Carrier power allocation method and system for the same power amplification

Abstract

The present invention relates to a wireless communication field and discloses a carrier power division method and system in a same power amplifier to improve the power utilization ratio of the power amplifier. In the present invention, an instantaneous transmitting power is distributed to the carrier wave in the power amplifier when the sum of the biggest transmitting powers configured to each carrier wave is bigger than the rated gross power and when the sum of the instantaneous transmitting power of each carrier wave is smaller than or equal to the rated gross power, otherwise, the rated gross power is distributed to each power amplifier according to a predetermined rule in the power amplifier. If each carrier wave includes at least one wave carrying the R99 service and at least one wave carrying the HSDPA service, only the power of the R99 service distributed to each carrier wave can be restrained and the dump power can be obtained through subtracting the sum of the transmit power of the R99 service in each carrier wave by the gross transmit power of the power amplifier. Then part of or the whole of the dump power is distributed to the wave carrying the HSDPA service for transmitting the HSDPA service.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to carrier power distribution technology. Background technique [0002] With the development of mobile communication, the Wideband Code Division Multiple Access ("WCDMA") R99 network in the initial stage of network construction will face the problems of increasing users and increasing capacity requirements, especially in dense urban areas and bustling commercial areas. , the above problems are more obvious. In order to enable the WCDMA network to provide greater capacity and meet the needs of users, the R99 multi-carrier network was created on the basis of the initial WCDMA R99 network. Figure 1 is a schematic diagram of the R99 dual-carrier network. [0003] In Figure 1, there are two cells (Cell) controlled by the same base station (NodeB) and radio network controller (Radio Network Controller, "RNC") in the same area, Cell1-f1-R99-20W in the figure Indicates that the frequ...

AI Technical Summary

Problems solved by technology

However, since the maximum transmit power of the two carriers is limited to 20W, the power resources of the high-load carrier are not enough, and the power resources of the low-load carrier are wasted, as shown in the circles in Figure 2 and Figure 4

It can be seen from the figure that about 20% of the power of the two carriers is not fully utilized, and there is a certain degree of waste of power resources

[0010] Moreover, the limitation of the maximum transmission power also makes the access threshold of R99 service indirectly restricted, and it cannot accommodate more users within a reasonable range

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