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Method, device and system for cascading and disassembling processing of data blocks

A processing method and data block technology, applied in the field of communication, can solve the problems of restricting the performance of LTE-A system and increasing the complexity of real-time processing of RLC layer, etc.

Active Publication Date: 2011-12-28
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] 3. Existing L2 routine data processing flow
[0014] To sum up, when the amount of data is large, the RLC layer needs to perform cascading processing on more data blocks, which increases the real-time processing complexity of the RLC layer and becomes a bottleneck restricting the performance of the LTE-A system

Method used

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  • Method, device and system for cascading and disassembling processing of data blocks
  • Method, device and system for cascading and disassembling processing of data blocks
  • Method, device and system for cascading and disassembling processing of data blocks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The PDCP layer first encrypts the PDCP SDU and adds a header structure to generate a PDCP PDU, and then concatenates N PDCP PDUs to form a PDCP PDU group.

[0057] At this time, if Figure 5 As shown, in step S401, the PDCP layer performs pre-concatenation processing on the data blocks after receiving the data blocks, and sends the pre-concatenation processed data block groups to the RLC layer, which can be specifically:

[0058] Step S4011, the PDCP layer performs PDCP layer processing on the PDCP SDU to generate a PDCP PDU;

[0059] Step S4012, concatenating N PDCP PDUs to generate a PDCP PDU group;

[0060] Step S4013, sending the PDCP PDU group to the RLC layer.

[0061] After receiving the PDCP PDU group, the RLC layer can further concatenate multiple PDCP PDU groups into an RLC PDU according to the MAC instruction.

[0062] Wherein, the value of N is an integer greater than or equal to 1, which is pre-configured by a high-level layer or an algorithm.

[0063] ...

Embodiment 2

[0084] The PDCP layer first concatenates N PDCP SDUs to form a PDCP SDU group, and then encrypts the PDCP SDU group and adds a header structure to form a pre-concatenated PDCP PDU.

[0085] At this time, if Figure 8 As shown, in step S401, the PDCP layer performs pre-concatenation processing on the data blocks after receiving the data blocks, and sends the pre-concatenation processed data block groups to the RLC layer, which can be specifically:

[0086] Step S4014, the PDCP layer concatenates N PDCP SDUs to generate a PDCP SDU group;

[0087] Step S4015, performing PDCP layer processing on the PDCP SDU group to generate a pre-concatenated PDCP PDU;

[0088] Step S4016, sending the pre-concatenated PDCP PDU to the RLC layer.

[0089] After receiving the PDCP PDU group, the RLC layer can further concatenate multiple pre-concatenated PDCP PDUs into an RLC PDU according to the MAC instruction.

[0090]Wherein, the value of N is an integer greater than or equal to 1, which is ...

Embodiment 1

[0110] Corresponding to Embodiment 1, the PDCP layer 1201 is specifically used for:

[0111] The PDCP layer performs PDCP layer processing on the PDCP SDU to generate a PDCP PDU;

[0112] Concatenate N PDCP PDUs to generate a PDCP PDU group;

[0113] Send the group of PDCP PDUs to the RLC layer.

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Abstract

The invention discloses a data block concatenation and splitting processing method, a data block concatenation and splitting processing device and a data block concatenation and splitting processing system. The method comprises that: after receiving data blocks, a packet data convergence protocol (PDCP) layer performs pre-concatenation processing on the data blocks, and transmits the pre-concatenated data blocks to a radio link control (RLC) layer, wherein the pre-concatenation processing specifically comprises concatenation over N data blocks, and N is an integer more than 1; and the RLC layer performs concatenation processing based on the data blocks. The PDCP layer performs the pre-concatenation processing on the data blocks, thereby effectively reducing the processing capacity of the RLC layer when a relatively greater volume of data is required to be transmitted by the system, and further reducing the processing complexity of the RLC layer.

Description

technical field [0001] The present invention relates to communication technology, in particular to a data block concatenation and disassembly processing method, device and system. Background technique [0002] In the Long Term Evolution-Advanced (LTE-A) system, its system goal requires supporting a peak rate of uplink 500Mbps (bit per second, bit per second) and downlink 1Gbps. Due to the significant increase in the peak rate, the introduction of Carrier Aggregation (Carrier Aggregation, CA) technology and downlink 8*8 / uplink 4*4 enhanced multiple-input multiple-output (Multiple-Input Multiple-Output, MIMO) technology. , the protocol structure of L2) and the processing capability of L2 put forward new requirements. The following is a brief analysis: [0003] 1. Modification of the L2 protocol architecture by CA features: [0004] Before the CA feature is introduced, the L2 architecture of the existing Long Term Evolution (LTE) system is as follows: Figure 1a and Figure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/06
Inventor 任斌邓猛
Owner DATANG MOBILE COMM EQUIP CO LTD
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