Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Combined interference rejection method, combined interference rejection device, and method and device for implementing uplink CoMP

A technology of interference suppression and combining algorithms, applied in the field of wireless communication, can solve the problems of poor anti-interference ability of uplink CoMP, achieve good anti-interference ability, increase user gain, and improve anti-interference ability

Active Publication Date: 2016-05-18
ZTE CORP
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The main technical problem to be solved by the present invention is to provide a joint interference suppression method and device, and a method and device for realizing uplink CoMP, which can solve the technical problem that the current distributed network cannot realize uplink CoMP and the uplink CoMP anti-interference ability is poor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Combined interference rejection method, combined interference rejection device, and method and device for implementing uplink CoMP
  • Combined interference rejection method, combined interference rejection device, and method and device for implementing uplink CoMP
  • Combined interference rejection method, combined interference rejection device, and method and device for implementing uplink CoMP

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Considering that uplink CoMP cannot be realized for distributed networks at present, and the application of IRC algorithm for interference suppression cannot achieve the best effect, resulting in the current technical problems of poor anti-interference ability of uplink CoMP; image 3 As shown, this embodiment provides a joint interference suppression method for implementing uplink CoMP, including the following steps:

[0051] Step 301: The first cell receives the scheduling information of the second terminal sent by the second cell, the second terminal belongs to the second cell, and the scheduling information includes the information allocated by the second cell to the second terminal. Resource block information and pilot symbol position information.

[0052] In this embodiment, the first cell may be a serving cell or a cooperating cell in the CoMP system, and the second cell may be a cooperating cell or a serving cell in the CoMP system.

[0053] Step 302: When the ...

Embodiment 2

[0064] Such as Figure 5 As shown, this embodiment provides a method for implementing uplink CoMP, including the following steps:

[0065] Step 501: When the first cell and the second cell that need to perform uplink CoMP do not belong to the same base station, detect the transmission delay between the base station serving the first cell and the base station serving the second cell.

[0066] Step 502: Determine whether the transmission delay satisfies a preset time condition, if yes, execute step 503, if not, execute step 504.

[0067] Preferably, the preset time condition in this step may include: the transmission delay is greater than the second delay and less than or equal to the first delay, and the first delay is a preset maximum uplink CoMP delay.

[0068] Preferably, when the system also presets other JR modes, the second delay in this embodiment is the preset maximum delay for implementing uplink CoMP by using the joint soft bit combining mode.

[0069] Step 503: Imp...

Embodiment 3

[0104] Such as Figure 7 As shown, this embodiment provides a joint interference suppression device for implementing uplink CoMP, including: a receiving unit and an interference suppression unit;

[0105] The receiving unit is configured to receive scheduling information of the second terminal sent by the second cell, the second terminal belongs to the second cell, and the scheduling information includes the information allocated by the second cell to the second terminal. Resource block information and pilot symbol position information;

[0106] The interference suppression unit is used to eliminate co-channel interference from the second cell to the first cell by using an interference suppression combining algorithm according to the scheduling information when the first cell demodulates the information sent by the first terminal therein.

[0107] Using the joint interference suppression device provided in this embodiment, since the first cell (cooperative cell or serving cel...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a combined interference rejection method, a combined interference rejection device, and a method and a device for implementing uplink CoMP. The combined interference rejection method, which is used for implementing uplink CoMP, comprises the following steps: a first cell receives scheduling information of a second terminal sent by a second cell, wherein the second terminal belongs to the second cell, and the scheduling information includes resource block information and pilot symbol position information allocated by the second cell to the second terminal; and when the first cell demodulates information sent by a first terminal under the first cell, co-channel interference of the second cell to the first cell is eliminated by an interference rejection combining algorithm according to the scheduling information. By using the combined interference rejection method of the invention, the technical problem that the existing distributed network cannot implement uplink CoMP and is of poor uplink CoMP anti-jamming capability is solved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for joint interference suppression, and a method and device for realizing uplink CoMP. Background technique [0002] Coordinated multi-point transmission / reception (CoMP) technology is a technology in an LTE-A network that improves cell edge throughput, increases high-rate data service coverage, and improves system throughput by reducing or eliminating co-channel interference. technology. [0003] Such as figure 1 As shown, the current actual CoMP networking scenarios of operators mainly include two types: centralized and distributed. Centralized networking is to put the baseband unit (BBU) of each eNodeB together, and place the radio frequency unit (RRU) on the required site. The BBU and RRU are connected by optical fiber, and the BBUs can also be directly connected by optical fiber Connect to realize X2 interface interaction. In di...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04W72/08H04W72/12
CPCH04J11/0053H04W72/54
Inventor 罗夙
Owner ZTE CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com