Wireless cellular communication system

• US 6,983,150 B2
• Filed: 12/31/1998
• Issued: 01/03/2006
• Est. Priority Date: 04/08/1991
• Status: Expired due to Fees

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Dixon, Robert C.
• Primary Examiner(s): Nguyen, Duc M.
• Application Number:
  US09/224,477
• Publication Number:
  US 20030125030A1
• Time in Patent Office: 2,560 Days
• Field of Search: 455/422, 455/432, 455/436, 455/443, 455/517, 455/574, 455/446, 455/447, 455/450, 455/452.1, 370/276, 370/280, 370/281, 370/335, 370/337, 370/342, 370/347, 375/335, 375/337, 375/200
• US Class Current: 455/450
• CPC Class Codes: H04B 2201/70702 Intercell-related aspects
• CPC Class Codes: H04J 13/16 Code allocation
• CPC Class Codes: H04W 16/02 Resource partitioning among network components, e.g. reuse partitioning
• CPC Class Codes: H04W 16/12 Fixed resource partitioning

Abstract

A wireless communication system including a repeated pattern of cells, in which base station transmitters and user station transmitters for each cell may be assigned a spread-spectrum code for modulating radio signal communication in that cell. Radio signals used in that cell are spread across a bandwidth sufficiently wide that both base station receivers and user station receivers in an adjacent cell may distinguish communication which originates in one cell from another. Adjacent cells may use distinguishable frequencies and distinguishable codes, but it is sufficient if adjacent cells use distinguishable frequencies and identical codes. A repeated pattern of cells allows the codes each to be reused in a plurality of cells.

Claims

1. A method, comprising:

dynamically determining at a control station of a first cellular communications system, the control station controlling a plurality of cells of the first communication system including a first cell, a first code in use by a cell of a second communications system and in closest use to the first cell of the first cellular communications system;

selecting at the control station a second code different from the first code; and

dynamically assigning at the control station the second code to be used in the first cell.

2. A method as claimed in claim 1, further comprising assigning the second code to an additional cell of the first cellular communication system wherein the additional cell is not adjacent to the first cell.

3. A method as claimed in claim 1, further comprising assigning the second code to cells in a pattern of cells of the first cellular communication system wherein cells in the pattern of cells are not adjacent to the first cell.

4. A method as claimed in claim 1, further comprising:

dynamically determining at the control station of the first cellular communication system a first frequency in use by a cell of the second communication system and in closest use to the first cell;

selecting at the control station a second frequency different from the first frequency; and

dynamically assigning at the control station the second frequency to be used in the first cell.

5. A method as claimed in claim 4, further comprising assigning the second frequency to an additional cell of the first communication system wherein the additional cell is not adjacent to the first cell.

6. A method as claimed in claim 4, further comprising assigning the second frequency to cells in a pattern of cells of the first communication system wherein the cells in the pattern of cells are not adjacent to the first cell.

7. A method as claimed in claim 1, comprising:

dynamically determining at the control station a first frequency in closest use to the first cell by a second cell in the second system, separate and apart from the first communication system;

selecting at the control station a second frequency different from the first frequency, and

dynamically assigning at the control station the second frequency for use in the first cell.

8. A method as claimed in claim 7, further comprising assigning at the control station the second frequency to an additional cell wherein the additional cell is not adjacent to the first cell and in the same system as the first cell.

9. A method as claimed in claim 7, further comprising assigning the second frequency to cells of the system of the first cell in a pattern of cells wherein cells in the pattern of cells are not adjacent to the first cell.

10. A method, comprising:

dynamically determining at a control station of a first cellular communications system, the control station controlling a plurality of cells of the first communication system including a first cell, a first frequency in use by a cell of a second communications system and in closest use to the first cell of the first cellular communications system;

selecting at the control station a second frequency different from the first frequency; and

dynamically assigning at the control station the second frequency so the first cell.

11. A method as claimed in claim 10, further comprising assigning at the control station the first frequency to a third cell of the first communication system wherein the third cell is not adjacent to a cell that uses the first frequency.

12. A method as claimed in claim 10, wherein the first cell is in a first system and a cell that uses the first frequency is in a second system.

13. A storage medium having stored thereon instructions that, when executed by a machine, cause the machine to perform operations comprising:

dynamically determining at a control station of a first cellular communications system, the control station controlling a plurality of cells of the first communication system including a first cell, a first code in use by a cell of a second communications system and in closest use to the first cell of the first cellular communications system;

selecting at the control station a second code different from the first code; and

dynamically assigning at the control station the second code to be used in the first cell.

14. A storage medium as claimed in claim 13, wherein the instructions, when executed, further result in assigning the second code to an additional cell of the first cellular communication system wherein the additional cell is not adjacent to the first cell.

15. A storage medium as claimed in claim 13, wherein the instructions, when executed, further result in assigning the second code to cells in a pattern of cells of the first cellular communication system wherein cells in the pattern of cells are not adjacent to the first cell.

16. A storage medium as claimed in claim 13, wherein the instructions, when executed, further result in:

dynamically determining at the control station a first frequency in closest use to the first cell by a second cell in the second system, separate and apart from the first communication system,

selecting at the control station a second frequency different from the first frequency; and

dynamically assigning at the control station the second frequency for use in the first cell.

17. A storage medium as claimed in claim 16, wherein the instructions, when executed, further result in assigning at the control station the second frequency to an additional cell wherein the additional cell is not adjacent to the first cell.

18. A storage medium as claimed in claim 16, wherein the instructions, when executed, further result in assigning the second frequency to cells of the first communication system in a pattern of cells wherein cells in the pattern of cells are not adjacent to the first cell.

19. A storage medium having stored thereon instructions that, when executed by a machine, cause the machine to perform operations comprising:

dynamically determining at a control station of a first cellular communications system, the control station controlling a plurality of cells of the first communication system including a first cell, a first frequency in use by a cell of a second communications system and in closest use to the first cell of the first cellular communications system;

selecting at the control station a second frequency different from the first frequency; and

dynamically assigning at the control station the second frequency to the first cell.

20. A storage medium as claimed in claim 19, wherein the instructions, when executed, further result in assigning at the control station the first frequency to a third cell of the first communication system wherein the third cell is not adjacent to a cell that uses the first frequency.

21. A storage medium claimed in claim 19, wherein the instructions, when executed, further result in assigning the second frequency to cells of the first communication system in a pattern of cells wherein cells in the pattern of cells are not adjacent to the first cell.

22. A storage medium as claimed in claim 19, wherein the instructions, when executed, further result in:

dynamically determining at a control station of a first cellular communications system, the control station controlling a plurality of cells of the first communication system including a first cell, a first code in use by a cell of a second communications system and in closest use to the first cell of the first cellular communications system;

selecting at the control station a second code different from the first code; and

dynamically assigning at the control station the second code to be used in the first cell.

23. The storage medium as claimed in claim 22, wherein the instructions, when executed, further result in assigning the first code to a third cell of the first communication system wherein the third cell is not adjacent to a cell that utilizes the first code.

24. An article as claimed in claim 22, wherein the first cell is in a first system and a second cell that uses the first code is in a second system.

25. A control station, comprising:

a receiver and a transmitter;

wherein the control station dynamically determines a first frequency in closest use to a first cell, selects a frequency different from the first frequency, and dynamically assigns the second frequency to the first cell, and wherein the control station further assign the first frequency to a third cell, wherein the third cell is not adjacent to a cell that uses the first frequency, and wherein the first cell is in a first system and a second cell that uses the first frequency is in a second system.