CN110839252A - Measuring device and measuring method with optimal speed - Google Patents
Measuring device and measuring method with optimal speed Download PDFInfo
- Publication number
- CN110839252A CN110839252A CN201810933883.XA CN201810933883A CN110839252A CN 110839252 A CN110839252 A CN 110839252A CN 201810933883 A CN201810933883 A CN 201810933883A CN 110839252 A CN110839252 A CN 110839252A
- Authority
- CN
- China
- Prior art keywords
- channels
- channel
- measurement
- under test
- device under
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/06—Testing, supervising or monitoring using simulated traffic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
Abstract
The invention relates to a measuring device and a measuring method with optimal speed. The invention provides a measurement device (2) for performing measurements on a device under test (1). The measuring device (2) comprises a communication module (10), the communication module (10) being configured for establishing a communication connection (7) with the device under test (1). The communication connection (7) is based on a first plurality of channels. Furthermore, the communication module (10) is configured for sending a channel reduction command to the device under test (1) and instructing the device under test (1) to reduce the channels for the communication connection (7) from the first plurality of channels to a second plurality of channels.
Description
Technical Field
The present invention relates to performing measurements on a device under test, and more particularly to performing measurements on a bluetooth communication device using random channel selection.
Background
In many communication standards, random channel assignments are made from a large number of available channels when communicating. When testing communication devices according to these standards, measurements need to be performed on each of these channels. However, performing measurements on all channels is a very time consuming attempt due to random channel allocation. Such communication standards are for example bluetooth with 79 channels and bluetooth low energy with 37 channels. The measurements on bluetooth devices are shown, for example, in document EP 3322244 a 1.
Disclosure of Invention
It is therefore an object of the present invention to provide a measuring device, a measuring system and a measuring method which allow a high measuring speed.
This object is achieved by the features of the device of claim 1, by the features of the system of claim 10 and by the features of the method of claim 11. The dependent claims contain further developments.
According to a first aspect of the invention, a measurement device for performing measurements on a device under test is provided. The measurement device includes a communication module configured to establish a communication connection with a device under test, the communication connection based on a first plurality of channels. Further, the communication module is configured to send a channel reduction command to the device under test and instruct the device under test to reduce channels used for the communication connection from the first plurality of channels to a second plurality of channels. This significantly reduces the amount of time required for testing a single channel.
Advantageously, the measurement device further comprises a measurement module configured to perform measurements on the device under test using the second plurality of channels. Since the second plurality of channels is less than the first plurality of channels, an increase in measurement speed is achieved.
Further advantageously, the measurement is a channel characteristic measurement, preferably a bidirectional channel characteristic measurement. A very large measurement flexibility is thus achieved.
Advantageously, the communication connection is a bluetooth communication connection, preferably a bluetooth low energy communication connection. The channel decrease command is an ll _ channel _ map _ req command and/or an LMP _ set _ AFH command. This allows a very efficient signaling of a reduced number of channels.
Preferably, the communication module is further configured for transmitting the channel reduction command such that the second plurality of channels comprises less than 10 channels, preferably less than 5 channels, more preferably less than 4 channels, most preferably 2 channels. This leads to a further increase in the measurement speed.
Advantageously, the communication module is configured for sending the channel reduction command such that one channel of the second plurality of channels is a channel to be measured and all other channels of the second plurality of channels, except for the channel to be measured, are remaining channels not related to the measurement. This allows the channel to be measured to be directly targeted.
Advantageously, the communication module is configured for sending the channel decrease command such that the channel to be measured is at least 5 channels, preferably at least 10 channels away from the nearest remaining channel. This reduces interference during measurement.
Alternatively, the communication module is configured to send the channel decrease command such that the channel to be measured is at a maximum channel distance from the nearest remaining channel. This also reduces measurement interference.
Alternatively, the communication module is configured to send the channel decrease command such that the channel to be measured is at a minimum channel distance from the nearest remaining channel. This allows for continuous measurement of multiple channels without changing the oscillator settings of the measurement device.
According to a second aspect of the present invention, there is provided a measuring system comprising a measuring device according to the first aspect of the present invention and a device under test. This allows a complete measurement to be performed within the measurement system.
According to a third aspect of the present invention, a measurement method for performing measurements on a device under test is provided. The method comprises the following steps: establishing a communication connection with the device under test, the communication connection being based on a first plurality of channels; and sending a channel reduction command to the device under test instructing the device under test to reduce the channels for the communication connection from the first plurality of channels to a second plurality of channels. This significantly reduces the amount of time required to test a single channel.
Advantageously, the method comprises performing measurements on the device under test using the second plurality of channels. Since the second plurality of channels is less than the first plurality of channels, an increase in measurement speed is achieved.
Further advantageously, the measurement is a channel characteristic measurement, preferably a bidirectional channel characteristic measurement. A very large measurement flexibility is thus achieved.
Further advantageously, the communication connection is a bluetooth communication connection, preferably a bluetooth low energy communication connection. The channel decrease command is an ll _ channel _ map _ req command and/or an LMP _ set _ AFH command. This allows a very efficient signaling of a reduced number of channels.
Drawings
Exemplary embodiments of the invention will now be further explained with reference to the accompanying drawings, in which:
FIG. 1 illustrates an exemplary first plurality of channels;
fig. 2 shows in a block diagram a first embodiment of a measuring device according to the first aspect of the invention and a first embodiment of a measuring system according to the second aspect of the invention;
FIG. 3 illustrates an exemplary second plurality of channels;
fig. 4 shows a second embodiment of a measuring device according to the first aspect of the invention and a second embodiment of a measuring system according to the second aspect of the invention; and
fig. 5 shows in a flow chart an embodiment of the measuring method according to the third aspect of the invention.
Detailed Description
According to fig. 1 and 3, the difference between measurements on all channels and measurements on selected channels is shown. With respect to fig. 2 and 4, different embodiments of the measuring device according to the first aspect and the measuring system of the second aspect of the invention are described. Finally, with respect to fig. 5, an embodiment of the measurement method of the third aspect of the invention is shown. Similar entities and reference numerals in different figures have been partly omitted.
In fig. 1, a first plurality of channels 4 is shown. Here, channel CH 1-channel CH15 are depicted. The number of channels shown herein should not be construed as limiting. Furthermore, channel 5(CH6) to be measured is depicted. When random channel selection is performed during communication, it may take a long time to randomly select the channel 5 to be measured.
In fig. 2, a first embodiment of a measuring device 2 according to the first aspect of the invention is shown. The device under test 1 is connected to a measuring device 2. The device under test 1 and the measuring device 2 together form a first embodiment of a measuring system 3 according to the second aspect of the invention.
The device under test 1 is a communication device, preferably a bluetooth communication device or a bluetooth low energy communication device. In particular, the device under test may be a headset, a heart rate monitor, a mobile phone or any other mobile communication device.
The measurement device 2 comprises a communication module 10, a measurement module 11 and a controller 12. The controller is connected to the communication module 10 and the measurement module 11. The controller 12 controls the functions of all other components of the measuring device 2.
In particular, the communication module 10 is connected to the device under test 1 by a wired connection. At the same time, the measurement module 11 is wirelessly connected to the device under test 1. However, these two connections should not be construed as limiting. The communication module 10 and the measurement module 11 may also be connected by a shared wired connection, or both the communication module 10 and the measurement module 11 may be connected wirelessly. In fig. 4, an alternative embodiment is shown.
When performing the measurement, the communication module 10 establishes a communication connection 7 between the device under test 1 and the measuring device 2. In particular, in this embodiment, a communication connection 7 is established between the device under test 1 and the measurement module 11.
The communication module 10 then sends a channel decrease command to the device under test 1 instructing the device under test 1 to decrease the channels for the communication connection 7 from the first plurality of channels to the second plurality of channels. Wherein the second plurality of channels is less than the first plurality of channels. This measure reduces the time until the channel to be measured is randomly selected, since the channel actually used for the communication connection 7 is randomly allocated from said second plurality of channels.
To perform the measurement, the measurement module 11 now sends and receives messages over the communication connection 7. The measurement module 11 performs channel characteristic measurement. When receiving a message from the device under test 1, the measurement module 11 measures the received signal. Alternatively, when the measurement unit 11 sends messages to the device under test 1, the device under test 1 receives these messages and sends the measurement parameters back to the communication unit 10, which the communication unit 10 provides to the measurement unit 11 via the controller 12.
Advantageously, these channel characteristics measured by the measurement unit 11 are power level, and/or modulation and/or transmission characteristics and/or reception characteristics and/or frequency drift.
In particular, all channels to be measured may be selected and measured by successively reselecting available channels within said second plurality of channels.
To perform the reduction of the channel, a channel reduction command is used. If the device under test 1 is a bluetooth communication device or a bluetooth low energy communication device, the ll _ channel _ map _ req command and/or the LMP _ set _ AFH command is used. These commands are actually for the purpose of marking channels with poor channel characteristics as unused channels according to the bluetooth communication standard and the bluetooth low energy communication standard. In accordance with the present invention, to reduce the number of available channels, these commands are used against their intended purpose in order to speed up the measurement of the specified channel.
To speed up the measurement to the maximum extent possible, the number of channels is reduced as much as possible. In particular, according to bluetooth low energy, it can be reduced to only two channels. According to conventional bluetooth, it can be reduced to 20 channels.
This reduction in the number of channels can be easily seen in fig. 3. Here, a second plurality of channels 6 is shown. The second plurality of channels 6 now includes only channel CH6, channel CH13, channel CH14, and channel CH 15. Now, only four channels of the second plurality of channels 6 (instead of 15 channels of the first plurality of channels 4 as shown in fig. 1) are available for random channel selection. When a desired channel is randomly selected from the used channels (in the example of fig. 3: CH6, CH13, CH14, and CH15), the probability of quickly measuring the desired channel is significantly improved.
Advantageously, the second plurality of channels is selected such that the remaining channels CH13-CH15 are as far away as possible from the channel 5 to be measured in order to reduce measurement interference. Alternatively, the channels may be arranged as close as possible to allow the channels to be measured continuously without having to reset the frequency of the measuring device.
Although a second plurality of channels 6 having four channels is depicted in the example of fig. 3, this number should not be construed as limiting. As mentioned before, the channels are limited to at most 10, preferably at most 5, more preferably at most 4 and most preferably 2.
Furthermore, in fig. 4, a further embodiment of the measuring device 2 according to the first aspect and the measuring system 3 according to the second aspect is provided. Here, the measuring device 2 further comprises a transceiver 13, the transceiver 13 being connected to the communication module 10 and the measuring module 11. The transceiver module 13 is not shown in fig. 2 (although the transceiver module is integrated into the measurement module 11).
The transceiver 13 actually transmits and receives by radio with respect to the device under test 1. The communication module 10 and the measurement module 11 communicate with the device under test 1 via the transceiver 13. In particular, both communications are here wireless communications.
Finally, in fig. 5, an embodiment of a measurement method according to the third aspect of the invention is provided. The measurement method according to the third aspect and the measurement apparatus according to the first aspect are closely related to each other. Therefore, the features of the measuring device according to the first aspect are also to be understood as being disclosed for the measuring method according to the third aspect.
In a first step 100, a communication connection with the device under test is established, the communication connection being based on a first plurality of channels.
In a second step 101, a channel reduction command is sent to the device under test instructing the device under test to reduce the channels used for the communication connection from the first plurality of channels to the second plurality of channels.
The present invention is not limited to the above examples and in particular to a specific communication standard or number of channels. The invention discussed above can be applied to many different communication standards and channel numbers. The features of the exemplary embodiments may be used in any advantageous combination.
Claims (14)
1. A measurement device for performing measurements on a device under test (1), the measurement device comprising a communication module (10), the communication module (10) being configured for:
-establishing a communication connection (7) with the device under test (1),
wherein the communication connection (7) is based on a first plurality of channels (4); and
-sending a channel decrease command to the device under test (1) instructing the device under test (1) to decrease the channels for the communication connection (7) from the first plurality of channels (4) to a second plurality of channels (6).
2. The measurement device according to claim 1, wherein the measurement device comprises a measurement module (11), the measurement module (11) being configured for performing measurements on the device under test (1) using the second plurality of channels (6).
3. The measurement device according to claim 2, wherein the measurement is a channel characteristic measurement, preferably a bidirectional channel characteristic measurement.
4. Measuring device according to claim 1, wherein the communication connection (7) is a bluetooth communication connection (7), preferably a bluetooth low energy communication connection (7), and
wherein the channel reduction command is an ll _ channel _ map _ req command and/or an LMP _ set _ AFH command.
5. The measurement device according to claim 1, wherein the communication module (10) is configured for transmitting the channel reduction command such that the second plurality of channels (6) comprises less than 10 channels, preferably less than 5 channels, more preferably less than 4 channels, most preferably 2 channels.
6. The measurement device according to claim 1, wherein the communication module (10) is configured for transmitting the channel reduction command such that:
-one channel of said second plurality of channels (6) is a channel (5) to be measured, and
-all other channels of the second plurality of channels (6), except the channel (5) to be measured, are the remaining channels not related to the measurement.
7. The measurement device according to claim 6, wherein the communication module (10) is configured for transmitting the channel decrease command such that the channel to be measured (5) is at least 5 channels, preferably at least 10 channels away from the nearest remaining channel.
8. The measurement device according to claim 6, wherein the communication module (10) is configured for transmitting the channel decrease command such that the channel (5) to be measured is at a maximum channel distance from the closest remaining channel.
9. The measurement device according to claim 6, wherein the communication module (10) is configured for transmitting the channel decrease command such that the channel (5) to be measured is at a minimum channel distance from the closest remaining channel.
10. A measuring system comprising a measuring device according to any of claims 1 to 9 and a device under test (1).
11. A measurement method for performing measurements on a device under test (1), comprising:
-establishing (100) a communication connection (7) with the device under test (1), wherein the communication connection (7) is based on a first plurality of channels (4); and
-sending (101) a channel decrease command to the device under test (1) instructing the device under test (1) to decrease the channels for the communication connection (7) from the first plurality of channels (4) to a second plurality of channels (6).
12. The measurement method according to claim 11, comprising performing measurements on the device under test (1) using the second plurality of channels (6).
13. A measurement method according to claim 12, wherein the measurement is a channel characteristic measurement, preferably a bidirectional channel characteristic measurement.
14. The measurement method according to claim 11, wherein the communication connection (7) is a bluetooth communication connection (7), preferably a bluetooth low energy communication connection (7), and
wherein the channel reduction command is an ll _ channel _ map _ req command and/or an LMP _ set _ AFH command.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810933883.XA CN110839252A (en) | 2018-08-16 | 2018-08-16 | Measuring device and measuring method with optimal speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810933883.XA CN110839252A (en) | 2018-08-16 | 2018-08-16 | Measuring device and measuring method with optimal speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110839252A true CN110839252A (en) | 2020-02-25 |
Family
ID=69573247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810933883.XA Pending CN110839252A (en) | 2018-08-16 | 2018-08-16 | Measuring device and measuring method with optimal speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110839252A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020136268A1 (en) * | 2001-01-25 | 2002-09-26 | Hongbing Gan | Approach for selecting communications channels based on performance |
| US20030134658A1 (en) * | 2002-01-11 | 2003-07-17 | Alcatel | Method for communicating messages within a wireless communication network involving measurement of channel characteristics and communication network implementing said method |
| CN1791042A (en) * | 2004-12-17 | 2006-06-21 | 松下电器产业株式会社 | Wireless device and wireless channel measurement controller |
| US20090093217A1 (en) * | 2007-10-09 | 2009-04-09 | Samsung Electronics Co., Ltd. | Channel measurement method and apparatus of multi-band multi-standby mobile terminal |
| US20130281144A1 (en) * | 2012-04-20 | 2013-10-24 | Realtek Semiconductor Corp. | Channel selection method using channel quality information of neighboring channels and related channel selection device |
| US20150163806A1 (en) * | 2012-07-04 | 2015-06-11 | Mitsubishi Electric Corporation | Wireless communication apparatus and method for selecting communication channel |
| CN105430748A (en) * | 2010-10-19 | 2016-03-23 | 索尼爱立信移动通讯有限公司 | Wireless communication device and method for operating wireless communication device |
| US20170245285A1 (en) * | 2016-02-23 | 2017-08-24 | Nokia Technologies Oy | Method, apparatus, and computer program product for wireless short-range communication channel selection |
| CN107637150A (en) * | 2015-09-10 | 2018-01-26 | 广东欧珀移动通信有限公司 | The method and apparatus that channel measurement reports with measurement result |
| EP3322244A1 (en) * | 2010-10-19 | 2018-05-16 | Sony Ericsson Mobile Communications AB | Mobile-assisted channel selection in devices having multiple radio transceivers |
-
2018
- 2018-08-16 CN CN201810933883.XA patent/CN110839252A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020136268A1 (en) * | 2001-01-25 | 2002-09-26 | Hongbing Gan | Approach for selecting communications channels based on performance |
| US20030134658A1 (en) * | 2002-01-11 | 2003-07-17 | Alcatel | Method for communicating messages within a wireless communication network involving measurement of channel characteristics and communication network implementing said method |
| CN1791042A (en) * | 2004-12-17 | 2006-06-21 | 松下电器产业株式会社 | Wireless device and wireless channel measurement controller |
| US20090093217A1 (en) * | 2007-10-09 | 2009-04-09 | Samsung Electronics Co., Ltd. | Channel measurement method and apparatus of multi-band multi-standby mobile terminal |
| CN105430748A (en) * | 2010-10-19 | 2016-03-23 | 索尼爱立信移动通讯有限公司 | Wireless communication device and method for operating wireless communication device |
| EP3322244A1 (en) * | 2010-10-19 | 2018-05-16 | Sony Ericsson Mobile Communications AB | Mobile-assisted channel selection in devices having multiple radio transceivers |
| US20130281144A1 (en) * | 2012-04-20 | 2013-10-24 | Realtek Semiconductor Corp. | Channel selection method using channel quality information of neighboring channels and related channel selection device |
| US20150163806A1 (en) * | 2012-07-04 | 2015-06-11 | Mitsubishi Electric Corporation | Wireless communication apparatus and method for selecting communication channel |
| CN107637150A (en) * | 2015-09-10 | 2018-01-26 | 广东欧珀移动通信有限公司 | The method and apparatus that channel measurement reports with measurement result |
| US20170245285A1 (en) * | 2016-02-23 | 2017-08-24 | Nokia Technologies Oy | Method, apparatus, and computer program product for wireless short-range communication channel selection |
| CN107105386A (en) * | 2016-02-23 | 2017-08-29 | 诺基亚技术有限公司 | Method, device and the computer program product of wireless short-range communication Channel assignment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10721748B2 (en) | Communication resource scheduling for device-to-device (D2D) communication in an unlicensed frequency band | |
| KR101712669B1 (en) | Method and apparatus for managing resources of p2p communication in wireless communication system | |
| KR100810247B1 (en) | Method and apparatus for allocation of channel in a orthogonal frequency division multiple access system | |
| EP0953259B1 (en) | A connection establishment method, a subscriber terminal unit and a radio system | |
| US7567531B2 (en) | Adaptive transmission channel allocation method and system for ISM and unlicensed frequency bands | |
| KR102010807B1 (en) | Information exchange method and apparatus for d2d communication | |
| US6253063B1 (en) | Method and apparatus for selecting a communication data rate between mobile and base stations | |
| CN103209459B (en) | The transmission method of data and device | |
| KR20100138723A (en) | Device and method for controlling uplink transmission power in wireless communication system | |
| CN107371182A (en) | User equipment and its data transmission method | |
| CN105027655A (en) | Low power device to device transmission | |
| CN103546970A (en) | Control method for communication between devices, central control device and mobile device | |
| CN103781016A (en) | Method and device for selecting communication mode and terminal | |
| US11611885B2 (en) | Radio communication device and radio communication method | |
| US10820179B2 (en) | Control apparatus and communication terminal | |
| KR102213461B1 (en) | Method and apparatus for power control and multiplexing for device to device communication in wirelss cellular communication system | |
| KR20140124088A (en) | Apparatus and method for performing device to device communication in an wireless communication system | |
| EP3100382B1 (en) | Power allocation in distributed antenna systems based on key performance indicators | |
| KR20190007037A (en) | Random Access Procedure and Burst Transmission in High Frequency Systems | |
| KR20090042258A (en) | Methods of transmitting and receiving data, and apparatus therefor | |
| KR101868635B1 (en) | Apparatus and method for transmitting and receiving a signal in a near field communication system | |
| JP5430390B2 (en) | Radio base station and frequency band selection method for radio base station | |
| KR100662714B1 (en) | Radio communication system, radio network controller, mobile station and down link transmission power control method | |
| CN108347768B (en) | Preamble resource grouping method, preamble selecting method, network device and terminal device | |
| CN110839252A (en) | Measuring device and measuring method with optimal speed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |