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0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.2.1 SFD | The SFD shall be as defined in [2], clause 18.1.1.2 with the following constraints: • Devices which do not support FEC shall support at least one of the SFDs associated with uncoded (PHR+PSDU). Devices which support FEC shall support at least one pair of SFDs corresponding to one value of the PIB attribute phyGFSKSFD. ... |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.2.2 PHR | The PHR shall be as defined in [2], clause 18.1.1.3 with the following constraints: • The Mode Switch bit shall be set to 0. • The FCS bit shall be set to 0. • The Frame Length is a value between 0 and aMaxPHYPacketSize, as defined in clause 4.5. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.2.3 PSDU field | The PSDU field shall be as defined in [2], clause 18.1.1.5. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.3 Modulation and coding for GFSK | The modulation and coding for GFSK are shown in Table 1 and the channel spacing is shown in Table 3. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.3.1 Bit-to-symbol mapping | The bit-to-symbol mapping shall be as defined in [2], clause 18.1.2.2 replacing GFSK for each occurrence of 'filtered FSK'. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.3.2 Forward error correction (FEC) | Forward error correction (FEC) shall be as defined in [2], clause 18.1.2.4. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.3.3 Code-symbol interleaving | Code-symbol interleaving shall be as defined in [2], clause 18.1.2.5. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.4 Data whitening for GFSK | Data Whitening shall be as defined in [2], clause 18.1.3. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.5 GFSK PHY RF requirements | |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.5.1 Operating frequency range | The GFSK PHY operates in the bands given in Table 3. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.5.2 Radio frequency tolerance | The single-sided clock frequency at the transmitter shall be 30 ppm. Oscillators determining transmit centre frequency and symbol time frequency shall be derived from the same reference oscillator. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.5.3 Transmitter symbol rate tolerance | The transmitter symbol rate tolerance shall be as defined in [2], clause 18.1.5.5. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.5.4 Channel switch time | Channel switch time shall be as defined in [2], clause 18.1.5.4. ETSI ETSI TS 102 887-1 V1.1.1 (2013-07) 12 |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.5.5 Receiver sensitivity | The GFSK receiver sensitivity shall be as defined in [2], clause 18.1.5.7 with the following constraint: S0 is –91. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.5.6 Tx-to-Rx turnaround time | The Tx-to-Rx turnaround time shall be as defined in [2], clause 18.1.5.9. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.5.7 Rx-to-Tx turnaround time | The Rx-to-Tx turnaround time shall be as defined in [2], clause 18.1.5.10. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.5.8 Receiver interference rejection | The interference rejection shall be measured as follows: The desired signal shall be a compliant GFSK PHY signal, as defined in this clause 5, of pseudo-random data at the centre frequency of the desired channel. The desired signal is input to the receiver at a level 3 dB above the receiver sensitivity given in clause ... |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.5.9 Transmitter accuracy | Modulation quality shall be measured by observing the frequency deviation tolerance and the zero crossing tolerance of the eye diagram caused by a PN9 sequence of length 511 bits. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.5.9.1 Frequency deviation tolerance | Modulation frequency tolerance shall be as defined in [2], clause 18.1.2.3.1 substituting GFSK for filtered FSK. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.5.9.2 Zero crossing tolerance | Zero crossing tolerance shall be as defined in [2], clause 18.1.2.3.2 substituting GFSK for filtered FSK. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.5.10 Transmit power | Transmit power shall be as defined in [2], clause 18.1.5.11. The maximum transmit power is limited by local regulatory bodies. ETSI ETSI TS 102 887-1 V1.1.1 (2013-07) 13 |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.5.11 Receiver maximum input level of desired signal | The receiver maximum input level shall be as defined in [2], clause 18.1.5.12 substituting GFSK for MR-FSK. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.5.12 Receiver ED | The receiver ED measurement is an estimate of the received signal power within the bandwidth of the channel. No attempt is made to identify or decode signals on the channel. The time over which the ED measurement is averaged shall be equal to 160 μs. The ED value zero shall indicate received power less than 10 dB above... |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 5.5.13 Clear channel assessment (CCA) | The PHY shall provide the capability to perform CCA. CCA shall report a busy medium on detecting any energy ≥ ED value of zero as defined in clause 5.5.12. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6 O-QPSK PHY specification | |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.1 PPDU format for O-QPSK | The O-QPSK PPDU shall support two PPDU types. For PPDU Type 1, a variable PSDU length shall be supported, as shown in Figure 1. Octets 3 variable Preamble SFD-1 as defined in clause 6.1.3 PSDU SHR PHR PHY payload Figure 1: Format of the O-QPSK PHY for PPDU Type 1 For PPDU Type 2, the number of octets contained in the P... |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.1.1 Preamble field | The Preamble field for O-QPSK shall contain a sequence of 30 zero bits. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.1.2 SFD | The SFD for O-QPSK shall be a 16-bit sequence as shown in Table 8. The leftmost bit, b0, shall be processed first in time, and the last bit, b15, shall be processed last in time. ETSI ETSI TS 102 887-1 V1.1.1 (2013-07) 14 Table 8: Format of the SFD for O-QPSK PHY SFD SFD value (b0–b15) Indication SFD-1 1110 1011 0110 0... |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.1.3 PHR | The PHR shall be as defined in [2], clause 18.3.1.3 with the following additional constraints: • The PHY Header (PHR) shall be used for PPDU Type 1. The format of the 24-bit PHR sequence is shown in Figure 3. The leftmost bit, b0, shall be processed first in time, and the last bit, b23, shall be processed last in time.... |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.1.4 PSDU field | The PSDU field shall be as defined in [2], clause 18.3.1.4. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.2 Modulation and coding for O-QPSK | |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.2.1 Overview | There are two PHY options for the O-QPSK PHY, denoted as PHY Option 1 and Option 2 respectively. The main parameters of the O-QPSK PHY are shown in Table 9. Table 9: Parameters of the O-QPSK PHY Parameter Unit Value PHY Option 1 PHY Option 2 Frequency band MHz 870-876 and 915-921 Chip rate fchip kchip/s 100 200 SHR cod... |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.2.2 SHR coding and spreading | For the 46 SHR bits, bit differential encoding (BDE), see clause 6.2.7, and subsequently spreading by (32,1)-DSSS shall be applied (see clause 6.2.8). This shall result in an SHR chip sequence cSHR. ETSI ETSI TS 102 887-1 V1.1.1 (2013-07) 15 |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.2.3 PHR coding and spreading | The PHR field, consisting of 24 information bits, shall be processed by rate ½ FEC (see clause 6.2.5) and interleaving (see clause 6.2.6), resulting in 60 interleaved code-bits. For the interleaved PHR code-bits, BDE (see clause 6.2.7) and subsequently spreading by (8,1)0/1-DSSS shall be applied (see clause 6.2.8). Thi... |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.2.4 PSDU coding and spreading | For each octet of the PSDU with frame length in octets (LENGTH), the least significant bit shall be processed first in time, beginning with the left most octet and ending with the right most octet. The resulting bit stream, b0, b1, …, b8×LENGTH-1, shall be first processed by rate ½ FEC as described in clause 6.2.5, del... |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.2.5 Forward error correction (FEC) | Forward error correction (FEC) as defined in [2], clause 18.3.2.6 shall be applied to the bits of the PHR and PSDU field as indicated in Table 9. For PPDU-Type 2, the PHR bits and the six, zero bits following the PHR bits shall be omitted. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.2.6 Code-bit interleaving | Code-bit interleaving shall be as defined in [2], clause 18.3.2.7 with the following constraints: • Interleaving of PHR code-bits only applies to PPDU Type 1. • Interleaver parameters for PPDU Type 2 are given in Table 10. Table 10: Interleaver Parameters PPDU Type degree λ depth NINTRLV Type 2 PSDU: 7 octets 7 18 × 7 ... |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.2.7 Bit differential encoding (BDE) | BDE shall be as defined in [2], clause 18.3.2.8 with the following constraints: • BDE is always applied as indicated in Table 9. • The number of SHR bits (NSHR) is 46. • Mp = 512 is the pilot spacing (see clause 6.2.9), and N = 8 is the spreading factor of (8,1)0/1-DSSS (see clause 6.2.8). • For PPDU Type 2, let the se... |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.2.8 Spreading | For spreading, direct sequence spread spectrum (DSSS) shall be used. This is achieved by mapping a single bit to a sequences of N binary valued chips, 1 1 0 ,..., , − N c c c , called (N,1)-DSSS. The differentially encoded SHR bits shall be spread by (32,1)-DSSS as shown in Table 11. Table 11: (32,1)-DSSS bit-to-chip m... |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.2.9 Pilot insertion | Pilot insertion shall be as defined in [2], clause 18.3.2.12 with the following constraints: Table 13 shows the value MP of the pilot spacing and the pilot sequence. Table 13: Pilot spacing and sequence Spacing Mp Pilot Length Np Pilot sequence ) ,..., , ( 1 1 0 − = P N p p p p 512 32 1101 1110 1010 0010 0111 0000 0110... |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.2.10 PPDU Chip sequence | The PPDU chip sequence is given by } , , { 1 PSDU PHR SHR c c c P = (PPDU Type 1) or } , { 2 PSDU SHR c c P = (PPDU Type 2) or any sequence obtained by concatenating multiples of P1 and P2. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.2.11 Modulation | Let } , , , { 1 1 0 − = PPDU N PPDU c c c c L be the chip sequence belonging to a complete PPDU. The modulating value } 1 ,1 { + − ∈ k α input to the modulator is: 1 - , ,1,0 for 1, - 2 PPDU k k N k c L = = α The function p, defining the impulse response of a raised cosine shaping filter is given by: ⎪⎩ ⎪⎨ ⎧ = ≠ − × = ... |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.3 O-QPSK PHY RF requirements | |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.3.1 Operating frequency range | The O-QPSK PHY shall operate in the 870-876 MHz and 915-921 MHz band. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.3.2 Radio frequency and symbol rate tolerance | The single-sided clock frequency and symbol rate tolerance at the transmitter shall be 20 ppm. Oscillators determining transmit centre frequency and symbol time frequency shall be derived from the same reference oscillator. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.3.3 Channel switch time | Channel switch time shall be less than or equal to 500 μs. The channel switch time is defined as the time elapsed when changing to a new channel, including any required settling time. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.3.4 Receiver sensitivity | Under the conditions specified in clause 4.4, a compliant device shall be capable of achieving a sensitivity of -110 dBm or better for PHY Option 1, and a sensitivity of -107 dBm or better for PHY Option 2. ETSI ETSI TS 102 887-1 V1.1.1 (2013-07) 18 |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.3.5 Tx-to-Rx turnaround time | The Tx-to-Rx turnaround time shall be as defined in [2], clause 18.3.4.5. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.3.6 Rx-to-Tx turnaround time | The Rx-to-Tx turnaround time shall be as defined in [2], clause 18.3.4.6. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.3.7 Receiver Interference Rejection | The interference rejection shall be measured as follows: the desired signal shall be a compliant O-QPSK PHY signal, as defined in this clause 6, of pseudo-random data at the centre frequency of the desired channel. The desired signal shall be input to the receiver at a level 3 dB above the receiver sensitivity given in... |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.3.8 Error-vector magnitude (EVM) definition | EVM shall be as defined in [2], clause 18.3.4.7. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.3.9 Transmit power | Transmit power shall be as defined in [2], clause 18.3.4.9. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.3.10 Receiver maximum input level of desired signal | The receiver maximum input level is as defined in [2], clause 18.3.4.10. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.3.11 Receiver ED | The receiver ED measurement is an estimate of the received signal power within the bandwidth of the channel. No attempt is made to identify or decode signals on the channel. The time over which the ED measurement is averaged shall be equal to 1 280 μs for Option 1 and 640 μs for Option 2. The ED value zero shall indica... |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 6.3.12 Clear channel assessment (CCA) | The PHY shall provide the capability to perform CCA. CCA shall report a busy medium on detecting any energy ≥ ED value of zero as defined in clause 6.3.11. ETSI ETSI TS 102 887-1 V1.1.1 (2013-07) 19 |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7 OFDM PHY specification | The OFDM PHY shall be as defined in [2], clause 18.2 restricted to Option 3 and Option 4 and operation in the frequency bands defined in Table 3. Data rates range from 50 kb/s to 600 kb/s with occupied bandwidths less than 300 kHz for Option 3 and less than 200 kHz for Option 4. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.1 PPDU format for OFDM | The PPDU format shall be as defined in [2], clause 18.2.1 substituting OFDM for MR-OFDM. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.1.1 Short Training field (STF) | The following clauses describe the STF. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.1.1.1 Frequency domain STF | The frequency domain STF shall be as defined in [2], clause 18.2.1.1.1 excluding the STF defined for Options 1 and 2. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.1.1.2 Time domain STF generation | The time domain STF generation shall be as defined in [2], clause 18.2.1.1.2. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.1.1.3 Time domain STF repetition | Time domain STF repetition shall be as defined in [2], clause 18.2.1.1.4 restricted to Option 3 and Option 4 only. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.1.1.4 STF normalization | STF normalization shall be as defined in [2], clause 18.2.1.1.4. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.1.2 Long Training field (LTF) | The LTF structure in both the frequency and time domain shall be as described in the following clauses. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.1.2.1 Frequency domain LTF | The frequency domain LTF shall be as defined in [2], clause 18.2.1.2.1 excluding the LTF defined for Options 1 and 2. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.1.2.2 Time domain LTF generation | The time domain STF generation shall be as defined in [2], clause 18.2.1.2.2. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.1.2.3 LTF normalization | LTF normalization shall be as defined in [2], clause 18.2.1.2.3. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.1.3 PHR | The PHR shall be as defined in [2], clause 18.2.1.3 excluding consideration of Options 1 and 2. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.1.4 PSDU field | The PSDU field shall be as defined in [2], clause 18.2.1.4. ETSI ETSI TS 102 887-1 V1.1.1 (2013-07) 20 |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.2 Data rates for OFDM | Data rates for OFDM shall be as defined in [2], clause 18.2.2 excluding Options 1 and 2. The OFDM PHY parameters and data rates are found in Table 2. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.3 Modulation and coding for OFDM | |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.3.1 Reference modulator diagram | The reference modulator diagram shall be as defined in [2], clause 18.2.3.1. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.3.2 Bit-to-symbol mapping | Bit-to-symbol mapping shall be as defined in [2], clause 18.2.3.2. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.3.3 PIB attribute values for phySymbolsPerOctet | The number of symbols per octet shall be as defined in [2], clause 18.2.3.3 excluding Options 1 and 2. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.3.4 Forward error correction (FEC) | FEC shall be as defined in [2], clause 18.2.3.4. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.3.5 Interleaver | The interleaving process shall be as defined in [2], clause 18.2.3.5 excluding Options 1 and 2. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.3.6 Frequency spreading | Frequency spreading shall be as defined in [2], clause 18.2.3.6 excluding sub-clause 18.2.3.6.2. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.3.7 Pilot tones/null tones | Pilot tones/null tones shall be as defined in [2], clause 18.2.3.7 excluding Options 1 and 2. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.3.8 Cyclic prefix (CP) | The CP shall be as defined in [2], clause 18.2.3.8. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.3.9 PPDU Tail Bit field (TAIL) | The Tail field shall be as defined in [2], clause 18.2.3.9. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.3.10 Pad bits (PAD) | The PAD field shall be as defined in [2], clause 18.2.3.10. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.3.11 Scrambler and scrambler seeds | The scrambler and scrambler seeds shall be as defined in [2], clause 18.2.3.11. ETSI ETSI TS 102 887-1 V1.1.1 (2013-07) 21 |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.4 OFDM PHY RF requirements | |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.4.1 Operating frequency range | The OFDM PHY shall operate in the 870-876 MHz and 915-921 MHz band. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.4.2 Transmit power spectral density (PSD) mask | The OFDM transmit PSD mask shall be as defined in [2], clause 18.2.4.2. 7.4.3 Receiver sensitivity Receiver sensitivity shall be as defined in [2], clause 18.2.4.3 excluding Options 1 and 2. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.4.4 Receiver interference rejection | The interference rejection shall be measured as follows: the desired signal shall be a compliant OFDM PHY signal, as defined in this clause 7, of pseudo-random data at the centre frequency of the desired channel. The desired signal shall be input to the receiver at a level 3 dB above the maximum allowed receiver sensit... |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.4.5 Tx-to-Rx turnaround time | The Tx-to-Rx turnaround time shall be as defined in [2], clause 18.2.4.6. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.4.6 Rx-to-Tx turnaround time | The Rx-to-Tx turnaround time shall be as defined in [2], clause 18.2.4.7. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.4.7 Error-vector magnitude (EVM) definition | EVM shall be as defined in [2], clause 18.2.4.8 excluding MCS 0. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.4.8 Transmit centre frequency and symbol tolerance | The transmit centre frequency tolerance shall be as defined in [2], clause 18.2.4.9. ETSI ETSI TS 102 887-1 V1.1.1 (2013-07) 22 |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.4.9 Transmit power | Transmit power shall be as defined in [2], clause 18.2.4.10. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.4.10 Receiver maximum input level of desired signal | The receiver maximum input level shall be as defined in [2], clause 18.2.4.11. |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.4.11 Receiver ED | The receiver ED measurement is an estimate of the received signal power within the bandwidth of the channel. No attempt is made to identify or decode signals on the channel. The time over which the ED measurement is averaged shall be equal to 960 μs. The ED value zero shall indicate received power less than 10 dB above... |
0bdd3ebbce728a9b370f8915edcdd6ff | 102 887-1 | 7.4.12 Clear channel assessment (CCA) | The PHY shall provide the capability to perform CCA. CCA shall report a busy medium on detecting any energy ≥ ED value of zero as defined in clause 7.4.11. ETSI ETSI TS 102 887-1 V1.1.1 (2013-07) 23 History Document history V1.1.1 July 2013 Publication |
569956462594515926df989a4818539f | 102 883 | 1 Scope | The present document summarize the available information of possible measurement techniques and procedures for the conformance measurement of various UWB signal formats in order to comply with the given transmission limits given in the actual regulation. The present document will be used as a reference for existing and... |
569956462594515926df989a4818539f | 102 883 | 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... |
569956462594515926df989a4818539f | 102 883 | 2.1 Normative references | The following referenced documents are necessary for the application of the present document. [1] ETSI TR 100 028 (V1.4.1) (all parts): "Electromagnetic compatibility and Radio spectrum Matters (ERM); Uncertainties in the measurement of mobile radio equipment characteristics". [2] ANSI C63.5 (2006): "American National ... |
569956462594515926df989a4818539f | 102 883 | 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 TR 103 181-1: "Electromagnetic compatibility and Radio spectrum Matters (ERM); Short Range Devices (SRD) using Ultra Wide Band (UWB); Transmissio... |
569956462594515926df989a4818539f | 102 883 | 3 Definitions, symbols and abbreviations | |
569956462594515926df989a4818539f | 102 883 | 3.1 Definitions | For the purposes of the present document, the following terms and definitions apply: avoidance level: maximum amplitude to which the UWB transmit power is set for the relevant protection zone combined equipment: any combination of non-radio equipment and a plug-in radio device that would not offer full functionality wi... |
569956462594515926df989a4818539f | 102 883 | 3.2 Symbols | For the purposes of the present document, the following symbols apply: Ω ohm λ wavelength D detection threshold dB decibel dBi gain in decibels relative to an isotropic antenna dBm gain in decibels relative to one milliwatt f frequency fH highest frequency of the power envelope fL lowest frequency of the power envelope... |
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