Parameter selection optimization for handover
AssigneeNokia Corporation
InventorsOtto-Alekasanteri Lehtinen, Jussi Pekka Äijänen
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Abstract
Methods and devices for selecting a handover parameter in a cellular network, wherein a delay of a handover procedure is typically measured and the handover parameter is generally set based on the result of the measuring step. Thereby, the system capacity may be maximized dynamically, depending on the system load and the physical configuration. An optimization of parameter and capacity thus becomes possible.
Claims21
A method of selecting a handover parameter in a cellular network, said method comprising the steps of:
- selecting the handover parameter from a plurality of handover parameters;
- measuring a delay of a handover procedure;
- and
- setting said selected handover parameter based on the result of said measured delay;
- wherein said measuring step comprises measuring said delay of said handover procedure and wherein said handover delay comprises at least one of a round trip delay of a physical layer protocol signaling, a delay between a radio network controlling device and a base station device, a measurement delay at a terminal device, and a processing delay of said cellular network;
- and
- wherein said measuring step comprises measuring said handover delay comprising said physical layer protocol and wherein said physical layer protocol comprises a radio resource control protocol.
A method of selecting a handover parameter in a cellular network, said method comprising the steps of:
- selecting the handover parameter from a plurality of handover parameters;
- measuring a delay of a handover procedure;
- and
- setting said selected handover parameter based on the result of said measured delay;
- wherein said measuring step comprises measuring an uplink delay based on an event report propagation time using time stamps, and measuring a downlink delay based on a physical channel reconfiguration message.
A network device for selecting a handover parameter in a cellular network, said device comprising:
- selecting means for selecting the handover parameter from a plurality of handover parameters;
- measuring means for measuring a delay of a handover procedure;
- and
- setting means for setting said selected handover parameter in response to said measured delay;
- wherein said handover delay comprises at least one of a round trip delay of a physical layer protocol signaling, a delay between a radio network controlling device and a base station device, a measuring delay at a terminal device, and a processing delay of said cellular network;
- and
- wherein said physical layer protocol is a radio resource control protocol.
A network device for selecting a handover parameter in a cellular network, said device comprising:
- selecting means for selecting the handover parameter from a plurality of handover parameters;
- measuring means for measuring a delay of a handover procedure;
- and
- setting means for setting said selected handover parameter in response to said measured delay;
- wherein said measuring means is arranged to measure an uplink delay based on an event report propagation time, and to measure a downlink delay based on a physical channel reconfiguration message.
Dependencies are inferred from the claim text.