Quectel BC26 - Page 27

NB-IoT Module Series
BC26 AT Commands Manual
BC26_AT_Commands_Manual 27 / 73
<PDP_type> String type; a string parameter which specifies the type of packet data protocol.
IP Internet Protocol (IETF STD 5)
IPv6 Internet Protocol, version 6 (IETF RFC 2460)
IPv4v6 Virtual <PDP_type> introduced to handle dual IP stack UE capability
Non-IP Transfer of Non-IP data to external packet data Network
<APN> String type; a logical name that is used to select the GGSN or the external packet data
network. If the value is null or omitted, then the subscription value will be requested.
<PDP_addr> String type; a string parameter that identifies the UE in the address space applicable to the
PDP. If the value is null or omitted, then a value may be provided by the TE during the PDP
startup procedure or, failing that, a dynamic address will be requested. The read form of the
command will continue to return the null string even if an address has been allocated during
the PDP startup procedure. The allocated address may be read using the +CGPADDR
command.
<d_comp> Integer type; controls PDP data compression
0 Off
1 On (manufacturer preferred compression)
2 V.42bis
<h_comp> Integer type; controls PDP header compression
0 Off (default if value is omitted)
1 On (manufacturer preferred compression)
2 RFC 1144 (applicable for SNDCP only)
3 RFC 2507
4 RFC 3095[ROHC] (applicable for PDCP only)
<IPv4AddrAlloc> Integer type; controls how the MT/TA requests to get the IPv4 address information
0 IPv4 address allocation through NAS signalling
1 IPv4 address allocated through DHCP
<request_type> Integer type; indicates the type of PDP context activation request for the PDP
context. Please refer to 3GPP TS 24.301 (subclause 6.5.1.2) and 3GPP TS
24.008 (subclause 10.5.6.17). If the initial PDP context is supported it is not
allowed to assign <cid>=0 for emergency bearer services. According to 3GPP TS
24.008 (subclause 4.2.4.2.2 and subclause 4.2.5.1.4) and 3GPP TS 24.301
(subclause 5.2.2.3.3 and subclause 5.2.3.2.2), a separate PDP context must be
established for emergency bearer services.
If the PDP context for emergency bearer services is the only activated context,
only emergency calls are allowed, refer to 3GPP TS 23.401 subclause 4.3.12.9.
0 PDP context is for new PDP context establishment or for handover from
a non-3GPP access network (how the MT decides whether the PDP
context is for new PDP context establishment or for handover is
implementation specific).
1 PDP context is for emergency bearer services
2 PDP context is for new PDP context establishment
3 PDP context is for handover from a non-3GPP access network
<P-CSCF_discovery>Integer type; influences how the MT/TA requests to get the P-CSCF address, refer
to 3GPP TS 24.229 [89] annex B and annex L.