Dynamic adaptation of maximum packet loss rate (PLR) for single radio voice call continuity (SRVCC) handover optimization using session description protocol (SDP)

摘要

User equipment (UE) includes processing circuitry, where to configure the UE for Single Radio Voice Call Continuity (SRVCC) handover from an LTE network to a legacy network with circuit switched (CS) communications, the processing circuitry is to encode a Session Description Protocol (SDP) message for transmission to a second UE within the LTE network. The SDP message includes a voice codec selection for voice over LTE communication with the second UE and a maximum end-to-end packet loss rate (E2E_MAX_PLR) that can be tolerated by the UE when using the voice codec. The UE decodes an SRVCC handover command from an eNB within the LTE network, the handover command based on at least one packet loss rate (PLR) associated with a packet switched voice communication link between the UE and the second UE exceeding a PLR threshold that is determined based on the E2E_MAX_PLR that can be tolerated by the UE.