Method and apparatus for improving RRC connection procedure
The present invention provides a method for improving a Radio Resource Control (RRC) Connection procedure in a user equipment (UE) of a wireless communication system. The method includes steps of performing an RRC Connection procedure, and resetting or re-establishing a lower layer protocol entity for Signalling Radio Bearers (SRBs) when a cell reselection occurs.
1. A method for improving a Radio Resource Control (RRC) Connection procedure in a user equipment (UE) of a wireless communication system, the method comprising:
performing an RRC Connection procedure; and
re-establishing a Radio Link Control (RLC) entity for a Signalling Radio Bearer (SRB) when a cell reselection occurs.
2. The method of claim 1 , wherein the RRC Connection procedure is an RRC Connection establishment procedure.
3. The method of claim 1 , wherein the RRC Connection procedure is an RRC Connection Re-establishment procedure.
4. The method of claim 1 , wherein the SRB is an SRB0.
5. The method of claim 1 , wherein the RLC entity is a Transparent Mode (TM) RLC entity.
6. The method of claim 1 , wherein re-establishing the RLC entity for the SRB comprises flushing a transmission buffer of the RLC entity.
7. A communication device for improving a Radio Resource Control (RRC) Connection procedure in a user equipment (UE) of a wireless communication system, the communication device comprising:
a processor for executing a program code; and
a memory coupled to the processor for storing the program code;
wherein the program code comprises:
performing an RRC Connection procedure; and
re-establishing a Radio Link Control (RLC) entity for a Signalling Radio Bearer (SRB) when a cell reselection occurs.
8. The communication device of claim 7 , wherein the RRC Connection procedure is an RRC Connection establishment procedure.
9. The communication device of claim 7 , wherein the RRC Connection procedure is an RRC Connection Re-establishment procedure.
10. The communication device of claim 7 , wherein the SRB is an SRB0.
11. The communication device of claim 7 , wherein the RLC entity is a Transparent Mode (TM) RLC entity.
12. The communication device of claim 7 , wherein re-establishing the RLC entity for the SRB comprises flushing a transmission buffer of the RLC entity.
13. A method for improving a Radio Resource Control (RRC) Connection procedure in a user equipment (UE) of a wireless communication system, the method comprising:
performing an RRC Connection procedure; and
resetting a Medium Access Control (MAC) entity for a Signalling Radio Bearer (SRB) when a cell reselection occurs;
wherein resetting the MAC entity for the SRB comprises stopping an ongoing Random Access procedure.
14. The method of claim 13 , wherein the RRC Connection procedure is an RRC Connection establishment procedure.
15. The method of claim 13 , wherein the RRC Connection procedure is an RRC Connection Re-establishment procedure.
16. The method of claim 13 , wherein the SRB is an SRB0.
17. A communication device for improving a Radio Resource Control (RRC) Connection procedure in a user equipment (UE) of a wireless communication system, the communication device comprising:
a processor for executing a program code; and
a memory coupled to the processor for storing the program code; wherein the program code comprises:
performing RRC Connection procedure; and
resetting a Medium Access Control (MAC) entity for a Signalling Radio Bearer (SRB) when a cell reselection occurs;
wherein resetting the MAC entity for the SRB comprises stopping an ongoing Random Access procedure.
18. The communication device of claim 17 , wherein the RRC Connection procedure is an RRC Connection establishment procedure.
19. The communication device of claim 17 , wherein the RRC Connection procedure is an RRC Connection Re-establishment procedure.
20. The communication device of claim 17 , wherein the SRB is an SRB0.