Controlling operating states of a mobile station in a packet radio system
US6243579A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1998 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Oct 30, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a packet radio network, a mobile station (MS) has an active state and a standby state. In the active state, the mobile station performs data transmission and updates its location more often than in the standby state. The mobile station changes from the active state to the standby state if there is no data transmission during a predetermined period. The packet radio network (SGSN) may also direct, if required, the mobile station (MS) from the active state to the standby state. The mobile station (MS) transmits to the packet radio network a short pseudo data packet either before the timer expires or in response to a command transmitted by the packet network to change the state (GO STANDBY) when the mobile station wants to stay in the active state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.