5G-频点频率换算
2020-12-30 21:02
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换算原理
项目展示
FREF =FREF-Offs+ΔFGlobal(NREF –NREF-Offs)
NRB查询表：
GSCN计算公式：
各频段GSCN范围：
项目展示
通过中心频点计算频率：
#5G各种带宽在不同Scs下的RB数
scs_15={'5':25,'10':52,'15':79,'20':106,'25':133,'30':160,'40':216,'50':270}
scs_30={'5':11,'10':24,'15':38,'20':51,'25':65,'30':78,'40':106,'50':133,'60':162
,'70':189,'80':217,'90':245,'100':273}
scs_60={'10':11,'15':18,'20':24,'25':31,'30':38,'40':51,'50':65,'60':79
,'70':93,'80':107,'90':121,'100':135
,'200':264}
scs_120={'50':32,'100':66,'200':132,'400':264}#---------------------GSCN输出----------------------
defgscn_print(Fref):
ifFref<3000andFref>0:
n=int((Fref-0.15)/1.2)
return3*n
ifFref<24250andFref>0:
n=int((Fref-3000)/1.44)
return7499+n
ifFref<100000andFref>0:
n=int((Fref-24250.08)/17.28)
return22256+n
return'NA'
#--------------------RB数据输出---------------------
defrb_print(scs,bandwidth):
ifscs==120:
returnscs_120[bandwidth]
ifscs==60:
returnscs_60[bandwidth]
ifscs==30:
returnscs_30[bandwidth]
returnscs_15[bandwidth]
#--------------------SSB频点输出--------------------
defssb_print(Rb_number,Nref,scs,F_global):
ifRb_number%2==0:
returnNref
else:
returnNref-(6*scs)/(F_global*10**3)
#-----------------中心频点步长输出------------------
defstep_print(scs,band):
ifband=='Band-41':
ifscs==30:
return6
else:
return3
ifband=='Band-77'orband=='Band-78'orband=='Band-79':
ifscs==30:
return2
else:
return1
return20
#---------------------Band输出----------------------
defBand_print(Nref):
ifNref>402000andNref<405000:
return'Band-34'
ifNref>514000andNref<524000:
return'Band-38'
ifNref>376000andNref<384000:
return'Band-39'
ifNref>460000andNref<480000:
return'Band-40'
ifNref>499200andNref<537999:
return'Band-41'
ifNref>285400andNref<286400:
return'Band-51'
ifNref>42200andNref<440000:
return'Band-66'
ifNref>399000andNref<404000:
return'Band-70'
ifNref>123400andNref<130400:
return'Band-71'
ifNref>286400andNref<303400:
return'Band-75'
ifNref>285400andNref<286400:
return'Band-76'
ifNref>620000andNref<653333:
return'Band-78'
ifNref>620000andNref<680000:
return'Band-77'
ifNref>693334andNref<733333:
return'Band-79'
ifNref>422000andNref<434000:
return'Band-1'
ifNref>386000andNref<398000:
return'Band-2'
ifNref>361000andNref<376000:
return'Band-3'
ifNref>173800andNref<178800:
return'Band-5'
ifNref>524000andNref<538000:
return'Band-7'
ifNref>185000andNref<192000:
return'Band-8'
ifNref>145800andNref<149200:
return'Band-12'
ifNref>158200andNref<164200:
return'Band-20'
ifNref>386000andNref<399000:
return'Band-25'
ifNref>151600andNref<160600:
return'Band-28'
return'NA'
#---------------------频率转频点----------------------
defNref_point():
#判断用户输入的中心频率是否合法
whileTrue:
Fref=input('\n请输入中心频率:')try:
ifint(float(Fref))>0:
break
else:
print('不合规请重新输入')except:
print('不合规请重新输入')#判断用户输入的小区带宽是否合法
whileTrue:
bandwidth=input('请输入小区带宽(单位MHz):')ifbandwidth.isdigit():
ifint(bandwidth)in[5,15,20,25,30,40,50,60,70,80,90,100,200,400]:
break
else:
print('不合规请重新输入')else:
print('不合规请重新输入')#判断用户输入的子载波间隔是否合法
whileTrue:
Scs=input('请输入子载波间隔(单位KHz):')ifScs.isdigit():
ifint(bandwidth)<51andint(Scs)==15:
break
ifint(bandwidth)<101andint(Scs)==30:
break
ifint(bandwidth)>11andint(bandwidth)<101andint(Scs)==60:
break
ifint(bandwidth)>51andint(bandwidth)<101andint(Scs)==120:
break
else:
print('不合规请重新输入')else:
print('不合规请重新输入')ifint(Fref)<100000:
F_global=60*10**-3
Fref_offs=24250
Nref_offs=2016667
ifint(Fref)<24250:
F_global=15*10**-3
Fref_offs=3000
Nref_offs=600000
ifint(Fref)<3000:
F_global=5*10**-3
Fref_offs=0
Nref_offs=0
Nref=(int(Fref)-Fref_offs)/F_global+Nref_offs #中心频点计算
print(Nref)
Band=Band_print(Nref)#频带获取
print(Band)
Step_size=int(step_print(int(Scs),Band)) #频点栅格步长获取
print(Step_size)
#中心频点修正
whileint(Nref)%Step_size!=0:
Nref+=1
Rb_number=rb_print(int(Scs),str(int(bandwidth))) #NRB数据获取
SSB_ref=ssb_print(Rb_number,Nref,int(Scs),F_global) #SSB频点获取
Gscn=gscn_print(int(Fref)) #GSCN获取
print('\n计算结果如下：') print(' 中心频率：',Fref,'MHz') print(' 小区带宽：',bandwidth,'MHz') print(' 载波间隔：',Scs,'KHz') print(' NRB个数：',Rb_number) print(' 频点栅格：',int(F_global*10**3),'KHz') print(' 中心频点:',int(Nref)) print(' SSB频点:',int(SSB_ref)) print(' GSCN频点:',Gscn) print(' 小区频带:',Band) print(' 频点步长:',Step_size)#---------------------频点转频率----------------------
defFref_point():
#判断用户输入的中心频点是否合法
whileTrue:
Nref=input('\n请输入中心频点:')ifNref.isdigit():
ifint(Nref)>0:
break
else:
print('不合规请重新输入')else:
print('不合规请重新输入')#判断用户输入的小区带宽是否合法
whileTrue:
bandwidth=input('请输入小区带宽(单位MHz):')ifbandwidth.isdigit():
ifint(bandwidth)in[5,15,20,25,30,40,50,60,70,80,90,100,200,400]:
break
else:
print('不合规请重新输入')else:
print('不合规请重新输入')#判断用户输入的子载波间隔是否合法
whileTrue:
Scs=input('请输入子载波间隔(单位KHz):')ifScs.isdigit():
ifint(bandwidth)<51andint(Scs)==15:
break
ifint(bandwidth)<101andint(Scs)==30:
break
ifint(bandwidth)>11andint(bandwidth)<101andint(Scs)==60:
break
ifint(bandwidth)>51andint(bandwidth)<101andint(Scs)==120:
break
else:
print('不合规请重新输入')else:
print('不合规请重新输入')ifint(Nref)<3279167:
F_global=60*10**-3
Fref_offs=24250
Nref_offs=2016667
ifint(Nref)<2016666:
F_global=15*10**-3
Fref_offs=3000
Nref_offs=600000
ifint(Nref)<599999:
F_global=5*10**-3
Fref_offs=0
Nref_offs=0
Band=Band_print(int(Nref))#频带获取
Step_size=int(step_print(int(Scs),Band)) #频点栅格步长获取
Fref=int(Fref_offs+F_global*(int(Nref)-Nref_offs)) #中心频率计算
Rb_number=rb_print(int(Scs),str(int(bandwidth))) #NRB数据获取
SSB_ref=ssb_print(Rb_number,int(Nref),int(Scs),F_global) #SSB频点获取
Gscn=gscn_print(int(Fref)) #GSCN获取
print('\n计算结果如下：') print(' 中心频率：',Fref,'MHz') print(' 小区带宽：',bandwidth,'MHz') print(' 载波间隔：',Scs,'KHz') print(' NRB个数：',Rb_number) print(' 频点栅格：',int(F_global*10**3),'KHz') print(' 中心频点:',int(Nref)) print(' SSB频点:',int(SSB_ref)) print(' GSCN频点:',Gscn) print(' 小区频带:',Band) print(' 频点步长:',Step_size)#-----------------------程序入口------------------------
if__name__=='__main__':
print('5G子载波间隔与小区带宽对应规则：') print(' 15KHz间隔:5M10M15M20M25M30M40M50M') print(' 30KHz间隔:5M10M15M20M25M30M40M50M60M70M80M90M100M') print(' 60KHz间隔:10M15M20M25M30M40M50M60M70M80M90M100M200M') print(' 120KHz间隔:50M100M200M400M')whileTrue:
sele=input('\n请选择计算方式：1、频率转频点；2、频点转频率;3、退出程序:')ifsele.isdigit():
ifint(sele)==3:
print('\n欢迎再次使用！')exit(0)
ifint(sele)==1:
Nref_point()
continue
ifint(sele)==2:
Fref_point()
continue
else:
print('输入有误请重新输入')else:
print('输入有误请重新输入'
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