Enhanced physical mixed automatic retransmission request indication channel transmission method and device

A hybrid automatic retransmission and enhanced physical technology, applied in the field of ePHICH) transmission, can solve problems such as insufficient resources, indication channel interference, etc.

Active Publication Date: 2014-06-18
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The present invention provides an enhanced physical hybrid automatic repeat request indicator channel (PHICH) transmission method and device to at least solve the problems of interference and insufficient resources of the physical hybrid automatic repeat request indicator channel (PHICH) in the prior art

Method used

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  • Enhanced physical mixed automatic retransmission request indication channel transmission method and device
  • Enhanced physical mixed automatic retransmission request indication channel transmission method and device
  • Enhanced physical mixed automatic retransmission request indication channel transmission method and device

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Embodiment 1

[0186] The enhanced physical hybrid automatic repeat request indication channel (ePHICH) carries ACK / NACK information corresponding to uplink data transmission (for example, the physical uplink shared channel PUSCH). Multiple ePHICHs are mapped to the same group of resources to form an ePHICH group, and ePHICHs belonging to an ePHICH group are multiplexed with different orthogonal masks (OCC, Orthogonal Cover Code). An ePHICH resource consists of index pairs OK, where Is the ePHICH group serial number, Configure the index for the ePHICH index in the group, that is, the OCC.

[0187] The physical resource blocks where ePHICH is located (hereinafter referred to as ePHICH PRBs) are configured by the network side or agreed in advance. Figure 14 It is a schematic diagram of the resource mapping pattern of the enhanced physical hybrid automatic repeat request indication channel according to the preferred embodiment 1 of the present invention, such as Figure 14 As shown, the symbols...

Embodiment 2

[0198] The enhanced physical hybrid automatic repeat request indication channel (ePHICH) carries ACK / NACK information corresponding to uplink data transmission (for example, the physical uplink shared channel PUSCH). Multiple ePHICHs are mapped to the same group of resources to form an ePHICH group, and the ePHICHs belonging to one ePHICH group are multiplexed by OCC with different orthogonal masks. An ePHICH resource consists of index pairs OK, where Is the ePHICH group serial number, Configure the index for the ePHICH index in the group, that is, the OCC.

[0199] The physical resource blocks where ePHICH is located (hereinafter referred to as ePHICH PRBs) are configured by the network side or agreed in advance. Figure 15 It is a schematic diagram of the resource mapping pattern of the enhanced physical hybrid automatic repeat request indication channel according to the preferred embodiment 2 of the present invention, such as Figure 15 As shown, the symbols 4-13 in the phys...

Embodiment 3

[0204] The enhanced physical hybrid automatic repeat request indication channel (ePHICH) carries ACK / NACK information corresponding to uplink data transmission (for example, the physical uplink shared channel PUSCH). Multiple ePHICHs are mapped to the same group of resources to form an ePHICH group, and the ePHICHs belonging to one ePHICH group are multiplexed by OCC with different orthogonal masks. An ePHICH resource consists of index pairs OK, where Is the ePHICH group serial number, Configure the index for the ePHICH index in the group, that is, the OCC.

[0205] The physical resource blocks where ePHICH is located (hereinafter referred to as ePHICH PRBs) are configured by the network side or agreed in advance. Figure 16 It is a schematic diagram of the resource mapping pattern of the enhanced physical hybrid automatic repeat request indication channel according to the preferred embodiment 3 of the present invention, such as Figure 16 As shown, the symbols 4-13 in the phys...

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Abstract

The invention provides an enhanced physical mixed automatic retransmission request indication channel ePHICH transmission method and device. The method comprises the following steps: an ePHICH resource mapped to an ePHICH is determined by a network side, wherein the ePHICH resource comprises N resource element groups and each resource element group comprises M resource elements; all the resource elements in one resource element group are located in the same physical resource block; the physical resource block is configured to a terminal side by the network side and / or is determined by the network side and the terminal side according to a pre-set manner; the M and the N are integers which are more than 1; information is transmitted to the terminal side by the network side according to the determined ePHICH resource. With the adoption of the enhanced physical mixed automatic retransmission request indication channel ePHICH transmission method and device, the problems of an enhanced physical mixed automatic retransmission request indication channel in the prior art that the interferences exist and the resources are not enough are solved; compared with the method adopted in the prior art, the backward compatibility of the method is better.

Description

Technical field [0001] The present invention relates to the field of communications, and in particular, to a transmission method and device for an enhanced physical hybrid automatic repeat request indication channel ePHICH (enhanced Physical HybridARQ Indication Channel, ePHICH for short). Background technique [0002] Long Term Evolution (LTE) is an important plan of the third-generation partner organization. When the LTE system uses the Normal Cyclic Prefix, a slot contains 7-length uplink / downlink symbols, when the LTE system uses the extended cyclic prefix (Extended Cyclic Prefix), a slot contains 6-length uplink / downlink symbols symbol. [0003] The following types of downlink physical channels are defined in the LTE system: [0004] Physical Broadcast Channel (PBCH): The information carried by this channel includes the frame number of the system, the downlink bandwidth of the system, the period of the physical hybrid retransmission channel, and the physical hybrid retransmiss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18
CPCH04L1/18H04L5/0055H04L1/1861H04L5/0007
Inventor 弓宇宏孙云锋戴博鲁照华
Owner ZTE CORP
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