METHOD OF REORDERING AND REASSEMBLING PACKET DATA IN RADIO LINK CONTROL LAYER
First Claim
1. A method of distributing and performing reordering of protocol data units (PDUs) and reassembly of service data units (SDUs) in a radio link control (RLC) layer over many transmission time intervals (TTIs), comprising:
- recognizing, by an RLC entity of a reception side, a TTI start time;
initializing a count of the number of PDUs to be processed in a TTI;
processing a reordering timer by determining whether the reordering timer has expired, and performing a procedure of reassembling RLC SDUs and transmitting the reassembled RLC SDUs to an upper layer and updating the reordering timer when the reordering timer has expired;
processing reception by performing the procedure and updating the reordering timer when an RLC PDU received from a lower layer is an RLC PDU which should be received by retransmission from a transmission side before reordering timer expiration; and
processing transmission by processing RLC SDUs received from the upper layer,wherein the procedure limits the number of RLC PDUs to be processed within a TTI using the count of the number of PDUs to be processed within the TTI.
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Accused Products
Abstract
A method includes recognizing, by an RLC entity of a reception side, a transmission time interval (TTI) start time, initializing a count of the number of PDUs processed in a TTI, determining whether the reordering timer has expired, performing a procedure of reassembling RLC service data units (SDUs) and transmitting the reassembled RLC SDUs to an upper layer and updating the reordering timer when the reordering timer has expired, performing the procedure and updating the reordering timer when an RLC PDU received from a lower layer is an RLC PDU which should be received by retransmission of a transmission side before reordering timer expiration, and processing RLC SDUs received from the upper layer, wherein the procedure limits the number of RLC PDUs to be processed within a TTI using the count of the number of PDUs to be processed within the TTI.
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Citations
11 Claims
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1. A method of distributing and performing reordering of protocol data units (PDUs) and reassembly of service data units (SDUs) in a radio link control (RLC) layer over many transmission time intervals (TTIs), comprising:
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recognizing, by an RLC entity of a reception side, a TTI start time; initializing a count of the number of PDUs to be processed in a TTI; processing a reordering timer by determining whether the reordering timer has expired, and performing a procedure of reassembling RLC SDUs and transmitting the reassembled RLC SDUs to an upper layer and updating the reordering timer when the reordering timer has expired; processing reception by performing the procedure and updating the reordering timer when an RLC PDU received from a lower layer is an RLC PDU which should be received by retransmission from a transmission side before reordering timer expiration; and processing transmission by processing RLC SDUs received from the upper layer, wherein the procedure limits the number of RLC PDUs to be processed within a TTI using the count of the number of PDUs to be processed within the TTI. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of reassembling RLC SDUs of an RLC layer and transmitting the reassembled RLC SDUs to an upper layer in which the number of RLC PDUs to be processed for a reassembly of RLC SDUs in one TTI is limited for load distribution when the PDUs of the RLC layer are reordered and the SDUs of the RLC layer are reassembled, comprising:
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initializing a parameter for designating a range of a PDU SN indicating an RLC PDUs to be processed within the TTI; reassembling RLC SDUs by using RLC PDUs of which the number is the number of RLC PDUs to be processed for the reassembly of RLC SDUs within a TTI in the range of the PDU SN and transferring the reassembled RLC SDUs to the upper layer; and setting an SN of a first RLC PDU to be processed in the next TTI. - View Dependent Claims (11)
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Specification