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US 10,122,512 B2Granted
Method and apparatus for supporting network listening in wireless communication system
AssigneeLG Electronics Inc.
InventorYunjung Yi
Life of this patent
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Abstract
A method and apparatus for supporting a network listening in a wireless communication system is provided. A user equipment (UE) receives a subframe configuration used for the network listening, and monitors subframes indicated as subframes used for radio interface based synchronization (RIBS) by the received subframe configuration.
Claims11
A method for supporting, by a user equipment (UE), a network listening in a wireless communication system, the method comprising:
- receiving a subframe configuration used for the network listening;
- monitoring a plurality of subframes indicated by the received subframe configuration,
- wherein the plurality of subframes are used for receiving a reference signal (RS) for a synchronization;
- receiving the RS for the synchronization,
- wherein the RS for the synchronization is received in a subframe configured for the network listening among the plurality of subframes,
- wherein signals of the subframe are muted except for the RS for the synchronization,
- wherein the RS for the synchronization is received only in a physical downlink shared channel (PDSCH) region of the plurality of subframes, and the muting of the signals of the subframe also occurs in the PDSCH region of the plurality of subframes, and
- wherein the muting of the signals is performed according to a muting pattern, which is configured and triggered by downlink control information (DCI);
- performing the synchronization based on the RS for the synchronization,
- wherein the synchronization is performed based on stratum levels of cells,
- wherein a density of the RS is increased in order to increase a reliability with a higher stratum level, and
- wherein the subframes are configured proportional to a stratum level in order to have an orthogonal transmission of the RS among cells with same stratum level;
- and
- receiving or transmitting data at a timing based on the synchronization.
11 more elements
A user equipment (UE) configured to support a network listening in a wireless communication system, the UE comprising:
- a processor that:
- receives a subframe configuration used for the network listening;
- monitors a plurality of subframes indicated by the received subframe configuration,
- wherein the plurality of subframes are used for receiving a reference signal (RS) for a synchronization;
- receives the RS for the synchronization,
- wherein the RS for the synchronization is received in a subframe configured for the network listening among the plurality of subframes,
- wherein signals of the subframe are muted except for the RS for the synchronization,
- wherein the RS for the synchronization is received only in a physical downlink shared channel (PDSCH) region of the plurality of subframes, and the muting of the signals of the subframe also occurs in the PDSCH region of the plurality of subframes, and
- wherein the muting of the signals is performed according to a muting pattern, which is configured and triggered by downlink control information (DCI);
- performs the synchronization based on the RS for the synchronization,
- wherein the synchronization is performed based on stratum levels of cells,
- wherein a density of the RS is increased in order to increase a reliability with a higher stratum level, and
- wherein the subframes are configured proportional to a stratum level in order to have an orthogonal transmission of the RS among cells with same stratum level;
- and
- receives or transmits data at a timing based on the synchronization.
12 more elements
Dependencies are inferred from the claim text.