US 12,513,547 B2Granted

Wireless device scheduling availability during neighbor cell measurements

AssigneeApple Inc.

InventorsQiming Li, Yang Tang, Jie Cui, Dawei Zhang, Yushu Zhang, Xiang Chen, Manasa Raghavan, Huaning Niu

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Abstract

This disclosure relates to techniques for aligning wireless device and cellular network expectations and behavior in conjunction with neighbor cell measurements in a wireless communication system. A wireless device may determine that a reference signal is configured for a neighbor cell measurement when communication with the serving cell is also configured. The wireless device may determine whether the reference signal for the neighbor cell measurement is configured with same or different subcarrier spacing as the communication with the serving cell. The wireless device may select one or more of the reference signal for the neighbor cell measurement or the communication with the serving cell to receive based at least in part on whether the reference signal for the neighbor cell measurement is configured with same or different subcarrier spacing as the communication with the serving cell.

Claims20

Dependent claims

An apparatus, comprising:

a processor configured to cause a wireless device to perform operations comprising:
communicating via a wireless link with a cellular base station that provides a serving cell;
determining scheduling availability of a wireless device due to neighbor cell layer 1 (L1) measurement, wherein a synchronization signal block (SSB) from a neighbor cell is configured for L1 measurement, comprising:
when the SSB from the neighbor cell configured for L1 measurement have the same subcarrier spacing (SCS) as physical downlink control channel/physical downlink shared channel (PDCCH/PDSCH) in an active bandwidth part of the serving cell, determining that there are no scheduling restrictions due to the neighbor cell L1 measurement;
and
when the SSB from the neighbor cell configured for L1 measurement have different SCS as the PDCCH/PDSCH in the active bandwidth part of the serving cell:
if the wireless device supports simultaneousRxDataSSB-DiffNumerology, determining there are no scheduling restrictions due to the neighbor cell L1 measurement;
and
if the wireless device does not support simultaneousRxDataSSB-DiffNumerology:
in a first case when a received timing difference, RTD, between the SSB from the neighbour cell configured for L1 measurement and the serving cell is less than or equal to a cyclic prefix, CP, length, determining transmission of a first set of one or more uplink transmissions or reception of a first set of one or more downlink receptions on a first set of symbols corresponding to SSB indexes configured for L1 measurement of the neighbour cell is not expected;
or
in a second case when the RTD between the SSB from the neighbour cell configured for L1 measurement and the serving cell exceeds the CP length, determining transmission of the first set of one or more uplink transmissions or reception of the first set of one or more downlink receptions on an additional symbol before and an additional symbol after a symbol corresponding to SSB indexes from the neighbour cell configured for L1 measurement is not expected.

9 more elements

A wireless device, comprising:

a radio;
and
a processor operably coupled to the radio, wherein the radio and the processor are configured to perform operations comprising:
communicating via a wireless link with a cellular base station that provides a serving cell;
determining scheduling availability of a wireless device due to neighbor cell layer 1 (L1) measurement, wherein a synchronization signal block (SSB) from a neighbor cell is configured for L1 measurement, comprising:
when the SSB from the neighbor cell configured for L1 measurement have the same subcarrier spacing (SCS) as physical downlink control channel/physical downlink shared channel (PDCCH/PDSCH) in an active bandwidth part of the serving cell, determining that there are no scheduling restrictions due to the neighbor cell L1 measurement;
and
when the SSB from the neighbor cell configured for L1 measurement have different SCS as the PDCCH/PDSCH in the active bandwidth part of the serving cell:
if the wireless device supports simultaneousRxDataSSB-DiffNumerology, determining there are no scheduling restrictions due to the neighbor cell L1 measurement;
and
if the wireless device does not support simultaneousRxDataSSB-DiffNumerology:
in a first case when a received timing difference, RTD, between the SSB from the neighbour cell configured for L1 measurement and the serving cell is less than or equal to a cyclic prefix, CP, length, determining transmission of a first set of one or more uplink transmissions or reception of a first set of one or more downlink receptions on a first set of symbols corresponding to SSB indexes configured for L1 measurement of the neighbour cell is not expected;
or
in a second case when the RTD between the SSB from the neighbour cell configured for L1 measurement and the serving cell exceeds the CP length, determining transmission of the first set of one or more uplink transmissions or reception of the first set of one or more downlink receptions on an additional symbol before and an additional symbol after a symbol corresponding to SSB indexes from the neighbour cell configured for L1 measurement is not expected.

11 more elements

A method, comprising:

communicating via a wireless link with a cellular base station that provides a serving cell;
determining scheduling availability of a wireless device due to neighbor cell layer 1 (L1) measurement, wherein a synchronization signal block (SSB) from a neighbor cell is configured for L1 measurement, comprising:
when the SSB from the neighbor cell configured for L1 measurement have the same subcarrier spacing (SCS) as physical downlink control channel/physical downlink shared channel (PDCCH/PDSCH) in an active bandwidth part of the serving cell, determining that there are no scheduling restrictions due to the neighbor cell L1 measurement;
and
when the SSB from the neighbor cell configured for L1 measurement have different SCS as the PDCCH/PDSCH in the active bandwidth part of the serving cell:
if the wireless device supports simultaneousRxDataSSB-DiffNumerology, determining there are no scheduling restrictions due to the neighbor cell L1 measurement;
and
if the wireless device does not support simultaneousRxDataSSB-DiffNumerology:
in a first case when a received timing difference, RTD, between the SSB from the neighbour cell configured for L1 measurement and the serving cell is less than or equal to a cyclic prefix, CP, length, determining transmission of a first set of one or more uplink transmissions or reception of a first set of one or more downlink receptions on a first set of symbols corresponding to SSB indexes configured for L1 measurement of the neighbour cell is not expected;
or
in a second case when the RTD between the SSB from the neighbour cell configured for L1 measurement and the serving cell exceeds the CP length, determining transmission of the first set of one or more uplink transmissions or reception of the first set of one or more downlink receptions on an additional symbol before and an additional symbol after a symbol corresponding to SSB indexes from the neighbour cell configured for L1 measurement is not expected.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/437,788Filed 27 Apr 2021
Published: US 2023/0276282 A131 Aug 2023
Granted: 30 Dec 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

H04L 5/0053
Arrangements for allocating sub-channels of the transmission path: allocation of signalling, i.e. of overhead other than pilot signals
H04W 24/10
Supervisory, monitoring or testing arrangements: scheduling measurement reports ; Arrangements for measurement reports
H04J 11/0093
Cell search, i.e. determining cell identity [cell-ID]: neighbour cell search
H04L 5/0048
Arrangements for allocating sub-channels of the transmission path: allocation of pilot signals, i.e. of signals known to the receiver