US 11,115,989 B1 · Primary component carrier selection in a wireless access node that uses multiple radio frequency bands

Abstract

A wireless access node serves a wireless User Equipment (UE) over a Primary Component Carrier (PCC) and Secondary Component Carriers (SCCs). The wireless access node receives a report from the wireless UE indicating radio frequency bands and their received signal strengths. The wireless access node identifies the radio frequency bands that have adequate received signal strength. The wireless access node determines electrical down-tilt angles for the identified radio frequency bands. The wireless access node selects one of the identified radio frequency bands that has a smaller electrical down-tilt angle. The wireless access node exchanges user data and network signaling with the wireless UE over the selected frequency band to serve the PCC to the UE. The wireless access node transfers additional user data to the UE to serve the SCCs to the UE.

Claims20

Dependent claims

A method of operating a wireless access node to serve wireless User Equipment (UE) over a Primary Component Carrier (PCC) and at least one Secondary Component Carrier (SCC), the method comprising:

radio circuitry wirelessly receiving a report from the wireless UE indicating radio frequency bands and received signal strengths for the radio frequency bands;
processing circuitry identifying ones of the radio frequency bands having adequate ones of the received signal strengths;
the processing circuitry determining electrical down-tilt angles for the identified ones of the radio frequency bands;
the processing circuitry selecting one of the identified radio frequency bands having a smaller one of the electrical down-tilt angles;
and
the radio circuitry wirelessly exchanging user data and network signaling with the wireless UE over the selected one of the frequency bands to serve the wireless UE over the PCC and wirelessly transferring additional user data to the wireless UE over at least some of the radio frequency bands to serve the wireless UE over the at least one SCC.

3 more elements

A wireless access node to serve wireless User Equipment (UE) over a Primary Component Carrier (PCC) and at least one Secondary Component Carrier (SCC), the wireless access node comprising:

radio circuitry configured to wirelessly receive a report from the wireless UE indicating radio frequency bands and received signal strengths for the radio frequency bands;
processing circuitry configured to identify ones of the radio frequency bands having adequate ones of the received signal strengths;
the processing circuitry configured to determine electrical down-tilt angles for the identified ones of the radio frequency bands;
the processing circuitry configured to select one of the identified radio frequency bands having a smaller one of the electrical down-tilt angles;
and
the radio circuitry configured to wirelessly exchange user data and network signaling with the wireless UE over the selected one of the frequency bands to serve the wireless UE over the PCC and to wirelessly transfer additional user data to the wireless UE over at least some of the radio frequency bands to serve the wireless UE over the at least one SCC.

3 more elements

Dependencies are inferred from the claim text.

Primary component carrier selection in a wireless access node that uses multiple radio frequency bands

Life of this patent

Primary component carrier selection in a wireless access node that uses multiple radio frequency bands

Life of this patent

Abstract

Claims20