WO2011020272A1 - 一种多天线系统中总辐射灵敏度的测试方法及系统 - Google Patents

一种多天线系统中总辐射灵敏度的测试方法及系统 Download PDF

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Publication number
WO2011020272A1
WO2011020272A1 PCT/CN2009/075650 CN2009075650W WO2011020272A1 WO 2011020272 A1 WO2011020272 A1 WO 2011020272A1 CN 2009075650 W CN2009075650 W CN 2009075650W WO 2011020272 A1 WO2011020272 A1 WO 2011020272A1
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tested
data stream
test
base station
antenna
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PCT/CN2009/075650
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English (en)
French (fr)
Inventor
郭阳
丁添添
禹忠
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中兴通讯股份有限公司
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Publication of WO2011020272A1 publication Critical patent/WO2011020272A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/29—Performance testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers

Definitions

  • the present invention relates to the field of radio frequency testing technologies for wireless communication products, and in particular, to a method and system for testing total radiation sensitivity in a multi-antenna multiple input multiple output (MIMO) system.
  • MIMO multiple input multiple output
  • TRP Total Radiated Power
  • TRS Total Radiated Sensitivity
  • OTA Over The Air
  • CTIA Cellular Communications Standardization Association
  • the measurement of TRP and TRS is performed on the spherical surface with the device under test as the center of the sphere, as shown in Figure 1.
  • the measured wireless communication product is placed on a first rotating shaft or a second rotating shaft of a testing device, the first rotating shaft rotating range is 0-180 degrees, and the second rotating shaft rotating range is 0-360 degrees.
  • the TRP test needs to take a test point every 15 degrees 0 (0-180 degrees) and ⁇ (0-360 degrees), and a total of 264 points need to be tested.
  • Total Radiation Sensitivity TRS is defined as:
  • ⁇ is the angular region entity corresponding to the direction
  • f is the frequency, and represents two mutually orthogonal polarizations.
  • the effective omnidirectional sensitivity (EIS) is defined as the antenna output when the sensitivity threshold is reached for each polarization mode. The available power at the end.
  • TRS can be equivalently calculated using the following formula:
  • N and M in the formula are the number of sampling points for measuring the angle ⁇ ⁇ angle and angle.
  • the technical problem to be solved by the present invention is to provide a test method and system for total radiation sensitivity in a multi-antenna system, and propose a corresponding test scheme for total radiation sensitivity for different transmission modes in a multi-antenna system.
  • the present invention provides a method for testing total radiation sensitivity in a multi-antenna system, the method comprising: setting a number of data streams sent by a base station to be 1, and a number of receiving antennas of the device to be tested is n;
  • the device under test turns on n receiving antennas and receives a data stream sent by the base station at a preset position.
  • the base station measures E/ and E/ according to each E/ and E/ of the test point measurements calculate the total radiation sensitivity of the data stream; wherein, n > 2, E/ is the effective omnidirectional sensitivity of the test point angle; E/ is the test point angle Effective omnidirectional sensitivity.
  • the base station E and EIS EIS also when measuring each test point of the device under test is turned on individually for each antenna, and E is calculated according to the EIS EIS each test point and the data stream Total radiation sensitivity.
  • test condition is specifically: the error rate of the data stream received by the device under test remains in the following range in a time period of at least 20000 bits: 0.8% bit error rate ⁇ 1.2%.
  • the method is applicable to at least one of a single antenna port 0, a single antenna port 5, a transmit diversity, a multi-user multi-antenna, and a closed-loop single-stream precoding transmission mode.
  • the method is applicable to at least one of a single antenna port 0 and a single antenna port 5 transmission mode.
  • the present invention also provides a method for testing the total radiation sensitivity in a multi-antenna system, the method comprising: setting the number of data streams sent by the base station to m, and the number of receiving antennas of the device to be tested is n;
  • the device to be tested starts n receiving antennas, and receives a data stream sent by the base station at a preset location; the base station simultaneously transmits m data streams, and tests the total radiation sensitivity for each data stream to be tested;
  • Testing the total radiation sensitivity of each of the data streams to be tested specifically includes: at each test point, the base station measures E/ and E/ when the data stream to be tested satisfies the test condition; and then measures according to each test point. E/ and E/ calculate the total radiation sensitivity of the data stream to be tested; the m > 2, and n > m.
  • the base station measures the EIS ⁇ EIS at each test point, and then calculates the m to wait according to E/ and E/ of each test point. Measure the total radiation sensitivity of the data stream.
  • the test condition is specifically: in a time period of at least 20,000 bits, the error rate of the data stream to be tested is kept in the following range: 0.8% error rate 1.2%;
  • the error rate of the data stream to be tested is: a total error rate of the m data streams to be tested.
  • the method is applicable to at least one of open-loop space division multiplexing, closed-loop space division multiplexing, multi-user multi-antenna, and transmission mode of single antenna port 5.
  • the present invention also provides a test system for total radiation sensitivity in a multi-antenna system, the system comprising a base station and a device to be tested;
  • the device to be tested is configured to enable n receiving antennas to receive data streams sent by the base station, and the base station is configured to send data streams to the device to be tested, and at each test point, when the data flows Measure E/ and E/ when the test conditions are met and measure according to each test point
  • EIS 9 and ⁇ ⁇ calculate the total radiation sensitivity of the data stream
  • the number of data streams is 1 and n > 2.
  • the device to be tested is further configured to receive a data stream sent by the base station when each receiving antenna is separately turned on;
  • the base station is further configured to: when the device under test separately turns on each receiving antenna, send a data stream to the device under test, and at each test point, measure EIS e and EIS when the data stream meets the test condition. And calculate the total radiation sensitivity of the data stream based on the EIS e and E1S 9 measured at each test point.
  • test condition is specifically: the error rate of the data stream received by the device under test remains in the following range in a time period of at least 20000 bits: 0.8% bit error rate ⁇ 1.2%.
  • the transmission mode of the antenna specifically includes: at least one of a single antenna port 0, a single antenna port 5, a transmit diversity, a multi-user multi-antenna, and a closed-loop single-stream pre-coding transmission mode.
  • the transmission mode of the antenna specifically includes: at least one of a single antenna port 0 and a transmission mode of the single antenna port 5.
  • the invention also provides a test system for total radiation sensitivity in a multi-antenna system, the system package Including a base station and a device under test;
  • the device to be tested is configured to enable n receiving antennas to receive data streams sent by the base station, and the base station is configured to simultaneously send m data streams to the device to be tested, and at each test point, when Measuring the E/ and E/ when the measured data stream satisfies the test condition and calculating the total radiation sensitivity of the data stream to be tested according to the EIS e and ⁇ ⁇ measured at each test point;
  • the base station is further configured to: at each test point, measure EIS e and ⁇ ⁇ when the m data streams satisfy the test condition, and calculate the EIS e and E1S 9 according to each test point.
  • test condition is specifically: in a time period of at least 20000 bits, the error rate of the data stream to be tested is kept in the following range: 0.8% error rate 1.2%;
  • the error rate of the data stream to be tested is: a total error rate of the m data streams to be tested.
  • the transmission mode of the antenna specifically includes: at least one of open loop spatial division multiplexing, closed loop space division multiplexing, multi-user multiple antenna, and single antenna port 5 transmission mode.
  • the present invention provides a test system and method for a TRS in a multi-antenna system.
  • each user can simultaneously transmit or receive two or more data streams, and the present invention provides
  • the method and flow of testing 1 and 2 data streams TRS the solution of TRS test in multi-antenna system is given.
  • FIG. 1 is a schematic diagram of a spherical coordinate system established with the wireless communication product under test as an origin;
  • FIG. 2 is a flow chart of a TRS test method for data flow in the multi-antenna system of the present invention.
  • DETAILED DESCRIPTION OF THE INVENTION The present invention provides a test system and method for total radiation sensitivity in a multi-antenna system, The system embodiment and method embodiments are described in detail.
  • the embodiment provides a test system for total radiation sensitivity in a multi-antenna system, the system comprising a base station and a device to be tested.
  • the device under test is used to enable n receiving antennas to receive data streams sent by the base station.
  • the base station is configured to send a data stream to the device under test, and at each test point, measure E/ and E/ when the data stream satisfies the test condition, and calculate the data according to E/ and E/ of each test point.
  • Streaming TRS Where the number of data streams is 1 , n > 2
  • the test condition is as follows:
  • the error rate (BER) of the data stream to be tested received by the device under test is kept within a preset range within a preset time, and the preset time may be set according to requirements, such as, but not limited to, 20,000 bits.
  • the preset range of the BER of the data stream to be tested received by the device under test may also be set as needed, such as, but not limited to, 0.8% BER 1.2%.
  • the above system is suitable for the following transmission modes: single antenna port 0, single antenna port 5, transmit diversity, multi-user multi-antenna and closed-loop single-stream precoding.
  • the device under test can also be used to receive the data stream sent by the base station when each receiving antenna is separately turned on.
  • the base station may also be configured to send a data stream to the device under test when the device under test individually turns on each of the receiving antennas, and measure E/ and E/ at each test point when the data stream satisfies the test condition and according to each test The E/ and E/ of the point calculate the TRS of the data stream.
  • a test system for total radiation sensitivity in a multi-antenna system comprising a base station and a device under test.
  • the device to be tested is configured to enable n receiving antennas to receive data streams sent by the base station.
  • the base station is configured to simultaneously send m data streams to the device under test, and measure E/ and E/ at each test point when the data stream to be tested satisfies the test condition, and according to EIS EIS rp of each test point Calculating the TRS of the data stream to be tested; m > 2, and n > m.
  • the base station can also be used to measure EIS ⁇ EIS at each test point when m data streams meet the test conditions and calculate the TRS of the m data streams based on E/ and E/ of each test point.
  • the test condition is: maintaining the BER of the data stream to be tested received by the device under test within a preset time.
  • the preset time can be set as needed. For example, but not limited to 20,000 bits, the preset range of the BER of the data stream to be tested received by the device under test can also be set as needed, such as, but not limited to, 0.8%. BER ⁇ 1.2%.
  • the system described in this embodiment is applicable to the following transmission modes: open loop space division multiplexing, closed loop space division multiplexing, multi-user multi-antenna, and single antenna port 5.
  • a test method for total radiation sensitivity in a multi-antenna system advanced prior to testing the TRS value, as described in steps 101 through 104:
  • Step 101 Set the downlink physical channel power as shown in Table 1:
  • Table 1 Step 102 The device to be tested is powered on.
  • Step 103 Perform call setup according to the normal call setup process, set the power control algorithm to Power Control Algorithm 2, and set the compression mode to OFF.
  • Step 104 The device under test enters loopback test mode 2 (loopback test mode 2) to start the closed loop test.
  • the TRS value test process can be performed.
  • the test method of the TRS value in different transmission modes is described in detail below.
  • the transmission mode one is Single-antenna port 0.
  • the single antenna port 0 mode has only one data stream and two receiving antennas.
  • the data stream sent by the base station is still one, and the number of receiving antennas of the device to be tested may be greater than 2.
  • Step 201 The base station continuously sends a control command of the Up power to the device to be tested.
  • Step 202 When the device under test reaches the maximum transmit power, start to send the PN15 data mode to the base station.
  • Step 203 The device to be tested is placed in a preset position, as may be an appropriate position relative to the human brain model.
  • This step may also be preceded by step 201, which is not limited by the present invention.
  • Step 204 For each test point selected, the base station measures the EIS when the data stream to be tested satisfies the test condition, and includes E/ and E/EIS as the transmit power sent by the base station to the device under test from a specific direction.
  • the above test condition is Refers to: The BER of the data stream to be tested received by the device under test remains within the preset range within a preset time.
  • the preset time can be set as needed, such as but not limited to It is 20,000 bits.
  • the preset range of the BER of the data stream to be tested received by the device under test can also be set as needed, such as, but not limited to, 0.8% BER 1.2%.
  • the selection method of the test points is the same as the selection method of the test points in the single antenna mode in the prior art
  • the measurement method of the EIS EIS is the same as the measurement method of the EIS EIS rp in the single antenna mode in the prior art.
  • Step 205 Calculate the TRS by substituting the measured E/ and E/ values on each test point into a preset formula.
  • the above preset formula can be, but is not limited to,:
  • ⁇ and ⁇ are the number of sampling points that measure the angle ⁇ ⁇ angle and angle.
  • each receiving antenna of the device to be tested can be turned on separately, and when the other receiving antennas are turned off, the base station measures the TRS value in this case, and the TRS is the TRS when each receiving antenna is used alone, and the testing process thereof As shown in FIG. 2, steps 201 to 205 as described above are included.
  • the transmission mode 2 is a transmit diversity (Transmit diversity).
  • the transmit diversity mode has only one data stream and two receive antennas, and in other versions, such as LTE version 9, LTE version 10
  • the data stream sent by the base station is still one, and the number of receiving antennas of the device to be tested may be greater than 2.
  • the device to be tested needs to turn on the n antennas for receiving.
  • the TRS test method is as follows: The n receiving antennas of the device to be tested are both turned on and receive the data stream. For the device to be tested, the situation is Receiving the diversity, the test obtains the TRS value in this case.
  • the specific process is shown in Figure 2, including:
  • Step 201 The base station continuously sends a control command of the Up power to the device to be tested.
  • Step 203 The device to be tested is placed in a preset position, as may be an appropriate position relative to the human brain model.
  • This step may also be preceded by step 201, which is not limited by the present invention.
  • Step 204 For each test point selected, the base station measures the EIS when the data stream to be tested satisfies the test condition, and includes E/ and E/EIS as the transmit power sent by the base station to the device under test from a specific direction.
  • the above test condition is The BER of the data stream to be tested received by the device under test is kept within the preset range.
  • the preset time can be set as required. For example, but not limited to 20,000 bits, the device under test receives the test.
  • the preset range of the BER of the data stream can also be set as needed, such as, but not limited to, 0.8% BER 1.2%.
  • the selection method of the test points is the same as the selection method of the test points in the single antenna mode in the prior art
  • the measurement method of the EIS ⁇ EH ⁇ is the same as the measurement method of the EIS ⁇ EIS in the single antenna mode in the prior art.
  • Step 205 Calculate the TRS by substituting the measured E/ and E/ values on each test point into the preset formula.
  • the above preset formula can be, but is not limited to,:
  • ⁇ and ⁇ are the number of sampling points that measure the angle ⁇ ⁇ angle and angle.
  • the transmission mode 3 is Open-loop spatial multiplexing.
  • LTE Rel-8 there are two data streams in the open-loop space division multiplexing mode.
  • the number of data streams transmitted by the base station is m, and m > 2.
  • the TRS test method is: the base station simultaneously transmits m data streams, and for each data stream, the TRS value is measured.
  • the test method for the data stream j is: the base station simultaneously transmits m data streams. The n receiving antennas of the device to be tested are all turned on. When the data stream j satisfies the test condition, the TRS value of the data stream j is tested.
  • the specific process is as shown in FIG. 2, including:
  • Step 201 The base station continuously sends a control command of the Up power to the device to be tested.
  • Step 202 When the device under test reaches the maximum transmit power, start to send the PN15 data mode to the base station.
  • Step 203 The device to be tested is placed in a preset position, as may be an appropriate position relative to the human brain model.
  • This step may also be preceded by step 201, which is not limited by the present invention.
  • Step 204 For each test point selected, the base station measures the EIS when the data stream to be tested satisfies the test condition, and includes E/ and E/EIS as the transmit power sent by the base station to the device under test from a specific direction.
  • the above test condition is The BER of the data stream to be tested received by the device under test is kept within the preset range.
  • the preset time can be set as required. For example, but not limited to 20,000 bits, the device under test receives the test.
  • the preset range of the BER of the data stream can also be set as needed, such as, but not limited to, 0.8% BER 1.2%.
  • the selection method of the test points is the same as the selection method of the test points in the single antenna mode in the prior art
  • the measurement method of the EIS EIS is the same as the measurement method of the EIS EIS rp in the single antenna mode in the prior art.
  • Step 205 After measuring the E/ and E/ values on each test point, and calculating TRS according to the following formula:
  • ⁇ and ⁇ are the number of sampling points that measure the angle ⁇ ⁇ angle and angle.
  • the total TRS value of the m data streams can also be tested.
  • the method is as follows: The base station simultaneously transmits m data streams. When the sum of the m data streams, that is, the total data stream satisfies the test condition, the total TRS value of the m data streams is measured, and the testing process is as shown in FIG. 2 .
  • the data stream to be tested in step 204 is the m data streams, and the sum of the m data streams satisfies the test condition: the device to be tested received in the preset time is to be tested.
  • the BER of the data stream is kept in a preset range, and the preset time can be set as needed. For example, but not limited to 20,000 bits, the preset range of the BER of the data stream to be tested received by the device under test can also be set as needed. , if not limited to 0.8% BER 1.2%.
  • the total error rate of m data streams refers to: The ratio of the total number of error bits of the m data streams to the total number of bits of the m data streams.
  • the transmission mode 4 is closed-loop spatial multiplexing.
  • LTE version 8 there are two data streams in the closed-loop space division multiplexing mode.
  • other versions of LTE such as the LTE version. 9.
  • LTE version 10 the number of data streams sent by the base station is m, and m > 2.
  • the TRS test method in the open-loop space division multiplexing mode is as follows: The base station simultaneously transmits m data streams, and for each data stream, the TRS value is measured. For the TRS test method of the data stream j to be tested, the base station simultaneously transmits m. For each data stream, the n antennas of the device to be tested are both turned on. When the data stream j satisfies the test condition, the TRS value of the data stream j is tested.
  • the specific process is as shown in FIG. 2, including: Step 201: The base station continuously sends Up power. The control command is given to the device under test.
  • Step 202 When the device under test reaches the maximum transmit power, start to send the PN15 data mode to the base station.
  • Step 203 The device to be tested is placed in a preset position, as may be an appropriate position relative to the human brain model.
  • This step may also be preceded by step 201, which is not limited by the present invention.
  • Step 204 For each test point selected, when the data stream j to be tested satisfies the test condition time base
  • the station measures EIS, including E/ and E/EIS, which is the transmit power sent by the base station to the device under test from a specific direction.
  • the test condition is: The BER of the data stream to be tested received by the device under test remains in the preset time.
  • the preset time can be set as needed. For example, but not limited to 20,000 bits, the preset range of the BER of the data stream to be tested received by the device under test can also be set as needed, such as but not limited to 0.8% BER 1.2%.
  • the selection method of the test points is the same as the selection method of the test points in the single antenna mode in the prior art
  • the measurement method of the EIS e EIS is the same as the measurement method of the EIS e EIS in the single antenna mode in the prior art.
  • Step 205 After measuring the E/ and E/ values on each test point, and calculating TRS according to the following formula:
  • ⁇ and ⁇ are the number of sampling points that measure the angle ⁇ ⁇ angle and angle.
  • the total TRS value of the m data streams can also be tested by: the base station simultaneously transmitting m data streams, when the sum of the m data streams, that is, the total data stream meets the test condition.
  • the total TRS value of the m data streams is measured.
  • the test process is as shown in FIG. 2, and includes steps 201 to 205 as described above.
  • the data stream to be tested is the m data streams, and the m data streams.
  • the total BER of the m data streams to be tested received by the device under test is kept within a preset range within a preset time, and the preset time may be set as needed, such as, but not limited to, 20000 bits, the preset range of the BER of the data stream to be tested received by the device under test can also be set as needed, such as, but not limited to, 0.8% BER 1.2%.
  • the total error rate of m data streams refers to: The ratio of the total number of error bits of the m data streams to the total number of bits of the m data streams.
  • Example 5 This embodiment is a transmission mode five, that is, multi-user MIMO.
  • LTE version 8 in this mode, each device under test has only one data stream, and in other versions of LTE, such as LTE version 9
  • the number m of data streams sent by the base station may be 1, or may be greater than or equal to 2.
  • each device under test receives only one data stream, and both receive antennas need to be turned on and receive the data stream.
  • the TRS test method is as follows: Both the receiving antenna 1 and the receiving antenna 2 are turned on, and the data stream is received at the same time. For the device to be tested, the situation is the receiving diversity, and the TRS value in this case is obtained by testing.
  • the specific process is as shown in FIG. 2, and includes the following steps:
  • Step 201 The base station continuously sends a control command of the Up power to the device to be tested.
  • Step 202 When the device under test reaches the maximum transmit power, start to send the PN15 data mode to the base station.
  • Step 203 The device to be tested is placed in a preset position, as may be an appropriate position relative to the human brain model.
  • This step may also be preceded by step 201, which is not limited by the present invention.
  • Step 204 For each test point selected, the base station measures the EIS when the data stream to be tested satisfies the test condition, and includes E/ and E/EIS as the transmit power sent by the base station to the device under test from a specific direction, where the test condition is The BER of the data stream to be tested received by the device under test is kept within the preset range.
  • the preset time can be set as required. For example, but not limited to 20,000 bits, the data to be tested received by the device under test
  • the preset range of the BER of the stream can also be set as needed, such as, but not limited to, 0.8% BER 1.2%.
  • Step 205 Calculate the TRS by substituting the measured E/ and E/ values on each test point into a preset formula.
  • the above preset formula can be, but is not limited to,: 2NM
  • ElS e (e n ⁇ m ) ElS v (0 n ⁇ m ) N and M are the number of sampling points for measuring the angle ⁇ ⁇ angle and angle.
  • the TRS test method is: the base station simultaneously transmits m data streams, and the base station measures the TRS value for each data stream to be tested, and the TRS test method for the data stream j is: the base station simultaneously transmits m
  • the TRS value of the data stream j is tested; the specific process is shown in FIG. 2, including:
  • Step 201 The base station continuously sends a control command of the Up power to the device to be tested.
  • Step 202 When the device under test reaches the maximum transmit power, start to send the PN15 data mode to the base station.
  • Step 203 The device to be tested is placed in a preset position, as may be an appropriate position relative to the human brain model.
  • This step may also be preceded by step 201, which is not limited by the present invention.
  • Step 204 For each test point selected, the base station measures the EIS when the data stream to be tested satisfies the test condition, and includes E/ and E/EIS as the transmit power sent by the base station to the device under test from a specific direction.
  • the above test condition is The BER of the data stream to be tested received by the device under test is kept within the preset range.
  • the preset time can be set as required. For example, but not limited to 20,000 bits, the device under test receives the test.
  • the preset range of the BER of the data stream can also be set as needed, such as, but not limited to, 0.8% BER 1.2%.
  • Step 205 Calculate the TRS by substituting the measured E/ and E/ values on each test point into a preset formula.
  • the above preset formula can be, but is not limited to,:
  • N and M are the number of sampling points for measuring the angle ⁇ ⁇ angle and angle.
  • the total TRS value of the m data streams can also be tested by: the base station simultaneously transmitting m data streams, when the sum of the m data streams, that is, the total data stream meets the test condition.
  • the total TRS value of the m data streams is measured.
  • the test process is as shown in FIG. 2, and includes steps 201 to 205 as described above.
  • the data stream to be tested is the m data streams, and the m data streams.
  • the total BER of the m data streams to be tested received by the device under test is kept within a preset range within a preset time, and the preset time may be set as needed, such as, but not limited to, 20000 bits, the preset range of the BER of the data stream to be tested received by the device under test can also be set as needed, such as, but not limited to, 0.8% BER 1.2%.
  • the total error rate of m data streams refers to: The ratio of the total number of error bits of the m data streams to the total number of bits of the m data streams.
  • each device under test has only one data stream, two antennas, and the other
  • the data stream sent by the base station is still one, and the number of receiving antennas of the device to be tested may be greater than 2.
  • the device under test needs to turn on all n antennas for reception.
  • the TRS test method is as follows: The n receiving antennas of the device to be tested are all turned on, and the data stream is received at the same time, for the DUT of the device under test. Say this situation is receive diversity, test to get TRS in this case Value; The specific process is shown in Figure 2, including:
  • Step 201 The base station continuously sends a control command of the Up power to the device to be tested.
  • Step 202 When the device under test reaches the maximum transmit power, start to send the PN15 data mode to the base station.
  • Step 203 The device to be tested is placed in a preset position, as may be an appropriate position relative to the human brain model.
  • This step may also be preceded by step 201, which is not limited by the present invention.
  • Step 204 For each test point selected, the base station measures the EIS when the data stream to be tested satisfies the test condition, and includes E/ and E/EIS as the transmit power sent by the base station to the device under test from a specific direction.
  • the above test condition is The BER of the data stream to be tested received by the device under test is kept within the preset range.
  • the preset time can be set as required. For example, but not limited to 20,000 bits, the device under test receives the test.
  • the preset range of the BER of the data stream can also be set as needed, such as, but not limited to, 0.8% BER 1.2%.
  • the selection method of the test points is the same as the selection method of the test points in the single antenna mode in the prior art
  • the measurement method of the EIS e EIS is the same as the measurement method of the EIS e EIS in the single antenna mode in the prior art.
  • Step 205 Substituting the measured E/ and E/ values on each test point into a preset formula to calculate the TRS of the data stream to be tested.
  • the above preset formula can be, but is not limited to,:
  • N and M are the number of sampling points for measuring the angle ⁇ ⁇ angle and angle.
  • This embodiment is a transmission mode seven, that is, Single-antenna port 5, which uses beamforming technology.
  • LTE Rel-8 There is only one data stream and two receiving antennas in the mode, and in other versions, the number m of data streams may be greater than or equal to 2, and the number n of receiving antennas may be greater than 2.
  • Both the receiving antenna 1 and the receiving antenna 2 are turned on and receive the data stream. For the device to be tested, this is the receiving diversity.
  • the process of testing the TRS value in this case is as shown in FIG. 2, and includes the following steps. :
  • Step 201 The base station continuously sends a control command of the Up power to the device to be tested.
  • Step 202 When the device under test reaches the maximum transmit power, start to send the PN15 data mode to the base station.
  • Step 203 The device to be tested is placed in a preset position, as may be an appropriate position relative to the human brain model.
  • This step may also be preceded by step 201, which is not limited by the present invention.
  • Step 204 For each test point selected, the base station measures the EIS when the data stream to be tested satisfies the test condition, and includes E/ and E/EIS as the transmit power sent by the base station to the device under test from a specific direction, where the test condition is The BER of the data stream to be tested received by the device under test is kept within the preset range.
  • the preset time can be set as required. For example, but not limited to 20,000 bits, the data to be tested received by the device under test
  • the preset range of the BER of the stream can also be set as needed, such as, but not limited to, 0.8% BER 1.2%.
  • Step 205 Calculate the TRS by substituting the measured E/ and E/ values on each test point into a preset formula.
  • N and M are the number of sampling points for measuring the angle ⁇ ⁇ angle and angle.
  • the base station can also test the TRS in the case where each receiving antenna of the device to be tested is separately turned on and receives the data stream sent by the base station; the details are as follows:
  • the receiving antenna 1 of the device under test is turned on, and the receiving antenna 2 is turned off, and the TRS value in this case is measured.
  • the TRS is the TRS when the antenna 1 is used alone.
  • the test process is as shown in FIG. 1 and includes step 201 to Step 205.
  • the receiving antenna 2 of the device under test is turned on, the receiving antenna 1 is turned off, and the TRS value in this case is measured.
  • This TRS is the TRS when the antenna 1 is used alone, and the testing process is as shown in FIG. 1 , including step 201 to Step 205.
  • the TRS value tested under case (A2) can be used to compare the performance of single-antenna reception and diversity reception; it can also be used to obtain a performance baseline for each antenna when it is received separately.
  • the TRS test method is the same as (A), if the number of data streams is m > 2, more In the user MIMO mode, the TRS test method is: the base station simultaneously transmits m data streams, and for each data stream, the base station measures its TRS value, and the test method for the data stream j is: the base station simultaneously transmits m data streams, the device to be tested The n antennas are all turned on. When the data stream j satisfies the test condition, the TRS value of the data stream j is tested; the specific process is as shown in FIG. 2, including:
  • Step 201 The base station continuously sends a control command of the Up power to the device to be tested.
  • Step 202 When the device under test reaches the maximum transmit power, start to send the PN15 data mode to the base station.
  • Step 203 The device to be tested is placed in a preset position, as may be an appropriate position relative to the human brain model.
  • This step may also be preceded by step 201, which is not limited by the present invention.
  • Step 204 For each test point selected, the base station measures the EIS when the data stream to be tested satisfies the test condition, and includes E/ and E/EIS as the base station sends the signal to the device under test from a specific direction.
  • the power of the test, the above test conditions are: the data stream to be tested received by the device under test within a preset time
  • the BER is maintained in the preset range, and the preset time can be set as needed.
  • the preset range of the BER of the data stream to be tested received by the device under test can also be set according to requirements, such as But not limited to 0.8% BER 1.2%.
  • the selection method of the test point is the same as the selection method of the test point in the single antenna mode in the prior art
  • the measurement method of the EIS EIS rfl is the same as the measurement method of the E1S E1S 9 in the single antenna mode in the prior art.
  • Step 205 Calculate the TRS by substituting the measured E/ and E/ values on each test point into a preset formula.
  • the above preset formula can be, but is not limited to,:
  • N and M are the number of sampling points for measuring the angle ⁇ ⁇ angle and angle.
  • the total TRS value of the m data streams can also be tested by: the base station simultaneously transmitting m data streams, when the sum of the m data streams, that is, the total data stream, satisfies the test condition.
  • the total TRS value of the m data streams is measured.
  • the test process is as shown in FIG. 2, and includes steps 201 to 205 as described above.
  • the data stream to be tested is the m data streams.
  • the sum of the data streams satisfies the test condition: the total BER of the m data streams to be tested received by the device under test is kept within a preset range within a preset time, and the preset time may be set as needed, such as but not limited to It is 20,000 bits.
  • the preset range of the BER of the data stream to be tested received by the device under test can also be set as needed, such as, but not limited to, 0.8% BER ⁇ 1.2%.
  • the total error rate of m data streams refers to: The ratio of the total number of error bits of the m data streams to the total number of bits of the m data streams.
  • the present invention is further illustrated by a plurality of application examples, the following application examples are all in LTE Version 8 is an example.
  • the application example corresponds to the transmission mode 1.
  • the TRS test method in the single antenna port 0 mode is:
  • Both the receiving antenna 1 and the receiving antenna 2 of the device under test are turned on and receive the data stream.
  • this is the receiving diversity, and the test obtains the TRS value in this case.
  • the testing process is as follows: As shown in FIG. 2, steps 201 to 205 are included.
  • the receiving antenna 1 of the device under test is turned on, and the receiving antenna 2 is turned off, and the TRS value in this case is measured.
  • This TRS is the TRS when the antenna 1 is used alone, and the testing process is as shown in FIG. 1 , including step 201 to Step 205.
  • the receiving antenna 2 of the device under test is turned on, the receiving antenna 1 is turned off, and the TRS value in this case is measured.
  • This TRS is the TRS when the antenna 1 is used alone, and the testing process is as shown in FIG. 1 , including step 201 to Step 205.
  • Step (a2) and step (a3) are optional steps, which can be used to compare the case where the receiving antenna 1 and the receiving antenna 2 are both turned on, which is useful for comparing the performance of single antenna receiving and diversity receiving; and can also be used to obtain each Performance baseline for an antenna when received separately.
  • the application example corresponds to transmission mode 2.
  • the TRS test method in transmit diversity mode is:
  • the n receiving antennas of the device under test are both turned on and receive the data stream. For the DUT of the device under test, this is the receive diversity.
  • the test obtains the TRS value in this case.
  • the test process is shown in Figure 2.
  • the indication includes steps 201 to 205.
  • the application example corresponds to the transmission mode 3.
  • the TRS test method in the open-loop space division multiplexing mode is:
  • the (Cl) base station simultaneously transmits two data streams.
  • the TRS value of the data stream 2 is measured.
  • the specific process is shown in FIG. 2.
  • the base station simultaneously transmits two data streams.
  • the TRS value of the data stream 2 is measured.
  • the specific process is as shown in FIG. 2 .
  • the base station simultaneously transmits two data streams.
  • the sum of the data stream 1 and the data stream 2 that is, the total data stream satisfies the test condition
  • the sum of the two data streams that is, the TRS value of the total data stream
  • Step (c3) is used to compare with step (cl) or step (c2), and step (c3) is an optional step.
  • the application example corresponds to the transmission mode 4.
  • the TRS test method in the closed-loop space division multiplexing mode is:
  • the base station simultaneously transmits two data streams.
  • the TRS value of the data stream 1 is measured.
  • the specific process is shown in FIG. 2;
  • the base station simultaneously transmits two data streams.
  • the TRS value of the data stream 2 is measured. The specific process is shown in FIG. 2.
  • the base station simultaneously transmits two data streams.
  • the sum of data stream 1 and data stream 2 that is, the total data stream satisfies the test condition, the specific process is as shown in FIG. 2.
  • Step (d3) is used to compare with step (dl) or step (d2), and step (d3) is an optional step.
  • the application instance corresponds to the transmission mode 6.
  • the TRS test method is as follows:

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Description

一种多天线系统中总辐射灵敏度的测试方法及系统 技术领域
本发明涉及无线通信产品的射频测试技术领域， 尤其涉及一种多天线 多输入多输出 （ MIMO ) 系统中总辐射灵敏度的测试方法及系统。 背景技术
随着现代工业的发展， 各类无线通讯产品只有具备良好的发射和接收 性能才能保证通讯质量， 即： 总辐射功率（ TRP , Total Radiated Power )要 高于一定值， 总辐射灵敏度（TRS, Total Radiated Sensitivity )要低于一定 值， 也就是说空间射频性能（OTA, Over The Air )测试指标要良好。
蜂窝通讯标准化协会（CTIA ) 为了保障移动终端设备在网络中正常使 用， 制定了移动终端空间射频性能的测试标准——《The test plan for mobile station OTA performance)) , 目前， 4艮多运营商都要求进入其网络的移动终 端空间射频性能要按照 CTIA标准要求进行测试， TRP、 TRS要满足一定的 限值要求。
在 CTIA标准中， 对于 TRP和 TRS的测量是在以待测设备为球心的球 面上进行取点测试， 如图 1 所示。 为了准确评价被测设备的发射和接收性 能， 需要选取足够多的测试点。 被测无线通信产品放置于一测试装置的第 一旋转轴或第二旋转轴上， 第一旋转轴旋转范围为 0-180度，第二旋转轴旋 转范围为 0-360度。其中 TRP测试需要每隔 15度 Θ ( 0-180度）和 Φ ( 0-360 度）取一个测试点，总共需要测试 264个点。 TRS测试需每隔 30度 θ ( 0-180 度）和 Φ ( 0-360度）取一个测试点， 共需测试 60个点。 由于测试点是等 角度选取的， 所以其在球面上是非均匀分布的。 TRP、 TRS 需要根据所有 的测试点进行球面积分计算得出。 在积分运算中， 对位于 θ=0, θ=180的两 个测试点， 其正弦值为零， 所以这两个点不进行测试。
总辐射灵敏度 TRS定义为：
4π
TRS =
EISe(Q; f) EIS^- )
其中 Ω为方向所对应的角区域实体， f为频率， 和 代表两种互相正交 的极化， 有效全向灵敏度 ( EIS )被定义为每种极化方式下达到敏感度门限 时， 天线输出端的可用功率。
TRS可以用下面公式等效计算：
Figure imgf000004_0001
公式中的 N和 M是测量角 θη角和 角的取样点数目。
目前的国际标准中尚未对多天线系统下的射频指标的测试方法和测试 过程进行规定。 发明内容
本发明要解决的技术问题是提供一种多天线系统中总辐射灵敏度的测 试方法及系统， 针对多天线系统下不同的传输模式提出了相应的总辐射灵 敏度的测试方案。
为了解决上述问题， 本发明提供了一种多天线系统中总辐射灵敏度的 测试方法， 该方法包括： 设置基站发送的数据流数目为 1 , 待测设备的接收 天线数目为 n;
所述待测设备开启 n根接收天线并在预设位置接收基站下发的数据流， 在每个测试点上， 当所述数据流满足测试条件时基站测量 E/ 和 E/ 之后 根据每个测试点测量的 E/ 和 E/ 计算出所述数据流的总辐射灵敏度； 其 中， 所述 n > 2, E/ 为测试点 角度的有效全向灵敏度； E/ 为测试点 角 度的有效全向灵敏度。
进一步地， 所述基站还在每个测试点上测量所述待测设备的每根天线 单独开启时的 EISe和 EIS , 并根据每个测试点的 EISe和 EIS计算出所述数据 流的总辐射灵敏度。
进一步地， 所述测试条件具体为： 在至少 20000个比特的时间段内， 所述待测设备接收的所述数据流的误码率保持在以下范围： 0.8% 误码率 < 1.2%。
进一步地， 所述方法适用于单天线端口 0、 单天线端口 5、 发射分集、 多用户多天线、 闭环单流预编码的传输模式中的至少一种。
进一步地， 所述方法适用于单天线端口 0、单天线端口 5的传输模式中 的至少一种。
本发明还提供一种多天线系统中总辐射灵敏度的测试方法， 该方法包 括： 设置基站发送的数据流数目为 m, 待测设备的接收天线数目为 n;
所述待测设备开启 n根接收天线， 并在预设位置接收基站下发的数据 流； 所述基站同时发送 m个数据流， 对于每个待测数据流均测试其总辐射 灵敏度； 其中，
测试所述每个待测数据流的总辐射灵敏度具体包括： 在每个测试点上， 当所述待测数据流满足测试条件时基站测量 E/ 和 E/ ；之后根据每个测试 点测量的 E/ 和 E/ 计算出所述待测数据流的总辐射灵敏度； 所述 m > 2, 且 n > m。
进一步地， 当所述 m个待测数据流的总和满足测试条件时， 基站测量 每个测试点处的 EIS^ EIS ,之后根据每个测试点的 E/ 和 E/ 计算出所述 m个待测数据流的总辐射灵敏度。
进一步地， 所述测试条件具体为： 在至少 20000个比特的时间段内， 待测数据流的误码率保持在以下范围： 0.8% 误码率 1.2%; 当待测数据流为 m时， 所述待测数据流的误码率为： 所述 m个待测数 据流总的误码率。
进一步地， 所述方法适用于开环空分复用、 闭环空分复用、 多用户多 天线及单天线端口 5的传输模式中的至少一种。
本发明还提供一种多天线系统中总辐射灵敏度的测试系统， 该系统包 括基站和待测设备； 其中，
所述待测设备， 用于开启 n根接收天线接收基站下发的数据流； 所述基站， 用于向所述待测设备发送数据流， 以及在每个测试点上， 当所述数据流满足测试条件时测量 E/ 和 E/ , 并根据每个测试点测量的
EIS9和 ΕΚφ计算出所述数据流的总辐射灵敏度；
所述数据流的数目为 1 , n > 2。
进一步地， 所述待测设备， 还用于单独开启每根接收天线时接收基站 下发的数据流；
所述基站， 还用于当待测设备单独开启每根接收天线时向所述待测设 备发送数据流， 以及在每个测试点上， 当所述数据流满足测试条件时测量 EISe和 EIS , 并根据每个测试点测量的 EISe和 E1S9计算出所述数据流的总辐 射灵敏度。
进一步地， 所述测试条件具体为： 在至少 20000个比特的时间段内， 所述待测设备接收的所述数据流的误码率保持在以下范围： 0.8% 误码率 < 1.2%。
进一步地， 所述天线的传输模式具体包括： 单天线端口 0、 单天线端口 5、 发射分集、 多用户多天线、 闭环单流预编码的传输模式中的至少一种。
进一步地， 所述天线的传输模式具体包括： 单天线端口 0、 单天线端口 5的传输模式中的至少一种。
本发明还提供一种多天线系统中总辐射灵敏度的测试系统， 该系统包 括基站和待测设备； 其中，
所述待测设备， 用于开启 n根接收天线接收基站下发的数据流； 所述基站， 用于向所述待测设备同时发送 m个数据流， 以及在每个测 试点上， 当待测数据流满足测试条件时测量 E/ 和 E/ 并根据每个测试点 测量的 EISe和 ΕΚφ计算出所述待测数据流的总辐射灵敏度；
所述 m > 2, 且 n > m。
进一步地， 所述基站， 还用于在每个测试点上， 当所述 m个数据流满 足测试条件时测量 EISe和 ΕΚφ , 并根据每个测试点的 EISe和 E1S9计算出所述 m个数据流的总辐射灵敏度。
进一步地， 所述测试条件具体为： 在至少 20000个比特的时间段内， 待测数据流的误码率保持在以下范围： 0.8% 误码率 1.2%;
当待测数据流为 m时， 所述待测数据流的误码率为： 所述 m个待测数 据流总的误码率。
进一步地， 所述天线的传输模式具体包括： 开环空分复用、 闭环空分 复用、 多用户多天线、 单天线端口 5的传输模式中的至少一种。
综上所述， 本发明提供了一种多天线系统中 TRS的测试系统及方法， 对于 MIMO系统， 每个用户可以同时发送或接收 2个、 或 2个以上的数据 流， 本发明给出了多天线情况下， 测试 1个和 2个数据流 TRS的方法和流 程， 给出了多天线系统中 TRS测试的解决方案。 附图说明
图 1是以被测无线通讯产品为原点建立的球面坐标系示意图； 图 2是本发明多天线系统中数据流的 TRS测试方法流程图。 具体实施方式 本发明提供一种多天线系统中总辐射灵敏度的测试系统及方法， 以下 通过系统实施例及方法实施例详细进行说明。
系统实施例一：
本实施例提供一种多天线系统中总辐射灵敏度的测试系统， 该系统包 括基站及待测设备。 其中， 待测设备用于开启 n根接收天线接收基站下发 的数据流。 基站用于向待测设备发送数据流， 以及在每个测试点上， 当该 数据流满足测试条件时测量 E/ 和 E/ , 并根据每个测试点的 E/ 和 E/ 计 算出该数据流的 TRS。 其中， 数据流的数目为 1 , n > 2„
上述测试条件为： 在预设时间内待测设备接收的待测数据流的误码率 ( BER )保持在预设范围， 预设时间可以根据需要进行设置， 如可以但不 限于是 20000个 bit,待测设备接收的待测数据流的 BER的预设范围也可以 根据需要进行设置， 如可以但不限于是 0.8% BER 1.2%。
上述系统适用于以下传输模式： 单天线端口 0、 单天线端口 5、 发射分 集、 多用户多天线及闭环单流预编码。
进一步地， 待测设备还可以用于单独开启每根接收天线时接收基站下 发的数据流。
基站还可以用于当待测设备单独开启每根接收天线时向待测设备发送 数据流， 以及在每个测试点上， 当数据流满足测试条件时测量 E/ 和 E/ 并根据每个测试点的 E/ 和 E/ 计算出数据流的 TRS。
对于待测设备单独开启每根接收天线接收基站下发的数据流的情况可 适用于单天线端口 0及单天线端口 5的传输模式。
系统实施例二：
一种多天线系统中总辐射灵敏度的测试系统， 该系统包括基站及待测 设备。 其中， 待测设备用于开启 n根接收天线接收基站下发的数据流。 基 站用于向所述待测设备同时发送 m个数据流， 以及在每个测试点上， 当待 测数据流满足测试条件时测量 E/ 和 E/ , 并根据每个测试点的 EIS EISrp 计算出所述待测数据流的 TRS; m > 2, 且 n > m。
基站还可以用于在每个测试点上， 当 m个数据流满足测试条件时测量 EIS^ EIS 并根据每个测试点的 E/ 和 E/ 计算出这 m个数据流的 TRS。
所述测试条件为： 在预设时间内待测设备接收的待测数据流的 BER保 持在预设范围。
当待测数据流为 m时， 这 m个数据流的总和满足测试条件是指： 在预 设时间内待测设备接收的 m个数据流待测数据流总的 BER保持在预设范 围。
预设时间可以根据需要进行设置， 如可以但不限于是 20000个 bit, 待 测设备接收的待测数据流的 BER的预设范围也可以根据需要进行设置， 如 可以但不限于是 0.8% < BER < 1.2%。
本实施例所述的系统适用于以下传输模式： 开环空分复用、 闭环空分 复用、 多用户多天线及单天线端口 5。
一种多天线系统中总辐射灵敏度的测试方法， 在测试 TRS值之前先进 行如步骤 101至步骤 104所述的初始化建立过程：
步骤 101 : 设置下行物理信道功率如表 1所示:
Figure imgf000009_0001
表 1 步骤 102: 待测设备电源开启。
步骤 103: 根据普通呼叫建立过程进行呼叫建立， 功率控制算法设置为 Power Control Algorithm 2 , 压缩模式设置为 OFF。
步骤 104: 待测设备进入闭环测试模式 2 ( loopback test mode 2 ) , 开 始闭环测试。
完成上述初始化建立过程后即可进行 TRS值的测试过程， 以下详细介 绍不同传输模式时 TRS值的测试方法。
方法实施例一：
该实施例为传输模式一即单天线端口 0( Single-antenna port 0 ) ,在 LTE 版本 8中， 该单天线端口 0模式下仅有一个数据流及 2根接收天线， 而在 其他版本中， 比如 LTE版本 9、 LTE版本 10等， 基站发送的数据流仍为 1 个， 待测设备的接收天线的数目可以大于 2。
设接收天线为 n, J- n > 2, 单天线端口 0下的测试过程为： 待测设备 的 n根接收天线都开启， 同时接收数据流， 对于待测设备来说这种情况为 接收分集， 测试得到这种情况下的 TRS值， 具体过程如图 2所示， 包括： 步骤 201： 基站连续发送 Up功率的控制命令给待测设备。
步骤 202: 当待测设备达到最大发射功率时， 开始向基站发送 PN15数 据模式。
步骤 203: 将待测设备放置于预设位置， 如可以是相对于人脑模型的适 当位置。
该步骤还可以是在步骤 201之前， 本发明对此不作限制。
步骤 204: 对于选取的每个测试点， 当待测数据流 j满足测试条件时基 站测量 EIS, 包括 E/ 和 E/ EIS为基站从特定方向发送给待测设备的发 射功率， 上述测试条件是指： 在预设时间内待测设备接收的待测数据流的 BER保持在预设范围， 预设时间可以根据需要进行设置， 如可以但不限于 是 20000个 bit,待测设备接收的待测数据流的 BER的预设范围也可以根据 需要进行设置， 如可以但不限于是 0.8% BER 1.2%。
该步骤中， 测试点的选取方式同现有技术中单天线模式下测试点的选 取方式， EIS EIS 的测量方法同现有技术中单天线模式下 EIS EISrp的测 量方法。
步骤 205: 将测得每个测试点上的 E/ 和 E/ 值代入预设公式计算出 TRS。
上述预设公式可以但不限于是：
2NM
Figure imgf000011_0001
Ν和 Μ是测量角 θη角和 角的取样点数目。
该模式下， 还可以对待测设备的每根接收天线开启单独开启， 而其他 接收天线均关闭时， 基站测量此情况下的 TRS值， 此 TRS为各接收天线单 独使用时的 TRS, 其测试过程如图 2所示， 包括如上所述的步骤 201至步 骤 205。
方法实施例二：
该实施例为传输模式二即发射分集（ Transmit diversity ) , 在 LTE版本 8中， 该发射分集模式下仅有一个数据流及 2根接收天线， 而在其他版本， 比如 LTE版本 9、 LTE版本 10时， 基站发送的数据流仍为 1个， 待测设备 的接收天线的数目可以大于 2。
在发射分集模式下待测设备需要将 n根天线都开启进行接收， 其 TRS 测试方法为： 待测设备的 n根接收天线都开启， 同时接收数据流， 对于待 测设备来说这种情况为接收分集， 测试得到这种情况下的 TRS值， 具体过 程如图 2所示， 包括：
步骤 201： 基站连续发送 Up功率的控制命令给待测设备。 步骤 202: 当待测设备达到最大发射功率时， 开始向基站发送 PN15数 据模式。
步骤 203: 将待测设备放置于预设位置， 如可以是相对于人脑模型的适 当位置。
该步骤还可以是在步骤 201之前， 本发明对此不作限制。
步骤 204: 对于选取的每个测试点， 当待测数据流 j满足测试条件时基 站测量 EIS, 包括 E/ 和 E/ EIS为基站从特定方向发送给待测设备的发 射功率， 上述测试条件是指： 在预设时间内待测设备接收的待测数据流的 BER保持在预设范围， 预设时间可以根据需要进行设置， 如可以但不限于 是 20000个 bit,待测设备接收的待测数据流的 BER的预设范围也可以根据 需要进行设置， 如可以但不限于是 0.8% BER 1.2%。
该步骤中， 测试点的选取方式同现有技术中单天线模式下测试点的选 取方式， EIS^ EH^的测量方法同现有技术中单天线模式下 EIS^ EIS 的测 量方法。
步骤 205: 将测得的每个测试点上的 E/ 和 E/ 值代入预设公式计算出 TRS。
上述预设公式可以但不限于是：
2NM
Figure imgf000012_0001
Ν和 Μ是测量角 θη角和 角的取样点数目。
方法实施例三：
该实施例为传输模式三即开环空分复用 （ Open-loop spatial multiplexing ) , 在 LTE版本 8中， 该开环空分复用模式下有 2个数据流， 在 LTE其他版本中， 比如 LTE版本 9、 LTE版本 10, 基站发送的数据流的 数目为 m, 且 m > 2。 在开环空分复用模式下 TRS测试方法为， 基站同时发送 m个数据流， 对于每个数据流， 均测量其 TRS值， 对于数据流 j的测试方法为： 基站同 时发送 m个数据流， 待测设备的 n根接收天线均开启， 当数据流 j满足测 试条件时， 测试出数据流 j的 TRS值， 具体过程如图 2所示， 包括：
步骤 201： 基站连续发送 Up功率的控制命令给待测设备。
步骤 202: 当待测设备达到最大发射功率时， 开始向基站发送 PN15数 据模式。
步骤 203: 将待测设备放置于预设位置， 如可以是相对于人脑模型的适 当位置。
该步骤还可以是在步骤 201之前， 本发明对此不作限制。
步骤 204: 对于选取的每个测试点， 当待测数据流 j满足测试条件时基 站测量 EIS, 包括 E/ 和 E/ EIS为基站从特定方向发送给待测设备的发 射功率， 上述测试条件是指： 在预设时间内待测设备接收的待测数据流的 BER保持在预设范围， 预设时间可以根据需要进行设置， 如可以但不限于 是 20000个 bit,待测设备接收的待测数据流的 BER的预设范围也可以根据 需要进行设置， 如可以但不限于是 0.8% BER 1.2%。
该步骤中， 测试点的选取方式同现有技术中单天线模式下测试点的选 取方式， EIS EIS 的测量方法同现有技术中单天线模式下 EIS EISrp的测 量方法。
步骤 205: 测得每个测试点上的 E/ 和 E/ 值后， 并根据下面公式计算 得到 TRS:
2NM
Figure imgf000013_0001
Ν和 Μ是测量角 θη角和 角的取样点数目。
进一步地， 该模式下还可以对这 m个数据流总的 TRS值进行测试， 其 方法为： 基站同时发送 m个数据流， 当这 m个数据流的总和， 即总数据流 满足测试条件时，测得这 m个数据流总的 TRS值，其测试过程如图 2所示， 包括如上所述的步骤 201至步骤 205, 步骤 204中待测数据流是这 m个数 据流， 这 m个数据流的总和满足测试条件是指： 在预设时间内待测设备接 收的待测数据流的 BER保持在预设范围，预设时间可以根据需要进行设置， 如可以但不限于是 20000个 bit,待测设备接收的待测数据流的 BER的预设 范围也可以根据需要进行设置， 如可以但不限于是 0.8% BER 1.2%。
m个数据流总的误码率是指： 这 m个数据流总的错误比特数与 m个数 据流总的比特数的比值。
方法实施例四：
该实施例为传输模式四即闭环空分复用 （ Closed-loop spatial multiplexing ) , 在 LTE版本 8中， 该闭环空分复用模式下有 2个数据流， 在 LTE其他版本中， 比如 LTE版本 9、 LTE版本 10, 基站发送的数据流的 数目为 m, 且 m > 2。
在开环空分复用模式下 TRS测试方法为： 基站同时发送 m个数据流， 对于每个数据流，均测量其 TRS值，对于待测数据流 j的 TRS测试方法为： 基站同时发送 m个数据流， 待测设备的 n根天线均开启， 当数据流 j满足 测试条件时， 测试出数据流 j的 TRS值； 具体过程如图 2所示， 包括： 步骤 201 : 基站连续发送 Up功率的控制命令给待测设备。
步骤 202: 当待测设备达到最大发射功率时， 开始向基站发送 PN15数 据模式。
步骤 203: 将待测设备放置于预设位置， 如可以是相对于人脑模型的适 当位置。
该步骤还可以是在步骤 201之前， 本发明对此不作限制。
步骤 204: 对于选取的每个测试点， 当待测数据流 j满足测试条件时基 站测量 EIS, 包括 E/ 和 E/ EIS为基站从特定方向发送给待测设备的发 射功率， 上述测试条件是指： 在预设时间内待测设备接收的待测数据流的 BER保持在预设范围， 预设时间可以根据需要进行设置， 如可以但不限于 是 20000个 bit,待测设备接收的待测数据流的 BER的预设范围也可以根据 需要进行设置， 如可以但不限于是 0.8% BER 1.2%。
该步骤中， 测试点的选取方式同现有技术中单天线模式下测试点的选 取方式， EISe EIS 的测量方法同现有技术中单天线模式下 EISe EIS 的测 量方法。
步骤 205: 测得每个测试点上的 E/ 和 E/ 值后， 并根据下面公式计算 得到 TRS:
2NM
+ 1 sinfe )
Ν和 Μ是测量角 θη角和 角的取样点数目。
进一步地， 该模式下还可以对这 m个数据流总的 TRS值进行测试， 其 方法为： 基站同时发送 m个数据流， 当这 m个数据流的总和， 即总数据流 满足测试条件时，测得这 m个数据流总的 TRS值，其测试过程如图 2所示， 包括如上所述的步骤 201至步骤 205, 步骤 204中待测数据流是这 m个数 据流， 这 m个数据流的总和满足测试条件是指： 在预设时间内待测设备接 收的 m个待测数据流总的 BER保持在预设范围，预设时间可以根据需要进 行设置，如可以但不限于是 20000个 bit,待测设备接收的待测数据流的 BER 的预设范围也可以根据需要进行设置， 如可以但不限于是 0.8% BER 1·2%。
m个数据流总的误码率是指： 这 m个数据流总的错误比特数与 m个数 据流总的比特数的比值。
万法实施例五： 该实施例为传输模式五即多用户 MIMO ( Multi-user MIMO ) , 在 LTE 版本 8中， 此模式下， 每个待测设备仅有 1个数据流， 在 LTE其他版本中， 比如 LTE版本 9、 LTE版本 10, 基站发送的数据流的数目 m可以为 1 , 也 可以大于或等于 2。
( A )在 LTE版本 8中， 多用户 MIMO模式下每个待测设备仅接收 1 个数据流， 需要将 2根接收天线均开启同时接收数据流， 此时 TRS测试方 法为： 待测设备的接收天线 1与接收天线 2都开启， 同时接收数据流， 对 于待测设备来说这种情况为接收分集， 测试得到这种情况下的 TRS值， 具 体过程如图 2所示， 包括以下步骤：
步骤 201 : 基站连续发送 Up功率的控制命令给待测设备。
步骤 202: 当待测设备达到最大发射功率时， 开始向基站发送 PN15数 据模式。
步骤 203: 将待测设备放置于预设位置， 如可以是相对于人脑模型的适 当位置。
该步骤还可以是在步骤 201之前， 本发明对此不作限制。
步骤 204: 对于选取的每个测试点， 当待测数据流满足测试条件时基站 测量 EIS, 包括 E/ 和 E/ EIS为基站从特定方向发送给待测设备的发射 功率，上述测试条件是指：在预设时间内待测设备接收的待测数据流的 BER 保持在预设范围， 预设时间可以根据需要进行设置， 如可以但不限于是 20000个 bit, 待测设备接收的待测数据流的 BER的预设范围也可以根据需 要进行设置， 如可以但不限于是 0.8% BER 1.2%。
步骤 205: 将测量出的每个测试点上的 E/ 和 E/ 值代入预设公式计算 出 TRS。
上述预设公式可以但不限于是： 2NM
TRS ¾
+■ sm
ElSe(en^m ) ElSv(0n^m ) N和 M是测量角 θη角和 角的取样点数目。
( Β )在 LTE其他版本中， 比如 LTE版本 9、 LTE版本 10, 若数据流 的数目 m仍为 1则 TRS测试方法同本实施例的方式（A )所述， 若数据流 的数目 m > 2, 多用户 MIMO模式下 TRS测试方法为， 基站同时发送 m个 数据流，对于每个待测数据流，基站均测量其 TRS值，对于数据流 j的 TRS 的测试方法为： 基站同时发送 m个数据流， 待测设备的 n根天线均开启， 当数据流 j满足测试条件时， 测试出数据流 j的 TRS值； 具体过程如图 2 所示， 包括：
步骤 201 : 基站连续发送 Up功率的控制命令给待测设备。
步骤 202: 当待测设备达到最大发射功率时， 开始向基站发送 PN15数 据模式。
步骤 203: 将待测设备放置于预设位置， 如可以是相对于人脑模型的适 当位置。
该步骤还可以是在步骤 201之前， 本发明对此不作限制。
步骤 204: 对于选取的每个测试点， 当待测数据流 j满足测试条件时基 站测量 EIS, 包括 E/ 和 E/ EIS为基站从特定方向发送给待测设备的发 射功率， 上述测试条件是指： 在预设时间内待测设备接收的待测数据流的 BER保持在预设范围， 预设时间可以根据需要进行设置， 如可以但不限于 是 20000个 bit,待测设备接收的待测数据流的 BER的预设范围也可以根据 需要进行设置， 如可以但不限于是 0.8% BER 1.2%。
该步骤中， 测试点的选取方式同现有技术中单天线模式下测试点的选 取方式， EIS^ EIS 的测量方法同现有技术中单天线模式下 EIS EISrp的测 量方法。 步骤 205: 将测量出的每个测试点上的 E/ 和 E/ 值代入预设公式计算 出 TRS。
上述预设公式可以但不限于是：
Figure imgf000018_0001
N和 M是测量角 θη角和 角的取样点数目。
进一步地， 该模式下还可以对这 m个数据流总的 TRS值进行测试， 其 方法为： 基站同时发送 m个数据流， 当这 m个数据流的总和， 即总数据流 满足测试条件时，测得这 m个数据流总的 TRS值，其测试过程如图 2所示， 包括如上所述的步骤 201至步骤 205, 步骤 204中待测数据流是这 m个数 据流， 这 m个数据流的总和满足测试条件是指： 在预设时间内待测设备接 收的 m个待测数据流总的 BER保持在预设范围，预设时间可以根据需要进 行设置，如可以但不限于是 20000个 bit,待测设备接收的待测数据流的 BER 的预设范围也可以根据需要进行设置， 如可以但不限于是 0.8% BER 1·2%。
m个数据流总的误码率是指： 这 m个数据流总的错误比特数与 m个数 据流总的比特数的比值。
方法实施例六：
该实施例为传输模式六即闭环单流预编码 （ Closed-loop Rank=l precoding ) , 在 LTE版本 8中， 该模式下每个待测设备仅有 1个数据流， 2 根天线， 而其他版本中， 比如 LTE版本 9、 LTE版本 10时， 基站发送的数 据流仍为 1个， 待测设备的接收天线的数目可以大于 2。
在闭环单流预编码模式下， 待测设备需要将 n根天线都开启进行接收， 其 TRS测试方法为： 待测设备的 n根接收天线都开启， 同时接收数据流， 对于待测设备 DUT来说这种情况为接收分集，测试得到这种情况下的 TRS 值； 具体过程如图 2所示， 包括：
步骤 201： 基站连续发送 Up功率的控制命令给待测设备。
步骤 202: 当待测设备达到最大发射功率时， 开始向基站发送 PN15数 据模式。
步骤 203: 将待测设备放置于预设位置， 如可以是相对于人脑模型的适 当位置。
该步骤还可以是在步骤 201之前， 本发明对此不作限制。
步骤 204: 对于选取的每个测试点， 当待测数据流 j满足测试条件时基 站测量 EIS, 包括 E/ 和 E/ EIS为基站从特定方向发送给待测设备的发 射功率， 上述测试条件是指： 在预设时间内待测设备接收的待测数据流的 BER保持在预设范围， 预设时间可以根据需要进行设置， 如可以但不限于 是 20000个 bit,待测设备接收的待测数据流的 BER的预设范围也可以根据 需要进行设置， 如可以但不限于是 0.8% BER 1.2%。
该步骤中， 测试点的选取方式同现有技术中单天线模式下测试点的选 取方式， EISe EIS 的测量方法同现有技术中单天线模式下 EISe EIS 的测 量方法。
步骤 205: 将测得的每个测试点上的 E/ 和 E/ 值代入预设公式计算出 待测数据流的 TRS。
上述预设公式可以但不限于是：
2NM
Figure imgf000019_0001
N和 M是测量角 θη角和 角的取样点数目。
方法实施例七：
该实施例为传输模式七， 即单天线端口 5 ( Single-antenna port5 ) , 这 种传输模式使用的是波束成形技术（ beamforming ) , 在 LTE版本 8中， 该 模式下仅有一个数据流及 2根接收天线， 而在其他版本中， 数据流的数目 m可以大于或等于 2, 接收天线的数目 n可以大于 2。
( A )在 LTE版本 8中， 单天线端口 5模式下每个待测设备仅有 1个 数据流， 待测设备可以使用 1根接收天线或 2根接收天线接收数据流， 此 时 TRS测试方法为：
( A1 )接收天线 1与接收天线 2都开启， 同时接收数据流， 对于待测 设备来说这种情况为接收分集， 测试这种情况下的 TRS值的过程如图 2所 示， 包括以下步骤：
步骤 201 : 基站连续发送 Up功率的控制命令给待测设备。
步骤 202: 当待测设备达到最大发射功率时， 开始向基站发送 PN15数 据模式。
步骤 203: 将待测设备放置于预设位置， 如可以是相对于人脑模型的适 当位置。
该步骤还可以是在步骤 201之前， 本发明对此不作限制。
步骤 204: 对于选取的每个测试点， 当待测数据流满足测试条件时基站 测量 EIS, 包括 E/ 和 E/ EIS为基站从特定方向发送给待测设备的发射 功率，上述测试条件是指：在预设时间内待测设备接收的待测数据流的 BER 保持在预设范围， 预设时间可以根据需要进行设置， 如可以但不限于是 20000个 bit, 待测设备接收的待测数据流的 BER的预设范围也可以根据需 要进行设置， 如可以但不限于是 0.8% BER 1.2%。
步骤 205: 将测量出的每个测试点上的 E/ 和 E/ 值代入预设公式计算 出 TRS。
上述预设公式可以但不限于是：
Figure imgf000020_0001
N和 M是测量角 θη角和 角的取样点数目。
( A2 )该模式下， 基站还可以对待测设备的每根接收天线单独开启并 接收基站下发的数据流的情况下的 TRS进行测试； 具体如下：
( A21 )待测设备的接收天线 1开启， 接收天线 2关闭， 测得此情况下 的 TRS值， 此 TRS为天线 1单独使用时的 TRS, 其测试过程如图 1所示， 包括步骤 201至步骤 205。
( A22 )待测设备的接收天线 2开启， 接收天线 1关闭， 测得此情况下 的 TRS值， 此 TRS为天线 1单独使用时的 TRS, 其测试过程如图 1所示， 包括步骤 201至步骤 205。
情况（ A2 )下测试出的 TRS值可用于对比单天线接收与分集接收的性 能； 还可以用于得到每一个天线单独接收时的性能基线。
( B )在 LTE其他版本中， 比如 LTE版本 9、 LTE版本 10等， 若数据 流的数目 m仍为 1则 TRS测试方法同方式（A )所述， 若数据流的数目 m > 2, 多用户 MIMO模式下 TRS测试方法为， 基站同时发送 m个数据流， 对于每个数据流， 基站均测量其 TRS值， 对于数据流 j的测试方法为： 基 站同时发送 m个数据流， 待测设备的 n根天线均开启， 当数据流 j满足测 试条件时， 测试出数据流 j的 TRS值； 具体过程如图 2所示， 包括：
步骤 201： 基站连续发送 Up功率的控制命令给待测设备。
步骤 202: 当待测设备达到最大发射功率时， 开始向基站发送 PN15数 据模式。
步骤 203: 将待测设备放置于预设位置， 如可以是相对于人脑模型的适 当位置。
该步骤还可以是在步骤 201之前， 本发明对此不作限制。
步骤 204: 对于选取的每个测试点， 当待测数据流 j满足测试条件时基 站测量 EIS, 包括 E/ 和 E/ EIS为基站从特定方向发送给待测设备的发 射功率， 上述测试条件是指： 在预设时间内待测设备接收的待测数据流的
BER保持在预设范围， 预设时间可以根据需要进行设置， 如可以但不限于 是 20000个 bit,待测设备接收的待测数据流的 BER的预设范围也可以根据 需要进行设置， 如可以但不限于是 0.8% BER 1.2%。
该步骤中， 测试点的选取方式同现有技术中单天线模式下测试点的选 取方式， EIS EISrfl的测量方法同现有技术中单天线模式下 E1S E1S9的测 量方法。
步骤 205: 将测量出的每个测试点上的 E/ 和 E/ 值代入预设公式计算 出 TRS。
上述预设公式可以但不限于是：
2NM
Figure imgf000022_0001
N和 M是测量角 θη角和 角的取样点数目。
进一步地， 该模式下， 还可以对这 m个数据流总的 TRS值进行测试， 其方法为： 基站同时发送 m个数据流， 当这 m个数据流的总和， 即总数据 流满足测试条件时， 测得这 m个数据流总的 TRS值， 其测试过程如图 2所 示， 包括如上所述的步骤 201至步骤 205, 步骤 204中待测数据流是这 m 个数据流， 这 m个数据流的总和满足测试条件是指： 在预设时间内待测设 备接收的 m个待测数据流总的 BER保持在预设范围，预设时间可以根据需 要进行设置， 如可以但不限于是 20000个 bit, 待测设备接收的待测数据流 的 BER的预设范围也可以根据需要进行设置， 如可以但不限于是 0.8% BER < 1·2%。
m个数据流总的误码率是指： 这 m个数据流总的错误比特数与这 m个 数据流总的比特数的比值。
以下通过多个应用实例进一步阐述本发明， 以下应用实例均以在 LTE 版本 8为例进行说明。
应用实例 1 :
该应用实例对应传输模式一， 在 LTE版本 8中， 单天线端口 0模式下 TRS测试方法为：
( al )待测设备的接收天线 1与接收天线 2都开启， 同时接收数据流， 对于待测设备 DUT来说这种情况为接收分集，测试得到这种情况下的 TRS 值， 其测试过程如图 2所示， 包括步骤 201至步骤 205。
( a2 )待测设备的接收天线 1开启， 接收天线 2关闭， 测得此情况下 的 TRS值， 此 TRS为天线 1单独使用时的 TRS, 其测试过程如图 1所示， 包括步骤 201至步骤 205。
( a3 )待测设备的接收天线 2开启， 接收天线 1 关闭， 测得此情况下 的 TRS值， 此 TRS为天线 1单独使用时的 TRS, 其测试过程如图 1所示， 包括步骤 201至步骤 205。
步骤（ a2 )和步骤（ a3 )为可选步骤， 可用于与接收天线 1及接收天线 2都开启的情况进行对比，有助于对比单天线接收与分集接收的性能； 还可 以用于得到每一个天线单独接收时的性能基线。
应用实例 2:
该应用实例对应传输模式二， 在 LTE版本 8中， 发射分集模式下 TRS 测试方法为：
( bl )待测设备的 n根接收天线都开启， 同时接收数据流， 对于待测 设备 DUT来说这种情况为接收分集，测试得到这种情况下的 TRS值，其测 试过程如图 2所示， 包括步骤 201至步骤 205。
应用实例 3:
该应用实例对应传输模式三， 在 LTE版本 8中， 开环空分复用模式下 TRS测试方法为： ( Cl )基站同时发送两个数据流， 当数据流 1 满足测试条件时， 测得 数据流 2的 TRS值， 具体过程如图 2所示。
( c2 )基站同时发送两个数据流， 当数据流 2 满足测试条件时， 测得 数据流 2的 TRS值， 具体过程如图 2所示。
( c3 )基站同时发送两个数据流， 当数据流 1和数据流 2的总和， 即 总数据流满足测试条件时，测得两个数据流的总和， 即总数据流的 TRS值， 具体过程如图 2所示。
步骤（ c3 )用于与步骤（ cl )或步骤（ c2 )进行对比， 步骤（ c3 )为可 选的步骤。
应用实例 4:
该应用实例对应传输模式四， 在 LTE版本 8中， 闭环空分复用模式下 TRS测试方法为：
U1 )基站同时发送两个数据流， 当数据流 1 满足测试条件时， 测得 数据流 1的 TRS值， 具体过程如图 2所示；
U2 )基站同时发送两个数据流， 当数据流 2 满足测试条件时， 测得 数据流 2的 TRS值， 具体过程如图 2所示。
U3 )基站同时发送两个数据流， 当数据流 1和数据流 2的总和， 即 总数据流满足测试条件时， 具体过程如图 2所示。
步骤（ d3 )用于与步骤（ dl )或步骤（ d2 )进行对比， 步骤（ d3 ) 为 可选的步骤。
应用实例 5 :
该应用实例对应传输模式六， 在 LTE版本 8中， Rank=l precoding仅 有 1个数据流，此模式下待测设备需要将 2根天线都开启进行接收，其 TRS 测试方法：
( el )待测设备的接收天线 1与接收天线 2都开启， 同时接收数据流， 对于待测设备 DUT来说这种情况为接收分集，测试得到这种情况下的 TRS 值， 具体过程如图 2所示。

Claims

权利要求书
1、 一种多天线系统中总辐射灵敏度的测试方法， 其特征在于， 该方法 包括： 设置基站发送的数据流数目为 1 , 待测设备的接收天线数目为 n; 所述待测设备开启 n根接收天线， 并在预设位置接收基站下发的数据 流； 在每个测试点上， 当所述数据流满足测试条件时基站测量 E/ 和 E/ 之后根据每个测试点测量的 EISe和 EIS(p计算出所述数据流的总辐射灵敏度； 其中，所述 n > 2, E/ 为测试点 e角度的有效全向灵敏度； E/ 为测试点 角 度的有效全向灵敏度。
2、 根据权利要求 1所述的方法， 其特征在于， 所述方法还包括： 所述基站在每个测试点上测量所述待测设备的每根天线单独开启时的
EIS EISrp , 并根据每个测试点的 E/ 和 E/ 计算出所述数据流的总辐射灵 敏度。
3、 根据权利要求 1或 2所述的方法， 其特征在于，
所述测试条件具体为： 在至少 20000个比特的时间段内， 所述待测设 备接收的所述数据流的误码率保持在以下范围： 0.8% 误码率 1.2%。
4、 根据权利要求 1所述的方法， 其特征在于，
所述天线的传输模式具体包括： 单天线端口 0、 单天线端口 5、 发射分 集、 多用户多天线、 闭环单流预编码的传输模式中的至少一种。
5、 根据权利要求 2所述的方法， 其特征在于，
所述方法适用于单天线端口 0、单天线端口 5的传输模式中的至少一种。
6、 一种多天线系统中总辐射灵敏度的测试方法， 其特征在于， 该方法 包括： 设置基站发送的数据流数目为 m, 待测设备的接收天线数目为 n; 所述待测设备开启 n根接收天线， 并在预设位置接收基站下发的数据 流； 所述基站同时发送 m个数据流， 对于每个待测数据流均测试其总辐射 灵敏度； 其中，
测试所述每个待测数据流的总辐射灵敏度具体包括： 在每个测试点上， 当所述待测数据流满足测试条件时基站测量 E/ 和 E/ ；之后根据每个测试 点测量的 E/ 和 E/ 计算出所述待测数据流的总辐射灵敏度； 所述 m > 2, 且 n > m。
7、 根据权利要求 6所述的方法， 其特征在于， 所述方法还包括： 当所述 m个待测数据流的总和满足测试条件时， 基站测量每个测试点 处的 EIS^ EIS ,之后根据每个测试点的 E/ 和 E/ 计算出所述 m个待测数 据流的总辐射灵敏度。
8、 根据权利要求 6或 7所述的方法， 其特征在于，
所述测试条件具体为： 在至少 20000个比特的时间段内， 待测数据流 的误码率保持在以下范围： 0.8% 误码率 1.2%;
当待测数据流为 m时， 所述待测数据流的误码率为： 所述 m个待测数 据流总的误码率。
9、 根据权利要求 6或 7所述的方法， 其特征在于：
所述天线的传输模式具体包括： 开环空分复用、 闭环空分复用、 多用 户多天线、 单天线端口 5的传输模式中的至少一种。
10、 一种多天线系统中总辐射灵敏度的测试系统， 其特征在于， 该系 统包括基站和待测设备； 其中，
所述待测设备， 用于开启 n根接收天线接收基站下发的数据流； 所述基站， 用于向所述待测设备发送数据流， 以及在每个测试点上， 当所述数据流满足测试条件时测量 E/ 和 E/ , 并根据每个测试点测量的
EIS9和 ΕΚφ计算出所述数据流的总辐射灵敏度；
所述数据流的数目为 1 , n > 2。
11、 根据权利要求 10所述的系统， 其特征在于， 所述待测设备， 还用于单独开启每根接收天线时接收基站下发的数据 流;
所述基站， 还用于当待测设备单独开启每根接收天线时向所述待测设 备发送数据流， 以及在每个测试点上， 当所述数据流满足测试条件时测量 EISe和 ElS<p , 并根据每个测试点测量的 EISe和 ΕΚφ计算出所述数据流的总辐 射灵敏度。
12、 根据权利要求 10或 11所述的系统， 其特征在于，
所述测试条件具体为： 在至少 20000个比特的时间段内， 所述待测设 备接收的所述数据流的误码率保持在以下范围： 0.8% 误码率 1.2%。
13、 根据权利要求 10所述的系统， 其特征在于，
所述天线的传输模式具体包括： 单天线端口 0、 单天线端口 5、 发射分 集、 多用户多天线、 闭环单流预编码的传输模式中的至少一种。
14、 根据权利要求 11所述的系统， 其特征在于：
所述天线的传输模式具体包括： 单天线端口 0、单天线端口 5的传输模 式中的至少一种。
15、 一种多天线系统中总辐射灵敏度的测试系统， 其特征在于， 该系 统包括基站和待测设备； 其中，
所述待测设备， 用于开启 η根接收天线接收基站下发的数据流； 所述基站， 用于向所述待测设备同时发送 m个数据流， 以及在每个测 试点上， 当待测数据流满足测试条件时测量 E/ 和 E/ 并根据每个测试点 测量的 EISe和 ElS<p计算出所述待测数据流的总辐射灵敏度；
所述 m > 2, 且 n > m。
16、 根据权利要求 15所述的系统， 其特征在于，
所述基站， 还用于在每个测试点上， 当所述 m个数据流满足测试条件 时测量 E/ 和 E/ ,并根据每个测试点的 E/ 和 E/ 计算出所述 m个数据流 的总辐射灵敏度。
17、 根据权利要求 15或 16所述的系统， 其特征在于，
所述测试条件具体为： 在至少 20000个比特的时间段内， 待测数据流 的误码率保持在以下范围： 0.8% 误码率 1.2%;
当待测数据流为 m时， 所述待测数据流的误码率为： 所述 m个待测数 据流总的误码率。
18、 根据权利要求 15或 16所述的系统， 其特征在于：
所述天线的传输模式具体包括： 开环空分复用、 闭环空分复用、 多用 户多天线、 单天线端口 5的传输模式中的至少一种。
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