CN1394016A - Cascade communication method for repeaters of WCDMA wireless communication system and its equipment - Google Patents
Cascade communication method for repeaters of WCDMA wireless communication system and its equipment Download PDFInfo
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- CN1394016A CN1394016A CN01122672A CN01122672A CN1394016A CN 1394016 A CN1394016 A CN 1394016A CN 01122672 A CN01122672 A CN 01122672A CN 01122672 A CN01122672 A CN 01122672A CN 1394016 A CN1394016 A CN 1394016A
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- 238000004891 communication Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000012423 maintenance Methods 0.000 claims abstract description 13
- 230000003321 amplification Effects 0.000 claims description 18
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 18
- 238000012545 processing Methods 0.000 claims description 18
- 238000001914 filtration Methods 0.000 claims description 17
- 238000002156 mixing Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 8
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 3
- 230000009365 direct transmission Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 1
- 238000012805 post-processing Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000010295 mobile communication Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 1
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- 239000006185 dispersion Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invented cascade connection communication network is applicable to the repeated in the third generation wireless communication WCDMA. The covering area of WCDMA communication system can be extended to maximum through the multi-stage repeaters transmitting the radio frequency signal each other in cascade connection mode. Based on the need of operation and maintenance, the repeater can be in the idle condition at any time. That is to say the repeater does not process the relevant radio frequency signal, thus, the repeaters can be configured smarty. Moreover, the invention provides the sleeping mode of the repeater. When the upward signals from user's devices do not exist, the upward link process of the repeater can enter to the sleeping mode in order to reduce the power consumption.
Description
The present invention relates to a kind of transponder that is used for radio communication, relate in particular to a kind of cascade communication method and device thereof that is applicable to the transponder of third generation radio communication WCDMA (wideband code division communication system).
As everyone knows, the research work of 3-G (Generation Three mobile communication system) is just worldwide carried out, WCDMA can provide bigger power system capacity, more excellent speech quality, higher spectrum efficiency, faster data speed, stronger anti-fading ability, better anti-multipath, adapt to the high-speed mobile communications environment.In some specific environment, as building, tunnel, subway, highway etc., adopt transponder can increase coverage, perhaps in sector-edge and highly dense zone, use transponder can reduce the transmitting power of user equipment (UE) and base station, improve carrier interference ratio C/I, thereby improve power system capacity.
Adopting the transponder of conventional art is the forwarding of one-level radiofrequency signal, such transponder generally includes the reception and the amplification of two links, article one, link is the downlink communication of from the base station to the subscriber equipment (UE), and another is the uplink communication from the subscriber equipment to the base station.Every link generally comprises main modular such as reception/transmitting antenna, frequency mixer, filter, power amplifier and constitutes.Conventional repeaters as shown in Figure 1.From up link, antenna 108 receives the up link radiofrequency signal that subscriber equipment 114 sends by antenna 115.Duplexer 107 receives from the up radiofrequency signal of antenna 108 and sends it to frequency mixer 111.111 pairs of signals of frequency mixer carry out frequency to be selected, and obtains the upward signal in this carrier frequency, and this signal is sent to filter 110.Filter 110 carries out sending to power amplifier 109 after the Filtering Processing to the received signal.The signal that 109 pairs of filters 110 of power amplifier send to it carries out the power amplification processing, and the upward signal after will amplifying sends to duplexer 103, duplexer 103 sends to base station 113 with the airborne spread of this signal by antenna 102, base station 113 is by the upward signal that antenna 112 receives from transponder 101, carries out after the demodulation despreading Base-Band Processing etc. then.From down link, antenna 102 receives the down link radiofrequency signal that base station 113 sends by antenna 112.Duplexer 103 receives from the up radiofrequency signal of antenna 102 and sends it to frequency mixer 104.104 pairs of signals of frequency mixer carry out frequency to be selected, and obtains the downstream signal in this carrier frequency, and this signal is sent to filter 105.Filter 105 carries out sending to power amplifier 106 after the Filtering Processing to the received signal.The signal that 106 pairs of filters 105 of power amplifier send to it carries out the power amplification processing, and the upward signal after will amplifying sends to duplexer 107, duplexer 107 sends to subscriber equipment 114 with the airborne spread of this signal by antenna 108, subscriber equipment 114 is by the downstream signal that antenna 115 receives from transponder 101, carries out after the demodulation despreading Base-Band Processing etc. then.
Because the transponder of conventional art is the forwarding of one-level radiofrequency signal, this transponder directly links to each other with the base station, the upward signal of subscriber equipment will send to the base station, can only be through the forwarding of a transponder, can not be too far away with regard to the distance of inevitable requirement subscriber equipment from the base station, otherwise subscriber signal just can't be received in the base station, so the actual coverage of each base station is just very limited, and also underaction of the configuration of system.Especially in zone meagrely-populated or that the user disperses, also use the one-level transponder, the base station number that can cause must being provided with in the identical zone can not reduce, and the number of the actual use of network seldom, and the operation costs of whole system increase greatly like this.
The cascade communication method and the device that the purpose of this invention is to provide a kind of transponder, its cascade by several transponders, flexible configuration can enlarge the coverage of WCDMA communication system to a greater extent.Simultaneously this cascade transponder simplicity of design, maintenance requirement are low, and he not only can be used for monitoring and controlling the signal of WCDMA system sub-district, can also control, amplify radiofrequency signal to satisfy the common counter of WCDMA communication.
The invention provides the cascade communication method of a kind of WCDMA of being used for (Wideband Code Division Multiple Access (WCDMA)) wireless communication system transponder, it is cascaded into up link and down link by several transponders; The communication steps of up link is, carry out mixing, filtering and amplification from the transponder reception that subscriber equipment is nearest from the up radiofrequency signal of subscriber equipment, the transponder of one-level sends backward, after this back one-level transponder receives the signal of previous stage transponder transmission, carrying out after mixing, filtering and the amplification more backward, the one-level transponder sends, so be cascaded to the afterbody transponder, and send to the base station, carry out Base-Band Processing by the base station by this afterbody transponder; The communication steps of down link is, the downlink radio-frequency signal that nearest transponder receives from the base station from the base station carries out mixing, filtering and amplification, to the transponder transmission of one-level backward, after this back one-level transponder receives the signal of previous stage transponder transmission, carrying out after mixing, filtering and the amplification more backward, the one-level transponder sends, so be cascaded to the afterbody transponder, and send to subscriber equipment, carry out Base-Band Processing after the demodulation despreading by subscriber equipment by this afterbody transponder.
In described cascade transponder system, the distance between adjacent two transponders can be the same or different, and its spacing distance comes given according to plot planning and the restriction of itself.The coverage of each transponder is also limited by plot planning and the restriction of itself, can adopt omnidirectional antenna, also can adopt directional antenna, finally realizes the covering in the prescribed limit.If user be in adjacent two transponder coverages the overlapping region, the up radiofrequency signal of subscriber equipment will send to the base station respectively by two adjacent transponders respectively, two footpaths (not comprising the multipath that other reason causes) that extremely I haven't seen you for ages receives same signal different delay, base station, the multipath that the WCDMA base station has merges (Rake reception) function, and two footpaths are merged the back as a signal processing.Same, subscriber equipment also has multipath and merges (Rake reception) function, realizes the reception to down link signal.
Consider the rare and dispersion of some regional number of users, in order to reduce the power consumption of transponder, the present invention also provides a kind of sleep pattern, and when not having the uplink signal of subscriber equipment, this mode can make that uplink processing enters sleep state in the transponder.The circuit of this sleep pattern comprises that upward signal monitoring modular, signal decision module, these three modules of reference signal generation module constitute.Its basic working method is, the upward signal monitoring modular is to measuring through the uplink signal behind the filter, parameters such as the power level of analysis access signal and signal interference ratio, the reference signal generation module produces with reference to comparison signal, the generation reference signal of the information self-adapting that provides by historical record and base station to up link, foundation as a comparison, the signal decision module is analyzed judgement according to reference signal and the live signal that monitors, judge the existence whether upward signal is arranged, if there is up link to exist, then send open command and give power amplifier module, if power amplifier module itself just is in opening, then continue to be held open state, if there is not up link to exist, then send and turn-off order,, then continue to keep off state if power amplifier module itself just is in off state to power amplifier module.
Also have idle pulley in the transponder Cascading Methods of the present invention, every grade of transponder all can be according to the needs of Operation and Maintenance, at any time can be in a kind of idle condition, promptly the radiofrequency signal that the previous stage transponder is sent is no longer handled, and multistage like this transponder then deducts the one-level transponder.In practical operation, Operation and Maintenance platform (O﹠amp; M) control and be connected in each grade transponder, the Operation and Maintenance platform is given the transponder that need close accordingly by issuing configuration information, the radio frequency that cuts off this transponder receives and the radio frequency transmission, improves the transmitting power of the adjacent transponder of this transponder simultaneously, realizes the direct transmission between them.
The device of above-mentioned transponder cascade communication method is formed by a plurality of transponder cascades, and each transponder comprises modules such as reception/transmitting antenna, frequency mixer, filter and power amplifier.
The Cascading Methods of the transponder that the present invention is designed, it realizes cascade by the mutual transmitting radio frequency signal of multistage transponder, can flexible configuration, multistage connection in plot planning, thus enlarge the coverage of WCDMA wireless mobile communications.Such as on highway, a base station adds multistage transponder, just can be in long and narrow scope the scope of spread radio communication, not only configuration is convenient, uses reliably, the more important thing is economy, and operator is reduced cost greatly.Transponder can be in a kind of idle condition at any time according to the needs of Operation and Maintenance simultaneously, promptly relevant radiofrequency signal is not handled, and can realize the flexible configuration of transponder.Sleep pattern provided by the invention in addition, not when the uplink signal of user's equipment, this mode can make that uplink processing enters sleep state in the transponder, reduces receiver noise, reduces the transponder power consumption simultaneously.This sleep mode is more effective for the rare zone that disperses of number of users.Compare with traditional transponder pattern, transponder of the present invention can provide allocation plan more flexibly, can cover more communication range.Simultaneously, multistage transponder of the present invention can satisfy the radio-frequency (RF) index that 3GPP proposes transponder, and these indexs mainly comprise contents such as stray radiation, intermodulation product, the outer gain of band, frequency stability, modulation accuracy, blocking performance.
Below in conjunction with drawings and Examples the present invention is described in further details
Fig. 1 is a conventional repeaters logical construction schematic diagram.
Fig. 2 is a kind of structural representation of cascade transponder.
Fig. 3 is a kind of transponder logical construction schematic diagram that has sleep pattern.
Fig. 4 is a kind of transponder logical construction schematic diagram that has idle pulley.
Fig. 2 is a kind of structural representation of cascade transponder.The cascade communication method of a kind of transponder that this paper relates to is, with a plurality of transponders radiofrequency signal repeatedly sent cascade and forms, and promptly transponder always receives the upper level transponder signal, transmits radiofrequency signal to the next stage transponder.As shown in Figure 2, a base station 201 can have many group cascade transponders, comprises A group 214, B group 215 ..., until N group 216.Every group of cascade transponder can be made of several transponders again, as A group cascade transponder comprise A1 transponder 202, A2 transponder 203 ..., An transponder 204.
Below A group cascade transponder signal stream is analyzed.From up link, user equipment (UE) 205 sends to upward signal apart from its nearest transponder An204, this transponder An204 receives the up radiofrequency signal of UE205, carry out mixing, filtering and power amplification after, with signal backward the transponder 203 of one-level send.Transponder 203 receives after transponder 204 sends to its up radiofrequency signal, carries out sending to transponder 202 after mixing, filtering and the power amplification.Transponder 202 receives after transponder 203 sends to its up radiofrequency signal, carries out sending to base station 201 after mixing, filtering and the power amplification.Afterbody transponder 202 with the upward signal after handling send to base station 201, the 201 pairs of up links in base station are carried out after the demodulation despreading and are made corresponding Base-Band Processing.From down link, base station 201 sends to downstream signal apart from its nearest transponder 202, and this transponder 202 receives the up radiofrequency signal of base stations 201, carry out mixing, filtering and power amplification after, with signal backward the transponder 203 of one-level send.Transponder 203 receives after transponder 202 sends to its downlink radio-frequency signal, carries out sending to transponder 204 after mixing, filtering and the power amplification.Transponder 204 receives after transponder 203 sends to its up radiofrequency signal, carries out mixing, filtering and power amplification rear line equipment 205 and sends.Afterbody transponder 205 with the downstream signal after handling send to subscriber equipment 205,205 pairs of down links of subscriber equipment carry out after the demodulation despreading and make corresponding Base-Band Processing.
More than be that A group cascade transponder signal stream is analyzed, for the B group ..., N group cascade transponder is handled the same, is that the radiofrequency signal transmitted is different.
In the above-described embodiments, if set between A2 transponder 203 and the A1 transponder 202 certain overlapping coverage arranged, there is the user to initiate to insert in the superimposed coverage area of these two transponders, its upward signal will send to transponder 202 by transponder 203, enter base station 201 then, this upward signal also can directly send to transponder 202 simultaneously, sends to base station 201.Two footpaths (not comprising the multipath that other reasons causes) at same signal different delay place are received in base station 201 to I haven't seen you for ages so, and the multipath that the WCDMA base station has merges (Rake reception) function, this signal can be merged the back as same signal processing.Same, subscriber equipment also has multipath and merges (Rake reception) function, realizes the reception to down link signal.
More than distance and coverage between designed transponder can rationally set according to the planning needs.
Fig. 3 is a kind of transponder logical construction schematic diagram that has sleep pattern.The circuit of this sleep pattern is made of upward signal monitoring modular 314, signal decision module 313, reference signal generation module 312.The circuit of this sleep pattern is primarily aimed at uplink signal and handles, and does not have signal if monitor up link, can make then that uplink processing enters sleep state in the transponder, in order to reduce receiver noise and transponder power consumption.
Antenna 308 receives the up link radiofrequency signal that the previous stage transponder sends.Duplexer 307 receives from the up radiofrequency signal of antenna 308 and sends it to frequency mixer 311.311 pairs of signals of frequency mixer carry out frequency to be selected, and obtains the upward signal in this carrier frequency, and this signal is sent to filter 310.Filter 310 carries out sending to power amplifier 309 and upward signal monitoring modular 314 after the Filtering Processing to the received signal.Uplink signal behind 314 pairs of processes of upward signal monitoring modular filter 310 is measured, and analyzes parameters such as inserting signal power strength and signal interference ratio, and correlation measure is sent to signal decision module 313.Reference signal generation module 312 produces with reference to comparison signal, the generation reference signal of the information self-adapting that provides by historical record and base station to up link, and foundation as a comparison, and reference signal sent to the signal decision module.Signal decision module 313 is analyzed judgement according to reference signal that receives and the live signal that monitors, whether judge has upward signal to exist, if there is up link to exist, then send open command and give power amplifier 304, if power amplifier 309 itself just is in opening, then continue to be held open state; If there is not up link to exist, then send and turn-off order to power amplifier 309, if power amplifier 309 itself just is in off state, then continue to keep off state.If power amplifier 309 is in opening, 309 pairs of filters 310 of power amplifier signal of sending to it carries out power amplification and handles so, and the upward signal after will amplifying sends to duplexer 303, and duplexer sends to the next stage transponder with this signal by antenna 302 in wireless space.If power amplifier is in off state, then not to handling from the signal of filter 310.
Fig. 4 is a kind of transponder logical construction schematic diagram that has idle pulley.This cascade transponder comprises that transponder 402, transponder 403, transponder 404, transponder 405 constitute.Operation and Maintenance platform 407 is with transponder 402, transponder 403, transponder 404, transponder 405 difference physical connections.If according to the configuration information of Operation and Maintenance platform 407, reconfigure transponder, configuration information should comprise to transponder 402, transponder 403, transponder 404 configuration information separately so.These configuration informations can allow transponder 403 be in idle condition, and promptly transponder 403 is not handled corresponding radiofrequency signal, directly transmit after allowing transponder 402 strengthen transmitting power with the signal of transponder 404.The realization of idle pulley is that transponder 403 is handled according to the configuration information of Operation and Maintenance platform 407, makes transponder 403 not carry out radio frequency reception and radio frequency transmission.This transponder that has idle pulley helps easy to operate, the flexible configuration of back-stage management, regional customer volume is changed the solution that online problem could be regulated and help to bigger scope in a period of time, if detect transponder 403 problem is arranged, need maintenance, so just can signal directly be transmitted between transponder 402 and transponder 404, do not influence radio communication by the collocation method of idle pulley.
Claims (8)
1, a kind of cascade communication method that is used for WCDMA (Wideband Code Division Multiple Access (WCDMA)) wireless communication system transponder is characterized in that, is cascaded into up link and down link by several transponders;
The communication steps of described up link is, carry out mixing, filtering and amplification from the transponder reception that subscriber equipment is nearest from the up radiofrequency signal of subscriber equipment, the transponder of one-level sends backward, after this back one-level transponder receives the signal of previous stage transponder transmission, carrying out after mixing, filtering and the amplification more backward, the one-level transponder sends, so be cascaded to the afterbody transponder, and send to the base station, carry out Base-Band Processing by the base station by this afterbody transponder;
The communication steps of described down link is, the downlink radio-frequency signal that nearest transponder receives from the base station from the base station carries out mixing, filtering and amplification, to the transponder transmission of one-level backward, after this back one-level transponder receives the signal of previous stage transponder transmission, carrying out after mixing, filtering and the amplification more backward, the one-level transponder sends, so be cascaded to the afterbody transponder, and send to subscriber equipment, carry out Base-Band Processing after the demodulation despreading by subscriber equipment by this afterbody transponder.
2, communication means as claimed in claim 1, it is further characterized in that, after adjacent two transponders receive the up radiofrequency signal of same subscriber equipment transmission in the overlapping region that these two transponder signal cover, send to its next stage transponder respectively, until sending to the base station, signal post-processing of multipath merging (Rake reception) one-tenth is carried out with the signal in two footpaths of this different delay in the base station.
3, communication means as claimed in claim 2, it is further characterized in that described cascade transponder is not received uplink signal within a certain period of time, up link enters sleep state.
4, communication means as claimed in claim 3, it is further characterized in that, described up link enters dormant step, the upward signal monitoring modular is to measuring through the uplink signal behind the filter, parameters such as the power level of analysis access signal and signal interference ratio, the reference signal generation module produces with reference to comparison signal, the reference signal foundation as a comparison that the information self-adapting that provides by historical record and base station to up link produces, the signal decision module is analyzed judgement according to reference signal and the live signal that monitors, judge the existence whether uplink signal is arranged, if there is not up link to exist, send and turn-off order to power amplifier module, if power amplifier module itself just is in off state, then continue to keep off state.
5, as the described communication means of claim 1 to 4, it is further characterized in that, described cascade transponder has idle pulley, each grade transponder all can be according to the needs of Operation and Maintenance, at any time be in a kind of idle condition, the radiofrequency signal that the previous stage transponder sends is no longer handled, and multistage transponder just reduces one-level.
6, communication means as claimed in claim 5, it is further characterized in that the performing step of described idle pulley is Operation and Maintenance platform (O﹠amp; M) control and be connected in each grade transponder, the Operation and Maintenance platform is given the transponder that need close accordingly by issuing configuration information, the radio frequency that cuts off this transponder receives and the radio frequency transmission, improves the transmitting power of the adjacent transponder of this transponder simultaneously, realizes the direct transmission between them.
7, device as claimed in claim 1 is characterized in that, transponder comprises modules such as reception/transmitting antenna, frequency mixer, filter and power amplifier, and whole device is formed by a plurality of transponder cascades.
8, device as claimed in claim 7, it is further characterized in that, the circuit of described sleep pattern comprises, be used for upward signal is carried out the upward signal monitoring modular of Measurement and analysis, be used to produce the reference signal generation module of reference signal, be used for reference signal and live signal are analyzed the signal decision module of judgement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011226722A CN1145290C (en) | 2001-06-27 | 2001-06-27 | Cascade communication method for repeaters of WCDMA wireless communication system and its equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011226722A CN1145290C (en) | 2001-06-27 | 2001-06-27 | Cascade communication method for repeaters of WCDMA wireless communication system and its equipment |
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| Publication Number | Publication Date |
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| CN1394016A true CN1394016A (en) | 2003-01-29 |
| CN1145290C CN1145290C (en) | 2004-04-07 |
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| CNB011226722A Expired - Fee Related CN1145290C (en) | 2001-06-27 | 2001-06-27 | Cascade communication method for repeaters of WCDMA wireless communication system and its equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010028595A1 (en) * | 2008-09-12 | 2010-03-18 | 华为技术有限公司 | Packet gateway and method for saving power consumption |
| CN101026574B (en) * | 2007-01-16 | 2010-08-25 | 华为技术有限公司 | Wireless communication system, fixed station device and signal transmitting method |
| CN103181099A (en) * | 2010-11-03 | 2013-06-26 | 瑞典爱立信有限公司 | Repeater device |
| CN101237640B (en) * | 2007-01-30 | 2014-06-04 | 世意法（北京）半导体研发有限责任公司 | Dormancy mode control for real time service in broadband wireless access communication system |
| CN111464194A (en) * | 2020-04-10 | 2020-07-28 | 纳瓦电子（上海）有限公司 | Wireless signal transfer system and wireless signal transfer method |
-
2001
- 2001-06-27 CN CNB011226722A patent/CN1145290C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101026574B (en) * | 2007-01-16 | 2010-08-25 | 华为技术有限公司 | Wireless communication system, fixed station device and signal transmitting method |
| CN101237640B (en) * | 2007-01-30 | 2014-06-04 | 世意法（北京）半导体研发有限责任公司 | Dormancy mode control for real time service in broadband wireless access communication system |
| WO2010028595A1 (en) * | 2008-09-12 | 2010-03-18 | 华为技术有限公司 | Packet gateway and method for saving power consumption |
| CN103181099A (en) * | 2010-11-03 | 2013-06-26 | 瑞典爱立信有限公司 | Repeater device |
| US9301152B2 (en) | 2010-11-03 | 2016-03-29 | Telefonaktiebolaget L M Ericsson | Repeater device |
| CN111464194A (en) * | 2020-04-10 | 2020-07-28 | 纳瓦电子（上海）有限公司 | Wireless signal transfer system and wireless signal transfer method |
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| Publication number | Publication date |
|---|---|
| CN1145290C (en) | 2004-04-07 |
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