Method for sending status information in mobile telecommunications system and receiver of mobile telecommunications
First Claim
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1. A method for sending status information in a mobile communications system, comprising:
- constructing a status protocol data unit (PDU), the status PDU used to provide at least one of a positive acknowledgement and a negative acknowledgement of radio link control (RLC) data PDUs,wherein the RLC data PDUs comprise at least one of acknowledged mode data (AMD) PDUs and portions of AMD PDUs; and
transmitting the constructed status PDU to a peer RLC entity,wherein the constructing step is performedby considering available resources such that the constructed status PDU fits to a total size of the available resources, andby using a receive state variable and a maximum status transmit state variable, andwherein the status PDU is for AMD PDUs with sequence numbers that include a sequence number of the receive state variable and at least one sequence number between the sequence number of the receive state variable and a sequence number of the maximum status transmit state variable.
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Abstract
Disclosed is a method of sending status information (STATUS PDU) in which a receiving side reports a data received state to a transmitting side in a mobile telecommunication system. A receiving side RLC entity considers an available radio resource to construct a status PDU fit to the size of the radio resource and then sends the constructed status PDU to a transmitting side RLC entity, thereby avoiding a deadlock situation of RLC protocols.
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Citations
13 Claims
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1. A method for sending status information in a mobile communications system, comprising:
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constructing a status protocol data unit (PDU), the status PDU used to provide at least one of a positive acknowledgement and a negative acknowledgement of radio link control (RLC) data PDUs, wherein the RLC data PDUs comprise at least one of acknowledged mode data (AMD) PDUs and portions of AMD PDUs; and transmitting the constructed status PDU to a peer RLC entity, wherein the constructing step is performed by considering available resources such that the constructed status PDU fits to a total size of the available resources, and by using a receive state variable and a maximum status transmit state variable, and wherein the status PDU is for AMD PDUs with sequence numbers that include a sequence number of the receive state variable and at least one sequence number between the sequence number of the receive state variable and a sequence number of the maximum status transmit state variable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for sending status information from a receiving side radio link control (RLC) entity to a transmitting side RLC entity in a mobile communications system, the method comprising:
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constructing by the receiving side RLC entity a status protocol data unit (STATUS PDU) by considering an available radio resource such that the constructed STATUS PDU fits to a total size of the available radio resource, the STATUS PDU including information related to a reception state of RLC data PDUs; and transmitting by the receiving side RLC entity the constructed STATUS PDU to the transmitting side RLC entity, wherein the constructing step comprises; selectively including negative acknowledgement sequence numbers (NACK_SNs) as many as being transmittable by using the available radio resource, and by using a receive state variable and a maximum status transmit state variable; and setting an acknowledgement sequence number (ACK_SN) value to a sequence number value of the maximum status transmit state variable, wherein the status PDU is for AMD PDUs with sequence numbers, that include a sequence number of the receive state variable and at least one sequence number between the sequence number of the receive state variable and a sequence number of the maximum status transmit state variable.
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13. A receiving side radio link control (RLC) entity in a mobile communications system, comprising a module configured to:
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check an available radio resource; construct a status protocol data unit (STATUS PDU) by considering the available radio resource so that the STATUS PDU fits to a total size of the available radio resource, and by using a receive state variable and a maximum status transmit state variable, wherein negative acknowledgement (NACK) elements are included in the STATUS PDU, and an acknowledgement sequence number (ACK_SN) value is set; and send the constructed STATUS PDU to a peer RLC entity, wherein the status PDU is for AMD PDUs with sequence numbers that include a sequence number of the receive state variable and at least one sequence number between the sequence number of the receive state variable and a sequence number of the maximum status transmit state variable.
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Specification