ETSI TS 103 325 V1.1.1 (2015-04)

Smart Body Area Network (SmartBAN); Low Complexity Medium Access Control (MAC) for SmartBAN

DTS/SmartBAN-005

General Information

• Status: Published
• Publication Date: 27-Apr-2015
• Technical Committee: SmartBAN - Smart Body Area Network
• Current Stage: 12 - Completion
• Due Date: 12-May-2015
• Completion Date: 28-Apr-2015

Standards Content (Sample)

ETSI TS 103 325 V1.1.1 (2015-04)






TECHNICAL SPECIFICATION
Smart Body Area Network (SmartBAN);
Low Complexity Medium Access Control (MAC) for SmartBAN

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2 ETSI TS 103 325 V1.1.1 (2015-04)



Reference
DTS/SmartBAN-005
Keywords
health, interface, interoperability, protocol
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3 ETSI TS 103 325 V1.1.1 (2015-04)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Symbols . 9
3.3 Abbreviations . 9
4 Introduction and Background . 10
5 General MAC Framework . 10
5.0 Different device types . 10
5.1 Frequency Spectrum . 11
5.2 Channel Format . 11
5.2.1 Control Channel (CCH) Format . 11
5.2.2 Data Channel (DCH) Format . 11
5.2.2.1 Scheduled Access Slot Structure . 12
5.2.2.2 Control and Management Slot Structure . 13
5.2.2.3 Multi-use Access Slot Structure . 13
5.3 User Priorities . 14
5.4 Node IDs . 14
5.5 Information Units . 14
6 Frame Formats . 15
6.1 MAC General Frame Format. 15
6.1.0 General description . 15
6.1.1 MAC Header . 16
6.1.1.0 MAC Header Format. 16
6.1.1.1 Frame Control . 16
6.1.1.1.0 Frame Control Format . 16
6.1.1.1.1 Protocol Version . 16
6.1.1.1.2 Acknowledgement (ACK) Policy . 16
6.1.1.1.3 Frame Type . 16
6.1.1.1.4 Frame Subtype . 17
6.1.1.1.5 Sequence Number . 17
6.1.1.1.6 Fragment Number . 17
6.1.1.1.7 Non-final Fragment . 17
6.1.1.1.8 Command Acknowledgement . 18
6.1.1.2 Recipient ID . 18
6.1.1.3 Sender ID . 18
6.1.1.4 BAN ID . 18
6.1.1.5 FCS . 18
6.1.2 MAC Frame Body . 18
6.1.3 Frame Parity. 19
6.2 Management Frames . 19
6.2.1 Control Channel Beacon (C-Beacon) . 19
6.2.1.0 Control Channel Beacon Frame Format . 19
6.2.1.1 Hub Address . 19
6.2.1.2 Slot Length . 19
6.2.1.3 Time Slots . 20
6.2.1.4 Interference Mitigation . 20
6.2.1.5 Duty Cycling . 20
6.2.1.6 DCH Channel Number . 20
ETSI

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4 ETSI TS 103 325 V1.1.1 (2015-04)
6.2.1.7 Initial State . 20
6.2.1.8 Time Stamp . 20
6.2.2 Data Channel Beacon (D-Beacon) . 20
6.2.2.0 Data Channel Beacon Frame Format . 20
6.2.2.1 Hub Address . 21
6.2.2.2 Inter-Beacon Interval . 21
6.2.2.3 Control and Management Period Start Slot . 21
6.2.2.4 Inactive Period Start Slot . 21
6.2.2.5 Function Indicator . 22
6.2.2.5.0 Function Indicator field . 22
6.2.2.5.1 Downlink Data Indicator . 22
6.2.2.5.2 Slot Reassignment Indicator . 22
6.2.2.5.3 Channel Migration Indicator . 22
6.2.2.6 Multi-use Access . 22
6.2.2.7 Time Stamp . 22
6.2.2.8 Downlink/Slot Reassignment (D/SR) List . 22
6.2.2.9 Slot Reassignment Timing . 22
6.2.2.10 Channel Migration Information . 22
6.2.2.10.1 Migration Timing . 22
6.2.2.10.2 Channel Number . 23
6.2.3 Connection Request (C-Req) . 23
6.2.3.0 Connection Request Frame Format . 23
6.2.3.1 Recipient Address . 23
6.2.3.2 Sender Address . 23
6.2.3.3 Multi-use Access Capability . 23
6.2.3.4 PHY Capability . 24
6.2.3.5 Requested Wakeup Phase . 24
6.2.3.6 Requested Wakeup Period . 24
6.2.3.7 Uplink Allocation Request . 24
6.2.3.8 Downlink Allocation Request . 24
6.2.4 Connection Assignment (C-Ass) . 24
6.2.4.0 Connection Assignment Frame Format . 24
6.2.4.1 Recipient Address . 25
6.2.4.2 Node ID . 25
6.2.4.3 Assigned Wakeup Phase . 25
6.2.4.4 Assigned Wakeup Period . 25
6.2.4.5 Uplink Assignment . 25
6.2.4.6 Downlink Assignment . 26
6.2.5 Slot Reassignment (S-Ras) . 26
6.2.6 Disconnection Request (D-Req) . 26
6.2.6.0 Disconnection request command . 26
6.2.6.1 Length . 26
6.2.6.2 Recipient ID . 26
6.2.7 Disconnection Response (D-Res) . 26
6.3 Control Frames (C-Frame) . 27
6.3.1 Acknowledgement/Negative Acknowledge Frame (ACK/NACK) . 27
6.4 Data Frames (D-Frame) . 27
7 MAC Functions . 27
7.1 General . 27
7.2 SmartBAN Creation and Connection Initialization . 27
7.2.1 SmartBAN Creation . 27
7.2.2 Connection Initialization . 27
7.3 Channel Access . 28
7.3.1 Scheduled Channel Access . 28
7.3.1.0 Scheduled Channel Access . 28
7.3.1.1 Starting Scheduled Access . 28
7.3.1.2 Using Scheduled Access . 28
7.3.1.3 Modifying Scheduled Access . 29
7.3.1.4 Ending Scheduled Access . 29
7.3.2 Slotted Aloha Channel Access . 29
7.3.2.0 Description . 29
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5 ETSI TS 103 325 V1.1.1 (2015-04)
7.3.2.1 Starting Slotted Aloha Channel Access. 29
7.3.2.2 Using Slotted Aloha Channel Access . 29
7.3.2.3 Ending Slotted Aloha Channel Access . 30
7.3.3 Multi-use Channel Access . 30
7.3.3.0 Description . 30
7.3.3.1 Starting Multi-use Channel Access . 30
7.3.3.1.0 Description . 30
7.3.3.1.1 Backoff Algorithm . 30
7.3.3.1.2 Re-use Channel Access (RCA) . 30
7.3.3.1.3 Priority Channel Access (PCA) . 31
7.3.3.2 Using Multi-use Channel Access . 31
7.3.3.2.0 Description . 31
7.3.3.2.1 Scheduled Access Period . 31
7.3.3.2.2 Control and Management Period . 31
7.3.3.3 Ending Multi-use Channel Access . 31
7.4 Supplementary Downlink Data Transmission . 32
7.5 Slot Re-assignment . 32
7.6 Data Channel Migration . 33
8 MAC Parameters . 34
Annex A (normative): Multi-use Channel Access . 35
History . 36

ETSI

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6 ETSI TS 103 325 V1.1.1 (2015-04)
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://ipr.etsi.org).
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 Technical Specification (TS) has been produced by ETSI Technical Committee Smart Body Area Network
(SmartBAN).
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI

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7 ETSI TS 103 325 V1.1.1 (2015-04)
1 Scope
The present document specifies low complexity medium access control (MAC) for SmartBAN.
The present document applies to short range, wireless communication between wearable sensors devices and the hub
coordinator. The present document specifies MAC protocol designed to facilitate spectrum sharing with other devices.
The specification describes:
• Channel Structure.
• MAC Frame Formats.
• MAC functions.
The devices are capable of operating in all or any part of the frequency band shown in Table 1.
Table 1: Industrial, Scientific and Medical (ISM) frequency band
Direction of Transmission Industrial, Scientific and Medical (ISM) frequency band
Transmit / Receive 2,4 GHz to 2,4835 GHz

2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
reference document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI TS 103 326 (V1.1.1) (2015-03): "Smart Body Area Network (SmartBan); Enhanced Ultra-
Low Power Physical Layer".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
reference document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI EN 300 328-1 (V1.3.1) (2001-12): "Electromagnetic compatibility and Radio spectrum
Matters (ERM); Wideband Transmission systems; Data transmission equipment operating in the
2,4 GHz ISM band and using spread spectrum modulation techniques; Part 1: Technical
characteristics and test conditions".
[i.2] IEEE™ Std. 802.15.6-2012: "IEEE Standard for Local and metropolitan area networks - Part 15.6:
Wireless Body Area Networks".
ETSI

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8 ETSI TS 103 325 V1.1.1 (2015-04)
[i.3] IEEE™ Std. 802.15.4-2011: "IEEE Standard for Local and metropolitan area networks -
Part 15:4: Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specification for
Low-Rate Wireless Personal Area Networks".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
active period: period within the superframe period that is ready for frame reception and transmission
active state: internal power management state that is ready for the frame reception and transmission
allocation: one or more time intervals that a node or a hub obtains using an access method for initiating one or more
frame transactions
beacon: frame transmitted by a hub to facilitate network management, such as the coordination of medium access and
power management of the nodes in the SmartBAN, and to facilitate clock synchronization therein
beacon period: duration when a beacon is transmitted
connection: relation between a node and a hub in a body area network (BAN), substantiated by an identification
assigned to the node by the hub and by access arrangement between them
device: entity conforming to the SmartBAN medium access control and physical interface to the wireless medium
downlink: communication link for transfer of management and data traffic from a hub to a node
frame: uninterrupted sequence of octets delivered by the medium access control (MAC) sublayer to the physical (PHY)
layer, or vice versa, within a node or a hub
hub: entity that possesses a node's functionality and coordinated the medium access and power management of the
node
...