Apparatus and methods for constructing a data unit that includes a buffer status report
First Claim
1. In a mobile telecommunications system, a method of generating a data unit, wherein the data unit is employed, at least in part, to provide information to a serving base station about the amount of data that is available for transmission in an uplink, the method comprising:
- checking whether padding bits are available in the data unit; and
if there are padding bits available in the data unit, inserting into the data unit a truncated buffer status report (BSR) and a sub-header corresponding to the truncated BSR if it is determined that the number of padding bits is greater than or equal to the size of a short BSR plus a corresponding sub-header, but less than the size of a long BSR plus a corresponding sub-header and determined that a plurality of logical channel groups have buffered data available to transmit via the uplink.
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Abstract
An apparatus and method for constructing a data unit that includes a buffer status report (BSR) such that when BSR triggering is performed, the size(s) of the necessary sub-header(s) are also to be considered together in addition to the BSR size. There is a checking unit that checks whether any padding region is available in a MAC PDU that was constructed, a comparing unit that compares the number of padding bits with the size of a buffer status report (BSR) plus its sub-header, and a processing unit that cooperates with the checking unit and the comparing unit to trigger a buffer status report (BSR) procedure if the number of padding bits is larger than the size of the BSR plus its sub-header, including the BSR and its sub-header in the MAC PDU, and setting an LCID in the sub-header to indicate a BSR is included, the BSR having been triggered due to padding. Using such apparatus allows the sub-header(s) to be inserted (included) into the MAC PDU (or transport block (TB) or other data unit).
12 Citations
23 Claims
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1. In a mobile telecommunications system, a method of generating a data unit, wherein the data unit is employed, at least in part, to provide information to a serving base station about the amount of data that is available for transmission in an uplink, the method comprising:
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checking whether padding bits are available in the data unit; and if there are padding bits available in the data unit, inserting into the data unit a truncated buffer status report (BSR) and a sub-header corresponding to the truncated BSR if it is determined that the number of padding bits is greater than or equal to the size of a short BSR plus a corresponding sub-header, but less than the size of a long BSR plus a corresponding sub-header and determined that a plurality of logical channel groups have buffered data available to transmit via the uplink. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. In a mobile telecommunications system, a medium access control (MAC) entity in a mobile station comprising:
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a checking unit for determining whether padding bits are available in a MAC packet data unit (PDU); a comparing unit for comparing the number of padding bits, if padding bits are available, to the size of a short buffer status report (BSR) plus a corresponding sub-header and to the size of a long BSR plus a corresponding sub-header; and a processing unit for inserting into the MAC PDU a truncated BSR and a sub-header corresponding to the truncated BSR if the number of padding bits is greater than or equal to the size of a short BSR plus a corresponding sub-header, but less than the size of a long BSR plus a corresponding sub-header and if there are a plurality of logical channel groups that have buffered data available to transmit to a servicing base station. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification