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

GSM-R base station with high interference signal restraining capability

A GSM-R and interference signal technology, applied in the field of GSM-R base stations, can solve the problems of receiver amplifier saturation and inability to receive signals normally, achieve the goal of compressing the receiving bandwidth, reducing transceiver interference, and lowering the floor noise level Effect

Active Publication Date: 2014-08-27
NANJING TICOM TECH
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 3) Blocking interference: receiving a strong signal at the out-of-band edge, which saturates the receiver amplifier and cannot receive the signal normally

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
  • GSM-R base station with high interference signal restraining capability
  • GSM-R base station with high interference signal restraining capability
  • GSM-R base station with high interference signal restraining capability

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention will be further described below in conjunction with accompanying drawing.

[0026] The dual bandpass filter structure is as image 3 As shown, it includes the high-frequency signal insertion port RFin and the radio frequency signal port RFout. When the base station is connected with dual bandpass filters, the structure is as follows figure 1 shown. The high-frequency signal insertion port RFin is N-K radio head, connected to 1 / 2 feeder, and connected to the GSM-R base station, and the radio frequency signal port RFout is L29(7 / 8)-K radio head, connected to 7 / 8 feeder, and connected to the antenna.

[0027] The dual bandpass GSM-R coupler structure is as follows Figure 4 As shown, it includes the high-frequency signal insertion port RFin, the radio frequency signal port RFout and the coupling port Couple. When the base station is connected to the dual bandpass GSM-R coupler, the structure is as follows figure 2 shown. . The high-frequency s...

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 provides a GSM-R base station with high interference signal restraining capability. The GSM-R base station comprises a BTS and an antenna, and a pair of dual-bandpass filters or a pair of dual-bandpass GSM-R couplers is arranged between the BTS and the antenna. Each dual-bandpass filter or each dual-bandpass GSM-R coupler comprises a high-frequency signal insertion port RFin and a radio frequency signal port RFout, wherein the high-frequency signal insertion port RFin is an N-K radio frequency head which is connected with a 1 / 2 feeder and connected with the GSM-R base station, and the radio frequency signal port RFout is an L29 (7 / 8)-K radio frequency head which is connected with a 7 / 8 feeder and connected with the antenna. According to the GSM-R base station with the high interference signal restraining capability, due to the dual-bandpass filters or the dual-bandpass GSM-R couplers, the reception bandwidth of the GSM-R base station is compressed, the bottom noise level is lowered, out of band large signal interference is restrained, blocking of GSM-R BTS is prevented, and the interference on the GSM-R BTS caused by intermodulation is effectively reduced.

Description

technical field [0001] The invention relates to the field of communication systems, in particular to a GSM-R base station with high suppression of interference signals. Background technique [0002] With the continuous increase of communication requirements, wireless communication networks are almost everywhere, and frequency resources are becoming increasingly tight, and the resulting mutual interference between wireless systems is inevitable. The working frequency band of GSM-R is uplink 885-889MHz; downlink 930-934MHz; adjacent to China Telecom, China Mobile and China Unicom, see the following table for details: [0003] [0004] GSM-R base station radio frequency interference mainly includes the following types: [0005] 1) Uplink interference: According to Table 1, the uplink frequency band of the GSM-R base station is susceptible to the downlink interference of China Telecom's CDMA800 and the second harmonic interference of China Unicom's DCS1800, resulting in a de...

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): H04B1/10H04W88/08
Inventor 倪小龙吉荣新
Owner NANJING TICOM TECH
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