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Method for improving downlink bagging performance in weak field, terminal and storage medium

A packet filling and weak field technology, applied in electrical components, wireless communication, etc., can solve the problems of downlink packet loss, terminal chip downlink packet loss, and the need for one party to send and the other party to receive, etc., to achieve the effect of reducing concurrent conflicts

Active Publication Date: 2020-07-03
SANECHIPS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In 2016, the first 3GPP standard narrowband Internet of Things (Narrow Band Internet of Things, NB-IoT) was gradually improved and finalized. It is an emerging branch in the field of mobile technology. Most of the terminal chips are low-cost. Considering the limitation of memory space, when the downlink packet is lost, the status report of the 3GPP protocol will be used to notify the network to resend the previous lost packet as soon as possible. At this time, if there is no uplink authorization, the random access process will be triggered to obtain the uplink authorization. However, the random access process under NB-IOT technology is a half-duplex communication process (two-way alternate channel, that is, both parties in the communication can send information, but they cannot send or receive at the same time. ), during the random access process, the underlying physical layer module cannot receive downlink NPDSCH (NB Physical Downlink Shared Channel) data, and at this time, downlink packet loss will occur due to the random access process
Limited to this, the terminal chip may fall into a "vicious cycle" of downlink packet loss and random access process

Method used

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  • Method for improving downlink bagging performance in weak field, terminal and storage medium
  • Method for improving downlink bagging performance in weak field, terminal and storage medium
  • Method for improving downlink bagging performance in weak field, terminal and storage medium

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Embodiment Construction

[0029] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0030] The steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0031] figure 1 It is a flow chart of downlink packet filling in a weak field under normal circumstances, and the downlink packet filling refers to the reception of a large number of downlink data packets.

[0032] Initially, the RLC on the UE side maint...

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Abstract

The invention discloses a method for improving downlink bagging performance in a weak field, a terminal and a storage medium, and the method comprises the steps that the terminal receives a serial number SN of a protocol data unit PDU from a network; if the SN of the PDU from the network is inconsistent with the locally stored SN of the PDU expected to be received next time, triggering a random access process; and after the random access process is completed, the terminal applies for uplink authorization to the network, and when the SN of the subsequently received PDU is inconsistent with thelocally stored SN of the PDU expected to be received next time, the network side is notified to re-send the PDU through the uplink authorization. According to the invention, concurrent conflicts between downlink packet loss and a random access process can be reduced.

Description

technical field [0001] The invention relates to downlink data receiving performance optimization technology under weak field, in particular to a method, terminal and storage medium for improving downlink packet filling performance under weak field. Background technique [0002] In 2016, the first 3GPP standard narrowband Internet of Things (Narrow Band Internet of Things, NB-IoT) was gradually improved and finalized. It is an emerging branch in the field of mobile technology. Most of the terminal chips are low-cost. Considering the limitation of memory space, when the downlink packet is lost, the status report of the 3GPP protocol will be used to notify the network to resend the previous lost packet as soon as possible. At this time, if there is no uplink authorization, the random access process will be triggered to obtain the uplink authorization. However, the random access process under NB-IOT technology is a half-duplex communication process (two-way alternate channel, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04W74/00H04W74/08
CPCH04W74/085H04W72/569H04W74/002H04W74/00H04W74/08H04W72/12
Inventor 尤斌
Owner SANECHIPS TECH CO LTD
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