WO2002001789A1 - Radio communication system, transmitter and receiver - Google Patents

Radio communication system, transmitter and receiver Download PDF

Info

Publication number
WO2002001789A1
WO2002001789A1 PCT/EP2001/006002 EP0106002W WO0201789A1 WO 2002001789 A1 WO2002001789 A1 WO 2002001789A1 EP 0106002 W EP0106002 W EP 0106002W WO 0201789 A1 WO0201789 A1 WO 0201789A1
Authority
WO
WIPO (PCT)
Prior art keywords
midamble
codes
subset
active
receiver
Prior art date
Application number
PCT/EP2001/006002
Other languages
French (fr)
Inventor
Stamatis Kourtis
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Priority to AU67481/01A priority Critical patent/AU6748101A/en
Publication of WO2002001789A1 publication Critical patent/WO2002001789A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal

Definitions

  • This invention relates to radio communication systems and particularly to such systems employing midamble coding.
  • midambles are part of the physical channel configuration which is performed by higher layers in a layered, hierarchical data management scheme.
  • a default midamble allocation may be used.
  • This default midamble allocation is given by a fixed association between midambles and channelisation codes, and is applied individually to all channelisation codes within one time slot. Different associations apply for different burst types and cell configurations with respect to the maximum number of midambles.
  • midamble allocation for down-link (DL) physical channels physical channels providing a beacon function always use reserved midambles. For all other DL physical channels the midamble allocation is signalled or given by default.
  • a common or a user- equipment (UE) specific midamble is signalled to the UE as a part of the physical channel configuration.
  • UE user- equipment
  • the UE derives the midamble from the associated channelisation code and uses an individual midamble for each channelisation code. For each association between midambles and channelisation codes if no midamble is allocated by higher layers, there is one primary channelisation code associated to each midamble. A set of secondary channelisation codes is associated to each primary channelisation code. All the secondary channelisation codes within a set use the same midamble as the primary channelisation code to which they are associated.
  • Higher layers allocate the channelisation codes in a particular order. Primary channelisation codes are allocated prior to associated secondary channelisation codes. If midambles are reserved for the beacon function, all primary and secondary channelisation codes that are associated with the reserved midambles are not used. Primary and respective associated secondary channelisation codes are not allocated to different UE's.
  • secondary channelisation codes of one set are allocated in ascending order, with respect to their numbering. higher layers, the UE derives the midamble from the assigned channelisation code as for DL physical channels.
  • UTRA TDD Time Division Duplex mode of Universal Mobile Telecommunications System Terrestrial Radio Access of the European Telecommunications Standards Institute (ETSI)
  • ETSI European Telecommunications Standards Institute
  • FIG. 1 shows, in a transmitter of a system employing a midamble coding scheme for UTRA TDD data transmission in a timeslot, a block diagram illustrating shifting of the midamble
  • FIG. 2 shows a block diagram illustrating, in a receiver, recovery of midamble shift information to facilitate decoding of the midamble.
  • a midamble for transmission in a timeslot is passed through a shifter 110, which applies to the midamble a first shift Sj (whose significance will be explained in greater detail below), controlled by an Sj input.
  • the resultant S r shifted midamble is then passed through a shifter 120, which applies to the third, compound shift S 3 (whose significance will also be explained in greater detail below), controlled by an S 3 input.
  • the resultant composite (S l5 S 2 , S 3 )-shifted midamble is then passed to additional processing elements (not shown) for transmission.
  • the composite midamble may be coded using the sixteen predetermined midamble shift positions (or a subset of them according to the system configuration) (for 'burst type 1' transmission) or the six predetermined midamble shift positions (or a subset of them according to the system configuration) (for 'burst type 2' transmission). It will also be understood that, in choosing the active subset, the codes are allocated in a certain manner, i.e., the resource manager assigns codes from top to bottom.
  • a particular 'burst type 1' transmission there may be six codes which form the subset of active codes, and which are spread over the first ten of the possible sixteen codes (e.g., the 1 st , 2 nd , 5 th , 8 9 * and 10 th codes of the sixteen available) .
  • the midamble is coded to signal to the receiver not just the number of channelisation codes used in the DL timeslot, but also further information on the channelisation codes used which allows the receiver to know over which subset of available codes it must search in order to find the active codes used.
  • the first shift Si is chosen to be equal to the very last code (of the sixteen available) that is used in the subset of active codes.
  • the second shift S 2 is chosen to be equal to the number of codes not used in the active subset.
  • pointer or shift values S x and S 2 indicate (in addition to the number of codes in the active set) which subset of the available sixteen codes must be searched in order to find the active codes allows significant improvement in both the error performance of the code detection procedure and its computational complexity, thus allowing code detection to be performed more quickly and/or with less power consumption.
  • a receiver 200 a received coded midamble is extracted from the received burst and passed through a first shift detector 210 which detects the first shift S x present in the received midamble.
  • the detected shift value S t is passed to processing circuitry (e.g., a microprocessor) 240.
  • the midamble from the first shift detector 210 is passed through a second shift
  • the midamble from the second shift detector 220 is passed through a third shift detector 230 which detects the third shift S 3 present in the received midamble.
  • the detected shift value S 3 is passed to the processing circuitry 240.
  • the processing circuitry 240 receives the received burst, together with the shift values S x , S 2 and S 3 from the first, second and third shift detectors 210, 220 and 230. For the cases when the S 3 flag is utilised, the S 3 value is logically combined with the S x and/or S 2 values from the first and/or second shift detectors to produce expanded Sj and/or S 2 values which unambiguously indicate respectively the ending code number and the number of the codes in the active set.
  • the active code set is determined, it is passed to the demodulator circuitry (not shown) in order to perform the data extraction from the received burst.
  • the processing circuitry 240 has only to search for six codes within the subset of ten codes in order to be able to determine the appropriate six channelisation codes , allowing significant improvement in both the error performance of the code detection procedure and its computational complexity, thus allowing code detection to be performed more quickly and/or with less power consumption.

Abstract

A radio communication system (100, 200), transmitter (100) and receiver (200) use a set of codes with sufficient cross-correlation properties, in order to realise multiple user detection. A Midamble is encoded with midamble shifts from a subset of a predetermined set. A signalling scheme is employed in which the transmitted compound midamble is compound-shifted by first (S1) and second (S2) pointer signals which signal resepctively the last active code belonging to the subset and the number of codes in the subset which are not active. This provides the following advantages: not only does the receiver know the number of the active codes, but also it knows over which subset (as indicated by the first midamble shift) of the original set of 16 codes it has to search in order to find the active codes. The latter is of significant importance for both the error performance of the code detection procedure and the computational complexity. In order to reduce possible ambiguity which may arise from certain UTRA TDD data transmissions, a third shift (S3) may be used to indicate whether the number of codes in the subset is even or odd.

Description

RADIO COMMUNICATION SYSTEM, TRANSMITTER AND RECEIVER
Field of the Invention
This invention relates to radio communication systems and particularly to such systems employing midamble coding.
Background of the Invention
In the field of this invention it is known (for example from the technical specification '3G TS 25.221 V3.2.0', released in March 2000, of the '3rd Generation Partnership Project, Technical Specification Group Radio Access Network' , relating to physical channels and mapping of transport channels onto physical channels using time division duplex (TDD) techniques) to allocate midamble portions of transmissions (more commonly referred to simply as 'midambles') for physical channels.
In general, midambles are part of the physical channel configuration which is performed by higher layers in a layered, hierarchical data management scheme.
Optionally, if no midamble is allocated by higher layers, a default midamble allocation may be used. This default midamble allocation is given by a fixed association between midambles and channelisation codes, and is applied individually to all channelisation codes within one time slot. Different associations apply for different burst types and cell configurations with respect to the maximum number of midambles. In the case of midamble allocation for down-link (DL) physical channels, physical channels providing a beacon function always use reserved midambles. For all other DL physical channels the midamble allocation is signalled or given by default.
In the case of midamble allocation by signalling, either a common or a user- equipment (UE) specific midamble is signalled to the UE as a part of the physical channel configuration.
If no midamble is allocated by signalling, the UE derives the midamble from the associated channelisation code and uses an individual midamble for each channelisation code. For each association between midambles and channelisation codes if no midamble is allocated by higher layers, there is one primary channelisation code associated to each midamble. A set of secondary channelisation codes is associated to each primary channelisation code. All the secondary channelisation codes within a set use the same midamble as the primary channelisation code to which they are associated.
Higher layers allocate the channelisation codes in a particular order. Primary channelisation codes are allocated prior to associated secondary channelisation codes. If midambles are reserved for the beacon function, all primary and secondary channelisation codes that are associated with the reserved midambles are not used. Primary and respective associated secondary channelisation codes are not allocated to different UE's.
In the case that secondary channelisation codes are used, secondary channelisation codes of one set are allocated in ascending order, with respect to their numbering. higher layers, the UE derives the midamble from the assigned channelisation code as for DL physical channels.
The current specification for UTRA TDD (Time Division Duplex mode of Universal Mobile Telecommunications System Terrestrial Radio Access of the European Telecommunications Standards Institute (ETSI)) does not provide the means to signal to the mobile terminal what are the active codes for the case of the common midamble.
It has been proposed that, for the case of the common midamble, multiple midamble shifts be used in order to signal to a mobile station the number of currently active codes used in a time slot.
However, this approach has the disadvantage(s) that, nonetheless, the mobile station has to search over the whole set of, say 16, codes in order to detect which are the active ones.
It is an object of the present invention to provide a radio communication system and method therefor wherein the abovementioned disadvantage(s) may be alleviated.
Statement of Invention
In accordance with a first aspect of the present invention there is provided a radio communication system as claimed in claim 1.
In accordance with a second aspect of the present invention there is provided a In accordance with a third aspect of the present invention there is provided a receiver for a radio communication system as claimed in claim 11.
Brief Description of the Drawing(s)
One radio communication system, method and incorporating the present invention will now be described, by way of example only, with reference to the accompanying drawing(s), in which:
FIG. 1 shows, in a transmitter of a system employing a midamble coding scheme for UTRA TDD data transmission in a timeslot, a block diagram illustrating shifting of the midamble; and
FIG. 2 shows a block diagram illustrating, in a receiver, recovery of midamble shift information to facilitate decoding of the midamble.
Description of Preferred Embodiment(s)
Referring now to FIG. 1, in a transmitter 100 of a system employing a midamble coding scheme for UTRA TDD data transmission using a set of codes with sufficient cross-correlation properties in order to realise multiple user detection. In the transmitter 100, a midamble for transmission in a timeslot is passed through a shifter 110, which applies to the midamble a first shift Sj (whose significance will be explained in greater detail below), controlled by an Sj input. The resultant Sr shifted midamble is then passed through a shifter 120, which applies to the third, compound shift S3 (whose significance will also be explained in greater detail below), controlled by an S3 input. The resultant composite (Sl5 S2, S3)-shifted midamble is then passed to additional processing elements (not shown) for transmission.
As will be understood, in UTRA TDD transmission the composite midamble may be coded using the sixteen predetermined midamble shift positions (or a subset of them according to the system configuration) (for 'burst type 1' transmission) or the six predetermined midamble shift positions (or a subset of them according to the system configuration) (for 'burst type 2' transmission). It will also be understood that, in choosing the active subset, the codes are allocated in a certain manner, i.e., the resource manager assigns codes from top to bottom. For example, in a particular 'burst type 1' transmission there may be six codes which form the subset of active codes, and which are spread over the first ten of the possible sixteen codes (e.g., the 1st, 2nd, 5 th, 8 9 * and 10th codes of the sixteen available) .
As will be explained in further detail below, in order to facilitate the detection of the active channelisation codes, the midamble is coded to signal to the receiver not just the number of channelisation codes used in the DL timeslot, but also further information on the channelisation codes used which allows the receiver to know over which subset of available codes it must search in order to find the active codes used.
The first shift Si is chosen to be equal to the very last code (of the sixteen available) that is used in the subset of active codes. The second shift S2 is chosen to be equal to the number of codes not used in the active subset. Thus, it will be appreciated that in the above example (where there are six codes which are active, and which are be appreciated that the shift values Sj (= 10) and S2 (= 4) act as pointers to the 10th code (the last code of the active set) and the 4th code from the available sixteen.
It will be understood that the fact that the pointer or shift values Sx and S2 indicate (in addition to the number of codes in the active set) which subset of the available sixteen codes must be searched in order to find the active codes allows significant improvement in both the error performance of the code detection procedure and its computational complexity, thus allowing code detection to be performed more quickly and/or with less power consumption.
It will be appreciated that the code signalling scheme described above is readily applicable to 'type burst 1' transmissions when the channel length is relatively short in order to support sixteen midamble shifts. Nonetheless, it will be understood the scheme is equally applicable for longer channel lengths and also for 'type burst 2' transmissions. However, although some uncertainties could arise with use of these transmissions (i.e., where the S! and/or S2 values may utilise different mapping and/or encoding to identify unambiguously precisely how many codes are in the active set), this uncertainty could be eliminated by the introduction of a third midamble shift S3 which is a single binary value and acts as a flag to indicate for example whether the number of active codes is even or odd.
Referring now to FIG. 2, in a receiver 200 a received, coded midamble is extracted from the received burst and passed through a first shift detector 210 which detects the first shift Sx present in the received midamble. The detected shift value St is passed to processing circuitry (e.g., a microprocessor) 240.
The midamble from the first shift detector 210 is passed through a second shift The midamble from the second shift detector 220 is passed through a third shift detector 230 which detects the third shift S3 present in the received midamble. The detected shift value S3 is passed to the processing circuitry 240.
The processing circuitry 240 receives the received burst, together with the shift values Sx, S2 and S3 from the first, second and third shift detectors 210, 220 and 230. For the cases when the S3 flag is utilised, the S3 value is logically combined with the Sx and/or S2 values from the first and/or second shift detectors to produce expanded Sj and/or S2 values which unambiguously indicate respectively the ending code number and the number of the codes in the active set. The processing circuitry subtracts the S2 value from the Sj value to produce a difference value (in the present example, = 6, derived SI = 10 and S2 = 4). The value is thus equal to the number of codes in the active set. The processing circuitry 240 then searches the (= 6) codes within the subset of the sixteen available codes, starting with the code 1 and ending with the code SI (= 10). When the active code set is determined, it is passed to the demodulator circuitry (not shown) in order to perform the data extraction from the received burst.
It will be understood that in this way the processing circuitry 240 has only to search for six codes within the subset of ten codes in order to be able to determine the appropriate six channelisation codes , allowing significant improvement in both the error performance of the code detection procedure and its computational complexity, thus allowing code detection to be performed more quickly and/or with less power consumption.

Claims

Claims
1. A radio communication system for coding a midamble with one of a subset of a predetermined set of midamble shift positions, the system comprising: in a transmitter, means for coding the midamble in accordance with both the number of the active codes and a subset of the total possible codes, which subset includes all active codes; means for applying to the midamble a first shift representative of a first signal indicative of the position in the predetermined set of the final code of the active set; and means for applying to the midamble a second shift representative of a second signal indicative of the number of codes which are not in the active set, and in a receiver, means for recovering from a received midamble the first signal indicative of the position in the predetermined set of the final code of the active set; means for recovering from the received midamble the second signal indicative of the number of codes which are not in the active set; and means for determining from the recovered first signal and the recovered second signal the set of active codes.
2. The system according to claim 1 wherein the system is arranged for UTRA TDD data transmission.
3. The system according to claim 2 wherein the system is arranged for type burst 1 the transmitter further comprises means for applying to the midamble a third shift representative of a third signal indicative of whether the number of codes in the subset is odd or even, the receiver further comprises means for recovering from the received midamble the third signal indicative of whether the number of codes in the subset is odd or even, and the means for determining is arranged to determine the set of active codes from the recovered first signal, the recovered second signal and the recovered third signal.
5. The system according to claim 4 wherein the system is arranged for type burst 1 UTRA TDD data transmission or type burst 2 UTRA TDD data transmission.
6. A transmitter for use in a radio communication system for coding a midamble with one of a subset of a predetermined set of midamble shift positions, the transmitter comprising: means for coding the midamble in accordance with both the number of the active codes and a subset of the total possible codes, which subset includes all active codes; means for applying to the midamble a first shift representative of a first signal indicative of the position in the predetermined set of the final code of the active set; and means for applying to the midamble a second shift representative of a second signal indicative of the number of codes which are not in the active set,
7. The transmitter according to claim 6 wherein the transmitter is arranged for UTRA TDD data transmission.
9. The transmitter according to claim 6 or 7 wherein: the transmitter further comprises means for applying to the midamble a third shift representative of a third signal indicative of whether the number of codes in the subset is odd or even.
10. The transmitter according to claim 9 wherein the system is arranged for type burst 1 UTRA TDD data transmission or type burst 2 UTRA TDD data transmission.
11. A receiver for use in a radio communication system for coding a midamble with one of a subset of a predetermined set of midamble shift positions, which subset of includes all active codes, the receiver comprising: means for recovering from a received midamble a first signal indicative of the position in the predetermined set of the final code of the active set; means for recovering from the received midamble a second signal indicative of the number of codes which are not in the active set; and means for determining from the recovered first signal and the recovered second signal the set of active codes.
12. The receiver according to claim 11 wherein the receiver is arranged for UTRA TDD data reception.
13. The receiver according to claim 12 wherein the receiver is arranged for type burst 1 UTRA TDD data reception. - li ¬
the receiver further comprises means for recovering from the received midamble a third signal indicative of whether the number of codes in the subset is odd or even, and the means for determining is arranged to determine the set of active codes from the recovered first signal, the recovered second signal and the recovered third signal.
15. The receiver according to claim 14 wherein the receiver is arranged for type burst 1 UTRA TDD data reception or for type burst 2 UTRA TDD data reception.
16. A radio communication system for coding a midamble with one of a subset of a predetermined set of midamble shift positions substantially as hereinbefore described with reference to the accompanying drawings.
17. A transmitter for use in a radio communication system for coding a midamble with one of a subset of a predetermined set of midamble shift positions substantially as hereinbefore described with reference to the accompanying drawings.
18. A receiver for use in a radio communication system for coding a midamble with one of a subset of a predetermined set of midamble shift positions substantially as hereinbefore described with reference to the accompanying drawings.
PCT/EP2001/006002 2000-06-28 2001-05-25 Radio communication system, transmitter and receiver WO2002001789A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU67481/01A AU6748101A (en) 2000-06-28 2001-05-25 Radio communication system, transmitter and receiver

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0015669A GB2364220A (en) 2000-06-28 2000-06-28 Encoding information in midamble shifts
GB0015669.5 2000-06-28

Publications (1)

Publication Number Publication Date
WO2002001789A1 true WO2002001789A1 (en) 2002-01-03

Family

ID=9894455

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/006002 WO2002001789A1 (en) 2000-06-28 2001-05-25 Radio communication system, transmitter and receiver

Country Status (3)

Country Link
AU (1) AU6748101A (en)
GB (1) GB2364220A (en)
WO (1) WO2002001789A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1507336A1 (en) * 2002-05-22 2005-02-16 Matsushita Electric Industrial Co., Ltd. Communication terminal device and spread code estimation method
US7412252B2 (en) 2002-05-15 2008-08-12 Ipwireless, Inc. System, transmitter, receiver and method for communication power control

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0456625A1 (en) * 1990-05-10 1991-11-13 Telefonaktiebolaget L M Ericsson A method of transmitting different commands relating to the choice of transmitter antenna in a time multiplex radio communication system
WO2000002326A2 (en) * 1998-07-03 2000-01-13 Nokia Networks Oy Data transmission method and mobile telephone system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6339612B1 (en) * 1998-02-09 2002-01-15 Motorola, Inc. Method and apparatus for joint detection of data in a direct sequence spread spectrum communications system
DE19907502C2 (en) * 1999-02-22 2001-11-22 Siemens Ag Method for channel estimation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0456625A1 (en) * 1990-05-10 1991-11-13 Telefonaktiebolaget L M Ericsson A method of transmitting different commands relating to the choice of transmitter antenna in a time multiplex radio communication system
WO2000002326A2 (en) * 1998-07-03 2000-01-13 Nokia Networks Oy Data transmission method and mobile telephone system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7412252B2 (en) 2002-05-15 2008-08-12 Ipwireless, Inc. System, transmitter, receiver and method for communication power control
EP1507336A1 (en) * 2002-05-22 2005-02-16 Matsushita Electric Industrial Co., Ltd. Communication terminal device and spread code estimation method
EP1507336A4 (en) * 2002-05-22 2009-01-21 Panasonic Corp Communication terminal device and spread code estimation method

Also Published As

Publication number Publication date
GB0015669D0 (en) 2000-08-16
GB2364220A (en) 2002-01-16
AU6748101A (en) 2002-01-08

Similar Documents

Publication Publication Date Title
US6504830B1 (en) Method, apparatus, and system for fast base synchronization and sector identification
US7248621B2 (en) Method for allocating secondary synchronization codes to a base station of a mobile telecommunication system
FI110295B (en) Assignment of demodulator elements in a system that can receive multiple signals
KR100300903B1 (en) Cdma radio communication apparatus
CN101103554B (en) Method and apparatus for estimating channelization codes in a wireless transmit/receive unit
EP0851611B1 (en) CDMA Cellular Radio Transmission System
AU735531B2 (en) Rake receiver and finger management method for spread spectrum communication
US6539047B1 (en) Initial acquisition and frame synchronization in spread spectrum communication system
US7433391B2 (en) Spread-spectrum receiver with fast M-sequence transform
KR940701613A (en) Call Channels in Code Division Multiple Access (CDMA) Communication Systems
JP2006157949A (en) Blind code detecting method and apparatus
KR100379454B1 (en) Direct sequence CDMA system and method for using the same
US6366603B1 (en) Spread spectrum communication system
US7292563B1 (en) Method of associating a training code to a channelisation code in a mobile telecommunication system
US8335245B2 (en) Code division multiple access mobile communication system
EP1473854B1 (en) A cell search method and a base station for a code division multiple access mobile communication system
WO2002001789A1 (en) Radio communication system, transmitter and receiver
US7085313B2 (en) Multiple channel joint decoding at mobile handset
US7028093B2 (en) Method of transferring user data packets
US20090073898A1 (en) Method and apparatus for code division duplexing
US6556558B1 (en) Transmission method for use in a multiple access radiocommunication system
KR100640408B1 (en) METHOD TO DISTINGUISH MULTI FRAME STRUCTURE AND INDICATE TRANSMIT DIVERSITY BY PHASE MODULATION OF DwPTS IN NARROW BAND TIME DIVISION DUPLEXING AND APPARATUS
KR100249151B1 (en) System and method for allocating demodulator of rake receiver using coincidence detector
US7649994B1 (en) System and method for decoding CDMA quality channel

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP