SYSTEM AND APPARATUS FOR DELIVERING EMERGENCY ALERT MESSAGES AS A SERVICE CONTENT IN A BROADCAST NETWORK
First Claim
1. A method for delivering emergency alert content in a forward link only (FLO) broadcast network, comprising:
- generating an alert record for inclusion in an overhead information symbol (OIS) channel, the alert record including an alert session identifier and information useful for receiving an alert data record in a multicast logic channel (MLC);
generating an alert message for broadcast in an MLC;
broadcasting an alert announcement in an embedded OIS message in a first superframe;
broadcasting the alert record in the OIS channel; and
broadcasting the alert message in the MLC.
1 Assignment
0 Petitions
Accused Products
Abstract
Embodiments enable mobile multimedia receiver devices to receive emergency alert messages from forward link only broadcast networks. Alert messages may be organized in alert sessions identified by an alert session ID. Alert record information may be included in the overhead information symbol (OIS) channel including the session ID and information enabling a receiver device to obtain an alert data message from an alert session in a multicast logic channel. The alert announcement may also be included in the service flow MLCs as an embedded OIS in a first superframe. The alert record may include the number of alert data packets the alert session so receiving devices can determine when they have received all data packets associated with a particular alert. By storing the alert session identifier in memory, receiving devices can ignore subsequent broadcasts of the same alert, thereby enabling them to conserve battery power.
32 Citations
82 Claims
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1. A method for delivering emergency alert content in a forward link only (FLO) broadcast network, comprising:
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generating an alert record for inclusion in an overhead information symbol (OIS) channel, the alert record including an alert session identifier and information useful for receiving an alert data record in a multicast logic channel (MLC); generating an alert message for broadcast in an MLC; broadcasting an alert announcement in an embedded OIS message in a first superframe; broadcasting the alert record in the OIS channel; and broadcasting the alert message in the MLC. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A server for use in a forward link only (FLO) broadcast network, comprising:
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a processor; and a network access port coupled to the processor and configured to couple the processor to a network, wherein the processor is configured with processor executable instructions to perform steps comprising; generating an alert record for inclusion in an overhead information symbol (OIS) channel, the alert record including an alert session identifier and information useful for receiving an alert data record in a multicast logic channel (MLC); generating an alert message for broadcast in an MLC; initiating broadcast of an alert announcement in an embedded OIS message in a first superframe; initiating broadcast of the alert record in the OIS channel; and initiating broadcast of the alert message in the MLC. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A receiver device configured to receive emergency alert content in broadcasts a forward link only (FLO) broadcast, comprising:
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a processor; a memory coupled to the processor; and a receiver coupled to the processor and configured to receive broadcasts from a FLO broadcast network, wherein the processor is configured with processor-executable instructions to perform steps comprising; receiving a broadcast from the FLO broadcast network; determining whether the broadcast includes an alert record; obtaining an alert session identifier from the alert record if it is determined that an OIS channel includes an alert record; determining whether the alert session identifier is stored in the memory; and receiving the alert message if it is determined that the alert session identifier is not stored in the memory. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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29. A communication system, comprising:
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a forward link only (FLO) broadcast network; and a receiver device, wherein the FLO broadcast network is configured to perform processes comprising; receiving an emergency alert; generating an alert record for inclusion in an overhead information symbol (OIS) channel, the alert record including an alert session identifier and information useful for receiving an alert data record in a multicast logic channel (MLC); generating an alert message for broadcast in an MLC; broadcasting an alert announcement in an embedded OIS message in a first superframe; broadcasting the alert record in the OIS channel; and broadcasting the alert message in the MLC, and wherein the receiving device comprises; a processor; a memory coupled to the processor; and a receiver coupled to the processor and configured to receive broadcasts from a FLO broadcast network, wherein the processor is configured with processor-executable instructions to perform steps comprising; receiving a broadcast from the FLO broadcast network; determining whether the broadcast includes an alert record; obtaining the alert session identifier from the alert record if it is determined that the OIS channel includes an alert record; determining whether the alert session identifier is stored in memory of the receiver device; and receiving the alert message if it is determined that the alert session identifier is not stored in memory. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A server for use in a forward link only (FLO) broadcast network, comprising:
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means for generating an alert record for inclusion in an overhead information symbol (OIS) channel, the alert record including an alert session identifier and information useful for receiving an alert data record in a multicast logic channel (MLC); means for generating an alert message for broadcast in an MLC; means for initiating broadcast of an alert announcement in an embedded OIS message in a first superframe; means for initiating broadcast of the alert record in the OIS channel; and means for initiating broadcast of the alert message in the MLC. - View Dependent Claims (43, 44, 45, 46, 47, 48)
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49. A receiver device configured to receive emergency alert content in broadcasts a forward link only (FLO) broadcast, comprising:
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means for receiving a broadcast from the FLO broadcast network; means for determining whether the broadcast includes an alert record; means for obtaining an alert session identifier from the alert record if it is determined that an OIS channel includes an alert record; means for determining whether the alert session identifier is stored in the memory; and means for receiving the alert message if it is determined that the alert session identifier is not stored in the memory. - View Dependent Claims (50, 51, 52, 53, 54, 55)
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56. A communication system, comprising:
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means for generating an alert record for inclusion in an overhead information symbol (OIS) channel, the alert record including an alert session identifier and information useful for receiving an alert data record in a multicast logic channel (MLC); means for generating an alert message for broadcast in an MLC; means for broadcasting an alert announcement in an embedded OIS message in a first superframe; means for broadcasting the alert record in the OIS channel; means for broadcasting the alert message in the MLC; means for receiving a broadcast from the FLO broadcast network; means for determining whether the broadcast includes an alert record; means for obtaining the alert session identifier from the alert record if it is determined that the OIS channel includes an alert record; means for determining whether the alert session identifier is stored in memory of the receiver device; and means for receiving the alert message if it is determined that the alert session identifier is not stored in memory. - View Dependent Claims (57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68)
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69. A computer program product, comprising:
a computer-readable storage medium comprising; at least one instruction for receiving an emergency alert via the network; at least one instruction for generating an alert record for inclusion in an overhead information symbol (OIS) channel, the alert record including an alert session identifier and information useful for receiving an alert data record in a multicast logic channel (MLC); at least one instruction for generating an alert message for broadcast in an MLC; at least one instruction for initiating broadcast of an alert announcement in an embedded OIS message in a first superframe; at least one instruction for initiating broadcast of the alert record in the OIS channel; and at least one instruction for initiating broadcast of the alert message in the MLC. - View Dependent Claims (70, 71, 72, 73, 74, 75)
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76. A computer program product, comprising:
a computer-readable storage medium comprising; at least one instruction for receiving a broadcast from the FLO broadcast network; at least one instruction for determining whether the broadcast includes an alert record; at least one instruction for obtaining an alert session identifier from the alert record if it is determined that an OIS channel includes an alert record; at least one instruction for determining whether the alert session identifier is stored in the memory; and at least one instruction for receiving the alert message if it is determined that the alert session identifier is not stored in the memory. - View Dependent Claims (77, 78, 79, 80, 81, 82)
Specification