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Mixed automatic retransmission requesting method

A hybrid automatic retransmission and non-adaptive retransmission technology, applied in the communication field, can solve problems such as uplink semi-persistent scheduling, and achieve the effect of uplink semi-persistent scheduling

Active Publication Date: 2013-01-16
ZTE CORP
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  • Description
  • Claims
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Problems solved by technology

[0009] The present invention aims to provide a hybrid automatic repeat request method to solve the above-mentioned problem of uplink semi-persistent scheduling when using the TTI bundling scheme

Method used

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  • Mixed automatic retransmission requesting method
  • Mixed automatic retransmission requesting method
  • Mixed automatic retransmission requesting method

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Embodiment Construction

[0031] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0032] figure 1 Shows a flow chart of a hybrid automatic repeat request method according to an embodiment of the present invention. Uplink semi-persistent scheduling is used in TTI bundling to allocate predefined resources for uplink semi-persistent scheduling, wherein the configuration of semi-persistent scheduling resources is prior to TTI When the bundling scheme is enabled, the base station allocates predefined resources for the UE for semi-persistent scheduling; the following steps are also included:

[0033] Step S1, the UE sends its corresponding redundancy version using predefined resources in the first subframe in the TTI bundle;

[0034] In step S2, the UE sends its corresponding redundancy versions in other subframes in the TTI bundle.

[0035] The hybrid automatic repeat request method provides the resource allocation ...

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Abstract

The invention provides a mixed automatic retransmission requesting method, which aims to use uplink semi-persistent dispatch in a TTI cluster and distribute a predefined resource for the uplink semi-persistent dispatch. The method comprises the following steps: UE sends a corresponding redundancy edition through using the predefined resource by a first sub-frame in the TTI cluster; and the UE respectively sends the redundancy editions corresponding to each other by the other sub-frames in the TTI cluster. The invention realizes the uplink semi-persistent dispatch for the TTI cluster scheme.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a hybrid automatic repeat request method. Background technique [0002] The Evolved Universal Terrestrial Radio Access Network (Evolved Universal Terrestrial Radio Access Network, referred to as E-UTRAN) of the third-generation mobile communication Long Term Evolution (referred to as LTE) system is composed of base stations (eNBs), so it can also The uplink layer 2 structure of the radio interface protocol called base station) is as follows figure 2 shown. In the media access control (Media Access Control, referred to as MAC) protocol layer, there is a scheduling / priority handling (Scheduling / Priority handling) functional entity, wherein the scheduling function supports dynamic scheduling (Dynamic scheduling) and semi-persistent scheduling (or called Semi-persistent Scheduling) (Semi-persistent Scheduling); the priority processing function supports priority processing betw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18
Inventor 张健张银成
Owner ZTE CORP
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