Method and apparatus for facilitating a retransmission of missed messages in a wireless messaging system
AssigneeMotorola, Inc.
InventorsNiranjan Nath Segal, Robert Louis Breeden
Life of this patent
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Abstract
A subscriber unit (122) in a wireless messaging system records (404) a message sequence number corresponding to a message received, and an indication of whether the subscriber unit acknowledged the message. Upon registration with a two-way portion (104) of the wireless messaging system, the subscriber unit reports (532, 526), to the two-way portion, information of a type selected from (a) missing message sequence numbers, and (b) message sequence numbers corresponding to messages received and not acknowledged, the type selected (524) being that which generates a smaller amount of inbound traffic.
Claims14
A method for facilitating a retransmission of missed messages in a wireless messaging system having a two-way portion and a one-way portion, the method comprising the steps of:
- recording, by a subscriber unit, a message sequence number corresponding to a message received, and an indication of whether the subscriber unit acknowledged the message;
- and
- reporting, by the subscriber unit to the two-way portion upon registration with the two-way portion, information of a type selected from (a) missing message sequence numbers, and (b) message sequence numbers corresponding to messages received and not acknowledged, the type selected being that which generates a smaller amount of inbound traffic.
A subscriber unit for facilitating a retransmission of missed messages in a wireless messaging system having a two-way portion and a one-way portion, the subscriber unit comprising:
- a receiver for receiving messages;
- a processing system coupled to the receiver for processing the messages;
- and
- a transmitter coupled to the processing system for acknowledging the messages,
- wherein the processing system is programmed to:
- record a message sequence number corresponding to a message received, and an indication of whether the subscriber unit acknowledged the message;
- and
- report, to the two-way portion upon registration with the two-way portion, information of a type selected from (a) missing message sequence numbers, and (b) message sequence numbers corresponding to messages received and not acknowledged, the type selected being that which generates a smaller amount of inbound traffic.
A controller for facilitating a retransmission of missed messages in a wireless messaging system having a two-way portion and a one-way portion, the controller comprising:
- a network interface for receiving a message from a message originator;
- a processing system coupled to the network interface for processing the message;
- a base station interface coupled to the processing system for controlling a base transmitter to transmit the message and for cooperating with a base receiver to receive an acknowledgment to the message,
- wherein the processing system is programmed to:
- receive, from a subscriber unit when registering with the two-way portion, information of a type selected from (a) missing message sequence numbers, and (b) message sequence numbers corresponding to messages received and not acknowledged;
- and
- determine, from the information of either type, which of a list of non-acknowledged messages should be retransmitted to the subscriber unit.
Dependencies are inferred from the claim text.