{
  "url": "https://openlegislation.uk/eu-decision-2020-636/annex",
  "json_url": "https://openlegislation.uk/eu-decision-2020-636/annex.json",
  "legislation": "eudn/2020/636",
  "legislation_title": "Commission Implementing Decision (EU) 2020/636 of 8 May 2020 amending Decision 2008/477/EC as regards an update of relevant technical conditions applicable to the 2 500–2 690 MHz frequency band (notified under document C(2020) 2831) (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2020-636",
  "path": "annex",
  "kind": "annex",
  "number": null,
  "heading": null,
  "text": "‘ANNEX\nPARAMETERS REFERRED TO IN ARTICLE 2\nA.\nDEFINITIONS\nActive antenna systems (AAS) means a base station and an antenna system where the amplitude and/or phase between antenna elements is continually adjusted resulting in an antenna pattern that varies in response to short term changes in the radio environment. This excludes long-term beam shaping such as fixed electrical down tilt. In AAS base stations the antenna system is integrated as part of the base station system or product.\nNon-active antenna systems (non-AAS) means a base station and an antenna system that provides one or more antenna connectors, which are connected to one or more separately designed passive antenna elements to radiate radio waves. The amplitude and phase of the signals to the antenna elements is not continually adjusted in response to short term changes in the radio environment.\nSynchronised operation means operation of two or more different time division duplex (TDD) networks, where simultaneous uplink (UL) and downlink (DL) transmissions do not occur, that is at any given moment in time either all networks transmit in downlink or all networks transmit in uplink. This requires the alignment of all DL and UL transmissions for all TDD networks involved as well as synchronising the beginning of the frame across all networks.\nUnsynchronised operation means operation of two or more different TDD networks, where at any given moment in time at least one network transmits in DL while at least one network transmits in UL. This might happen if the TDD networks either do not align all DL and UL transmissions or do not synchronise at the beginning of the frame.\nSemi-synchronised operation means operation of two or more different TDD networks, where part of the frame is consistent with synchronised operation, while the remaining portion of the frame is consistent with unsynchronised operation. This requires the adoption of a frame structure for all TDD networks involved, including slots where the UL/DL direction is not specified, as well as synchronising the beginning of the frame across all networks.\nEquivalent isotropically radiated power (EIRP) means the product of the power supplied to the antenna and the antenna gain in a given direction relative to an isotropic antenna (absolute or isotropic gain).\nTotal radiated power (TRP) means a measure of how much power a composite antenna radiates. It equals the total conducted power input into the antenna array system less any losses in the antenna array system. TRP means the integral of the power transmitted in different directions over the entire radiation sphere as shown in the formula:\nwhere P(θ,φ) is the power radiated by an antenna array system in direction (θ,φ) given by the formula:\nwhere PTx denotes the conducted power (measured in Watts), which is input to the array system, and g(θ,φ) denotes the array system’s directional gain along the (θ, φ) direction.\nB.\nGENERAL PARAMETERS\n(1)\nThe assigned block size shall be in multiples of 5,0 MHz;\n(2)\nWithin the 2 500–2 690 MHz frequency band, the duplex spacing for Frequency Division Duplex operation shall be 120 MHz with terminal station transmission (uplink) located in the lower part of the band starting at 2 500 MHz and ending at 2 570 MHz, and base station transmission (downlink) located in the upper part of the band starting at 2 620 MHz and ending at 2 690 MHz;\n(3)\nThe 2 570–2 620 MHz frequency sub-band shall be used for Time Division Duplex or for base station transmission (“downlink-only”). Any guard band required to ensure compatibility of frequency use at either the 2 570 MHz or the 2 620 MHz boundary shall be decided on a national basis and taken within the 2 570–2 620 MHz frequency sub-band.\nC.\nTECHNICAL CONDITIONS FOR BASE STATIONS – BLOCK EDGE MASK\nThe following technical parameters for base stations, called Block Edge Mask (BEM), are an essential component of conditions necessary to ensure co-existence between neighbouring networks, in the absence of bilateral or multilateral agreements between operators of such neighbouring networks. Less stringent technical parameters, if agreed among all affected operators of such networks, may also be used provided that these operators continue to comply with the technical conditions applicable for the protection of other services, applications or networks and with obligations resulting from cross-border coordination.\nThe BEM consists of several elements given in Table 1. The in-block power limit is applied to a block assigned to an operator. The baseline power limit, designed to protect the spectrum of other operators within the 2,6 GHz frequency band, and the transitional region power limit, enabling filter roll-off from the in-block to the baseline power limit, represent out-of-block power elements.\nPower limits are provided separately for non-AAS and AAS. For non-AAS, the power limits apply to the mean EIRP. For AAS, the power limits apply to the mean TRP. The mean EIRP or mean TRP are measured by averaging over a time interval and over a measurement frequency bandwidth. In the time domain, the mean EIRP or mean TRP is averaged over the active portions of signal bursts and corresponds to a single power control setting. In the frequency domain, the mean EIRP or mean TRP is determined over the measurement frequency bandwidth as given in Tables 2–8 below. In general, and unless stated otherwise, the BEM power limits correspond to the aggregate power radiated by the relevant device including all transmit antennas, except in the case of baseline and transition requirements for non-AAS base stations, which are specified per antenna.\nThe additional baseline limit for FDD AAS base stations is an out-of-block power limit which may be applied in order to reduce the necessary coordination zone with radio astronomy service (RAS) stations and protect the RAS in the adjacent frequency band 2 690–2 700 MHz in specific geographical areas.\nMeasures applicable at national level, such as pfd limits, in order to protect the various types of radars operating above 2 700 MHz would remain applicable, noting that it may be more complex for operators to comply with the pfd limit since AAS systems cannot be fitted with additional external filters.\nEquipment operating in this band may also make use of EIRP or TRP limits other than those set out below, provided that appropriate mitigation techniques are applied which comply with Directive 2014/53/EU of the European Parliament and of the Council and which offer at least an equivalent level of protection to that provided by the essential requirements of that Directive.\nExplanatory note to the Figure\nThe applicable BEM limit is always the one immediately above the respective number (i.e. 1 to 5).\nTable 1\nDefinition of BEM elements\nBEM Element\nDefinition\nIn-block\nRefers to a block for which the BEM is derived.\nBaseline\nSpectrum within 2 500–2 690 MHz used for WBB ECS, with the exception of the block assigned to the operator and the corresponding transitional regions.\nTransitional region\nSpectrum within 0 to 5,0 MHz below and 0 to 5,0 MHz above the block assigned to the operator. Transitional regions do not apply to TDD blocks assigned to other operators, unless networks are synchronised. The transitional regions do not apply below 2 500 MHz or above 2 690 MHz.\nAdditional baseline\nSpectrum between 2 690–2 700 MHz.\nCoexistence of geographically adjacent networks using also adjacent frequency blocks within the 2,6 GHz frequency band may need specific measures to mitigate radio interference. Typically, a frequency separation of at least 5 MHz should be applied in the case of two adjacent unsynchronised TDD networks or a TDD network adjacent to an FDD network. Such a separation should be implemented by either leaving a 5 MHz block unused as a guard block, or through usage of such a 5 MHz block under more restrictive BEM parameters (restricted spectrum block). Any usage of a 5 MHz guard block would be subject to an increased risk of interference.\nTo achieve coexistence of adjacent FDD and TDD networks, the restricted spectrum block 2 570–2 575 MHz (except in TDD uplink-only operation in this block) should be introduced for all adjacent configurations of (i) FDD-AAS to TDD-non-AAS; and (ii) FDD-non-AAS to TDD-AAS. Furthermore, the frequency block 2 615–2 620 MHz, which is immediately adjacent to the FDD downlink, may suffer an increased risk of interference due to the emissions from the FDD downlink.\nThe BEM for a spectrum block, other than a restricted spectrum block, is built up by combining Tables 2, 3 and 4 in such a way that the limit for each frequency is given by the higher value out of the baseline and the in-block power limits.\nThe BEM for a restricted spectrum block is built up by combining Tables 3 and 5 in such a way that the limit for each frequency is given by the higher value out of the baseline and the in-block power limits.\nFurthermore, for base stations with restrictions on antenna placement, i.e. where base station antennas are placed indoors or where the antenna height is below a certain height, a Member State may use alternative BEM power limits on a national basis. In these cases the BEM for a restricted spectrum block for non-AAS may be in line with Table 6, provided that at geographical borders to other Member States, Table 3 applies and that Table 5 remains valid nationwide. For AAS with restrictions on antenna placement, alternative national measures compared to Table 3 or Table 5 may be required on a case-by-case basis.\nTable 2\nIn-block power limit for non-AAS and AAS base stations\nIn a multi-sector base station, the radiated power limit applies to each one of the individual sectors.\nBEM element\nNon-AAS EIRP limit\nAAS TRP limit\nIn-block\nNot obligatory.\nIn case an upper limit is set by a Member State, a value between 61dBm/5MHz and 68 dBm/5 MHz per antenna may be applied.\nNot obligatory.\nIn case an upper limit is set by a Member State, a value between 53dBm/5MHz and 60 dBm/5 MHz per cell may be applied.\nTable 3\nBaseline power limit for non-AAS and AAS base stations\nIn a multi-sector base station, the radiated power limit applies to each one of the individual sectors.\nIntroduction of FDD AAS does not impact the downlink-only usage condition for non-AAS/AAS.\nWhen applied for the protection of spectrum used for downlink transmissions, this baseline limit is based on the assumption that the emissions come from a macro base station. It should be noted that small-area wireless access points (small cells) may be deployed at lower heights and thus closer to terminal stations, which can result in higher levels of interference if the above power limits are used.\nBEM element\nFrequency range\nNon-AAS maximum mean EIRP limit per antenna\nAAS maximum mean TRP limit per cell\nBaseline\nFDD downlink;\nTDD blocks synchronised with the TDD block under consideration;\nTDD blocks used for downlink-only;\nThe range 2 615–2 620 MHz.\n+ 4 dBm/MHz\n+ 5 dBm/MHz\nFrequencies in the 2 500–2 690 MHz frequency band not covered by the definition in the row above.\n– 45 dBm/MHz\n– 52 dBm/MHz\nExplanatory note to Table 3\nBoth the EIRP and TRP limits are integrated over a bandwidth of 1 MHz.\nTable 4\nTransitional region power limit for non-AAS and AAS base stations\nIn a multi-sector base station, the radiated power limit applies to each one of the individual sectors.\nThis limit is based on the assumption that the emissions come from a macro base station. It should be noted that small-area wireless access points (small cells) may be deployed at lower heights and thus closer to terminal stations, which can result in higher levels of interference if this power limit is used. For such cases, Member States may establish a lower limit on a national level.\nBEM element\nFrequency range\nNon-AAS maximum mean EIRP limit per antenna\nAAS maximum mean TRP limit per cell\nTransitional region\n-5,0 to 0 MHz offset from lower block edge, or 0 to 5,0 MHz offset from upper block edge\n+ 16 dBm/5 MHz\n+ 16 dBm/5 MHz\nTable 5\nIn-block power limit for non-AAS and AAS base stations for restricted block\nIn a multi-sector base station, the radiated power limit applies to each one of the individual sectors.\nIt is noted that in some deployment scenarios this limit may not guarantee interference-free uplink operation in adjacent channels, although this would typically be mitigated by building penetration loss and/or difference in antenna height. Other mitigation methods may also be applied on a national level.\nBEM element\nFrequency range\nNon-AAS EIRP limit per antenna\nAAS TRP limit per cell\nIn-block\nRestricted Block spectrum\n+ 25 dBm/5 MHz\n+ 22 dBm/5 MHz\nTable 6\nPower limits for restricted block for non-AAS base stations with additional restrictions on antenna placement\nBEM element\nFrequency range\nMaximum mean EIRP limit\nBaseline\nLower band edge of 2 500 MHz to -5,0 MHz offset from lower block edge, or 5,0 MHz offset from upper block edge to upper band edge of 2 690 MHz\n– 22 dBm/MHz\nTransitional region\n-5,0 to 0 MHz offset from lower block edge, or 0 to 5,0 MHz offset from upper block edge\n– 6 dBm/5 MHz\nTable 7\nAdditional baseline power limit for FDD AAS base stations with regard to Radio Astronomy Service\nCase A: This limit yields a reduced coordination zone with respect to RAS stations.\nCase B: For situations where additional baseline is not considered necessary by the concerned Member State (e.g. where there is no nearby RAS station or situation where no coordination zone is required).\nBEM element\nFrequency range\nCase\nTRP power limit per cell\nAdditional baseline\n2 690–2 700 MHz\nA\n+ 3 dBm/10 MHz\nB\nNot applicable\nExplanatory note to Table 7\nThese power limits may be applied to reduce the size of the coordination zone with RAS in specific geographical areas. Depending on the size of the necessary coordination zone to protect RAS station(s), cross border coordination may also be necessary. Additional measures may be needed on a national basis in order to protect RAS stations.\nD.\nTECHNICAL CONDITIONS FOR TERMINAL STATIONS\nTable 8\nIn-block power limits for terminal stations\nNote: EIRP should be used for fixed or installed terminal stations and the TRP should be used for the mobile or nomadic terminal stations.\nBEM element\nMaximum mean EIRP limit (including Automatic Transmitter Power Control range)\nMaximum mean TRP limit (including Automatic Transmitter Power Control range)\nIn-block\n+ 35 dBm/5 MHz\n+ 31 dBm/5 MHz\n’",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "TRP is a measure of how much power the antenna actually radiates. EIRP and TRP are equivalent for isotropic antennas."
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "The actual measurement bandwidth of the measurement equipment, used for purposes of compliance testing, may be smaller than the measurement bandwidth provided in those tables."
    },
    {
      "type": "footnote",
      "label": "f3",
      "text": "Directive 2014/53/EU of the European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC (OJ L 153, 22.5.2014, p. 62)."
    },
    {
      "type": "footnote",
      "label": "f4",
      "text": "In a multi-sector base station, the radiated power limit applies to each one of the individual sectors."
    },
    {
      "type": "footnote",
      "label": "f5",
      "text": "In a multi-sector base station, the radiated power limit applies to each one of the individual sectors."
    },
    {
      "type": "footnote",
      "label": "f6",
      "text": "Introduction of FDD AAS does not impact the downlink-only usage condition for non-AAS/AAS."
    },
    {
      "type": "footnote",
      "label": "f7",
      "text": "When applied for the protection of spectrum used for downlink transmissions, this baseline limit is based on the assumption that the emissions come from a macro base station. It should be noted that small-area wireless access points (small cells) may be deployed at lower heights and thus closer to terminal stations, which can result in higher levels of interference if the above power limits are used."
    },
    {
      "type": "footnote",
      "label": "f8",
      "text": "In a multi-sector base station, the radiated power limit applies to each one of the individual sectors."
    },
    {
      "type": "footnote",
      "label": "f9",
      "text": "This limit is based on the assumption that the emissions come from a macro base station. It should be noted that small-area wireless access points (small cells) may be deployed at lower heights and thus closer to terminal stations, which can result in higher levels of interference if this power limit is used. For such cases, Member States may establish a lower limit on a national level."
    },
    {
      "type": "footnote",
      "label": "f10",
      "text": "In a multi-sector base station, the radiated power limit applies to each one of the individual sectors."
    },
    {
      "type": "footnote",
      "label": "f11",
      "text": "It is noted that in some deployment scenarios this limit may not guarantee interference-free uplink operation in adjacent channels, although this would typically be mitigated by building penetration loss and/or difference in antenna height. Other mitigation methods may also be applied on a national level."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2020/636/annex",
    "retrieved_at": "2026-11-01T15:12:16.545573+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}