Test transmitter, method and computer for testing a cellular mobile radio network
First Claim
1. A test transmitter (TS) for a cellular mobile radio network (CN) which transmits a test signal (BCCH) for reception by mobile stations (MS) located in the coverage area of the mobile radio network,whereinthe test transmitter (TS) transmits the test signal (BCCH) on a carrier frequency (f1) already assigned to a base station (BTS) of the mobile radio network (CN) for transmitting broadcast signals to the mobile stations (MS), and the test signal includes a first code distinguishing the mobile radio network from other mobile radio networks and a second code indicating a base station not yet registered in the mobile radio network.
2 Assignments
0 Petitions
Accused Products
Abstract
It is known to introduce into a cellular mobile radio network (CN) a test transmitter (TS) which transmits a test signal for reception by mobile stations located in the coverage area of the mobile radio network. A simple, computer-aided method for testing the mobile radio network is disclosed in which the test transmitter (TS) transmits the test signal on a carrier already assigned to a base station (BTS) of the mobile radio network (CN) for transmitting broadcast signals. Thus, each mobile station can receive the test signal in a simple manner. The receive level is transmitted to the base station serving the area in which the mobile station is located, and then passed on to a computer for analysis. The computer uses a handoff procedure to analyze the receive level of the test signal and the receive levels of the broadcast signals, and then, based on the results, indicates whether the location of the test transmitter (TS) is suitable for installing a new base station to provide additional radio resources in the mobile radio network.
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Citations
12 Claims
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1. A test transmitter (TS) for a cellular mobile radio network (CN) which transmits a test signal (BCCH) for reception by mobile stations (MS) located in the coverage area of the mobile radio network,
wherein the test transmitter (TS) transmits the test signal (BCCH) on a carrier frequency (f1) already assigned to a base station (BTS) of the mobile radio network (CN) for transmitting broadcast signals to the mobile stations (MS), and the test signal includes a first code distinguishing the mobile radio network from other mobile radio networks and a second code indicating a base station not yet registered in the mobile radio network.
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7. A test transmitter (TS) for a cellular mobile radio network (CN) which transmits a test signal (BCCH) for reception by mobile stations (MS) located in the coverage area of the mobile radio network,
wherein the coverage area of the cellular mobile radio network (CN) is divided into groups of cells, the test transmitter (TS) transmits the test signal (BCCH) from a test location within one of the groups of cells on the carrier frequency (f1) assigned to that base station (BTS), within the group of cells, whose broadcast signals have a low receive level (L1) at said test location, and the test transmitter transmits the test signal (BCCH) on the carrier frequency (f1) assigned to that base station (BTS) which does not transmit its broadcast signals during the transmission of the test signal.
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8. A method (100) of testing a cellular mobile radio network (CN) having a plurality of base stations, comprising the steps of
setting up a test transmitter at a test location in a coverage area of the mobile radio network, transmitting a test signal (BCCH) from the test transmitter (TS) for reception by mobile stations (MS) located in the coverage area, said test signal including a code designating said test transmitter as a base station not yet registered in the network, using a carrier frequency (f1) already assigned to a base station (BTS) of the mobile radio network (CN) for transmitting broadcast signals to mobile stations (MS), and evaluating in a computer how reception quality of said test signal by said mobile stations compares with reception quality of signals received by said mobile stations from said base stations.
Specification