Method for improving quality of service management in a mobile packet radio communication cellular system
First Claim
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1. A method of improving quality of service management in a packet mode cellular mobile radio system, the method comprising:
- in the event of a change of cell from an old cell to a new cell, transferring information on a quality of service profile negotiated in the old cell to the new cell, andperforming a quality of service management procedure to prevent degraded quality of service if the quality of service profile negotiated in the old cell is not offered in the new cell,wherein the transferring of the information on the quality of service profile negotiated in the old cell is performed by a base station subsystem (BSS) in response to a request by a serving GPRS support node (SGSN), andwherein the information on the quality of service profile negotiated in the old cell corresponds to a base station subsystem context which is associated with a mobile station and liable to contain a plurality of packet flow contexts (PFC).
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Abstract
Method of improving quality of service management in a packet mode cellular mobile radio system, in which method:
- in the event of a change of cell from an old cell to a new cell, information on a quality of service profile negotiated in the old cell is transferred to the new cell, and
- an additional quality of service management procedure is also provided, to prevent degraded quality of service if the quality of service profile negotiated in the old cell may not be offered in the new cell.
14 Citations
27 Claims
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1. A method of improving quality of service management in a packet mode cellular mobile radio system, the method comprising:
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in the event of a change of cell from an old cell to a new cell, transferring information on a quality of service profile negotiated in the old cell to the new cell, and performing a quality of service management procedure to prevent degraded quality of service if the quality of service profile negotiated in the old cell is not offered in the new cell, wherein the transferring of the information on the quality of service profile negotiated in the old cell is performed by a base station subsystem (BSS) in response to a request by a serving GPRS support node (SGSN), and wherein the information on the quality of service profile negotiated in the old cell corresponds to a base station subsystem context which is associated with a mobile station and liable to contain a plurality of packet flow contexts (PFC). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A core network entity for a packet mode cellular mobile radio system, in particular a serving GPRS support node (SGSN) entity, comprising:
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means for, in the event of a change of cell from an old cell to a new cell, requesting from a radio access network entity, in particular a Base Station Subsystem (BSS) entity, a transfer to the new cell of information on a quality of service profile negotiated in the old cell, and means for performing an additional quality of service management procedure, to prevent degraded quality of service if the quality of service profile negotiated in the old cell may not be offered in the new cell, wherein the quality of service profile information transferred corresponds to a base station subsystem context associated with a mobile station and liable to contain a plurality of packet flow contexts (PFC), wherein said means for performing additional quality of service management procedure comprise; means for, if quality of service profile information may not be transferred, performing a new packet flow context creation procedure for the new cell, said context being characterized by a quality of service profile adapted to the new cell, and said adaptation taking account of the quality of service profile that the radio access network indicates it is able to offer in the new cell. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A radio access network entity for a packet mode cellular mobile radio system, in particular a base station subsystem (BSS) entity, comprising:
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means for, in the event of a change of cell from an old cell to a new cell, transferring to the new cell information on a quality of service profile negotiated in the old cell, on request of a Core Network entity, in particular a serving GPRS support node (SGSN) entity, and means for performing an additional quality of service management procedure, to prevent degraded quality of service if the quality of service profile negotiated in the old cell may not be offered in the new cell wherein the quality of service profile information transferred corresponds to a base station subsystem context associated with a mobile station and liable to contain a plurality of packet flow contexts (PFC), wherein said means for performing additional quality of service management procedure comprise; means for, if quality of service profile information may not be transferred, performing a new packet flow context creation procedure for the new cell, said context being characterized by a quality of service profile adapted to the new cell, and said adaptation taking account of the quality of service profile that the radio access network indicates it is able to offer in the new cell. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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Specification