System controlled asymmetrical automatic repeat request protocol method
First Claim
1. A system controlled asymmetrical automatic repeat request protocol method in a two-way wireless communication system, the two-way wireless communication system having a controller coupled to at least one transmitter and to at least one receiver for communication of a message from at least one selective call transceiver, the message having a length and the message divided into a plurality of packets, each packet transmitted during a time slot, comprising the steps of:
- receiving a reservation request signal from the at least one selective call transceiver, the reservation request signal including a measure of the length of the message; and
in response to the measure of the length of the message, the controller determining a total number of data units into which to divide the message for subsequent transmission by the at least one selective call transceiver, each data unit comprising at least one packet, the data unit being the smallest parcel of scheduled transmitted data that is acknowledgeable by the system.
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Accused Products
Abstract
A two-way wireless selective call communication system (20) using a synchronous time division multiplex communication protocol transmits messages divided into a plurality of data units (120, 126, and 128) from a plurality of selective call transceivers (32) to a paging terminal (33) during time slots (78), the number of data units and the time slots are set by the paging terminal controller (26) based on information, including size of the message information, received in an unscheduled transmission from each of the plurality of selective call transceivers. The paging terminal transmits to a selective call transceiver a multi-bit acknowledgment message having a one-bit acknowledgment for each of the plurality of data units. A selective call transceiver re-transmits data units not recovered by the terminal based upon content of the acknowledgment message. More than one selective call transceiver transmit during a one time slot set by the terminal.
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Citations
9 Claims
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1. A system controlled asymmetrical automatic repeat request protocol method in a two-way wireless communication system, the two-way wireless communication system having a controller coupled to at least one transmitter and to at least one receiver for communication of a message from at least one selective call transceiver, the message having a length and the message divided into a plurality of packets, each packet transmitted during a time slot, comprising the steps of:
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receiving a reservation request signal from the at least one selective call transceiver, the reservation request signal including a measure of the length of the message; and in response to the measure of the length of the message, the controller determining a total number of data units into which to divide the message for subsequent transmission by the at least one selective call transceiver, each data unit comprising at least one packet, the data unit being the smallest parcel of scheduled transmitted data that is acknowledgeable by the system. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. In a selective call transceiver, a method of transmitting a message, the message dividable into a plurality of data units, each of the plurality of data units having at least one packet, the message having a length, comprising the steps of:
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transmitting a signal containing at least a measure of the length of the message; receiving a reservation signal containing information representing at least a number of data units into which to divide the message and a packet size for the at least one packet; and in response to receiving the reservation signal, assigning an identification code from among a plurality of available reusable identification codes to each of the plurality of data units, and transmitting at least part of the message containing at least one data unit and an assigned identification code of the at least one data unit. - View Dependent Claims (9)
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Specification