CN102547720A - Method and system for increasing descending transmission bandwidth of wireless access network - Google Patents
Method and system for increasing descending transmission bandwidth of wireless access network Download PDFInfo
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Abstract
The invention discloses a method and a system for increasing descending transmission bandwidth of a wireless access network to improve the utilization ratio of the descending transmission bandwidth, wherein the method comprises the following steps that a first transmitting channel is configured on a descending frequency spectrum of FDD (frequency division duplex) paired frequency spectrums; a first receiving channel and a second transmitting channel are configured on an ascending frequency spectrum of the FDD paired frequency spectrums; a third transmitting channel is configured on an FDD duplex protective frequency band; the first receiving channel and the second transmitting channel use the ascending frequency spectrum of the FDD paired frequency spectrums in a time-division mode in a descending wireless frame period of transmission of the first transmitting channel; the first receiving channel and the second transmitting channel occupy a first time interval and a second time interval in the wireless frame period respectively; and in a time subinterval of the second time interval of the wireless frame period, the first transmitting channel, the second transmitting channel and the third transmitting channel transmit signals simultaneously. According to the technical scheme disclosed by the invention, the FDD duplex protective frequency band is utilized for increasing the descending transmission bandwidth of the wireless access network.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of method and system that increase the wireless access network downstream transmission bandwidth.
Background technology
With respect to traditional speech business, an asymmetry that characteristics are its uplink and downlink business datums of data service, and also under most of application scenarioss, the downlink data transmission amount is greater than up.Along with the increase of data service, there is the low problem of tangible frequency spectrum service efficiency in the uplink and downlink symmetrical spectrum mode that traditional FDD (Frequency Division Duplex, FDD) adopts when supporting non-symmetrical service.
Document IST-2001-35125; D08, " Spectrum Efficient Multicast and AsymmetricServices in UMTS: the multicast and the non-symmetrical service that effectively use frequency spectrum in the land mobile communication system " analyzes the professional asymmetry of 3G from the asymmetry of business, the asymmetry of MPTS and asymmetric three aspects of frequency spectrum.And it is analyzed the dynamic characteristic of non-symmetrical service from user, sub-district, three aspects of system: the professional asymmetry of link level has the height dynamic characteristic, in time/and spatial variations is violent; The professional asymmetry of cell-level has the moderate dynamic characteristic, in time/and the spatial variations degree is medium; And the asymmetry of system-level business has low dynamic characteristic, in time/and the spatial variations degree is slower.
Because mobile communication business is that a sub-district or several neighbor cells are that unit carries out resource distribution; Professional asymmetry variation is the most important foundation that frequency spectrum uses in the sub-district; That is to say; GSM will be abideed by this principle of frequency spectrum configuration of supporting non-symmetrical service when the up-downgoing frequency spectrum resource configuration of considering the sub-district: be unit configuration up-downgoing resource with the sub-district, and the moderate of wanting to catch up with the professional asymmetry of up-downgoing changes.
For the FDD system; A kind of non-symmetrical service that solves is just can accurately dope following business features in the frequency spectrum planning stage to the method for non-symmetrical spectrum demand, thereby cooks up the FDD frequency spectrum that meets professional asymmetric characteristics according to the asymmetric characteristics (like asymmetric degree) of business.But correlative study is also pointed out, predicts the method for the asymmetry of following business at present.Therefore, in theory just can't let the FDD system deacclimatize the frequency spectrum distributing method of non-symmetrical service at present.
Another kind of solution is to utilize TDD (Time Division Duplex: time division duplex) system supports non-symmetrical service; Because the TDD system can dynamically adapt to professional asymmetry and burst characteristic; From the actual power system capacity that can reach (bandwidth of TDD system identical condition under) with the upstream and downstream bandwidth sum of FDD system; Because the difference of professional asymmetry, the power system capacity of TDD system can exceed 69% than the power system capacity of FDD system.But this scheme can not solve FDD system low problem of frequency spectrum service efficiency under the non-symmetrical service situation.
In existing patented technology or patent application, also occurred and the discussion of using TDD, FDD duplex mode flexibly.
Name is called in No. 20050174954 patent applications of US of " method (Method ofoperating a TDD/virtual FDD hierarchical cellular telecommunication system) of moving the virtual FDD hierarchical cellular of a TDD/ communication system "; Provided under the situation that the TDD system is covered by the FDD system; Use idle component in the uplink spectrum of FDD as the data feedback channel of terminal FDD working method; Use the down going channel of TDD frequency spectrum, thereby form the FDD duplex mode of " virtual " as terminal FDD working method.
Name is called in the CN200610011284 patent application of " a kind of system and method for realizing cooperative dual duplex "; Provided a kind of realize the TDD duplex on the FDD uplink spectrum and with FDD uplink spectrum and TDD frequency spectrum between be used the semiduplex flexibly method of formation; And two receive paths that utilize the terminal are simultaneously on FDD downstream spectrum and FDD uplink spectrum; Perhaps on the frequency spectrum of FDD downstream spectrum and the two-way use of TDD, receive simultaneously the method for data concurrently, it is used to realize on half-duplex fdd mode, tdd mode, the terminal, and the wireless signal environmental data is measured, on the terminal high-speed data download and/or the terminal on Parallel Implementation communication and data download.
But No. 20050174954 patent applications of above-mentioned US can not be used for the uplink spectrum of FDD descending neatly, therefore can not increase downstream transmission bandwidth in the wireless access network.Above-mentioned CN200610011284 patent application does not provide how wireless access network sends data simultaneously concurrently on the frequency spectrum of the two-way use of TDD and FDD uplink spectrum method.
Summary of the invention
Technical problem to be solved by this invention is that a kind of technology that increases the wireless access network downstream transmission bandwidth need be provided, to improve the utilance of downstream transmission bandwidth.
In order to solve the problems of the technologies described above; The invention provides a kind of method that increases the wireless access network downstream transmission bandwidth; Configuration first transmission channel on the downstream spectrum of the paired frequency spectrum of FDD (FDD); Configuration first receive path and second transmission channel on the uplink spectrum of the paired frequency spectrum of FDD, configuration the 3rd transmission channel on FDD duplex protection frequency band; This method comprises:
In a downlink radio frame of first transmission channel emission in the cycle; Said first receive path and second transmission channel use the uplink spectrum of the paired frequency spectrum of said FDD with time division way; Said first receive path takies the very first time interval of said wireless frame period; Said second transmission channel takies second time interval of said wireless frame period; And in the chronon interval in second time interval of said wireless frame period, said first transmission channel, second transmission channel and the 3rd transmission channel transmit simultaneously.
Preferably, said FDD duplex protection frequency band comprises:
Distribute to the middle duplex protection frequency band that does not belong to time division duplex (TDD) licensed band of the paired frequency band of uplink and downlink that the FDD system uses; Perhaps
Distribute to upstream band and the duplexing frequency band of protecting of the FDD up-downgoing that belongs to the TDD licensed band in the middle of the downstream bands that the FDD system uses.
Preferably; The duplex protection frequency band that does not belong to the TDD licensed band in the middle of the paired frequency band of the uplink and downlink that the said FDD of distributing to system uses is included in the duplex protection frequency band in the middle of 790～862 megahertzes (MHz) frequency band of distributing to Long Term Evolution (LTE) FDD system; The FDD up-downgoing duplex protection frequency band that belongs to the TDD licensed band in the middle of the upstream band that the said FDD of distributing to system uses and the downstream bands, the duplex that is included in the middle of 2500～2690MHz is protected frequency band.
Preferably, said second transmission channel and the 3rd transmission channel, be two at radio-frequency transmissions passage or be and penetrate passage independently physically taking place frequently of unified design physically.
Preferably; Said second transmission channel and the 3rd transmission channel be two physically independently during the radio-frequency transmissions passage; Use separately independently power amplifier to realize being operated in the FDD upstream band respectively and protect the transmission channel on the frequency band with the FDD duplex, and the physical carrier of each spontaneous emission oneself; Said second transmission channel and the 3rd transmission channel be one when the radio-frequency transmissions passage of unified design physically; Use same power amplifier to realize being operated in the transmission channel on FDD upstream band and the FDD duplex protection frequency band, and on FDD upstream band and FDD duplex protection frequency band, launch independently physical carrier respectively; Perhaps, use same power amplifier to realize being operated in the transmission channel on FDD upstream band and the duplexing protection of the FDD frequency band, and the signal that emission is modulated by same physical carrier on FDD upstream band and FDD duplex protection frequency band.
Preferably, the modulation system of the signal of said second transmission channel emission, identical or different with the modulation system of the signal that receives on the FDD upstream band.
The modulation bandwidth of the signal that preferably, receives on the channel width of said second transmission channel and the FDD upstream band is identical or different.
Preferably, the radio frames of said second transmission channel emission comprises:
A part of time slot of whole time slots that complete FDD downlink radio frame cycle is comprised; Perhaps, descending time slot that complete TDD wireless frame period is comprised.
Preferably, the radio frames of said the 3rd transmission channel emission comprises:
Whole time slots that complete FDD downlink radio frame cycle is comprised or a part of time slot wherein; Perhaps, the whole descending time slots that comprised in complete TDD wireless frame period or a part of descending time slot wherein.
Preferably, the size of said very first time interval and said second time interval is adjusted according to the professional degree of asymmetry of the uplink and downlink on the specific region of wireless access network service.
Preferably, the step that size interval and said second time interval of the said very first time is adjusted according to said degree of asymmetry comprises:
When the downlink service data in the sub-district equated with uplink business data or is in poised state, the time value that disposes said second time interval was zero;
When the downlink service data in the sub-district can not satisfy business demand greater than the downstream spectrum of uplink business data and FDD; Said second time interval is configured to non-vanishing time value, in said second time interval, uses FDD uplink spectrum and/or FDD duplex protection frequency band to be used for downlink.
Preferably, the professional degree of asymmetry of uplink and downlink on the specific region of said wireless access network service, judge according at least a in the following method:
(1) network side is added up the asymmetric ratio of up-downgoing of the current business that has inserted and/or the asymmetric ratio that frequency spectrum takies situation in real time;
(2) network side basis statistics is in the past predicted the non-symmetrical service degree of specific cell, with this foundation as initial configuration second time interval size.
Preferably, in the chronon interval in second time interval of said radio frames, the step that said first transmission channel, second transmission channel and the 3rd transmission channel transmit simultaneously comprises:
In said chronon interval, the signal on said first transmission channel, second transmission channel and the 3rd transmission channel is in emission state simultaneously.
Preferably, keep slot synchronization between the radio frames that has at least two transmission channels to launch in said first transmission channel, second transmission channel and the 3rd transmission channel.
Preferably, keep the step of slot synchronization between said two transmission channels, comprising:
The time slot that comprises in the radio frames of said two each spontaneous emissions of transmission channel leaves the absolute value of error of the identical or zero-time of the zero-time of antenna actinal surface less than a preset time error threshold.
Preferably, the step that said first transmission channel, second transmission channel and the 3rd transmission channel transmit simultaneously comprises:
Said first transmission channel, second transmission channel and the 3rd transmission channel transmit to same terminal or different terminal simultaneously.
In order to solve the problems of the technologies described above, the present invention also provides a kind of system that increases the wireless access network downstream transmission bandwidth, comprise module and administration module are set, wherein:
The said module that is provided with; Be used for configuration first transmission channel on the downstream spectrum of the paired frequency spectrum of FDD (FDD); Configuration first receive path and second transmission channel on the uplink spectrum of the paired frequency spectrum of FDD, configuration the 3rd transmission channel on FDD duplex protection frequency band;
Said administration module is used to control said first receive path, first transmission channel, second transmission channel and the 3rd transmission channel according to working as follows:
In a downlink radio frame of first transmission channel emission in the cycle; Said first receive path and second transmission channel use the uplink spectrum of the paired frequency spectrum of said FDD with time division way; Said first receive path takies the very first time interval of said wireless frame period; Said second transmission channel takies second time interval of said wireless frame period; And in the chronon interval in second time interval of said wireless frame period, said first transmission channel, second transmission channel and the 3rd transmission channel transmit simultaneously.
Preferably, the said module that is provided with is used for said the 3rd transmission channel of configuration on the FDD duplex protection frequency band that is described below:
Distribute to the middle duplex protection frequency band that does not belong to time division duplex (TDD) licensed band of the paired frequency band of uplink and downlink that the FDD system uses; Perhaps
Distribute to upstream band and the duplexing frequency band of protecting of the FDD up-downgoing that belongs to the TDD licensed band in the middle of the downstream bands that the FDD system uses.
Preferably; The said module that is provided with is used for said the 3rd transmission channel of configuration on the duplex protection frequency band that does not belong to the TDD licensed band in the middle of the paired frequency band of the uplink and downlink that the said FDD of distributing to system uses, and is included in said the 3rd transmission channel of configuration on the duplex protection frequency band in the middle of 790～862 megahertzes (MHz) frequency band of distributing to LTE FDD system; The said module that is provided with is used for said the 3rd transmission channel of configuration on the FDD up-downgoing duplex protection frequency band that belongs to the TDD licensed band in the middle of upstream band that the said FDD of distributing to system uses and the downstream bands, is included on the duplex protection frequency band in the middle of 2500～2690MHz and disposes said the 3rd transmission channel.
Preferably, said module set said second transmission channel and the 3rd transmission channel of being provided with, be two at radio-frequency transmissions passage or be and penetrate passage independently physically taking place frequently of unified design physically.
Preferably; Said be provided with set said second transmission channel of module and the 3rd transmission channel be two physically independently during the radio-frequency transmissions passage; Said administration module is used to control said second transmission channel and the 3rd transmission channel to be used separately independently power amplifier to realize being operated in the FDD upstream band respectively to protect the transmission channel on the frequency band with the FDD duplex, and the physical carrier of each spontaneous emission oneself; Said be provided with set said second transmission channel of module and the 3rd transmission channel be one when the radio-frequency transmissions passage of unified design physically; Said administration module is used to control said second transmission channel and the 3rd transmission channel uses same power amplifier to realize being operated in the transmission channel on FDD upstream band and the FDD duplex protection frequency band, and on FDD upstream band and FDD duplex protection frequency band, launches independently physical carrier respectively; Perhaps; Said administration module is used to control said second transmission channel and the 3rd transmission channel uses same power amplifier to realize being operated in the transmission channel on FDD upstream band and the duplexing protection of the FDD frequency band, and the signal that emission is modulated by same physical carrier on FDD upstream band and FDD duplex protection frequency band.
Preferably, the said modulation system that the signal of set said second transmission channel emission of module is set, identical or different with the modulation system of the signal that receives on the FDD upstream band;
The modulation bandwidth of the signal that receives on said channel width that set said second transmission channel of module is set and the FDD upstream band is identical or different;
The radio frames of said second transmission channel emission of said administration module control comprises:
A part of time slot of whole time slots that complete FDD downlink radio frame cycle is comprised; Perhaps, the descending time slot that comprised of complete TDD downlink radio frame cycle.
Preferably, the radio frames of said the 3rd transmission channel emission of said administration module control comprises:
Whole time slots that complete FDD downlink radio frame cycle is comprised or a part of time slot wherein; Perhaps, the whole descending time slots that comprised in complete TDD wireless frame period or a part of time slot wherein.
Preferably; Said administration module is controlled the said very first time interval that said first receive path takies radio frames; Reach said administration module and control the size that said second transmission channel takies said second time interval of radio frames, adjust according to the degree of asymmetry that the uplink and downlink on the specific region of wireless access network service are professional.
Preferably, said administration module is used to adopt following mode, and size interval to the said very first time and said second time interval is adjusted:
When the downlink service data in the sub-district equated with uplink business data or is in poised state, the time value that disposes said second time interval was zero;
When the downlink service data in the sub-district can not satisfy business demand greater than the downstream spectrum of uplink business data and FDD; Said second time interval is configured to non-vanishing time value, in said second time interval, uses FDD uplink spectrum and/or FDD duplex protection frequency band to be used for downlink.
Preferably, said administration module is used for according to the professional degree of asymmetry of uplink and downlink on the specific region of the said wireless access network service of at least a judgement of following method:
(1) network side is added up the asymmetric ratio of up-downgoing of the current business that has inserted and/or the asymmetric ratio that frequency spectrum takies situation in real time;
(2) network side basis statistics is in the past predicted the non-symmetrical service degree of specific cell, with this foundation as initial configuration second time interval size.
Preferably, said administration module is used in said chronon interval, and the signal of controlling on said first transmission channel, second transmission channel and the 3rd transmission channel is in emission state simultaneously; Said administration module is used to control said first transmission channel, second transmission channel and the 3rd transmission channel and transmits to same terminal or different terminal simultaneously.
Preferably, said administration module is used for controlling between the radio frames that said first transmission channel, second transmission channel and the 3rd transmission channel have at least two transmission channels to launch and keeps slot synchronization; Said administration module is used for controlling the absolute value of error that time slot that the radio frames of said two each spontaneous emissions of transmission channel comprises leaves the identical or zero-time of the zero-time of antenna actinal surface less than a preset time error threshold.
Compared with prior art; The technical scheme that the present invention provides; Utilize FDD duplex protection frequency band to increase the wireless access network downstream transmission bandwidth; Up licensed band and FDD duplex through in the FDD system are protected configurating downlink channel on the frequency band, have improved the downstream transmission bandwidth of wireless access network, have improved the tenability of wireless access network to the up-downgoing non-symmetrical service.
Other features and advantages of the present invention will be set forth in specification subsequently, and, partly from specification, become obvious, perhaps understand through embodiment of the present invention.The object of the invention can be realized through the structure that in specification, claims and accompanying drawing, is particularly pointed out and obtained with other advantages.
Description of drawings
Accompanying drawing is used to provide the further understanding to technical scheme of the present invention, and constitutes the part of specification, is used to explain technical scheme of the present invention with embodiments of the invention, does not constitute the restriction to technical scheme of the present invention.In the accompanying drawings:
Fig. 1 is the method flow sketch map that the embodiment of the invention increases the wireless access network downstream transmission bandwidth;
Fig. 2 (a) is at FDD uplink and downlink frequency spectrum and the duplexing sketch map of protecting the first kind of mode that transmits on the frequency band of FDD;
Fig. 2 (b) is at FDD uplink and downlink frequency spectrum and the duplexing sketch map of protecting the second way that transmits on the frequency band of FDD;
Fig. 2 (c) is at FDD uplink and downlink frequency spectrum and the duplexing sketch map of protecting the third mode that transmits on the frequency band of FDD;
Fig. 3 (a) is the use sketch map of application example one of the present invention FDD up-downgoing frequency spectrum in very first time interval;
Fig. 3 (b) is application example one of the present invention FDD up-downgoing frequency spectrum and duplexing use sketch map of protecting frequency band of FDD in second time interval;
Fig. 4 (a) is application example two of the present invention FDD up-downgoing frequency spectrum and duplexing use sketch map of protecting frequency band of FDD in very first time interval;
Fig. 4 (b) is application example two of the present invention FDD up-downgoing frequency spectrum and duplexing use sketch map of protecting frequency band of FDD in second time interval;
Fig. 5 is system's composition sketch map that the embodiment of the invention increases the wireless access network downstream transmission bandwidth.
Embodiment
Below will combine accompanying drawing and embodiment to specify execution mode of the present invention, how the application technology means solve technical problem to the present invention whereby, and the implementation procedure of reaching technique effect can make much of and implement according to this.
At first, if do not conflict, the mutually combining of each characteristic among the embodiment of the invention and the embodiment is all within protection scope of the present invention.In addition; Can in computer system, carry out in the step shown in the flow chart of accompanying drawing such as a set of computer-executable instructions, and, though logical order has been shown in flow chart; But in some cases, can carry out step shown or that describe with the order that is different from here.
The method of embodiment one, increase wireless access network downstream transmission bandwidth
As shown in Figure 1, present embodiment mainly comprises the steps:
Step S110, configuration first transmission channel on the downstream spectrum of the paired frequency spectrum of FDD, configuration first receive path and second transmission channel on the uplink spectrum of the paired frequency spectrum of FDD, configuration the 3rd transmission channel on FDD duplex protection frequency band;
Step S120; In a downlink radio frame of first transmission channel emission in the cycle; First receive path and second transmission channel use the uplink spectrum of the paired frequency spectrum of FDD with time division way; First receive path takies the very first time interval of this wireless frame period, and second transmission channel takies second time interval of this wireless frame period, and; In the chronon interval in second time interval of said wireless frame period, first transmission channel, second transmission channel and the 3rd transmission channel transmit simultaneously.
What need give explanation earlier is that above-mentioned steps S110 is pre-configured step, when practical implementation and application, is not that each use method of the present invention is all carried out once pre-configured.More common, pre-configured once after, can limited number of time or unlimited ground operating procedure S120, this operational mode should be regarded as concrete application a kind of of the inventive method.
Above-mentioned FDD duplex protection frequency band can be a kind of in the following frequency band:
(1) distributes to the middle duplex protection frequency band that does not belong to the TDD licensed band of the paired frequency band of uplink and downlink that the FDD system uses; Such as, at middle duplex protection frequency band: the 821MHz～832MHz of 790～862 megahertzes (MHz) frequency band of distributing to Long Term Evolution (LTE) FDD system;
(2) distribute to upstream band and the duplexing frequency band of protecting of the FDD up-downgoing that belongs to the TDD licensed band in the middle of the downstream bands that the FDD system uses; Such as, duplex protection frequency band: the 2570MHz～2620MHz in the middle of 2500～2690MHz.
Above-mentioned second transmission channel and the 3rd transmission channel, its implementation can be a kind of in the following implementation:
(1) be two and use separately independently power amplifier to realize being operated in the FDD upstream band respectively and protect the transmission channel on the frequency band with the FDD duplex at radio-frequency transmissions passage independently physically, and the physical carrier of each spontaneous emission oneself;
(2) be a radio-frequency transmissions passage in unification design physically; Use same power amplifier to realize being operated in the transmission channel on FDD upstream band and the FDD duplex protection frequency band, and on FDD upstream band and FDD duplex protection frequency band, launch independently physical carrier respectively;
(3) be a radio-frequency transmissions passage in unification design physically; Use same power amplifier to realize being operated in the transmission channel on FDD upstream band and the duplexing protection of the FDD frequency band, and the signal that emission is modulated by same physical carrier on FDD upstream band and FDD duplex protection frequency band.
The signal of above-mentioned first transmission channel emission and the wireless frame structure of use are observed wireless technology specifications, such as, the technical specification that 3GPP organizes to set up.
The signal that above-mentioned first receive path receives and the wireless frame structure of use are observed wireless technology specifications, such as, the technical specification that 3GPP organizes to set up.
The modulation system of the signal of above-mentioned second transmission channel emission can be identical with the modulation system of the signal that receives on the FDD upstream band, also can be different.
The channel width of above-mentioned second transmission channel can be identical with the modulation bandwidth of the signal that receives on the FDD upstream band, also can be different.
The channel width of above-mentioned second transmission channel can be identical with the channel width of this first transmission channel, also can be different.
The modulation system of the signal of above-mentioned second transmission channel emission can be identical with the modulation system on this first transmission channel, also can be different.
The physical carrier number of above-mentioned second transmission channel emission can be one or more (when special declaration not, the alleged a plurality of expressions of the present invention two or more).
The modulation system of the signal of above-mentioned the 3rd transmission channel emission can be identical with the modulation system on this second transmission channel, also can be different.
The physical carrier number of above-mentioned the 3rd transmission channel emission can be one or more.
The radio frames of above-mentioned second transmission channel emission can be a kind of in the following radio frames:
A part of time slot of whole time slots that (1) complete FDD downlink radio frame cycle is comprised;
(2) descending time slots that complete TDD wireless frame period is comprised.
The radio frames of above-mentioned the 3rd transmission channel emission can be a kind of in the following radio frames:
Whole time slots that (1) complete FDD downlink radio frame cycle is comprised, referring to Fig. 2 (b), or a part of time slot wherein, referring to Fig. 2 (a);
The whole descending time slots that comprise in (2) complete TDD wireless frame period, referring to Fig. 2 (c), or a part of descending time slot wherein, referring to Fig. 2 (a).
Wherein, Fig. 2 (a) only is used for the sketch map of downlink at second time interval for FDD protection frequency band; Fig. 2 (b) all is used for the sketch map of downlink in whole wireless frame period for FDD protection frequency band; Fig. 2 (c) is used for time division duplex for FDD protection frequency band and in second time interval, is used for the sketch map of downlink.
Above-mentioned first receive path takies the very first time interval of radio frames; Second transmission channel takies in second time interval of radio frames; The very first time of radio frames, size interval and second time interval can be adjusted according to the professional degree of asymmetry of the uplink and downlink on the specific region of wireless access network service, and concrete method of adjustment can be:
When the downlink service data in the sub-district equated with uplink business data or is in poised state, the time value that disposes second time interval was zero, promptly FDD uplink spectrum and FDD duplex protection frequency band was not used for downlink;
When the downlink service data in the sub-district can not satisfy business demand greater than the downstream spectrum of uplink business data and FDD; Second time interval is configured to non-vanishing time value; In second time interval, use FDD uplink spectrum and/or FDD duplex protection frequency band to be used for downlink.
The method that the professional degree of asymmetry of up-downgoing is judged can be at least a (can be wherein a kind of, also can be the various combinations of the whole bag of tricks) in the following method:
(1) network side is added up the asymmetric ratio of up-downgoing of the current business that has inserted and/or the asymmetric ratio that frequency spectrum takies situation in real time;
(2) network side basis statistics is in the past predicted the non-symmetrical service degree of specific cell, with this foundation as initial configuration second time interval size.
In the above-mentioned chronon interval in second time interval of this radio frames; First transmission channel, second transmission channel and the 3rd transmission channel transmit simultaneously; Be meant and have such chronon interval; In this chronon interval, the signal on first transmission channel, second transmission channel and the 3rd transmission channel is in emission state simultaneously.
Further, in the emission process of first transmission channel, second transmission channel and the 3rd transmission channel, keep slot synchronization between the radio frames that has at least two transmission channels to launch in these three transmission channels.Wherein, Keep slot synchronization to comprise between said two transmission channels: the time slot that comprises in the radio frames of two each spontaneous emissions of transmission channel leaves the absolute value of error of the identical or zero-time of the zero-time of antenna actinal surface less than a preset time error threshold; Typically, this time error thresholding is got the value less than 100 microseconds.
In the above-mentioned chronon interval in second time interval of this radio frames, first transmission channel, second transmission channel and the 3rd transmission channel transmit simultaneously, can be to the emission of same terminal, also can be to launch to different terminal.
Application example one, increase the method for downlink bandwidth for being operated in wireless access network on 790MHz～862MHz frequency range
On German 790MHz～862MHz frequency range, be deployed with 3 LTE FDD systems of three operators, wherein:
The bandwidth that first operator has is that the paired frequency band of the FDD of 10MHz is: descending 791～801MHz, up 832～842MHz;
The bandwidth that second operator has is that the paired frequency band of the FDD of 10MHz is: descending 801～811MHz, up 842～852MHz;
The bandwidth that the 3rd operator has is that the paired frequency band of the FDD of 10MHz is: descending 811～821MHz, up 852～862MHz;
11MHz bandwidth between 821MHz～832MHz is the duplex protection frequency band that the up-downgoing transmitting-receiving of FDD system is isolated that is used for that is not assigned with use.
Three operators are respectively at described first transmission channel of downstream spectrum deploy the above embodiment of the present invention of the paired frequency spectrum of above-mentioned FDD that has separately; Should use in the instance, first transmission channel is that bandwidth is the transmission channel of the LTE FDD transmitter of 10MHz.
Three operators are respectively at first receive path described in uplink spectrum deploy the above embodiment of the present invention of the paired frequency spectrum of above-mentioned FDD that has separately; Should use in the instance, first receive path is that bandwidth is the receive path of the LTE FDD receiver of 10MHz.
Three operators are the 3rd transmission channel of 10MHz in bandwidth of the FDD of 11MHz bandwidth duplex protection frequency band deploy jointly; Should use in the instance, the 3rd transmission channel is a FDD downlink passage, and this downlink passage is shared by three operators.
Fig. 3 should use the frequency spectrum of instance to use sketch map.
In the very first time interval of a radio frames shown in Fig. 3 (a); Three of three operators provide service according to the fdd mode of routine to the terminal as the LTE FDD receive path of first receive path as the LTE FDD transmission channel of first transmission channel and three; Comprise; The terminal is inserted LTE FDD system and is carried out two-way communication (wherein, DL representes down link, and UL representes up link) with LTE FDD system on first receive path.
The very first time interval with shown in Fig. 3 (a) shown in Fig. 3 (b) belongs in second time interval of a radio frames; Three operators all use second transmission channel to carry out downlink on the FDD uplink spectrum that it has; And the 3rd transmission channel that is configured on the FDD duplex protection frequency band also synchronously sends downlink data with second transmission channel in second time interval.
When carrying out the downlink data transmission; Network side is according to up-downgoing business in the sub-district of its service is carried out real-time statistics; Enough idle upstream frequency resources are arranged and downstream frequency resource can not satisfy the needs of downlink business the time in the very first time interval of current configuration, further enlarge the ratio that second time interval accounts in a radio frames.The adjusting of this concrete ratio, the number of timeslots that occupied the launch time that comprising increases the 3rd transmission channel and second transmission channel in a radio frames.
In the present embodiment; Suppose that second time interval accounts for total timeslot number half the of radio frames, like this, the upstream band that three operators just have in the half the paired frequency spectrum of FDD is used to downlink transfer; Add the FDD protection frequency band of the shared 10MHz of three operators; The downstream transmission bandwidth of each extra acquisition of operator is 6.8MHz, is equivalent under the frequency distributing mode of existing 790MHz～862MHz frequency range, and the downlink business ability has increased by 68%.This computational process is following:
Before adopting the described frequency spectrum occupation mode of the above embodiment of the present invention, the downlink bandwidth of each operator was 10MHz originally.After adopting the described frequency spectrum occupation mode of the above embodiment of the present invention, the bandwidth of operator is (simply, being used for descending with the half the time slot of FDD):
(the protection frequency band of 11MHz is used in also can the half the time in radio frames under this mode descending 10MHz (FDD is descending)+5MHz (equivalence of the half the time of FDD 10MHz UL is 5MHz)+1.8MHz; Be equivalent to increase the downlink bandwidth of 5.5MHz; After giving three operators; Each operator gets about 1.8MHz)=16.8MHz, just be equivalent to not have many downlink bandwidths that must 6.8MHz with operator, the downlink business ability has improved 68%.
Application example two, increase the method for downlink bandwidth for being operated in wireless access network on 2500MHz～2690MHz frequency range
On German 2500MHz～2570MHz and 2620MHz～2690MHz frequency range, be deployed with the LTE FDD system of four operators.The duplex protection frequency band that the FDD system up-downgoing transmitting-receiving of the 50MHz bandwidth between 2570MHz～2620MHz is isolated is the frequency band that permission uses for the TDD system.
Four operators are respectively at downstream spectrum deploy first transmission channel of the present invention of the paired frequency spectrum of above-mentioned FDD that has separately; Should use in the instance, first transmission channel is the transmission channel of LTE FDD transmitter.
Four operators are respectively at uplink spectrum deploy first receive path of the present invention and second transmission channel of the paired frequency spectrum of above-mentioned FDD that has separately; Should use in the instance, first receive path is the receive path of LTE FDD receiver.
Three operators are protecting one or more the 3rd transmission channel of frequency band deploy in the FDD of 50MHz bandwidth duplex jointly, and in application example, the 3rd transmission channel is a FDD downlink passage.
Fig. 4 should use the frequency spectrum of instance to use sketch map.
In the very first time interval of a radio frames shown in Fig. 4 (a); The LTE FDD transmission channel of conduct first transmission channel of four operators and to the terminal service is provided according to the fdd mode of routine as the LTE FDD receive path of first receive path comprises in the following method of service one or more:
(1) terminal is inserted LTE FDD system and is carried out two-way communication with LTE FDD system on first receive path;
(2) terminal is inserted LTE TDD system and is carried out two-way communication with LTE TDD system on the 3rd frequency band.
The very first time interval with shown in Fig. 4 (a) shown in Fig. 4 (b) belongs in second time interval of a radio frames; Four operators all use second transmission channel to carry out downlink on the FDD uplink spectrum that it has; And the 3rd transmission channel that is configured on the FDD duplex protection frequency band also synchronously sends downlink data with second transmission channel in second time interval.
Should use in the instance; Network side is according to up-downgoing business in the sub-district of its service is carried out real-time statistics; Enough idle upstream frequency resources are arranged and downstream frequency resource can not satisfy the needs of downlink business the time in the very first time interval of current configuration, further enlarge the ratio that second time interval accounts in a radio frames.The adjusting of this concrete ratio, the number of timeslots that occupied the launch time that comprising increases the 3rd transmission channel and second transmission channel in a radio frames.
Should use in the instance; Owing to all be the transmission channel of configuration on whole 2500MHz～2690MHz frequency range in second time interval; In this time interval, do not exist the up-downgoing duplex protection problem of FDD to carry; Also do not have the transmitting-receiving interference problem between FDD system and TDD system, therefore, the frequency spectrum service efficiency last to 2500MHz～2690MHz reached maximization.
The system of embodiment two, increase wireless access network downstream transmission bandwidth
In conjunction with embodiment illustrated in fig. 1 one, as shown in Figure 5, present embodiment mainly comprises module 510 and administration module 520 is set, wherein:
Module 510 is set; Be used for configuration first transmission channel on the downstream spectrum of the paired frequency spectrum of FDD (FDD); Configuration first receive path and second transmission channel on the uplink spectrum of the paired frequency spectrum of FDD, configuration the 3rd transmission channel on FDD duplex protection frequency band;
Administration module 520 and is provided with module 510 and links to each other, and is used to control this first receive path, first transmission channel, second transmission channel and the 3rd transmission channel according to working as follows:
In a downlink radio frame of first transmission channel emission in the cycle; This first receive path and second transmission channel use the uplink spectrum of the paired frequency spectrum of this FDD with time division way; This first receive path takies the very first time interval of said wireless frame period; This second transmission channel takies second time interval of said wireless frame period; And in the chronon interval in second time interval of this wireless frame period, this first transmission channel, second transmission channel and the 3rd transmission channel transmit simultaneously.
The above-mentioned module 510 that is provided with is used for configuration the 3rd transmission channel on the FDD duplex protection frequency band that is described below:
Distribute to the middle duplex protection frequency band that does not belong to time division duplex (TDD) licensed band of the paired frequency band of uplink and downlink that the FDD system uses; Perhaps
Distribute to upstream band and the duplexing frequency band of protecting of the FDD up-downgoing that belongs to the TDD licensed band in the middle of the downstream bands that the FDD system uses.
The above-mentioned module 510 that is provided with is used for configuration the 3rd transmission channel on the duplex protection frequency band of distributing in the middle of the paired frequency band of uplink and downlink that the FDD system uses that does not belong to the TDD licensed band, is included in configuration the 3rd transmission channel on the duplex protection frequency band in the middle of 790～862 megahertzes (MHz) frequency band of distributing to LTE FDD system.
The above-mentioned module 510 that is provided with is used for configuration the 3rd transmission channel on the FDD up-downgoing duplex protection frequency band that belongs to the TDD licensed band in the middle of the upstream band of distributing to the use of FDD system and the downstream bands, is included in configuration the 3rd transmission channel on the middle duplex protection frequency band of 2500～2690MHz.
Above-mentioned module 510 set this second transmission channel and the 3rd transmission channel of being provided with, be two at radio-frequency transmissions passage or be and penetrate passage independently physically taking place frequently of unified design physically.
Above-mentioned be provided with this set second transmission channel of module 510 and the 3rd transmission channel be two physically independently during the radio-frequency transmissions passage; This administration module 520 is used to control this second transmission channel and the 3rd transmission channel to be used separately independently power amplifier to realize being operated in the FDD upstream band respectively to protect the transmission channel on the frequency band with the FDD duplex, and the physical carrier of each spontaneous emission oneself;
Above-mentioned be provided with this set second transmission channel of module 510 and the 3rd transmission channel be one when the radio-frequency transmissions passage of unified design physically; This administration module 520 is used to control this second transmission channel and the 3rd transmission channel uses same power amplifier to realize being operated in the transmission channel on FDD upstream band and the FDD duplex protection frequency band, and on FDD upstream band and FDD duplex protection frequency band, launches independently physical carrier respectively; Perhaps; This administration module 520 is used to control this second transmission channel and the 3rd transmission channel uses same power amplifier to realize being operated in the transmission channel on FDD upstream band and the duplexing protection of the FDD frequency band, and the signal that emission is modulated by same physical carrier on FDD upstream band and FDD duplex protection frequency band.
The above-mentioned modulation system that the signal of this set second transmission channels emission of module 510 is set, identical or different with the modulation system of the signal that receives on the FDD upstream band.
The modulation bandwidth of the signal that receives on above-mentioned channel width that this set second transmission channel of module 510 is set and the FDD upstream band is identical or different.
The radio frames of this second transmission channel emission of above-mentioned administration module 520 controls comprises:
A part of time slot of whole time slots that complete FDD downlink radio frame cycle is comprised;
Perhaps, the descending time slot that comprised of complete TDD downlink radio frame cycle.
The radio frames of the 3rd transmission channel emission of above-mentioned administration module 520 controls comprises:
Whole time slots that complete FDD downlink radio frame cycle is comprised or a part of time slot wherein;
Perhaps, the whole descending time slots that comprised in complete TDD wireless frame period or a part of time slot wherein.
This very first time that above-mentioned administration module 520 these first receive paths of control take radio frames is interval; Reach the size that above-mentioned administration module 520 these second transmission channels of control take this second time interval of radio frames, adjust according to the degree of asymmetry that the uplink and downlink on the specific region of wireless access network service are professional.
Above-mentioned administration module 520 is used to adopt following mode, and size interval to this very first time and this second time interval is adjusted:
When the downlink service data in the sub-district equated with uplink business data or is in poised state, the time value that disposes this second time interval was zero;
When the downlink service data in the sub-district can not satisfy business demand greater than the downstream spectrum of uplink business data and FDD; This second time interval is configured to non-vanishing time value, in this second time interval, uses FDD uplink spectrum and/or FDD duplex protection frequency band to be used for downlink.
Above-mentioned administration module 520 is used for according to the professional degree of asymmetry of uplink and downlink on the specific region of this wireless access network service of at least a judgement of following method:
(1) network side is added up the asymmetric ratio of up-downgoing of the current business that has inserted and/or the asymmetric ratio that frequency spectrum takies situation in real time;
(2) network side basis statistics is in the past predicted the non-symmetrical service degree of specific cell, with this foundation as initial configuration second time interval size.
Above-mentioned administration module 520 is used in this chronon interval, and the signal of controlling on this first transmission channel, second transmission channel and the 3rd transmission channel is in emission state simultaneously.
Above-mentioned administration module 520 is used for controlling between the radio frames that this first transmission channel, second transmission channel and the 3rd transmission channel have at least two transmission channels to launch and keeps slot synchronization.
Above-mentioned administration module 520 is used for controlling the absolute value of error that time slot that the radio frames of these two each spontaneous emissions of transmission channel comprises leaves the identical or zero-time of the zero-time of antenna actinal surface less than a preset time error threshold.
Above-mentioned administration module 520 is used to control this first transmission channel, second transmission channel and the 3rd transmission channel and transmits to same terminal or different terminal simultaneously.
Technical scheme of the present invention is protected configurating downlink channel on the frequency band through up licensed band and FDD duplex in the FDD system, has improved the downstream transmission bandwidth of wireless access network, has improved the tenability of wireless access network to the up-downgoing non-symmetrical service.
Those skilled in the art should be understood that; Above-mentioned each module of the present invention or each step can realize that they can concentrate on the single calculation element with the general calculation device, perhaps are distributed on the network that a plurality of calculation element forms; Alternatively; They can realize with the executable program code of calculation element, thereby, can they be stored in the storage device and carry out by calculation element; Perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
Though the execution mode that the present invention disclosed as above, the execution mode that described content just adopts for the ease of understanding the present invention is not in order to limit the present invention.Technical staff under any the present invention in the technical field; Under the prerequisite of spirit that does not break away from the present invention and disclosed and scope; Can do any modification and variation what implement in form and on the details; But scope of patent protection of the present invention still must be as the criterion with the scope that appending claims was defined.
Claims (28)
1. method that increases the wireless access network downstream transmission bandwidth; It is characterized in that; Configuration first transmission channel on the downstream spectrum of the paired frequency spectrum of FDD (FDD); Configuration first receive path and second transmission channel on the uplink spectrum of the paired frequency spectrum of FDD, configuration the 3rd transmission channel on FDD duplex protection frequency band; This method comprises:
In a downlink radio frame of first transmission channel emission in the cycle; Said first receive path and second transmission channel use the uplink spectrum of the paired frequency spectrum of said FDD with time division way; Said first receive path takies the very first time interval of said wireless frame period; Said second transmission channel takies second time interval of said wireless frame period; And in the chronon interval in second time interval of said wireless frame period, said first transmission channel, second transmission channel and the 3rd transmission channel transmit simultaneously.
2. method according to claim 1 is characterized in that, said FDD duplex protection frequency band comprises:
Distribute to the middle duplex protection frequency band that does not belong to time division duplex (TDD) licensed band of the paired frequency band of uplink and downlink that the FDD system uses; Perhaps
Distribute to upstream band and the duplexing frequency band of protecting of the FDD up-downgoing that belongs to the TDD licensed band in the middle of the downstream bands that the FDD system uses.
3. method according to claim 2 is characterized in that:
The duplex protection frequency band that does not belong to the TDD licensed band in the middle of the paired frequency band of the uplink and downlink that the said FDD of distributing to system uses is included in the duplex protection frequency band in the middle of 790～862 megahertzes (MHz) frequency band of distributing to Long Term Evolution (LTE) FDD system;
The FDD up-downgoing duplex protection frequency band that belongs to the TDD licensed band in the middle of the upstream band that the said FDD of distributing to system uses and the downstream bands, the duplex that is included in the middle of 2500～2690MHz is protected frequency band.
4. method according to claim 1 is characterized in that:
Said second transmission channel and the 3rd transmission channel, be two at radio-frequency transmissions passage or be and penetrate passage independently physically taking place frequently of unified design physically.
5. method according to claim 4 is characterized in that:
Said second transmission channel and the 3rd transmission channel be two physically independently during the radio-frequency transmissions passage; Use separately independently power amplifier to realize being operated in the FDD upstream band respectively and protect the transmission channel on the frequency band with the FDD duplex, and the physical carrier of each spontaneous emission oneself;
Said second transmission channel and the 3rd transmission channel be one when the radio-frequency transmissions passage of unified design physically; Use same power amplifier to realize being operated in the transmission channel on FDD upstream band and the FDD duplex protection frequency band, and on FDD upstream band and FDD duplex protection frequency band, launch independently physical carrier respectively; Perhaps, use same power amplifier to realize being operated in the transmission channel on FDD upstream band and the duplexing protection of the FDD frequency band, and the signal that emission is modulated by same physical carrier on FDD upstream band and FDD duplex protection frequency band.
6. method according to claim 1 is characterized in that:
The modulation system of the signal of said second transmission channel emission, identical or different with the modulation system of the signal that receives on the FDD upstream band.
7. method according to claim 1 is characterized in that:
The modulation bandwidth of the signal that receives on the channel width of said second transmission channel and the FDD upstream band is identical or different.
8. method according to claim 1 is characterized in that:
The radio frames of said second transmission channel emission comprises:
A part of time slot of whole time slots that complete FDD downlink radio frame cycle is comprised;
Perhaps, descending time slot that complete TDD wireless frame period is comprised.
9. method according to claim 1 is characterized in that:
The radio frames of said the 3rd transmission channel emission comprises:
Whole time slots that complete FDD downlink radio frame cycle is comprised or a part of time slot wherein;
Perhaps, the whole descending time slots that comprised in complete TDD wireless frame period or a part of descending time slot wherein.
10. method according to claim 1 is characterized in that:
The said very first time, size interval and said second time interval was adjusted according to the professional degree of asymmetry of the uplink and downlink on the specific region of wireless access network service.
11. method according to claim 10 is characterized in that, the step that size interval and said second time interval of the said very first time is adjusted according to said degree of asymmetry comprises:
When the downlink service data in the sub-district equated with uplink business data or is in poised state, the time value that disposes said second time interval was zero;
When the downlink service data in the sub-district can not satisfy business demand greater than the downstream spectrum of uplink business data and FDD; Said second time interval is configured to non-vanishing time value, in said second time interval, uses FDD uplink spectrum and/or FDD duplex protection frequency band to be used for downlink.
12. method according to claim 10 is characterized in that, the professional degree of asymmetry of uplink and downlink on the specific region of said wireless access network service is judged according at least a in the following method:
(1) network side is added up the asymmetric ratio of up-downgoing of the current business that has inserted and/or the asymmetric ratio that frequency spectrum takies situation in real time;
(2) network side basis statistics is in the past predicted the non-symmetrical service degree of specific cell, with this foundation as initial configuration second time interval size.
13. method according to claim 1 is characterized in that, in the chronon interval in second time interval of said radio frames, the step that said first transmission channel, second transmission channel and the 3rd transmission channel transmit simultaneously comprises:
In said chronon interval, the signal on said first transmission channel, second transmission channel and the 3rd transmission channel is in emission state simultaneously.
14. method according to claim 13 is characterized in that:
Keep slot synchronization between the radio frames that has at least two transmission channels to launch in said first transmission channel, second transmission channel and the 3rd transmission channel.
15. method according to claim 14 is characterized in that, keeps the step of slot synchronization between said two transmission channels, comprising:
The time slot that comprises in the radio frames of said two each spontaneous emissions of transmission channel leaves the absolute value of error of the identical or zero-time of the zero-time of antenna actinal surface less than a preset time error threshold.
16. method according to claim 1 is characterized in that, the step that said first transmission channel, second transmission channel and the 3rd transmission channel transmit simultaneously comprises:
Said first transmission channel, second transmission channel and the 3rd transmission channel transmit to same terminal or different terminal simultaneously.
17. a system that increases the wireless access network downstream transmission bandwidth is characterized in that, comprises module and administration module are set, wherein:
The said module that is provided with; Be used for configuration first transmission channel on the downstream spectrum of the paired frequency spectrum of FDD (FDD); Configuration first receive path and second transmission channel on the uplink spectrum of the paired frequency spectrum of FDD, configuration the 3rd transmission channel on FDD duplex protection frequency band;
Said administration module is used to control said first receive path, first transmission channel, second transmission channel and the 3rd transmission channel according to working as follows:
In a downlink radio frame of first transmission channel emission in the cycle; Said first receive path and second transmission channel use the uplink spectrum of the paired frequency spectrum of said FDD with time division way; Said first receive path takies the very first time interval of said wireless frame period; Said second transmission channel takies second time interval of said wireless frame period; And in the chronon interval in second time interval of said wireless frame period, said first transmission channel, second transmission channel and the 3rd transmission channel transmit simultaneously.
18. system according to claim 17 is characterized in that, the said module that is provided with is used for said the 3rd transmission channel of configuration on the FDD duplex protection frequency band that is described below:
Distribute to the middle duplex protection frequency band that does not belong to time division duplex (TDD) licensed band of the paired frequency band of uplink and downlink that the FDD system uses; Perhaps
Distribute to upstream band and the duplexing frequency band of protecting of the FDD up-downgoing that belongs to the TDD licensed band in the middle of the downstream bands that the FDD system uses.
19. system according to claim 18 is characterized in that:
The said module that is provided with is used for said the 3rd transmission channel of configuration on the duplex protection frequency band that does not belong to the TDD licensed band in the middle of the paired frequency band of the uplink and downlink that the said FDD of distributing to system uses, and is included in said the 3rd transmission channel of configuration on the duplex protection frequency band in the middle of 790～862 megahertzes (MHz) frequency band of distributing to LTE FDD system;
The said module that is provided with is used for said the 3rd transmission channel of configuration on the FDD up-downgoing duplex protection frequency band that belongs to the TDD licensed band in the middle of upstream band that the said FDD of distributing to system uses and the downstream bands, is included on the duplex protection frequency band in the middle of 2500～2690MHz and disposes said the 3rd transmission channel.
20. system according to claim 17 is characterized in that:
Said module set said second transmission channel and the 3rd transmission channel of being provided with, be two at radio-frequency transmissions passage or be and penetrate passage independently physically taking place frequently of unified design physically.
21. system according to claim 20 is characterized in that:
Said be provided with set said second transmission channel of module and the 3rd transmission channel be two physically independently during the radio-frequency transmissions passage; Said administration module is used to control said second transmission channel and the 3rd transmission channel to be used separately independently power amplifier to realize being operated in the FDD upstream band respectively to protect the transmission channel on the frequency band with the FDD duplex, and the physical carrier of each spontaneous emission oneself;
Said be provided with set said second transmission channel of module and the 3rd transmission channel be one when the radio-frequency transmissions passage of unified design physically; Said administration module is used to control said second transmission channel and the 3rd transmission channel uses same power amplifier to realize being operated in the transmission channel on FDD upstream band and the FDD duplex protection frequency band, and on FDD upstream band and FDD duplex protection frequency band, launches independently physical carrier respectively; Perhaps; Said administration module is used to control said second transmission channel and the 3rd transmission channel uses same power amplifier to realize being operated in the transmission channel on FDD upstream band and the duplexing protection of the FDD frequency band, and the signal that emission is modulated by same physical carrier on FDD upstream band and FDD duplex protection frequency band.
22. system according to claim 17 is characterized in that:
The said modulation system that the signal of set said second transmission channel emission of module is set, identical or different with the modulation system of the signal that receives on the FDD upstream band;
The modulation bandwidth of the signal that receives on said channel width that set said second transmission channel of module is set and the FDD upstream band is identical or different;
The radio frames of said second transmission channel emission of said administration module control comprises:
A part of time slot of whole time slots that complete FDD downlink radio frame cycle is comprised;
Perhaps, the descending time slot that comprised of complete TDD downlink radio frame cycle.
23. system according to claim 17 is characterized in that:
The radio frames of said the 3rd transmission channel emission of said administration module control comprises:
Whole time slots that complete FDD downlink radio frame cycle is comprised or a part of time slot wherein;
Perhaps, the whole descending time slots that comprised in complete TDD wireless frame period or a part of time slot wherein.
24. system according to claim 17 is characterized in that:
Said administration module is controlled the said very first time interval that said first receive path takies radio frames; Reach said administration module and control the size that said second transmission channel takies said second time interval of radio frames, adjust according to the degree of asymmetry that the uplink and downlink on the specific region of wireless access network service are professional.
25. system according to claim 24 is characterized in that, said administration module is used to adopt following mode, and size interval to the said very first time and said second time interval is adjusted:
When the downlink service data in the sub-district equated with uplink business data or is in poised state, the time value that disposes said second time interval was zero;
When the downlink service data in the sub-district can not satisfy business demand greater than the downstream spectrum of uplink business data and FDD; Said second time interval is configured to non-vanishing time value, in said second time interval, uses FDD uplink spectrum and/or FDD duplex protection frequency band to be used for downlink.
26. system according to claim 24 is characterized in that, said administration module is used for according to the professional degree of asymmetry of uplink and downlink on the specific region of the said wireless access network service of at least a judgement of following method:
(1) network side is added up the asymmetric ratio of up-downgoing of the current business that has inserted and/or the asymmetric ratio that frequency spectrum takies situation in real time;
(2) network side basis statistics is in the past predicted the non-symmetrical service degree of specific cell, with this foundation as initial configuration second time interval size.
27. system according to claim 17 is characterized in that:
Said administration module is used in said chronon interval, and the signal of controlling on said first transmission channel, second transmission channel and the 3rd transmission channel is in emission state simultaneously;
Said administration module is used to control said first transmission channel, second transmission channel and the 3rd transmission channel and transmits to same terminal or different terminal simultaneously.
28. system according to claim 27 is characterized in that:
Said administration module is used for controlling between the radio frames that said first transmission channel, second transmission channel and the 3rd transmission channel have at least two transmission channels to launch and keeps slot synchronization;
Said administration module is used for controlling the absolute value of error that time slot that the radio frames of said two each spontaneous emissions of transmission channel comprises leaves the identical or zero-time of the zero-time of antenna actinal surface less than a preset time error threshold.
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| CN111835626B (en) * | 2019-04-23 | 2023-03-03 | 深圳长城开发科技股份有限公司 | LoRa communication method, loRa server gateway and readable storage medium |
| WO2023123346A1 (en) * | 2021-12-31 | 2023-07-06 | 华为技术有限公司 | Signal processing method and device, chip, and base station |
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