WO2005122433A1 - 試験装置および試験方法 - Google Patents
試験装置および試験方法 Download PDFInfo
- Publication number
- WO2005122433A1 WO2005122433A1 PCT/JP2005/010274 JP2005010274W WO2005122433A1 WO 2005122433 A1 WO2005122433 A1 WO 2005122433A1 JP 2005010274 W JP2005010274 W JP 2005010274W WO 2005122433 A1 WO2005122433 A1 WO 2005122433A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- packet
- communication terminal
- code
- diffusion
- spreading
- Prior art date
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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
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/391—Modelling the propagation channel
- H04B17/3911—Fading models or fading generators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/10—Code generation
Definitions
- the present invention relates to a test apparatus and a test method for testing reception performance of a communication terminal apparatus used in a wireless communication system.
- the selection combining function considered under the specifications of 3GPP Multimedia Broadcast Multicast Service is a communication terminal that transmits a bucket carrying the same information on the base station device power of two cells.
- MBMS 3GPP Multimedia Broadcast Multicast Service
- Non-Patent Document 1 describes a link level simulation result in the case where the selective combining function is performed.
- a method for improving the reception performance of a communication terminal apparatus a method (reception diversity) is known in which multiple reception antennas are arranged to combine multipaths.
- this method is used, compared with the case of receiving with one antenna, the reception performance is improved, and even without performing the selective combining function, it is possible to receive only one base station device power packet, There is also the possibility of achieving the required specifications (throughput) of Therefore, when performing reception performance tests of communication terminal apparatuses in the future, it may be necessary to identify whether improvement in throughput is due to the selective combining function or reception diversity.
- Nonpatent Literature 1 R1-031103 (TSG-RAN Working Group 1 # 32)
- test apparatus Z test method having a function to determine whether or not the selective combining function is implemented in the communication terminal device to be tested, and so on. .
- An object of the present invention is to test the reception performance of a communication terminal device to be tested, and to determine whether the communication terminal device is equipped with a selective combining function. And providing a test method.
- the test device of the present invention transmits the spread packet to the communication terminal device, and tests the reception performance of the communication terminal device according to the error rate of the received packet of the communication terminal device.
- Test apparatus which comprises: a spread code generation unit that generates a plurality of types of spread codes; a transmission packet generation unit that generates a packet; a transmission control unit that controls a switching timing of the spread code; Selecting means for selecting any of the spreading codes generated by the spreading code generation means based on the control of the control means; and the packets generated by the transmission packet generation means being selected by the selection means And spreading means for multiplying the spreading code.
- the test apparatus of the present invention is a test apparatus that transmits the spread packet to the communication terminal apparatus, and tests the reception performance of the communication terminal apparatus based on the error rate of the received packet of the communication terminal apparatus.
- the transmission code generation unit configured to generate a plurality of types of diffusion codes
- the transmission packet generation unit configured to generate a plurality of packet sequences by generating buckets, and the transmission such that the diffusion codes are different for each of the packet sequences.
- a diffusion unit configured to multiply the spread code by the bucket generated by the packet generation unit.
- the spread packet is transmitted to a communication terminal apparatus, and the reception performance of the communication terminal apparatus is tested based on an error rate of a received packet of the communication terminal apparatus.
- a test method comprising: a diffusion code generation step of generating a plurality of kinds of diffusion codes; a transmission packet generation step of generating a bucket; a transmission control step of controlling switching timing of the diffusion code; A selection step of selecting any one of the diffusion codes generated in the diffusion code generation step based on the control of the above, and the diffusion code selected in the selection step for the packet generated in the transmission packet generation step. And D. spreading.
- the test method of the present invention is a test method of transmitting a packet after spreading to a communication terminal apparatus, and testing the reception performance of the communication terminal apparatus based on the error rate of the received packet of the communication terminal apparatus.
- the present invention it is possible to test the reception performance of the communication terminal apparatus, and to determine whether or not the communication terminal apparatus to be tested has the selective combining function implemented in the communication terminal apparatus. it can.
- FIG. 1 is a block diagram showing the configuration of a test apparatus according to a first embodiment of the present invention.
- FIG. 2 A diagram showing an example of a packet sequence transmitted by the tester according to the first embodiment of the present invention.
- FIG. 3 A block diagram showing a configuration of a test apparatus according to Embodiment 2 of the present invention
- FIG. 4 A diagram showing an example of a packet sequence transmitted by the test apparatus of the second embodiment of the present invention.
- FIG. 5 A diagram showing an example of a packet sequence transmitted by the tester according to the second embodiment of the present invention.
- FIG. 6 A diagram showing an example of a packet sequence transmitted by the tester according to the second embodiment of the present invention.
- FIG. 7 shows an example of a packet sequence transmitted by the tester according to the second embodiment of the present invention.
- FIG. 1 is a block diagram showing a configuration of a test apparatus according to Embodiment 1 of the present invention.
- the test apparatus 100 outputs the spread packet to the communication terminal apparatus 200 to be tested, receives a report on whether the packet has been successfully decoded in the communication terminal apparatus 200, and calculates the packet error rate. This is an apparatus for testing the reception performance of the communication terminal apparatus 200.
- the test apparatus 100 includes a first code generation unit 101, a second code generation unit 102, a transmission control unit 103, a selection unit 104, a transmission bucket generation unit 105, a diffusion unit 106, and a fading simulator 107. , And measurement unit 151 mainly.
- First code generation unit 101 generates a first spread code (hereinafter referred to as “first code”) and outputs the generated first spread code to selection unit 104.
- the second code generation unit 102 generates a second diffusion code (hereinafter, referred to as “second code”) and outputs it to the selection unit 104.
- the first code and the second code are given in advance before the start of the test.
- the transmission control unit 103 instructs the selection unit 104 to switch the spreading code to be output.
- the selection unit 104 selects either the first code or the second code according to the instruction of the transmission control unit 103, and outputs the selected spreading code to the spreading unit 106.
- the transmission packet generation unit 105 generates a transmission packet to be used for the test and outputs the transmission packet to the spreading unit 106.
- Spreading section 106 spreads the packet by multiplying the packet output from transmission packet generation section 105 by the spreading code output from selecting section 104, and outputs the spread packet to fading simulator 107.
- the fading simulator 107 simulates the spatio-temporal characteristics of the actual communication environment, adds a multipath to the bucket output from the spreading unit 106, and outputs it to the communication terminal apparatus 200.
- Measurement unit 151 receives a report from communication terminal apparatus 200 whether or not the packet has been correctly decoded, calculates the packet error rate, and outputs the calculation result. As an output method in the measurement unit 151, display on a display screen, printing on a recording sheet, and the like can be given.
- the first code and the second code are given to the test apparatus 100 and the communication terminal 200 in advance before the start of the test.
- synchronization is established between the test apparatus 100 and the communication terminal 200 before the test starts.
- a sequence of packets spread by either the first code or the second code is transmitted from the test apparatus 100.
- the spreading code to be multiplied by the packet is switched at a predetermined timing, and in this example, as shown in FIG. 2, packets A to D and I to L are multiplied by the first code, and packets E to H are multiplied. Is to be multiplied by the second code.
- Communication terminal apparatus 200 determines whether each packet has been decoded correctly or not, and reports the determination result to test apparatus 100.
- the communication terminal apparatus 200 has implemented the selective combining function, it performs despreading processing using the first code and the second code, and corrects at least one of the spreading codes for each packet. If it can be decoded, it is judged that it has been correctly decoded, and if any of the spreading codes can not be decoded correctly, it is judged that it can not be decoded correctly.
- the communication terminal apparatus 200 implements the selective combining function, and in the case of the first code, reverse diffusion processing is performed using one or the other of the second code, and each packet is processed for each packet. It is determined whether or not the power has been correctly decoded.
- Test apparatus 100 calculates a packet error rate based on a report received from communication terminal apparatus 200, and outputs a calculation result.
- the error rate is measured across all packets (A to L). If it does, it will be lower than the predetermined error rate. If communication terminal apparatus 200 does not implement the selective combining function and reception performance is good, packets (A to D, 1 to L) multiplied by the first code or the second code is Since only one or the other of the multiplied packets (E to H) can be received, if the error rate is measured over all the packets (A to L), an error will occur. The rate is higher than a predetermined value and can not pass the test. In addition, when the reception performance of the communication terminal 200 is not good, the error rate becomes higher than a predetermined value over all the packets (A to L), so the test can not be passed.
- the test apparatus switches between the plurality of different spreading codes, multiplies the packets and transmits them, and reports the decoding result of each packet that has also received the communication terminal device power. Since the error rate is calculated and output based on this, the reception performance of the communication terminal can be tested, and it is determined whether or not the selection combining function is implemented in the communication terminal to be tested in the communication terminal. be able to.
- FIG. 3 is a block diagram showing a configuration of a test apparatus according to Embodiment 2 of the present invention.
- the same components as in the test apparatus 100 shown in FIG. 1 are assigned the same reference numerals as in FIG.
- the test apparatus 300 shown in FIG. 3 deletes the transmission control unit 103, the selection unit 104, the transmission packet generation unit 105, and the transmission packet generation unit 301. Take the added configuration. Further, the test apparatus 300 shown in FIG. 3 has two diffusion units 106-1 and 106-2, and two fading simulators 107-1 and 107-2.
- Transmission packet generation section 301 generates transmission packets to be used in the test to form two packet sequences, and outputs one packet sequence to spreading section 106-1 and the other packet sequence to spreading section 106-1. — Output to 2.
- Spreading section 106-1 spreads the packet by multiplying the packet output from transmission packet generation section 301 by the first code output from first code generation section 101, and spreading the packet after spreading Output to fading simulator 107-1.
- Spreading section 106-2 spreads the packet by multiplying the packet output from transmission packet generation section 301 by the second code output from second code generation section 102, and the spread packet is subjected to fading simulator 107. — Output to 2.
- the transmission packet generation unit 301 no packet is output, and in the case, the signal is not output from the spreading unit 106-2.
- Fading simulators 107-1, 107-2 simulate the spatio-temporal characteristics of the actual communication environment.
- the pseudo packets are generated and added to the packets output from the spreading units 106-1 and 106-2, respectively.
- the output signals of fading simulators 107-1 and 107-2 are code-multiplexed and output to communication terminal apparatus 200.
- the first code and the second code are given to the test apparatus 300 and the communication terminal apparatus 200 in advance before the start of the test.
- synchronization is established between the test apparatus 300 and the communication terminal apparatus 200 before the start of the test.
- the sequence of packets spread by the first code and the sequence of packets spread by the second code are transmitted from the test apparatus 300.
- the test apparatus 300 As shown in FIG. 4, it is assumed that a sequence in which packets A to L are multiplied by a first code and a sequence in which packets M to X are multiplied by a second code are respectively transmitted.
- Communication terminal apparatus 200 determines whether or not the power of each packet has been correctly decoded, and reports the determination result to test apparatus 300.
- the communication terminal apparatus 200 has implemented the selective combining function, it performs despreading processing using the first code and the second code, and corrects at least one of the spreading codes for each packet. If it can be decoded, it is judged that it has been correctly decoded, and if any of the spreading codes can not be decoded correctly, it is judged that it can not be decoded correctly.
- the communication terminal apparatus 200 implements the selective combining function, and in the case of the first code, reverse diffusion processing is performed using one or the other of the second code, and each packet is processed for each packet. It is determined whether or not the power has been correctly decoded.
- Test apparatus 300 calculates the packet error rate based on the report received from communication terminal apparatus 200, and outputs the calculation result.
- the error rate is predetermined for all packets (A to X). Lower than the value of. Also, if communication terminal apparatus 200 does not implement the selective combining function and reception performance is good, packets (A to L) multiplied by the first code or packets multiplied by the second code ( Since only one or the other of M through X) can be received, if the error rate is measured over all packets (A through X), the error rate will be higher than a predetermined value, and it will I can not pass. Also, the reception performance of the communication terminal 200 is good. If not, the test can not pass because the error rate is higher than the predetermined value for all packets (A to X).
- the power described in the case where two packet sequences in which packets are continuous are transmitted from test apparatus 300.
- the present invention is not limited to this, and as shown in FIG. It may be divided into two and transmitted. Also, as shown in FIGS. 6 and 7, some packets may be transmitted in one packet sequence, and other packets may be transmitted in both packet sequences. Further, in the present invention, the packet sequences may not be synchronized with each other.
- the test apparatus transmits a plurality of packet sequences multiplied by different spreading codes, and based on the report of the decoding result of each packet received from the communication terminal apparatus. Since the error rate is calculated and output, the reception performance of the communication terminal can be tested, and it is determined whether the selective combining function is implemented in the communication terminal to be tested in the communication terminal. Can.
- the present invention is not limited to this and the fading simulator may be configured as an apparatus different from the test apparatus.
- the case where the measurement unit is provided inside the test apparatus has been described.
- the present invention is not limited to this and the measurement unit may be configured as an apparatus different from the test apparatus.
- the present invention is also applicable to the case of testing using three or more types of diffusion codes.
- packets as a unit has been described.
- the present invention is not limited to this.
- a plurality of packets such as TTI, frames, subframes, etc. may be used as a unit.
- the present invention is suitable for use in a test apparatus for testing the reception performance of a communication terminal apparatus used in a wireless communication system.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/628,795 US20080069003A1 (en) | 2004-06-10 | 2005-06-03 | Testing Apparatus And Testing Method |
CN2005800190397A CN1965507B (zh) | 2004-06-10 | 2005-06-03 | 测试装置以及测试方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004172411A JP4061292B2 (ja) | 2004-06-10 | 2004-06-10 | 試験装置および試験方法 |
JP2004-172411 | 2004-06-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005122433A1 true WO2005122433A1 (ja) | 2005-12-22 |
Family
ID=35503446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/010274 WO2005122433A1 (ja) | 2004-06-10 | 2005-06-03 | 試験装置および試験方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20080069003A1 (ja) |
JP (1) | JP4061292B2 (ja) |
CN (1) | CN1965507B (ja) |
WO (1) | WO2005122433A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2262134B1 (en) * | 2009-06-10 | 2018-05-02 | Rohde & Schwarz GmbH & Co. KG | System and method for testing a communcation device with an offline uplink fader |
US8570928B2 (en) * | 2009-07-17 | 2013-10-29 | Htc Corporation | Method of handling multimedia broadcast multicast service data reception on multiple component carriers |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07250016A (ja) * | 1994-03-11 | 1995-09-26 | Anritsu Corp | 無線端末試験装置 |
JPH098770A (ja) * | 1995-06-22 | 1997-01-10 | Matsushita Electric Ind Co Ltd | Cdma無線多重送信装置およびcdma無線多重伝送装置 |
JPH1188941A (ja) * | 1997-09-05 | 1999-03-30 | Ntt Mobil Commun Network Inc | 移動通信のチャネル構成方法および移動通信システム |
JP2001045539A (ja) * | 1999-07-27 | 2001-02-16 | Matsushita Electric Ind Co Ltd | 移動局試験装置及び方法 |
JP2003188768A (ja) * | 2001-12-14 | 2003-07-04 | Matsushita Electric Ind Co Ltd | Cdma方式を用いた受信装置および受信方法 |
JP2004023755A (ja) * | 2002-06-20 | 2004-01-22 | Anritsu Corp | 移動無線機の感度試験におけるマルチパスフェージング信号レベルの校正方法、補正方法及び移動無線機テストシステム |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3586004B2 (ja) * | 1995-08-22 | 2004-11-10 | 富士通株式会社 | 移動無線通信の誤り率検出装置 |
WO2000033491A1 (en) * | 1998-11-30 | 2000-06-08 | Nokia Networks Oy | Test facility for transceiver station |
US7154846B2 (en) * | 2000-10-24 | 2006-12-26 | Nortel Networks Limited | Shared channel structure, ARQ systems and methods |
KR100827147B1 (ko) * | 2001-10-19 | 2008-05-02 | 삼성전자주식회사 | 부호분할다중접속 이동통신시스템에서 고속 데이터의효율적 재전송 및 복호화를 위한 송,수신장치 및 방법 |
US6724730B1 (en) * | 2002-03-04 | 2004-04-20 | Azimuth Networks, Inc. | Test system for simulating a wireless environment and method of using same |
US7885198B2 (en) * | 2004-01-05 | 2011-02-08 | Jds Uniphase Corporation | Systems and methods for characterizing packet-switching networks |
US20050232292A1 (en) * | 2004-04-16 | 2005-10-20 | Richards Derek J | Transmission efficiency for broadcast/multicast services in cellular networks |
-
2004
- 2004-06-10 JP JP2004172411A patent/JP4061292B2/ja not_active Expired - Fee Related
-
2005
- 2005-06-03 US US11/628,795 patent/US20080069003A1/en not_active Abandoned
- 2005-06-03 WO PCT/JP2005/010274 patent/WO2005122433A1/ja active Application Filing
- 2005-06-03 CN CN2005800190397A patent/CN1965507B/zh not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07250016A (ja) * | 1994-03-11 | 1995-09-26 | Anritsu Corp | 無線端末試験装置 |
JPH098770A (ja) * | 1995-06-22 | 1997-01-10 | Matsushita Electric Ind Co Ltd | Cdma無線多重送信装置およびcdma無線多重伝送装置 |
JPH1188941A (ja) * | 1997-09-05 | 1999-03-30 | Ntt Mobil Commun Network Inc | 移動通信のチャネル構成方法および移動通信システム |
JP2001045539A (ja) * | 1999-07-27 | 2001-02-16 | Matsushita Electric Ind Co Ltd | 移動局試験装置及び方法 |
JP2003188768A (ja) * | 2001-12-14 | 2003-07-04 | Matsushita Electric Ind Co Ltd | Cdma方式を用いた受信装置および受信方法 |
JP2004023755A (ja) * | 2002-06-20 | 2004-01-22 | Anritsu Corp | 移動無線機の感度試験におけるマルチパスフェージング信号レベルの校正方法、補正方法及び移動無線機テストシステム |
Also Published As
Publication number | Publication date |
---|---|
CN1965507B (zh) | 2010-11-10 |
CN1965507A (zh) | 2007-05-16 |
JP4061292B2 (ja) | 2008-03-12 |
US20080069003A1 (en) | 2008-03-20 |
JP2005354359A (ja) | 2005-12-22 |
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