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079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 5.1 Transmission packet structure | DECT-2020 NR transmission packet consists of Synchronization Training Field (STF), Data Field (DF) and Guard Interval (GI) as depicted in Figures 5.1-1, 5.1-2 and 5.1-3, where STF consists of 7 or 9 periodic repetitions of sequence S, and Data Field consists of a number of OFDM symbols D each with Cyclic Prefix CP. OFD... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 5.2 Physical resource mapping | |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 5.2.1 Guard Interval (GI) | GI in the end of the packet allows transmission-reception and reception-transmission turnaround and to avoid overlapping transmissions from adjacent timeslots. Guard intervals are of length = ร , , = 1 ร and = 2 ร for subcarrier scaling factors = 1,2,4,8, respectively. Gua... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 5.2.2 Synchronization Training Field (STF) | Synchronization training signal is mapped into resource elements: , , = 0, ร 4 , 0 , โ = 0, โฆ , 8 โ1 and , , = !0, " 2 + 3 + ( โ 8 ) ร 4# , 0$ , โ = 8 , โฆ , 4 โ1 Thus, synchronization training is always in transmit stream = 0 and in OFDM symbol = 0 on every fourth subcarrier s... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 5.2.3 Demodulation Reference Signal (DRS) | Demodulation Reference Signals are allocated to the transmit streams according to the number of transmit streams . DRS is transmitted on the resource elements: , , = , ร 4 + + mod 2 ร 2 mod 4 , 1 + โ 4 โ โ+ ร + , = 0, โฆ , , โ1 , = 0, โฆ , * , , + โ1 + = , 5, - โค2 1... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 5.2.4 Physical Control Channel (PCC) | PCC is mapped to spatial stream 0 to the ) = 98 resource elements starting from OFDM symbol = 1 and to the resource elements which are not already occupied by DRS in any transmit stream. The procedure for resource element allocation for PCC is defined with steps: 1) Start from OFDM symbol = 1 and set ) /0... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 5.2.5 Physical Data Channel (PDC) | The remaining resource elements of DF which are not allocated for DRS in any transmit stream or PCC in spatial stream 0 are allocated for PDC. The length of DF in OFDM symbols is given by: -5 = โ 674 5 where 674 5 = 2 for = 1, 674 5 = 3 for = 2, 4 and 674 5 = 4 for = 8. The ... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 5.3 Transport block size | With number of resource elements ) - available for transmission transport block size 8 is calculated as follows. Supported Modulation and Coding Schemes (MCSs) are defined in Table A-1. For a MCS carrying + bits per symbol and coding rate R, maximum number of bits which can be carried by the PDC is given by: ... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6 Generic procedures | |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.1 Channel coding, rate-matching and interleaving | |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.1.1 Overview | Data and control streams from/to MAC layer are encoded/decoded to offer physical layer packet services over the radio transmission link. Channel coding scheme is a combination of error detection, error correction, rate matching and interleaving. |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.1.2 CRC calculation | Denote the input bits to the CRC computation by , , , ;, . . . , 3, and the parity bits by , , , ;, . . . , 3. A is the size of the input sequence and L is the number of parity bits. The parity bits are generated by one of the following cyclic generator polynomials: - gCRC24A(D) = [D24 + D23 + D18 + D17 + ... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.1.3 Code block segmentation | The input bit sequence to the code block segmentation is denoted by , , , , . . . , , where B > 0. If B is larger than the maximum code block size Z, segmentation of the input bit sequence is performed, and an additional CRC sequence of L = 24 bits is attached to each code block. The maximum code block size... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.1.4 Channel coding | |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.1.4.1 Introduction | The bit sequence input for a given code block to channel coding is denoted by , , , , . . . , , where K is the number of bits to encode. After encoding the bits are denoted by (), (), (), (), . . . , () , where D is the number of encoded bits per output stream and i indexes the encoder outp... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.1.4.2 Turbo coding | |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.1.4.2.1 Turbo encoder | The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state constituent encoders and one turbo code internal interleaver. The coding rate of turbo encoder is 1/3. The structure of turbo encoder is illustrated in Figure 6.1.4.2.1-1. The transfer function of the 8-state constituent c... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.1.4.2.2 Trellis termination for turbo encoder | Trellis termination is performed by taking the tail bits from the shift register feedback after all information bits are encoded. Tail bits are padded after the encoding of information bits. The first three tail bits shall be used to terminate the first constituent encoder (upper switch of Figure 6.1.4.2.1-1 in lower p... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.1.4.2.3 Turbo code internal interleaver | The bits input to the turbo code internal interleaver are denoted by , , . . . , , where K is the number of input bits. The bits output from the turbo code internal interleaver are denoted by โฒ , โฒ , . . . , โฒ . The relationship between the input and output bits is as follows: โฒ = , = 0, 1, โฆ , ( โ1... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.1.5 Rate matching | |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.1.5.1 Rate matching for turbo coded transport channels | The rate matching for turbo coded transport channels is defined per coded block and consists of interleaving the three information bit streams (), () and (), followed by the collection of bits and the generation of a circular buffer as depicted in Figure 6.1.5.1-1. The output bits for each code block are trans... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.1.5.2 Sub-block interleaver | The bits input to the block interleaver are denoted by (), (), (), . . . , () , where D is the number of bits. The output bit sequence from the block interleaver is derived as follows: 1) Assign = 32 to be the number of columns of the matrix. The columns of the matrix are numbered 0, 1, 2,โฆ,... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.1.5.3 Bit collection, selection and transmission | The circular buffer of length = 3 for the r-th coded block is generated as follows: = () for k = 0,โฆ, โ1 = () for k = 0,โฆ, โ1 = () for k = 0,โฆ, โ1 Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block by Ncb bits. Th... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.1.6 Code block concatenation | The input bit sequence for the code block concatenation block are the sequences , for = 0, . . . , โ1 and = 0, . . . , โ1. The output bit sequence from the code block concatenation block is the sequence % for = 0, . . . , โ1. The code block concatenation consists of sequentially concatenating the rate matc... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.2 Pseudo-random sequence generation | Generic pseudo random sequence is defined by a length 31 Gold sequence. The output sequence '() if length where = 0,1, โฏ, โ1 is defined by: '() = () + * + () + * 2 () + 31* = () + 3* + ()* 2 () + 31* = () + 3* + () + 2* + () + 1* + ()* 2 , where = 1 600 and the firs... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.3 Modulation | |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.3.1 Symbol mapping | |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.3.1.1 Overview | The modulation mapper takes binary digits, 0 or 1, as input and produces complex-valued modulation symbols as output. |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.3.1.2 BPSK | In case of BPSK modulation, bit )* is mapped to complex-valued modulation symbol () according to: (() = โ +)1 โ2 ร ()* +&)1 โ2 ร ()*, |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.3.1.3 QPSK | In case of QPSK modulation, pair of bits, )*, ) + 1* are mapped to complex-valued modulation symbols () according to: (() = โ +)1 โ2 ร ()* +&)1 โ2 ร ( + 1)*, |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.3.1.4 16-QAM | In case of 16-QAM modulation, quadruplets of bits, )*, ) + 1*, ) + 2*, ) + 3* are mapped to complex-valued modulation symbols () according to: (() = โ .)1 โ2 ร ()* 2 โ1 โ2 ร ) + 2* +& )1 โ2 ร ( + 1)* 2 โ1 โ2 ร ) + 3* / |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.3.1.5 64-QAM | In case of 64-QAM modulation, hextuplets of bits, )*, ) + 1*, ) + 2*, ) + 3*, ) + 4*, ) + 5*, are mapped to complex-valued modulation symbols () according to: (() = โ) .)1 โ2 ร ()* 4 โ1 โ2 ร ) + 2* 2 โ1 โ2 ร ) + 4* " +& )1 โ2 ร ( + 1)* 4 โ1 โ2 ร ) + 3* 2 โ1 โ2 ร ) + 5* "/ |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.3.1.6 256-QAM | In case of 256-QAM modulation, octuplets of bits, )*, ) + 1*, ) + 2*, ) + 3*, ) + 4*, ) + 5*, ) + 6*, ) + 7* are mapped to complex-valued modulation symbols () according to: (() = โ* 0)1 โ2 ร ()* 18 โ1 โ2 ร ) + 2* 4 โ1 โ2 ร ) + 4* 2 โ1 โ2 ร ) + 6* "2 +& )1 โ2 ร ( + 1)* 18 โ1 โ2 ... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.3.1.7 1024-QAM | In case of 1024-QAM modulation, decuplets of bits, )*, ) + 1*, ) + 2*, ) + 3*, ) + 4*, ) + 5*, ) + 6*, ) + 7*, ) + 8*, ) + 9* are mapped to complex-valued modulation symbols () according to: () = 1 โ682 1 โ2 ร () 16 โ 1 โ2 ร + 2 8 โ 1 โ2 ร + 4 4 โ 1 โ2 ร + 6 2 โ 1 โ2 ร +... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.3.2 Spatial multiplexing | The modulated transport block to spatial stream multiplexing shall be done according to Table 6.3.2-1, where the complex valued modulation symbols ((), = 0, . . . , 4+ is mapped to the modulated symbol in spatial stream (,-)*, = 0, . . . , 4+ %. โ1 for stream 5 and 4+ %. = 4+ /. The number of ... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.3.3 Transmit stream mapping | |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.3.3.1 Transmit stream mapping for spatial multiplexing and for single antenna | If transmit diversity is not used the precoding matrix is identity matrix, thus: 6()() = (()(), = 0, . . , 4+ %. โ1, 5 = 0, . . . , where 6()() denotes transmission in transmit stream index s and (()() is modulated symbol for spatial stream index s and time index i and number of transmit streams ... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.3.3.2 Transmit diversity precoding | When transmit diversity is used the pair of symbols 7(()(2), (()(2 + 1)8 , = 0, . . , 4+ %./2 โ1 of spatial stream 0 shall be precoded according to: โฃ โข โข โข โข โก 6()(2) โฎ 6( /)(2) 6()(2 + 1) โฎ 6( /)(2 + 1)โฆ โฅ โฅ โฅ โฅ โค = ? โฃ โข โข โข โก @(()(2)A @(()(2 + 1)A B@(()(2)A B@(()(2 + 1)Aโฆ โฅ โฅ โฅ โค ... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.3.4 Beamforming and antenna port mapping | The block of vectors ()() โฏ ( )(), = 0,1, . . . , โ1 for transmit streams shall be beamformed according to: ()() โฎ ( )() = ()() โฎ ( )() where ( )() is the beamformed transmission on antenna port . ETSI ETSI TS 103 636-3 V2.1.1 (2024-10) 33 Release 2 The same precoding or beamfo... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.3.6 Cyclic prefix insertion | Cyclic prefixes for each of the Fourier transform scaling is 1/8 of the for all OFDM symbols except for the OFDM symbol 0 of the transmission packet. For OFDM symbol 0 of the transmission packet the cyclic prefix shall equal to 3 4 โ โ when subcarrier scaling factor = 1 or 5 4 โ โ when subcarrier... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 6.3.7 STF signal cover sequence | Denote length 1 4 โ โ base sequence by . A following cover sequence shall be applied on the signal repetitions: = 1, โ1,1,1, โ1, โ1, โ1, ฮผ = 1 = {1, โ1,1,1, โ1, โ1, โ1, โ1, โ1}, โ{2,4,8}. The time domain STF signal is: โ = { 0 ร , โฆ , c โ1 ร S }, which is Kronecker product of cover sequen... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7 Transmission encoding | |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.1 Transmitter block diagram | High level transmitter block diagram is depicted in Figure 7.1-1. denotes the number of spatial streams. For PCC the number of spatial streams is fixed to one. The number of spatial streams for PDC is signalled within the Physical Header as specified ETSI TS 103 636-4 [3], clause 6.2.1. is the effective number of... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.2 Transmission modes | Transmission modes available for transmitting a packet are listed in Table 7.2-1. The transmission mode is signalled with: โข Physical header field containing the number of spatial streams signalled as specified in ETSI TS 103 636-4 [3]. โข XOR-masking the CRC of the PCC as specified in clause 7.5.2.2 for closed loop t... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.3 Synchronization Training Field (STF) beamforming | Synchronization training field symbols ,() from transmit stream 0 as specified in clause 5.2.2 are beamformed with beamforming matrix defined in clause 6.3.4 for transmission as: ()() โฎ ( )() = ,()() 0 โฎ 0 !, where the number of rows in the transmit stream vector is according to the number of trans... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.4 Demodulation Reference Signal (DRS) beamforming | Demodulation reference symbols ,( ) from transmit stream t as specified in clause 5.2.3 are beamformed with beamforming matrix defined in clause 6.3.4 for transmission as: ()() โฎ ( )() = ,()() โฎ ,( )() , where the number of rows in the transmit stream vector is according to the number of... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.5 Physical Control Channel (PCC) encoding | |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.5.1 Overall description | High level description of PCC encoding procedure is depicted in Figure 7.5.1-1. Number of physical control channel payload bits is either 40 or 80 bits depending on the control channel format. The physical control channel is transmitted on ! = 98 subcarriers. The receiver shall blind decode both transpor... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.5.2 CRC calculation | |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.5.2.1 Parity bit calculation | Physical control channel bits are ", ", โฏ, "", where # = and the 16 Parity bits , , โฏ, # for the PCC are generated by using polynome gCRC16(D) according to clause 6.1.2. |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.5.2.2 CRC Masking for MIMO closed loop | The 16 parity bits , , โฏ, # are XOR masked with bitmask 0x5555 for signalling closed loop transmission. |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.5.2.3 CRC Masking for beamforming | The 16 parity bits , , โฏ, # are XOR masked with bitmask 0xAAAA for signalling beamformed transmission. ETSI ETSI TS 103 636-3 V2.1.1 (2024-10) 39 Release 2 |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.5.2.4 CRC attachment | CRC attachment is defined in clause 6.1.2. The bits after CRC attachment are denoted by , , . . . , $, where K = A + L, where L = 16. |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.5.3 Channel coding & rate matching | The bit sequence , , . . . , $ is channel encoded using the turbo encoder defined in clause 6.1.4 and rate matched to transmission on ! = 98 resource elements with = 2 for QPSK modulation and with single spatial stream = 1 as specified in clause 6.1.5. For all PCC transmissions redundancy version number ... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.5.4 Scrambling | The block channel encoded bits &, &, . . . , &, shall be scrambled, resulting in a block of scrambled bits: ( = )& + * + ,-( 2 where the scrambling sequence g(i) is given by clause 6.2. The scrambling sequence shall be initialized with * = 0.44454354. |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.5.5 Symbol mapping | Bit sequence by (, (, . . . , ( is mapped into complex valued QPSK modulation symbols ., ., . . . , . as defined in clause 6.3.1.2. The length of the modulated symbol vector is = ! . |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.5.6 Spatial multiplexing | Modulated symbols ., ., . . . , . are mapped to 0th spatial stream according to clause 6.3.2, thus: .()() = .() where = 0, . . . , โ1 and = ! . |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.5.7 Transmit stream mapping | Modulated symbols .()() from spatial stream 0 in case of single antenna transmission or spatial multiplexing are mapped directly to corresponding transmit stream as specified in clause 6.3.3.1 or in case of transmit diversity precoded as specified in clause 6.3.3.2 producing output ' ( , = 0, . . . , โ1, where... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.5.8 Beamforming | The modulated symbols ' ( , = 0, . . . , โ1 from transmit streams / = 0, . . . , โ1 are beamformed according to the transmit mode as specified in clause 6.3.4 to produce PCC transmission ( )(), = 0, . . . , on antenna port = 0, . . . , โ1. |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.5.9 Resource element mapping | Beamformed symbols symbols ' ( , = 0, . . . , ! โ1, = 0, . . . , โ1 are mapped into ! = 98 subcarriers as defined in clause 5.2.4. ETSI ETSI TS 103 636-3 V2.1.1 (2024-10) 40 Release 2 |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.6 Physical Data Channel (PDC) encoding | |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.6.1 Overall description | PDC encoding procedure is depicted in Figure 7.6.1-1. Figure 7.6.1-1: Physical Data Channel Encoding |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.6.2 CRC calculation | Physical data channel bits are ", ", โฏ, "", where the length of transport block is given by clause 5.3 according to the transmission allocation. Parity bits for the transport block are generated by using the polynome gCRC24A(D) according to clause 6.1.2. The bits after CRC attachment are denoted by 0, 0, . . . , ... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.6.3 Code block segmentation | Transport block is segmented into C independently turbo encoded blocks, each individually protected with 24-bit CRC as specified in clause 6.1.3. |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.6.4 Channel coding & rate matching | Each of the code block segments are individually channel coded and rate matched as specified in clauses 6.1.4 and 6.1.5. All non-HARQ transmissions shall use redundancy version index $%%& = 0 and set * = 1+ in clause 6.1.5.3. |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.6.5 Code block concatenation | Code block segments are concatenated according to clause 6.1.6. |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.6.6 Scrambling | The channel encoded and concatenated codeblocks 2, 2, . . . , 2,, where 3 = โ! โ shall be scrambled resulting in a block of scrambled bits: ( = )2 + * + ,-( 2 where the scrambling sequence *() is given by clause 6.2. ETSI ETSI TS 103 636-3 V2.1.1 (2024-10) 41 Release 2 If transmission is using Phy... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.6.7 Symbol mapping | Bit sequence by (, (, . . . , (, is mapped into complex valued modulation symbols ., ., . . . , . as defined in clause 6.3.1 according to the MCS selected for the transport block. The length of the modulated symbol vector is = ! โ . |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.6.8 Spatial multiplexing | Modulated symbols ., ., . . . , . are mapped to spatial streams . (), . . . , . () according to clause 6.3.2 for the selected transmission mode, where = ! โ and = 0, . . . , ! โ1. |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.6.9 Transmit stream mapping | Modulated symbols from spatial stream mapping . (), . . . , . () are precoded to (), . . . , ( ) according to the transmission mode, where is the number of transmit streams and = 0, . . . , ! โ1. For single antenna transmission the mapping is specified in clause 6.3.3.1. For transmit divers... |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.6.10 Beamforming and antenna port mapping | The modulated symbols ( ), = 0, . . . , ! โ1 from transmit streams / = 0, . . . , โ1 are beamformed according to the transmit mode as specified in clause 6.3.4 to produce PDC transmission ( ) , = 0, . . . , ! โ1 on antenna ports = 0, . . . , โ1. |
079ec1062b1e3a23370df289fea6f113 | 103 636-3 | 7.6.11 Resource element mapping | Beamformed symbols ( ), = 0, . . . , ! โ1, = 0, . . . , โ1 are mapped into ! subcarriers as defined in clause 5.2.5. ETSI ETSI TS 103 636-3 V2.1.1 (2024-10) 42 Release 2 Annex A (normative): Modulation and coding schemes Modulation and coding schemes are listed in Table A-1, where denotes the numb... |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 1 Scope | The present document establishes the minimum RF requirements for DECT-2020 New Radio (NR) Radio Devices (RDs). For clarity these requirements cover both Fixed Termination point (FT) as well as Portable Termination point (PT). |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 2 References | |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 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 referenced document (including any amendments) applies. Referenced documents which a... |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 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 referenced document (including any amendments) applies. NOTE: While any hyperlinks i... |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 3 Definition of terms, symbols and abbreviations | |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 3.1 Terms | For the purposes of the present document, the following terms apply: network ID: network identity as defined in ETSI TS 103 636-4 [3] transmitter ID: transmitter short radio identity ID as defined in ETSI TS 103 636-4 [3] transmitted packet: transmission of physical layer packet of given length defined in ETSI TS 103 6... |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 3.2 Symbols | For the purposes of the present document, the following symbols apply: ฮฑ Leaky integrator filter forgetting factor Fourier transform scaling factor Nominal channel bandwidth Transmission bandwidth Guard band ( โ) Bandhigh edge High edge of the band for blocking signal BWInterferer Bandwidth of the interf... |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 3.3 Abbreviations | For the purposes of the present document, the abbreviations given in ETSI TS 103 636-1 [i.3] and the following apply: NOTE: An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in ETSI TS 103 636-1 [i.3]. ACS Adjacent Channel Selectivity ACLR Adjacent Ch... |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 4 General | |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 4.1 Introduction | The present document defines the minimum requirements for DECT-2020 NR radio devices. Radio channel arrangements, operating channel bandwidths and supported bands are defined in clause 5. The present document defines operating bandwidths 1,728 MHz, 3,456 MHz and 6,912 MHz. The channel numbering scheme enables to assign... |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 4.3 Applicability of minimum requirements | a) In the present document, the Minimum Requirements are specified as general requirements and additional requirements. Where the Requirement is specified as a general requirement, the requirement is mandated to be met in all scenarios. ETSI ETSI TS 103 636-2 V2.1.1 (2024-10) 10 Release 2 b) The spurious emissions powe... |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 5 Operating bands and channel arrangement | |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 5.1 General | This clause defines the DECT-2020 operating frequency bands, channel bandwidth(s) for communication and operating channel frequencies for the present document release. This clause also defines the radio device reference time accuracy requirement. |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 5.2 Operating bands | Radio device operating band numbering is defined in table 5.2-1. Radio device may implement one or more band support depending its capabilities. Table 5.2-1: Operating band numbering Band number Receiving band (MHz) Transmitting band (MHz) 1 1 880 to 1 900 1 880 to 1 900 2 1 900 to 1 920 1 900 to 1 920 3 2 400 to 2 483... |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 5.3 Operating channel bandwidths | |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 5.3.1 General | This clause defines the transmission bandwidths for this release. NOTE: Additional channel bandwidths option may be added in the future releases. |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 5.3.2 Channel bandwidth | DECT-2020 NR supports flexible physical layer numerology defined in ETSI TS 103 636-3 [2], clause 4.3, table 4.3-1. ETSI ETSI TS 103 636-2 V2.1.1 (2024-10) 11 Release 2 Table 5.3.2-1: Channel bandwidth Parameter Operating channel bandwidth I Operating channel bandwidth II Operating channel bandwidth III Nominal channel... |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 5.4 Channel arrangement | |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 5.4.1 Channel spacing | The minimum channel spacing shall be 1,728 MHz between adjacent channels centre to centre frequencies. In wider operating bandwidth cases the channel centre frequencies can be adjusted with 0,864 MHz in bands 1 to 12 and band 22. For bands 13 to 16 and bands 20 to 21, the minimum channel centre frequency step size shal... |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 5.4.2 Channel raster | The radio transmission is possible with defined channel centre frequencies. Absolute centre frequencies are defined covering the frequency range from 450 MHz to 5 875 MHz. The absolute channel numbers are signalled with 13-bits frequency channel IE defined in ETSI TS 103 636-4 [3]. For bands 1, 2 and 3, 4, 5, 6, 7, 8, ... |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 5.4.3 Operating channel change time | |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 5.4.3.1 Operating channel change time definition | RD may change frequency during the operation to reduce interference or requested by the other party for better communication quality. The operating channel change time is defined as a time when the frequency channel change request is received by the RD to the time when RD is ready to transmit in a new frequency. The op... |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 5.4.3.2 Operating channel change time requirement | The maximum time allowed for RD to change operating channel is 200 ยตs. The operating channel change time includes channel sensing measurement. |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 5.5 Reference time | |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 5.5.1 General | The reference time is a notional clock to which the timing of the radio frames is related. |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 5.5.2 Reference time accuracy | The radio device reference time accuracy requirement is defined in table 5.5.2-1. Table 5.5.2-1: Reference time accuracy requirement Accuracy requirement Normal contitions ยฑ10 ppm Extreme conditions ยฑ15 ppm ETSI ETSI TS 103 636-2 V2.1.1 (2024-10) 13 Release 2 |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 6 Transmitter characteristics | |
80d37856088f63e7d750d5ebb6f8499b | 103 636-2 | 6.1 General | Transmitter characteristics are specified at the antenna connector of the Radio Device (RD) with single antenna transmissions. The RD having integral antenna, a reference antenna gains of 0 dBi is assumed. NOTE: Additional power classes may be added in later releases. |
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