Methods and systems for exchanging information in an integrated access and backhaul system
AssigneeZte Corporation
InventorsYing HUANG, Lin CHEN
Life of this patent
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Abstract
Methods, apparatus, and systems for reducing packet loss in wireless systems during handover, where one or more user equipment or mobile terminals are connected to an integrated access and backhaul node. The disclosure relates to continuing uplink (UL) and maintain service continuity in an integrated access and backhaul (IAB) system.
Claims17
An information transmission method comprising:
- sending, by an integrated access and backhaul (IAB) node, uplink (UL) delivery status information to at least one or more child nodes.
An information transmission method comprising:
- receiving, at one or more integrated access and backhaul (IAB) nodes, an uplink (UL) transfer status from a IAB donor centralized unit CU, wherein the UL transfer status is transmitted after the IAB donor CU receives a sequence numbers (SN) transfer message;
- retransmitting, at one of the one or more TAB nodes, according to the UL transfer status.
An information transmission method, comprising:
- transmitting, at one or more integrated access and backhaul (IAB) nodes, an end marker via GPRS Tunnelling Protocol (GTP)-U layer or F1AP message to a IAB donor centralized unit (CU) after receiving a stop indication in F1AP message.
A wireless communication apparatus, comprising a processor configured to implement a method, comprising sending, by an integrated access and backhaul (IAB) node, uplink (UL) delivery status information to at least one or more child nodes.
Dependencies are inferred from the claim text.