Method for parallel processing of uplink and downlink in rlc AM mode in LTE

A technology of parallel processing and AM mode, which is applied in the direction of using the return channel for error prevention/detection, signaling distribution, digital transmission system, etc., and can solve problems that have not yet been solved, so as to avoid low processing efficiency, improve concurrency efficiency, The effect of guaranteed processing performance

Active Publication Date: 2017-10-24
WUHAN HONGXIN TELECOMM TECH CO LTD
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Problems solved by technology

Therefore, it is necessary to realize the sharing of the RLC PDU receiving queue, and ensure that the sending module can send the data strictly according to the timing specified in the scheduling cycle, and will not bring additional burden due to the reading and writing of shared information, but there is no related solution in the prior art Program

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  • Method for parallel processing of uplink and downlink in rlc AM mode in LTE
  • Method for parallel processing of uplink and downlink in rlc AM mode in LTE
  • Method for parallel processing of uplink and downlink in rlc AM mode in LTE

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Embodiment Construction

[0043] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0044] The present invention aims at the problems of the prior art, and in combination with the architectural requirements of the data link layer of the LTE system, designs a scheme to realize data transmission in the RLC AM mode, which improves the concurrent performance of the AM downlink sending module and the uplink receiving module, and improves Processing performance of RLC AM mode. The basic design idea is: stagger the access time of the critical resource RLC AMD PDU queue that the uplink and downlink modules jointly access, minimize the granularity of the lock, and improve execution efficiency.

[0045] The specific implementation of the embodiment is as follows:

[0046] Define parameters in advance:

[0047] In the AM downlink sending module, define the variables VT(S), VT(A) and VT(MS): where VT(S) is the SN(Sequ...

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Abstract

The invention discloses an ascending and descending parallel processing method under an RLC AM (radio link control acknowledged mode) in LTE (long-term evolution). An AMD PDU (AM data protocol data unit) is resequenced in an ascending receiving module, and the PDU is recombined into an RLC SDU (signal distribution unit) and is transmitted to a higher level; the recombined RLC PDU and a control structure relevant to the PDU are not deleted at first; when the RLC AM ascending module is awakened at the next time, the relevant RLC PDU and the control structure are deleted; when a state of a descending sending module is reported, only the control structure relevant to the PDU of VR (R)<=SN<VR (MS) is accessed. Therefore, the access time for a PDU receiving queue under a critical resource AM mode can be staggered, the particle size of a lock is reduced to the maximum extent, and the execution efficiency is improved.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method for transmitting AM mode data of an RLC (Radio Link Control) layer in an LTE mobile communication system (including TDD-LTE and FDD-LTE). Background technique [0002] The radio access network protocol of LTE is divided into three layers, the physical layer (L1), the data link layer (L2) and the radio resource control layer (L3). L2 is further divided into medium access control layer (MAC, Medium Access Control), radio link control layer (RLC, Radio Link Control), packet data convergence protocol layer (PDCP, Packet Data Convergence Protocol). The existing RLC sublayer belongs to the L2 protocol of the user plane and is located between the PDCP layer and the MAC layer. [0003] The RLC layer is mainly responsible for radio link control of the radio access network, and provides transmission services for user plane data and control plane data. The RL...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/18
CPCH04L1/1607H04L1/1861H04L5/0055
Inventor 王方张利达徐海鑫
Owner WUHAN HONGXIN TELECOMM TECH CO LTD
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