Channel sharing by diverse multiframes in a wireless communications network

• US 6,879,573 B1
• Filed: 09/15/2000
• Issued: 04/12/2005
• Est. Priority Date: 09/15/2000
• Status: Expired due to Term

• Current Assignee: WSOU Investments, LLC (WSOU Holdings, LLC)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Huo, David D.
• Primary Examiner(s): Nguyen, Chau
• Assistant Examiner(s): NG, CHRISTINE Y
• Application Number:
  US09/663,355
• Time in Patent Office: 1,670 Days
• Field of Search: 370/321, 370/336, 370/337, 370/345, 370/347, 370/370
• US Class Current: 370/337
• CPC Class Codes: H04B 7/2643 using time-division multiple access [TDMA] H04B7/2615, H04B7/2618 take precedence

Abstract

A wireless communication system and method provide air interface channels using diverse multiframe types on a single frequency carrier. Physical channels for a single frequency carrier are defined as time slots, a series of consecutive time slots define a frame, and a plurality of multiframe types are defined for the single frequency carrier as including different numbers of consecutive frames. By multiplexing a plurality of multiframe types onto a single frequency carrier, diverse channels types such as traffic channels, broadcast control channels, and common control channels can be accommodated on the same frequency carrier to enable efficient utilization of frequency resources. In one exemplary implementation, a first multiframe type is defined as having x consecutive frames, a second multiframe type is defined as having y consecutive frames, and a third multiframe type is defined as having z consecutive frames. Thus, the frame number for the first multiframe type is counted modulus x, the frame number for the second multiframe type is counted modulus y, and the frame number for the third multiframe type is counted modulus z. The first, second, and third multiframe types are further assigned to different time slots. For example, if a frame is defined as having three time slots, the first multiframe type may be assigned to the first time slot, the second multiframe type may be assigned to the second time slot, and the third multiframe type may be assigned to the third time slot.

Claims

1. A communication method, comprising:

transmitting a first information on a single frequency carrier in accordance with a first multiframe structure having x frames, x being an integer;

transmitting a second information on said same single frequency carrier in accordance with a second multiframe structure having y frames, y being an integer different than x;

arranging said first and second multiframe structures in time groups, each of said time groups having a plurality of timeslots; and

allocating a plurality of timeslots in each of said time groups to said first information and to said second information so that said first information and said second information are transmitted in time slots that are different from each other within each time group, and so that said first and second information are transmitted in different timeslots in each of said time groups.

2. The method of claim 1, wherein said first information includes broadcast control information.

3. The method of claim 1, wherein said first information includes common control information.

4. The method of claim 1, wherein said first information includes broadcast control information and said second information includes common control information.

5. The method of claim 1, wherein said first multiframe structure has 51 frames.

6. The method of claim 1, wherein said first multiframe structure has 52 frames.

7. The method of claim 5, wherein

said second multiframe structure has 52 frames,

said first information included broadcast control information, and

said second information includes common control information.

8. The method of claim 1, wherein a base station of a wireless communication network performs said step of transmitting a first information and said step of transmitting a second information.

9. The method of claim 1, wherein said allocating step prevents said step of transmitting said first information from interfering with said step of transmitting said second information within a same time group, and prevents transmission of any one of said first information and said second information in one time group from interfering with transmission of any one of said first information and said second information in each of the other time groups.

10. The method of claim 1, wherein said first and second multiframe structures are time-grouped according to an edge-compact type network.

11. A communication method, comprising:

transmitting a first information on a single frequency carrier in accordance with a first multiframe structure having x frames, x being an integer;

transmitting a second information on said same single frequency carrier in accordance with a second multiframe structure having y frames, y being an integer different than x;

transmitting a third information on said same single frequency carrier in accordance with a third multiframe structure having z frames, z being an integer different than x and y;

arranging said first, second and third multiframe structures in time groups, each of said time groups having a plurality of timeslots; and

allocating a plurality of timeslots in each of said time groups to said first information, said second information and said third information so that said first, second and third informations are transmitted in time slots different from each other within each time group.

12. A communication method, comprising:

transmitting a first information on a single frequency carrier in accordance with a first multiframe structure having x frames, x being an integer;

transmitting a second information on said same single frequency carrier in accordance with a second multiframe structure having y frames, y being an integer different than x, wherein a current frame number for said second multiframe structure is derived from parameters that represent a current frame number for said first multiframe structure;

arranging said first and second multiframe structures in time groups, each of said time groups having a plurality of timeslots; and

allocating a plurality of timeslots in each of said time groups to said first information and to said second information so that said first information and said second information are transmitted in time slots that are different from each other within each time group.

13. A communication system, comprising:

means for transmitting a first information on a single frequency carrier in accordance with a first multiframe structure having x frames, x being an integer;

means for transmitting a second information on said same single frequency carrier in accordance with a second multiframe structure having y frames, y being an integer different than x;

arranging means for arranging said first and second multiframe structures in time groups, each of said time groups having a plurality of timeslots; and

allocating means for allocating a plurality of said timeslots to said first information and for allocating a plurality of said timeslots to said second information, so that said first information and said second information are transmitted in time slots that are different from each other within each time group, and so that said first and second information are transmitted in different timeslots in each of said time groups.

14. The system of claim 13, wherein said first information includes broadcast control information.

15. The system of claim 13, wherein said first information includes common control information.

16. The system of claim 13, wherein

said first information includes broadcast control information, and

said second information includes common control information.

17. The system of claim 13, wherein said first multiframe structure has 51 frames.

18. The system of claim 13, wherein said first multiframe structure has 52 frames.

19. The system of claim 17, wherein

said second multiframe structure has 52 frames,

said first information includes broadcast control information, and

said second information includes common control information.

20. The system of claim 17, wherein

said means for transmitting a first information and said means for transmitting a second information are components of a base station of a wireless communication network.

21. The system of claim 13, wherein said allocating step prevents said step of transmitting said first information from interfering with said step of transmitting said second information within a same time group, and prevents transmission of any one of said first information and said second information in one time group from interfering with transmission of any one of said first information and said second information in each of the other time groups.

22. The system of claim 13, wherein said first and second multiframe structures are time-grouped according to an edge-compact type network.

23. A communication system, comprising:

means for transmitting a first information on a single frequency carrier in accordance with a first multiframe structure having x frames, x being an integer;

means for transmitting a second information on said same single frequency carrier in accordance with a second multiframe structure having y frames, y being an integer different than x;

means for transmitting a third information on said same single frequency carrier in accordance with a third multiframe structure having z frames, z being an integer different than x and y;

means for arranging said first, second and third multiframe structures in time groups, each of said time groups having a plurality of timeslots; and

means for allocating a plurality of timeslots in each of said time groups to said first information, said second information and said third information so that said first, second and third informations are transmitted in time slots that are different from each other within each time group.

24. A method for providing air interface channels in a communications network, comprising:

time multiplexing a plurality of different multiframe structures onto a single frequency carrier to accommodate different channel types defined by said plurality of different multiframe structures on the same single frequency carrier;

arranging said plurality of different multiframe structures in time groups, each of said time groups having a plurality of timeslots; and

allocating a plurality of timeslots in each of said time groups to said plurality of different multiframe structures so that said different multiframe structures are transmitted in timeslots that are different from each other within each time group,

wherein said time multiplexing includes time multiplexing a first multiframe structure of x consecutive frames, a second multiframe structure of y consecutive frames, and a third multiframe structure of z consecutive frames, x, y and z being different positive integers, with values of x, y and z selected to that a given frame number for the first, second and third multiframe structures simultaneously re-occurs every x^*y^*z frames.

25. The method of claim 24, wherein said different channel types include common control channels, broadcast control channels and traffic channels.

26. The method of claim 24, wherein said first multiframe structure of x consecutive frames is associated with one of common control channels, broadcast control channels and traffic channels.

27. The method of claim 24, wherein said second multiframe structure of y consecutive frames is associated with one of common control channels, broadcast control channels and traffic channels.

28. The method of claim 24, wherein said third multiframe structure of z consecutive frames is associated with one of common control channels, broadcast control channels and traffic channels.