I have been charged with "common assault by beating". I did not beat anybody up.
Where the charge of common assault alleges that any physical contact has been made by the accused with the complainant, the charge must read, "by beating". It is, effectively, old legal terminology to make it clear that the allegation of common assault is based upon physical contact, no matter how slight this may be. It does not necessarily mean that the charge of common assault alleges somebody has been beaten up.