System and method for measuring power and bit error rate on the up-link and down-link simultaneously

• US 6,266,527 B1
• Filed: 04/28/1998
• Issued: 07/24/2001
• Est. Priority Date: 04/28/1998
• Status: Expired due to Term

• Current Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Original Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Inventors: Mintz, Yaron
• Primary Examiner(s): Nguyen, Lee
• Assistant Examiner(s): Nguyen, Simon
• Application Number:
  US09/067,928
• Time in Patent Office: 1,183 Days
• Field of Search: 455/423, 455/226.2, 455/67.1, 455/161.3, 455/67.3, 455/522, 455/446, 455/447, 455/448, 455/449, 455/67.4, 455/67.7, 379/21, 379/1, 370/252
• US Class Current: 455/423
• CPC Class Codes: H04B 17/309 Measuring or estimating channel quality parameters

Abstract

A telecommunications system and method is disclosed for measuring the bit error rate (BER) and power on up-link and down-link channels substantially simultaneously from a mobile terminal to enable real time analysis in the field. This can be accomplished by including an application within a memory in the mobile terminal, which can initiate Link Balance (LB) start and stop commands sent from the mobile terminal to the base station. The LB start command is sent from the MS to the base station, instructing the base station to measure the power and BER on the up-link and forward these measurements to the mobile terminal. Simultaneously, the mobile terminal can measure the power and BER on the down-link and determine the current location. The up-link measurements, down-link measurements, and location information can then be displayed to the technician in real time, either on the mobile terminal itself or on a laptop computer.

Claims

1. A telecommunications system for measuring the power and bit error rate on an up-link channel and a down-link channel simultaneously, said telecommunications system comprising:

a base station adapted to measure the power and bit error rate associated with said up-link channel in response to receiving a link balance start command;

a mobile terminal in wireless communication with said base station, said mobile terminal being adapted to send said link balance start command, receive the measured power and bit error rate associated with said up-link channel from said base station in response to sending said link balance start command and measure the power and bit error rate associated with said down-link channel substantially simultaneously to receiving the measured power and bit error rate associated with said up-link channel; and

a memory within said mobile terminal for storing the power and bit error rate associated with said up-link channel and said down-link channel;

wherein said base station sends the power and bit error rate associated with said up-link channel to said mobile terminal repeatedly until said mobile terminal sends a link balance stop command to said base station.

2. The telecommunications system of claim 1, wherein said mobile terminal stores, within said memory, location information associated with the location of said mobile terminal within the area served by said base station.

3. The telecommunications system of claim 2, wherein the power and bit error rate associated with said up-link channel and said down-link channel and said location information are displayed on a display on said mobile terminal.

4. The telecommunications system of claim 2, wherein said memory is a Subscriber Identity Module.

5. The telecommunications system of claim 1, wherein said base station is a Base Transceiver Station.

6. A telecommunications system for measuring the power and bit error rate on an up-link channel and a down-link channel simultaneously, said telecommunications system comprising:

a base station adapted to measure the power and bit error rate associated with said up-link channel in response to receiving a link balance start command;

a mobile terminal in wireless communication with said base station, said mobile terminal being adapted to send said link balance start command, receive the measured power and bit error rate associated with said up-link channel from said base station in response to sending said link balance start command and measure the power and bit error rate associated with said down-link channel substantially simultaneously to receiving the measured power and bit error rate associated with said up-link channel; and

a computer connected to said mobile terminal, said computer instructing said mobile terminal to send said link balance start command, said computer receiving the power and bit error rate associated with said up-link channel and said down-link channel via said mobile terminal;

wherein said base station sends the power and bit error rate associated with said up-link channel to said computer via said mobile terminal repeatedly until said computer instructs said mobile terminal to send a link balance stop command to said base station.

7. The telecommunications system of claim 6, wherein said computer is a laptop computer.

8. The telecommunications system of claim 6, wherein said computer has a memory therein for storing the power and bit error rate associated with said up-link channel and said down-link channel.

9. The telecommunications system of claim 8, wherein said computer stores, within said memory, location information associated with the location of said mobile terminal within the area served by said base station.

10. The telecommunications system of claim 9, wherein the power and bit error rate associated with said up-link channel and said down-link channel and said location information are displayed on a display on said computer.

11. A method for measuring the power and bit error rate on an up-link channel and a down-link channel simultaneously, said method comprising the steps of:

sending, by a mobile terminal in wireless communication with a base station, a link balance start command to said base station;

measuring, by said base station, the power and bit error rate associated with said up-link channel;

sending, by said base station, the measured power and bit error rate associated with said up-link channel to said mobile terminal;

substantially simultaneous to said mobile terminal receiving the measured power and bit error rate associated with said up-link channel, measuring, by said mobile terminal, the power and bit error rate associated with said down-link channel;

storing, by said mobile terminal, the power and bit error rate associated with said up-link channel and said down-link channel within a memory within said mobile terminal;

sending, by said mobile terminal, a link balance stop command to said base station; and

discontinuing, by said base station, the sending of the power and bit error rate associated with said up-link channel to said mobile terminal.

12. The method of claim 11, wherein said mobile terminal stores, within said memory, location information associated with the location of said mobile terminal within the area served by said base station.

13. The method of claim 12, further comprising, after said step of storing, the step of:

displaying, on a display on said mobile terminal, the power and bit error rate associated with said up-link channel and said down-link channel and said location information.

14. The method of claim 12, wherein said memory is a Subscriber Identity Module.

15. The method of claim 11, wherein said base station is a Base Transceiver Station.

16. A method for measuring the power and bit error rate on an up-link channel and a down-link channel simultaneously, said method comprising the steps of:

instructing, by a computer connected to a mobile terminal, said mobile terminal to send said link balance start command to a base station in wireless communication with said mobile terminal;

measuring, by said base station, the power and bit error rate associated with said up-link channel;

sending the power and bit error rate associated with said up-link channel from said base station to said computer via said mobile terminal;

substantially simultaneous to said mobile terminal receiving the measured power and bit error rate associated with said up-link channel, measuring, by said mobile terminal, the power and bit error rate associated with said down-link channel;

sending, by said computer, via said mobile terminal, a link balance stop command to said base station; and

discontinuing, by said base station, the sending of the power and bit error rate associated with said up-link channel to said computer via said mobile terminal.

17. The method of claim 16, wherein said computer is a laptop computer.

18. The method of claim 16, further comprising, after said step of measuring, the step of:

storing, within a memory within said computer, the power and bit error rate associated with said up-link channel and said down-link channel.

19. The method of claim 18, wherein said computer stores, within said memory, location information associated with the location of said mobile terminal within the area served by said base station.

20. The method of claim 19, further comprising, after said step of storing, the step of:

displaying, on a display on said computer, the power and bit error rate associated with said up-link channel and said down-link channel and said location information.