Method and apparatus for selectively-enabled diversity signaling in a radio communications system
AssigneeMotorola, Inc.
InventorAllen L. Davidson
Life of this patent
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Abstract
In a radio communications system, a selectively enabled time- and/or frequency-diverse signaling scheme is employed to improve signal quality. In particular, a method of exchanging a message between communication devices using a communications resource might include the step of transmitting a first portion of the message on a first frequency within the communications resource. After determining the quality of the communications resource to be unfavorable, a second portion of the message might be transmitted on the first frequency, and also re-transmitted on a second frequency and/or at a separate time.
Claims17
In a radio communications system, a method for exchanging a message between a plurality of communication devices using a communications resource, the method comprising the steps of:
- A) transmitting, from a first of the plurality of communication devices a first portion of the message on a first frequency within the communications resource;
- B) determining the quality of the communications resource;
- and
- C) when the quality of the communications resource is unfavorable, transmitting a second portion of the message on the first frequency and on a second frequency.
In a radio communications system, a method for exchanging a message between a plurality of communication devices using a communications resource, the method comprising the steps of:
- A) transmitting, from a first of the plurality of communication devices, a first portion of the message at a first time on a first frequency within the communications resource;
- B) determining the quality of the communications resource;
- and
- C) when the quality of the communications resource is unfavorable, transmitting a second portion of the message at a time corresponding to the first time on the first frequency and at a second time on the first frequency.
In a radio communications system, a method for exchanging a message between a plurality of communication devices using a communications resource, the method comprising the steps of:
- A) transmitting, from a first of the plurality of communication devices, a first portion of the message at a first time on a first frequency within the communications resource;
- B) determining the quality of the communications resource;
- and
- C) when the quality of the communications resource is unfavorable, transmitting a second portion of the message at a time associated with the first time on the first frequency and at a second time on a second frequency within the communications resource.
A data transmitter for transmitting a message to a communication device using a communications resource, the communications resource including a plurality of time division multiple access (TDMA) frames on a first frequency and a plurality of TDMA frames on a second frequency, the data transmitter comprising:
- means for transmitting a first portion of the message in a first timeslot within a first of the plurality of TDMA frames on the first frequency;
- means for determining the quality of the first timeslot;
- and
- means, operably coupled to the means for determining, for transmitting a second portion of the message in the first timeslot and in a second timeslot within a second of the plurality of TDMA frames on the second frequency.
Dependencies are inferred from the claim text.