数字对讲机越区切换优化方案  

A Digital Two-Way Radio Handover Optimization Solution

作　　者：汤玲 刘星 罗正华 杨洋 TANG Ling;LIU Xing;LUO Zhenghua;YANG Yang(Hytera Communications Co.,Ltd.,Shenzhen 518057,China)

机构地区：[1]海能达通信股份有限公司,广东深圳518057

出　　处：《移动通信》2020年第10期81-86,共6页Mobile Communications

摘　　要：为了提升对讲机越区切换过程中的用户体验,提出了更快速、更可靠的越区切换优化方案。对讲机在待机时越区切换,会依照邻时隙的业务情况采用相应的策略,可在不影响业务漏收情况下更快速查找最优基站进行登记;对讲机在通话中越区切换时,通过更快速锁定空口、选用最佳切换点、丢失语音恢复、重复语音过滤以及预测语音关联性大大减少通话掉字。经测试,待机时越区速度提升达24倍,通话中越区掉字率减少高达85%,可有效提升越区切换的可靠性。In order to improve the user experience during the handover process for the two-way radio,a faster and more reliable handover optimization solution is proposed.When the two-way radio performs the handover in standby,it adopts the corresponding strategies according to the service situation of the neighbor time slot and quickly finds the optimal base station for registration without causing the service to be missed.When the two-way radio performs the handover during a call,the voice package lost is greatly reduced by fast locking air interface,selecting the best handover point,recovering the lost voice frame,filtering the repetitive voice frame and predicting the voice relevance.Through testing,the handover speed is increased by 24 times in standby,while the package loss in call handover is reduced by up to 85%,which effectively improve the handover reliability.

关 键 词：通话中越区 待机时越区 邻站扫描检测 

分 类 号：TN924[电子电信—通信与信息系统]