Method and related apparatus for performing status report procedure in a wireless communication system
A method for performing a status report procedure in a receiver of a wireless communication system includes forming a STATUS PDU in an RLC layer, forming a Data PDU with a flexible size when a mode of flexible RLC PDU size is configured, combining the Data PDU with the STATUS PDU for forming a concatenated RLC PDU for a MAC layer, forming a MAC PDU for carrying the concatenated RLC PDU, and transmitting the MAC PDU to a peer transmitter.
1. A method for performing a status report procedure in a receiver of a wireless communication system comprising:
forming a STATUS Protocol Data Unit (STATUS PDU) in a Radio Link Control (RLC) layer;
forming a Data PDU with a flexible size when a mode of flexible RLC PDU size is configured;
combining the Data PDU with the STATUS PDU for forming a concatenated RLC PDU for a Medium Access Control (MAC) layer;
forming a MAC PDU for carrying the concatenated RLC PDU; and
transmitting the MAC PDU to a peer transmitter.
2. The method of claim 1 , wherein combining the Data PDU with the STATUS PDU for forming the concatenated RLC PDU for the MAC layer further comprises adding a Length Indicator (LI) field in the concatenated RLC PDU for indicating a position of the STATUS PDU.
3. The method of claim 1 , wherein the STATUS PDU comprises a SUFI (Super Field) for indicating the end of the STATUS PDU.
4. The method of claim 3 , wherein the SUFI is a NO_MORE SUFI or an ACK SUFI.
5. The method of claim 3 , wherein combining the Data PDU with the STATUS PDU for forming the concatenated RLC PDU for the MAC layer further comprises removing a header of the STATUS PDU.
6. The method of claim 5 , further comprising defining a specific field with a reserved value in the Data PDU header to indicate the SUFI exists in the STATUS PDU.
7. The method of claim 1 , wherein forming the MAC PDU for carrying the concatenated RLC PDU comprises forming a header for indicating parameters of the concatenated RLC PDU.
8. A communication device of a wireless communication system utilized for performing a status report procedure comprising:
a control circuit for realizing functions of the communication device;
a processor installed in the control circuit for executing a program code to operate the control circuit; and
a memory coupled to the processor for storing the program code;
wherein the program code comprises:
forming a STATUS Protocol Data Unit (STATUS PDU) in a Radio Link Control (RLC) layer;
forming a Data PDU with a flexible size when a mode of flexible RLC PDU size is configured;
combining the Data PDU with the STATUS PDU for forming a concatenated RLC PDU for a Medium Access Control (MAC) layer;
forming a MAC PDU for carrying the concatenated RLC PDU; and
transmitting the MAC PDU to a peer transmitter.
9. The communication device of claim 8 , wherein in the program code, combining the Data PDU with the STATUS PDU for forming the concatenated RLC PDU for the MAC layer further comprises adding a Length Indicator (LI) field in the concatenated RLC PDU for indicating a position of the STATUS PDU.
10. The communication device of claim 8 , wherein the STATUS PDU comprises a SUFI (Super Field) for indicating the end of the STATUS PDU.
11. The communication device of claim 10 , wherein the SUFI is a NO_MORE SUFI or an ACK SUFI.
12. The communication device of claim 10 , wherein in the program code, combining the Data PDU with the STATUS PDU for forming the concatenated RLC PDU for the MAC layer further comprises removing a header of the STATUS PDU.
13. The communication device of claim 12 , wherein the program code further comprises defining a specific field with a reserved value in the Data PDU header to indicate the SUFI exists in the STATUS PDU.
14. The communication device of claim 8 , wherein in the program code, forming the MAC PDU for carrying the concatenated RLC PDU comprises forming a header for indicating parameters of the concatenated RLC PDU.
15. A method for performing a status report procedure in a transmitter of a wireless communication system comprising:
receiving a Medium Access Control Protocol Data Unit (MAC PDU) carrying a concatenated RLC (Radio Link Control) PDU formed by a STATUS PDU and a Data PDU with a flexible size from a receiver, which has configured a mode of flexible RLC PDU size;
extracting the STATUS PDU and the Data PDU; and
determining a status of the receiver according to the STATUS PDU.
16. The method of claim 15 , wherein extracting the STATUS PDU and the Data PDU from the MAC PDU comprises:
determining lengths and/or positions of the STATUS PDU and the Data PDU in the concatenated RLC PDU; and
extracting the STATUS PDU and the Data PDU according to the lengths and/or positions of the STATUS PDU and the Data PDU in the concatenated RLC PDU.
17. The method of claim 16 , wherein determining the lengths and/or positions of the STATUS PDU and the Data PDU is performed according to a Length Indicator (LI) field indicating a position of the STATUS PDU in the concatenated RLC PDU.
18. The method of claim 16 , wherein determining the lengths and/or positions of the STATUS PDU and the Data PDU is performed according to a Length (L) field indicating a length of the concatenated RLC PDU in a header of the MAC PDU.
19. The method of claim 16 , wherein determining the lengths and/or positions of the STATUS PDU and the Data PDU is performed according to a Length (L) field indicating a length of the concatenated RLC PDU in a header of the MAC PDU and a SUFI (Super Field) indicating the end of the STATUS PDU in the STATUS PDU.
20. The method of claim 19 , wherein the SUFI is a NO_MORE SUFI or an ACK SUFI.
21. A communication device of a wireless communication system utilized for performing a status report procedure comprising:
a control circuit for realizing functions of the communication device;
a processor installed in the control circuit for executing a program code to operate the control circuit; and
a memory coupled to the processor for storing the program code;
wherein the program code comprises:
receiving a Medium Access Control Protocol Data Unit (MAC PDU) carrying a concatenated RLC (Radio Link Control) PDU formed by a STATUS PDU and a Data PDU with a flexible size from a receiver, which has configured a mode of flexible RLC PDU size;
extracting the STATUS PDU and the Data PDU; and
determining a status of the receiver according to the STATUS PDU.
22. The communication device of claim 21 , wherein extracting the STATUS PDU and the Data PDU from the MAC PDU comprises:
determining lengths and/or positions of the STATUS PDU and the Data PDU in the concatenated RLC PDU; and
extracting the STATUS PDU and the Data PDU according to the lengths and/or positions of the STATUS PDU and the Data PDU in the concatenated RLC PDU.
23. The communication device of claim 22 , wherein determining the lengths and/or positions of the STATUS PDU and the Data PDU is performed according to a Length Indicator (LI) field indicating a position of the STATUS PDU in the concatenated RLC PDU.
24. The communication device of claim 22 , wherein determining the lengths and/or positions of the STATUS PDU and the Data PDU is performed according to a Length (L) field indicating a length of the concatenated RLC PDU in a header of the MAC PDU.
25. The communication device of claim 22 , wherein determining the lengths and/or positions of the STATUS PDU and the Data PDU is performed according to a Length (L) field indicating a length of the concatenated RLC PDU in a header of the MAC PDU and a SUFI (Super Field) indicating the end of the STATUS PDU in the STATUS PDU.
26. The communication device of claim 25 , wherein the SUFI is a NO_MORE SUFI or an ACK SUFI.