[go: up one dir, main page]

WO2008113259A1 - Dispositif et procédé permettant de sélectionner un mode de transmission/changer de mode de transmission - Google Patents

Dispositif et procédé permettant de sélectionner un mode de transmission/changer de mode de transmission Download PDF

Info

Publication number
WO2008113259A1
WO2008113259A1 PCT/CN2008/000547 CN2008000547W WO2008113259A1 WO 2008113259 A1 WO2008113259 A1 WO 2008113259A1 CN 2008000547 W CN2008000547 W CN 2008000547W WO 2008113259 A1 WO2008113259 A1 WO 2008113259A1
Authority
WO
WIPO (PCT)
Prior art keywords
cell
transmission mode
cells
mode selection
determining unit
Prior art date
Application number
PCT/CN2008/000547
Other languages
English (en)
Chinese (zh)
Inventor
He Wang
Hua Chao
Zhongji Hu
Yu Chen
Original Assignee
Alcatel Shanghai Bell Co., Ltd.
Alcatel Lucent
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 Alcatel Shanghai Bell Co., Ltd., Alcatel Lucent filed Critical Alcatel Shanghai Bell Co., Ltd.
Publication of WO2008113259A1 publication Critical patent/WO2008113259A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast

Definitions

  • the present invention generally relates to the field of wireless communications, and more particularly to a transmission mode selection/switching apparatus, a radio configuration setting apparatus, a multi-cell/multimedia coordination apparatus, and a transmission mode selection/switching method.
  • Multi-cell transmission and single-cell transmission are defined.
  • SFN single frequency network
  • Multi-cell transmissions utilize SFN operations to improve cell edge performance by combining signals from other cells.
  • SFN operation requires an additional synchronization mechanism and requires greater transmit power on the MTCH (MBMS (Multicast Broadcast Multicast Service) point-to-multipoint traffic channel) to cover the cell edge.
  • MTCH Multicast Broadcast Multicast Service
  • Single cell transmission is similar to unicast services for some special service needs and fewer user conditions.
  • the overall performance of a single cell transmission may not be as good as multi-cell transmission, but single cell transmission may employ techniques such as HARQ (Hybrid Automatic Repeat Request) to improve the QoS (Quality of Service) of the MBMS service for a single user.
  • HARQ Hybrid Automatic Repeat Request
  • E-MBMS evolved MBMS
  • the transmission mode of E-MBMS is determined by service characteristics, network deployment status, and user distribution.
  • the transmission mode of the MBMS service will dynamically change according to the actual situation during the session period.
  • E-MBMS single cell transmission deployment scenario will be described, and the transmission mode selection and handover decisions will be discussed.
  • E-MBMS single cell transmission is independent of the physical layer synchronization state of the eNB (Evolved Base Station).
  • the E-MBMS single cell transmission mode can be applied regardless of whether the eNB is synchronized.
  • single-cell transmission does not mean that the transmission area of the MBMS service is limited to only one cell coverage. within the area. Some neighboring coverage cells may also utilize a single cell transmission mode. In this case, single cell transmission is performed cell by cell, and each cell performs its own single cell transmission.
  • FIG. 1 shows an example of an E-MBMS single cell transmission deployment scenario.
  • the single cell transmission area may be located in a cell within the multi-cell MBMS synchronization area (cell shown by reference numeral 1);
  • the single cell transmission area may be located in a cell outside the multi-cell MBMS synchronization area (cell shown by reference numeral 2);
  • a single cell transmission area may not be located in a cell within the SFN area
  • the single cell transmission area may be located in a cell within the largest SFN area except the SFN area, but in the largest SFN area, the cells transmitted by the single cell do not have adjacent boundaries with each other, gp, and these cells should be separated from each other (cell shown by reference numeral 3);
  • a single cell transmission area may be located in a cell within the SFN protection area (cell shown by reference numeral 4);
  • the single cell transmission area does not have to be confined to only one cell coverage area, or may be a continuous coverage area of several cells (area indicated by reference numeral 5);
  • - a plurality of cells belonging to one single cell transmission area may be cells of the same eNB, or may not;
  • a transmission mode selection/switching device In the present invention, a transmission mode selection/switching device, a radio configuration setting device, a multi-cell/multimedia coordination device, and a transmission mode selection/switching method are proposed.
  • a transmission mode selection/switching apparatus including: an overlapping area determining unit, configured to determine an overlapping area of a service area of a predetermined multimedia broadcast multicast service and a maximum single frequency network; a location determining unit, configured to divide a cell in a service area of the predetermined multimedia broadcast multicast service into a cell in an overlapping area and a cell not in an overlapping area; and not in the overlapping area
  • the cell notifies the transmission mode determining/determining unit, and notifies the cell in the overlapping area to the cell distribution status determining unit;
  • the cell distribution status determining unit is configured to have the predetermined multimedia broadcast multicast industry
  • the cells of the user interested in the user are divided into non-contiguous cells that are not adjacent to cells of other users with interest and neighboring cells that are adjacent to cells of other users with interest; and non-contiguous cells and neighboring cells
  • the information is notified to the transmission mode determining/determining unit; and the transmission mode determining/determining unit is configured to not notify the cell
  • a radio configuration setting apparatus comprising: a transmission mode selection/switching apparatus according to the first aspect of the present invention, when receiving a multimedia broadcast for the predetermined multimedia broadcast multicast service The transmission mode selection/switching device is triggered when the multicast service session initiates/updates a message.
  • a multi-cell/multimedia coordination device including: a radio configuration setting apparatus according to a second aspect of the present invention; and a memory for storing mapping relationship information of a service area and a cell, The mapping relationship information of the largest single frequency network area and the cell, and the neighbor cell list of each cell.
  • a transmission mode selection/switching method comprising: receiving a multimedia broadcast multicast service session initiation/update message for a predetermined multimedia broadcast multicast service: determining the predetermined multimedia broadcast multicast service Intersecting the service area with the largest single frequency network; dividing the cells in the service area of the predetermined multimedia broadcast multicast service into cells in the overlapping area and cells not in the overlapping area; The cell of the user interested in the predetermined multimedia broadcast multicast service is divided into non-contiguous cells not adjacent to cells of other users having interest and neighboring cells adjacent to cells of other users having interest; The cells not in the overlap region and the non-contiguous cells select a single cell transmission mode, and for the neighboring cells, select a multi-cell transmission mode.
  • Figure 1 shows an example of an E-MBMS single cell transmission deployment scenario.
  • Fig. 2 is a diagram showing the basic structure related to transmission mode selection in the MCE.
  • Figure 3 shows the basic flow of the transmission mode selection process for one MBMS service.
  • FIG. 4 shows the basic flow of a transmission mode switching process for one MBMS service. detailed description
  • the transmission mode is a concept related to the RAN (Radio Access Network) and is one of the radio configuration parameters for the E-MBMS service.
  • MCE Multi-cell/Multicast Co-ordination Entity
  • R3-062015 "LS on LTE-MBMS Discussions in RAN3", November 2006
  • the transmission mode selection can be in MCE In progress.
  • a service session can have both a single cell transmission mode and a multi-cell transmission mode in different transmission areas. Some cell coverage areas in the SA (Service Area) may employ a single cell transmission mode, while other cell coverage areas may employ a multi-cell transmission mode.
  • the MCE When the MCE receives the MBMS service session start/update message from the SAE GW (System Architecture Evolution Gateway), the MCE initiates radio configuration setup processing and service scheduling processing, including transmission mode selection, and includes the final result of the transmission mode selection.
  • the radio configuration parameters of the MBMS service are sent to the involved eNB.
  • the main factors affecting the choice of launch mode include:
  • SA Service Area
  • the SA defines the largest area for this service transmission, and only those cells located in the area where the SA and the largest SFN area overlap each other can adopt the multi-cell transmission mode. However, it is also necessary to judge the adjacency status of these cells by the neighbor cell relationship and the counting result.
  • the counting result reflects whether there is at least one user in the cell. A cell that does not have a user does not need to transmit this service data, and affects connectivity between other cells.
  • a cell located in the overlapping area of the SA and the largest SFN area and connected to each other will select a multi-cell transmission mode for this MBMS service. These cells also constitute the SFN area of the service, and in the largest SFN area, there may be multiple SFN areas of the service. Other cells located in the overlapping area of the SA and the largest SFN area but not connected to each other can only adopt the single cell transmission mode. A cell located in the SA but outside the overlapping area of the SA and the largest SFN area selects a single cell transmission mode for this MBMS service.
  • some information for transmission mode selection needs to be reserved in the MCE, including SA and cell mapping information, neighbor cell list of each cell, maximum SFN area, and cell mapping information.
  • Fig. 2 is a diagram showing the basic structure related to transmission mode selection in the MCE.
  • the MCE 200 includes a memory 210 and a radio configuration setting module 220.
  • the radio configuration setting module 220 includes a transmission mode selection/switching module 230, and triggers the transmission mode selection/switching module 230 based on the MBMS session initiation/update message received from the SAE GW 100 or the recounted result message received from the eNB 300.
  • the transmission mode selection process or the transmission mode switching process is not limited to SAE AW 100, MCE 200, and eNB 300, and shows the basic structure in MCE 200 related to transmission mode selection/switching.
  • the MCE 200 includes a memory 210 and a radio configuration setting module 220.
  • the radio configuration setting module 220 includes a transmission mode selection/switching module 230, and triggers the transmission mode selection/switching module 230 based on the MBMS session initiation/update message received from the SAE GW 100 or the recounted result message received from the eNB 300.
  • the memory 210 is configured to store information of the mapping relationship between the SA and the cell, the neighbor cell list of each cell, the maximum SFN area, and the cell mapping relationship as auxiliary input conditions for transmission mode selection/switching.
  • the radio configuration setup module 220 ultimately notifies the corresponding eNB 300 of the determined transmission mode.
  • the transmit mode selection/switching module 230 includes an overlap region determination module 2300, a cell location determination module 2310, a cell distribution status determination module 2320, and a transmit mode determination/judgment module 2330.
  • the overlap region determining module 2300 determines the mapping information according to the SA and the cell stored in the memory 210 and the information of the maximum SFN region and the cell mapping relationship. The overlap area between the SA of the MBMS service and the largest SFN.
  • the cell location determining module 2310 determines, for each cell in the SA, whether the cell is in the overlapping region determined by the overlapping region determining module 2300, thereby dividing the cell in the SA into cells in the overlapping region and A cell that is not in the overlapping area.
  • the cell location determining module 23]0 directly notifies the cells that are not in the overlapping region to the transmission mode determination/judging module 2330, and the transmission mode determination/judging module 2330 selects a single cell transmission mode for these cells.
  • the cell location determining module 2310 notifies the cell in the overlapping region to the cell distribution status determining module 2320.
  • the cell distribution status determining module 2320 determines the distribution status of the cell of the user of interest based on the counting result message from the eNB 300 and the neighbor cell list of each cell stored in the memory 210, so that there will be users of interest.
  • the cell is divided into non-contiguous cells (not adjacent to other cells with interested users) and neighboring cells (adjacent to other cells with interested users), and notifies the information of non-contiguous cells and neighboring cells to the transmitting.
  • Mode determination/judgment module 2330 The transmit mode determination/judgment module 2330 selects a single cell transmission mode for non-contiguous cells and a multi-cell transmission mode for neighboring cells.
  • the radio configuration setting module 220 notifies the corresponding eNB 300 of the selected transmission mode. In each corresponding cell).
  • the eNB 300 will periodically send a recount result message to reflect the distribution of users interested in the MBMS service.
  • the cell distribution status determination module 2320 receives the recount result message, it re-determines the cell with the user of interest based on the recount result message from the eNB 300 and the neighbor cell list of each cell stored in the memory 210. The distribution status, thereby re-dividing the cell of the user with interest into a non-contiguous cell and a neighboring cell, and notifying the information of the non-contiguous cell and the neighboring cell to the transmission mode determining/judging module 2330.
  • the transmit mode determination/judgment module 2330 selects a single cell transmission mode for non-contiguous cells and a multi-cell transmission mode for neighboring cells. Thereafter, the transmission mode determination/judgment module 2330 determines, for each cell, whether the selected transmission mode is the same as the transmission mode that was previously used. If, for a certain cell, the selected transmission mode is the same as the previously used transmission mode, it is not necessary to switch the transmission mode. Therefore, it is not necessary to send a transmission mode switching message to the eNB 300 corresponding to the cell; If the selected transmission mode is different from the previous transmission mode, the transmission mode needs to be switched. Therefore, the radio configuration setting module 220 notifies the selected transmission mode to the eNB 300 corresponding to the cell.
  • the specific transmission mode selection process for an MBMS service is as described in FIG.
  • step S301 the radio configuration setting module 220 in the MCE 200 receives a process in which the MBMS session start/update message triggers the transmission mode selection.
  • the MCE 200 (overlap region determining module 2300) determines the SA of the service and the maximum SFN according to the mapping relationship information of the SA and the cell in which the (memory 210) is stored and the information of the maximum SFN area and the cell mapping relationship. Overlapping area.
  • step S303 periodic counting process processing is performed in the cell of the SA area, and the result of the counting is used to determine whether there is a user interested in the service in the cell.
  • the periodic counting process is followed by recounting, and the recounting result message is a trigger condition for performing the transmission mode switching process (to be described later with reference to Fig. 4).
  • step S304 the MCE 200 (cell location determining module 2310) determines the relationship between the cell of the SA of the service and the overlapping area of the largest SFN. For cells not in the overlap region, the MCE 200 directly performs step S308, (the transmission mode determination/judging module 2330) selects the transmission mode of the cells as the single cell transmission mode. For those cells in the SA that are in the overlapping area, the MCE 200 performs step S305 to perform a result processing process of counting/recounting.
  • step S305 the MCE 200 (cell distribution status determination module 2320) performs pair counting/recounting Processing.
  • the MCE 200 determines whether cells in the overlapping area of the cells of these SAs and the largest SFN have users interested in the service. For those cells that do not have no interested users, there is no need to transmit the MBMS service data, thereby affecting the interconnection of other cells.
  • the result message for the recounting triggers the judgment processing of the transmission mode switching, and also determines the distribution of the interested users in the cell (to be described later with reference to Fig. 4).
  • step S306 the MCE 200 (the cell distribution status determination module 2320) determines the distribution of the user cells of interest in the overlapping area to determine the adjacency status of the cells. If the cells are mutually adjacent, the MCE 200 performs step S307 to determine that the transmission mode of the cells is a multi-cell transmission mode. Otherwise, the MCE 200 performs step S308 to select the transmission mode of the cells as the single cell transmission mode.
  • step S307 the MCE 200 (transmit mode determination/judgment module 2330) selects the transmission mode to be a multi-cell transmission mode.
  • step S308 the MCE 200 (transmit mode determination/judgment module 2330) selects the transmission mode to the single cell transmission mode.
  • the radio configuration setting module 220 in the MCE 200 notifies the selected eNB 300 of the selected transmission mode.
  • step S310 the transmission mode selection process according to the present invention ends.
  • PTM point-to-multipoint
  • the MCE decides to select the multi-cell transmission mode, the MCE will use the "Label" value to determine the relevant RB (Radio Bearer) configuration for that service.
  • PTP point-to-point
  • PTM point-to-multipoint
  • the MCE does not determine the RB configuration of the single-cell transmission mode service, but merely informs the relevant eNB that the single-cell transmission mode is selected for the service, and the eNB itself selects the PTP or PTM and the RB configuration according to the actual situation.
  • FIG. 4 shows the basic flow of a transmission mode switching process for one MBMS service.
  • step S303 in the process of performing the MBMS service, periodic counting process processing is performed in a cell of the SA area, and a re-counting result message is periodically generated due to periodic repetition of the counting process; when the MCE 200 (cell)
  • the distribution status determination module 2320 triggers the transmission mode switching process when receiving the recount result message.
  • the MCE 200 (cell distribution status determination module 2320) performs processing for recounting to re-determine the distribution of the user of interest in the cell.
  • step S306 the MCE 200 (the cell distribution status determining module 2320) re-determines the distribution status of the user cells of interest in the overlapping area, and determines the adjacency status of the cells. If the cells are adjacent to each other, the MCE 200 performs step S307 to determine that the transmission mode of the cells is a multi-cell transmission mode. Otherwise, the MCE 200 performs step S308 to select the transmission mode of the cells as the single cell transmission mode.
  • step S307 the MCE 200 (transmit mode determination/judgment module 2330) selects the transmission mode to be a multi-cell transmission mode.
  • step S308 the MCE 200 (transmit mode determination/judgment module 2330) selects the transmission mode to the single cell transmission mode.
  • step S401 the MCE 200 (transmit mode determination/judging module 2330) compares the newly selected transmission mode with the original transmission mode for each cell.
  • the MCE 200 determines that the transmission mode needs to be switched, and replaces the original with the newly selected transmission mode result. There is a transmission mode, and in step S309, the radio configuration setting module 220 in the MCE 200 notifies the newly selected transmission mode to the eNB 300 corresponding to the cell.
  • step S403 If the newly selected transmission mode is the same as the original transmission mode for a certain cell, then in step S403, the MCE 200 (transmit mode determination/judgment module 2330) determines that it is not necessary to switch the transmission mode, and maintains the original transmission mode without performing step S309.
  • step S310 the transmission mode switching process according to the present invention ends.
  • the E-MBMS single-cell transmission deployment scenario is described, and the selection/switching judgment processing of the transmission mode is discussed.
  • the main contents are summarized as follows:
  • the transmission mode selection and handover decision shall be implemented as the function of the MCE, which shall be defined in the protocol as one of the functions of the MCE;
  • the multi-cell transmission mode uses only PTM transmission, and the MCE will determine the RB configuration of the multi-cell transmission mode service.
  • the single cell transmission mode can be transmitted using PTP and PTM.
  • the MCE only determines the single cell transmission mode, but does not determine its associated RB configuration.
  • the eNB itself determines the PTP or PTM transmission and the related RB configuration according to the actual situation;
  • the content of the transmission mode selection should be included in the protocol, and factors such as service area definition, network deployment status, and MBMS user distribution should be obtained;

Landscapes

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

Abstract

L'invention concerne un dispositif et un procédé permettant de sélectionner un mode de transmission/changer de mode de transmission, comprenant: une unité de détermination de zone de recouvrement, permettant de déterminer la zone de recouvrement de SA et SFN d'un service MBMS prédéterminé; une unité de détermination de position de cellule, permettant de répartir les cellules dans le SA du service MBMS prédéterminé en cellules dans la zone de recouvrement et cellules en dehors de la zone de recouvrement; une unité de détermination de l'état de répartition des cellules, permettant de répartir les cellules avec les utilisateurs préférant le service MBMS prédéterminé en cellules non-adjacentes qui ne sont pas à proximité des autres cellules avec les utilisateurs préférant le service MBMS prédéterminé et en cellules adjacentes qui sont à proximité des autres cellules avec les utilisateurs préférant le service MBMS prédéterminé; et une unité de sélection/détermination de mode de transmission, permettant de sélectionner un mode de transmission de cellule unique, pour les cellules en dehors de la zone de recouvrement et les cellules non-adjacentes, et de sélectionner le mode de transmission de cellules multiples pour la cellule adjacente.
PCT/CN2008/000547 2007-03-21 2008-03-19 Dispositif et procédé permettant de sélectionner un mode de transmission/changer de mode de transmission WO2008113259A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2007100384891A CN101272174B (zh) 2007-03-21 2007-03-21 发射模式选择/切换装置、无线电配置设置装置、多小区/多媒体协调设备及发射模式选择/切换方法
CN200710038489.1 2007-03-21

Publications (1)

Publication Number Publication Date
WO2008113259A1 true WO2008113259A1 (fr) 2008-09-25

Family

ID=39765376

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/000547 WO2008113259A1 (fr) 2007-03-21 2008-03-19 Dispositif et procédé permettant de sélectionner un mode de transmission/changer de mode de transmission

Country Status (2)

Country Link
CN (1) CN101272174B (fr)
WO (1) WO2008113259A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102264030B (zh) * 2010-05-24 2016-03-30 中兴通讯股份有限公司 一种lte系统中广播业务的传输方法及装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1496161A (zh) * 2002-09-19 2004-05-12 ���ǵ�����ʽ���� 确定移动通信系统中mbms业务传输方案的方法
CN1571532A (zh) * 2003-07-15 2005-01-26 北京三星通信技术研究有限公司 多媒体广播与组播业务中点到点和点到多点转换方法
WO2005117297A1 (fr) * 2004-04-19 2005-12-08 Lg Electronics Inc. Transmission d'informations de commande dans un systeme de communication sans fil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1496161A (zh) * 2002-09-19 2004-05-12 ���ǵ�����ʽ���� 确定移动通信系统中mbms业务传输方案的方法
CN1571532A (zh) * 2003-07-15 2005-01-26 北京三星通信技术研究有限公司 多媒体广播与组播业务中点到点和点到多点转换方法
WO2005117297A1 (fr) * 2004-04-19 2005-12-08 Lg Electronics Inc. Transmission d'informations de commande dans un systeme de communication sans fil

Also Published As

Publication number Publication date
CN101272174A (zh) 2008-09-24
CN101272174B (zh) 2011-11-30

Similar Documents

Publication Publication Date Title
US10687179B2 (en) Service continuity for group communication over LTE eMBMS
EP2939484B1 (fr) Communication de diffusion ou multidiffusion de dispositif à dispositif multibande
CN101242573B (zh) 激活多媒体广播与组播服务业务的方法及系统
RU2357369C2 (ru) Способ и устройство для передачи и приема пакетных данных и информации управления mbms
JP6034867B2 (ja) ブロードキャスト・マルチキャスト・セルに関する再選択またはハンドオーバするための方法、基地局、およびシステム
EP1758408B1 (fr) Procedes, systeme et equipement utilisateur de reception d informations de commande de diffusion multimedia ou de service multidiffusion
CN105430621B (zh) 用于车辆通信的数据传输方法及装置、基站和网络侧设备
ZA200606374B (en) Transmitting and receiving control information for multimedia broadcast/multicast service in mobile communication system
WO2015062474A1 (fr) Procédé et appareil de transmission d'informations de communication de groupe
CN108029051B (zh) 通过支持公共安全服务的终端重选空闲模式小区的方法和装置
CN102413431A (zh) 保障rrc连接状态的ue的mbms服务连续性的方法
WO2010003318A1 (fr) Procédé, système et appareil de transmission embms
WO2012113312A1 (fr) Procédé et système de changement de mode de transmission mbms
US20160227553A1 (en) Method for determining priorities of services and wireless equipment thereof
WO2010017660A1 (fr) Procédé et dispositif de service de multidiffusion pour diffusion multimedia coordonné par des stations de base multiples dans un mode d’émission de cellule unique
WO2011032380A1 (fr) Procédé de transmission d'informations entre une station de base et des stations de base voisines
CN101754100B (zh) 一种在融合的e-mbms系统中提供mbms业务的方法和装置
CN106412844A (zh) 实现增强型多媒体广播多播业务连续接收的方法及终端
WO2022033474A1 (fr) Procédé de commande d'informations, appareil, et station de base
WO2008113259A1 (fr) Dispositif et procédé permettant de sélectionner un mode de transmission/changer de mode de transmission
CN100574536C (zh) 小区重选处理方法及其用户终端
WO2023241512A1 (fr) Procédé et appareil de nouvelle sélection de cellule, et support de stockage
CN115023973A (zh) 用于管理多媒体广播多播服务(mbms)连续性的系统和方法
GB2448128A (en) Indicating a preferred radio access technology for delivery of an MBMS service
WO2012122816A1 (fr) Procédé et système de détermination de cellule cible de basculement pour équipement utilisateur

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: 08715000

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: 08715000

Country of ref document: EP

Kind code of ref document: A1