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US 12,587,946 B2Granted
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.
Claims7
An information transmission method comprising:
- sending, by an integrated access and backhaul (IAB) node, uplink (UL) delivery status information to at a child node, wherein the UL delivery status information comprises sequence numbers (SNs) of at least one packet that is received from the child node, wherein the at least one packet has not been transmitted to a parent node of the IAB node or has not be confirmed as received by the parent node of the IAB node;
- and
- sending, by the IAB node, the at least one pack that needs to be re-transmitted to the child node, wherein the at least one packet contains at least one of a first backhaul adaption protocol, BAP, address of a source IAB node, a second BAP address of an access node, or a flag in a BAP subheader.
A wireless communication apparatus comprising:
- one or more processors;
- and
- a memory, wherein the one or more processors are configured to execute a program from the memory to cause the wireless communication apparatus to perform:
- sending, by an integrated access and backhaul (IAB) node, uplink (UL) delivery status information a child node, wherein the UL delivery status information comprises sequence numbers (SNs) of at least one packet that is received from the child node, wherein the at least one packet has not been transmitted to a parent node of the IAB node or has not be confirmed as received by the parent node of the IAB node;
- and
- sending, by the IAB node, the at least one pack that needs to be re-transmitted to the child node, wherein the at least one packet contains at least one of a first backhaul adaption protocol, BAP, address of a source IAB node, a second BAP address of an access node, or a flag in a BAP subheader.
3 more elements
Dependencies are inferred from the claim text.