Fast switching of forward link in wireless system
First Claim
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1. A base station comprising:
- a processor configured to dynamically assign code channels to a plurality of subscriber units on a time interval basis;
wherein the time interval is an integer number of slots;
the processor is further configured to transmit over at least one shared channel a control message to each assigned subscriber unit;
wherein each of the control messages are transmitted in at least one slot of the at least one shared channel at a same predetermined time interval prior to transmission of packet data for that assigned subscriber unit;
wherein each control message includes an indication of code channels assigned to that assigned subscriber unit.
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Abstract
A technique for distributing channel allocation information in a demand access communication system. Multiple access codes are used that have a defined code repeat period or code epoch. For each such epoch duration, a schedule of assignment of traffic channels to active terminals for each epoch is determined. For each terminal designated as active during the epoch, a list of active channels for such terminal unit is assigned. Prior to the start of each epoch, a channel set up message is sent on one of the forward link channels, such as a paging channel, indicating the lists of active channels for epochs of the associated traffic channel(s) that are to follow.
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Citations
17 Claims
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1. A base station comprising:
a processor configured to dynamically assign code channels to a plurality of subscriber units on a time interval basis;
wherein the time interval is an integer number of slots;
the processor is further configured to transmit over at least one shared channel a control message to each assigned subscriber unit;
wherein each of the control messages are transmitted in at least one slot of the at least one shared channel at a same predetermined time interval prior to transmission of packet data for that assigned subscriber unit;
wherein each control message includes an indication of code channels assigned to that assigned subscriber unit.- View Dependent Claims (2, 3, 4, 5, 6)
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7. A base station comprising:
a processor configured to dynamically assign code channels to a plurality of subscriber units on a time interval basis;
wherein the time interval is an integer number of slots;
the processor is further configured to transmit control information over at least one shared channel to each assigned subscriber unit;
wherein the control information is transmitted in at least one slot of the at least one shared channel at a same predetermined time interval prior to transmission of packet data for that assigned subscriber unit;
wherein the control information includes an indication of code channels assigned to that assigned subscriber unit.- View Dependent Claims (8, 9, 10, 11)
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12. A subscriber unit comprising:
a processor configured to dynamically receive code channels on a time interval basis;
wherein the time interval is an integer number of slots;
the processor is further configured to receive over at least one shared channel control messages;
wherein each of the control messages is received in at least one slot of the at least one shared channel at a same predetermined time interval prior to reception of packet data for the subscriber unit;
wherein each control message includes an indication of code channels assigned to the subscriber unit.- View Dependent Claims (13, 14, 15, 16, 17)
Specification