GSM网经过多年建设,己进入稳步发展阶段。但是由于受到网络频率资源的限制,网络容量与话务量增长之间的矛盾日益突出。文中介绍了半速率技术特点和爱尔兰B的概念,通过采用半速率技术,在不需要额外增加载频或额外投入频率资源的情况下,能有效地解决突发话务量和高话务量问题。最后提出了开启半速率信道的建议。 GSM network after years of construction, has entered a steady stage of development. However, due to the restriction of network frequency resources, the contradiction between network capacity and traffic growth has become increasingly prominent. This paper introduces the features of half-rate technology and the concept of Ireland B. Through the use of half-rate technology, it can effectively solve the problems of sudden traffic and high traffic without increasing the carrier frequency or adding extra frequency resources . Finally, the suggestion to open the half-rate channel is proposed.