CN102083234A - Method and device for transmitting communication signal - Google Patents
Method and device for transmitting communication signal Download PDFInfo
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- CN102083234A CN102083234A CN2009102501808A CN200910250180A CN102083234A CN 102083234 A CN102083234 A CN 102083234A CN 2009102501808 A CN2009102501808 A CN 2009102501808A CN 200910250180 A CN200910250180 A CN 200910250180A CN 102083234 A CN102083234 A CN 102083234A
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Abstract
The embodiment of the invention discloses a method and device for transmitting a communication signal. An antenna is introduced into the house of a user, thereby ensuring that the TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) signal in the house has better application effects as compared with the traditional mode. The application mode is easiest for the engineering construction, and only needs to add a micro device into the house of the user without destroying the decorations in the house of the user.
Description
Technical field
The embodiment of the invention relates to communication technical field, particularly a kind of sending method of signal of communication and equipment.
Background technology
Each operator enters the full-service operation stage, the 3G wireless communication technology that wherein mobile service is used, the residential quarter covers becomes a very big difficult problem, at first residential quarter complex structure, partition wall are more, signal there is bigger attenuation, secondly its distribution is frequency range about 2G, and the space loss is that (Global System for Mobile Communications is GSM) about 4 of technology times for existing global system for mobile communications.
Therefore, the residential quarter is laid density according to existing base station, be difficult to guarantee that every business can satisfy the condition of signal strength signal intensity.
In current wireless communication solution, cover the residential block and still rely on outdoor antenna, the signal that improves in the sub-district by increase day line density covers.
And along with after the full-service operation startup, each operator strengthens wireless signal covering accident in the residential quarter except laying antenna, also can lay ethernet line and provide wired business of networking in resident family.
In the process that realizes the embodiment of the invention, the inventor finds that there is following problem at least in prior art:
Existing exterior aerial covers scheme, and the signal that the density of needs increase antenna could be improved in the sub-district covers.In the actual engineering construction of operator, considered that citizen were more and more stronger to environmental consciousness at that time, the antenna in the residential quarter is that very suffering is coordinated admission.And along with the raising of Building technology, the floor of building is more and more higher in the sub-district, and body of wall is more and more thicker, and is increasing to the attenuation of wireless signal.Therefore, (TimeDivision-Synchronous Code Division Multiple Access, TD-SCDMA) covering in the residential block is difficult to reach effect preferably to synchronous CDMA (Code Division Multiple Access) of time-division to use traditional exterior aerial scheme.
Therefore, only solution is exactly that the antenna micropower of TD-SCDMA signal with indoor distributed system is incorporated in the resident family.But the feeder line of indoor distributed system and antenna can destroy the finishing in the resident family, implement also very difficulty.
Summary of the invention
The embodiment of the invention provides a kind of sending method and equipment of signal of communication, and antenna is incorporated in the user family, can guarantee that the TD-SCDMA signal of family has the better application effect than traditional approach.
For achieving the above object, the embodiment of the invention provides a kind of sending method of signal of communication on the one hand, specifically may further comprise the steps:
The remote radio unit (RRU) router receives the wireless communication signals of Base Band Unit transmission and the wire communication signal that the cable network node sends respectively;
Described remote radio unit (RRU) router synthesizes unified wire communication signal with described wireless communication signals and wire communication signal;
Described remote radio unit (RRU) router sends to a plurality of wireless network access points with described unified wire communication signal by cable network, by each described wireless network access point described unified wire communication signal is separated, and isolated wireless communication signals is sent by wireless network.
Preferably, described remote radio unit (RRU) router receives the wireless communication signals of Base Band Unit transmission and the wire communication signal that the cable network node sends respectively, is specially:
Described remote radio unit (RRU) router connects the wireless communication signals that receives described Base Band Unit transmission by the light mouth;
Described remote radio unit (RRU) router receives the wire communication signal that described cable network node sends by an electricity mouthful connection.
Preferably, described remote radio unit (RRU) router sends to the process of a plurality of wireless network access points with described unified wire communication signal by cable network, is specially:
Described remote radio unit (RRU) router sends to a plurality of wireless network access points by resources different in the cable network with wire communication signal and the wireless communication signals that is comprised in the described unified wire communication signal;
Wherein, described different resource does not overlap each other, can be respectively the cable network resource that described remote radio unit (RRU) router is had.
On the other hand, the embodiment of the invention also provides a kind of remote radio unit (RRU) router, specifically comprises:
Receiver module is used for receiving respectively the wireless communication signals of Base Band Unit transmission and the wire communication signal that the cable network node sends;
Merge module, be connected with described receiver module, the wireless communication signals and the wire communication signal that are used for described receiver module is received synthesize unified wire communication signal;
Sending module, be connected with described merging module, be used for the unified wire communication signal that described merging module is generated is sent to a plurality of wireless network access points by cable network, by each described wireless network access point described unified wire communication signal is separated, and isolated wireless communication signals is sent by wireless network.
Preferably, described receiver module is used for receiving respectively the wireless communication signals of Base Band Unit transmission and the wire communication signal that the cable network node sends, and is specially:
Described receiver module connects the wireless communication signals that receives described Base Band Unit transmission by the light mouth;
Described receiver module receives the wire communication signal that described cable network node sends by an electricity mouthful connection.
Preferably, described sending module sends to the process of a plurality of wireless network access points with described unified wire communication signal by cable network, is specially:
Described sending module sends to a plurality of wireless network access points by resources different in the cable network with wire communication signal and the wireless communication signals that is comprised in the described unified wire communication signal;
Wherein, described different resource does not overlap each other, can be respectively the cable network resource that described remote radio unit (RRU) router is had.
On the other hand, the embodiment of the invention also provides a kind of sending method of signal of communication, specifically may further comprise the steps:
Wireless network access point receives the unified wire communication signal that described remote radio unit (RRU) router sends by cable network;
Described wireless network access point separates described unified wire communication signal, gets access to wire communication signal and wireless communication signals;
Described wireless network access point sends to each terminal with described wireless communication signals by wireless network.
Preferably, described wireless network access point receives described remote radio unit (RRU) router by the unified wire communication signal that cable network sends, and is specially:
Described wireless network access point receives unified wire communication signal by the different cable network resource of described remote radio unit (RRU) router.
Preferably, described wireless network access point separates described unified wire communication signal, gets access to wire communication signal and wireless communication signals, is specially:
Described wireless network access point is distinguished the wire communication signal and the wireless communication signals that wherein comprise, and the corresponding communication signal is separated according to the resource difference of the cable network that is used to receive unified wire communication signal.
Preferably, described wireless network access point sends to each terminal with described wireless communication signals by wireless network, is specially:
Described wireless network access point sends to each terminal by wireless network after described wireless communication signals is converted to radiofrequency signal.
On the other hand, the embodiment of the invention also provides a kind of wireless network access point, specifically comprises:
Receiver module is used to receive the unified wire communication signal that the remote radio unit (RRU) router sends by cable network;
Separation module is connected with described receiver module, is used for the unified wire communication signal that described receiver module is received and separates, and gets access to wire communication signal and wireless communication signals;
Sending module is connected with described separation module, is used for the isolated wireless communication signals of described separation module is sent to each terminal by wireless network.
Preferably, described receiver module is used to receive described remote radio unit (RRU) router by the unified wire communication signal that cable network sends, and is specially:
Described receiver module receives unified wire communication signal by the different cable network resource of described remote radio unit (RRU) router.
Preferably, described separation module separates described unified wire communication signal, gets access to wire communication signal and wireless communication signals, is specially:
Described separation module is distinguished the wire communication signal and the wireless communication signals that wherein comprise, and the corresponding communication signal is separated according to the resource difference of the cable network that is used to receive unified wire communication signal.
Preferably, described wireless network access point also comprises:
Modular converter is connected with described sending module with described separation module, is used for the isolated wireless communication signals of described separation module is converted to radiofrequency signal, and sends to each terminal by described sending module by wireless network.
Compared with prior art, the embodiment of the invention has the following advantages:
By using the technical scheme that the embodiment of the invention proposed, antenna is incorporated in the user family, the TD-SCDMA signal that can guarantee family has the better application effect than traditional approach, and, such application mode is to the difficulty minimum of engineering construction, in user family, only need to increase a micromodule equipment and get final product, can not destroy the finishing in the user family.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the sending method of a kind of signal of communication that the embodiment of the invention proposed;
Fig. 2 is the structural representation of a kind of remote radio unit (RRU) router that the embodiment of the invention proposed;
Fig. 3 is the schematic flow sheet of the sending method of a kind of signal of communication that the embodiment of the invention proposed;
Fig. 4 is the structural representation of a kind of wireless network access point that the embodiment of the invention proposed;
Fig. 5 is the schematic network structure of a kind of application scenarios that the embodiment of the invention proposed;
Fig. 6 is the schematic flow sheet of the sending method of the signal of communication under a kind of concrete application scenarios that the embodiment of the invention proposed;
Fig. 7 is a kind of data transmit path schematic diagram that the embodiment of the invention proposed.
Embodiment
In order to address the above problem, technical scheme proposed by the invention is in conjunction with the full-service operation strategy of current operator, ethernet line cloth is put into the present situation that wired business of networking is provided in the resident family at operator, proposed to be sent to baseband signal and the Internet data signal of TD-SCDMA in the resident family together by ethernet line, using equipment that radiofrequency signal is separated and changed into to the TD-SCDMA baseband signal then covers in the resident family, simultaneously, can also come out to provide normal wiring logging-on function business the Internet data Signal Separation.
Because ethernet line cloth is put in the resident family, a micromodule equipment only need be installed in user family get final product, very convenient concerning engineering construction, do not destroy the finishing in the resident family yet, the user is also more acceptant.
Baseband signal (Baseband Signal), be by information source (information source also claim to be sent out a terminal) send not through the raw electrical signal of ovennodulation (carrying out frequency spectrum shift and conversion), be characterized in that frequency is lower, signal spectrum has low-pass form near zero-frequency.
According to the feature of raw electrical signal, baseband signal can be divided into digital baseband signal and analog baseband signal (correspondingly, information source also is divided into digital source and analog source), and it is determined by information source.
That says is more popular, and baseband signal is exactly the direct signal of wanting information transmitted of having expressed that sends, and the sound wave of speaking such as us is exactly a baseband signal.
If a signal has comprised frequency and reached infinitely-great Alternating Component and possible direct current composition, then this signal is exactly a baseband signal.
Because the decay of baseband signal is little in short range, thereby signal content can not change.Therefore, when transmission range was nearer, computer network all adopted the baseband transmission mode.
As from the computer to the monitor, the signal of peripheral hardware such as printer is exactly baseband transmission.Most local area network (LAN) uses baseband transmission, as Ethernet, token-ring network.What common network design standard 10BaseT used is exactly baseband signal.
In order to realize technical scheme of the present invention, the embodiment of the invention has proposed a kind of sending method of signal of communication, and its schematic flow sheet specifically may further comprise the steps as shown in Figure 1:
Step S101, remote radio unit (RRU) router receive the wireless communication signals of Base Band Unit transmission and the wire communication signal that the cable network node sends respectively.
In concrete application scenarios, the realization flow of this step is specially:
(1) described remote radio unit (RRU) router connects the wireless communication signals that receives described Base Band Unit transmission by the light mouth.
The light mouth is the abbreviation of optical fiber interface, also can be referred to as: G mouth (meaning is the G optical fiber port)
Light machine room that mouth is applied to, a fiber bandwidth interface of main equipments such as rack.
Optical fiber can be used for audio frequency (sound card has light output), network (optical fiber is as transmission medium), disk (optical fiber replacement cable transmission data) or the like.
Optical fiber can be divided into monomode fiber and multimode fiber again, distinguishes as follows:
Monomode fiber and multimode fiber can be differentiated simply from the size of fibre core.The fibre core of monomode fiber is very little, and about 4～10um only transmits master mode.Can avoid modal dispersion fully like this, make transmission band very wide, transmission capacity is very big.This optical fiber is applicable to the optical fiber communication of big capacity, long distance.It is the inexorable trend of following optical fiber communication and lightwave technology development.
Multimode fiber is divided into multimode step-index optical fiber and graded index multimode optical fiber again.The former core diameter is bigger, and transmission mode is more, thereby bandwidth is narrower, and transmission capacity is less; Refractive index reduces along with the increase of radius in latter's fibre core, can obtain smaller modal dispersion, thereby the frequency band broad, and transmission capacity is bigger, generally all uses the latter at present.
Because the biography wave velocity difference of different mode light in the multimode fiber, so the transmission range of multimode fiber is very short.And monomode fiber just can be used on the non-relay optical communication.
In the optical fiber communication theory, optical fiber has the branch of single mode, multimode, and difference is:
1. monomode fiber core diameter little (about 10mm) only allows a mode transfer, and chromatic dispersion is little, is operated in long wavelength (1310nm and 1550nm), relative difficulty with the coupling of optical device.
2. multimode fiber core diameter big (62.5mm or 50mm) allows up to a hundred mode transfer, and chromatic dispersion is big, is operated in 850nm or 1310nm.Relatively easy with the coupling of optical device.
And, do not have the branch of single mode, multimode strictly speaking for light end module.
So-called single mode, multimode module, the optical device that refers to the employing of light end module with which kind of optical fiber cooperates can obtain optimum transfer characteristic.
Following difference is generally arranged:
1. the single mode module generally adopts the narrower LED of LD or spectrum line as light source, and coupling unit size and monomode fiber are worked good, can transmit when using the monomode fiber transmission more remote, the price comparison height.
2. multimode module generally adopts the lower LED of price as light source, and coupling unit size and multimode fiber are worked good, and price comparison is cheap.
(2) described remote radio unit (RRU) router receives the wire communication signal that described cable network node sends by an electricity mouthful connection.
The electricity mouth is the light mouth relatively, is meant the physical characteristic of flame damper, mainly refers to copper cable, is the signal of telecommunication of handling.The general network interface of present use has 100,000,000 electricity mouths and gigabit electricity mouth etc.
Step S102, described remote radio unit (RRU) router synthesize unified wire communication signal with described wireless communication signals and wire communication signal.
Step S103, described remote radio unit (RRU) router send to a plurality of wireless network access points with described unified wire communication signal by cable network, by each described wireless network access point described unified wire communication signal is separated, and isolated wireless communication signals is sent by wireless network.
In concrete application scenarios, described remote radio unit (RRU) router sends to the process of a plurality of wireless network access points with described unified wire communication signal by cable network, is specially:
Described remote radio unit (RRU) router sends to a plurality of wireless network access points by resources different in the cable network with wire communication signal and the wireless communication signals that is comprised in the described unified wire communication signal;
Wherein, described different resource does not overlap each other, can be respectively the cable network resource that described remote radio unit (RRU) router is had.
Compared with prior art, the embodiment of the invention has the following advantages:
By using the technical scheme that the embodiment of the invention proposed, antenna is incorporated in the user family, the TD-SCDMA signal that can guarantee family has the better application effect than traditional approach, and, such application mode is to the difficulty minimum of engineering construction, in user family, only need to increase a micromodule equipment and get final product, can not destroy the finishing in the user family.
In order to realize above-mentioned technical scheme, the embodiment of the invention also provides a kind of remote radio unit (RRU) router, and its structural representation specifically comprises as shown in Figure 2:
Sending module 23, be connected with described merging module 22, be used for the unified wire communication signal that described merging module 22 is generated is sent to a plurality of wireless network access points by cable network, by each described wireless network access point described unified wire communication signal is separated, and isolated wireless communication signals is sent by wireless network.
Preferably, described receiver module 21 is used for receiving respectively the wireless communication signals of Base Band Unit transmission and the wire communication signal that the cable network node sends, and is specially:
Described receiver module 21 connects the wireless communication signals that receives described Base Band Unit transmission by the light mouth;
Described receiver module 21 receives the wire communication signal that described cable network node sends by an electricity mouthful connection.
Preferably, described sending module 23 sends to the process of a plurality of wireless network access points with described unified wire communication signal by cable network, is specially:
Described sending module 23 sends to a plurality of wireless network access points by resources different in the cable network with wire communication signal and the wireless communication signals that is comprised in the described unified wire communication signal;
Wherein, described different resource does not overlap each other, can be respectively the cable network resource that described remote radio unit (RRU) router is had.
Compared with prior art, the embodiment of the invention has the following advantages:
By using the technical scheme that the embodiment of the invention proposed, antenna is incorporated in the user family, the TD-SCDMA signal that can guarantee family has the better application effect than traditional approach, and, such application mode is to the difficulty minimum of engineering construction, in user family, only need to increase a micromodule equipment and get final product, can not destroy the finishing in the user family.
On the other hand, the embodiment of the invention also provides a kind of sending method of signal of communication, and its schematic flow sheet specifically may further comprise the steps as shown in Figure 3:
Step S301, wireless network access point receive the unified wire communication signal that described remote radio unit (RRU) router sends by cable network;
In concrete application scenarios, the implementation procedure of this step is specially:
Described wireless network access point receives unified wire communication signal by the different cable network resource of described remote radio unit (RRU) router.
Step S302, described wireless network access point separate described unified wire communication signal, get access to wire communication signal and wireless communication signals;
In concrete application scenarios, the implementation procedure of this step is specially:
Described wireless network access point is distinguished the wire communication signal and the wireless communication signals that wherein comprise, and the corresponding communication signal is separated according to the resource difference of the cable network that is used to receive unified wire communication signal.
Step S303, described wireless network access point send to each terminal with described wireless communication signals by wireless network.
In concrete application scenarios, the implementation procedure of this step is specially:
Described wireless network access point sends to each terminal by wireless network after described wireless communication signals is converted to radiofrequency signal.
Radiofrequency signal (RF-Radio Frequency signal) is exactly through ovennodulation, has the electric wave of certain tranmitting frequency.
When wave frequency is lower than 100khz, electromagnetic wave can be absorbed by the face of land, can not form effective transmission, but when wave frequency is higher than 100khz, electromagnetic wave can be propagated in air, and through the ionospheric reflection of atmosphere outer rim, forms the long-distance transmissions ability, we call radio frequency to the frequency electromagnetic waves with long-distance transmissions ability, and english abbreviation is RF.
In order to propagate TV signal aloft, must be modulated into high frequency or radio frequency (RF-Radio Frequency) signal to the video composite video signal, each signal takies a channel, could propagate multi-channel tv programs simultaneously aloft like this and can not cause confusion.
Compared with prior art, the embodiment of the invention has the following advantages:
By using the technical scheme that the embodiment of the invention proposed, antenna is incorporated in the user family, the TD-SCDMA signal that can guarantee family has the better application effect than traditional approach, and, such application mode is to the difficulty minimum of engineering construction, in user family, only need to increase a micromodule equipment and get final product, can not destroy the finishing in the user family.
In order to realize above-mentioned technical scheme, the embodiment of the invention also provides a kind of wireless network access point, and its structural representation specifically comprises as shown in Figure 4:
Receiver module 41 is used to receive the remote radio unit (RRU) router by the unified wire communication signal that cable network sends, and is specially:
Described receiver module 41 receives unified wire communication signal by the different cable network resource of described remote radio unit (RRU) router.
Described separation module 42 is distinguished the wire communication signal and the wireless communication signals that wherein comprise, and the corresponding communication signal is separated according to the resource difference of the cable network that is used to receive unified wire communication signal.
Sending module 43 is connected with described separation module 42, is used for 42 isolated wireless communication signals of described separation module are sent to each terminal by wireless network.
In concrete application scenarios, described wireless network access point also comprises:
Modular converter 44 is connected with described sending module 43 with described separation module 42, is used for 42 isolated wireless communication signals of described separation module are converted to radiofrequency signal, and sends to each terminal by described sending module 43 by wireless network.
Compared with prior art, the embodiment of the invention has the following advantages:
By using the technical scheme that the embodiment of the invention proposed, antenna is incorporated in the user family, the TD-SCDMA signal that can guarantee family has the better application effect than traditional approach, and, such application mode is to the difficulty minimum of engineering construction, in user family, only need to increase a micromodule equipment and get final product, can not destroy the finishing in the user family.
Compared with prior art, the technical scheme that the embodiment of the invention proposed promotes existing TD-SCMDA network application ability, improves the covering power of system, the accuracy and the degree of depth that reinforcement covers.
Solved the difficult problem of the covering power deficiency in TD network zone such as in colleges and universities, residential block, system's constructive ability is more flexible, and adaptability is stronger, the Construction Party who fits in the TD system more to.
Under the same covering power, half can be reduced in the antenna point position, and the antenna disguise is higher, can alleviate peripheral resident's coordination difficulty, reduces to build and coordinates to drop into, and brings distinct economic.
Below, further combined with concrete example, the technical scheme of the embodiment of the invention is described.
The base station of TD-SCDMA system, Base Band Unit (Building Base band Unit, BBU) and remote radio unit (RRU) (Radio Remote Unit, RRU) separate, wherein BBU handles base-band data signal, be transferred to RRU through optical cable, RRU converts baseband digital signal to radiofrequency signal and aloft transmits.
3G network uses the distributed base station framework in a large number, needs to connect with optical fiber between RRU and the BBU.A BBU can support a plurality of RRU.Adopt BBU+RRU multichannel scheme, the indoor covering that can solve large stadium well.
Usually the interlayer of building inside has floor, and there is wall in the room, has living space between the indoor and indoor user and cuts apart, and BBU+RRU multichannel scheme is utilized this characteristic exactly.Large-scale stadium for surpassing 100,000 square metres can be divided into grandstand several sub-districts, and each sub-district is provided with several passages, the corresponding plate antenna of each passage.
Usually indoor distributed system adopts the electric distribution mode of cable, and the BBU+RRU scheme then adopts the distribution mode of Optical Fiber Transmission.Base band BBU concentrates and is placed on machine room, and RRU can be mounted to floor, adopts Optical Fiber Transmission between BBU and the RRU, and RRU is connected to antenna by coaxial cable and power splitter (coupler) etc. again, and promptly trunk adopts optical fiber, and branch road adopts coaxial cable.
For down direction: optical fiber is directly linked RRU from BBU, what transmit between BBU and the RRU is baseband digital signal, the base station signal that can control certain user is launched from the RRU passage of appointment like this, can reduce the interference to user on other passages of this sub-district so greatly.
For up direction: the user mobile phone signal is received by nearest passage, passes to the base station from this passage through optical fiber then, so also can reduce the interference between the user on the different passages greatly.The BBU+RRU scheme is very flexible for capacity configuration, and demand under the prerequisite that does not change RRU and indoor distributed system, is supported the dilatation of every passage from 1/6 carrier wave to 3 carrier waves by disposing BBU by measure.
Theory and practice confirms that this scheme has following characteristics: unique multichannel algorithm implementation space isolates, and can reduce interference; Covering and capacity can independently be planned; Reduction is to the dependence of trunk amplifier; Baseband capabilities can realize sharing, and the dilatation ability is big; Optical fiber is lossless, and trunk lays easy, and RRU disposes flexibly.
But shortcoming is need to increase photoelectric conversion unit, and optical fiber is easier to damage, and needs to adopt armouring.The difference of TD-SCDMA indoor distributed system and other 3G is:
TD-SCDMA be time division duplex (Time Division Duplexing, TDD);
Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, WCDMA), CDMA2000 be Frequency Division Duplexing (FDD) (Frequency Division Duplex, FDD);
The technical system of air interface between the two is also different, and therefore, its indoor distributed system is also different.
Mainly be the information source difference in the indoor distributed system, information source mainly comprises macro base station, little base station, zoom out four kinds of type base station and repeaters.
(1) macrocellular information source
Be mainly used in telephone traffic height, the big j in overlay area and possess the important building such as high-grade office building j megastore, star hotel, shop, Olympic Stadium of machine room condition.
(2) microcellulor information source
Be mainly used in medium telephone traffic, small and medium construction thing.
(3) zoom out the type information source
For big capacity base station, be mainly used in important buildings such as the higher office building of telephone traffic, market, hotel, especially be fit to the covering of groups of building.
(4) direct amplification machine information source
Be mainly used in the sub-district that the overlay area disperses, mend the places such as elevator, basement of blind covering.
The difference of 3G network and 2G network is because 3G network is operated in the 2000MHz frequency range, the propagation loss of electric wave is bigger than 2G frequency range, the signal penetration capacity than 2G frequency range a little less than, and the high-speed data service of 3G needs stronger signal strength signal intensity and signal quality, depending merely on outdoor macro base station solves indoor covering and can not meet the demands, usually there are local blind area in low layer depths, underground garage at skyscraper, need to build active and passive indoor distributed system usually.
The TD-SCDMA industry is full-fledged at present and begin extensive commercialization.TD-SCDMA has adopted intelligent antenna technology, so inevitably bring the too much problem of feeder line, feeder line is many, difficulty of construction big and the problem of site resource acquisition difficulty and the Node B that adopts BBU (Base Band Unit)+RRU (the Remote Radio Unit) framework that separates with radio frequency part based on baseband portion can effectively solve, and has become the standard solution of industry on-premise network.
The RRU technical characterstic is that the base station is divided into the near-end machine is that radio base band control (Radio Server) and remote termination are that radio frequency zooms out (RRU) two parts, connect by optical fiber between the two, its interface is based on open C PRI or IR interface, can stably be connected with mainstream vendor's equipment.
RS can be installed in suitable machine room position, RRU is installed in antenna end, like this, the part of former base station module is separated,, loaded down with trivial details maintenance work can be simplified to the RS end by RS is separated with RRU, a RS can connect several RRU, both save the space, reduced again that cost being set, improved networking efficient.
Simultaneously, the interface that connects between the two adopts optical fiber, and loss is few.
3G network uses the distributed base station framework in a large number, needs to connect with optical fiber between RRU (radio frequency remoto module) and the BBU (baseband processing unit).A BBU can support a plurality of RRU.
Adopt BBU+RRU multichannel scheme, the indoor covering that can solve large stadium well.
And for the wiring logging-on function business, be that the transmission technology with advanced persons such as EPON combines with ethernet technology, the EPON optical transmission converts the Ethernet signal of telecommunication to through switch then and is sent in the user family to corridor.
The technical program is introduced RHUB (RRU switch) and two kinds of equipment of TAP (TD-SCDMA access point) in conjunction with the characteristics of above two kinds of technology.
At first, provide the applied concrete scene of the embodiment of the invention, as shown in Figure 5, being described as follows of the new equipment entity of introducing:
RHUB is different from traditional switch, and RHUB equipment has two input ports, input be respectively the baseband signal (light mouth) of TD BBU and wiring logging-on function signal (electricity mouthful), TD and data service signal are synthesized wire signal export from ethernet user's line.
TAP equipment is converted to radiofrequency signal with TD-SCDMA from baseband signal, isolates the data service signal.
Compared with prior art, the embodiment of the invention has the following advantages:
By using the technical scheme that the embodiment of the invention proposed, antenna is incorporated in the user family, the TD-SCDMA signal that can guarantee family has the better application effect than traditional approach, and, such application mode is to the difficulty minimum of engineering construction, in user family, only need to increase a micromodule equipment and get final product, can not destroy the finishing in the user family.
Concrete technical scheme of the present invention specifically may further comprise the steps as shown in Figure 6:
Step S601, RHUB merge into TD baseband signal+data service signal with TD baseband signal and data service signal, export from ethernet user's line.
RHUB is on exchanged form, and the wiring logging-on function signal is consistent with conventional switch, by the port of next jumping of physical address recognition data; And the BBU baseband signal is with regard to similar and traditional hub, and the signal of BBU will be sent to all RRU.
In concrete application scenarios, with 8 core ethernet line line structures is that example describes technical solution of the present invention, under this kind application scenarios, ethernet line has 8 cores, wherein the wiring logging-on function signal uses wherein 4 cores, remaining 4 cores can be used for transmitting the TD-SCDMA baseband signal, guarantee existing business is not produced interference.
Step S602, TAP equipment are TD radiofrequency signal+data service signal with TD baseband signal+data service conversion of signals.
TAP is with TD-SCDMA baseband signal in 8 cores and wiring logging-on function Signal Separation, and TD-SCDMA baseband signal wherein changes into radiofrequency signal, is used for providing the signal of the TD-SCDMA business of resident family to cover; And the wiring logging-on function Signal Separation changes into the RJ45 port after coming out, and the interface of online is provided for the user.
The RJ45 interface is generally used for transfer of data, has eight cores and makes, and the modal network interface card interface that is applied as, RJ45 are types of various different joints.
For example: RJ11 also is a type of joint, but it is to use on the phone, and the RJ45 head is followed according to the different method of the ordering of line two kinds, a kind ofly be that orange is white, orange, green white, blue, blue white, green, palm fibre is white, brown; Another kind be green white, green, orange is white, blue, blue white, orange, palm fibre are white, brown; Therefore, use the line of RJ45 joint also to have two kinds promptly: direct-through line, interleave line.
10 100base tx RJ45 interfaces are Ethernet interfaces of using always, support 10,000,000 and 100,000,000 adaptive network connection speeds,
On the network interface card and the Hub outward appearance that goes up interface be 8 core female plug seats.
The base band of TAP, radiofrequency signal translation function are similar to RRU equipment.But consider that it only covers a cover resident room, transmitting power is little more a lot of than RRU, only need guarantee that fringing field is powerful in-80dB.
Its data transmit path schematic diagram as shown in Figure 7.
Compared with prior art, the embodiment of the invention has the following advantages:
By using the technical scheme that the embodiment of the invention proposed, antenna is incorporated in the user family, the TD-SCDMA signal that can guarantee family has the better application effect than traditional approach, and, such application mode is to the difficulty minimum of engineering construction, in user family, only need to increase a micromodule equipment and get final product, can not destroy the finishing in the user family.
Through the above description of the embodiments, those skilled in the art can be well understood to the embodiment of the invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, the technical scheme of the embodiment of the invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) each implements the described method of scene to carry out the embodiment of the invention.
It will be appreciated by those skilled in the art that accompanying drawing is a preferred schematic diagram of implementing scene, module in the accompanying drawing or flow process might not be that the enforcement embodiment of the invention is necessary.
It will be appreciated by those skilled in the art that the module in the device of implementing in the scene can be distributed in the device of implementing scene according to implementing scene description, also can carry out respective change and be arranged in the one or more devices that are different from this enforcement scene.The module of above-mentioned enforcement scene can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of implementing scene just to description.
More than disclosed only be the several concrete enforcement scene of the embodiment of the invention, still, the embodiment of the invention is not limited thereto, any those skilled in the art can think variation all should fall into the protection range of the embodiment of the invention.
Claims (14)
1. the sending method of a signal of communication is characterized in that, specifically may further comprise the steps:
The remote radio unit (RRU) router receives the wireless communication signals of Base Band Unit transmission and the wire communication signal that the cable network node sends respectively;
Described remote radio unit (RRU) router synthesizes unified wire communication signal with described wireless communication signals and wire communication signal;
Described remote radio unit (RRU) router sends to a plurality of wireless network access points with described unified wire communication signal by cable network, by each described wireless network access point described unified wire communication signal is separated, and isolated wireless communication signals is sent by wireless network.
2. the method for claim 1 is characterized in that, described remote radio unit (RRU) router receives the wireless communication signals of Base Band Unit transmission and the wire communication signal that the cable network node sends respectively, is specially:
Described remote radio unit (RRU) router connects the wireless communication signals that receives described Base Band Unit transmission by the light mouth;
Described remote radio unit (RRU) router receives the wire communication signal that described cable network node sends by an electricity mouthful connection.
3. the method for claim 1 is characterized in that, described remote radio unit (RRU) router sends to the process of a plurality of wireless network access points with described unified wire communication signal by cable network, is specially:
Described remote radio unit (RRU) router sends to a plurality of wireless network access points by resources different in the cable network with wire communication signal and the wireless communication signals that is comprised in the described unified wire communication signal;
Wherein, described different resource does not overlap each other, can be respectively the cable network resource that described remote radio unit (RRU) router is had.
4. a remote radio unit (RRU) router is characterized in that, specifically comprises:
Receiver module is used for receiving respectively the wireless communication signals of Base Band Unit transmission and the wire communication signal that the cable network node sends;
Merge module, be connected with described receiver module, the wireless communication signals and the wire communication signal that are used for described receiver module is received synthesize unified wire communication signal;
Sending module, be connected with described merging module, be used for the unified wire communication signal that described merging module is generated is sent to a plurality of wireless network access points by cable network, by each described wireless network access point described unified wire communication signal is separated, and isolated wireless communication signals is sent by wireless network.
5. remote radio unit (RRU) router as claimed in claim 4 is characterized in that, described receiver module is used for receiving respectively the wireless communication signals of Base Band Unit transmission and the wire communication signal that the cable network node sends, and is specially:
Described receiver module connects the wireless communication signals that receives described Base Band Unit transmission by the light mouth;
Described receiver module receives the wire communication signal that described cable network node sends by an electricity mouthful connection.
6. remote radio unit (RRU) router as claimed in claim 4 is characterized in that, described sending module sends to the process of a plurality of wireless network access points with described unified wire communication signal by cable network, is specially:
Described sending module sends to a plurality of wireless network access points by resources different in the cable network with wire communication signal and the wireless communication signals that is comprised in the described unified wire communication signal;
Wherein, described different resource does not overlap each other, can be respectively the cable network resource that described remote radio unit (RRU) router is had.
7. the sending method of a signal of communication is characterized in that, specifically may further comprise the steps:
Wireless network access point receives the unified wire communication signal that described remote radio unit (RRU) router sends by cable network;
Described wireless network access point separates described unified wire communication signal, gets access to wire communication signal and wireless communication signals;
Described wireless network access point sends to each terminal with described wireless communication signals by wireless network.
8. method as claimed in claim 7 is characterized in that, described wireless network access point receives described remote radio unit (RRU) router by the unified wire communication signal that cable network sends, and is specially:
Described wireless network access point receives unified wire communication signal by the different cable network resource of described remote radio unit (RRU) router.
9. method as claimed in claim 7 is characterized in that, described wireless network access point separates described unified wire communication signal, gets access to wire communication signal and wireless communication signals, is specially:
Described wireless network access point is distinguished the wire communication signal and the wireless communication signals that wherein comprise, and the corresponding communication signal is separated according to the resource difference of the cable network that is used to receive unified wire communication signal.
10. method as claimed in claim 7 is characterized in that, described wireless network access point sends to each terminal with described wireless communication signals by wireless network, is specially:
Described wireless network access point sends to each terminal by wireless network after described wireless communication signals is converted to radiofrequency signal.
11. a wireless network access point is characterized in that, specifically comprises:
Receiver module is used to receive the unified wire communication signal that the remote radio unit (RRU) router sends by cable network;
Separation module is connected with described receiver module, is used for the unified wire communication signal that described receiver module is received and separates, and gets access to wire communication signal and wireless communication signals;
Sending module is connected with described separation module, is used for the isolated wireless communication signals of described separation module is sent to each terminal by wireless network.
12. wireless network access point as claimed in claim 11 is characterized in that, described receiver module is used to receive described remote radio unit (RRU) router by the unified wire communication signal that cable network sends, and is specially:
Described receiver module receives unified wire communication signal by the different cable network resource of described remote radio unit (RRU) router.
13. wireless network access point as claimed in claim 11 is characterized in that, described separation module separates described unified wire communication signal, gets access to wire communication signal and wireless communication signals, is specially:
Described separation module is distinguished the wire communication signal and the wireless communication signals that wherein comprise, and the corresponding communication signal is separated according to the resource difference of the cable network that is used to receive unified wire communication signal.
14. wireless network access point as claimed in claim 11 is characterized in that, also comprises:
Modular converter is connected with described sending module with described separation module, is used for the isolated wireless communication signals of described separation module is converted to radiofrequency signal, and sends to each terminal by described sending module by wireless network.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102501808A CN102083234A (en) | 2009-11-30 | 2009-11-30 | Method and device for transmitting communication signal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102501808A CN102083234A (en) | 2009-11-30 | 2009-11-30 | Method and device for transmitting communication signal |
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| CN102083234A true CN102083234A (en) | 2011-06-01 |
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| CN2009102501808A Pending CN102083234A (en) | 2009-11-30 | 2009-11-30 | Method and device for transmitting communication signal |
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| CN102438248A (en) * | 2011-09-29 | 2012-05-02 | 上海交通大学 | Method for solving radio frequency mutual interference of multi-mode multi-connected user equipment |
| CN103874081A (en) * | 2014-03-11 | 2014-06-18 | 刘松林 | Downlink and uplink transmission method and transmission device for mobile communication signals in built-up area |
| CN104469826A (en) * | 2013-09-13 | 2015-03-25 | 中国移动通信集团海南有限公司 | Antenna scheduling method and system |
| CN105451272A (en) * | 2014-09-17 | 2016-03-30 | 中兴通讯股份有限公司 | Data interaction method, building baseband unit, radio remote unit and R-Hub |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102438248A (en) * | 2011-09-29 | 2012-05-02 | 上海交通大学 | Method for solving radio frequency mutual interference of multi-mode multi-connected user equipment |
| CN102438248B (en) * | 2011-09-29 | 2014-06-18 | 上海交通大学 | Method for solving radio frequency mutual interference of multi-mode multi-connected user equipment |
| CN104469826A (en) * | 2013-09-13 | 2015-03-25 | 中国移动通信集团海南有限公司 | Antenna scheduling method and system |
| CN103874081A (en) * | 2014-03-11 | 2014-06-18 | 刘松林 | Downlink and uplink transmission method and transmission device for mobile communication signals in built-up area |
| CN105451272A (en) * | 2014-09-17 | 2016-03-30 | 中兴通讯股份有限公司 | Data interaction method, building baseband unit, radio remote unit and R-Hub |
| JP2017532875A (en) * | 2014-09-17 | 2017-11-02 | ゼットティーイー コーポレーションＺｔｅ Ｃｏｒｐｏｒａｔｉｏｎ | Data exchange method, baseband processing unit, wireless remote unit and relay unit |
| CN111447075A (en) * | 2019-01-17 | 2020-07-24 | 中国移动通信有限公司研究院 | Indoor distribution system, deployment method and device |
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Application publication date: 20110601 |