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Method, system and device for transmitting data

A technology for sending data and data packets, which is applied in the field of communication, and can solve problems such as increasing the data traffic of Iub interface and increasing the delay of data packet retransmission

Active Publication Date: 2009-09-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the method sends the retransmission data, the frequency point queue is changed, but it still cannot avoid sending the retransmission data packet from the RLC layer to the Mac-ehs of Node B, which increases the data flow of the Iub interface, and also Increased packet retransmission delay

Method used

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  • Method, system and device for transmitting data
  • Method, system and device for transmitting data
  • Method, system and device for transmitting data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024]Embodiment 1 takes the common dual queue as an example. When the downlink uses two carrier frequencies at the same time, if the two carrier frequencies are on different processing boards of the NodeB, there will be two completely independent MAC-ehs scheduling on the Node B side Queues and schedulers. At this time, data from the same service source needs to be distributed to different MAC-ehs scheduling queues for data transmission, and reorganized at the receiving end UE. Refer to Embodiment 1, which gives the situation in this case Detailed description.

Embodiment 2

[0025] Embodiment 2 takes the common single queue as an example. When the downlink uses two carrier frequencies at the same time, if the two carrier frequencies are on the same processing board of the NodeB, there is only one MAC-ehs scheduling on the Node B side Queues and a scheduler, see Example 2 for a detailed description of this case.

[0026] Example 1

[0027] see figure 2 , the embodiment of the present invention provides a method for sending data, taking the downlink using two carrier frequencies at the same time as an example, and the two carrier frequencies are on different processing boards of the Node B, correspondingly, there will be two A completely independent MAC-ehs queue and scheduler. At this time, it is necessary to distribute data from the same service source to different MAC-ehs queues for data transmission as an example. At this time, the method provided by the embodiment of the present invention The content is as follows:

[0028] Step 201, the RL...

Embodiment 3

[0074] see Figure 4 , an embodiment of the present invention provides a system for sending data, wherein the system includes: a base station and a radio network controller RNC, wherein,

[0075] The RNC sends a data packet to the base station;

[0076] The base station receives the data packet sent from the radio network controller RNC through its own receiving module, and then loads the received data packet to at least two carrier frequencies for transmission through the loading module, and at the same time, the storage module pre-sets the data packet in the base station itself respectively. In the preset cache, the data packets loaded on each carrier frequency are backed up and saved, wherein the saving module can save the data packets in the preset cache and simultaneously save the sequence number of the data packet and the correspondence between the carrier frequency carrying the data packet relation. At this time, the data packet is sent through the carrier frequency, ...

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Abstract

The invention discloses a method, a system and a device for transmitting data, which belong to the field of communication. The method comprises the following steps: loading data pockets transmitted by a radio network controller RNC to at least two carrier frequencies for transmitting and respectively carrying out backup save on the data pockets loaded on the carrier frequencies in a preset buffer by a base station; obtaining the transmitting status of the data pockets; and deleting the data pockets which are transmitted correctly and backup saved in the buffer according to the transmitting status, and loading the backup data pockets which are transmitted incorrectly and backup saved in the buffer to another carrier frequency for transmitting. The system comprises the radio network controller RNC and the base station. The preset buffer is arranged on the base station NodeB to carry out buffer and backup on the received data pockets, and the data pockets are directly acquired from the buffer of the base station when the data pockets need retransmitting so as to decrease the flow impact to the RNC and the NodeB caused by an Iub interface and avoid unnecessary retransmission of an RLC layer.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method, system and equipment for sending data. Background technique [0002] UMTS (Universal Mobile Telecommunications System, Universal Mobile Communications System) is a third-generation communication system that adopts WCDMA (Wideband Code Division Multiple Access CDMA, Wideband Code Division Multiple Access) air interface technology, and the UMTS system is usually called WCDMA Communication Systems. The UMTS system adopts a structure similar to that of the second generation communication mobile system, including RAN (Radio Access Network, radio access network) and CN (CoreNetwork, core network). see figure 1 , provides a schematic diagram of a UMTS system structure, specifically including: UE (User Equipment, terminal), RAN, CN, and external networks, such as PSTN (Public Switched Telephone Network, public switched telephone network), Internet; wherein, RAN includes Node...

Claims

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Application Information

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IPC IPC(8): H04W28/02H04L12/56
CPCH04L1/18H04W28/04
Inventor 马洁张屹张劲林
Owner HUAWEI TECH CO LTD
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