo PARK ,  Wooseok NAM ,  Xiaoxia ZHANG ,  Tao LUO ,  Srinivas YERRAMALLI ,  Arumugam CHENDAMARAI KANNAN ,  Zhifei FAN ,  Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL ,  Akula REDDY ,  Jing SUN

IPC: H04L1/16 ,  H04W72/04 ,  H04L1/00 ,  H04L5/00

Abstract: Certain aspects of the present disclosure provide techniques for communication of downlink control information (DCI) piggybacked on a physical downlink shared channel (PDSCH) configured using semi persistent scheduling (SPS). A method that may be performed by a user equipment (UE) includes receiving a message having a configuration for semi persistent scheduling (SPS) of data channels, receiving an indication associated with at least one first downlink control information (DCI) for transmission in at least one of the data channels, and monitoring for the data channels in accordance with the configuration for SPS.

公开(公告)号：US20210153053A1

公开(公告)日：2021-05-20

申请号：US17077524

申请日：2020-10-22

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud TAHERZADEH BOROUJENI ,  Arumugam CHENDAMARAI KANNAN ,  Tao LUO

IPC: H04W24/10 ,  H04B17/336 ,  H04B7/06 ,  H04B17/318 ,  H04W76/27 ,  H04W80/02 ,  H04W72/04 ,  H04L1/00

Abstract: An interference metric measured at a specific antenna may differ from interference metrics at different antennas. As a result, any actions based on the interference metric may unduly be influenced by such difference. In some implementations, an apparatus or device reports an overall interference metric that accounts for spatial variations in interference metrics at different antennas. An example method includes measuring, by a user equipment, an interference metric at each antenna of two or more antennas for wireless signals transmitted by a base station, generating an overall interference metric based on the interference metrics for the two or more antennas, and transmitting, by the user equipment, the overall interference metric to the base station.

公开(公告)号：US20210153052A1

公开(公告)日：2021-05-20

申请号：US17077390

申请日：2020-10-22

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud TAHERZADEH BOROUJENI ,  Arumugam CHENDAMARAI KANNAN ,  Tao LUO

IPC: H04W24/10 ,  H04B17/336 ,  H04B7/06 ,  H04B17/318 ,  H04W76/27 ,  H04W80/02 ,  H04W72/04

Abstract: An interference metric at a specific time instance may differ from interference metrics at different time instances. As a result, any actions based on the interference metric may unduly be influenced by such difference. In some implementations, an apparatus or device reports an overall interference metric that accounts for temporal variations in interference metrics at different time instances. An example method includes measuring, by a user equipment, an interference metric at two or more time instances for wireless signals transmitted by a base station, generating an overall interference metric based on the interference metrics at the two or more time instances, and transmitting, by the user equipment, the overall interference metric to the base station.

公开(公告)号：US20210105120A1

公开(公告)日：2021-04-08

申请号：US17062265

申请日：2020-10-02

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Xiaoxia ZHANG ,  Peter GAAL ,  Tao LUO ,  Jing SUN ,  Tae Min KIM ,  Arumugam CHENDAMARAI KANNAN

IPC: H04L5/00 ,  H04W72/04

Abstract: A phase tracking reference signal (PT-RS) may be transmitted to enable a receiver to correct phase noise in wireless communication. A UE scheduled for one PDSCH with DMRS ports in two or more DMRS CDM groups that are associated with two TCI states may be configured for PT-RS using two PT-RS ports. Therefore, rather than limiting PT-RS to a single port, the PT-RS may be transmitted to the UE using two PT-RS ports. The apparatus transmits a capability indication for more than one PT-RS port for receiving a downlink shared channel based on a first TCI and a second TCI. The apparatus receives a configuration for a maximum number of downlink PT-RS ports from a base station.