Method and system for implementing single radio voice call continuity
First Claim
1. A resource policy decision method in a roaming scenario, comprising:
- after having received an available resource query message from a mobility management and control function (MMCF) entity, a resource and admission control function (RACF) entity of a visited network acquiring degrade information of current service of a user from a resource and admission control platform, and according to a candidate access network list in the available resource query message, checking current availability of resource of each candidate access network in the candidate access network list, so as to obtain resource availability information of each candidate access network, the degrade information comprises a parameter indicating whether or not already degraded, and the parameter indicating whether or not already degraded is used for indicating whether the current service of the user has been degraded;
the RACF entity of the visited network carrying out resource decision according to the degrade information, the resource availability information and user information of the user;
wherein,if the current service of the user has been degraded, then in addition to choosing the candidate access network with the available resources meeting demand of the current service of the user, further choosing the candidate access network with the available resources meeting demand of the original resource information of the service of the user; and
/orif the current service of the user has not been degraded, then in addition to choosing the candidate access network with the available resources meeting the demand of the current service of the user, in case the current service of the user allows degradation, further choosing the candidate access network with the available resources meeting the demand of the degraded service of the user.
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Abstract
Disclosed in the present invention are a resource policy decision method and system in a roaming scenario, for improving the accuracy of the resources allocated to the user. The method includes: after having received an available resource query message from a mobility management and control function MMCF entity, a resource and admission control function RACF entity of a visited network acquiring degrade information of current service of a user from a resource and admission control platform, and according to a candidate access network list in the available resource query message, checking current availability of resource of each candidate access network in the candidate access network list, so as to obtain resource availability information of each candidate access network; the RACF entity of the visited network carrying out resource decision according to the degrade information, the resource availability information and user information of the user.
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Citations
18 Claims
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1. A resource policy decision method in a roaming scenario, comprising:
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after having received an available resource query message from a mobility management and control function (MMCF) entity, a resource and admission control function (RACF) entity of a visited network acquiring degrade information of current service of a user from a resource and admission control platform, and according to a candidate access network list in the available resource query message, checking current availability of resource of each candidate access network in the candidate access network list, so as to obtain resource availability information of each candidate access network, the degrade information comprises a parameter indicating whether or not already degraded, and the parameter indicating whether or not already degraded is used for indicating whether the current service of the user has been degraded; the RACF entity of the visited network carrying out resource decision according to the degrade information, the resource availability information and user information of the user;
wherein,if the current service of the user has been degraded, then in addition to choosing the candidate access network with the available resources meeting demand of the current service of the user, further choosing the candidate access network with the available resources meeting demand of the original resource information of the service of the user; and
/orif the current service of the user has not been degraded, then in addition to choosing the candidate access network with the available resources meeting the demand of the current service of the user, in case the current service of the user allows degradation, further choosing the candidate access network with the available resources meeting the demand of the degraded service of the user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18)
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15. A resource policy decision system in a roaming scenario, comprising:
- a mobility management and control function (MMCF) entity, a resource and admission control function (RACF) entity of a visited network and a resource and admission control platform, wherein
the MMCF entity is configured to send an available resource query message to the RACF entity of the visited network when preparing for handover; the RACF entity of the visited network comprises a receiving unit, a sending unit, a resource availability checking unit and a resource deciding unit, wherein the receiving unit is configured to;
receive the available resource query message sent by the MMCF entity and receive degrade information of current service of a user fed back by the resource and admission control platform;the sending unit is configured to send a request of acquiring the degrade information of the current service of the user to the resource and admission control platform; the resource availability checking unit is configured to, according to a candidate access network list in the available resource query message, check the current resource availability of each candidate access network in the candidate access network list so as to obtain the resource availability information of each candidate access network; the resource deciding unit is configured to carry out resource decision according to the degrade information, the resource availability information and user information of the user; the resource and admission control platform is configured to feed back the degrade information of the current service of the user to the RACF entity of the visited network; wherein the degrade information comprises a parameter indicating whether or not already degraded, and the parameter indicating whether or not already degraded is used for indicating whether the current service of the user has been degraded; the resource deciding unit is further configured to, if the current service of the user has been degraded, besides choose the candidate access network with the available resources meeting demand of the current service of the user, further choose the candidate access network with the available resources meeting demand of the original resource information of the service of the user; and
/orif the current service of the user has not been degraded, besides choose the candidate access network with the available resources meeting the demand of the current service of the user, in case the current service of the user allows degradation, further choose the candidate access network with the available resources meeting the demand of the degraded service of the user.
- a mobility management and control function (MMCF) entity, a resource and admission control function (RACF) entity of a visited network and a resource and admission control platform, wherein
Specification