Command set and procedure for synchronization of frequency hopping control clocks
First Claim
1. In a slow frequency hopping radio communications system of the type including a data communications controller having a hop clock and a hop table that incorporates carrier frequency data, duration data and length data and at least one remote radio unit connected to said data communications controller by an interface, said at least one remote radio unit including a radio controller means therein, transmitter means, and receiver means having a hop clock and a hop table that incorporates carrier frequency data, duration data and length data,a method for generating command signals to synchronize the said hop clocks of said data communications controller and said at least one remote radio unit comprising the steps of:
- Step 1;
transmitting command signals from said data communications controller to said radio controller means in said at least one remote radio unit to modify the hop table of said radio controller means in said at least one remote radio unit to make said hop table of said radio controller means in said at least one remote radio unit identical to the hop table of said data communications controller,Step 2;
transmitting a START HOP CLOCK command signal from said data communications controller to said radio controller means of said at least one remote radio unit to make the radio controller means in said at least one remote radio unit set the carrier frequency of the radio controller means to that of a designated hop table entry and to start the hop clock of the radio controller means in said at least one remote radio unit,Step 3;
transmitting a MODIFY HOP CLOCK command signal from said data communications controller to said radio controller means in said at least one remote radio unit to modify the duration of a hop as determined by the current hop table entry of said radio controller means on said at least one remote radio unit to have the same duration of the hop clock of said data communications controller, andStep 4;
transmitting a NOTIFY HOP signal from said data communications controller means in said at least one remote radio unit to said radio controller to cause said radio controller means in said at least one remote radio unit to generate an information signal for said data communications controller indicative of the difference in synchronism between said hop clock of said data communications controller and said hop clock of said radio controller means in said at least one remote radio unit.
1 Assignment
0 Petitions
Accused Products
Abstract
A wireless Local Area Network (LAN), in which each wireless adapter includes a controller and a transceiver which are located a finite distance from each other. Each controller and transceiver has their own hop clock and hop table. A data interface which includes a command set is defined between the controller and the transceiver. The command set includes commands and procedures for synchronizing the hop clocks and hop tables between the controller and the transceiver.
-
Citations
11 Claims
-
1. In a slow frequency hopping radio communications system of the type including a data communications controller having a hop clock and a hop table that incorporates carrier frequency data, duration data and length data and at least one remote radio unit connected to said data communications controller by an interface, said at least one remote radio unit including a radio controller means therein, transmitter means, and receiver means having a hop clock and a hop table that incorporates carrier frequency data, duration data and length data,
a method for generating command signals to synchronize the said hop clocks of said data communications controller and said at least one remote radio unit comprising the steps of: -
Step 1;
transmitting command signals from said data communications controller to said radio controller means in said at least one remote radio unit to modify the hop table of said radio controller means in said at least one remote radio unit to make said hop table of said radio controller means in said at least one remote radio unit identical to the hop table of said data communications controller,Step 2;
transmitting a START HOP CLOCK command signal from said data communications controller to said radio controller means of said at least one remote radio unit to make the radio controller means in said at least one remote radio unit set the carrier frequency of the radio controller means to that of a designated hop table entry and to start the hop clock of the radio controller means in said at least one remote radio unit,Step 3;
transmitting a MODIFY HOP CLOCK command signal from said data communications controller to said radio controller means in said at least one remote radio unit to modify the duration of a hop as determined by the current hop table entry of said radio controller means on said at least one remote radio unit to have the same duration of the hop clock of said data communications controller, andStep 4;
transmitting a NOTIFY HOP signal from said data communications controller means in said at least one remote radio unit to said radio controller to cause said radio controller means in said at least one remote radio unit to generate an information signal for said data communications controller indicative of the difference in synchronism between said hop clock of said data communications controller and said hop clock of said radio controller means in said at least one remote radio unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
Specification