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A question related to AIF2-CPRI Link

arda demiray
Prodigy 150 points

Hi,

I have a question about AIF2-CPRI link. Is it possible to send the AxCs with diffrent bandwith in same CPRI link simultaneously ? For example: Sending 1x20MHz, 3x10MHz antenna carriers in same CPRI link

Regards,

Arda

  • 0
    TI__Expert 4740 points

    Hi

    Unfortunately, AIF2 doesn't support multi radio standards in the same link for CPRI.

    you may have to use multiple links for each Radio standards.

     

    Regard,

    Albert 

  • 0 in reply to Albert Bae
    Prodigy 150 points

    Hi Albert,

    For the the radio standard LTE, Is it possible to send the AxCs with diffrent bandwith in same CPRI link?

    Regards,

    Arda

  • 0 in reply to arda demiray
    TI__Expert 4740 points

    I already answered. NO

  • 0 in reply to Albert Bae
    TI__Expert 4740 points

    Hi,

    I think I gave you partially wrong answer. my previous NO answer is only applied Turbo Nyquist PG1.X version chip.

    from PG 2.0 silicon, we can support multiple LTE BW in one link.

    for example, if you want to support LTE20 one channel(channel 0) and LTE10 two channels (channel 1 and 2) on 4x link, you can set both ingress and egress DBM X to 16 (set 15) and assign 8 slots for LTE20 and 4 slots for two LTE10 channels.

    On egress, this can be done by PE Channel Rule LUT registers. chanindex[0 ~15] field will be set to {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2} ==> you can change this matrix if required

    On ingress, this can be done by PD CPRI ID LUT registers. cpri_dmachan[0 ~ 15] field will be set to {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2}

    and you need to configure two sets of PD or PE frame terminal counter registers. one for LTE20 and the other one for LTE10 and should map one of these counters to each DMA channels (channel 0 ~ 2)

    Hope this could help to you.

    Albert