WO2014102598A2 - Procédé de configuration d'ue pour découvrir et sélectionner le type de réseau d'accès - Google Patents

Procédé de configuration d'ue pour découvrir et sélectionner le type de réseau d'accès Download PDF

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Publication number
WO2014102598A2
WO2014102598A2 PCT/IB2013/002943 IB2013002943W WO2014102598A2 WO 2014102598 A2 WO2014102598 A2 WO 2014102598A2 IB 2013002943 W IB2013002943 W IB 2013002943W WO 2014102598 A2 WO2014102598 A2 WO 2014102598A2
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WIPO (PCT)
Prior art keywords
threshold
network
access
access network
select
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PCT/IB2013/002943
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English (en)
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WO2014102598A3 (fr
Inventor
Feng Han
Nicolas Drevon
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Alcatel Lucent
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Publication date
Application filed by Alcatel Lucent filed Critical Alcatel Lucent
Publication of WO2014102598A2 publication Critical patent/WO2014102598A2/fr
Publication of WO2014102598A3 publication Critical patent/WO2014102598A3/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • H04W48/04—Access restriction performed under specific conditions based on user or terminal location or mobility data, e.g. moving direction, speed

Definitions

  • the present invention relates to the wireless communication technology, and particularly to a method for configuring UE to discover and select the type of access network in a wireless communication network.
  • Fig. l illustrates a schematic diagram of a network architecture in the prior art, and as can be apparent, in such a network environment, a macro cell 110 provides underlying network coverage (as illustrated by a dotted background in the figure), and in the meantime, for example, small cells or WLAN access points 121 , 122, 123 and 124 at small power (that is, with small network coverage (areas illustrated by oblique lines in the figure) provide a possible network access at a higher speed. At this time, it is particularly important for the user experience of the UE 130 in the heterogeneous network 100 to reliably discover and select the network.
  • the ANDSF Access Network Discovery and Selection Function
  • the moving speed of the movable device is important for the selection of the access network, for example, a UE in a vehicle at a high speed selects a WLAN network which is not reachable in a certain time period and this will cause worse user experience such as network interruption when the UE drives out of the coverage of the selected WLAN network. Consequently, it is very important to take the moving speed of the UE into account when the UE discovers and selects access network and this will positively influence the conventional access network discovery and selection function to be improved.
  • a first aspect of the invention proposes a method for configuring UE to discover and select the type of access network in a wireless communication network, the method comprises the following steps:
  • the UE receiving a speed related static or semi-static policy from an access network discovery and selection function node or a policy management node;
  • the method according to the present invention takes moving speed of the UE into account to realize the access network discovery and selection function, so as to reasonably select the appropriate access network based on the speed of the UE.
  • network offloading and load balancing can be efficiently achieved by using the wireless communication network provided by the WLAN network or the small cell, on the other hand the user experience can also be improved significantly.
  • the wireless communication network is a heterogeneous mobile communication network and at least comprises a first access network with a first coverage and a second access network with a second coverage.
  • the method according to the present invention may be applied in the heterogeneous mobile communication network to improve the user experience.
  • the first access network is a macro cell and the second access network is a WLAN network
  • the policy contains a WLAN network threshold for WLAN network and a first access priority for the WLAN network and the first access priority in the step (b) is:
  • the UE correspondingly prioritizing to select the WLAN network as an access network, when the estimated moving speed of the UE is not higher than the WLAN network threshold.
  • the access network discovery and selection function node or the policy management node may distribute a network discovery and access policy to the UE in a heterogeneous network including WLAN network and macro cell and thus the UE may reasonably select a proper access network based on the policy and the speed of its self.
  • the WLAN network threshold includes a first threshold for a first traffic type and a second threshold for a second traffic type, when the UE supports to access the first access network and the second access network simultaneously, the first access priority in the step (b) is:
  • the UE for the first traffic type or the second traffic type, - the UE correspondingly prioritizing to select the macro cell as an access network, when the estimated moving speed of the UE is higher than the first threshold or the second threshold;
  • the UE correspondingly prioritizing to select the WLAN network as an access network, when the estimated moving speed of the UE is not higher than the first threshold or the second threshold .
  • the different network coverage and the types of the traffics on the UE are taken into account, so as to configure and select different access networks according to the requirement of network response, and thus to improve the utilization of the network and the user experience.
  • the first access network is a macro cell and the second access network is a small cell
  • the policy contains a small cell threshold for the small cell and a second access priority for the WLAN network and the second access priority in the step (b) is:
  • the UE correspondingly prioritizing to select the small cell as an access network, when the estimated moving speed of the UE is not higher than the small cell threshold.
  • the access network discovery and selection function node or the policy management node may distribute a network discovery and access policy to the UE in a heterogeneous network including small cell and macro cell and thus the UE may reasonably select a proper access network based on the policy and the speed of its self.
  • the small cell threshold contains a third threshold for a first traffic type and a fourth threshold for a second traffic type, when the UE supports to access the first access network and the second access network simultaneously, the second access priority in the step (b) is:
  • the UE correspondingly prioritizing to select the macro cell as an access network, when the estimated moving speed of the UE is higher than the third threshold or the fourth threshold respectively;
  • the UE correspondingly prioritizing to select the small cell as an access network, when the estimated moving speed of the UE is not higher than the third threshold or the fourth threshold respectively.
  • the different network coverage and the types of the traffics on the UE are taken into account, so as to configure and select different access networks according to the requirement of network response, and thus to improve the utilization of the network and the user experience.
  • the UE in the step (a) receives the speed related static or semi-static policy from the access network discovery and selection function node or the policy management node via an access network discovery information, an inter- system mobility policy or an inter-system routing policy.
  • the wireless communication network is WLAN network.
  • the method according to the present invention may be applied in the specification prescribed by the WiFi alliance, so as to optimize the access of the WLAN network.
  • the policy contains a WLAN network access threshold for WLAN network and a third access priority for the WLAN network and the third access priority in the step (b) is:
  • the UE prioritizing not to select the WLAN network as an access network, when the estimated moving speed of the UE is higher than the WLAN network access threshold;
  • the UE correspondingly prioritizing to select the WLAN network as an access network, when the estimated moving speed of the UE is not higher than the WLAN network access threshold.
  • the WLAN network access threshold includes a fifth threshold for a first traffic type and a sixth threshold for a second traffic type
  • the third access priority in the step (b) is:
  • the UE prioritizing not to select the WLAN network as an access network, when the estimated moving speed of the UE is higher than the fifth threshold or the sixth threshold respectively;
  • the UE prioritizing to select the WLAN network as an access network, when the estimated moving speed of the UE is not higher than the fifth threshold or the sixth threshold respectively.
  • the first traffic type is best-effort application and the second traffic type is QoS sensitive application, wherein the first threshold, the third threshold and the fifth threshold are higher than the second threshold, the fourth threshold and the sixth threshold respectively.
  • the method according to the present invention may be applied in WLAN network or heterogeneous network containing WLAN network and macro cell, small cell and macro cell, WLAN network and small cell and macro cell.
  • corresponding priority rules may be configured for different traffic types to discover and select the appropriate access network. Therefore, on one hand network offloading and load balancing can be efficiently achieved by using the wireless communication network provided by the WLAN network or the small cell, on the other hand the user experience can also be improved significantly.
  • Fig. l illustrates the schematic diagram 100 of the network architecture in the prior art
  • Fig.2 illustrates a flow diagram of a method according to the present invention.
  • Fig. l illustrates the schematic diagram 100 of the network architecture in the prior art, and this figure has been described in the section "Background of the invention", so a repeated description thereof will be omitted here.
  • Fig. 2 illustrates a flow diagram 200 of a method according to the present invention.
  • the method according to the present invention comprises the following steps:
  • the UE receives a speed related static or semi-static policy from an access network discovery and selection function node or a policy management node;
  • step 220 the UE estimates the moving speed of the UE and discover and select the appropriate type of access network based on the moving speed and the policy.
  • the method according to the present invention takes the moving speed of the UE into account to realize the access network discovery and selection function, so as to reasonably select the appropriate access network based on the speed of the UE.
  • network offloading and load balancing can be efficiently achieved by using the wireless communication network provided by the WLAN network or the small cell, on the other hand the user experience can also be improved significantly.
  • the wireless communication network is preferably a heterogeneous mobile communication network and at least comprises a first access network with a first coverage and a second access network with a second coverage.
  • the method according to the present invention may be applied in the heterogeneous mobile communication network to improve the user experience.
  • the first access network is a macro cell and the second access network is a WLAN network
  • the policy contains a WLAN network threshold for WLAN network and a first access priority for the WLAN network and the first access priority in the step 220 is:
  • the UE prioritizing to select the macro cell as an access network, when the estimated moving speed of the UE is higher than the WLAN network threshold;
  • the UE correspondingly prioritizing to select the WLAN network as an access network, when the estimated moving speed of the UE is not higher than the WLAN network threshold.
  • the access network discovery and selection function node or the policy management node may distribute a network discovery and access policy to the UE in a heterogeneous network including WLAN network and macro cell and thus the UE may reasonably select an appropriate access network based on the policy and the speed of its self.
  • the WLAN network threshold includes a first threshold for a first traffic type and a second threshold for a second traffic type, when the UE supports to access the first access network and the second access network simultaneously, the first access priority in the step 220 is: for the first traffic type or the second traffic type,
  • the UE appropriate prioritizing to select the macro cell as an access network, when the estimated moving speed of the UE is higher than the first threshold and the second threshold respectively;
  • the UE correspondingly prioritizing to select the WLAN network as an access network, when the estimated moving speed of the UE is not higher than the first threshold and the second threshold respectively.
  • the UE selects the macro cell as access network for the first traffic type and the second traffic type when the moving speed of the UE is higher than the first threshold and the second threshold; the UE selects the different access networks for the first traffic type and the second traffic type when the moving speed of the UE is between the first threshold and the second threshold, the detailed configuration depends on which of the first threshold and the second threshold is higher; the UE selects the WLAN network as access network for the first traffic type and the second traffic type when the moving speed of the UE is lower than the first threshold and the second threshold.
  • the different network coverage and the types of the traffics on the UE are taken into account, so as to configure and select different access networks according to the requirement of network response, and thus to improve the utilization of the network and the user experience.
  • the first access network is a macro cell and the second access network is a small cell
  • the policy contains a small cell threshold for the small cell and a second access priority for the WLAN network and the second access priority in the step 220 is:
  • the UE prioritizing to select the macro cell as an access network, when the estimated moving speed of the UE is higher than the small cell threshold;
  • the UE correspondingly prioritizing to select the small cell as an access network, when the estimated moving speed of the UE is not higher than the small cell threshold.
  • the access network discovery and selection function node or the policy management node may distribute a network discovery and access policy to the UE in a heterogeneous network including small cell and macro cell and thus the UE may reasonably select an appropriate access network based on the policy and the speed of its self.
  • the small cell threshold contains a third threshold for a first traffic type and a fourth threshold for a second traffic type, when the UE supports to access the first access network and the second access network simultaneously, the second access priority in the step 220 is:
  • the UE correspondingly prioritizing to select the small cell as an access network, when the estimated moving speed of the UE is not higher than the third threshold or the fourth threshold respectively.
  • the UE selects the macro cell as access network for the first traffic type and the second traffic type when the moving speed of the UE is higher than the third threshold and the fourth threshold; the UE selects the different access networks for the first traffic type and the second traffic type when the moving speed of the UE is between the third threshold and the fourth threshold, the detailed configuration depends on which of the third threshold and the fourth threshold is higher; the UE selects the small cell as access network for the first traffic type and the second traffic type when the moving speed of the UE is lower than the third threshold and the fourth threshold.
  • the heterogeneous wireless communication network may be a heterogeneous network comprising WLAN network, small cell and macro cell or a heterogeneous communication network including further more types of network
  • a network threshold is configured for each of the network types and the network threshold is configured depending on the transmitting power of the access point.
  • different network access thresholds may be configured for different traffic types.
  • the priority may be configured as different grade such as highest/higher/middle/lower/lowest based on the requirements and moving speed.
  • the UE receives the speed related static or semi- static policy from the Access Network Discovery and Selection Function node or the policy management node via an access network discovery information, an inter-system mobility policy or an inter-system routing policy.
  • the wireless communication network is WLAN network.
  • the method according to the present invention may be applied in the specification (such as WiFi Hotspot 2.0) prescribed by the WiFi alliance, so as to optimize the access of the WLAN network.
  • the policy contains a WLAN network access threshold for WLAN network and a third access priority for the WLAN network and the third access priority in the step 220 is:
  • the UE prioritizing not to select the WLAN network as an access network, when the estimated moving speed of the UE is higher than the WLAN network access threshold;
  • the UE correspondingly prioritizing to select the WLAN network as an access network, when the estimated moving speed of the UE is not higher than the WLAN network access threshold.
  • the WLAN network access threshold contains a fifth threshold for a first traffic type and a sixth threshold for a second traffic type
  • the third access priority in the step 220 is:
  • the UE prioritizing not to select the WLAN network as an access network, when the estimated moving speed of the UE is higher than the fifth threshold or the sixth threshold respectively;
  • the method according to the present invention may be applied in a heterogeneous wireless communication network or pure WLAN network, so as to initially reduce the load for WLAN network due to handover.
  • the first traffic type is a best-effort application and the second traffic type is a QoS sensitive application, wherein the first threshold, the third threshold and the fifth threshold are higher than the second threshold, the fourth threshold and the sixth threshold, respectively.
  • the method according to the present invention may be applied in WLAN network or heterogeneous network containing WLAN network and macro cell, small cell and macro cell, WLAN network and small cell and macro cell.
  • corresponding priority rules may be configured for different traffic type to discover and select the proper access network. Therefore, on one hand network offloading and load balancing can be efficiently achieved by use of the wireless communication network provided by the WLAN network or the small cell and on the other hand the user experience can also be improved significantly.

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

Abstract

L'invention porte sur un procédé de configuration d'un équipement utilisateur (UE) pour découvrir et sélectionner le type de réseau d'accès dans un réseau de communication sans fil, le procédé comprenant les étapes suivantes : l'UE reçoit une politique statique ou semi-statique relative à la vitesse en provenance d'un nœud à fonction de découverte et de sélection de réseau d'accès (ANDSF) ou d'un nœud de gestion de politique ; et estimation de la vitesse de déplacement de l'UE et découverte et sélection du type approprié de réseau d'accès sur la base de la vitesse de déplacement et de la politique. Le procédé selon la présente invention prend en considération la vitesse de déplacement de l'UE pour réaliser la fonction de découverte et de sélection de réseau d'accès, de manière à sélectionner raisonnablement le réseau d'accès approprié sur la base de la vitesse de l'UE. Ainsi, d'une part un délestage et un équilibrage de charge de réseau peuvent être efficacement réalisés par utilisation du réseau de communication sans fil fourni par le réseau WLAN ou la petite cellule, d'autre part l'expérience utilisateur peut également être sensiblement améliorée.
PCT/IB2013/002943 2012-12-26 2013-12-20 Procédé de configuration d'ue pour découvrir et sélectionner le type de réseau d'accès WO2014102598A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210576995.7 2012-12-26
CN201210576995.7A CN103906193A (zh) 2012-12-26 2012-12-26 配置用户设备进行接入网络类型发现和选择的方法

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WO2014102598A3 WO2014102598A3 (fr) 2014-10-23

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CN107231634B (zh) * 2017-05-31 2020-03-20 北京邮电大学 一种车载通信系统中的频谱资源分配方法及装置
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WO2014102598A3 (fr) 2014-10-23

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