4G(LTE)網絡中終端分配到的資源(RB)，通過對DCI中RIV(Resource Indication Value)的計算獲得 ；其中包括：終端分配到的RB數量和起始RB；kangguoying20201217

1.DCI中的RIVkangguoying20201217

2.RIV計算方法

     根據TS36.213 - 7.1.6.3上圖中兩種DCI的RIV計算方法分別如下：kangguoying20201217

2.1 PDCCH DCI format 1A, 1B or 1D,  for EPDCCH DCI format 1A, 1B, or 1Dkangguoying20201217

2.2 PDCCH DCI format 1Ckangguoying20201217

3.計算RIV批處理kangguoying20201217

 % Following is from lte_dci_1a_unpack.m file in /octave folderkangguoying20201217

        for(n=1:N_rb_dl)kangguoying20201217

            for(m=0:(N_rb_dl-n))

                if((n-1) <= floor(N_rb_dl/2))

                    if(RIV == N_rb_dl*(n-1)+m)

                        L_crb    = n;

                        RB_start = m;

                    endif

                else  kangguoying20201217

                    if(RIV == N_rb_dl*(N_rb_dl-n+1)+(N_rb_dl-1-m))

                        L_crb    = n;kangguoying20201217

                        RB_start = m;

                    endif

                endif

            endfor

        endfor

原文來自：[url]www.sharetechnote.com[/url]
整理：kangguoying20201217
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