Method and system of data transmission and reception in a mobile station within a radio telecommunications system
First Claim
1. A method of reducing power consumption in a mobile station operating within a radio telecommunications system having a base station and a plurality of mobile stations assigned to a plurality of sleep groups, said method comprising the steps of:
- receiving at said mobile station, a repetitively broadcast overhead message train transmitted on a base station control channel, said message train including a sleep message containing one or more data fields, said data fields including information indicating when mobile stations assigned to each sleep group of said plurality of sleep groups are to switch to a sleep mode and to an awake mode effective during a time period until a start of a next repetition of said broadcast message train; and
operating said receiving mobile station in said sleep mode and said awake mode in accordance with said information contained in said data fields during the time period until the start of the next repetition of said broadcast message train.
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Accused Products
Abstract
A method and system of transmitting and receiving data in a mobile telecommunications system which reduces power consumption in mobile stations operating within the system. Mobile stations are divided into a plurality of sleep groups and a sleep message, which is transmitted in the control channel Overhead Message Train (OMT) as a Global Action Overhead Message (GAOM) is introduced. The bits of the sleep message contain data fields which indicate to mobile stations in each of the sleep groups when to monitor the control channel on which the sleep message was transmitted.
133 Citations
58 Claims
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1. A method of reducing power consumption in a mobile station operating within a radio telecommunications system having a base station and a plurality of mobile stations assigned to a plurality of sleep groups, said method comprising the steps of:
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receiving at said mobile station, a repetitively broadcast overhead message train transmitted on a base station control channel, said message train including a sleep message containing one or more data fields, said data fields including information indicating when mobile stations assigned to each sleep group of said plurality of sleep groups are to switch to a sleep mode and to an awake mode effective during a time period until a start of a next repetition of said broadcast message train; and operating said receiving mobile station in said sleep mode and said awake mode in accordance with said information contained in said data fields during the time period until the start of the next repetition of said broadcast message train. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of reducing power consumption in a mobile station operating within a radio telecommunications system having one or more base stations and a plurality of mobile stations, said method comprising the steps of:
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assigning each of said plurality of mobile stations having a next to the last bit equal to 0 in its Mobile Station Identification Number to a first group and each of said plurality of mobile stations having a next to the last bit equal to 1 in its Mobile Station Identification Number to a second group; receiving at each of said plurality of mobile stations, a sleep message transmitted in a repetitively broadcast overhead message train of a base station control channel, said sleep message comprising a first data field; operating said receiving mobile stations assigned to said first group in an awake mode for a first time interval effective during a time period until a start of a next repetition of the overhead message train as determined by said first data field; and operating said receiving mobile stations assigned to said second group in a sleep mode for the first time interval effective during the time period until the start of the next repetition of the overhead message train as determined by said first data field. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of reducing power consumption in a mobile station operating within a radio telecommunications system having a plurality of mobile stations assigned to a first or second group, and one or more base stations, said method comprising the steps of:
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receiving at one of said plurality of mobile stations, a local control message transmitted in a repetitively broadcast overhead message train of a base station control channel, said local control message including local control bits comprising Local Control Option Code bits and a first data field; determining that said local control message is a sleep message by examining the state of said Local Control Option Code bits; operating said mobile station in an awake mode for a first time interval effective during a time period until a start of a next repetition of the overhead message train as determined by said first data field if said mobile station is assigned to said first group; and operating said mobile station in a sleep mode for the first time interval effective during the time period until the start of the next repetition of the overhead message train as determined by said first data field if said mobile station is assigned to said second group. - View Dependent Claims (21, 22, 23, 24)
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25. A method of reducing power consumption in a mobile station operating within a radio telecommunications system having a plurality of mobile stations assigned to a first or second group, and one or more base stations, said method comprising the steps of:
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receiving at one of said plurality of mobile stations, a global action overhead message transmitted in a repetitively broadcast overhead message train of a base station control channel, said global action overhead message comprising Global Action Code bits and a first data field; determining that said global action overhead message is a sleep message by examining said Global Action Code bits; operating said mobile station in an awake mode for a first time interval effective during a time period until a start of a next repetition of the overhead message train as determined by said first data field if said mobile station is assigned to said first group; and operating said mobile station in a sleep mode for the first time interval effective during the time period until the start of the next repetition of the overhead message train as determined by said first data field if said mobile station is assigned to said second group. - View Dependent Claims (26, 27, 28, 29)
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30. In a mobile station operating within a radio telecommunications system having one or more base stations and a plurality mobile station assigned to a plurality of sleep groups, a system for reducing mobile station battery power consumption, said system comprising:
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means for receiving at said mobile station, a repetitively broadcast overhead message train transmitted on a base station control channel, said message train including a sleep message containing one or more data fields, said data fields including information indicating when mobile stations assigned to each sleep group of said plurality of sleep groups are to switch to a sleep mode and to an awake mode effective during a time period until a start of a next repetition of said message train; and means for operating said receiving mobile station in said sleep mode and said awake mode effective during the time period until the start of the next repetition of said message train in accordance with information contained in said data fields. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38)
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39. In a radio telecommunications system having one or more base stations and a plurality of mobile stations, a system for reducing power consumption in a mobile station, said system comprising:
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means for assigning each of said plurality of mobile stations having a next to the last bit equal to 0 in its Mobile Station Identification Number to a first group and each of said plurality of mobile stations having a next to the last bit equal to 1 in its Mobile Station Identification Number to a second group; means for receiving at each of said plurality of mobile stations, a sleep message transmitted in a repetitively broadcast overhead message train of a base station control channel, said sleep message comprising a first data field; means for operating said receiving mobile stations assigned to said first group in an awake mode for a first time interval effective during a time period until a start of a next repetition of the overhead message train as determined by said first data field; and means for operating said receiving mobile stations assigned to said second group in a sleep mode for the first time interval effective during the time period until the start of the next repetition of the overhead message train as determined by said first data field. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. In a radio telecommunications system having a plurality mobile stations assigned to a first or second group, and one or more base stations, a system for reducing power consumption in a mobile station, said system comprising:
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means for receiving at one of said plurality of mobile stations a local control message transmitted in a repetitively broadcast overhead message train of a base station control channel, the local control bits of said local control message comprising Local Control Option Code bits and a first data field; means for determining that said local control message is a sleep message-by examining the state of said Local Control Option Code bits; means for operating said mobile station in an awake mode for a first time interval effective during a time period until a start of a next repetition of the overhead message train as determined by said first data field if said mobile station is assigned to said first group; and means for operating said mobile station in a sleep mode for the first time interval effective during the time period until the start of the next repetition of the overhead message train as determined by said first data field if said mobile station is assigned to said second group. - View Dependent Claims (50, 51, 52, 53)
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54. In a radio telecommunications system having a plurality of mobile stations assigned to a first or second group, and one or more base stations, a system of reducing power consumption in a mobile station, said system comprising:
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means for receiving at one of said plurality of mobile stations, a global action overhead message transmitted in a repetitively broadcast overhead message train of a base station control channel, said global action overhead message comprising Global Action Code bits and a first data field; means for determining that said global action overhead message is a sleep message by examining said Global Action Code bits; means for operating said mobile station in an awake mode for a first time interval effective during a time period until a start of a next repetition of the overhead message train as determined by said first data field if said mobile station is assigned to said first group; and means for operating said mobile station in a sleep mode for the first time interval effective during the time period until the start of the next repetition of the overhead message train as determined by said first data field if said mobile station is assigned to said second group. - View Dependent Claims (55, 56, 57, 58)
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Specification