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Radio transmit power adjustment based on multiple radio frequency paths and sources of insertion loss

專利號(hào)
US10085220B1
公開日期
2018-09-25
申請(qǐng)人
Sprint Spectrum L.P.(US KS Overland Park)
發(fā)明人
Sreekar Marupaduga; Ahmad Saleh
IPC分類
H04L12/50; H04W52/28; H04L12/801; H04W36/06; H04W88/08; H04W88/12
技術(shù)領(lǐng)域
rrh,rf,antenna,cell,channels,carrier,site,or,enodeb,carriers
地域: KS KS Overland Park

摘要

Disclosed is a method and system for compensating for excessive attenuation on an RF connection between a remote radio head (RRH) and an antenna of cell site. In an example configuration, in which first and second RF carriers of a cell site traverse different RF paths between respective RRHs and respective antenna, the second RF carrier may be subject to more attenuation than the first. Consequently, antenna transmission power of the second RF carrier may be below one or another threshold. For communication services to user equipment devices that involve both the first and second RF carriers, the diminished antenna transmission power of the second RF carrier may cause service degradation. In accordance with example embodiments, a controlling network entity may determine that the power is diminished, and responsively reallocate transmission power from an underutilized carrier to the second carrier, thereby boosting its transmission power and remediating service degradation.

說明書

As shown, the two example cell sites 112, 114 are separately located. That is, the cell sites are at different physical locations than each other. At a minimum, this may mean that the antenna configuration of each cell site is at a different physical location that the antenna configuration of the other cell site, even if a wireless coverage areas of one cell site may overlap in part with a wireless coverage area of the other cell site. By way of example, this arrangement could be provided on a campus or stadium, with cell sites established at various key locations throughout the campus or stadium in an effort to provide seamless wireless coverage. Considering a sports stadium for instance, cell sites could be set up at key locations in the perimeter of the stadium and in a parking area of the stadium.

FIG. 2 is next a simplified top view depiction of a representative cell site antenna configuration, for an example three-sector cell site where each sector comprises two antennas to facilitate 2T2R operation for instance. As shown in FIG. 2, the cell site antenna configuration is arranged to provide three sectors, A, B, and C. To facilitate this, the antenna configuration includes separately for each sector two respective antennas, such as dipole antennas for instance. Thus, as shown, the antenna configuration includes (i) two sector A antennas configured to provide an RF radiation pattern defining sector A, (ii) two sector B antennas configured to provide an RF radiation pattern defining sector B, (iii) two sector B antennas configured to provide an RF radiation pattern. In an alternative configuration, a different number of antennas could be provided per sector, or the antennas could be configured in another way.

權(quán)利要求

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