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Method for transmitting data on downward link

A data transmission and downlink technology, applied in the transmission system, data exchange network, digital transmission system, etc., can solve the problems of poor downlink transmission quality, lower user satisfaction, UE call drop, etc., to reduce waiting to be scheduled The effect of increasing the downlink data transmission rate and avoiding UE call drop

Active Publication Date: 2008-11-12
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the status report information is carried in the control PDU, when the UE fails to receive the control PDU for a long time, it will actively disconnect from the network side, which will cause the UE to drop the call
At the same time, since the retransmission data PDU is not sent out in the queue, the retransmission data PDU will always occupy the sending resources of the RLC entity, so if the retransmission data PDU waits in the queue for a long time, it will make the RLC entity The sending window cannot slide forward for a long time, which greatly affects the downlink data transmission rate
[0018] It can be seen that if any one of the control PDU or the retransmission data PDU cannot be sent out in time, the downlink transmission quality will deteriorate, thereby reducing user satisfaction.

Method used

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  • Method for transmitting data on downward link
  • Method for transmitting data on downward link
  • Method for transmitting data on downward link

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0065] In this embodiment, the existing MAC-DATA request primitive of the protocol is used as the sending request primitive, and the scheduling priorities of the control PDU and the retransmission data PDU are set to be unequal as an example to illustrate the present invention specific implementation process.

[0066] figure 2 It is a flow chart of downlink data being carried on the HS-DSCH in the WCDMA system in Embodiment 1 of the present invention and using an acknowledgment mode to transmit the downlink data. see figure 2 , in the present invention, on the HS-DSCH of WCDMA system, the process of adopting confirmation mode to transmit data specifically comprises the following steps:

[0067] Step 201: Preset the scheduling priority from high to low of the control PDU, the retransmitted data PDU and the newly transmitted data PDU.

[0068] The specific setting process of this step includes:

[0069] Firstly, according to the existing method for determining the downlink...

Embodiment 2

[0093] In this embodiment, the existing MAC-DATA request primitive of the protocol is used as the sending request primitive, and the scheduling priority of the control PDU and the retransmission data PDU are set as an example to illustrate the present invention The specific implementation process.

[0094] image 3 It is a flowchart of downlink data being carried on the HS-DSCH in the WCDMA system in Embodiment 2 of the present invention and the downlink data is transmitted in an acknowledgment mode. see image 3 , in the present invention, on the HS-DSCH of WCDMA system, the process of adopting confirmation mode to transmit data specifically comprises the following steps:

[0095] Step 301: Preset the scheduling priority of the retransmitted data PDU and the control PDU to be equal and higher than the scheduling priority of the newly transmitted data PDU.

[0096] The specific setting process of this step includes:

[0097] Firstly, according to an existing method for det...

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Abstract

The method includes steps: when sending control protocol data unit (PDU), retransmission data PDU and new transmission data PDU to MAC-d entity, radio link control entity labels their type information; based on the said type information, after using retransmission data PDU and control PDU to generate data frame in higher dispatching priority, using new transmission data PDU to generate data frame in lower dispatching priority, MAC-d entity sends these data frames to MAC-hs entity; MAC-hs entity distributes received retransmission data PDU and control PDU in data frame in higher dispatching priority to corresponding queue in higher dispatching priority, and distributes received new transmission data PDU to corresponding queue in lower dispatching priority. Advantages are: shortening time of control PDU and retransmission data PDU for waiting in queue, avoiding terminal call loss, and increasing down going data transmission speed greatly.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a method for transmitting data on the downlink when the Wideband Code Division Multiple Access (WCDMA) system adopts the High Speed ​​Downlink Packet Access (HSDPA) technology. Background technique [0002] HSDPA technology is a technology for high-speed data transmission on the downlink of a WCDMA system. HSDPA technology adopts hybrid automatic retransmission technology, adaptive modulation and coding technology and downlink 2ms short frame technology, and can achieve air interface peak rate up to 13.976Mbps. Therefore, it can greatly improve the throughput rate of downlink user data and improve the downlink capacity of WCDMA system. [0003] When using the HSDPA technology, the downlink data in the WCDMA system can be carried on the high-speed downlink shared channel (HS-DSCH) and transmitted to the mobile terminal. figure 1 It is a flow chart of the prior art in which downl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/38H04L1/18H04L12/56H04B7/26H04W72/04H04W72/12
Inventor 郭房富吴玉忠
Owner XFUSION DIGITAL TECH CO LTD
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