CN103139786A - Relaying end system and relaying method of multimode digital radio frequency remote system - Google Patents
Relaying end system and relaying method of multimode digital radio frequency remote system Download PDFInfo
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Abstract
The invention discloses a relaying end system of a multimode digital radio frequency remote system. The relaying end system comprises a first mode relaying end, a second mode relaying end and a remote terminal. The first mode relaying end is connected with a base station of the mode or a radio frequency coupling access unit. The second mode relaying end is connected with a base station of the mode or a radio frequency coupling access unit. The first mode relaying end and the second mode relaying end are connected. The first mode relaying end and the second mode relaying end are connected with the remote terminal. Due to separate design of the relaying ends with different modes, the technical problems that when the base stations with signals of different modes or remote radio units (RRU) are not placed on the same geographic position, the signals of the different modes can be guided into a signal blind area or a weak area can be solved, flexibility of a communication network is improved, and influence on a communication system of equipment fault can be effectively prevented. The invention further provides a relaying method of the multimode digital radio frequency remote system.
Description
Technical field
The present invention relates to the mobile communication signal Covering domain, relate in particular to relay system and the trunking method of multimode digital radio frequency remote.
Background technology
In mobile communications network, digital RF far-drawing system is as the extension of base station in overlay network and replenish, and can improve signal quality, solves weak signal area and blind area Special Handle of Drop Question, improves user's experience.Therefore, digital RF far-drawing system becomes the major part that mobile communications network covers day by day.
In mobile communications network now, the development of 2G network forward 3G network and evolution.In a period of time, certainly will there be the network coexisted situation of 2G internet and 3G.At present, the mobile operator of China has separately 2G internet and 3G network as China Mobile and CHINAUNICOM.Therefore, possess simultaneously the multimode digital radio frequency remote of 2G and 3G and other standard, will carry out many nets to mobile operator and build together and save a large amount of costs, the engineering that also can build together for many nets be brought very large facility, has market prospects widely.
Having had at present the technical scheme of multimode digital radio frequency remote, is that CN1866890A and publication number are that the Chinese invention patent application of CN1863367A discloses respectively wired and wireless multimode network communication system as publication number.It has included first mode equipment and the second pattern device, wherein the second pattern device comprises proximal device and remote equipment, the proximal device of the second pattern device is arranged in first mode equipment, and the remote equipment of the second pattern device is independent of outside first mode equipment.Be sent in remote equipment again in first mode equipment by the signal gathering with the proximal device of first mode equipment and the second pattern device.The signal that these two technical schemes can solve different mode is selected the problem of optimum site, as 2G base station and NodeB are arranged on its optimum site.But, due to district or blind area a little less than to signal when carrying out signal optimizing, often need the different mode signal that is in different sites is introduced simultaneously, and the base station of these different mode signals (as 2G and 3G) or RRU even differ several kilometers far away sometimes, and therefore above-mentioned two technical schemes can't resolve the problem that the signal of various modes is optimized is carried out in district or blind area a little less than signal.Simultaneously, on the networking topology, the technical scheme that these two patents disclose is the star net forming mode, is unfavorable for carrying out the multiple networking modes such as annular, chrysanthemum chain.Publication number is the 3G (Third Generation) Moblie direct discharging station that the Chinese invention patent of CN1945999A discloses a kind of multisystem compatible, and its technical scheme converges on a unit by the signal with the multichannel different systems or distributes to reaching the purpose of transmission different systems signal.Therefore but because it only has a near-end machine, can only be arranged on a place, can not solve the problem that the signal of the different mode of different sites is introduced simultaneously; On the other hand, this patent application is the direct discharging station of simulation and be not our described digital system, and their signal can only be that radiofrequency signal is closed road rather than data packing.
As seen, in existing multimode far-drawing system, generally be in the characteristics in different geographical position due to the signal of not considering different mode, the ethod of remittance of its signal can not solve simultaneously the signal of the different mode on diverse geographic location is introduced the problem that covers simultaneously, simultaneously, the flexible networking that also is unfavorable for system.
Summary of the invention
Embodiments of the invention provide the relay system of multimode digital radio frequency remote, the multi-modulation scheme signal that can realize being in diverse geographic location is one by one by the protocol encapsulation transmission that makes progress, mutual and downward broadcasting, realize the flexible networking of far-drawing system mutually.
The relay system of multimode digital radio frequency remote of the present invention, comprise first mode relay, the second pattern relay and remote termination, described first mode relay connects base station or the RRU (Radio Remoto Unit long-distance radio frequency unit) of this pattern, described the second pattern relay connects base station or the RRU of this pattern, described first mode relay is connected with the second pattern relay, and described first mode relay and/or the second pattern relay also connect remote termination.
The relay system of multimode digital radio frequency remote of the present invention, its signal transmission form is as follows:
Downstream signal direction: the downstream signal of this pattern base station of the relay direct-coupling of each pattern or RRU, and transfer the signal to the in the relay of other patterns, simultaneously, the signal that also the relaying terminal of the downstream signal of its coupling and other patterns transmitted of this relay carries out being sent in coupled remote termination after framing.Remote termination is isolated its framing signal that receives the signal of different mode, and sends to the area of coverage after amplifying.
The upward signal direction: remote termination receives and described signal is carried out framing after the signal of different mode and be transferred to the first mode relay and the second pattern relay, the signal of different mode will be isolated in the relay of each pattern, and the signal of other patterns is sent in the relay of corresponding modes, after making up, the signal of this pattern that the signal that belongs to this pattern that the relay of each pattern is isolated out and the relay of other patterns send sends in the base station or RRU of corresponding modes.
As optimal way of the present invention, the relay of described different mode can connect a remote termination simultaneously, also can be respectively with are connected remote termination and connect, owing to interconnecting between each relay, each remote termination all be connected the relay and connect.Each relay can connect at most six remote terminations.
Embodiments of the invention also provide a kind of trunking method of multimode digital radio frequency remote: comprise downstream signal trunking method and upward signal trunking method, described downstream signal trunking method comprises the steps:
The distribution of S11, downstream signal is mutual: the relay of different mode is distributed to the downstream signal of this pattern of its coupling the relay of other patterns after digital processing, and receives the downstream signal of other patterns of the relay of other patterns sending;
S12, downstream signal framing: the downstream signal that the relay of different mode will send through the relay of the downstream signal of this pattern of digital processing and other patterns carries out framing;
The transmission of S13, downstream signal: the downstream signal of the relay of each pattern after with framing transfers to remote termination;
S14, downstream signal separate: remote termination is isolated the downstream signal of framing the downstream signal of different mode:
S15, downstream signal cover: remote termination sends to the area of coverage after the downstream signal of isolated different mode is amplified.
Described upward signal trunking method comprises the steps
S21, upward signal framing: remote termination amplifies the upward signal of the different mode that receives, carry out framing after digital processing through radio frequency, obtains the framing signal;
S22, uplink signal transmissions: the upward signal of remote termination after with framing is sent to the relay that is connected with this remote termination;
S23, upward signal separate: the upward signal that different mode is isolated in digital processing is carried out with the frame signal that connected remote termination sends in the relay of different mode;
The distribution of S24, upward signal: the relay of different mode is distributed to the upward signal of other patterns in the relay of associative mode, and accepts the upward signal of this pattern that other patterns relays sends over;
S25, upward signal report: the upward signal of this pattern that the upward signal of its isolated this pattern after digital processing and other patterns relays send is made up in the relay of different mode, and the upward signal after combination reports after radio frequency amplifies in the base station or RRU of this pattern relay associative mode.Compared with prior art, the present invention has the following advantages and beneficial effect:
1, by being divided, the relay of different mode is arranged, can solve the base station of different mode signal or RRU and introduce simultaneously the signal of required mode to the problem in the area that needs to cover when far apart, make the application of this multimode digital radio frequency remote more extensive.
2, due to the relay of having adopted a plurality of different modes, the relay of each different mode is connected to each other simultaneously, so be only also the fault of present mode when path fault appears in the relay of one of them pattern, and the relay and the remote termination that do not affect other pattern form communication link, when an only remaining relay, remote termination is equivalent to the remote termination of common single mode, does not still affect the communication link of this corresponding pattern in relay.The work work that also can be connected with the remote termination of single mode that can be connected with the remote termination of multimode of the relay of native system.When therefore, the present invention can prevent effectively that the relay of near-end from breaking down on the impact of system.
3, the relay due to different mode can connect same remote termination jointly, also can connect respectively a plurality of remote terminations, can realize the networking modes such as annular, chrysanthemum chain, star, networking mode is flexible, each relay can connect maximum six remote terminations simultaneously, can effectively enlarge the scope of the network coverage.
Description of drawings
Fig. 1 is the relay system configuration schematic diagram of multimode digital radio frequency remote of the present invention;
Fig. 2 is relay structural representation in the relay system of multimode digital radio frequency remote of the present invention, and wherein Fig. 2 A is first mode relay structural scheme of mechanism, and Fig. 2 B is the second pattern relay structural scheme of mechanism;
Fig. 3 is remote termination structural representation in the relay system of multimode digital radio frequency remote of the present invention;
Fig. 4 is the DCS network with the 2G pattern, the WCDMA network of 3G pattern and the relay system configuration schematic diagram of the multimode digital radio frequency remote that WLAN forms;
Fig. 5 is the downstream signal schematic flow sheet of the trunking method of multimode digital radio frequency remote of the present invention;
Fig. 6 is the upward signal flow process schematic diagram of the trunking method of multimode digital radio frequency remote of the present invention.
Embodiment
For relay system and the trunking method thereof of clearer explanation multimode digital radio frequency remote provided by the present invention, below in conjunction with accompanying drawing, the present invention is described in further detail with embodiment.But embodiments of the present invention are not limited to this.
As shown in Figure 1, the relay system of multimode digital radio frequency remote of the present invention, comprise first mode relay 2, the second pattern relay 3 and remote termination 4, described first mode relay 2 connects base station or the RF-coupled access unit 11 of this pattern, described the second pattern relay 3 connects base station or the RF-coupled access unit 12 of these patterns, described first mode relay 2 is connected with the second pattern relay 3, described first mode relay 2 be connected pattern relay 3 and can make up rear common connection remote termination 4, also can connect separately separately remote termination 4.
As shown in Fig. 2 A, first mode relay 2 comprises first mode radio frequency unit 21, digital processing element 22 and monitoring unit 23, first mode radio frequency unit 21 is connected with base station or the RRU11 of this pattern, be used for the downstream signal of coupling base station or RRU11 and to the base station or RRU11 transmit the upward signal of corresponding modes.The output of first mode radio frequency unit 21 connects digital processing element 22, and the output of digital processing element 22 connects the second pattern relaying terminal 3 by photoelectric conversion module 24, perhaps connects respectively the second pattern relay 3 and remote termination 4.Monitoring unit 23 is used for first mode relaying terminal 2 is monitored.
As shown in Fig. 2 B, the second pattern relay 3 comprises the second pattern radio frequency radio frequency unit 31, digital processing element 32 and monitoring unit 33, the second pattern radio frequency unit 31 is connected with base station or the RRU12 of this pattern, be used for the downstream signal of coupling base station or RRU12 and to the base station or RRU12 transmit the upward signal of corresponding modes.The output of the second pattern radio frequency unit 31 connects digital processing element 32, and the output of digital processing element 32 connects first mode relay 2 by photoelectric conversion module 34, perhaps connects respectively first mode relay 2 and remote termination 4.Monitoring unit 33 is used for the second pattern relaying terminal 3 is monitored.
As shown in Figure 3, remote termination comprises digital processing element 41, radio frequency unit 42, power amplification unit 43, the multiband filter 44 that connects successively, also comprises monitoring unit 45, clock unit 46; Described monitoring unit 45 is connected 44 with digital processing element 41, radio frequency unit 42, power amplification unit 43, multiband filter respectively, described digital processing element 41 by photoelectric conversion module 47 and first mode relay 2 be connected pattern relay 3 and be connected, described multiband filter 44 passes through antenna 48 and is connected with user terminal.
Described digital processing element 22,32,41 is the multi-modulation scheme digital processing element, and it can go out the signal of communication of all patterns.
The relay system of multimode digital radio frequency remote of the present invention can also comprise the three-mode relay, the three-mode relay has the structure identical with the first mode relay, and respectively with the first mode relay be connected the pattern relay and connect, be connected with remote termination simultaneously.Theoretically, the relay system of multimode digital radio frequency remote of the present invention can also comprise the four-mode relay, and the 5th pattern relay etc. is the multi-mode relay more, to satisfy the purpose of different mode networks common networking and optimization.But after increasing more multimodal relay, the complexity of system also increases accordingly, and for reaching optimum networking effect, the relay of described different mode is limited to be no more than four.
Connect with the remote termination that is connected after the relay of described different mode can be made up, also can connect with the remote termination of being connected respectively.
described first mode, the second pattern, three-mode, four-mode etc. comprises GSM (the Global System for Mobile communication of 2G, the global system for mobile communications network), CDMA (Code Division Multiple Access, code division multiple access) network, DCS (Distributed Control System, dcs) WCDMA of internet and 3G (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)) network, CDMA2000 (Code Division Multiple Access 2000, CDMA 2000) network and TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, TD SDMA) network and LTE (Long Term Evolution, Long Term Evolution), Wimax (Worldwide Interoperability for Microwave Access, worldwide interoperability for microwave access) and the 4G network medium.
Embodiment 1
The below is example with DCS network and WCDMA network and WLAN (Wireless Local Area Networks, WLAN), and the relay system of multimode digital radio frequency remote of the present invention is described in detail.
As shown in Figure 4, the relay system of multimode digital radio frequency remote of the present invention comprises DCS relay and WCDMA relay and remote termination.Described DCS relay comprises DCS radio frequency unit, digital processing element and monitoring unit.The DCS radio frequency unit connects DCS base station or RRU, be used for from the DCS base station or RRU coupling DCS downstream signal and to the DCS base station or RRU transmit the DCS upward signal.The output of DCS radio frequency unit connects digital processing element, and the output of digital processing element connects respectively WCDMA relay and remote termination by photoelectric conversion module.Monitoring unit is used for monitoring DCS relaying terminal and works.
Described WCDMA relay comprises WCDMA radio frequency unit, digital processing element and monitoring unit.The WCDMA radio frequency unit connects WCDMA base station or RRU, be used for from the WCDMA base station or RRU coupling WCDMA downstream signal and to the WCDMA base station or RRU transmit the WCDMA upward signal.The output of WCDMA radio frequency unit connects digital processing element, and the output of digital processing element is distinguished DCS relay and remote termination by photoelectric conversion module.Monitoring unit is used for monitoring DCS relaying terminal and works.
Remote termination comprises digital processing element, radio frequency unit, power amplification unit, the multiband filter that connects successively, also comprises monitoring unit, clock unit; Described monitoring unit is connected with digital processing element, radio frequency unit, power amplification unit, multiband filter respectively, described digital processing element is connected by photoelectric conversion module and DCS relay or WCDMA relay, and described multiband filter is connected with user terminal by antenna.
Connected by optical fiber by photoelectric conversion module OP between two relays, to realize the mutual of the communication information, reference clock, monitor message.WLAN transmission is to provide a transparent baseband transmission link between DCS relay, WCDMA relay and remote termination, to take full advantage of existing fiber resource.
DCS relay and WCDMA relay all can independent traction multimode remote termination, the perhaps remote termination of traction multimode after the combination.The quantity of traction can realize one dragging six (i.e. six remote terminations of a relay traction, can traction 12) here, and can support multiple networking mode, as star, chrysanthemum chain, annular and mixed networking etc.Wherein the annular networking mode realizes by the remote termination of different relay institute traction, because relay and remote termination can also attach the WLAN function, therefore also can support simultaneously the baseband transmission of WLAN.Described baseband transmission is by reserving optical interface (being photoelectric conversion module OP), will be sent in the lump remote termination from the signal that WLAN signal, local signal and other relay that switch or wireless access points direction transmit are transmitted.Described relay is connected by optical fiber and realizes information interaction between different relays; The information that transmits in optical fiber comprises signal of communication, system monitoring information and each relay clock signal of different systems.The clock unit of described remote termination take one of them relay such as the DCS relay as clock source, the clock of DCS relay is called master clock pattern or local clock pattern, the WCDMA relay obtains clock information from the DCS relay and carries out synchronously, is called from clock module or strange land clock module; When the DCS relay fault of clock source is provided, clock source disappears, the WCDMA relay that is operated in the strange land clock module can't obtain clock information and will change take next relay as clock source, if there is no next standby clock source, WCDMA will realize take oneself as clock source the working method of local clock in the relay.In the present embodiment, the signal stream of the relay system of multimode digital radio frequency remote by mode as shown in Figure 5.
Downstream signal direction: the DCS radio frequency unit coupling DCS base station of DCS relay or the downstream signal of RRU, and transferring the signal to the digital processing element, digital processing element is sent to this DCS downstream signal by photoelectric conversion module the photoelectric processing module of WCDNA relay.Simultaneously, the WLAN signal that the digital signal processing module desampler of DCS relay or wireless access points direction transmit and from the WCDMA downstream signal of WCDMA relay, and will convert light signal to by photoelectric conversion module after DCS downstream signal, WLAN signal and WCDMA downstream signal framing, then deliver to remote termination by optical fiber transmission.Simultaneously, the WCDMA relay is also the same with the DCS relay, the WCDMA downstream signal is sent to the DCS relay, receive the DCS downstream signal of DCS relay, and will convert light signal to by photoelectric conversion module after DCS downstream signal, WLAN signal and WCDMA downstream signal framing, then deliver to remote termination by optical fiber transmission.The photoelectric conversion module of remote termination is converted to light signal the digital processing element of making a gift to someone after the signal of telecommunication, after digital processing element is processed, the downstream signal of framing is isolated DCS downstream signal, WCDMA downstream signal and WLAN signal, DCS downstream signal, WCDMA downstream signal and WLAN signal are processed through radio frequency unit, power amplifier amplifies and processes through the multiband filter filtering, and DCS downstream signal and WCDMA downstream signal are sent to the area of coverage through antenna.The WLAN signal is sent to each switch or wireless access points covers.
the upward signal direction: the antenna reception of remote termination is to the DCS upward signal, the WLAN signal that the upward signal of WCDMA upward signal and other patterns and switch or wireless access points direction transmit is processed through the multiband filter filtering, power amplifier carries out digital processing and signal framing by digital processing element after amplifying, and by photoelectric conversion module, the signal of telecommunication is converted to light signal, described light signal arrives DCS relay and WCDMA relay by Optical Fiber Transmission, after the photoelectric conversion module of DCS relay is converted to the signal of telecommunication with light signal, the upward signal of framing is sent to digital processing element, separate the DCS upward signal after being processed by digital processing element, the WCDMA upward signal, the upward signal of various other patterns and WLAN signal, wherein the WCDMA upward signal will be sent to the WCDMA relay, the WLAN signal is sent to each switch or wireless access points covers, the upward signal of various other patterns will be sent in the relay of corresponding modes, if there is no the relay of corresponding modes, the upward signal of this pattern is with conductively-closed.The DCS relay reception is from the DCS upward signal of WCDMA relay simultaneously, the DCS relay sends it back DCS base station or RRU by the DCS radio frequency unit after making up with the isolated DCS upward signal of the digital processing element of itself with from the DCS upward signal that the WCDMA relay sends.simultaneously, the operation principle of WCDMA relay is also the same with the DCS relay, after the photoelectric conversion module of WCDMA relay is converted to the signal of telecommunication with light signal, the upward signal of framing is sent to digital processing element, separate the DCS upward signal after being processed by digital processing element, the WCDMA upward signal, the upward signal of various other patterns and WLAN signal and WLAN signal, wherein the DCS upward signal will be sent to the DCS relay, the WLAN signal is sent to each switch or wireless access points covers, the upward signal of various other patterns will be sent in the relay of corresponding modes, if there is no the relay of corresponding modes, the upward signal of this pattern is with conductively-closed.The WCDMA relay reception is from the WCDMA upward signal of DCS relay simultaneously, the WCDMA relay sends it back WCDMA base station or RRU by the WCDMAS radio frequency unit after making up with the isolated WCDMA upward signal of the digital processing element of itself with from the WCDMA upward signal that the DCS relay sends.
Transmit in the lump in company with signal of communication after by agreement regulation framing due to the monitor message between each relay and remote termination and clock information, so, just reference clock and monitor message are not elaborated at this, it can be used as the part of signal and go to understand.The agreement of system's reference can be CPRI (common public radio interface) agreement, but is not limited to the CPRI agreement.
The trunking method of a kind of multimode digital radio frequency remote of the present invention, as shown in Figure 6: comprise downstream signal trunking method and upward signal trunking method, described downstream signal trunking method comprises the steps:
The distribution of S11, downstream signal is mutual: the relay of different mode is distributed to the downstream signal of this pattern of its coupling the relay of other patterns after digital processing, and receives the downstream signal of other patterns of the relay of other patterns sending;
S12, downstream signal framing: the downstream signal that the relay of different mode will send through the relay of the downstream signal of this pattern of digital processing and other patterns carries out framing;
The transmission of S13, downstream signal: the downstream signal of the relay of each pattern after with framing transfers to remote termination;
S14, downstream signal separate: remote termination is isolated the downstream signal of framing the downstream signal of different mode:
S15, downstream signal cover: remote termination sends to the area of coverage after the downstream signal of isolated different mode is amplified.
Described upward signal trunking method comprises the steps
S21, upward signal framing: remote termination amplifies the upward signal of the different mode that receives, carry out framing after digital processing through radio frequency, obtains the framing signal;
S22, uplink signal transmissions: the upward signal of remote termination after with framing is sent to the relay that is connected with this remote termination;
S23, upward signal separate: the upward signal that different mode is isolated in digital processing is carried out with the frame signal that connected remote termination sends in the relay of different mode;
S24, upward signal distribution: the relay of different mode is distributed to the upward signal of other patterns in the relay of associative mode, as there is no a relay of associative mode, the signal conductively-closed of this pattern, and accept the upward signal of this pattern that other patterns relays sends over;
S25, upward signal report: the upward signal of this pattern that the upward signal of its isolated this pattern after digital processing and other patterns relays send is made up in the relay of different mode, and the upward signal after combination reports after radio frequency amplifies in the base station or RRU of this pattern relay associative mode.
Still take DCS network, WCDMA network and wlan network as example, trunking method to a kind of multimode digital radio frequency remote of the present invention describes: the distribution of S11, downstream signal is mutual: the DCS relay is coupled out downstream signal from DCS base station or RRU, is distributed to the WCDMA relay through after digital processing; The WCDMA relay is coupled out downstream signal from WCDMA base station or RRU, is distributed to the DCS relay through after digital processing;
S12, downstream signal framing: the DCS relay is by digital processing, with local DCS network downstream signal, from switch or AP directly access the WLAN signal and carry out framing from the WCDMA network downstream signal of WCDMA relay; The WCDMA relay is by digital processing, with local WCDMA network downstream signal, from switch or wireless aps (Access Point, access points) directly access the WLAN signal and carry out framing from the DCS network downstream signal of DCS relay;
The transmission of S13, downstream signal: the downstream signal after with framing transfers to remote termination by optical fiber by set agreement (for example CPRI agreement) for DCS relay and WCDMA relay;
S14, downstream signal separate: when remote termination only is connected with DCS relay or WCDMA relay, carry out standard after the framing downstream signal digital processing that remote termination is brought DCS relay or WCDMA relay and separate, the DCS network downstream signal after separation and WCDMA network downstream signal carry out radio frequency again and amplify after digital processing:
When remote termination connects DCS relay and WCDMA relay simultaneously, remote termination separates carrying out standard after DCS relay and framing downstream signal digital processing that the WCDMA relay is brought, and the DCS network downstream signal after separation and WCDMA network downstream signal carry out radio frequency again and amplify after digital processing;
S15, downstream signal cover: DCS network downstream signal and WCDMA network downstream signal are gone out by antenna transmission at last and are covered; The WLAN signal accesses to switch or wireless aps after standard is separated.
Described upward signal trunking method comprises the steps
S21, upward signal framing: remote termination with antenna reception to the upward signal of DCS network uplink signal, WCDMA network uplink signal and other patterns amplify, carry out framing with the WLAN signal of being brought by switch or AP by agreement (for example CPRI agreement) after digital processing through radio frequency, obtain the framing signal;
S22, uplink signal transmissions: the upward signal of remote termination after with framing is sent to the DCS relay that is connected with this remote termination and/or WCDMA relay;
S23, upward signal separate: the framing upward signal that the DCS relay receives from remote termination carries out isolating after digital processing upward signal and the WLAN signal of DCS network uplink signal, WCDMA network uplink signal, various other patterns; The framing upward signal that the WCDMA relay receives from remote termination carries out isolating after digital processing upward signal and the WLAN signal of DCS network uplink signal, WCDMA network uplink signal, various other patterns
S24, upward signal distribution: DCS directly delivers to switch or wireless aps with the WLAN signal in the relay, WCDMA network uplink signal is sent to the WCDMA relay, the upward signal of various other patterns sends to the relay of corresponding pattern, if there is no the relay of corresponding pattern, the upward signal conductively-closed of this pattern, and accept the DCS network uplink signal that send the WCDMA relay; Switch or wireless aps are directly delivered to the WLAN signal in the WCDMA relay, DCS network uplink signal is sent to the DCS relay, the upward signal of various other patterns sends to the relay of corresponding pattern, if there is no the relay of corresponding pattern, the upward signal conductively-closed of this pattern, and accept the WCDMA network uplink signal that the DCS relay sends over;
S25, upward signal report: the DCS relay will be after digital processing the DCS network uplink signal that sends of isolated DCS network uplink signal and WCDMA relay make up, the upward signal after combination reports in the base station or RRU of DCS network after radio frequency amplifies; The WCDMA relay will be after digital processing the WCDMA network uplink signal that sends of isolated WCDMA network uplink signal and DCS relay make up, the upward signal after combination reports in the base station or RRU of WCDMA network after radio frequency amplifies.
Above-described embodiment is the better execution mode of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, within being included in protection scope of the present invention.
Claims (10)
1. the relay system of a multimode digital radio frequency remote, it is characterized in that, comprise first mode relay, the second pattern relay and remote termination, described first mode relay connects base station or the RF-coupled access unit of this pattern, described the second pattern relay connects base station or the RF-coupled access unit of this pattern, described first mode relay is connected with the second pattern relay, described first mode relay be connected the pattern relay and connect remote termination.
2. the relay system of multimode digital radio frequency remote according to claim 1 is characterized in that: described first mode relay comprises first mode radio frequency unit, digital processing element and monitoring unit; The first mode radio frequency unit is connected with base station or the RRU of this pattern, be used for the downstream signal of coupling base station or RRU and to the base station or RRU transmit the upward signal of corresponding modes; The output of first mode radio frequency unit connects digital processing element, and the output of digital processing element connects the second pattern relaying terminal by photoelectric conversion module, perhaps connects respectively the second pattern relay and remote termination; Monitoring unit is used for first mode relaying terminal is monitored.
3. the relay system of multimode digital radio frequency remote according to claim 1 is characterized in that: described the second pattern relay comprises the second pattern radio frequency radio frequency unit, digital processing element and monitoring unit; The second pattern radio frequency unit is connected with base station or the RRU of this pattern, be used for the downstream signal of coupling base station or RRU and to the base station or RRU transmit the upward signal of corresponding modes; The output of the second pattern radio frequency unit connects digital processing element, and the output of digital processing element perhaps connects respectively the second pattern relay and remote termination by photoelectric conversion module connection first mode relay; Monitoring unit is used for the second pattern relaying terminal is monitored.
4. the relay system of multimode digital radio frequency remote according to claim 1, it is characterized in that: described remote termination comprises digital processing element, radio frequency unit, power amplification unit, the multiband filter that connects successively, also comprises monitoring unit, clock unit; Described monitoring unit is connected with digital processing element, radio frequency unit, power amplification unit, multiband filter respectively, described digital processing element by photoelectric conversion module and first mode relay be connected the pattern relay and be connected, described multiband filter is connected with user terminal by antenna.
5. the relay system of multimode digital radio frequency remote according to claim 1 is characterized in that: described first mode relay is connected with remote termination after pattern relay series connection with being connected.
6. the relay system of multimode digital radio frequency remote according to claim 1 is characterized in that: described first mode relay be connected the pattern relay and connect respectively remote termination.
7. the relay system of multimode digital radio frequency remote according to claim 6 is characterized in that: the remote termination that described first mode relay or the second pattern relay connect is 1,2,3,4,5 or 6.
According to claim 2 to 7 arbitrary described multimode digital radio frequency remote the relay system, it is characterized in that: described digital processing element is the multi-modulation scheme digital processing element.
9. the relay system of multimode digital radio frequency remote according to claim 5, it is characterized in that: described first mode, the second pattern comprise the network of one or two standards in GSM, CDMA, DCS, WCDMA, CDMA2000, TD-SCDMA, LTE, Wimax etc.
10. the relay method of a multimode digital radio frequency remote, its special type is: comprise downstream signal trunking method and upward signal trunking method, described downstream signal trunking method comprises the steps:
The distribution of S11, downstream signal is mutual: the relay of different mode is distributed to the downstream signal of this pattern of its coupling the relay of other patterns after digital processing, and receives the downstream signal of other patterns of the relay of other patterns sending;
S12, downstream signal framing: the downstream signal that the relay of different mode will send through the relay of the downstream signal of this pattern of digital processing and other patterns carries out framing;
The transmission of S13, downstream signal: the downstream signal of the relay of each pattern after with framing transfers to remote termination;
S14, downstream signal separate: remote termination is isolated the downstream signal of framing the downstream signal of different mode:
S15, downstream signal cover: remote termination sends to the area of coverage after the downstream signal of isolated different mode is amplified;
Described upward signal trunking method comprises the steps
S21, upward signal framing: remote termination amplifies the upward signal of the different mode that receives, carry out framing after digital processing through radio frequency, obtains the framing signal;
S22, uplink signal transmissions: the upward signal of remote termination after with framing is sent to the relay that is connected with this remote termination;
S23, upward signal separate: the upward signal that different mode is isolated in digital processing is carried out with the frame signal that connected remote termination sends in the relay of different mode;
S24, upward signal distribution: the relay of different mode is distributed to the upward signal of other patterns in the relay of associative mode, as there is no a relay of corresponding pattern, shield the upward signal of this pattern, and accept the upward signal of this pattern that other patterns relays sends over;
S25, upward signal report: the upward signal of this pattern that the upward signal of its isolated this pattern after digital processing and other patterns relays send is made up in the relay of different mode, and the upward signal after combination reports after radio frequency amplifies in the base station or RRU of this pattern relay associative mode.
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