Measurements in communications systems
View Patent ↗A method of selecting a cell for handover of a mobile station to another communication system. A command is sent to a mobile station from a first network element. The command includes a request to perform compressed mode measurements at the mobile station of a neighboring cell. The neighboring cell uses a different communication means than the first network element. Compressed mode measurement results are received from the mobile station at the first network element. The received compressed mode measurement results are weighted with indicators of a prioritized neighbor cell list to form a prioritized list. A second command is sent to the mobile station from the first network element. The second command includes a second request to decode identification codes at the mobile station based on the prioritized list. An indicator of a suitable cell from the prioritized list is received from the mobile station at the first network element. An instruction is sent to the mobile station from the first network element after receiving the indicator. The instruction stops decoding identification codes at the mobile station.
1. A method of selecting a cell for handover of a mobile station to another communication system, the method comprising:
sending a command to a mobile station from a first network element, wherein the command includes a request to perform compressed mode measurements at the mobile station of a neighboring cell, wherein the neighboring cell uses a different communication means than the first network element;
receiving compressed mode measurement results from the mobile station at the first network element;
weighting the received compressed mode measurement results with indicators of a prioritized neighbor cell list to form a prioritized list, wherein the weighting comprises multiplying the received compressed mode measurement results by the indicators of the prioritized neighbor cell list;
sending a second command to the mobile station from the first network element, wherein the second command includes a second request to decode identification codes at the mobile station based on the prioritized list;
receiving an indicator of a suitable cell from the prioritized list from the mobile station at the first network element; and
sending an instruction to the mobile station from the first network element after receiving the indicator, the instruction to stop decoding identification codes at the mobile station.
2. The method as claimed in claim 1 , further comprising receiving the prioritized neighbor cell list from a second network node.
3. The method as claimed in claim 1 , wherein the indicators may be based on information selected from at least one of a cell load, a signal strength, a quality-of-service, a cell capacity, a service priority, and a cell quality indicator.
4. The method as claimed in claim 1 , further comprising triggering a handover of the mobile station from the first network element to the suitable cell.
5. A method of selecting a cell for handover of a mobile station to another communication system, the method comprising:
sending a command to a mobile station from a first network element, wherein the command includes a request to perform compressed mode measurements at the mobile station of a neighboring cell, wherein the neighboring cell uses a different communication means than the first network element;
receiving compressed mode measurement results from the mobile station at the first network element;
mapping cell identifiers to the received compressed mode measurement results;
sending a first request to a second network element from the first network element, wherein the first request is to prioritize the mapped cell identifiers based at least partially on the received compressed mode measurement results;
receiving a prioritized list of neighboring cells from the second network element at the first network element;
selecting a first number of cells of the neighboring cells based on the received compressed mode measurement results;
sending a second command to the mobile station from the first network element, wherein the second command includes a second request to decode identification codes at the mobile station of the selected first number of cells;
identifying a second number of cells of the received prioritized list; and
if the first number of cells is included in the identified second number of cells, triggering a handover of the mobile station from the first network element to a cell of the selected first number of cells.
6. The method as claimed in claim 5 , wherein the first number of cells is equal to one.
7. The method as claimed in claim 5 , wherein the cell is a highest priority cell of the received prioritized list.
8. The method as claimed in claim 5 , further comprising, if the first number of cells is not included in the identified second number of cells, sending a third command to the mobile station from the first network element, wherein the third command includes a third request to decode an identification code at the mobile station of a highest priority cell of the received prioritized list.
9. The method as claimed in claim 5 , further comprising, if the first number of cells is not included in the identified second number of cells, triggering the handover of the mobile station from the first network element to the highest priority cell of the received prioritized list.