Method and system for establishing bearer supporting uplink semi-persistent scheduling and user equipment thereof

摘要

Disclosed are a method and system for establishing a bearer supporting uplink Semi-Persistent Scheduling (SPS) and a User Equipment (UE) thereof, and the method includes: an RRC entity of a UE parses an RRC connection reconfiguration message transmitted from an eNB to obtain logic channel configuration information, EPS bearer activation request information and RBID information, transmits the logic channel configuration information to an MAC entity of the UE and transmits the EPS bearer activation request information and the RBID information to an NAS of the UE; the MAC entity of the UE establishes an LC and an LCG between itself and an RLC entity according to the received logic channel configuration information, and establishes a mapping between the RBID and the LCG; the NAS of the UE establishes an EPS bearer between itself and an NAS of an EPC according to the received EPS bearer activation request information, and establishes correspondences between classifiers and LCs; and parses a QCI and the RBID from the EPS bearer activation request information, establishes a mapping between the parsed QCI and the received RBID, and transmits the mapping to the MAC entity. The present disclosure enables a UE to identify LCGs that can be scheduled by SPS, thereby using efficiently uplink SPS resource and improving quality of uplink services scheduling.

主权项

1. A method for establishing a bearer supporting uplink Semi-Persistent Scheduling (SPS), comprising:
parsing, by a Radio Resource Control (RRC) entity of a User Equipment (UE), an RRC connection reconfiguration message transmitted from an Evolved Node B (eNB) to obtain logic channel configuration information and Evolved Packet System (EPS) bearer activation request information, parsing the logic channel configuration information to obtain Radio Bearer Identifier (RBID) information and Logic Channel Group (LCG) information, transmitting the parsed logic channel configuration information to a Media Access Control (MAC) entity of the UE and transmitting the EPS bearer activation request information and the RBID information to a Non-Access Stratum (NAS) of the UE; establishing, by the MAC entity of the UE, a Logic Channel (LC) and a Logic Channel Group (LCG) between itself and a Radio Link Control (RLC) entity according to the received logic channel configuration information, and establishing a mapping between the RBID and the LCG; establishing, by the NAS of the UE, an EPS bearer between itself and an NAS of an Evolved Packet Core network (EPC) according to the received EPS bearer activation request information, and establishing correspondences between classifiers and LCs; parsing a Quality of service Class Identifier (QCI) from the EPS bearer activation request information, establishing a mapping between the parsed QCI and the received RBID, and transmitting the mapping to the MAC entity; and establishing, by the MAC entity, a mapping among the QCI, the RBID and the LCG according to the established mapping between the RBID and the LCG and to the mapping between the QCI and the RBID transmitted from the NAS.