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A method and device for harq merging

A technology of address and related parameters, which is applied in the field of HARQ merging, can solve the problems of affecting HARQ performance, not supporting interference cancellation algorithm, and low data processing efficiency, so as to improve the probability of successful decoding, save storage space, and improve read and write efficiency Effect

Active Publication Date: 2017-12-29
ZTE CORP
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Even so, the existing technology still has the following technical problems: it does not support the latest interference cancellation algorithm, and users with high rates interfere greatly, which will affect the performance of HARQ merging; , the data processing efficiency is not high

Method used

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  • A method and device for harq merging
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  • A method and device for harq merging

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Embodiment Construction

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0037] Such as figure 2 As shown, it is a flow chart of the second embodiment of the present invention, which provides a HARQ combining method, specifically including,

[0038] Step S201, receiving related parameters of HARQ combination configured by the outside world;

[0039] As an example, the parameters of the HARQ combination configured by the outside world include: whether the current user is a new package, which is recorded as new_ue; the current state is the number of solutions of the same user, which is recorded as e_demodnum. After the same ...

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Abstract

The present invention relates to the field of communication, and provides a method for HARQ combination, including receiving related parameters of HARQ combination configured by the outside world, and calculating the ddr2switch identifier of DDR2 switching, and obtaining addresses before and after HARQ combination; according to the related parameters and HARQ combination The addresses before and after determine whether HARQ merging is needed, and if necessary, read the data in DDR2, and store the data in the first data cache RAMA; perform HARQ merging calculations, and store the calculation results in the second data cache RAMB . The invention also provides a device for combining HARQ. Using the above technical solution, based on the latest interference cancellation algorithm, the probability of successful decoding is greatly improved; the storage space of DDR2 is saved, and the reading and writing efficiency is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a HARQ (Hybrid Automatic Repeat Request, Hybrid Automatic Repeat Request) combining method and device. Background technique [0002] In the HSUPA (high speed uplink packet access, high speed uplink packet access) service of the third generation mobile communication system UMTS (Universal Mobile Telecommunications System, universal mobile communication system), such as figure 1 As shown, it is a flow chart of E-DCH (Enhanced Dedicated Channel, enhanced uplink) channel symbol-level decoding, specifically including deinterleaving steps, derate matching steps, HARQ combining steps, Turbo decoding steps and CRC check steps . Among them, the HARQ combination is located between the de-rate matching and the TURBO decoding, and the HARQ combination is a multi-waiting parallel retransmission operation technology. It combines the characteristics of FEC (Forward Error Correction, forward ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18
CPCH04L1/1845H04L1/1874H04L1/1896H04L1/1812H04L25/067H04L5/0007H04L67/568H04L5/0053
Inventor 章伟王峰郭丹旦方明王尧
Owner ZTE CORP