Performance through half-hopping and spatial diversity
First Claim
Patent Images
1. A cellular communication system comprising:
- A) a plurality of base sites, each having a service coverage area and each having a primary channel and plurality of non-primary channels; and
B) a base site of the plurality of base sites and a communication unit located within the service coverage area of the base site having means for exchanging a communicated signal on a primary channel having a frequency hopped uplink and a non-frequency hopped downlink or a non-primary channel having a frequency hopped uplink and a frequency hopped downlink.
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Abstract
A cellular communication system (50) is offered wherein communicated signals are exchanged on an indexed uplink communication resource and a non-indexed downlink communication resource. The non-indexed downlink communication format allows communication units to identify proximate service providers without knowledge of the index algorithm. The indexed signal transmitted by a user communication unit improves noise immunity in a signal transceived on the uplink. Signal quality is improved on the downlink through the use of selectable diversity antennas (22 or 23).
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Citations
21 Claims
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1. A cellular communication system comprising:
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A) a plurality of base sites, each having a service coverage area and each having a primary channel and plurality of non-primary channels; and B) a base site of the plurality of base sites and a communication unit located within the service coverage area of the base site having means for exchanging a communicated signal on a primary channel having a frequency hopped uplink and a non-frequency hopped downlink or a non-primary channel having a frequency hopped uplink and a frequency hopped downlink. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 17, 18, 19, 20, 21)
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13. A method of improving signal quality of a communicated signal exchanged within a cellular communication system between a base site and a communication unit, such method comprising the steps of:
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A) transmitting, by the communication unit, a communicated signal to the base site on a frequency hopped uplink of a communication resource; and B) receiving, by the communication unit, the communicated signal from the base site on either a non-frequency hopped downlink of the communication resource if the downlink is a primary radio channel or a frequency hopped downlink of the communication resource, if the downlink is a non-primary channel. - View Dependent Claims (14, 15, 16)
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Specification