Method and apparatus for maximizing standby time in remote stations configured to receive broadcast databurst messages

• US 20040091022A1
• Filed: 11/05/2003
• Published: 05/13/2004
• Est. Priority Date: 02/11/2000
• Status: Active Grant

• Current Assignee: Edward G. Tiedemann Jr, Sandip Sarkar, Wang Jun
• Original Assignee: Edward G. Tiedemann Jr, Sandip Sarkar, Wang Jun
• Inventors: Tiedemann, Edward G. Jr., Wang, Jun, Sarkar, Sandip
• Granted Patent: US 6,977,957 B2
• Time in Patent Office: Days
• US Class Current: 375/147
• CPC Class Codes: H04B 1/707 using direct sequence modulation
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: H04W 68/025 Indirect paging
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A wireless telecommunications system includes a base station, a plurality of remote stations, a first channel for general page messages containing paging information and broadcast databurst message references, and an auxiliary channel for broadcast databurst notification indicators for the purpose of increasing standby time in remote stations configured to receive broadcast databurst messages.

Claims

1. A telecommunications receiver, comprising:

means for associating categories with bit indices of a broadcast indicator bit stream;

means for waking up on a periodic basis to receive one or more bits in the broadcast indicator bit stream located at said bit indices;

means for receiving said one or more bits;

means for comparing each of said one or more bits to an on or off value; and

means for determining from said comparison whether or not to subsequently receive and decode an encoded bit stream that follows said broadcast indicator bit stream by a pre-determined time interval.

2. The receiver of claim 1, wherein the means for associating categories comprises means for hashing desirable categories of broadcast messages via a pre-determined hashing function to determine said bit indices.

3. The receiver of claim 1, wherein the means for receiving said one or more bits comprises means for demodulating an uncoded, on-off keying modulated direct sequence spread spectrum signal.

4. The receiver of claim 1, further comprising means for receiving one or more incoming page indicator bits on a same channel as that on which said one or more bits are received after receiving said one or more bits.

5. The receiver of claim 4, wherein the means for receiving said one or more bits comprises means for demodulating a first signal on a modified quick paging channel.

6. The receiver of claim 5, wherein the means for receiving one or more incoming page indicator bits comprises means for demodulating a second signal on said modified quick paging channel after demodulating said first signal.

7. The receiver of claim 4, wherein the means for receiving said one or more bits comprises means for receiving said one or more bits and said one or more incoming page indicator bits in an overlaid fashion on a modified quick paging channel.

8. The receiver of claim 1, wherein the means for receiving said one or more bits comprises means for demodulating a first signal on an auxiliary channel that is orthogonal to a quick paging channel.

9. The receiver of claim 8, further comprising means for receiving one or more incoming page indicator bits on the quick paging channel, wherein the means for receiving one or more incoming page indicator bits comprises means for demodulating a second signal on said quick paging channel.