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Method and device for retransmitting data and processing retransmitted data

A data retransmission and data transmission technology, applied in the field of mobile communication, can solve the problems of data accumulation, user perception affecting download rate and delay, data retransmission, etc., to achieve the effect of guaranteeing delay and download rate

Active Publication Date: 2013-03-27
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although there is a flow control mechanism for data transmission between Iub ports, some data will still accumulate in the base station cache due to the data transmission between two network elements.
At this time, if there is specific data to be transmitted, the base station needs to transmit the data previously accumulated in the base station cache according to the first-in-first-out mechanism before transmitting the specific data, which will result in TCP (Transmission Control Protocol, Transmission Control Protocol) layer data retransmission, affecting user perceptions such as download rate and delay

Method used

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  • Method and device for retransmitting data and processing retransmitted data
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  • Method and device for retransmitting data and processing retransmitted data

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Embodiment Construction

[0033] The embodiment of the present invention provides a method and device for data retransmission and retransmission data processing, which is used to preferentially transmit such data after the MAC layer receives RLC retransmission data and status PDU and other data that affect user perception, so as to avoid adversely affect user perception.

[0034] see figure 2 A data retransmission method provided by an embodiment of the present invention includes:

[0035] S201, the radio network controller RNC establishes a backup queue for the priority queue of each media access control layer MAC data flow;

[0036] S202. When it is determined that there is specific data to be sent, add the specific data to the backup queue; wherein the specific data includes: radio link control RLC retransmission data or status packet data unit PDU;

[0037] S203. When the RNC determines that there is data in the backup queue, start data transmission in the backup queue.

[0038] Preferably, the...

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Abstract

An embodiment of the invention provides a method and device for retransmitting data and processing retransmitted data and aims at preferentially transmitting the data after a multi-access computer (MAC) layer receives radio link control (RLC) retransmitted data, state protocol data unit (PDU) data and other data influencing user perception and avoiding adverse effects on the user perception. The method comprises that a wireless network controller (RNC) builds back-up queues for a priority queue of each medium access control MAC data stream; adding specific data into the back-up queues when the specific data are conformed to be sent, wherein the specific data include the RLC retransmitted data or the state PDU data; and begin to perform data transmission of the back-up queues when RNC conforms that the data exist in the back-up queues.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a method and device for data retransmission and retransmission data processing. Background technique [0002] In TD-SCDMA (Time Division Synchronous Code Division Multiple Access, Time Division Synchronous Code Division Multiple Access), CDMA2000 (Code Division Multiple Access2000, Code Division Multiple Access 2000 access system), WCDMA (Wideband CDMA, broadband CDMA) and other communications In the system, the MAC (Media Access Control, Media Access Control) layer data of the HS-DSCH (High Speed ​​Downlink Shared CHannel) transmission channel is transmitted by different MAC layer entities in different communication devices: RNC (Radio The MAC layer entity on the Network Controller (wireless network controller) side is MAC_D (Dedicated MAC, Dedicated Media Access Control), and the MAC layer entity of NodeB includes MAC_HS (High Speed ​​MAC, High Speed ​​Media Access C...

Claims

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Application Information

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IPC IPC(8): H04L1/16
Inventor 刘吉凤
Owner DATANG MOBILE COMM EQUIP CO LTD