Method and apparatus for cell selection in flexible spectrum use radio system
View Patent ↗In accordance with an example embodiment of the present invention, an apparatus comprises a transceiver configured to receive beacons from a plurality of access points; a processor configured to estimate an expected bit-rate for the plurality of access points based at least in part on a frequency spectrum use resourcing, select an access point from the plurality of access points based at least in part on a target expected bit-rate and cause the transceiver to connect to the selected access point.
1. An apparatus, comprising:
a transceiver configured to receive beacons from a plurality of access points; and
a processor configured to:
estimate an expected bit-rate for the plurality of access points based at least in part on a flexible spectrum use resourcing;
select an access point from the plurality of access points based at least in part on a target expected bit-rate; and
cause the transceiver to connect to the selected access point,
wherein the expected bit-rate for at least one of the plurality of access points is estimated based at least in part on a bit-rate per resource unit and an average number of resource units per transmit time interval.
2. The apparatus of claim 1 , wherein the bit-rate per resource unit for at least one of the plurality of access points is established based at least in part on an estimated signal-to-interference and noise ratio.
3. The apparatus of claim 1 , wherein the bit-rate per resource unit for at least one of the plurality of access points is obtained from a look-up table based on an estimated signal-to-interference and noise ratio.
4. The apparatus of claim 2 or 3 , wherein the estimated signal-to-interference and noise ratio for at least one of the plurality of access points is based at least in part on a determined path loss and an interference from the least one of the plurality of access points.
5. The apparatus of claim 4 , wherein the determined path loss and interference correspond to an Uplink (UL) path.
6. The apparatus of claim 4 , wherein the determined interference is provided in the beacons received from the access points as an average UL interference.
7. The apparatus of claim 1 , wherein the average number of resource units per transmit time interval for each access point is obtained from the received beacons.
8. The apparatus of claim 1 , wherein the average number of resource units per transmit time interval for each access point is obtained by combining information of an access point load and flexible spectrum use resourcing.
9. The apparatus of claim 8 , wherein the access point load is determined by one of average resources used per frame, average transmit time interval or number of active UEs served by the access point.
10. A method, comprising:
receiving beacons from a plurality of access points;
estimating an expected bit-rate for the plurality of access points based at least in part on a flexible spectrum use resourcing;
selecting an access point from the plurality of access points based at least in part on a target expected bit-rate; and
connecting to the selected access point,
wherein the expected bit-rate for at least one of the plurality of access points is estimated based at least in part on a bit-rate per resource unit and an average number of resource units per transmit time interval.
11. The method of claim 10 , wherein the bit-rate per resource unit for at least one of the plurality of access points is established based at least in part on an estimated signal-to-interference and noise ratio.
12. The method of claim 10 , wherein the bit-rate per resource unit for at least one of the plurality of access points is obtained from a look-up table based on an estimated signal-to-interference and noise ratio.
13. The method of claim 10 , wherein the average number of resource units per transmit time interval for each access point is obtained by combining information of an access point load and flexible spectrum use resourcing.
14. The method of claim 13 , wherein the access point load is determined by one of average resources used per frame, average transmit time interval or number of active UEs served by the access point.
15. An apparatus, comprising:
at least one processor; and
at least one memory including computer program code,
the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following:
receiving beacons from a plurality of access points;
estimating an expected bit-rate for the plurality of access points based at least in part on a flexible spectrum use resourcing;
selecting an access point from the plurality of access points based at least in part on a target expected bit-rate; and
connecting to the selected access point,
wherein the expected bit-rate for at least one of the plurality of access points is estimated based at least in part on a bit-rate per resource unit and an average number of resource units per transmit time interval.
16. The apparatus of claim 15 , wherein the access point is one of a Base Station (BS), Femto BS, Node B (NB) or Evolved NB (eNB).
17. The apparatus of claim 15 , wherein the average number of resource units per transmit time interval for each access point is obtained by combining information of an access point load and flexible spectrum use resourcing.