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發(fā)表于 2020-07-26 10:14:28
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終端在5G(NR)網(wǎng)絡(luò)中根據(jù)其連接狀態(tài)的不同,標(biāo)識也不同;其中:RNTI(RadioNetworkTemporaryIdentifier)終端在無線網(wǎng)絡(luò)中的的動態(tài)標(biāo)識,而C-RNTI是由基站分配給UE的動態(tài)標(biāo)識,唯一標(biāo)識了一個(gè)小區(qū)空口下的UE,且只有處于連接態(tài)下的UE,C-RNTI才有效。整理kangguoying20200725 在5G網(wǎng)絡(luò)中終端與網(wǎng)絡(luò)之間的數(shù)據(jù)和信令交互由高層決定,由MAC層執(zhí)行;而多業(yè)務(wù)進(jìn)程的終端其也業(yè)務(wù)就在MAC層不同功能實(shí)體上獨(dú)立運(yùn)行, MAC實(shí)體中使用的計(jì)時(shí)器和參數(shù)全部獨(dú)立配置。每個(gè)MAC實(shí)體都有對應(yīng)的服務(wù)單元、C-RNTI、無線承載器、邏輯信道、上層和下層實(shí)體、LCGs和 HARQ 。終端在5G(NR)網(wǎng)絡(luò)中的RNTI取值和用途分別如下:整理kangguoying20200725
1. RNTI取值
根據(jù)3PGG 38.321在MAC層RNTI的取值范圍有五段,見Table 7.1-1表,整理kangguoying20200725 Table 7.1-1: RNTI values. Value (hexa-decimal)取值范圍 | RNTI類型整理kangguoying20200725 | 0000 | N/A | 0001–FFEF | RA-RNTI, Temporary C-RNTI, C-RNTI, MCS-C-RNTI, CS-RNTI, TPC-PUCCH-RNTI, TPC-PUSCH-RNTI, TPC-SRS-RNTI, INT-RNTI, SFI-RNTI, and SP-CSI-RNTI | FFF0–FFFD | Reserved整理kangguoying20200725 | FFFE | P-RNTI整理kangguoying20200725 | FFFF | SI-RNTI |
2. RNTI應(yīng)用
根據(jù)終端在不同階段的狀態(tài) ,其標(biāo)識和用途見表7.1-2整理kangguoying20200725
Table 7.1-2: RNTI usage. RNTI類型 | Usage 用途 | Transport Channel 傳輸信道 | Logical Channel 邏輯信道 | P-RNTI | Paging and System Information change notification尋呼和系統(tǒng)消息通知 | PCH整理kangguoying20200725 | PCCH整理kangguoying20200725 | SI-RNTI | Broadcast of System Information 系統(tǒng)消息廣播 | DL-SCH | BCCH | RA-RNTI | Random Access Response 隨機(jī)接入響應(yīng) | DL-SCH | N/A | Temporary C-RNTI | Contention Resolution (when no valid C-RNTI is available) 競爭接入判決 (終端未取得C-RNTI) | DL-SCH | CCCH | Temporary C-RNTI | Msg3 transmission 傳輸Msg3 | UL-SCH | CCCH, DCCH, DTCH | C-RNTI, MCS-C-RNTI | Dynamically scheduled unicast transmission 動態(tài)調(diào)度單播傳輸數(shù)據(jù) | UL-SCH | DCCH, DTCH | C-RNTI | Dynamically scheduled unicast transmission 動態(tài)調(diào)度單播傳輸數(shù)據(jù) | DL-SCH | CCCH, DCCH, DTCH | MCS-C-RNTI | Dynamically scheduled unicast transmission 動態(tài)調(diào)度單播傳輸數(shù)據(jù) | DL-SCH | DCCH, DTCH | C-RNTI | Triggering of PDCCH ordered random access 觸發(fā)PDCCH隨機(jī)接入 | N/A | N/A | CS-RNTI | Configured scheduled unicast transmission (activation, reactivation and retransmission) 配置調(diào)度單播傳輸(數(shù)據(jù)) (激活,響應(yīng)和重傳) | DL-SCH, UL-SCH | DCCH, DTCH | CS-RNTI | Configured scheduled unicast transmission (deactivation) 配置調(diào)度單播傳輸(數(shù)據(jù)) (去激活) | N/A | N/A | TPC-PUCCH-RNTI | PUCCH power control PUCCH功率控制 | N/A | N/A | TPC-PUSCH-RNTI | PUSCH power control PUSCH功率控制 | N/A | N/A | TPC-SRS-RNTI | SRS trigger and power control SRS觸發(fā)和功率控制 | N/A | N/A | INT-RNTI | Indication pre-emption in DL DL預(yù)清空指示 | N/A | N/A | SFI-RNTI | Slot Format Indication on the given cell 指定小區(qū)Slot格式指示 | N/A | N/A | SP-CSI-RNTI | Activation of Semi-persistent CSI reporting on PUSCH PUSCH半靜態(tài)CSI報(bào)告激活 | N/A | N/A | NOTE: The usage of MCS-C-RNTI is equivalent to that of C-RNTI in MAC procedures (except for the C-RNTI MAC CE). MAC層 (除C-RNTI MAC CE) MCS-C-RNTI與C-RNTI的用途相同 |
原文參考:3GPP 38.321 -f50 整理kangguoying20200725
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