Method and apparatus for dynamic negotiation of protocols
AssigneeAT&T Wireless Services, Inc.
InventorsFrank Favichia, Eamon O'Leary
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Abstract
Two intelligent nodes are provided with the capability of negotiating a protocol between them so that if the intelligent nodes operate at two different protocols then they can select a protocol appropriate for their communication. Furthermore, the intelligent nodes are provided with a locking shift capability so as to select between codesets that are available within a selected protocol.
Claims27
A method for establishing a communication protocol between a first network node and a second network node wherein the second network node is capable of operating at any one of a plurality of communication protocols, the method comprising:
- receiving, at the second network node, an indication of the operating communication protocol of the first network node;
- based on said indication, selecting as a designated protocol a communication protocol from the plurality of communication protocols, wherein said plurality of communication protocols includes at least two protocols related to each other in that one of said protocols is of a later version than the other protocol;
- sending an indication of said designated protocol to the first network node;
- selecting a messaging codeset from a plurality of messaging codesets within said designated protocol;
- and
- indicating the selected messaging codeset to the first network node.
A network node in a communication system comprising:
- a receiver that receives an indication of an operating communication protocol from another network node;
- a protocol selector that selects a designated protocol from a plurality of communication protocols wherein said plurality of communication protocols includes at least two protocols related to each other in that one of said protocol is of a later version than the other protocol;
- means for sending an indication of said designated protocol to the first network node:
- means for selecting one of a plurality of messaging codesets within said designated protocol;
- and
- means for sending an indication of said selected messaging codeset to the first network node.
The network node of claim wherein said designated protocol corresponds to said first protocol.
A method for negotiating a common communication protocol between a first network node operating in a preferred mode at a first protocol and second network node operating in a preferred mode at a second protocol, said method comprising the steps of:
- said first network node transmitting an indication of said first protocol to said second network node;
- said second network node comparing the indication of said first protocol to an identification of said second protocol, wherein said first protocol is of a later version than said second protocol;
- based on said comparison said second network node selecting a communication protocol for communication between said first network node and said second network node;
- sending an indication of the selected communication protocol from said second network node to said first network node;
- communicating between said first and second network nodes using the selected communication protocol, and
- selecting a messaging codeset form a plurality of messaging codesets within the selected communication protocol and identifying the selected messaging codeset to the other one of said first and second network nodes.
Dependencies are inferred from the claim text.