Automatically switching a TDMA radio affiliated with a FDMA site to a TDMA site
First Claim
Patent Images
1. A system comprising:
- a controller having code executing thereon for completing the functions of;
receiving a request message from a radio to affiliate with a talk group, said request message being received via a first site operating according to a first communication protocol, which site enables communication with the radio via the first communication protocol; and
detecting that the radio is capable of communicating using at least the first communication protocol and a second communication protocol; and
in response to determining that the talk group and each radio affiliated with the talk group are operating according to the second communication protocol, forwarding a modified group connect response message to the radio, wherein said modified group connect response message triggers the radio to attempt to re-affiliate to the talk group by sending a second request message via a second site operating according to the second communication protocol.
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Abstract
A method and system for dynamically triggering re-connection of a TDMA-capable radio to a TDMA-based talk group via a TDMA site. The dynamic re-connection is triggered by the group call controller when an initial request for connection to the TDMA-based talk group is made through an FDMA site by the TDMA-capable radio.
71 Citations
19 Claims
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1. A system comprising:
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a controller having code executing thereon for completing the functions of; receiving a request message from a radio to affiliate with a talk group, said request message being received via a first site operating according to a first communication protocol, which site enables communication with the radio via the first communication protocol; and detecting that the radio is capable of communicating using at least the first communication protocol and a second communication protocol; and in response to determining that the talk group and each radio affiliated with the talk group are operating according to the second communication protocol, forwarding a modified group connect response message to the radio, wherein said modified group connect response message triggers the radio to attempt to re-affiliate to the talk group by sending a second request message via a second site operating according to the second communication protocol. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. In a communication system having a controller that controls access to talk groups, a method comprising the steps of:
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receiving a request message from a radio to affiliate with a talk group, said request message being received via a first site operating according to a first communication protocol, which site enables communication with the radio via the first communication protocol; and detecting that the radio is capable of communicating using at least the first communication protocol and a second communication protocol; and in response to determining that the talk group and each radio affiliated with the talk group are operating according to the second communication protocol, forwarding a modified group connect response message to the radio, wherein said modified group connect response message triggers the radio to attempt to re-affiliate to the talk group by sending a second request message via a second site operating according to the second communication protocol. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. In a wireless radio that is time division multiple access (TDMA)-capable, a method comprising the steps of:
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transmitting, to a frequency division multiple access (FDMA) site, a request to be affiliated with a talk group, said request transmitted according to an FDMA protocol; receiving a response message indicating that an affiliation of the radio to the talk group has been initiated via the FDMA site; and when the response message is a modified response message, which includes a prompt to re-affiliate the radio to the talk group via a TDMA site; automatically locating and checking for access to a TDMA site that is within communication range of the radio; and when the TDMA site is located, dynamically transmitting a new request to re-affiliate the radio to the talk group via the TDMA site using TDMA communication protocol. - View Dependent Claims (17, 18, 19)
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Specification