User equipment and base stations involved in channel measurement reporting

Abstract

This disclosure relates to user equipment comprising: a receiving unit that receives from a base station a reference signal setting relating to a plurality of candidate resource settings of a reference signal transmitted by the base station to the UE; a receiving unit that receives a reference signal setting instruction from the base station indicating one or more of the plurality of candidate resource settings; and a processing unit that measures the reference signal received from the base station based on the indicated candidate resource settings.

Claims

1. User equipment (UE), A receiving unit that, during operation, receives a reference signal setting from the base station, which includes a plurality of candidate resource settings relating to a reference signal transmitted to the UE by the base station, and during operation, the receiving unit that receives a reference signal setting instruction from the base station indicating one or more of the plurality of candidate resource settings, During operation, a processing unit measures a reference signal received from the base station based on the candidate resource settings indicated above, User equipment equipped with these features.

2. The processing unit generates one or more measurement reports, including the measurement results of the measured reference signal, during operation. The transmitting unit of the UE transmits the generated measurement report to the base station when in operation. The user device according to claim 1.

3. At least two of the above-mentioned candidate resource settings differ from each other by defining candidate transmission characteristics for the reference signal having different values, and the different candidate transmission characteristics are - Different antenna port patterns for the aforementioned reference signal, - Different transmission powers for the aforementioned reference signal, and - The reference signal is one or more different transmit powers for the downlink data channel being measured. As an option, the above multiple candidate resource settings are: - Further define the frequency domain and time domain radio resource elements for carrying the aforementioned reference signal. The user device according to claim 1 or 2.

4. The antenna port pattern for the aforementioned reference signal is determined by the candidate resource settings. - Sign-Partitioned Multiplexing (CDM) group index, - Antenna port index, and - Combination of CDM group index and antenna port index, Defined based on one or more of the following: Optionally, the transmit power for the downlink data channel is defined based on the power offset relative to the reference signal. Optionally, the transmit power for the reference signal is defined based on the power offset for the synchronization signal block transmission from the base station. The user device according to claim 3.

5. At least one of the above candidate resource settings is defined to define at least one transmission characteristic that is different from the transmission characteristics actually used by the base station, and optionally the different transmission characteristics are - Different antenna port patterns, such as a subset of all antenna ports actually used by the base station to transmit the aforementioned reference signal, - Different transmission powers, such as lower or higher transmission powers than those actually used by the base station to transmit the reference signal, - Different transmit powers, such as lower or higher transmit power than the transmit power actually used by the base station to transmit downlink data channels, Refers to one or more of the following: The user device according to claim 1.

6. The reference signal setting configures one or more radio resources for the reference signal, wherein at least one radio resource is defined by two or more different candidate transmission characteristics of the reference signal. Optionally, the reference signal setting configures one or more wireless resource sets for the reference signal, and each wireless resource set represents one or more of the wireless resources for the reference signal. The user device according to claim 1.

7. The aforementioned reference signal setting instruction is, - A group ID, wherein each of the multiple candidate resource settings is associated with one of the multiple group IDs, - A bitmap, wherein each bit of the bitmap is associated with one or more of the plurality of candidate resource settings, and the value of one bit of the bitmap indicates that the measurement of the reference signal is based on the associated one or more candidate resource settings, - A codeword, wherein each codeword is associated with one or more of the aforementioned candidate resource settings, Based on one or more of these, the one or more candidate resource settings are indicated. Optionally, the reference signal setting instruction is received by the UE as a Radio Resource Control (RRC) message, a Media Access Control (MAC) control element, or a Downlink Control Information (DCI) message. Optionally, the reference signal setting is received by the UE as a Radio Resource Control (RRC) message. Optionally, the generation and transmission of measurement reports may be performed periodically, semi-permanently, or aperiodicly by the UE. The user device according to claim 1.

8. The receiving unit, during operation, receives a report setting from the base station that includes a plurality of sub-settings, and each of the plurality of sub-settings is - A set of measured and reported quantities, such as one or more of the following: channel quality parameters, channel quality indicators, precoding matrix indicators, reference signal indicators, layer indicators, and rank indicators. - Uplink channel transmission settings that configure one or more of the time and frequency of the wireless resources on the uplink channel that can be used to transmit the measurement results for each sub-setting, Set one or more of the following: The receiving unit, during operation, receives a report instruction indicating one or more of the sub-settings. The processing unit generates a measurement report based on one or more sub-settings indicated above. The user device according to claim 1.

9. The sub-setting further includes the reference signal setting that defines the reference signal, Optionally, the sub-configuration further includes the reference signal configuration relating to one or more candidate resource configurations of reference signals having different transmission characteristics that can be transmitted from the base station to the UE. The user device according to claim 8.

10. One uplink channel transmit setting, - Is it set for each sub-setting? - Shared in at least two sub-configurations, or - This is shared across all sub-settings. As an option, one set of measured and reported quantities, - Is it set for each sub-setting? - It is set in at least two sub-settings, or - This setting is configured in all sub-settings. As an option, one reference signal setting is available. - Is it set for each sub-setting? - It is set in at least two sub-settings, or - All sub-settings are configured as follows: The user device according to claim 8.

11. The aforementioned reporting instructions are: - A group ID, where each of the multiple sub-settings is associated with one of the multiple group IDs, - A bitmap, wherein each bit of the bitmap is associated with one or more of the sub-settings, and the value of one bit of the bitmap indicates that the generation and transmission of the measurement report is based on the associated sub-setting, - A codeword, wherein each codeword is associated with two or more combinations of the aforementioned plurality of sub-settings, The one or more sub-settings are indicated based on one or more of the following: Optionally, the reporting instruction may indicate the first or last N sub-settings among all of the multiple sub-settings. Optionally, the reporting instruction may be received by the UE as a Radio Resource Control (RRC) message, a Media Access Control (MAC) control element, or a Downlink Control Information (DCI) message. Optionally, the reporting settings are received by the UE as a Radio Resource Control (RRC) message. Optionally, the generation and transmission of the measurement report may be performed periodically, semi-permanently, or aperiodicly by the UE. The user device according to claim 8.

12. The processing unit, during operation, determines the priority of the measurement results transmitted to the base station, and the priority of the measurement results depends on a priority determination rule, and the priority determination rule is - Measurement results determined based on reporting settings with multiple sub-settings have a higher or lower priority than measurement results determined based on reporting settings without multiple sub-settings. - The number of sub-settings for the reporting settings, and optionally, the more sub-settings there are in the reporting settings, the higher or lower the priority of the measurement results determined based on those reporting settings, and - The smaller the index associated with a sub-setting in the reporting settings, the higher or lower the priority of the measurement result determined based on that sub-setting. Based on one or more of the following: The user device according to claim 1.

13. The priority determination rule for determining the priority of the measurement results is: - The higher the rank indicated by the rank indicator for the measurement result, the higher or lower the priority of that measurement result. - The higher the channel quality indicated by the channel quality indicator in the measurement result, the higher or lower the priority of that measurement result. It is further based on one or more of the following: As an option, the priority determination rule for determining the priority of the measurement results is: - The smaller the index associated with the reporting setting, the higher or lower the priority of the measurement result determined based on that reporting setting. Based on one or more of the following criteria, The user device according to claim 12.

14. The priority of the aforementioned measurement results is determined by the following processing, namely, - A bit sequence generation for uplink control information that carries measurement results, wherein, optionally, the priority of the measurement results is considered when determining the order of the bits generated by the bit sequence generation, and - Dropping of measurement results, which optionally includes dropping the measurement results in ascending order of priority. In one or more of the above, the processing unit considers: The user device according to claim 12.

15. Multiple measurement results are transmitted to the base station, and at least one of the multiple measurement results is determined based on a reporting setting having multiple sub-settings, or based on one of the multiple candidate resource settings of the reference signal. The processing unit, during operation, determines whether to transmit one or more of the multiple measurement results based on the drop rule, and the drop rule is: - Measurement results with low priority will be dropped. - Measurement results showing a rank higher or lower than the rank threshold should not be dropped. - Measurement results indicating channel quality that is higher or lower than the channel quality threshold should not be dropped. - Measurement results are selected and transmitted in descending order of priority until the capacity limit of the uplink channel resources carrying the measurement results is reached, and the remaining unselected measurement results are dropped. Optionally, the capacity limit is determined by the UE based on the amount of available resources on the uplink channel, or based on a notification received from the base station by one or more of the following: Radio Resource Control (RRC) messages, Media Access Control (MAC) control elements, or Downlink Control Information (DCI) messages. - Measurement results are selected and transmitted in descending order of priority until the processing limit of the UE is reached, and the remaining unselected measurement results are dropped. Optionally, the processing limit is determined by the UE based on a notification received from the base station by one or more of the following: a Radio Resource Control (RRC) message, a Media Access Control (MAC) control element, or a Downlink Control Information (DCI) message. - N measurement results from the plurality of measurement results, wherein optionally, measurement results generated based on the first or last N sub-settings are dropped, optionally, the first N measurement results having the highest or lowest rank indicator are dropped, optionally, the first N measurement results having the highest or lowest channel quality indicator are dropped, and optionally, the UE determines N from the media access control (MAC) control element or downlink control information (DCI) message, N measurement results, Based on one or more of the following: The user device according to claim 1.

16. The aforementioned drop rule applies in the following cases, i.e., - If not all of the above measurement results can be transmitted, - If two or more measurement results collide in the time domain, - When the total capacity for transmitting the multiple measurement results is greater than the capacity limit of the uplink channel resource that carries the measurement results, and - If the total processing required to transmit the multiple measurement results is greater than the processing limit of the UE that processes the measurement results, Applicable in one or more of the following cases: The user device according to claim 15.

17. The measurement results are transmitted in two parts. When the processing unit applies the drop rule, the drop rule is determined by the processing unit. - Applies to both the first and second parts of the measurement results, - The first part of the measurement result is applicable, but the second part is not, or - The above applies to the second part of the measurement result but not to the first part. Optionally, the first part has a fixed bit size, includes several measurement results, and further identifies the number of bits of the second part. The user device according to claim 15.

18. The aforementioned processing unit, when in operation, • Maximum number of reporting settings, - The maximum number of reporting settings with multiple sub-settings, - The maximum number of sub-settings within the reporting settings, and - Maximum total number of sub-settings across all reporting settings, Generate a UE capability directive that indicates one or more of the following: Optionally, the processing unit determines, during operation, one or more of the maximum number of sub-settings and the maximum total number of sub-settings based on a scaling coefficient which is a value between 0 and 1 multiplied by each sub-setting. The user device according to claim 15.

19. A processing unit that generates a reference signal setting, which includes multiple candidate resource settings for the reference signal transmitted to the user equipment (UE) by the base station during operation, The system includes a transmitting unit that transmits the reference signal setting to the UE during operation, The processing unit, during operation, determines one or more of the multiple candidate resource settings used by the UE, During operation, the transmitting unit transmits a reference signal setting instruction to the UE indicating one or more of the determined candidate resource settings. The transmitting unit transmits the reference signal to the UE during operation. Base station.

20. The system further includes a receiving unit that, during operation, receives one or more measurement reports from the UE, including the measurement results of the reference signal measured by the UE based on the one or more candidate resource settings indicated above. The base station according to claim 19.

21. The following steps are performed by the user equipment (UE), namely, The steps include receiving a reference signal setting from the base station, which includes a plurality of candidate resource settings for a reference signal transmitted to the UE by the base station, The steps include receiving a reference signal setting instruction from the base station that indicates one or more of the aforementioned multiple candidate resource settings, The steps include measuring the reference signal received from the base station based on the candidate resource settings described above, Methods that include...

22. The following steps are performed by the aforementioned UE, namely, The steps include generating one or more measurement reports that include the measurement results of the measured reference signal, The steps include transmitting the generated measurement report to the base station, The method according to claim 21, further comprising:

23. The following steps are performed by the base station, namely, The steps include generating a reference signal setting that includes a plurality of candidate resource settings for a reference signal transmitted by the base station to a user device (UE), The steps include: transmitting the reference signal setting to the UE, The steps include determining one or more of the multiple candidate resource settings used by the UE, The steps include sending a reference signal setting instruction to the UE indicating one or more candidate resource settings determined above, The steps include transmitting the reference signal to the UE, Methods that include...

24. The following steps are performed by the aforementioned base station, namely, A step of receiving one or more measurement reports from the UE, including the measurement results of the reference signal measured by the UE based on the one or more candidate resource settings, The method according to claim 23, further comprising:

25. An integrated circuit that controls the processing of a user device (UE) during operation, wherein the processing is performed by the UE in the following steps, namely: The steps include receiving a reference signal setting from the base station, which includes a plurality of candidate resource settings for a reference signal transmitted to the UE by the base station, The steps include receiving a reference signal setting instruction from the base station that indicates one or more of the aforementioned multiple candidate resource settings, The steps include measuring a reference signal received from the base station based on the candidate resource settings indicated above, Integrated circuit.

26. The process described above consists of the following steps performed by the UE, namely, The steps include generating one or more measurement reports that include the measurement results of the measured reference signal, The step of transmitting the generated measurement report to the base station is included, The integrated circuit according to claim 25.

27. An integrated circuit that controls the processing of a base station during operation, wherein the processing is performed by the base station in the following steps, namely: The steps include generating a reference signal setting that includes a plurality of candidate resource settings for a reference signal transmitted by the base station to a user device (UE), The steps include: transmitting the reference signal setting to the UE, The steps include determining one or more of the multiple candidate resource settings used by the UE, The steps include sending a reference signal setting instruction to the UE indicating one or more candidate resource settings determined above, The step of transmitting the reference signal to the UE includes, Integrated circuit.

28. The process described above involves the following steps performed by the base station, namely: The step includes receiving one or more measurement reports from the UE, which include the measurement results of the reference signal measured by the UE based on the one or more candidate resource settings, The integrated circuit according to claim 27.

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