Protocol conversion and bandwidth reduction technique providing multiple NB+D ISDN basic rate interface links over a wireless code division multiple access communication system
First Claim
1. For use with a digital communication network having a first digital communication path for coupling Integrated Services Digital Network (ISDN) communication signals with a first wireless transceiver at a first site, said first wireless transceiver being operative to conduct wireless communications with a second wireless transceiver at a second site, a method of controlling bandwidth utilization of said network comprising the steps of:
- (a) in response to establishment of a communication session between said first and second sites, controlling said first wireless transceiver to appear to said first digital communication path as though the bandwidth is continuously available during said communication session for wireless communications between said first and second transceivers, irrespective of the a need to transport ISDN communication signals between said first and second sites;
and(b) in the absence of said need to transport ISDN communication signals between said first and second sites, making said bandwidth available for wireless communication by another wireless transceiver of said digital communication network; and
looping back synchronizing and maintenance bits on the IDSN link to spoof an ISDN physical layer protocol.
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Accused Products
Abstract
A technique for integrating services digital network (ISDN) and code division multiple access (CDMA) or other digital wireless communication protocols by a technique that strips off lower protocol layers, such as layers one and two of the ISDN protocol and sending only layer three and above messages over a more efficient wireless protocol.
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Citations
37 Claims
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1. For use with a digital communication network having a first digital communication path for coupling Integrated Services Digital Network (ISDN) communication signals with a first wireless transceiver at a first site, said first wireless transceiver being operative to conduct wireless communications with a second wireless transceiver at a second site, a method of controlling bandwidth utilization of said network comprising the steps of:
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(a) in response to establishment of a communication session between said first and second sites, controlling said first wireless transceiver to appear to said first digital communication path as though the bandwidth is continuously available during said communication session for wireless communications between said first and second transceivers, irrespective of the a need to transport ISDN communication signals between said first and second sites;
and(b) in the absence of said need to transport ISDN communication signals between said first and second sites, making said bandwidth available for wireless communication by another wireless transceiver of said digital communication network; and looping back synchronizing and maintenance bits on the IDSN link to spoof an ISDN physical layer protocol. - View Dependent Claims (2, 3, 4)
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5. For use with a digital communication network having a first digital communication path for coupling data communication signals with a first wireless transceiver at a first site, said first wireless transceiver being operative to conduct wireless communications with a second wireless transceiver at a second site, a method of controlling wireless communication bandwidth comprising the steps of:
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(a) in response to establishment of a communication session between said first and second sites, controlling said first wireless transceiver to appear to said first digital communication path as though the bandwidth is continuously available during said communication session for wireless communications between said first and second transceivers, irrespective of a need to transport data communication signals between said first and second sites; and
, wherein the data communication signals include layer two frames including a serial number and a frame type;(b) in the absence of said need to transport data communication signals between said first and second sites, making said bandwidth available for wireless communication by another wireless transceiver of said digital communication network; (c) combining, by at least one of the first or second transceiver sites, a plurality of bearer channels onto a single data channel, and allocating a plurality of radio channels based on a required data rate; (d) maintaining a connection at a network layer above a data link layer by establishing a lower level connection and using radio frequency bandwidth only when required; and (e) looping back a higher layer protocol by removing flag bits. - View Dependent Claims (6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21)
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10. A digital communication system comprising:
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a first wireless transceiver located at a first site, said first wireless transceiver being coupled to receive data communication signals from a first digital communication path, and being operative to conduct wireless communications; a second wireless transceiver located at a second site, said second wireless transceiver being operative to conduct wireless communication with said first wireless transceiver; means for establishing a communication session between said first and second sites, and for controlling said first wireless transceiver to appear to said first digital communication path as though communication bandwidth is continuously available during said communication session for wireless communication between said first and second transceivers, irrespective of a need to transport data communication signals between said first and second sites, wherein the data communication signals include layer two frames including a serial number and a frame type; means for making said bandwidth available for wireless communication by another wireless transceiver of said digital communication network, in the absence of said need to transport data communication signals between said first and second sites;
andmeans for maintaining a connection at a network layer above a data link layer by establishing a lower level connection and using radio frequency bandwidth only when required, wherein at least one of the first or second wireless transceivers is operable to combine a plurality of bearer channels onto a single data channel and allocate a plurality of radio channels based on a required data rate; and means for looping back synchronizing and maintenance bits on the link layer to spoof a physical layer protocol. - View Dependent Claims (11, 12, 13, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A digital communication system comprising:
- a first wireless transceiver located at a first site, said first wireless transceiver to receive data communication signal from a first digital communication path, and being operative to conduct wireless communications;
a second wireless transceiver located at a second site, said second wireless transceiver to conduct wireless communication with said first wireless transceiver; a controller to establish a communication session between said first and second sites, and to control said first wireless transceiver to appear to said first digital communication path as though communication bandwidth is continuously available during said communication session for wireless communication between said first and second transceivers, irrespective of a need to transport data communication signals between said first and second sites, wherein the data communication signals include layer two frames including a serial number and a frame type; a bandwidth management device to make said bandwidth available for wireless communication by another wireless transceiver of said digital communication network, in the absence of said need to transport data communication signals between said first and second sites; and the controller to maintain a connection at a network layer above a data link layer by establishing a lower level connection and using radio frequency bandwidth only when required, to loop back a higher layer protocol and to control a transceiver of a code division multiple access (CDMA) user device to facilitate use of a data traffic channel and a control channel associated with a packet data communication session and to transmit information indicative of a data rate associated with the data traffic channel on the control channel, wherein the control channel is not adapted to carry voice or data traffic, and wherein at least one of the first or second wireless transceivers is operable to combine a plurality of bearer channels onto a single data channel and allocate a plurality of radio channels based on a required data rate. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37)
- a first wireless transceiver located at a first site, said first wireless transceiver to receive data communication signal from a first digital communication path, and being operative to conduct wireless communications;
Specification