Channel re-assignment method for time division multiple access (TDMA) trunked systems
First Claim
1. In a radio communication system controller, a method of providing extended use of a communication resource to a plurality of communication units, the method comprising the steps of:
- A) assigning a first communication resource to a first of the plurality of communication units to produce an assigned communication resource;
B) temporarily reserving, in response to a predetermined indicia received from the first communication unit during a first communication, the assigned communication resource such that a reserved communication resource is produced;
C) receiving on the reserved communication resource, from a second of the plurality of communication units, a request to transmit a second communication on the assigned communication resource; and
D) re-configuring, in response to the request, the assigned communication resource to allow transmission of the second communication on the assigned communication resource.
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Accused Products
Abstract
A radio communication system controller embodies the present invention by providing extended use (306) of a communication resource (106) to a plurality of communication units. The inventive method includes the steps of assigning (402) a first communication resource to a first communication unit, and then temporarily configuring (406) the assigned communication resource as a reserved resource. The controller then receives (408), from a second communication unit, a request to transmit a second communication on the assigned communication resource. Lastly, the controller re-configures (412) the assigned communication resource to allow transmission of the second communication on the assigned communication resource.
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Citations
24 Claims
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1. In a radio communication system controller, a method of providing extended use of a communication resource to a plurality of communication units, the method comprising the steps of:
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A) assigning a first communication resource to a first of the plurality of communication units to produce an assigned communication resource; B) temporarily reserving, in response to a predetermined indicia received from the first communication unit during a first communication, the assigned communication resource such that a reserved communication resource is produced; C) receiving on the reserved communication resource, from a second of the plurality of communication units, a request to transmit a second communication on the assigned communication resource; and D) re-configuring, in response to the request, the assigned communication resource to allow transmission of the second communication on the assigned communication resource. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. In a radio communication unit which is a member of a communication group, a method of responding to a first communication transmitted on an assigned communication resource, via a second communication transmitted on the assigned communication resource, the radio communication unit being in communication with a radio communication controller, the method comprising the steps of:
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A) determining whether the first communication resource has been configured as a reserved communication resource; B) sending to the radio communication controller, on the reserved communication resource, a request-to-transmit the second communication; C) determining whether the reserved communication resource has been re-configured to accept the second communication; and D) transmitting, responsive to the step of determining whether the reserved communication resource has been re-configured, the second communication on the assigned communication resource. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. In a time-division multiple-access (TDMA) radio communication system, a method, for use in a radio system controller, of providing extended use of one of a plurality of time-slots for communication among a plurality of communication units belonging to a communication group, each of the time-slots having data fields for conveying information, the method comprising the steps of:
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A) assigning a first time-slot to a first of the plurality of communication units to produce an assigned time-slot; B) updating, in response to a predetermined indicia received from the first communication unit during a first communication, a slot descriptor field of the assigned time-slot, such that the assigned time-slot is reserved for use by members of the communication group; C) receiving, on the reserved time-slot from a second communication unit, a request to transmit a second communication; D) re-configuring, in response to the request, the reserved time-slot to allow transmission of the second communication on the assigned time-slot; and E) measuring a transmission parameter for the second communication unit. - View Dependent Claims (18, 19, 20, 21)
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22. In a time-division multiple-access (TDMA) radio communication unit which is a member of a communication group, a method of responding to a first communication transmitted on an assigned time-slot via a second communication transmitted on the assigned time-slot, the radio communication unit being in communication with a radio communication controller, the method comprising the steps of:
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A) determining whether the first time-slot has been configured as a reserved time-slot; B) sending to the radio communication controller, on the reserved time-slot, a request-to-transmit the second communication; C) determining whether the reserved time-slot has been reconfigured to accept the second communication; D) transmitting, responsive to the step of determining whether the reserved time-slot has been re-configured, the second communication on the assigned time-slot; and E) determining a time advance value for the communication unit based on a present transmission parameter for the communication unit. - View Dependent Claims (23, 24)
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Specification