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Apparatus, and associated method, for facilitating retransmission of data packets in a packet radio communication system that utilizes a feedback acknowledgment scheme

A kind of equipment and retransmission technology, applied in the direction of wireless communication, radio/inductive link selection and arrangement, transmission system, etc., can solve the problem of air resource waste, achieve good communication control and improve communication effect

Inactive Publication Date: 2006-08-30
NOKIA TECH OY
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Multiple layers of feedback are double and a waste of air resources

Method used

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  • Apparatus, and associated method, for facilitating retransmission of data packets in a packet radio communication system that utilizes a feedback acknowledgment scheme
  • Apparatus, and associated method, for facilitating retransmission of data packets in a packet radio communication system that utilizes a feedback acknowledgment scheme
  • Apparatus, and associated method, for facilitating retransmission of data packets in a packet radio communication system that utilizes a feedback acknowledgment scheme

Examples

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Embodiment Construction

[0039] Referring initially to FIG. 1, there is shown a radio communication system 10 providing for frame formatted or other packet formatted data transfers. This communication system forms a multi-user communication system having a plurality of mobile stations represented by the mobile station. The data is transferred in accordance with the execution of communication services, including, for example, real-time VoIP (Voice over IP) communication services.

[0040] In this exemplary implementation, the radio communication system forms a cellular communication system generally operating in accordance with the operating protocols set forth in the CDMA2000 Operating Specification. However, the communication system may also represent other types of communication systems. While exemplary operation of embodiments of the invention will be described below in connection with a CDMA 2000 compliant communication system, in other implementations, embodiments of the invention are equally ap...

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PUM

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Abstract

Apparatus, and an associated method, for a frame-formatted radio communication system. Coordination is provided between MAC and RLP layers of a sending station through use of apparatus embodied at the MAC layer of the sending station. Also, apparatus is provided at a receiving station to reduce the generation of RLP layer NAK during segmented RLP frame retransmissions.

Description

technical field [0001] The present invention relates generally to radio communication systems, such as IS-2000 compliant cellular communication systems, that transmit frame formatted or other packet formatted data according to Hybrid ARQ (HARQ) or other acknowledgment feedback and retransmission schemes. In particular, the present invention relates to an apparatus and related method by means of which retransmission of packets is coordinated while implementing acknowledgment feedback and packet formatting schemes at multiple logical layers of the radio communication system. The invention also particularly relates to an apparatus and related method by which the generation of negative acknowledgment requests can be better controlled when retransmitting data frames at a data rate lower than the initial data transmission rate. Background technique [0002] Coordination between logical layers is provided to allow earlier retransmission of data frames when necessary. When an indic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/24H04LH04L1/00H04L1/16H04L1/18H04L12/56H04L29/06H04L29/08H04W28/04H04W80/02
CPCH04L1/0006H04L29/08027H04L1/1848H04L1/1607H04L1/1812H04L29/06H04W28/04H04W80/02H04L69/324H04L9/40H04L1/18
Inventor 郑文国许谅祈
Owner NOKIA TECH OY
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