Method and apparatus for partial coverage zone selective call communication

• US 6,108,544 A
• Filed: 05/29/1997
• Issued: 08/22/2000
• Est. Priority Date: 05/29/1997
• Status: Expired due to Fees

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Ayerst, Douglas Irvin, Nelson, Leonard Edward, Dorenbosch, Jheroen Pieter
• Primary Examiner(s): TO, DORIS HA
• Application Number:
  US08/865,485
• Time in Patent Office: 1,181 Days
• Field of Search: 455/422, 455/434, 455/435, 455/436, 455/443, 455/444, 455/445, 455/454, 455/426, 455/31.1, 455/31.2, 455/31.3, 455/32.1, 455/38.1, 455/38.2, 455/38.4-38.5 , 455/507, 455/515, 455/517, 455/524-525, 455/550, 455/552, 455/553, 455/566, 455/575, 340/825.44, 340/311.1
• US Class Current: 340/7.27
• CPC Class Codes: H04W 84/022 One-way selective calling networks, e.g. wide area paging
• CPC Class Codes: H04W 88/185 Selective call encoders for paging networks, e.g. paging centre devices

Abstract

A communication system (10) has a plurality of selective call transceivers (30) which operate as one-way selective call receivers in one-way coverage zones (16) where no registration is required or operate as selective call transceivers in two-way coverage zones (36) where registration is required or operate in one-and-a-half way zones where registration is attempted but not required for the selective call transceiver to receive outbound messages. The system further comprises a plurality of outbound transmitters (17, 18, and 19) covering one-way coverage zones (12, 14, and 16 respectively) and a plurality of base receivers (37, 38, and 39) and transmitters (11, 13, and 15) covering two-way coverage zones (32, 34, and 36 respectively). The one-and-half-way zone is primarily a mode of operation useful in areas having "spotty" inbound coverage and is not necessarily designated by a geographic location.

Claims

1. A method of operating a selective call device in multiple coverage zones within a messaging system that provides for a two-way area, a one-way area, and a one-and-a-half way area, comprising the steps at the selective call device of:

requiring registration before enabling receipt of outbound messages and before enabling a transmission of inbound messages from the selective call device when the selective call device is within a two-way area; and

attempting registration while enabling receipt of outbound messages, and inhibiting the transmission of inbound messages from the selective call device when the selective call device is within a one-and-a-half way area.

2. The method of claim 1, wherein the method further comprises the steps of disabling the transmission of registration requests while enabling the receipt of outbound messages, and inhibiting the transmission of inbound messages from the selective call device when the selective call device is in a one-way area unless the messaging system specifically requests the selective call device to transmit an inbound signal.

3. The method of claim 1, wherein the method further comprises the steps at the selective call device of receiving repeated copies of fragments of a message over an extended period of time without acknowledging receipt of each fragment.

4. A method of operating a selective call transceiver in multiple coverage zones within a messaging system that provides for a two-way area, a one-way area, and a one-and-a-half way area, comprising the steps at the selective call transceiver of:

requiring registration, enabling transmissions of acknowledgments of receipt of outbound messages, and receiving acknowledgments from the messaging system of inbound messages from the selective call transceiver when the selective call transceiver is within a two-way area; and

attempting registration while enabling receipt of acknowledgments from the messaging system of inbound messages from the selective call transceiver without requiring the transmission of acknowledgments of receipt of outbound messages when the selective call transceiver is within a one-and-a-half way area.

5. The method of claim 4, wherein the method further comprises the steps of inhibiting the transmission of registration requests and inhibiting the transmission of acknowledgments of receipt of outbound messages, and not requiring acknowledgments from the messaging system of receipt of inbound messages from the selective call transceiver when the selective call transceiver is in a one-way zone.

6. The method of claim 5, wherein the method further comprises the step of notifying the user of the selective call transceiver that the two-way function of the selective call transceiver is disabled when the selective call transceiver is in a one-way zone.

7. The method of claim 5, wherein the method further comprises the step of disabling the transmission of inbound messages from the selective call transceiver when the selective call transceiver is in a one-way zone.

8. The method of claim 4, wherein the method further comprises the steps at a messaging system of:

maintaining a preferred one-way zone list and a one-and-a-half way zone list matching a list in the selective call transceiver;

seeking the presence of a selective call transceiver in a two-way zone;

continuing two-way communication if the selective call transceiver is found in the two-way zone;

sending one-way outbound messages to the selective call transceiver to a one-way zone if a user directed messages to the one-way zone; and

sending one-way outbound messages to the selective call transceiver to the zone or zones designated in the preferred one-way zone list when the messaging system is unsuccessful in delivering a message in the two-way zone or when the controller fails to locate the selective call transceiver in a two-way zone.

9. The method of claim 8, wherein the method further comprises the step of generating a statistically derived preferred one-way zone list at the two-way selective call transceiver'"'"'s location and updating the preferred one-way zone list at the controller when the selective call transceiver enters a two-way zone.

10. The method of claim 8, wherein a preferred zone list is updated with information received over-the-air after successful registration by the selective call transceiver.

11. A selective call transceiver that operates in multiple coverage zones within a messaging system having a two-way area, a one-way area, and a one-and-a-half way area, the selective call transceiver comprising:

a selective call receiver coupled to a decoder and a controller;

a selective call transmitter coupled to the controller and an encoder; and

a memory coupled to the controller, wherein the controller is programmed in a two-way area to require the selective call transmitter to transmit registration requests and to require the selective call receiver to receive a registration grant from the messaging system before enabling the receipt of outbound messages and before enabling the transmission of inbound messages and further programmed to transmit registration requests while enabling outbound message reception and inhibiting the transmission of inbound messages when the selective call transceiver is within a one-and-a-half way area until registration is granted, wherein the inbound transmission of inbound messages would no longer be inhibited.

12. The selective call transceiver of claim 11, wherein the controller is further programmed to allow the selective call transceiver to operate in a one-and-a-half way area as if the selective call transceiver were in a two-way area after registration is granted to the selective call receiver.

13. The selective call transceiver of claim 11, wherein the controller is further programmed to inhibit the transmissions of registration requests by the selective call transmitter, and further programmed to have the selective call receiver receive outbound messages when the selective call transceiver is in a one-way zone.

14. The selective call transceiver of claim 13, wherein the controller further operates to notifying the user of the selective call transceiver that the two-way function of the selective call transceiver is disabled when the selective call transceiver is in a one-way zone.

15. The selective call transceiver of claim 13, wherein the controller further operates to disable the transmission of inbound messages from the selective call transceiver when the selective call transceiver is in a one-way zone.

16. A system controller for operation in a messaging system having selective call transceivers that can operate in a two-way area, a one-way area, or a one-and-a-half way area, the system controller comprising:

a memory; and

a processor programmed to operate in either a two-way mode, a one-way mode, or a one-and-a-half way mode based upon whether a particular transceiver is correspondingly in the two-way area, the one-way area or the one-and-a-half way area, wherein in a two-way mode the processor requires the particular transceiver to be registered before either directing the transmission of outbound messages to, or receiving and acknowledging inbound messages from the particular transceiver and wherein in a one-and-a-half way mode, the processor is programmed to direct the transmissions of outbound messages to the particular transceiver while enabling registration attempts by the particular transceiver, but further programmed to ignore inbound transmissions from the particular transceiver when the particular transceiver is not registered.

17. The system controller of claim 16, wherein in a one-way mode, the processor is programmed to direct transmissions of outbound messages to the particular transceiver, but further programmed to ignore inbound transmissions from the particular transceiver that is not registered.