Method and apparatus for RSSI measurement in a digital radio system

Claim 2

A radio communication apparatus according to claim 1, characterized in that said first and second measuring means (20) (4b) (4h) each start the measurement of RSSI information at the request of said base station (BS1-BS3), and said correction means (20) corrects the RSSI information measurement values obtained from said first and second measuring means (20) (4b) (4h) and reports the corrected first and second measurement data items to said base station (BS1-BS3).

Claim 3

A radio communication apparatus according to claim 1, characterized in that said first and second measuring means (20) (4b) (4h) each start the measurement of RSSI information independently, and said correction means (20) corrects the RSSI information measurement values obtained from said first and second measuring means (20) (4b) (4h), stores the corrected first and second measurement data items, and reads these first and second measurement data items at the request of said base station (BS1-BS3) and then reports these data items to said base station (BS1-BS3).

Claim 4

A radio communication apparatus according to claim 1, 2, or 3, characterized in that said first measuring means (20) (4b) measures the RSSI information of the assigned radio channel a plurality of times and thereby obtains the measurement values, and said correction means (20) (4h) corrects, on the basis of said first correction table (22), the plurality of RSSI information measurement values obtained by the plurality of measurements at said first measuring means (20) (4b) and takes the average of the corrected values and then determines the average to be the first measurement data item.

Claim 5

A radio communication apparatus according to claim 1, 2, or 3, characterized in that said second measuring means (20) (4h) measures the RSSI information of each of the other radio channels a plurality of times and thereby obtains the measurement values of each of the other channels, and said correction means (20) corrects, on the basis of said second correction table (22), the plurality of RSSI information measurement values obtained by the plurality of measurements at said second measuring means (20) (4h) and takes the average of the corrected values and then determines the average to be the second measurement data item.

Claim 6

In a mobile radio communication system that assign a radio channel by a TDMA scheme to a radio communication apparatus (MS1-MS4) intending to communicate and enables said radio communication apparatus (MS1-MS4) to get into radio communication with a base station (BS1-BS3) via the assigned radio channel, said radio communication apparatus (MS1-MS4) comprising: automatic gain control means (6) (31) for performing an operation to keep constant the reception signal level of the radio signal sent from said base station (BS1-BS3); control means (20) for bringing said automatic gain control means (6) (31) into an operative state in a first period corresponding to said assigned radio channel and into an inoperative state in a second period corresponding to the other radio channels; first measuring means (20) (4b) for measuring the RSSI information of said assigned radio channel in said first period; second measuring means (20) (4h) for measuring the RSSI information of the other radio channels in said second period; a first and second correction tables (22) provided so as to correspond to the reception conditions for said automatic gain control means (6) (31) being set in an operative state and the reception conditions for said automatic gain control means (6) (31) being set in an inoperative state, respectively; and correction means (20) for correcting the RSSI information measurement values obtained from said first measuring means (20) (4b) on the basis of said first correction table (22) and the RSSI information measurement values obtained from said second measuring means (20) (4h) on the basis of said second correction table (22).

Claim 7

In a mobile radio communication system that assign a radio channel by the selective use of an FDMA scheme and a TDMA scheme to a radio communication apparatus (MS1-MS4) intending to communicate and enables said radio communication apparatus (MS1-MS4) to get into radio communication with a base station (BS1-BS3) in an analog or digital mode via the assigned radio channel, said radio communication apparatus (MS1-MS4) comprising: first measuring means (20) (4b) for measuring the RSSI information of the digital radio channel in a first period corresponding to the digital radio channel assigned by said TDMA scheme; second measuring means (20) (4h) for measuring the RSSI information of the other digital radio channels in a second period excluding said first period; third measuring means (20) for measuring the RSSI information of the digital radio channel in a third period corresponding to the analog radio channel assigned by said FDMA scheme; a first, second, and third correction tables (22) provided so as to correspond to the reception conditions in said first, second, and third periods, respectively; and correction means (20) for correcting the RSSI information measurement values obtained from said first, second, and third measuring means (20) on the basis of said first, second, and third correction tables (22), respectively.