【正文】
Core Network GPRS GSM/UMTS Core Network WCDMA Radio Access /EDGE 移動(dòng)性管理 Top right corner for fieldmark, customer or partner logotypes. See Best practice for example. Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 25 20 pt 直接重試到 GSM WCDMA GSM Admission Control Top right corner for fieldmark, customer or partner logotypes. See Best practice for example. Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 25 20 pt 直接重試到 GSM - 增加的價(jià)值 ? 減小話音的擁塞率 ? 當(dāng) WCDMA網(wǎng)絡(luò)容量不足時(shí)、確保話務(wù)平穩(wěn)轉(zhuǎn)移到 GSM ? 由于集群效應(yīng)使得容量增加舉例 : WCDMA 35 個(gè)話音用戶和 GSM 45 個(gè)話音用戶 保持同樣的呼損率 (2%), 總網(wǎng)絡(luò)容量增加 11% Radio Network Top right corner for fieldmark, customer or partner logotypes. See Best practice for example. Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 25 20 pt 主要內(nèi)容 ? 無線網(wǎng)絡(luò)功能 – 無線資源管理 ( Radio Resource Management) – 移動(dòng)性管理 ( Mobility Management) – 其它無線網(wǎng)絡(luò)功能 ? 后續(xù)推出的新功能 ? 總結(jié) Top right corner for fieldmark, customer or partner logotypes. See Best practice for example. Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 25 20 pt 包括: ? 透明消息傳送( Transparent message transfer) ? 系統(tǒng)消息發(fā)布( System Information distribution) ? 完整性保護(hù)和加密模式控制( Integrity protection and ciphering mode control) ? 緊急呼叫( Emergency call) ? 共享網(wǎng)絡(luò)支持( Shared Network Support) ? 基于 SAI( 小區(qū))的定位( SAI based (Cell) positioning) ? 數(shù)據(jù)量報(bào)告( Data volume report) ? 統(tǒng)計(jì)可觀察性( Statistical observability) Top right corner for fieldmark, customer or partner logotypes. See Best practice for example. Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 25 20 pt 主要內(nèi)容 ? 無線網(wǎng)絡(luò)功能 – 無線資源管理 ( Radio Resource Management) – 移動(dòng)性管理 ( Mobility Management) – 其它無線網(wǎng)絡(luò)功能 ? 后續(xù)推出的新功能 ? 總結(jié) Top right corner for fieldmark, customer or partner logotypes. See Best practice for example. Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 25 20 pt 包 括 ? HSDPA ? 主動(dòng)排隊(duì)管理( Active Queue Management) ? 自適應(yīng)多速率控制( Adaptive Multi Rate (AMR) rate control) ? 寬帶 AMR( Wideband AMR) ? 開環(huán)發(fā)射分集( Open loop transmit diversity) ? 閉環(huán)發(fā)射分集( Closed loop transmit diversity) ? 分層小區(qū)結(jié)構(gòu)( Hierarchical Cell Structure (HCS)) 后續(xù)功能 Top right corner for fieldmark, customer or partner logotypes. See Best practice for example. Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 25 20 pt RAN Interactive HSDPA RAB PS Core Network ? Best effort Interactive RAB using HSDPA – 下行最大速率 Mbps, 上行 64 kbps – 下行最大速率 Mbps, 上行 384kbps – 提供基于 HSDPA高速率的交互式數(shù)據(jù)業(yè)務(wù) – 用戶享受到高速率的同時(shí),往返延遲也大大降低 – HSDPA提供更大的分組數(shù)據(jù)業(yè)務(wù)的容量 Top right corner for fieldmark, customer or partner logotypes. See Best practice for example. Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 25 20 pt HSDPA基本工作原理 ? 高階調(diào)制 2 ms ? 很短 TTI (2 ms)( 傳輸間隙) ? 快速自動(dòng)重傳 +軟合并 ? 快速根據(jù)無線信道做調(diào)度 ? 快速鏈路適配 ? 共享信道傳輸 Top right corner for fieldmark, customer or partner logotypes. See Best practice for example. Slide title 40 pt Slide subtitle 24 pt Text 24 pt Bullets level 25 20 pt HSDPA 接入控制 - 更先進(jìn)的無線資源管理 t PCCH Pnom DCH + CCH Rapid variations Padm Pcong Admission Congestion Control ? Service differentiated Congestion Control ? Soft congestion: R99 Packet users down switched in rate ? R99 Packet users moved to Common channels ? HSDPA released Voice/video/streaming users released ? Unique flexibility through a number of Operator parameters Fast Congestion Control ?Fulfills regulatory Spur. Req. ?No MCPA shutdown (Lost cell) ?Reaction time ms ?Enables aggressive ? Adm. Cong. Control ? HSDSCH power allocation Fast limitation。 :59:5910:59Feb2325Feb23 ? 1故人江海別,幾度隔山川。 。 , February 25, 2023 ? 很多事情努力了未必有結(jié)果,但是不努力卻什么改變也沒有。 :59:5910:59:59February 25, 2023 ? 1意志堅(jiān)強(qiáng)的人能把世界放在手中像泥塊一樣任意揉捏。 2023年 2月 25日星期六 10時(shí) 59分 59秒 10:59:5925 February 2023 ? 1空山新雨后,天氣晚來秋。 :59:5910:59Feb2325Feb23 ? 1越是無能的人,越喜歡挑剔別人的錯(cuò)兒。 2023年 2月 25日星期六 上午 10時(shí) 59分 59秒 10:59: ? 1最具挑戰(zhàn)性的挑戰(zhàn)莫過于提