公开(公告)号：US11041959B2

公开(公告)日：2021-06-22

申请号：US16069829

申请日：2016-06-30

Applicant: QUALCOMM Incorporated

Inventor： Kundan Kumar Lucky ,  Gene Wesley Marsh ,  Srikant Jayaraman ,  William Ames ,  Dan Vassilovski ,  Fatih Ulupinar ,  Rohit Kapoor

IPC: G01S19/05 ,  G01S19/27 ,  G01S19/08 ,  G01S19/28

Abstract: Various aspects of the disclosure relate to managing ephemeris information. Provisions are made for providing ephemeris information to a user terminal (UT). Messages are defined for sending ephemeris information and for requesting ephemeris information. Ephemeris information for a subset of the satellites in a constellation may be sent to a UT to reduce signaling load. A UT may manage a database of ephemeris information to ensure freshness of the ephemeris information.

公开(公告)号：US20160043796A1

公开(公告)日：2016-02-11

申请号：US14918348

申请日：2015-10-20

Applicant: QUALCOMM Incorporated

Inventor： Ahmad Jalali ,  Leonard Schiff ,  William Ames

IPC: H04B7/185 ,  H04W16/14 ,  H04W36/30

CPC classification number: H04B7/18508 ,  H04B7/18502 ,  H04W16/14 ,  H04W36/20 ,  H04W36/30

Abstract: An air to ground communication system provides internet access to aircraft from ground based stations. The air to ground system shares spectrum with uplink portions of a satellite communication spectrum. Interference mitigation techniques are employed to avoid interference between the ground based communications and satellite communications. Fade mitigation techniques are employed to provide communication to aircraft at low angles of elevation in the presence of rain.

Abstract translation: 空对地通信系统提供从地面站到飞机的互联网接入。 空对地系统与卫星通信频谱的上行链路部分共享频谱。 采用干扰减轻技术来避免基于地面的通信和卫星通信之间的干扰。 采用褪色减轻技术来在雨下的情况下以低仰角向飞机提供通信。