METHOD OF EXCHANGING SMS DATA IN A WIRELESS COMMUNICATIONS SYSTEM
First Claim
1. A method of exchanging SMS data in a wireless communications system comprising wireless user equipment and a core network unit interfaced with the user equipment through a wireless access network,wherein a first short message relay entity and a first short message control entity are provided in one of the core network unit and the user equipment, while a second short message relay entity and a second short message control entity are provided in the other one of the core network unit and the user equipment,the method comprising, in the first short message control entity:
- transmitting first control protocol data to the second short message control entity, the first control protocol data conveying relay protocol data provided by the first short message relay entity for the second short message relay entity;
receiving from the second short message control entity second control protocol data conveying relay protocol acknowledgement information from the second short message relay entity; and
retransmitting the first control protocol data unless a control protocol acknowledgement is received from the second short message control entity before a timer expires, wherein the second control protocol data is interpreted as a control protocol acknowledgement for deciding whether the first control protocol data is to be retransmitted.
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Accused Products
Abstract
The system comprises wireless user equipment (UE) and a core network unit interfaced with the UE through a wireless access network. A first short message relay (SMR) entity and a first short message control entity (SMC) are provided in the core network unit or the UE, the other one having a second SMR entity and a second SMC entity. The method of exchanging SMS data comprises, in the first SMC entity:—transmitting to the second SMC entity first control protocol data (CP_DATA) conveying relay protocol data (RP_DATA) provided by the first SMR entity,—receiving from the second SMC entity second CP_DATA conveying relay protocol acknowledgement information (RP_ACK) from the second SMR entity; and—retransmitting the first CP_DATA unless an acknowledgement is received from the second SMC entity before a timer expires. The second CP_DATA is interpreted as an acknowledgement for deciding whether the first CP_DATA is to be retransmitted.
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Citations
18 Claims
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1. A method of exchanging SMS data in a wireless communications system comprising wireless user equipment and a core network unit interfaced with the user equipment through a wireless access network,
wherein a first short message relay entity and a first short message control entity are provided in one of the core network unit and the user equipment, while a second short message relay entity and a second short message control entity are provided in the other one of the core network unit and the user equipment, the method comprising, in the first short message control entity: -
transmitting first control protocol data to the second short message control entity, the first control protocol data conveying relay protocol data provided by the first short message relay entity for the second short message relay entity; receiving from the second short message control entity second control protocol data conveying relay protocol acknowledgement information from the second short message relay entity; and retransmitting the first control protocol data unless a control protocol acknowledgement is received from the second short message control entity before a timer expires, wherein the second control protocol data is interpreted as a control protocol acknowledgement for deciding whether the first control protocol data is to be retransmitted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 12, 13, 14, 15, 16, 17, 18)
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8. A wireless communication terminal, comprising:
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a first short message relay entity for providing relay protocol data for a second short message relay entity of a core network unit and for receiving relay protocol acknowledgement information from the second short message relay entity; and a first short message control entity for transmitting first control protocol data to a second short message control entity of the core network unit, the first control protocol data conveying the relay protocol data, and for receiving second control protocol data from the second short message control entity, the second control protocol data conveying the relay protocol acknowledgement information, wherein the first short message control entity is arranged for retransmitting the first control protocol data unless a control protocol acknowledgement is received from the second short message control entity before a timer expires, and for interpreting the second control protocol data as a control protocol acknowledgement for deciding whether the first control protocol data is to be retransmitted. - View Dependent Claims (9)
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10. A unit of a packet core network, capable of communicating with wireless user equipment through a wireless access network, the core network unit comprising:
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a first short message relay entity for providing relay protocol data for a second short message relay entity of the wireless user equipment and for receiving relay protocol acknowledgement information from the second short message relay entity; and a first short message control entity for transmitting first control protocol data to a second short message control entity of the wireless user equipment, the first control protocol data conveying the relay protocol data, and for receiving second control protocol data from the second short message control entity, the second control protocol data conveying the relay protocol acknowledgement information, wherein the first short message control entity is arranged for retransmitting the first control protocol data unless a control protocol acknowledgement is received from the second short message control entity before a timer expires, and for interpreting the second control protocol data as a control protocol acknowledgement for deciding whether the first control protocol data is to be retransmitted. - View Dependent Claims (11)
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Specification