Method and apparatus for updating multicast and broadcast service system information in a wireless access system
AssigneeLG Electronics Inc.
InventorsJeongki Kim, Kiseon Ryu, Youngsoo Yuk
Life of this patent
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Abstract
The present description relates to a method for updating E-MBS-related system information in an idle mode state, comprising the following steps: receiving, from a base station, a first system configuration descriptor (SCD) message containing an E-MBS-related parameter; receiving, from the base station, a first message containing an indicator for indicating whether or not to change the E-MBS-related parameter; and, if the indicator indicates that the E-MBS-related parameter is to be changed, shifting from the idle mode state to a connected mode state.
Claims8
A method of updating enhanced multicast and broadcast service (E-MBS) related system information in an idle mode, the method comprising:
- receiving a first system configuration descriptor (SCD) message including an E-MBS related parameter from a base station;
- receiving a first message including an indicator indicating whether the E-MBS related parameter is changed from the base station;
- and
- performing a wake-up operation in the idle mode when the indicator indicates that the E-MBS related parameter is changed,
- wherein the indicator indicates whether an E-MBS related parameter included in an SCD message first transmitted after the first message is transmitted is changed,
- wherein the indicator is an SCD update indicator represented by a bitmap,
- wherein the first message further includes an SCD transmission time offset field indicating a time that a second SCD message including the changed E-MBS related parameter is transmitted, and
- wherein a size of the SCD transmission time offset field is determined according to a value of an E-MBS scheduling interval (EMI).
A terminal for updating enhanced multicast and broadcast service (E-MBS) related system information in an idle mode, the terminal comprising:
- a radio frequency unit for transmitting and receiving a radio signal to/from an outside;
- and
- a controller connected to the radio frequency unit,
- wherein the controller controls the radio frequency unit configured to receive a first system configuration descriptor (SCD) message including an E-MBS related parameter from a base station, controls the radio frequency unit configured to receive a first message including an indicator indicating whether the E-MBS related parameter is changed from the base station, and when the indicator indicates that the E-MBS related parameter is changed, controls the idle mode to be shifted to a connection mode,
- wherein the indicator indicates whether an E-MBS related parameter included in an SCD message first transmitted after the first message is transmitted is changed,
- wherein the indicator is an SCD update indicator represented by a bitmap,
- wherein the first message further includes an SCD transmission time offset field indicating a time that a second SCD message including the changed E-MBS related parameter is transmitted, and
- wherein a size of the SCD transmission time offset field is determined according to a value of an E-MBS scheduling interval (EMI).
Dependencies are inferred from the claim text.