Method for transmitting information for inter-radio access technology handover
First Claim
1. A method for transmitting inter-radio access technology (RAT) information for inter-RAT handover, the method comprising:
- receiving, at a mobile station, a super frame header (SFH) including a broadcast channel (BCH), a flag indicating whether the inter-RAT information is transmitted in a current superframe and a start frame number (SFN) field indicating a predetermined frame at which the inter-RAT information is transmitted, wherein the flag is allocated to the BCH; and
when the flag is set, acquiring the inter-RAT information at the predetermined frame which is included in the current superframe,wherein if the flag indicates that the inter-RAT information is not transmitted in the current superframe, the method further comprises;
transmitting, at the mobile station, a request message requesting the inter-RAT information to a base station, the request message including an urgent information field indicating whether acquisition of the inter-RAT information is urgent; and
receiving, at the mobile station, a response message including the inter-RAT information from the base station,wherein the inter-RAT information is acquired by the base station from a target network information server, if the base station does not include the inter-RAT information.
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Accused Products
Abstract
A method for transmitting and receiving inter-radio access technology (RAT) information for inter-RAT handover between a mobile station and a base station in a radio access system. A method for transmitting inter-RAT information for inter-RAT handover comprises: receiving a super frame header (SFH) including a flag indicating whether the inter-RAT information is transmitted in a current superframe and a start frame number field indicating a predetermined frame at which the inter-RAT information is transmitted, and if the flag is set, acquiring the inter-RAT information at a predetermined frame indicated by the start frame number field.
15 Citations
11 Claims
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1. A method for transmitting inter-radio access technology (RAT) information for inter-RAT handover, the method comprising:
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receiving, at a mobile station, a super frame header (SFH) including a broadcast channel (BCH), a flag indicating whether the inter-RAT information is transmitted in a current superframe and a start frame number (SFN) field indicating a predetermined frame at which the inter-RAT information is transmitted, wherein the flag is allocated to the BCH; and when the flag is set, acquiring the inter-RAT information at the predetermined frame which is included in the current superframe, wherein if the flag indicates that the inter-RAT information is not transmitted in the current superframe, the method further comprises; transmitting, at the mobile station, a request message requesting the inter-RAT information to a base station, the request message including an urgent information field indicating whether acquisition of the inter-RAT information is urgent; and receiving, at the mobile station, a response message including the inter-RAT information from the base station, wherein the inter-RAT information is acquired by the base station from a target network information server, if the base station does not include the inter-RAT information. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for transmitting inter-radio access technology (RAT) information for inter-RAT handover, the method comprising:
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transmitting, at a base station, a superframe header (SFH) including a broadcast channel (BCH), a flag indicating whether the inter-RAT information is present in a current superframe and a start frame number (SFN) field indicating a predetermined frame at which the inter-RAT information is transmitted, wherein the flag is allocated to the BCH; and when the flag is set, transmitting the inter-RAT information at the predetermined frame which is included in the current superframe, wherein if the flag indicates that the inter-RAT information is not transmitted in the current superframe, the method further comprises; receiving, at the base station, a request message requesting the inter-RAT information from a mobile station, the request message including an urgent information field indicating whether acquisition of the inter-RAT information is urgent; and transmitting, at the base station, a response message including the inter-RAT information to the mobile station, and wherein the inter-RAT information is acquired by the base station from a target network information server, if the base station does not include the inter-RAT information. - View Dependent Claims (9, 10, 11)
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Specification