System and methods for support of secure base station almanac data in a wireless network

US11558846B2 · kind B2 · utility

Assignee

• QUALCOMM Incorporated · US

Inventors

• Sony Akkarakaran · Poway, US
• Sven Fischer · Leipzig, DE
• Stephen William Edge · Escondido, US
• Joseph Binamira Soriaga · San Diego, US
• Tao Luo · San Diego, US
• Peter Gaal · San Diego, US
• Alexandros MANOLAKOS · San Diego, US
• Guttorm Ringstad OPSHAUG · Redwood City, US
• Zhimin Du · Beijing, CN
• Yiqing CAO · Beijing, CN
• Tingfang Ji · San Diego, US
• Lorenzo Casaccia · Roma, IT

Key dates

• Filing date: Mar 19, 2020
• Grant date: Jan 17, 2023
• Expiry date: Mar 19, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W12/037
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A reference signal periodically transmitted by a base station in a wireless network can have certain proprietary properties to help prevent detection and utilization of the signal for unauthorized positioning of mobile devices. More specifically, a network node can obscure and introduce time-variation in mapping between positioning signals and a corresponding physical base stations. The network node may also introduce time variations in fields of a base station almanac (BSA) provided to subscribing user equipments (UEs). The information transmitted to the subscribing UEs may be encrypted.