CN103139786B - The relay system of multimode digital radio frequency remote and trunking method - Google Patents
The relay system of multimode digital radio frequency remote and trunking method Download PDFInfo
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Abstract
The relay system of a kind 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 the base station of this pattern or RF-coupled access unit, described second pattern relay connects the base station of this pattern or RF-coupled access unit, described first mode relay is connected with the second pattern relay, and described first mode relay is connected remote termination with the second pattern relay.By the relay of different mode is separately designed, the base station of different mode signal or RRU can be solved not when same geographical position, the signal of different mode is incorporated into simultaneously the technical problem in signal blind zone or weak district, improve the flexibility of constructing communication network, and can effectively prevention apparatus fault on the impact of communication system.Present invention also offers a kind of trunking method of multimode digital radio frequency remote.
Description
Technical field
The present invention relates to mobile communication signal Covering domain, particularly relate to relay system and the trunking method of multimode digital radio frequency remote.
Background technology
In mobile communications network, digital RF far-drawing system as base station in overlay network extension and supplement, can signal quality be improved, solve weak signal area and blind area Special Handle of Drop Question, improve the experience of user.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, the situation that 2G internet and 3G is network coexisted certainly will be there is.At present, the mobile operator of China, as there are respective 2G internet and 3G network in China Mobile and CHINAUNICOM.Therefore, possess 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 cost, the engineering also building together to many nets brings very large facility, has market prospects widely simultaneously.
Had at present the technical scheme of multimode digital radio frequency remote, the Chinese invention patent application as publication number to be CN1866890A and publication number be CN1863367A individually discloses wired and wireless multimode network communication system.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 to again in remote equipment in first mode equipment by the signal gathering of the proximal device by first mode equipment and the second pattern device.These two technical schemes can solve the problem of the optimum site of signal behavior of different mode, as being arranged on the site of its optimum in 2G base station and NodeB.But, due to when carrying out signal optimizing to the weak district of signal or blind area, often need the different mode signal being in different site to introduce simultaneously, and the base station of these different mode signals (as 2G and 3G) or RRU even differ several kilometers far away sometimes, therefore above-mentioned two technical schemes can't resolve the problem that the signal that carries out various modes to the weak district of signal or blind area is optimized.Meanwhile, from networking topology, the technical scheme that these two patents disclose is star net forming mode, is unfavorable for carrying out the multiple networking mode 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 by converging the signal of multichannel different systems or distributing the object to reaching transmission different systems signal on a unit.But because it only has a near-end machine, a place can only be arranged on, therefore can not solve the problem simultaneously introduced by the signal of the different mode of different site; On the other hand, this patent application is the direct discharging station of simulation and is not the digital system described in us, and their signal can only be that radiofrequency signal closes road instead of data packing.
Visible, in existing multimode far-drawing system, owing to not considering that the signal of different mode is generally in the feature in different geographical position, the ethod of remittance of its signal can not solve the problem introduced by the signal of the different mode on diverse geographic location simultaneously simultaneously and carry out covering, meanwhile, the flexible networking of system is also unfavorable for.
Summary of the invention
The embodiment provides the relay system of multimode digital radio frequency remote, the multi-modulation scheme signal being in diverse geographic location can be realized upwards to transmit by protocol encapsulation one by one, mutually broadcast alternately and downwards, realize the flexible networking of far-drawing system.
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 first mode, described second pattern relay connects base station or the RRU of the second 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: this multi-mode base station of relay direct-coupling of each pattern or the downstream signal of RRU, and transfer the signal to the in the relay of other patterns, meanwhile, be sent in coupled remote termination after the signal that the relaying terminal of the downstream signal that is also coupled of this relay and other patterns transmits carries out framing.The framing Signal separator that remote termination is received goes out the signal of different mode, and is sent to the area of coverage after amplifying.
Upward signal direction: after remote termination receives the signal of different mode, framing carried out to described signal and be transferred to 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, in the base station sending corresponding modes to after the signal of this pattern that the relay of the signal and other patterns that belong to this pattern that the relay of each pattern is isolated out sends combines or RRU.
As optimal way of the present invention, the relay of described different mode can connect a remote termination simultaneously, also can be connected with multiple remote termination respectively, and owing to being interconnected between each relay, then each remote termination is all connected with each relay.Each relay can connect at most six remote terminations.
Embodiments of the invention additionally provide a kind of trunking method of multimode digital radio frequency remote: comprise downstream signal trunking method and upward signal trunking method, and described downstream signal trunking method comprises the steps:
The distribution of S11, downstream signal is mutual: the downstream signal of this pattern that the relay of different mode is coupled is distributed to the relay of other patterns after digital processing, and the downstream signal of other patterns that the relay receiving other patterns is sent;
S12, downstream signal framing: the downstream signal that the downstream signal of this pattern through digital processing and the relay of other patterns send is carried out framing by the relay of different mode;
S13, downstream signal transmit: the downstream signal after framing is transferred to remote termination by the relay of each pattern;
S14, downstream signal are separated: the downstream signal of framing is isolated the downstream signal of different mode by remote termination:
S15, downstream signal cover: remote termination is sent to the area of coverage after being amplified by the downstream signal of isolated different mode.
Described upward signal trunking method comprises the steps
S21, upward signal framing: the upward signal of the different mode received is carried out framing by remote termination after radio frequency amplification, digital processing, obtains framing signal;
S22, uplink signal transmissions: the upward signal after framing is sent to the relay be connected with this remote termination by remote termination;
S23, upward signal are separated: the frame signal that connected remote termination sends over by the relay of different mode carries out the upward signal that different mode is isolated in digital processing;
S24, upward signal are distributed: the upward signal of other patterns is distributed in the relay of associative mode by the relay of different mode, and accepts the upward signal of this pattern that other pattern relays send over;
S25, upward signal report: the upward signal of this pattern that the upward signal of its this pattern isolated after digital processing and other pattern relays send combines by the relay of different mode, in the base station that the upward signal after combination reports this pattern relay associative mode after radio frequency amplifies or RRU.Compared with prior art, the present invention has the following advantages and beneficial effect:
1, by the relay of different mode is provided separately, can solve the base station of different mode signal or RRU far apart time introduce the signal of required mode to the problem needing the area covered simultaneously, make the application of this multimode digital radio frequency remote more extensive.
2, owing to have employed the relay of multiple different mode, the relay of each different mode is connected to each other simultaneously, so be also only the fault of present mode when path fault appears in the relay of one of them pattern, and do not affect the relay of other pattern and remote termination forms communication link, when being only left a relay, remote termination is equivalent to the remote termination of common single mode, does not still affect the communication link of the pattern corresponding to this relay.The work that can be connected with the remote termination of multimode of the relay of native system also can be connected with the remote termination of single mode work.Therefore, the impact on system when the present invention can prevent the relay of near-end from breaking down effectively.
3, because the relay of different mode can connect same remote termination jointly, also multiple remote termination can be connected respectively, the networking modes such as annular, chrysanthemum chain, star can be realized, networking mode is flexible, each relay can connect maximum six remote terminations simultaneously, effectively can expand the scope of the network coverage.
Accompanying drawing explanation
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 relay system configuration schematic diagram of multimode digital radio frequency remote with the WCDMA network of the DCS network of 2G pattern, 3G pattern and WLAN composition;
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, with embodiment, the present invention is described in further detail.But embodiments of the present invention are not limited thereto.
As shown in Figure 1, the relay system of multimode digital radio frequency remote of the present invention, comprise pattern relay 3, first mode relay 2, second and remote termination 4, described first mode relay 2 connects base station or the RF-coupled access unit 11 of this pattern, described second pattern relay 3 connects base station or the RF-coupled access unit 12 of this pattern, described first mode relay 2 is connected with the second pattern relay 3, rear common connection remote termination 4 can be combined in described first mode relay 2 and the second pattern relay 3, also can connect separately remote termination 4 separately.
As shown in Figure 2 A, first mode relay 2 comprises first mode radio frequency unit 21, digital processing element 22 and monitoring unit 23, base station or the RRU11 of first mode radio frequency unit 21 and this pattern are connected, for be coupled base station or RRU11 downstream signal and transmit the upward signal of corresponding modes to base station or RRU11.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, or connects the second pattern relay 3 and remote termination 4 respectively.Monitoring unit 23 is for monitoring first mode relaying terminal 2.
As shown in Figure 2 B, second pattern relay 3 comprises the second mode RF radio frequency unit 31, digital processing element 32 and monitoring unit 33, base station or the RRU12 of the second mode RF unit 31 and this pattern are connected, for be coupled base station or RRU12 downstream signal and transmit the upward signal of corresponding modes to base station or RRU12.The output of the second mode RF 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, or connects first mode relay 2 and remote termination 4 respectively.Monitoring unit 33 is for monitoring the second pattern relaying terminal 3.
As shown in Figure 3, remote termination comprises the digital processing element 41, radio frequency unit 42, power amplification unit 43, the multiband filter 44 that connect 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 is connected with first mode relay 2 and the second pattern relay 3 by photoelectric conversion module 47, and described multiband filter 44 is connected with user terminal by antenna 48.
Described digital processing element 22,32,41 is 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 three-mode relay, three-mode relay has the structure identical with first mode relay, and be connected with the second pattern relay with first mode relay respectively, be connected with remote termination simultaneously.Theoretically, the relay system of multimode digital radio frequency remote of the present invention can also comprise four-mode relay, and the more multi-mode relay such as the 5th pattern relay, to meet the object of different mode networks common networking and optimization.But after increasing more multimodal relay, the complexity of system also increases accordingly, for reaching optimum networking effect, the relay of described different mode is limited to be no more than four.
The relay of described different mode can be combined and is connected with identical remote termination afterwards, also can be connected with different remote terminations respectively.
Described first mode, second pattern, three-mode, four-mode etc. comprises GSM (the Global System forMobile communication of 2G, global system for mobile communications network), CDMA (Code Division Multiple Access, code division multiple access) network, DCS (Distributed Control System, dcs) WCDMA (the Wideband Code Division Multiple Access of internet and 3G, Wideband Code Division Multiple Access (WCDMA)) network, CDMA2000 (Code DivisionMultiple Access 2000, CDMA 2000) network and TD-SCDMA (Time Division-Synchronous CodeDivision 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 4G network medium.
Embodiment 1
Be example with DCS network and WCDMA network and WLAN (Wireless Local Area Networks, WLAN) below, 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.DCS radio frequency unit connects DCS base station or RRU, for being coupled DCS downstream signal and transmit DCS upward signal to DCS base station or RRU from DCS base station or RRU.The output of DCS radio frequency unit connects digital processing element, and the output of digital processing element connects WCDMA relay and remote termination respectively by photoelectric conversion module.Monitoring unit normally works for monitoring DCS relaying terminal.
Described WCDMA relay comprises WCDMA radio frequency unit, digital processing element and monitoring unit.WCDMA radio frequency unit connects WCDMA base station or RRU, for being coupled WCDMA downstream signal and transmit WCDMA upward signal to WCDMA base station or RRU from WCDMA base station or RRU.The output of WCDMA radio frequency unit connects digital processing element, and the output of digital processing element is by photoelectric conversion module DCS relay and remote termination respectively.Monitoring unit normally works for monitoring DCS relaying terminal.
Remote termination comprises the digital processing element, radio frequency unit, power amplification unit, the multiband filter that connect 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 with DCS relay or WCDMA relay by photoelectric conversion module, and described multiband filter is connected with user terminal by antenna.
Between two relays by photoelectric conversion module OP by Fiber connection, with realize the communication information, reference clock, monitor message mutual.WLAN transmission be then continue in dcs end, provide a transparent baseband transmission link between WCDMA relay and remote termination, to make full use of existing fiber resource.
DCS relay and WCDMA relay all can the remote terminations of independent traction multimode, or the remote termination of traction multimode after combination.The quantity of traction can realize one dragging six (i.e. a relay traction six remote terminations, here can traction 12), and can support multiple networking mode, as star, external, annular and mixed networking etc.Wherein annular networking mode is realized by the remote termination of different relay institutes traction, because relay and remote termination can also attach WLAN function, therefore also can support the baseband transmission of WLAN simultaneously.The signal that the WLAN signal transmitted from switch or wireless access points direction, local signal and other relay are transmitted, by reserved optical interface (i.e. photoelectric conversion module OP), is sent to remote termination by described baseband transmission in the lump.Described relay to be connected the information interaction realized between different relay by optical fiber; The information transmitted in optical fiber comprises the signal of communication of different systems, system monitoring information and each relay clock signal.
The clock unit of described remote termination with one of them relay if DCS relay is for clock source, then the clock of DCS relay is called master clock pattern or local clock pattern, WCDMA relay obtains clock information from DCS relay and carries out synchronous, is called from clock module or strange land clock module; During the DCS relay fault of Zhong Yuan when present, clock source disappears, the WCDMA relay being operated in strange land clock module cannot obtain clock information and will change with next relay as clock source, if there is no next standby clock source, WCDMA relay by with oneself for clock source realizes the working method of local clock.In the present embodiment, the signal stream routing mode of the relay system of multimode digital radio frequency remote 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, this DCS downstream signal is sent to the photoelectric processing module of WCDNA relay by digital processing element by photoelectric conversion module.Simultaneously, the WLAN signal that the digital signal processing module desampler of DCS relay or wireless access points direction are transmitted and the WCDMA downstream signal from WCDMA relay, and convert light signal by after DCS downstream signal, WLAN signal and WCDMA downstream signal framing to by photoelectric conversion module, then be sent to remote termination by optical fiber.Simultaneously, Ye HeDCS relay, WCDMA relay is the same, WCDMA downstream signal is sent to DCS relay, receive the DCS downstream signal of DCS relay, and convert light signal by after DCS downstream signal, WLAN signal and WCDMA downstream signal framing to by photoelectric conversion module, then be sent to remote termination by optical fiber.To make a gift to someone after light signal is converted to the signal of telecommunication by the photoelectric conversion module of remote termination digital processing element, after digital processing element process, the downstream signal of framing isolates DCS downstream signal, WCDMA downstream signal and WLAN signal, DCS downstream signal, WCDMA downstream signal and WLAN signal are through radio frequency unit process, power amplifier amplifies and through the process of multiband filter filtering, DCS downstream signal and WCDMA downstream signal are sent to the area of coverage through antenna.WLAN signal is sent to each switch or wireless access points covers.
Upward signal direction: the antenna of remote termination receives DCS upward signal, the WLAN signal that the upward signal of WCDMA upward signal and other patterns and switch or wireless access points direction are transmitted is through the process of multiband filter filtering, power amplifier carries out digital processing and signal framing by digital processing element after amplifying, and convert electrical signals to light signal by photoelectric conversion module, described light signal by Optical Fiber Transmission to DCS relay and WCDMA relay, after light signal is converted to the signal of telecommunication by the photoelectric conversion module of DCS relay, the upward signal of framing is sent to digital processing element, DCS upward signal is separated by after digital processing element process, WCDMA upward signal, the upward signal of other patterns various and WLAN signal, wherein WCDMA upward signal will be sent to WCDMA relay, WLAN signal is sent to each switch or wireless access points covers, the upward signal of other patterns various will be sent in the relay of corresponding modes, if there is no the relay of corresponding modes, then the upward signal of this pattern is by conductively-closed.DCS relay reception is from the DCS upward signal of WCDMA relay simultaneously, DCS relay, by isolated for the digital processing element of itself DCS upward signal with after combining from the DCS upward signal that WCDMA relay sends, sends it back DCS base station or RRU by DCS radio frequency unit.Simultaneously, the operation principle of WCDMA relay is also the same with DCS relay, after light signal is converted to the signal of telecommunication by the photoelectric conversion module of WCDMA relay, the upward signal of framing is sent to digital processing element, DCS upward signal is separated by after digital processing element process, WCDMA upward signal, the upward signal of other patterns various and WLAN signal and WLAN signal, wherein DCS upward signal will be sent to DCS relay, WLAN signal is sent to each switch or wireless access points covers, the upward signal of other patterns various will be sent in the relay of corresponding modes, if there is no the relay of corresponding modes, then the upward signal of this pattern is by conductively-closed.WCDMA relay reception is from the WCDMA upward signal of DCS relay simultaneously, WCDMA relay, by isolated for the digital processing element of itself WCDMA upward signal with after combining from the WCDMA upward signal that DCS relay sends, sends it back WCDMA base station or RRU by WCDMAS radio frequency unit.
Because the monitor message between each relay and remote termination and clock information transmit in company with signal of communication in the lump by after agreement regulation framing, so just do not elaborate to reference clock and monitor message at this, the part can being used as signal goes to understand.The agreement of system reference can be CPRI (common public radio interface) agreement, but is not limited to 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 downstream signal of this pattern that the relay of different mode is coupled is distributed to the relay of other patterns after digital processing, and the downstream signal of other patterns that the relay receiving other patterns is sent;
S12, downstream signal framing: the downstream signal that the downstream signal of this pattern through digital processing and the relay of other patterns send is carried out framing by the relay of different mode;
S13, downstream signal transmit: the downstream signal after framing is transferred to remote termination by the relay of each pattern;
S14, downstream signal are separated: the downstream signal of framing is isolated the downstream signal of different mode by remote termination:
S15, downstream signal cover: remote termination is sent to the area of coverage after being amplified by the downstream signal of isolated different mode.
Described upward signal trunking method comprises the steps
S21, upward signal framing: the upward signal of the different mode received is carried out framing by remote termination after radio frequency amplification, digital processing, obtains framing signal;
S22, uplink signal transmissions: the upward signal after framing is sent to the relay be connected with this remote termination by remote termination;
S23, upward signal are separated: the frame signal that connected remote termination sends over by the relay of different mode carries out the upward signal that different mode is isolated in digital processing;
S24, upward signal are distributed: the upward signal of other patterns is distributed in the relay of associative mode by the relay of different mode, as there is no the relay of associative mode, the then signal conductively-closed of this pattern, and accept the upward signal of this pattern that other pattern relays send over;
S25, upward signal report: the upward signal of this pattern that the upward signal of its this pattern isolated after digital processing and other pattern relays send combines by the relay of different mode, in the base station that the upward signal after combination reports this pattern relay associative mode after radio frequency amplifies or RRU.
Embodiment 2
Still for DCS network, WCDMA network and wlan network, the trunking method of a kind of multimode digital radio frequency remote of the present invention is described: the distribution of S11, downstream signal is mutual: DCS relay is coupled out downstream signal from DCS base station or RRU, carries out being distributed to WCDMA relay after digital processing; WCDMA relay is coupled out downstream signal from WCDMA base station or RRU, carries out being distributed to DCS relay after digital processing;
S12, downstream signal framing: DCS relay by digital processing, by local DCS network downstream signal, the WLAN signal directly accessed from switch or AP and carry out framing from the WCDMA network downstream signal of WCDMA relay; WCDMA passes through digital processing in relay, by local WCDMA network downstream signal, from switch or wireless aps (Access Point, access points) directly access WLAN signal and carry out framing from the DCS network downstream signal of DCS relay;
S13, downstream signal transmit: the downstream signal after framing is transferred to remote termination by given protocol (such as CPRI agreement) by optical fiber by DCS relay and WCDMA relay;
S14, downstream signal are separated: when remote termination is only connected with DCS relay or WCDMA relay, carry out standard separation after the framing downstream signal digital processing that DCS relay or WCDMA relay are brought by remote termination, the DCS network downstream signal after separation and WCDMA network downstream signal carry out radio frequency amplification again after digital processing:
When remote termination connects DCS relay and WCDMA relay simultaneously, carry out standard after the framing downstream signal digital processing that DCS relay and WCDMA relay are brought by remote termination to be separated, the DCS network downstream signal after separation and WCDMA network downstream signal carry out radio frequency amplification again after digital processing;
S15, downstream signal cover: DCS network downstream signal and WCDMA network downstream signal are finally gone out by antenna transmission and covered; WLAN signal accesses to switch or wireless aps after standard is separated.
Described upward signal trunking method comprises the steps
S21, upward signal framing: the upward signal of DCS network uplink signal, WCDMA network uplink signal and other patterns that antenna receives by remote termination carries out framing with the WLAN signal brought by switch or AP by agreement (such as CPRI agreement) after radio frequency amplification, digital processing, obtains framing signal;
S22, uplink signal transmissions: the upward signal after framing is sent to the DCS relay and/or WCDMA relay that are connected with this remote termination by remote termination;
S23, upward signal are separated: isolate DCS network uplink signal, WCDMA network uplink signal, the upward signal of other patterns various and WLAN signal after the DCS relay framing upward signal that distally machine receives carries out digital processing; DCS network uplink signal, WCDMA network uplink signal, the upward signal of other patterns various and WLAN signal is isolated after the WCDMA relay framing upward signal that distally machine receives carries out digital processing
S24, upward signal are distributed: WLAN signal is directly delivered to switch or wireless aps by DCS relay, WCDMA network uplink signal is sent to WCDMA relay, the upward signal of other patterns various is sent 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 sends WCDMA relay; WLAN signal is directly delivered to switch or wireless aps by WCDMA relay, DCS network uplink signal is sent to DCS relay, the upward signal of other patterns various is sent to the relay of corresponding pattern, if there is no the relay of corresponding pattern, the upward signal conductively-closed of this pattern, and the WCDMA network uplink signal accepting that DCS relay sends over;
S25, upward signal report: the DCS network uplink signal that DCS network uplink signal isolated after digital processing and WCDMA relay send combines by DCS relay, the upward signal after combination through radio frequency amplify after report DCS network base station or RRU in; The WCDMA network uplink signal that WCDMA network uplink signal isolated after digital processing and DCS relay send combines by WCDMA relay, the upward signal after combination through radio frequency amplify after report WCDMA network base station or RRU in.
Above-described embodiment is the present invention's preferably execution mode; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (9)
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 the base station of first mode or RF-coupled access unit, described second pattern relay connects the base station of the second pattern or RF-coupled access unit, described first mode relay is connected with the second pattern relay, described first mode relay is connected same remote termination jointly with the second pattern relay, or connects multiple remote termination respectively; Described first mode comprises the network of a standard in GSM, CDMA, DCS, WCDMA, CDMA2000, TD-SCDMA, LTE, Wimax, and described second pattern also comprises the network of a standard in GSM, CDMA, DCS, WCDMA, CDMA2000, TD-SCDMA, LTE, Wimax.
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; Base station or the RRU of first mode radio frequency unit and this pattern are connected, for be coupled base station or RRU downstream signal and transmit the upward signal of corresponding modes to base station or RRU; The output of first mode radio frequency unit connects digital processing element, and the output of digital processing element connects the second pattern relay by photoelectric conversion module, or connects the second pattern relay and remote termination respectively; Monitoring unit is used for monitoring first mode relaying terminal.
3. the relay system of multimode digital radio frequency remote according to claim 1, is characterized in that: described second pattern relay comprises the second mode RF unit, digital processing element and monitoring unit; Base station or the RRU of the second mode RF unit and this pattern are connected, for be coupled base station or RRU downstream signal and transmit the upward signal of corresponding modes to base station or RRU; The output of the second mode RF unit connects digital processing element, and the output of digital processing element connects first mode relay by photoelectric conversion module, or connects first mode relay and remote termination respectively; Monitoring unit is used for monitoring the second pattern relaying terminal.
4. the relay system of multimode digital radio frequency remote according to claim 1, it is characterized in that: described remote termination comprises the digital processing element, radio frequency unit, power amplification unit, the multiband filter that connect 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 with first mode relay and the second pattern relay by photoelectric conversion module, and 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 with after the second pattern relay series connection.
6. the relay system of multimode digital radio frequency remote according to claim 1, is characterized in that: described first mode relay is connected remote termination respectively with the second pattern relay.
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.
8., according to the relay system of the arbitrary described multimode digital radio frequency remote of claim 2 to 7, it is characterized in that: described digital processing element is multi-modulation scheme digital processing element.
9. a relay method for multimode digital radio frequency remote described in any one of claim 1 to 7, is characterized in that: comprise downstream signal trunking method and upward signal trunking method, and described downstream signal trunking method comprises the steps:
The distribution of S11, downstream signal is mutual: the downstream signal of this pattern that the relay of different mode is coupled is distributed to the relay of other patterns after digital processing, and the downstream signal of other patterns that the relay receiving other patterns is sent;
S12, downstream signal framing: the downstream signal that the downstream signal of this pattern through digital processing and the relay of other patterns send is carried out framing by the relay of different mode;
S13, downstream signal transmit: the downstream signal after framing is transferred to remote termination by the relay of each pattern;
S14, downstream signal are separated: the downstream signal of framing is isolated the downstream signal of different mode by remote termination:
S15, downstream signal cover: remote termination is sent to the area of coverage after being amplified by the downstream signal of isolated different mode;
Described upward signal trunking method comprises the steps
S21, upward signal framing: the upward signal of the different mode received is carried out framing by remote termination after radio frequency amplification, digital processing, obtains framing signal;
S22, uplink signal transmissions: the upward signal after framing is sent to the relay be connected with this remote termination by remote termination;
S23, upward signal are separated: the frame signal that connected remote termination sends over by the relay of different mode carries out the upward signal that different mode is isolated in digital processing;
S24, upward signal are distributed: the upward signal of other patterns is distributed in the relay of associative mode by the relay of different mode, as there is no the relay of corresponding pattern, then shield the upward signal of this pattern, and accept the upward signal of this pattern that other pattern relays send over;
S25, upward signal report: the upward signal of this pattern that the upward signal of its this pattern isolated after digital processing and other pattern relays send combines by the relay of different mode, in the base station that the upward signal after combination reports this pattern relay associative mode after radio frequency amplifies or RRU.
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| JP6241691B2 (en) | 2013-08-13 | 2017-12-06 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Wireless access method, apparatus and system |
| CN107360142B (en) * | 2017-06-26 | 2019-10-08 | 京信通信系统（中国）有限公司 | Multi-standard mixed networking Transmission system and transmission method based on CPRI framework |
| CN108023634A (en) * | 2017-12-20 | 2018-05-11 | 成都芯通软件有限公司 | A kind of chain type cascades TD-LTE frequency-shift repeater station systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0954940B1 (en) * | 1997-01-29 | 2006-11-15 | Telefonaktiebolaget LM Ericsson (publ) | Point to multipoint radio access system |
| CN101471877A (en) * | 2007-12-27 | 2009-07-01 | 华为技术有限公司 | Communication method, system and device between heterogeneous networks |
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| CN201717862U (en) * | 2010-05-25 | 2011-01-19 | 京信通信系统（中国）有限公司 | Multimode band diversity microwave remote system |
| CN202043295U (en) * | 2011-01-04 | 2011-11-16 | 京信通信系统（中国）有限公司 | Multimode digital radio-frequency remote system (DRRS) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0954940B1 (en) * | 1997-01-29 | 2006-11-15 | Telefonaktiebolaget LM Ericsson (publ) | Point to multipoint radio access system |
| CN101471877A (en) * | 2007-12-27 | 2009-07-01 | 华为技术有限公司 | Communication method, system and device between heterogeneous networks |
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Address after: 510663 Shenzhou Road 10, Science City, Guangdong, Guangzhou Patentee after: Jingxin Network System Co.,Ltd. Address before: 510663 Shenzhou Road 10, Science City, Guangdong, Guangzhou Patentee before: COMBA TELECOM SYSTEMS (CHINA) Ltd. |
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