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Transmission of data packets in a radiocommunication system using a common hybrid automatic repeat request (HARQ) process

A wireless communication system, data packet technology, applied in wireless communication, communication between multiple stations, error prevention/detection using return channels, etc., to achieve the effect of reducing memory

Inactive Publication Date: 2010-04-14
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this disadvantageously leads to the fact that the capacity of the memory required for the HARQ process is multiplied by the number of different services, and therefore a large and expensive memory or a plurality of memories must be provided

Method used

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  • Transmission of data packets in a radiocommunication system using a common hybrid automatic repeat request (HARQ) process
  • Transmission of data packets in a radiocommunication system using a common hybrid automatic repeat request (HARQ) process
  • Transmission of data packets in a radiocommunication system using a common hybrid automatic repeat request (HARQ) process

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Experimental program
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Embodiment Construction

[0015] exist figure 1 An exemplary radio communication system is described which has a plurality of switching devices MSC connected to one another. Usually at least one switching center MSC accesses another communication system, for example a fixed network communication system. The base station NB (Node B) is connected to the switching center MSC as a transmitter / receiver of the radio communication system. The base station NB is connected via a communication link to a terminal, in particular a user terminal UE (User Equipment), which may be a mobile or stationary terminal.

[0016] in this in figure 1 There may be an uplink UL (Uplink) from the user terminal equipment UE to the base station NB and / or a downlink DL (Downlink) from the base station NB to the user terminal equipment UE between the base station NB and the user terminal equipment UE shown in ) One-way or two-way communication connection.

[0017] figure 2 The functionality and equipment of the transmitting ra...

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Abstract

According to the invention, data packets of a data flow (1;2) are identified for transmission in a radiocommunication system with a data flow and / or individual service indicator (ID) enabling them to be allocated to the corresponding data flow (1;2) for reception.A sequence number (SN) for the data packets in each data flow (1;2) is added upon transmission to the data packet in order to reestablish the original order of the data packets of a data flow (1,2); the advantage thereof being that the data flows (1,2) of several services can use a common HARQ process, whereupon the memory used for reception according to said HARQ process can be reduced.

Description

[0001] This application is a divisional application of the following international invention patent application filed on August 19, 2002, international application number: PCT / EP02 / 09263, national application number: 02816492. Transmission of data packets in wireless communication systems with automatic request for retransmission procedure" technical field [0002] The invention relates to a method and a radio station for transmitting data packets in a radio communication system, in particular in a mobile radio communication system. Background technique [0003] In radio communication systems information (for example voice, image information and other data) is transmitted by means of electromagnetic waves via a radio interface between transmitting and receiving radio stations (base station and mobile station). For this purpose, electromagnetic waves are emitted with a carrier frequency within the frequency band specified for the respective system. For future mobile radio sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04W28/04H04W28/06H04L1/16H04B7/26H04L1/00H04L12/56H04L12/70
CPCH04L1/1874H04L1/188H04L1/1841H04W8/26H04W28/04H04W72/1205H04L1/1812H04W72/12H04L1/18H04L2012/5603
Inventor F·拉吉J·施尼登哈恩A·梅林格
Owner SIEMENS AG