Clock management system in uTCA system and method thereof
A clock management and clock technology, which is applied in the communication between multiple stations, electrical components, synchronization devices, etc., can solve the problems of deteriorating clock performance and uTCA architecture redundancy, etc.
Active Publication Date: 2012-11-28
ZTE CORP
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[0008] In view of the above analysis, the present invention aims to provide a clock management system and method in a uTCA system to solve the problems of uTCA architecture redundancy and deterioration of clock performance on the MCH single board existing in the prior art
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[0037] The purpose of the present invention is to provide a clock management system and method in the uTCA system under the premise of satisfying various wireless transmission standards. By combining the clock source synchronization circuit into one circuit, the PCB area of the clock card on the MCH board is reduced. , It improves the clock performance and reduces the cost of the clock card.
[0038] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings constitute a part of the application and are used together with the embodiments of the present invention to explain the principle of the present invention. For the purpose of clarity and simplification, when it may obscure the subject of the present invention, detailed descriptions of known functions and structures in the devices described herein will be omitted.
[0039] First of all Figure 4 The clock management system in th...
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The invention discloses a clock management system in a uTCA system and a method thereof. The system comprises a clock management device and an SERDES clock generation unit, wherein, the clock management device comprises a reference source clock selection unit, a clock source generation unit and a clock source drive unit, the reference source clock selection unit selects a clock source from a plurality of received clock sources as a reference clock source; the clock source generation unit generates a clock source synchronous with the reference clock source according to the received reference clock source; the clock source drive unit carries out level translation on the clock source received from the clock generation unit, and transmits the clock source to the SERDES clock generation unit; and the SERDES clock generation unit carries out frequency conversion on the clock source received from the clock source drive unit, and generates desired SERDES clock. The system and the method help reduce the realization difficulty of hardware circuits, PCB area of MCH units and the cost.
Description
Technical field [0001] The present invention relates to the technical field of uTCA systems, and in particular to a clock management system and method in the uTCA system. Background technique [0002] MicroTCA (also called uTCA) is the PCI Industrial Computer Manufacturers Association (PICMG ) A new open standard currently under development. Compared with ATCA, the uTCA architecture is smaller in size and more suitable for base station-side equipment. It is an open standard communication service platform promoted by Intel and others. Its purpose is to be based on a unified hardware architecture and be used by different equipment manufacturers. Provide communication boards, and finally the system manufacturer integrates a complete set of communication equipment. [0003] Such as figure 1 As shown, figure 1 It is the architecture diagram of the uTCA system in the prior art. In a uTCA system, a system consists of machine frame, PM (Power Module), MCH (uTCA Carrier Hub, management s...
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IPC IPC(8): H04W56/00H04B7/26
Inventor 柳旺
Owner ZTE CORP