Method and apparatus for providing power control for CDMA dispatch services
First Claim
1. A method for providing power control for CDMA dispatch services comprising:
- receiving content for a dispatch group from a talking dispatch group member via a traffic channel;
when inactivity is detected in the dispatch content, sending an indication to the dispatch group that power control signaling by non-talking dispatch group members may be transmitted; and
in response to sending the indication, receiving power control signaling from a non-talking dispatch group member via the traffic channel.
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Accused Products
Abstract
To address the need to provide power control for listening participants of CDMA dispatch services, the concept of “shared channel signaling windows” for shared traffic channels (e.g., 110) is described. In one embodiment, the beginning of a signaling window is announced on the traffic channel and the remote units (e.g., MS 120) with the highest frame error rates compute the shortest transmit delays. For the duration of the window, remote units transmit their power control signaling according to their transmit delays. Thus, listening participants are given an opportunity, according to need, to perform power control signaling on the group traffic channel.
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Citations
29 Claims
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1. A method for providing power control for CDMA dispatch services comprising:
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receiving content for a dispatch group from a talking dispatch group member via a traffic channel;
when inactivity is detected in the dispatch content, sending an indication to the dispatch group that power control signaling by non-talking dispatch group members may be transmitted; and
in response to sending the indication, receiving power control signaling from a non-talking dispatch group member via the traffic channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for providing power control for CDMA dispatch services comprising:
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receiving dispatch group content via a traffic channel;
receiving an indication that power control signaling by non-talking dispatch group members may be transmitted; and
in response to receiving the indication, transmitting power control signaling via the traffic channel. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A base site comprising:
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a transmitter;
a receiver; and
a processor, coupled to the transmitter and the receiver, adapted to receive content for a dispatch group from a talking dispatch group member via the receiver and a traffic channel, adapted to send, via the transmitter, an indication to the dispatch group that power control signaling by non-talking dispatch group members may be transmitted, when inactivity is detected in the dispatch content, and adapted to receive power control signaling from a non-talking dispatch group member via the traffic channel in response to sending the indication.
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26. A remote unit comprising:
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a transmitter;
a receiver; and
a processor, coupled to the transmitter and the receiver, adapted to receive dispatch group content via the receiver and a traffic channel, adapted to receive an indication that power control signaling by non-talking dispatch group members may be transmitted, and adapted to transmit power control signaling via the transmitter and the traffic channel in response to receiving the indication. - View Dependent Claims (27, 28, 29)
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Specification