Method and system for handling inconsistent radio link control status report
AssigneeZte Corporation
InventorsFei DONG, He HUANG, Jing LIU
Life of this patent
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Abstract
This disclosure is directed radio link control (RLC) and media access control (MAC) protocol data unit (PDU) transmission and retransmission in wireless networks, and is particularly directed to methods and systems for preventing inconsistency in RLC transmission status reports, and for resolving such inconsistency. The disclosed solutions either proactively prevent or reduce the likelihood of the occurrence of such inconsistency at the MAC layer or provide remedial measures at the RLC layer after an inconsistent RLC report is received. The disclosed methods and systems help improving network efficiency.
Claims19
A method performed by a wireless device, comprising:
- receiving, from a wireless communication node, an uplink resource grant allocated for an automatic repeat request (ARQ) process associated with a current media access control (MAC) protocol data unit (PDU) saved in an ARQ buffer of the ARQ process;
- retrieving a new data indicator (NDI) associated with the ARQ process;
- determining a resource size of the uplink resource grant;
- and
- determining whether to ignore the uplink resource grant, flush the ARQ buffer, or replace the ARQ buffer with a new MAC PDU in response to receiving the uplink resource grant based on the NDI and/or a comparison between the resource size and a PDU size of the current MAC PDU saved in the ARQ buffer.
A method performed by a wireless device, comprising:
- transmitting a current MAC PDU to a wireless communication network node;
- and
- using an ARQ timer associated with an ARQ process corresponding to the transmitted current MAC PDU to control retransmission of the current MAC PDU.
A method performed by a wireless device, comprising:
- configuring at least one ARQ process for retransmission of MAC PDUs associated with a serving cell for the wireless device serviced by a wireless network node;
- receiving an ARQ control message from the wireless network node;
- and
- controlling the at least one ARQ process according the ARQ control message.
Dependencies are inferred from the claim text.