CN101944943A - Uplink signal processing method and device - Google Patents
Uplink signal processing method and device Download PDFInfo
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- CN101944943A CN101944943A CN2009101572539A CN200910157253A CN101944943A CN 101944943 A CN101944943 A CN 101944943A CN 2009101572539 A CN2009101572539 A CN 2009101572539A CN 200910157253 A CN200910157253 A CN 200910157253A CN 101944943 A CN101944943 A CN 101944943A
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Abstract
The embodiment of the invention discloses an uplink signal processing method and a device, and relates to the field of wireless communication. The invention can merge the dynamic ratios according to the traffic volume borne by antennae in the uplink signal merging process. The method comprises the following steps: acquiring the ratio of the traffic volume borne by each antenna in the total traffic volume; and merging uplink signals received by all the antennae according to the ratios. The method and the device provided by the embodiment of the invention are applicable to any channel multiplexing system.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to the processing method and the device of the upward signal in a kind of communication channel multiplex system.
Background technology
At some wireless telecommunication system, as CDMA (Code Division Multiple Access, code division multiple access) in the planning process of system, owing to be subjected to the restriction of conditions such as adjacent area number that terminal can dispose and pilot frequency sequence number of phases, so can't plan enough number of cells; And in wireless telecommunication system, zones such as building, tunnel, high ferro all are the communication blind zones of covering means commonly used, therefore need a kind of passage to be carried out multiplexing method, to solve the problem of the limited and network coverage of above-mentioned adjacent area and pilot frequency sequence.At this problem, existing solution has repeater and the many receiving systems of single-shot (Omni Transmission Sectorized Receive, OTSR) two kinds.
Wherein, overcharge in the system at single-shot, each antenna must use polylith Base-Band Processing veneer could support channel multiplexing carrying out must using independent demodulation passage to handle when signal receives operation like this, causes cost to rise.
In order to guarantee channel multiplexing and to reduce equipment cost, in the channel multiplexing system after improvement, base station radio frequency module receives the downgoing baseband IQ data that the wireless base station transmits by optical fiber or cable, through converting emission of radio frequency signals after the processing such as interpolation, filtering, up-conversion, D/A conversion to aerial; Base station radio frequency module receives the up-link wireless signal of user terminal emission by antenna, through being converted into the base band upward signal after the processing such as down-conversion, A/D conversion, extraction, filtering, give the Base-Band Processing part of wireless base station by optical fiber or cable, that is to say, send to the Base-Band Processing part of wireless base station after base station radio frequency module merges upward signal again, only need a Base-Band Processing veneer can support channel multiplexing like this in the wireless base station.
But, state in realization in the process of channel multiplexing system, the inventor finds that there are the following problems at least in the prior art:
In above-mentioned improved channel multiplexing system, when upward signal was merged, the upward signal that receives for each base station radio frequency module all was that fixed ratio merges, and can't truly reflect user's distribution situation.
Summary of the invention
Embodiments of the invention provide a kind of processing method and device of upward signal, can carry out dynamic ratio according to each antenna loaded service amount when carrying out the upward signal merging and merge.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of processing method of upward signal comprises:
Obtain every antenna institute bearer traffic shared ratio of difference in total traffic;
According to described ratio the upward signal that all antennas receive is merged.
A kind of device that is used for the upward signal processing comprises:
Acquiring unit is used for obtaining every antenna institute bearer traffic at the shared respectively ratio of total traffic;
Merge cells is used for according to described ratio the upward signal that all antennas receive being merged.
The processing method of the upward signal that the embodiment of the invention provides and device, at first get access to the information of every piece antenna institute bearer traffic in total traffic the shared ratio relevant with actual volume, according to described rate information upward signal is merged then, thereby realize upward signal being carried out dynamic ratio merging according to the actual volume of each antenna.
Description of drawings
Fig. 1 is the method flow diagram in the embodiment of the invention one;
Fig. 2 is the method flow diagram in the embodiment of the invention two;
Fig. 3 is the method flow diagram in the embodiment of the invention three;
Fig. 4 is the device schematic diagram in the embodiment of the invention four;
Fig. 5 is the structural representation one of the acquiring unit in the embodiment of the invention four;
Fig. 6 is the structural representation two of the acquiring unit in the embodiment of the invention four.
Embodiment
The processing method and the device of the upward signal that the embodiment of the invention is provided below in conjunction with accompanying drawing are described in detail.
Embodiment one:
As shown in Figure 1, the processing method of the upward signal that present embodiment provides may further comprise the steps:
101, obtain every antenna institute bearer traffic shared ratio of difference in total traffic;
In embodiments of the present invention, described every antenna institute bearer traffic shared ratio in total traffic, can be to be configured and to store away in advance in the past actual volume according to every antenna by the staff, because the actual volume of each antenna changes constantly, therefore the described rate information that prestores also needs to upgrade termly;
Described every antenna institute bearer traffic shared ratio in total traffic can also be dynamically to calculate according to the traffic carrying capacity of current each antenna, and the concrete operations meeting is further introduced in subsequent embodiment, no longer describes in detail herein.
102, according to described ratio the upward signal that all antennas receive is merged.
The upward signal described ratio corresponding with this antenna that every antenna is received multiplies each other, and then the upward signal on all antennas merged;
Wherein, described upward signal can be the uplink baseband signal, also can be up radiofrequency signal.
Afterwards, also need the upward signal after the above-mentioned merging is carried out automatic gain control, make upward signal power meet the requirement of Base-Band Processing.
The processing method of the upward signal that the embodiment of the invention provides, at first get access to the information of every piece antenna institute bearer traffic in total traffic the shared ratio relevant with actual volume, according to described rate information upward signal is merged then, thereby realize upward signal being carried out dynamic ratio merging according to the actual volume of each antenna.
Embodiment two:
As shown in Figure 2, the processing method of the upward signal that present embodiment provides specifically may further comprise the steps:
201, measure and add up the in-band noise M that described every antenna receives respectively in real time, wherein the in-band noise that receives of i root antenna is Mi.
In the specific implementation, can the requirement that certain cycle reaches real-time measurement and statistics be set for above-mentioned measurement and statistic processes, the described cycle need be provided with according to system requirements, such as every 1.667ms the in-band noise that every antenna receives being carried out one-shot measurement and statistics.
The operation that the needs of mentioning in following examples carry out in real time also all is to realize by certain cycle is set, and is to be provided with in the concrete cycle to set according to different demands.
202, calculate the in-band noise total amount N of all antennas under the channel multiplexing system.
The in-band noise total amount N of described all antennas is the in-band noise sum of all antennas, and then the formula that embodies of N is
N＝∑Mi
203, calculate every antenna institute loaded service amount shared ratio P in total traffic.
Because under a base station, terminal use's quantity or terminal use's total data rate roughly are directly proportional with the intensity of the radiofrequency signal that the base station receives, and can think that then every antenna institute loaded service amount of described base station also is roughly to be directly proportional with its in-band noise that receives; Therefore, in the present embodiment, described every antenna institute loaded service amount shared ratio P in total traffic, the in-band noise that just can be taken as described every antenna correspondence shared ratio in the in-band noise total amount, then i root antenna institute loaded service amount shared ratio in total traffic is
P＝Mi/N＝Mi/ΣMi
In an embodiment of the present invention, the in-band noise of the every antenna correspondence that directly will calculate shared ratio in the in-band noise total amount, as every antenna institute loaded service amount shared ratio P in total traffic, this is to obtain a kind of mode of ratio P in the method that provides of the embodiment of the invention, and is not intended to limit the scope of the invention;
Under some other scene, also may need to give certain weight for in-band noise shared ratio in the in-band noise total amount of described every antenna correspondence, perhaps the in-band noise shared ratio in the in-band noise total amount to described every antenna correspondence carries out simple calculations (such as extraction of square root), and then obtains every antenna institute loaded service amount shared ratio P in total traffic.
204, according to described ratio P the upward signal that all antennas in the channel multiplexing system receive is merged.
The ratio P that the upward signal that every antenna is received is corresponding with this antenna multiplies each other, and then the multiplied result of all antenna correspondences is sued for peace, and can obtain total upward signal, the result after just the upward signal on all antennas being merged.
205, the upward signal after being combined carries out automatic gain control, makes its power meet the requirement of Base-Band Processing.
Above steps in the present embodiment can partly realize in the wireless base station Base-Band Processing, also can realize in base station radio frequency module.
The processing method of the upward signal that present embodiment provides, by calculating the information that in-band noise shared ratio in the in-band noise total amount that every antenna receives obtains every antenna institute bearer traffic shared ratio in total traffic, also just can adjust signal that every antenna receives shared ratio when carrying out up the merging in real time, according to described rate information upward signal is merged then, thereby realize upward signal being carried out dynamic ratio merging according to the actual volume of each antenna.
Embodiment three:
As shown in Figure 3, the processing method of the upward signal that present embodiment provides specifically may further comprise the steps:
301, measure background noise (making an uproar in the end) A of every antenna, wherein make an uproar and be Ai in the end of i root antenna.
In the specific implementation, can not having the end that calling, 24 hours methods such as minimum measure described every antenna by silence period, 10s makes an uproar.
302, measure and add up the in-band noise B that described every antenna receives respectively in real time, wherein the in-band noise that receives of i root antenna is Bi.
In the specific implementation, can the requirement that certain cycle reaches real-time measurement and statistics be set for above-mentioned measurement and statistic processes, the described cycle need be provided with according to system requirements, such as every 1.667ms the in-band noise that every antenna receives being carried out one-shot measurement and statistics.
303, lifting C makes an uproar at the end of calculating every antenna.
The lifting of making an uproar of the so-called end is the lifting amount that in-band noise that antenna receives was made an uproar the end of with respect to, and it can reflect current every antenna loaded service amount more accurately with respect to in-band noise; The in-band noise B that receives with every antenna deducts its end the end that A can obtain every antenna lifting C that makes an uproar that makes an uproar, at i root antenna,
Ci＝Bi-Ai
304, lifting total amount D makes an uproar at the end of calculating all antennas under the channel multiplexing system.
The end of described all antennas the end that lifting total amount D is all antennas lifting sum of making an uproar of making an uproar, then the formula that embodies of D is
D＝∑Ci＝∑(Bi-Ai)
305, calculate every antenna institute loaded service amount shared ratio E in total traffic.
Because under a base station, the lifting of making an uproar of terminal use's quantity or terminal use's total data rate and the end of base station is directly proportional, and can think that then the lifting of making an uproar of the every antenna institute loaded service amount end corresponding with this antenna of described base station also is directly proportional; Therefore, in the present embodiment, described every antenna institute loaded service amount shared ratio E in total traffic, the end that just can be taken as described every antenna correspondence make an uproar lifting make an uproar the lifting total amount end of in shared ratio, then i root antenna institute loaded service amount shared ratio in total traffic is
E＝Ci/D＝Ci/ΣCi
In an embodiment of the present invention, the end of the every antenna correspondence that directly will calculate make an uproar lifting make an uproar the lifting total amount end of in shared ratio, as every antenna institute loaded service amount shared ratio E in total traffic, this is to obtain a kind of mode of ratio E in the method that provides of the embodiment of the invention, and is not intended to limit the scope of the invention;
Under some other scene, also may need for the end of described every antenna correspondence make an uproar lifting make an uproar the lifting total amount end of in shared ratio give certain weight, perhaps to the end of described every antenna correspondence make an uproar lifting make an uproar the lifting total amount end of in shared ratio carry out simple calculations (such as extraction of square root), and then obtain every antenna institute loaded service amount shared ratio E in total traffic.
306, according to described ratio E the upward signal that all antennas in the channel multiplexing system receive is merged.
The ratio E that the upward signal that every antenna is received is corresponding with this antenna multiplies each other, and then the multiplied result of all antenna correspondences is sued for peace, and can obtain total upward signal, the result after just the upward signal on all antennas being merged.
307, the upward signal after being combined carries out automatic gain control, makes its power meet the requirement of Base-Band Processing.
Above steps in the present embodiment can partly realize in the wireless base station Base-Band Processing, also can realize in base station radio frequency module.
The processing method of the upward signal that present embodiment provides, by the end of calculating every antenna correspondence make an uproar lifting make an uproar the lifting total amount end of in shared ratio obtain the information of every antenna institute bearer traffic shared ratio in total traffic, also just can adjust signal that every antenna receives shared ratio when carrying out up the merging in real time, according to described rate information upward signal is merged then, not only can realize upward signal being carried out dynamic ratio merging according to the actual volume of each antenna, and can be in the process of up merging the end of the less antenna of actual bearer traffic carrying capacity be made an uproar and control, reduce its influence to the upstream data demodulation.
Embodiment four:
As shown in Figure 4, the device that is used for the upward signal processing that present embodiment provides comprises acquiring unit 41 and merge cells 42; Particularly,
Acquiring unit 41 is used for obtaining every antenna institute bearer traffic at the shared respectively ratio of total traffic, particularly, can be directly to obtain every antenna institute bearer traffic being configured and storing away in advance in the past actual volume according to every antenna by the staff shared respectively ratio in total traffic, also can be dynamically to calculate described every antenna institute bearer traffic shared respectively ratio in total traffic according to the traffic carrying capacity of current each antenna; Merge cells 42 is used for according to described ratio the upward signal that all antennas receive being merged.
The device that is used for the upward signal processing that the embodiment of the invention provides, at first get access to the information of every piece antenna institute bearer traffic in total traffic the shared ratio relevant with actual volume, according to described rate information upward signal is merged then, thereby realize upward signal being carried out dynamic ratio merging according to the actual volume of each antenna.
Dynamically calculate described every antenna institute bearer traffic situation of shared ratio respectively in total traffic at above-mentioned acquiring unit 41 according to the traffic carrying capacity of current each antenna, acquiring unit 41 can have following two kinds of implementations:
First kind of implementation:
As shown in Figure 5, the acquiring unit in the present embodiment 41 further comprises statistical module 401, computing module 402 and determination module 403; Particularly,
At first, statistical module 401 is added up the in-band noise that described every antenna receives respectively in real time; Then, the in-band noise that calculates described every antenna correspondence by computing module 402 shared ratio in the in-band noise total amount; Afterwards, determination module 403 is determined described every antenna institute's bearer traffic shared ratio of difference in total traffic according to in-band noise shared ratio in the in-band noise total amount of described every antenna correspondence, particularly, can be the in-band noise of the described every antenna correspondence that directly computing module 402 calculated in the in-band noise total amount shared ratio as described every antenna institute bearer traffic shared respectively ratio in total traffic, also can be that in-band noise shared ratio in the in-band noise total amount of described every antenna correspondence that computing module 402 is calculated carries out some simple operations (such as, evolution) and then obtains described every antenna institute bearer traffic shared respectively ratio in total traffic.
Second kind of implementation:
As shown in Figure 6, the acquiring unit in the present embodiment 41 further comprises measurement module 411, statistical module 412, subtraction block 413, computing module 414 and determination module 415; Particularly,
At first, make an uproar in measurement module 411 end of measuring every antenna; Then, add up the in-band noise that following described every antenna receives respectively in real time by statistical module 412; Afterwards, the in-band noise that carries out described every antenna correspondence by subtraction block 413 deducts the operation that the end that obtains this antenna makes an uproar and promote of making an uproar of its end; At last, the end that calculates described every antenna correspondence by computing module 414 make an uproar lifting make an uproar the lifting total amount end of in shared ratio; At this moment, determination module 415 according to the end of described every antenna correspondence make an uproar lifting make an uproar the lifting total amount end of in shared ratio determine described every antenna institute bearer traffic shared respectively ratio in total traffic, particularly, can be make an uproar the end of the described every antenna correspondence that directly computing module 414 calculated lifting in making an uproar the lifting total amount end of at shared ratio as described every antenna institute bearer traffic shared respectively ratio in total traffic, also can be make an uproar the end of described every antenna correspondence that computing module 414 is calculated lifting make an uproar the lifting total amount end of in shared ratio carry out some simple operations (such as, evolution) and then obtain described every antenna institute bearer traffic shared respectively ratio in total traffic.
The device that is used for the upward signal processing in that present embodiment provides can also comprise gain unit 43, and the upward signal after this gain unit 43 is used to be combined carries out automatic gain control, makes upward signal power meet the requirement of Base-Band Processing.
The device that is used for the upward signal processing that provides in the present embodiment can be the wireless base station, also can be on the concrete module that is integrated in the wireless base station, such as baseband processing module or radio-frequency module.
The device that is used for the upward signal processing that present embodiment provides, connect the lifting of making an uproar of corresponding in-band noise or the end and obtain the information of every antenna institute bearer traffic shared ratio in total traffic by adding up every antenna, according to described rate information upward signal is merged then, not only can realize upward signal being carried out dynamic ratio merging according to the actual volume of each antenna, and can be in the process of up merging the end of the less antenna of actual bearer traffic carrying capacity be made an uproar and control, reduce its influence to the upstream data demodulation.
The processing method of the upward signal that the embodiment of the invention provides and device not only go for foregoing follow-on single-shot and overcharge system (OTSR), certainly can also be applicable to the channel multiplexing system that other are all, in existing repeater, thereby realize the dynamic ratio of upward signal in any channel multiplexing system is merged.
By the description of above execution mode, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential hardware platform, can certainly all implement by hardware.Based on such understanding, all or part of can the embodying that technical scheme of the present invention contributes to background technology with the form of software product, this computer software product can be stored in the storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (11)
1. the processing method of a upward signal is characterized in that, comprising:
Obtain every antenna institute bearer traffic shared ratio of difference in total traffic;
According to described ratio the upward signal that all antennas receive is merged.
2. the processing method of upward signal according to claim 1 is characterized in that, described upward signal is uplink baseband signal or up radiofrequency signal.
3. the processing method of upward signal according to claim 1 is characterized in that, the described every antenna institute bearer traffic shared ratio of difference in total traffic that obtains comprises:
Obtain the described every antenna institute's bearer traffic shared ratio of difference in total traffic that disposes and prestore according to actual volume.
4. the processing method of upward signal according to claim 1 is characterized in that, the described every antenna institute bearer traffic shared ratio of difference in total traffic that obtains comprises:
Add up the in-band noise that described every antenna receives respectively;
The in-band noise that calculates described every antenna correspondence shared ratio in the in-band noise total amount;
Determine described every antenna institute's bearer traffic shared ratio of difference in total traffic according to in-band noise shared ratio in the in-band noise total amount of described every antenna correspondence.
5. the processing method of upward signal according to claim 1 is characterized in that, the described every antenna institute bearer traffic shared ratio of difference in total traffic that obtains comprises:
Measuring the end of described every antenna makes an uproar;
Add up the in-band noise that described every antenna receives respectively;
Deduct its end with the in-band noise of described every antenna correspondence and make an uproar, the end that obtains this antenna lifting of making an uproar;
The end of calculating described every antenna correspondence make an uproar lifting make an uproar the lifting total amount end of in shared ratio;
According to the end of described every antenna correspondence make an uproar lifting make an uproar the lifting total amount end of in shared ratio determine described every antenna institute bearer traffic shared respectively ratio in total traffic.
6. according to the processing method of each described upward signal in the claim 1 to 5, it is characterized in that, also comprise:
Upward signal after being combined carries out automatic gain control.
7. one kind is used for the device that upward signal is handled, and it is characterized in that, comprising:
Acquiring unit is used for obtaining every antenna institute bearer traffic at the shared respectively ratio of total traffic;
Merge cells is used for according to described ratio the upward signal that all antennas receive being merged.
8. the device that is used for the upward signal processing according to claim 7 is characterized in that,
Described acquiring unit is used for obtaining according to actual volume configuration and the described every antenna institute bearer traffic that prestores at the shared respectively ratio of total traffic.
9. the device that is used for the upward signal processing according to claim 7 is characterized in that described acquiring unit comprises:
Statistical module is used to add up the in-band noise that described every antenna receives respectively;
Computing module is used for calculating the in-band noise of described every antenna correspondence at the shared ratio of in-band noise total amount;
Determination module is used for determining described every antenna institute bearer traffic shared ratio of difference in total traffic according to the in-band noise of described every antenna correspondence at the shared ratio of in-band noise total amount.
10. the device that is used for the upward signal processing according to claim 7 is characterized in that described acquiring unit comprises:
Measurement module, make an uproar in the end that is used to measure described every antenna;
Statistical module is used to add up the in-band noise that described every antenna receives respectively;
Subtraction block is used for in-band noise with described every antenna correspondence and deducts the end that obtains this antenna lifting of making an uproar of making an uproar of its end;
Computing module, the end that is used for the calculating described every antenna correspondence lifting shared ratio of lifting total amount of making an uproar the end of at of making an uproar;
Determination module is used for determining described every antenna institute bearer traffic respectively shared ratio in total traffic according to the end of the described every antenna correspondence lifting shared ratio of lifting total amount of making an uproar the end of at of making an uproar.
11. according to each described device that is used for the upward signal processing in the claim 7 to 10, it is characterized in that, also comprise:
Gain unit, the upward signal after being used to be combined carry out automatic gain control.
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| CN103368636A (en) * | 2012-03-26 | 2013-10-23 | 鼎桥通信技术有限公司 | Method and device for merging uplink signal |
| WO2014059792A1 (en) * | 2012-10-19 | 2014-04-24 | 华为技术有限公司 | Signal transmission method, system and device |
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