Method and system for base station change of packet switched communications in a mobile communications system
US9998958B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2013 |
| Grant date | Jun 12, 2018 |
| Priority date | — |
| Expiry date | Jan 20, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W36/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A mobile station (MS) and method for base station handover from a source cell of a source base station to a target cell of a target base station in a packet-switched cellular radio network. While the MS is still in the source cell, the MS receives from the network, a handover command message and information regarding a next expected uplink packet for a packet flow subject to lossless packet-switched handover. Upon arrival of the MS in the target cell, the MS transmits an uplink sequence number status message to the target base station providing a downlink sequence number status for the packet flow, and starts uplink data transmission to the target base station beginning with the next expected uplink packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.