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ACK/NACK method

A data block and status technology, applied in the field of confirmation/non-confirmation, mobile terminal feedback wireless link control/media access control data block reception status, which can solve the problem of multiple uplink bandwidth, occupying a lot of uplink resources, and low utilization rate of shortbitmap, etc. problem, to achieve the effect of increasing the available bandwidth

Active Publication Date: 2007-09-26
HUAWEI TECH CO LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0044] The present invention provides an ACK / NACK method to solve the problem in the prior art that using event-driven ACK / NACK to send a complete ACK / NACK message alone occupies more uplink resources, and to solve the problem of using short bitmap in fast ACK / NACK. The problem of low utilization and occupying a lot of uplink bandwidth

Method used

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Embodiment Construction

[0077] The ACK / NACK trigger mechanism in the present invention is the same as the event-driven ACK / NACK in the prior art, that is, when the MS finds that the received downlink has an error block or a missing block, it will immediately actively report the ACK according to the available uplink resources indicated by the USF on the network side / NACK information. The difference between the present invention and the event-driven ACK / NACK in the prior art is that when there is a TBF in the uplink, a separate complete ACK / NACK report is not used, but a small part of the data in the uplink RLC / MAC data block is used The space carries short ACK / NACK information and feeds back the status of the received downlink RLC / MAC data block. The ACK / NACK process of the present invention is shown in Figure 5, including:

[0078] The RLC / MAC layer on the network side sends the downlink RLC / MAC data block to the MS;

[0079] A downlink RLC / MAC data block received error;

[0080] The MS returns a...

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Abstract

The invention discloses a ACK / NACK method, which is used to control the receiving state of the mobile terminal MS feed wireless link control RLC / media interface control MAC data block, that includes: MS judges the upgoing existing the temporary block flow TBF or not, if yes, by upgoing RLC / MAC data block takes the short affirmance ACK / non-affirmance NACK information, feeds the receiving state of downgoing RLC / MAC data block. The ACK / NACK method provided by the invention, has the instaneity of the method of event driving ACK / NACK, if the upgoing TBF exists, it's no need to distribute the single upgoing wireless block for the ACK / NACK information, and improves the available bandwidth of upgoing TBF.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to an acknowledgment (Acknowledge, ACK for short) / Non-acknowledgement (Not Acknowledge, NACK for short) method. Background technique [0002] With the advancement of science and technology, people's requirements for mobile communication services and quality are also constantly increasing. Therefore, the demand for a smooth transition to the third-generation mobile communication technology was proposed. The main technologies for the evolution to 3G include General Packet Radio Service (GPRS), Enhanced Data rates for GSM Evolution (EDGE) And high-speed voice circuit switched data (High Speech Circuit Switched Data, HSCSD), etc., the research focuses on using limited spectrum resources to increase transmission rate and reduce transmission delay. [0003] GPRS is a packet data switching technology introduced in GSM network. It is superimposed on the GSM system and prolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/16
CPCH04L1/16
Inventor 房明柳光
Owner HUAWEI TECH CO LTD
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