Method, device and system for semi persisting scheduling of VoLET(Voice Over Long Term Evolution)services

• Main Authors: ZHANG YIXING, ZHANG KAI, LU MEILIAN
• Format: Patent
• Language: Chinese; English
• Published: 01.08.2012
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

The invention provides a method, a device and a system for semi persisting scheduling of VoLET (Voice Over Long Term Evolution) services. The method includes the following steps that: a semi persisting scheduling device receives a semi persisting scheduling request sent by a user equipment i and then calculates the priority P(i)=Pri(i)*lg(PrbN(i)*overline(COI)(i)+6)/lgRave(i) of the user equipment i, wherein Pri(i) represents the preset priority of the user equipment i, PrbN(i)represents the demanded quantity of a PRB (physical resource block), overline(CQI)(i) represents the average channel quality of the user equipment i, Rave(i) represents the average transmission rate demanded by the user equipment i; and the semi persisting scheduling device sequentially conducts semi persisting scheduling to a plurality of user equipment according to the priorities of the user equipment. Through the method, the device and the system, the utilization ratio of the wireless resource of the VoLTE services is improved, and t