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

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

Active Publication Date: 2022-04-12
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, terminal and storage medium for improving downlink packet filling performance in weak field
  • Method, terminal and storage medium for improving downlink packet filling performance in weak field
  • Method, terminal and storage medium for improving downlink packet filling performance in weak field

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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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PUM

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Abstract

The invention discloses a method, a terminal and a storage medium for improving downlink packet filling performance in a weak field, wherein the method includes: the terminal receives the serial number SN of the protocol data unit PDU from the network; if the PDU from the network The SN of the PDU stored locally is inconsistent with the SN of the PDU that is expected to be received next time, and the random access process is triggered; after the random access process is completed, the terminal applies to the network for uplink authorization. When the SNs of the received PDUs are inconsistent next time, the network side is notified to resend the PDUs through the uplink authorization. The present invention can reduce downlink packet loss and concurrency conflict of random access process.

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 Patents(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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