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Method, equipment and system for processing HARQ (Hybrid Automatic Repeat reQuest) progress

A technology of process and network side equipment, applied in the field of communication, can solve the problem of discarding uplink data and so on

Active Publication Date: 2013-05-15
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0017] Therefore, during the state transition process, the UE performs the reset operation of the MAC-is / i entity, which will cause excessive discarding of uplink data; that is, in the prior art, the UE performs state transitions between the enhanced CELL-FACH state and the CELL-DCH state , if the RNC instructs the UE to reset the MAC-is / i entity, it will cause excessive discarding of uplink data

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  • Method, equipment and system for processing HARQ (Hybrid Automatic Repeat reQuest) progress
  • Method, equipment and system for processing HARQ (Hybrid Automatic Repeat reQuest) progress
  • Method, equipment and system for processing HARQ (Hybrid Automatic Repeat reQuest) progress

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[0106] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0107] In the embodiment of the present invention, when the UE performs a state transition between the CELL-FACH state and the CELL-DCH state, the high layer can instruct the MAC entity to clear the buffer in the HARQ process, thereby avoiding the problem that the UE discards too many data packets. Wherein, the high-layer instruction refers to that the RRC notifies the MAC entity whether to clear the cache in the HARQ process through the parameters carried by the inter-layer primitiv...

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Abstract

The invention discloses a method for processing an HARQ (Hybrid Automatic Repeat reQuest) progress. The method comprises the following steps of: when user equipment (UE) determines that state transition is generated, judging whether the data transmission mode of the UE per se changes or not by the UE if a network side does not indicate the UE to carry out a resetting operation of an MAC (Media Access Control) entity through an RRC (Radio Resource Control) signaling; when the data transmission mode of the UE changes, indicating the MAC entity to clear up caches in the HARQ progress through a high-level indication by the UE; and clearing up the caches in the HARQ progress according to the high-level indication by the MAC entity. In the invention, when the UE carries out state transition between a CELL-FACH (Forward Access Channel) state and a CELL-DCH (Dedicated Channel) state, the MAC entity can be indicated to clear up the caches in the HARQ progress through the high-level indication so as to solve the problem of the abandonment of excessive data packets by the UE.

Description

technical field [0001] The present invention relates to the technical field of communications, and in particular to a processing method, device and system for a HARQ process. Background technique [0002] LCR (Low Chip Rate, low chip rate) TDD (Time Division Duplexing, time division duplex) system introduced enhanced CELL (cell)_FACH (Forward Access Channel) in 3GPP (3rd Generation Partnership Project, third generation partnership project) , the characteristics of the forward access channel). Among them, in enhancing the characteristics of CELL_FACH, the relevant channels and transmission mechanisms of HSDPA (High speed Downlink Packet Access) and HSUPA (High speed Uplink Packet Access, high speed uplink packet access) are introduced into the CELL_FACH state. Therefore, in the enhanced CELL_FACH state, downlink data will be mapped to HS-DSCH (High speed Downlink Share Channel, high speed downlink shared channel) for transmission, and uplink data will be mapped to E-DCH (Enh...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18H04W28/14H04W74/08
Inventor 刘亚伟李晓卡
Owner DATANG MOBILE COMM EQUIP CO LTD
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