Point-to-point prefix protocol
AssigneeNokia Corporation
InventorJari Mäenpää
Life of this patent
Estimating the term…
Abstract
A single protocol is used by sending systems to inform receiving systems what kind of data is arriving after the notification by this prefix protocol. The payload protocol follows, and is the real protocol that is used to exchange the data after the prefix protocol session. Although the PPP protocol allowed a negotiation of the used network protocol in the NCP, the PPP enforced that payload protocol data would always be carried inside HDLC framing. The payload protocol can be any protocol, and is only notified by prefix protocol HDLC frames, and therefore payload protocol data can be transferred inside any kind of protocol that is supported by a handler within the receiving system.
Claims24
Method for sending payload information from a sending terminal through a network to a receiving terminal, comprising the steps of:
- sending a selected number of prefix protocol packets indicative of a payload protocol of a payload protocol packet to follow from said sending terminal with said payload information through said network to said receiving terminal;
- and
- sending said payload protocol packet from said sending terminal to said receiving terminal following immediately after sending said selected number of prefix protocol packets.
Method of receiving payload information in a receiving terminal through a network from a sending terminal comprising the steps of:
- receiving a selected number of prefix protocol packets indicative of a payload protocol of a payload protocol packet to follow from said sending terminal with said payload information after said selected number of prefix protocol packets for synchronizing on said prefix protocol packets and for readying a handler of said payload protocol packets with said selected number chosen to allow synchronization;
- and
- receiving said payload protocol packet at said receiving terminal from said sending terminal following immediately after said step of receiving said selected number of prefix protocol packets.
Method of communicating payload information between a sending terminal and a receiving terminal over a network comprises the steps of:
- sending a selected number of prefix protocol packets indicative of a payload protocol of a payload protocol packet to follow from said sending terminal through said network to said receiving terminal with said payload information;
- receiving in said receiving terminal said selected number of prefix protocol packets indicative of said payload protocol of said payload protocol packet to follow after said selected number of prefix protocol packets for synchronizing on said prefix protocol packets and for readying a handler of said payload protocol packets;
- sending said payload protocol packet to said receiver following immediately after sending said selected number of prefix protocol packets;
- and
- receiving in said receiving terminal said payload protocol packet.
Terminal for sending payload information through a network to a receiving terminal, comprising:
- means for sending a selected number of prefix protocol packets indicative of a payload protocol of a payload protocol packet to follow with said payload information through said network to said receiving terminal;
- and
- means for sending said payload protocol packet to said receiving terminal following immediately after sending said selected number of prefix protocol packets.
Terminal for receiving payload information through a network from a sending terminal comprising:
- means for receiving a selected number of prefix protocol packets indicative of a payload protocol of a payload protocol packet with said payload information to follow after said selected number of prefix protocol packets for synchronizing on said prefix protocol packets and for readying a handler of said payload protocol packet with said selected number chosen to allow synchronization;
- and
- means for receiving said payload protocol packet.
Apparatus comprising a sending terminal and a receiving terminal for communicating payload information over a network, further comprising:
- means for sending in said sending terminal a selected number of prefix protocol packets indicative of a payload protocol of a payload protocol packet to follow through said network with said payload information to said receiving terminal;
- means for receiving in said receiving terminal said selected number of prefix protocol packets indicative of said payload protocol of said payload protocol packet to follow after said selected number of prefix protocol packets for synchronizing on said prefix protocol packets and for readying a handler of said payload protocol packet;
- means for sending in said sending terminal said payload protocol packet with said payload information through said network to said receiving terminal immediately after sending said selected number of prefix protocol packets;
- and
- means for receiving in said receiving terminal said payload protocol packet.
Dependencies are inferred from the claim text.