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Method and apparatus for transmitting interference information

A technology for interfering signals and distributing information. It is used in multiplexing communication, wireless communication, orthogonal multiplexing systems, etc., and can solve problems such as reducing transmission range.

Inactive Publication Date: 2019-08-23
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since a multi-node system transmits signals using dispersed nodes, the transmission range covered by each antenna is reduced compared to the antennas included in a conventional central antenna system

Method used

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  • Method and apparatus for transmitting interference information
  • Method and apparatus for transmitting interference information
  • Method and apparatus for transmitting interference information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] Using a bitmap in PRB pair units can provide information on resource regions allocated by interfering base stations. In particular, PRB bundling information can be represented using a bitmap according to PRB pairs. For clarity, it is assumed that the interfering base station delivers information of resource region allocation related to 15 PRB pairs and 2 subframes to the serving base station, and the serving base station provides the information to the NAICS UE via RRC signaling. And, assume that the same resource is allocated during two slots in a subframe. Table 5 shows allocation of resource regions of interfering base stations represented by bitmaps. In this case, the bitmap requires a length of 30 bits (15*2=30). The bitmap may have a continuous form in such a way that the first 15 bits are displayed in the first subframe and the other 15 bits are displayed in the second subframe.

[0100] [table 5]

[0101] PRB bundling 00110 01100 00000 00110 00...

Embodiment 2

[0108] Using the integer form can provide information on a resource region allocated by an interfering base station in a PRB pair. In particular, the PRB bundling information can be represented using an integer form according to the PRB pair. Table 6 shows an example of information on resource regions allocated by interfering base stations represented by integers.

[0109] [Table 6]

[0110]

[0111] As shown in Table 6, if it is assumed that PRB bundling is only applied to the PRB pair positions of the diagonal area, as shown in Table 6, the corresponding length information and information about whether to perform PRB bundling can be expressed in integer form Information. For example, if the PRB bundling information corresponds to 1 and the corresponding bundling length corresponds to 2, the interfering base station applies PRB bundling to two PRB pairs. If the bundling length is greater than 3, bundling is performed in a manner of dividing the bundling length by the bu...

Embodiment 3

[0115] Regarding Embodiment 1 and Embodiment 2, if the resource region allocation information on whether to perform bundling is expressed in units by PRB, it may be required to have too many pieces of information. Accordingly, it is possible to notify information on resource regions allocated by the interfering base station in RB group (RBG) units. To this end, the interfering base station can perform scheduling in the RBG unit. In particular, the interfering base station applies PRB bundling to all RBGs in which PRB bundling is performed, and does not apply PRB bundling to all RBGs in which PRB bundling is not performed.

[0116] To facilitate NAICS operation of NAICS UEs, the serving base station or interfering base station can provide (RBG size) / (bundle size) number of NA information to the RBG to which PRB bundling is applied, and the serving base station or interfering base station can provide individual NA information Provided to RBGs to which PRB bundling is not applie...

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Abstract

According to one embodiment of the present invention, a method for receiving information for canceling interference of a terminal is disclosed. The method is performed by the terminal and can include the steps of: receiving from the serving base station information about allocation of resource regions of adjacent cells for canceling interference signals; and using the resource region allocation information in order to cancel interference signals in downlink signals .

Description

technical field [0001] The present invention relates to a wireless communication system, and more specifically, to a method for sending and receiving information for canceling interference and a device thereof. Background technique [0002] Recently, various devices requiring machine-to-machine (M2M) communication and high data transfer rates, such as smart phones or tablet personal computers (PCs), have emerged and are widely used. This rapidly increases the amount of data that needs to be processed in the cellular network. In order to meet such a rapidly increasing data throughput rate, recently, carrier aggregation (CA) technology that effectively uses a wider frequency band, cognitive radio technology, multiple antenna (MIMO) technology for increasing data capacity in restricted frequencies, Multi-base station cooperation technology and the like have received attention. Furthermore, the communication environment has evolved such that the density of accessible nodes inc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/04H04W72/04H04W72/54
CPCH04J11/005H04L5/0094H04W28/04H04W72/541H04W72/20
Inventor 李贤镐金沂濬金亨泰
Owner LG ELECTRONICS INC
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