1、 I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n U n i o n ITU-T G.9959 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (01/2015) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Access networks In premises networks Short range narrow-band digital radiocommunication
2、 transceivers PHY, MAC, SAR and LLC layer specifications Recommendation ITU-T G.9959 ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS G.100G.199 GENERAL CHARACTERISTICS COMMON TO ALL ANALOGUE CARRIER-TRANSMIS
3、SION SYSTEMS G.200G.299 INDIVIDUAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON METALLIC LINES G.300G.399 GENERAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON RADIO-RELAY OR SATELLITE LINKS AND INTERCONNECTION WITH METALLIC LINES G.400G.449 COORDINATION OF RADIOTELE
4、PHONY AND LINE TELEPHONY G.450G.499 TRANSMISSION MEDIA AND OPTICAL SYSTEMS CHARACTERISTICS G.600G.699 DIGITAL TERMINAL EQUIPMENTS G.700G.799 DIGITAL NETWORKS G.800G.899 DIGITAL SECTIONS AND DIGITAL LINE SYSTEM G.900G.999 MULTIMEDIA QUALITY OF SERVICE AND PERFORMANCE GENERIC AND USER-RELATED ASPECTS
5、G.1000G.1999 TRANSMISSION MEDIA CHARACTERISTICS G.6000G.6999 DATA OVER TRANSPORT GENERIC ASPECTS G.7000G.7999 PACKET OVER TRANSPORT ASPECTS G.8000G.8999 ACCESS NETWORKS G.9000G.9999 Metallic access networks G.9700G.9799 Optical line systems for local and access networks G.9800G.9899 In premises netw
6、orks G.9900G.9999 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T G.9959 (01/2015) i Recommendation ITU-T G.9959 Short range narrow-band digital radiocommunication transceivers PHY, MAC, SAR and LLC layer specifications Summary Recommendation ITU-T G.9959 specifies
7、 the physical (PHY), medium access control (MAC), segmentation and reassembly (SAR), and logical link control (LLC) layers for short range narrow-band digital radiocommunication transceivers (TRXs). This Recommendation contains the non-radio (frequency) related aspects of the radiocommunication TRX.
8、 Sub 1 GHz TRXs claiming compliance with this specification shall also comply with Annex A of this Recommendation. History Edition Recommendation Approval Study Group Unique ID* 1.0 ITU-T G.9959 2012-02-13 15 11.1002/1000/11529 1.1 ITU-T G.9959 (2012) Amd.1 2013-10-07 15 11.1002/1000/12006 2.0 ITU-T
9、 G.9959 2015-01-13 15 11.1002/1000/12399 _ * To access the Recommendation, type the URL http:/handle.itu.int/ in the address field of your web browser, followed by the Recommendations unique ID. For example, http:/handle.itu.int/11.1002/1000/ 11830-en. ii Rec. ITU-T G.9959 (01/2015) FOREWORD The Int
10、ernational Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical,
11、operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in tur
12、n, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE
13、 In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure, e
14、.g., interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not
15、suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTSITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the e
16、vidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had received notice of intellectual property, protected by patents, which ma
17、y be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2015 All rights reserved. No part of this publication may be
18、 reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T G.9959 (01/2015) iii Table of Contents Page 1 Scope . 1 2 References . 1 3 Definitions 1 3.1 Terms defined elsewhere 1 3.2 Terms defined in this Recommendation . 1 4 Abbreviations and acronyms 3 5 Conventio
19、ns 4 6 Network architecture and reference models . 4 6.1 Network architecture and topology 4 6.2 Reference models . 6 6.3 Operation modes . 8 7 PHY specification . 8 7.1 PHY specification of sub 1 GHz TRXs 8 8 MAC layer specification . 27 8.1 MAC specifications of the sub 1 GHz TRXs 27 9 LLC layer s
20、pecification 56 9.1 General . 56 9.2 Cascaded adaptation layer architecture 56 9.3 DLPDU format . 57 9.4 Data link interface selection . 58 9.5 LLC layer constants 58 10 Adaptation layers 59 10.1 SAR adaptation layer 59 Annex A Non-radio related aspects of the Z-Wave PHY and MAC Specifications 68 A.
21、1 Introduction 68 A.2 General description . 68 A.3 Physical (PHY) layer specification 74 A.4 Medium access (MAC) layer specification 91 Bibliography. 119 Rec. ITU-T G.9959 (01/2015) 1 Recommendation ITU-T G.9959 Short range narrow-band digital radiocommunication transceivers PHY, MAC, SAR and LLC la
22、yer specifications 1 Scope This Recommendation specifies the PHY, MAC, SAR and LLC layers for short range narrow-band digital radio communication transceivers (TRXs). The Recommendation specifies sub 1 GHz TRXs which shall be interoperable with TRXs complying with Annex A of this Recommendation. 2 R
23、eferences None. 3 Definitions 3.1 Terms defined elsewhere None. 3.2 Terms defined in this Recommendation This Recommendation defines the following terms: 3.2.1 alien domain: Any group of non-ITU-T G.9959 nodes connected to the same or a different medium (wired or wireless). These domains can be used
24、 as backbones to the ITU-T G.9959 network or as separate networks. The bridging function to an alien domain, as well as coordination with an alien domain to avoid mutual interference is beyond the scope of this Recommendation. 3.2.2 broadcast: A type of communication where a node sends a MAC frame w
25、hich is simultaneously received by all other nodes within a direct range. In a multi-hop domain, some nodes of the domain may not receive the broadcast frame. 3.2.3 channel: A transmission path between nodes. Logically a channel is an instance of a communication medium being used for the purpose of
26、passing data between two or more nodes. 3.2.4 clear channel assessment (CCA): Provided by the receiver, a CCA indicates if the medium is busy, e.g., if a PHY frame is currently transmitted on the medium by another node. 3.2.5 data: Bits or bytes transported over the medium or via a reference point t
27、hat individually convey information. Data includes user (application) data and any other auxiliary information (overhead, control, management, etc.). Data does not include bits or bytes that, by themselves, do not convey any information, such as the preamble. 3.2.6 data rate: The rate, in bits per s
28、econd, at which data is transmitted by a node onto the medium. Data rate is calculated only for time periods of continuous transmission. 3.2.7 domain: A collection of ITU-T G.9959 nodes comprising the domain master and all those nodes that are registered with the same domain master. In the context o
29、f this Recommendation, use of the term domain without a qualifier means ITU-T G.9959 domain, and use of the term alien domain means non-ITU-T G.9959 domain. 3.2.8 domain ID: A unique identifier of a domain. Refer to HomeID. 3.2.9 domain master: A node with extended management capabilities which allo
30、ws it to handle registration and maintenance of the nodes in its domain. 3.2.10 home area network (HAN): A network capable of connecting devices in home premises. 2 Rec. ITU-T G.9959 (01/2015) 3.2.11 HomeID: Information unit used as a domain ID in ITU-T G.9959 networks. 3.2.12 inclusion: The process
31、 of adding a new node to a domain in a way so that the node can communicate with other nodes in the domain and filter out traffic from other domains. 3.2.13 inter-domain bridge (IDB): A bridging function to interconnect nodes of two different domains. 3.2.14 industrial, scientific and medical (ISM)
32、band: Frequency bands for industrial, scientific and medical use, allocated by the ITU. 3.2.15 latency: A measure of the delay from the instant that a frame has been transmitted through a reference point of the transmitter protocol stack to the instant when a frame reaches the corresponding referenc
33、e point of the receiver protocol stack. 3.2.16 logical (functional) interface: An interface in which the semantic, syntactic, and symbolic attributes of information flows are defined. Logical interfaces do not define the physical properties of signals used to represent the information. It is defined
34、 by a set of primitives. 3.2.17 medium: The radio waves carrying the signals. Walls and other building components may affect the quality of the medium. Nodes communicating via the same medium may interfere with each other. 3.2.18 multicast: A type of communication where a node sends a MAC frame whic
35、h is simultaneously received by one or more other nodes in the domain. 3.2.19 network: One or more, potentially overlapping, domains. 3.2.20 node: Any device that contains an ITU-T G.9959 transceiver. In the context of this Recommendation, the term node without a qualifier means an ITU-T G.9959 node
36、, and the term alien node means a non-ITU-T G.9959 node. 3.2.21 node ID: A unique identifier allocated to a node during its registration in a domain. 3.2.22 physical interface: An interface defined in terms of the physical properties of the signals used to represent the information transfer. A physi
37、cal interface is defined by signal parameters like power (power spectrum density) and timing. 3.2.23 primitives: Variables and functions used to define logical interfaces and reference points. 3.2.24 reference point: A location in a signal flow, either logical or physical, that provides a common poi
38、nt for observation and or measurement of the signal flow. 3.2.25 symbol frame: A frame composed of bits of a single modulation symbol period. 3.2.26 symbol rate: The rate, in symbols per second, at which modulation symbols are transmitted by a node onto a medium. Symbol rate is calculated only for t
39、ime periods of continuous transmission. 3.2.27 transmission overhead: A part of the available data rate used to support transmission over the media (e.g., preamble, inter-frame gaps, and silent periods). 3.2.28 unicast: A type of communication when a node sends the frame to another single node. Rec.
40、 ITU-T G.9959 (01/2015) 3 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: ACK Acknowledgement AL Always Listening CCA Clear Channel Assessment CRC Cyclic Redundancy Code Dst Destination EOF End of Frame EHR End Header EIRP Effective Isotropic Radiated
41、Power FCS Frame Check Sequence FER Frame Error Rate FL Frequently Listening FLN Frequently Listening Node FSK Frequency Shift Keying GFSK Gaussian Frequency Shift Keying HAN Home Area Network ID Identification IDB Inter-Domain Bridge ISM Industrial, Scientific and Medical LBT Listen Before Talk LLC
42、Logical Link Control LSB Least Significant Bit MAC Medium Access Control MD MAC Data MD-SAP MAC Data Service Access Point MDI Medium-Dependent Interface MFR MAC Footer MHR MAC Header MIB Management Information Base MLME MAC Layer Management Entity MLME-SAP MAC Layer Management Entity Service Access
43、Point MPDU MAC Protocol Data Unit MSB Most Significant Bit MSDU MAC Service Data Unit NPDU Network Layer Protocol Data Unit NRZ Non Return to Zero 4 Rec. ITU-T G.9959 (01/2015) OSI Open System Interconnection PD PHY Data PD-SAP PHY Data Service Access Point PDU Protocol Data Unit PHY Physical Layer
44、PLME-SAP Physical Layer Management Entity Service Access Point PMI Physical Medium-Independent interface PPDU PHY Protocol Data Unit PPM Parts Per Million PSDU PHY Service Data Unit R1 Data Rate Type 1 (9.6 kbit/s) R2 Data Rate Type 2 (40 kbit/s) R3 Data Rate Type 3 (100 kbit/s) RF Radio Frequency R
45、X Receive/Receiver SAP Service Access Point SAR Segmentation and Reassembly SDU Service Data Unit SHR Start Header SOF Start of Frame Src Source TRX Transceiver TX Transmit/Transmitter 5 Conventions None. 6 Network architecture and reference models 6.1 Network architecture and topology 6.1.1 Basic p
46、rinciples of ITU-T G.9959 networking The following are the basic principles of the ITU-T G.9959 network architecture: 1. The network is divided into domains: The division of physical nodes into domains is logical. Domains may fully or partially overlap as there is no physical separation. The number
47、of domains is limited by the 32-bit HomeID identifier. Each domain is identified by a unique HomeID. Nodes of different domains may communicate with each other via inter-domain bridges (IDB). Rec. ITU-T G.9959 (01/2015) 5 Operation of different domains is handled by individual domain masters. 2. The
48、 domain is a set of nodes connected to the same medium: One node in the domain operates as a domain master. Each domain may contain up to 232 nodes (including the domain master). Each node in the domain is identified by a NodeID that is unique inside the domain. All nodes that belong to the same dom
49、ain are identified by the same HomeID. A node can belong to only one domain. Nodes of the same domain may communicate with each other either directly or via other nodes of the same domain. 3. Nodes of different ITU-T G.9959 domains: Nodes in different domains can communicate via IDB. The IDB function is a bridging function associated with one dedicated node in each network domain. The details of
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