CN105282766B - Simulate the method and system simulator of the access distance of terminal and base station - Google Patents
Simulate the method and system simulator of the access distance of terminal and base station Download PDFInfo
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- CN105282766B CN105282766B CN201410331340.2A CN201410331340A CN105282766B CN 105282766 B CN105282766 B CN 105282766B CN 201410331340 A CN201410331340 A CN 201410331340A CN 105282766 B CN105282766 B CN 105282766B
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- data frame
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Abstract
The present invention provides the method and system simulators of terminal and the access distance of base station in a kind of simulation testing protocol consistency, this method comprises: system simulator postpones to send downlink data frame to terminal after downlink duration from the sending instant for the downlink data frame eated dishes without rice or wine, so that the terminal is at the time of basis receives the downlink data frame after receiving the downlink data frame and Timing Advance TA determines the time for sending uplink data frames, wherein, the downlink duration is the period determined according to the TA in test case.The method and system simulator provided through the invention, can reduce the complexity of test process.
Description
Technical field
The present invention relates to field of communication technology more particularly to it is a kind of simulation terminal and base station access distance method and be
System simulator.
Background technique
In general, consensus standard is to realize that personnel may for the different understanding of agreement using natural language description
It will lead to different protocol realizations, or even the realization of mistake occur.Therefore, it is necessary to a kind of effective method come to protocol realization into
Row differentiates, realizes the equivalence with consensus standard with indentification protocol, here it is protocol tests.Protocol test is a kind of black box survey
Examination, it carrys out the external behavior of controlled observation test protocol realization according to consensus standard, then tests tested protocol realization.
There are mainly four types of protocol tests: interoperability testing, performance test, robustness test and uniformity test.Wherein, consistency is surveyed
Examination is a kind of functional test, and the essence of uniformity test is under certain network environment, using one group of cycle tests to tested
Protocol realization is tested, and determines agreement to be measured by comparing the similarities and differences of the reality output and anticipated output that are tested protocol realization
Consistent, establishment success rate in interconnection by the tested protocol realization of uniformity test is described in much programs with standard
Just.
In the prior art, when carrying out LTE (Long Term Evolution, long term evolution) testing protocol consistency, it is
System simulator and terminal generally use wired mode it is direct-connected access or using wireless mode zero distance position access, because terminal away from
Closer from system simulator, TA (Time Advanced, Timing Advance) is 0, and in order to comprehensively be tested, agreement is consistent
Property test in, need to test the non-zero situation of TA, that is, need to simulate the remote scene of terminal and base station.In existing measuring technology
It is mainly tested by the way of increasing channel simulator come the scene non-zero to TA, to test different TA, then
Need to reset channel simulator.
As can be seen from the above description, needing to increase for the non-zero scene of TA when carrying out testing protocol consistency in the prior art
Add channel simulator, when needing to be adjusted TA, needs to reset channel simulator, test process is complicated.
Summary of the invention
The present invention provides the method and system simulators of a kind of simulation terminal and the access distance of base station, can reduce survey
The complexity of examination process.
The present invention provides a kind of methods of terminal and the access distance of base station in simulation testing protocol consistency, comprising:
System simulator postpones to send downlink to terminal after downlink duration from the sending instant for the downlink data frame eated dishes without rice or wine
Data frame so that the terminal after receiving the downlink data frame according to receive the downlink data frame at the time of and when
Between lead TA determine send uplink data frames time, wherein the downlink duration be according in test case TA determine
Period out.
Further, system simulator postpones after downlink duration from the sending instant for the downlink data frame eated dishes without rice or wine to terminal
Send downlink data frame, comprising:
System simulator reduces the transmission timing lead of preset baseband processing unit after the downlink duration to institute
It states terminal and sends downlink data frame.
Further, system simulator postpones after downlink duration from the sending instant for the downlink data frame eated dishes without rice or wine to terminal
Send downlink data frame, comprising:
System simulator will send downlink data frame to the terminal after the preset optical-fiber time-delay reduction downlink duration.
Further, a length of 16TA*Ts when the downlink, wherein the Ts is that basic time as defined in agreement to be measured is single
Position.
Further, the time for sending uplink data frames are as follows:
(the 16TA+N in advance from the time of receiving the downlink data frameTA offset) * Ts, wherein the Ts is to be measured
Basic time unit as defined in agreement, the NTA offsetFor TA deviant as defined in agreement to be measured.
On the other hand, the present invention provides a kind of system simulator, the system simulator, the lower line numbers for eating dishes without rice or wine certainly
According to frame sending instant rise delay downlink duration after to terminal send downlink data frame so that the terminal receive it is described under
After row data frame according at the time of receiving the downlink data frame and Timing Advance TA determine send uplink data frames when
Between, wherein the downlink duration is the period determined according to the TA in test case.
Further, the system simulator, is specifically used for
It will be sent after the transmission timing lead reduction downlink duration of preset baseband processing unit to the terminal
Downlink data frame.
Further, the system simulator, is specifically used for
Downlink data frame will be sent to the terminal after the preset optical-fiber time-delay reduction downlink duration.
Further, a length of 16TA*Ts when the downlink, wherein the Ts is that basic time as defined in agreement to be measured is single
Position.
Further, the time for sending uplink data frames are as follows:
(16TA+624) the * Ts in advance from the time of receiving the downlink data frame, wherein the Ts is agreement to be measured
Defined basic time unit, the NTA offsetFor TA deviant as defined in agreement to be measured.
A kind of method and system simulator of the access distance of the simulation terminal and base station that provide through the invention, is carrying out
When testing protocol consistency, the access distance of terminal and base station is simulated by postponing the sending time of downlink data frame, is not required to
Increase additional equipment, when to test the different access distances of terminal and base station, only TA need to be allocated to system
Simulator, system simulator are automatically adaptively adjusted downlink duration, can reduce the complexity of test process.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the uplink synchronous schematic illustration that one embodiment of the invention provides；
Fig. 2 is the access distance of terminal and base station in a kind of simulation testing protocol consistency of one embodiment of the invention offer
Method flow diagram；
Fig. 3 is a kind of transmission schematic diagram for data frame that one embodiment of the invention provides.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments, based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
It when carrying out testing protocol consistency in the prior art, needs to increase channel simulator for the non-zero scene of TA, need
When being adjusted to TA, channel simulator is needed to reset, the process of testing protocol consistency is complicated, in order to reduce test
The complexity of process, the embodiment of the present invention provide a kind of mould according to the principle of uplink synchronous in physical channel and modulation protocol
The method of terminal and the access distance of base station in quasi- testing protocol consistency.
Wherein, uplink synchronous principle is specific as follows:
After terminal and base station complete down-going synchronous, terminal determines uplink duration according to the TA that base station is sent, and terminal is certainly
The sending instant of preset uplink data frames plays uplink duration in advance and sends uplink data frames, and when uplink, a length of terminal was according to base station
The period that the TA sent is determined.Specifically, a length of (16TA+N when uplinkTA offset) * Ts, wherein TA=0,1,
2,1282, the NTA offsetFor TA deviant as defined in agreement to be measured, Ts is basic time as defined in agreement to be measured
Unit.Uplink synchronous schematic illustration is shown referring to Fig. 1, Fig. 1.
It is connect for system simulator and terminal using the direct-connected access of wired mode or using wireless mode zero distance position
The scene entered, Fig. 2 shows a kind of method of terminal and the access distance of base station in simulation testing protocol consistency, the methods
Include:
Step 201: system simulator postpones after downlink duration from the sending instant for the downlink data frame eated dishes without rice or wine to terminal
Downlink data frame is sent, so that terminal basis after receiving the downlink data frame receives the downlink data frame
Moment and TA determine the time for sending uplink data frames, wherein the downlink duration is to be determined according to the TA in test case
Period.
Wherein, in the method for above-described embodiment, when the system simulator and the terminal follow identical ascending idle port
It carves, can guarantee that system simulator is properly received uplink data frames.TA in terminal can be sent by system simulator
To terminal, can also directly be pre-configured with to terminal.
System simulator in the present embodiment is the equipment for being used to anolog base station in testing protocol consistency.
Method in above-described embodiment, when carrying out testing protocol consistency, by postpone downlink data frame transmission when
Between simulate the access distance of terminal and base station, do not need to increase additional equipment, when accessing terminal and the different of base station
When distance is tested, TA need to be only allocated to system simulator, system simulator carries out adaptability tune to downlink duration automatically
It is whole, it can reduce the complexity of test process.
In addition, can also include the steps that being not shown in the figure 202 after step 201:
Step 202: system simulator receives the terminal and is sent out according to the time for the transmission uplink data frames determined
The uplink data frames sent.
In a particular application, system simulator includes baseband processing unit and radio-frequency module, and above-described embodiment may be used also as a result,
It is in turn, above-mentioned to postpone the sending time of downlink data frame by the transmission timing lead for reducing baseband processing unit
Step 201 may include sub-step 2011 not shown in the figure:
Step 2011: when the transmission timing lead of preset baseband processing unit is reduced the downlink by system simulator
Downlink data frame is sent to the terminal after length.
In another possible implementation, when in system simulator baseband processing unit and radio-frequency module pass through optical fiber
When connection, the transmission timing lead of baseband processing unit can be adjusted by reducing optical-fiber time-delay, as a result, aforementioned step
201 may also include following sub-steps not shown in the figure:
Step 2011a: system simulator will be sent after the preset optical-fiber time-delay reduction downlink duration to the terminal
Downlink data frame.
For example, in the present embodiment according to the regulation in physical channel and modulation protocol, when downlink a length of 16TA*Ts,
Wherein, the Ts is basic time unit as defined in agreement to be measured.
Correspondingly, the time for the transmission uplink data frames that terminal is determined in abovementioned steps 201 can are as follows: from reception
(16TA+N in advance from the time of to the downlink data frameTA offset)×Ts, wherein the Ts is base as defined in agreement to be measured
This chronomere, the NTA offsetFor TA deviant as defined in agreement to be measured, wherein in FDD (Frequency Division
Duplexing, frequency division duplex) in the case of, NTA offset=0, at TDD (Time Division Duplexing, time division duplex)
In the case of, NTA offset=624.
Currently, in system simulator and direct-connected terminal, TA above-mentioned is 0, however, be the case where test TA is not 0, it is existing
There is the method in technology to need that channel simulator is arranged, so that test process is complicated, and use method provided by the above embodiment,
Such as postpone the sending time of downlink data frame, test process can be simplified.
In addition, Fig. 3 shows the transmission schematic diagram of one of embodiment of the present invention data frame, wherein the dotted line in Fig. 3
In the case that part indicates that TA is 0, the transmission schematic diagram of data frame, in the case that the bold portion in Fig. 3 indicates that TA is not 0,
The transmission schematic diagram of data frame.
According to another aspect of the present invention, the present invention also provides a kind of system simulator, the system simulators, for certainly
Downlink data frame is sent to terminal after a sending instant for the downlink data frame eated dishes without rice or wine delay downlink duration, so that the terminal exists
It determines with TA according at the time of receiving the downlink data frame after receiving the downlink data frame and sends uplink data frames
Time, wherein the downlink duration is the period determined according to the TA in test case.
In a kind of possible embodiment, the system simulator can be specifically used for preset baseband processing unit
Downlink data frame is sent to the terminal after the transmission timing lead reduction downlink duration.
In alternatively possible embodiment, the system simulator can also be specifically used for subtracting preset optical-fiber time-delay
Downlink data frame is sent to the terminal after the small downlink duration.
In a particular application, downlink duration above-mentioned can be 16TA*Ts, wherein the Ts is base as defined in agreement to be measured
This chronomere.The time for sending the uplink data frames are as follows: (16TA in advance from the time of receiving the downlink data frame
+ 624) * Ts, wherein the Ts is basic time unit as defined in agreement to be measured, the NTA offsetFor as defined in agreement to be measured
TA deviant.
The contents such as the information exchange between each unit, sub-unit, implementation procedure in above equipment, due to side of the present invention
Method embodiment is based on same design, and for details, please refer to the description in the embodiment of the method for the present invention, and details are not described herein again.
It should be noted that, in this document, such as first and second etc relational terms are used merely to an entity
Or operation is distinguished with another entity or operation, is existed without necessarily requiring or implying between these entities or operation
Any actual relationship or order.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-
It is exclusive to include, so that the process, method, article or equipment for including a series of elements not only includes those elements,
It but also including other elements that are not explicitly listed, or further include solid by this process, method, article or equipment
Some elements.In the absence of more restrictions, the element limited by sentence " including one ", is not arranged
Except there is also other identical factors in the process, method, article or apparatus that includes the element.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can store in computer-readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
In the various media that can store program code such as disk.
Finally, it should be noted that the foregoing is merely presently preferred embodiments of the present invention, it is merely to illustrate skill of the invention
Art scheme, is not intended to limit the scope of the present invention.Any modification for being made all within the spirits and principles of the present invention,
Equivalent replacement, improvement etc., are included within the scope of protection of the present invention.
Claims (10)
1. a kind of method of terminal and the access distance of base station in simulation testing protocol consistency characterized by comprising
System simulator postpones to send downlink data to terminal after downlink duration from the sending instant for the downlink data frame eated dishes without rice or wine
Frame, so that the terminal is being mentioned according at the time of receiving the downlink data frame with the time after receiving the downlink data frame
Preceding amount TA determines the time for sending uplink data frames, wherein the downlink duration is to be determined according to the TA in test case
Period；
System simulator is the equipment for being used to anolog base station in testing protocol consistency.
2. the method according to claim 1, wherein system simulator is from when the transmission for the downlink data frame eated dishes without rice or wine
It has carved and has sent downlink data frame to terminal after postponing downlink duration, comprising:
System simulator reduces the transmission timing lead of preset baseband processing unit after the downlink duration to the end
End sends downlink data frame.
3. according to the method described in claim 2, it is characterized in that, system simulator is from when the transmission for the downlink data frame eated dishes without rice or wine
It has carved and has sent downlink data frame to terminal after postponing downlink duration, comprising:
System simulator will send downlink data frame to the terminal after the preset optical-fiber time-delay reduction downlink duration.
4. method according to claim 1 to 3, which is characterized in that a length of 16TA*Ts when the downlink, wherein
The Ts is basic time unit as defined in agreement to be measured.
5. according to the method described in claim 4, it is characterized in that, the time for sending uplink data frames are as follows:
(the 16TA+N in advance from the time of receiving the downlink data frameTA offset) * Ts, wherein the Ts is agreement to be measured
Defined basic time unit, the NTA offsetFor TA deviant as defined in agreement to be measured.
6. a kind of system simulator, which is characterized in that
The system simulator, for being sent after the delay downlink duration from the sending instant for the downlink data frame eated dishes without rice or wine to terminal
Downlink data frame, so that the terminal is at the time of after receiving the downlink data frame according to the downlink data frame is received
The time for sending uplink data frames is determined with Timing Advance TA, wherein the downlink duration is according to the TA in test case
The period determined；
System simulator is the equipment for being used to anolog base station in testing protocol consistency.
7. system simulator according to claim 6, which is characterized in that the system simulator is specifically used for
Downlink will be sent to the terminal after the transmission timing lead reduction downlink duration of preset baseband processing unit
Data frame.
8. system simulator according to claim 7, which is characterized in that the system simulator is specifically used for
Downlink data frame will be sent to the terminal after the preset optical-fiber time-delay reduction downlink duration.
9. according to system simulator as claimed in claim 6 to 8, which is characterized in that a length of 16TA*Ts when the downlink,
In, the Ts is basic time unit as defined in agreement to be measured.
10. system simulator according to claim 9, which is characterized in that the time for sending uplink data frames are as follows:
(the 16TA+N in advance from the time of receiving the downlink data frameTA offset) * Ts, wherein the Ts is agreement to be measured
Defined basic time unit, the NTA offsetFor TA deviant as defined in agreement to be measured.
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| CN201410331340.2A CN105282766B (en) | 2014-07-11 | 2014-07-11 | Simulate the method and system simulator of the access distance of terminal and base station |
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| CN201410331340.2A CN105282766B (en) | 2014-07-11 | 2014-07-11 | Simulate the method and system simulator of the access distance of terminal and base station |
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| CN105282766A CN105282766A (en) | 2016-01-27 |
| CN105282766B true CN105282766B (en) | 2019-03-15 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105657740B (en) * | 2016-01-29 | 2019-06-25 | 中国联合网络通信集团有限公司 | Terminal test method, user terminal, server and system |
| CN109526004B (en) * | 2018-07-27 | 2022-05-10 | 大唐联仪科技有限公司 | Narrowband Internet of things sequence testing method and device |
| CN111465050A (en) * | 2019-01-21 | 2020-07-28 | 华为技术有限公司 | Uplink transmission method and device |
| CN114698092B (en) * | 2022-02-21 | 2023-11-21 | 杭州永谐科技有限公司 | TDD test method capable of automatically adjusting time delay and advance |
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| CN101400077A (en) * | 2007-09-24 | 2009-04-01 | 中兴通讯股份有限公司 | Signal simulating device and method used in time preact test |
| CN101572577A (en) * | 2008-04-30 | 2009-11-04 | 大唐移动通信设备有限公司 | Method and device for achieving timing advance of uplink transmission |
| JP2010010911A (en) * | 2008-06-25 | 2010-01-14 | Anritsu Corp | Test device and method for mobile phone terminal |
| JP2010098650A (en) * | 2008-10-20 | 2010-04-30 | Anritsu Corp | Phasing simulator and wireless communication device test system |
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2014
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101400077A (en) * | 2007-09-24 | 2009-04-01 | 中兴通讯股份有限公司 | Signal simulating device and method used in time preact test |
| CN101572577A (en) * | 2008-04-30 | 2009-11-04 | 大唐移动通信设备有限公司 | Method and device for achieving timing advance of uplink transmission |
| JP2010010911A (en) * | 2008-06-25 | 2010-01-14 | Anritsu Corp | Test device and method for mobile phone terminal |
| JP2010098650A (en) * | 2008-10-20 | 2010-04-30 | Anritsu Corp | Phasing simulator and wireless communication device test system |
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