1、 TIA-4957.100-A (Revision of TIA-4957.100) July 2017Layer 1 Standard Specification for the Smart Utility Network ANSI/TIA-4957.100-A-2017 APPROVED: APRIL 20, 2017 NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings between
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23、uction . 12 1.1 Scope and Purpose . 1 3 1.2 Release History 1 4 2. References . 25 3. Acronyms 36 4. Overview . 47 5. PHY specification . 58 5.1 PPDU Format . 5 9 5.2 Preamble Field . 5 10 5.3 SFD 5 11 5.4 PHR 5 12 5.5 Modulation and Coding 6 13 5.6 Symbol rate and Modulation Index 6 14 5.7 Frequenc
24、y Bands and Channel Parameters . 6 15 5.8 FEC 8 16 5.9 Data Whitening 9 17 5.10 Radio Specifications 9 18 6. Regional Considerations 1019 6.1 Brazil Region 10 20 21 22 23 List of Figures 24 No table of figures entries found.25 26 27 List of Tables 28 Table 1 Preamble Lengths per Operating Modes 5 29
25、 Table 2 PHY Operating Modes and Symbol Rates 6 30 Table 3 Supported Frequency Bands and Channel Parameters . 7 31 Table 4 Radio Specification 9 32 Table 5 Excluded Channels in Brazil 10 33 34 ANSI/TIA-PN4957-100a ii Foreword (This foreword is not part of this standard) 1 This document is a TIA Tele
26、communications Standard produced by the TR-51 Committee. 2 The standard was produced in accordance with TIA procedural guidelines, and represents 3 the consensus of the committee which served as the formulating group. 4 This standard consists of 6 clauses that describe the PHY design. The formats of
27、 PHY 5 Protocol Data Unit, preamble, start frame delimiter, PHY header are specified. The PHY 6 parameters including modulation/coding, forward error coding and data whitening are also 7 described. The radio specifications are listed in a sub-clause. This document provides the 8 PHY layer specificat
28、ions for Smart Utility Networks, particularly in Field Area Networks. 9 The summary provides a high level statement of what is provide by the suite of ANSI/TIA 10 PN-4957 standards. 11 The TR-51 committee officers wish to acknowledge the contributions and support of the 12 following TR-51 members in
29、 the preparation of this standard: 13 14 4957 Series Revision Contributor Company / Representing Kramarikova, Marianna TIA Sturek, Don Silver Spring Networks Lynch, Michael MJ Lynch & Associates, LLC Heile, Bob Wi-SUN Alliance Notor, John Notor Research Kent, Jeritt Analog Devices, Inc. Beecher, Phi
30、l Wi-SUN Alliance Lima, Octavio SUNA Stuebing, Gary Cisco Shah, Kunal Silver Spring Networks Kent, Jeritt Analog Devices Sum, Chin Sean Wi-SUN Alliance 15 Comments, corrections or requests for enhancement should be addressed to: 16 Telecommunications Industry Association 17 1320 N. Court House Road
31、Suite 200 18 Arlington, VA 22201 19 (http:/www.tiaonline.org) 20 21 22 23 ANSI/TIA-PN4957-100a 1 1. Introduction 1 2 1.1 Scope and Purpose 3 This specification defines a Physical Layer for Smart Utility Networks, particularly in the 4 extension on Field Area Networks. It is derived from the IEEE 802
32、.15.4-2015TMSUN PHYs 5 (see IEEE802.15.4-2015), with modifications for improved interoperability and consistency. 6 7 1.2 Release History 8 9 Date Version Author Comments 5 May 2016 0v01-RC1 Chin-Sean Sum As per Wi-SUN PHY TPS 1v00 13 May 2016 0v01-RC1 Kunal Shah Updated per Wi-SUN PHY TPS 1v00 19 S
33、ep 2016 0v01-RC1 Chin-Sean Sum As per approved resolutions to comments in Letter Ballot 1 21 Sep 2016 0v01-RC2 Chin-Sean Sum Editorial touch-up on introduction and references 21 Oct. 2016 0v02-RC3 Chin-Sean Sum Added list of contributors Editorial touch-up 22 April 2017 0v03-RC1 Chin-Sean Sum Editor
34、ial touch-up addressing comments from TIA Publications 11 May 2017 0v03-RC2 Chin-Sean Sum Editorial touch-up addressing comments from TIA Publications 13 June 2017 0v03-RC3 Kunal Shah Editorial touch-up addressing comments from TIA Publications 19 June 2017 0v03-RC3 Kunal Shah Editorial touch-up add
35、ressing comments from TIA Publications 10 11 12 13 14 15 16 17 ANSI/TIA-PN4957-100a 2 2. References 1 2 IEEE802.15.4-2015 “IEEE Std 802.15.4-2015 IEEE Standard for Local and 3 metropolitan area networksPart 15.4: Low-Rate Wireless 4 Personal Area Networks (LR-WPANs)” 5 CEPT “CEPT ERC Recommendation
36、70-03” 6 ETSI “ETSI TS 102 887-1” 7 NFAP “National Frequency Allocation Plan-2011 WPC” 8 IEEESASSM 2014 IEEE-SA Standards Style Manual 9 https:/development.standards.ieee.org/myproject/Public/mytools/d10 raft/styleman.pdf 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ANSI/TIA-PN4957
37、-100a 3 3. Acronyms 1 2 CRC Cyclic Redundancy Check FAN Field Area Network FCS Frame Check Sequence FEC Forward Error Correction FHSS Frequency Hopping Spread Spectrum FSK Frequency Shift Keying PHR PHY Header PHY Physical Layer PPDU PHY Protocol Data Unit PSDU PHY Service Data Unit RLMM Resource Li
38、mited Monitoring and Management SFD Start-of-frame Delimiter 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 ANSI/TIA-PN4957-100a 4 4. Overview 1 This document provides the technical description of the PHY operating modes which are 2 defined by specific application profiles. The operating pa
39、rameters for the defined PHY 3 operating modes, the defined PHY modes that applied to different regions, appropriate 4 channel plans for each band, and any regionally specific PHY operating details, are defined 5 in this document. 6 Many of the PHY operating parameters are common across multiple pro
40、files, and many PHY 7 modes may operate in a variety of bands world-wide. The profile specifications define PHY 8 requirements for conforming implementations by reference to the PHY mode definitions in 9 this document. 10 11 12 13 14 ANSI/TIA-PN4957-100a 5 5. PHY specification 1 2 Frequency Shift Ke
41、ying (FSK) PHY specification is derived from the subset of 3 IEEE802.15.4-2015 SUN FSK PHY. 4 5 6 5.1 PPDU Format 7 PPDU format shall be supported as described in Figure 20-1 of 20.2 IEEE802.15.4-2015, 8 with the following limitations: 9 10 11 5.2 Preamble Field 12 The preamble pattern shall be as d
42、efined for 2-FSK in 20.2.1.1 IEEE802.15.4-2015, with 13 the number of repetitions (phyFSKPreambleLength) set as shown below in Table 1. 14 15 Table 1 Preamble Lengths per Operating Modes 16 Operating Modes Preamble Length (Bytes) 1 8 2a 8 3 12 5 24 17 18 5.3 SFD 19 When FEC is not enabled, the SFD s
43、hall contain the value specified for uncoded 20 PHR+PSDU with phyMRFSKSFD set to zero as described in Table 20.2 of 20.2.1.2 21 IEEE802.15.4-2015. 22 When FEC is enabled, the SFD shall contain the value specified for coded PHR+PSDU with 23 phyMRFSKSFD set to zero as described in Table 20.2 of 20.2.1
44、.2 IEEE802.15.4-2015. 24 25 26 5.4 PHR 27 PHR format is as described in Figure 20.4 of 20.2.2 IEEE802.15.4-2015. The fields of the 28 PHR shall be set to the following as described below in this section. 29 The Mode Switch field shall be always set to zero upon transmission and ignored upon 30 recep
45、tion. 31 When 4-octet FCS is used, the FCS Type field is set to 0, otherwise it is set to 1 for 2-octet 32 FCS. The FCS Type field (in the PHR) shall be set to 0 (4-octet CRC). Packets received 33 with the FCS field set to 1 may be discarded. 34 35 ANSI/TIA-PN4957-100a 6 The Data Whitening field sha
46、ll be set to 1 (data whitening enabled)*. Packets received with 1 the Data Whitening field set to 0 shall be discarded. 2 The Frame Length field shall be set to as described in 20.2.2 IEEE802.15.4-2015. 3 All reserved fields MUST be set to zero upon transmission and ignored upon reception. 4 5 5.5 M
47、odulation and Coding 6 The modulation for the FSK PHY is 2-level FSK. This section describes the symbol rate and 7 channel parameters for the PHY operating modes and the set of regional frequency bands 8 which may be supported in the profiles is as shown in Table 3. 9 The applicability of operating
48、modes to frequency bands is given in 2. All FAN devices shall 10 operate on at least one of the frequency bands as shown in Table 3. 11 12 A FAN device shall support Operating Mode #1 (in Table 2) for at least one of the frequency 13 bands specified in Table 3. For each supported band, a FAN device
49、shall also support 14 Operating Mode #3 (in Table 2) if the band supports channel spacing of at least 400 KHz. 15 16 5.6 Symbol rate and Modulation Index 17 This section describes all the operating PHY modes supported and respective modulation 18 index as shown in Table 2. 19 20 Table 2 PHY Operating Modes and Symbol Rates 21 PHY Operating Modes Symbol Rate (ksymbol/s) Modulation Index Operating Mode# 1 50 1.0 Operating Mode# 2a 100 0.5 Operating Mode# 2b 100 1.0 Operating Mode# 3 150 0.5 Operating Mode# 4 200 0.5 Operating Mode# 5 300 0.5 22 23 5.7 Frequ
