Method for transmitting PDCP status report
First Claim
Patent Images
1. A method of handling PDCP (Packet Data Convergence Protocol) status reports, the method comprising:
- receiving, from an upper layer, a request for PDCP re-establishment;
detecting whether there are any out-of-sequence PDCP SDUs (service data units) stored;
if there is at least one out-of-sequence PDCP SDU stored, allocating a bitmap field to have a length based on PDCP sequence numbers (SNs) from and not including a first out-of-sequence PDCP SDU up to and including a last out-of-sequence PDCP SDU; and
if a last PDCP SDU is a first missing PDCP SDU, allocating the bitmap field to have the length of 0.
4 Assignments
0 Petitions
Accused Products
Abstract
A method of transmitting PDCP (Packet Data Convergence Protocol) status reports, is performed by a mobile terminal by receiving, from an upper layer, a request for PDCP (Packet Data Convergence Protocol) re-establishment; detecting whether there are any out-of-sequence PDCP SDUs (service data units) stored; and if there is at least one out-of-sequence PDCP SDU stored, allocating a bitmap field of length in bits equal to the number of PDCP SNs from and not including the first out-of-sequence PDCP SDU up to and including a last out-of-sequence PDCP SDU.
-
Citations
25 Claims
-
1. A method of handling PDCP (Packet Data Convergence Protocol) status reports, the method comprising:
-
receiving, from an upper layer, a request for PDCP re-establishment; detecting whether there are any out-of-sequence PDCP SDUs (service data units) stored; if there is at least one out-of-sequence PDCP SDU stored, allocating a bitmap field to have a length based on PDCP sequence numbers (SNs) from and not including a first out-of-sequence PDCP SDU up to and including a last out-of-sequence PDCP SDU; and if a last PDCP SDU is a first missing PDCP SDU, allocating the bitmap field to have the length of 0. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method of processing a PDCP (Packet Data Convergence Protocol) status report, the method comprising:
-
receiving, from an upper layer, a request for PDCP re-establishment; generating a PDCP status report by setting an FMS (First Missing Sequence number) field, wherein the FMS field is set to the PDCP sequence number of the first missing PDCP SDU (Service Data Unit); and if there are out-of-sequence PDCP SDUs stored, allocating a bitmap field having a length depending on the PDCP sequence numbers related to the first missing PDCP SDU through the last out-of-sequence PDCP SDUs; and if a last PDCP SDU is a first missing PDCP SDU, allocating the bitmap field a length of 0. - View Dependent Claims (13, 14, 15, 16, 17)
-
-
18. A method of generating a PDCP (Packet Data Convergence Protocol) status report, the method comprising:
-
receiving, from an upper layer, a request for PDCP re-establishment; and compiling a PDCP status report by, setting an FMS (First Missing Sequence number) field to the PDCP sequence number of the first missing PDCP SDU (Service Data Unit), and allocating a bitmap field with a length of 0, if a last PDCP SDU is a first missing PDCP SDU, and otherwise, allocating the bitmap field with a particular length that is based on PDCP sequence numbers from and not including the first missing PDCP SDU up to and including the last out-of-sequence PDCP SDUs, rounded up to the next multiple of 8. - View Dependent Claims (19, 20, 21)
-
-
22. A method of processing a PDCP (Packet Data Convergence Protocol) status report, the method comprising:
-
receiving, from an upper layer, a request for PDCP re-establishment; generating a PDCP status report by, setting an FMS (First Missing Sequence number) field to the PDCP sequence number of the first missing PDCP SDU (Service Data Unit), and allocating a bitmap field with a length of 0, if a last PDCP SDU is a first missing PDCP SDU, or allocating the bitmap field with a particular length such that the particular length of the bitmap field is based on PDCP sequence numbers from and not including the first missing PDCP SDU up to and including the last out-of-sequence PDCP SDUs, rounded up to the next multiple of 8, wherein the PDCP status report is further generated by filling the bitmap field with zeros (0) and ones (1), with a 0 bit indicating that a corresponding PDCP SDU was successfully received and a 1 bit indicating that a corresponding PDCP SDU was unsuccessfully received; and transmitting, via a lower layer, the generated PDCP status report. - View Dependent Claims (23, 24, 25)
-
Specification