Method and device for frame acknowledgment

a frame acknowledgment and frame technology, applied in the field of wireless communication, can solve the problems of unoptimized system characteristics for short-range wireless communication scenario, difficult to meet current and future rapid development of multimedia traffic demands, and bottlenecks in network performance, so as to save transmission resources efficiently

Inactive Publication Date: 2016-06-09
NUFRONT MOBILE COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this patent text is to provide a method and device for frame acknowledgement to ensure the efficient transmission of data. This can save transmission resources and provide a response mode for successful data transmission.

Problems solved by technology

So for conventional WLAN systems, MAC layer design of a single-user access network based on CSMA / CA (Carrier Sense Multiple Access with Collision Avoidance) is bottleneck of network performance.
Thus, although existing Wi-Fi techniques provide user with cheap access way to some degree, but is hard to accommodate current and future rapid development of high rate multimedia traffic demands.
Since 3G / LTE / WiMAX system primarily apply to wide area coverage mobile communication scenario, system characteristics for short-range wireless communication scenario is not optimized.
Meanwhile, strict requirement of synchronization in complicated upper layer protocol design and PHY layer based 3G / LTE / WiMAX, results in equipment costs that cannot be as cheap as 802.11.

Method used

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  • Method and device for frame acknowledgment
  • Method and device for frame acknowledgment
  • Method and device for frame acknowledgment

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

The First Embodiment

[0041]The embodiment of this Invention provides a method for frame acknowledgement. which is not only suitable for the management frame but also appropriate for the data frame. After transmitting frame from transmitting terminal, the receiving terminal should return an acknowledgement to inform the transmitting terminal whether said data has been received successfully, then it could carry out an efficient monitoring of the data transmission.

[0042]Refer to the FIG. 1, this figure shows a method for frame acknowledgement in one embodiment of this Invention. It includes the following steps:

[0043]Step S101: Encapsulating the acknowledgement of one or multiple frames as Group Acknowledgement (GroupAck);

[0044]Wherein, said acknowledgement of the frame is used to instruct the receiving state of the frame, which includes received and not received.

[0045]Step S102: transmitting said group acknowledgement.

[0046]The embodiment of this Invention provides a response mode of gr...

second embodiment

The Second Embodiment

[0075]To the management control frame, the unicast management frame, which has no corresponding response frame, needs to acknowledge by using ACK or group acknowledgement (GroupAck). Otherwise, it will use corresponding response frame acknowledgement directly.

[0076]The embodiment of this invention also provides some management request frame and the corresponding response frame thereof, as shown in the Table 2. Meanwhile, in another embodiment, it also can assign other management request frame and the corresponding response thereof according to the requirement. This invention doesn't do any limitation here.

TABLE 2Request FrameCorresponding Response FrameRandom Access Request Frame Random Access Response Frame (RA_REQ)(RA_RSP)Terminal Basic Capability Terminal Basic Capability Negotiation Request (SBC_REQ)Negotiation Response (SBC_RSP)Uplink Dynamic Service Access Dynamic Service Access ResponseRequest (DSA_REQ)(DSA_RSP)Uplink Dynamic Service Change Dynamic Servic...

third embodiment

The Third Embodiment

[0084]The embodiment of this invention provides a retransmission method, as shown in FIG. 4. It includes the following steps:

[0085]Step S401: caching the transmitted frame;

[0086]Step S402: receiving and analyzing the frame acknowledge response;

[0087]Step S403: retransmitting the cached unacknowledged received frame.

[0088]The retransmitted data of the retransmission method provided by the embodiment of this invention is maintained by transmitting end. During the retransmitting, it only retransmits the unacknowledged received frame and it will not retransmit the received frame. Especially when it retransmits data according to the default window, it allows to not retransmit the acknowledged and received frame in the window. It saves transmission resource greatly.

[0089]Preferably, the acknowledged and received frame in the buffered frame can be deleted so that it can save the local cache efficiently.

[0090]Preferably, it can encapsulate one or multiple continuous fram...

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Abstract

A method for frame acknowledgement, comprising caching the unacknowledged frame; determining whether a caching capacity threshold is reached; bearing an immediate acknowledgement instruction into a data frame, and sending the data frame the caching capacity threshold is reached; wherein, the immediate acknowledgement instruction is for use in instructing a return acknowledge response of all unacknowledged frames in a specified physical frame period.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application is a continuation application of U.S. patent application Ser. No. 14 / 008,327 filed on Dec. 3, 2013, now allowed, and titled “METHOD AND DEVICE FOR FRAME ACKNOWLEDGEMENT” which claims priority of PCT / CN2012 / 072895 filed on Mar. 23, 2013, Chinese Application No. 201210053116.2 filed on Mar. 2, 2012, Chinese Application No. 201210027919.0 filed on Feb. 8, 2012, Chinese Application No. 201110189230.3 filed on Jul. 6, 2011, Chinese Application No. 201110130194.3 filed on May 19, 2011, and Chinese Application No. 201110081288.6 filed on Mar. 31, 2011, the disclosure of all are hereby incorporated by reference herein in their entirety.FIELD OF THE INVENTION[0002]This Invention belongs to the field of wireless communication, especially related to the method and device for the frame acknowledgement.BACKGROUND OF THE INVENTION[0003]Over the recent years, wireless network technology include the wireless LAN technique WiFi that is bas...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): H04L1/16H04L12/26
CPCH04L1/1621H04L2212/00H04L43/16H04L1/1685H04L1/1854H04L1/1825H04L5/0055H04W72/21
InventorBAO, DONGSHANZHOU, YUBAOYAO, HUIJUANYU, XIAOYANLIU, SHENFAYAN, DESHENGYANG, ZHIZUO
OwnerNUFRONT MOBILE COMM TECH