Sierra Wireless AirPrime MC7710, Технические характеристики продукта и руководство по дизайну для клиентов

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RF Specifications
Rev 6 Mar.13 Proprietary and Confidential - Contents subject to change 43
Note: GSM spurious emissions are most likely to have RSE issues, but in general, RSE
requirements must be met on all models with user-designed antennas.
Radiated sensitivity measurement
A wireless host device contains many noise sources that contribute to a reduction
in Rx performance.
To determine the extent of any receiver performance desensitization due to self-
generated noise in the host device, over-the-air (OTA) or radiated testing is
required. This testing can be performed by Sierra Wireless or you can use your
own OTA test chamber for in-house testing.
Sierra Wireless’ sensitivity testing and
desensitization investigation
Although AirPrime embedded modules are designed to meet carrier requirements
for receiver performance, they are still susceptible to various performance
inhibitors.
As part of the Engineering Services package, Sierra Wireless offers modem OTA
sensitivity testing and desensitization (desense) investigation. For more
information, contact your account manager or the Sales Desk (see
Contact
Information on page 4 ).
Note: Sierra Wireless has the capability to measure TIS (Total Isotropic Sensitivity) and
TRP (Total Radiated Power) according to CTIA's published test procedure.
Sensitivity vs. frequency
Sensitivity is defined as the input power level in dBm that produces a BER (Bit
Error Rate) of 2% (GSM) or 0.1% (UMTS). Sensitivity should be measured at all
GSM / UMTS frequencies across each band.
For LTE bands, sensitivity is defined as the RF level at which throughput is 95% of
maximum.
Supported frequencies
The MC7710 supports:
• Penta-band LTE — See Table 5-1 on page 44 .
• Dual-band WCDMA / HSDPA / HSUPA / HSPA+ / DC-HSPA+ — See Table 5-3 on
page 44 .
• Dual-band WCDMA receive diversity
• Tri-band GSM / GPRS / EGPRS — See Table 5-4 on page 45 .
• GPS