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

專利號
US10085220B1
公開日期
2018-09-25
申請人
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

In practice, the Carrier 1 will suffer some attenuation due to transmission characteristics of the connection. However, all direct connections between an RRH and an antenna system are subject to this type of characteristic attenuation. Further, although the characteristic attenuation of a direct connection may depend on the carrier frequency, the differences due to frequency dependence will typically be small compared with attenuation due to insertion loss caused by one or more combiners in the RF path. Thus, for the purposes of the present discussion, characteristic attenuation is neglected. Also, for the sake of brevity in FIGS. 7A and 7B, no other channels are shown on any of the connections between the RRH 732 and the antenna system 736. It will be appreciated that all or some of the other ports on the RRH 732 may be carrying active RF channels. In particular, the total amount of transmission power of all ports and channels on the RRH 732 may be at full capacity.

權(quán)利要求

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