Method and apparatus for reducing call setup time
First Claim
Patent Images
1. A method for a radio access network (RAN) to reduce call setup time comprising:
- receiving a request from a calling unit for a communication service involving a remote unit;
transmitting to the remote unit via a paging channel a channel assignment message that assigns the remote unit to a traffic channel;
receiving from the remote unit a response to the channel assignment message, wherein the response indicates an availability of the remote unit and a remote unit RAN location;
indicating to the calling unit that the remote unit is available; and
proceeding with further call setup messaging with the remote unit.
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Accused Products
Abstract
To address the need for reducing call setup time without degrading the originator'"'"'s service, a RAN (103) transmits a channel assignment message in a paging slot monitored by a target unit (113). The target unit responds to this channel assignment page indicating its availability and location within the RAN coverage area. The RAN then indicates the availability of the target unit to the calling unit (120) that originated the service request. In this way, the originator is able to proceed with the communication service, while the target completes its call setup.
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Citations
20 Claims
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1. A method for a radio access network (RAN) to reduce call setup time comprising:
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receiving a request from a calling unit for a communication service involving a remote unit;
transmitting to the remote unit via a paging channel a channel assignment message that assigns the remote unit to a traffic channel;
receiving from the remote unit a response to the channel assignment message, wherein the response indicates an availability of the remote unit and a remote unit RAN location;
indicating to the calling unit that the remote unit is available; and
proceeding with further call setup messaging with the remote unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for a remote unit to reduce call setup time comprising:
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receiving from a radio access network (RAN) via a paging channel a channel assignment message that assigns the remote unit to a traffic channel;
transmitting to the RAN a response to the channel assignment message, wherein the response indicates an availability of the remote unit and a remote unit RAN location; and
proceeding with further call setup messaging on the traffic channel with the RAN. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A radio access network (RAN) comprising:
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a transmitter;
a receiver; and
a controller, coupled to the transmitter and receiver, adapted to receive a request from a calling unit for a communication service involving a remote unit, adapted to instruct the transmitter to transmit to the remote unit via a paging channel a channel assignment message that assigns the remote unit to a traffic channel, adapted to receive from the remote unit via the receiver a response to the channel assignment message, wherein the response indicates an availability of the remote unit and a remote unit RAN location, adapted to indicate to the calling unit that the remote unit is available, and adapted to proceed with further call setup messaging with the remote unit via the transmitter and receiver.
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20. A remote unit comprising:
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a receiver;
a transmitter; and
a processor, coupled to the transmitter and receiver, adapted to receive via the receiver, from a radio access network (RAN) via a paging channel, a channel assignment message that assigns the remote unit to a traffic channel, adapted to instruct the transmitter to transmit to the RAN a response to the channel assignment message, wherein the response indicates an availability of the remote unit and a remote unit RAN location, and adapted to proceed with further call setup messaging on the traffic channel with the RAN.
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Specification