Fast switching of forward link in wireless system
First Claim
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1. A subscriber unit comprising:
- a memory;
a processor coupled with the memory, the processor to process control information received on a shared channel;
wherein the control information is received in a time slot of the shared channel;
wherein the subscriber unit is to receive from a base station, a list of active channels for the respective subscriber unit as assigned by the base station, based on the respective subscriber unit having been designated as active or standby during an epoch by the base station;
wherein the control information includes an indication of code channels assigned to the subscriber unit;
wherein the subscriber unit is to determine a list of channels to which to listen during a subsequent traffic epoch;
wherein the subscriber unit is to further receive, at a predetermined time interval and after reception of the control information, the code channels indicated by the control information; and
wherein the subscriber unit is to recover packet data from the control channels indicated by the control information.
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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
18 Claims
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1. A subscriber unit comprising:
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a memory; a processor coupled with the memory, the processor to process control information received on a shared channel; wherein the control information is received in a time slot of the shared channel; wherein the subscriber unit is to receive from a base station, a list of active channels for the respective subscriber unit as assigned by the base station, based on the respective subscriber unit having been designated as active or standby during an epoch by the base station; wherein the control information includes an indication of code channels assigned to the subscriber unit; wherein the subscriber unit is to determine a list of channels to which to listen during a subsequent traffic epoch; wherein the subscriber unit is to further receive, at a predetermined time interval and after reception of the control information, the code channels indicated by the control information; and wherein the subscriber unit is to recover packet data from the control channels indicated by the control information. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method comprising:
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processing, by a subscriber unit, control information received on a shared channel; wherein the control information is received in a time slot of the shared channel; wherein the subscriber unit is to receive from a base station, a list of active channels for the respective subscriber unit as assigned by the base station, based on the respective subscriber unit having been designated as active or standby during an epoch by the base station; wherein the control information includes an indication of code channels assigned to the subscriber unit; wherein the subscriber unit is to determine a list of channels to which to listen during a subsequent traffic epoch; wherein the subscriber unit is to further receive, at a predetermined time interval and after reception of the control information, the code channels indicated by the control information; and wherein the subscriber unit is to recover packet data from the control channels indicated by the control information. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A base station comprising:
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a memory; a processor coupled with the memory, the processor to send control information to a subscriber unit on a shared channel; wherein the base station is to send to the subscriber unit, a list of active channels for the respective subscriber unit as assigned by the base station, based on the respective subscriber unit having been designated as active or standby during an epoch by the base station; wherein the control information is sent in a time slot of the shared channel; wherein the control information includes an indication of code channels assigned to the subscriber unit; and wherein the base station is to transmit packet data on the code channels indicated by the control information at a predetermined time interval after transmission of the control information. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification