Device and method for administering and assigning radio transmission channels in mobile radio networks

• US 6,317,598 B1
• Filed: 12/20/1999
• Issued: 11/13/2001
• Est. Priority Date: 06/19/1997
• Status: Expired due to Term

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Wiesen, Michael, Farber, Michael
• Primary Examiner(s): Kincaid, Lester G.
• Application Number:
  US09/468,376
• Time in Patent Office: 694 Days
• Field of Search: 455/436-444, 455/450-453, 455/560, 455/561, 455/509, 455/514, 455/525, 455/67.1, 455/62, 455/414, 370/329
• US Class Current: 455/443
• CPC Class Codes: H04W 16/10 Dynamic resource partitioning
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 72/02 Selection of wireless resources by user or terminal
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 88/08 Access point devices
• CPC Class Codes: H04W 88/12 Access point controller devices

Abstract

A device for assigning radio transmission channels administers the radio transmission channels within a radio zone and optimizes the utilization of the radio transmission channels. The radio transmission channels for communications links from/to a mobile station are assigned to at least one base station. The device for assigning the radio transmission channels includes a signal evaluation device, a memory device, and a control device. The memory device stores matrices with one or more parameters. The assignment of the radio transmission channels advantageously changes dynamically as a function of the variation of the parameters in the matrices. A method for administering and assigning radio transmission channels is also provided.

Claims

1. In a mobile radio network having base stations supplying radio resources to overlapping radio cells and having a mobile station located in a radio zone of the mobile radio network, a device for administering and assigning radio transmission channels, comprising:

a signal evaluation device to be connected to the base stations, said signal evaluation device determining transmission properties between the mobile station and the base stations;

a memory device connected to said signal evaluation device and storing at least one selection matrix and at least one resource matrix, said memory device storing the transmission properties as parameters in said at least one selection matrix, the transmission properties being assigned to respective ones of the base stations, said memory device storing a service class of a communications link as a further parameter, and said memory device administering radio transmission channels to be assigned in the radio zone, the radio transmission channels being parameters in said at least one resource matrix; and

a control device connected to said memory device, said control device evaluating the parameters in said at least one selection matrix and assigning at least one of the radio transmission channels and at least one of the base stations to the communications link associated with the mobile station such that radio transmission channels associated with a plurality of the base stations are assigned to the communications link associated with the service class.

2. The device according to claim 1, wherein said at least one selection matrix is a plurality of selection matrices, a respective one of said selection matrices being stored for each mobile station in the radio zone.

3. The device according to claim 1, wherein said memory device additionally stores properties and performance features of the mobile station as parameters in said at least one selection matrix, and said control device takes into account the properties and performance features of the mobile station when assigning the at least one of the radio transmission channels and the at least one of the base stations.

4. The device according to claim 1, wherein said memory device additionally stores a time period indicating how long the mobile station is located in the radio cells as a parameter in said at least one selection matrix, and said control device takes into account the time period when assigning the at least one of the radio transmission channels and the at least one of the base stations.

5. The device according to claim 1, wherein said memory device stores the radio transmission channels together with a respective state of the radio transmission channels as parameters in said at least one resource matrix, and said control device takes into account the transmission channels together with the respective state when assigning the at least one of the radio transmission channels.

6. The device according to claim 1, wherein the device for administering and assigning radio transmission channels is implemented in a switching device connected to the mobile radio network.

7. The device according to claim 1, wherein the device for administering and assigning radio transmission channels is implemented as a stand-alone component in the mobile radio network and is connected to a switching device.

8. A network controller configuration, comprising:

a plurality of devices for assigning radio transmission channels, said plurality of devices including a first device and a second device connected to said first device, each of said first and second devices including;

a signal evaluation device to be connected to base stations supplying radio resources to overlapping radio cells, said signal evaluation device determining transmission properties between a mobile station located in a radio zone and the base stations;

a memory device connected to said signal evaluation device and storing at least one selection matrix and at least one resource matrix, said memory device storing the transmission properties as parameters in said least one selection matrix, the transmission properties being assigned to respective ones of the base stations, said memory device storing a service class of a communications link as a further parameter, and said memory device administering radio transmission channels to be assigned in the radio zone, the radio transmission channels being parameters in said at least one resource matrix; and

a control device connected to said memory device, said control device evaluating the parameters in said at least one selection matrix and assigning at least one of the radio transmission channels and at least one of the base stations to the communications link associated with the mobile station.

9. A method for administering and assigning radio transmission channels to at least one communications link of a mobile radio network, the method which comprises:

connecting at least one device for administering and assigning radio transmission channels to at least two base stations, the at least two base stations supplying respective overlapping radio cells with radio resources;

determining and evaluating transmission properties between the at least two base stations and at least one mobile station located in a radio zone of the at least one device for administering and assigning the radio transmission channels;

storing the transmission properties as parameters in a selection matrix;

assigning the transmission properties to respective ones of the at least two base station;

storing a service class of a communications link associated with the at least one mobile station as a further parameter in the selection matrix;

assigning, with the device for administering and assigning the radio transmission channels, at least one of the radio transmission channels and at least one of the at least two base station to the communications link associated with the at least one mobile station as a function of an evaluation of the parameters and the further parameter in the selection matrix such that radio transmission channels associated with a plurality of the at least two base stations are assigned to the communications link associated with the service class; and

administering the radio transmission channels assignable in the radio zone in a resource matrix.

10. The method according to claim 9, which comprises determining the transmission properties with at least one of the at least one mobile station and a respective one of the at least two base stations.

11. The method according to claim 9, which comprises cyclically updating the parameters in at least one of the selection matrix and the resource matrix with a signal evaluation device.

12. The method according to claim 9, which comprises selecting, with the device for administering and assigning the radio transmission channels, the at least one of the radio transmission channels and the at least one of the at least two base stations for the communications link associated with the at least one mobile station such that optimum transmission properties are ensured.

13. The method according to claim 9, which comprises initiating a new assignment of the radio transmission channels and a new selection of the at least one of the at least two base stations for the communications link associated with the at least one mobile station as a function of changes in the parameters in the selection matrix.

14. The method according to claim 9, which comprises:

assigning a given number of the at least two base stations to the communications link associated with the at least one mobile station; and

selecting the given number as a function of requirements of the service class in terms of the transmission properties.

15. The method according to claim 9, which comprises:

assigning a given number of the at least two base stations to the communications link associated with the at least one mobile station; and

selecting the given number as a function of a current location of the at least one mobile station.

16. The method according to claim 9, which comprises:

assigning a given number of the at least two base stations to the communications link associated with the at least one mobile station; and

selecting the given number as a function of a radio cell level in a hierarchical radio cell structure.

17. The method according to claim 16, which comprises selecting the given number as a function of a time period, the at least one mobile station being located in a given one of the radio cells during the time period.

18. The method according to claim 9, which comprises assigning radio transmission channels associated with a given one of the at least two base stations to the communications link associated with the service class.

19. The method according to claim 9, which comprises assigning radio transmission channels associated with a plurality of the at least two base stations to the communications link associated with the service class.

20. The method according to claim 9, which comprises assigning radio transmission channels associated with a given one of the at least two base stations to at least two communications links associated with different service classes.

21. The method according to claim 9, which comprises assigning radio transmission channels associated with a plurality of the at least two base stations to at least two communications links associated with different service classes.

22. The method according to claim 20, which comprises assigning respective radio transmission channels of a plurality of the at least two base stations for the different service classes.

23. The method according to claim 21, which comprises assigning respective radio transmission channels of a plurality of the at least two base stations for the different service classes.

24. The method according to claim 9, which comprises assigning radio transmission channels of a plurality of the at least two base stations to an asymmetrical communications link in a downlink direction from the plurality of the at least two base stations to the at least one mobile station and in an uplink direction from the at least one mobile station to the plurality of the at least two base stations.

25. The method according to claim 24, which comprises assigning radio transmission channels of given ones of the at least two base stations to the at least one mobile station in the downlink direction and assigning radio transmission channels of other ones of the at least two base stations to the at least one mobile station in the uplink direction.

26. The method according to claim 9, which comprises:

dividing the communications link into a plurality of signal components; and

assigning the plurality of signal components to different ones of the radio transmission channels associated with different ones of the at least two base stations.

27. The method according to claim 26, which comprises sequentially assigning the signal components of the communications link to different radio transmission channels of a plurality of the at least two base stations.

28. The method according to claim 26, which comprises assigning the signal components of the communications link in parallel to different radio transmission channels of a plurality of the at least two base stations.

29. The method according to claim 9, which comprises administering parameters of a plurality of mobile stations with identical transmission properties in a common selection matrix.

30. The method according to claim 9, which comprises administering parameters of a plurality of mobile stations with communications links of identical service classes in a common selection matrix.

31. In a mobile radio network having base stations supplying radio resources to overlapping radio cells and having a mobile station located in a radio zone of the mobile radio network, a device for administering and assigning radio transmission channels, comprising:

a signal evaluation device to be connected to the base stations, said signal evaluation device determining transmission properties between the mobile station and the base stations;

a memory device connected to said signal evaluation device and storing at least one selection matrix and at least one resource matrix, said memory device storing the transmission properties as parameters in said at least one selection matrix, the transmission properties being assigned to respective ones of the base stations, said memory device storing service classes of communications links as further parameters, and said memory device administering radio transmission channels to be assigned in the radio zone, the radio transmission channels being parameters in said at least one resource matrix; and

a control device connected to said memory device, said control device evaluating the parameters in said at least one selection matrix and assigning at least one of the radio transmission channels and at least one of the base stations to the communications link associated with the mobile station such that radio transmission channels associated with a given one of the base stations are assigned to at least two of the communications links associated with different ones of the service classes.

32. In a mobile radio network having base stations supplying radio resources to overlapping radio cells and having a mobile station located in a radio zone of the mobile radio network, a device for administering and assigning radio transmission channels, comprising:

a signal evaluation device to be connected to the base stations, said signal evaluation device determining transmission properties between the mobile station and the base stations;

a memory device connected to said signal evaluation device and storing at least one selection matrix and at least one resource matrix, said memory device storing the transmission properties as parameters in said at least one selection matrix, the transmission properties being assigned to respective ones of the base stations, said memory device storing service classes of communications links as further parameters, and said memory device administering radio transmission channels to be assigned in the radio zone, the radio transmission channels being parameters in said at least one resource matrix; and

a control device connected to said memory device, said control device evaluating the parameters in said at least one selection matrix and assigning at least one of the radio transmission channels and at least one of the base stations to the communications link associated with the mobile station such that radio transmission channels associated with a plurality of the base stations are assigned to at least two of the communications links associated with different ones of the service classes.

33. In a mobile radio network having base stations supplying radio resources to overlapping radio cells and having a mobile station located in a radio zone of the mobile radio network, a device for administering and assigning radio transmission channels, comprising:

a signal evaluation device to be connected to the base stations, said signal evaluation device determining transmission properties between the mobile station and the base stations;

a memory device connected to said signal evaluation device and storing at least one selection matrix and at least one resource matrix, said memory device storing the transmission properties as parameters in said at least one selection matrix, the transmission properties being assigned to respective ones of the base stations, said memory device storing a service class of a communications link as a further parameter, and said memory device administering radio transmission channels to be assigned in the radio zone, the radio transmission channels being parameters in said at least one resource matrix; and

a control device connected to said memory device, said control device evaluating the parameters in said at least one selection matrix and assigning at least one of the radio transmission channels and at least one of the base stations to the communications link associated with the mobile station such that radio transmission channels associated with a plurality of the base stations are assigned to an asymmetrical communications link in a downlink direction from the plurality of the base stations to the mobile station and in an uplink direction from the mobile station to the plurality of the base stations.

34. In a mobile radio network having base stations supplying radio resources to overlapping radio cells and having a mobile station located in a radio zone of the mobile radio network, a device for administering and assigning radio transmission channels, comprising:

a signal evaluation device to be connected to the base stations, said signal evaluation device determining transmission properties between the mobile station and the base stations;

a memory device connected to said signal evaluation device and storing at least one selection matrix and at least one resource matrix, said memory device storing the transmission properties as parameters in said at least one selection matrix, the transmission properties being assigned to respective ones of the base stations, said memory device storing a service class of a communications link as a further parameter, and said memory device administering radio transmission channels to be assigned in the radio zone, the radio transmission channels being parameters in said at least one resource matrix; and

a control device connected to said memory device, said control device evaluating the parameters in said at least one selection matrix and assigning at least one of the radio transmission channels and at least one of the base stations to the communications link associated with the mobile station, said control device dividing the communications link into a plurality of signal components and assigning the plurality of signal components to different ones of the radio transmission channels associated with different ones of the base stations.

35. A method for administering and assigning radio transmission channels to at least one communications link of a mobile radio network, the method which comprises:

connecting at least one device for administering and assigning radio transmission channels to at least two base stations, the at least two base stations supplying respective overlapping radio cells with radio resources;

determining and evaluating transmission properties between the at least two base stations and at least one mobile station located in a radio zone of the at least one device for administering and assigning the radio transmission channels;

storing the transmission properties as parameters in a selection matrix;

assigning the transmission properties to respective ones of the at least two base station;

storing service classes of communications links associated with the at least one mobile station as further parameters in the selection matrix;

assigning, with the device for administering and assigning the radio transmission channels, at least one of the radio transmission channels and at least one of the at least two base station to a communications link associated with the at least one mobile station as a function of an evaluation of the parameters and the further parameter in the selection matrix such that radio transmission channels associated with a given one of the at least two base stations are assigned to at least two communications links associated with different service classes; and

administering the radio transmission channels assignable in the radio zone in a resource matrix.

36. A method for administering and assigning radio transmission channels to at least one communications link of a mobile radio network, the method which comprises:

connecting at least one device for administering and assigning radio transmission channels to at least two base stations, the at least two base stations supplying respective overlapping radio cells with radio resources;

determining and evaluating transmission properties between the at least two base stations and at least one mobile station located in a radio zone of the at least one device for administering and assigning the radio transmission channels;

storing the transmission properties as parameters in a selection matrix;

assigning the transmission properties to respective ones of the at least two base station;

storing service classes of communications links associated with the at least one mobile station as further parameters in the selection matrix;

assigning, with the device for administering and assigning the radio transmission channels, at least one of the radio transmission channels and at least one of the at least two base station to a communications link associated with the at least one mobile station as a function of an evaluation of the parameters and the further parameter in the selection matrix such that radio transmission channels associated with a plurality of the at least two base stations are assigned to at least two communications links associated with different service classes; and

administering the radio transmission channels assignable in the radio zone in a resource matrix.

37. A method for administering and assigning radio transmission channels to at least one communications link of a mobile radio network, the method which comprises:

connecting at least one device for administering and assigning radio transmission channels to at least two base stations, the at least two base stations supplying respective overlapping radio cells with radio resources;

determining and evaluating transmission properties between the at least two base stations and at least one mobile station located in a radio zone of the at least one device for administering and assigning the radio transmission channels;

storing the transmission properties as parameters in a selection matrix;

assigning the transmission properties to respective ones of the at least two base station;

storing a service class of a communications link associated with the at least one mobile station as a further parameter in the selection matrix;

assigning, with the device for administering and assigning the radio transmission channels, at least one of the radio transmission channels and at least one of the at least two base station to the communications link associated with the at least one mobile station as a function of an evaluation of the parameters and the further parameter in the selection matrix such that radio transmission channels of a plurality of the at least two base stations are assigned to an asymmetrical communications link in a downlink direction from the plurality of the at least two base stations to the at least one mobile station and in an uplink direction from the at least one mobile station to the plurality of the at least two base stations; and

administering the radio transmission channels assignable in the radio zone in a resource matrix.

38. A method for administering and assigning radio transmission channels to at least one communications link of a mobile radio network, the method which comprises:

connecting at least one device for administering and assigning radio transmission channels to at least two base stations, the at least two base stations supplying respective overlapping radio cells with radio resources;

determining and evaluating transmission properties between the at least two base stations and at least one mobile station located in a radio zone of the at least one device for administering and assigning the radio transmission channels;

storing the transmission properties as parameters in a selection matrix;

assigning the transmission properties to respective ones of the at least two base station;

storing a service class of a communications link associated with the at least one mobile station as a further parameter in the selection matrix;

assigning, with the device for administering and assigning the radio transmission channels, at least one of the radio transmission channels and at least one of the at least two base station to the communications link associated with the at least one mobile station as a function of an evaluation of the parameters and the further parameter in the selection matrix;

dividing the communications link into a plurality of signal components;

assigning the plurality of signal components to different ones of the radio transmission channels associated with different ones of the at least two base stations; and

administering the radio transmission channels assignable in the radio zone in a resource matrix.