METHOD OF BLOCKING COMMUNICATIONS
First Claim
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1. A method of blocking communications used in a communication-blocking unit for preventing a base station from establishing communications with a mobile subscriber comprising:
- (a) receiving a first BCCH signal emitted by the base station and reading system information from the BCCH signal;
(b) sending a second BCCH signal in a specific area according to the system information;
(c) collecting an identity of the mobile subscriber in the specific area; and
(d) receiving a CCCH signal, and if the CCCH signal has the identity, sending a blocking RA during a predetermined time.
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Abstract
BCCH signals are emitted from a communication-blocking device with higher power according to system data got from base stations. TMSI of mobile subscribers is collected. Paging of the mobile subscriber is monitored. When it is determined that a mobile subscriber is to receive a call, the communication-blocking device sends blocking RA in all time slots, making the mobile subscriber fail to get the call.
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Citations
20 Claims
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1. A method of blocking communications used in a communication-blocking unit for preventing a base station from establishing communications with a mobile subscriber comprising:
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(a) receiving a first BCCH signal emitted by the base station and reading system information from the BCCH signal;
(b) sending a second BCCH signal in a specific area according to the system information;
(c) collecting an identity of the mobile subscriber in the specific area; and
(d) receiving a CCCH signal, and if the CCCH signal has the identity, sending a blocking RA during a predetermined time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A communication-blocking device for preventing a base station from establishing communications with a mobile subscriber, the base station emitting a first BCCH signal and a CCCH signal, the communication-blocking device comprising:
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a receiver for receiving the first BCCH signal and the CCCH signal;
a transmitter for sending a blocking signal;
a list storage module for storing a blocking list; and
a processing unit;
wherein when the mobile subscriber sends a TMSI to the base station, the processing unit stores the TMSI in the blocking list, and when the CCCH signal has the TMSI, the transmitter sends the blocking signal during a predetermined time. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification