| 发明名称 |
Method and apparatus for informing a radio of a group-call started while the radio was away from a control channel |
| 摘要 |
A radio affiliates, via a first channel, with at least one talk group the radio is interested in receiving calls from, sends a request to transmit location information on a separate revert channel, and receives a first grant time period to transmit location information on a particular revert channel. The radio moves at substantially the first grant time period, away from the first channel to the revert channel to transmit location information or request a second grant time period on the revert channel, receives an announcement on the revert channel during the first grant time period that a call of interest associated with the at least one talk group started while the radio was on the revert channel, determines an assigned traffic channel for the call of interest, and switches from the revert channel to the assigned traffic channel in order to receive the call of interest. |
| 申请公布号 |
US9271257(B2) |
申请公布日期 |
2016.02.23 |
| 申请号 |
US201314106622 |
申请日期 |
2013.12.13 |
| 申请人 |
MOTOROLA SOLUTIONS, INC. |
发明人 |
Chung Yueh Ching;Bohn Thomas B;Chowdhary Dipendra M;Khoo Hun Weng;Panpaliya Satyanarayan R;Teh Teik Choon |
| 分类号 |
H04W4/08;H04W4/10;H04W64/00;H04W76/00;H04W84/08 |
主分类号 |
H04W4/08 |
| 代理机构 |
|
代理人 |
Haas Kenneth A. |
| 主权项 |
1. A method comprising:
affiliating, by a radio via a first channel, with at least one talk group the radio is interested in receiving calls from; sending, by the radio, a request to transmit location information on a separate revert channel; receiving, by the radio, a first grant time period to transmit location information on a particular revert channel in response to the request; moving, by the radio at substantially the first grant time period, away from the first channel to the particular revert channel to at least one of transmit location information and transmit a request for a second grant time period on the particular revert channel; receiving, by the radio, an announcement on the particular revert channel after the first grant time period that a call of interest associated with the at least one talk group started while the radio was on the particular revert channel; determining, by the radio, an assigned traffic channel for the call of interest; and switching, by the radio, from the particular revert channel to the assigned traffic channel in order to receive the call of interest. |
| 地址 |
Schaumburg IL US |
