Downlink Assignment Index (TDD)

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Downlink Assignment Index (TDD)

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Hi,

What is the Significance of 2 bit Downlink Assignment Index used in all DCI formats(TDD).

 

Regards,

Saikiran V

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  • See section 7.3 of 36.213. Tables 7.3-X identifies the number of TDD subframes with PDSCH transmissions.

  • informing the terminal about the number of downlink trans-missions for which a single hybrid-ARQ acknowledgement should be generated according to TDD rule

  • Hi,

    thanks for the reply.

    What information will be known by DAI in UL and DL?

    Could someone elaborate a bit the differnce of DAI in DCI0 and DCI 1\1A\2\2A?

    Regards,

    Saikiran V

  • The DL assignment carries a Downlink Assignment Index (DAI) indicating how many assignments the UE should have received so far within the current bundling window.

    More here :

    communicationanddsp.blogspot.in/.../dai-downlink-assignment-index-in-lte.html

  • why eNodeB should downlink assignment index in DCI 0 ?