R&S®SMW-K130 OneWeb User-Defined Signal Generation

  • Información general

Key facts

  • Fully standard-compliant OneWeb signal generation
  • Highest flexibility for customized signal design
  • Signal generation for forward link (SC-TDM) and reverse link (SC-FDMA)
  • Support of forward link and reverse link parameter settings

Brief description

The R&S®SMW-K130 option allows users to easily generate standard-compliant OneWeb signals. This option support both forward link and reverse link. Users have access to all relevant setting parameters for these transmission links.

Specifications

OneWeb signal generation for the R&S®SMW-K130 option
RF frequency user-selectable in entire frequency range
RF output level default: –30 dBm

Quick Links

Key facts

  • Fully standard-compliant OneWeb signal generation
  • Highest flexibility for customized signal design
  • Signal generation for forward link (SC-TDM) and reverse link (SC-FDMA)
  • Support of forward link and reverse link parameter settings
  • Define multicarrier scenarios for reverse link
  • Single carrier scenarios for forward link
  • Test of receivers in user terminal, ground station and satellite payload
  • Test of RF components, ground stations, satellite payloads and user terminals

Brief description

The R&S®SMW-K130 option allows users to easily generate standard-compliant OneWeb signals. This option support both forward link and reverse link. Users have access to all relevant setting parameters for these transmission links. It supports a single-carrier scenario for the forward link with an occupied bandwidth of 250 MHz. For the reverse link, users can configure single-carrier scenarios with a 20 MHz carrier. Multi-carrier scenarios for the reverse link can be generated by using carrier aggregation.

Specifications

General settings
RF Frequency range   user-selectable in entire frequency range of respective Rohde & Schwarz instrument
RF output level   default: –30 dBm,
user-selectable in entire output level range of respective Rohde & Schwarz instrument
Sequence length sequence length can be entered in frames (10 ms each); the maximum length depends on the available ARB memory options and the configured OneWeb settings, e.g. the channel bandwidth and the filter settings
Mode   predefined and user defined modes
Baseband filter standard root cosine with roll off 0.085
  other see data sheet of respective Rohde & Schwarz instrument, “baseband generator” section
Clipping setting of clipping value relative to highest peak in percent; clipping takes place prior to baseband filtering; clipping reduces the crest factor
Modes   vector |i + j q|
scalar |i|, |q|
Clipping level   1 % to 100 %
Marker   restart
Triggering   see data sheet of respective Rohde & Schwarz instrument, “I/Q baseband generator” section
Link direction   downlink, uplink
Modes   vector |i + j q|
scalar |i|, |q|
Physical layer mode downlink SC-TDM
  uplink SC-FDMA
Downlink simulation
Physical settings
Channel bandwidth   250 MHz
Sampling rate   230.4 MHz
Cell ID   0 to 255
RA-RNTI   1 to 240
Downlink reference signal structure
Reference signal power power of reference symbol 0.00 dB
P-SYNC power determines the power of the primary synchronization signal –80 dB to +10 dB, in steps of 0.001dB
Global MIMO configuration simulated cell specific antenna configuration 1
Number of configurable subframes determines the number of configurable subframes; the subframe configurations are used periodically
Note: P-SYNC and PBCH are configured globally and therefore not copied here. The use of this function ensures a valid frame configuration.
up to 40 subframes The actual range depends on the sequence length
Allocation table
Code word Up to 2 code words can be configured. 1/1,1/2, 2/2
Modulation determines modulation scheme used QPSK, 8PSK, 16QAM
Number of resource blocks (RB) defines size of selected allocation in terms of resource blocks 1 to 1152
Offset RB defines start resource block of selected allocation Note: This value is read-only if auto mode is activated for selected allocation. 0 to total number of RBs – 1
Data source determines data source of selected allocation Note: Data sources for users 0 to 3 can be configured in the Configure User panel. td> user 0, user 1, user 2, user 3, PN9, PN11, PN15, PN16, PN20, PN21 to PN 23, data list, pattern, All 0, All 1
Power determines power of selected allocation –80 dB to +10 dB in steps of 0.001 dB
Content type determines type of selected allocation PDSCH, PDCCH, PBCH
State sets state of selected allocation on, off
Enhanced settings PBCH
Scrambling state   on, off
Channel coding state enables channel coding (FEC) on, off
MIB (including SFN) activates automatic MIB generation for PBCH on, off
SFN offset sets starting system frame number encoded in MIB 0 to 1020 in steps of 4
MIB spare bits sets the MIB spare bits pattern of 16 bits
Transport block size   32
Enhanced settings PBSCH
Scrambling state   on, off
UE ID/n_RNTI user equipment identifier (n_RNTI) for selected allocation 0 to 65535
Channel coding state enables channel coding (FEC) on
Transport block size   16 to 850656
Redundancy version index   0 to 3
IR soft buffer size   31296 to 458400
Configuration of PCFICH, PDCCH
State enables PCFICH, PDCCH on, off
PCFICH power determines power of PCFICH –80 dB to +10 dB in steps of 0.001 dB
PCFICH scrambling state   on, off
PCFICH CFI   1 to 12
PDCCH power   –80 dB to +10 dB in steps of 0.001 dB
PDCCH scrambling state   on, off
PDCCH format   0 to 4
User   User1...4, P-RNTI, SI-RNTI, RA-RNTI
Number of CCEs   depends on selected PDCCH format
CCE index   0 to 599
Data source PDCCH   PN9, PN11, PN15 to PN 23, data list, pattern, All 0, All 1
DCI format   0, 1ow,1a, 2ow, 3, 3a, 3ow
Search spaces   Auto, common, UE-specific
DCI format 0 configuration
Carrier indicator field   0 to 7
Resource block assigment   0 to 8191
Modulation, coding scheme and redundancy version   0 to 31
New data indicator   on, off
TPC command for PUSCH   0 to 3
Cyclic shift for DMRS   0 to 11
CSI/CQI request   0 to 3
SRS request   0 to 1
DCI format 1OW configuration
Resource block assignment   0 to 1048575
Modulation and coding scheme   0 to 31
HARQ process number   0 to 63
New data indicator   on, off
Redundancy version   0 to 3
TPC command for PDCCH   0 to 3
DCI format 1A configuration
Mode   PDSCH, PRACH
Resource block assignment   0 to 26564
Modulation and coding scheme   0 to 31
HARQ process number   0 to 63
New data indicator   on, off
Redundancy version   0 to 3
TPC command for PDCCH   0 to 3
SRS request   0 to 1
Preamble index   0 to 63
PRACH mask index   0 to 15
DCI format 2OW configuration
Resource block assignment   0 to 524287
TPC command for PUCCH   0 to 3
HARQ process number   0 to 63
MCS for a first transmission   0 to 31
MCS for a retransmission   0 to 3
New data indicator   on, off
Redundancy version   0 to 3
DCI format 3 configuration
TPC command   pattern of 64 bits
DCI format 3a configuration
TPC command   pattern of 64 bits
DCI format 3a configuration The configure user dialog makes it possible to define and configure up to four scheduled users that can be distributed over the entire frame configuration by setting the data source of a specific allocation in the allocation table to User. Subframe allocations that are not adjacent or allocations of a different subframe can be configured to allow the use of a common data source.
Transmission mode selects the downlink transmission mode mode 1OW, mode 2OW
Scrambling state enables scrambling for all allocations belonging to the selected user on, off
Channel coding state enables channel coding (FEC) for all allocations belonging to the selected user on, off
UE ID/n_RNTI user equipment identifier (n_RNTI) for selected user 0 to 65535
Data source determines data source of user currently being configured PN9, PN11, PN15, PN16, PN20, PN21. PN 23, data list, pattern, All 0, All 1
UE category   1 to 5
Uplink simulation
General settings
Channel bandwidth determines the channel bandwidth used 20 MHz
FFT size   2048
Number of resource blocks   100
Cell ID   0 to 255
Physical cell ID group   0 to 167
Physical layer ID   0 to 2
SFN offset   0 to 2
Group hopping activates reference signal group hopping while deactivating sequence hopping on, off
Sequence hopping only selectable if group hopping is deactivated on, off
Delta sequence shift for PUSCH   0 to 29
n(1)_DMRS sets the broadcast part of the DMRS index 0 to 11
PRACH configuration   0 to 47
Restricted set   on, off
PRACH frequency offset   0 to 94
Number of RBs used for PUCCH   0 to 100
Delta shift   1 to 3
N(1)_cs if number of RBs used for PUCCH is 0 always 0
  otherwise 0 to 6, but only multiples of delta shift
N(2)_RB if N(1)_cs is 0 0 to number of RBs used for PUCCH
  otherwise 0 to number of RBs used for PUCCH - 1
SRS subframe configuration   0 to 15
SRS bandwidth configuration   0 to 7
A/N-SRS simultaneous TX enables simultaneous transmission of SRS and PUCCH on, off
Carrier aggregation settings
Activate carrier aggregation   on, off
Cell index   0, 1
Phy cell ID   0 to 503
Bandwidth bandwidth of the SCell 20 MHz
Delta f in MHz defines the frequency shift for this SCell relative to the PCell
   Setting range   depends on the respective
Rohde & Schwarz instrument
   Setting resolution   0.1 MHz
Duplexing   FDD
n(1)_DMRS sets the broadcast part of the DMRS index 0 to 11
SRS subframe configuration   0 to 15
SRS bandwidth configuration   0 to 7
Delay(ns) configures a time delay of the SCell relative to the PCell 0 to 700000
State activates/deactivates this cell on, off
Resource allocation uplink
Select user equipment >Up to 4 UEs can be configured individually and allocated to the subframes
Number of configurable subframes determines the number of configurable uplink subframes; the subframe configurations are used periodically Note: Sounding reference signals are configured globally and therefore not copied here. up to 40 subframes
Cyclic prefix determines whether a normal or extended cyclic prefix is used for a specific subframe Note: It automatically determines the number of SC-FDMA symbols per subframe normal
Allocation table
Content type UE can be set to PUSCH or PUCCH or PUACH PUSCH, PUCCH, PUACH
Modulation determines the modulation scheme used if content type is PUSCH or PUACH or the PUCCH format if content type is PUCCH QPSK, 8PSK,16QAM or format 1, 1a, 1b, 2, 2a, 2b, 3
Number of resource blocks (RB) defines size of selected allocation in terms of resource blocks 0 to 100
Offset VRB sets the virtual resource block offset; the physical resource block offset for the two slots of the corresponding subframe is set automatically depending on the frequency hopping settings 0 to 99
Power determines power of selected allocation –80 dB to +10 dB in steps of 0.01 dB
State sets state of selected allocation on, off
User equipment configuration
UE ID/n_RNTI user equipment identifier (n_RNTI) for selected user equipment 0 to 65535
Power sets power level of selected UE –80 dB to +10 dB in steps of 0.01 dB
Mode   standard, PRACH
Data source determines data source used for PUSCH or PUACH of selected UE PN9, PN11, PN15,PN16, PN20,P
Scrambling state valid for both PUSCH and PUACH on, off
Channel coding state enables channel coding (FEC) and multiplexing of control and data information valid for both PUSCH and PUACH on, off
Channel coding mode PUSCH selects whether data, control information or both is transmitted on the PUSCH UL-SCH only, UCI + UL-SCH, UCI only
Channel coding mode PUACH   PUACH UL-SCH only
DRS power offset sets power of DRS relative to power level of PUSCH/PUACH/PUCCH allocation of corresponding subframe –80 dB to +10 dB in steps of 0.001 dB
SRS state enables sending of sounding reference signals on, off
Transmit trigger type 0 SRS enables the transmission of SRS trigger type 0  
SRS power offset sets power of SRS relative to power level of corresponding UE –80 dB to +10 dB in steps of 0.001 dB
SRS cyclic shift cyclic shift used for SRS 0 to 1
Configuration index I_SRS SRS configuration index 0 to 636 for FDD
Bandwidth config. B_SRS SRS bandwidth configuration 0 to 3
Transmission comb k_TC SRS transmission comb 0 to 1
Hopping bandwidth b_hop SRS hopping bandwidth 0 to 3
Frequency domain position n_RRC SRS frequency domain position 0 to 100
Enhanced settings for PUSCH
Cyclic shift field for DRS 0 to 7
n(2)_DMRS,0 sets for layer 0 the part of the DMRS index which is part of the uplink scheduling assignment 0, 2, 3, 4, 6, 8, 9, 10
Transport block size UL-SCH   1 to 253440
Enhanced settings for PUCCH
n_PUCCH sets PUCCH index range depends on cell-specific settings
ACK/NACK pattern   0, 1
Number of CQI bits   1 to 13
Number of coded CQI bits   20
CQI pattern   0, 1
Enhanced settings for PUACH
Cyclic shift field for DRS 1 to 7
n(2)_DMRS,0 sets for layer 0 the part of the DMRS index which is part of the uplink scheduling assignment 0, 2, 3, 4, 6, 8, 9, 10
Transport block size UL-SCH   1 to 253440
Redundancy version index UL-SCH   0 to 3
Settings for PRACH
Power ramping settings    
   PRACH power ramping state   on, off
   Transition time   0.0 to 30.0 µs in steps of 0.01 µs
Preamble format set indirectly by PRACH configuration 0
RB offset sets the start resource block used for the PRACH Note: Can be set individually for each subframe that is allowed to carry a PRACH in line with the selected PRACH configuration. 0 to total number of RBs – 1
N_cs configuration Note: Can be set individually for each subframe that is allowed to carry a PRACH in line with the selected PRACH configuration. 0 to 15
Logical root sequence index Note: Can be set individually for each subframe that is allowed to carry a PRACH in line with the selected PRACH configuration 0 to 837
Sequence index (v) Note: Can be set individually for each subframe that is allowed to carry a PRACH in line with the selected PRACH configuration. 0 to 63
Δt delays the corresponding PRACH by Δt in µs Note: Can be set individually for each subframe that is allowed to carry a PRACH in line with the selected PRACH configuration. –500.00 µs to +500.00 µs in steps of 0.01 µs
State activates the PRACH for the corresponding subframe Note: Can be set individually for each subframe that is allowed to carry a PRACH in line with the selected PRACH configuration. on, off
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