Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and apparatus for reordering data in an evolved high speed packet access system

A reordering and high-speed technology, applied in transmission systems, digital transmission systems, radio transmission systems, etc., can solve problems such as difficult to support reordering, excessive delay, and inability to use UE

Active Publication Date: 2013-12-11
INTERDIGITAL TECH CORP
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first problem is that since the reordering function waits for packets not destined for the UE to arrive, the UE may delay the process of delivering data to higher layers
[0008] When using HS-DSCH in Cell_FACH state, the existing technology may cause too much delay when performing cell update
Performing Node-B transmissions on high-speed channels without knowledge of UE identity (i.e. using common H-RNTI) will make it difficult to support reordering
Since the identity of the intended receiver is not known in the UE's MAC-ehs entity, the Node-B cannot use UE-specific TSN

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
  • Method and apparatus for reordering data in an evolved high speed packet access system
  • Method and apparatus for reordering data in an evolved high speed packet access system
  • Method and apparatus for reordering data in an evolved high speed packet access system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0022] According to the first embodiment, the MAC-ehs PDUs are delivered in order from the HARQ entity, and by ensuring that packets are always received in order at the WTRU, the reordering task of the MAC-ehs layer can be relieved. If the MAC-ehs layer does not have to perform reordering, the MAC-ehs reset function may be simplified when the WTRU is not assigned a WTRU-specific H-RNTI. Four options for implementing the first embodiment are discussed below.

[0023]For the first option of the first embodiment, a single HARQ process is used for some transmissions. These transmissions may be from a priority queue, from a logical channel, or may be transmissions for which the identity of the designated WTRU is unknown on the MAC-ehs entity (ie when sending MAC-ehs PDUs using a common H-RNTI). In the Cell_FACH state, the MAC-ehs entity in the Node-B will repeatedly transmit the MAC-ehs PDU for a pre-configured number of times without receiving feedback from the WTRU. This process...

Embodiment

[0528] CLAIMS 1. A method for receiving HS-DSCH transmissions.

[0529] 2. The method of embodiment 1, comprising: receiving a MAC-ehsPDU via the HS-DSCH when in one of the Cell_FACH state, the Cell_PCH state, and the URA_PCH state.

[0530] 3. The method of embodiment 2, comprising: sending a reordering PDU contained in a MAC-ehs PDU to the next processing entity without performing reordering of said reordering PDU.

[0531] 4. The method as in any one of embodiments 2-3, wherein a single HARQ process is used to receive MAC-ehs PDUs.

[0532] 5. The method of embodiment 4, wherein all MAC-ehs PDUs are transmitted several times and all retransmissions of MAC-ehs PDUs are done before starting transmission of subsequent MAC-ehs PDUs.

[0533] 6. The method as in any one of embodiments 4-5, wherein a single HARQ process is used for transmissions from a certain priority queue, transmissions from a certain logical channel, and transmissions using a common H-RNTI at least one of t...

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 corresponding wireless transmit / receiv unit, WTRU, are disclosed for receiving high speed downlink shared channel, HS-DSCH, transmissions, receiving HS-DSCH medium access control, MAC-ehs, protocol data units, PDUs, via an HS-DSCH while in one of a Cell_FACH state, Cell_PCH state, or URA_PCH state, and sending reordering PDUs included in the MAC-ehs PDUs to a next processing entity without performing reordering of the reordering PDUs, wherein the sending bypasses a reordering entity.

Description

technical field [0001] The present invention relates to wireless communications. Background technique [0002] Currently, an evolved High Speed ​​Packet Access (HSPA) system is being developed within the framework of Release 7 of the 3rd Generation Partnership Project (3GPP). A feature of 3GP Release 7 is that the user equipment (UE) can receive user and / or control data via the High Speed ​​Downlink Shared Channel (HS-DSCH) not only in the Cell_DCH state, but also in the Cell_FACH, URA_PCH, and Cell_PCH states. [0003] In High Speed ​​Downlink Packet Access (HSDPA), a UE receives packets (ie MAC-hs Protocol Data Units (PDUs) or MAC-ehs PDUs) from a Node-B implementing Hybrid Automatic Repeat Request (HARQ) technology. In the Cell_DCH state, the UE sends an acknowledgment (ACK) or negative acknowledgment (NACK) to the Node-B after each HARQ transmission to indicate whether the UE successfully received the packet. [0004] Due to the delay required for the UE to perform the...

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): H04L1/18H04L47/6275
CPCH04L1/1841H04B7/155H04W16/26H04L69/322H04L69/03H04L2101/622H04L1/1861H04L47/6275
Inventor P·马里内尔D·帕尼C·R·凯夫R·迪吉罗拉墨S·E·泰利
Owner INTERDIGITAL TECH CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com