Priority E911 call back during access class restrictions
First Claim
Patent Images
1. A wireless communication device comprising:
- a receiver configured to receive information about allowed access classes;
a processor coupled to the receiver, the processor configured to determine whether an emergency access class is allowed; and
a transmitter coupled to the processor, the transmitter configured to transmit an emergency call after the emergency access class is determined to be allowed,wherein the processor is configured to accept an incoming emergency call for a predefined time period after the transmission of the emergency call, further comprising;
a timing circuit coupled to the processor, the timing circuit configured to generate a start time of the predefined time period and to provide timing information to the processor; and
a memory circuit configured to store the start time, wherein the processor determines whether the predefined time period has elapsed based upon comparison between the start time in the memory circuit and the timing information received from the timing circuit, whereinthe timing circuit is configured to generate the start time upon receipt of a channel assignment.
4 Assignments
0 Petitions
Accused Products
Abstract
An apparatus (100) and method (200) for enabling a wireless communication device operating during access class restrictions to receive an incoming emergency call for a predefined time period are provided. After the wireless communication device (100) makes an emergency call to an emergency service center such as police (216), the wireless communication device (100) is enabled to respond to a return call from the emergency service center (218). The wireless communication device accepts the return call based upon the emergency access class information (408) and the priority level (410) of the return call.
-
Citations
17 Claims
-
1. A wireless communication device comprising:
-
a receiver configured to receive information about allowed access classes; a processor coupled to the receiver, the processor configured to determine whether an emergency access class is allowed; and a transmitter coupled to the processor, the transmitter configured to transmit an emergency call after the emergency access class is determined to be allowed, wherein the processor is configured to accept an incoming emergency call for a predefined time period after the transmission of the emergency call, further comprising; a timing circuit coupled to the processor, the timing circuit configured to generate a start time of the predefined time period and to provide timing information to the processor; and a memory circuit configured to store the start time, wherein the processor determines whether the predefined time period has elapsed based upon comparison between the start time in the memory circuit and the timing information received from the timing circuit, wherein the timing circuit is configured to generate the start time upon receipt of a channel assignment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method in a wireless communication device comprising:
-
monitoring a plurality of allowed access classes; determining whether an emergency access class is allowed; transmitting an emergency call upon determining that the emergency access class is allowed; and responding to paging for an incoming emergency call for a predefined time period after the transmission of the emergency call, wherein responding to paging for an incoming emergency call for a predefined time period after the transmission of the emergency call further comprises; monitoring whether the emergency call is assigned a channel; and
responding to the paging after the emergency call has been assigned a channel, whereinresponding to paging after the emergency call has been assigned a channel further comprises; monitoring a plurality of currently allowed access classes;
determining whether the emergency access class is currently allowed; andresponding to the paging upon determining that the emergency access class is allowed. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
-
Specification