摘要：
圍繞如何改善目前HSDPA數(shù)據(jù)業(yè)務(wù)低速率的問(wèn)題，以解決日益增長(zhǎng)的數(shù)據(jù)傳輸速率需求與網(wǎng)絡(luò)負(fù)荷間的矛盾。研究分析了無(wú)線環(huán)境、無(wú)線資源、傳輸帶寬、高速共享控制信道受限以及MAC-hs重傳等影響HSDPA速率的各種因素，從根本上解決現(xiàn)網(wǎng)HSDPA低速率的能力瓶頸，實(shí)現(xiàn)靈活高效的數(shù)據(jù)傳輸，為WCDMA網(wǎng)絡(luò)優(yōu)化提供參考。%It focuses on improving the issues on HSDPA data service low rate to solve the contradiction of increasing data transmission rate demand and network load. It analyzes the factors which effect HSDPA rate,including wireless environment,wireless re-source,transmission bandwidth,limited channel of high-speed shared control and MAC-hs retransmission. It is essential to solve the current low rate of capacity bottleneck in HSDPA network,and perform a flexible and reliable data transmission to provide reference for WCDMA network optimization.
摘要：
本文針對(duì)WCDMA數(shù)據(jù)業(yè)務(wù)的長(zhǎng)春部分區(qū)域KPI指標(biāo)較差、下載速率低等問(wèn)題，對(duì)WCDMA網(wǎng)絡(luò)的數(shù)據(jù)業(yè)務(wù)定期功能和性能的核查，及時(shí)分析出數(shù)據(jù)業(yè)務(wù)功能的使用情況，對(duì)各項(xiàng)性能、參數(shù)和資源配置進(jìn)行了解，確保用戶使用數(shù)據(jù)業(yè)務(wù)時(shí)功能和業(yè)務(wù)性能的提升。本文對(duì)中國(guó)聯(lián)通WCDMA網(wǎng)絡(luò)數(shù)據(jù)業(yè)務(wù)的KPI指標(biāo)進(jìn)行優(yōu)化，對(duì)影響WCDMA網(wǎng)絡(luò)數(shù)據(jù)業(yè)務(wù)的各種原因進(jìn)行分析，采取相關(guān)措施來(lái)解決問(wèn)題，提升了WCDMA網(wǎng)絡(luò)數(shù)據(jù)業(yè)務(wù)。%This paper mainly study on the problem of low download speed in some area in Changchun. It could analyse the data business functions and the condition of the parameters and resource configuration by examining the function and performance of data business on WCDMA network regularly through enhancing the performance of the optimized data services and the user perception. And it could ensure that the data business functions and performance were normal when the user used the data business. The key technology of the China Unicom's WCDMA network data services were comprehensive introduced in this paper. The reasons which influenced on the WCDMA network data services were anal-ysed. The optimization ideas on the WCDMA network data business were summarized. Some measures were taken to solve these problems.
摘要：
由于存在碼域上的干擾，高速下行分組接入（ HSDPA）下異構(gòu)網(wǎng)中節(jié)點(diǎn)邊緣用戶性能受到一定影響，尤其在軟小區(qū)場(chǎng)景中，同一軟小區(qū)內(nèi)部各節(jié)點(diǎn)間擾碼相同，邊緣用戶會(huì)接收到來(lái)自其他節(jié)點(diǎn)相同擴(kuò)頻碼道上的強(qiáng)干擾。提出了一種HSDPA軟小區(qū)下的自適應(yīng)協(xié)作算法，并給出了算法的流程以及節(jié)點(diǎn)在每子幀上自適應(yīng)選擇對(duì)邊緣用戶的服務(wù)方式。仿真結(jié)果表明，該算法能夠在不同業(yè)務(wù)模型場(chǎng)景下，在保證用戶總吞吐率不下降的同時(shí)提升邊緣用戶性能。%Due to the particularity of High Speed Downlink Packet Access ( HSDPA) ,cell edge users in HSDPA HetNet suffer from serious interference,especially in soft cell where different nodes under the same cell have the same cell ID.We propose an adaptive cooperation algorithm for HSDPA soft cell,which can adaptively choose service pattern for cell edge users in each sub-frame.A system-level simulation show that the proposed algorithm can effectively improve the performance of the cell edge users without reducing the throughput rate of users..
摘要：
TD-SCDMA網(wǎng)絡(luò)主要用于承載數(shù)據(jù)業(yè)務(wù)，同時(shí)通過(guò)調(diào)整容量、覆蓋、質(zhì)量之間的均衡關(guān)系，保證用戶速率將是優(yōu)化的重點(diǎn)之一。本文研究了TD-SCDMA網(wǎng)絡(luò)H業(yè)務(wù)鏈路層平均BLER優(yōu)化的原則和步驟，一般可分為幾步：首先設(shè)定質(zhì)量指標(biāo)，定義下載速率和BLER的性能指標(biāo)，通過(guò)網(wǎng)管系統(tǒng)、路測(cè)設(shè)備等收集網(wǎng)絡(luò)性能數(shù)據(jù)，綜合考慮功控、CQI算法，制定詳細(xì)的優(yōu)化步驟，調(diào)整參數(shù)，制定整體質(zhì)量解決方案。本文主要通過(guò)研究TD-SCDMA網(wǎng)絡(luò)CQI修正算法、功率控制算法，結(jié)合現(xiàn)網(wǎng)無(wú)線環(huán)境質(zhì)量、網(wǎng)絡(luò)容量與負(fù)荷分析，合理配置相關(guān)算法參數(shù)，達(dá)到算法機(jī)制與現(xiàn)網(wǎng)情況的最佳匹配，改善HSDPA業(yè)務(wù)鏈路層誤塊率。%The main function of TD-SCDMA network is to load the data, and one of main point of optimization is to ensure users rate through adjusting the relationship between capability, coverage and quality of the network to let them balance. The paper researches the principles and steps of optimization about BLER. Generally speaking, optimization process includes several steps as follow. First, we need set the quality index and performance index of BLER and then define the download rate. Then, through collecting the performance data of network by NMS and drive test device to consider comprehensively power control and CQI algorithm for setting the detail steps of optimization, then we could adjust parameter and formulate the overall quality solutions. The paper mixes the wireless environment quality of existed network and analysis of network capability and load to collocate relative parameter effectively through researching the CQI correcting algorithm and power control algorithm of TD-SCDMA. Finally, it realizes the best fit of algorithm mechanism and existed network condition so that the block error rate of HSDPA LLC could be improved.
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