Channel State Information Reference Signals (CSI-RS) Configuration

This notebook shows the CSI-RS configuration examples for all 18 rows of 38.211 Table 7.4.1.5.3-1

import numpy as np
import scipy.io

from neoradium import Carrier, PDSCH, Grid, CsiRsConfig, CsiRsSet

carrier = Carrier(startRb=0, numRbs=24, spacing=15)
bwp = carrier.bwps[0]
bwp.print()

Bandwidth Part Properties:
  Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
  Subcarrier Spacing: 15 KHz
  CP Type: normal
  bandwidth: 4320000 Hz
  symbolsPerSlot: 14
  slotsPerSubFrame: 1
  nFFT: 512

# Example for 1st row of 38.211 Table 7.4.1.5.3-1
# 1 port, 1 of 12 bits set in freqMap (only first 4 bits are valid), CDM size is 1, and density is 3.
# The CSI-RS resources are at symbol 1 and REs 3, 7, and 11.
csiRsConfig = CsiRsConfig(csiType="NZP", bwp=bwp, symbols=[1], numPorts=1, freqMap="000000001000", density=3)
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 1
      cdmSize: 1 (noCDM)
      density: 3
      RE Indexes: 3
      Symbol Indexes: 1
      Table Row: 1
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 4032
  UNASSIGNED: 3960
  CSIRS_NZP: 72

# Example for 2nd row of 38.211 Table 7.4.1.5.3-1 with density=0.5
# 1 ports, 1 of 4 bits set in freqMap, CDM size is 1, and density is 0.5.
# The CSI-RS resources are at symbol 1 and RE 3. Every other RB is skipped.
csiRsConfig = CsiRsConfig()
csiRsConfig.addCsiRs(csiType="NZP", bwp=bwp, symbols=[1], numPorts=1, freqMap="1000", density=0.5)
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 1
      cdmSize: 1 (noCDM)
      density: 0.5
      RE Indexes: 3
      Symbol Indexes: 1
      Table Row: 2
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 4032
  UNASSIGNED: 4020
  CSIRS_NZP: 12

# Example for 2nd row of 38.211 Table 7.4.1.5.3-1 with density=1 using a different symbol (3)
# 1 ports, 1 of 4 bits set in freqMap, CDM size is 1, and density is 1.
# The CSI-RS resources are at symbol 3 and RE 3.
csiRsConfig = CsiRsConfig([CsiRsSet("NZP", bwp, symbols=[3], numPorts=1, freqMap="1000", density=1)])
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 1
      cdmSize: 1 (noCDM)
      density: 1
      RE Indexes: 3
      Symbol Indexes: 3
      Table Row: 2
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 4032
  UNASSIGNED: 4008
  CSIRS_NZP: 24

# Example for 3rd row of 38.211 Table 7.4.1.5.3-1 with density=.5
# 2 ports, 1 of 6 bits set in freqMap, CDM size is 2, and density is 0.5.
# The CSI-RS resources are at symbol 3 and REs (0,1). Every other RB is skipped.
csiRsConfig = CsiRsConfig([CsiRsSet("NZP", bwp, symbols=[3], numPorts=2, freqMap="000001", density=0.5)])
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 2
      cdmSize: 2 (fd-CDM2)
      density: 0.5
      RE Indexes: 0
      Symbol Indexes: 3
      Table Row: 3
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 8064
  UNASSIGNED: 8016
  CSIRS_NZP: 48

# Example for 3rd row of 38.211 Table 7.4.1.5.3-1 with density=1 using a different symbol (6)
# 2 ports, 1 of 6 bits set in freqMap, CDM size is 2, and density is 1.
# The CSI-RS resources are at symbol 6 and REs (6,7).
csiRsConfig = CsiRsConfig([CsiRsSet("NZP", bwp, symbols=[6], numPorts=2, freqMap="001000", density=1)])
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 2
      cdmSize: 2 (fd-CDM2)
      density: 1
      RE Indexes: 6
      Symbol Indexes: 6
      Table Row: 3
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 8064
  UNASSIGNED: 7968
  CSIRS_NZP: 96

# Example for 4th row of 38.211 Table 7.4.1.5.3-1
# 4 ports, 1 of 3 bits set in freqMap, CDM size is 2, and density is 1.
# The CSI-RS resources are at symbol 6 and REs (4,5) and (6,7).
# Note that REs (4,5) are used for the first 2 ports and REs (6,7) for the next 2.
csiRsConfig = CsiRsConfig([CsiRsSet("NZP", bwp, symbols=[0], freqMap="010", numPorts=4)])
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 4
      cdmSize: 2 (fd-CDM2)
      density: 1
      RE Indexes: 4
      Symbol Indexes: 0
      Table Row: 4
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 16128
  UNASSIGNED: 15936
  CSIRS_NZP: 192

# Example for 5th row of 38.211 Table 7.4.1.5.3-1
# 4 ports, 1 of 6 bits set in freqMap, CDM size is 2, and density is 1.
# The CSI-RS resources are at symbols 6,7 and REs (2,3).
# Note that symbol 6 is used for the first 2 ports and symbol 7 for the next 2.
csiRsConfig = CsiRsConfig([CsiRsSet("NZP", bwp, symbols=[6], numPorts=4, freqMap="000010")])
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 4
      cdmSize: 2 (fd-CDM2)
      density: 1
      RE Indexes: 2
      Symbol Indexes: 6
      Table Row: 5
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 16128
  UNASSIGNED: 15936
  CSIRS_NZP: 192

# Example for 6th row of 38.211 Table 7.4.1.5.3-1
# 8 ports, 4 of 6 bits set in freqMap, CDM size is 2, and density is 1.
# The CSI-RS resources are at symbols 6 and REs (0,1), (4,5), (6,7), and (10,11).
csiRsConfig = CsiRsConfig([CsiRsSet("NZP", bwp, symbols=[6], numPorts=8, freqMap="101101")])
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 8
      cdmSize: 2 (fd-CDM2)
      density: 1
      RE Indexes: 0  4  6  10
      Symbol Indexes: 6
      Table Row: 6
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 32256
  UNASSIGNED: 31872
  CSIRS_NZP: 384

# Example for 7th row of 38.211 Table 7.4.1.5.3-1
# 8 ports, 2 of 6 bits set in freqMap, CDM size is 2, and density is 1.
# The CSI-RS resources are at symbols 6,7 and REs (2,3), and (8,9).
csiRsConfig = CsiRsConfig([CsiRsSet("NZP", bwp, symbols=[6], numPorts=8, freqMap="010010")])
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 8
      cdmSize: 2 (fd-CDM2)
      density: 1
      RE Indexes: 2  8
      Symbol Indexes: 6
      Table Row: 7
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 32256
  UNASSIGNED: 31872
  CSIRS_NZP: 384

# Example for 8th row of 38.211 Table 7.4.1.5.3-1
# 8 ports, 2 of 6 bits set in freqMap, CDM size is 4, and density is 1.
# The CSI-RS resources are at symbols (6,7) and REs (2,3), and (8,9).
csiRsConfig = CsiRsConfig([CsiRsSet("NZP", bwp, symbols=[6], numPorts=8, freqMap="010010", cdmSize=4)])
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 8
      cdmSize: 4 (cdm4-FD2-TD2)
      density: 1
      RE Indexes: 2  8
      Symbol Indexes: 6
      Table Row: 8
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 32256
  UNASSIGNED: 31488
  CSIRS_NZP: 768

# Example for 9th row of 38.211 Table 7.4.1.5.3-1
# 12 ports, all of 6 bits set in freqMap, CDM size is 2, and density is 1.
# The CSI-RS resources are at symbols 6 and all REs.
csiRsConfig = CsiRsConfig([CsiRsSet("NZP", bwp, symbols=[6], numPorts=12, cdmSize=2)])
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 12
      cdmSize: 2 (fd-CDM2)
      density: 1
      RE Indexes: 0  2  4  6  8  10
      Symbol Indexes: 6
      Table Row: 9
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 48384
  UNASSIGNED: 47808
  CSIRS_NZP: 576

# Example for 10th row of 38.211 Table 7.4.1.5.3-1
# 12 ports, 3 of 6 bits set in freqMap, CDM size is 4, and density is 1.
# The CSI-RS resources are at symbols (6,7) and REs (2,3), (6,7), and (10,11).
csiRsConfig = CsiRsConfig([CsiRsSet("NZP", bwp, symbols=[6], numPorts=12, freqMap="101010", cdmSize=4)])
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 12
      cdmSize: 4 (cdm4-FD2-TD2)
      density: 1
      RE Indexes: 2  6  10
      Symbol Indexes: 6
      Table Row: 10
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 48384
  UNASSIGNED: 47232
  CSIRS_NZP: 1152

# Example for 11th row of 38.211 Table 7.4.1.5.3-1
# 16 ports, 4 of 6 bits set in freqMap, CDM size is 2, and density is 1.
# The CSI-RS resources are at symbols 6,7 and REs (0,1), (2,3), (8,9) and (10,11).
# Note that this configuration also allows density=.5 which would cause every other
# RB to be skipped for the CSR-RS allocation. (default density is 1)
csiRsConfig = CsiRsConfig([CsiRsSet("NZP", bwp, symbols=[6], numPorts=16, freqMap="110011", cdmSize=2)])
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 16
      cdmSize: 2 (fd-CDM2)
      density: 1
      RE Indexes: 0  2  8  10
      Symbol Indexes: 6
      Table Row: 11
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 64512
  UNASSIGNED: 63744
  CSIRS_NZP: 768

# Example for 12th row of 38.211 Table 7.4.1.5.3-1
# 16 ports, 4 of 6 bits set in freqMap, CDM size is 4, and density is 1.
# The CSI-RS resources are at symbols (6,7) and REs (0,1), (2,3), (8,9) and (10,11).
# Note that this configuration also allows density=.5 which would cause every other
# RB to be skipped for the CSR-RS allocation. (default density is 1)
csiRsConfig = CsiRsConfig([CsiRsSet("NZP", bwp, symbols=[6], numPorts=16, freqMap="110011", cdmSize=4)])
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 16
      cdmSize: 4 (cdm4-FD2-TD2)
      density: 1
      RE Indexes: 0  2  8  10
      Symbol Indexes: 6
      Table Row: 12
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 64512
  UNASSIGNED: 62976
  CSIRS_NZP: 1536

# Example for 13th row of 38.211 Table 7.4.1.5.3-1
# 24 ports, 3 of 6 bits set in freqMap, CDM size is 2, and density is 1.
# The CSI-RS resources are at symbols 4, 5, 8, and 9 and REs (2,3), (6,7) and (10,11).
# Note that this configuration also allows density=.5 which would cause every other
# RB to be skipped for the CSR-RS allocation. (default density is 1)
csiRsConfig = CsiRsConfig([CsiRsSet("NZP", bwp, symbols=[4,8], numPorts=24, freqMap="101010", cdmSize=2)])
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 24
      cdmSize: 2 (fd-CDM2)
      density: 1
      RE Indexes: 2  6  10
      Symbol Indexes: 4  8
      Table Row: 13
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 96768
  UNASSIGNED: 95616
  CSIRS_NZP: 1152

# Example for 14th row of 38.211 Table 7.4.1.5.3-1
# 24 ports, 3 of 6 bits set in freqMap, CDM size is 4, and density is 1.
# The CSI-RS resources are at symbols (4,5), (8,9) and REs (2,3), (6,7) and (10,11).
# Note that this configuration also allows density=.5 which would cause every other
# RB to be skipped for the CSR-RS allocation. (default density is 1)
csiRsConfig = CsiRsConfig([CsiRsSet("NZP", bwp, symbols=[4,8], numPorts=24, freqMap="101010", cdmSize=4)])
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 24
      cdmSize: 4 (cdm4-FD2-TD2)
      density: 1
      RE Indexes: 2  6  10
      Symbol Indexes: 4  8
      Table Row: 14
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 96768
  UNASSIGNED: 94464
  CSIRS_NZP: 2304

# Example for 15th row of 38.211 Table 7.4.1.5.3-1
# 24 ports, 3 of 6 bits set in freqMap, CDM size is 8, and density is 1.
# The CSI-RS resources are at symbols (5,6,7,8) and REs (2,3), (6,7) and (10,11).
# Note that this configuration also allows density=.5 which would cause every other
# RB to be skipped for the CSR-RS allocation. (default density is 1)
csiRsConfig = CsiRsConfig([CsiRsSet("NZP", bwp, symbols=[5], numPorts=24, freqMap="101010", cdmSize=8)])
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 24
      cdmSize: 8 (cdm8-FD2-TD4)
      density: 1
      RE Indexes: 2  6  10
      Symbol Indexes: 5
      Table Row: 15
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 96768
  UNASSIGNED: 92160
  CSIRS_NZP: 4608

# Example for 16th row of 38.211 Table 7.4.1.5.3-1
# 32 ports, 4 of 6 bits set in freqMap, CDM size is 2, and density is 1.
# The CSI-RS resources are at symbols 4, 5, 8, and 9 and REs (0,1),(2,3),(8,9) and (10,11).
# Note that this configuration also allows density=.5 which would cause every other
# RB to be skipped for the CSR-RS allocation. (default density is 1)
csiRsConfig = CsiRsConfig([CsiRsSet("NZP", bwp, symbols=[4,8], numPorts=32, freqMap="110011", cdmSize=2)])
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 32
      cdmSize: 2 (fd-CDM2)
      density: 1
      RE Indexes: 0  2  8  10
      Symbol Indexes: 4  8
      Table Row: 16
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 129024
  UNASSIGNED: 127488
  CSIRS_NZP: 1536

# Example for 17th row of 38.211 Table 7.4.1.5.3-1
# 32 ports, 4 of 6 bits set in freqMap, CDM size is 4, and density is 1.
# The CSI-RS resources are at symbols (2,3), (8,9) and REs (0,1),(2,3),(8,9) and (10,11).
# Note that this configuration also allows density=.5 which would cause every other
# RB to be skipped for the CSR-RS allocation. (default density is 1)
csiRsConfig = CsiRsConfig([CsiRsSet("NZP", bwp, symbols=[2,8], numPorts=32, freqMap="110011", cdmSize=4)])
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 32
      cdmSize: 4 (cdm4-FD2-TD2)
      density: 1
      RE Indexes: 0  2  8  10
      Symbol Indexes: 2  8
      Table Row: 17
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 129024
  UNASSIGNED: 125952
  CSIRS_NZP: 3072

# Example for 18th row of 38.211 Table 7.4.1.5.3-1
# 32 ports, 4 of 6 bits set in freqMap, CDM size is 8, and density is 1.
# The CSI-RS resources are at symbols (6,7,8,9) and REs (0,1),(2,3),(8,9) and (10,11).
# Note that this configuration also allows density=.5 which would cause every other
# RB to be skipped for the CSR-RS allocation. (default density is 1)
csiRsConfig = CsiRsConfig([CsiRsSet("NZP", bwp, symbols=[6], numPorts=32, freqMap="110011", cdmSize=8)])
csiRsConfig.print()
grid = bwp.createGrid(csiRsConfig.numPorts)
csiRsConfig.populateGrid(grid)
print("Grid Stats:")
stats = grid.getStats()
for key, value in stats.items(): print("  %s: %d"%(key, value))
grid.drawMap(ports=range(csiRsConfig.numPorts), reRange=(0,36))

CSI-RS Configuration: (1 Resource Sets)
  CSI-RS Resource Set:(1 NZP Resources)
    Resource Set ID: 0
    Resource Type: periodic
    Resource Blocks: 24 RBs starting at 0
    Slot Period: 4
    Bandwidth Part:
      Resource Blocks: 24 RBs starting at 0 (288 subcarriers)
      Subcarrier Spacing: 15 KHz
      CP Type: normal
      bandwidth: 4320000 Hz
      symbolsPerSlot: 14
      slotsPerSubFrame: 1
      nFFT: 512
    CSI-RS:
      resourceId: 0
      numPorts: 32
      cdmSize: 8 (cdm8-FD2-TD4)
      density: 1
      RE Indexes: 0  2  8  10
      Symbol Indexes: 6
      Table Row: 18
      Slot Offset: 0
      Power: 0 db
      scramblingID: 0

Grid Stats:
  GridSize: 129024
  UNASSIGNED: 122880
  CSIRS_NZP: 6144