(Reuters) -Britain’s competition regulator said on Friday that Motorola Solutions’ monopoly for its emergency mobile radio communications services in the country led to high charges, boosting its profits, a claim the U.S-based company rejected. The UK’s Competition and Markets Authority (CMA) said that a provisional assessment, after a probe last year, found the lack of competition allowed Motorola to make around 160 million pounds ($180.3 million) in excess profits a year. Walkie-talkie maker Motorola rebuffed the CMA’s finding. “Motorola Solutions entirely rejects the CMA’s unfounded and inc…