Network elements, wireless communication system and methods therefor
US9949076B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 16, 2015 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Apr 16, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W68/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
“Spoof” paging messages including the TMSI of a user equipment (129) known to be a vicinity are transmitted with a relatively high periodicity in an indoor cluster of presence nodes (113-121) and the node which receives the paging response from the user equipment is recorded, thus giving an indication of presence (and location) with a fine granularity. An additional presence node (125) having a different LAC from the macrolayer (123) is located at the entrance to the indoor cluster so that the TMSI and IMSI of the user equipment can be obtained. The invention can advantageously be employed in a retail store where a fine granularity in tracking subscriber movements around the store is desired. To conserve the user equipment's battery life, spoof paging messages are not sent to those user equipments which enter the vicinity on a regular basis, such as employees of the retail store.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.