IQ signal switching method, base station and switching unit
A switching unit and signal switching technology, which is applied in wireless communication, electrical components, communication between multiple stations, etc., can solve problems such as incompatibility with IQ signal switching, and achieve the effect of improving spectrum utilization
Inactive Publication Date: 2011-05-25
刘小菲 +4
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Problems solved by technology
Since the multi-mode wireless communication system can be compatible with different wireless access methods, and the IQ capacity of different wireless access methods is different, it is difficult for the existing single-mode base station to be compatible with various wireless access methods in the current multi-mode wireless communication system. Incoming mode IQ handshake requirements
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[0055] Before describing the embodiments of the present invention, relevant definitions are firstly introduced to facilitate description.
[0056] The minimum granularity of the switching unit, that is, when the base station is compatible with multiple wireless access methods, the capacity of the link for exchanging IQ signals that can be used by services of all wireless access methods.
[0057] In the embodiment of the present invention, the minimum granularity of the switching unit is determined as the greatest common divisor of the IQ capacity of one channel of all wireless access modes compatible with the base station, that is, the IQ capacity of one channel of all wireless access modes is an integer multiple of the minimum granularity.
[0058] The minimum granularity link of the baseband board refers to several links allocated by the baseband board used by the current service according to the minimum granularity of the switching unit, and the capacity of each link is the ...
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The invention discloses an exchange method, a base station and an exchange unit for IQ signals, wherein the method comprises the following steps: the minimum granularity of an exchange unit is determined, which is the maximum common divisor of the IQ capacity of one circuit of all wireless access modes that are compatible with the base station; the minimum granularity links of optical ports and base-band plates used by the current business are respectively looked through, successive idle minimum granularity links in the number of a first numerical value are chosen to be the links for the exchange of the IQ signals of the current business, and the capacity of the minimum granularity link is the minimum granularity; the first numerical value is the ratio of the IQ capacity of one circuit ofall wireless access modes to the minimum granularity. By means of the invention, the base station allows the IQ signals of different wireless access methods to exchange, and the exchange of IQ signals of different wireless access modes can be carried out without mutual interference, thereby improving the utilization ratio of the frequency spectrum.
Description
technical field [0001] The present invention relates to the field of wireless communication, in particular to an IQ (In-pase / Quadrature, in-phase / quadrature phase) signal switching method, base station and switching unit. Background technique [0002] In order to expand the network coverage, at present, the baseband processing part and the radio frequency part in the traditional base station are usually separated into two devices, the baseband processing unit and the remote radio frequency unit. Implement wireless network coverage on planned sites. An optical fiber connection is used between the baseband processing unit and the remote radio frequency unit, wherein one baseband processing unit can be connected to several remote radio frequency units. [0003] The exchange of IQ signals is implemented between the baseband processing unit and the radio frequency unit through a switching unit. The downlink baseband IQ signal sent by the baseband processing unit is converted in...
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IPC IPC(8): H04W88/10H04B7/26
Inventor 毛芬霞
Owner 刘小菲