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7dd505413f382a7ee81a0835c26d2ad7 | 102 744-3-2 | 9.4.13 Check_SID_Calc (FUNCTION) | Input: Previously calculated SID value Beam_Delay_Range Output: Check_Value indicating if the SID is valid for use Calculate: Calculate: Calculate: Calculate: ( ) ( ) 488 488 180 sin 42164000 488 180 cos 42164000 ) , , ( ⋅ = ⋅ + ⎟⎟ ⎠ ⎞ ⎜⎜ ⎝ ⎛ ⋅ ⋅ = ⋅ + ⎟⎟ ⎠ ⎞ ⎜⎜ ⎝ ⎛ ⋅ ⋅ = = r StateVecto r StateVecto Long r StateVecto L... |
7dd505413f382a7ee81a0835c26d2ad7 | 102 744-3-2 | 9.4.14 Do_RACH (FUNCTION) | Input: SID Output: Time_Elap |
7dd505413f382a7ee81a0835c26d2ad7 | 102 744-3-2 | 9.4.15 Wait_RNC_Resp (FUNCTION) | Input: N/A Output: Check_Value, signalling if a timing correction was received or not |
7dd505413f382a7ee81a0835c26d2ad7 | 102 744-3-2 | 9.4.16 Check_RNC_Resp (FUNCTION) | Input: RNC_SID, containing the measured timing offset from the RNC Output: Check_Value, signalling if the calculated SID is good enough for use Call TX routine with SID value as input. Burst to be transmitted in the middle of slot, hence with 180 microseconds guard time in each end of burst. The TimingRequired bit shal... |
7dd505413f382a7ee81a0835c26d2ad7 | 102 744-3-2 | 9.4.17 Calc_Req_Con_Slots (FUNCTION) | Input: Beam_Delay_Range Output: Req_5ms, giving how many 5 millisecond slots are required for an un-timed random access burst Req_20ms, giving how many 20 millisecond slots are required for an un-timed random access burst Req_5ms = Beam_Delay_Range ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ = 4 _ _ Req_20ms Range Delay Beam ceil ETSI ETSI TS 102 744... |
7d2e34d5b82f5e97d5397c552f39b57b | 102 757 | 1 Scope | The present document defines an API whose main goal is to to permit MHP or GEM applications to purchase protected content. Several other features can be supported in addition to this main goal including secure messaging and access to smart cards - including ones not related to a conditional access or content protection... |
7d2e34d5b82f5e97d5397c552f39b57b | 102 757 | 2 References | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. • For a specific reference, subsequent revisions do not apply. • Non-specific reference may be made only to a complete document or a part thereof and only in the following cases: - if it is accept... |
7d2e34d5b82f5e97d5397c552f39b57b | 102 757 | 2.1 Normative references | The following referenced documents are indispensable for the application of the present document. For dated references, only the edition cited applies. For non-specific references, the latest edition of the referenced document (including any amendments) applies. [1] Java TV API 1.0, part of ISBN:1-892488-25-6. NOTE: Av... |
7d2e34d5b82f5e97d5397c552f39b57b | 102 757 | 2.2 Informative references | The following referenced documents are not essential to the use of the present document but they assist the user with regard to a particular subject area. For non-specific references, the latest version of the referenced document (including any amendments) applies. [i.1] ETSI ES 201 812: "Digital Video Broadcasting (DV... |
7d2e34d5b82f5e97d5397c552f39b57b | 102 757 | 3 Definitions and abbreviations | |
7d2e34d5b82f5e97d5397c552f39b57b | 102 757 | 3.1 Definitions | For the purposes of the present document, the following terms and definitions apply: API: interface between an application and a particular feature, function or resource of the MHP ETSI ETSI TS 102 757 V1.1.1 (2008-07) 8 |
7d2e34d5b82f5e97d5397c552f39b57b | 102 757 | 3.2 Abbreviations | For the purposes of the present document, the following abbreviations apply: API Application Programming Interface DAVIC Digital Audio Visual Council DVB-SI Digital Video Broadcasting - Service Information MMI Man-Machine Interface |
7d2e34d5b82f5e97d5397c552f39b57b | 102 757 | 4 General | |
7d2e34d5b82f5e97d5397c552f39b57b | 102 757 | 4.1 APIs | The present document requires the presence of the following packages - it.dtt.ca, it.dtt.ca.event, it.dtt.ca.exception, it.dtt.ca.history, it.dtt.ca.ppv, it.dtt.ca.request, it.dtt.ca.response, it.dtt.ca.util. The extent to which these are implemented in any particular deployment of a particular content protection syste... |
7d2e34d5b82f5e97d5397c552f39b57b | 102 757 | 4.2 Platform dependencies | The present document requires the presence of an implementation of either one of the following: • JavaTV 1.0 [1]. • JavaTV 1.1 [2]. The present document also requires the presence of the org.davic.resource.ResourceClient interface defined in DAVIC 1.4.1 part 9 [3] as found in MHP 1.0 [i.1], MHP 1.1 [i.2] or MHP 1.2 [i.... |
7d2e34d5b82f5e97d5397c552f39b57b | 102 757 | 4.3 Throwing RuntimeExceptions | The present document intentionally does not define when RuntimeExceptions (such as SecurityException) are thrown. When methods throw these and the circumstances under which they are thrown is expected to form part of the additional document containing content protection system and deployment specific information, given... |
7d2e34d5b82f5e97d5397c552f39b57b | 102 757 | 4.4 Input and output parameters | Where methods take an array as an input parameter, implementations should take a copy of the array. Where methods return an array, a copy should be returned and modifications to the array should be ignored by the implementation until or unless the array is passed back to the implementation as a parameter to a method ca... |
7d2e34d5b82f5e97d5397c552f39b57b | 102 757 | 5 System integration | |
7d2e34d5b82f5e97d5397c552f39b57b | 102 757 | 5.1 Parental and maturity rating | The solution in the present document, when used in combination with the javax.tv.service.selection package, provides 2 mechanisms for enforcing maturity rating and parental access control. • One provided by the implementation of the javax.tv.service.selection package (or a part of a generic media player called by that ... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 1 Scope | The present document defines the radio reception and transmission requirements for all classes of UE that comply with the Family SL physical layer specifications as defined in ETSI TS 102 744-2-1 [11]. The Family SL radio interface operates in spectrum allocated to mobile satellite services (see ETSI TS 102 744-2-1 [11... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 2 References | |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 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 ar... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 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 in... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 3 Definitions, symbols and abbreviations | |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 3.1 Definitions | For the purposes of the present document, the following terms and definitions apply: Block Error Rate (BLER): probability that a received FEC Block contains uncorrectable error(s) NOTE: In the present document, the term Block Error Rate (BLER) always refers to FEC Blocks. global beam: satellite beam that covers the ful... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 3.2 Symbols | For the purposes of the present document, the symbols given in ETSI TS 102 744-1-4 [9], clause 3 apply. |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 3.3 Abbreviations | For the purposes of the present document, the abbreviations given in ETSI TS 102 744-1-4 [9], clause 3 apply. ETSI ETSI TS 102 744-2-2 V1.1.1 (2015-10) 11 |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 4 General | |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 4.1 UE classes | The requirements for the various UE classes are defined in groups as shown in Table 4.1. Table 4.1: UE classes Group Subgroup UE Class Antenna Type Clause Land Class N/A Class 1 Class 2 Class 3 Land A3 size Land A4 size Land A5 size Clause 5 Extension Class Aeronautical Class 4 Class 6 Class 7 Class 15 Future Aeronauti... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 4.2 RF transceiver general capabilities | The requirements in the following clauses require a UE to provide the following general capabilities: 1) The transceiver shall be designed to operate as a full duplex transceiver supporting the channelisation defined in ETSI TS 102 744-2-1 [11]. 2) The transceiver shall be able to tune to narrow signalling channels usi... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 4.3 Antenna parameters | The terms medium elevation and low elevation shall be understood as follows in the present document: • Low Elevation: 5° ≤ Elevation ≤ 10° • Medium Elevation: 10° < Elevation ≤ 20° ETSI ETSI TS 102 744-2-2 V1.1.1 (2015-10) 12 |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5 Land Class UE requirements | |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.1 Antenna requirements | |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.1.1 Radiation Pattern | Class 1 and 2 UE shall comply with the antenna radiation pattern restrictions as defined in Recommendation ITU-R M.1091 [2]. A Class 3 UE shall meet the following requirement: • G ≤ -5 dBi for θ > 90° where θ and G are as defined as follows: - θ: angle (degrees) between the direction of maximum gain and the direction c... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.1.2 Polarization | Right-hand circular polarization (RHCP) shall be used for receive and transmit directions. |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.1.3 Axial Ratio | The antenna circular polarization axial ratio shall be no greater than the requirements stated in Table 5.1 for a UE within the portion of the UE antenna main beam that could be directed towards the satellite position, taking into account beam pointing tolerances. For all UEs, this value is for antennas in 'free space'... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.1.4 UE antenna pointing loss | Provision shall be made to aid the user in accurately pointing the antenna in the direction of the satellite. The design target is that a user is expected to be able to point the UE to achieve pointing losses with respect to maximum gain in transmit and receive less than those stated in Table 5.2, in a short time with ... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.2 Receiver requirements | |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.2.1 Gain-to-Noise Temperature Ratio | The RF receiving system gain-to-noise-temperature ratio (G/T) shall be in accordance with Table 5.3 for the relevant UE type in the direction of the satellite and under the following simultaneous conditions: 1) clear sky climatic conditions; 2) including noise contribution of the full receiver from antenna to base band... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.2.2 Received Signal Levels | The receiver design shall be such as to ensure full compliance with the performance requirements for the following range of received power flux densities (PFD) at the earth's surface given in Table 5.4. Table 5.4: Power Flux Density per Single Forward Bearer Satellite Beam Minimum Single Carrier PFD (dBW/m2) Maximum Si... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.2.3 Received Phase Noise | The receiver design shall ensure full compliance with the FEC Block Error Rate (BLER) ≤ 1E-3 performance requirements for received signal phase noise impairment stated in Table 5.5. The phase noise is present at the UE antenna at L-band. The phase noise present on a received carrier shall have a single sideband power d... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.2.4 Receiver Channel Tuning | All land class UEs shall calculate the required receive bearer nominal frequency in accordance with ETSI TS 102 744-2-1 [11], clause 5.1. 1) The receiver operational tuning range shall be 1 518,0 - 1 559,0 MHz. 2) The receiver tuning shall be in steps of 1,25 kHz. ETSI ETSI TS 102 744-2-2 V1.1.1 (2015-10) 15 3) The UE ... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.2.5 Received Signal Frequency Offsets | The frequency signal in space shall be within ±500 Hz of the nominal assigned frequency including residual satellite Doppler. Short term frequency variation shall be ±25 Hz. This is based on the satellite Doppler acceleration and on the RAN and satellite short term frequency variation. For clarity, the relative frequen... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.2.6 Receiver Selectivity | The receiver shall employ sufficient pre-detection and post-detection filtering to operate in the presence of interferers adjacent to and within the 34 MHz receive band as outlined in clause 5.2.2. The rejection of all signals in the 1 518 MHz to 1 559 MHz band, excluding a band within ±60 % of the L-band nominal bandw... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.2.7 Receiver Demodulation Characteristics | All land portable class UEs, including Class 1 HDR shall demodulate and decode all the supported forward bearer types and coding rates listed in Table 5.6. Note that Class 3 UE shall demodulate and decode up to code rate H3 for the F80T4.5X-8B bearer. Table 5.6: Supported Bearer types for all Land Portal Class UEs incl... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.2.8 Acquisition and Synchronisation Performances | The UE acquisition performance for initial, cold and warm cases shall meet the values stated in Table 5.7, for all channel impairment conditions defined in clause 5.2.9, and for the appropriate C/No related to the bearer and sub code rate as specified in clauses 5.2.11 and 5.2.11.1. NOTE: The definition of initial, col... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.2.9 Channel Characteristics/Impairments | The UE Land Class channel characteristics and reference impairments are contained in Table 5.8. Table 5.8: Channel Characteristics and Reference Impairments for UE Land Class Test Parameters Test Conditions C/M 15 dB Fading Bandwidth 20 Hz Freq Offset Refer to acquisition performance in clause 5.2.8 Continuous receive ... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.2.10 Received C/No Measurement Accuracy | In AWGN condition, on the forward link T1 and T4.5 rate bearers, 90 % of C/No estimates shall lie within ±0,5 dB of the C/No of the UE receive chain over the full range for the particular bearer (lowest code rate up to the highest code rate +6 dB). This shall be measured across an averaging of less than or equal to 10 ... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.2.11 Demodulator Performance | |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.2.11.0 General | The UE shall acquire a single global bulletin board bearer (F80T0.25Q-1B) to the point of demodulating the global bulletin board bearer within 10 seconds. The UE receiver performance (BLER and frame acquisition) shall be met in the presence of the following degradations: 1) Received Signal Phase Noise: Refer to Table 5... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.2.11.1 Demodulator C/No and BLER Performance | For all the forward bearer types and subtypes as defined in clause 5.2.7, the UE demodulator shall achieve an FEC Block Error Rate (BLER) ≤ 1E-3 with the required C/No as defined in ETSI TS 102 744-2-1 [11] of this multi-part deliverable, plus allowance for implementation loss for non fading case from Table 5.9. This a... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3 Transmitter requirements | |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.1 EIRP | |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.1.0 General | The UE nominal transmit EIRP shall meet the requirement as stated in Table 5.10 at any frequency in the transmit band. If applicable, this requirement shall also apply with an external antenna (i.e. cable loss is included). Table 5.10: Nominal UE EIRP (RHCP) UE Class Nominal UE EIRP (dBW) Class 1 20,0 Class 2 15,1 Clas... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.1.1 Power Masks | |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.1.1.0 General | The following clause applies to all bearers as specified in ETSI TS 102 744-2-1 [11]. For UE classes 1, 2, 3 and 1 HDR, the transmit EIRP shall meet the burst power mask for either π/4 QPSK or 4/16/32/64-QAM as defined in clauses 5.3.1.1.1 to 5.3.1.1.3. The requirements in clause 5.3.8 shall be met while ramping the ou... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.1.1.1 Power Mask - R80T0.5Q-1B/R80T1Q-1B | The UE shall comply with the power masks for R80 bearers depicted in Figures 5.1 to 5.4. If the Preamble is opted for transmission by the RNC (see ETSI TS 102 744-3-1 [12]), the signal level for the Preamble in Figures 5.1 and 5.2 shall be within Nominal EIRP level +1 dB within 24 to 34 symbol times for the R80T0.5Q-1B... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.1.1.2 Power Mask - FR80T2.5 and FR80T5 | The UE shall comply with the power masks for FR80T2.5 and FR80T5 bearers as depicted in Figures 5.5 and 5.6 respectively. The ramp up is only applicable when the CW is present. Only the last 80 ms frame on the same bearer shall ramp down as indicated in the burst masks. ETSI ETSI TS 102 744-2-2 V1.1.1 (2015-10) 22 If t... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.1.1.3 Power Mask - All other bearers | Consecutive bursts on the same bearer still need to ramp down, as indicated in the burst mask shown in Figure 5.7 and defined in Table 5.11. The burst power mask is divided into three main sections. The first section describes the raw over sampled burst power from the beginning of the burst slot to the beginning of the... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.1.2 EIRP Congruency with receive G/T | The direction of maximum EIRP shall be congruent with the receive maximum gain direction within 10 percent of the antenna 3 dB half cone angle. NOTE: This will ensure that for any G/T reduction due to mispointing, the EIRP reduction will not be much different from the G/T reduction. |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.1.3 EIRP Stability | The EIRP stability for subsequent bursts (for the duration of time between EIRP setting changes) shall be ±0,5 dB from the median (half way between upper and lower measured EIRP) EIRP over 1 000 subsequent bursts. The first burst transmitted by the UE after any period of non-transmission exceeding two seconds shall be ... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.1.4 EIRP setting accuracy | The EIRP setting range, step size and setting accuracy shall meet the requirements stated in Table 5.12. The upper value of the EIRP setting range corresponds to the nominal EIRP. The UE shall support burst-to-burst power regulation within the limits and with the step size defined in Table 5.12. Table 5.12: EIRP settin... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.2 Transmit Power Spectral Density Mask | In order to limit contributions from ACI, the mask shown in Figure 5.8 and defined in Table 5.13 shall be applicable for both pi/4 QPSK and 16 QAM modulated bearers transmitted by Class 1 or Class 2 UE at any output EIRP. The same mask shown in Figure 5.8 shall also be applicable for 4 QAM, 32 QAM and 64 QAM modulated ... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.3 Transmitter Duty Cycle | The UE transmit system shall satisfy the performance requirements under all conditions, including continuous operation at the maximum power setting. Class 3 UE may have operational restrictions for time at the maximum power setting. -50 -45 -40 -35 -30 -25 -20 -15 Frequency Offset From Carrier Centre Frequency (kHz) Re... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.4 Transmitter Off level | The non-transmitting state includes the 'idle' state, covering periods when the UE is not engaged in traffic, and periods between bursts, both reserved and contention slots. For this purpose only, idle is defined as when the UE has not transmitted for more than 2 seconds. When class 1 or class 2 UE transmitter is in th... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.5 Transmitter Modulation Characteristics | Class 1 (Briefcase), 2 (Notebook), 3 (Pocket) and Class 1 HDR UEs shall support all the applicable bearer types and subtypes specified in Tables 5.15 and 5.16. Class 1 HDR UEs shall support wrap around of control index as defined in ETSI TS 102 77-3-1 [12]. Table 5.15: Summary of Return Bearer Types Identifier Burst Du... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.6 Transmitter Phase Noise | The phase noise induced on the transmitted L-band carrier (including that generated by the modulator) shall have a single sideband power density continuous spectrum not exceeding the limit mask defined in Table 5.17. NOTE: The "single sideband power density spectrum" is defined as the power spectrum due to phase noise ... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.7 Modulator Performance | |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.7.1 Transmit burst Error Vector Magnitude | The transmit burst mean squared Error Vector Magnitude after the HPA shall not exceed the values shown in Table 5.19. Table 5.19: Mean squared EVM requirements Modulation Mean squared EVM Pi/4 QPSK 0,03 16-QAM 0,01 4-QAM 0,03 32-QAM 0,004 64-QAM 0,004 |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.7.2 Definition of mean squared EVM | The Error Vector Magnitude (EVM) is defined as the Euclidian distance between an actual demodulated soft-symbol and the expected demodulated signal, at the output of a noise-free linear channel of the same average delay and power gain as the test signal and with perfect estimation and matched filtering. This is measure... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.8 Spurious Radiated Emissions | |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.8.0 General | Class 1 and Class 2 UEs shall comply with the ETSI EN 301 444 standard [4] and with the requirements of clause 5.3.8.1. Class 3 UEs shall comply with the ETSI EN 301 681 standard [5] and with the requirements of clause 5.3.8.1. These requirements shall include compliance with all in-band and out-of-band unwanted emissi... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.8.1 Spurious emission requirements in the 1 559 MHz to 1 610 MHz band | All UEs shall ensure that in any operating mode and in any direction, the spurious EIRP shall not exceed the limits imposed for the protection of aeronautical navigation and automated approach systems using augmented/overlaid GNSS (e.g. GPS and Glonass systems) as follows: Wideband limit: a) A maximum EIRP density of -... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.9 Transmit Channel Tuning | The UE shall determine the transmit channel frequency in accordance with ETSI TS 102 744-2-1 [11], clause 6.1. 1) The transmitter operational tuning range shall be 1 626,5 MHz to 1 660,5 MHz and 1 668,0 MHz to 1 675,0 MHz. 2) Transmitter tuning shall be in steps of 1,25 kHz. 3) For bearers without an 80 ms interleaver,... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.10 Transmitter Frequency Accuracy and Stability | The UE shall derive its carrier and clock frequency from the received forward bearer to meet the frequency accuracy requirements. • The UE frequency stability, as measured from the transmitted signal from the UE, when receiving a stable and continuous data channel, shall be less than ±150 Hz for > 99,7 % of bursts. For... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.3.11 Timing | The overall transmit timing accuracy (for burst and continuous transmissions), for all timed access shall be ≤ 10 microseconds within a 3 sigma (99,8 %) value (this includes timing uncertainty in both receive and transmit chain). ETSI ETSI TS 102 744-2-2 V1.1.1 (2015-10) 31 The timing offset levels are determined by th... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.4 Positioning requirements | |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.4.1 UE Positioning Requirements | Each UE shall support positioning reporting via GPS or equivalent method. When GPS supplied UE position estimate is available, network initiated position shall result in longitude and latitude being reported by the UE to an accuracy of ±100 m. It shall be possible to present GPS co-ordinate information on the UE MMI. I... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 5.4.2 GPS Receiver Unit | The UE shall contain an omni-directional (or near hemispherical) GPS antenna (or any other antenna providing equivalent performance over the UE field of view) to support location-based services, terminal mobility management and spot beam selection/reselection, etc. The GPS receiver shall allow accurate (i.e. within ±10... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6 Aeronautical Class UE Requirements | |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.0 General | An aeronautical user terminal may be logically thought of as composed of three main subsystems: the antenna system which consists of the radome, the antenna radiating elements, the tracking/pointing mechanism (if applicable) and associated feeder networks and power supply; a combined Diplexer/Low Noise Amplifier Unit (... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.1 Antenna requirements | |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.1.1 Radiation pattern | The gain at both the receive and transmit frequencies shall be such that the G/T requirements specified in clause 6.2.1 and the EIRP requirements specified in clause 6.3.1 are satisfied. For all antenna steering angles, the Class 6 UE shall discriminate in antenna gain against satellites spaced 45º or more in longitude... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.1.2 Polarization | The requirements of clause 5.1.2 shall apply. |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.1.3 Axial Ratio | The antenna circular polarization axial ratio shall be no greater than the requirements stated in Table 6.1 for UE within the portion of the UE antenna main beam that could be directed towards the satellite position (referenced as on-axis). Table 6.1: UE Maximum Axial Ratio UE Class Axial Ratio Requirement Class 6 (Aer... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.1.4 UE antenna pointing loss | The UE shall automatically keep the antenna pointed towards the appropriate satellite with sufficient accuracy to ensure the relevant G/T and EIRP requirements are satisfied continuously under all appropriate aircraft operations. |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.1.5 Carrier-to-Multipath Discrimination | For all Aeronautical Class UEs, the antenna shall attenuate the reflected signal from the sea surface relative to the main signal in the direction of the satellite, so as to achieve a minimum C/M of 10 dB at 5° elevation and 12 dB at 20° elevation. The compliance shall be estimated with the aircraft in horizontal fligh... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.1.6 Antenna Control | The Aeronautical Class 6 and Class 7 UEs shall control the antenna pointing direction based on GNSS or IRS position information and the aircraft attitude information provided by the aircraft navigation systems. NOTE: The position information may be provided by an internal GNSS unit. The pointing function shall operate ... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.1.7 High-Gain and Intermediate-Gain Antenna Reported Gain Accuracy | For Aeronautical Class UE implementations using power control mechanisms based on antenna reported gain, the antenna reported gain sent from the antenna to the SDU shall be based on the minimum gain value of the antenna measured at ambient for the highest, lowest and central frequencies in the transmit band for that po... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.1.8 Operating Frequency | The antenna shall operate over the frequency ranges 1 518,0 to 1 559,0 MHz (receive) and 1 626,5 to 1 660,5 MHz and 1 668,0 - 1 675,0 MHz (transmit). |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.1.9 Antenna-switching performance | Aeronautical Class UE installations that require more than one antenna in order to satisfy the G/T and EIRP requirements over the declared coverage volume (see Annex A) shall switch between antennas automatically as necessary. During switchover, the time in which the antenna subsystem fails to meet its performance requ... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.1.10 Beam-steering performance | For a Aeronautical Class UE antenna where the beam steering is performed in discrete steps (typically using a phased array), the signal shall not be interrupted by more than 50 microseconds when switching between any adjacent UE antenna beam positions. For a non Class 4 UE, beam-steering transitions between adjacent be... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.2 Receiver requirements | |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.2.1 Gain-to-Noise Temperature Ratio | The RF receiving system gain to noise-temperature ratio (G/T) shall be in accordance with Table 6.2 for the relevant UE type in the direction of the satellite and under the simultaneous conditions specified in clause 5.2.1 together with the following additional requirements: 1) With residual antenna pointing errors, in... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.2.2 Received Signal Levels | The requirements of clause 5.2.2 shall apply. |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.2.3 Received Phase Noise | The requirements of clause 5.2.3 shall apply. |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.2.4 Receiver Channel Tuning | The requirements of clause 5.2.4 shall apply. ETSI ETSI TS 102 744-2-2 V1.1.1 (2015-10) 35 |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.2.5 Received Signal Frequency Offsets | |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.2.5.0 General | The frequency signal in the air will be within ±500 Hz of the nominal assigned frequency including residual satellite Doppler, but excluding any Doppler frequency induced due to UE movement. Short term frequency variation will be ±25 Hz. This is based on the satellite Doppler acceleration and short-term frequency varia... |
c212b3c2a649d3c5b19acc4f8622fb67 | 102 744-2-2 | 6.2.5.1 Compensation for Doppler Frequency Offset. | Since Aeronautical Class UEs when in flight move at considerable speed, frequency changes due to Doppler effects of the aircraft motion shall be compensated for by the UE. The compensation shall be adequate for the declared operating conditions of the UE. A recommended method of Doppler frequency compensation is that e... |
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