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A method and base station for processing retransmission data

A technology for retransmitting data and base stations, which is applied in the field of communication, can solve problems such as poor efficiency, base station processor resource occupation, and base station paralysis, and achieve the effects of reducing product costs, improving processing capabilities, and utilizing hardware resources

Inactive Publication Date: 2016-08-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The current implementation uses software to cut PDUs and complete the package according to the scheduling resources of each TTI (TransmissionTimeInterval, transmission time interval). It is necessary to complete the data movement in the memory through CPU instructions. The operation of this instruction to complete the memory movement itself is very efficient. Bad, it is an indisputable fact, and it is also a behavior that system designers need to avoid when designing the system. When the retransmission operation is frequently operated, it will cause a heavy load on the CPU and the memory bus to complete these tasks. Such a The processing mode has the problem of low retransmission processing efficiency, and causes the processor resources of the base station to be continuously occupied by a small number of services, which affects the service processing of other users, and even causes the base station to be paralyzed

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  • A method and base station for processing retransmission data
  • A method and base station for processing retransmission data
  • A method and base station for processing retransmission data

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Embodiment Construction

[0044] In order to improve the retransmission processing efficiency in the AM mode, the present invention uses a hardware queue manager to reduce the implementation complexity of the flow in the processing process. Considering that in the case of supporting a very large number of services, and the implementation of the hardware queue manager needs to be completed inside the processor, the hardware resource occupation will be very large, so the present invention is mainly applied to PICO (miniature base station) and FEMTO (femtocell base station).

[0045] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0046] Such as figure 1 A...

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Abstract

Disclosed in the present invention is a method for processing re-transmission data, which comprises the following steps: in the process of initiation, the base station sets hardware re-transmission queues with different storage capacity according to service types; after receiving a status report for constructing re-transmission message, the base station applies for a first hardware re-transmission queue according to the indication of the status report, stores, in the first hardware re-transmission queue, the descriptor of the data required to be re-transmitted which is indicated by said status report, recombines and transmits, utilizing the hardware queue management mechanism, the re-transmission data specified by the first hardware re-transmission queue. The present invention also discloses a base station. The present invention can markedly reduce situations that the processor resource is occupied by minority service constantly.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for processing retransmission data and a base station. Background technique [0002] The RLC (RadioLinkControl, radio link control) protocol layer is a sublayer of layer 2 (L2) in the wireless interface protocol stack of the LTE (LongTermEvolution, long-term evolution) system, located on the MAC (MediaAccessControl, media access control) layer. Above, the RLC protocol layer provides segmentation and retransmission services for user and control data. The functions of the RLC protocol layer include: link control, encapsulation and reassembly, cascading, user data transmission, error correction, protocol error detection and repair, etc. Each RLC protocol entity is configured by RRC and operates in three modes: Transparent Mode (TM for short), Unacknowledged Mode (UM for short), and Acknowledged Mode (AM for short). [0003] In acknowledgment mode, the sending side adds the neces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18H04W28/14
CPCH04L1/1874
Inventor 张景煜
Owner ZTE CORP