Supporting a multicast session within a wireless communications network
First Claim
1. A method of monitoring a downlink control channel, comprising:
- adjusting a rate at which an access terminal monitors the downlink control channel in expectation of receiving a message advertising a given multicast session, wherein the message advertising the given multicast session is a periodic message and wherein the adjusting is performed in expectation of receiving the message at an asynchronous or aperiodic time that is earlier than and deviates from a next periodic transmission of the message; and
receiving the message advertising the given multicast session on the downlink control channel.
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Accused Products
Abstract
Methods of supporting a multicast session within a wireless communications network are provided. An access terminal adjusts a monitoring rate of a downlink control channel either (i) after transmitting a multicast registration message in a sector that is not supporting a given multicast session or (ii) after receiving an announce message announcing the given multicast session. An access network anticipates the monitoring rate adjustment, and sends a message advertising the given multicast session (e.g., a broadcast overhead message (BOM)) based on the adjusted monitoring rate. Further, the announce message sent by the access network can be sent on the downlink control channel, and can be sent based on expected paging cycles, or monitoring rates, of the downlink control channel at one or more access terminals within the network prior to the monitoring rate adjustment.
15 Citations
68 Claims
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1. A method of monitoring a downlink control channel, comprising:
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adjusting a rate at which an access terminal monitors the downlink control channel in expectation of receiving a message advertising a given multicast session, wherein the message advertising the given multicast session is a periodic message and wherein the adjusting is performed in expectation of receiving the message at an asynchronous or aperiodic time that is earlier than and deviates from a next periodic transmission of the message; and receiving the message advertising the given multicast session on the downlink control channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of scheduling a message advertising a given multicast session, comprising:
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receiving, from an access terminal, a multicast registration message, the multicast registration message requesting registration of the access terminal to a given multicast session; determining when to send the message advertising the given multicast session based on a first rate that the access terminal is expected to monitor a downlink control channel after the receiving step, wherein the message advertising the given multicast session is a periodic message and wherein the first rate is different than a second rate that the access terminal is expected to monitor the downlink control channel before the receiving step; and transmitting the message advertising the given multicast session to the access terminal on the downlink control channel at an asynchronous or aperiodic time that is earlier than and deviates from a next periodic transmission of the message based on the determining step. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. An access terminal, comprising:
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means for adjusting a rate at which the access terminal monitors a downlink control channel in expectation of receiving a message advertising a given multicast session, wherein the message advertising the given multicast session is a periodic message and wherein the adjusting is performed in expectation of receiving the message at an asynchronous or aperiodic time that is earlier than and deviates from a next periodic transmission of the message; and means for receiving the message advertising the given multicast session on the downlink control channel. - View Dependent Claims (33, 34, 35, 36, 37, 38)
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39. An access network, comprising:
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means for receiving, from an access terminal, a multicast registration message, the multicast registration message requesting registration of the access terminal to a given multicast session; means for determining when to send a message advertising the given multicast session based on a first rate that the access terminal is expected to monitor a downlink control channel after the means for receiving receives the multicast registration message, wherein the message advertising the given multicast session is a periodic message and wherein the first rate is different than a second rate that the access terminal is expected to monitor the downlink control channel before the means for receiving receives the multicast registration message; and means for transmitting the message advertising the given multicast session to the access terminal on the downlink control channel at an asynchronous or aperiodic time that is earlier than and deviates from a next periodic transmission of the message based on the determination of the means for determining. - View Dependent Claims (40, 41, 42, 43)
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44. An access terminal, comprising:
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logic configured to adjust a rate at which the access terminal monitors a downlink control channel in expectation of receiving a message advertising a given multicast session, wherein the message advertising the given multicast session is a periodic message and wherein the adjusting is performed in expectation of receiving the message at an asynchronous or aperiodic time that is earlier than and deviates from a next periodic transmission of the message; and logic configured to receive the message advertising the given multicast session on the downlink control channel. - View Dependent Claims (45, 46, 47, 48, 49, 50)
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51. An access network, comprising:
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logic configured to receive, from an access terminal, a multicast registration message, the multicast registration message requesting registration of the access terminal to a given multicast session; logic configured to determine when to send a message advertising the given multicast session based on a first rate that the access terminal is expected to monitor a downlink control channel after the logic configured to receive receives the multicast registration message, wherein the message advertising the given multicast session is a periodic message and wherein the first rate is different than a second rate that the access terminal is expected to monitor the downlink control channel before the logic configured to receive receives the multicast registration message; and logic configured to transmit the message advertising the given multicast session to the access terminal on the downlink control channel at an asynchronous or aperiodic time that is earlier than and deviates from a next periodic transmission of the message based on the determination of the logic configured to determine. - View Dependent Claims (52, 53, 54, 55)
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56. A non-transitory computer-readable medium comprising instructions, which, when executed by an access terminal within a wireless communications system, cause the access terminal to perform operations, the instructions comprising:
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program code to adjust a rate at which the access terminal monitors a downlink control channel in expectation of receiving a message advertising a given multicast session, wherein the message advertising the given multicast session is a periodic message and wherein the adjusting is performed in expectation of receiving the message at an asynchronous or aperiodic time that is earlier than and deviates from a next periodic transmission of the message; and program code to receive the message advertising the given multicast session on the downlink control channel. - View Dependent Claims (57, 58, 59, 60, 61, 62)
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63. A non-transitory computer-readable medium comprising instructions, which, when executed by an access network within a wireless communications system, cause the access network to perform operations, the instructions comprising:
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program code to receive, from an access terminal, a multicast registration message, the multicast registration message requesting registration of the access terminal to a given multicast session; program code to determine when to send a message advertising the given multicast session based on a first rate that the access terminal is expected to monitor a downlink control channel after the program code to receive receives the multicast registration message, wherein the message advertising the given multicast session is a periodic message and wherein the first rate is different than a second rate that the access terminal is expected to monitor the downlink control channel before the program code to receive receives the multicast registration message; and program code to transmit the message advertising the given multicast session to the access terminal on the downlink control channel at an asynchronous or aperiodic time that is earlier than and deviates from a next periodic transmission of the message based on the determination of the program code to determine. - View Dependent Claims (64, 65, 66, 67)
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68. A method of monitoring a downlink control channel, comprising:
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adjusting a rate at which an access terminal monitors the downlink control channel in expectation of receiving a message advertising a given multicast session; and receiving the message advertising the given multicast session on the downlink control channel, wherein the adjusting occurs responsive to an uplink transmission configured to prompt an access network to transmit the message on the downlink control channel, and wherein the adjusted rate permits the access network to transmit the message in response to the uplink transmission on the downlink control channel to the access terminal at an earlier point in time relative to the rate prior to the adjusting.
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Specification