公开(公告)号：US20220003859A1

公开(公告)日：2022-01-06

申请号：US17364307

申请日：2021-06-30

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo PARK ,  Wooseok NAM ,  Tao LUO ,  Junyi LI ,  Juan MONTOJO ,  Jing SUN ,  Xiaoxia ZHANG ,  Peter GAAL ,  Taesang YOO ,  Simone MERLIN ,  Srinivas YERRAMALLI ,  John Edward SMEE

IPC: G01S13/56 ,  G01S7/03 ,  G01S7/35

Abstract: Monostatic radar with progressive length transmission may be used with half-duplex systems or with full-duplex systems to reduce self-interference. The system transmits a first signal for a first duration and receives a first reflection of the first signal from a first object during a second duration. The system transmits a second signal for a third duration longer than the first duration and receives a second reflection of the second signal from a second object during a fourth duration. The system calculates a position of the first object and the second object based on the first reflection and the second reflection. The first signal, first duration, and second duration are configured to detect reflections from objects within a first distance of the system. The second signal, third duration, and fourth duration are configured to detect reflections from objects between the first distance and a second distance from the system.

公开(公告)号：US20210409152A1

公开(公告)日：2021-12-30

申请号：US17350931

申请日：2021-06-17

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Lorenzo FERRARI ,  Srinivas YERRAMALLI ,  Yih-Hao LIN ,  Jing SUN ,  Alexandros MANOLAKOS ,  Rajat PRAKASH ,  Marwen ZORGUI

IPC: H04L1/00 ,  H04L25/02 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04

Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives a sounding reference signal (SRS) resource configuration, the SRS resource configuration indicating at least a comb pattern for at least one SRS resource allocated to the UE and a puncturing unit for the comb pattern, wherein the comb pattern is divided into one or more puncturing units, wherein each puncturing unit comprises one or more time units of the comb pattern, and wherein each of the one or more time units comprises two or more symbols, and refrains from transmitting all SRS transmissions of the at least one SRS resource within a first puncturing unit of the one or more puncturing units based on a determination that one or more SRS transmissions of the at least one SRS resource within the first puncturing unit are to be dropped.

公开(公告)号：US20210400734A1

公开(公告)日：2021-12-23

申请号：US17335982

申请日：2021-06-01

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Srinivas YERRAMALLI ,  Lorenzo FERRARI ,  Yih-Hao LIN ,  Jing SUN ,  Rajat PRAKASH ,  Alexandros MANOLAKOS

IPC: H04W74/08 ,  H04W52/02 ,  H04L5/00 ,  H04B17/10 ,  H04W72/04

Abstract: A user equipment (UE) transmits reference signals for positioning while in Idle or Inactive state. While in a connected state, the UE is pre-configured with Sounding Reference Signal (SRS) resource configuration including at least one of timing adjustment (TA) and an uplink (UL) transmission spatial filter. The UE transmits positioning SRS while in Idle or Inactive mode based on the pre-configuration. The TA and UL transmission spatial filter may be updated by a serving base station using control signals or a paging message received by the UE while in in Idle or Inactive mode. The validity of the TA and UL transmission spatial filter may be monitored using expiration timers or a relative position change threshold. The reference signals transmitted may be based on a UE may Physical Random Access Channel (PRACH), which is insensitive to TA changes. A long sequence PRACH may be used for improved positioning accuracy.

公开(公告)号：US20210400626A1

公开(公告)日：2021-12-23

申请号：US17349245

申请日：2021-06-16

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Lorenzo FERRARI ,  Taesang YOO ,  Alexandros MANOLAKOS ,  Yih-Hao LIN ,  Xiaoxia ZHANG ,  Rajat PRAKASH ,  Marwen ZORGUI ,  Danlu ZHANG

IPC: H04W64/00 ,  G01S5/06 ,  G01S5/10 ,  G01S5/02 ,  H04L5/00

Abstract: Techniques are provided for passive positioning of user equipment (UE). An example method for passive positioning of a user equipment includes receiving a first positioning reference signal from a first station at a first time, receiving a second positioning reference signal from a second station at a second time, receiving a turnaround time value associated with the first positioning reference signal and the second positioning reference signal, and a distance value based on a location of the first station and a location of the second station, and determining a time difference of arrival based at least in part on the turnaround time value, the distance value, the first time, and the second time.

公开(公告)号：US20210359790A1

公开(公告)日：2021-11-18

申请号：US17185543

申请日：2021-02-25

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Jing SUN ,  Xiaoxia ZHANG ,  Tao LUO ,  Qiang WU ,  Zhifei FAN ,  Arumugam CHENDAMARAI KANNAN ,  Sungwoo PARK ,  Wooseok NAM

IPC: H04L1/16 ,  H04W72/04 ,  H04L1/18

Abstract: Certain aspects may be implemented in a method for wireless communication. The method generally includes determining a counter downlink assignment index (cDAI) to be included in each of a plurality of downlink control information (DCI), each of a first subset of the plurality of DCI being on a control channel, and each of a second subset of the plurality of DCI being on a data channel, each of the first subset of the plurality of DCI scheduling one of the data channels, and wherein each of the control channels and the data channels is on a cell of a plurality of cells, the determination of the cDAIs being based on order of the cell, with respect to the plurality of cells, on which each of the cDAIs is to be transmitted; generating and outputting for transmission the control channels and data channels in accordance with the determination.

公开(公告)号：US20210321221A1

公开(公告)日：2021-10-14

申请号：US17226201

申请日：2021-04-09

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Taesang YOO ,  Lorenzo FERRARI ,  Xiaoxia ZHANG

IPC: H04W4/029 ,  H04W4/02 ,  H04W64/00 ,  H04L25/02 ,  G06N3/04

Abstract: Techniques are provide for neural network based positioning of a mobile device. An example method for determining a line of sight delay, an angle of arrival, or an angle of departure value, according to the disclosure includes receiving reference signal information, determining a channel frequency response or a channel impulse response based on the reference signal information, processing the channel frequency response or the channel impulse response with a neural network, and determining the line of sight delay, the angle of arrival, or the angle of departure value based on an output of the neural network.

公开(公告)号：US20210250994A1

公开(公告)日：2021-08-12

申请号：US17125106

申请日：2020-12-17

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W72/08 ,  H04L5/00 ,  H04W24/08 ,  H04W24/10

Abstract: A first apparatus may be implemented as a user equipment (UE) or a component thereof. The first apparatus may be configured to receive a pre-grant message from a base station on a wireless channel. The first apparatus may be further configured to determine an interference level associated with the wireless channel. The first apparatus may then indicate the interference level to the base station in response to the pre-grant message. A second apparatus may be implemented as a base station or a component thereof. The second apparatus may be configured to transmit a pre-grant message to a UE on a wireless channel. The second apparatus may be further configured to detect for an acknowledgement (ACK) message responsive to the pre-grant message from the UE. The second apparatus may then determine an interference level associated with the wireless channel proximate to the UE based on detecting for the ACK message.

公开(公告)号：US20210243789A1

公开(公告)日：2021-08-05

申请号：US17159383

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: H04W72/12 ,  H04L1/00

Abstract: In an aspect, a PDCCH and a PDSCH are transmitted by a BS to a UE, whereby the PDDCH includes a first DCI part and the PDSCH includes a second DCI part. In an example, a TBS associated with the PDSCH may be determined (e.g., either by factoring or ignoring resource elements associated with the second DCI part). In another example, the PDSCH may be associated with a modulation scheme with a constellation having constellation points, whereby the second DCI part in the PDSCH is restricted to a subset of the constellation points. In another example, rate-matching may be performed for one or more resource elements of the second DCI part.

公开(公告)号：US20210143941A1

公开(公告)日：2021-05-13

申请号：US17035424

申请日：2020-09-28

Applicant: QUALCOMM Incorporated

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

IPC: H04L1/18 ,  H04B17/336

Abstract: The present disclosure discloses apparatuses, systems, and methods of wireless communication that use an adaptive hybrid automatic repeat request (HARQ) procedure and a multi-threaded HARQ procedure for improving HARQ buffer utilization and management. A user equipment (UE) can transmit a reset NACK to reduce the amount of HARQ buffers needed for concurrent HARQ processes. A base station can transmit different redundancy data in a HARQ retransmission depending on the types of NACK the UE transmitted. The base station can communicate with the UE using multiple light HARQ processes or threads that use less HARQ buffers than a typical HARQ procedure. Other aspects, features, and embodiments are also claimed and described.

公开(公告)号：US20210136734A1

公开(公告)日：2021-05-06

申请号：US16948899

申请日：2020-10-05

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station (B S), an indication of a plurality of sets of slot format indicator parameters. The UE may receive, from the B S, a communication that identifies a set of slot format indicator parameters from the plurality of sets of slot format indicator parameters. Numerous other aspects are provided.