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A method and system for delayed sending of status packets

A sending method and a technology of status packets, which are applied in transmission systems, digital transmission systems, and error prevention, etc., can solve problems such as the influence of data throughput rate, RLC sending window hindering progress, etc., and achieve improved throughput and reasonable delay sending of status packets Effect

Inactive Publication Date: 2018-01-02
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has an obvious shortcoming, that is, because the status packet contains both the confirmation ACK for correctly receiving the RLC data packet and the negative confirmation NACK for not correctly receiving the RLC data packet, the delayed negative confirmation NACK must also be delayed Confirm the ACK, so the RLC sending window on the RNC side will be hindered, and the downlink data throughput will be affected

Method used

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  • A method and system for delayed sending of status packets
  • A method and system for delayed sending of status packets
  • A method and system for delayed sending of status packets

Examples

Experimental program
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Effect test

Embodiment 1

[0077] 101: When the UE is in the cross-base station single-frequency dual-reception operation, according to the UE service downlink data throughput requirement, the RNC side determines the appropriate RLC data packet size (RLC PDU size) for the UE according to its own pre-configured algorithm. The size of the RLC transmission window (RLC transmission window size) and the duration of NACKDelayTimer;

[0078] Specifically, in the first embodiment, the RNC configures the duration of the NACKDelayTimer as 100 ms, and configures the above parameters and other necessary parameters according to the existing RRC protocol to the UE through the Radio Resource Control (RRC) of the RRC message.

[0079] The following specific combination image 3 Reception of the RLC SN GAP shown across base stations is shown for illustration.

[0080] 102: At time point T0=0ms, UE receives RLC (SN=0) and RLC (SN=4) correctly from cells 1 and 2 respectively, UE detects RLC SN GAP=1, 2, 3, and records GA...

Embodiment 2

[0090] 201: When the UE is in the cross-base station single-frequency double-reception operation, according to the UE service downlink data throughput requirement, the RNC side determines the appropriate RLC data packet size (RLC PDU size) for the UE according to its own pre-configured algorithm. The size of the RLC transmission window (RLC transmission window size) and the duration of NACKDelayTimer;

[0091] Specifically, in the second embodiment, the RNC configures the duration of the NACKDelayTimer to be 100ms, and configures the above parameters and other necessary parameters according to the existing RRC protocol to the UE through the Radio Resource Control (RRC) of the RRC message.

[0092] The following specific combination Image 6 In the second embodiment shown, the reception of the RLC SN GAP appears for illustration.

[0093] 202: At time point T0=0ms, UE receives RLC (SN=0) and RLC (SN=4) correctly from cells 1 and 2 respectively, UE detects RLC SN GAP=1, 2, 3, a...

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Abstract

The present invention provides a method and system for delayed transmission of status packets. The method includes: when there is a gap RLC SN GAP in the serial number of the RLC data packet received by the UE, adjust the duration of NACKDelayTimer according to the correctly received RLC data packet; The duration of the subsequent NACKDelayTimer is used to delay sending the status packet. The present invention dynamically adjusts the duration of NACKDelayTimer according to the correctly received RLC data packets when RLC SN GAP occurs in the received RLC data packets of the UE, so as to realize more reasonable delayed sending of status packets and improve the throughput of downlink data.

Description

technical field [0001] The invention relates to the technical field of digital mobile communication, in particular to a method and system for delayed sending of status packets. Background technique [0002] In a Wideband Code Division Multiple Access (WCDMA) network, a Universal Terrestrial Radio Access Network (UTRAN) includes a radio network controller (Radio Network Controller, RNC) and a base station (NodeB) Two basic network elements. [0003] With the development of WCDMA network, High Speed ​​Downlink Packet Access (HSDPA), High Speed ​​Uplink Packet Access (HSUPA), Dual Carrier High Speed ​​Downlink Packet Access (Dual Carrier-High Speed ​​Downlink Packet Access, DC-HSDPA), Dual Band-Dual Carrier-High Speed ​​Downlink Packet Access (DB-DC-HSDPA), Dual Carrier-High Speed ​​Uplink Packet Access (DualCarrier- High Speed ​​Uplink Packet Access (DC-HSUPA), Four Carrier-High Speed ​​Downlink Packet Access (4C-HSDPA), and Eight Carrier-High Speed ​​Downlink Packet Access ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/06H04L1/00H04L1/16
Inventor 杨立
Owner ZTE CORP