Allocating channels for a wireless link between a central terminal and a subscriber terminal of a wireless telecommunications system
First Claim
1. A wireless telecommunications system comprising an interface mechanism for allocating a radio slot for a wireless link between a central terminal and a subscriber terminal within said wireless telecommunications system, one or more frequency channels being provided to support wireless links between the central terminal and the subscriber terminal, and being arranged to provide a plurality of radio slots, the interface mechanism comprising:
- a radio manager, responsive to an indication that a call is to be established, for issuing an allocation request message to a radio slave within the central terminal requesting that radio slave to allocate a radio slot for the call; and
a radio slave, within the central terminal and associated with each frequency channel, for managing the allocation of radio slots within that frequency channel and arranged to be responsive to receipt of the allocation request message from the radio manager, to reference a record identifying available radio slots within the frequency channel in order to select, if available, a radio slot within that frequency channel for allocation to the call, to issue a response message to the radio manager indicating that a radio slot has been selected, and to update its record of available radio slots accordingly.
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0 Petitions
Accused Products
Abstract
The present invention provides a wireless telecommunications system comprising an interface mechanism for allocating a radio slot for a wireless link between a central terminal and a subscriber terminal within said wireless telecommunications system. At least one frequency channel is provided to support wireless links between the central terminal and the subscriber terminal, and a frequency channel is arranged to provide a plurality of radio slots. The interface mechanism comprises a radio manager, responsive to an indiction that a call is to be established, for issuing an allocation request message to a radio slave within the central terminal requesting that radio slave to allocate a radio slot for the call. Further, a radio slave, associated with a frequency channel, is provided to be responsive to receipt of the allocation request message from the radio manager, to reference a record identifying available radio slots within the frequency channel in order to select, if available, a radio slot within that frequency channel for allocation to the call, and to issue a response message to the radio manager indicating that a radio slot has been selected.
44 Citations
35 Claims
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1. A wireless telecommunications system comprising an interface mechanism for allocating a radio slot for a wireless link between a central terminal and a subscriber terminal within said wireless telecommunications system, one or more frequency channels being provided to support wireless links between the central terminal and the subscriber terminal, and being arranged to provide a plurality of radio slots, the interface mechanism comprising:
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a radio manager, responsive to an indication that a call is to be established, for issuing an allocation request message to a radio slave within the central terminal requesting that radio slave to allocate a radio slot for the call; and a radio slave, within the central terminal and associated with each frequency channel, for managing the allocation of radio slots within that frequency channel and arranged to be responsive to receipt of the allocation request message from the radio manager, to reference a record identifying available radio slots within the frequency channel in order to select, if available, a radio slot within that frequency channel for allocation to the call, to issue a response message to the radio manager indicating that a radio slot has been selected, and to update its record of available radio slots accordingly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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- 20. A radio manager for allocating a radio slot for a wireless link between a central terminal and a subscriber terminal within said wireless telecommunications system, at least one frequency channel being provided to support wireless links between the central terminal and the subscriber terminal, and a frequency channel being arranged to provide a plurality of radio slots, the radio manager being configured to be operable to receive an indication that a call is to be established, to issue an allocation request message to a radio slave within the central terminal requesting that radio slave to allocate a radio slot for the call, and to receive a response message from the radio slave indicating that a radio slot has been selected, wherein, if an indication is received that the radio slave addressed by the allocation request message does not have a radio slot available for the call, the radio manager is configured to be operable to re-issue the allocation request message to another radio slave associated with another frequency channel.
- 25. A radio slave for managing a frequency channel associated with the radio slave and provided to support a wireless link between a central terminal and a subscriber terminal within said wireless telecommunications system, the frequency channel being arranged to provide a plurality of radio slots, the radio slave being configured to be operable to maintain a record identifying the status of radio slots within the associated radio frequency, to receive an allocation request message requesting the radio slave to allocate a radio slot for a call, to reference the record identifying available radio slots within the frequency channel in order to select, if available, a radio slot for allocation to the call, to issue a response message indicating that a radio slot has been selected, and to update its record of available radio slots accordingly.
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27. A method of allocating a radio slot for a wireless link between a central terminal and a subscriber terminal of a wireless telecommunications system, at least one frequency channel being provided to support wireless links between the central terminal and the subscriber terminal, and a frequency channel being arranged to provide a plurality of radio slots, the method comprising the steps of:
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employing a radio manager to respond to an indication that a call is to be established by issuing an allocation request message to a radio slave within the central terminal requesting that radio slave to allocate a radio slot for the call; employing a radio slave, within the central terminal and associated with a frequency channel, for managing the allocation of radio slots within that frequency channel, to respond to receipt of the allocation request message from the radio manager by referencing a record identifying available radio slots within the frequency channel in order to select, if available, a radio slot within that frequency channel for allocation to the call; issuing a response message to the radio manager indicating that a radio slot has been selected; and updating the record of available radio slots accordingly. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35)
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Specification