CAJ | 학술논문

基于IMS的VoLTE（Voice over LTE）语音解决方案，已成为业界公认的LTE网络语音解决方案的主要发展方向。该方案可在实现LTE网络下提供高质量的音视频通话的同时提供高速率的数据业务。对基于IMS的VoLTE语音计费时如何实现IMS域和EPC域计费的关联进行了研究，提出了根据IMS APN标识关联EPC网络和通过PCRF传递IMS计费标识与P-GW计费标识进行关联的2种方法，从而使VoLTE语音产生的流量不进行计费；对当VoLTE语音发生SRVCC切换时如何避免IMS域和CS域语音重复计费进行了研究，提出了根据STN-SR和related-ICID进行话单过滤的2种方法，从而过滤掉CS重复话单。
기우IMS적VoLTE（Voice over LTE）어음해결방안，이성위업계공인적LTE망락어음해결방안적주요발전방향。해방안가재실현LTE망락하제공고질량적음시빈통화적동시제공고속솔적수거업무。대기우IMS적VoLTE어음계비시여하실현IMS역화EPC역계비적관련진행료연구，제출료근거IMS APN표식관련EPC망락화통과PCRF전체IMS계비표식여P-GW계비표식진행관련적2충방법，종이사VoLTE어음산생적류량불진행계비；대당VoLTE어음발생SRVCC절환시여하피면IMS역화CS역어음중복계비진행료연구，제출료근거STN-SR화related-ICID진행화단과려적2충방법，종이과려도CS중복화단。
VoLTE solution based on IMS has become the main development direction of LTE VoIP solutions. The scheme can be realized in the LTE network to provide the high quality of audio and video cal s while provide high rate data business. It studies how to realize the correlation of IMS domain and EPC domain during voice based on IMS charging, provides two methods of associat-ing EPC network according to IMS APN identifier and through the PCRF IMS charging logo and P-GW identification for correla-tion, to avoid the charging of the traffic of VoLTE. It also studies how to avoid the IMS domain and CS domain voice repeat bil-ing when current voice SRVCC switching occurs, and put forward two methods on filtering bil according to the STN-SR and related-ICID, so as to filter out the repeated bil ed in CS.