Stall avoidance schemes using HARQ process receiving status

• US 7,484,000 B2
• Filed: 01/31/2003
• Issued: 01/27/2009
• Est. Priority Date: 02/01/2002
• Status: Active Grant

• Current Assignee: Innovative Sonic Limited
• Original Assignee: Innovative Sonic Limited
• Inventors: Jiang, Sam Shiaw-Shiang
• Primary Examiner(s): Follansbee; John
• Assistant Examiner(s): Madamba; Glenford
• Application Number:
  US10/355,481
• Publication Number:
  US 20030147348A1
• Time in Patent Office: 2,188 Days
• Field of Search: 370/229, 370/412
• US Class Current: 709/240
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1841 Resequencing
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 2001/0096 Channel splitting in point-to-point links
• CPC Class Codes: H04L 2001/125 Arrangements for preventing errors in the return channel
• CPC Class Codes: H04W 28/14 using intermediate storage
• CPC Class Codes: H04W 84/04 Large scale networks; Deep hierarchical networks

Abstract

This invention employs a quicker reordering buffer gap removing and buffered data block delivery method. The invention uses several parameters to support its operation. One of the pertinent parameters is a New Data Indicator, another is an array variable, TTI-States, to track at least n consecutive data block receiving statues of TTIs of the n active HARQ processes of the HARQ entity at the receiver side.

Claims

1. A method to avoid stall of data blocks in-sequence delivery of reordering buffers at a receiver in a high speed wireless communication system, the method comprising:

at a transmitter;

using hybrid automatic repeat request (HARQ);

assigning a Transmission Sequence Number (TSN) to each sending data block sequentially and supporting transmission priority handling by allowing different data priority classes in a transport channel; and

delaying the interruption from any higher transmission priority data blocks until a currently transmitted lower transmission priority data block is positively acknowledged.