Network side device and AM (amplitude modulation) service data buffer method of network side device

A business data and network-side technology, applied in network traffic/resource management, error prevention/detection using return channels, electrical components, etc., can solve problems such as reducing system processing efficiency, meet protocol requirements, improve system performance and The effect of memory utilization

Active Publication Date: 2012-11-21
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since both the PDCP layer and the RLC layer discard or release essentially the same data, in scenarios with heavy traffic

Method used

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  • Network side device and AM (amplitude modulation) service data buffer method of network side device
  • Network side device and AM (amplitude modulation) service data buffer method of network side device
  • Network side device and AM (amplitude modulation) service data buffer method of network side device

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Experimental program
Comparison scheme
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Embodiment

[0046] 1) For the base station, the location information measurement reporting conditions are configured for the UE at the RRC layer. According to the configuration information, the UE will send a notification message to At the PDCP layer, the PDCP entity saves the notification message.

[0047] Of course, when the UE measures that it enters the center of the cell from the edge of the cell, the RRC layer will also send a notification message to the PDCP layer, so that the PDCP layer can determine whether the UE is in the center of the cell or the edge of the cell.

[0048] 2) The MAC layer reports the channel quality to the PDCP layer

[0049] The channel quality of UE includes uplink channel quality and downlink channel quality, specifically:

[0050] a) The MAC layer notifies the PDCP layer of the CQI (Channel Quality Indicator, Channel Quality Indicator) index reported by the UE that reflects the quality of the downlink channel

[0051] The UE notifies the MAC layer of th...

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PUM

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Abstract

The invention discloses a network side device and an AM (amplitude modulation) service data buffer method of the network side device. The method comprises the following steps that when a PDCP (packet data convergence protocol) layer receives AM service data packets, and the current buffer queue does not reach the full data memory, the data packets are buffered to the vacant position of the buffer queue, and otherwise, the data packets are buffered to the position of the stored data packets in the buffer queue according to the preset mechanism, wherein the PDCP layer regularly regulates the buffer queue length according to the UE (user equipment) signal channel quality, the position information and the AM down service flow; the PDCP layer releases the data packets successfully sent to UE in the buffer queue according to the notification of a RLC (radio link control) layer; and the PDCP layer releases the overtime data packets according to the buffer duration in the data packets. The device and the method disclosed by the invention have the advantages that on the premise of not influencing the system performance, the unmeaning memory is avoided as much as possible, and the memory utilization rate and the system efficiency are improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a network side device and a method for buffering AM service data. Background technique [0002] The LTE (Long Term Evolution, Long Term Evolution) protocol stipulates that when the PDCP (Packet Data Convergence Protocol, Packet Data Concentration Protocol) layer entity is re-established, the PDCP layer needs to "start from the first PDCP SDU (Service Data Unit , business data unit), start to resend the PDCP SDUs of the associated PDCP SN in ascending order of the count CONUT value", and the protocol specifies the time length of the discard timer to decide when to discard the SDUs that have not been successfully sent PDCP SDUs. [0003] In order to achieve the protocol requirements, the base station must have the following requirements: [0004] 1) The PDCP layer opens a cache buffer to store PDCP SDUs that have not been confirmed by the bottom layer and h...

Claims

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Application Information

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IPC IPC(8): H04W28/04H04W28/14H04L1/16
Inventor 高凯周宇恒
Owner DATANG MOBILE COMM EQUIP CO LTD
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