CN104090283B - A kind of method and apparatus generating framing signal - Google Patents
A kind of method and apparatus generating framing signal Download PDFInfo
- Publication number
- CN104090283B CN104090283B CN201410305113.2A CN201410305113A CN104090283B CN 104090283 B CN104090283 B CN 104090283B CN 201410305113 A CN201410305113 A CN 201410305113A CN 104090283 B CN104090283 B CN 104090283B
- Authority
- CN
- China
- Prior art keywords
- navigation message
- spreading code
- signal
- navigation
- communication
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/08—Systems for determining direction or position line
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of method and apparatus generating framing signal, belong to communication technical field.The method includes：Obtain signal of communication；Obtain navigation information, and navigation information is encoded, obtain navigation message；Generate spreading code, and band spectrum modulation is carried out according to spreading code to navigation message, generate navigation message spreading code；Each 10 milliseconds of radio frames alignment by the every bit navigation message Information And Communication signal in navigation message spreading code；Every bit navigation message information in navigation message spreading code is added in the corresponding 10 milliseconds of radio frames of every bit navigation message information in signal of communication respectively, obtains framing signal.This device includes：First acquisition module, the second acquisition module, the first generation module, alignment module, and the second generation module.Present invention communication and navigation do not interfere with each other, and that is, user also can carry out wide area hi-Fix using mobile phone while being communicated.
Description
Technical field
The present invention relates to communication technical field, particularly to a kind of method and apparatus generating framing signal.
Background technology
In recent years, the increase of the progress of wireless communication technology and positioning service demand, has promoted sending out of location technology energetically
Exhibition, to indoor and outdoor, pinpoint demand also grows with each passing day people, particularly in reply in emergency circumstances, is accurately positioned even more aobvious
Obtain particularly important.Therefore, how to generate framing signal, and to carry out positioning by this framing signal be the emphasis of industry research.
In prior art, location technology is mainly satellite positioning tech, is by satellite-signal pair in this satellite positioning tech
Terminal is positioned, also will satellite-signal as framing signal.
During realizing the present invention, inventor finds that prior art at least has problems with：
Because satellite-signal can not cover all places, such as in valley or indoor etc.；Lead to can't accept satellite
The place of signal cannot be positioned by satellite-signal.
Content of the invention
In order to solve problem of the prior art, the invention provides a kind of method and apparatus generating framing signal.Described
Technical scheme is as follows：
On the one hand, the invention provides a kind of method generating framing signal, methods described includes：
Obtain signal of communication；
Obtain navigation information, and described navigation information is encoded, obtain navigation message；
Generate spreading code, and band spectrum modulation is carried out according to described spreading code to described navigation message, generate navigation message and expand
Frequency code；
By the every bit navigation message information in described navigation message spreading code and described signal of communication each 10 milliseconds
Radio frames are alignd, and obtain 10 in the corresponding described signal of communication of every bit navigation message information in described navigation message spreading code
Millisecond radio frames；
Every bit navigation message information in described navigation message spreading code is added in described signal of communication respectively
In the corresponding 10 milliseconds of radio frames of described every bit navigation message information, obtain framing signal.
Preferably, methods described also includes：
Communication and navigation integration signal is generated according to described framing signal and described signal of communication, and sends described communication and lead
Boat integration signal gives described terminal, so that described terminal is positioned according to described communication and navigation integration signal.
Preferably, described generation spreading code, including：
Select generator polynomial；
Generate pseudo-random PN sequence with the generator polynomial of described selection；
Different described PN sequences is carried out mould two addition, obtains spreading code.
Preferably, described according to described spreading code, described navigation message is carried out with band spectrum modulation, generate navigation message spread spectrum
Code, including：
Select the spreading code in the first numerical value cycle；
Select the navigation message of second value bit, described first numerical value is ten times of described second value；
Modulate the navigation message of described selection with the spreading code of described selection, generate navigation message spreading code.
Preferably, described every bit navigation message information in described navigation message spreading code is added to respectively described logical
In the corresponding 10 milliseconds of radio frames of described every bit navigation message information in letter signal, obtain framing signal, including：
The power of described navigation message spreading code is reduced, the navigation message spreading code after being reduced；
Every bit navigation message information in navigation message spreading code after described reduction is added to described communication respectively
In the corresponding 10 milliseconds of radio frames of described every bit navigation message information in signal, obtain framing signal.
On the other hand, the invention provides a kind of device generating framing signal, described device includes：
First acquisition module, for obtaining signal of communication；
Second acquisition module, for obtaining navigation information, and encodes to described navigation information, obtains navigation message；
First generation module, for generating spreading code, and carries out spread spectrum tune according to described spreading code to described navigation message
System, generates navigation message spreading code；
Alignment module, for by the every bit navigation message information in described navigation message spreading code and described signal of communication
Each 10 milliseconds of radio frames alignment, the every bit navigation message information correspondence obtaining in described navigation message spreading code is described logical
10 milliseconds of radio frames in letter signal；
Second generation module, for being added to the every bit navigation message information in described navigation message spreading code respectively
In the corresponding 10 milliseconds of radio frames of described every bit navigation message information frame in described signal of communication, obtain framing signal.
Preferably, described device also includes：
Sending module, for communication and navigation integration signal is generated according to described framing signal and described signal of communication, and
Send described communication and navigation integration signal to described terminal, so that described terminal is carried out according to described communication and navigation integration signal
Positioning.
Preferably, described first generation module, including：
First choice unit, for selecting generator polynomial；
First signal generating unit, for generating pseudo-random PN sequence with the generator polynomial of described selection；
Second signal generating unit, for different described PN sequences is carried out mould two addition, obtains spreading code.
Preferably, described first generation module, including：
Second select unit, for selecting the spreading code in the first numerical value cycle；
3rd select unit, for selecting the navigation message of second value bit, described first numerical value is described second number
Ten times of value；
3rd signal generating unit, for modulating the navigation message of described selection with the spreading code of described selection, generates navigation electricity
Civilian spreading code.
Preferably, described second generation module, including：
Reduce unit, the navigation message spread spectrum for reducing the power of described navigation message spreading code, after being reduced
Code；
Superpositing unit, for folding the every bit navigation message information in the navigation message spreading code after described reduction respectively
It is added in the corresponding 10 milliseconds of radio frames of described bit navigation message information in described signal of communication, obtain framing signal.
In embodiments of the present invention, obtain signal of communication；Obtain navigation information, and navigation information is encoded, obtain
Navigation message；Generate spreading code, and band spectrum modulation is carried out according to spreading code to navigation message, generate navigation message spreading code；Will
10 milliseconds of radio frames alignment of each of every bit navigation message Information And Communication signal in navigation message spreading code, are navigated
10 milliseconds of radio frames in the corresponding signal of communication of every bit navigation message information in text spreading code；By navigation message spreading code
In every bit navigation message information be added to respectively the corresponding 10 milliseconds of nothings of every bit navigation message information in signal of communication
On line frame, obtain framing signal.The present invention can realize signal of communication and navigation signal does not interfere with each other, and that is, user is using mobile phone
Also wide area hi-Fix can be carried out while communication.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, will make to required in embodiment description below
Accompanying drawing be briefly described it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of method flow diagram of generation framing signal that the embodiment of the present invention 1 provides；
Fig. 2 is a kind of method flow diagram of generation framing signal that the embodiment of the present invention 2 provides；
Fig. 3 is a kind of apparatus structure schematic diagram of generation framing signal that the embodiment of the present invention 3 provides.
Specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment 1
Referring to Fig. 1, embodiments provide a kind of method generating framing signal, including：
Step 101：Obtain signal of communication；
Step 102：Obtain navigation information, and navigation information is encoded, obtain navigation message；
Step 103：Generate spreading code, and band spectrum modulation is carried out according to spreading code to navigation message, generate navigation message and expand
Frequency code；
Step 104：By the every bit navigation message Information And Communication signal in navigation message spreading code each 10 milliseconds
Radio frames are alignd, and 10 milliseconds obtained in the corresponding signal of communication of every bit navigation message information in navigation message spreading code wireless
Frame；
Step 105：Every bit navigation message information in navigation message spreading code is added in signal of communication respectively
In every corresponding 10 milliseconds of radio frames of bit navigation message information, obtain framing signal.
Preferably, method also includes：
Communication and navigation integration signal is generated according to framing signal and signal of communication, and sends communication and navigation integration signal
To terminal, terminal is made to be positioned according to communication and navigation integration signal.
Preferably, generate spreading code, including：
Select generator polynomial；
Generate pseudo-random PN sequence with the generator polynomial selecting；
Different PN sequences is carried out mould two addition, obtains spreading code.
Preferably, band spectrum modulation is carried out according to spreading code to navigation message, generate navigation message spreading code, including：
Select the spreading code in the first numerical value cycle；
Select the navigation message of second value bit, the first numerical value is ten times of second value；
Modulate the navigation message of selection with the spreading code selecting, generate navigation message spreading code.
Preferably, the every bit navigation message information in navigation message spreading code is added to respectively every in signal of communication
In the corresponding 10 milliseconds of radio frames of bit navigation message information, obtain framing signal, including：
The power of navigation message spreading code is reduced, the navigation message spreading code after being reduced；
Every bit navigation message information in navigation message spreading code after reducing is added in signal of communication respectively
In every corresponding 10 milliseconds of radio frames of bit navigation message information, obtain framing signal.
Obtain signal of communication；Obtain navigation information, and navigation information is encoded, obtain navigation message；Generate spread spectrum
Code, and band spectrum modulation is carried out according to spreading code to navigation message, generate navigation message spreading code；By in navigation message spreading code
10 milliseconds of radio frames alignment of each of every bit navigation message Information And Communication signal, obtain in navigation message spreading code often than
10 milliseconds of radio frames in the corresponding signal of communication of special navigation message information；By the every bit navigation message in navigation message spreading code
Information is added in the corresponding 10 milliseconds of radio frames of every bit navigation message information in signal of communication respectively, obtains positioning letter
Number.The present invention can realize signal of communication and navigation signal does not interfere with each other, and that is, user is while being communicated using mobile phone
Wide area hi-Fix can be carried out.
Embodiment 2
Embodiments provide a kind of method generating framing signal, the executive agent of the method is base station, referring to
Fig. 2, including：
Step 201：Obtain signal of communication；
Specifically, this base station obtains signal of communication from LTE (Long Term Evolution, Long Term Evolution) base station.
Wherein, this base station is navigation integrated base station；This signal of communication can for LTE (Long Term Evolution,
Long Term Evolution) signal of communication etc., in embodiments of the present invention signal of communication is not especially limited.The nothing of this LTE communication signal
Line frame is 10ms.Radio frames include 10 wireless sub-frames, namely each wireless sub-frame is 1ms.
Step 202：Obtain navigation information, and navigation information is encoded, obtain navigation message；
Specifically, obtain navigation information, and navigation information is encoded, by leading of arranging according to form set in advance
Boat information is converted into 0 and 1 bit stream, arranges above-mentioned navigation information according to form set in advance, obtains navigation message.
In embodiments of the present invention, navigation message includes synchronous head, base station number, the longitude of base station, the dimension of base station, base
Height, barometric altimeter setting height(from bottom), barometric leveling update information, neighbor base station information and/or the CRC (Cyclic standing
Redundancy Check, CRC) etc..
Wherein, synchronous head is used for judging the original position of a frame navigation message.
Step 203：Generate spreading code, and band spectrum modulation is carried out according to spreading code to navigation message, generate navigation message and expand
Frequency code；
Wherein, generate spreading code can (1) to (3) realize as follows, including：
(1)：Select generator polynomial；
(2)：Generate PN (Pseudo-noise Sequence, pseudorandom) sequence with the generator polynomial selecting；
(3)：Different PN sequences is carried out mould two addition, obtains spreading code.
In embodiments of the present invention, this spreading code can be the gold code that N and spreading rate are more than 1M, wherein, N for code length
More than or equal to 511.
It it is 16383 with spreading code for code length in embodiments of the present invention and the gold code as 16.383M for the spreading rate is
Example illustrates, and in actual applications, spreading code can also be the gold code of other code lengths and other spreading rates, and such as code length is
1023 and spreading rate gold code for 20M etc..
Wherein, band spectrum modulation is carried out according to spreading code to navigation message, generate navigation message spreading code, can pass through following
Step (A) to (C) is realized, including：
(A)：Select the spreading code in the first numerical value cycle；
For example, so that the first numerical value is 10, code length is 16383 and the gold code as 16.383M for the spreading rate as a example carry out
Illustrate, in this step, the code length selecting 10 cycles is 16383 and the gold code for 16.383M for the spreading rate.
(B)：Select the navigation message of second value bit, the first numerical value is ten times of second value；
For example, the first numerical value is 10, then second value is 1, in this step, selects the navigation message of 1 bit.
(C)：Modulate the navigation message of selection with the spreading code selecting, generate navigation message spreading code.
Specifically, the spreading code selecting is multiplied with the navigation message selecting, completes band spectrum modulation, generate navigation message and expand
Frequency code.
For example, the gold code that the code length with 10 cycles is 16383 and spreading rate is 16.383M is led with 1 bit
Avionics literary composition is multiplied, and completes band spectrum modulation, generates navigation message spreading code.
Step 204：By each 10ms of the every bit navigation message Information And Communication signal in navigation message spreading code no
Line frame aligns, and obtains the 10ms radio frames in the corresponding signal of communication of every bit navigation message information in navigation message spreading code；
Wherein, the length of the every bit navigation message information in navigation message spreading code is 10ms, therefore, by navigation message
Every 10ms radio frames alignment of the every bit navigation message Information And Communication signal in spreading code, obtains navigating in current potential spreading code
The corresponding signal of communication of every bit navigation message information in 10ms radio frames.
Wherein, as a example code length being 16383 and referred to as 16383 yards of the gold code for 16.383M for the spreading rate, will
The 10ms radio frames alignment of the every bit navigation message Information And Communication signal in 16383 yards, obtains the every bit in 16383 yards
10ms radio frames in the corresponding signal of communication of navigation message information, as shown in table 1 below.
Table 1
Due to a width of 20M of the band of signal of communication, spreading code is 16383 and spreading rate is 16.383M for code length
Gold code, carries 90 percent signal energy it is sufficient to reduce spreading code, loop play should in the bandwidth of signal of communication
Spreading code is the gold code that code length is that 16383 and spreading rate are 16.383M, and the cycle of each gold code is 1ms, just with
The wireless sub-frame alignment of signal of communication.
Step 205：Every bit navigation message information in navigation message spreading code is added in signal of communication respectively
In every corresponding 10ms radio frames of bit navigation message information, obtain framing signal；
This step can be realized by following steps (1) to (2), including：
(1)：The power of navigation message spreading code is reduced, the navigation message spreading code after being reduced；
Wherein, the gain that navigation current potential spreading code sends is less than signal of communication 20dB, for ensureing spreading code not to communication
Signal produces interference, therefore, in this step, the power of navigation message spreading code is reduced, the navigation message after being reduced
Spreading code.
(2)：Every bit navigation message information in navigation message spreading code after reducing is added to signal of communication respectively
In the corresponding 10ms radio frames of every bit navigation message information on, obtain framing signal.
Wherein, this framing signal includes signal of communication and navigation signal, and signal of communication and navigation signal are not mutually done
Disturb, user can also carry out wide area hi-Fix using mobile phone while being communicated.And, this navigation signal is basis
The design of LTE communication body constitution, be the communication and navigation integration signal being suitable for LTE communication system.
Step 206：Communication and navigation integration signal is generated according to framing signal and signal of communication, and sends communication and navigation one
Body signal is to terminal.
Wherein, after generating framing signal, signal of communication and framing signal are synthesized communication and navigation integration signal by base station,
The mark of at least carried terminal in this signal of communication, the mark according to terminal sends communication and navigation integration signal to terminal.
Wherein, the mark of terminal can be GUID (Globally Unique Identifier, the globally unique mark of terminal
Know symbol), in embodiments of the present invention, the mark of terminal is not especially limited.
Step 207：Terminal receives the communication and navigation integration signal that base station sends, and according to this communication and navigation integration letter
Number the position of terminal is positioned.
Specifically, terminal receives the communication and navigation integration signal that base station sends, and according to this communication and navigation integration letter
Number the position of terminal is positioned, thus obtaining longitude and the latitude of terminal.
In embodiments of the present invention, obtain signal of communication；Obtain navigation information, and navigation information is encoded, obtain
Navigation message；Generate spreading code, and band spectrum modulation is carried out according to spreading code to navigation message, generate navigation message spreading code；Will
10 milliseconds of radio frames alignment of each of every bit navigation message Information And Communication signal in navigation message spreading code, are navigated
10 milliseconds of radio frames in the corresponding signal of communication of every bit navigation message information in text spreading code；By navigation message spreading code
In every bit navigation message information be added to respectively the corresponding 10 milliseconds of nothings of every bit navigation message information in signal of communication
On line frame, obtain framing signal.The present invention can realize signal of communication and navigation signal does not interfere with each other, and that is, user is using mobile phone
Also wide area hi-Fix can be carried out while communication.
Embodiment 3
Referring to Fig. 3, embodiments provide a kind of device generating framing signal, including：
First acquisition module 301, for obtaining signal of communication；
Second acquisition module 302, for obtaining navigation information, and encodes to navigation information, obtains navigation message；
First generation module 303, for generating spreading code, and carries out band spectrum modulation according to spreading code to navigation message, raw
Become navigation message spreading code；
Alignment module 304, for every by the every bit navigation message Information And Communication signal in navigation message spreading code
Individual 10 milliseconds of radio frames alignment, obtains 10 in the corresponding signal of communication of every bit navigation message information in navigation message spreading code
Millisecond radio frames；
Second generation module 305, for being added to the every bit navigation message information in navigation message spreading code respectively
In the corresponding 10 milliseconds of radio frames of every bit navigation message information frame in signal of communication, obtain framing signal.
Preferably, device also includes：
Sending module, for generating communication and navigation integration signal according to framing signal and signal of communication, and sends communication
Navigation integration signal, to terminal, makes terminal be positioned according to communication and navigation integration signal.
Preferably, the first generation module 303, including：
First choice unit, for selecting generator polynomial；
First signal generating unit, for generating pseudo-random PN sequence with the generator polynomial of selection；
Second signal generating unit, for different PN sequences is carried out mould two addition, obtains spreading code.
Preferably, the first generation module 303, including：
Second select unit, for selecting the spreading code in the first numerical value cycle；
3rd select unit, for selecting the navigation message of second value bit, the first numerical value is ten times of second value；
3rd signal generating unit, for modulating the navigation message of selection with the spreading code of selection, generates navigation message spreading code.
Preferably, the second generation module 305, including：
Reduce unit, for the power of navigation message spreading code is reduced, the navigation message spreading code after being reduced；
Superpositing unit, for being added to the every bit navigation message information in the navigation message spreading code after reducing respectively
In the corresponding 10 milliseconds of radio frames of bit navigation message information in signal of communication, obtain framing signal.
In embodiments of the present invention, obtain signal of communication；Obtain navigation information, and navigation information is encoded, obtain
Navigation message；Generate spreading code, and band spectrum modulation is carried out according to spreading code to navigation message, generate navigation message spreading code；Will
10 milliseconds of radio frames alignment of each of every bit navigation message Information And Communication signal in navigation message spreading code, are navigated
10 milliseconds of radio frames in the corresponding signal of communication of every bit navigation message information in text spreading code；By navigation message spreading code
In every bit navigation message information be added to respectively the corresponding 10 milliseconds of nothings of every bit navigation message information in signal of communication
On line frame, obtain framing signal.The present invention can realize signal of communication and navigation signal does not interfere with each other, and that is, user is using mobile phone
Also wide area hi-Fix can be carried out while communication.
It should be noted that：Above-described embodiment provide generations framing signal device generation framing signal when, only with
The division of above-mentioned each functional module is illustrated, and in practical application, can distribute above-mentioned functions by not as desired
With functional module complete, the internal structure of device will be divided into different functional modules, with complete described above all
Or partial function.In addition, above-described embodiment device of generation framing signal providing and the method generating framing signal are implemented
Example belongs to same design, and it implements process and refers to embodiment of the method, repeats no more here.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can pass through hardware
To complete it is also possible to the hardware being instructed correlation by program is completed, program can be stored in a kind of storage of computer-readable
In medium, storage medium mentioned above can be read only memory, disk or CD etc..
These are only presently preferred embodiments of the present invention, not in order to limit the present invention, all in the spirit and principles in the present invention
Within, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of method generating framing signal is it is characterised in that methods described includes：
Obtain signal of communication；
Obtain navigation information, and described navigation information is encoded, obtain navigation message；
Generate spreading code, and band spectrum modulation is carried out according to described spreading code to described navigation message, generate navigation message spreading code；
Every bit navigation message information in described navigation message spreading code is wireless with each 10 milliseconds of described signal of communication
Frame aligns, and obtains 10 milliseconds in the corresponding described signal of communication of every bit navigation message information in described navigation message spreading code
Radio frames；
Described in every bit navigation message information in described navigation message spreading code is added in described signal of communication respectively
In every corresponding 10 milliseconds of radio frames of bit navigation message information, obtain framing signal；
Communication and navigation integration signal is generated according to described framing signal and described signal of communication, and sends described communication and navigation one
Body signal, to terminal, makes described terminal be positioned according to described communication and navigation integration signal and communicate；
Wherein, obtain navigation information, and described navigation information is encoded, obtain navigation message, including：
Obtain navigation information, and described navigation information is encoded, the navigation information that will arrange according to form set in advance
It is converted into 0 and 1 bit stream, arrange described navigation information according to form set in advance, obtain navigation message；
Wherein, described every bit navigation message information in described navigation message spreading code is added to described signal of communication respectively
In the corresponding 10 milliseconds of radio frames of described every bit navigation message information on, obtain framing signal, including：
The power of described navigation message spreading code is reduced, the navigation message spreading code after being reduced；
Every bit navigation message information in navigation message spreading code after described reduction is added to described signal of communication respectively
In the corresponding 10 milliseconds of radio frames of described every bit navigation message information on, obtain framing signal.
2. the method for claim 1 is it is characterised in that described generation spreading code, including：
Select generator polynomial；
Generate pseudo-random PN sequence with the generator polynomial of described selection；
Different described PN sequences is carried out mould two addition, obtains spreading code.
3. the method for claim 1 is it is characterised in that described expand to described navigation message according to described spreading code
Frequency modulation system, generates navigation message spreading code, including：
Select the spreading code in the first numerical value cycle；
Select the navigation message of second value bit, described first numerical value is ten times of described second value；
Modulate the navigation message of described selection with the spreading code of described selection, generate navigation message spreading code.
4. a kind of device generating framing signal is it is characterised in that described device includes：
First acquisition module, for obtaining signal of communication；
Second acquisition module, for obtaining navigation information, and encodes to described navigation information, obtains navigation message；
First generation module, for generating spreading code, and carries out band spectrum modulation according to described spreading code to described navigation message, raw
Become navigation message spreading code；
Alignment module, for every by the every bit navigation message information in described navigation message spreading code and described signal of communication
Individual 10 milliseconds of radio frames alignment, obtains the described communication letter of every bit navigation message information correspondence in described navigation message spreading code
10 milliseconds of radio frames in number；
Second generation module, described for the every bit navigation message information in described navigation message spreading code is added to respectively
In the corresponding 10 milliseconds of radio frames of described every bit navigation message information frame in signal of communication, obtain framing signal；
Sending module, for generating communication and navigation integration signal according to described framing signal and described signal of communication, and sends
Described communication and navigation integration signal, to terminal, makes described terminal be positioned according to described communication and navigation integration signal and be led to
Letter；
Described device is additionally operable to obtain navigation information, and described navigation information is encoded, will be according to form set in advance
The navigation information of arrangement is converted into 0 and 1 bit stream, arranges described navigation information according to form set in advance, is navigated
Text；
Described second generation module, including：
Reduce unit, for the power of described navigation message spreading code is reduced, the navigation message spreading code after being reduced；
Superpositing unit, for being added to the every bit navigation message information in the navigation message spreading code after described reduction respectively
In the corresponding 10 milliseconds of radio frames of described every bit navigation message information in described signal of communication, obtain framing signal.
5. device as claimed in claim 4 is it is characterised in that described first generation module, including：
First choice unit, for selecting generator polynomial；
First signal generating unit, for generating pseudo-random PN sequence with the generator polynomial of described selection；
Second signal generating unit, for different described PN sequences is carried out mould two addition, obtains spreading code.
6. device as claimed in claim 4 is it is characterised in that described first generation module, including：
Second select unit, for selecting the spreading code in the first numerical value cycle；
3rd select unit, for selecting the navigation message of second value bit, described first numerical value is described second value
Ten times；
3rd signal generating unit, for modulating the navigation message of described selection with the spreading code of described selection, generates navigation message and expands
Frequency code.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410305113.2A CN104090283B (en) | 2014-06-30 | 2014-06-30 | A kind of method and apparatus generating framing signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410305113.2A CN104090283B (en) | 2014-06-30 | 2014-06-30 | A kind of method and apparatus generating framing signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104090283A CN104090283A (en) | 2014-10-08 |
| CN104090283B true CN104090283B (en) | 2017-03-01 |
Family
ID=51638014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410305113.2A Active CN104090283B (en) | 2014-06-30 | 2014-06-30 | A kind of method and apparatus generating framing signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104090283B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562915A (en) * | 2018-01-25 | 2018-09-21 | 扬州市职业大学 | A kind of GPS pressing types conflicting mode |
| CN108337730B (en) * | 2018-02-01 | 2020-10-23 | 杭州中科微电子有限公司 | Method for realizing position positioning by using time-division synchronous rotating wave beam |
| CN112305565B (en) * | 2020-10-26 | 2024-01-26 | 中国科学院空天信息创新研究院 | B1C authentication signal generation method and device, electronic equipment and storage medium |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004158901A (en) * | 2002-11-01 | 2004-06-03 | Kddi Corp | Transmission apparatus, system, and method using ofdm and mc-cdma |
| CN101272368A (en) * | 2007-03-19 | 2008-09-24 | 中兴通讯股份有限公司 | Method and device for stacking pseudorandom sequence on OFDM signal |
| CN102307328B (en) * | 2011-08-22 | 2014-05-28 | 北京邮电大学 | Positioning signal generation method, transmitter and positioning system |
| CN102724753B (en) * | 2012-06-13 | 2014-12-31 | 北京邮电大学 | Arrival time difference rectification based wireless positioning method and terminal |
-
2014
- 2014-06-30 CN CN201410305113.2A patent/CN104090283B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104090283A (en) | 2014-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Siwiak et al. | Ultra-wideband radio technology | |
| CN104104468B (en) | A kind of uplink-downlink configuration information transferring method and equipment | |
| TW413987B (en) | Circuit for synchronizing CDMA mobile phones | |
| CN104090283B (en) | A kind of method and apparatus generating framing signal | |
| CN105846965A (en) | Signaling for downlink coordinated multipoint in a wireless communication system | |
| RU2007143565A (en) | ELECTRONIC EQUIPMENT FOR A WIRELESS COMMUNICATION SYSTEM AND METHOD FOR CONTROLLING ELECTRONIC EQUIPMENT FOR A WIRELESS COMMUNICATION SYSTEM | |
| MY144110A (en) | Apparatus and method for receiving packet data on a subset of carrier frequencies in a wireless communication system | |
| CN102724753B (en) | Arrival time difference rectification based wireless positioning method and terminal | |
| CN108924917B (en) | PSM (pulse position modulation) mechanism-based active timer setting method and platform | |
| CN102307328B (en) | Positioning signal generation method, transmitter and positioning system | |
| CN105024778A (en) | Scrambling method of downlink channel | |
| CN110446259A (en) | A kind of location determining method and communication equipment of pager meeting | |
| BR0209954A (en) | Synchronization of service parameters stored in a communication system | |
| CN105263117A (en) | Method for implementing positioning via smart phone of IoT (Internet of Things) equipment | |
| CN110426722A (en) | Movement station and the transmission method of differential corrections data, terminal device, storage medium | |
| CN102724754B (en) | Wireless positioning method and base station | |
| CN109358354B (en) | Handheld navigation signal simulator | |
| CN201742566U (en) | Multipoint set net type data system | |
| CN106209129A (en) | The special ultrashort wave Data transfer system of a kind of ocean fisheries administration communication and method | |
| CN105187151B (en) | A kind of production method and system of WCDMA system downlink scrambling code sequence | |
| CN108462514A (en) | Bluetooth talkback device and related intercom system | |
| CN103517437A (en) | Method and system for distributing a plurality of relays and power of relays in cellular network | |
| CN103327191A (en) | Audio-communication-based ZigBee network coordination system and mobile cell phone monitoring method | |
| DE60043545D1 (en) | Signaling mechanism for a protocol for wireless application | |
| CN109803364A (en) | A kind of ascending power control method and mobile communication terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |