Distributing mobile stations across carriers of plural frequency bands
First Claim
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1. A method for use in a wireless communications network having plural frequency bands, comprising:
- in each of the plural frequency bands, identifying a predefined subset of carriers not used for access channels in the corresponding frequency band over which redirection messages are to be sent to idle mobile stations;
sending an access channel list to the idle mobile stations, said access channel list including at least one carrier from the predefined subset of carriers; and
sending the redirection messages over identified predefined subsets of carriers in the plural frequency bands to redirect the idle state mobile stations from one frequency band to another frequency band when the idle mobile stations select one of the carriers in the predefined subset from the access channel list.
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Abstract
Distribution of mobile stations across carriers of multiple frequency bands is achieved by using either a static distribution mechanism or a dynamic distribution mechanism. With the static distribution mechanism, a combination of a redirection message and a channel list is employed. With the dynamic distribution mechanism, the use of redirection messages is enabled on a dynamic basis for a predefined time interval.
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Citations
20 Claims
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1. A method for use in a wireless communications network having plural frequency bands, comprising:
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in each of the plural frequency bands, identifying a predefined subset of carriers not used for access channels in the corresponding frequency band over which redirection messages are to be sent to idle mobile stations; sending an access channel list to the idle mobile stations, said access channel list including at least one carrier from the predefined subset of carriers; and sending the redirection messages over identified predefined subsets of carriers in the plural frequency bands to redirect the idle state mobile stations from one frequency band to another frequency band when the idle mobile stations select one of the carriers in the predefined subset from the access channel list. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A base station comprising:
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an interface to mobile stations; and a processor to; detect a usage of an access channel on a carrier communicated between the base station and the mobile stations; in response to detecting the usage of the access channel crossing a threshold, enable transmission of redirection messages for a predefined time interval; and send the redirection messages over the carrier during the predefined time interval to the mobile stations. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. An article comprising at least one non-transitory computer-readable storage medium containing instructions that when executed cause a base station to:
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in each of plural frequency bands, identify a predefined subset of carriers not used for access channels in corresponding frequency band over which redirection messages are to be sent to idle mobile stations; sending an access channel list to idle mobile stations, said access channel list including at least one carrier from the predefined subset of carriers; and send the redirection messages over the identified predefined subsets of carriers in the plural frequency bands to redirect the idle state mobile stations from one frequency band to another frequency band when the idle mobile stations select one of the carriers in the predefined subset from the access channel list. - View Dependent Claims (19, 20)
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Specification