Distributed mobility for radio devices
Multiple mobility sets are maintained for nodes of radio networks. The sets comprise information such as: transmit and receive point identities; cell identities; beam identities; frequency channels; channel bandwidth; and black lists. The sets may be defined at different levels, such as network and physical (PHY) level. A network mobility set, e.g., a new-radio (NR) mobility set may, be determined by the gNB, the cell, the UE, or another device. Multiple radio access network nodes and UEs may exchange mobility set information to achieve a distributed mobility solution. A UE may monitor its orientation relative to a TRP, e.g., via use of an onboard MEMS gyroscope, and alter its beamforming parameters in response to changes in orientation and/or changes in TRP connection strength. Cell selection and reselection for beam based networks may use Single Frequency Network (SFN) broadcast of initial access signals without beam sweeping.
1. A first apparatus comprising a processor, communication circuitry, a memory, and computer-executable instructions stored in the memory which, when executed by the processor, cause the first apparatus to:
establish a connection with a second apparatus, the second apparatus comprising an entity managing operations of a first radio access network;
obtain, via communications with the second apparatus, a first mobility set comprising a first list of beams of a set of target cells in the first radio access network; and
obtain first mobility set measurements pertaining to communications conditions with beams of target cells indicated by the first mobility set; and
select, based on the measurements, a target cell from the set of target cells;
update a second mobility set with information pertaining to one or more beams of the target cell.
2. The first apparatus of claim 1 , wherein:
the instructions further cause the first apparatus to send a first report of communications measurements to the second apparatus; and
the first mobility set is based, at least in part, on the first report.
3. The first apparatus of claim 2 , wherein the instructions further cause the first apparatus to observe a status change of the first apparatus, where the status change is a mobility event or a change in the angle or orientation of the first apparatus.
4. The first apparatus of claim 3 , wherein the computer-executable instructions further cause the first apparatus to use joint transmission or reception via a plurality of beams.
5. The first apparatus of claim 3 , wherein the computer-executable instructions further cause the first apparatus to determine a threshold for the status change, where the threshold is based at least in part on the width of the second beam.
6. A second apparatus, comprising an entity managing operations of a first radio access network, the second apparatus further comprising a processor, communication circuitry, a memory, and computer-executable instructions stored in the memory which, when executed by the processor, cause the second apparatus to:
establish a connection with a first apparatus;
receive, from the first apparatus, a first report of communications conditions of the first apparatus; and
send, to the first apparatus and based on the first report, a first mobility set comprising a first list of beams of a set of target cells in the first radio access.
7. The first apparatus of claim 6 , wherein the computer-executable instructions further cause the first apparatus to:
receive, from the first apparatus, a second report of communications conditions of the first apparatus;
send, to the first apparatus and based on the second report, an update to the first mobility set.