PATENT DOCUMENT

Publication Number: US-10880020-B2
Application Number: US-201716467102-A
Country: US
Kind Code: B2

Title: UE testing system for RF characteristics for the new radio standard

Abstract:
A testing system and method, for testing wireless communication devices, may include an anechoic far field chamber with a dual-axis positioning system for rotating the device under test. The testing system may further include a measuring antenna and a number of link antennas distributed throughout the testing system. A number of receive (RX) and transmit (TX) testing configurations for 5G NRs, using the testing system, are described in detail.

Claims:
What is claimed is: 
     
       1. A control system to control a far-field anechoic test chamber for a User Equipment (UE) device, the control system comprising:
 a computer-readable medium containing program instructions; and 
 one or more processors to execute the program instructions to:
 control the UE to operate in a mode in which the UE adaptively optimizes an uplink beam of the UE based on received downlink signals; 
 control a positioning device, located within the test chamber, to rotate the UE through a plurality of positions; and 
 receive measurements relating to a plurality of Figures of Merit (FoM) for uplink communications from the UE at a plurality of the positions controlled by the positioning device, the uplink communications being received through an uplink antenna, associated with the test chamber, that is co-located with respect to an active downlink antenna, wherein the FoMs are selected from the set including:
 maximum output power of the UE, 
 minimum output power of the UE, and 
 adjacent channel leakage power ratio (ACLR). 
 
 
 
     
     
       2. The control system of  claim 1 , wherein the one or more processors are further to execute the program instructions to:
 receive second measurements relating to a second set of FoMs, the second measurements being obtained through the uplink antenna and using one or more second downlink antennas, the second downlink antennas being spatially distributed in the test chamber, wherein the second set of FoMs relate to:
 unwanted emissions, and 
 ACLR. 
 
 
     
     
       3. The control system of  claim 2 , wherein the one or more processors are further to execute the program instructions to:
 control the UE to operate in a mode in which the UE initially adaptively optimizes the uplink beam of the UE based on the received downlink signals and then fixes the uplink beam for subsequent measurements; 
 receive third measurements relating to a third set of FoMs, the third measurements being obtained through the uplink antenna, using the co-located downlink antenna, and based on the fixed uplink beam, wherein the third set of FoMs relate to:
 unwanted emissions, and 
 total radiated power. 
 
 
     
     
       4. The control system of  claim 1 , wherein the positioning device rotates the UE over two-axis of freedom within the test chamber. 
     
     
       5. The control system of  claim 1 , wherein the UE includes a 5G New Radio (NR). 
     
     
       6. A control system to control a far-field anechoic test chamber for a User Equipment (UE) device, the control system comprising:
 a computer-readable medium containing program instructions; and 
 one or more processors to execute the program instructions to:
 control the UE to operate in a mode in which the UE adaptively optimizes an uplink beam of the UE based on received downlink signals; 
 control a positioning device, located within the test chamber, to rotate the UE through a plurality of positions; and 
 receive measurements relating to a plurality of Figures of Merit (FoM) for downlink communications to the UE at a plurality of the positions controlled by the positioning device, the downlink communications being transmitted through a downlink antenna, associated with the test chamber, that is co-located with respect to an uplink measurement antenna, wherein the FoMs are selected from the set including: 
 Reference Sensitivity (REFSENS), 
 maximum input level, and 
 Adjacent Channel Selectivity (ACS). 
 
 
     
     
       7. The control system of  claim 6 , wherein the one or more processors are further to execute the program instructions to:
 receive second measurements relating to a second set of FoMs, the second measurements being obtained by additionally using one or more second downlink antennas, as blocker antennas, to transmit interference, wherein the second set of FoMs relate to:
 ACS, and 
 blocking related measurements. 
 
 
     
     
       8. The control system of  claim 7 , wherein the one or more processors are further to execute the program instructions to:
 control the UE to operate in a mode in which the UE initially adaptively optimizes the uplink beam of the UE based on the received downlink signals and then fixes the uplink beam for subsequent measurements; 
 receive third measurements relating to a third set of FoMs, wherein the third set of FoMs relate to total radiated sensitivity. 
 
     
     
       9. The control system of  claim 6 , wherein the positioning device rotates the UE over two-axis of freedom within the test chamber. 
     
     
       10. The control system of  claim 6 , wherein the UE includes a 5G New Radio (NR). 
     
     
       11. A testing system for a wireless communication device comprising:
 an anechoic far-field chamber; 
 a measurement antenna positioned within the chamber; 
 a first link antenna that is co-located, within the chamber, with the measurement antenna; 
 a plurality of second link antennas that are spatially distributed within the chamber; 
 a positioning system configured to mount the communication device and rotate the communication device through at least two-axis of freedom; and 
 a control device to control operation of the measurement antenna, the first link antenna, the plurality of second link antennas, and the positioning system, to:
 receive measurements relating to a second plurality of FoMs for uplink communications from the wireless communication device, wherein the second plurality of FoMs are selected from the set including:
 maximum output power of the UE, 
 minimum output power of the UE, 
 adjacent channel leakage power ratio (ACLR), 
 unwanted emissions, and 
 total radiated power. 
 
 
 
     
     
       12. The testing system of  claim 11 , wherein the control device is further to control operation of the measurement antenna, the first link antenna, the plurality of second link antennas, and the positioning system, to:
 receive measurements relating to a plurality of Figures of Merit (FoM) for downlink communications to the wireless communication device, wherein the FoMs are selected from the set including: 
 Reference Sensitivity (REFSENS), 
 maximum input level, 
 Adjacent Channel Selectivity (ACS), and 
 total radiated sensitivity. 
 
     
     
       13. The testing system of  claim 12 , wherein during at least some of the FoMs, at least one of the plurality of second link antennas is controlled, as a blocking antenna, to emit interference. 
     
     
       14. The testing system of  claim 13 , wherein the plurality of second link antennas are individually controllable, by the control device, as either a blocking antenna or a downlink link antenna. 
     
     
       15. The control system of  claim 11 , wherein the wireless communication device includes a 5G New Radio (NR). 
     
     
       16. The control system of  claim 11 , wherein the control device is connected to the communication device via a wired testing interface. 
     
     
       17. The control system of  claim 11 , wherein the communication device is mounted in the positioning system at or near the center of the test chamber. 
     
     
       18. The control system of  claim 11 , wherein the shape of the test chamber is generally spherical. 
     
     
       19. The control system of  claim 11 , wherein the control device is further to:
 control the communication device to operate in a mode in which the communication device initially adaptively optimizes beamforming parameters of an uplink beam of the communication device based on received downlink signals. 
 
     
     
       20. The control system of  claim 19 , wherein the control device is further to:
 adaptively optimize the uplink beam based on initial downlink communications, and then fix the beamforming parameters for subsequent communications.

Description:
RELATED APPLICATIONS 
     This application is a National Phase entry application of International Patent Application No. PCT/US2017/069120 filed Dec. 29, 2017, which claims priority to U.S. Provisional Patent Application No. 62/443,420, filed on Jan. 6, 2017, entitled “UE ESTING SYSTEM FOR RF CHARACTERISTICS FOR THE NEW RADIO STANDARD” in the name of Anatoliy Ioffe and is hereby incorporated by reference in its entirety. 
    
    
     BACKGROUND 
     An emerging wireless standard for wireless cellular networks is known as 5G New Radio (NR). The specifications for 5G NR are standardized as part of the Third Generation Partnership Project (3GPP) specifications with a goal of making wireless broadband performance comparable to that of wireline network connectivity. In 5G NR, a new Radio Access Technology (RAT), beyond the Long Term Evolution (LTE) standard, is used. The 5G RAT may be operable over a wide range of frequency bands, including from less than 6 GHz, to millimeter wave (mmWave) bands, to as high as 100 GHz. 
     With respect to the frequency coverage of a 5G RAT device, the 5G RAT devices that operate at high-frequencies (e.g., devices operating above 6 GHz) may include highly integrated architectures that may feature innovative front-end solutions, multi-element antenna arrays, and passive and active feeding networks. These architectures may not allow for the use of the same testing techniques that are currently used to verify Radio Frequency (RF) requirements. 
     For example, a potential highly integrated 5G device may not be able to physically expose a front-end cable connector to the test equipment: the interface between the front-end and the antenna may be an antenna array feeding network, the interface may be so tightly integrated so as to preclude the possibility of exposing a test connector, etc. However, testing of such devices, such as testing of the devices with respect to various performance metrics, is still desirable. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Embodiments described herein will be readily understood by the following detailed description in conjunction with the accompanying drawings. To facilitate this description, like reference numerals may designate like structural elements. Embodiments are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings. 
         FIG. 1  is a diagram conceptually illustrating an example architecture relating to 5G NR functionality; 
         FIG. 2  is a diagram illustrating a testing system for testing the transmitting of data for a Device Under Test (DUT); 
         FIGS. 3-5  are diagrams illustrating example testing configurations for the system of  FIG. 2 ; 
         FIG. 6  is a flow chart illustrating an example process relating to the testing of User Equipments (UEs); 
         FIG. 7  is a diagram illustrating a testing system for testing the receiving of data for a DUT; 
         FIGS. 8-10  are diagrams illustrating example testing configurations for the system of  FIG. 6 ; 
         FIG. 11  illustrates example components of a device in accordance with some embodiments; 
         FIG. 12  illustrates example interfaces of baseband circuitry in accordance with some embodiments; and 
         FIG. 13  is a block diagram illustrating components, according to some example embodiments, able to read instructions from a machine-readable or computer-readable medium (e.g., a non-transitory machine-readable storage medium) and perform any one or more of the methodologies discussed herein. 
     
    
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS 
     Techniques described herein may relate to a testing framework for the integration 5G RAT devices. The testing framework may be used to test the 5G RAT devices without requiring a cable connector to the devices and may be used for over-the-air testing of the performance of the 5G RAT devices at various frequency bands, testing of the devices with respect to radio resource management (RRM), and testing relating to demodulation performance requirements. 
     A testing system and method, for testing wireless communication devices, is described. The testing system may include an anechoic far field chamber with a dual-axis positioning system for rotating the device under test. The testing system may further include a measuring antenna and a number of link antennas distributed throughout the testing system. A number of receive (RX) and transmit (TX) testing configurations for 5G NRs, using the testing system, are further described. 
       FIG. 1  is a diagram conceptually illustrating an example architecture relating to 5G NR functionality. The architecture of  FIG. 1  may particularly be useful for a 5G NR transmitter that transmit at frequencies greater than 6 Ghz. The components shown in  FIG. 1  may be included in User Equipment (UE)  100 . UE  100  may be, for example, a cellular phone (e.g., a smartphone), a Machine-to-Machine (M2M) device, an Internet of Things (IoT) device, a Narrowband IoT (NB-IoT) device, a wearable device, or any other type of communication device designed to include a 5G NR. Because the techniques described herein relate to a testing framework for UE  100 , UE  100  may alternatively be referred to herein as the Device Under Test (DUT). 
     As shown in  FIG. 1 , the 5G NR functionality of UE  100  may include baseband processing circuitry  110 , intermediate frequency processing circuitry  120 , radio frequency processing circuitry  130 , antenna array matching network  140 , and antenna array  150 . Baseband processing circuitry  110  may include a device (e.g., a semiconductor chip) that manages radio functions of UE  100 . Baseband processing circuitry  110  is described in more detail below with reference to  FIGS. 11 and 12 . Baseband processing circuitry  110  may include, for example, a real-time operating system (RTOS) that may control timing-dependent radio functions such as signal modulation, encoding, and frequency shifting. 
     Intermediate frequency processing circuit  120  may perform processing at frequencies between the baseband signal and the final carrier wave frequency. Intermediate frequency processing may include, for example, amplification or other processes. In some implementations, intermediate frequency processing circuit  120  may be omitted or the functionality of intermediate frequency processing circuit  120  may be integrated within baseband processing circuitry  110  or radio frequency processing circuitry  130 . 
     Radio frequency processing circuitry  130  may include the components of UE  100  that process the incoming/outgoing radio frequency signals. Radio frequency processing circuitry  130  may include, for example, RF filters, RD amplifiers, oscillators, mixers, or other radio frequency components. 
     Antenna array matching network  140  may include circuitry to operate as an antenna tuner to, for example, improve power transfer between antenna array  150  and radio frequency processing circuitry  130  by matching the impedance. Antenna array  150  may include two or more antennas that can be controlled to operate as a single antenna. The individual antenna elements may be coupled to radio frequency processing circuitry  130  and antenna array matching network  140  by a number of feedlines. The antenna array matching network may also include amplitude and phase control of each feedline, thereby implementing beam forming of the transmitted and received signals. 
       FIG. 2  is a diagram illustrating a testing system  200  for a DUT (e.g., UE  100 ). System  200  may test the DUT as the transmitter. As shown, system  200  includes control system  210  and anechoic chamber  220 . Control system  210  may include a computing device, such as a computer, for running test programs/scripts. Control system  210  may also include measurement devices to measure signals that are received from anechoic chamber  220 . The measurement devices may include, for example, devices to measure signal strength, signal quality, signal timing information, etc. Control system may also include devices to control antennas and/or transmitters associated with anechoic chamber  220 . 
     Control system  210  may include a testing interface to DUT  245 . For example, DUT  245  may include an interface through which a testing cable may be connected. Alternatively or additionally, control system  210  may transmit control commands to DUT  245  via a wireless test interface. Through the testing interface, control system  210  may control DUT  245  to, for example, operate in a mode in which the UE adaptively optimizes its uplink and/or downlink beam based on the received downlink signals (i.e., the UE dynamically changes the beam forming parameters of the antenna). Alternatively, control system  210  may control DUT  245  to adaptively optimize its beam during an initialization period and then fix its beam for subsequent testing (i.e., the beam forming parameters are held constant). 
     Anechoic chamber  220  may include a far-field chamber that is internally coated with an anechoic material (relative to radio frequency waves). Although illustrated as a rectangular chamber in  FIG. 2 , the chamber can be spherical or other shapes. Anechoic chamber  220  may include measuring antenna  225  (i.e., a receiving antenna), and one or more link antennas (i.e., transmitting antennas)  230  and  235 . A positioning system  240  may be placed in the center of anechoic chamber  220 . When testing a DUT, such as a DUT  245 , the DUT may be placed in or on positioning system  240 . 
     Measuring antenna  225  may receive signals from DUT  245  and transmit the signals to control system  210  for sensing and recording. Link antennas  230  and  235 , under the control of control system  210 , may transmit signals to DUT  245 . Link antenna  230  may particularly be positioning centrally with respect to measuring antenna  225  (i.e., it is collocated with respect to measuring antenna  225 ). In some implementations, measurement antenna  225  and link antenna  230  may be implemented as the same antenna or antenna array. Link antennas  235  may be positioned at various other locations in anechoic chamber  220 . Although two link antennas  235  are illustrated in  FIG. 2 , any number of link antennas may potentially be used. 
     Positioning system  240  may be used to secure DUT  245  while moving DUT  245  within anechoic chamber  220 . In one implementation, positioning system  240  may be a dual-axis positioning system that can rotate DUT  245 , with two degrees of freedom, while keeping DUT  245  in the center of anechoic chamber  220 . In another possible implementation, positioning system  240  may be implemented with, for example, one degree of freedom. 
     The test system of  FIG. 2  may enable a number of test/measurement configurations relating to testing of the transmissions characteristics of DUT  245 . In particular, each of three test/measurement configurations, relating to the system of  FIG. 2 , will next be described with reference to  FIGS. 3-5 . 
       FIG. 3  is a diagram illustrating a first example configuration of test system  200  for testing UE transmissions. In this embodiment, uplink signals  310  may be transmitted from DUT  245  to measuring antenna  225 . The measured signal, received from DUT  245 , may be processed and recorded by control system  210 . Downlink signals  320  may be transmitted, to DUT  245 , via the co-located link antenna  230 . Results describing the downlink signals, as measured by DUT  245 , may be transmitted back to control system  210  for storage and analysis. The transmission of uplink signals  310 , formed over a number of DUT  245  positions (i.e., control system  210  may control positioning system  240  to rotate to a number of predetermined positions, corresponding to different beam angles for DUT  245  with respect to measuring antenna  225  and link antenna  230 ) may be controlled by control system  210 . 
     With the system of  FIG. 3 , a number of testing metrics, which may be referred to as figures of merit (FoM) may be measured across a number of DUT  245  positions, which may correspond to a number of beam angles with respect to DUT  245 . In one implementation, the FoMs may include: maximum output power of DUT  245 , minimum output power of DUT  245 , ON/OFF time mask, power control, configured maximum output power (PCMAX), frequency error, Error Vector Magnitude (EVM), and/or Adjacent Channel Leakage power Ratio (ACLR). The ON/OFF time mask FoM may relate to the measurement of UE transmit power during a period, of a particular length, in which the radio of the UE is turned on. The PCMAX FoM may refer to the maximum amount of output power measured for DUT  245 . The EVM FoM may refer to a measure of difference between a reference waveform that is transmitted by DUT  245  and the measured waveform (as received an measuring antenna  225 ). The ACLR FoM may refer to measurements of spectrum leakage to adjacent bands. The FoMs measured with the system of  FIG. 3  are further defined in the Third Generation Partnership Project Specifications. 
     For each required FoM that is to be measured, the set of DUT beam angles and DUT positions may be predefined. For example, Maximum Output Power (MOP) may be evaluated over a larger set of beam angles and positions than other requirements. Some requirements may be evaluated at a single beam angle across a small number of DUT positions. 
     In some implementations, control system  210  may control DUT  245  to dynamically adapt its beam to the link antenna. 
       FIG. 4  is a diagram illustrating a second example configuration of test system  200  for testing UE transmissions. In this embodiment, uplink signals  410  may be transmitted from DUT  245  to measuring antenna  225 . Downlink signals  420  may be transmitted via one of link antennas  235 . Control system  210  may control the transmitting of downlink signals  420 , from a number of different link antennas  235 , to measure the desired FoMs across a number of DUT beam angles and DUT positions. In some implementations, control system  210  may instruct DUT  245  to dynamically adapt its beam to the activated downlink link antenna. Thus, in this configuration, the DUT transmitted beam angle and the angle of measurement (made by measurement antenna  225 ) are not the same. 
     With the system of  FIG. 4 , the measured FoMs may include the FoMs relating to ACLR and unwanted emissions. A set of DUT beam angles and positions may be defined for each requirement test. Control system may thus control measuring antenna  225 , various ones of link antennas  235 , and positioning system  240  to satisfy each requirement test. 
       FIG. 5  is a diagram illustrating a third example configuration of test system  200  for testing UE transmissions. The configuration illustrated in  FIG. 5  may be similar to the configuration illustrated in  FIG. 3 . As previously discussed, in the test configuration shown in  FIG. 3 , control system  21  controlled DUT  245  to dynamically adapt its transmission beam based on signals received from link antenna  230 . In the configuration of  FIG. 5 , however, control system  210  may control DUT  245  to optimize its beam based on the initial beam angle and position of DUT  245 , and to fix the initially optimized beam for the duration of the test (during which DUT  245  transmits in autonomous mode). 
     More particularly, as shown in  FIG. 5 , uplink signals  510  may be transmitted from DUT  245  to measuring antenna  225 . The measured signal, received from DUT  245 , may be processed and recorded by control system  210 . Downlink signals  520  may be transmitted via the co-located link antenna  230 . Results describing the downlink signals, as measured by DUT  245 , may be transmitted back to control system  210  for storage and analysis. The transmission of the uplink and downlink signals  510  and  520 , respectively, may be performed over a number of DUT  245  positions (i.e., control system  210  may control positioning system  240  to rotate to a number of predetermined positions, corresponding to different beam angles for DUT  245  with respect to measuring antenna  225  and link antenna  230 ) that may be controlled by control system  210 . Transmissions by DUT  245 , during a test, may be based on a beam angle that is initially optimized by an initial transmission via link antenna  230 , wherein the beam angle is then not changed (i.e., not adaptively modified) as DUT  245  is rotated during a test. With the testing configuration of  FIG. 5 , the DUT transmitted beam angle (which is fixed) and the angle of measurement may not be the same. When in autonomous mode, DUT  245  and test equipment may not be able to maintain a bidirectional link over the Radio Access Technology (RAT) under test. 
     The testing configuration shown in  FIG. 5  may be particularly suited to measuring FoMs relating to unwanted emissions and total radiated power of DUT  245 . For a particular test, the set of beam angles and positions, for DUT  245 , may be defined for each test (e.g., each standards requirement). For example, spurious emissions may be evaluated over a larger set of beam angles and positions than other tests. 
       FIG. 6  is a flow chart illustrating an example process  600  relating to the testing of UEs (i.e., DUTs) using the testing configurations illustrated in  FIGS. 3-5 . Process  600  may be performed by, for example, control system  210 . 
     Process  600  may include configuring the DUT for the test (block  610 ). For example, for the test configuration corresponding to  FIG. 5 , control system  210  may control DLT  245  so that the beamforming for the transmission beam is optimized based on an initial transmission to DUT  245 , but then not subsequently changed as the DUT position is subsequently varied. As another example, for the test configuration corresponding to  FIG. 3 , control system  210  may control DUT  245  to dynamically adapt its transmission beam based on the current incoming transmission from link antenna  235 . For the test configuration corresponding to  FIG. 5 , however, control system  210  may control DUT  245  to refrain from dynamically adapting its transmission beam based on the current incoming transmission from link antenna  235 . 
     Process  600  may further include controlling the downlink transmission to the DUT using a selected link antenna(s)  230  and/or  235 . For example, for the test configurations corresponding to  FIGS. 3 and 5 , only link antenna  230  may be used for the downlink. For the test configurations corresponding to  FIG. 4 , at various times during the test, different ones of link antennas  230  and  235  may be used. Control system  210  may, at the appropriate time for the test, control selection of the particular link antenna to use. In some testing configurations, multiple link antennas may be simultaneously used. 
     Process  600  may additionally include controlling positioning system  240  to vary the position (e.g., rotate over two axes) of DUT  245  (block  630 ). Different tests may be configured to be performed at a series of different positions for DUT  245 . The rotation of DUT  245  may, fix example, be preconfigured to be at certain positions/angles over the course of the test. Control system  210  may control positioning system  240  to appropriately rotate DUT  245  to the desired positions. 
     Process  600  may additionally include storing/monitoring the uplink signal received, via the measuring antenna, from the DUT (block  640 ). As previously mentioned, various sensors, associated with control system  210 , may be used to obtain power and/or signal quality metrics relating to the received uplink signal. Additionally, DUT  245  may transmit information to control system  210  (e.g., either wirelessly or through a wired interface), such as reports including power metrics, quality metrics, or other metrics relating to the signals received, by the DUT, from the link antenna(s). 
     Process  600  may further include generating and outputting, such as via a graphical interface, a report relating to FoMs that are being tested for each particular test (block  650 ). The report may be used, for example, to determine whether a particular UE or UE design meets the testing requirements of the 3GPP standards. 
       FIG. 7  is a diagram illustrating a testing system  700  for a DUT (e.g., UE  100 ). System  700  may be similar to system  200  ( FIG. 2 ). System  700 , however, may be used to test receiver characteristics of DUT  245 . As shown, control system  210  may control the system to measure downlink transmissions (i.e., to receive downlink reporting information from DUT  245 ). In system  700 , in certain tests, some of link antennas  230  and/or  235  may be controlled, by control system  210 , to act as blocker antennas instead of link antennas. A blocker antenna may be controlled to emit radio signals that are to act as interference or noise to DUT  245 . For example, link antenna  230  may be controlled as a downlink antenna and antennas  235  controlled to emit radio signals used to test the performance of DUT  245  in the presence of interference. 
       FIG. 8  is a diagram illustrating a first example configuration of test system  700  for testing UE reception. In this embodiment, uplink signals  810  may be transmitted from DUT  245  to measuring antenna  225 . Downlink signals  820  may be transmitted via the co-located link antenna  230 . Results describing the downlink signals, as measured by DUT  245 , may be transmitted back to control system  210  for storage and analysis. The transmission of the downlink signal  810 , formed over a number of DUT  245  positions (i.e., control system  210  may control positioning system  240  to rotate to a number of predetermined positions, corresponding to different beam angles for DUT  245  with respect to measuring antenna  225  and link antenna  230 ) may be controlled by control system  210 . 
     With the system of  FIG. 8 , a number FoM testing metrics may be determined across a number of DUT  245  positions, which may correspond to a number of beam angles with respect to DUT  245 . In one implementation, the FoMs may include: Reference Sensitivity (REFSENS), maximum input level, and Adjacent Channel Selectivity (ACS). REFSENS may relate to over the air sensitivity levels of the DUT. The maximum input level may refer to the maximum power level received at the DUT. ACS is a measure of the DUT&#39;s ability to suppress out-of-band interfering signals. 
     For each required FoM that is to be measured, the set of DUT beam angles and DUT positions may be predefined. For example, REFSENS may be evaluated over a larger set of beam angles and positions than other requirements. Some requirements may be evaluated at a single beam angle across a small number of DUT positions. 
     In some implementations, control system  210  may control DUT  245  to dynamically adapt its beam to the link antenna. 
       FIG. 9  is a diagram illustrating a second example configuration of test system  700  for testing UE reception. In this embodiment, uplink signals  910  may be transmitted from DUT  245  to measuring antenna  225  and downlink signals  920  may be transmitted via link antenna  230  to DUT  245 . Additionally, one of link antennas  235  may be controlled as a blocker antenna. Positioning system  240  may be controlled to rotate DUT  240  and thus to measure the desired FoMs across a number of DUT beam angles and positions. 
     With the system of  FIG. 9 , the measured FoMs may include ACS and blocking. Blocking characteristics of a DUT may generally relate to the ability of a receiver to appropriately demodulate signals in the presence of a range of interference and/or high-power signals. Control system may thus control measuring antenna  225 , various ones of link antennas  235 , and positioning system  240  to satisfy each requirement test. 
     The set of DUT beam angles and DUT positions may be defined for each FoM requirement. For example, spurious emissions may be evaluated over a larger set of beam angles and positions than other requirements. Control system  210  may control DUT  245  to dynamically adapt its beam to the activated link antenna dynamically. In this configuration, the DUT received beam angle and the angle of measurement may not be the same. 
       FIG. 10  is a diagram illustrating a third example configuration of test system  700  for testing UE receptions. The configuration illustrated in  FIG. 10  may be similar to the configuration illustrated in  FIG. 8  in which both the downlink measured signal and the uplink signal are communicated using measurement antenna  225  and co-located antenna  230  across a number of DUT angle beams and over a number of DUT positions. However, in the configuration of  FIG. 10 , control system  210  may control DUT  245  to optimize its beam based on the initial beam angle and position of DUT  245 , and to fix the initially optimized beam for the duration of the test (during which DUT  245  receives in autonomous mode). In this configuration the DUT received beam angle (which is fixed) and the angle of measurement are not the same in this test. When the DUT is in autonomous mode, the DUT and control system  210  may not be able to maintain a bidirectional link over the RAT under test. 
     With the system of  FIG. 10 , the FoM of total radiated sensitivity may be measured. A set of DUT beam angles and DUT positions may be defined for the FoM. 
     The operation of the test configuration discussed with respect to  FIGS. 8-10  may be similar to that operations discussed with respect to process  600  ( FIG. 6 ), except that the values relating to the downlink signals, as received and measured by DUT  245 , may be used to generate and output the reports relating to the tested FoMs. 
     As used herein, the term “circuitry,” “processing circuitry,” or “logic” may refer to, be part of, or include an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group), and/or memory (shared, dedicated, or group) that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality. In some embodiments, the circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules. In some embodiments, circuitry may include logic, at least partially operable in hardware. 
       FIG. 11  illustrates example components of a device  1100  in accordance with some embodiments. In some embodiments, the device  1100  may include application circuitry  1102 , baseband circuitry  1104 , Radio Frequency (RF) circuitry  1106 , from-end module (FEM) circuitry  1108 , one or more antennas  1110 , and power management circuitry (PMC)  1112  coupled together at least as shown. The components of the illustrated device  1100  may be included in a UE or a RAN node. In some embodiments, the device  1100  may include less elements (e.g., a RAN node may not utilize application circuitry  1102 , and instead include a processor/controller to process IP data received from an EPC). In some embodiments, the device  1100  may include additional elements such as, for example, memory/storage, display, camera, sensor, or input/output (I/O) interface. In other embodiments, the components described below may be included in more than one device (e.g., said circuitries may be separately included in more than one device for Cloud-RAN (C-RAN) implementations). 
     The application circuitry  1102  may include one or more application processors. For example, the application circuitry  1102  may include circuitry such as, but not limited to, one or more single-core or multi-core processors. The processor(s) may include any combination of general-purpose processors and dedicated processors (e.g., graphics processors, application processors, etc.). The processors may be coupled with or may include memory/storage and may be configured to execute instructions stored in the memory/storage to enable various applications or operating systems to run on the device  1100 . In some embodiments, processors of application circuitry  1102  may process IP data packets received from an EPC. 
     The baseband circuitry  1104  may include circuitry such as, but not limited to, one or more single-core or multi-core processors. The baseband circuitry  1104  may include one or more baseband processors or control logic to process baseband signals received from a receive signal path of the RF circuitry  1106  and to generate baseband signals for a transmit signal path of the RF circuitry  1106 . Baseband processing circuity  1104  may interface with the application circuitry  1102  for generation and processing of the baseband signals and for controlling operations of the RF circuitry  1106 . For example, in some embodiments, the baseband circuitry  1104  may include a third generation (3G) baseband processor  1104 A, a fourth generation (4G) baseband processor  1104 B, a fifth generation (5G) baseband processor  1104 C, or other baseband processor(s)  1104 D for other existing generations, generations in development or to be developed in the future (e.g., second generation (2G), sixth generation (6G), etc.). The baseband circuitry  1104  (e.g., one or more of baseband processors  1104 A-D) may handle various radio control functions that enable communication with one or more radio networks via the RF circuitry  1106 . In other embodiments, some or all of the functionality of baseband processors  1104 A-D may be included in modules stored in the memory  11046  and executed via a Central Processing Unit (CPU)  1104 E. The radio control functions may include, but are not limited to, signal modulation/demodulation, encoding/decoding, radio frequency shifting, etc. In some embodiments, modulation/demodulation circuitry of the baseband circuitry  1104  may include Fast-Fourier Transform (FFT), precoding, or constellation mapping/demapping functionality. In some embodiments, encoding/decoding circuitry of the baseband circuitry  1104  may include convolution, tail-biting convolution, turbo. Viterbi, or Low-Density Parity Check (LDPC) encoder/decoder functionality. Embodiments of modulation/demodulation and encoder/decoder functionality are not limited to these examples and may include other suitable functionality in other embodiments. 
     In some embodiments, the baseband circuitry  1104  may include one or more audio digital signal processor(s) (DSP)  1104 F. The audio DSP(s)  1104 F may be include elements for compression/decompression and echo cancellation and may include other suitable processing elements in other embodiments. Components of the baseband circuitry may be suitably combined in a single chip, a single chipset, or disposed on a same circuit board in some embodiments. In some embodiments, some or all of the constituent components of the baseband circuitry  1104  and the application circuitry  1102  may be implemented together such as, for example, on a system on a chip (SOC). 
     In some embodiments, the baseband circuitry  1104  may provide for communication compatible with one or more radio technologies. For example, in some embodiments, the baseband circuitry  1104  may support communication with an evolved universal terrestrial radio access network (EUTRAN) or other wireless metropolitan area networks (WMAN), a wireless local area network (WLAN), a wireless personal area network (WPAN). Embodiments in which the baseband circuitry  1104  is configured to support radio communications of more than one wireless protocol may be referred to as multi-mode baseband circuitry. 
     RF circuitry  1106  may enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium. In various embodiments, the RF circuitry  1106  may include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network. RF circuitry  1106  may include a receive signal path which may include circuitry to down-convert RF signals received from the FEM circuitry  1108  and provide baseband signals to the baseband circuitry  1104 . RF circuitry  1106  may also include a transmit signal path which may include circuitry to up-convert baseband signals provided by the baseband circuitry  1104  and provide RF output signals to the FEM circuitry  1108  for transmission. 
     In some embodiments, the receive signal path of the RF circuitry  1106  may include mixer circuitry  1106   a , amplifier circuitry  1106   b  and filter circuitry  1106   c . In some embodiments, the transmit signal path of the RF circuitry  1106  may include filter circuitry  1106   c  and mixer circuitry  1106   a . RF circuitry  1106  may also include synthesizer circuitry  1106   d  for synthesizing a frequency for use by the mixer circuitry  1106   a  of the receive signal path and the transmit signal path. In some embodiments, the mixer circuitry  1106   a  of the receive signal path may be configured to down-convert RF signals received from the FEM circuitry  1108  based on the synthesized frequency provided by synthesizer circuitry  1106   d . The amplifier circuitry  1106   b  may be configured to amplify the down-converted signals and the filter circuitry  1106   c  may be a low-pass filter (LPF) or band-pass filter (BPF) configured to remove unwanted signals from the down-converted signals to generate output baseband signals. Output baseband signals may be provided to the baseband circuitry  1104  for further processing. In some embodiments, the output baseband signals may be zero-frequency baseband signals, although this is not a requirement. In some embodiments, mixer circuitry  1106   a  of the receive signal path may comprise passive mixers, although the scope of the embodiments is not limited in this respect. 
     In some embodiments, the mixer circuitry  1106   a  of the transmit signal path may be configured to up-convert input baseband signals based on the synthesized frequency provided by the synthesizer circuitry  1106   d  to generate RF output signals for the FEM circuitry  1108 . The baseband signals may be provided by the baseband circuitry  1104  and may be filtered by filter circuitry  1106   c.    
     In some embodiments, the mixer circuitry  1106   a  of the receive signal path and the mixer circuitry  1106   a  of the transmit signal path may include two or more mixers and may be arranged for quadrature downconversion and upconversion, respectively. In some embodiments, the mixer circuitry  1106   a  of the receive signal path and the mixer circuitry  1106   a  of the transmit signal path may include two or more mixers and may be arranged for image rejection (e.g., Hartley image rejection). In some embodiments, the mixer circuitry  1106   a  of the receive signal path and the mixer circuitry  1106   a  may be arranged for direct downconversion and direct upconversion, respectively. In some embodiments, the mixer circuitry  1106   a  of the receive signal path and the mixer circuitry  1106   a  of the transmit signal path may be configured for super-heterodyne operation. 
     In some embodiments, the output baseband signals and the input baseband signals may be analog baseband signals, although the scope of the embodiments is not limited in this respect. In some alternate embodiments, the output baseband signals and the input baseband signals may be digital baseband signals. In these alternate embodiments, the RE circuitry  1106  may include analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuitry and the baseband circuitry  1104  may include a digital baseband interface to communicate with the RE circuitry  1106 . 
     In some dual-mode embodiments, a separate radio IC circuitry may be provided for processing signals for each spectrum, although the scope of the embodiments is not limited in this respect. 
     In some embodiments, the synthesizer circuitry  1106   d  may be a fractional-N synthesizer or a fractional N/N+1 synthesizer, although the scope of the embodiments is not limited in this respect as other types of frequency synthesizers may be suitable. For example, synthesizer circuitry  1106   d  may be a delta-sigma synthesizer, a frequency multiplier, or a synthesizer comprising a phase-locked loop with a frequency divider. 
     The synthesizer circuitry  1106   d  may be configured to synthesize an output frequency for use by the mixer circuitry  1106   a  of the RE circuitry  1106  based on a frequency input and a divider control input. In some embodiments, the synthesizer circuitry  1106   d  may be a fractional N/N+1 synthesizer. 
     In some embodiments, frequency input may be provided by a voltage controlled oscillator (VCO), although that is not a requirement. Divider control input may be provided by either the baseband circuitry  1104  or the applications processor  1102  depending on the desired output frequency. In some embodiments, a divider control input (e.g., N) may be determined from a look-up table based on a channel indicated by the applications processor  1102 . Synthesizer circuitry  1106   d  of the RF circuitry  1106  may include a divider, a delay-locked loop (DLL), a multiplexer and a phase accumulator. In some embodiments, the divider may be a dual modulus divider (DMD) and the phase accumulator may be a digital phase accumulator (DPA). In some embodiments, the DMD may be configured to divide the input signal by either N or N+1 (e.g., based on a carry out) to provide a fractional division ratio. In some example embodiments, the DLL may include a set of cascaded, tunable, delay elements, a phase detector, a charge pump and a D-type flip-flop. In these embodiments, the delay elements may be configured to break a VCO period up into Nd equal packets of phase, where Nd is the number of delay elements in the delay line. In this way, the DLL provides negative feedback to help ensure that the total delay through the delay line is one VCO cycle. 
     In some embodiments, synthesizer circuitry  1106   d  may be configured to generate a carrier frequency as the output frequency, while in other embodiments, the output frequency may be a multiple of the carrier frequency (e.g., twice the carrier frequency, four times the carrier frequency) and used in conjunction with quadrature generator and divider circuitry to generate multiple signals at the carrier frequency with multiple different phases with respect to each other. In some embodiments, the output frequency may be a LO frequency (fLO). In some embodiments, the RF circuitry  1106  may include an IQ/polar converter. 
     FEM circuitry  1108  may include a receive signal path which may include circuitry configured to operate on RF signals received from one or more antennas  1110 , amplify the received signals and provide the amplified versions of the received signals to the RF circuitry  1106  for further processing. FEM circuitry  1108  may also include a transmit signal path which may include circuitry configured to amplify signals for transmission provided by the RF circuitry  1106  for transmission by one or more of the one or more antennas  1110 . In various embodiments, the amplification through the transmit or receive signal paths may be done solely in the RF circuitry  1106 , solely in the FEM  1108 , or in both the RF circuitry  1106  and the FEM  1108 . 
     In some embodiments, the FEM circuitry  1108  may include a TX/RX switch to switch between transmit mode and receive mode operation. The FEM circuitry may include a receive signal path and a transmit signal path. The receive signal path of the FEM circuitry may include an LNA to amplify received RF signals and provide the amplified received RF signals as an output (e.g., to the RF circuitry  1106 ). The transmit signal path of the FEM circuitry  1108  may include a power amplifier (PA) to amplify input RF signals (e.g., provided by RF circuitry  1106 ), and one or more filters to generate RF signals for subsequent transmission (e.g., by one or more of the one or more antennas  1110 ). 
     In some embodiments, the PMC  1112  may manage power provided to the baseband circuitry  1104 . In particular, the PMC  1112  may control power-source selection, voltage scaling, battery charging, or DC-to-DC conversion. The PMC  1112  may often be included when the device  1100  is capable of being powered by a battery, for example, when the device is included in a UE. The PMC  1112  may increase the power conversion efficiency while providing desirable implementation size and heat dissipation characteristics. 
     While  FIG. 11  shows the PMC  1112  coupled only with the baseband circuitry  1104 . However, in other embodiments, the PMC  1112  may be additionally or alternatively coupled with, and perform similar power management operations for, other components such as, but not limited to, application circuitry  1102 , RF circuitry  1106 , or FEM  1108 . 
     In some embodiments, the PMC  1112  may control, or otherwise be part of, various power saving mechanisms of the device  1100 . For example, if the device  1100  is in an RRC_Connected state, where it is still connected to the RAN node as it expects to receive traffic shortly, then it may enter a state known as Discontinuous Reception Mode (DRX) after a period of inactivity. During this state, the device  1100  may power down for brief intervals of time and thus save power. 
     If there is no data traffic activity for an extended period of time, then the device  1100  may transition off to an RRC_Idle state, where it disconnects from the network and does not perform operations such as channel quality feedback, handover, etc. The device  1100  goes into a very low power state and it performs paging where again it periodically wakes up to listen to the network and then powers down again. The device  1100  may not receive data in this state, in order to receive data, it must transition back to RRC_Connected state. 
     An additional power saving mode may allow a device to be unavailable to the network for periods longer than a paging interval (ranging from seconds to a few hours). During this time, the device is totally unreachable to the network and may power down completely. Any data sent during this time incurs a large delay and it is assumed the delay is acceptable. 
     Processors of the application circuitry  1102  and processors of the baseband circuitry  1104  may be used to execute elements of one or more instances of a protocol stack. For example, processors of the baseband circuitry  1104 , alone or in combination, may be used execute Layer 3, Layer 2, or Layer 1 functionality, while processors of the application circuitry  1104  may utilize data (e.g., packet data) received from these layers and further execute Layer 4 functionality (e.g., transmission communication protocol (TCP) and user datagram protocol (UDP) layers). As referred to herein, Layer 3 may comprise a radio resource control (RRC) layer, described in further detail below. As referred to herein, Layer 2 may comprise a medium access control (MAC) layer, a radio link control (RLC) layer, and a packet data convergence protocol (PDCP) layer, described in further detail below. As referred to herein, Layer 1 may comprise a physical (PHY) layer of a UE/RAN node, described in further detail below. 
       FIG. 12  illustrates example interfaces of baseband circuitry in accordance with some embodiments. As discussed above, the baseband circuitry  1104  of  FIG. 11  may comprise processors  1104 A- 504 E and a memory  1104 G utilized by said processors. Each of the processors  1104 A- 504 E may include a memory interface,  1204 A- 604 E, respectively, to send/receive data to/from the memory  1104 G. 
     The baseband circuitry  1104  may further include one or more interfaces to communicatively couple to other circuitries/devices, such as a memory interface  1212  (e.g., an interface to send/receive data to/from memory external to the baseband circuitry  1104 ), an application circuitry interface  1214  (e.g., an interface to send/receive data to/from the application circuitry  1102  of  FIG. 11 ), an RF circuitry interface  1216  (e.g., an interface to send/receive data to/from RE; circuitry  1106  of  FIG. 11 ), a wireless hardware connectivity interface  1218  (e.g., an interface to send/receive data to/from Near Field Communication (NFC) components, Bluetooth® components (e.g., Bluetooth® Low Energy), Wi-Fi® components, and other communication components), and a power management interface  1220  (e.g., an interface to send/receive power or control signals to/from the PMC  1112 . RF circuitry interface  1216  may particularly include a first interface to a radio designed to communicate via an LTE link and a second interface to a radio designed to communicate via a WLAN/WiFi) link. 
       FIG. 13  is a block diagram illustrating components, according to some example embodiments, able to read instructions from a machine-readable or computer-readable medium (e.g., a non-transitory machine-readable storage medium) and perform any one or more of the methodologies discussed herein. Specifically,  FIG. 13  shows a diagrammatic representation of hardware resources  1300  including one or more processors (or processor cores)  1310 , one or more memory/storage devices  1320 , and one or more communication resources  1330 , each of which may be communicatively coupled via a bus  1340 . For embodiments where node virtualization (e.g., NFV) is utilized, a hypervisor  1302  may be executed to provide an execution environment for one or more network slices/sub-slices to utilize the hardware resources  1300 . 
     The processors  1310  (e.g., a central processing unit (CPU), a reduced instruction set computing (RISC) processor, a complex instruction set computing (CISC) processor, a graphics processing unit (GPU), a digital signal processor (DSP) such as a baseband processor, an application specific integrated circuit (ASIC), a radio-frequency integrated circuit (RFIC), another processor, or any suitable combination thereof) may include, for example, a processor  1312  and a processor  1314 . 
     The memory/storage devices  1320  may include main memory, disk storage, or any suitable combination thereof. The memory/storage devices  1320  may include, but are not limited to any type of volatile or non-volatile memory such as dynamic random-access memory (DRAM), static random-access memory (SRAM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), Flash memory, solid-state storage, etc. 
     The communication resources  1330  may include interconnection or network interface components or other suitable devices to communicate with one or more peripheral devices  1304  or one or more databases  1306  via a network  1308 . For example, the communication resources  1330  may include wired communication components for coupling via a Universal Serial Bus (USB)), cellular communication components, NFC components, Bluetooth® components (e.g., Bluetooth® Low Energy), Wi-Fi® components, and other communication components. 
     Instructions  1350  may comprise software, a program, an application, an applet, an app, or other executable code for causing at least any of the processors  1310  to perform any one or more of the methodologies discussed herein. The instructions  1350  may reside, completely or partially, within at least one of the processors  1310  (e.g., within the processor&#39;s cache memory), the memory/storage devices  1320 , or any suitable combination thereof. Furthermore, any portion of the instructions  1350  may be transferred to the hardware resources  1300  from any combination of the peripheral devices  1304  or the databases  1306 . Accordingly, the memory of processors  1310 , the memory/storage devices  1320 , the peripheral devices  1304 , and the databases  1306  are examples of computer-readable and machine-readable media. 
     A number of examples, relating to implementations of the techniques described above, will next be given. 
     In a first example, a control system may control a far-field anechoic test chamber for a User Equipment (UE) device. The control system may comprise: a computer-readable medium containing program instructions; and one or more processors to execute the program instructions to: control the UE to operate in a mode in which the UE adaptively optimizes an uplink beam of the UE based on received downlink signals; control a positioning device, located within the test chamber, to rotate the UE through a plurality of positions; and receive measurements relating to a plurality of Figures of Merit (FoM) for uplink communications from the UE at a plurality of the positions controlled by the positioning device, the uplink communications being received through an uplink antenna, associated with the test chamber, that is co-located with respect to an active downlink antenna, wherein the FoMs are selected from the set including: maximum output power of the UE, minimum output power of the UE, and adjacent channel leakage power ratio (ACLR). 
     In example 2, the subject matter of example 1, wherein the one or more processors are further to execute the program instructions to: receive second measurements relating to a second set of FoMs, the second measurements being obtained through the uplink antenna and using one or more second downlink antennas, the second downlink antennas being spatially distributed in the test chamber, wherein the second set of FoMs relate to: unwanted emissions, and ACLR. 
     In example 3, the subject matter of example 2 or any of the examples herein, wherein the one or more processors are further to execute the program instructions to: control the UE to operate in a mode in which the UE initially adaptively optimizes the uplink beam of the UE based on the received downlink signals and then fixes the uplink beam for subsequent measurements; receive third measurements relating to a third set of FoMs, the third measurements being obtained through the uplink antenna, using the co-located downlink antenna, and based on the fixed uplink beam, wherein the third set of FoMs relate to: unwanted emissions, and total radiated power. 
     In example 4, the subject matter of example 2, or 3, or any of the examples herein, wherein the positioning device rotates the UE over two-axis of freedom within the test chamber. 
     In example 5, the subject matter of example 1, 2, or 3, or any of the examples herein, wherein the UE includes a 5G New Radio (NR). 
     In a sixth example, a control system may control a far-field anechoic test chamber for a User Equipment (UE) device. The control system may comprise a computer-readable medium containing program instructions; and one or more processors to execute the program instructions to: control the UE to operate in a mode in which the UE adaptively optimizes an uplink beam of the UE based on received downlink signals; control a positioning device, located within the test chamber, to rotate the UE through a plurality of positions; and receive measurements relating to a plurality of Figures of Merit (FoM) for downlink communications to the UE at a plurality of the positions controlled by the positioning device, the downlink communications being transmitted through a downlink antenna, associated with the test chamber, that is co-located with respect to an uplink measurement antenna, wherein the FoMs are selected from the set including: Reference Sensitivity (REFSENS), maximum input level, and Adjacent Channel Selectivity (ACS). 
     In example 7, the subject matter of example 6 or any of the examples herein, wherein the one or more processors are further to execute the program instructions to: receive second measurements relating to second set of FoMs, the second measurements being obtained by additionally using one or more second downlink antennas, as blocker antennas, to transmit interference, wherein the second set of FoMs relate to: ACS, and blocking related measurements. 
     In example 8, the subject matter of example 7, or any of the examples herein, wherein the one or more processors are further to execute the program instructions to: control the UE to operate in a mode in which the UE initially adaptively optimizes the uplink beam of the UE based on the received downlink signals and then fixes the uplink beam for subsequent measurements; receive third measurements relating to third set of FoMs, wherein the third set of FoMs relate to total radiated sensitivity. 
     In example 9, the subject matter of example 5, 6, or 7, or any of the examples herein, wherein the positioning device rotates the LTE over two-axis of freedom within the test chamber. 
     In example 10, the subject matter of example 5, 6, or 7, or any of the examples herein, wherein the UE includes a 5G New Radio (NR). 
     In an 11 th  example, a testing system for a wireless communication device may comprise: an anechoic far-field chamber; a measurement antenna positioned within the chamber; a first link antenna that is co-located, within the chamber, with the measurement antenna; a plurality of second link antennas that are spatially distributed within the chamber; a positioning system configured to mount the communication device and rotate the communication device through at least two-axis of freedom; and a control device to control operation of the measurement antenna, the first link antenna, the plurality of second link antennas, and the positioning system, to: receive measurements relating to a second plurality of FoMs for uplink communications from the wireless communication device, wherein the second plurality of FoMs are selected from the set including: maximum output power of the UE, minimum output power of the UE, adjacent channel leakage power ratio (ACLR), unwanted emissions, and total radiated power. 
     In example 12, the subject matter of example 11 or any of the examples herein, wherein the control device is further to control operation of the measurement antenna, the first link antenna, the plurality of second link antennas, and the positioning system, to: receive measurements relating to a plurality of Figures of Merit (FoM) for downlink communications to the wireless communication device, wherein the FoMs are selected from the set including: Reference Sensitivity (REFSENS), maximum input level, Adjacent Channel Selectivity (ACS), and total radiated sensitivity. 
     In example 13, the subject matter of example 12 or any of the examples herein, wherein during at least some of the FoMs, at least one of the plurality of second link antennas as controlled, as a blocking antenna, to emit interference. 
     In example 14, the subject matter of example 13 or any of the examples herein, wherein the plurality of second link antennas are individually controllable, by the control device, as either a blocking antenna or a downlink link antenna. 
     In example 15, the subject matter of example 11, 12, or 13, or any of the examples herein, wherein the wireless communication device includes a 5G New Radio (NR). 
     In example 16, the subject matter of example 11, 12, or 13, or any of the examples herein, wherein the control device connected to the communication device via a wired testing interface. 
     In example 17, the subject matter of example 11, 12, or 13, or any of the examples herein, wherein the communication device is mounted in the positioning system at or near the center of the test chamber. 
     In example 18, the subject matter of example 11, 12, or 13, or any of the examples herein, wherein the shape of the test chamber is generally spherical. 
     In example 19, the subject matter of example 11, 12, or 13, or any of the examples herein, wherein the control device is further to: control the communication device to operate in a mode in which the communication device initially adaptively optimizes beamforming parameters of an uplink beam of the communication device based on received downlink signals. 
     In example 20, the subject matter of example 19 or any of the examples herein, wherein the control device is further to: adaptively optimize the uplink beam based on initial downlink communications, and then fixes the beamforming parameters for subsequent communications. 
     In a 21 st  example, a control system to control a far-field anechoic test chamber for a UE may comprise: means for controlling the UE to operate in a mode in which the UE adaptively optimizes an uplink beam of the UE based on received downlink signals; means for controlling a positioning device, located within the test chamber, to rotate the UE through a plurality of positions; and means for receiving measurements relating to a plurality of Figures of Merit (FoM) for uplink communications from the UE at a plurality of the positions controlled by the positioning device, the uplink communications being received through an uplink antenna, associated with the test chamber, that is co-located with respect to an active downlink antenna, wherein the FoMs are selected from the set including: maximum output power of the UE, minimum output power of the UE, and adjacent channel leakage power ratio (ACLR). 
     In example 22, the subject matter of example 21 or any of the examples herein, further comprising: means for receiving second measurements relating to a second set of FoMs, the second measurements being obtained through the uplink antenna and using one or more second downlink antennas, the second downlink antennas being spatially distributed in the test chamber, wherein the second set of FoMs relate to: unwanted emissions, and ACLR. 
     In example 20, the subject matter of example 19 or any of the examples herein, further comprising: means for controlling the UE to operate in a mode in which the UE initially adaptively optimizes the uplink beam of the UE based on the received downlink signals and then fixes the uplink beam for subsequent measurements; means for receiving third measurements relating to a third set of FoMs, the third measurements being obtained through the uplink antenna, using the co-located downlink antenna, and based on the fixed uplink beam, wherein the third set of FoMs relate to: unwanted emissions, and total radiated power. 
     In example 24, the subject matter of example 21, 22, or 23, or any of the examples herein, wherein the positioning device rotates the UE over two-axis of freedom within the test chamber. 
     In a example 25, the subject matter of example 21, 22, or 23, or any of the examples herein, wherein the UE includes a 5G New Radio (NR). 
     In a 26 th  example, a method for controlling a far-field anechoic test chamber for User Equipment (UE) comprises: controlling the UE to operate in a mode in which the UE adaptively optimizes an uplink beam of the UE based on received downlink signals; controlling a positioning device, located within the test chamber, to rotate the UE through a plurality of positions; and receiving measurements relating to a plurality of Figures of Merit (FoM) for uplink communications from the UE at a plurality of the positions controlled by the positioning device, the uplink communications being received through an uplink antenna, associated with the test chamber, that is co-located with respect to an active downlink antenna, wherein the FoMs are selected from the set including: maximum output power of the UE, minimum output power of the UE, and adjacent channel leakage power ratio (ACLR). 
     In example 27, the subject matter of example 26, or any of the examples herein, further comprising: receiving second measurements relating to a second set of FoMs, the second measurements being obtained through the uplink antenna and using one or more second downlink antennas, the second downlink antennas being spatially distributed in the test chamber, wherein the second set of FoMs relate to: unwanted emissions, and ACLR. 
     In example 28, the subject matter of example 26, or any of the examples herein, further comprising: controlling the UE to operate in a mode in which the UE initially adaptively optimizes the uplink beam of the UE based on the received downlink signals and then fixes the uplink beam for subsequent measurements; receiving third measurements relating to a third set of FoMs, the third measurements being obtained through the uplink antenna, using the co-located downlink antenna, and based on the fixed uplink beam, wherein the third set of FoMs relate to: unwanted emissions, and total radiated power. 
     In example 28, the subject matter of example 26, 26, or 28, or any of the examples herein, wherein the positioning device rotates the UE over two-axis of freedom within the test chamber. 
     In example 29, the subject matter of example 26, 27, or 28, or any of the examples herein, wherein the UE includes a 5G New Radio (NR). 
     In the preceding specification, various embodiments have been described with reference to the accompanying drawings, it will, however, be evident that various modifications and changes may be made thereto, and additional embodiments may be implemented, without departing from the broader scope as set forth in the claims that follow. The specification and drawings are accordingly to be regarded in an illustrative rather than restrictive sense. 
     For example, while series of signals and/or operations have been described with regard to  FIG. 6 , the order of the signals/operations may be modified in other implementations. Further, non-dependent signals may be performed in parallel. 
     It will be apparent that example aspects, as described above, may be implemented in many different forms of software, firmware, and hardware in the implementations illustrated in the figures. The actual software code or specialized control hardware used to implement these aspects should not be construed as limiting. Thus, the operation and behavior of the aspects were described without reference to the specific software code it being understood that software and control hardware could be designed to implement the aspects based on the description herein. 
     Even though particular combinations of features are recited in the claims and/or disclosed in the specification, these combinations are not intended to be limiting. In fact, many of these features may be combined in ways not specifically recited in the claims and/or disclosed in the specification. 
     No element, act, or instruction used in the present application should be construed as critical or essential unless explicitly described as such. An instance of the use of the term “and,” as used herein, does not necessarily preclude the interpretation that the phrase “and/or” was intended in that instance. Similarly, an instance of the use of the term “or,” as used herein, does not necessarily preclude the interpretation that the phrase “and/or” was intended in that instance. Also, as used herein, the article “a” is intended to include one or inure items, and may be used interchangeably with the phrase “one or more.” Where only one item is intended, the terms “one,” “single,” “only,” or similar language is used.

Metadata:
Filing Date: 20171229
Publication Date: 20201229
Grant Date: 20201229
Priority Date: 20170106
Inventors: IOFFE, Anatoliy
Assignee: APPLE INC
CPC Classifications: [{"code": "H04B17/14", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04B17/29", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04W52/367", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04B17/15", "inventive": true, "first": true, "tree": "[]"}, {"code": "H04B17/103", "inventive": false, "first": false, "tree": "[]"}, {"code": "H04B17/29", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01Q3/267", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04B17/102", "inventive": false, "first": false, "tree": "[]"}, {"code": "H04B17/101", "inventive": true, "first": true, "tree": "[]"}, {"code": "G01R29/0821", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04B17/15", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04B17/15", "inventive": true, "first": true, "tree": "[]"}, {"code": "H04B17/29", "inventive": true, "first": false, "tree": "[]"}]
Family ID: 62567720