公开(公告)号：US20210345275A1

公开(公告)日：2021-11-04

申请号：US17244708

申请日：2021-04-29

Applicant: QUALCOMM Incorporated

Inventor： Ting KONG ,  Yongle WU ,  Yong LI ,  Jun ZHU ,  Raghu Narayan CHALLA ,  Linzhe LI ,  Aparna NARAYANAN ,  Uzma Khan QAZI

IPC: H04W56/00

Abstract: A UE is configured to determine a set of parameters associated with receiving the SSBs, the set of parameters including a first parameter bitmap associated with a serving cell, a second parameter bitmap associated with the neighbor cell, and the SMTC. The UE is configured to determine a search window for searching the received SSBs based on the SMTC and at least one of the first parameter bitmap or the second parameter bitmap. The UE may measure the SSBs searched during the determined search window and send measurement results associated with at least a subset of the measured SSBs to the base station. The UE may also prune measurements to generate the measurement results by removing measurements associated with SSBs received in slots that are not indicated to expect SSBs, based on the first parameter bitmap, the second first parameter bitmap, or the SMTC.

公开(公告)号：US20210345260A1

公开(公告)日：2021-11-04

申请号：US17238098

申请日：2021-04-22

Applicant: QUALCOMM Incorporated

Inventor： Jun ZHU ,  Yongle WU ,  Jafar MOHSENI ,  Raghu Narayan CHALLA

IPC: H04W56/00 ,  H04W24/10 ,  H04W76/28 ,  H04W52/52

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for applying a zero element beam to conserve power in search and measurement operations of a UE. The UE may determine to measure a set of SSBs, where each SSB of the set of SSBs is transmitted on four symbols, and further determine a subset of the SSBs for which less than the four symbols associated with the SSBs are to be used for measurement of the SSBs. The UE may measure each SSB of the subset of the SSBs through less than the four symbols associated with the SSB.

公开(公告)号：US20210218461A1

公开(公告)日：2021-07-15

申请号：US17141516

申请日：2021-01-05

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan RAGHAVAN ,  Raghu Narayan CHALLA ,  Ruhua HE ,  Mihir Vijay LAGHATE ,  Juergen CEZANNE ,  Junyi LI

IPC: H04B7/08 ,  H04B7/06 ,  H04W8/24 ,  H04B17/318 ,  H04L25/02

Abstract: Aspects of the disclosure relate to devices, systems and methods for multi-beam formation. A user equipment (UE) may determine a sampling interval for references signals to be transmitted by a base station for an upcoming control or data communication. For example, the UE may determine a maximum sampling interval tolerable for channel estimation and select the sampling interval based on the maximum. In some examples, the UE determines the sampling interval based on characteristics of its motion. The UE transmits an indication of the sampling interval to the base station. Based on the indication, the base station selects an interval for the reference signals and transmits the reference signals to the UE to enable it to perform the channel estimation for the multi-beam. The base station may determine to select the interval for the reference signals such that it is less than or equal to the sampling interval indicated by the UE.

公开(公告)号：US20200383067A1

公开(公告)日：2020-12-03

申请号：US16883950

申请日：2020-05-26

Applicant: QUALCOMM Incorporated

Inventor： Tienyow LIU ,  Mingming CAI ,  Raghu Narayan CHALLA ,  Junsheng HAN ,  Farhad MESHKATI

IPC: H04W52/36 ,  H04L1/00 ,  H04W52/24 ,  H04B17/336 ,  H04W72/04

Abstract: Wireless communication devices are adapted to utilize maximum permissible exposure requirements in determining uplink traffic grant allocations within wireless communication systems. According to one example, a wireless communication device can determine one or more candidate uplink duty cycles for a subsequent uplink transmission interval based at least in part on an MPE requirement, determine a maximum number of resource blocks per symbol and a maximum MSC index associated with each of the one or more candidate uplink duty cycles from a predefined MCS index table, and select a duty cycle, number of resource blocks per symbol, and MCS that facilitates a largest number of un-coded bits for the subsequent uplink transmission interval. Other aspects, embodiments, and features are also included.

公开(公告)号：US20200374882A1

公开(公告)日：2020-11-26

申请号：US15930196

申请日：2020-05-12

Applicant: QUALCOMM Incorporated

Inventor： Mingming CAI ,  Junsheng HAN ,  Raghu Narayan CHALLA ,  Tienyow LIU ,  Jing LIN ,  Jagadish NADAKUDUTI ,  Lin LU ,  Farhad MESHKATI

IPC: H04W72/04 ,  H04W72/10 ,  H04W52/36

Abstract: Methods and systems for determining transmission power levels according to signal types and RF exposure limits. An example method generally includes determining a first transmission power for transmitting a first type of uplink (UL) signal, determining a second transmission power for transmitting a second type of UL signal based on the first transmission power, and transmitting at least one of the first UL signal according to the first transmission power or the second UL signal according to the second transmission power.

公开(公告)号：US20200374818A1

公开(公告)日：2020-11-26

申请号：US16860271

申请日：2020-04-28

Applicant: QUALCOMM Incorporated

Inventor： Mingming CAI ,  Tienyow LIU ,  Raghu Narayan CHALLA ,  Jing LIN ,  Junsheng HAN

IPC: H04W52/42 ,  H04W52/14 ,  H04W52/36 ,  H04B7/06 ,  H04W52/22

Abstract: Certain aspects of the present disclosure relate to beam selection. An example method generally includes selecting, from a plurality of beams, a beam for uplink transmission during a particular time interval, the selecting being based on a transmission power and a radio frequency (RF) exposure for each of the plurality of beams and transmitting at least one uplink signal using the selected beam during the particular time interval.

公开(公告)号：US20200329485A1

公开(公告)日：2020-10-15

申请号：US16843654

申请日：2020-04-08

Applicant: QUALCOMM Incorporated

Inventor： Shiau-He TSAI ,  Raghu Narayan CHALLA

IPC: H04W72/12 ,  H04W72/04 ,  H04L25/02 ,  H04L5/00 ,  H04B7/0413 ,  H04L1/00

Abstract: Certain aspects of the present disclosure provide a method for wireless communication by a base station (BS). The method generally includes receiving an indication of current remaining available transmit power from a user equipment (UE). The method further includes communicating information indicating a data rate parameter and a communication configuration to the UE. The data rate parameter is for use by the UE on an uplink with the BS. The communication configuration affects uplink transmission duty cycle on the uplink based on whether the current remaining available transmit power and a current channel state between the BS and the UE satisfy a condition. The method further includes receiving signals based on the data rate parameter and the communication configuration from the UE on the uplink.

公开(公告)号：US20200244490A1

公开(公告)日：2020-07-30

申请号：US16848747

申请日：2020-04-14

Applicant: QUALCOMM Incorporated

Inventor： Juergen CEZANNE ,  Ruhua HE ,  Sundar SUBRAMANIAN ,  Tao LUO ,  Muhammad Nazmul ISLAM ,  Junyi LI ,  Raghu Narayan CHALLA

IPC: H04L25/02 ,  H04B7/06 ,  H04B17/309 ,  H04B7/0456 ,  H04B17/382 ,  H04L1/00 ,  H04L5/00 ,  H04B17/27 ,  H04B7/08 ,  H04B7/0413

Abstract: Aspects of the disclosure relate to a method of operating a scheduled entity for wireless communication with a network. In some aspects, the scheduled entity transmits a message that requests a scheduling entity to transmit at least one reference signal. The scheduled entity obtains channel state information based on the at least one reference signal. The scheduled entity transmits a report that includes the channel state information. In other aspects, the scheduled entity transmits a message that requests a scheduling entity to schedule a reference signal transmission for the scheduled entity. The scheduled entity obtains an assignment of resources for transmission of the reference signal in response to the message. The scheduled entity transmits the reference signal based on the assignment of resources. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20180376351A1

公开(公告)日：2018-12-27

申请号：US16013807

申请日：2018-06-20

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth NAGARAJA ,  Raghu Narayan CHALLA ,  Ruhua HE ,  Arvind Vardarajan SANTHANAM ,  Yong LI ,  Muhammad Nazmul ISLAM ,  Bilal SADIQ

IPC: H04W24/02 ,  H04B7/0408 ,  H04B7/08 ,  H04W36/30

Abstract: Aspects of the present disclosure relate to receiver beamforming for serving and neighbor cell measurements. An exemplary method generally includes communicating with one or more base stations using a first beam type, initiating a transition to communicating with at least one of the one or more base stations using a second beam type in response to an indication of a trigger event, and communicating with the at least one of the one or more base stations using the second beam type.

公开(公告)号：US20180146419A1

公开(公告)日：2018-05-24

申请号：US15684861

申请日：2017-08-23

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan RAGHAVAN ,  Jianghong LUO ,  Raghu Narayan CHALLA ,  Qijia LIU ,  Junyi LI ,  Alexei Yurievitch GOROKHOV ,  Assaf TOUBOUL

IPC: H04W48/16 ,  H04W16/28 ,  H04B7/06 ,  H04B7/0456

Abstract: A method, an apparatus, and a computer-readable medium may be described in the present disclosure. The apparatus may be a user equipment. The apparatus may determine whether a number of unsuccessful repetitions associated with performance of a first type of scanning exceeds a repetition threshold. The apparatus may perform a second type of beam scanning based on the determination that the number of unsuccessful repetitions exceeded the repetition threshold.