Method and apparatus for reference time acquisition for positioning reference signals in a wireless communication network

US9213080B2 · kind B2 · utility

Assignee

• Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

• Iana Siomina · Täby, SE
• Muhammad Kazmi · Sundbyberg, SE
• Tao Cui · Princeton Junction, US
• Elena Voltolina · Sollentuna, SE

Key dates

• Filing date: Dec 7, 2010
• Grant date: Dec 15, 2015
• Expiry date: Aug 6, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S5/02
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A base station determines a muting configuration for reference signal (RS) transmission as a pattern defined by the combination of a muting sequence and a reference point. Muting occasions for a given wireless communication network cell may be differentiated from another cell by use of a different muting sequence, a different reference point, or both. Wireless communication apparatuses such as User Equipments (UEs) determine when the reference signals are muted in the cell based on the periodic muting sequence and the reference point received in assistance data transmitted by the base station. The network may alternatively utilize a common muting sequence with different reference points, a common reference point with different muting sequences, or different sequences and different reference points across multiple cells.