Mobility for radio devices using beamforming and selection

US10804989B2 · kind B2 · utility

Assignee

• Convida Wireless, LLC · US

Inventors

• Wei Chen · San Diego, US
• Pascal M. Adjakple · Great Neck, US
• Joseph M. Murray · Trimble, US
• Qing Li · Princeton Junction, US
• Qian ZHANG · Jalan Pedongkelan, US
• Lakshmi R. Iyer · King of Prussia, US
• Tianyi Xu · San Diego, US
• Guodong Zhang · Syosset, US
• Allan Y. Tsai · Boonton, US

Key dates

• Filing date: Jul 20, 2017
• Grant date: Oct 13, 2020
• Expiry date: Jul 20, 2037

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W72/046
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Multiple mobility sets are maintained for nodes of radio networks. The sets comprise information such as: transmit and receive point identities; cell identities; beam identities; frequency channels; channel bandwidth; and black lists. The sets may be defined at different levels, such as network and physical (PHY) level. A network mobility set, e.g., a new-radio (NR) mobility set may, be determined by the gNB, the cell, the UE, or another device. Multiple radio access network nodes and UEs may exchange mobility set information to achieve a distributed mobility solution. A UE may monitor its orientation relative to a TRP, e.g., via use of an onboard MEMS gyroscope, and alter its beamforming parameters in response to changes in orientation and/or changes in TRP connection strength. Cell selection and reselection for beam based networks may use Single Frequency Network (SFN) broadcast of initial access signals without beam sweeping.