A - 7
• Do perform all network functions of data communication within an enclosed network.
A.6.2 Cellular Specifications
Test conditions Meets the following conditions simultaneously:
• Number of the equipments supported by a single AP: ≤ 3
• Each equipment can communicate with the CMS.
• The weakest strength of the AP signal where the equipment is located is
not less than -65 dBm.
• The distance between the interfering devices and the equipment is
greater than 20 cm. A Wi-Fi interference (no greater than -85 dBm) in the
same channel and a Wi-Fi interference (no greater than -50 dBm) in an
adjacent-channel are presented synchronously. The interfering devices
include, but are not limited to, 2.4 G wireless devices, cellular mobile
networks, microwave ovens, interphones, cordless phones, and ESU
equipment. The interfering devices do not include Wi-Fi devices.
Network type 4G, 5G
Operating frequency ■ 4G module (EU):
◆ LTE FDD: B1/B3/B7/B8/B20/B28A
◆ LTE TDD: B38/B40/B41
◆ WCDMA: B1/B8
◆ GSM: B3/B8
■ 5G module:
◆ NR: n1/n2/n3/n5/n7/n8/n12/n20/n28/n38/n40/n41/n48/n66/
n71/n77/n78/n79
◆ LTE-FDD: B1/B2/B3/B4/B5/B7/B8/B9/B12/B13/B14/B17/B18/
B19/B20/B25/B26/B28/B29/B30/B32/B66/B71
◆ LTE-TDD: B34/B38/39/B40/B41/B42/B48
Standard/Modulation mode LTE, 5G Sub-6GHz
Alarm delay time of network
disconnection
The message and alarm delay of network disconnection between the
equipment and CMS: ≤ 14 s.
Pre-hospital network performance
System capacity, interference immunity
and network stability
Meets the following requirements:
• The total delay of data transmission from the equipment to the CMS: ≤
10 s.
• The data loss percentage of cellular communication over a 4-hour
period: ≤ 0.5%.
Test conditions Meets the following conditions simultaneously:
• With a distance greater than 2m from each other, three equipments
operate properly at the same time.
• Each equipment can communicate with the CMS.
• The weakest signal strength where the equipment is located is greater
than -95 dBm.
• The distance between the interfering devices and the equipment is
greater than 20 cm. The interfering devices include, but are not limited
to, 2.4 G wireless devices, cellular mobile networks, interphones, cordless
phones.
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