CN102388592B - Signal processing method and device - Google Patents
Signal processing method and device Download PDFInfo
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- CN102388592B CN102388592B CN201180001868.8A CN201180001868A CN102388592B CN 102388592 B CN102388592 B CN 102388592B CN 201180001868 A CN201180001868 A CN 201180001868A CN 102388592 B CN102388592 B CN 102388592B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
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Abstract
The invention provides a signal processing method and device, relates to the technical field of communication, minimizes hardware source waste during original signal handling process, and reduces cost. The signal processing method provided by the embodiments of the invention comprises detecting whether the current signal is a first model signal. If the current signal is the first model signal, a base band processing unit modulates the first model signal before pulse formation, packs the first model signal modulated through a modulation action before pulse formation, and sends to the RF processing unit. Embodiments of the invention are used for processing signal.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of processing method and device of signal.
Background technology
The transmission of ability executive signal after base station in wireless communication system, the processing that terminal need to be modulated signal.The modulation of signal is to complete by the baseband processing unit of equipment or RF processing unit.In the application of present mode more and more widely in situation, equipment can be to GSM (Global System of Mobile communication, global system for mobile communications) signal, LTE (Long term Evolution, long-term technology evolution), the signal such as UMTS (Universal Mobile Telecommunications System, universal mobile telecommunications system) modulates respectively action.Such as, for GSM signal, first in baseband processing unit, carry out GSM coding, then the GSM signal after coding is sent to RF processing unit, and by RF processing unit, GSM signal is modulated.For LTE, UMTS signal, first in baseband processing unit, encode and pulse-shaping before modulation action, then LTE, UMTS signal are completed the modulation action of pulse-shaping in RF processing unit.
State in realization in the process of technical scheme, inventor finds that configuration mode of the prior art has caused the waste of hardware resource, has increased cost simultaneously.
Summary of the invention
Embodiments of the invention provide a kind of processing method and device of signal, can improve the resource utilization of system, reduce costs.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A processing method for signal, comprising:
Whether detect current demand signal is the first standard signal;
If described current demand signal is the first standard signal, at baseband processing unit, described the first standard signal is carried out to the modulation action before pulse-shaping;
Described described the first standard signal through the modulation action modulation before pulse-shaping is encapsulated, send to RF processing unit.
A processing unit for signal, comprising:
Whether signal detection module is the first standard signal for detection of current demand signal;
Signal modulation module, for carrying out the modulation action before pulse-shaping to described the first standard signal;
Signal transmitting module, for described first standard signal of the modulation action modulation through before described pulse-shaping is encapsulated, sends to RF processing unit.
A kind of base station, comprises the processing unit of above-mentioned signal.
A kind of terminal, comprises the processing unit of above-mentioned signal.
The signal processing method that the embodiment of the present invention provides and device, by in existing RF processing unit to the first standard signal, modulation action before the pulse-shaping carrying out as GSM signal is arranged in baseband processing unit and completes, thereby make baseband processing unit both can carry out non-the first standard signal, as LTE, modulation action before the pulse-shaping of the signals such as UMTS, can carry out again the modulation action before the pulse-shaping of the first standard signal, and needn't again the modulation function before the pulse-shaping of the first standard signal be configured in RF processing unit, compare with the situation that all will be configured the modulation function before signal pulse moulding in baseband processing unit in prior art and RF processing unit, improve the resource utilization of system, reduce costs.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of the processing method of the signal in the embodiment of the present invention 1;
Fig. 2 is the block diagram of the processing unit of the signal in the embodiment of the present invention 1;
Fig. 3 is the flow chart of the processing method of the signal in the embodiment of the present invention 2;
Fig. 4 is the linear modulated process schematic diagram of the signal in the embodiment of the present invention 2;
Fig. 5 is the signal non-linear modulation process schematic diagram in the embodiment of the present invention 2;
The block diagram of the processing unit of the signal in Fig. 6 embodiment of the present invention 3;
Fig. 7 is the block diagram of the distributed base station in the embodiment of the present invention 4.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1:
The embodiment of the present invention provides a kind of signal processing method, and as shown in Figure 1, described method is the method for baseband processing unit one side, comprises the following steps:
Whether be first standard signal, if the first standard signal carries out 102, otherwise carry out 103 if 101, detecting current demand signal.
Wherein the first standard signal comprises following signal one or a combination set of: GSM signal, EDGE (Enhanced Data Rate for GSM Evolution, enhanced data rates for gsm evolution) signal, EDGE+ (Enhanced Data Rate for GSM Evolution+) signal.
Non-the first standard signal comprises following signal one or a combination set of: LTE signal, UMTS signal, TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, TD SDMA access) signal, CDMA (Code Division Multiple Access, code division multiple access access) signal, CDMA2000 (Code Division Multiple Access 2000) signal etc.
102, at baseband processing unit, described the first standard signal is carried out to the modulation action before pulse-shaping.
The modulation of the first standard signal can be linear modulation mode and non-linear modulation mode, above-mentioned linear modulation mode comprises 8PSK (8 phase-shift keying, 8 phase shift keyings), QPSK (Quadrature Phase Shift Keying, Quadrature Phase Shift Keying), α-QPSK (α-Quadrature Phase Shift Keying, α Quadrature Phase Shift Keying), 16QAM (16 Quadrature Amplitude Modulation, 16 quadrature amplitude modulation), 32QAM (32 Quadrature Amplitude Modulation, 32 quadrature amplitude modulation) etc., above-mentioned non-linear modulation mode is GMSK (Gaussian Filtered Minimum Shift Keying, Gaussian-filtered minimum shift keying).
103, at baseband processing unit, described non-the first standard signal is carried out to the modulation action before pulse-shaping.
Modulation system for non-the first standard signal is linear modulation mode, comprising: 8PSK, QPSK, α-QPSK, 16QAM, 32QAM etc.
104, the described signal through the modulation action modulation before pulse-shaping is encapsulated, send to RF processing unit.
RF processing unit carries out pulse-shaping modulation action to the received signal.
Then, RF processing unit can carry out, after the processing such as power amplification, filtering, going out by antenna transmission to completing the signal of modulation.
A kind of signal processing apparatus that the embodiment of the present invention also provides, as shown in Figure 2, comprising: signal detection module 21, signal modulation module 22, signal transmitting module 23.
Wherein, whether signal detection module 21 is the first standard signal for detection of current demand signal, and the first standard signal comprises following signal one or a combination set of: GSM signal, EDGE signal, EDGE+ signal; Non-the first standard signal comprises following signal one or a combination set of: LTE, UMTS, TD-SCDMA, CDMA, CDMA2000 etc.
Signal modulation module 22 is for carrying out the modulation action before pulse-shaping to described the first standard signal.The modulation system of the first standard signal can be linear modulation mode and non-linear modulation mode.Above-mentioned linear modulation mode comprises: 8PSK, QPSK, α-QPSK, 16QAM, 32QAM etc.; Non-linear modulation mode comprises GMSK.
Signal transmitting module 23, for described first standard signal of the modulation action modulation through before described pulse-shaping is encapsulated, sends to RF processing unit.
RF processing unit carries out pulse-shaping modulation action for the first standard signal of the modulation action modulation to before pulse-shaping.
The signal processing method that the embodiment of the present invention provides and device, modulation action before the pulse-shaping in existing RF processing unit, the first standard signal being carried out is arranged in baseband processing unit and is completed, thereby make baseband processing unit both can carry out the modulation action before the pulse-shaping of the first standard signal, can carry out again the modulation action before the pulse-shaping of non-the first standard signal, and needn't again the modulation function before the pulse-shaping of the first standard signal be configured in RF processing unit, compare with the situation that all will be configured the modulation function before signal pulse moulding in baseband processing unit in prior art and RF processing unit, improve the resource utilization of system, reduce costs.
Embodiment 2:
The embodiment of the present invention also provides a kind of signal processing method, and described method is the method for baseband processing unit one side, as shown in Figure 3, comprises the following steps:
Whether be first standard signal, if the first standard signal carries out 302, otherwise carry out 303 if 301, detecting current demand signal.
Wherein the first standard signal comprises following signal one or a combination set of: GSM signal, EDGE signal, EDGE+ signal.
Non-the first standard signal comprises following signal one or a combination set of: LTE signal, UMTS signal, TD-SCDMA signal, CDMA signal, CDMA2000 signal etc.
302, at baseband processing unit, described the first standard signal is carried out to planisphere mapping and phase rotating modulation action, or described the first standard signal is carried out to differential coded modulation action.
Concrete process can comprise: first at baseband processing unit to the processing of encoding of GSM signal, it can be any of convolutional encoding, turbo coding, interweaving encoding etc. that coding is processed.
If described the first standard signal carries out linear modulation, the main modulation action before pulse-shaping comprises: planisphere mapping and the phase rotating of the first standard signal, and concrete modulation system can be 8PSK, QPSK, α-QPSK, 16QAM, 32QAM etc.; If described the first standard signal carries out non-linear modulation, concrete modulation system can be GMSK modulation, and the action of the modulation before this pulse-shaping comprises: differential coded modulation action.
303, at baseband processing unit, described non-the first standard signal is carried out the modulation action of planisphere mapping and phase rotating.
Before modulating action first by baseband processing unit to the action of encode of described non-the first standard signal, the processing of encoding can be any of convolutional encoding, turbo coding, interweaving encoding etc.
Then baseband processing unit carries out the modulation action before pulse-shaping to the signal after encoding, and main modulation action comprises: planisphere mapping and phase rotating.
The concrete modulation system of non-the first standard signal can be 8PSK, QPSK, α-QPSK, 16QAM, 32QAM etc.
304, the signal after the modulation action modulation before pulse-shaping is encapsulated, send to RF processing unit.
To encapsulating through the signal of modulation action modulation before pulse-shaping, specifically can encapsulate signal according to CPRI common public radio interface agreement, also the agreement that can arrange mutually according to baseband processing unit and RF processing unit encapsulates, and then baseband processing unit sends to RF processing unit the signal of this encapsulation.
RF processing unit carries out decapsulation to the signal receiving.If the signal that RF processing unit receives is the first standard signal, the first standard signal that carries out the modulation action modulation before pulse-shaping through baseband processing unit is carried out to pulse-shaping modulation action.Concrete, carry out pulse-shaping modulation action for described the first standard signal that carries out linear modulation at baseband processing unit; Carrying out GMSK for described the first standard signal that carries out non-linear modulation at baseband processing unit tables look-up.If signal right and wrong the first standard signal that RF processing unit receives, carries out pulse-shaping modulation action to non-the first standard signal that carries out the modulation action modulation before pulse-shaping through baseband processing unit.
Concrete, described baseband processing unit can be BBU (Building Base Unit) baseband processing unit, described RF processing unit is RRU (Radio Remote Unit) Remote Radio Unit, described BBU encapsulates the described signal through the modulation action modulation before pulse-shaping according to CPRI common public radio interface agreement, send to RRU.
Taking distributed base station as example, be that example is specifically explained to the processing method of GSM/LTE dual mode signal below.
First the baseband processing unit of base station detects the standard of current demand signal, GSM or LTE signal; Then current demand signal is encoded, coding processing can be any of convolutional encoding, turbo coding, interweaving encoding etc.
If current demand signal is GSM signal, the linear modulation process of GSM signal as shown in Figure 4, in baseband processing unit 41, first carry out the modulation action before pulse-shaping 421 to carrying out the GSM signal of linear modulation, include planisphere mapping 411 and phase rotating 412.Linear modulation method comprises: 8PSK, QPSK, α-QPSK, 16QAM, 32QAM etc.
Then baseband processing unit 41 encapsulates the signal of the modulation action modulation through before pulse-shaping 421, for distributed base station, because baseband processing unit and RF processing unit are two independently equipment, baseband processing unit 41 is connected by optical fiber with RF processing unit 42, specifically can encapsulate signal according to CPRI common public radio interface agreement.
Baseband processing unit 41 sends to RF processing unit 42 the signal of this encapsulation, and RF processing unit 42 is according to the decapsulation to the received signal of CPRI common public radio interface agreement, and signal is carried out to pulse-shaping 421 modulation actions.
If current demand signal is GSM signal, the non-linear modulation process of GSM signal is carried out non-linear modulation to GSM signal as shown in Figure 5, be with linear modulation difference, GSM signal carries out differential coding 511 in baseband processing unit 51, carries out GMSK and table look-up 521 in RF processing unit.
If current demand signal is LTE signal, LTE signal carries out linear modulation, and detailed process as shown in Figure 4, does not repeat them here.
After having modulated, current demand signal carries out, after the processing such as power amplification, filtering, being then sent to certain terminal or base station etc. by antenna.
The embodiment of the present invention is taking GSM/LTE dual-mode signal processing method as example, certainly, also can be GSM/UMTS dual mode signal, can be also the multimode signals such as GSM/CDMA/LTE/TD-SCDMA, or the signal processing method of any the first standard and any non-the first standard combination.Difference is, baseband processing unit will carry out corresponding modulation action to the signal of other standards, as EDGE/UMTS multimode signal, to carry out the modulation action before corresponding pulse-shaping to EDGE, UMTS signal respectively at baseband processing unit, respectively EDGE, UMTS signal are carried out the modulation action of corresponding pulse-shaping at RF processing unit, be not described in detail at this.
The signal processing method that the embodiment of the present invention provides, by in existing RF processing unit to the first standard signal, as being arranged in baseband processing unit, the modulation action before the pulse-shaping of GSM signal processes, thereby make baseband processing unit both can carry out to the first standard signal linear modulation and the non-linear modulation of the modulation action before pulse-shaping, again can be to non-the first standard signal, as LTE signal carries out the modulation action before pulse-shaping, in RF processing unit, needn't be configured the modulation function before the pulse-shaping of the first standard signal again, compare with the situation that the modulation function that all will carry out in baseband processing unit in prior art and RF processing unit before the pulse-shaping of signal is configured, improve the resource utilization of system, reduce costs.
Embodiment 3:
The embodiment of the present invention also provides a kind of signal processing apparatus, and as shown in Figure 6, described device comprises: signal detection module 61, signal modulation module 62, signal transmitting module 63.
Whether signal detection module 61 is the first standard signal for detection of current demand signal.
Signal modulation module 62, for carrying out the modulation action before pulse-shaping to described the first standard signal.
Concrete, signal modulation module 62 can comprise:
The first standard signal modulation submodule 621, for described the first standard signal being carried out to planisphere mapping and phase rotating modulation action, or for described the first standard signal is carried out to differential coded modulation action.
Non-the first standard signal modulation submodule 622, for carrying out planisphere mapping and phase rotating modulation action to described non-the first standard signal.
Signal transmitting module 63, for described first standard signal of the modulation action modulation through before described pulse-shaping is encapsulated, sends to RF processing unit.
Wherein, described the first standard signal comprises following signal one or a combination set of: GSM signal, EDGE signal, EDGE+ signal.
Described non-the first standard signal comprises following signal one or a combination set of: LTE signal, UMTS signal, TD-SCDMA signal, CDMA signal, WCDMA signal, CDMA2000 signal.
It is example explanation that lower mask body is stated processing unit processing GSM/LTE dual mode signal above, as shown in Figure 6.
First signal detection module 61 is GSM signal or LTE signal for detection of current signal.
Wherein, the first standard signal modulation submodule 621 is modulated action for GSM signal being carried out to planisphere mapping and phase rotating, or for GSM signal is carried out to differential coded modulation action; Non-the first standard signal modulation submodule 622 is for carrying out planisphere mapping and phase rotating modulation action to LTE signal.
Above-mentioned signal transmitting module 63 is for encapsulating the signal of modulating through signal modulation module 62, concrete tunneling can be CPRI common public radio interface agreement, can be also the interface protocol that baseband processing unit and RF processing unit are arranged mutually.Then the signal of encapsulation is sent to RF processing unit, to make RF processing unit carry out pulse-shaping modulation action.
Above-mentioned RF processing unit, for the signal receiving is carried out after decapsulation, is carried out pulse-shaping modulation action.If current demand signal is GSM signal, this GSM signal carries out linear modulation, and RF processing unit carries out pulse-shaping modulation action to this GSM signal; If this GSM signal carries out non-linear modulation, RF processing unit carries out GMSK to this GSM signal and tables look-up.If what RF processing unit received is LTE signal, this LTE signal is carried out to pulse-shaping modulation action.
Then signal modulation having been moved carries out the processing such as power amplification, filtering, by antenna, this signal is launched.
The present embodiment is taking the processing unit of GSM/LTE dual mode signal as example, certainly, also can be the processing unit of GSM/UMTS dual mode signal, also can be the signal processing apparatus of the multimodes such as GSM/CDMA/LTE/TD-SCDMA, or the signal processing apparatus of any the first standard and any non-the first standard combination.Difference is, modulating apparatus will be to the modulating of the signal of corresponding standard, and as EDGE/UMTS dual mode signal, the first standard signal modulation submodule is for carrying out the modulation before pulse-shaping to EDGE signal; Non-the first standard signal modulation submodule, for UMTS signal is carried out to the modulation before pulse-shaping, is not described in detail at this.
The signal processing apparatus that the embodiment of the present invention provides, described device is both for to non-the first standard signal, and as LTE signal carries out the modulation action before pulse-shaping, key step comprises that planisphere shines upon and the modulation action of phase rotating; Also for to the first standard signal, as GSM signal carries out the modulation action before pulse-shaping, comprise the differential coding of planisphere mapping, phase rotating step or the non-linear modulation of linear modulation simultaneously; Then the described signal assemble through modulation action modulation before pulse-shaping is sent to RF processing unit by baseband processing unit.No matter be the signal of which kind of standard, the modulation action before pulse-shaping is all processed at baseband processing unit, has improved the resource utilization of system, reduces costs like this.
Embodiment 4:
The embodiment of the present invention also provides a kind of base station, and this base station comprises the signal processing apparatus of above-described embodiment 1 or 3.
Lower mask body is specifically described as an example of distributed base station processing GSM/LTE signal example.
This distributed base station comprises indoor baseband processing unit BBU 71 and radio frequency remote unit RRU 72.BBU comprises: signal detection module 711, signal modulation module 712, signal transmitting module 713.
Signal detection module 711 is GSM signal or LTE signal for detection of current demand signal.
Wherein, signal modulation module 712 can comprise the first standard signal modulation submodule 7121 and non-the first standard signal modulation submodule 7122.The first standard signal modulation submodule 7121 is for carrying out planisphere mapping and phase rotating modulation action to GSM signal, or for GSM signal is carried out to differential coded modulation action, non-the first standard signal modulation submodule 7122 is for carrying out planisphere mapping and phase rotating modulation action to LTE signal.
Signal transmitting module 713 is for encapsulating the signal of modulating through signal modulation module 712, and concrete tunneling can be CPRI common public radio interface agreement, then will send to RF processing unit 72 through the signal of encapsulation.
RF processing unit 72, for the current demand signal receiving is carried out after decapsulation, is carried out pulse-shaping modulation action.
In the time that base station will be to terminal, other base station transmitted signal, first signal detection module 711 detects the standard of current demand signal, GSM or LTE; Then current demand signal is encoded, coding processing can be any of convolutional encoding, turbo coding, interweaving encoding etc.
If current demand signal is GSM signal, the first standard signal modulation submodule 7121 in signal modulation module 712 carries out the modulation action before pulse-shaping to carrying out the GSM signal of linear modulation, includes planisphere mapping and phase rotating.Linear modulation method comprises 8PSK, QPSK, α-QPSK, 16QAM, 32QAM etc.The GSM signal that need to carry out non-linear modulation is carried out to differential coded modulation action, and concrete modulation system comprises GMSK.
If current demand signal is LTE signal, non-the first standard signal modulation submodule 7122 carries out the modulation action before pulse-shaping to current demand signal, comprises planisphere mapping and phase rotating.
Then signal transmitting module 713 encapsulates the current demand signal of the modulation action modulation through before pulse-shaping, specifically can encapsulate signal according to CPRI common public radio interface agreement, then the signal of this encapsulation is sent to RF processing unit 72.
If current demand signal is LTE signal, RF processing unit 72 carries out pulse-shaping modulation action to LTE signal; If current demand signal is GSM signal, if this GSM signal carries out is linear modulation, this GSM signal is carried out to pulse-shaping modulation action, if this GSM signal carries out is non-linear modulation, this GSM signal is carried out to GMSK and table look-up.
After having modulated, current demand signal is carried out, after the processing such as power amplification, filtering, be then sent to certain terminal, data card or base station etc. by antenna transmission.
Further, the present embodiment is also applicable to macro base station or micro-base station etc., for macro base station, micro-base station, baseband processing unit and RF processing unit can or be arranged on same or nearer place distinct device for same equipment, baseband processing unit and RF processing unit can adopt CPRI common public radio interface agreement to encapsulate signal, also can encapsulate by rendezvous protocol.
The present embodiment is with GSM/LTE dual mode signal processing example, certainly, also can be the base station of supporting the processing of GSM/UMTS dual mode signal, also can be the base station of the multimode signal processing such as GSM/CDMA/LTE/TD-SCDMA, or the base station of the signal processing of any the first standard and any non-the first standard combination, do not repeat them here.
The base station that the embodiment of the present invention provides, comprise baseband processing unit and RF processing unit, described baseband processing unit was both modulated the modulation of moving for non-the first standard signal is carried out before pulse-shaping, and key step comprises the modulation action of planisphere mapping and phase rotating; Baseband processing unit is also modulated the modulation of moving for the first standard signal is carried out before pulse-shaping simultaneously, comprises the differential coding of planisphere mapping, phase rotating step or the non-linear modulation of linear modulation; Then baseband processing unit encapsulates and sends to RF processing unit through the signal of modulation action modulation before pulse-shaping described.No matter be the signal of which kind of standard, the modulation action before pulse-shaping is all processed at baseband processing unit, has improved the resource utilization of system, reduces costs like this.
The embodiment of the present invention also provides a kind of terminal, comprises the signal processing apparatus of embodiment 1 or 3, and above-mentioned terminal can be mobile phone, and data card etc., do not repeat them here.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, aforesaid program can be stored in a computer read/write memory medium, this program, in the time carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (6)
1. a signal processing method, is characterized in that, comprising:
Whether detect current demand signal is the first standard signal;
If described current demand signal is the first standard signal, adopt linear modulation mode or non-linear modulation mode to carry out the modulation action before pulse-shaping to described the first standard signal at baseband processing unit, wherein, modulation action before pulse-shaping corresponding to described linear modulation mode comprises: planisphere mapping and phase rotating modulation action, and the modulation action before pulse-shaping corresponding to described non-linear modulation mode comprises: differential coded modulation action;
If described current demand signal is non-the first standard signal, adopt linear modulation mode to carry out the modulation action before pulse-shaping to described non-the first standard signal at baseband processing unit;
Described described the first standard signal or described non-the first standard signal through the modulation action modulation before pulse-shaping encapsulated, send to RF processing unit;
Wherein, described the first standard signal comprises following signal one or a combination set of: GSM signal, EDGE signal, EDGE+ signal; Described non-the first standard signal comprises following signal one or a combination set of: LTE signal, UMTS signal, TD-SCDMA signal, CDMA signal, WCDMA signal, CDMA2000 signal.
2. method according to claim 1, it is characterized in that, described baseband processing unit is BBU baseband processing unit, described RF processing unit is RRU Remote Radio Unit, described BBU according to CPRI common public radio interface protocol encapsulation, sends to RRU by described described the first standard signal through the modulation action modulation before pulse-shaping.
3. a signal processing apparatus, is characterized in that, comprising:
Whether signal detection module is the first standard signal for detection of current demand signal;
The first standard signal modulation submodule in signal modulation module, for adopting linear modulation mode or non-linear modulation mode, described the first standard signal is carried out to the modulation action before pulse-shaping, wherein, modulation action before pulse-shaping corresponding to described linear modulation mode comprises: planisphere mapping and phase rotating modulation action, and the modulation action before pulse-shaping corresponding to described non-linear modulation mode comprises: differential coded modulation action;
Non-the first standard signal modulation submodule in described signal modulation module, also for adopting linear modulation mode to carry out the modulation action before pulse-shaping to non-the first standard signal;
Signal transmitting module, for described the first standard signal or described non-first standard signal of the modulation action modulation through before described pulse-shaping are encapsulated, sends to RF processing unit;
Described the first standard signal comprises following signal one or a combination set of: GSM signal, EDGE signal, EDGE+ signal; Described non-the first standard signal comprises following signal one or a combination set of: LTE signal, UMTS signal, TD-SCDMA signal, CDMA signal, WCDMA signal, CDMA2000 signal.
4. a base station, is characterized in that, comprises described device claimed in claim 3.
5. base station according to claim 4, it is characterized in that, described device is BBU baseband processing unit, described RF processing unit is RRU Remote Radio Unit, the described signal transmitting module of described BBU according to CPRI common public radio interface protocol encapsulation, sends to RRU by described described the first standard signal through the modulation action modulation before pulse-shaping.
6. a terminal, is characterized in that, comprises described device claimed in claim 3.
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| PCT/CN2011/079952 WO2012149758A1 (en) | 2011-09-21 | 2011-09-21 | Signal processing method and device |
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| CN105027475B (en) * | 2013-03-07 | 2018-04-13 | 瑞典爱立信有限公司 | For providing the method and arrangement being wirelessly electrically accessed in site-local |
| CN109076636A (en) * | 2016-12-26 | 2018-12-21 | 华为技术有限公司 | Signal processing method and distributed control means in distributed base station |
| CN107968680B (en) * | 2017-12-01 | 2019-11-22 | 清华大学 | A kind of compensation method of optical non-linear effect and device |
| CN111131109B (en) * | 2019-12-31 | 2022-08-23 | 京信网络系统股份有限公司 | Signal identification method and device, computer equipment and storage medium |
| CN117156499B (en) * | 2023-10-30 | 2024-01-02 | 中国移动紫金(江苏)创新研究院有限公司 | Distributed cell frequency resource management method, device and storage medium |
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| CN101695192A (en) * | 2009-10-22 | 2010-04-14 | 中兴通讯股份有限公司 | Method and system for realizing resource distribution between baseband processing unit and radio frequency unit |
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| CN102388592A (en) | 2012-03-21 |
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