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BCP support for PBCH, PCFICH and PHICH in LTE

cem tuhta
Prodigy 110 points

Hi all,

In BCP User Guide there are use case examples for PDSCH and PDCCH flows in LTE. We dont need to do anything on DSP core for these bit rate operations. 

But what about PBCH, PCFICH and PHICH flows? It is not mentioned in guide but i guess these flows are not supported but i am not sure. Can anybody answer?

I wonder if i need to do all bit-rate processing operations on DSP core or BCP can support some part of them too. For example; can BCP CRC submodule do CRC attachment of BCH bits or QPSK Modulation of CFI bits.

Thanks,

Cem

  • 0
    TI__Expert 4370 points

    Hello, Cem

    For PBCH, BCP supports crc, encoder, rate matching, and modulation.

    For PCFICH, BCP supports modulation.

    For PHICH, BCP also supports modulation.

    Regards,
    Xiaozhou Huang

  • 0 in reply to Xiaozhou Huang
    Prodigy 110 points

    Hi all,

    In BCP Example codes only two types of channel are defined for Downlink as shown below. And submodule header config codes contains some if, else cases about channel types. As it is said that BCP also supports PBCH, PHICH, PCFICH in downlink, i wonder if they should be configured same as type LTE_PDCCH or LTE_PDSCH or should be defined as a new type?

    /* LTE Channel types */
    #define LTE_PDSCH           (0)
    #define LTE_PDCCH           (1)
    #define LTE_PUSCH_SIC  (2)
    #define LTE_PUSCH           (3)
    #define LTE_PUCCH           (4)
    #define LTE_PDCCHM        (5)
    #define LTE_PUSCH_SIC_HARD (6)

    Regards,

    Cem

  • 0 in reply to cem tuhta
    TI__Expert 4370 points

    hello, Cem

    those are examples. in different cases, it shows how to configure the BCP for these channels. for other channels, you could use them as reference. for LTE downlink, you could use LTE_PDSCH as reference to configure BCP for other channels.

    thanks and regards,

    Xiaozhou Huang