公开(公告)号：US11424887B2

公开(公告)日：2022-08-23

申请号：US16991513

申请日：2020-08-12

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Gabi Sarkis ,  Wei Yang ,  Muhammad Sayed Khairy Abdelghaffar ,  Gokul Sridharan ,  Joseph Binamira Soriaga ,  Krishna Kiran Mukkavilli

IPC: H04L5/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. According to one or more aspects, a device, such as a user equipment (UE), may receive, from one or more base stations during a first time unit, a control signal including an indication of a reference signal bundling configuration associated with one or more physical channel types which may be potentially scheduled during a set of time units after the first time unit. The UE may determine the set of time units based on the indication of the reference signal bundling configuration. Additionally or alternatively, the UE may receive scheduling configuration of one or more physical channels, and the one or more physical channels during one or more second time units of the set of time units. The UE may then bundle the one or more physical channels based on the reference signal bundling configuration.

公开(公告)号：US11419122B2

公开(公告)日：2022-08-16

申请号：US16936359

申请日：2020-07-22

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Alexandros Manolakos

IPC: H04W72/04 ,  H04L5/10 ,  H04L5/00 ,  H04W56/00

Abstract: Methods and apparatus are disclosed according to certain aspects of the present disclosure. The methods and apparatus effect determination that a transmission configuration indicator (TCI) state is to be changed for a wireless transmission channel, where the channel includes time domain bundling of demodulation reference signals (DMRSs) across two or more symbols. Responsive to the determination that the TCI state is to be changed, the time domain bundling of the DMRSs in the transmission channel is selectively stopped prior to the TCI state change.

公开(公告)号：US11381294B2

公开(公告)日：2022-07-05

申请号：US17037159

申请日：2020-09-29

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Huilin Xu ,  Wanshi Chen ,  Heechoon Lee ,  Peter Gaal

IPC: H04B7/06 ,  H04L5/00 ,  H04L1/00 ,  H04W76/27

Abstract: Certain aspects of the present disclosure provide techniques for rate matching PDSCH around NZP CSI RS transmissions in multi-TRP scenarios. In some cases, a network entity may signal a rate matching behavior to a user equipment (UE) for processing a physical downlink shared channel (PDSCH) configured with a first quasi co-location association and transmitted from a first transmission reception point (TRP) that potentially collides with one or more types of non-zero power (NZP) reference signals (RS) configured with a second quasi co-location association and transmitted from a second TRP using one or more resource sets.

公开(公告)号：US11368816B2

公开(公告)日：2022-06-21

申请号：US17221615

申请日：2021-04-02

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Stephen William Edge ,  Lorenzo Ferrari ,  Rajat Prakash ,  Xiaoxia Zhang ,  Alexandros Manolakos ,  Sven Fischer

IPC: H04W4/029 ,  G01S5/02 ,  H04L5/00

Abstract: A wireless network including user equipment (UE) and base stations is configured to perform position determination with low latency and synchronized to a common time within a wireless network. The UE and base stations are configured to perform positioning measurements at a specific time point or within a window around the time point in a measurement period. The time point may be relative to a timing event within the wireless network, such as the beginning or end of a positioning reference signal window or a specific message in a layer 1 or layer 2 transmission. A location server may be provided with the positioning measurements or a position estimate from the UE and provide the position estimate to an external client within the measurement period.

公开(公告)号：US11353543B2

公开(公告)日：2022-06-07

申请号：US17325071

申请日：2021-05-19

Applicant: QUALCOMM Incorporated

Inventor： Jingchao Bao ,  Sony Akkarakaran ,  Alexandros Manolakos ,  Tao Luo

IPC: G01S5/10 ,  H04L5/00 ,  H04B7/08 ,  H04B7/06 ,  H04L1/00

Abstract: A method comprises: selecting, from a first number of first receive (RX) beams having a first beam width, a first RX beam to form a first beam-pair with a first transmit (TX) beam from one or more base stations, the selection being based on a first measurement of a first reference signal received by the UE using the first beam-pair; selecting, from a second number of second RX beams having a second beam width, a second RX beam to form a second beam-pair with the first TX beam, the selection being based on a second measurement of a second reference signal received by the UE using the second beam-pair, the second number of second RX beams being smaller than the first number of first RX beams, the second beam width being narrower than the first beam width; and performing a location estimate operation using either the second beam-pair, or a third beam-pair derived from the second beam-pair.

公开(公告)号：US11343037B2

公开(公告)日：2022-05-24

申请号：US16275497

申请日：2019-02-14

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Makesh Pravin John Wilson ,  Tao Luo ,  Bilal Sadiq ,  Sony Akkarakaran

IPC: H04L5/00 ,  H04W76/27 ,  H04W72/04 ,  H04W88/08

Abstract: A base station may transmit a quasi-collocation (QCL) relationship indication to a user equipment (UE) that indicates different QCL groups (e.g., QCL relationships corresponding to different port groups). The QCL relationship indication may include a tuple of transmission configuration indication (TCI)-states, TCI-states configured with TCI-state-sets, or multiple TCI-states indicated via an extended media access control (MAC) control element (CE). The QCL relationship indication may indicate a QCL relationship between one or more port groups of a first reference signal set and a plurality of port groups associated with a target reference signal. For example, the QCL relationship indication may indicate two QCL groups, where each QCL group includes a QCL relationship between a reference signal resource and a port group associated with a target reference signal. Using QCL group information, the UE may perform channel estimation for demodulating target reference signals, using the QCL antenna port group.

公开(公告)号：US11317245B2

公开(公告)日：2022-04-26

申请号：US16813345

申请日：2020-03-09

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Sony Akkarakaran ,  Guttorm Ringstad Opshaug ,  Sven Fischer ,  Joseph Binamira Soriaga ,  Tao Luo ,  Juan Montojo ,  Peter Gaal

IPC: H04W24/00 ,  H04W4/029 ,  H04W24/08 ,  H04B17/345

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may report measurements of a signal transmitted by a base station via a waveform. Based on the waveform, the base station may determine a position of the UE. The UE may measure the signal in a frequency band, where additional signaling in an adjacent frequency band causes interference on the signal. The UE may determine characteristics for measuring the signal based on the interference and may generate samples of the signal based on the measurement characteristics. Additionally, the UE may identify one or more antennas for measuring the signal and generate the samples based on the identified antennas. The UE may transmit the waveform report to the base station based on the samples. In some cases, the waveform may be based on a fractional symbol reporting scheme or a time mask with an offset and sampling rate.

公开(公告)号：US11304169B2

公开(公告)日：2022-04-12

申请号：US16717794

申请日：2019-12-17

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Taesang Yoo ,  Joseph Binamira Soriaga ,  Tao Luo ,  Alexandros Manolakos

IPC: H04W56/00 ,  H04W88/08 ,  H04L5/00 ,  H04W8/24 ,  H04W24/10

Abstract: Disclosed are techniques for determining a position of a user equipment (UE). A differential round-trip-time (RTT) based positioning procedure is proposed to determine the UE position. In this technique, the UE position is determined based on the differences of the RTTs between the UE and a plurality of base stations. The differential RTT based positioning procedure has much looser inter-gNodeB timing synchronization requirements than the OTDOA technique and also has much looser group delay requirements than traditional RTT procedures.

公开(公告)号：US11297579B2

公开(公告)日：2022-04-05

申请号：US16747348

申请日：2020-01-20

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Wei Yang ,  Alexandros Manolakos

IPC: H04W56/00 ,  H04B1/12 ,  H04B1/10 ,  H04L5/00 ,  H04L27/26

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may filter a group of uplink reference signals so that filtering delays of the group of uplink reference signals are consistent based at least in part on a filtering constraint for the group of uplink reference signals; and transmit the group of uplink reference signals. Numerous other aspects are provided.

公开(公告)号：US11283571B2

公开(公告)日：2022-03-22

申请号：US16949544

申请日：2020-11-03

Applicant: QUALCOMM Incorporated

Inventor： Gokul Sridharan ,  Alexandros Manolakos ,  Yi Huang ,  Wanshi Chen ,  Wei Yang ,  Jay Kumar Sundararajan ,  Krishna Kiran Mukkavilli

IPC: H04L5/00 ,  H04B7/0456

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a sounding reference signal (SRS) on a plurality of antenna ports. The UE may transmit the SRS on one or more virtual antenna ports, the one or more virtual antenna ports being based at least in part on the plurality of antenna ports. Numerous other aspects are provided.