WO2013048228A1 - Planification inter-couches, en particulier pour wimax mobile - Google Patents

Planification inter-couches, en particulier pour wimax mobile Download PDF

Info

Publication number
WO2013048228A1
WO2013048228A1 PCT/MY2012/000153 MY2012000153W WO2013048228A1 WO 2013048228 A1 WO2013048228 A1 WO 2013048228A1 MY 2012000153 W MY2012000153 W MY 2012000153W WO 2013048228 A1 WO2013048228 A1 WO 2013048228A1
Authority
WO
WIPO (PCT)
Prior art keywords
channel
quality
qos
traffic
transmission
Prior art date
Application number
PCT/MY2012/000153
Other languages
English (en)
Inventor
Hafizal MOHAMAD.DIN
Wahidah Hashim
Nordin Ramli
Original Assignee
Mimos Berhad
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mimos Berhad filed Critical Mimos Berhad
Publication of WO2013048228A1 publication Critical patent/WO2013048228A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/50—Queue scheduling
    • H04L47/56—Queue scheduling implementing delay-aware scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/50—Queue scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/50—Queue scheduling
    • H04L47/62—Queue scheduling characterised by scheduling criteria
    • H04L47/625—Queue scheduling characterised by scheduling criteria for service slots or service orders
    • H04L47/626—Queue scheduling characterised by scheduling criteria for service slots or service orders channel conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria

Definitions

  • the present invention relates to a method and system of a method and system of allocating an appropriate quality of service (QoS) of data traffic based on quality of transmission for wireless communications.
  • QoS quality of service
  • US2007/0189235 describes a solution of processing communication data in a hierarchy of processing layers including a physical (PHY) layer, a medium access control (MAC) layer and higher layers.
  • PHY physical
  • MAC medium access control
  • the prior art focuses more on sharing of resources in channel selection. This is not a very effective solution.
  • a method of allocating an appropriate quality of service (QoS) of data traffic based on quality of transmission for wireless communications includes the steps of matching a plurality of interference parameters at each node of network, determining at least one channel and interference condition, matching at least one channel with QoS policy, adapting channel selection with channel quality and interference condition with time varying conditions and transmitting signal based on using an appropriate QoS policy based on traffic quality.
  • QoS quality of service
  • QoS quality of service
  • the system includes a resource manager, a QoT manager and a cognitive module; wherein the QoT manager further includes a plurality of channel and interference parameters, wherein the cognitive module further includes a ranking channel module and mechanism.
  • FIG. 1 shows a block diagram of a quality of service (QoS) allocation system of data traffic based on quality of trans mission for wireless communications in the preferred embodiment of the invention
  • FIG. 2 shows a flowchart of a method of allocating an appropriate quality of service (QoS) of data traffic based on quality of transmission for wireless communications in the preferred embodiment of the invention
  • Figure 3 shows a flowchart of the method of selecting and allocating channel and interference condition
  • Figure 4 shows an illustration of a wireless network
  • Figure 5 shows a schematic of two backhaul points with 12 interfering nodes
  • Figure 6 shows a graphical representation of a comparison between prior art and the preferred embodiment of the invention.
  • the present invention relates to a method and system of allocating an appropriate quality of service (QoS) of data traffic based on quality of transmission for wireless communications.
  • QoS quality of service
  • Figure 2 shows a method of allocating an appropriate quality of service (QoS) of data traffic based on quality of transmission for wireless communications.
  • the method includes the steps of matching a plurality of interference parameters at each node of network, determining at least one channel and interference condition, matching at least one channel (CH) with QoS policy, adapting channel selection with channel quality and interference (INTF) condition with time varying conditions and transmitting signal based on using an appropriate QoS policy based on traffic quality.
  • the method further includes the steps of ranking the at least one channel according to frequency and storing ranking details in a database.
  • the method provides a forming of communication links among all nodes in the network. This includes network entry procedure and authentication to initiate default channel operation for control signals to be established between various nodes. There is also included identifying and grouping of different traffic classes according to the specified QoS policy. This will take into account various QoS parameters such as, but not limited to, bandwidth, delay, packet loss rate and jitter. In practice, different service and application such as video streaming, voice over IP, file download, email and web browsing which has different requirements in terms of expected delay and error rate.
  • the method includes scanning of channel and interference condition to identify available bandwidth in the interference limited system.
  • the available bandwidth is mapped into the required bandwidth in which the process will be dynamic in nature as users will join and leave the network as they wish. This function is performed by resource manager in each wireless node.
  • a QoT manager determines important parameters such as, but not limited to, Signal-to- Noise Ratio(SNR), received signal strength indicator (RSSI), Channel Quality Indicator (CQI), Signal to Interference-plus-Noise Ratio (SINR), Carrier to Interference-plus-Noise Ratio (CINR) and interference temperature (I.Temp).
  • SNR Signal-to- Noise Ratio
  • RSSI received signal strength indicator
  • CQI Channel Quality Indicator
  • SINR Signal to Interference-plus-Noise Ratio
  • SINR Signal to Interference-plus-Noise Ratio
  • CINR Carrier to Interference-plus-Noise Ratio
  • I.Temp interference temperature
  • QoT manager measures SNR, RSSI, CQI of the desired signal and measures SNIR, CIR of the interferers (interference power). This is subject to number of interfering nodes and their power accumulates to calculate I.Temp.
  • selecting and allocating of suitable channel to carry specific traffic type is performed by cognitive module as seen in Figure 3. This is very crucial to ensure all traffic are treated according to the QoS requirements and is mapped into the selected channel systematically. Due to time varying in wireless communications, a monitoring procedure is established to check if channel are deteriorating due to interference (channel condition and interference factors are changing). If the condition gets worse, then the channel selection and allocation procedure need to be repeated. The cognitive module has to ensure that channel(CH) and INTF are above the specified threshold. If the condition drops below threshold, then trigger changes to new CH. Finally the signals are transmitted based on QoT and QoS requirements. Figure 3 shows the step of selecting and allocating based on channel and interference condition.
  • the operation starts with determining channel rank according to the available channel and bandwidth with respect to the parameters gathered by QoT manager.
  • the number of channels, number of nodes and the frequency used by them are stored in the database to collect information about spatial temporal correlation. This includes frequency used (no. of times) and tracking probability based on posteriori information. Hence it will reduce the requirements to update the database.
  • the cognitive module will group and sort available channels according to CH/INTF parameters, whereby it will select and determine CH based on transmission and service quality. Further the operation to match available channel based on current transmission (QoT) to meet the expected service quality (QoS) is performed. This is important as the adjustment may need to be executed if the available channel is limited in the presence of high demand for bandwidth. If the bandwidth is limited, the module will give priority to the first traffic class. The method assigns the best available channel to the highest traffic priority. The process continues for other traffic priority accordingly. Finally, the allocation of channel is performed based on channel / interference conditions and specified bandwidth.
  • Figure 1 shows a quality of service (QoS) allocation system of data traffic based on quality of transmission for wireless communications.
  • the system includes a resource manager, a QoT manager and a cognitive module; wherein the QoT manager further includes a plurality of channel and interference parameters, wherein the cognitive module further includes a ranking channel module and mechanism.
  • the function of resource manager is to scan available transmission channel and detect interfering signals. This is useful to understand the environment in which the wireless node is located. For example, in a dense urban scenario, the number of available channel and bandwidth maybe limited due to large number of users available.
  • the wireless node through resource manager, needs to determine the available and the required bandwidth. This information is very important as they are dynamic and sufficient resource (bandwidth) is necessary to ensure all communications are continuous without interruption.
  • QoT manager is responsible to collect and update parameters related to channel conditions such as CQi, RSSI and SNR.
  • the QoT manager also gathers parameter such as SNIR and CIR which describe the severity of the interference at that node in a particular time. This information is useful to determine the inference temperature (I.Temp) which will be employed to determine the channel selection and allocation in cognitive module.
  • I.Temp inference temperature
  • the main function of cognitive module is to perform channel selection and allocate suitable QoS based on QoT parameters.
  • This module consists of CH rank mechanism utilizing spatial temporal and a priori information to enable learning and decision based on the available frequency and bandwidth. Due to time varying nature of wireless communication system, the module needs to check if the channel condition is still in good condition and if the interference condition is still at acceptable level. Subsequently, CH allocation mechanism will provide the appropriate matching of the high QoS policy with the best channel.
  • FIG 4 Illustration of wireless network is shown in Figure 4, with one base station located on the left and three backhaul points or wireless nodes connected to the base station in multihop fashioned.
  • This invention can be applied to any wireless networks, whereby a generic wireless transmission between two points is depicted in Figure 5.
  • the interfering power varies with time and location, whereby this is illustrated by denoting dark color circle (located near BP) as having higher interference power to the BP.
  • Wireless transmission can be categorized as either using dedicated channel and shared/contention channel in licensed and unlicensed band, respectively. It is difficult to guarantee a good channel quality in the case of unlicensed band due to improper coordination among the wireless nodes and they are also exposed to interference from neighboring nodes.
  • Various service and applications in wireless system are classified based on their quality of service (QoS). The problem occurs when the high priority traffic is assigned to low quality channel for transmission. It will result in high delay and high error rate. This is unacceptable in wireless multimedia transmission. This motivates our invention whereby the main differences between conventional and proposed method is shown in Figure 6.
  • QoS quality of service
  • MAC layer different traffic types are classified accordingly. This will be based on the scheduler whereby different system employs different way of implementing this scheduler. For instance in WiMAX there are unsolicited grant service (UGS) for the constant bit rate (CBR) service, real-time polling service (rtPS) for the variable bit rate (VBR) service, non-real-time polling service (nrtPS) for non-real-time VBR, and best effort service (BE).
  • UMS unsolicited grant service
  • CBR constant bit rate
  • rtPS real-time polling service
  • VBR variable bit rate
  • nrtPS non-real-time polling service
  • BE best effort service
  • transmission of signals for wireless communication system is subject to multiple propagation factors such as reflection, diffraction, scattering and terrain condition.
  • Signal transmission and reception in time-varying wireless environment is also influenced by fading, shadowing and interference effects. It is important for the MAC and PHY layer to interact, collaborate and exchange information based on quality of transmission (by determining the channel quality and interference condition.
  • the quality of service will be assigned according to channel ranking, whereby high priority traffic will be assigned with best channel available.
  • This invention is adapted for use for assigning a channel based on quality of service and quality of transmission.
  • the disclosed invention is suitable, but not restricted to, for use in wireless networks.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne la planification du trafic de données en termes de qualité de service (QoS - Quality of Service), en particulier pour le planificateur entre la couche MAC et PHY dans WiMAX Mobile. Une priorité de trafic différente est transmise à l'aide du canal disponible au sein du système, et ne s'appuie pas sur les conditions existant sur le canal de transmission. En pratique, certains canaux sont supérieurs à d'autres, mais le trafic dans son ensemble n'a pas la même priorité. Un problème survient lorsqu'un trafic hautement prioritaire est affecté à un canal sur lequel de mauvaises conditions prévalent : cela risque d'entraîner une mauvaise qualité du signal au niveau du récepteur. Par exemple, le trafic hautement prioritaire peut nécessiter un léger retard. Mais s'il est transmis via un canal erroné, le signal reçu contiendra un nombre élevé d'erreurs et il y aura une perte de transmission. Ce problème est également dû à un manque de communication inter-couches dans le système sans fil. Il peut être résolu si le planificateur (affectation CH) affecte le trafic non seulement sur la base du paramètre de qualité de service (QoS), mais également en fonction des conditions variables des canaux (QoT).
PCT/MY2012/000153 2011-09-29 2012-06-28 Planification inter-couches, en particulier pour wimax mobile WO2013048228A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MYPI2011700145A MY178763A (en) 2011-09-29 2011-09-29 A method of allocating quality of service based on quality of transmission
MYPI2011700145 2011-09-29

Publications (1)

Publication Number Publication Date
WO2013048228A1 true WO2013048228A1 (fr) 2013-04-04

Family

ID=46727519

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/MY2012/000153 WO2013048228A1 (fr) 2011-09-29 2012-06-28 Planification inter-couches, en particulier pour wimax mobile

Country Status (2)

Country Link
MY (1) MY178763A (fr)
WO (1) WO2013048228A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015114466A3 (fr) * 2014-01-28 2015-11-26 King Abdullah University Of Science And Technology Dimensionnement de memoire tampon pour reseaux multi-sauts
US10075671B2 (en) 2016-09-26 2018-09-11 Samsung Display Co., Ltd. System and method for electronic data communication
US10469857B2 (en) 2016-09-26 2019-11-05 Samsung Display Co., Ltd. System and method for electronic data communication
US10523895B2 (en) 2016-09-26 2019-12-31 Samsung Display Co., Ltd. System and method for electronic data communication
CN110875754A (zh) * 2018-08-29 2020-03-10 瑞昱新加坡有限公司 可提升数据传输效能的无线通信电路
US10616383B2 (en) 2016-09-26 2020-04-07 Samsung Display Co., Ltd. System and method for electronic data communication
CN113473539A (zh) * 2021-05-31 2021-10-01 荣耀终端有限公司 一种数据传输方法及电子设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006051149A1 (fr) * 2004-11-15 2006-05-18 Nokia Corporation Planification des ressources de communication
US20070189235A1 (en) 2006-02-03 2007-08-16 Interdigital Technology Corporation Quality of service based resource determination and allocation apparatus and procedure in high speed packet access evolution and long term evolution systems

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006051149A1 (fr) * 2004-11-15 2006-05-18 Nokia Corporation Planification des ressources de communication
US20070189235A1 (en) 2006-02-03 2007-08-16 Interdigital Technology Corporation Quality of service based resource determination and allocation apparatus and procedure in high speed packet access evolution and long term evolution systems

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"WiMAX Security and Quality of Service", 31 May 2010, JOHN WILEY & SONS, LTD, Chichester, UK, ISBN: 978-0-47-072197-1, article NEILA KRICHENE ET AL: "QoS in Mobile WiMAX", pages: 145 - 178, XP055040762 *
WIMAX FORUM: "Mobile WiMAX - Part I: A Technical Overview and Performance Evaluation", INTERNET CITATION, 1 August 2006 (2006-08-01), pages 1 - 53, XP002545792, Retrieved from the Internet <URL:http://www.wimaxforum.org/technology/downloads/Mobile_WiMAX_Part1_Overview_and_Performance.pdf> [retrieved on 20090914] *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015114466A3 (fr) * 2014-01-28 2015-11-26 King Abdullah University Of Science And Technology Dimensionnement de memoire tampon pour reseaux multi-sauts
US10075671B2 (en) 2016-09-26 2018-09-11 Samsung Display Co., Ltd. System and method for electronic data communication
US10469857B2 (en) 2016-09-26 2019-11-05 Samsung Display Co., Ltd. System and method for electronic data communication
US10523895B2 (en) 2016-09-26 2019-12-31 Samsung Display Co., Ltd. System and method for electronic data communication
US10594977B2 (en) 2016-09-26 2020-03-17 Samsung Display Co., Ltd. System and method for electronic data communication
US10616383B2 (en) 2016-09-26 2020-04-07 Samsung Display Co., Ltd. System and method for electronic data communication
US10911763B2 (en) 2016-09-26 2021-02-02 Samsung Display Co., Ltd. System and method for electronic data communication
CN110875754A (zh) * 2018-08-29 2020-03-10 瑞昱新加坡有限公司 可提升数据传输效能的无线通信电路
CN110875754B (zh) * 2018-08-29 2021-08-27 瑞昱新加坡有限公司 可提升数据传输效能的无线通信电路
CN113473539A (zh) * 2021-05-31 2021-10-01 荣耀终端有限公司 一种数据传输方法及电子设备
CN113473539B (zh) * 2021-05-31 2022-07-05 荣耀终端有限公司 一种数据传输方法及电子设备

Also Published As

Publication number Publication date
MY178763A (en) 2020-10-20

Similar Documents

Publication Publication Date Title
US9763257B2 (en) Method and apparatus for self organized network
Alshamrani et al. QoS provisioning for heterogeneous services in cooperative cognitive radio networks
WO2013048228A1 (fr) Planification inter-couches, en particulier pour wimax mobile
JP5113184B2 (ja) サブ帯域に依存するアップリンク負荷管理
US8134984B2 (en) Conversion of access nodes to gateways within a wireless mesh network
JP2010508792A (ja) サブ帯域依存のリソース管理
KR100736728B1 (ko) 광대역 무선접속 시스템의 대역 적응적 변조 및 코딩모드에서 자원 할당 장치 및 방법
JP2007195175A (ja) セルラーｏｆｄｍ通信システム、ならびにこれの基地局および移動局において干渉を最小化するための方法
Belikaidis et al. Management of 3.5-GHz spectrum in 5G dense networks: A hierarchical radio resource management scheme
He et al. Quality of experience driven multi-user video streaming in cellular cognitive radio networks with single channel access
Bouhafs et al. Per-flow radio resource management to mitigate interference in dense IEEE 802.11 wireless LANs
Mansouri et al. Radio resource management for heterogeneous wireless networks: Schemes and simulation analysis
Kaniezhil et al. Performance analysis of wireless network with opportunistic spectrum sharing via cognitive radio nodes
WO2014047873A1 (fr) Procédé de signalisation et appareils prenant en charge l&#39;allocation de ressources radio sensible à la qoe
EP3114894B1 (fr) Point de transmission sans coupure et procédé d&#39;association d&#39;équipement d&#39;utilisateur pour la virtualisation d&#39;un accès radio
Liotou et al. Ant colony optimization for resource sharing among D2D communications
Lee Spectrum management in cognitive radio wireless networks
Bojović et al. Bayesian and neural network schemes for call admission control in lte systems
Đào et al. Radio access network coordination framework toward 5G mobile wireless networks
Ruiz Performances des réseaux LTE
Vega et al. Resource allocation in optical beam-steered indoor networks
Martínez et al. Interference-Aware Dynamic Channel allocation scheme for cellular networks
Papageorgiou et al. Coordinating the sdn and tdma planes in software-defined tactical manets with adaptive coding and modulation
Xu et al. Research on cognitive wireless networks: Theory, key technologies and testbed
Trabelsi et al. Dynamic scheduling algorithm based on NOMA access and priority assignment for V2X communications

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12750841

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12750841

Country of ref document: EP

Kind code of ref document: A1