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Method and device for determining the validity of harq feedback mode in rrc reconfiguration message

A technology of feedback mode and reconfiguration message, which is applied in the field of communication to avoid downlink retransmission behavior and improve network performance

Active Publication Date: 2022-07-26
SPREADTRUM COMM (SHANGHAI) CO LTD
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Problems solved by technology

[0018] The method and device for determining the validity of the HARQ feedback mode in the RRC reconfiguration message provided by the present invention can overcome the mismatch between the base station side and the terminal UE side in determining the configuration validation time by specifying the configuration validation time points on the terminal side and the base station side situation, thereby avoiding unnecessary downlink retransmission behavior of the base station and improving network performance

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  • Method and device for determining the validity of harq feedback mode in rrc reconfiguration message

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Embodiment Construction

[0042] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] The present invention provides a method for determining the validity of a HARQ feedback mode in an RRC reconfiguration message, which is applied to a user terminal UE, and the method includes:

[0044] S11, the physical layer sends the RRC reconfiguration message carrying the configuration message of the HARQ...

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Abstract

The present invention provides a method and device for determining the validity of a HARQ feedback mode in an RRC reconfiguration message. ; The RRC layer parses the RRC reconfiguration message, and configures the HARQ feedback mode and delay flag for the physical layer according to the RRC reconfiguration message; time, the physical layer does not take effect of the delay flag after the delay flag has been configured, and uses the pre-configured HARQ feedback mode to send the HARQ-ACK message to the base station at the time of sending the HARQ-ACK message, and sends the HARQ-ACK message The delay flag will take effect immediately after that, otherwise the delay flag will take effect immediately after the delay flag has been configured. The present invention can overcome the situation that the determination of the configuration effective time does not match between the base station side and the terminal UE side, thereby avoiding unnecessary downlink retransmission behavior of the base station and improving network performance.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a method and device for determining the validity of a HARQ feedback mode in an RRC reconfiguration message. Background technique [0002] In the LTE system, the base station sends an RRC (Radio Resource Control, Radio Resource Control) reconfiguration message to the UE, and the RRC reconfiguration message carries the new configuration of the HARQ (Hybrid Automatic Repeat Request, Hybrid Automatic Repeat Request) feedback mode change For example, from the HARQ bundling feedback mode to the HARQ multiplexing feedback mode, from the HARQ multiplexing feedback mode of R9 to the single-CC (Component Carrier) PUCCH format1b, from the single-CC HARQ feedback mode to the 2CC HARQ feedback mode mode, and change from the HARQ feedback mode of n CCs to the HARQ feedback mode of n+1CC, etc. After the UE receives the RRC reconfiguration message, it configures the paramet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W76/27H04L1/18H04L1/16H04L5/00
CPCH04W76/27H04L1/1893H04L1/1812H04L1/1607H04L5/0055
Inventor 刘东晓邓云
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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