Content for TS 37.462 Word version: 17.0.0
1 Scope p. 5
The present document specifies the signalling transport related to RETAP and TMAAP signalling to be used across the Iuant interface for UTRAN, E-UTRAN and NG-RAN. In this specification UTRAN, E-UTRAN and NG-RAN are denoted as "RAN", whereas the corresponding network entities Node B, eNB, en-gNB and NG-RAN node are denoted as "RAN Node". The logical Iuant interface is an interface internal to the RAN Node and defined to reside between the implementation specific O&M function and the RET antennas and between the implementation specific O&M function and the TMA control unit function.
2 References p. 5
The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1] Void
[2]
ISO/IEC 13239 (3rd Edition, 2002-07): "Information Technology - Telecommunications and information exchange between systems - High-level data link control (HDLC) procedures".
[3]
TS 37.461: "Iuant Interface: Layer 1".
[4]
Antenna Interface Standards Group: "Control Interface for Antenna Line Devices", Standard No. AISG v2.0
3 Definitions and abbreviations p. 5
3.1 Definitions p. 5
For the purposes of the present document, the following terms and definitions apply.
ASCII character:
A character forming part of the International Reference Version of the 7-bit character set defined in ISO/IEC 646:1991 represented as one octet
Octet:
8 bits as used in ISO/IEC 13239 [2]
Device type:
One octet identifying the type of a device
Unique ID:
A concatenation of the vendor code (2 octets) and a 1 to 17 octets long unit specific code (e.g. serial number) exclusive for each secondary device from the vendor to whom the vendor code is assigned. The vendor code is placed in the left-most (most significant) position of the unique ID. The vendor to whom the vendor code is assigned is responsible for ensuring the uniqueness of the unique ID for each device.
Vendor code:
A unique ASCII 2-character code assigned to each vendor in AISG v2.0 [4].
Reset:
A process by which the device is put in the state it reaches after a completed power-up
SecondaryPayloadTransmitLength:
The maximum length of the INFO field of an HDLC I-frame in the direction secondary device to primary device.
SecondaryPayloadReceiveLength:
The maximum length of the INFO field of an HDLC I-frame in the direction primary device to secondary device.
3.2 Abbreviations p. 6
For the purposes of the present document, the following abbreviations apply:
ADDR
Address
ACK
Acknowledgment
CRC
Cyclic Redundancy Check
DISC
Disconnect (frame type)
DM
Disconnected Mode (frame type)
FCS
Frame Checking Sequence
FI
Format Identifier
FRMR
Frame Reject (frame type)
GI
Group Identifier
GL
Group Length
HDLC
High-Level Data Link Control
I
Information (frame type)
ID
Identifier
INFO
Information (field name)
NAK
Non Acknowledgment
NRM
Normal Response Mode
P/F
Poll/Final
PI
Parameter Identifier
PL
Parameter Length
PV
Parameter Value
RET
Remote Electrical Tilting
RETAP
Remote Electrical Tilting Application Part
RNR
Receive Not Ready (frame type)
RR
Receive Ready (frame type)
SNRM
Set Normal Response Mode (frame type)
TMA
Tower Mounted Amplifier
TMAAP
Tower Mounted Amplifier Application Part
TWA
Two Way Alternate
UA
Unnumbered Acknowledgement (frame type)
UNC
Unbalanced Operation Normal Response Mode Class
XID
Exchange ID (frame type)
