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7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 8.4 Future Extension Frames (FEF) | Future Extension Frame (FEF) insertion enables carriage of frames defined in a future extension of the DVB-T2 broadcasting system in the same multiplex as regular T2-frames. The use of Future Extension Frames is optional. A Future Extension Frame may carry data in way unknown to a DVB-T2 receiver addressing the present... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 8.5 Frequency Interleaver | The purpose of the Frequency Interleaver, operating on the data cells of one OFDM symbol, is to map the data cells from the Frame Builder onto the Ndata available data carriers in each symbol. Ndata = CP2 for the P2 symbol(s), Ndata = Cdata for the normal symbols (see clause 8.3.2), and Ndata = NFC for the Frame-Closin... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9 OFDM Generation | |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.0 Overview | The function of the OFDM generation module is to take the cells produced by the Frame Builder, as frequency domain coefficients, to insert the relevant reference information, known as pilots, which allow the receiver to compensate for the distortions introduced by the transmission channel, and to produce from this the ... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.1 MISO Processing | All symbols of the DVB-T2 signal, except as described in clause 8.3.7, may have MISO processing applied on cell level. It is assumed that all DVB-T2 receivers shall be able to receive signals with MISO processing applied. MISO processing consists of taking the input data cells and producing two similar sets of data cel... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2 Pilot insertion | |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.1 Introduction | Various cells within the OFDM frame are modulated with reference information whose transmitted value is known to the receiver. Cells containing reference information are transmitted at "boosted" power level. The information transmitted in these cells are Scattered, Continual, Edge, P2 or Frame-Closing Pilot cells. The ... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.2 Definition of the reference sequence | |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.2.0 Overview | The pilots are modulated according to a reference sequence, rl,k, where l and k are the symbol and carrier indices as previously defined. The reference sequence is derived from a symbol level PRBS, wk (see clause 9.2.2.1) and a frame level PN sequence, pnl (see clause 9.2.2.2). This reference sequence is applied to all... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.2.1 Symbol level | The symbol level PRBS sequence, wi is generated according to figure 50. The shift register is initialized with all '1's so that the sequence begins w0, w1, w2… = 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, … Figure 50: Generation of PRBS sequence The polynomial for the PRBS generator shall be: X11 + X2 + 1 (see figure 50) N... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.2.2 Frame level | Each value of the frame-level PN sequence is applied to one OFDM symbol of the T2-frame. The length of the frame level PN sequence NPN is therefore equal to the T2-frame length LF (see clause 8.3.1) i.e. the number of symbols in the T2-frame excluding P1. Table 56 shows the maximum length of PN sequence for different F... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.3 Scattered Pilot insertion | |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.3.0 Overview | Reference information, taken from the reference sequence, is transmitted in Scattered Pilot cells in every symbol except P1, P2 and the Frame-Closing Symbol (if applicable) of the T2-frame. The locations of the Scattered Pilots are defined in clause 9.2.3.1, their amplitudes are defined in clause 9.2.3.2 and their modu... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.3.1 Locations of the Scattered Pilots | A given carrier k of the OFDM signal on a given symbol l will be a Scattered Pilot if the appropriate equation below is satisfied: ( x ) = ( ) normal carrier mode − ( x ) = ( ) extended carrier mode where: DX, DY are defined in table 58: k ∈ [Kmin; Kmax]; and l ∈ [NP2; LF−2] when there is... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.3.2 Amplitudes of the Scattered Pilots | The amplitudes of the Scattered Pilots, ASP, depend on the Scattered Pilot Pattern as shown in table 61. ETSI ETSI TS 102 755 V1.1.1 (2023-02) 115 Table 61: Amplitudes of the Scattered Pilots Scattered Pilot Pattern Amplitude (ASP) Equivalent Boost (dB) PP1, PP2 4/3 2,5 PP3, PP4 7/4 4,9 PP5, PP6, PP7, PP8 7/3 7,4 |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.3.3 Modulation of the Scattered Pilots | The phases of the Scattered Pilots are derived from the reference sequence given in clause 9.2.2. The modulation value of the Scattered Pilots is given by: Re{cm,l,k} = 2 ASP (1/2 − rl,k) Im{cm,l,k } = 0 where ASP is as defined in clause 9.2.3.2, rl,k is defined in clause 9.2.2, m is the T2-frame index, k is the freque... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.4 Continual Pilot insertion | |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.4.0 Overview | In addition to the Scattered Pilots described above, a number of Continual Pilots are inserted in every symbol of the frame except for P1 and P2 and the Frame-Closing Symbol (if any). The number and location of Continual Pilots depends on both the FFT size and Scattered Pilot Pattern PP1 - PP8 in use (see clause 9.2.3)... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.4.1 Locations of the Continual Pilots | The Continual Pilot locations are taken from one or more "CP groups" depending on the FFT mode. Table 62 indicates which CP groups are used in each FFT mode. The pilot locations belonging to each CP group depend on the Scattered Pilot Pattern in use; table G.1 gives the carrier indices ki,32K for each Pilot Pattern in ... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.4.2 Locations of additional Continual Pilots in extended carrier mode | In extended carrier mode, extra Continual Pilots are added to those defined in the previous clause. The carrier indices k for the additional Continual Pilots are given in table G.2 (see annex G) for each FFT size and Scattered Pilot Pattern. |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.4.3 Amplitudes of the Continual Pilots | The Continual Pilots are transmitted at boosted power levels, where the boosting depends on the FFT size. Table 63 gives the modulation amplitude ACP for each FFT size. ETSI ETSI TS 102 755 V1.1.1 (2023-02) 116 Table 63: Boosting for the Continual Pilots FFT size 1K 2K 4K 8K 16K 32K ACP 4/3 4/3 (4√2)/3 8/3 8/3 8/3 When... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.4.4 Modulation of the Continual Pilots | The phases of the Continual Pilots are derived from the reference sequence given in clause 9.2.2. The modulation value for the Continual Pilots is given by: Re{cm,l,k} = 2 ACP (1/2 − rl,k) Im{cm,l,k } = 0. where ACP is as defined in clause 9.2.4.3. |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.5 Edge Pilot insertion | The edge carriers, carriers k = Kmin and k = Kmax, are Edge Pilots (EPs) in every symbol except for the P1 and P2 symbol(s). They are inserted in order to allow frequency interpolation up to the edge of the spectrum. The modulation of these cells is exactly the same as for the Scattered Pilots, as defined in clause 9.2... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.6 P2 Pilot insertion | |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.6.1 Locations of the P2 Pilots | In 32K SISO mode, cells in the P2 symbol(s) for which k mod 6 = 0 are P2 Pilots. In all other modes (including 32K MISO), cells in the P2 symbol(s) for which k mod 3 = 0 are P2 Pilots. In extended carrier mode, all cells for which Kmin ≤ k < Kmin + Kext and for which Kmax − Kext < k ≤ Kmax are also P2 Pilots. |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.6.2 Amplitudes of the P2 Pilots | The pilot cells in the P2 symbol(s) are transmitted at boosted power levels. Table 64 gives the modulation amplitude AP2 for the P2 Pilots. Table 64: Amplitude of P2 Pilots Mode AP2 32K SISO 5 37 All other modes (including 32K MISO) 5 31 ETSI ETSI TS 102 755 V1.1.1 (2023-02) 117 |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.6.3 Modulation of the P2 Pilots | The phases of the P2 Pilots are derived from the reference sequence given in clause 9.2.2. The corresponding modulation is given by: Re{cm,l,k} = 2 AP2 (1/2 − rl,k) Im{cm,l,k} = 0 where m is the T2-frame index, k is the frequency index of the carriers and l is the symbol index. |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.7 Insertion of Frame-Closing Pilots | |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.7.0 Overview | When any of the combinations of FFT size, Guard Interval and Scattered Pilot Pattern listed in table 65 (for SISO mode) is used, the last symbol of the frame is a special Frame-Closing Symbol (see also clause 8.3.2). Frame-Closing Symbols are always used in MISO mode, except with Pilot Pattern PP8, when Frame-Closing S... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.7.1 Locations of the Frame-Closing Pilots | The cells in the Frame-Closing Symbol for which k mod DX = 0, except when k = Kmin and k = Kmax, are Frame-Closing Pilots, where DX is the value from table 58 for the Scattered Pilot Pattern in use. With an FFT size of 1K with Pilot Patterns PP4 and PP5, and with an FFT size of 2K with Pilot Pattern PP7, carrier Kmax−1... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.7.2 Amplitudes of the Frame-Closing Pilots | The Frame-Closing Pilots are boosted by the same factor as the Scattered Pilots, ASP. |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.7.3 Modulation of the Frame-Closing Pilots | The phases of the Frame-Closing Pilots are derived from the reference sequence given in clause 9.2.2. The corresponding modulation is given by: Re{cm,l,k} = 2 ASP (1/2 − rl,k) ETSI ETSI TS 102 755 V1.1.1 (2023-02) 118 Im{cm,l,k} = 0 Where m is the T2-frame index, k is the frequency index of the carriers and l is the ti... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.2.8 Modification of the pilots for MISO | In MISO mode, the phases of the Scattered, Continual, Edge and Frame-Closing Pilots are modified in the signal transmitted from any transmitter from transmitters in MISO group 2. The Scattered Pilots from transmitters in MISO group 2 are inverted compared to MISO group 1 on alternate Scattered-Pilot-bearing carriers: ... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.3 Dummy Tone Reservation | Some OFDM cells can be reserved for the purpose of PAPR reduction and they shall be initially set to cm,l,k = 0 + 0j. In P2 symbol(s), the set of carriers corresponding to carrier indices defined in table H.1 shall be always reserved in normal carrier mode. In extended carrier mode, the reserved carrier indices shall b... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.4 Mapping of data cells onto OFDM carriers | Any cell cm,l,k in the P2 or data symbols which has not been designated as a pilot (see clause 9.2) or as a reserved tone (see clause 9.3) shall carry one of the data cells from the MISO processor, i.e. cm,l,k = em,l,p. The cells em,l,p for symbol l in T2-frame m shall be taken in increasing order of the index p, and a... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.5 IFFT - OFDM Modulation | This clause specifies the OFDM structure to use for each transmission mode. The transmitted signal is organized in frames. Each frame has a duration of TF, and consists of LF OFDM symbols. NT2 frames constitute one super-frame. Each symbol is constituted by a set of Ktotal carriers transmitted with a duration TS. It is... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.6 PAPR Reduction | |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.6.0 Overview | Two modifications of the transmitted OFDM signal are allowed in order to decrease PAPR. One or both techniques may be used simultaneously. The use (or lack thereof) of the techniques is indicated in L1 signalling (see clause 7.2). The Active Constellation Extension technique is described in clause 9.6.1 and the Tone Re... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.6.1 Active Constellation Extension | The Active Constellation Extension algorithm produces a frequency domain signal , , * that replaces the original frequency domain signal , , produced by the previous stage of the transmission chain, i.e. the pilot insertion and dummy Tone Reservation block as defined in clauses 9.2 to 9.4. 4 x IFFT Clip 4 x FFT +... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.6.2 Tone Reservation | |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.6.2.0 Overview | The reserved carriers described in clause 9.3 shall not carry data nor L1/L2 signalling, but arbitrary complex values to be used for PAPR reduction. This technique, when used, is applied to the active portion of each OFDM symbol (except P1), i.e. to that portion of as defined in the OFDM equation in clause 9.5 occu... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.6.2.1 Algorithm of PAPR reduction using Tone Reservation | Signal peaks in the time domain are iteratively cancelled out by a set of impulse-like kernels made using the reserved carriers. The following definitions will be used in the description of the PAPR reduction algorithm: n The sample index, 0 ≤! < . The sample for which n = 0 corresponds to the beginning of the acti... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.7 Guard Interval insertion | Seven different Guard Interval fractions (Δ/TU) are defined. Table 68 gives the absolute Guard Interval duration Δ, expressed in multiples of the elementary period T (see clause 9.5) for each combination of FFT size and Guard Interval fraction. Some combinations of Guard Interval fraction and FFT size shall not be used... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.8 P1 Symbol insertion | |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.8.1 P1 Symbol overview | Preamble symbol P1 has four main purposes. First it is used during the initial signal scan for fast recognition of the T2-signal, for which just the detection of the P1 is enough. Construction of the symbol is such that any frequency offsets can be detected directly even if the receiver is tuned to the nominal centre f... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.8.2 P1 Symbol description | |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.8.2.0 Overview | P1 is a 1K OFDM symbol with two 1/2 "Guard Interval-like" portions added. The total symbol lasts 224 μs in 8 MHz system, comprising 112 μs, the duration of the useful part 'A' of the symbol plus two modified 'guard-interval' sections 'C' and 'B' of roughly 59 μs (542 samples) and 53 μs (482 samples), see figure 52. P1 ... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.8.2.1 Carrier Distribution in P1 symbol | The active carriers are distributed according to a Carrier Distribution Sequence (CDS). The CDS is generated using the following algorithm: out of the 853 carriers of the 1K symbol, the 766 carriers from the middle are considered. From these 766 carriers, only 384 carry pilots; the others are set to zero. In order to i... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.8.2.2 Modulation of the active carriers in P1 | Active carriers are DBPSK modulated with a modulation pattern. The patterns, described later, encode two signalling fields S1 and S2. Up to 8 values (can encode 3 bits) and 16 values (can encode 4 bits) can be signalled in each field, respectively. Patterns to encode S1 are based on 8 orthogonal sets of 8 complementary... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.8.2.3 Boosting of the Active Carriers | Taking into account that in a 1K OFDM symbol only 853 carriers are used, and in P1 there are only 384 active carriers, the boosting applied to the P1 active carriers is a voltage ratio of #(853/384) or 3,47 dB, relative to the mean value of all Ktotal of the used carriers of a 1K normal symbol. |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.8.2.4 Generation of the time domain P1 signal | |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.8.2.4.1 Generation of the main part of the P1 signal | The useful part 'A' of the P1 signal is generated from the carrier modulation values, according to the following equation: 9 = √342 ∑ >++_+E8& × !π () 6 343 & where kP1(i) for i = 0, 1, …, 383 are the indices of the 384 active carriers, in increasing order, as defined in clause 9.8.2.1. MSS_SCRi for i = 0,... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 9.8.2.4.2 Frequency-shifted repetition in Guard Intervals | In order to improve the robustness of the P1 symbol, two Guard Intervals are defined at both sides of the useful part of the symbol. Instead of cyclic continuation like normal OFDM symbols, a frequency shift version of the symbol is used. Thus, denoting P1[C], the first Guard Interval, P1[A] the main part of the symbol... |
7b4ea1ddda2445fed694673e017a5e51 | 102 755 | 10 Spectrum characteristics | The OFDM symbols constitute a juxtaposition of equally-spaced orthogonal carriers. The amplitudes and phases of the data cell carriers are varying symbol by symbol according to the mapping process previously described. The power spectral density Pk' (f) of each carrier at frequency: ′ = + ′ 8" for F− #$#%# ! G ≤... |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 1 Scope | The present document specifies details of the channel usage in the ITS G5A and ITS G5B bands including multi- channel operation support which includes • Control and service channels operation for ITS G5; • Usage of ITS G5 channels for road safety and traffic efficiency ITS applications; • ITS G5 transmit and receive po... |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 2 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... |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 2.1 Normative references | The following referenced documents are necessary for the application of the present document. [1] ETSI EN 302 665: "Intelligent Transport Systems (ITS); Communications Architecture". [2] ISO/IEC 7498-1: "Information technology - Open Systems Interconnection - Basic Reference Model: The Basic Model". [3] ETSI ES 202 663... |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 2.2 Informative references | 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 TS 102 636-4-1: "Intelligent Transport System (ITS); Vehicular communications; GeoNetworking; Part 4: Geographical addressing and forwarding for ... |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 3 Definitions and abbreviations | |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 3.1 Definitions | For the purposes of the present document, the terms and definitions given in [1] to [5] and the following apply: channel configuration: act of assigning traffic offered to the Access Layer to one of a discrete, fixed set of available channels DCC profile: set of transmission parameters for the identification and contro... |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 3.2 Abbreviations | For the purposes of the present document, the abbreviations given in [1] to [5] and the following apply: CAM Cooperative Awareness Message CCH Control Channel CP Communication Profile DCC Decentralized Congestion Control DENM Decentralized Environmental Notification Message DP-ID DCC Profile Identifier DSRC Dedicated S... |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 4 General Overview | In addition to the functional entities already included in the ETSI profile standard [3] covering the Access Layer of the ITS G5A and ITS G5B systems the present document will define the channel mapping under the control of the decentralized congestion control (DCC) algorithm. The needed functional blocks and the requi... |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 5 Channel Operation | |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 5.1 General Considerations | ITS stations equipped with ITS G5A and G5B transceiver shall adopt channel access requirements for all transmitted messages based on cross layer DCC as defined in the following clauses. |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 5.2 Access layer Channel monitoring | The Access Layer shall monitor the following status indicators of the ITS G5A and G5B channels as defined in clauses A.1 and A.2 in [3]: • Channel Busy Ratio: Relative time in % the channel is busy based on the Channel Busy time definition in the relevant specification [3], where the NDL_defDCCSensitivity is assumed as... |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 5.3 Void | |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 5.4 ITS G5A | |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 5.4.1 Channel allocation | The ITS G5A band (5,875 GHz to 5,905 GHz) contains the channels CCH, SCH1 and SCH2 [6]. They are dedicated to road safety related service [7]. |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 5.4.2 Channel Usage CCH / SCH1 / SCH2 | The usage of the CCH, SCH1 and SCH2 channels shall be under control of the decentralized congestion control (DCC). CCH: The Control Channel (CCH) is basically dedicated to cooperative road safety. It is the default channel for the transmission of DP1 and DP2 messages. The transmissions of messages using different DCC p... |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 5.4.3 Channel Access Requirements / Operations | |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 5.4.3.1 Introduction | The present document relies on the DCC definition as described in the DCC document [4]. Additionally, extended specifications for access restrictions are considered based on the DCC states (RELAXED, ACTIVE, RESTRICTIVE) for each channel. The basic interactions between the layers are given in annex B. |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 5.4.3.2 Access layer requirements based on DCC Profiles | In the following tables the access layer requirements for the different DCC profiles (DP0 to DP32) are given for each channel (CCH, SCH1, SCH2, …). An ITS station operating on an ITS G5A channel shall comply with the parameters given for the different channels and DCC states in Table 1 to Table 3. For a single transcei... |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 5.5 ITS G5B | |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 5.5.1 Channel allocation | The ITS G5B band (5,855 GHz to 5,9875 GHz) contains the channels SCH3 and SCH4. It is considered for general purpose ITS services (e.g. road efficiency, service announcements, multi-hopping, etc.). The ITS G5B band is not allocated European wide. Thus local usage restrictions might apply. |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 5.5.2 Channel Usage and Operations SCH3 / SCH4 | All traffic shall be compliant with DCC. An ITS station operating on the ITS G5B channel shall comply with the requirements given in Table 4 and Table 5. ETSI ETSI TS 102 724 V1.1.1 (2012-10) 14 |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 5.5.3 Channel Access Requirements | For DCC profiles related to more than a single channel the following usage order shall be deployed by the ITS station: 1) Service Channel 3, SCH3 2) Service Channel 4, SCH4 The message received by the access layer will be transmitted using the first possible channel in the usage order depending on the congestion status... |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 5.6 Multi-hop Channel Operations | |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 5.6.1 ITS G5A | Multi-hoping of ANY type of message using the CCH shall only be allowed in DCC state "Relaxed" of the CCH. This implies that single transceiver ITS station in safety critical context cannot participate in the multi-hop operation in the case the CCH is in DCC state ACTIVE or RESTRITIVE. Multi-hoping of ANY type of messa... |
607b60fff1496cadc79fb83a5cc808f9 | 102 724 | 5.6.2 ITS G5B | In general the ITS G5B channels are available for non-safety related ITS related services. Non-safety related applications requiring multi-hop capabilities should be allowed to use the ITS-G5B channel for multi-hopping operations. In order to avoid congestion situations on the ITS-G5B channels the facility layer and th... |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 1 Scope | The present document specifies the Abstract Test Suite (ATS) for the IPv4 to IPv6 transitioning functions of the Internet Protocol, as defined in the specifications [11] through to [14]. The ATS is based on the requirements defined in the IPv6 requirements catalogue (TS 102 599 [2]) and theIPv6 test purposes (TS 102 51... |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 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... |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 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] ETSI TS 102 351: "Methods for Testing and Specificati... |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 2.2 Informative references | Not applicable. |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 3 Definitions and abbreviations | |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 3.1 Definitions | For the purposes of the present document, the following terms and definitions apply: abstract test case: Refer to ISO/IEC 9646-1 [4]. Abstract Test Method (ATM): Refer to ISO/IEC 9646-1 [4]. Abstract Test Suite (ATS): Refer to ISO/IEC 9646-1 [4]. Implementation Under Test (IUT): Refer to ISO/IEC 9646-1 [4]. Lower Teste... |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 3.2 Abbreviations | For the purposes of the present document, the following abbreviations apply: ATM Abstract Test Method ATS Abstract Test Suite ETS Executable Test Suite IETF Internet Engineering Task Force IPv4 Internet Protocol version 4 IPv6 Internet Protocol version 6 IUT Implementation Under Test MOT Means Of Testing PCTR Protocol ... |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 4 Abstract Test Method (ATM) | This clause describes the ATM used to test the IPv4 to IPv6 transitioning functions as defined in the RFC specifications [11] through to [14]. The three following configurations have been developed to test the different types of IUT, 6to4-Nodes, 6to4-Routers, IP6/IP4_Nodes and IPtranslators. |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 4.1 CF_TRANS_01 | Used to test 6to4Router only. 6 to 4 Router Under Test Net A IPv4 site Test System PTC01 6 to 4 RT01 v6 2002:PXT_6 to 4_IPv4_ADDR_RT01::/48 eth1 Figure 1: CF_TRANS_01 ETSI ETSI TS 102 751 V1.1.1 (2008-03) 9 |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 4.2 CF_TRANS_02 | Used to test 6to4Router only. 2002:PXT_6 to 4_IPv4_ADDR_IUT::/48 6 to 4 Router Under test Net B IPv6 site Test System PTC01 HS02 eth2 Figure 2: CF_TRANS_02 |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 4.3 CF_TRANS_03 | Used to test 6to4Router only. IPv6 to 4 Router Under Test PTC02 HS02 Net A IPv4 Net B IPv6 Test System Test System PTC01 Relay Router RT01 v6 2001::/16 eth2 eth1 2002:PXT_6 to 4_IPv4_ADDR_IUT::/48 Figure 3: CF_TRANS_03 ETSI ETSI TS 102 751 V1.1.1 (2008-03) 10 |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 4.4 CF_TRANS_04 | Used to test SIIT translator only. SIIT Translator Under Test PTC02 HS02 Net A IPv4 Net B IPv6 Test System PTC01 RT01 eth2 eth1 Figure 4 |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 4.5 CF_TRANS_05 | Used to test 6over4Nodes. 6 over 4 Node Under Test Net A IPv4 Test System PTC01 6 over 4 RT01 eth1 Figure 5: CF_TRANS_05 ETSI ETSI TS 102 751 V1.1.1 (2008-03) 11 The same configuration is used to test the IPv4 interface of RFC 4213 [14] implementations. RFC 4213 Under Test Net A IPv4 Test System PTC01 RT01 Native IPv6 ... |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 4.6 CF_TRANS_06 | Used to test the IPv6 interface of RFC 4213 [14] implementations. The HS02 part of configuration CF_CORE_02 is used. Native IPv6 RFC 4213 Under test Net B IPv6 Test System PTC01 HS02 eth2 Figure 7: CF_TRANS_06 ETSI ETSI TS 102 751 V1.1.1 (2008-03) 12 |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 4.7 CF_TRANS_07 | Used to test the IPv6 and IPv4 interface of RFC 4213 [14] implementations. It is the addition of the CF_TRANS_05 and CF_TRANS_06. PTC01 RT01 PTC02 HS02 Net A IPv4 Net B IPv6 Test System RFC 4213 Under Test Tunnel Start Point Tunnel End Point Figure 8: CF_CORE_07 |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 5 Untestable and not implemented Test Purposes (TP) | The ATS is comprised of 106 TC. Those were derived from a total of 113 TP. |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 5.1 Untestable TP | This clause gives a list of 7 TP, which are not implemented in the ATS due to the chosen ATM or other restrictions: TP_TRA_4065_01, TP_TRA_4047_01, TP_TRA_4075_02, TP_TRA_4078_01, TP_TRA_4078_02, TP_TRA_4078_03, TP_TRA_4078_04 |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 6 ATS conventions | The following clause describes the cleanup procedures used in this ATS. Descriptions of the ATS conventions are found in TS 102 351 [1]. The ATS implementation details for the IPv6 core test suite, including mapping procedures and ATS value conventions are found in TS 102 516 [15]. ETSI ETSI TS 102 751 V1.1.1 (2008-03)... |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 7 PCTR conformance | A test laboratory, when requested by a client to produce a PCTR, is required, as specified in ISO/IEC 9646-5 [7], to produce a PCTR conformant with the PCTR template given in annex B of ISO/IEC 9646-5 [7]. Furthermore, a test laboratory, offering testing for the ATS specification contained in annex C, when requested by... |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 8 PIXIT conformance | A test realizer, producing an executable test suite for the Abstract Test Suite (ATS) specification contained in annex C, is required, as specified in ISO/IEC 9646-4 [6], to produce an augmented partial PIXIT proforma conformant with this partial PIXIT proforma specification. An augmented partial PIXIT proforma which c... |
7912a7cc9709e3fbf80f045e431b4bd1 | 102 751 | 9 ATS Conformance | The test realizer, producing a Means Of Testing (MOT) and Executable Test Suite (ETS) for the present document, shall comply with the requirements of ISO/IEC 9646-4 [6]. In particular, these concern the realization of an Executable Test Suite (ETS) based on each ATS. The test realizer shall provide a statement of confo... |
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