Flow control for uplink traffic in an integrated access and backhaul network
AssigneeApple Inc.
InventorsMurali Narasimha, Sudeep Palat, Candy Yiu
Life of this patent
Estimating the term…
Abstract
Systems and methods provide flow control for uplink traffic in an integrated access and backhaul network. A first relay node determines that its uplink buffer has reached an occupancy level higher than a pre-determined level. In response, the first relay node transmits, to a second relay node associated with the first relay node, a message indicating a buffer occupancy status of the uplink buffer of the first relay node.
Claims18
An apparatus for flow control in a first relay node of a wireless communication network, the apparatus comprising:
- an uplink buffer;
- and
- a processor configured to:
- determine that the first relay node is experiencing congestion for uplink transmission;
- and
- in response to determining that the first relay node is experiencing the congestion for uplink transmission:
- generate a message to a second relay node associated with the first relay node, the message comprising a projected buffer occupancy status of the uplink buffer of the first relay node, wherein the projected buffer occupancy status is based on an amount of buffered uplink data awaiting transmission to the first relay node.
A method for flow control in a first relay node of a wireless communication network comprising an uplink buffer, the method comprising:
- determining that the first relay node is experiencing congestion for uplink transmission;
- and
- in response to determining that the first relay node is experiencing the congestion for uplink transmission:
- generating a message to a second relay node associated with the first relay node, the message comprising a projected buffer occupancy status of the uplink buffer of the first relay node, wherein the projected buffer occupancy status is based on an amount of buffered uplink data awaiting transmission to the first relay node.
At least one non-transitory computer-readable storage medium comprising computer-readable instructions for flow control in a first relay node of a wireless communication network comprising an uplink buffer stored thereon, the computer-readable instructions configured to instruct one or more processors to:
- determine that the first relay node is experiencing congestion for uplink transmission;
- and
- in response to determining that the first relay node is experiencing the congestion for uplink transmission:
- generate a message to a second relay node associated with the first relay node, the message comprising a projected buffer occupancy status of the uplink buffer of the first relay node, wherein the projected buffer occupancy status is based on an amount of buffered uplink data awaiting transmission to the first relay node.
Dependencies are inferred from the claim text.