Method of ensuring bandwidth availability for non-page traffic in a communications systems

• US 5,625,629 A
• Filed: 08/07/1995
• Issued: 04/29/1997
• Est. Priority Date: 08/07/1995
• Status: Expired due to Term

• Current Assignee: Hughes Electronics Corporation (AT&T, Inc.)
• Original Assignee: Hughes Electronics Corporation (AT&T, Inc.)
• Inventors: Wenk, Richard D.
• Primary Examiner(s): Hsu, Alpus H.
• Assistant Examiner(s): RAO, SEEMA SRINIVAS
• Application Number:
  US08/511,676
• Time in Patent Office: 631 Days
• Field of Search: 370/95.1, 370/95.3, 370/110.1, 370/82, 455/33.1, 455/33.2, 455/33.4, 455/38.3, 455/53.1, 455/54.1, 455/54.2, 455/56.1, 455/38.1, 455/68, 455/70, 455/88, 455/343, 455/38.2, 379/58, 379/59, 379/57, 379/60, 379/63, 340/311.1, 340/825.44
• US Class Current: 370/347
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 68/00 User notification, e.g. alerting and paging, for incoming communication, change of service or the like

Abstract

A method of ensuring bandwidth availability for non-page point-to-point traffic in a communications system employs the steps of assembling a Superframe within a base station, and transmitting the Superframe from the base station to a radio unit. The Superframe is divided into a plurality of slots. A broadcast control channel is defined as a first portion of the plurality, and a point-to-point control channel is defined as a second portion of the plurality. The broadcast control channel has a Non-PCH Subchannel slot information element specifying a number of Non-PCH Subchannel slots within the point-to-point control channel.

Claims

1. In a communications system, a method of ensuring bandwidth availability for non-page messages, the method comprising:

assembling a superframe within a base station, the superframe comprising a plurality of slots, the assembling including;

defining a broadcast control channel comprising a first portion of the plurality of slots, the broadcast control channel comprising a Non-PCH Subchannel slot information element,

defining a point-to-point control channel comprising a second portion of the plurality of slots, the point-to-point control channel slots comprising Non-PCH Subchannel slots, wherein the Non-PCH Subchannel slot information element specifying a number of the Non-PCH Subchannel slots to be reserved within the point-to-point control channel, and

reserving said specified Non-PCH Subchannel slots; and

transmitting the superframe from the base station to a radio unit.

2. The method of claim 1 further comprising:

receiving said superframe from said base station into said radio unit;

disassembling said superframe in said radio unit, the disassembling including;

reading said Non-PCH Subchannel slot information element from said first portion of said plurality of said slots,

selecting a page slot within said second portion of said plurality of slots for said radio unit, said selecting being in response to said Non-PCH Subchannel slot information element.

3. The method of claim 2 further comprising:

activating at least a portion of a receive channel within said radio unit during said page slot within said superframe and within a subsequent superframe following said superframe; and

deactivating the at least a portion of the receive channel during remaining slots within said superframe and within the subsequent superframe following said superframe.

4. The method of claim 3 further comprising:

determining within said superframe whether a page message intended for said radio unit is included within said page slot; and

determining within said subsequent superframe whether the page message intended for said radio unit is included within said page slot.

5. The method of claim 4 further comprising:

determining within said superframe whether a page continuation indication is made within said page slot by said base station; and

determining within said subsequent superframe whether the page continuation indication is made within said page slot by said base station.

6. The method of claim 5 further comprising:

activating said at least a portion of said receive channel within said radio unit during a subsequent slot following said page slot within said superframe in the event said page continuation indication is made within said page slot within said superframe by said base station, the subsequent slot being one of said number of Non-PCH Subchannel slots within said point-to-point control channel; and

activating said at least a portion of said receive channel within said radio unit during the subsequent slot following said page slot within said subsequent superframe in the event said page continuation indication is made within said page slot within said subsequent superframe by said base station, the subsequent slot being one of said number of Non-PCH Subchannel slots within said point-to-point control channel.

7. The method of claim 2 further comprising:

activating a processor within said radio unit during said page slot within said superframe and during said page slot within a subsequent superframe following said superframe; and

deactivating the processor during remaining slots within said superframe and during remaining slots within said subsequent superframe following said superframe.

8. The method of claim 7 further comprising:

determining within said superframe whether a page message intended for said radio unit is included within said page slot; and

determining within said subsequent superframe following said superframe whether the page message intended for said radio unit is included within said page slot.

9. The method of claim 8 further comprising:

determining within said superframe whether a page continuation indication is made within said page slot by said base station; and

determining within said subsequent superframe following said superframe whether the page continuation indication is made within said page slot by said base station.

10. The method of claim 9 further comprising:

activating said processor within said radio unit during a subsequent slot following said page slot within said superframe in the event said page continuation indication is made within said page slot within said superframe by said base station, the subsequent slot being one of said number of Non-PCH Subchannel slots within said point-to-point control channel; and

activating said processor within said radio unit during the subsequent slot following said page slot within said subsequent superframe following said superframe in the event said page continuation indication is made within said page slot within said subsequent superframe by said base station, the subsequent slot being one of said number of Non-PCH Subchannel slots within said point-to-point control channel.

11. The method of claim 2 further comprising:

receiving a first portion of a multi-slot page message within said page slot having been selected within said second portion;

receiving a second portion of the multi-slot page message within a subsequent slot within said number of Non-PCH Subchannel slots.

12. The method of claim 2 further comprising:

receiving a first portion of a multi-slot non-page message within a first slot that is within said second portion;

receiving a second portion of the multi-slot non-page message within a second slot that is within said number of Non-PCH Subchannel slots.

13. The method of claim 2 further comprising:

receiving a slot of a non-page message within a slot within said number of Non-PCH Subchannel slots.

14. The method of claim 13 further comprising:

receiving a subsequent slot of said non-page message within a subsequent slot within said number of Non-PCH Subchannel slots.