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Method of and transmitting device for transmitting a data block

A transmission device and data block technology, applied in transmission systems, digital transmission systems, using return channels for error prevention/detection, etc., can solve incorrect confirmation of RLC transmission endpoints, incorrect RLC transmission endpoints, data block transmission delays, etc. question

Active Publication Date: 2010-12-08
NOKIA NETWORKS OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 1. The RLC transmit endpoint incorrectly believes that the block has been negatively acknowledged
[0010] 2. The RLC transmit endpoint incorrectly believes that the block has been positively acknowledged
The disadvantage of this method is that the delivery of some data blocks is delayed

Method used

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  • Method of and transmitting device for transmitting a data block
  • Method of and transmitting device for transmitting a data block
  • Method of and transmitting device for transmitting a data block

Examples

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Embodiment Construction

[0059] In the drawings, the same elements and elements having the same functions are referred to by the same reference symbols unless stated otherwise. Furthermore, in the following the transmitting device is referred to as transmitting network node and the receiving device as receiving network device. However, such provisions should not be construed as limiting the broad scope of the invention.

[0060] The invention has several different aspects:

[0061] 1. Storage of confirmed blocks:

[0062] Transfer means store blocks even after they have been confirmed, especially if this confirmation is by means of a PAN.

[0063] 2. PUAN / PDAN sent in response to an unexpected block:

[0064] Data blocks that are received but not expected due to falling in front of the receive window indicate a "false positive" and this (directly or indirectly) triggers PUAN / PDAN to be sent.

[0065] 3. PANs that cover unanticipated blocks are handled "carefully":

[0066] PANs that involve block...

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PUM

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Abstract

A method of transmitting a data block (DB4..DB6) of a type from a transmitting device (for example a transmitting network node) to a receiving device (for example a receiving network node), in particular during a temporary block flow, is disclosed. Furthermore, a transmitting device to perform the inventive method is disclosed. The transmitting device is capable of receiving at least two different types of positive / negative acknowledgements for data blocks of said type from said receiving device and the reaction of the transmitting device to the positive / negative acknowledgements depends on the type of the said received positive / negative acknowledgement.

Description

technical field [0001] The invention relates to a method of transferring a type of data block from a transmitting device to a receiving device, in particular during a temporary block stream. Furthermore, the invention relates to a transmitting device for transmitting a type of data block to a receiving device, in particular during a temporary block stream. Background technique [0002] Although the physical data connections of modern networks, such as electrical cables and fiber optic cables, are getting better and better, errors during data transmission are still impossible to avoid. For this reason, numerous possibilities for error detection and error correction have been developed, such as cyclic redundancy checks (CRC). However, the problem of bad data blocks still exists. [0003] As an example of such networks, Enhanced General Packet Radio Service (EGPRS) networks are presented below. However, the present invention is not limited to this type of network and a perso...

Claims

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Application Information

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IPC IPC(8): H04L1/16
CPCH04L1/1614H04L2001/125H04L1/1607H04L1/1664
Inventor D·P·霍尔H·威廉
Owner NOKIA NETWORKS OY
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