Method for measuring receive sensitivity of base station having multiple frequency allocations

• US 7,599,322 B2
• Filed: 03/06/2003
• Issued: 10/06/2009
• Est. Priority Date: 03/25/2002
• Status: Active Grant

• Current Assignee: KT Corporation
• Original Assignee: KT Corporation, MTI Incorporated
• Inventors: Lee, Sang Keun, Kim, Sang Kyun
• Primary Examiner(s): RAMPURIA, SHARAD K
• Application Number:
  US10/382,550
• Publication Number:
  US 20030179730A1
• Time in Patent Office: 2,406 Days
• Field of Search: 455423-425, 455 6711- 6714, 455/450, 455/561, 455/424, 455446-447, 370/329, 370/350, 375/356
• US Class Current: 370/327
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support

Abstract

Disclosed is a method for measuring receive sensitivity of a base station in order to test a plurality of FAs with only one test terminal. The method includes the steps of: performing synchronization of a primary FA and detecting a channel list at the test terminal; and sensing at least one FA from the base station according to the channel list at a controller, and controlling the test terminal to perform synchronization of each FA from a first FA of a first sector to the last FA of the last sector, one by one. Therefore, it has an advantage in that the receive sensitivity of all FAs (frequency allocations) can be measured by using only one test terminal, while testing receive sensitivity of a base station providing multiple FAs.

Claims

1. A method, comprising the steps of:

measuring receive sensitivity of a base station having multiple frequency allocation by measuring output of a mobile phone under test, wherein the mobile phone under test is set in an electromagnetic wave blocking case, the output of the mobile phone under test being connected to an RF coupler of the base station through an attenuator by cables, said measuring step including the steps of;

selecting only a single mobile terminal as the mobile phone under test so as to reduce, at a commencement of the method, a number of mobile terminals capable of being involved in the method to only one;

storing mobile identification numbers (MINs) corresponding to frequency allocations (FAs) of the base station in the mobile phone under test; and

testing each FA of the base station by setting up originating-calls from the mobile phone under test to each MIN stored in the mobile phone under test,

wherein a controller connected to the mobile phone under test changes a MIN of the mobile phone under test corresponding to a FA which the controller wants to test and originates a call to the changed MIN in order to test the FA of the base station which the controller wants to test.

2. The method as claimed in claim 1, further comprising a step of:

analyzing continuously code range of a forward link and testing a receive sensitivity when no traffic channel is assigned, so as to minimize a measurement drift of the receive sensitivity, which varies dynamically according to traffic quantity.

3. The method as claimed in claim 1, wherein the step of storing includes storing at lest two MINs on the mobile phone under test.

4. The method as claimed in claim 3, wherein the step of testing includes originating calls to MIN corresponding to an FA in accordance with a designation by a controller.

5. A method, comprising the steps of:

measuring receive sensitivity of a base station having multiple frequency allocation by measuring output of a mobile phone under test, wherein the mobile phone under test is set in an electromagnetic wave blocking case, the output of the mobile phone under test being connected to an RF coupler of the base station through an attenuator by cables, said measuring step includes the steps of;

selecting only a single mobile terminal as the mobile phone under test so as to reduce, at a commencement of the method, a number of mobile terminals capable of being involved in the method to only one;

performing synchronization of a primary FA and detecting a channel list at the mobile phone under test; and

sensing at least one FA from the base station according to the channel list at a controller, and controlling the mobile phone under test to perform synchronization of each FA from a first FA of a first sector to the last FA of the last sector, one by one by ignoring hash functions,

wherein the controller connected to the mobile phone under test forcibly controls originating-calls from the mobile phone under test in order to generate a control signal for frequency synchronization of a FA which the controller wants to test and sets up the forcibly controlled originating-calls from the mobile phone under test in order to test the FA which the controller wants to test.

6. The method as claimed in claim 5, wherein the base station is a simplex or duplex mode base station which supports a second generation wireless system (2G) and a CDMA 1X system (1X), and the mobile phone under test generates all FA signals for the 2G and 1X one by one by ignoring hash functions, according to the control signal of the controller, so as to measure receive sensitivity of all of the FAs.

7. The method as claimed in claim 5, further comprising a step of:

analyzing continuously a forward link Ec/Io test terminal and testing a receive sensitivity when traffic channels are assigned, so as to minimize a measurement drift of the receive sensitivity, which varies dynamically according to a number of traffic channels.