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Transmission of data packets in a wireless communication network

A data grouping and network technology, applied in the field of access points, can solve problems such as conflict confirmation

Inactive Publication Date: 2009-07-22
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the second Radio Access Point RAP 2 forwards the negative acknowledgment to the first Radio Access Point RAP 1 and this negative acknowledgment arrives at the point to the MUP buffer in RAP 1, thereby potentially causing contradictory acknowledgments

Method used

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  • Transmission of data packets in a wireless communication network
  • Transmission of data packets in a wireless communication network
  • Transmission of data packets in a wireless communication network

Examples

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Embodiment Construction

[0052] figure 2 A network is shown in which a mobile terminal is connected to a UMTS Node B and an IEEE 802.11g access point. The radio access point RAP 1 is a UMTS Node B and the radio access points RAP 2, RAP 3 and RAP 4 are W-LAN access points implementing different variants of the IEEE 802.11 standard. The cooperation of UMTS and IEEE 802.11 is exemplarily depicted, however, other radio access technologies may be considered.

[0053] The present invention is not limited to these kinds of networks, it can be applied to various heterogeneous networks. Such a heterogeneous network may include different network technologies such as IEEE 802.11 and UMTS, CDMA 2000, Bluetooth, GSM, satellite communication standards, and the like.

[0054] It is also possible to imagine a scenario where all access points support the same access technology, eg a network of IEEE802.11g access points. It can also be extended to noninfrastructure-based networks, such as ad hoc or mesh networks. ...

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Abstract

The invention relates to a method for retransmitting data packets in a network. Further, the invention relates to an adapted system for performing the method. To improve the robustness in the transmission of an acknowledgment message by a mobile terminal to the network, while minimizing a signaling overhead, the invention provides mechanisms that optimize the retransmission of data packets and manage acknowledgement messages. The mechanisms disclosed are particular applicable to heterogeneous radio access networks.

Description

technical field [0001] The invention relates to a method for transmitting data packets in a network to a mobile terminal and an access point adapted for carrying out the method. Background technique [0002] In recent years, various widely dispersed wireless communication networks have been developed. These networks use different access technologies and range from wireless personal area networks to globally available satellite-based networks. Between the above extremes, there are a wide variety of different networks and network technologies available that provide local, regional or country-wide coverage, such as Bluetooth, wireless LAN using the IEEE 802.11 standard, or cellular such as GSM or UMTS Communications network. [0003] As the user moves, different network access technologies are available for the user terminal. Small areas with the size of a typical building are often covered by a network using Bluetooth, DECT or Wireless LAN (W-LAN) technology. In a private ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
CPCH04L2001/0092H04W48/08H04W92/20H04L1/1854H04L2001/125H04W48/20H04W28/04
Inventor 康斯坦蒂诺斯·迪莫
Owner PANASONIC CORP
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