CN111432421B - Synchronous test method for multiple tested terminals of 5G communication test instrument - Google Patents
Synchronous test method for multiple tested terminals of 5G communication test instrument Download PDFInfo
- Publication number
- CN111432421B CN111432421B CN202010254734.8A CN202010254734A CN111432421B CN 111432421 B CN111432421 B CN 111432421B CN 202010254734 A CN202010254734 A CN 202010254734A CN 111432421 B CN111432421 B CN 111432421B
- Authority
- CN
- China
- Prior art keywords
- user
- tested
- signal
- test
- algorithm
- 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.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 107
- 238000004891 communication Methods 0.000 title claims abstract description 13
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 7
- 238000010998 test method Methods 0.000 title claims abstract description 6
- 238000004422 calculation algorithm Methods 0.000 claims abstract description 47
- 230000008030 elimination Effects 0.000 claims abstract description 10
- 238000003379 elimination reaction Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000005516 engineering process Methods 0.000 claims abstract description 6
- 230000009471 action Effects 0.000 claims abstract description 4
- 238000004088 simulation Methods 0.000 claims abstract description 4
- 238000005457 optimization Methods 0.000 claims description 12
- 238000012937 correction Methods 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 abstract description 3
- 206010042135 Stomatitis necrotising Diseases 0.000 abstract description 2
- 201000008585 noma Diseases 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a synchronous test method for a plurality of tested terminals of a 5G communication test instrument, which is characterized in that required service quality is obtained through simulation according to action types, requirements and attenuation values of data of each tested terminal, distribution power is determined according to the required service quality and channel quality, and test signals of each tested terminal are sent according to the distribution power to obtain interference signals. And decoding the interference signal by taking one sub-band as a unit to obtain a signal to be tested by adopting an interference elimination algorithm, sequentially inputting the obtained signal to be tested into a first test unit for test calculation, wherein each test unit in the 5G test equipment is in the calculation process. And testing the signals to be tested in sequence until the last signal is tested by the Nth testing unit, and obtaining a testing result after the testing is finished. According to the invention, the NOMA technology is combined with the 5G test equipment, so that one 5G test equipment can test a plurality of test ends simultaneously, the test efficiency is improved, and the test cost is reduced.
Description
Technical Field
The invention relates to the field of 5G equipment testing, in particular to a synchronous testing method for a plurality of tested terminals of a 5G communication test instrument.
Background
The 5G test equipment comprises a first test unit, a second test unit, a … … and an Nth test unit, and the decoded signals are required to be sequentially input into the first test unit, the second test unit, the … … and the Nth test unit, so that the final test result can be obtained. A5G test equipment can only test a test end simultaneously, and the test efficiency in the current 5G test field is limited, and the resource occupation is great, and the hardware configuration of the test end required according to the increase of the number of users also correspondingly increases, so that the test cost is increased and the test efficiency is lower.
Disclosure of Invention
The invention aims to provide a synchronous test method for a plurality of tested terminals of a 5G communication test instrument, which aims to solve the technical problems in the background technology.
The invention is realized by the following technical scheme: the invention discloses a synchronous test method for a plurality of tested terminals of a 5G communication test instrument, which comprises a power distribution step, a user pairing step, an interference elimination step and a protocol test step,
the power distribution step adopts a power distribution algorithm, obtains the required service quality by simulation according to the action type, the requirement and the attenuation value of the data of each tested terminal, determines the power to be distributed according to the required service quality and the channel quality,
transmitting test signals of users according to the power to be allocated to obtain interference signals, obtaining a plurality of interference signals with different powers by a plurality of users, arranging the interference signals from large to small according to the power to form a user set, wherein data in the user set are different users with the same frequency and different powers at the same time, and the data in the user set are mutually overlapped in the same sub-channel to be transmitted;
the user pairing step, the receiving end receives the data in the user set, pairs the data in the user set, and adopts a preset pairing algorithm to pair users with large power difference together to form a plurality of user subsets, wherein the user subsets select sub-frequency bands based on channel condition, and one user subset occupies one sub-frequency band;
the interference elimination step adopts an interference elimination algorithm, decodes the interference signals by taking a sub-frequency band as a unit to obtain signals to be tested, the interference elimination algorithm comprises a SIC algorithm, the SIC algorithm operates according to the sequence of the signal power, firstly, a user signal with the maximum signal power carries out decision operation to obtain a corresponding signal, then, the multiple access interference caused by the user to other overlapped users is eliminated, and the multiple access interference is sequentially circulated until the number of the interference signals is 0;
and the protocol testing step is to obtain a first signal to be tested obtained by decoding, input the first signal to be tested into a first testing unit, obtain a second signal to be tested as a second signal to be tested when the first testing unit inputs the first signal to be tested into a second testing unit after the first testing unit finishes analyzing the first signal to be tested, input the second signal to be tested into the first testing unit, and sequentially perform testing until the last signal to be tested by an Nth testing unit is finished, and obtain a testing result.
Preferably, the interference cancellation algorithm further includes an MMSE algorithm (minimum mean square error) that decodes the interference signal in combination with a SIC algorithm (successive interference cancellation).
Preferably, the power distribution algorithm firstly constructs a power optimization problem, then converts the power optimization problem into a convex optimization problem by utilizing a convex relaxation technology, and finally obtains the power to be distributed by solving by utilizing a classical convex optimization theory.
Preferably, in the user pairing step, the pairing algorithm is: setting the user subset, selecting a user corresponding to any interference signal in the user set as a user to be paired, classifying the user to be paired into the user subset, selecting any user corresponding to any interference signal except the user to be paired in the user set as a user to be picked, calculating a variance value of power between the user to be paired and the user to be picked to obtain a variance value to be compared, classifying the user to be picked into the user subset if the variance value to be compared is larger than a preset reference variance value in the pairing algorithm, classifying the user to be picked into the user subset if the variance value to be compared is smaller than or equal to the preset reference variance value in the pairing algorithm, not selecting the user to be picked, and after all users corresponding to any interference signal except the user to be paired in the user set are selected as the user to be picked, finishing user pairing in the user subset, setting another user subset, and carrying out next round of selection until all data in the user set are selected into different user subsets.
Preferably, the reference variance value is corrected by a preset correction algorithm according to a variance value between the signal to be tested and the test signal of the user.
Preferably, the correction algorithm is: selecting a user corresponding to any interference signal in the user set as a reference user, calculating the variance values of the power between the reference user and the users corresponding to the residual interference signals in the user set one by one to obtain a plurality of common variance values, calculating the average value of the common variance values to obtain a mean square error value, obtaining the difference value between the test signal of the user and the signal to be tested to obtain a deviation parameter, and multiplying the deviation parameter by the average variance value to obtain the reference variance value.
Compared with the prior art, the invention has the advantages that: the 5G test has a severe test standard, and multiple meters are required for 5G test on multiple test terminals, which has a large test traffic. According to the invention, NOMA technology (NonOrthogonal Multiple Access) is combined with 5G test equipment, signals to be tested, which are transmitted by a plurality of test ends at the same time, are sequentially decomposed into a first signal to be tested, a second signal to be tested, … … and an Nth signal to be tested, and are sequentially input into a first test unit in the 5G test equipment for testing, and each test unit in the 5G test equipment is in a calculation process, so that one 5G test equipment can test a plurality of test ends at the same time. Testing latency can reduce challenges on 5G testing.
Drawings
FIG. 1 is a flow chart of the simplified steps of the present invention;
fig. 2 is a flow chart of the present invention.
Detailed Description
The present invention will be described in detail herein by way of the accompanying drawings and examples.
As shown in fig. 1 and 2, a method for synchronously testing a plurality of tested terminals of a 5G communication test instrument includes a power distribution step, a user pairing step, an interference elimination step and a protocol test step,
as shown in fig. 2, in the step of power allocation, a power allocation algorithm is adopted, the required service quality is obtained through simulation according to the action type, the requirement and the attenuation value of the data of each tested terminal, and the power to be allocated is determined according to the required service quality and the channel quality. The power distribution algorithm is to construct a power optimization problem firstly, then to convert the power optimization problem into a convex optimization problem by utilizing a convex relaxation technology, and finally to solve the problem by utilizing a classical convex optimization theory to obtain the power to be distributed.
Transmitting the test signals of the users according to the power to be distributed to obtain interference signals, obtaining a plurality of interference signals with different powers by a plurality of users, arranging the interference signals from large to small according to the power to form a user set, and simultaneously overlapping the data in the user set in the same sub-channel for transmission by the data in the user set for different users with the same frequency and different powers;
as shown in fig. 2, in the step of user pairing, the receiving end receives the data in the user set, pairs the data in the user set, and adopts a preset pairing algorithm to pair the users with large power difference together to form a plurality of user subsets, wherein the user subsets select sub-bands based on the channel condition, and one user subset occupies one sub-band. The pairing algorithm is as follows: setting a user subset, selecting a user corresponding to any interference signal in the user set as a user to be paired, classifying the user to be paired into the user subset, selecting a user corresponding to any interference signal except the user to be paired in the user set as a user to be selected, calculating a variance value of power between the user to be paired and the user to be selected to obtain a variance value to be compared, classifying the user to be selected into the user subset if the variance value to be compared is larger than a preset reference variance value in a pairing algorithm, classifying the user to be selected into the user subset if the variance value to be compared is smaller than or equal to the preset reference variance value in the pairing algorithm, and after all the users corresponding to any interference signal except the user to be paired in the user set are classified as users to be selected, finishing user pairing in the user subset, setting another user subset, and selecting the next round until data in the user set are all selected into different user subsets.
And correcting the reference variance value by adopting a preset correction algorithm according to the deviation value between the signal to be tested and the test signal of the user. The correction algorithm is as follows: selecting a user corresponding to any interference signal in a user set as a reference user, calculating the variance value of the power between the reference user and the user corresponding to the residual interference signal in the user set one by one to obtain a plurality of common variance values, calculating the average value of the plurality of common variance values to obtain a mean square error value, obtaining the difference value between the test signal of the user and the signal to be tested to obtain a deviation parameter, and multiplying the deviation parameter and the average variance value to obtain the reference variance value.
As shown in fig. 2, in the interference cancellation step, an interference cancellation algorithm is adopted, an interference signal is decoded by taking a subband as a unit to obtain a signal to be tested, the interference cancellation algorithm comprises a SIC algorithm, the SIC algorithm operates according to the sequence of the signal power, the user signal with the largest signal power firstly carries out decision operation to obtain a corresponding signal, then the multiple access interference caused by the user to other superimposed users is eliminated, and the steps are sequentially circulated until the number of the interference signals is 0. The interference cancellation algorithm also includes an MMSE algorithm (minimum mean square error) that decodes the interference signal in combination with a SIC algorithm (successive interference cancellation).
As shown in fig. 2, in the protocol test step, a first signal obtained by decoding is obtained as a first signal to be tested, the first signal to be tested is input into a first test unit, when the first test unit inputs the first signal to be tested into a second test unit after the first test unit finishes analyzing the first signal to be tested, a second signal obtained by decoding is obtained as a second signal to be tested, the second signal to be tested is input into the first test unit, and the test is sequentially performed until the last signal is tested by an nth test unit, and the test is finished, thereby obtaining a test result.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A synchronous test method for a plurality of tested terminals of a 5G communication test instrument is characterized by comprising a power distribution step, a user pairing step, an interference elimination step and a protocol test step,
the power distribution step adopts a power distribution algorithm, obtains the required service quality by simulation according to the action type, the requirement and the attenuation value of the data of each tested terminal, determines the power to be distributed according to the required service quality and the channel quality,
transmitting test signals of users according to the power to be allocated to obtain interference signals, obtaining a plurality of interference signals with different powers by a plurality of users, arranging the interference signals from large to small according to the power to form a user set, wherein data in the user set are different users with the same frequency and different powers at the same time, and the data in the user set are mutually overlapped in the same sub-channel to be transmitted;
the user pairing step, the receiving end receives the data in the user set, pairs the data in the user set, and adopts a preset pairing algorithm to pair users with large power difference together to form a plurality of user subsets, wherein the user subsets select sub-frequency bands based on channel condition, and one user subset occupies one sub-frequency band;
the interference elimination step adopts an interference elimination algorithm, decodes the interference signals by taking a sub-frequency band as a unit to obtain signals to be tested, the interference elimination algorithm comprises a SIC algorithm, the SIC algorithm operates according to the sequence of the signal power, firstly, a user signal with the maximum signal power carries out decision operation to obtain a corresponding signal, then, the multiple access interference caused by the user to other overlapped users is eliminated, and the multiple access interference is sequentially circulated until the number of the interference signals is 0;
and the protocol testing step is to obtain a first signal to be tested obtained by decoding, input the first signal to be tested into a first testing unit, obtain a second signal to be tested obtained by decoding when the first testing unit inputs the first signal to be tested into a second testing unit after the first signal to be tested is analyzed, input the second signal to be tested into the first testing unit, and sequentially perform testing until the last signal to be tested is tested by an Nth testing unit, and obtain a testing result.
2. The method for synchronously testing a plurality of tested terminals of a 5G communication test instrument according to claim 1, wherein the interference cancellation algorithm further comprises an MMSE algorithm, and the MMSE algorithm decodes the interference signal in combination with a SIC algorithm.
3. The method for synchronously testing the multiple tested terminals of the 5G communication test instrument according to claim 1, wherein the power distribution algorithm is characterized in that a power optimization problem is firstly constructed, then the power optimization problem is converted into a convex optimization problem by utilizing a convex relaxation technology, and finally the power to be distributed is obtained by solving by utilizing a classical convex optimization theory.
4. The method for synchronously testing multiple tested terminals of the 5G communication test instrument according to claim 1, wherein in the step of pairing users, the pairing algorithm is as follows: setting the user subset, selecting a user corresponding to any interference signal in the user set as a user to be paired, classifying the user to be paired into the user subset, selecting any user corresponding to any interference signal except the user to be paired in the user set as a user to be picked, calculating a variance value of power between the user to be paired and the user to be picked to obtain a variance value to be compared, classifying the user to be picked into the user subset if the variance value to be compared is larger than a preset reference variance value in the pairing algorithm, classifying the user to be picked into the user subset if the variance value to be compared is smaller than or equal to the preset reference variance value in the pairing algorithm, not selecting the user to be picked, and after all users corresponding to any interference signal except the user to be paired in the user set are selected as the user to be picked, finishing user pairing in the user subset, setting another user subset, and carrying out next round of selection until all data in the user set are selected into different user subsets.
5. The method for synchronously testing a plurality of tested terminals of a 5G communication test instrument according to claim 4, wherein the reference variance value is corrected by a preset correction algorithm according to a deviation value between the signal to be tested and the test signal of the user.
6. The method for synchronously testing the multiple tested terminals of the 5G communication test instrument according to claim 5, wherein the correction algorithm is as follows: selecting a user corresponding to any interference signal in the user set as a reference user, calculating the variance values of the power between the reference user and the users corresponding to the residual interference signals in the user set one by one to obtain a plurality of common variance values, calculating the average value of the common variance values to obtain a mean square error value, obtaining the difference value between the test signal of the user and the signal to be tested to obtain a deviation parameter, and multiplying the deviation parameter by the average variance value to obtain the reference variance value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010254734.8A CN111432421B (en) | 2020-04-02 | 2020-04-02 | Synchronous test method for multiple tested terminals of 5G communication test instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010254734.8A CN111432421B (en) | 2020-04-02 | 2020-04-02 | Synchronous test method for multiple tested terminals of 5G communication test instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111432421A CN111432421A (en) | 2020-07-17 |
| CN111432421B true CN111432421B (en) | 2024-03-15 |
Family
ID=71550547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010254734.8A Active CN111432421B (en) | 2020-04-02 | 2020-04-02 | Synchronous test method for multiple tested terminals of 5G communication test instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111432421B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010068129A (en) * | 2001-04-25 | 2001-07-13 | 구제길 | Method for iterative cancellation of interference-signals due to multiuser access in a code-division-multiple-access system |
| WO2011008060A2 (en) * | 2009-07-17 | 2011-01-20 | Samsung Electronics Co., Ltd. | Method for user pairing test |
| CN106301622A (en) * | 2016-08-31 | 2017-01-04 | 深圳天珑无线科技有限公司 | Interference detection method and interference detection system |
| CN106385300A (en) * | 2016-08-31 | 2017-02-08 | 上海交通大学 | Uplink NOMA power distribution method based on dynamic decoding SIC receiver |
| CN106559276A (en) * | 2015-09-25 | 2017-04-05 | 中国移动通信集团公司 | A kind of throughput testing approach and device of multiple terminals |
| CN106790903A (en) * | 2017-03-24 | 2017-05-31 | 北京奇虎科技有限公司 | A kind of anti-interference test device of mobile terminal and its method of testing |
| CN107819442A (en) * | 2016-09-14 | 2018-03-20 | 罗德施瓦兹两合股份有限公司 | System for the method for calibration input circuit and for calibration input circuit |
| CN108134759A (en) * | 2017-12-25 | 2018-06-08 | 南京邮电大学 | A kind of non-orthogonal multiple cut-in method based on interference cancellation technology |
| CN108521668A (en) * | 2018-02-06 | 2018-09-11 | 大唐高鸿信息通信研究院（义乌）有限公司 | Water injection power suitable for 5G network N OMA systems distributes optimization method |
| CN108900263A (en) * | 2018-05-25 | 2018-11-27 | 宁波大学 | The preparation method of safe unicast rate model for downlink NOMA Communication System Design |
| CN109743768A (en) * | 2018-12-26 | 2019-05-10 | 南京邮电大学 | Bi-directional relaying communication plan based on non-orthogonal multiple access technology |
| CN109889285A (en) * | 2017-12-06 | 2019-06-14 | 大唐移动通信设备有限公司 | A kind of multi-user test method and device |
| CN110798299A (en) * | 2019-11-08 | 2020-02-14 | 重庆邮电大学 | Multi-user random access preamble detection method based on serial interference cancellation |
| WO2020049350A1 (en) * | 2018-09-08 | 2020-03-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Discrete power allocation for non-orthogonal multiple access systems |
| WO2020050543A1 (en) * | 2018-09-04 | 2020-03-12 | 주식회사 이노와이어리스 | Device and method for cancelling interference component, for testing multi-antenna wireless device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5833502B2 (en) * | 2012-06-04 | 2015-12-16 | 株式会社アドバンテスト | Test program |
-
2020
- 2020-04-02 CN CN202010254734.8A patent/CN111432421B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010068129A (en) * | 2001-04-25 | 2001-07-13 | 구제길 | Method for iterative cancellation of interference-signals due to multiuser access in a code-division-multiple-access system |
| WO2011008060A2 (en) * | 2009-07-17 | 2011-01-20 | Samsung Electronics Co., Ltd. | Method for user pairing test |
| CN106559276A (en) * | 2015-09-25 | 2017-04-05 | 中国移动通信集团公司 | A kind of throughput testing approach and device of multiple terminals |
| CN106301622A (en) * | 2016-08-31 | 2017-01-04 | 深圳天珑无线科技有限公司 | Interference detection method and interference detection system |
| CN106385300A (en) * | 2016-08-31 | 2017-02-08 | 上海交通大学 | Uplink NOMA power distribution method based on dynamic decoding SIC receiver |
| CN107819442A (en) * | 2016-09-14 | 2018-03-20 | 罗德施瓦兹两合股份有限公司 | System for the method for calibration input circuit and for calibration input circuit |
| CN106790903A (en) * | 2017-03-24 | 2017-05-31 | 北京奇虎科技有限公司 | A kind of anti-interference test device of mobile terminal and its method of testing |
| CN109889285A (en) * | 2017-12-06 | 2019-06-14 | 大唐移动通信设备有限公司 | A kind of multi-user test method and device |
| CN108134759A (en) * | 2017-12-25 | 2018-06-08 | 南京邮电大学 | A kind of non-orthogonal multiple cut-in method based on interference cancellation technology |
| CN108521668A (en) * | 2018-02-06 | 2018-09-11 | 大唐高鸿信息通信研究院（义乌）有限公司 | Water injection power suitable for 5G network N OMA systems distributes optimization method |
| CN108900263A (en) * | 2018-05-25 | 2018-11-27 | 宁波大学 | The preparation method of safe unicast rate model for downlink NOMA Communication System Design |
| WO2020050543A1 (en) * | 2018-09-04 | 2020-03-12 | 주식회사 이노와이어리스 | Device and method for cancelling interference component, for testing multi-antenna wireless device |
| WO2020049350A1 (en) * | 2018-09-08 | 2020-03-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Discrete power allocation for non-orthogonal multiple access systems |
| CN109743768A (en) * | 2018-12-26 | 2019-05-10 | 南京邮电大学 | Bi-directional relaying communication plan based on non-orthogonal multiple access technology |
| CN110798299A (en) * | 2019-11-08 | 2020-02-14 | 重庆邮电大学 | Multi-user random access preamble detection method based on serial interference cancellation |
Non-Patent Citations (5)
| Title |
|---|
| Multi-user detection in optical wireless communication;Federica Aveta et al.;《2019 15th International Wireless Communications & Mobile Computing Conference (IWCMC)》;20190722;全文 * |
| NOMA based 5G NR for PTM Communications;E. Iradier et al.;《2019 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB)》;全文 * |
| Resource Allocation for Energy Harvesting-Powered D2D Communications Underlaying NOMA-Based Networks;Bo Chen et al.;《IEEE Access》;全文 * |
| 全双工协作多播业务在NOMA系统中的应用和性能;汪巧 等;《电信科学》;全文 * |
| 移动通信测试技术进展与挑战;张治中 等;《数据采集与处理》;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111432421A (en) | 2020-07-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9271158B2 (en) | Automatic configuration sub-system for distributed antenna systems | |
| US7826851B2 (en) | Channel quality signaling | |
| KR101645984B1 (en) | System and method for indication of contiguous resource allocations in ofdm-based systems | |
| RU2718741C2 (en) | Transmission device and transmission method | |
| CN113891460A (en) | PPDU transmission method and related device | |
| JP2023526108A (en) | Null data packet announcement frame transmission method and related apparatus | |
| CA2646693C (en) | Method and system for subband indicator signalling | |
| JP2018518877A (en) | Resource designation method and apparatus for WLAN system | |
| US5894498A (en) | Method and apparatus for analyzing a composite carrier signal | |
| KR102287792B1 (en) | Hybrid Beamforming Based on Low-Complexity RF Precoder in mmWave Massive MIMO-NOMA Systems | |
| CN111432421B (en) | Synchronous test method for multiple tested terminals of 5G communication test instrument | |
| CN112689308B (en) | Multi-user wireless data transmission method, system, device and storage medium | |
| CN102316596B (en) | Control station and method for scheduling resource block | |
| US8179843B2 (en) | Distributed scheduling method for multi-antenna wireless system | |
| US11700547B2 (en) | Method and device for transmitting/receiving signal in wireless communication system | |
| CN108271209A (en) | A kind of resource selection method, terminal and base station | |
| Hou et al. | Modeling and predictability analysis on channel spectrum status over heavy wireless lan traffic environment | |
| CN103002583A (en) | Wireless communication device and wireless communication system | |
| CN113810914A (en) | User pairing method of user separation type uplink non-orthogonal multiple access technology | |
| CN108418615B (en) | User scheduling method based on MU-MIMO limited feedback system | |
| CN114223151A (en) | Wireless communication device and wireless communication method | |
| CN102170655A (en) | Method and system for testing joint detection performance of wireless terminal | |
| US10340998B2 (en) | Channel state information obtaining method and device | |
| CN102595468B (en) | For sending resource allocation methods and the device of detection reference signal | |
| CN115085781B (en) | MIMO IC chain interference alignment method based on maximum independent set |
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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220711 Address after: 315000 Fenghua Road, Jiangbei District, Ningbo, Zhejiang Province, No. 818 Applicant after: Ningbo University Applicant after: Ningbo Aodi Internet Technology Co.,Ltd. Address before: 315000 Room 101, building 4, No. 8, Baoma street, Jiangbei District, Ningbo City, Zhejiang Province Applicant before: Ningbo Aodi Internet Technology Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |