Scope of annex
This annex covers frequency bands, regulatory and informative parameters recommended for tracking, tracing and data acquisition applications including:
- Emergency detection of buried victims and valuable items such as detecting avalanche victims;
- Person detection and collision avoidance;
- Meter reading;
- Sensors (water, gas, electricity, meteorology, pollution, etc.) and actuators (controlling devices such as street or traffic lights, etc.);
- Data acquisition;
- Wireless Industrial Applications (WIA) to be used in industrial environments including monitoring and worker communications, wireless sensors and actuators.
| Frequency Band | Power / Magnetic Field | Spectrum access and mitigation requirements | Modulation /occupied bandwidth | ECC/ERC Deliverable | Notes | |
|---|---|---|---|---|---|---|
| a1 | 442.2kHz - 450kHz |
7 dBµA/m at 10 m | No requirement | Continuous wave (CW) - no modulation, channel spacing ≥ 150 Hz | Person detection and collision avoidance | |
| a2 | 456.9kHz - 457.1kHz |
7 dBµA/m at 10 m | No requirement | Continuous wave (CW) at 457 kHz - no modulation | Emergency detection of buried victims and valuable items | |
| b | 169.4MHz - 169.475MHz |
500 mW e.r.p. | ≤ 10% duty cycle | Not specified | ECC/DEC/(05)02 | Meter Reading. The frequency band is also identified in Annex 1 |
| c1 | 865MHz - 868MHz (note 4) |
500 mW e.r.p. | ≤ 10% duty cycle for network access points ≤ 2.5% duty cycle otherwise Adaptive Power Control (APC) required (note 1) | ≤ 200 kHz | Data networks (note 2). APC is able to reduce the equipment’s ERP from its maximum to ≤ 5 mW. The frequency band is also identified in Annexes 1, 3 and 11 | |
| c2 | 870MHz - 874.4MHz (note 5) |
500 mW e.r.p. | ≤ 10% duty cycle for network access points ≤ 2.5% duty cycle otherwise Adaptive Power Control (APC) required (note 1) | ≤ 200 kHz | Data networks (notes 2, 3 and 8). All nomadic and mobile devices within the data network shall be controlled by a master network access point (NAP). APC is able to reduce the equipment’s ERP from its maximum to ≤ 5 mW. The frequency band is also identified in Annex 1 | |
| c4 | 915MHz - 919.4MHz |
25 mW e.r.p. | ≤ 1% duty cycle | ≤ 600 kHz | Data networks (notes 2 and 8). All nomadic and mobile devices within the data network shall be controlled by a master network access point (NAP). The frequency band is also identified in Annexes 1, 3 and 11 | |
| c3 | 917.3MHz - 918.9MHz (Note 6) |
500 mW e.r.p. | ≤ 10% duty cycle for network access points ≤ 2.5% duty cycle otherwise Adaptive Power Control (APC) required (note 1) | ≤ 200 kHz | Data networks (notes 2 and 8). All nomadic and mobile devices within the data network shall be controlled by a master network access point (NAP). APC is able to reduce the equipment’s ERP from its maximum to ≤ 5 mW. The frequency band is also identified in Annexes 1, 3 and 11 | |
| d | 5725MHz - 5875MHz |
400 mW e.i.r.p. Adaptive Power Control (APC) required | Adequate spectrum sharing mechanisms (e.g. DFS and DAA) shall be implemented (note 7) | ≥ 1 MHz and ≤ 20 MHz | Wireless Industrial Applications (WIA). Registration and/or notification may be required. APC is able to reduce the e.i.r.p. to ≤ 25 mW. The frequency band is also identified in Annex 1 | |
| Note 1 | Alternatively other mitigation techniques which achieve at least an equivalent level of spectrum compatibility. |
| Note 2 | A network access point in a data network is a fixed terrestrial short range device that acts as a connection point for the other short range devices in the data network to service platforms located outside of that data network. The term data network refers to several short range devices, including the network access point, as network components and to the wireless connections between them. |
| Note 3 | Individual authorisation or additional mitigation techniques (e.g. LBT) may be applied to NAP in areas with a high number of NAP. |
| Note 4 | Transmissions only permitted within the frequency ranges 865.6-865.8 MHz, 866.2-866.4 MHz, 866.8-867.0 MHz and 867.4-867.6 MHz. |
| Note 5 | Existing implementations in some countries include frequencies up to 875.6 MHz. See explanations under frequency issues for sub-bands c2) to c4). |
| Note 6 | Transmissions only permitted within the frequency ranges 917.3-917.7 MHz and 918.5-918.9 MHz. |
| Note 7 | DFS is required in the frequency range 5725-5850 MHz to ensure an appropriate protection to the radiolocation service (including frequency hopping radars), DAA is required in the frequency range 5855-5875 MHz for the protection of ITS, in the frequency range 5725-5875 MHz for the protection of BFWA, and in the frequency range 5795-5815 MHz for the protection of TTT applications |
| Note 8 | In some countries, usage may be limited such that installation and operation are performed only by professional users and individual authorisation may be required, e.g. to administer geographical sharing and/or the application of mitigation techniques to ensure protection of radio services. |
Harmonised Standards
To be defined sub-band a1)
EN 300 718 sub-band a2)
EN 300 220 sub-band b)
EN 303 659 (in development) sub-bands c1), c3) and c4)
EN 303 204 sub-band c2)
EN 303 258 sub-band d)
Technical parameters also referred to in the
harmonised standard
Sub-bands c1, c2) and c3:
The harmonised standard should define adequate spectrum sharing mechanisms.
EN 303 204 includes for network access points the requirement to implement LBT.
Frequency issues
Sub-bands c2) to c4):
Use of all or part of sub-bands c2) to c4) may be limited or not authorised for SRD in data networks in some countries where the sub-bands are used for defence / governmental systems. Further, some countries use the sub-bands 873-876 MHz and 918-921 MHz as extended GSM-R frequency bands; therefore geographical restrictions may apply.
Some countries have existing implementations for SRD in data networks in the frequency range 874.4-875.6 MHz. Appendixes 1 and 3 provide the status of national implementations. CEPT administrations should provide information on any more restrictive or more relaxed national measures to ensure Appendixes 1 and 3 are up to date.
EC Decision 2018/1538/EU applies to EU Member States. CEPT administrations should refrain from introducing new SRD uses in 874.4-876 MHz and 919.4-921 MHz. It is recognised that, in several CEPT countries, existing implementations in these frequency ranges are not impacted by Article 3(4) of the EC Decision.
National rules, such as local coordination, may also be needed in order to avoid interference to radio services operating in the adjacent bands.
With regard to sub-bands c2) and c4), the Decision (EU) 2018/1538 as amended harmonises a subset of these frequency bands.