CAJ | 학술논문

认为异构网的引入有效提高了高速分组接入+（HSPA+）网络的整体性能，但由于构成异构网的宏基站（MNB）和低功率节点（LPN）发射功率不同，造成上下行数据传输的不均衡，这将不可避免地影响到异构网络的整体性能；增强专用信道（E-DCH）分离技术能够有效消除上下行不均衡问题带来的影响，但信道分离技术在实际应用中会有严重的时延问题。基于上述观点，讨论了HSPA+异构网共信道传输中的控制信道时延问题，并针对这个问题提出自适应灰色预测算法（AGP）实现时延补偿。系统仿真验证了算法的正确性和有效性。
인위이구망적인입유효제고료고속분조접입+（HSPA+）망락적정체성능，단유우구성이구망적굉기참（MNB）화저공솔절점（LPN）발사공솔불동，조성상하행수거전수적불균형，저장불가피면지영향도이구망락적정체성능；증강전용신도（E-DCH）분리기술능구유효소제상하행불균형문제대래적영향，단신도분리기술재실제응용중회유엄중적시연문제。기우상술관점，토론료HSPA+이구망공신도전수중적공제신도시연문제，병침대저개문제제출자괄응회색예측산법（AGP）실현시연보상。계통방진험증료산법적정학성화유효성。
Heterogeneous networking (HetNet) has been introduced to HSPA+ to enhance the system performance in a cost-efficient way. The uplink-downlink (UL-DL) mismatch caused by heterogeneous deployment reduces performance in the HSPA+ system. To mitigate this mismatch, enhanced dedicated channel (E-DCH) decoupling has been proposed. However, control channels for UL cause undesirable reception delay. In this paper, we focus on delay in co-channel HSPA+ HetNet and propose adaptive grey prediction (AGP) for delay compensation. System-level simulations show that our proposed method has some significant advantages.