Method for formatting and conveying information in a wireless telecommunication system

• US 6,411,613 B1
• Filed: 08/12/1998
• Issued: 06/25/2002
• Est. Priority Date: 08/12/1998
• Status: Expired due to Term

• Current Assignee: RPX Corporation
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Seymour, James Paul, Tonello, Andrea M.
• Primary Examiner(s): VINCENT, DAVID ROBERT
• Application Number:
  US09/133,052
• Time in Patent Office: 1,413 Days
• Field of Search: 370/321, 370/329, 370/330, 370/336, 370/345, 370/347, 370/348, 370/349, 370/431, 370/436, 370/437, 370/442, 370/458, 370/468, 370/470, 370/498
• US Class Current: 370/347
• CPC Class Codes: H04B 7/2659 for data rate control

Abstract

A method for conveying information in a new format structure for a wireless communication system in which users convey information on a time slot basis. The new format structure is made compatible with the system'"'"'s existing format by partitioning system time slots into subslots.

Claims

1. A method for conveying information in a TDMA wireless telecommunication system in which users of the system transmit and receive information during assigned system time slots within a time frame in accordance with a system format, the method comprising the steps of:

partitioning each system time slot into a plurality of equal-length subslots;

creating subslot delimiter fields to indicate partitioning locations, the delimiter fields being independent of information fields in the subslots;

wherein contiguous subslots within a given slot accept assignment of, and maintain independent processing for user information of independent users.

2. The method of claim 1 wherein each subslot is specified in respect to a defined delimiter.

3. The method of claim 2 wherein each subslot is defined in respect to a sync field beginning the subslot.

4. The method of claim 2 wherein each subslot is defined in respect to a sync field beginning each slot and an algorithm determining subslots relative to the sync field.

5. The method of claim 1 wherein user assignments to subslots are arranged to permit interslot interleaving for IS-136 systems operating in Half Rate mode.

6. The method of claim 1 wherein each subslot contains data and signaling information for a single user.

7. The method of claim 6 wherein each subslot further contains a power control field.

8. The method of claim 1 wherein subslots are arranged to provide improved channel estimation.

9. A method for transmitting data from multiple users over a channel in a transmission medium, where information to be transmitted is packaged into fixed length frames, the method comprising the steps of:

organizing a frame into a plurality of slots according to a known methodology;

partitioning each slot into a plurality of equal-length subslots, each said subslot being specified in respect to a defined delimiter field, the delimiter fields being independent of information fields in the subslots;

wherein adjacent subslots of a given slot accept assignment of, and maintain independent processing for user information of independent users.

10. The method of claim 9 wherein each subslot is defined in respect to a sync field beginning the subslot.

11. The method of claim 9 wherein each subslot is defined in respect to a sync field beginning a slot and an algorithm determining subslots relative to the sync field.

12. The method of claim 9 wherein user assignments to subslots are arranged to permit interslot interleaving for IS-136 systems operating in Half Rate mode.

13. The method of claim 9 wherein each subslot contains data and signaling information for a single user.

14. The method of claim 13 wherein each subslot further contains a power control field.

15. The method of claim 9 wherein subslots are arranged to provide improved channel estimation.