Method, device and system for transmitting control information

A technology for transmission control and control information, which is applied in transmission systems, separation devices of transmission paths, digital transmission systems, etc., and can solve problems such as high bit error rate or block error rate of control information, poor frequency diversity, poor channel frequency diversity, etc. , to achieve the effects of alleviating poor channel frequency diversity, improving performance, and reducing the probability of information loss

Active Publication Date: 2013-08-28
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] If the eREGs of the same eCCE come from two adjacent RBs, such as RB0 and RB1, the channel frequency diversity of the two eREGs of the eCCE during transmission will be poor, and the frequency diversity will be poor. Cause the terminal equipment to process information loss, for example: the bit error rate or block error rate of the control information sent by the base station received by the terminal equipment is high, thereby reducing the performance of the communication system, for example: in the case of information loss, The base station needs to retransmit the information, thereby further communicating the performance of the system

Method used

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  • Method, device and system for transmitting control information
  • Method, device and system for transmitting control information
  • Method, device and system for transmitting control information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] An embodiment of the present invention provides a method for transmitting control information, such as Figure 2a shown, including:

[0093] S201. Determine the number of the enhanced resource element group eREG in the resource block RB, and determine the position of the resource element corresponding to the enhanced resource element group according to the number of the enhanced resource element group in the resource block RB.

[0094] Wherein, there may be various specific expressions of the position of the resource unit corresponding to the enhanced resource unit group in the resource block, for example:

[0095] Figure 2b Shown is an example of time prioritization of resource units.

[0096] That is, in one RB, 16 REs are defined in total. According to the principle of time dimension priority, first arrange according to the order of OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing technology) symbols, and then arrange a...

Embodiment 2

[0111] An embodiment of the present invention provides a method for transmitting control information, such as Figure 3a shown, including:

[0112] This embodiment mainly provides a specific implementation manner for a base station to reduce the size difference between enhanced control channel elements.

[0113] S301. Determine the eREG number in the resource block RB.

[0114] In this embodiment, S301 may include the method flow of S3011 to S3012.

[0115] S3021. Determine the resource block number.

[0116] In this embodiment, the base station can acquire the numbers of each resource block from the memory by means of the prior art.

[0117] It should be noted that the resource block number described in the embodiment of the present invention may be the number of the resource block in the system bandwidth, or the number in the ePDCCH (Enhanced Physical Downlink Control Channel, enhanced physical downlink control channel) transmission resource block set , or the number in ...

Embodiment approach

[0119] Further, in this embodiment, there may be two specific implementation manners of S3022. These two implementation manners may exist side by side in this embodiment, and one of them may be executed by the base station according to specific application scenarios. The two implementation manners Ways include:

[0120] one, such as Figure 3b Shown:

[0121] S30121. Obtain the number of stored predefined templates and the number of each template.

[0122] In this embodiment, the base station can obtain the number of all templates stored in the memory and the number of each template.

[0123] It should be noted that the predefined templates stored in the memory may be predefined templates in the existing 3GPP protocol, and the base station may extract at least one of the predefined templates in the memory as a preset template.

[0124] S30122, according to preset rules, obtain eREGm in RBn k The corresponding template identifier p in .

[0125] Among them, the preset rule...

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Abstract

This invention discloses a method, a device and a system for transmitting control information, comprising enhanced resource element group number in determination resource block, a determination enhanced control channel unit, and a determination enhanced control channel unit. The enhanced resource element group number determine the psotion of the resource unit corresponiding to the enhanced resource element group. The enhanced control channel unit position corresponding to the resource unit is determined according to the positions of the resource enhanced control channel unit and the enhanced recource element group which are corresponding to the resource unit. This invention relives a problem that the diversity is not good, and reduces the lost ratio of terminal equipment.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method, device and system for transmitting control information. Background technique [0002] Among existing wireless communication technologies, OFDMA (Frequency Division Multiplexing Access, Orthogonal Frequency Division Multiple Access), as a mature downlink multiple access technology, is widely used in communication systems such as LTE / LTE-A. A major feature of this technology is that one RB (resource block) can be composed of multiple REs (resource units), and each RE in one RB can bear different information, for example: [0003] Such as Figure 1a As shown, when the PDCCH transmits downlink data, the REs in one RB can be allocated as follows: information in the PDCCH channel, cell-level reference signal (CRS), user-level reference signal, channel state information reference signal (CSI- RS) and other reference signals can be mapped to Figure 1a T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04W88/08
CPCH04L27/2611H04L1/0071H04L5/003H04L27/2601H04L5/0007H04L5/0053H04W72/23H04L5/0046H04L5/0048
Inventor 唐臻飞李元杰
Owner HUAWEI TECH CO LTD
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