SIST EN 300 175-2 V1.5.1:2003
(Main)Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 2: Physical Layer (PHL)
Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 2: Physical Layer (PHL)
Maintenance update.
Digitalne izboljšane brezvrvične telekomunikacije (DECT) – Skupni vmesnik (CI) – 2. del: Fizična plast (PHL)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 300 175-2 V1.5.1:2003
01-december-2003
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Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 2:
Physical Layer (PHL)
Ta slovenski standard je istoveten z: EN 300 175-2 Version 1.5.1
ICS:
33.070.30 'LJLWDOQHL]EROMãDQH Digital Enhanced Cordless
EUH]YUYLþQHWHOHNRPXQLNDFLMH Telecommunications (DECT)
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SIST EN 300 175-2 V1.5.1:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 300 175-2 V1.5.1:2003
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SIST EN 300 175-2 V1.5.1:2003
ETSI EN 300 175-2 V1.5.1 (2001-02)
European Standard (Telecommunications series)
Digital Enhanced Cordless Telecommunications (DECT);
Common Interface (CI);
Part 2: Physical Layer (PHL)
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SIST EN 300 175-2 V1.5.1:2003
2 ETSI EN 300 175-2 V1.5.1 (2001-02)
Reference
REN/DECT-000157-2
Keywords
DECT, radio
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© European Telecommunications Standards Institute 2001.
All rights reserved.
ETSI
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SIST EN 300 175-2 V1.5.1:2003
3 ETSI EN 300 175-2 V1.5.1 (2001-02)
Contents
Intellectual Property Rights .6
Foreword.6
1 Scope.7
2 References.7
3 Definitions and abbreviations.8
3.1 Definitions . 8
3.2 Abbreviations. 9
4 PHL services .10
4.1 RF channels (access in frequency) . 10
4.1.1 Nominal position of RF carriers. 10
4.1.2 Accuracy and stability of RF carriers. 11
4.2 Time Division Multiple Access (TDMA) structure (access in time). 11
4.2.1 Frame, full-slot, double-slot, and half-slot structure . 11
4.2.2 Reference timer accuracy and stability. 12
4.2.3 RFP transmission jitter. 12
4.2.4 PP reference timer synchronization. 13
4.2.5 System synchronization. 13
4.2.6 Inter-system synchronization. 13
4.2.7 Reference timer adjustment for synchronization. 13
4.3 Cells (access in space) . 13
4.4 Physical packets . 14
4.4.1 The short physical packet P00 . 14
4.4.2 The basic physical packet P32. 15
4.4.3 The low capacity physical packet P08j. 15
4.4.4 The high capacity physical packet P80. 16
4.5 Physical channels . 16
4.5.1 Ra (K,L,M,N) notation. 16
4.5.2 The short physical channel R00(K,L,M,N) . 17
4.5.3 The basic physical channel R32(K,L,M,N) . 17
4.5.4 The low-rate physical channel R08j(K,L,M,N) . 18
4.5.5 The high capacity physical channel R80(K,L,M,N). 19
4.6 Synchronization field S. 19
4.7 D-field . 20
4.7.1 Physical packet P00 . 20
4.7.2 Physical packet P32 . 20
4.7.3 Physical packet P08j . 20
4.7.4 Physical packet P80 . 20
4.8 Z-field. 21
4.9 Bit pattern during ramping. 21
5 Transmission of physical packets .21
5.1 Definitions . 21
5.1.1 End of the physical packet. 21
5.1.2 Transmitted power . 21
5.1.3 Normal Transmitted Power (NTP). 22
5.2 Transmission burst . 22
5.2.1 Transmitter attack time. 22
5.2.2 Transmitter release time. 22
5.2.3 Minimum power . 22
5.2.4 Maximum power. 22
5.2.5 Maintenance of transmission after packet end. 22
5.2.6 Transmitter idle power output. 23
5.3 Transmitted power. 23
5.3.1 Peak power per transceiver. 23
ETSI
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SIST EN 300 175-2 V1.5.1:2003
4 ETSI EN 300 175-2 V1.5.1 (2001-02)
5.3.1.1 PP and RFP with an integral antenna. 23
5.3.1.2 PP and RFP with external connections for all antennas. 23
5.3.2 Maximum EIRP and number of transceivers.23
5.4 RF carrier modulation. 23
5.4.1 Modulation method. 23
5.4.2 Definition of "1" and "0". 24
5.4.3 Deviation limits . 24
5.5 Unwanted RF power radiation . 24
5.5.1 Emissions due to modulation. 24
5.5.2 Emissions due to transmitter transients . 25
5.5.3 Emissions due to intermodulation. 25
5.5.4 Spurious emissions when allocated a transmit channel. 25
6 Reception of physical packets .26
6.1 Definitions and conditions for clause 6 . 26
6.1.1 Power levels and field strength. 26
6.1.2 Test conditions. 26
6.1.3 Reference DECT radio end point. 26
6.2 Radio receiver sensitivity. 27
6.3 Radio receiver reference bit error rate and frame error ratio. 27
6.4 Radio receiver interference performance. 27
6.5 Radio receiver blocking. 27
6.5.1 Owing to signals occurring at the same time but on other frequencies . 27
6.5.2 Owing to signals occurring at a different time. 28
6.6 Receiver intermodulation performance. 28
6.7 Spurious emissions when not allocated a transmit channel. 28
6.7.1 Out of band. 28
6.7.2 In the DECT band. 28
7 Primitives between physical layer and other entities .29
7.1 Medium access control layer (D-SAP) . 29
7.1.1 PL_TX {req} . 29
7.1.2 PL_RX {req,cfm} . 30
7.1.3 PL_FREQ_ADJ {req,}. 30
7.2 Management entity (PM-SAP). 30
7.2.1 PL_ME_SYNC {req,cfm}. 30
7.2.2 PL_ME_SIG_STR {req,cfm}. 30
7.2.3 PL_ME_TIME_ADJ {req,cfm}. 31
8 PHL procedures .31
8.1 Addition of synchronization field and transmission . 31
8.2 Packet reception and removal of synchronization field . 31
8.3 Measurement of signal strength . 32
8.4 Synchronization pulse detection. 32
8.5 Timing adjustment. 32
8.6 Frequency adjustment. 32
9 Management entity procedures related to PHL .32
9.1 List of quietest physical channels. 32
9.2 Physical channels with greatest field strength (PP only) . 33
9.3 Extract timing. 33
Annex A (normative): RF safety requirements.34
A.1 Recommendation.34
A.2 Safety distances .34
Annex B (normative): Synchronization port .35
B.1 General requirements.35
B.2 Wired synchronization ports .36
B.2.1 Synchronization signal . 37
ETSI
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SIST EN 300 175-2 V1.5.1:2003
5 ETSI EN 300 175-2 V1.5.1 (2001-02)
B.3 GPS synchronization.38
B.3.1 Synchronization signal . 39
B.3.2 DECT timings derivation from the GPS time . 39
B.3.2.1 DECT multiframe number synchronization using GPS. 39
B.3.2.2 DECT PSCN synchronization using GPS . 40
B.4 Guidance for installation.40
B.4.1 Interconnection cable. 40
B.4.2 Propagation delay of synchronization signals. 40
B.4.2.1 Calculation of Propagation delay (informative). 40
B.4.2.2 Delay compensation. 41
B.4.3 GPS receiver stability.41
Annex C (normative): Prolonged preamble.42
C.1 Bit pattern.42
C.2 The power-time template .42
Annex D (normative): 4-level/8-level modulation option.43
D.1 The Π/2-DBPSK modulation scheme.44
D.1.1 RF carrier modulation. 44
D.1.1.1 Modulation accuracy. 44
D.1.2 Transmission of physical packets. 44
D.2 The Π/4-DQPSK modulation scheme.44
D.2.1 RF carrier modulation. 44
D.2.1.1 Modulation accuracy. 45
D.2.2 Transmission of physical packets. 45
D.3 The Π/8-D8PSK modulation scheme.45
D.3.1 RF carrier modulation. 45
D.3.1.1 Modulation accuracy. 46
D.3.2 Transmission of physical packets. 46
Annex E (normative): Power control procedures.47
E.1 Definitions of parameters and relations between parameters.48
E.2 Procedure for PP power adjustment due to movement .49
E.3 Setting the power control threshold, RSSpT.49
Annex F (informative): DECT carrier numbers and carrier positions in the range 1 880 MHz
to 1 938 MHz.51
Annex G (informative): Bibliography.52
History .53
ETSI
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SIST EN 300 175-2 V1.5.1:2003
6 ETSI EN 300 175-2 V1.5.1 (2001-02)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://www.etsi.org/ipr).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This European Standard (Telecommunications series) has been produced by ETSI Project Digital Enhanced Cordless
Telecommunications (DECT).
The present document is part 2 of a multi-part EN covering the Common Interface (CI) for the Digital Enhanced
Cordless Telecommunications (DECT), as identified below:
Part 1: "Overview";
Part 2: "Physical Layer (PHL)";
Part 3: "Medium Access Control (MAC) layer";
Part 4: "Data Link Control (DLC) layer";
Part 5: "Network (NWK) layer";
Part 6: "Identities and addressing";
Part 7: "Security features";
Part 8: "Speech coding and transmission".
Further details of the DECT system may be found in TR 101 178 [10] and ETR 043 [9].
National transposition dates
Date of adoption of this EN: 16 February 2001
Date of latest announcement of this EN (doa): 31 May 2001
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 November 2001
Date of withdrawal of any conflicting National Standard (dow): 30 November 2001
ETSI
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SIST EN 300 175-2 V1.5.1:2003
7 ETSI EN 300 175-2 V1.5.1 (2001-02)
1 Scope
The present document gives an introduction and overview of the complete Digital Enhanced Cordless
Telecommunications (DECT) Common Interface (CI).
The present document of the DECT CI specifies the physical channel arrangements. DECT physical channels are radio
communication paths between two radio end points. A radio end point is either part of the fixed infrastructure or a
Portable Part (PP), typically a handset. The assignment of one or more particular physical channels to a call is the task
of higher layers.
The Physical Layer (PHL) interfaces with the Medium Access Control (MAC) layer, and with the Lower Layer
Management Entity (LLME). On the other side of the PHL is the radio transmission medium which has to be shared
extensively with other DECT users and a wide variety of other radio services. The tasks of the PHL can be grouped into
five categories:
a) to modulate and demodulate radio carriers with a bit stream of a defined rate to create a radio frequency channel;
b) to acquire and maintain bit and slot synchronization between transmitters and receivers;
c) to transmit or receive a defined number of bits at a requested time and on a particular frequency;
d) to add and remove the synchronization field and the Z-field used for rear end collision detection;
e) to observe the radio environment to report signal strengths.
2 References
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.
[1] ETSI EN 300 175-1: "Digital Enhanced Cordless Telecommunications (DECT); Common
Interface (CI); Part 1: Overview".
[2] ETSI EN 300 175-3: "Digital Enhanced Cordless Telecommunications (DECT); Common
Interface (CI); Part 3: Medium Access Control (MAC) layer".
[3] ETSI EN 300 175-4: "Digital Enhanced Cordless Telecommunications (DECT); Common
Interface (CI); Part 4: Data Link Control (DLC) layer".
[4] ETSI EN 300 175-5: "Digital Enhanced Cordless Telecommunications (DECT); Common
Interface (CI); Part 5: Network (NWK) layer".
[5] ETSI EN 300 175-6: "Digital Enhanced Cordless Telecommunications (DECT); Common
Interface (CI); Part 6: Identities and addressing".
[6] ETSI EN 300 176-1: "Digital Enhanced Cordless Telecommunications (DECT); Approval test
specification; Part 1: Radio".
[7] ITU – R M.1457: "Detailed specifications of International Mobile Telecommunications-2000
(IMT-2000)".
[8] EIA TIA/EIA-422-B: "Electrical Characteristics of Balanced Voltage Digital Interface
Circuits R (2000)".
ETSI
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SIST EN 300 175-2 V1.5.1:2003
8 ETSI EN 300 175-2 V1.5.1 (2001-02)
[9] ETSI ETR 043: "Digital Enhanced Cordless Telecommunications (DECT); Common Interface
(CI); Services and facilities requirements specification".
[10] ETSI TR 101 178: "Digital Enhanced Cordless Telecommunications (DECT); A High Level Guide
to the DECT Standardization".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document the following terms and definitions apply:
antenna diversity: see EN 300 175-1 [1]
cell: see EN 300 175-1 [1]
Central Control Fixed Part (CCFP): see EN 300 175-1 [1]
channel: see EN 300 175-1 [1]
cluster: see EN 300 175-1 [1]
Connection Oriented mode (C/O): see EN 300 175-1 [1]
Cordless Radio Fixed Part (CRFP): see EN 300 175-1 [1]
coverage area: see EN 300 175-1 [1]
Dect Network (DNW): see EN 300 175-1 [1]
double duplex bearer: see EN 300 175-1 [1]
double simplex bearer: see EN 300 175-1 [1]
double slot: see EN 300 175-1 [1]
down-link: see EN 300 175-1 [1]
duplex bearer: see EN 300 175-1 [1]
Fixed Part (DECT Fixed Part) (FP): see EN 300 175-1 [1]
Fixed Radio Termination (FT): see EN 300 175-1 [1]
frame: see EN 300 175-1 [1]
full slot (slot): see EN 300 175-1 [1]
guard space: see EN 300 175-1 [1]
half slot: see EN
...
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