August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`ETRI Proposal
`to IEEE 802.11 TGn
`
`Heejung Yu, Taehyun Jeon, Sok-Kyu Lee,
`Myung-Soon Kim, Eun-young Choi, Seung-Ku Hwang
`
`Next Generation Wireless LAN Research Team
`ETRI
`{heejung, thjeon, sk-lee, mskim75, eychoi, skhwang}@etri.re.kr
`
`Submission
`
`Slide 1
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000001
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Contents
`
`• Proposed technologies for >200Mbps in PHY
`– MIMO-OFDM
`– Dual band
`
`• Detail Standard
`
`• Simulation Results
`
`• Conclusions
`
`Submission
`
`Slide 2
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000002
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Proposed technologies
`for >200Mbps in PHY
`
`Submission
`
`Slide 3
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000003
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Candidate technologies
`
`• Legacy IEEE 802.11a => 20MHz BW, 54Mbps
`• To achieve more than 100Mbps at the top of the MAC
`SAP, we need x3 or x4 data rate.
`– Depending on MAC efficiency
`• To extend x4 transmission
`– MIMO (improve spectral efficiency)
`– Bandwidth extension
`– High order modulation
`– High rate coding
`
`Submission
`
`Slide 4
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000004
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`MIMO
`
`• Data rate can be increased with the number of Tx
`antennas.
`• We have some problem in using 3 and more stream.
`– Implementation complexity
`– Limitation on antenna spacing, high MIMO channel
`correlation can be a problem.
`
`• So, we cannot fully rely on the MIMO technology for
`3 or 4x data rate.
`
`Submission
`
`Slide 5
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000005
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Bandwidth Extension
`
`• Clock doubling
`
`64 subcarrier
`
`• Dual band
`
`64 subcarrier
`
`40MHz
`
`64 subcarrier
`
`64 subcarrier
`
`20MHz
`• New OFDM parameter
`
`40MHz
`
`xxx subcarrier
`
`40MHz
`
`Submission
`
`Slide 6
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000006
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Bandwidth Extension
`
`• Clock doubling
`– 802.11a modem with clock switching function
`– Protection mechanism for compatibility
`• Dual band
`– 802.11a modem (2 units) or 802.11a modem with some
`change( using 128 point FFT)
`– Compatible with legacy 802.11a (refer specification part)
`• New OFDM parameter
`– 802.11a + new modem with new OFDM parameters( # of
`subcarrier, # of CP, etc.)
`– Protection mechanism for compatibility
`
`Submission
`
`Slide 7
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000007
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Dual-band
`
`• Merits
`– More flexible implementation
`• We extend threefold, fourfold BW systematically by
`increasing number of FFT or FFT size.
`– Compatible preamble and SIGNAL field is possible.
`– More robust to DC-offset (11 DC-carrier)
`
`• Demerits
`– Reduce the number of channel
`– In some countries, only 20MHz channel usage is allowed
`
`Submission
`
`Slide 8
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000008
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Max. data rate (mandatory)
`
`• # of Tx and Rx antennas = 3
`– We use 2 Tx antennas out of 3 antennas (include Tx
`antenna selection option)
`• # of Tx streams (MIMO gain) = 2
`• Dual-band (data rate gain) = 2
`
`• Achievable Data Rate = 2 x 2 x (legacy rate)
`= 216Mbps
`
`– In optional mode, 288Mbps (256-QAM, 3/4 code rate) is
`possible.
`
`Submission
`
`Slide 9
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000009
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Details of ETRI PHY specification
`
`Submission
`
`Slide 10
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000010
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Main features
`
`• Compatible with IEEE 802.11a
`• Bandwidth : 20 or 40MHz
`• Multiple antennas : 2 Tx antennas
`– 3 Rx antennas are recommended.
`– Tx antenna selection is available.
`• Modulation : Legacy OFDM, SDM-OFDM, STBC-OFDM
`• Data Rate
`– 20MHz BW:6,9,12,18,24,36,48,54,72,96,108,128,144 Mbps
`– 40MHz BW : doubled
`
`Submission
`
`Slide 11
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000011
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`TXVECTOR, RXVECTOR
`
`• BANDWIDTH and MODE are added in TX/RX VECTOR
`– BANDWIDTH : PHY can use consecutive two 20MHz band for
`higher data rate.
`
`– MODE : transmission scheme
`• Legacy OFDM
`• SDM-OFDM (Spatial Division Multiplexing)
`• STBC-OFDM (Space-Time Block Code)
`
`Submission
`
`Slide 12
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000012
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Frame Format
`
`• Legacy OFDM
`
`P LC P H ead er
`
`R ate
`4 b its
`
`A ntenna
`1 b it
`
`Leng th
`12 b its
`
`P arity
`1 b it
`
`Tail
`6 b its
`
`S ervice
`16 b its
`
`P S D U
`
`Tail
`6 b its
`
`P ad b its
`
`C o d ed O FD M
`(B P S K , r= 1/2)
`
`C o d ed O FD M
`(R ate is g iven in S ig nal sym b o l)
`
`P ream b le
`12 sym b o ls
`
`S ig nal
`O ne O FD M sym b o l
`
`D ata
`Variab le num b er o f O FD M sym b o ls
`
`• STBC-OFDM, SDM-OFDM
`
`16usec
`
`4 usec
`
`P LC P H eader
`
`R ate
`4 bits
`
`A ntenna
`1 bit
`
`Length
`12 bits
`
`P arity
`1 bit
`
`Tail
`6 bits
`
`2 Long
`sequences
`
`S ervice
`16 bits
`
`P S D U
`
`Tail
`6 bits
`
`P ad bits
`
`C oded O FD M
`(B P S K , r= 1/2)
`
`C oded O FD M
`(R ate is given in S ignal sym bol)
`
`P ream ble
`12 sym bols
`
`S ignal
`O ne O FD M sym bol
`
`2 Long
`P ream bles
`
`D ata
`Variable num ber of O FD M sym bols
`
`Submission
`
`Slide 13
`
`Heejung Yu, ETRI
`
`16usec
`
`4 usec
`
`8 usec
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000013
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`PCLP Preambles
`
`• Legacy OFDM
`
`0.8 x 10 = 8 u s e c
`
`1.6 + 3.2 x 2 = 8 u s e c
`
`0.8 + 3.2 = 4 u s e c
`
`0.8 + 3.2 = 4 u s e c
`
`t1
`
`t2
`
`t3
`
`t4
`
`t5
`
`t6
`
`t7
`
`t8
`
`t9
`
`t1 0
`
`G I2
`
`T 1
`
`T 2
`
`G I
`
`S IG N A L
`
`G I
`
`D a ta 1
`
`• STBC-OFDM, SDM-OFDM
`Even
`Even
`
`0.8 x 10 = 8 usec
`
`1.6 + 3.2 x 2 = 8 usec
`
`t1
`
`t2
`
`t3
`
`t4
`
`t5
`
`t6
`
`t7
`
`t8
`
`t9
`
`t10
`
`G I2
`
`T1
`
`T2
`
`G I
`
`0.8 + 3.2 = 4 usec
`
`Even
`
`S IG NA L
`
`(0.8 + 3.2) x 2 = 8 usec
`
`G IOdd
`
`G I
`
`T1
`
`0.8 x 10 = 8 usec
`
`Odd
`
`t1
`
`t2
`
`t3
`
`t4
`
`t5
`
`t6
`
`t7
`
`t8
`
`t9
`
`t10
`
`G I2
`
`Submission
`
`1.6 + 3.2 x 2 = 8 usec
`
`Odd
`
`T1
`
`0.8 + 3.2 = 4 usec
`
`Odd
`
`S IG NA L
`
`T2
`
`G I
`
`Slide 14
`
`(0.8 + 3.2) x 2 = 8 usec
`
`Even
`
`G I
`
`G I
`
`T1
`
`0.8 + 3.2 = 4 usec
`
`T2
`
`G I
`
`D ata 1
`
`0.8 + 3.2 = 4 usec
`
`T2
`
`G I
`
`D ata 1
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000014
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Preamble Pattern
`(Single Antenna Single Band)
`
`• Short preamble
`
`
`j
`j
`j
`S
`j
`1,0,0,0,
`1,0,0,0,
`1,0,0{613
`1,0,0,0,
`
`
`
`
`
`
`26,26
`
`j
`j
`j
`1,0,0,0,
`1,0,0,0,
`
`
`
` 1,0,0,0
`1,0,0,0,
`
`
`
`
`
`1,0,0,0,
`
`j
`1,0,0,0,
`
`
`j
`1,0,0,0,
`
`j
`1,0,0,0,
`
`
`j
`,0,0,0,0,
`j
`}0,0,
`
`j
`
`k
`2
`
`
`tf
`
`
`
`
`e
`
`k
`
`26
`
`S
`26
`
`
`
`
`
`)(t
`
`
`
`k
`
`
`
`r
`
`)(t
`w
`
`TSHORT
`SHORT
`• Long preamble
`L
`,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1{
`
`
`
`
`
`
`
`26,26
`
`
`
`
`
`
`
`
`
`
`
` }11111111111111111111111111 , ,,,, ,,,, ,, ,,,,, ,,, ,,,,,,
`
`
`
`
`
`
`
`
`
`
`
`
`
`j
`
`k
`2
`
`
`Tt
`f
`(
`
`GI
`
`2
`
`)
`
`Slide 15
`
`Heejung Yu, ETRI
`
`26
`
`
`
`eL
`
`k
`26
`
`
`
`r
`LONG
`
`
`
`)(t
`
`
`
`w
`TLONG
`
`
`
`)(t
`
`
`
`k
`
`Submission
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000015
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Preamble Pattern
`(Dual Antenna Single Band)
`
`• Short preamble
`– (Ant 0 : even subcarriers, Ant 1 : odd subcarriers)
`• Ant 0
`
`• Ant 1
`
`• Long preamble
`– (Ant 0 : even subcarriers, Ant 1 : odd subcarriers)
`• Ant 0
`
`• Ant 1
`
`Submission
`
`Slide 16
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000016
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Preamble Pattern
`(Single Antenna Dual Band)
`
`• Short preamble (concatenation of single band
`preambles)
`
`j
`
`k
`2
`
`
`tf
`
`
`
`
`e
`
`k
`
`58
`
`S
`58
`
`
`
`
`
`r
`SHORT
`
`
`
`)(t
`
`
`
`w
`TSHORT
`
`
`
`)(t
`
`
`
`k
`
`• Long preamble (concatenation of single band
`preambles)
`
`j
`
`k
`2
`
`
`Tt
`f
`(
`
`GI
`
`2
`
`)
`
`58
`
`eL
`
`k
`58
`
`
`
`
`
`r
`LONG
`
`
`
`)(t
`
`
`
`w
`TLONG
`
`
`
`)(t
`
`
`
`k
`
`Submission
`
`Slide 17
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000017
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Preamble Pattern
`(Dual Antenna Dual Band)
`• Short preamble (concatenation of single band preambles)
`– Ant 0
`
`– Ant 1
`
`• Long preamble (concatenation of single band preambles)
`– Ant 0
`
`– Ant 1
`
`Submission
`
`Slide 18
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000018
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Preamble Properties
`
`• Repetition property is maintained
`• Same auto-correlation property
`• PAPR for single band preamble
`– Legacy-OFDM mode : 2.09dB (short), 3.17dB(long)
`– SDM/STBC-OFDM mode
`• Antenna 0 : 4.69dB(short), 5.58dB(long)
`• Antenna 1 : 4.69dB(short), 5.85dB(long)
`• PAPR for dual band preamble
`– Legacy-OFDM mode : 5.10dB (short), 6.18dB(long)
`– SDM/STBC-OFDM mode
`• Antenna 0 : 5.80dB(short), 7.05dB(long)
`• Antenna 1 : 5.80dB(short), 8.86dB(long)
`• Cross correlation between Tx antenna
`– Orthogonal preamble by using subcarriers alternatively
`
`Submission
`
`Slide 19
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000019
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`SIGNAL bit assignment
`
`• 802.11n device uses the R4 to distinguish the legacy and multi-
`antenna
`– R4 = 1 : legacy OFDM
`– R4 = 0 : multi-antenna (STBC-OFDM, SDM-OFDM)
`• 802.11n device uses the reserved bit to distinguish STBC-OFDM
`and SDM-OFDM.
`– For legacy device, discard
`– For Alamouti code, A = 0
`– For SDM, A = 1
`
`RATE
`
`ANTENNA
`
`R1 R2 R3 R4 A
`
`LSB
`
`LENGTH
`
`PARITY
`
`TAIL
`
`MSB P
`
`0
`
`0
`
`0
`
`0
`
`0
`
`0
`
`0
`
`1
`
`2
`
`3
`
`4
`
`5
`
`6
`
`7
`
`8
`
`9
`
`10
`
`11
`
`12
`
`13
`
`14
`
`15
`
`16
`
`17
`
`18
`
`19
`
`20
`
`21
`
`22
`
`23
`
`Submission
`
`Transmit order
`
`Slide 20
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000020
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`RATE and ANTENNA field definition
`Rate-dependant parameters
`
`{R1-R4, A} Data
`rate
`6
`
`1101x
`
`Modulation Coding
`rate
`12
`
`BPSK
`
`1111x
`
`0101x
`
`0111x
`
`1001x
`
`1011x
`
`0001x
`
`0011x
`
`9
`
`12
`
`18
`
`24
`
`36
`
`48
`
`54
`
`BPSK
`
`QPSK
`
`QPSK
`
`16-QAM
`
`16-QAM
`
`64-QAM
`
`64-QAM
`
`34
`
`12
`
`34
`
`12
`
`34
`
`2/3
`
`34
`
`Submission
`
`Slide 21
`
`NBPSC NCBPS NDBPS
`
`1
`
`1
`
`2
`
`2
`
`4
`
`4
`
`6
`
`6
`
`48
`
`48
`
`96
`
`96
`
`192
`
`192
`
`288
`
`288
`
`24
`
`36
`
`48
`
`72
`
`96
`
`144
`
`192
`
`216
`
`Antenna
`mode
`Legacy OFDM
`
`Legacy OFDM
`
`Legacy OFDM
`
`Legacy OFDM
`
`Legacy OFDM
`
`Legacy OFDM
`
`Legacy OFDM
`
`Legacy OFDM
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000021
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`RATE and ANTENNA field definition
`Rate-dependant parameters
`
`{R1-R4, A} Data
`rate
`6
`
`11000
`
`Modulation Coding
`rate
`12
`
`BPSK
`
`11100
`
`01000
`
`01100
`
`10000
`
`10100
`
`00000
`
`00100
`
`9
`
`12
`
`18
`
`24
`
`36
`
`48
`
`54
`
`BPSK
`
`QPSK
`
`QPSK
`
`16-QAM
`
`16-QAM
`
`64-QAM
`
`64-QAM
`
`34
`
`12
`
`34
`
`12
`
`34
`
`2/3
`
`34
`
`Submission
`
`Slide 22
`
`NBPSC NCBPS NDBPS
`
`1
`
`1
`
`2
`
`2
`
`4
`
`4
`
`6
`
`6
`
`48
`
`48
`
`96
`
`96
`
`192
`
`192
`
`288
`
`288
`
`24
`
`36
`
`48
`
`72
`
`96
`
`144
`
`192
`
`216
`
`Antenna
`mode
`STBC-OFDM
`
`STBC-OFDM
`
`STBC-OFDM
`
`STBC-OFDM
`
`STBC-OFDM
`
`STBC-OFDM
`
`STBC-OFDM
`
`STBC-OFDM
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000022
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`RATE and ANTENNA field definition
`Rate-dependant parameters
`
`{R1-R4, A} Data
`rate
`72
`
`10101
`
`Modulation Coding
`rate
`34
`
`16-QAM
`
`00001
`
`00101
`
`11001
`
`01001
`
`96
`
`108
`
`128
`
`144
`
`64-QAM
`
`64-QAM
`
`256-QAM
`
`256-QAM
`
`2/3
`
`34
`
`2/3
`
`34
`
`•
`•
`•
`•
`
`These parameters are based on single band.
`NBPSC : Coded bits per subcarrier
`NCBPS : Coded bits per OFDM symbol
`NDBPS : Data bits per OFDM symbol
`
`NBPSC NCBPS NDBPS
`
`8
`
`12
`
`12
`
`16
`
`16
`
`384
`
`576
`
`576
`
`768
`
`768
`
`288
`
`384
`
`432
`
`512
`
`576
`
`Antenna
`mode
`SDM-OFDM
`
`SDM-OFDM
`
`SDM-OFDM
`
`SDM-OFDM
`
`SDM-OFDM
`
`Submission
`
`Slide 23
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000023
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`SIGNAL Field Modulation
`• Single Antenna single band (same as 802.11a)
`– Subcarrier allocation :
`k
`Dk
`,
`26
`26
`
`
`
`• Dual antenna single band
`– Subcarrier allocation :
`
`D
`)0(
`k
`
`
`
`• Single antenna dual band
`– Subcarrier allocation :
`
`k
`odd is
` if
`otherwise
`
`
`
`D
`k
`
`,
`
`
`
`2
`,0
`
`
`D
`)1(
`k
`
`
`
`k
` even, is
` if
`
`otherwise
`
`2
`
`
`
`D
`k
`
`
`
`0
`
`
`D MHz
`40(
`58,58
`
`
`)
`
`
`
`
`
`{D
`
`
`26,26
`
`,0,0,0,0,0,0,0,0,0,0,0,
`
`D
`
`
`26,26
`
`}
`
`• Dual antenna dual band
`– Subcarrier allocation :
`D
`
`MHz
`40,0(
`58,58
`
`
`)
`
`
`
`{2
`
`
`D
`
`)0(
`26,26
`
`
`,0,0,0,0,0,0,0,0,0,0,0,
`
`D
`
`)0(
`26,26
`
`
`}
`
`D MHz
`40,1(
`58,58
`
`
`)
`
`
`
`{2
`
`
`D
`)1(
`26,26
`
`
`,0,0,0,0,0,0,0,0,0,0,0,
`
`D
`
`)1(
`26,26
`
`
`}
`
`Submission
`
`Slide 24
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000024
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`DATA Field (changed parts)
`Pad bits, Data arbitrator
`
`• Pad bits
`– To make DATA bits to be an integer multiple of NDBPS
`(Legacy OFDM, SDM-OFDM), or 2NDBPS(STBC-OFDM).
`• Data arbitrator
`– Receive one byte from MAC,
`even numbered 4 bits directed to scrambler(channel) 0 and
`odd numbered 4 bits to scrambler(channel) 1.
`
`M A C
`
`1 b yte (8 b it) inp ut
`
`S cram b ler 0
`
`even num b ered 4 b its
`
`S cram b ler 1
`o d d num b ered 4 b its
`
`Submission
`
`Slide 25
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000025
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`DATA Field (changed parts)
`Interleaving
`
`• Interleaver : block interleaver
`– Interleaver size : NCBPS(single band), 2NCBPS(dual band)
`• Interleaver (Single band. In dual band, all NCBPS’s are replaced with 2NCBPS)
`
`i
`
`
`
`(
`
`N
`
`CBPS
`
`)(16/
`
`k
`
`
`
` )16 mod
`
`
`
`floor
`
`(
`
`k
`
`)16/
`
`k
`
`
`
`,1,0
`
`,
`
`N
`
`
`
`CBPS
`
`
`
`1
`
`
`
`1
`
`,
`
`N
`
`CBPS
`
`OFDM
`
`
`j
`
`s
`
`
`floor
`
`
`
` si )/(
`
` Ni(
`
`
`
`CBPS
`
`
`
`floor
`
`16(
`
`
`
`
`
` Ni /
`
`
`
` mod ))
`
`s
`
`CBPS
`
`i
`
`
`
`,1,0
`
`
`
` and
`STBC
`
`Legacy
`,
`1
`s
`BPSCNm
`m
`max(
`)1,2/
`
`
`
`SDM,2/1
`OFDM
`
`• Deinterleaver (Single band. In dual band, all NCBPS’s are replaced with 2NCBPS)
`j
`CBPSN
`,1,0
`,
`1
`s
`i
`floor
`
` sj )/
`Nj
`floor
`
` Nj /
` s mod ))
`
`
`(
`(
`16(
`
`
`
`
`
`
`
`CBPS
`
`
`
`CBPS
`
`
`
`
`
`
`
`k
`
`
`
`16
`
`
` (Ni
`
`
`
`
`)1
`
`floor
`
`16(
`
`
`
`
`
` / Ni
`
`)
`
`CBPS
`
`CBPS
`
`i
`
`
`
`,1,0
`
`,
`
`CBPSN
`
`
`
`1
`
`
`
`Submission
`
`Slide 26
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000026
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`DATA Field (changed parts)
`Modulation mapping
`
`Q-output
`
`00001000
`
`00011000
`
`00111000
`
`00101000
`
`01101000
`
`01111000
`
`01111000
`
`00001001
`
`00011001
`
`00111001
`
`00101001
`
`01101001
`
`01111001
`
`01111001
`
`00001011
`
`00011011
`
`00111011
`
`00101011
`
`01101011
`
`01111011
`
`01111011
`
`01001000
`15
`
`01001001
`13
`
`01001011
`11
`
`11001000
`
`11011000
`
`11111000
`
`11101000
`
`10101000
`
`10111000
`
`10011000
`
`10001000
`
`11001001
`
`11011001
`
`11111001
`
`11101001
`
`10101001
`
`10111001
`
`10011001
`
`10001001
`
`11001011
`
`11011011
`
`11111011
`
`11101011
`
`10101011
`
`10111011
`
`10011011
`
`10001011
`
`00001010
`
`00011010
`
`00111010
`
`00101010
`
`01101010
`
`01111010
`
`01111010
`
`11001010
`
`11011010
`
`11111010
`
`11101010
`
`10101010
`
`10111010
`
`10011010
`
`10001010
`
`00001110
`
`00011110
`
`00111110
`
`00101110
`
`01101110
`
`01111110
`
`01111110
`
`00001111
`
`00011111
`
`00111111
`
`00101111
`
`01101111
`
`01111111
`
`01111111
`
`00001101
`
`00011101
`
`00111101
`
`00101101
`
`01101101
`
`01111101
`
`01111101
`
`00001100
`
`00011100
`
`00111100
`
`00101100
`
`01101100
`
`01111100
`
`01111100
`
`01001010
`9
`
`01001110
`7
`
`01001111
`5
`
`01001101
`3
`
`01001100
`1
`
`11001110
`
`11011110
`
`11111110
`
`11101110
`
`10101110
`
`10111110
`
`10011110
`
`10001110
`
`11001111
`
`11011111
`
`11111111
`
`11101111
`
`10101111
`
`10111111
`
`10011111
`
`10001111
`
`11001101
`
`11011101
`
`11111101
`
`11101101
`
`10101101
`
`10111101
`
`10011101
`
`10001101
`
`11001100
`
`11011100
`
`11111100
`
`11101100
`
`10101100
`
`10111100
`
`10011100
`
`10001100
`
`- 15 - 13 - 11 - 9 - 7 - 5 - 3 - 1 1 3 5 7 9 11 13 15
`
`- 1
`01000100
`
`• Optional 256-QAM is added to 802.11a modulations
`– Kmod =
`/1
`170
`Input bits
`I-output
`(b0, b1, b2, b3)
`0000
`0001
`0011
`0010
`0110
`0111
`0101
`0100
`1100
`1101
`1111
`1110
`1010
`1011
`1001
`1000
`
`Input bits
`(b4, b5, b6, b7)
`0000
`0001
`0011
`0010
`0110
`0111
`0101
`0100
`1100
`1101
`1111
`1110
`1010
`1011
`1001
`1000
`
`-15
`-13
`-11
`-9
`-7
`-5
`-3
`-1
`1
`3
`5
`7
`9
`11
`13
`15
`
`-15
`-13
`-11
`-9
`-7
`-5
`-3
`-1
`1
`3
`5
`7
`9
`11
`13
`15
`
`00010010
`
`00100010
`
`01100010
`
`01110010
`
`11000010
`
`11010010
`
`11110010
`
`11100010
`
`10100010
`
`10110010
`
`10010010
`
`10000010
`
`00000011
`
`00010011
`
`00110011
`
`00100011
`
`01100011
`
`01110011
`
`01110011
`
`00000001
`
`00010001
`
`00110001
`
`00100001
`
`01100001
`
`01110001
`
`01110001
`
`- 11
`01000011
`
`- 13
`01000001
`
`11000011
`
`11010011
`
`11110011
`
`11100011
`
`10100011
`
`10110011
`
`10010011
`
`10000011
`
`11000001
`
`11010001
`
`11110001
`
`11100001
`
`10100001
`
`10110001
`
`10010001
`
`10000001
`
`00000000
`
`00010000
`
`00110000
`
`00100000
`
`01100000
`
`01110000
`
`01110000
`
`11000000
`
`11010000
`
`11110000
`
`11100000
`
`10100000
`
`10110000
`
`10010000
`
`10000000
`
`- 15
`01000000
`
`Submission
`
`Slide 27
`
`Heejung Yu, ETRI
`
`00000100
`
`00010100
`
`00110100
`
`00100100
`
`01100100
`
`01110100
`
`01110100
`
`11000100
`
`11010100
`
`11110100
`
`11100100
`
`10100100
`
`10110100
`
`10010100
`
`10000100
`
`00000101
`
`00010101
`
`00110101
`
`00100101
`
`01100101
`
`01110101
`
`01110101
`
`00000111
`
`00010111
`
`00110111
`
`00100111
`
`01100111
`
`01110111
`
`01110111
`
`00000110
`
`00010110
`
`00110110
`
`00100110
`
`01100110
`
`01110110
`
`01110110
`
`00000010
`
`00110010
`
`01110010
`
`- 3
`01000101
`
`- 5
`01000111
`
`- 7
`01000110
`
`- 9
`01000010
`
`11000101
`
`11010101
`
`11110101
`
`11100101
`
`10100101
`
`10110101
`
`10010101
`
`10000101
`
`11000111
`
`11010111
`
`11110111
`
`11100111
`
`10100111
`
`10110111
`
`10010111
`
`10000111
`
`11000110
`
`11010110
`
`11110110
`
`11100110
`
`10100110
`
`10110110
`
`10010110
`
`10000110
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000027
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`DATA Field (changed parts)
`Antenna arbitration
`
`• Legacy OFDM
`– Single band case
`d
`
`
`
`i j),(
`
`nk,
`
`c
`
`k
`
`48
`
`n
`
`c
`c
`
`k
`
`
`
`d
`d
`
`
` )0,(i
`
`,nk
`
` )1,(i
`
`,nk
`
`– Dual band case
`
`k
`
`96
`
`n
`
`
`
`96
`
`n
`
`
`
`48
`
`c
`:
`mapped
`k
`n
`)96
`or
`48(
`)48(
`
`
`
` ),( ji
`k
`d
`:
`subcarrier
`in
`th
`
`
`,nk
`i
`to
`antenna
`Tx
`th
`
`
`k
`
`where
`,1,0
`,
`sequencenumber
`complex
`
`n
`directed
`is
`which
`symbol
`th
`OFDM
`
`j
`i
`j
`}1,0{
`,
`where
`,
`channel
`in
`
`
`,47,
`
`n
`
`
`
`,0
`
`N
`
`
`
`SYM
`
`
`
`Submission
`
`Slide 28
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000028
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`DATA Field (changed parts)
`Antenna arbitration
`
`
` ...) 2, 0,
`
`
`
`
`
`
`
`even (n symbolsOFDMnumberedfor
`
` ...) 3, , 1
`
`
`
`
`
`
`
`
` odd (n symbolsOFDMnumberedfor
`
`
`c
`k
`n
`96
`2
`
`-c
`
`1k2
` 1)/2-n(96
`
`
`2/
`
`
`
`
`
`• STBC-OFDM
`– Single band case
`• Ant 0
`
`d
`
`j
`),0(
`nk
`,
`
`
`
`
` ...) 2, 0,
`
`
`
`
`
`
`
`even (n symbolsOFDMnumberedfor
`
` ...) 3, 1,
`
`
`
`
`
`
`
`
` odd (n symbolsOFDMnumberedfor
`
`
`1k2
`n/2
`96
`
`
`k
`n
`2
`(96
`2/)1
`
`
`cc
`
`
`
`
`d
`
`j
`),1(
`nk
`,
`
`
`
`• Ant 1
`
`Ant1
`
`
`
`
`
`
`
`for even symbols OFDMnumbered
`
`
`
`
`
`
`for odd symbols OFDMnumbered
`
`n/2
`192
`1k2
`
`
`
`n
`k
`2
`(
`192
`2/)1
`
`
`
`cc
`
`
`
`
`d
`
`)0,1(
`nk
`,
`
`
`
`
`
`
`
`
`
`even symbols OFDMnumberedfor
`
`
`
`
`
`
` odd symbols OFDMnumberedfor
`
`96
`
`
`
`n/2
`192
`1k2
`
`
`
`n
`k
`2
`(
`192
`2/)1
`
`
`
`
`
`96
`
`cc
`
`
`
`
`d
`
`)1,1(
`nk
`,
`
`
`
`– Dual band case
`• Ant 0
`
`
`
`
`
`
`
`even symbols OFDMnumberedfor
`
`
`
`
`
`
` odd symbols OFDMnumberedfor
`
`
`
`
`
`
`for even symbols OFDM numbered
`
`
`
`
`
`
`for symbols OFDMnumbered odd
`
`96
`
`c
`n
`k
`2
`192
`
`
`-c
`
`1k2
` 1)/2-n(
`192
`
`
`c
`n
`k
`2
`192
`
`
`-c
`
`1k2
` 1)/2-n(
`192
`
`
`
`2/
`
`
`
`2/
`
`
`
`96
`
`
`
`
`
`
`
`
`
`d
`
`)0,0(
`nk
`,
`
`
`
`d
`
`)1,0(
`nk
`,
`
`
`
`Submission
`
`Slide 29
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000029
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`DATA Field (changed parts)
`Antenna arbitration
`
`d
`
`
` j),0(
`
`nk,
`
`c
`
`n
`k
`96
`2
`
`d
`
`
` j),1(
`
`nk,
`
`c
`
`n
`k
`96
`1
`2
`
`c
`c
`
`n
`k
`2
`192
`
`
`
`n
`k
`2
`192
`
`
`
`96
`
`c
`c
`
`n
`k
`2
`1
`192
`
`
`
`n
`k
`2
`1
`192
`
`
`
`96
`
`
`
`d
`d
`
`)0,0(
`
`,nk
`)1,0(
`
`,nk
`
`
`
`d
`d
`
`)0,1(
`
`,nk
`)1,1(
`
`,nk
`
`• SDM-OFDM
`– Single band case
`• Ant 0
`
`• Ant 0
`
`– Dual band case
`• Ant 0
`
`• Ant 1
`
`Submission
`
`Slide 30
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000030
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`DATA Field (changed parts)
`OFDM Modulation
`
`
`
`j
`
`k
`2
`
`
`f
`Tt
`(
`
`GI
`
`)
`
`
`
`2 (kMj
`
`
`
`Tt
`f
`(
`)
`
`GI
`
`)
`
`n
`
`1
`
`
`k
`
`{
`
`
`
` ),( ji
`
` ,nk
`
`
`
`
`
`,
`
`n
`
`• OFDM modulation for i-th antenna j-th channel
`– One OFDM symbol modulation
`47
` ),( ji
`
`r
`
`w
`)(t
`
`)(t
`e
`d
`p
`eP
`
`
`
`
`
`
`
`
`TSYM
`DATA
`k
`k
`}21,7,7,21
`0
`
`– Concatenation of multiple OFDM symbols
`SYMN
`ji
`ji
`r
`
`)(t
`
`(t
`r
`nT
`),(
`),(
`)
`
`
`
`SYM
`DATA
`DATA
`n
`0
`• OFDM modulation for dual band
`i
`MHz
`i
`i
`r
`
`t)(
`r
`t)(
`e
`
`r
`
`t)(
`e
`40,(
`)0,(
`)1,(
`
`
`
`
`DATA
`DATA
`DATA
`
`1
`
`
`
`
`,
`
`n
`
`)
`
`
`
`j
`
`2
`
`
`
`
`f
`
`t
`
`
`
`d
`
`j
`
`2
`
`
`
`
`f
`
`t
`
`
`
`d
`
`,
`
`i
`
`
`
`},1,0{
`
`f
`
`d
`
`
`
`10
`
`MHz
`
`-58
`
`-53
`
`-26
`
`-21
`
`-39
`
`-7
`
`32
`
`0
`
`-25
`
`7
`
`-11
`
`-6
`
`0
`
`6
`
`11
`
`subcarrier index for 128 FFT
`
`21
`
`26
`
`-26
`
`-21
`
`subcarrier index for tw o 64 FFT
`
`25
`
`-7
`
`32
`
`0
`
`39
`
`7
`
`53
`
`58
`
`21
`
`26
`
`Submission
`
`Slide 31
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000031
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Transmitter structure
`
`• Using one 128 (I)FFT structure
`
`Lo w er channel
`
`A ntenna 0
`
`p ilo t
`
`D ata
`A rb trato r
`
`scram b ler
`FE C co d er
`
`scram b ler
`FE C co d er
`
`Interleaver
`
`M ap p er
`
`A ntenna
`A rb itrat
`o r
`
`128
`IFFT
`
`128
`IFFT
`
`C P ad d
`
`I/Q
`m o d .
`
`C P ad d
`
`I/Q
`m o d .
`
`U p p er channel
`
`p ilo t
`
`A ntenna 1
`
`Submission
`
`Slide 32
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000032
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Transmitter structure
`
`• Modified structure with 64 point FFT
`
`M A C
`
`S /P
`
`scram b ler
`C C enco d er
`
`scram b ler
`C C enco d er
`
`Interle
`aver
`
`M ap
`p er
`
`A nt.
`A rb t.
`
`p ilo t
`
`p ilo t
`
`p ilo t
`
`p ilo t
`
`S /P
`
`S /P
`
`64
`FFT
`
`64
`FFT
`
`64
`FFT
`
`64
`FFT
`
`C P ad d
`
`C P ad d
`
`C P ad d
`
`C P ad d
`
`FIR
`channel
`b o nd ing
`
`FIR
`channel
`b o nd ing
`
`Submission
`
`Slide 33
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000033
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Transmit spectrum
`
`• Tx spectrum for dual band is the extended version of
`legacy 11a spectrum
`
`P o w er S p ectral D ensity (d B )
`
`Transm it S p ectrum M ask
`(no t b e scale)
`
`Typ ical S ig nal S p ectrum
`(an exam p le)
`
`- 20d B r
`
`- 28d B r
`
`- 40d B r
`
`- 40
`
`- 30 - 21 - 19
`
`19 21
`
`30
`
`40
`
`fc
`
`freq uency (M H z)
`
`Submission
`
`Slide 34
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000034
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Simulation Results
`
`Submission
`
`Slide 35
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000035
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Detection Method
`
`• In Legacy OFDM, Maximal Ratio Combining method is
`used.
`• In SDM-OFDM, Zero Forcing scheme is used.
`– The simplest and reasonable method considering both
`implementation complexity and performance
`– In higher order modulation and smaller number of Nt case,
`SNR loss between ZF and ML (Maximum Likelihood)
`becomes lower.
`
`Submission
`
`Slide 36
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000036
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`AWGN performance
`
`• 1 Tx, 1 Rx antenna (only for Legacy mode)
`
`AWGN performance (1x1)
`
`Legacy 6Mbps 1 ch
`Legacy 12Mbps 1 ch
`Legacy 24Mbps 1 ch
`Legacy 48Mbps 1 ch
`Legacy 54Mbps 1 ch
`0
`
`10
`5
`SNR per Rx antenna
`
`15
`
`20
`
`100
`
`10-1
`
`10-2
`
`10-3
`-5
`
`PER
`
`Submission
`
`Slide 37
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000037
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`AWGN performance
`
`• 2 Tx, 2 Rx antennas
`
`AWGN performance (2x2)
`
`Legacy 6Mbps 1 ch
`Legacy 24Mbps 1 ch
`Legacy 54Mbps 1 ch
`SDM 72Mbps 1 ch
`SDM 108Mbps 1 ch
`SDM 144Mbps 1 ch
`-5
`0
`
`10
`5
`SNR per Rx antenna
`
`15
`
`20
`
`25
`
`100
`
`10-1
`
`10-2
`
`PER
`
`10-3
`-10
`
`Submission
`
`Slide 38
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000038
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`AWGN performance
`
`• 2 (out of 3) Tx, 3 Rx antennas (We select 2 antennas
`out of 3 Tx antennas.)
`
`AWGN performance (3(2)x3)
`
`Legacy 6Mbps 1 ch
`Legacy 24Mbps 1 ch
`Legacy 54Mbps 1 ch
`SDM 72Mbps 1 ch
`SDM 108Mbps 1 ch
`SDM 144Mbps 1 ch
`-5
`0
`
`10
`5
`SNR per Rx antenna
`Slide 39
`
`15
`
`20
`
`25
`
`Heejung Yu, ETRI
`
`100
`
`10-1
`
`10-2
`
`10-3
`-10
`
`PER
`
`Submission
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000039
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`AWGN performance
`
`• 2 (out of 4) Tx, 4 Rx antennas (We select 2 antennas
`out of 4 Tx antennas.)
`
`In AWGN channel,
`Nr  => detection SNR 
`(no diversity gain)
`=> (Nr = 4) has 3dB gain
`over (Nr = 2).
`
`Nt , SNR per info. bit 
`(to normalize total Tx power)
`=> 54Mbps has 3dB gain
`over 108Mbps.
`
`15
`
`20
`
`25
`
`Slide 40
`
`Heejung Yu, ETRI
`
`AWGN performance (4(2)x4)
`
`Legacy 6Mbps 1 ch
`Legacy 24Mbps 1 ch
`Legacy 54Mbps 1 ch
`SDM 72Mbps 1 ch
`SDM 108Mbps 1 ch
`SDM 144Mbps 1 ch
`-5
`0
`
`10
`5
`SNR per Rx antenna
`
`100
`
`10-1
`
`10-2
`
`PER
`
`10-3
`-10
`
`Submission
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000040
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Non-AWGN performance
`• 2 Tx and 3 Rx antennas are used.
`• In Legacy mode, randomly selected single Tx
`antenna is used.
`• Antenna spacing
`– Tx spacing : 1 wavelength (2 out of 3 antennas are used.)
`– Rx spacing : ½ wavelength (3 antennas)
`• Power amplifier backoff : 10dB (p=3 RAPP mode)
`• CFO and timing offset : -13.675ppm
`• Channel model : B, D (with fluorescent effect), and E
`(NLOS)
`• Packet size : 1000 bytes
`
`Submission
`
`Slide 41
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000041
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Non-AWGN performance
`
`• Channel model B (NLOS)
`100
`
`Legacy 6Mbps 1 ch
`Legacy 24Mbps 1 ch
`Legacy 54Mbps 1 ch
`SDM 72Mbps 1 ch
`SDM 108Mbps 1 ch
`SDM 216Mbps 2 ch
`SDM 144Mbps 1 ch
`SDM 288Mbps 2 ch
`0
`5
`
`20
`15
`10
`SNR per Rx antenna
`
`25
`
`30
`
`35
`
`10-1
`
`10-2
`
`PER
`
`10-3
`
`10-4
`-5
`
`Submission
`
`Slide 42
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000042
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Non-AWGN performance
`
`• Channel Model D (NLOS)
`100
`
`Legacy 6Mbps 1 ch
`Legacy 24Mbps 1 ch
`Legacy 54Mbps 1 ch
`SDM 72Mbps 1 ch
`SDM 108Mbps 1 ch
`SDM 216Mbps 2 ch
`SDM 108Mbps 1 ch with fluor
`SDM 144Mbps 1 ch
`SDM 288Mbps 2 ch
`SDM 144Mbps 1 ch with fluor
`20
`15
`0
`5
`10
`SNR per Rx antenna
`
`25
`
`30
`
`35
`
`10-1
`
`10-2
`
`PER
`
`10-3
`
`10-4
`-5
`
`Submission
`
`Slide 43
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000043
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Non-AWGN performance
`
`• Channel model E (NLOS)
`100
`
`Legacy 6Mbps 1 ch
`Legacy 24Mbps 1 ch
`Legacy 54Mbps 1 ch
`SDM 72Mbps 1 ch
`SDM 108Mbps 1 ch
`SDM 216Mbps 2 ch
`SDM 144Mbps 1 ch
`SDM 288Mbps 2 ch
`0
`5
`
`20
`15
`10
`SNR per Rx antenna
`
`25
`
`30
`
`35
`
`10-1
`
`10-2
`
`PER
`
`10-3
`
`10-4
`-5
`
`Submission
`
`Slide 44
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000044
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Offset effect
`
`Solid : offset compensation
`performance
`Dash : zero offset
`performance
`
`CFO and timing tracking loop
`coefficients are optimized for
`high data rates.
`
`• Channel E (NLOS)
`100
`
`25
`
`30
`
`35
`
`Legacy 6Mbps 1 ch
`Legacy 24Mbps 1 ch
`Legacy 54Mbps 1 ch
`SDM 72Mbps 1 ch
`SDM 108Mbps 1 ch
`SDM 216Mbps 2 ch
`SDM 144Mbps 1 ch
`SDM 288Mbps 2 ch
`20
`15
`0
`5
`10
`SNR per Rx antenna
`
`10-1
`
`PER
`
`10-2
`-5
`
`Submission
`
`Slide 45
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000045
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Offset effect
`
`• Channel E (LOS), at 50dB SNR
`• Constellation of 108Mbps mode with different offset
`values
`
`-20ppm
`
`1.5
`
`1
`
`0.5
`
`0
`
`-0.5
`
`-1
`
`Q branch
`
`-40ppm
`
`1.5
`
`1
`
`0.5
`
`0
`
`-0.5
`
`-1
`
`Q branch
`
`20ppm
`
`1.5
`
`1
`
`0.5
`
`0
`
`-0.5
`
`-1
`
`Q branch
`
`40ppm
`
`1.5
`
`1
`
`0.5
`
`0
`
`-0.5
`
`-1
`
`Q branch
`
`-1.5
`-1.5
`
`-1
`
`-0.5
`
`0
`I branch
`
`0.5
`
`1
`
`1.5
`
`-1.5
`-1.5
`
`-1
`
`-0.5
`
`0
`I branch
`
`0.5
`
`1
`
`1.5
`
`-1.5
`-1.5
`
`-1
`
`-0.5
`
`0
`I branch
`
`0.5
`
`1
`
`1.5
`
`-1.5
`-1.5
`
`-1
`
`-0.5
`
`0
`I branch
`
`0.5
`
`1
`
`1.5
`
`40ppm
`
`20ppm
`
`-20ppm
`
`-40ppm
`
`Submission
`
`Slide 46
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000046
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Offset effect
`
`• Channel E (LOS), at 50dB SNR
`• Constellation of 6Mbps mode with different offset
`values
`
`-40ppm
`
`1.5
`
`1
`
`0.5
`
`0
`
`-0.5
`
`-1
`
`Q branch
`
`-10ppm
`
`1.5
`
`1
`
`0.5
`
`0
`
`-0.5
`
`-1
`
`Q branch
`
`10ppm
`
`1.5
`
`1
`
`0.5
`
`0
`
`-0.5
`
`-1
`
`Q branch
`
`40ppm
`
`1.5
`
`1
`
`0.5
`
`0
`
`-0.5
`
`-1
`
`Q branch
`
`-1.5
`-1.5
`
`-1
`
`-0.5
`
`0
`I branch
`
`0.5
`
`1
`
`1.5
`
`-1.5
`-1.5
`
`-1
`
`-0.5
`
`0
`I branch
`
`0.5
`
`1
`
`1.5
`
`-1.5
`-1.5
`
`-1
`
`-0.5
`
`0
`I branch
`
`0.5
`
`1
`
`1.5
`
`-1.5
`-1.5
`
`-1
`
`-0.5
`
`0
`I branch
`
`0.5
`
`1
`
`1.5
`
`40ppm
`
`10ppm
`
`-10ppm
`
`-40ppm
`
`Submission
`
`Slide 47
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000047
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Conclusions
`
`Submission
`
`Slide 48
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000048
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Conclusions
`
`• In this proposal, MIMO-OFDM with 2 transmit
`antennas and dual band scheme are used for higher
`data rate (throughput).
`– SDM-OFDM : double data rate
`– Dual band : double data rate
`– STBC-OFDM : increase link reliability (optional)
`• To satisfy the FR (100Mbps throughput in 20MBz),
`256-QAM is added (144Mbps in 20MHz band)
`• Compatible with 802.11a (Preamble and SINGAL
`structure)
`
`Submission
`
`Slide 49
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000049
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`Appendix
`
`Submission
`
`Slide 50
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000050
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`A1. Dual-band
`
`• Subcarriers of 128 points FFT are divided into two 64
`subcarriers corresponding to 64 FFT in 802.11a/g.
`
`64 subcarriers
`
`11 “0” carriers
`64 subcarriers
`
`40MHz
`
`11 “0” carriers
`
`Slide 51
`
`Heejung Yu, ETRI
`
`Submission
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000051
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`A2. Preamble Pattern
`(Dual Antenna Single Band)
`
`• Short preamble
`– (Ant 0 : even subcarriers, Ant 1 : odd subcarriers)
`
`
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`
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`
`
`
`Submission
`
`Slide 52
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000052
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`A2. Preamble Pattern
`(Single Antenna Dual Band)
`
`• Short preamble (concatenation of single band
`preambles)
`
`
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`j
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`
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`
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`• Long preamble (concatenation of single band
`preambles)
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`
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`
`k
`
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`
`S
`58
`
`
`
`k
`
`
`
`j
`
`k
`2
`
`
`tf
`
`
`
`
`e
`
`k
`
`j
`
`k
`2
`
`
`Tt
`f
`(
`
`GI
`
`2
`
`)
`
`58
`
`eL
`
`k
`58
`
`
`
`
`
`Submission
`
`Slide 53
`
`Heejung Yu, ETRI
`
`HUAWEI EXHIBIT 1022
`HUAWEI VS. SPH
`
`000053
`
`

`

`August 2004
`
`doc.: IEEE 802.11-04/0922r0
`
`A2. Preamble Pattern
`(Dual Antenna Dual Band)
`• Short preamble (concatenation of single band preambles)
`
`
`
`
`j
`S
`S
`j
`j
`)1(
`)0(
`1,0,0,0,0,0,0,0,
`1,0,0,0,0,0,0{626
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`1,0,0{626
`
`
`
`
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`
`
`
`58,58
`58,58
`
`
`j
`j
`
`
`
`
`1,0,0,0,0,0,0,0,
`