Unlock instant, AI-driven research and patent intelligence for your innovation.

Enhanced recovery procedure

A technology that automatically repeats requests and receivers, applied in the HSDPA business field, can solve problems such as data discarding, and achieve the effect of reducing duplication

Active Publication Date: 2013-11-06
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since radio coverage does not exist at the UE, the data will be discarded

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Enhanced recovery procedure
  • Enhanced recovery procedure
  • Enhanced recovery procedure

Examples

Experimental program
Comparison scheme
Effect test

no. 2 example

[0126] A second embodiment of the second routine of the present invention is in Figure 9 is shown in the flowchart. be related to Figure 8 Compared with the flow chart of the first embodiment of the second routine shown, monitor HS-DSCH channel quality 21, check whether channel quality is high level or low level 22, update 24 of parameters, threshold test 26, reset 27, set The steps to suspend flag 28 are equivalent to Figure 8 the steps shown.

[0127] In a second embodiment, the parameter T3 is updated such that if the channel quality is low, a first value K2 is used for the update, while if the channel quality is high, a second value K1, preferably negative (in Figure 9 Negative values ​​are emphasized in ) for updating parameters, step 25.

[0128] The values ​​of K1 and K2 may be equal or different.

[0129] Figure 12 and 13 An exemplary situation is given in , where the parameter is shown to increase and decrease with channel quality fluctuations while remain...

no. 1 example

[0153] According to the first embodiment of the invention, since the pause window is set to true (because the channel quality is low for the given period time 6-10), sequence number 41 (=M) will set the upper bound of the new receive window as HR:=M ,Such as Figure 4 as defined in step 16. Stall avoidance reordering based on the normal timer will now continue, which will ensure that packet data units with TSN equal to 41 will be delivered to the RLC layer.

[0154] It will be appreciated that packet data units with TSNs within the new receive window (ie 10-41) may be simultaneously transmitted by the Node B, and these packets will then also be delivered to the RLC layer.

[0155]The present invention can be advantageously utilized in conjunction with a known functionality known as Persistent Packet Connectivity (CPC). CPC allows UEs to limit the downlink reception time and is primarily intended for applications involving the transfer of small packets continuously (eg VoIP) ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method and apparatus is provided for performing normal reordering or timer based stall avoidance or window based stall avoidance, for instance for a 3GPP HSPDA compliant user entity; the method furthermore comprising the steps of deriving an accumulated quality measure pertaining to the packet data being communicated from the transmitter entity to the receiver entity; comparing the accumulated quality measure with a predetermined threshold value; if the accumulated quality measure meets predefined criteria, moving the window corresponding to the highest received value forward to a position corresponding to the received sequence number; and setting the next expected value in the receiver window forward to a position corresponding to a rear position of the window determined by the window size.

Description

technical field [0001] The present invention relates to the operation of a receiver entity adapted to receive and acknowledge receipt of packet data units from a transmitter entity in accordance with an automatic repeat request procedure, and wherein packet data units are transferred from a media access protocol layer to a higher protocol The in-order delivery of the layers is performed in the sink. [0002] More specifically, the invention relates to signaling between a User Entity (UE), a Radio Base Station (Node B) and a Radio Network Controller (RNC). Still more specifically, the present invention relates to HSDPA (High Speed ​​Downlink Packet Data Access) services utilizing among others MAC-hs (Media Access Control High Speed) and RLC (Radio Link Control Layer) data transfer protocols. Background technique [0003] HSDPA provides high-speed downlink access from a UMTS base station (Node B) to multiple user entities through flexible allocation of downlink resources. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16H04L1/18
CPCH04L47/10H04L47/14H04L1/1841H04L1/1832H04L1/1851H04L47/34H04L47/27H04W28/04H04W28/02H04W8/04
Inventor J·林德斯科格R·瓦勒里厄斯
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD