Methods for random access channel (rach) configuration for relay node
AssigneeApple Inc.
InventorHonglei MIAO
Life of this patent
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Abstract
Techniques are provided for implementing backhaul communications for an integrated access and backhaul node (IAB) operating in a wireless network. For example, an IAB node determines a first random access channel (RACH) configuration for a child node in the wireless network that is served by the IAB node. The IAB transmits a RACH configuration request message including the first RACH configuration to a parent IAB node, and receives, from the parent IAB node, a second RACH configuration complete message that includes a second RACH configuration that is based on the first RACH configuration for the child node. The IAB then performs backhaul communication with the parent IAB node using the second RACH configuration.
Claims16
A method of operating an integrated access and backhaul (IAB) node in a wireless network, comprising:
- determining, at the IAB node, a first random access channel (RACH) configuration for a child node served by the IAB node;
- transmitting, by the IAB node, a RACH configuration request message including the first RACH configuration to a parent IAB node;
- receiving, from the parent IAB node, a second RACH configuration complete message that includes a second RACH configuration that is based on the first RACH configuration for the child node;
- and
- performing a backhaul communication with the parent IAB node using the second RACH configuration.
A method of operating an integrated access and backhaul (IAB) node in a wireless network, comprising:
- receiving, at the IAB node, a first broadcast message from a parent IAB node that includes a first random access channel (RACH) configuration to be used for backhaul communication between the IAB node and the parent IAB node;
- determining, by the IAB node, a second RACH configuration based on the first RACH configuration;
- transmitting, by the IAB node, a second broadcast message that includes the second RACH configuration to a child IAB node that is served by the IAB node;
- performing a backhaul communication with the parent IAB node using the first RACH configuration;
- and
- performing a backhaul communication with the child IAB node using the second RACH configuration.
An integrated access and backhaul (IAB) apparatus, comprising:
- radio front end circuitry configured to perform wireless communication over a wireless network;
- and
- processor circuitry, coupled to the radio front end circuitry, configured to:
- determine a first random access channel (RACH) configuration for a child node served by the IAB apparatus;
- transmit, using the radio front end circuitry, a RACH configuration request message including the first RACH configuration to a parent IAB node;
- receive, from the parent IAB node, a second RACH configuration complete message that includes a second RACH configuration that is based on the first RACH configuration for the child node;
- and
- perform, using the radio front end circuitry, a backhaul communication with the parent IAB node using the second RACH configuration.
16-20. (canceled)
Dependencies are inferred from the claim text.