Apparatus and method for deferring cell update messages from user equipment
First Claim
1. A method of wireless communication operable on a user equipment (UE) for spreading out over time transmission from the UE of a cell update request from a transmission of a cell update request from another UE, the method comprising:
- receiving, while operating in a stand-by state, a broadcast message, wherein absence of an information element (IE) configured to turn on an enhanced uplink feature indicates the enhanced uplink feature is turned off;
not keeping an identifier corresponding to the enhanced uplink feature when the enhanced uplink feature is off;
detecting that a presence of the IE configured to turn on the enhanced uplink feature has changed to turn on the enhanced uplink feature; and
transmitting a signaling message in response to the detection, wherein the transmitting the signaling message follows a withholding of the transmitting until an occurrence of a predetermined event comprising a determination that one or more uplink data packets are ready for transmission on a data channel, and wherein the signaling message comprises a request for the identifier corresponding to the enhanced uplink feature.
1 Assignment
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Accused Products
Abstract
Various aspects of the present disclosure enable a plurality of mobile devices (UEs) within a cell to spread out in time their respective transmissions of signaling messages, such as cell update messages, when the network enables or disables enhanced uplink (EUL, sometimes referred to as high-speed uplink packet access or HSUPA) while the UE is in the CELL_FACH state, by changing SIB5 or SIB5bis. In this way, the network load may be reduced, and a network blockage that otherwise might result from large numbers of UEs simultaneously transmitting the cell update message can be avoided. According to one example, a network node may be configured to distribute CELL_UPDATE messages or procedures to UEs when the network node enables or disables EUL in CELL_FACH by changing SIB5 or SIB5bis over time to reduce the network load. According to another example, a UE may be configured for utilizing a random timer or back-off timer to defer cell updates.
15 Citations
32 Claims
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1. A method of wireless communication operable on a user equipment (UE) for spreading out over time transmission from the UE of a cell update request from a transmission of a cell update request from another UE, the method comprising:
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receiving, while operating in a stand-by state, a broadcast message, wherein absence of an information element (IE) configured to turn on an enhanced uplink feature indicates the enhanced uplink feature is turned off; not keeping an identifier corresponding to the enhanced uplink feature when the enhanced uplink feature is off; detecting that a presence of the IE configured to turn on the enhanced uplink feature has changed to turn on the enhanced uplink feature; and transmitting a signaling message in response to the detection, wherein the transmitting the signaling message follows a withholding of the transmitting until an occurrence of a predetermined event comprising a determination that one or more uplink data packets are ready for transmission on a data channel, and wherein the signaling message comprises a request for the identifier corresponding to the enhanced uplink feature. - View Dependent Claims (2, 3, 4, 5, 6, 25, 32)
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7. A user equipment (UE) configured for spreading out over time transmission from the UE of a cell update request from a transmission of a cell update request from another UE, the UE comprising:
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means for receiving, while operating in a stand-by state, a broadcast message, wherein absence of an information element (IE) configured to turn on an enhanced uplink feature indicates the enhanced uplink feature is turned off; means for not keeping an identifier corresponding to the enhanced uplink feature when the enhanced uplink feature is off; means for detecting that a presence of the IE configured to turn on the enhanced uplink feature has changed to turn on the enhanced uplink feature; and means for transmitting a signaling message in response to the detection, wherein the transmitting the signaling message follows a withholding of the transmitting until an occurrence of a predetermined event comprising a determination that one or more uplink data packets are ready for transmission on a data channel, and wherein the signaling message comprises a request for the identifier corresponding to the enhanced uplink feature. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A user equipment (UE) configured for spreading out over time transmission from the UE of a cell update request from a transmission of a cell update request from another UE, the UE comprising:
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at least one processor; a memory communicatively coupled to the at least one processor; and a wireless communication interface communicatively coupled to the at least one processor, wherein the at least one processor is configured to; receive, while operating in a stand-by state, a broadcast message, wherein absence of an information element (IE) configured to turn on an enhanced uplink feature indicates the enhanced uplink feature is turned off; not keep an identifier corresponding to the enhanced uplink feature when the enhanced uplink feature is off; detect that a presence of the IE configured to turn on the enhanced uplink feature has changed to turn on the enhanced uplink feature; and transmit a signaling message in response to the detection, wherein the transmitting the signaling message follows a withholding of the transmitting until an occurrence of a predetermined event comprising a determination that one or more uplink data packets are ready for transmission on a data channel, and wherein the signaling message comprises a request for the identifier corresponding to the enhanced uplink feature. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A non-transitory computer-readable medium operable on a user equipment (UE) configured for spreading out over time transmission from the UE of a cell update request from a transmission of a cell update request from another UE, the non-transitory computer-readable medium comprising:
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instructions for causing a computer to receive, while operating in a stand-by state, a broadcast message, wherein absence of an information element (IE) configured to turn on an enhanced uplink feature indicates the enhanced uplink feature is turned off; instructions for not keeping an identifier corresponding to the enhanced uplink feature when the enhanced uplink feature is off; instructions for causing the computer to detect that a presence of the IE configured to turn on the enhanced uplink feature has changed to turn on the enhanced uplink feature; and instructions for causing the computer to transmit a signaling message in response to the detection, wherein the transmitting the signaling message follows a withholding of the transmitting until an occurrence of a predetermined event comprising a determination that one or more uplink data packets are ready for transmission on a data channel, and wherein the signaling message comprises a request for the identifier corresponding to the enhanced uplink feature. - View Dependent Claims (20, 21, 22, 23, 24)
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26. A method of wireless communication operable on a user equipment (UE), the method comprising:
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receiving, while operating in a stand-by state, a broadcast message, wherein absence of an information element (IE) configured to turn on an enhanced uplink feature indicates the enhanced uplink feature is turned off; not keeping an identifier corresponding to the enhanced uplink feature when the enhanced uplink feature is off; detecting that a presence of the IE configured to turn on the enhanced uplink feature has changed to turn on the enhanced uplink feature; and transmitting a signaling message in response to the detection, wherein the transmitting the signaling message follows a withholding of the transmitting until an occurrence of a predetermined event comprising a determination that one or more uplink data packets are ready for transmission on a data channel, and wherein the signaling message comprises a request for the identifier corresponding to the enhanced uplink feature. - View Dependent Claims (27, 28, 29, 30, 31)
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Specification