Method and apparatus in a wireless messaging system for minimizing unnecessary communications with coverage zones of differing size and differing bandwidth capacity when entered by a mobile subscriber unit
First Claim
1. A method in a wireless messaging system having a plurality of coverage zones of differing size and of differing bandwidth capacity, the method for minimizing unnecessary communications with new zones entered by a subscriber unit moving through the wireless messaging system, the method comprising in the subscriber unit the steps of:
- acquiring communications with a first coverage zone of the wireless messaging system, the first coverage zone able to communicate at a first bandwidth;
maintaining communications with the first coverage zone when the subscriber unit is within range of both the first coverage zone and another coverage zone having a higher bandwidth, when the higher bandwidth is not needed by the subscriber unit;
determining thereafter, in response to a presence of a high-bandwidth message to be communicated with the subscriber unit, that the subscriber unit temporarily needs to communicate at a second bandwidth higher than the first bandwidth; and
in response, reacquiring communications with a second coverage zone different from the first coverage zone and able to communicate at the second bandwidth, wherein the second coverage zone is selected based upon a delivery latency of the second coverage zone.
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Accused Products
Abstract
A subscriber unit (122) acquires (604) communications with a first network (102) of a messaging system, the first network able to communicate at a first bandwidth. Thereafter, the subscriber unit determines (606) that it momentarily needs to communicate at a second bandwidth higher than the first bandwidth. In response, the subscriber unit reacquires (612) communications with a second network (115) different from the first network and able to communicate at the second bandwidth.
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Citations
22 Claims
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1. A method in a wireless messaging system having a plurality of coverage zones of differing size and of differing bandwidth capacity, the method for minimizing unnecessary communications with new zones entered by a subscriber unit moving through the wireless messaging system, the method comprising in the subscriber unit the steps of:
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acquiring communications with a first coverage zone of the wireless messaging system, the first coverage zone able to communicate at a first bandwidth; maintaining communications with the first coverage zone when the subscriber unit is within range of both the first coverage zone and another coverage zone having a higher bandwidth, when the higher bandwidth is not needed by the subscriber unit; determining thereafter, in response to a presence of a high-bandwidth message to be communicated with the subscriber unit, that the subscriber unit temporarily needs to communicate at a second bandwidth higher than the first bandwidth; and in response, reacquiring communications with a second coverage zone different from the first coverage zone and able to communicate at the second bandwidth, wherein the second coverage zone is selected based upon a delivery latency of the second coverage zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A subscriber unit in a wireless messaging system having a plurality of coverage zones of differing size and of differing bandwidth capacity, the subscriber unit for minimizing unnecessary communications with new zones entered by the subscriber unit as it moves through the wireless messaging system, the subscriber unit comprising:
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a receiver for receiving an outbound message from a portion of the messaging system; and a processing system coupled to the receiver for processing the outbound message, wherein the processing system is programmed to; acquire communications with a first coverage zone of the messaging system, the first coverage zone able to communicate at a first bandwidth; maintain communications with the first coverage zone when the subscriber unit is within range of both the first coverage zone and another coverage zone having a higher bandwidth, when the higher bandwidth is not needed by the subscriber unit; determine thereafter, in response to a presence of a high-bandwidth message to be communicated by the subscriber unit, that the subscriber unit temporarily needs to communicate at a second bandwidth higher than the first bandwidth; and in response, reacquire communications with a second coverage zone different from the first coverage zone and able to communicate at the second bandwidth, wherein the second coverage zone is selected based upon a delivery latency of the second coverage zone. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification