CN102281639A - Data transmission method - Google Patents

Data transmission method Download PDF

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Publication number
CN102281639A
CN102281639A CN 201110221244 CN201110221244A CN102281639A CN 102281639 A CN102281639 A CN 102281639A CN 201110221244 CN201110221244 CN 201110221244 CN 201110221244 A CN201110221244 A CN 201110221244A CN 102281639 A CN102281639 A CN 102281639A
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frequency band
terminal
frequency
channel
band
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CN102281639B (en
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刁心玺
张禹强
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ZTE Corp
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ZTE Corp
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Abstract

The invention discloses a wireless access network system, a terminal, a data transmission method and a method for scheduling the terminal. The wireless access network system comprises a data broadcasting subsystem, a frequency division duplex (FDD) subsystem and a time division duplex (TDD) subsystem. The data broadcasting subsystem comprises a first transmitting channel; the FDD subsystem comprises a second receiving channel and a second transmitting channel; and the TDD system comprises a third receiving channel and a third transmitting channel. Moreover, the first transmitting channel of the data broadcasting subsystem is configured to work on a first frequency band; the second transmitting channel of the FDD subsystem is configured to work on a second frequency band; and the third receiving channel and the third transmitting channel of the TDD subsystem are configured to work on a third frequency band, wherein the second frequency band is arranged between the first frequency band and the third frequency band as well as is adjacent to the first frequency band and the third frequency band. According to a technical scheme of the invention, a service efficiency of a frequency spectrum is improved by configuring a used frequency spectrum of a wireless access network system.

Description

Data transmission method
The present invention is: on September 4th, 2008, application number is: 200810215040.2, and denomination of invention is: the dividing an application of the patent of invention of " method of wireless access network system, terminal, data transmission method, dispatch terminal ".
Technical field
The present invention relates to the communications field, relate in particular to a kind of data transmission method.
Background technology
Third generation partner program (3rd Generation Partnership Project, abbreviate 3GPP as) at Long Term Evolution (the Long Term Evolution of its formulation, abbreviate LTE as) in the system standard, comprise following system: with time division duplex (Time Division Duplexing, abbreviate TDD as) system of mode work, with Frequency Division Duplexing (FDD) (Frequency Division Duplex, abbreviate FDD as) system of mode work, multimedia broadcast multi-broadcasting business system (Multi-cast and Broadcast Multimedia System abbreviates MBMS as) with the work of private downlink carrier mode.
At present, in the 3GPP system, disturbed condition according to adjacent channel, the feasibility that the TDD frequency spectrum of 1900-1920MHz, 2010-2025MHz, three frequency ranges of 2570-2620MHz is used for MBMS is analyzed, and analysis result is: terminal receives MBMS and is infeasible at 1920-1980MHz band transmission MBMS at the 1900-1920MHz frequency band simultaneously; Terminal receives MBMS and launches MBMS at 1920-1980MHz at the 1900-1910MHz frequency band simultaneously is feasible, but needs 10MHz protection bandwidth by way of compensation; Terminal is feasible at 2010-2025MHz frequency band reception MBMS with at 1920-1980MHz band transmission MBMS simultaneously.
In addition, 3GPP advises (the International Telecommunication Union of International Telecommunications Union, abbreviate ITU as) be the standard formulation that IMT-Advanced is carried out on the basis with 3GPP LTE TDD/FDD, the IMT-Advanced of ITU name is referred to as LTE-Advanced in 3GPP.The LTE-Advanced system is the transmission rate that reaches 1Gbps, need to use the bandwidth of 100MHz, in actual spectrum planning, the frequency bandwidth that accumulative total is distributed to the mobile communication system use has reached hundreds of million Hz, but, these frequency bands exist with discontinuous state, for example, in 3G (Third Generation) Moblie, extended frequency band 2500~2690MHz is divided into the FDD uplink band of 70MHz bandwidth, the FDD band downlink of 70MHz bandwidth and the TDD frequency range of 50MHz bandwidth, in order to obtain the transmission bandwidth of 100MHz, the IMT-Advanced system gets up to use with the frequency band merging or the gathering (aggregation) of several interruptions.
Fig. 1 a shows the schematic diagram of the spectrum aggregation method of prior art, shown in Fig. 1 (a), in order to improve transmission rate, the a plurality of frequency ranges of the comprehensive use of terminal are carried out the transmission of data, mainly assemble the use that realizes these a plurality of frequency bands at present, promptly use an independent carrier wave or a plurality of carrier wave to transmit data concurrently on each frequency band that uses at the same time by carrier wave.Particularly, each sub-district all provides a plurality of continuous carrier waves, and with one of them carrier wave is main carrier, system provides BCH on this main carrier, UpPCH, DwPCH and other common signal channels, and only provide Traffic Channel at other carrier waves (also becoming auxilliary carrier wave), be used for the transmission of system information broadcast and the access of terminal.Fig. 1 b shows the frame structure schematic diagram of 3 carrier wave TD-SCDMA systems, shown in Fig. 1 b, carrier wave 1 is a main carrier, carrier wave 2 and carrier wave 3 are auxilliary carrier wave, wherein, and after terminal inserts by main carrier, admit control module according to each carrier resource situation, the resource of unified distribution, the terminal admittance enters main carrier or auxilliary carrier wave carries out the transmitting-receiving of business datum, and the terminal on the auxilliary carrier wave need periodically be tuned to the main carrier receiving broadcasting information and carry out measurement of correlation.
In the collocation method of existing digital broadcasting frequency band, digit broadcasting system can take the frequency range (2010-2025MHz/1900-1920MHz) of tdd systems, when but terminal receives the MBMS signal at frequency range 1900-1920MHz, the emission meeting of its up transmission channel on 1920MHz~1980MHz produces interference to the reception of MBMS, and, merge and use a plurality of discontinuous frequency bands can cause the terminal complexity height, for example increase the passage number and the power loss of terminal, therefore, in order to make terminal have rational complexity and high spectrum efficiency, need use the sequential frequency band of a big bandwidth as far as possible, but, the frequency spectrum of continuous big bandwidth always is difficult to obtain, and in order to improve the service efficiency of frequency spectrum, a continuous big bandwidth frequency band need be shared in the radio-frequency channel that belongs to different operators.The multi-carrier scheme that TD-SCDMA adopts is that the merging of the adjacent spectrum of carrier on same sub-district or the same WAP (wireless access point) is used, and the method for the shared continuous big bandwidth frequency band of different operators does not provide concrete solution in the existing technical scheme.
Summary of the invention
Consider that a kind of technology of the needs that exist in the correlation technique solves different operators and shares the problem of a continuous big bandwidth frequency band and propose the present invention, for this reason, main purpose of the present invention is to provide the method for a kind of wireless access network system, terminal, data transmission method and dispatch terminal, to address the above problem.
According to an aspect of the present invention, provide a kind of wireless access network system.
Wireless access network system according to the present invention comprises: comprise data broadcasting subsystem, FDD subsystem and TDD subsystem, wherein, the data broadcasting subsystem comprises first transmission channel, the FDD subsystem comprises second receive path and second transmission channel, the TDD subsystem comprises the 3rd receive path and the 3rd transmission channel, wherein, first transmission channel of data broadcasting subsystem is configured to work on first frequency band; Second transmission channel of FDD subsystem is configured to work on second frequency band, the 3rd transmission channel of TDD subsystem and the 3rd receive path are configured to work on the 3rd frequency band, wherein, second frequency band is between first frequency band and the 3rd frequency band, and is and adjacent with the 3rd frequency band with first frequency band.
According to an aspect of the present invention, provide a kind of terminal.
Terminal according to the present invention comprises first receive path, second receive path, transmission channel, further, this terminal also comprises passage control module and channel capacity reporting module, wherein, the channel capacity reporting module is used for by the channel parameters of transmission channel to the network side reporting terminal; The passage control module is used for the mode of operation that issues according to network side or according to the integrated mode of the business setting terminal radio frequency passage of the resource situation of terminal and terminal request.
According to another aspect of the present invention, provide a kind of data transmission method, this method is used for terminal and is using transmission or reception data on the frequency band.
Data transmission method according to the present invention comprises: at least one receive path of terminal receives sub-district synchronizing signal, scheduling controlling order on the ownership frequency band of terminal; The transmission channel of terminal is being used transmission service signal and channel detection signal on the frequency band.
According to another aspect of the present invention, provide a kind of data transmission method, this method first terminal and second terminal are at the non-attribution frequency band or use and carry out direct communication on the frequency band.
Data transmission method according to the present invention comprises: synchronous by between the WAP (wireless access point) of the Serving cell of its ownership frequency band and this terminal of first terminal and second terminal, realize keeping synchronous between first terminal and second terminal that participates in communicate by letter, wherein, first terminal and second terminal receive the control signal from the Serving cell WAP (wireless access point) on its ownership frequency band, and at its non-attribution frequency band or use send channel detectable signal on the frequency band.
According to an aspect of the present invention, provide a kind of method of dispatch terminal, this method is used for dispatch terminal between different frequency bands.
Method according to dispatch terminal of the present invention comprises: network side is distributed to same terminal in time serially with the frequency spectrum resource on first frequency band and second frequency band and is used; In very first time interval, network side is the resource on terminal distribution first frequency band; In second time interval, network side is the resource on terminal distribution second frequency band; Wherein, the very first time interval and second time interval were included within the duration of a wireless frame period.
By above-mentioned at least one technical scheme of the present invention, be configured by use frequency spectrum wireless access network, solved the problem that different operators can not be shared a continuous big bandwidth frequency band, improved the frequency spectrum service efficiency.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 a is the spectrum aggregation method schematic diagram according to correlation technique;
Fig. 1 b is the frame structure schematic diagram according to 3 carrier wave TD-SCDMA systems of correlation technique;
Fig. 2 a is the structured flowchart according to the wireless access network system of the embodiment of the invention;
Fig. 2 b is the concrete structure block diagram according to the wireless access network system of the embodiment of the invention;
Fig. 3 a is the structural representation one according to the frequency spectrum configuration of the wireless access network system shown in Fig. 2 a;
Fig. 3 b is the structural representation two according to the frequency spectrum configuration of the wireless access network system shown in Fig. 2 a;
Fig. 4 a is the concrete structure schematic diagram according to the frequency spectrum configuration of the wireless access network system shown in Fig. 3 a;
Fig. 4 b is the concrete structure schematic diagram according to the frequency spectrum configuration of the wireless access network system shown in Fig. 3 b;
Fig. 5 is the structural framing figure according to the networking mode of the distributed heterogeneous wireless access network of the embodiment of the invention and radio-frequency channel configuration mode;
Fig. 6 is the terminal structure frame diagram according to the embodiment of the invention;
Fig. 7 is the concrete structure frame diagram according to the terminal of the embodiment of the invention;
Fig. 8 is the instantiation schematic diagram according to the method for the dispatch terminal of the embodiment of the invention;
Fig. 9 a is the method schematic diagram according to the multiband dispatch terminal of a target band of the embodiment of the invention;
Fig. 9 b is the method schematic diagram according to the multiband dispatch terminal of two target band of the embodiment of the invention;
Figure 10 is the method schematic diagram that has the multiband dispatch terminal between two target band that resource occupation adjusts in proper order according to the embodiment of the invention;
Figure 11 is according to the method schematic diagram of dispatch terminal between two non-paired frequency bands of the figure embodiment of the invention.
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing.
System embodiment
According to the embodiment of the invention, provide a kind of wireless access network system.
Fig. 2 a is the structured flowchart according to the wireless access network system of the embodiment of the invention, shown in Fig. 2 a, wireless access network system according to the embodiment of the invention comprises data broadcasting subsystem 202, FDD subsystem 204 and TDD subsystem 206, wherein, the data broadcasting subsystem comprises the first transmission channel 202T, the FDD subsystem comprises the second receive path 204R and the second transmission channel 204T, the TDD subsystem comprises the 3rd receive path 206R and the 3rd transmission channel 206T, wherein, the first transmission channel 202T of data broadcasting subsystem is configured to work on first frequency band; The second transmission channel 204T of FDD subsystem is configured to work on second frequency band, the 3rd transmission channel 206T and the 3rd receive path 206R of TDD subsystem are configured to work on the 3rd frequency band, wherein, second frequency band is between first frequency band and the 3rd frequency band, and is and adjacent with described the 3rd frequency band with described first frequency band.Above-mentioned digital broadcasting subsystem 202, FDD subsystem 204 and TDD subsystem 206 can be to belong to same operator, also can be the operators that belongs to different.
The technical scheme that provides by the embodiment of the invention is configured the use frequency spectrum of wireless access network, and a continuous big bandwidth frequency band can be shared by a plurality of operators, has improved the frequency spectrum service efficiency.
In addition, the second receive path 204R of FDD subsystem 204 is configured to work on the 4th frequency band, and wherein, the highest frequency of the 4th frequency band is lower than any the low-limit frequency in first frequency band, second frequency band, the 3rd frequency band.
Preferably, above-mentioned wireless access network system can further include frequency spectrum corporate management unit 208, Fig. 2 b shows the concrete structure block diagram according to the wireless access network system of the embodiment of the invention, shown in Fig. 2 b, this frequency spectrum corporate management module 208 is connected to TDD subsystem 206, FDD subsystem 204 and data broadcasting subsystem 202, wherein, this frequency spectrum corporate management module 208 comprises frequency spectrum logging modle, access control module and multiband scheduler module.
Wherein, the function of each module is as described below.
The frequency spectrum logging modle is used for the frequency spectrum operating position of the radio-frequency channel on each frequency band of real time record;
The access control module, the frequency spectrum operating position of the radio-frequency channel on each frequency band that is used for providing, the access frequency band of designated terminal according to the frequency spectrum logging modle;
The multiband scheduler module is used for determining use location and the service time of terminal to different frequency bands according to the frequency spectrum idle condition on the different frequency bands, sends dispatch command to terminal.
Wherein, frequency spectrum corporate management unit further comprises dynamic adjusting module, this dynamic adjusting module is used for centre frequency and the bandwidth of operation of the first transmission channel 202T, the second transmission channel 204T, the 3rd transmission channel 206T are adjusted, and dynamically adjusting module can specifically comprise:
First adjusts submodule, is used for according to digital broadcasting subsystem 202 and 204 required bandwidth of loaded service of FDD subsystem centre frequency and the bandwidth of operation of the first transmission channel 202T and the second transmission channel 204T dynamically being adjusted;
Second adjusts submodule, is used for according to FDD subsystem 204 and 206 required bandwidth of loaded service of TDD subsystem centre frequency and the bandwidth of operation of the second transmission channel 204T and the 3rd transmission channel 206T dynamically being adjusted.
Particularly, Fig. 3 a and Fig. 3 b show the frequency spectrum configuration structure schematic diagram of the heterogeneous radio access networks system shown in Fig. 2 a, below these two kinds of structures are described.
Structure one, as Fig. 3 a, the first transmission channel 202T of data broadcasting subsystem 202 is configured to work on first frequency band 301; The second transmission channel 204T of FDD subsystem 204 is configured to work on second frequency band 302, the 3rd transmission channel 206T of TDD subsystem 206 and the 3rd receive path 206R are configured to work on the 3rd frequency band 303, wherein, second frequency band 302 is positioned in the middle of first frequency band 301 and the 3rd frequency band 303, first frequency band 301 is positioned at the right side of second frequency band 302, and the 3rd frequency band 303 is positioned at the left side of second frequency band 302.Particularly, first frequency band 301, second frequency band 302 and the 3rd frequency band 303 can be according to the neighbouring relations shown in Fig. 4 a, be arranged in 698MHz~862MHz scope, the receive path 204R that is comprised as FDD subsystem 204 is operated on the 4th frequency band 304, wherein, the frequency range of the 4th frequency band 304 is 450MHz~470MHz.
Structure two, as Fig. 3 b, the first transmission channel 202T of data broadcasting subsystem 202 is configured to work on first frequency band 301; The second transmission channel 204T of FDD subsystem 204 is configured to work on second frequency band 302, the 3rd transmission channel 206T of TDD subsystem 206 and the 3rd receive path 206R are configured to work on the 3rd frequency band 303, wherein, second frequency band 302 is positioned in the middle of first frequency band 301 and the 3rd frequency band 303, first frequency band 301 is positioned at the left side of second frequency band 302, and the 3rd frequency band 303 is positioned at the right side of second frequency band 302.Particularly, first frequency band 301, second frequency band 302 and the 3rd frequency band 303 are according to the neighbouring relations shown in Fig. 4 b, be arranged in 698MHz~862MHz scope, the receive path 204 that is comprised as 3GPP LTE/LTE-A FDD subsystem 206 is operated on the 4th frequency band 304, and the frequency range of the 4th frequency band is 450MHz~470MHz.
In addition, the receive path 204R that FDD subsystem 204 comprises can be configured to work on the 4th frequency band, and the highest frequency of the 4th frequency band is lower than the low-limit frequency of above-mentioned first frequency band 301, second frequency band 302, the 3rd frequency band 303.
Fig. 5 shows the networking mode of distributed heterogeneous wireless access network and the structural framing figure of radio-frequency channel configuration mode, as shown in Figure 5, use the MBMS subsystem 202 of private downlink carrier, the form of the distributed base station of FDD subsystem 204 and TDD subsystem 206 is carried out networking, in this distributed base station, frequency spectrum corporate management unit 208 is by optical fiber and remote radio unit (RRU) 501,502a, 502b, 502c, 502d realizes communication and Synchronization Control, wherein, remote radio unit (RRU) 501 comprises the reception/transmission channel 204R/T in the FDD subsystem 204, and the transmission channel 202T in the MBMS subsystem 202 of use private downlink carrier, remote radio unit (RRU) 502 comprises the reception/transmission channel 206R/T in the TDD subsystem 206, under the control of frequency spectrum corporate management unit 208, the radio frames of remote radio unit (RRU) 501 and 502 emissions keeps synchronous in time, wherein, the radio-frequency channel of MBMS subsystem 202 and the identical antenna of the common use in the radio-frequency channel of FDD subsystem 204.
Frequency band in the wireless access network system can be divided into ownership frequency band and non-attribution frequency band, below ownership frequency band and non-attribution frequency band be described.
The ownership frequency band: in relatively-stationary mode is the ownership frequency band that the frequency band of radio-frequency channel configuration is referred to as the radio-frequency channel, for example, a plurality of receptions/transmission channel the 206R/T of a plurality of TDD subsystems 206 is configured in one section continuous up-downgoing transmission frequency spectra that is used for its frequency band in relatively-stationary mode, the transmission channel 202T of a plurality of FDD subsystems 204 or a plurality of FDD or receive path 204R are configured in one section with its frequency band in relatively-stationary mode and continuous are used for descending or the up-downgoing transmission frequency spectra, and the data broadcasting subsystem 202 of a plurality of use private downlink carriers or transmission channel 202T are configured in one section continuous frequency spectrum that is used for downlink transfer with its frequency band in relatively-stationary mode.The radio-frequency channel provides as lower channel to terminal on its ownership frequency band: CBCH, uplink synchronous channel, descending synchronous signal channel and intercarrier scheduling controlling channel.And the ownership frequency band of the radio-frequency channel of each subsystem is the licensed band of this subsystem.
The non-attribution frequency band: outside the ownership frequency band that the radio-frequency channel is used, and be called the non-attribution frequency band of radio-frequency channel with the frequency band that the ownership frequency band constitutes sequential frequency band, the radio-frequency channel is except can dynamically using the ownership frequency band, can also dynamically use the non-attribution frequency band, the radio-frequency channel can provide traffic channel information, measured channel information to scheduled terminals on its non-attribution frequency band.Wherein, the non-attribution frequency band can comprise one of at least following: non-paired frequency band, the permission that paired frequency band, the permission that permission uses for the FDD system uses for the TDD system given partial-band in the frequency spectrum of terrestrial broadcast system, exempted from the partial-band in the licensed band.
In above-mentioned heterogeneous radio access networks system, want the retention time synchronous between the radio frames of each radio-frequency transmissions passage emission, for example, can keep synchronous in time by following dual mode:
Mode one: the original position of the radio frames of different radio frequency passage emission is alignd when leaving the antenna actinal surface in time, the time here go up original position that alignment is meant radio frames leave the antenna actinal surface time difference less than first error amount, the value of this first error amount time slots width in the radio frames, typically, this first error amount is less than the Cyclic Prefix of OFDM symbol.
Mode two: the original position of the radio frames of different radio frequency passage emission differs k time slot width in time when leaving the antenna actinal surface, k gets natural number, the span of K is 1~20, and the time slot here is meant the time slot that constitutes radio frames, and typical value is 0.4 millisecond.
Working method to above-mentioned wireless access network system is elaborated below.
In reception/transmission channel 206R/T that TDD subsystem 206 comprises, reception/transmission channel 204R/T that FDD subsystem 204 comprises, transmission channel 202T that data broadcasting subsystem 202 comprises, there is the part radio-frequency channel can dynamically change its centre frequency and bandwidth, for example, in a radio frames, in 5 milliseconds or 10 milliseconds, the radio-frequency channel can repeatedly change its center frequency point and bandwidth, and wireless access network system is included in the radio-frequency channel of working on the radio-frequency channel of exempting to work on the licensed band and/or the non-attribution frequency band.
Frequency spectrum in the frequency spectrum corporate management unit 208 takies logging modle and takies situation, data release conditions by the frequency spectrum of collecting radio-frequency channel on each frequency band, each frequency band in real time, construct frequency spectrum and take figure, and in real time this frequency spectrum is taken figure and upgrade, the access control module takies the idle condition of each frequency band that embodies on the figure according to frequency spectrum, specify the frequency band that inserts for terminal, the multiband scheduler module takies the free time amount and the idle frequency spectrum position of each frequency band of figure embodiment according to frequency spectrum, send to dispatch command to terminal.
In addition, the different frequency bands that above-mentioned access control module is used wireless access network system falls to sort and handles, a kind of implementation method that should fall to sort is: the frequency band that system is used sorts according to centre frequency order from low to high, band system band is divided into a plurality of sub-bands, and be numbered for each sub-band, give a natural number from small to large as this frequency band numbering of order usefulness on time slot is arranged, the access control module is arranging terminal to certain frequency band, it can be the frequency band on the paired frequency spectrum, frequency band on also can the paired frequency spectrum of right and wrong, on the Time Slot Occupancy of radio frames the time, on the radio frames on the frequency band of odd-numbered, according to time-gap number sequence arrangement Traffic Channel from small to large; On the radio frames on the frequency band of even-numbered, according to time-gap number sequence arrangement Traffic Channel from big to small.
The transmission channel 204T that frequency spectrum corporate management unit 208 can comprise FDD subsystem 204, centre frequency and the bandwidth of operation of the transmission channel 202T that data broadcasting subsystem 202 comprises are controlled, to realize two dynamic frequency spectrum deployment between the subsystem, generally, at digital broadcasting service in the less time period, the transmission channel 204T that the frequency spectrum 303 of data broadcasting subsystem 202 uses is dynamically distributed to FDD subsystem 204 used, support the ability of downlink business with the transmission channel 204T that improves FDD subsystem 204, particularly, shown in Fig. 3 a, ratio between downlink bandwidth that can be by adjusting FDD subsystem 204 and the bandwidth of the MBMS subsystem 202 of employing private downlink carrier, centre frequency and bandwidth of operation to the MBMS subsystem 202 of FDD subsystem 204 and private downlink carrier are controlled, for example, in the time period that broadcast traffic descends, with the position of separation 2 to frequency band 303 1 side shiftings, in time period that broadcast traffic rises with the position of separation 1 to frequency band 302 1 side shiftings, the partial frequency spectrum of the frequency band 303 dynamically used is returned to data broadcasting subsystem 202 uses.
Carry out the multiband scheduling between the frequency band 301 that the frequency band 302 that 208 pairs of FDD subsystems in frequency spectrum corporate management unit 204 use, TDD subsystem 206 use, under the prerequisite of the permission to use mode that does not change frequency band 302 and frequency band 301, allow the dynamically Traffic Channel on service band 302 and the frequency band 301 of terminal.This multiband scheduling controlling of 202 pairs of terminals of data broadcasting subsystem has two kinds of implementations: the frequency band 302 by FDD subsystem 204 issues dispatch command; Frequency band 301 by the TDD system issues dispatch command.
Device embodiment
According to the embodiment of the invention, provide a kind of terminal.
Fig. 6 is the terminal structure block diagram according to the embodiment of the invention, as shown in Figure 6, terminal according to the embodiment of the invention comprises first receive path 602, second receive path 604, transmission channel 606, and wherein, this terminal also comprises channel capacity reporting module 608 and passage control module 610.
Channel capacity reporting module 608 is used for by the channel parameters of transmission channel to the network side reporting terminal, wherein, channel parameters can comprise following one of at least: the covering power of each passage of the receive path number of terminal, the transmission channel number of terminal, terminal, wherein, covering power comprise following one of at least: the position of the centre frequency of passage, the scheduling bandwidth of passage.
Passage control module 610 is used for the mode of operation that issues according to network side or according to the integrated mode of the described terminal radio frequency passage of business setting of the resource situation of described terminal and described terminal request.
Wherein, the integrated mode of above-mentioned terminal radio frequency passage can comprise one of following:
The first radio-frequency channel integrated mode, be used for first receive path 602 and second receive path 604 are set to respectively work on the downstream bands of the downstream bands of TDD system and FDD system, and transmission channel 606 is set to work on the upstream band of the upstream band of FDD system or TDD.
The second radio-frequency channel integrated mode, be used for first receive path 602 and second receive path 604 are set to work on the frequency band of the downstream bands of the downstream bands of TDD system or FDD system or digit broadcasting system simultaneously with identical centre frequency and bandwidth, or first receive path 602 and second receive path 604 are set to switch synchronously between the frequency band of the downstream bands of the downstream bands of TDD system and FDD system or digit broadcasting system.
The 3rd radio frequency combination of channels pattern; be used for first receive path 602 and/or second receive path 604 are set to carry out saltus step between its ownership frequency band and non-attribution frequency band; and transmission channel 606 is configured such that with ownership frequency band or non-attribution frequency band receives and/or send data; wherein, ownership frequency band and non-attribution frequency band are the frequency bands on two existence protections non-paired frequency spectrum at interval.
Further, passage control module 610 can comprise five passage control submodules, below these five passage control submodules is described.
First passage control submodule, one of them that is used for first receive path 602 and second receive path 604 is set to work on the downstream bands of FDD system, another is worked on the frequency band of digit broadcasting system, and transmission channel 606 is set to work on the upstream band of FDD system.
Second channel control submodule, one of them that is used for first receive path 602 and second receive path 604 is set to work on the frequency band of digit broadcasting system, another is worked on the frequency band of TDD system, and transmission channel 606 is set to work on the upstream band of TDD system.
Third channel control submodule, be used for first receive path 602 and second receive path 604 are set to respectively work on the downstream bands of the frequency band of TDD system and FDD system, and transmission channel 606 is set to work on the frequency band of the upstream band of FDD system or TDD.
Four-way control submodule, be used for first receive path 602 and second receive path 604 are set to work on the frequency band of the downstream bands of the frequency band of TDD system or FDD system or digit broadcasting system simultaneously with identical centre frequency and bandwidth, and/or first receive path 602 and second receive path 604 are set to switch synchronously between the frequency band of the downstream bands of the frequency band of TDD system or FDD system or digit broadcasting system.
Five-way road control submodule; be used for first receive path 602 and/or second receive path 604 are set to carry out saltus step between its ownership frequency band and non-attribution frequency band; and transmission channel 606 is configured such that with ownership frequency band and/or non-attribution frequency band receives and/or send data; wherein, ownership frequency band and non-attribution frequency band are the frequency bands on two existence protections non-paired frequency spectrum at interval.
First receive path 602 of terminal and/or second receive path 604 under the control of channel control unit, receive in the mode of half-duplex or full duplex on different frequency bands with transmission channel 606 and launch.
Method embodiment one
According to embodiments of the invention, a kind of data transmission method is provided, be used for terminal and using transmission or reception data on the frequency band, it is characterized in that: at least one receive path of terminal receives sub-district synchronizing signal, scheduling controlling order on the ownership frequency band of terminal; The transmission channel of terminal is being used transmission service signal and channel detection signal on the frequency band.
Data transmission method by the embodiment of the invention provides under the situation of same terminal radio-frequency channel quantity, can significantly improve the frequency spectrum service efficiency.
Wherein, ownership frequency band and use frequency band and be two and have the frequency band on the protection non-paired frequency spectrum at interval, wherein, in the radio frames on the ownership frequency band on/there is overlapping in descending time slot with following/ascending time slot in the radio frames of using on the frequency band on time of occurrence.
Particularly, up/the descending time slot of ownership on the frequency band comprises existing on the time of occurrence to overlap with descending/ascending time slot of using on the frequency band: at the ownership frequency band with use in the time interval that the ascending time slot of the radio frames on the frequency band in the frequency band occurs, have at least a descending time slot to occur on another frequency band; Perhaps, at the ownership frequency band with use in the time interval that the descending time slot of the radio frames on the frequency band in the frequency band occurs, on another frequency band, have at least an ascending time slot to occur.
Preferably, the signal reception of at least one receive path of terminal on the ownership frequency band of terminal carried out in the mode of half-duplex or full duplex with the signal emission that the transmission channel of terminal is being used on the frequency band.
In addition, the descending time slot of at least one receive path of terminal on the ownership frequency band of terminal receives in the control signal, and the transmission channel of terminal is at the ascending time slot transmitting channel detectable signal of using on the frequency band.
Method embodiment two
According to embodiments of the invention, a kind of data transmission method also is provided, be used for first terminal and second terminal at the non-attribution frequency band or use and carry out direct communication on the frequency band, wherein, synchronous by between the WAP (wireless access point) of the Serving cell of its ownership frequency band and this terminal of first terminal and described second terminal, realize keeping synchronous between described first terminal and second terminal that participates in communicate by letter, wherein, first terminal and second terminal receive the control signal from the Serving cell WAP (wireless access point) on its ownership frequency band, and at its non-attribution frequency band or use send channel detectable signal on the frequency band.
Data transmission method by the embodiment of the invention provides under the situation of same terminal radio-frequency channel quantity, can significantly improve the frequency spectrum service efficiency.
Can describe with reference to terminal shown in Figure 6 data transmission method below the embodiment of the invention.
Particularly, first terminal and second terminal are specially at its non-attribution frequency band or the operation of using send channel detectable signal on the frequency band: the transmission channel of first terminal/second terminal is the transmitting channel detectable signal on the frequency band that receive path covered of second terminal/first terminal of direct communication with it.
Particularly, first terminal and second terminal all receive the sub-district synchronizing signal on same ownership frequency band, and first terminal and second terminal all by with its ownership frequency band on synchronizing signal two terminal rooms of synchronous realization synchronously.
The operation of last send channel detectable signal is specially: the transmission channel of first terminal is at the non-attribution frequency band of this terminal or use transmitting channel detectable signal on the frequency band.
Wherein, first terminal sends business datum and/or channel detection signal on predetermined band and the official hour in the multiband scheduling controlling order that its ownership issues on frequency band, the receive path of second terminal then receives business datum and/or the channel detection signal that first terminal sends on frequency band that the transmission channel with first terminal uses and time slot.
In implementation process, can utilize the transmission channel 606 of channel capacity reporting module shown in Figure 6 608 by terminal to the radio-frequency channel of network side reporting terminal parameter, and utilize passage control module 610 to come centre frequency, the bandwidth of the radio-frequency channel of configurating terminal according to the mode of operation of terminal.The mode of operation of terminal is disposed by the business of network side according to its available resource situation and terminal request, and by network side the mode of operation information that terminal needs is handed down to terminal by air interface.
Wherein, first receive path, 602, the second receive paths 604 of terminal, transmission channel 606 repeatedly changes its centre frequency and bandwidth in a radio frames under the control of passage control module 610, to realize the multiband scheduling to terminal.
Five kinds of modes to terminal are elaborated below.
Mode one: terminal carries out simultaneously that digital broadcasting receives and communicating by letter with FDD mode and network.Under this mode of operation, first receive path 602 of terminal or second receive path 604 work on the downstream bands 302 of FDD, simultaneously, second receive path 604 or first receive path 602 work on the digital broadcasting frequency band 303, transmission channel 606 is operated on the uplink spectrum of FDD, promptly is operated on the frequency band 304.Owing to be operated between first receive path 602 on the digital broadcasting frequency band or second receive path 604 and the transmission channel 606 and exist isolate bands, can between passage, not produce serious transmitting-receiving interference.This mode can realize that also terminal carrying out single-point communicating by letter to single-point with FDD mode and network when the digital broadcasting frequency band receives data download.
Mode two: terminal carries out simultaneously that digital broadcasting receives and communicating by letter with TDD mode and network, under this mode of operation, first receive path 602 or second receive path 604 of terminal work on the digital broadcasting frequency band 303, simultaneously, second receive path or first receive path work on the TDD frequency band 301, transmission channel 606 is operated on the uplink spectrum of TDD, owing to be operated between first receive path 602 on the digital broadcasting frequency band or second receive path 604 and the transmission channel 606 and exist frequency band 302, can between passage, not produce serious transmitting-receiving interference as isolate bands; This mode can realize that also terminal carrying out single-point communicating by letter to single-point with TDD mode and network when the digital broadcasting frequency band receives data download.
Mode three: terminal receives data from network simultaneously on two non-conterminous frequency bands, concrete grammar is: terminal uses second receive path 604 and first receive path 602 to work in respectively on TDD frequency band 301 and the FDD downstream bands 302 simultaneously, obtain the data that network issues from these two frequency bands, further, terminal uses transmission channel 606 on frequency band 304, perhaps sends data to network on frequency band 304.
Mode four: multiband scheduling in the heterogeneous radio access networks.First receive path 602 of terminal is operated on frequency band 302 or frequency band 303 or the frequency band 301 with identical centre frequency and bandwidth simultaneously with second receive path 604.And, first receive path 602 and second receive path 604 synchronously switch between frequency band 302, frequency band 303, frequency band 301, realization is with space diversity or the spatial reuse of mode on frequency band 302, frequency band 303, frequency band 301 of time-division, to improve the spectrum efficiency of terminal received signal.When carrying out the multiband scheduling, first receive path 602 and/or second receive path 604 turn back to periodically on its ownership frequency band and receive control data or Cell Broadcast CB data.
Mode five: the multiband scheduling between heterogeneous radio access networks and other system.The centre frequency of (1) first receive path 602 and/or second receive path 604 is carried out saltus step between the frequency band outside the frequency band that its ownership frequency band and heterogeneous radio access networks shown in Figure 3 have, use the frequency band reception data of using; The centre frequency of (2) first receive paths 602 and/or second receive path 604 is carried out saltus step between the frequency band outside the frequency band that its ownership frequency band and heterogeneous radio access networks shown in Figure 3 have, and transmission channel 606 uses the frequency band of using to send data, realizes the communication of terminal to terminal on the non-attribution frequency band.
Wherein, radio-frequency channel reporting parameters module 608 reports its channel capacity to network side, comprises one or more of following data: the receive path number that can work alone, passage number that can independent transmission, the covering power of each passage; The covering power of passage further comprises: the position of the centre frequency of passage, the adjustable-width of passage.
Passage control module 610 is come the centre frequency and the bandwidth chahnel of control channel according to the different working modes of terminal.
Method embodiment three
According to embodiments of the invention, a kind of method of dispatch terminal is provided, be used for dispatch terminal between different frequency bands.
Method according to the dispatch terminal of the embodiment of the invention comprises: network side is distributed to same terminal in time serially with the frequency spectrum resource on first frequency band and second frequency band and is used; In very first time interval, network side is the resource on terminal distribution first frequency band; In second time interval, network side is the resource on terminal distribution second frequency band; Wherein, the very first time interval and second time interval were included within the duration of a wireless frame period.
The method of the dispatch terminal that provides by the embodiment of the invention can effectively be utilized the idle time slot on the different frequency bands, can significantly improve the frequency spectrum service efficiency.
Wherein, exist between first frequency band and second frequency band at interval, and first frequency band and second frequency band comprise one of following: two frequency bands that have TDD systems at interval; Two upstream or downstream frequency bands that have FDD system at interval; Two frequency bands that form by the frequency band merging of the up or downstream bands of FDD system and the TDD system that is adjacent; One is that the up or downstream bands of FDD system and the frequency band of the TDD system that is adjacent merge the frequency band that forms, and one is the frequency band of TDD system.
Wherein, network side is that the operation of the resource on terminal distribution first frequency band or second frequency band is specially: network side is the idle frequency spectrum resource on terminal distribution first frequency band and second frequency band.
Wherein, network side is that the operation of the idle frequency spectrum resource on terminal distribution first frequency band and second frequency band comprises one of following: in very first time interval, to distribute to terminal as the part or all of downlink or uplink idle frequency spectrum in the frequency band of the TDD system of first frequency band uses, in second time interval thereafter, will distribute to terminal as the part or all of downlink or uplink idle frequency spectrum in the another one frequency band of the TDD system of second frequency band and use; Perhaps, in very first time interval, to distribute to terminal as the part or all of downlink or uplink idle frequency spectrum in the frequency band of the TDD system of first frequency band uses, in second time interval thereafter, will distribute to terminal as the part or all of downlink or uplink idle frequency spectrum in the frequency band of the FDD system of second frequency band and use; Perhaps, in very first time interval, to distribute to terminal as the part or all of downlink or uplink idle frequency spectrum in the frequency band of the TDD system of first frequency band uses, in second time interval thereafter, will distribute to terminal as the part or all of downlink or uplink idle frequency spectrum in the frequency band of the FDD system of second frequency band and the adjacent with it TDD band system band and use.
In addition, the ownership frequency band of wireless access network by terminal sends the scheduling of resource instruction to terminal, and wherein, scheduling of resource is designated as the width information of frequency spectrum of terminal distribution and the time slot position information of frequency spectrum.
Preferably, the duration of a wireless frame period is the integral multiple of 5 milliseconds or 5 milliseconds.
According to the method for dispatch terminal between a plurality of frequency bands of the embodiment of the invention, be applicable to the communication system that the wireless access network that has a plurality of radio-frequency channels and a plurality of frequency bands and multichannel terminal are formed.The multiband dispatching method that the embodiment of the invention provides, both be applicable to that the mode with shown in Figure 3 that multichannel terminal that heterogeneous radio access networks that Fig. 2 provides and Fig. 4 provide constitutes disposed the system of its radio-frequency channel, also be applicable to the multichannel terminal formation shown in the heterogeneous radio access networks shown in Fig. 2 and Fig. 6 on a plurality of discrete non-paired frequency bands to the scheduling of terminal.
In the process of accessing terminal to network or after accessing terminal to network, the access control module of network side belongs to frequency band or is referred to as resident frequency band for one of the terminal assignments that request inserts, this ownership frequency band can be the non-paired frequency band that a TDD system uses, it also can be the paired frequency band that the FDD system uses, network side provides as lower channel to terminal by the ownership frequency band of terminal: CBCH, uplink synchronous channel, scheduling controlling channel between descending synchronous signal channel and frequency band, on other non-attribution frequency band (or being referred to as the non-attribution frequency band), only provide Traffic Channel to scheduled terminals, measured channel.The non-attribution frequency band that is scheduled to the actual use of terminal is referred to as target band, and target band also comprises the ownership frequency band of terminal.
Wherein, target band can be a frequency band, also can be a plurality of frequency bands that used successively in time.Particularly, target band can be one or more combination of following frequency band: the idle frequency band in the frequency spectrum of ground TV broadcast system is given in the downlink dedicated carrier wave place frequency band that the frequency band of the non-paired frequency spectrum that the frequency band in the paired frequency spectrum that the FDD system uses, TDD system use, medium multicast and broadcast use, frequency band, the permission of exempting from the licensed band.
The composition of terminal 503a/503b shown in Figure 5 as shown in Figure 7, the first terminal 503a and the second terminal 503b comprise respectively: 702, one second receive paths 703 of 701, one first receive paths of a baseband processing unit, 704, one antenna elements 707 of a transmission channel.A baseband processing unit 701 comprises that 704, one channel capacities of a channel control unit report unit 705.
Below with reference to Fig. 3, Fig. 5 and Fig. 7 are described in detail to the another kind of implementation method that the second terminal 503b directly sends high data rate the first terminal 503a.
(1) in very first time interval, the first terminal 503a is to the last Cell searchings and synchronously finished of the frequency band 301 of the second terminal 503b on radio node 502b, and the access control module in the frequency spectrum corporate management unit 208 is with the 301 ownership frequency bands of being appointed as these two terminals.The reporting parameters unit, radio-frequency channel 706 of the first terminal 503a and the second terminal 503b has reported its radio-frequency channel parameter to network respectively, comprise: its transmission channel 704 has the ability that covers frequency band 301,304 and ground digital television broadcast frequency range 470MHz~698MHz, and two receive path 702,703 has the ability that covers frequency band 301,302,303 and ground digital television broadcast frequency range 470MHz~698MHz.
(2) in second time interval, the emission on its ownership frequency band 301 of the transmission channel 704 of the first terminal 503a directly sends the request signal of business datum to the second terminal 503b, perhaps the emission on its ownership frequency band 301 of the transmission channel 704 of the second terminal 503b directly receives the request signal of business datum from the first terminal 503a.
(3) in the 3rd time interval, the TDD subsystem sends the frequency band scheduling instruction to first terminal and second terminal on its ownership frequency band 301, and indicate following parameter to terminal: 1) terminal is with the frequency band B_sch of use and the position of time slot thereof; 2) transmission channel 704 of control first terminal is launched on the assigned timeslot TS_T on the radio frames on the B_sch, the receive path 702 of controlling second terminal with or 703 on identical time slot TS_T, receive; And, control first terminal receive path 702 and or 703 on the assigned timeslot TS_R on the radio frames on the B_sch, receive, control the transmission channel 704 of second terminal and on the same assigned timeslot TS_R on the same radio frames on the B_sch, launch, to realize shake hands control and automatic re-transmission the in the transmission.The access band information that the channel control unit 705 of terminal issues according to network is configured to the transmission channel and the receive path of terminal on the frequency band B_sch.
(4) in the 4th time interval, first terminal and second terminal send to the TDD subsystem respectively and finish and receive indication information, and the TDD subsystem is cancelled the time slot of distributing to these two terminals at B_sch.
In the present embodiment, frequency band B_sch is a frequency band of using from digital television broadcasting frequency range 470MHz~698MHz.Frequency band B_sch also can be the licensed band of TDD system, also can be the frequency band of exempting from the licensed band.
Fig. 8 shows the instantiation schematic diagram according to the method for the dispatch terminal of the embodiment of the invention, as shown in Figure 8, can this embodiment be described with reference to wireless access network shown in Figure 2, specifically may further comprise the steps:
Step S802, one group of candidate band is determined for the multiband scheduling in frequency spectrum corporate management unit 208, specifically implements by following three steps.
The first step, one group of potential frequency band is determined for terminal in frequency spectrum corporate management unit 208.
Particularly, frequency spectrum corporate management unit 208 is from M the frequency band that place, ownership the radio-frequency channel radio node and the relevant radio node thereof of terminal had, choosing to be had the frequency band of idle time slot as the channel measurement frequency band by terminal-receiving passage or transmission channel covering N, wherein, above-mentioned relevant radio node can be one of following radio node: the radio node of the sub-district adjacent with sub-district, terminal place, perhaps, under layered network architecture, cover the radio node of other one deck of sub-district, terminal place; Further, in order to reduce the surveying work amount of terminal, in a plurality of frequency bands of a shared same antenna, only choose one of them and carry out channel measurement.
In second step, terminal mode with appointment on the potential frequency band of frequency spectrum corporate management unit 208 appointments is carried out channel measurement, and the specific implementation process to this step is described in detail below.
At first, frequency spectrum corporate management unit 208 carries out the instruction of channel measurement to the terminal transmission to potential frequency band by the ownership passage of terminal on the ownership frequency band of terminal, this channel measurement instruction comprises: the numbering of frequency band to be measured, place, the radio-frequency channel radio node that uses frequency band to be measured or the numbering of used antenna, terminal is carried out channel measurement on potential frequency band mode; Then, terminal is measured and calculating path loss parameter potential frequency band according to the frequency band and the metering system of network appointment.
Wherein, the terminal mode of carrying out channel measurement on potential frequency band has following two kinds:
(1) terminal sends predetermined channel detection signal to network on frequency band to be measured, and one or more radio node of network side is at receive channel detectable signal on the frequency band corresponding and calculate the path loss between terminal and radio node on this frequency band.
(2) terminal receives from the known measuring-signal of the form of one or more radio node on frequency band to be measured, and calculates the path loss between terminal and radio node on this frequency band, and measurement result is reported frequency spectrum corporate management unit 208.
Above-mentioned terminal in the method for transmitting channel detectable signal on the potential frequency band is: a transmission channel of terminal uses on the identical frequency band of two antennas of terminal to network transmitting channel detectable signal in the mode of time-division, one or more radio node of network side synchronously the channel detection signal that sends of receiving terminal and computing terminal to the channel impulse response data and the path loss of above-mentioned radio node; When radio node comprised a plurality of reception antenna, path loss was the mean value of each transmitting antenna of terminal to one group of path loss of a group of received antenna.
The method of above-mentioned terminal receive channel detectable signal on potential frequency band is: two transmission channels of terminal receive the known measuring-signal of form that radio node sends simultaneously and calculate the channel impulse response of every group of dual-mode antenna; When radio node comprised a plurality of transmitting antenna, path loss was each reception antenna of terminal and the mean value of the path loss between the transmitting antenna on one group of radio node, and terminal reports network by its ownership frequency band with the measured value of path loss.
In the 3rd step, the candidate band of one group of multiband scheduling is determined in frequency spectrum corporate management unit 208 to the measurement result of potential frequency band according to terminal.
Particularly, frequency spectrum corporate management unit 208 compares terminal on potential frequency band with the path loss of different radio node and the thresholding TH_los of reservation, and a surviving path loss is less than the potential frequency band on the radio node of subscribing thresholding TH_los; Frequency spectrum corporate management unit 208 sorts the path loss that remains less than the size of the potential frequency band on the radio node of subscribing thresholding TH_los according to its path loss, when two or more candidate band are when belonging to the same frequency band of different radio node, pairing that candidate band of radio node that only keeps a path loss minimum, consequently in the candidate band of selecting, there is not the frequency band that repeats.
Step S804, target band and mode of operation thereof are determined in frequency spectrum corporate management unit 208 from candidate band, particularly, can implement by following three steps.
The first step, frequency spectrum corporate management unit 208 takies the idle frequency spectrum resource data that logging modle is obtained each candidate band from frequency spectrum, and make the following judgment: judge whether to exist its idle frequency spectrum resource of a frequency band can satisfy the professional needed frequency spectrum resource of terminal request, in judged result is under the situation that is, proceeds to for second step; In judged result is under the situation not, further judge whether to exist two or more its idle time slots to have staggered frequency band in time, and exist frequency spectrum resource on the idle time slot that interlocks in time with different frequency bands to be connected in series the professional needed frequency spectrum resource that can satisfy terminal request after the use successively these, in the judged result of further judging is under the situation that is, proceeded to for the 3rd step, in the further judged result of judging is under the situation not, stops the multiband of terminal is dispatched or reduced the credit rating of the business of terminal request.
In second step, frequency spectrum corporate management unit 208 is with the target band of an above-mentioned single frequency band as the multiband scheduling.
In the 3rd step, frequency spectrum corporate management unit 208 is two or the frequency band target band as the multiband scheduling, and determines an order of using the idle time slot on these target band successively for terminal.
Step S806, frequency spectrum corporate management unit 208 sends the multiband dispatch command by the ownership frequency band to terminal.
Wherein, the multiband dispatch command that sends comprises following content: the numbering of the target band of determining among the step S804, the numbering of target band place WAP (wireless access point) and terminal be to the occupation mode of target band, and terminal comprises one of following mode to the occupation mode of target band: terminal uses a target band to transmit data, terminal uses two or more target band to transmit data serially in a radio frames successively.
Further, dispatch command is the position of terminal assignments running time-frequency resource of transmitting channel detectable signal on target band; The result of network based channel detection, further for terminal assignments transmits the Radio Link form of data between terminal of working on the target band and network, above-mentioned Radio Link form is one of following: space diversity, spatial reuse.
After terminal was received above-mentioned dispatch command, according to the mode that dispatching command indicates, terminal communicated with network on target band, and perhaps terminal communicates with the another one terminal on target band.
Below in conjunction with method shown in Figure 8, be elaborated in the downlink transfer terminal being carried out the multiband scheduling, and this example is described with reference to Fig. 2, Fig. 5 and Fig. 6, wherein, can constitute an isomery multiband distributed communication system according to multichannel terminal shown in the heterogeneous radio access networks shown in Fig. 2, Fig. 6 and networking mode shown in Figure 5.
Below with reference to networking mode shown in Figure 5, be given in the specific implementation method of dispatch terminal 503a between different frequency bands.Multiband scheduler module in the joint spectrum administrative unit of network side is carried out before the multiband scheduling to terminal 503a, the frequency band 302 of terminal 503a on radio node 501 be last has finished Cell searchings and synchronously, and the access control module in the frequency spectrum corporate management unit 208 is with the 302 ownership frequency bands of being appointed as this terminal.The radio-frequency channel reporting parameters module 608 of terminal 503a reports its radio-frequency channel parameter to network side respectively, this radio-frequency channel parameter specifically comprises: the transmission channel 606 of terminal has the ability that covers frequency band 301,304, and two receive path 602,604 has the ability that covers frequency band 301, frequency band 302, frequency band 303.
At first, frequency spectrum corporate management unit 208 is that the multiband scheduling determines one group of candidate band, is divided into for three steps below to carry out this process is described in detail.
The first step, 3 of being had from place, the ownership radio-frequency channel radio node 502b of terminal 503a and relevant radio node 502a, radio node 502c and radio node 501 in frequency spectrum corporate management unit 208 can be used for the frequency band 301,302,303 of downlink transfer, choose 3 frequency bands 301,302,303 that idle time slot is arranged that can be covered by terminal-receiving passage or transmission channel as the channel measurement frequency band.
In second step, terminal is carried out channel measurement in the mode of appointment on the potential frequency band 301,302,303 of frequency spectrum corporate management unit 208 appointments.
Particularly, frequency spectrum corporate management unit 208 carries out the instruction of channel measurement to the terminal transmission to potential frequency band by the ownership passage of terminal on the ownership frequency band of terminal, the channel measurement instruction comprises: frequency band 301 to be measured, 302,303 numbering, use place, the radio-frequency channel radio node 501a of frequency band to be measured, 502b, 502c and 501 numbering, and designated terminal is at frequency band 301 to be measured, 302, receive on 303 from radio node 501a, 502b, 502c and 501 measuring-signal, and calculate on this frequency band between terminal and radio node channel impulse response and path loss between every pair of dual-mode antenna, and measurement result reported frequency spectrum corporate management unit 208, particularly, terminal is to from radio node 501a, 502b, the measuring-signal of 502c and 501 FDD down going channel is to be used for reference signal (the Reference Signal Received Power that switch the sub-district, abbreviate RSRP as), terminal is the reference signal or the antenna identification signal of the emission of MBMS system to the measuring-signal of the frequency band 303 on 501.
In the 3rd step, the candidate band of one group of multiband scheduling is determined in frequency spectrum corporate management unit 208 to the measurement result of potential frequency band according to terminal.
Particularly, frequency spectrum corporate management unit 208 compares terminal on potential frequency band 301,302,303 with the path loss of different radio node and the thresholding TH_los of reservation, surviving path loss is less than the potential frequency band on the radio node of subscribing thresholding TH_los, and the result who obtains is: have only the frequency band on radio node 502b and the radio node 501 to be retained; After this, frequency spectrum corporate management unit 208 sorts the path loss that remains less than the size of the potential frequency band on the radio node of subscribing thresholding TH_los according to its path loss, see Fig. 8 according to terminal to the ranking results of the path loss of radio node, increase successively from its path loss of first frequency band to the, three frequency bands, causing path loss between radio node 501 and the terminal is that radio node 501 high decorating positions make to have good propagation path between radio node 501 and the terminal less than the reason of radio node 502b, so 301,302,303 as candidate band.
Secondly, target band and mode of operation thereof are determined in frequency spectrum corporate management unit 208 from candidate band, are divided into for two steps below this process is described in detail.
The first step, frequency spectrum corporate management unit 208 takies the idle record of logging modle to the different frequency bands on each radio node according to frequency spectrum, obtains the current idle data of frequency band 301,302,303, sees Fig. 9 (a).Then, judge that the frequency spectrum resource that whether has in the frequency band 301,302,303 on its idle time slot of a frequency band can satisfy the spectrum requirement of the business that terminal asks, can meet the demands if judged result is the frequency spectrum resource on the idle time slot on the frequency band 301, then proceed to for second step.
In above-mentioned scheduling process, if to whether exist its idle frequency spectrum resource of a frequency band can satisfy terminal request professional needed frequency spectrum resource judged result whether, then frequency spectrum corporate management unit 208 is further done as judging: in candidate band 301,302, whether exist two its idle time slots to have staggered frequency band in time in 303, and exist frequency spectrum resource on the idle time slot that interlocks in time with different frequency bands to be connected in series the professional needed frequency spectrum resource that can satisfy terminal request after the use successively these, judged result is to see Fig. 9 (b): with the idle frequency band in frequency band 301 descending time slots 1., 2. idle time slot in the frequency band 302 passes and connects the professional needed frequency spectrum resource that use can be satisfied terminal request.
Second step, the target band that frequency spectrum corporate management unit 208 will above-mentioned frequency band 301 be dispatched as multiband, and with the frequency spectrum resource on the frequency band 301 idle time slots 1. assignment use to terminal.
At last, frequency spectrum corporate management unit 208 sends the multiband dispatch command by the ownership frequency band to terminal; Wherein, the multiband dispatch command of transmission comprise numbering, the target band 301 place WAP (wireless access point) 502b of the determined target band 301 of one of following at least content: step S804 numbering, the frequency spectrum resource on the frequency band 301 idle time slots 1. the position indication and the running time-frequency resource position of terminal 503a transmitting channel detectable signal on target band 301.
In addition, frequency spectrum corporate management unit 208 sends the multiband dispatch command by the ownership frequency band to terminal, and the multiband dispatch command of transmission comprises following content: the numbering of above-mentioned definite target band 301 and 302 numbering, target band 301 and 302 place WAP (wireless access point) 502b and 501 and terminal 503a are to the serial occupation mode of target band 301 and 302.Terminal 503a to the serial occupation mode of target band 301 and 302 is: the receive path of terminal 402 and receive logical 403 and receive data at the idle time slot of frequency band 301 on 1. earlier, jump to idle time slot in the frequency band 302 then and 2. go up and receive data.
In the present embodiment, network side determines that according to the measurement of the channel detection signal that terminal is launched the mode that 1. the idle time slot of terminal on frequency band 301 gone up with double-current spatial reuse receives the data that network sends, and sees Fig. 9 (a) on target band 301.
Further, for the raising system has the service efficiency of frequency band, the different frequency bands that the access control module in the frequency spectrum corporate management unit 208 is used system falls the ordering processing, sees Figure 10.If to the judged result of candidate band 301,302,303 is not exist its idle time slot and bandwidth to satisfy the frequency band of terminal traffic demand, even if by two frequency bands 1. and serial connection 2. use the needs that also can't satisfy terminal.Appearance for fear of this situation, the different frequency bands that access control module in the frequency spectrum corporate management unit 208 is used system falls to sort and handles, a kind of implementation method of ordering of falling is: the business in frequency band 301 descending time slots is begun prime direction arrangement to radio frames from the up-downgoing transfer point, allow idle time slot 1. concentrate and appear at descending time slot original position one side.By the idle time slot on the frequency band 301 1. with frequency band 302 in idle time slot 2. be connected in series use, can maximally utilise the idle time slot in the radio frames, see Figure 10.
Below in conjunction with method shown in Figure 8, to being elaborated of dispatch terminal between two non-paired frequency bands, and this example is described with reference to Fig. 2, Fig. 5, Fig. 6 and Figure 11, wherein, can constitute an isomery multiband distributed communication system according to multichannel terminal shown in the heterogeneous radio access networks shown in Fig. 2, Fig. 6 and networking mode shown in Figure 5.
Structure to this isomery multiband distributed communication system describes, as shown in figure 11, the radio-frequency channel of TDD system is included in a TDD frequency band 301a and the 2nd TDD frequency band 301b goes up two radio-frequency channels of working, and, in networking mode shown in Figure 5, two radio-frequency channels that are operated on a TDD frequency band 301a and the 2nd TDD frequency band 301b of TDD system belong to same radio node (or same RRU) 502b, perhaps use same set of antenna or use to be installed in different antennae on the same site.In the present embodiment; there is a protection frequency band at interval in the 2nd TDD frequency band 301b with frequency band 301a in the TDD licensed band; in the present embodiment; the 2nd TDD frequency band 301b is the frequency band of licensed band 1900MHz~1920MHz of belonging to TDD, and the 2nd TDD frequency band 301b also can be from the idle frequency band of ground TV broadcast frequency range 470MHz~698MHz or the frequency band of exempting to borrow the licensed band.
Multiband scheduler module in the joint spectrum administrative unit 208 of the network side shown in Fig. 2 b is carried out before the multiband scheduling to terminal 503a, the frequency band 301a of terminal 503a on radio node 502b was last to have finished Cell searching and synchronous, and the access control module in the frequency spectrum corporate management unit 208 is appointed as 301a on the ownership frequency band of this terminal.The reporting parameters unit, radio-frequency channel 610 of terminal 503a has reported its radio-frequency channel parameter to network side respectively, this radio-frequency channel parameter comprises: the transmission channel 606 of terminal has the frequency band of covering 301a, frequency band 301b, the ability of frequency band 304 and ground digital television broadcast frequency range 470MHz~698MHz, and two receive paths 602 of terminal, 604 have the frequency band of covering 301a, frequency band 301b, frequency band 302, the ability of frequency band 303 and ground digital television broadcast frequency range 470MHz~698MHz, wherein, frequency band 4/ frequency band 1101 shown in Figure 11 is exactly a frequency band that belongs to 470MHz~698MHz.
Terminal is when network has been initiated transmission rate and has been the uplink service request of 200Mbps, and at first, frequency spectrum corporate management unit 208 is that one group of candidate band is determined in the multiband scheduling, and this process is described in detail in two steps below.
The first step, frequency band 301a, the frequency band 301b that frequency spectrum corporate management unit 208 is had from place, the ownership radio-frequency channel radio node 502b of terminal 503a and relevant radio node 502a, radio node 502c and radio node 501, the frequency band 302, choose the frequency band 301a that idle time slot is arranged, the frequency band 301b that can be covered by terminal-receiving passage or transmission channel as the channel measurement frequency band.
In second step, terminal is carried out channel measurement in the mode of appointment on potential frequency band 301a, the frequency band 301b of frequency spectrum corporate management unit 208 appointments.
Particularly, frequency spectrum corporate management unit 208 carries out the instruction of channel measurement to the terminal transmission to potential frequency band by the ownership passage of terminal on the ownership frequency band of terminal, the channel measurement instruction comprises: frequency band 301a to be measured, the numbering of frequency band 301b, use place, the radio-frequency channel radio node 502a of frequency band to be measured, 502b, the numbering of 502c, and designated terminal is at frequency band 301a to be measured, frequency band 301b goes up the transmitting channel detectable signal, the radio node radio node 502a of network side, 502b, the channel detection signal that 502c receiving terminal 503a sends also calculates on this frequency band between terminal and radio node channel impulse response and path loss between every pair of dual-mode antenna, and measurement result is reported frequency spectrum corporate management unit 208.
In the 3rd step, the candidate band of one group of multiband scheduling is determined in frequency spectrum corporate management unit 208 to the measurement result of potential frequency band according to terminal.
Particularly, frequency spectrum corporate management unit 208 compares terminal on potential frequency band 301a, frequency band 301b with the path loss of different radio node and the thresholding TH_los of reservation, surviving path loss is less than the potential frequency band on the radio node of subscribing thresholding TH_los, and the result who obtains is: frequency band 301a, frequency band 301b on the radio node 502b are retained; After this, frequency spectrum corporate management unit 208 sorts the path loss that remains less than the size of the potential frequency band on the radio node of subscribing thresholding TH_los according to its path loss, according to terminal to the ranking results of the path loss of radio node be: the path loss between terminal and the radio node 502b on frequency band 301a is less than frequency band 301b, frequency band 301a and frequency band 301b belong to from same radio node, terminal is that the frequency range of frequency band 301a is lower in the path loss on the frequency band 301a less than the reason of the path loss of terminal on frequency band 301b, so frequency band 301b, frequency band 301a is as candidate band.
Secondly, target band and mode of operation thereof are determined in frequency spectrum corporate management unit 208 from candidate band, below this process is described in detail.
Frequency spectrum corporate management unit 208 takies the idle record of logging modle to the different frequency bands on each radio node according to frequency spectrum, obtains frequency band 301a and the current idle data of frequency band 301b.Then, judge that the idle frequency spectrum resource on frequency band 301b or the frequency band 301a can satisfy the professional needed frequency spectrum resource of terminal request, in judged result is under the situation not, frequency spectrum corporate management unit 208 is further done as judging: whether the idle time slot at candidate band 301b and frequency band 301a exists staggered in time, and the frequency spectrum resource on these staggered in time idle time slots is connected in series the professional needed frequency spectrum resource that can satisfy terminal request after the use successively, in judged result is under the satisfiable situation, and frequency spectrum corporate management unit 208 is with the idle frequency band U1 in the frequency band 301a ascending time slot, frequency band U2 in the up idle time slot among the frequency band 301b is connected in series use to satisfy the professional needed frequency spectrum resource of terminal request.
At last, frequency spectrum corporate management unit 208 sends the multiband dispatch command by the ownership frequency band to terminal, wherein, the multiband dispatch command of transmission comprises following content: the numbering of numbering, target band 301a and the frequency band 301b place WAP (wireless access point) 502b of above-mentioned definite target band 501a and frequency band 301b and terminal 503a are to the serial occupation mode of target band 01a and frequency band 301b.Terminal 503a to the serial occupation mode of target band 301a and frequency band 301b is: first receive path 602 of terminal and second receives logical 604 and sends upstream data 1. earlier on the free time of frequency band 301a, terminal is when the transmission upstream data 1., 2. its receive path 606 carries out channel measurement to downstream signal on frequency band 301b, and, 3. measurement data is reported network in the mode of code book at frequency band 301a, 4. network is handed down to terminal by the down channel on the frequency band 301b with the mode of operation designation data of terminal on the uplink spectrum U2 on the frequency band 301b, terminal is after finishing up emission on the frequency band 301a, and 5. the mode of operation of 4. indicating according to the mode of operation designation data on the uplink spectrum U2 of frequency band 301b sends data to network.
As mentioned above, both solved the allocation problem of MBMS special carrier by means of the configuration mode of radio-frequency channel different classes of in the heterogeneous radio access networks of the present invention, also avoided terminal to receive the MBMS signal simultaneously and when carrying out point-to-point communication transmission channel to the interference of MBMS receive path, simultaneously, according to of the present invention on a plurality of frequency bands the method for dispatch terminal can effectively utilize idle time slot on the different frequency bands, improved the frequency spectrum service efficiency, and, under the situation of same terminal radio-frequency channel quantity, adopt merging of the present invention to use the method or the multiband dispatching method of frequency spectrum can significantly improve spectrum efficiency.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. a data transmission method is used for terminal and is using transmission or reception data on the frequency band, it is characterized in that:
At least one receive path of described terminal receives sub-district synchronizing signal, scheduling controlling order on the ownership frequency band of described terminal;
The transmission channel of described terminal is being used transmission service signal and channel detection signal on the frequency band.
2. method according to claim 1 is characterized in that,
Described ownership frequency band and the described frequency band of using on the non-paired frequency spectrum that frequency band is two existence protection intervals; wherein, in the radio frames on the described ownership frequency band on/there is overlapping in following/ascending time slot in descending time slot and the described radio frames of using on the frequency band on time of occurrence.
3. method according to claim 2 is characterized in that, the up/descending time slot on the described ownership frequency band and described descending/ascending time slot of using on the frequency band exist to overlap on time of occurrence and comprise:
In the time interval that the ascending time slot of the radio frames on a described ownership frequency band and a described frequency band of using in the frequency band occurs, on another frequency band, have at least a descending time slot to occur; Perhaps
In the time interval that the descending time slot of the radio frames on a described ownership frequency band and a described frequency band of using in the frequency band occurs, on another frequency band, have at least an ascending time slot to occur.
4. method according to claim 1 is characterized in that,
The signal of at least one receive path of described terminal on the ownership frequency band of described terminal receives and the transmission channel of described terminal carries out in the mode of half-duplex or full duplex in described signal emission of using on the frequency band.
5. method according to claim 4 is characterized in that,
The descending time slot of at least one receive path of described terminal on the ownership frequency band of described terminal receives in the control signal, and the transmission channel of described terminal is at the described ascending time slot transmitting channel detectable signal of using on the frequency band.
6. data transmission method is used for first terminal and second terminal at the non-attribution frequency band or use and carry out direct communication on the frequency band, it is characterized in that described method comprises:
Synchronous by between the WAP (wireless access point) of the Serving cell of its ownership frequency band and this terminal of described first terminal and described second terminal, realize keeping synchronous between described first terminal and described second terminal that participates in communicate by letter, wherein, described first terminal and described second terminal receive the control signal from the Serving cell WAP (wireless access point) on its ownership frequency band, and at its non-attribution frequency band or use send channel detectable signal on the frequency band.
7. method according to claim 6, it is characterized in that the operation that described first terminal and described second terminal receive from the control signal of Serving cell WAP (wireless access point) is specially: receiving scheduling control command on the ownership frequency band of at least one receive path of described first terminal and described second terminal in this terminal on its ownership frequency band.
8. method according to claim 6, it is characterized in that described first terminal and described second terminal are specially at its non-attribution frequency band or the operation of using send channel detectable signal on the frequency band: the transmission channel of described first terminal/second terminal is the transmitting channel detectable signal on the frequency band that receive path covered of second terminal/first terminal of direct communication with it.
9. according to each described method in the claim 6 to 8, it is characterized in that, described first terminal and described second terminal all receive the sub-district synchronizing signal on same ownership frequency band, and described first terminal and described second terminal all by with its ownership frequency band on synchronizing signal two terminal rooms of synchronous realization synchronously.
10. according to each described method in the claim 6 to 8, it is characterized in that, described first terminal sends business datum and/or channel detection signal on predetermined band and the official hour in the multiband scheduling controlling order that its ownership issues on frequency band, the receive path of described second terminal then receives business datum and/or the channel detection signal that first terminal sends on frequency band that the transmission channel with first terminal uses and time slot.
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