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HARQ feedback method for HFDD user asymmetric receiving/transmission mode

A transceiving mode, asymmetric technology, applied in the field of HARQ feedback, can solve the problem that the HFDD transceiving mode cannot be applied

Active Publication Date: 2012-11-28
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0025] The present invention aims to provide a HARQ feedback method for HFDD user asymmetric transceiving mode, which can solve the problems that the existing HARQ feedback method for user asymmetric transceiving mode cannot be applied to HFDD user transceiving mode, etc.

Method used

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  • HARQ feedback method for HFDD user asymmetric receiving/transmission mode
  • HARQ feedback method for HFDD user asymmetric receiving/transmission mode
  • HARQ feedback method for HFDD user asymmetric receiving/transmission mode

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Embodiment Construction

[0042] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0043] figure 2 A flowchart showing a method for assigning a HFDD user transceiver mode according to an embodiment of the present invention, including the following steps:

[0044] Step S10, obtain the parameter M through the system parameters of the HFDD system, where M represents the length between the UL data and the corresponding DL ACK / NACK reply and the length between the DL data and the corresponding UL ACK / NACK reply, and the two equal in length;

[0045] Step S20, obtain the parameters N, P2, P3, P4, P5, P6 through the service type of the user equipment, wherein N represents the basic cycle of sending and receiving of the user equipment; P2 represents the length of a downlink transmission of the user equipment, and P2 is less than or equal to M+1 ; P3 represents the length of an uplink transmission by the user equipment, ...

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Abstract

The information provides an HARQ feedback method for a HFDD user non-symmetric transmission and reception pattern, comprising the following steps of: according to the downlink burst data of P2 continuous subframes, performing P2 HARQ information feedbacks in a single ACK / NACK mode to the last subframe of the following adjacent uplink burst; according to the uplink burst data of P3 continuous subframess, performing P3 HARQ information feedbacks in a single ACK / NACK mode to the last subframe of the following adjacent uplink burst. The method provides a proper HARQ feedback method for the HFDD user symmetric transmission and reception pattern according to the properties of the HFDD.

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) feedback method for HFDD (Half Frequency Division Duplex, half frequency division duplex) user asymmetric type transceiver mode. Background technique [0002] HFDD can adapt to flexible spectrum allocation, and at the same time, it is cheap because it does not use a duplexer. The widely used GSM (Global System for Mobile Communications, Global System for Mobile Communications) terminal is a HFDD mode, and the GSM terminal transceiver relationship is relatively simple. This working mode terminal realizes the air interface circuit working mode. The introduction of HFDD into wireless mobile communication systems characterized by air interface packetization and link adaptation, such as WiMAX (Worldwide Interoperability for Microwave Access) and LTE (Long Term Evolution, long-term evolution), will require cons...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16H04L1/18
Inventor 赵建平张峻峰
Owner ZTE CORP