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Use of idle frames for the control of negative frame acknowledgement

A technology of idle frames and data frames, applied in the field of communication systems, can solve problems such as prolonging the delay period

Inactive Publication Date: 2005-12-28
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some systems impose a specific delay period that can extend each communication

Method used

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  • Use of idle frames for the control of negative frame acknowledgement
  • Use of idle frames for the control of negative frame acknowledgement
  • Use of idle frames for the control of negative frame acknowledgement

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Embodiment Construction

[0019] The detailed description set forth below, in conjunction with the accompanying figures, is intended as a description of embodiments of the invention and is not intended to represent only those embodiments in which the invention is put into practice. The word "exemplary" is used herein to mean "for an example, situation or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

[0020] The 3rd Generation Partnership Project 2 (3GPP2) has adopted an evolution of the existing cdma2000 standard known as 1x Evolution for Data and Voice (1xEV-DV), which is designed to provide wireless An air interface for packet data applications of the Internet. The 1xEV-DV forward link includes a pilot channel, a packet data control channel (PDCCH), a forward traffic channel, and a control channel. The traffic channel carries user data packets. The control channel carries control messages and c...

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PUM

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Abstract

A set of data frames from multiple communication channels is received. Then, at least one idle frame including the sequence number of the last frame in the set of data frames is received. If at least one data frame is missing, a delay time period is allowed after receipt of an idle frame before sending a negative acknowledgment message.

Description

technical field [0001] The present invention relates generally to communication systems, and more particularly to negative acknowledgment of frame receipt in such systems. Background technique [0002] Data services for third generation (3G) systems, including both Code Division Multiple Access 2000 (cdma2000) and Wideband Code Division Multiple Access (WCDMA), are designed around a physical layer architecture that optimizes voice transmission. Although 3G systems are designed to handle both services, voice services in particular are characterized by symmetrical traffic loads (between forward and reverse links) and guaranteed quality of service (such as latency, delay, etc.) parameters). But packet data services are characterized by potentially asymmetric traffic loads, which include short messages (eg data requests) with low bandwidth requirements and very long messages (eg data downloads) with high bandwidth requirements. There are some types of bursty data traffic, but ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/707H04J13/00H04L1/16H04L1/18
CPCH04L1/1642H04L1/1848H04L1/18H04L1/00H04L12/403
Inventor A·门莱S·Y·D·霍Y·魏
Owner QUALCOMM INC
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