Expansion unit

Abstract

An expansion unit comprises a power supply control unit, an FPGA digital processing unit, a central processor unit which is in bidirectional communication connected with the FPGA digital processing unit, an optical module interface unit, a Wlan / lan interface unit and gigabit Ethernet interface set, an RS232 / RS485 interface unit which is in bidirectional communication connection with the central processor unit in the extending unit, and a clock processing unit which is in communication connection with the central processor unit of the extending unit. The expansion unit can support common communication of GSM, WCDMA, TD-SCDMA, CDMA2000, LTE mobile communication data and 100 / 1000M WLAN data, etc. A remote end unit can be extended in a manner of an optical fiber or a Cat5 data line. The expansion unit supports a signal remote relay between the expansion units. Furthermore the expansion unit can supply a working power supply for the expanded remote unit.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to mobile communication technology, especially the coverage technology of mobile communication. Background technique [0002] In recent years, the number of mobile phone users in my country has grown by leaps and bounds, ranking first in the world. However, the low penetration rate and low communication quality cannot be concealed behind the glamor. By the end of 2012, the number of mobile phone users in my country has exceeded 1.112 billion, and the penetration rate has reached 82.6 units / household. Among them, the number of 3G mobile communication users has exceeded 200 million, exceeding the global average level. However, while the number of mobile phones is increasing, according to statistics from the website of the General Administration of Quality Supervision, Inspection and Quarantine, the satisfaction with communication services is declining. Therefore, improving the qua...

AI Technical Summary

Problems solved by technology

[0005] Most of the existing indoor coverage systems adopt the access-expansion-coverage method, but there are the following problems in the application of the expansion unit: 1) There are few signal formats supported, and it cannot be compatible with the transmission of multiple frequency signals at the same time; The interface form is single, and no spare expansion interface is provided; 3) It only provides expansion functions, without the ability of multi-level relay; 4) It cannot provide remote power supply for remote units; 5) Most indoor coverage systems are only mobile communication The expansion of data coverage cannot provide network data transmission in WLAN / LAN format, and it is difficult to meet the needs of today's network data services.

Images