A method for improving the transmission efficiency of a short data burst (SDB) in a CDMA telecommunications network by generating an SDB comprising a service reference identifier, a service option omit field indicating whether a service option identifier is to be included or omitted from the SDB, and...http://www.google.com.tw/patents/US6954445?utm_source=gb-gplus-share專利 US6954445 - Method for transmitting CDMA short data bursts
