Preserving sessions in a wireless network
First Claim
Patent Images
1. A method performed by a network device, comprising:
- receiving, session information used to pass session data to an access terminal, wherein the session information is associated with a session established on the access terminal;
saving a minimum portion of the session information for reestablishing the session, the minimum portion of the session information comprising (i) a unicast access terminal identifier, a hardware identifier, and a packet data serving node identifier, and (ii) a control channel cycle identifying a periodic window of time in which the access terminal is configured to receive a close session message; and
in response to a degradation of the session, triggering a reestablishment of the session using the minimum portion of the session information,wherein triggering the reestablishment of the session comprises;
determining that a present time corresponds to the periodic window of time in which the access terminal is configured to receive the close session message; and
causing the close session message to be sent to the access terminal, the close session message causing the access terminal to (i) terminate the session established on the access terminal, and (ii) reestablish the session on the access terminal using the minimum portion of the session information.
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Accused Products
Abstract
A radio network controller and methods for reestablishing sessions in a wireless network are described. At least a portion of session information associated with a first session is saved; and in response to detecting an unexpected degradation of the first session, reestablishment of the first session is triggered using the portion of the session information.
308 Citations
45 Claims
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1. A method performed by a network device, comprising:
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receiving, session information used to pass session data to an access terminal, wherein the session information is associated with a session established on the access terminal; saving a minimum portion of the session information for reestablishing the session, the minimum portion of the session information comprising (i) a unicast access terminal identifier, a hardware identifier, and a packet data serving node identifier, and (ii) a control channel cycle identifying a periodic window of time in which the access terminal is configured to receive a close session message; and in response to a degradation of the session, triggering a reestablishment of the session using the minimum portion of the session information, wherein triggering the reestablishment of the session comprises; determining that a present time corresponds to the periodic window of time in which the access terminal is configured to receive the close session message; and causing the close session message to be sent to the access terminal, the close session message causing the access terminal to (i) terminate the session established on the access terminal, and (ii) reestablish the session on the access terminal using the minimum portion of the session information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A system comprising:
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a network device; and one or more machine-readable media configured to store instructions that are executable by the network device to perform functions comprising; receiving session information that is used to pass session data to an access terminal, wherein the session information is associated with a session established on the access terminal; saving a minimum portion of the session information for reestablishing the session, the minimum portion of the session information comprising (i) a unicast access terminal identifier, a hardware identifier, and a packet data serving node identifier, and (ii) a control channel cycle identifying a periodic window of time in which the access terminal is configured to receive a close session message; in response to a degradation of the session, triggering a reestablishment of the session using the minimum portion of the session information, wherein triggering the reestablishment of the session comprises; determining that a present time corresponds to the periodic window of time in which the access terminal is configured to receive the close session message; and
causing the close session message to be sent to the access terminal, the close session message causing the access terminal to (i) terminate the session established on the access terminal, and (ii) reestablish the session on the access terminal using the minimum portion of the session information. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A non-transitory computer readable storage medium having instructions stored thereon, executed by a processor of a first network device for:
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receiving session information used to pass session data to an access terminal, wherein the session information is associated with a session established on the access terminal; saving a minimum portion of the session information for reestablishing the session, the minimum portion of the session information comprising (i) a unicast access terminal identifier, a hardware identifier, and a packet data serving node identifier, and (ii) a control channel cycle identifying a periodic window of time in which the access terminal is configured to receive a close session message; and in response to a degradation of the session, triggering a reestablishment of the session using the minimum portion of the session information, wherein triggering the reestablishment of the session comprises determining that a present time corresponds to the periodic window of time in which the access terminal is configured to receive the close session message; and causing the close session message to be transmitted to the access terminal, the close session message causing the access terminal to (i) terminate the session established on the access terminal and (ii) reestablish the session on the access terminal using the minimum portion of the session information. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45)
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Specification