3 Definitions, abbreviations, frequency bands and channels
3GPP51.021Base Station System (BSS) equipment specificationRadio aspectsRelease 17TS
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply.
8-PSK: modulation type as defined 3GPP TS 45.004 clause 3.
Carrier Frequency: centre of the ARFCN under test.
GMSK: modulation type as defined by 3GPP TS 45.004 clause 2.
GSM: unless otherwise specified, references to GSM include GSM 400, GSM 700, T-GSM 810, GSM 850, GSM 900, ER-GSM 900, DCS 1800, PCS 1900, MXM 850 and MXM 1900.
GSM 900: unless otherwise specified, references to GSM 900 include P-GSM, E-GSM and R-GSM.
BSS: in the present document, the term BSS (or base station subsystem) applies to both a BTS and integrated BSS. If a separate BSC is required to perform tests on a BTS, the BSC may be regarded as test equipment and the environmental conditions of the BSC need not be controlled.
pico-BTS: as defined in 3GPP TS 45.005. In the present document, this also includes a BSS which incorporates a pico‑BTS.
micro‑BTS: as defined in 3GPP TS 05.05 and 3GPP TS 45.005. In the present document, this also includes a BSS which incorporates a micro-BTS.
Multicarrier BTS: defined as BTS, characterized by the ability to, in addition to single carrier operation, process two or more carriers in common active components simultaneously.
Wide Area (WA) multicarrier BTS: defined as a class of multicarrier BTS, characterized by requirements derived from macro cell scenarios. The class has either multicarrier transmitter only, or both multicarrier transmitter and receiver.
Medium Range (MR) multicarrier BTS: defined as a class of multicarrier BTS, characterized by requirements derived from micro cell scenarios. The class has both multicarrier transmitter and multicarrier receiver.
Local Area (LA) multicarrier BTS: defined as a class of multicarrier BTS, characterized by requirements derived from pico cell scenarios. The class has both multicarrier transmitter and multicarrier receiver.
MXM: mixed Mode system. Mixed-mode is defined as a network that deploys both 30 kHz RF carriers and 200 kHz RF carriers in geographic regions where the Federal Communications Commission (FCC) or similar regulations are applied. In the present document MXM 850 and MXM 1900 are defined.
normal BTS: any BTS or BSS as defined by 3GPP TS 05.05 and 3GPP TS 45.005 which is not a micro‑BTS, pico-BTS or multicarrier BTS.
BSSTE: base Station System Test Equipment; see annex B.
manufacturer: in the present document, a reference to a manufacturer shall also apply to an agent of the manufacturer.
T-GSM 810: Trunking GSM 810 band. For T-GSM 810 the requirements for GSM 900 shall apply, apart for those parameters for which a separate requirement exists.
P‑GSM: primary GSM 900 band.
E‑GSM: extended GSM 900 band (includes P‑GSM band).
R‑GSM: Railways GSM 900 band (includes P‑GSM band and E‑GSM band).
ER-GSM 900: extended Railway GSM 900 band (includes R-GSM band).
GSM 400: unless otherwise specified, references to GSM 400 include GSM 450 and GSM 480 band.
GSM 700: unless otherwise specified, references to GSM 700 include GSM 710 and GSM 750 band.
GSM-R: GSM Railway communication, operated in the R-GSM or ER-GSM band, respectively.
Relevant TX band (or relevant transmit band): transmit band defined in subclause 3.3.1 for the frequency band of BTS declared by the manufacturer.
Relevant RX band (or relevant receive band): receive band defined in subclause 3.3.1 for the frequency band of BTS declared by the manufacturer.
Operating band: transmit and receive operating bands together comprise the frequency band supported by the BSS; (see subclause 4.2).
Base Station RF bandwidth: The instantaneous bandwidth in which a multicarrier BTS transceiver transmits or transmits and receives multiple carriers simultaneously.
Maximum Base Station RF bandwidth: The maximum bandwidth in which a multicarrier BTS transceiver transmits or transmits and receives multiple carriers simultaneously.
Maximum Transmit Filter bandwidth: The maximum bandwidth of the duplexer or the transmit filter used in a multicarrier BTS when transmitting carriers simultaneously.
Circuit switched logical channels: all the standard GSM logical channels, including traffic channels (TCH), common control channels (RACH) and dedicated control channels (SDCCH, SACCH).
Packet switched logical channels: all the General Packet Radio Services (GPRS) packet data logical channels, including packet traffic channels (PDTCH and PACCH) and packet common control channels (PRACH).
GPRS: any subset of the packet traffic channels PDTCH/CS-1 to CS-4 and related control channels.
EGPRS: any subset of the packet traffic channels PDTCH/MCS-1 to MCS-9 and related control channels.
ECSD: any subset of the E-TCH traffic channels and related control channels.
EGPRS2-A: packet traffic channels utilizing any subset of the packet traffic channels MCS-1 to 6 and PDTCH/UAS-7 to UAS-11 in uplink, together with MCS-1 to 4 and PDTCH/DAS-5 to DAS-12 in downlink, and related control channels. In addition, MCS-7 and MCS-8 may be used in downlink when either the USF or the PAN or both are addressed to one or more EGPRS mobile stations.
EGPRS2-B: packet traffic channels utilizing any subset of the packet traffic channels MCS-1 to 4 and PDTCH/UBS-5 to UBS-12 in uplink, together with MCS-1 to 4 and PDTCH/DBS-5 to DBS-12 in downlink, and related control channels. In addition, MCS-6 to MCS-9, DAS-5, DAS-6, DAS-8, DAS-9, DAS-10 pad, DAS-11, and DAS-12pad may be used in downlink under the conditions specified in 3GPP TS 44.060.
EGPRS2: Any of EGPRS2-A and EGPRS2-B
16-QAM: modulation type as defined 3GPP TS 45.004 clause 4 for EGPRS2-A and clause 5 for EGRPS2-B.
32-QAM: modulation type as defined 3GPP TS 45.004 clause 4 for EGPRS2-A and clause 5 for EGRPS2-B.
QPSK: modulation type as defined 3GPP TS 45.004 clause 5, used in EGPRS2-B.
Blind Physical Layer Transmissions: see 3GPP TS 43.064.
Coverage Class: see 3GPP TS 43.064.
EC-GSM-IoT: Extended Coverage GSM for Internet of Things.
EC operation: See 3GPP TS 43.064.
EC-channels: Logical channels specifically defined for EC operation, see 3GPP TS 45.002.
Overlaid CDMA: Multiplexing scheme where up to four mobile stations can be assigned orthogonal codes to simultaneously transmit on the same physical channel in the uplink, see 3GPP TS 45.002. Used in EC operation.
Overlaid CDMA subchannel: One out of up to four logical channels multiplexed on the same physical channels through the use of orthogonal Overlaid CDMA codes.
VAMOS mode: as defined in 3GPP TS 45.001 clause 13.1.
AQPSK: modulation type as defined in 3GPP TS 45.004 clause 6.
VAMOS sub-channel: as defined in 3GPP TS 45.001 clause 13.1.
SCPIR_UL: Subchannel power imbalance ratio on uplink, as defined in 3GPP TS 45.005 clause 1.3.
SCPIR_DL: identical to SCPIR as defined in 3GPP TS 45.004 clause 6.
Minimum carrier frequency spacing: minimum spacing between the centre frequencies of simultaneously transmitted or received GSM carriers of a BTS belonging to a multicarrier BTS class. The minimum carrier frequency spacing is 600 kHz.
Sub-block: This is one contiguous allocated block of spectrum for use by the same Base Station. There may be multiple instances of sub-blocks within an RF bandwidth.
Sub-block bandwidth: The bandwidth of one sub-block.
Sub-block gap: A frequency gap between two consecutive sub-blocks within an RF bandwidth, where the RF requirements in the gap are based on co-existence for un-coordinated operation.
Enclosure port: physical boundary of the apparatus through which electromagnetic fields may radiate or impinge.
Port: particular interface, of the specified equipment (apparatus), with the electromagnetic environment
Radio digital unit: equipment which contains base band and functionality for controlling radio unit
Radio equipment: equipment which contains radio digital unit and radio unit
Radio unit: equipment which contains transmitter and receiver
Equivalent combined power: as defined in 3GPP TS 45.005 [22] Annex T.
Phase and amplitude coherency: see 3GPP TS 45.005 [22] and 3GPP TS 45.004 [21].
3.2 Abbreviations
Unless otherwise stated, abbreviations used in the present document shall have the meaning given in 3GPP TR 21.905.
AQPSK Adaptive Quadrature Phase Shift Keying
B "Bottom"; the lowest frequency on which a test is performed, i.e. within the operating RX and TX band respectively
BTTI Basic Transmission Time Interval
CC Coverage Class
EDAB Extended Dual slot Access Burst
ESAB Extended Synchronization Access Burst
FANR Fast Ack/Nack Reporting
LA Local Area
M "Middle"; a frequency in the middle portion of the operating band of the BSS on which a test is performed
MR Medium Range
PAN Piggy-backed Ack/Nack message
RTTI Reduced Transmission Time Interval
SCPIR Sub-Channel Power Imbalance Ratio
SCPIR_UL Sub-Channel Power Imbalance Ratio on Uplink
SCPIR_DL Sub-Channel Power Imbalance Ratio on Downlink
SFH Slow Frequency Hopping
T "Top"; the highest frequency on which a test is performed, i.e. within the operating RX and TX band respectively
TRX Transceiver
VAMOS Voice services over Adaptive Multi-user Channels on One Slot
VUTS VAMOS Uplink Test Scenario
WA Wide Area
3.3 Frequency bands and channels
3.3.1 Frequency bands
The frequency bands for the Base Station System are given in table 3.3-1.
Table 3.3-1: Frequency bands for GSM Base Station Systems
|
TX: |
RX: |
|
|
P‑GSM 900 |
935 MHz to 960 MHz |
890 MHz to 915 MHz |
|
DCS 1800 |
1 805 MHz to1 880 MHz |
1 710 MHz to 1 785 MHz |
|
E‑GSM 900 |
925 MHz to 960 MHz |
880 MHz to 915 MHz |
|
R‑GSM 900 |
921 MHz to 960 MHz |
876 MHz to 915 MHz |
|
ER-GSM 900 |
918 MHz to 960 MHz |
873 MHz to 915 MHz |
|
GSM 450 |
460,4 MHz to 467,6 MHz |
450,4 MHz to 457,6 MHz |
|
GSM 480 |
488,8 MHz to 496 MHz |
478.8 MHz to 486 MHz |
|
GSM 850 and MXM 850 |
869 MHz to 894 MHz |
824 MHz to 849 MHz |
|
PCS 1900 and MXM 1900 |
1 930 MHz to 1 990 MHz |
1 850 MHz to 1 910 MHz |
|
GSM 710 |
728 MHz to 746 MHz |
698 MHz to 716 MHz |
|
GSM 750 |
747 MHz to 763 MHz |
777 MHz to 793 MHz |
|
T-GSM 810 |
851 MHz to 866 MHz |
806 MHz to 821 MHz |
NOTE: It is up to the operator to choose any subset of these bands (or the complete band) on a location basis within a frequency band assigned to the operator by the authority responsible for frequency management issues.
EC operation and requirements are defined for GSM 850, E-GSM 900, DCS 1800 and PCS 1900 only.
3.3.2 Channels and channel numbering
The channel numbers (ARFCN) for the carrier frequencies (RF channels) within the frequency bands defined above (as defined in 3GPP TS 45.005, are given in table 3.3-2. Fl(n) is the frequency of the centre of the RF channel n in the lower band (=RX) and Fu(n) the corresponding frequency in the upper band (=TX).
Table 3.3-2: Channel Numbering: Frequencies are in MHz
|
P‑GSM 900 |
Fl(n)=890+0,2*n |
1<=n<=124 |
Fu(n)=Fl(n)+45 |
|
E‑GSM 900 |
Fl(n)=890+0,2*n FI(n)=890+0,2*(n‑1 024) |
0 <=n<=124 975<=n<=1023 |
Fu(n)=Fl(n)+45 |
|
R‑GSM 900 |
Fl(n)=890+0,2*n FI(n)=890+0,2*(n‑1 024) |
0 <=n<=124 955<=n<=1023 |
Fu(n)=Fl(n)+45 |
|
ER-GSM 900 |
Fl(n) = 890 + 0.2*n Fl(n) = 890 + 0.2*(n-1024) |
0 ≤ n ≤ 124 940 ≤ n ≤ 1023 |
Fu(n) = Fl(n) + 45 |
|
DCS 1800 |
Fl(n)=1 710,2+0,2*(n‑512) |
512<=n<=885 |
Fu(n)=Fl(n)+95 |
|
PCS 1900 and MXM 1900 |
FI(n) = 1 850,2 + 0,2*(n-512) |
512 £ n £ 810 |
Fu(n) = FI(n) + 80 |
|
GSM 450 |
FI(n) = 450,6 + 0,2*(n-259) |
259 £ n £ 293 |
Fu(n) = FI(n) + 10 |
|
GSM 480 |
FI(n) = 479 + 0,2*(n-306) |
306 £ n £ 340 |
Fu(n) = FI(n) + 10 |
|
GSM 850 and MXM 850 |
Fl(n) = 824,2 + 0,2*(n-128) |
128 n 251 |
Fu(n) = Fl(n) + 45 |
The channel numbers for the carrier frequencies within the T-GSM 810 band can only be indicated by dynamic ARFCN mapping (see 3GPP TS 45.005), and are given in Table 3.3-3.
Table 3.3-3: Channel Numbering: Frequencies are in MHz
|
T-GSM 810 |
Fl(n) = 806.2 + 0.2*(n-x+y) |
x n x+z |
Fu(n)=Fl(n) + 45 |
|
GSM 710 |
Fl(n) = 698.2 + 0.2*(n-x+y) |
x n x+z |
Fu(n) = Fl(n) + 30 |
|
GSM 750 |
Fl(n) = 747.2 + 0.2*(n-x+y) |
x n x+z |
Fu(n) = Fl(n) + 30 |
where x = ARFCN_FIRST, y = BAND_OFFSET and z = ARFCN_RANGE (see 3GPP TS 44.018).