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Transmission method and device for enhanced physical hybrid automatic repeat request indication channel

A technology that indicates channels and enhances physics. It is applied in the direction of transmission path sub-channel allocation, transmission system, digital transmission system, etc., and can solve problems such as inapplicability and interference.

Active Publication Date: 2019-02-15
旭瑞亿(江苏)智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] The purpose of the present invention is to provide an ePHICH transmission method and device to overcome the capacity problems and interference problems of traditional PHICH and the unapplicable problems in NCT and Low cost MTC scenarios

Method used

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  • Transmission method and device for enhanced physical hybrid automatic repeat request indication channel
  • Transmission method and device for enhanced physical hybrid automatic repeat request indication channel
  • Transmission method and device for enhanced physical hybrid automatic repeat request indication channel

Examples

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application example 1

[0439] Only the first eCCE (ie, eCCE0) of each PRB resource available for ePHICH transmission (hereinafter referred to as ePHICH PRB resource) can be used for ePHICH transmission.

[0440] All eCCE0 resources available for ePHICH transmission are divided into more than one group, wherein preferably all eCCE resources are divided in units of eREGs. When each eCCE contains 4 eREGs, N PRB All transmission candidate eCCE resources in each ePHICH PRB are divided into 4N PRB Group, where each group consists of a single eREG or equivalent eREG resource; when each eCCE contains 8 eREGs, N PRB All transmission candidate eCCE resources in each ePHICH PRB can be divided into 8N PRB Groups, where each group consists of a single eREG resource or equivalent eREG resource. Among them, in the centralized ePHCIH transmission mode, each group of ePHICH time-frequency resources is composed of eREG on one PRB; in the distributed ePHICH transmission mode, each group of ePHICH time-frequency resour...

application example 2

[0445] The network side determines that there are 4 ePHICH PRB resources and assumes that the indexes are PRB0~3 respectively, and in each ePHICHPRB resource, only eREG resources {0, 4, 8, 12} can be used for ePHICH transmission, such as image 3 Shown. Assuming that by default, only the first 8 REs in each eREG (the order is frequency domain first, time domain, frequency domain from low to high, time domain from front to back) can be used for ePHICH transmission, such as Image 6 Shown.

[0446] The network side divides all resources available for ePHICH transmission into 16 groups by eREG. Each ePHICH time-frequency resource group is composed of 8 REs, and every two REs of these 8 REs come from corresponding eREGs in the same PRB. The corresponding RE position, such as Figure 7(a)~7(d) Shown:

[0447] The ePHICH time-frequency resource group 0 consists of the first and second REs from eREG0 in PRB0, the third and fourth REs from eREG0 in PRB1, the fifth and sixth REs from eREG0 ...

application example 3

[0461] The network side determines that there are 4 ePHICH PRB resources and assumes that the indexes are PRB0~3 respectively, and in each ePHICHPRB resource, only eREG resources {0, 4, 8, 12} can be used for ePHICH transmission, such as image 3 Shown. Assuming that by default, only the first 8 REs in each eREG (the order is frequency domain first, time domain, frequency domain from low to high, time domain from front to back) can be used for ePHICH transmission, such as Image 6 Shown.

[0462] The network side uses eREG as the unit to divide all the resources available for ePHICH transmission into 16 groups, the division method is as follows Figure 9(a)~9(d) Shown. Each ePHICH time-frequency resource group consists of 8 REs, and every two REs of the 8 REs come from the corresponding RE positions of the corresponding eREG in the same PRB, such as:

[0463] ePHICH time-frequency resource group 0 is composed of the first two REs from eREG0 in PRB0, PRB1, PRB2, and PRB3;

[0464] eP...

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PUM

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Abstract

A transmission method and device of an enhanced Physical Hybrid ARQ Indicator Channel (ePHICH). The method is applied to a network side, comprising: configuring one ePHICH time frequency resource group in ePHICH transmission candidate time frequency resources and / or orthogonal sequence information and indicating the configured resources / information to a terminal, the ePHICH transmission candidate time frequency resources comprising one or more ePHICH time frequency resource groups, and each ePHICH time frequency resource group comprising one or more ePHICH transmission candidate resources; each ePHICH transmission candidate resource being multiplexed by one orthogonal sequence and mapped in the corresponding ePHICH time frequency resource group; and different ePHICH transmission candidate resources in the same ePHICH time frequency resource group using orthogonal sequences that are orthogonal to each other. A network side device comprises a configuration module and an indication module. The embodiments of the present invention can improve the capacity in transmission of downlink HARQ information, and enhance anti-interference performance.

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 ARQ Indicator Channel (ePHICH). Background technique [0002] The Long Term Evolution (LTE for short) system is an important plan of the 3rd Generation Partnership Project (3GPP for short). When the LTE system uses the conventional cyclic prefix (Cyclic Prefix, referred to as CP), a slot contains 7-length uplink / downlink symbols; when the LTE system uses the extended CP, a slot contains 6-length uplink / downlink symbols . [0003] The following 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 indication channel used to determine the physical hybrid automatic repeat request (Physical Hybri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18H04L5/00
CPCH04L1/1864H04L1/1861H04L5/0053
Inventor 弓宇宏孙云锋郭森宝黄宗伟
Owner 旭瑞亿(江苏)智能科技有限公司