Determining radio signal metrics for specified resource blocks
A Radio Access Network (RAN) wirelessly serves a User Equipment (UE) over a frequency channel based on a radio signal metric. The RAN comprises baseband circuitry and a radio. The baseband circuitry determines when multiple Physical Cell Identifiers (PCIs) are available to serve the UE. In response, the baseband circuitry selects some resource blocks in the frequency channel and generates a UE instruction to measure the radio signal metric for the selected resource blocks. The radio receives the UE instruction for the baseband circuitry and wirelessly transfers the UE instruction to the UE. The radio wirelessly receives a measurement report from the UE that indicates the radio signal metric for the selected resource blocks. The radio transfers the measurement report to the baseband circuitry. The baseband circuitry receives the measurement report and responsively schedules the UE in the selected resource blocks based on the radio signal metric.
1. A method for operating a Radio Access Network (RAN) to wirelessly serve a User Equipment (UE) over a frequency channel based on a radio signal metric, the method comprising:
baseband circuitry determining when multiple Physical Cell Identifiers (PCIs) are available to serve the UE, and in response, selecting some resource blocks in the frequency channel and generating a UE instruction to measure the radio signal metric for the selected resource blocks in the frequency channel and to inhibit measuring the radio signal metric for other resource blocks in the frequency channel;
a radio receiving the UE instruction from the baseband circuitry, wirelessly transferring the UE instruction to the UE, wirelessly receiving a measurement report from the UE that indicates the radio signal metric for the selected resource blocks, and transferring the measurement report to the baseband circuitry; and
the baseband circuitry executing a 5GNR Media Access Control (MAC) and a 5GNR Radio Resource Control (RRC), the 5GNR RRC receiving the measurement report, and the 5GNR MAC responsively scheduling the UE in the selected resource blocks based on the radio signal metric for the selected resource blocks.
2. The method of claim 1 wherein the signal metric comprises Received Signal Received Quality (RSRQ), Synchronization Signal RSRQ (SS-RSRQ), Channel State Information RSRQ (CSI-RSRQ), Received Signal Received Power (RSRP), Received Signal Strength Indication (RSSI), and/or Signal to Interference plus Noise Ratio (SINR).
3. The method of claim 1 further comprising the baseband circuitry determining when channel bandwidth is excessive and when multiple PCIs are available to serve the UE, and in response, selecting some of the resource blocks in the frequency channel and generating a UE instruction to measure the radio signal metric for the selected resource blocks in the frequency channel and to inhibit measuring the radio signal metric for other resource blocks in the frequency channel.
4. The method of claim 1 wherein baseband circuitry determining when the multiple PCIs are available to serve the UE, and in response, selecting some of the resource blocks in the frequency channel and generating the UE instruction to measure the radio signal metric for the selected resource blocks in the frequency channel and to inhibit measuring the radio signal metric for other resource blocks in the frequency channel comprises the 5GNR RRC determining when the multiple PCIs are available to serve the UE, and in response, selecting some of the resource blocks in the frequency channel and generating the UE instruction to measure the radio signal metric for the selected resource blocks in the frequency channel and to inhibit measuring the radio signal metric for other resource blocks in the frequency channel.
5. The method of claim 1 wherein the baseband circuitry receiving the measurement report and responsively scheduling the UE in the selected resource blocks based on the radio signal metric for the selected resource blocks comprises the baseband circuitry determining when the signal metric exceeds a quality threshold and responsively scheduling the UE in the selected resource blocks based on the signal metric for the selected resource blocks when the radio signal metric exceeds the quality threshold.
6. The method of claim 1 further comprising the baseband circuitry determining when channel load is excessive and when multiple PCIs are available to serve the UE, and in response, selecting some resource blocks in the frequency channel and generating a UE instruction to measure the radio signal metric for the selected resource blocks in the frequency channel and to inhibit measuring the radio signal metric for other resource blocks in the frequency channel.
7. The method of claim 1 wherein the multiple PCIs comprises three or more PCIs.
8. The method of claim 1 further comprising:
the baseband circuitry verifying the radio signal metric is for the selected resource blocks; and
when the baseband circuitry cannot verify the radio signal metric is for the selected resource blocks, the baseband circuitry generating new UE instructions to measure the radio signal metric for the selected resource blocks and transferring the new UE instruction to the UE over the radio.
9. The method of claim 1 wherein:
the baseband circuitry comprises a 5GNR Centralized Unit (CU) circuitry and a 5GNR Distributed Unit (DU) circuitry; and
the radio comprises a 5GNR Receiving Unit (RU).
10. The method of claim 1 wherein the RAN comprises a 5GNR gNodeB.
11. A Radio Access Network (RAN) configured to wirelessly serve a User Equipment (UE) over a frequency channel based on a radio signal metric, the RAN comprising:
baseband circuitry configured to determine when multiple Physical Cell Identifiers (PCIs) are available to serve the UE, and in response, select some resource blocks in the frequency channel and generate a UE instruction to measure the radio signal metric for the selected resource blocks in the frequency channel and to inhibit measuring the radio signal metric for other resource blocks in the frequency channel;
a radio configured to receive the UE instruction from the baseband circuitry, wirelessly transfer the UE instruction to the UE, wirelessly receive a measurement report from the UE that indicates the radio signal metric for the selected resource blocks, and transfer the measurement report to the baseband circuitry; and
the baseband circuitry configured to execute a Fifth Generation New Radio (5GNR) Media Access Control (MAC) and a 5GNR Radio Resource Control (RRC), the 5GNR RRC configured to receive the measurement report and the 5GNR MAC configured to responsively schedule the UE in the selected resource blocks based on the radio signal metric for the selected resource blocks.
12. The RAN claim 11 wherein the signal metric comprises Received Signal Received Quality (RSRQ), Synchronization Signal RSRQ (SS-RSRQ), Channel State Information RSRQ (CSI-RSRQ), Received Signal Received Power (RSRP), Received Signal Strength Indication (RSSI), and/or Signal to Interference plus Noise Ratio (SINR).
13. The RAN of claim 11 further comprising the baseband circuitry configured to determine when channel bandwidth is excessive and when multiple PCIs are available to serve the UE, and in response, select some of the resource blocks in the frequency channel and generate a UE instruction to measure the radio signal metric for the selected resource blocks in the frequency channel and to inhibit measuring the radio signal metric for other resource blocks in the frequency channel.
14. The RAN of claim 11 wherein the 5GNR RRC is configured to determine when the multiple PCIs are available to serve the UE, and in response, select some of the resource blocks in the frequency channel and generate the UE instruction to measure the radio signal metric for the selected resource blocks in the frequency channel and to inhibit measuring the radio signal metric for other resource blocks in the frequency channel.
15. The RAN of claim 11 wherein the baseband circuitry is configured to determine when the signal metric exceeds a quality threshold and responsively schedule the UE in the selected resource blocks based on the signal metric for the selected resource blocks when the radio signal metric exceeds the quality threshold.
16. The RAN of claim 11 further comprising the baseband circuitry configured to determine when channel load is excessive and when multiple PCIs are available to serve the UE, and in response, select some of the resource blocks in the frequency channel and generate a UE instruction to measure the radio signal metric for the selected resource blocks in the frequency channel and to inhibit measuring the radio signal metric for other resource blocks in the frequency channel.
17. The RAN of claim 11 wherein the multiple PCIs comprises three or more PCIs.
18. The RAN of claim 11 further comprising:
the baseband circuitry configured to verify the radio signal metric is for the selected resource blocks; and
when the baseband circuitry cannot verify the radio signal metric is for the selected resource blocks, the baseband circuitry configured to generate new UE instructions to measure the radio signal metric for the selected resource blocks and transfer the new UE instruction to the UE over the radio.
19. The RAN of claim 11 wherein:
the baseband circuitry comprises a 5GNR Centralized Unit (CU) circuitry and a 5GNR Distributed Unit (DU) circuitry; and
the radio comprises a 5GNR Receiving Unit (RU).
20. The RAN of claim 11 wherein the RAN comprises a 5GNR gNodeB.