Method and apparatus for time-based reception of transmissions in a wireless communication system

• US 6,807,428 B2
• Filed: 03/06/2002
• Issued: 10/19/2004
• Est. Priority Date: 08/16/2001
• Status: Expired due to Term

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Casaccia, Lorenzo
• Primary Examiner(s): Maung, Nay
• Assistant Examiner(s): Gantt, Alan T.
• Application Number:
  US10/092,644
• Publication Number:
  US 20030036400A1
• Time in Patent Office: 958 Days
• Field of Search: 455/515, 455/84, 455/82, 340/10.6, 370/394
• US Class Current: 455/515
• CPC Class Codes: H04L 1/0007 by modifying the frame length
• CPC Class Codes: H04L 1/1657 Implicit acknowledgement of correct or incorrect reception, e.g. with a moving window
• CPC Class Codes: H04L 1/1685 the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal
• CPC Class Codes: H04L 1/1848 Time-out mechanisms
• CPC Class Codes: H04L 1/188 Time-out mechanisms

Abstract

Method for segmented message transmission wherein each message is first divided into segments and the segments are fragmented. A segment parameter is applied to each segment, and a segment identifier to each fragment. The fragments are provided to a lower level for preparation into frames for transmission. One embodiment is applied to the transmission of short duration messages, such as control messages. On receipt of a frame within a segment, a timer is initiated having an expiration period. Receipt of a next frame in the segment stops the timer. Expiration of the expiration period for a timer indicates that a next sequential frame is lost.

Claims

1. In a wireless communication system having a base station controller and a plurality of base stations, each of the plurality of base stations adapted for communication with a plurality of mobile stations, a method comprising:

receiving a first frame in a plurality of transmission frames, each of the plurality of transmission frames having an identifier;

initiating a first timer set to a first expiration period, wherein the first expiration period is determined by an average inter-arrival time period between transmitted frames, and

if a second frame is not received prior to the expiration of the first expiration period, determining the identification and expected arrival time of a next frame,

if a second frame is received prior to the expiration of the first expiration period, terminating the first timer, and

initiating a second timer set to a second expiration period on receipt of the second frame.

2. In a wireless communication system having a base station controller and a plurality of base stations, each of the plurality of base stations adapted for communication with a plurality of mobile stations, a method comprising:

receiving a first frame in a plurality of transmission frames, each of the plurality of transmission frames having an identifier;

initiating a first timer set to a first expiration period, wherein the first expiration period is given as;

First expiration period=α

*AIT, and

if a second frame is not received prior to the expiration of the first expiration period, determining the identification and expected arrival time of a next frame,

if a second frame is received prior to the expiration of the first timer expiration period, terminating the first timer, and

initiating a second timer set to a second expiration period on receipt of the second frame.

3. In a wireless communication system having a base station controller and a plurality of base stations, each of the plurality of base stations adapted for communication with a plurality of mobile stations, a method comprising:

receiving a first frame in a plurality of transmission frames, each of the plurality of transmission frames having an identifier;

initiating a first timer set to a first expiration period, wherein the first expiration period is determined by an average inter-arrival time period between transmitted frames, and

if a second frame is not received prior to the expiration of the first expiration period, determining the identification and expected arrival time of a next frame,

if a second frame is received prior to the expiration of the first expiration period, terminating the first timer, and

initiating a second timer set to a second expiration period, wherein the second expiration period is given as a function of the first expiration period, on receipt of the second frame.

4. A wireless apparatus, comprising:

receiver for receiving a plurality of transmission frames;

means for detecting a frame;

timer means responsive to initiate a first timer on receipt of a first frame, the first timer having a first value and an associated expiration period, the timer means responsive to terminate the first timer on detection of a second frame, the timer means identifying an expected time of a next frame, wherein expiration of the first expiration period by the first timer indicates the second frame is a lost frame.

5. A wireless apparatus, comprising:

receiver for receiving a plurality of transmission frames;

means for detecting a frame;

timer means responsive to initiate a first timer on receipt of a first frame, the first timer having a first value and an associated expiration period, the timer means responsive to terminate the first timer on detection of a second frame, the timer means identifying an expected time of a next frame, wherein the timer means is operative to initiate a second timer in response to receipt of the second frame, the second timer having a second expiration period.

6. A wireless apparatus, comprising:

receiver for receiving a plurality of transmission frames;

means for detecting a frame;

timer means responsive to initiate a first timer on receipt of a first frame, the first timer having a first value and an associated expiration period, the timer means responsive to terminate the first timer on detection of a second frame, the timer means identifying an expected time of a next frame, wherein the timer means is operative to initiate a second timer in response to receipt of the second frame, the second timer having a second expiration period, wherein the second expiration period is a function of the first expiration period.