Quectel EC21-A - Page 22

LTE Standard Module Series
EC21_Series_Hardware_Design
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 Class E2 (27 dBm ±3 dB) for EGSM900 8-PSK
 Class E2 (26 dBm ±3 dB) for DCS1800 8-PSK
 Class E2 (26 dBm ±3 dB) for PCS1900 8-PSK
 Class 3 (24 dBm +1/-3 dB) for WCDMA bands
 Class 3 (23 dBm ±2 dB) for LTE-FDD bands
 Class 3 (23 dBm ±2 dB) for LTE-TDD bands
LTE Features

Support up to non-CA Cat 1 FDD and TDD

Support 1.4/3/5/10/15/20 MHz RF bandwidth

Support MIMO in DL direction

LTE-FDD: Max. 10 Mbps (DL)/Max. 5 Mbps (UL)

LTE-TDD: Max. 8.96 Mbps (DL)/Max. 3.1 Mbps (UL)
UMTS Features
 Support 3GPP Rel-8 DC-HSDPA, HSPA+, HSDPA, HSUPA and
WCDMA
 Support QPSK, 16QAM and 64QAM modulation
 DC-HSDPA: Max. 42 Mbps (DL)
 HSUPA: Max. 5.76 Mbps (UL)
 WCDMA: Max. 384 kbps (DL)/Max. 384 kbps (UL)
GSM Features
GPRS:
 Support GPRS multi-slot class 33 (33 by default)
 Coding scheme: CS-1, CS-2, CS-3 and CS-4
 Max. 107 kbps (DL)/Max. 85.6 kbps (UL)
EDGE:
 Support EDGE multi-slot class 33 (33 by default)
 Support GMSK and 8-PSK for different MCS (Modulation and
Coding Scheme)
 Downlink coding schemes: MCS 1-9
 Uplink coding schemes: MCS 1-9
 Max. 296 kbps (DL)/Max. 236.8 kbps (UL)
Internet Protocol
Features

Support TCP/UDP/PPP/FTP/FTPS/HTTP/HTTPS/NTP/PING/QMI/
NITZ/SMTP/SSL/MQTT/CMUX/SMTPS/MMS*/FILE* protocols

Support PAP and CHAP for PPP connections
SMS
 Text and PDU mode
 Point-to-point MO and MT
 SMS cell broadcast
 SMS storage: ME by default
(U)SIM Interface Supports USIM/SIM card: 1.8 V, 3.0 V
Audio Features
 Support one digital audio interface: PCM interface
 GSM: HR/FR/EFR/AMR/AMR-WB
 WCDMA: AMR/AMR-WB
 LTE: AMR/AMR-WB
 Support echo cancellation and noise suppression
PCM Interface

Used for audio function with external codec

Supports 16-bit linear data format