xev-do基礎(chǔ)介紹朗訊(編輯修改稿)
2025-02-15 08:18 本頁面
【文章內(nèi)容簡介】 tion (Factor=DRCLockLength) DRC Lock 7 前向鏈路幀 /時(shí)隙結(jié)構(gòu) Data 400 chips RPC/DRC Lock RAB RPC/DRC Lock RAB Active Slot 64 RPC/DRC Lock RAB Pilot 96 64 RPC/DRC Lock RAB Data 400 chips Data 400 chips 64 Pilot 96 chips 64 Data 400 chips chips 1024 chips = half slot 1024 chips = half slot System time 1 Slot 8 Slots 1 slot = ms 1/2 frame = ms Frame = ms 16 Slots 5 0 2 3 1 5 4 6 7 5 12 14 15 13 5 8 10 11 9 4 Slots 2 Slots 4 slot = ms 2 slot = ms Idle Slot 64 RPC/DRC Lock RAB Pilot 96 64 RPC/DRC Lock RAB chips 64 RPC/DRC Lock RAB Pilot 96 64 RPC/DRC Lock RAB chips 8 快速最好扇區(qū)選擇技術(shù) C/I C/I 9 快速速率控制與優(yōu)化調(diào)度算法 C/I C/I C/I 307k 38k 614k 307k 614k 38k Time Power 10 基于有效輸出功率的吞吐能量最大化技術(shù) 11 前向鏈路物理層參數(shù) Code Rate Modulation Type Slots Encoder Packet Duration (ms) Bits per Encoder Packet Data Rates (kbps) 1/5 QPSK 16 1024 1/5 QPSK 8 1024 1/5 QPSK 4 1024 1/5 QPSK 2 1024 1/5 QPSK 1 1024 1/3 QPSK 4 2048 1/3 QPSK 2 2048 1/3 QPSK 1 2048 1/3 8PSK 2 3072 1/3 8PSK 1 3072 1/3 16QAM 2 4096 1/3 16QAM 1 4096 12 反向鏈路物理層參數(shù) Code Rate Modulation Type Slots Encoder Packet Duration (ms) Bits per Encoder Packet Data Rates (kbps) 1/4 BPSK 16 256 1/4 BPSK 16 512 1/4 BPSK 16 1024 1/4 BPSK 16 2048 1/2 BPSK 16 4096 13 物理層分組數(shù)據(jù)包傳輸特性 ?前向鏈路 ?分組數(shù)據(jù)包傳輸持續(xù)時(shí)間變化為 1 16個(gè)時(shí)隙 ?AT 地址在分組包前綴中指定 ?AT通過 ACK信道響應(yīng)已成功地接收到數(shù)據(jù)包 ?反向鏈路 ?傳輸持續(xù)時(shí)間 16 個(gè)時(shí)隙 ( ) ?AT端發(fā)送地址隱含在用
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