公开(公告)号：US20180376393A1

公开(公告)日：2018-12-27

申请号：US16012639

申请日：2018-06-19

Applicant: QUALCOMM Incorporated

Inventor： Qiang Wu ,  Peter John Black ,  Ruoheng Liu

IPC: H04W36/08 ,  H04W36/00 ,  H04W36/16 ,  H04W36/36 ,  H04L5/26 ,  H04W72/04 ,  H03M13/15 ,  H04L1/00

Abstract: A method and apparatus for operating a satellite system including different satellites that may belong to different types of satellite constellations. In some implementations, the satellite system may include a LEO satellite constellation and one or more non-LEO satellite constellations that can be used to increase the forward link capacity of the LEO satellite constellation, for example, by allowing an LEO satellite to offload at least some of its forward link traffic to one of the non-LEO satellites. The user terminals can dynamically switch forward link communications between a LEO satellite and a non-LEO satellite while maintaining a return link connection with the LEO satellite.

公开(公告)号：US10097316B2

公开(公告)日：2018-10-09

申请号：US15165890

申请日：2016-05-26

Applicant: QUALCOMM Incorporated

Inventor： Jelena Damnjanovic ,  Gene Wesley Marsh ,  Mario Maro Scipione ,  Qiang Wu

IPC: H04W4/00 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04 ,  H04B7/185 ,  H04B7/204

Abstract: A method and apparatus for operating a controller for a satellite communications system during inter-beam handovers. In some aspects, the controller may perform an inter-beam handover by switching communications with a user terminal from a first beam to a second beam of a satellite. The controller receives a feedback message form the user terminal, via the first beam, after the inter-beam handover is completed, and may then selectively retransmit data to the user terminal via the second beam based at least in part on the feedback message.

公开(公告)号：US20170265177A1

公开(公告)日：2017-09-14

申请号：US15164765

申请日：2016-05-25

Applicant: QUALCOMM Incorporated

Inventor： Ruoheng Liu ,  Jun Ma ,  Qiang Wu

IPC: H04W72/04 ,  H04W72/14 ,  H04W28/04 ,  H04L1/18

CPC classification number: H04W72/0406 ,  H04B7/185 ,  H04L1/1854 ,  H04L1/1861 ,  H04L5/001 ,  H04L5/0055 ,  H04W72/14 ,  H04W74/085 ,  H04W84/06 ,  H04W88/16

Abstract: Various aspects of the disclosure relate to allocating control signaling resources for multiple carrier scenarios. In an example implementation, N-to-1 mapping is used between forward link control signaling resource allocation indices (e.g., control channel elements) and return link control signaling resources (e.g., for ACK/NACK signaling) indices in each return link component carrier. A collision between forward link control signaling assignments for different user terminals (UTs) may occur when UT-specific search spaces overlap each other. Such a collision may be avoided, for example, by scheduling different UTs on different return link component carriers, scheduling return link grants instead of forward link grants, or scheduling a different forward link control signaling candidate that is associated with a different forward link control signaling resource allocation index.

公开(公告)号：US20170223735A1

公开(公告)日：2017-08-03

申请号：US15243895

申请日：2016-08-22

Applicant: QUALCOMM Incorporated

Inventor： Jelena Damnjanovic ,  Qiang Wu ,  Fatih Ulupinar

IPC: H04W74/08 ,  H04W28/02 ,  H04W74/00 ,  H04W72/12 ,  H04B7/185 ,  H04W72/04

CPC classification number: H04W74/08 ,  H04B7/18517 ,  H04B7/18539 ,  H04W28/0278 ,  H04W72/1284 ,  H04W88/16

Abstract: Methods and apparatuses are disclosed for a user terminal (UT) to transmit data to a network controller via a satellite in a satellite system. The UT may begin transmitting, during a time period, a first portion of the data using contention-based resources of the satellite system prior to receiving a grant of scheduled return link resources of the satellite system. The UT may also transmit, on the contention-based resources, a buffer status report (BSR) during the time period. The UT may terminate data transmissions on the contention-based resources after an expiration of the time period or upon receiving the grant of scheduled return link resources. After receiving the grant, the UT may transmit a second portion of the data on the scheduled return link resources.

公开(公告)号：US20170222713A1

公开(公告)日：2017-08-03

申请号：US15251810

申请日：2016-08-30

Applicant: QUALCOMM Incorporated

Inventor： Jelena Damnjanovic ,  Fatih Ulupinar ,  Qiang Wu

IPC: H04B7/185 ,  H04L1/18 ,  H04W72/04 ,  H04W72/12

CPC classification number: H04B7/18582 ,  H04B7/18539 ,  H04L1/1812 ,  H04L1/1864 ,  H04L1/1887 ,  H04L1/1893 ,  H04L5/0055 ,  H04L5/0091 ,  H04W72/0446 ,  H04W72/1263

Abstract: A method and apparatus for operating a satellite access network (SAN) of a satellite communication system to schedule communications with a user terminal. In some aspects, the SAN may provision a communication frame, for the user terminal, into a number of forward-link (FL) subframes and a different number of reverse-link (RL) subframes. The SAN then transmits the FL subframes to the user terminal via a forward link of the satellite communication system, and subsequently receives the RL subframes from the user terminal via a reverse link of the satellite communication system.

公开(公告)号：US09198053B2

公开(公告)日：2015-11-24

申请号：US13852574

申请日：2013-03-28

Applicant: QUALCOMM Incorporated

Inventor： Stephen William Edge ,  Peter John Black ,  Qiang Wu ,  Wanlun Zhao ,  Yeliz Tokgoz ,  Roberto Padovani ,  Ayman Fawzy Naguib ,  Je Woo Kim ,  Pranav Dayal ,  Parag Arun Agashe

IPC: H04W24/00 ,  G01S5/02 ,  H04W64/00

CPC classification number: H04W24/00 ,  G01S5/0226 ,  G01S5/0236 ,  H04W64/00

Abstract: Briefly, in accordance with one embodiment, a method of transmitting signals is provided. Signal waveforms are transmitted from at least two respective sectors. The at least two respective sectors are from at least two different sets of a superset of sectors. The transmitted signal waveforms include signal waveforms at least nearly mutually orthogonal at least along a particular signal dimension. An advantage of such an embodiment, for example, is reduced signal interference.

Abstract translation: 简而言之，根据一个实施例，提供一种发送信号的方法。 信号波形从至少两个相应的扇区发送。 所述至少两个相应扇区是来自扇区的超集的至少两组不同的集合。 发送的信号波形包括至少沿着特定信号维度至少几乎相互正交的信号波形。 例如，这样的实施例的优点是减少了信号干扰。

公开(公告)号：US12216212B2

公开(公告)日：2025-02-04

申请号：US17757931

申请日：2020-01-14

Applicant: QUALCOMM Incorporated

Inventor： Jun Ma ,  Qiang Wu ,  Huilin Xu ,  Xiao Feng Wang ,  Iyab Issam Sakhnini ,  Dan Zhang ,  Yiqing Cao

IPC: G01S19/11 ,  H04L5/00 ,  H04W64/00 ,  H04W84/06

Abstract: Disclosed are techniques for positioning. A receiver measures a time of arrival (ToA) of a positioning reference signal (PRS) transmission of a first PRS sequence transmitted by a first transmitter, measures a ToA of a PRS transmission of a second PRS sequence transmitted by a second transmitter, and determines an observed time difference of arrival (OTDOA) as a difference between the ToA of the PRS transmission of the first PRS sequence and the ToA of the PRS transmission of the second PRS sequence, wherein the OTDOA is less than half a maximum differential delay expected between the PRS transmission of the first PRS sequence and the PRS transmission of the second PRS sequence, and wherein a repetition duration of the first PRS sequence and the second PRS sequence is greater than 10 milliseconds (ms) and at least twice the maximum differential delay.

公开(公告)号：US12207273B2

公开(公告)日：2025-01-21

申请号：US17668933

申请日：2022-02-10

Applicant: QUALCOMM Incorporated

Inventor： Lianghai Ji ,  Huilin Xu ,  Mohamad Sayed Hassan ,  Liangping Ma ,  Jun Ma ,  Qiang Wu ,  Mehmet Izzet Gurelli ,  Weimin Duan ,  Karthik Anantha Swamy

IPC: H04W72/23 ,  H04L1/08 ,  H04W72/0446

Abstract: Aspects described herein relate to receiving, from a network node, a first transmission for configuring a configured grant, wherein the configured grant allocates one or more resources associated with an uplink transmission process having a transmission process identifier, obtaining a first indication that the network node uses a fallback downlink control information (DCI) format, and modifying, based at least in part on obtaining the first indication and the transmission process identifier, the uplink transmission process. Other aspects relate to configuring a device for modifying the uplink transmission process, receiving uplink communications based on the modified uplink transmission process, and/or the like.

公开(公告)号：US12127174B2

公开(公告)日：2024-10-22

申请号：US17342456

申请日：2021-06-08

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam Sakhnini ,  Tao Luo ,  Olufunmilola Omolade Awoniyi-Oteri ,  Yan Zhou ,  Wanshi Chen ,  Juan Montojo ,  Peter Gaal ,  Qiang Wu ,  Mahmoud Taherzadeh Boroujeni ,  Junyi Li ,  Jelena Damnjanovic

IPC: H04W72/0453 ,  H04L5/00 ,  H04W72/51

CPC classification number: H04W72/0453 ,  H04L5/0048 ,  H04W72/51

Abstract: Apparatus, methods, and computer-readable media for facilitating per bandwidth part TCI state or spatial relation are disclosed herein. For example, aspects disclosed herein provide techniques for enabling a UE (e.g., a reduced capability UE) to associate at least one of a TCI state or a spatial relation with respective hopping regions. An example method for wireless communication at a UE includes determining, while communicating using a first frequency range comprising a first set of frequency hops, at least one of a TCI state or a spatial relation for communicating using a second frequency range comprising a second set of frequency hops. The example method also includes communicating, after switching communication from the first frequency range to the second frequency range, using the second frequency range based on the determined at least one of the TCI state or the spatial relation.

公开(公告)号：US12117537B2

公开(公告)日：2024-10-15

申请号：US17793524

申请日：2020-02-07

Applicant: QUALCOMM Incorporated

Inventor： Jun Ma ,  Xiao Feng Wang ,  Qiang Wu ,  Huilin Xu ,  Dan Zhang ,  Iyab Issam Sakhnini ,  Yiqing Cao

IPC: G01S19/25 ,  G01S5/10 ,  H04W64/00 ,  H04W84/06

CPC classification number: G01S19/256 ,  G01S5/10 ,  H04W64/00 ,  H04W84/06

Abstract: Satellites in a non-terrestrial network may provide positioning reference signals (PRS) to user equipment (UE), with which the UE may determine its position using propagation delay difference measurements, such as Time Difference of Arrival (TDOA) measurement. Due to the large distances between satellites and the UE, the propagation delay differences in the PRS received from satellites may exceed half a radio frame, resulting in a frame level timing ambiguity in the differential measurements. The satellites transmit secondary PRS, along with primary PRS, that include timing information to resolve frame level timing ambiguity of the primary PRS. The positioning occasions in the secondary PRS, for example, may be aligned with corresponding positioning occasions primary PRS within each radio frame, and are transmitted with a periodicity that is an integer multiple (greater than 1) of that of the primary PRS to resolve the frame level timing ambiguity of the primary PRS.