Cross-carrier scheduling using different cell numerologies

JP7872287B2Active Publication Date: 2026-06-09INTEL CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
INTEL CORP
Filing Date
2022-07-05
Publication Date
2026-06-09

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Abstract

A computer-readable storage medium stores instructions for configuring a UE for cross-carrier scheduling of data transmissions in 5G NR and beyond wireless networks and causing the UE to perform operations including decoding configuration signaling received from a base station. The configuration signaling indicates a first numerology parameter for a scheduling cell of the base station and a second numerology parameter for a scheduled cell of the base station. The DCI is received via a PDCCH of the scheduling cell. The DCI schedules DL data transmissions in the scheduled cell of the base station. If a difference between the first numerology parameter and the second numerology parameter is less than or equal to a preconfigured numerology threshold, the DL data transmission is received via a PDSCH of the scheduled cell. If the difference is greater than the threshold, the UE refrains from decoding the DL data transmission.
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Claims

1. An apparatus for user equipment (UE) configured for operation in a fifth-generation new wireless (5G NR) network, In order to configure the UE to report control information in the 5G NR network, The downlink control information (DCI) format received from the base station on the physical downlink control channel (PDCCH) is decoded, wherein the DCI format includes scheduling the physical downlink shared channel (PDSCH) and resource allocation of consecutive physical resource blocks (PRBs), and the DCI format further indicates a PRB size indicator for the PRB bundle. The downlink data received from the base station is decoded on the aforementioned continuous PRB. A hybrid automatic retransmission request acknowledgment (HARQ-ACK) is encoded for transmission to the base station over the physical uplink control channel (PUCCH), where the payload size of the HARQ-ACK is based on the number of consecutive PRBs corresponding to the PRB bundle, and the processing circuitry is configured accordingly. A memory coupled to the processing circuit and configured to store the DCI format, A device that includes this.

2. The apparatus according to claim 1, wherein the number of consecutive PRBs corresponds to the number of row start and length indicator values ​​(SLIVs) in a time domain resource allocation (TDRA) table.

3. The processing circuit is The configuration signaling received from the base station is decoded, where the configuration signaling represents a first numerology parameter for the scheduling cell of the base station and a second numerology parameter for the assigned cell of the base station, and the DCI schedules the PDSCH within the assigned cell of the base station. If the difference between the first numerology parameter and the second numerology parameter is less than or equal to a pre-configured numerology threshold, the downlink (DL) data transmission received via the PDSCH of the scheduled cell is decoded. The apparatus according to claim 1, wherein if the difference between the first numerology parameter and the second numerology parameter is greater than the pre-configured numerology threshold, the apparatus refrains from decoding the DL data transmission.

4. The DCI schedules uplink (UL) data transmission in the scheduled cell of the base station, and the processing circuit, The apparatus according to claim 3, wherein if the difference between the first numerology parameter and the second numerology parameter is less than or equal to the pre-configured numerology threshold, the apparatus is configured to encode UL data for UL data transmission via the physical uplink shared channel (PUSCH) of the scheduled cell.

5. The aforementioned processing circuit is The apparatus according to claim 4, wherein if the difference between the first numerology parameter and the second numerology parameter is greater than the pre-configured numerology threshold, the apparatus is configured to refrain from encoding the UL data for UL data transmission.

6. The first numerology parameter is μ DCI The second numerology parameter is μ DATA The pre-configured numerology threshold is d max The apparatus according to claim 3.

7. The processing circuit is |μ DCI -μ DATA |≦d max In this case, the DL data transmission is configured to decode, and the first subcarrier interval (SCS) of the active bandwidth portion (BWP) used for the transmission of the DCI in the scheduling cell is 2 μDCI - The second SCS of the active BWP, which is 15kHz and used for receiving the DL data transmission in the scheduled cell, is 2 μDATA The apparatus according to claim 6, wherein the frequency is 15 kHz.

8. The said configured signaling is |μ DCI -μ DATA | > d max When it is, the apparatus according to claim 6, which activates a bandwidth part (BWP) on the said scheduled cell.

9. The processing circuit decodes the DCI and determines that the BWP on the scheduled cell is |μ DCI -μ DATA,1 |>d max Numerology μ results in this outcome DATA,1 The apparatus according to claim 8, which determines a BWP indicator field indicating that it has, refrains from changing the BWP on the scheduled cell, and uses the BWP for receiving the DL data transmission.

10. The aforementioned processing circuit is The DCI is decoded, and the BWP on the scheduled cell is |μ DCI -μ DATA,1 |>d max Numerology μ results in this outcome DATA,1 Determine the BWP indicator field that indicates it has, |μ DCI -μ DATA,2 |≦d max Numerology μ that satisfies the condition DATA,2 Switch to the second BWP on the scheduled cell having The apparatus according to claim 8, wherein the second BWP is used for receiving the DL data transmission.

11. The DCI schedules multiple PDSCH transmissions of DL data, and the processing circuit, The apparatus according to claim 3, wherein it encodes a hybrid automatic retransmission request acknowledgment (HARQ-ACK) codebook for transmission to the base station, the HARQ-ACK codebook includes bundled HARQ-ACK information for the plurality of PDSCH transmissions.

12. A transceiver circuit coupled to the processing circuit, Two or more antennas coupled to the transceiver circuit and The apparatus according to claim 1, further comprising:

13. A computer program comprising instructions for execution by one or more processors of a user device (UE), The aforementioned instruction configures the UE to report control information in the new radio (NR) network, and to the UE, Encode a Downlink Control Information (DCI) format for transmission to a User Equipment (UE) over a Physical Downlink Control Channel (PDCCH), wherein the DCI format includes scheduling the Physical Downlink Shared Channel (PDSCH) and resource allocation of consecutive Physical Resource Blocks (PRBs), and the DCI format further indicates a PRB size indicator for PRB bundles. The downlink data is encoded on the aforementioned continuous PRB for transmission to the UE. The Hybrid Auto Retransmission Request Acknowledgment (HARQ-ACK) received from the UE on the Physical Uplink Control Channel (PUCCH) is decoded, where the payload size of the HARQ-ACK is based on the number of consecutive PRBs corresponding to the PRB bundle. A computer program that causes an action to be performed, including the action of doing so.

14. The computer program according to claim 13, wherein the number of consecutive PRBs corresponds to the number of row start and length indicator values ​​(SLIVs) in a time-domain resource allocation (TDRA) table.

15. User equipment (UE) configured to operate in a new wireless (NR) network, A front-end circuit coupled to one or more antennas, A processing circuit coupled to the front-end circuit and Includes, The aforementioned processing circuit is The downlink control information (DCI) format received from the base station on the physical downlink control channel (PDCCH) is decoded, wherein the DCI format includes scheduling the physical downlink shared channel (PDSCH) and resource allocation of consecutive physical resource blocks (PRBs), and the DCI format further indicates a PRB size indicator for the PRB bundle. The downlink data received from the base station is decoded on the aforementioned continuous PRB. A hybrid automatic retransmission request acknowledgment (HARQ-ACK) is encoded for transmission to the base station over the physical uplink control channel (PUCCH), where the payload size of the HARQ-ACK is based on the number of consecutive PRBs corresponding to the PRB bundle, UE.

16. The UE according to claim 15, wherein the number of consecutive PRBs corresponds to the number of row start and length indicator values ​​(SLIVs) in the time domain resource allocation (TDRA) table.

17. The processing circuit is The configuration signaling received from the base station is decoded, where the configuration signaling represents a first numerology parameter for the scheduling cell of the base station and a second numerology parameter for the assigned cell of the base station, and the DCI schedules the PDSCH within the assigned cell of the base station. If the difference between the first numerology parameter and the second numerology parameter is less than or equal to a pre-configured numerology threshold, the downlink (DL) data transmission received via the PDSCH of the scheduled cell is decoded. The UE according to claim 15, wherein if the difference between the first numerology parameter and the second numerology parameter is greater than the pre-configured numerology threshold, the UE refrains from decoding the DL data transmission.

18. The UE according to claim 17, wherein the DCI schedules uplink (UL) data transmission in the scheduled cell of the base station, and the processing circuit is configured to encode UL data for the UL data transmission over the physical uplink shared channel (PUSCH) of the scheduled cell if the difference between the first numerology parameter and the second numerology parameter is less than or equal to the pre-configured numerology threshold.

19. The UE according to claim 18, wherein the processing circuit is configured to refrain from encoding the UL data for UL data transmission if the difference between the first numerology parameter and the second numerology parameter is greater than the pre-configured numerology threshold.

20. The UE according to claim 17, wherein the first numerology parameter is μDCI, the second numerology parameter is μDATA, and the pre-configured numerology threshold is dmax.

21. A non-temporary computer-readable storage medium storing the computer program described in claim 13 or 14.