System and method for providing intelligent cell reselection for delay sensitive data applications
View Patent ↗A mobile station for receiving delay-sensitive data from a wireless communications network is provided with a data buffer and cell reselection controller. The data buffer receives data from the network and stores the data for communication to a delay-sensitive data application. The cell reselection controller selectively inhibits cell reselection in order to meet requirements of the delay-sensitive data application. By intelligently controlling cell reselection, delay sensitive data may be received in a more reliable fashion, thereby increasing performance of the data application.
1. A non-transitory, computer-readable medium of a mobile station comprising computer-executable instructions that, when executed by a processor of the mobile station, cause the processor to perform steps of a method, comprising:
receiving data at the mobile station from a serving cell of a wireless communications network, the data relating to a data application associated with the mobile station;
measuring a serving cell signal strength of the serving cell;
measuring a second signal strength of another cell;
comparing the serving cell signal strength to the second signal strength;
initiating cell reselection if:
the data application does not comprise a delay-sensitive application;
a break in the data received for the data application comprises a natural break; and
the second signal strength is sufficient; and
inhibiting the cell reselection if:
the data application comprises the delay-sensitive application; and
the cell reselection will result in loss of a data packet for the delay-sensitive data application.
2. The non-transitory, computer-readable medium of claim 1 , wherein the instructions for inhibiting the cell reselection if the cell reselection will result in the loss of the data packet for the delay-sensitive data application further comprise instructions for determining that a break in the data received for the data application does not comprise a natural break.
3. The non-transitory, computer-readable medium of claim 1 , wherein the instructions for inhibiting the cell reselection further comprise instructions for inhibiting the cell reselection based upon a network parameter.
4. The non-transitory, computer-readable medium of claim 3 , wherein the instructions for inhibiting the cell reselection based upon the network parameter further comprise instructions for inhibiting the cell reselection based upon multiuser interference contributing to delay that could effect the delay-sensitive data application.
5. The non-transitory, computer-readable medium of claim 3 , wherein the instructions for inhibiting the cell reselection based upon the network parameter further comprise instructions for inhibiting the cell reselection based upon multipath fading that contributes to delay that could effect the delay-sensitive data application.
6. The non-transitory, computer-readable medium of claim 3 , wherein the instructions for inhibiting the cell reselection based upon the network parameter further comprise instructions for inhibiting the cell reselection based upon shadowing that contributes to delay that could effect the delay-sensitive data application.
7. The non-transitory, computer-readable medium of claim 3 , wherein the instructions for inhibiting the cell reselection based upon the network parameter further comprise instructions for inhibiting the cell reselection based upon radio transmission errors that contribute to delay that could effect the delay-sensitive data application.
8. The non-transitory, computer-readable medium of claim 7 , wherein the instructions for inhibiting the cell reselection based upon the network parameter further comprise instructions for inhibiting the cell reselection based upon the radio transmission errors occurring near an edge of the serving cell.
9. The non-transitory, computer-readable medium of claim 7 , wherein the instructions for inhibiting the cell reselection based upon the network parameter further comprise instructions for inhibiting the cell reselection based upon the radio transmission errors occurring in a region of overlap between adjacent cells.
10. The non-transitory, computer-readable medium of claim 3 , wherein the instructions for inhibiting the cell reselection based upon the network parameter further comprise instructions for inhibiting the cell reselection based upon a time required by the wireless communications network to reselect the cell.
11. The non-transitory, computer-readable medium of claim 1 , wherein the instructions for inhibiting the cell reselection if the data application comprises the delay-sensitive application further comprise instructions for inhibiting the cell reselection if the data application comprises the delay-sensitive application, and based upon an operational parameter relating to a delay sensitivity of the delay-sensitive data application.
12. The non-transitory, computer-readable medium of claim 11 , wherein the operational parameter comprises a quality of service (QoS) requirement of the data application.
13. The non-transitory, computer-readable medium of claim 1 , wherein the data application comprises a voice-over-IP (VoIP) application.
14. The non-transitory, computer-readable medium of claim 1 , wherein the data application comprises a streaming application.
15. The non-transitory, computer-readable medium of claim 14 , wherein the streaming application is a video streaming application that streams video from the Internet.
16. The non-transitory, computer-readable medium of claim 14 , wherein the streaming application is an audio streaming application that streams audio from the Internet.
17. The non-transitory, computer-readable medium of claim 1 , wherein the data application comprises a peer-to-peer application.
18. The non-transitory, computer-readable medium of claim 1 , wherein the wireless communications network comprises a Global System for Mobile communications (GSM) network that supports General Packet Radio Service (GPRS) and Enhanced Data rate for GSM Evolution (EDGE).
19. The non-transitory, computer-readable medium of claim 1 , further comprising instructions for:
storing the data in a data buffer of the mobile station for communication to the data application; and
determining that the data application comprises the delay-sensitive data application based, at least partially, upon a status of the data buffer.