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Method, device and system for sending status report

A sending method and a status report technology, applied in the field of communication, can solve problems such as repeated transmission of RLC SDU segments

Inactive Publication Date: 2020-12-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides a status report sending method, device and system to at least solve the problem of repetitive transmission of RLC SDU segments due to misunderstanding of the sending end device caused by adopting the RLC status report sending method in LTE in 5G

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  • Method, device and system for sending status report
  • Method, device and system for sending status report
  • Method, device and system for sending status report

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Embodiment Construction

[0038] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Wherein, in the description of this application, unless otherwise stated, " / " means or means, for example, A / B can mean A or B; "and / or" in this document is only an association to describe the associated object Relation, it means that there can be three kinds of relations, for example, A and / or B can mean that A exists alone, A and B exist at the same time, and B exists alone. Also, in the description of the present application, unless stated otherwise, "plurality" means two or more than two. In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same or similar items with basically the same function and effect. Those skil...

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Abstract

Provided in the embodiments of the present application are a method, device and system for transmitting a status report so as to at least solve the problem in 5G of a radio link control (RLC) service data unit (SDU) segment being repeatedly transmitted due to a misunderstanding of a transmitting end device caused by an RLC status report transmitting mode which is employed in LTE. The method comprises: a receiving end device receives an RLC protocol data unit (PDU) of which a sequence number (SN) is x, wherein the RLC PDU comprises an RLC SDU segment, and x is the SN of the RLC PDU having the largest SN among the RLC PDUs received in a current receiving window of the receiving end device; when a first timer expires and the receiving end device does not completely receive the RLC SDU, the receiving end device transmits N status PDUs to a transmitting end device, wherein the first timer is a timer that needs to be started when the receiving end device has an RLC SDU that is not completely received, and the N status PDUs comprise the reception statuses of all RLC SDUs having an SN that is less than x, N being a positive integer greater than or equal to 1.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular, to a method, device and system for sending status reports. Background technique [0002] like figure 1 As shown, in a wireless communication system, a radio link control (radio link control, RLC) layer is located between a media access control (media access control, MAC) layer and a packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer. . Assuming that data is transmitted from the terminal to the base station, the data transmission direction is as follows figure 1 in the direction of the arrow. [0003] In the existing long term evolution (long term evolution, LTE), the RLC includes three working modes: transparent mode (Transparent Mode, TM), unacknowledged mode (unacknowledged mode, UM), and acknowledged mode (acknowledged mode, AM). Among them, such as figure 2 As shown, under AM, the AM entity of the transmitting end device...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18H04L1/16
CPCH04L1/1621H04L1/1851H04L1/16H04L1/18
Inventor 许斌曹振臻权威
Owner HUAWEI TECH CO LTD