Method, device and system for calibration control of communication channel in radio base station
A technology of radio base stations and radio equipment, which is applied in wireless communication, communication between multiple stations, electrical components, etc., and can solve problems such as large timing deviations in the application layer of equipment
Active Publication Date: 2013-04-17
CHINA MOBILE COMM GRP CO LTD +1
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Problems solved by technology
With the continuous increase of connection forms, the possible timing deviation of the device application layer introduced by the data transmission time between REC and RE will become larger and larger. In addition, with the development of technology, the requirements for device timing accuracy will increase. is getting higher and higher, therefore, it is necessary to take corresponding measures to solve the timing accuracy problem of the equipment application layer in the radio base station
Method used
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Embodiment Construction
[0046] The method in the embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0047] Such as figure 1 As shown, in one embodiment, the calibration control method flow of the communication channel in the radio base station is as follows:
[0048] Step 11. The radio equipment RE in the radio base station performs initialization calibration on the communication channel, and reports the initialization calibration result to the radio control equipment REC in the radio base station. The initialization calibration result includes the RE system time.
[0049] Step 12: Perform time synchronization processing on the REC and the RE according to the RE system time.
[0050] Depend on figure 1 It can be seen from the flow shown that in order to solve the timing accuracy problem of the equipment application layer in the radio base station, the embodiment of the present invention realizes precise timing by reporting the RE s...
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The invention discloses a calibration control method for a communication channel in a radio base station. The method comprises: a radio equipment (RE) receiving a radio equipment control (REC) system time, according to the received REC system time increasing accumulative time, acquiring an RE system time and performing initialization calibration to the communication channel, and reporting the result to the REC, the result comprising the RE system time; the REC acquiring the difference between the RE system time and the REC system time according to the RE system time; taking one half of the difference as a bias of the RE system time and the REC system time, and performing time synchronization treatment to the REC and RE. The invention also discloses the RE, the REC and a radio base station system in the radio base station. Due to the adoption of the invention, the accurate timing to the application layer of the equipment can be realized, and the influence to the communication channel due to unstable consistency of the amplitude phase of the communication channel under the operational mode of the antenna array of the RE also can be avoided.
Description
technical field [0001] The invention relates to the technical field of wireless communication, in particular to a calibration control method, device and system for a communication channel in a radio base station. Background technique [0002] In recent years, with the development of base station design technology in wireless communication systems, the radio control equipment (REC) and radio equipment (RE) in the radio base station tend to be physically separated. For example, the RE can be close to the antenna, and the REC is located at a place for easy access. The RECs perform baseband signal processing, while each RE converts between baseband and radio frequency and transmits or receives information through one or more antennas. The REC is connected to multiple remote REs through independent dedicated optical links. Each link transmits data downlink from the REC to the RE, and transmits data uplink from the RE to the REC. [0003] The data interaction between the REC and...
Claims
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IPC IPC(8): H04B7/26H04W56/00H04W88/02H04W88/12
Inventor 丁海煜马欣金磊贺鹏秦岩苏洁陈永欣郑忠斌
Owner CHINA MOBILE COMM GRP CO LTD