Claims
- 1. A method of reducing radio interference in a mobile communications system comprising:communicating between at least one base station and several mobile stations in a mobile communications system having several traffic channels for communications between the base station and the mobile stations; receiving signals at the base station and in the mobile stations on the traffic channels, wherein the signals received at a same reception point cause interference to one another; classifying the received signals into two classes according to data rate, wherein the signals having a higher data rate than a threshold data rate value are classified as belonging to a top class while the signals having a lower data rate than the threshold data rate value are classified as belonging to a lower class, and subtracting the signals belonging to the top class from the received signals at the same reception point for reducing a total interference.
- 2. The method according to claim 1 further comprising providing at least one adaptive antenna at the reception point for processing the received signals at the reception point into one of the classes.
- 3. The method according to claim 2 further comprising processing the signals of the top class, with the adaptive antenna, by subtracting of the signals of the top class from the received signals.
- 4. The method according to claim 2, wherein the processing the signals at the reception point further comprises error correcting individual signals of the lower class.
- 5. The method according to claim 4, wherein the error correcting is provided by channel coding.
- 6. The method according to claim 4, wherein the error correcting is provided by retransmission.
- 7. The method according to claim 1, wherein the signals belonging to the lower class forms an intermediate signal formed by subtracting the signals of the top class from the signal received at the reception point, the intermediate signal is divided into at least two subclasses according to a data rate of the signals belonging to the intermediate signal, for performing an interference reducing action in one of the subclasses.
- 8. The method according to claim 7, wherein the interference reducing action is provided by error correction of individual signals of at least one subclass.
- 9. The method according to claim 8, wherein the error correction is provided by channel coding.
- 10. The method according to claim 8, wherein the error correction is provided by retransmission.
- 11. The method according to claim 7, wherein the interference reducing action is provided by using an adaptive antenna which is arranged to receive individual signals of a subclass.
- 12. The method according to claim 7, a specific interference reducing action is performed in several subclasses.
- 13. The method according to claim 1, wherein a complexity of signal decoding is used with the data rate for classifying the received signals.
- 14. The method according to claim 7, wherein a complexity of signal decoding is used with the data rate for classifying the received signals.
- 15. The method according to claim 1, wherein the classifying received signals the threshold value is defined according to processing resources needed by the mobile communications system.
- 16. The method according to claim 7, wherein the classifying received signals the threshold value is defined according to processing resources needed by the mobile communications system.
- 17. The method according to claim 1, wherein the classification of a threshold value is defined on a receiver basis.
- 18. The method according to claim 1, wherein the classifying the received signals further comprising interference information concerning signals to be processed is relayed from elsewhere in the network, and classification of the signals are performed according to the threshold value and relayed interference information.
- 19. A method of reducing radio interference in a mobile communications system comprising:communicating between at least one base station and several mobile stations in a mobile communications system having several traffic channels for communications between the base station and the mobile stations; receiving signals at the base station and in the mobile stations on the traffic channels, wherein the signals received at a same reception point cause interference to one another; classifying the received signals into two classes according to an interference tolerance, wherein the signals having a lower tolerance than a threshold tolerance value are classified as belonging to a top class while the signals having a higher tolerance than the threshold tolerance value are classified as belonging to a lower class, and subtracting the signals belonging to the top class from the received signal at the same reception point for reducing the total interference.
- 20. The method according to claim 19, further comprising providing at least one adaptive antenna at the reception point for processing the received signals at the reception point into one of the classes.
- 21. The method according to claim 20 further comprising processing the signals of the top class with the adaptive antenna by subtracting of the signals of the top class from the received signals.
- 22. The method according to claim 20, wherein the processing the signals at the reception point further comprises error correcting individual signals of the lower class.
- 23. The method according to claim 22, wherein the error correcting is provided by channel coding.
- 24. The method according to claim 22, wherein the error correcting is provided by retransmission.
- 25. The method according to claim 19, wherein the signals belonging to the lower class forms an intermediate signal formed by subtracting the signals of the top class from the signal received at the reception point, the intermediate signal is divided into at least two subclasses according to the interference tolerence of the signals belonging to the intermediate signal, for performing an interference reducing action in one of the subclasses.
- 26. The method according to claim 25, wherein the interference reducing action is provided by error correction of individual signals of at least one subclass.
- 27. The method according to claim 26, wherein the error correction is provided by channel coding.
- 28. The method according to claim 26, wherein the error correction is provided by retransmission.
- 29. The method according to claim 25, wherein the interference reducing action is provided by using an adaptive antenna which is arranged to receive individual signals of a subclass.
- 30. The method according to claim 25, a specific interference reducing action is performed in several subclasses.
- 31. The method according to claim 19, wherein a complexity of signal decoding is used with the interference tolerance for classifying the received signals.
- 32. The method according to claim 25, wherein a complexity of signal decoding is used with the interference tolerance for classifying the received signals.
- 33. The method according to claim 19, wherein the classifying received signals the threshold value is defined according to processing resources needed by the mobile communications system.
- 34. The method according to claim 25, wherein the classifying received signals the threshold value is defined according to processing resources needed by the mobile communications system.
- 35. The method according to claim 19, wherein the classification of a threshold value is defined on a receiver basis.
- 36. The method according to claim 19, wherein the classifying the received signals, interference information concerning signals to be processed is relayed from elsewhere in the network, and classification of the signals are performed according to the threshold value and relayed interference information.
- 37. The method according to claim 19, wherein the interference tolerance of the signal is determined according to a transmission delay permissible for the signal.
- 38. The method according to claim 25, wherein the interference tolerance of the signal is determined according to a transmission delay permissible for the signal.
- 39. The method according to claim 19, wherein the interference tolerance of the signal is determined according to a bit error rate permissible for the signal.
- 40. The method according to claim 25, wherein the interference tolerance of the signal is determined according to a bit error rate permissible for the signal.
- 41. A method of reducing radio interference in a mobile communications system comprising:communicating between at least one base station and several mobile stations in a mobile communications system having several traffic channels for communications between the base station and the mobile stations; receiving signals at the base station and in the mobile stations on the traffic channels, wherein the signals received at a same reception point cause interference to one another; classifying the received signals into two classes according to a complexity of decoding of the signals, wherein the signals having weak channel coding and are below a threshold value of the complexity are classified as belonging to a top class while the signals having powerful channel coding and are above the threshold value are classified as belonging to a lower class, and subtracting the signals belonging to the top class from the received signal at the same reception point for reducing the total interference.
- 42. The method according to claim 41, further comprising providing at least one adaptive antenna at the reception point by processing the received signals at the reception point into one of the classes.
- 43. The method according to claim 42 further comprising processing the signals of the top class with the adaptive antenna for subtracting of the signals of the top class from the received signals.
- 44. The method according to claim 41, wherein the signals belonging to the lower class forms an intermediate signal formed by subtracting the signals of the top class from the signal received at the reception point, the intermediate signal is divided into at least two subclasses according to of the complexity of decoding of the signals belonging to the intermediate signal, for performing interference reducing action in one of the subclasses.
- 45. The method according to claim 44, wherein the interference reducing action is provided by using an adaptive antenna which is arranged to handle individual signals of the subclass.
- 46. The method according to claim 41, wherein a subclass specific interference reducing action is performed in several subclasses.
- 47. The method according to claim 41, wherein for classifying received signals the threshold value is defined according to the processing resources needed by the mobile communications system.
- 48. The method according to claim 44, wherein for classifying received signals the threshold value is defined according to the processing resources needed by the mobile communications system.
- 49. The method according to claim 41, wherein the classification of a threshold value is defined on a receiver basis.
- 50. The method according to claim 41, wherein for the classification of received signals interference information concerning signals to be processed Is relayed from elsewhere in the network, and classification of signals is performed according to the threshold value and relayed interference information.
Priority Claims (1)
Number |
Date |
Country |
Kind |
971477 |
Apr 1997 |
FI |
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Parent Case Info
This application is a continuation of PCT/FI98/00302, filed Apr. 7, 1998.
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Continuations (1)
|
Number |
Date |
Country |
Parent |
PCT/FI98/00302 |
Apr 1998 |
US |
Child |
09/401130 |
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US |