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US 2024/0188068 A1Published application
Method and apparatus for long term evolution operation in unlicensed and shared spectrum for cloud radio access networks
AssigneeMavenir Networks, Inc.
InventorsWessam Afifi AHMED, Sridhar RAJAGOPAL, Ajay NIGAM, Hersh Vardhan SHUKLA, Tarak TARANEKAR, Ajit Ashok JOSHI
Life of this patent
Estimating the term…
Abstract
There is provided a system, method, and interfaces for Radio Access Networks and Cloud Radio Access Networks.
Claims20
A system comprising:
- a Baseband Unit (BBU) configured to calculate average occupancy ratios of all valid channel combinations and select a channel with a minimum occupancy ratio if a difference between two of the channels with a least average occupancy ratios is larger than a threshold.
The system of 2 wherein the BBU is configured to calculate the channel combinations fc* and fc** as:
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136 more elements
A method comprising:
- calculating, by a Baseband Unit (BBU), average occupancy ratios of all valid channel combinations;
- and
- selecting a channel with a minimum occupancy ratio if a difference between two least average occupancy ratios is larger than a threshold.
The method of 7, further comprising:
- calculating, by the BBU, the channel combinations fc* and fc** as:
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137 more elements
A system comprising:
- means for calculating average occupancy ratios of all valid channel combinations in a cell and selecting a channel with a minimum occupancy ratio if a difference between two of the channels with a least average occupancy ratios is larger than a threshold.
The system of 12, the means further comprising means for calculating the channel combinations fc* and fc** as:
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136 more elements
A method for an eNB comprising:
- selecting a cell to be added to a user equipment (UE) using a weighted sum of factors, the selecting comprising:
- checking a plurality of cell loads of both licensed and unlicensed cells in accord with a criterion;
- checking a plurality of channel gains of both licensed and unlicensed cells in accord with the criterion;
- if all licensed channels are loaded, using unlicensed channels for new UEs;
- and
- swapping between UEs in licensed and unlicensed channels based on the UE capabilities.
3 more elements
A system comprising:
- a Remote Radio Unit (RRU) configured operate on an optimal channel to use from an unlicensed band, wherein the RRU is configured to perform periodic measurements of channels and report these measurements to a Control Unit (CU) of a Baseband Unit (BBU);
- and
- wherein the CU is configured to use the measurements to select the optimal channel to use and reconfigures the RRU to use the selected optimal channel.
A system comprising:
- a Baseband Unit (BBU) comprising a Control Unit (CU) configured to transmit a pilot message to a Remote Radio Unit (RRU) ahead of a data transmission connection time to compensate for a fronthaul latency;
- and
- wherein the RRU is configured to reply to the BBU with messages indicating a time the RRU can receive the pilot message, and
- wherein the CU is configured to adapt a transmission rate to the RRU based on the buffer size at the RRU and the fronthaul latency.
1 more element
Dependencies are inferred from the claim text.