COMMUNICATIONS SYSTEM
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Abstract
A user communications device having active and idle states operates in a cellular communications network in which user communications devices communicate via network communications devices of cells of the network. History data identifying the cells in which the user communications device has been present whilst in the idle state is maintained. This history data is used by the user communications device or by a network communications device to enable adjustment of cell selection/reselection parameters for the user communications device in the active state.
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Citations
72 Claims
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1-68. -68. (canceled)
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69. A method performed by a user equipment (UE), the method comprising:
performing measurement logging in an idle mode for reporting to a base station at a later point in time, wherein logged measurements are sent in a logged measurement report when the UE is in a radio resource control (RRC) connected state, and wherein the logged measurement report comprises;
available UE measurements performed in idle for at least one of intra-frequency, inter-frequency, or inter-RAT;
time stamp; and
location information.
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70. A user equipment (UE) comprising:
a controller and transceiver circuitry, the controller being configured to control the user equipment to perform measurement logging in an idle mode for reporting to a base station at a later point in time, wherein logged measurements are sent, by the transceiver circuitry, in a logged measurement report when the UE is in a radio resource control (RRC) connected state, and wherein the logged measurement report comprises;
available UE measurements performed in idle for at least one of intra-frequency, inter-frequency, or inter-RAT;
time stamp; and
location information.
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71. A method performed by a base station, the method comprising:
receiving from a UE, when the UE is in a radio resource control (RRC) connected state, a logged measurement report, wherein the logged measurement report reports measurements logged by the UE, when in an idle mode, for reporting to a base station at a later point in time, and wherein the logged measurement report comprises;
available UE measurements performed in idle for at least one of intra-frequency, inter-frequency, or inter-RAT;
time stamp; and
location information.
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72. A base station comprising:
a controller and transceiver circuitry, the controller being configured to control the base station to receive from a UE, when the UE is in a radio resource control (RRC) connected state, a logged measurement report, wherein the logged measurement report reports measurements logged by the UE, when in an idle mode, for reporting to a base station at a later point in time, and wherein the logged measurement report comprises;
available UE measurements performed in idle for at least one of intra-frequency, inter-frequency, or inter-RAT;
time stamp; and
location information.
Specification