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US 2011/0216645 A1Published application
Circuit switched fallback procedure
AssigneeQUALCOMM Incorporated
InventorsOsok Song, Fatih Ulupinar, Shyamal Ramachandran
Life of this patent
Estimating the term…
Abstract
A CS fallback procedure handles conflict that may arise when handover operations occur during CS fallback. If CS fallback is initiated for an access terminal and handover of that access terminal is then initiated before the CS fallback completes, the target for the handover is informed of the CS fallback so that the target may perform the appropriate CS fallback operations.
Claims60
A method of communication, comprising:
- sending a message to a first access point, wherein the message includes a circuit switched fallback indicator associated with an access terminal;
- determining, after the message is sent to the first access point, that handover of the access terminal from the first access point to a second access point has been initiated;
- and
- sending a message to the second access point as a result of the determination, wherein the message sent to the second access point includes the circuit switched fallback indicator associated with the access terminal.
1 more element
An apparatus for communication, comprising:
- a circuit switched fallback controller configured to send a message to a first access point, wherein the message includes a circuit switched fallback indicator associated with an access terminal;
- and
- a handover controller configured to determine, after the message is sent to the first access point, that handover of the access terminal from the first access point to a second access point has been initiated,
- wherein the circuit switched fallback controller is further configured to send a message to the second access point as a result of the determination, and wherein the message sent to the second access point includes the circuit switched fallback indicator associated with the access terminal.
1 more element
An apparatus for communication, comprising:
- means for sending a message to a first access point, wherein the message includes a circuit switched fallback indicator associated with an access terminal;
- means for determining, after the message is sent to the first access point, that handover of the access terminal from the first access point to a second access point has been initiated;
- and
- means for sending a message to the second access point as a result of the determination, wherein the message sent to the second access point includes the circuit switched fallback indicator associated with the access terminal.
1 more element
A computer-program product, comprising:
- computer-readable medium comprising code for causing a computer to:
- send a message to a first access point, wherein the message includes a circuit switched fallback indicator associated with an access terminal;
- determine, after the message is sent to the first access point, that handover of the access terminal from the first access point to a second access point has been initiated;
- and
- send a message to the second access point as a result of the determination, wherein the message sent to the second access point includes the circuit switched fallback indicator associated with the access terminal.
2 more elements
Dependencies are inferred from the claim text.