Method for mutual interference performance test of dual-mode dual-standby mobile terminal

Abstract

The invention discloses a mutual interference performance test method for a double module and double set cell phone. The method is carried out in a microwave anechoic chamber and comprises the following steps: a radio frequency module 1 and a test instrument establish connecting link through a space coupling method and calibrate and compensate link loss; a radio frequency module 2 is turned off or stood-by to test the sensitivity of the radio frequency module 1; the radio frequency module 2 and the test instrument establish connecting link through a space coupling method and continue transmit the link with the largest power to test the sensitivity of the radio frequency module 1; when turn-off or stood-by, the sensitivity of the radio frequency module 2 is compared with the sensitivity of the radio frequency module 1 tested at the time of being turn-on, thus obtaining the interference of the radio frequency module 2 to the receiving sensitivity of the radio frequency module 1. Use of the method can quantificationally test the mutual interference between the two radio frequency modules of TD-SCDMA / GSM, TD-SCDMA / CDMA, CDMA / GMS and TD-SCDMA / PHS double module and double set cell phones, and conduct quantificational comparison the mutual interference degrees of different cell phones.

Description

technical field [0001] The invention relates to a method for testing mutual interference performance of dual-mode and dual-standby mobile terminals. Background technique [0002] In the cross-combination or transition period of the development of mobile communication technology, dual-mode mobile phones provide people with a choice to solve problems. As a 3G network independently developed by China, the TD-SCDMA (TimeDivision-Synchronous Code Division Multiple Access, hereinafter referred to as TD) network will start trial operation in the near future, but it has to face the problem of insufficient network coverage in the initial stage of construction. If this practical problem cannot be solved well, it will greatly affect the development of TD network users. At present, the best solution to this problem is to use other networks to supplement the TD network. In the environment where there is a TD network, users can use the superior performance of the 3G network. When there i...

AI Technical Summary

Problems solved by technology

The CDMA working frequency band is RX / TX: 869~894MHz / 824~849MHz, and the PHS working frequency band is 1900MHz~1920MHz. When dual standby is implemented in various dual-mode mobile phones, the signals transmitted by the two radio frequency modules of the mobile phone may become the receiver of the other party. blocking interference

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