Patent ID: 7869370

Claim:
A portable Internet analyzer having a handover test function, comprising: a transmission unit for encoding various DownLink (DL) signals of a serving Base Station (BS) or/and a target BS using a preamble index, including a cell Identification (ID) assigned in advance in a form of a unique code in association with a handover test, synthesizing the encoded signals, and sending the synthesized signals to a Portable Subscriber Station (PSS); a reception unit for receiving various UpLink (UL) signals from the PSS in association with the handover test, and decoding the UL signals using the cell Parameters of the serving BS or/and target BS; a switching unit for selectively switching the transmission unit and the reception unit to the PSS for each of DL and UL sections of each frame; and a central control unit for generating various Media Access Control (MAC) messages to be sent to the PSS through the transmission unit in association with the handover test, analyzing handover test-related MAC messages received through the reception unit, and controlling switching operation of the switching unit, wherein the transmission unit comprises a serving BS signal generation unit and target BS signal generation unit for implementing a physical layer algorithm, which includes encoding using the preamble indices and is performed in the serving BS and the target BS in association with the handover test, power/frequency adjustment units for separately adjusting power and frequency of the various DL signals output from the serving BS signal generation unit and the target BS signal generation unit, a mixer for mixing the DL signals output from respective power/frequency adjustment units, and a transmission control unit for implementing an algorithm of a MAC layer, which is a relatively upper layer, generating a MAC Protocol Data Unit (MAC PDU), generating an Uplink Channel Descriptor (UCD)/Downlink Channel Descriptor (DCD), including a UL cell ID, and other required messages, transferring the messages to the serving BS signal generation unit and the target BS signal generation unit, and controlling respective power/frequency adjustment units.